JP6449485B2 - Elevator equipment counterweight and elevator equipment - Google Patents

Description

  The present invention relates to an elevator apparatus counterweight and an elevator apparatus.

  The elevator apparatus includes a elevator car and a counterweight that are suspended by a main rope in a hoistway formed in a building. In order to avoid interference with equipment in the hoistway by reducing the hoistway dimensions, the weight pulley may be tilted and attached to the counterweight frame side on the horizontal surface of the counterweight body. .

  2. Description of the Related Art Conventionally, there is an elevator suspension device disclosed in Patent Document 1 that can change the inclination angle of a pulley attached to a lifting body such as a passenger car or a counterweight. In Patent Document 1, a mounting plate is fixed by a plurality of fasteners to an upper beam provided at an upper part of a lifting body that is lifted and lowered in a hoistway, and a shaft support member that supports a suspended axle is fixed to the mounting plate. The mounting plate has a plurality of insertion holes through which fasteners can be passed, and by selecting the insertion hole used to fix the mounting plate to the upper beam, the angle of inclination of the suspension axle relative to the upper beam is changed. The suspension vehicle can be arranged at the center of the lifting body.

Japanese Patent Laid-Open No. 2015-13699

  By the way, due to further reduction in hoistway dimensions in recent years, the hoisting machine cannot be arranged directly above the counterweight, and accordingly, the weight pulley is shifted from the center of the counterweight body, and the weight pulley is inclined. The mounting structure is increasing. However, the thing of patent document 1 aims at arrange | positioning a pulley in the center of a raising / lowering body, and is not considered about arrange | positioning the weight pulley shifted from the center of a counterweight main body. .

  The present invention relates to an elevator apparatus counterweight and an elevator apparatus that can support various specifications, including the case where the pulley mounted on the elevator body is arranged so as to be shifted from the pulley from the center of the elevator body. The purpose is to provide.

  The present invention relates to an elevator apparatus in which a pulley around which a main rope is wound is mounted on a car or a counterweight, and is fixed to the upper frame of the frame constituting the car or the counterweight, and a horizontal surface above the upper frame. A U-shaped plate having a substantially U-shaped cross-section, the U-shaped plate being mounted on the horizontal surface of the thick plate, and the U-shaped plate bottom being fixed to the thick plate. A plurality of mounting bolts and a bracket for supporting a pulley shaft fixed to the rising portion of the U-shaped plate, and the thick plate is formed with a plurality of female screw holes into which the plurality of mounting bolts are screwed. The mounting position of the U-shaped plate can be changed by changing the position of the female screw hole formed in the plate.

ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to respond | correspond to various specifications including the case where it arrange | positions from the pulley from the center of a raising / lowering body regarding the attachment of the pulley attached on a raising / lowering body.
Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a front view which shows the counterweight of the elevator apparatus which concerns on one Embodiment of this invention. It is a top view of the counterweight shown in FIG. It is a longitudinal cross-sectional view of the pulley part for weight shown in FIG. It is a top view which shows the mounting state to the thick plate of the U-shaped plate of the counterweight shown in FIG. It is a longitudinal cross-sectional view which shows the fixed state to the counterweight frame of the thick plate of the counterweight shown in FIG. It is a schematic diagram which shows an example of the elevator apparatus with which the counterweight of one Embodiment of this invention is applied.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a counterweight and an elevator apparatus for an elevator apparatus according to the present invention will be described with reference to FIGS. In the drawings, the same or similar components are denoted by the same reference numerals, and repeated description is omitted. In the present embodiment, the pulley attached on the lifting body will be described by taking a counterweight as an example of the lifting body, but the present invention can also be applied to the pulley attached on the passenger car.

  For example, as shown in FIG. 6, the elevator apparatus includes a car 200, a hoisting machine 300, a main rope 500, and a counterweight 1 as main components. Under the car 200, car lower pulleys 601 and 602 are provided. The hoisting machine 300 is installed at the bottom of the hoistway. A fixed plate 700 is provided near the top of the hoistway, and ends 901 and 902 of the main rope 500 are connected. Further, turning pulleys 801 and 802 are attached to the fixed plate 700. A weight pulley 4 is attached to the counterweight 1. One end 901 of the main rope 500 is connected to the fixed plate 700, and the sheave of the hoisting machine 300, the turning pulley 801, the lower pulleys 601 and 602, the turning pulley 802, and the weight pulley 4 are wound around in order. The other end 902 is connected to the fixed plate 700. When the main rope 500 is driven by the hoisting machine 300, the car 200 is moved up and down along a car guide rail (not shown), and the counterweight 1 is moved to a counterweight guide rail ( Ascend and descend along (not shown). In addition, the structure of an elevator apparatus is not limited to this. The arrangement of each pulley and hoisting machine is appropriately changed according to the specifications of the elevator apparatus.

Next, the detailed structure of the counterweight 1 of the elevator apparatus which concerns on one Embodiment of this invention is demonstrated using FIGS.
FIG. 1 is a front view of an upper portion of a counterweight of an elevator apparatus according to an embodiment of the present invention. FIG. 2 is a top view of the counterweight shown in FIG.
The counterweight 1 includes a pair of vertical frames 2a and 2b arranged on both sides, an upper frame 2c that connects the upper ends of the vertical frames 2a and 2b, and a lower frame that connects the lower ends of the vertical frames 2a and 2b (not shown). And a weight pulley 4 that is attached to the upper frame 2c via a bracket body 3 and on which a main rope (not shown) is wound.

A plurality of weights (not shown) are loaded on the counterweight frame 2 according to the weight of the car, and the counterweight frame 2 and the weights constitute a counterweight main body.
As shown in FIG. 2, each of the vertical frames 2a and 2b has a U-shaped cross-sectional shape, and is arranged so that the rising portions (or openings) face each other.
The upper frame 2c has two plate members arranged in pairs, and both ends thereof are fixed to the rising portions of the vertical frames 2a and 2b by bolts 14.

FIG. 3 is a longitudinal sectional view of a weight pulley portion in the present embodiment.
The bracket body 3 is composed of a vertical plate member 3a, 3b that pivotally supports the shaft 4a of the weight pulley 4 and a connecting member 3c that connects the upper portions of the vertical plate members 3a, 3b. .

  The weight pulley 4 has a rope groove around which the main rope is wound, and is rotatably supported by the bracket body 3 via a shaft 4a. A main rope detachment stop 13 is attached to the vertical plate members 3a and 3b below the weight pulley 4.

Next, regarding the attachment of the weight pulley 4 to the counterweight body in the elevator apparatus of the present embodiment, the structure will be described in order to correspond to the specifications of various elevator apparatuses.
In the counterweight of the elevator apparatus of the present embodiment, the position of the weight pulley 4 and the degree of freedom of inclination in the horizontal plane with respect to the counterweight main body are improved through the thick plate 5, the U-shaped plate 7, and the bracket body 3. The weight pulley 4 is attached to the upper part (upper frame 2c) of the counterweight body. In the present embodiment, first, the thick plate 5 is firmly fixed to the upper frame 2c. In other words, the thick plate 5 has a configuration in which the attachment to the upper frame 2c does not have to be changed according to the arrangement specification of the weight pulley. In this embodiment, the U-shaped plate 7 that supports the bracket body 3 is attached to the thick plate 5 by changing the position of the weight pulley and the inclination in the horizontal plane with respect to the counterweight body. It corresponds to the layout specification. And in this embodiment, in order to improve the freedom degree of attachment to the thick plate 5 of the U-shaped plate 7, by forming a female screw hole in the thick plate 5, and screwing a screw bolt in this female screw hole, The U-shaped plate 7 is attached and fixed to the thick plate 5.

  Hereinafter, it explains in detail using a drawing. FIG. 4 is a top view showing a state in which the U-shaped plate 7 of the counterweight according to the present embodiment is attached to the thick plate 5. FIG. 5 is a longitudinal sectional view showing a state in which the thick plate 5 is fixed to the counterweight frame 2 in the present embodiment.

  In the present embodiment, the thick plate 5 serves as a mounting base for the weight pulley, and has a predetermined thickness dimension H1 as shown in FIG. 5 and is formed so as to form a horizontal plane on the upper frame 2c. It is attached to the frame 2c. In the present embodiment, the thick plate 5 has a shape protruding from one upper frame 2c. This is because it corresponds to the specification in which the weight pulley 4 is shifted from the center of the counterweight body due to the arrangement of the hoisting machine. In other words, in this embodiment, the width of the thick plate 5 is larger than the width between the pair of upper frames 2c in order to correspond to various arrangement specifications of the weight pulley 4.

  In order to firmly fix the thick plate 5 to the upper frame 2c, in this embodiment, as shown in FIG. 5, there is a substantially U-shaped cross section (inverted U-shaped cross section on the drawing of FIG. 5). The first support member 9 disposed between the upper frames 2c and a substantially L-shaped cross section (reverse L-shaped cross section in the drawing of FIG. 5) are disposed on the side surface of one upper frame 2c. The second support member 10 is used. The second support member 10 has a shape in which the thick plate 5 protrudes from the upper frame 2c, and is used to maintain the strength of the protruding portion.

  As shown in FIG. 5, the thick plate 5 has a plurality of fixing bolts 11 (through holes) on the first support member 9 and the second support member 10 in a state where the thick plate 5 is placed on the pair of upper frames 2 c. Bolts and nuts). One rising portion of the first support member 9 (a portion extending downward in the drawing of FIG. 5) and one upper frame 2c are fixed using a plurality of fixing bolts 11 (through bolts and nuts), and the first support The other rising portion of the material 9 (the portion extending downward in the drawing of FIG. 5), the other upper frame 2c and the rising portion of the second support member 10 (the portion extending downward in the drawing of FIG. 5) are plural. Fixing bolts 11 (through bolts and nuts). In this way, the thick plate 5 is firmly fixed to the upper frame 2c and has sufficient strength including the protruding portion. In addition, unlike the attachment plate described in Patent Document 1, the thick plate 5 of the present embodiment does not change the attachment position with respect to the upper frame 2c according to the arrangement specification of the weight pulley.

  In the present embodiment, the thick plate 5 has a larger thickness than other members, that is, a vertical frame, an upper frame, and the like. Here, the predetermined thickness of the thick plate is a thickness designed to have sufficient strength for fixing the weight pulley 4. In the present embodiment, as will be described later, screw bolts are used as the mounting bolts 6 of the U-shaped plate 7 to the thick plate 5, and the thick plate 5 is formed with mounting holes (female screw holes) 8. Therefore, in order to ensure the necessary fixing strength, it is desirable that the thickness of the thick plate 5 be able to ensure the effective length (effective depth) of the mounting hole (internal thread hole). Therefore, it is desirable that the thickness of the thick plate 5 be as large as the effective diameter of the mounting bolt 6 designed in consideration of the number of mounting bolts 6 and the like.

  The plurality of fixing bolts 11 that fix the thick plate 5 to the first support member 9 and the second support member 10 are attached at positions that are not affected by the change in the arrangement specification of the weight pulley 4. Specifically, a plurality of fixing bolts 11 are located near the four corners of the thick plate 5, and the arrangement position of the thick plate 5 of the U-shaped plate 7 described later in the horizontal plane is easily changed.

  Next, attachment of the U-shaped plate 7 that supports the bracket body 3 to the thick plate 5 will be described. In the present embodiment, the U-shaped plate 7 has a substantially U-shaped cross section, and the horizontal portion (bottom portion) is attached to the horizontal surface of the thick plate 5. The U-shaped plate 7 supports the bracket body 3 at the rising portion (rising side). That is, the lower end portions of the vertical plate members 3 a and 3 b of the bracket body 3 are fixed to the rising portion of the U-shaped plate 7 by the plurality of fixing bolts 12. The horizontal portion and the rising portion of the U-shaped plate 7 may be formed at a right angle or may be connected at the R portion.

  For example, as shown in FIG. 4, the U-shaped plate 7 is attached to the thick plate 5 at a predetermined angle with respect to the counterweight body as viewed from directly above. This is because the weight pulley 4 supported by the U-shaped plate 7 corresponds to the specification in which the pulley 4 is disposed obliquely in view of the winding machine arrangement.

  The U-shaped plate 7 is attached to the thick plate 5 by a plurality of mounting bolts (screw bolts) 6 as shown in FIGS. In this embodiment, eight mounting bolts 6 are used.

  A plurality of attachment holes (internal thread holes) 8 into which the attachment bolts 6 are screwed are tapped in the thick plate 5 at positions corresponding to the arrangement specifications of the weight pulley 4. In the horizontal portion of the U-shaped plate 7, an insertion hole through which the mounting bolt 6 is inserted is formed at a position facing the mounting hole 8.

  With the mounting bolt 6 inserted into the insertion hole, the U-shaped plate 7 is attached to the thick plate 5 by screwing the mounting bolt (screw bolt) 6 into the mounting hole (female screw hole) 8 of the thick plate 5. Fixed.

  As in this embodiment, by forming a female screw hole in the thick plate 5 and mounting and fixing the U-shaped plate 7 using a screw-in bolt, the U-shaped is placed at an almost arbitrary position in the horizontal plane of the thick plate 5. A plate 7 can be attached. That is, if a screw bolt is used as the attachment bolt 6 and the attachment bolt 6 is screwed into the female screw hole which is the attachment hole 8 of the thick plate 5, when determining the position of the attachment bolt 6, the counterweight body (particularly, There is no need to basically consider interference with the counterweight frame, and the position of the mounting bolt can be set in accordance with the arrangement specification of the weight pulley 4. In order to surely eliminate interference with the counterweight body (particularly the counterweight frame), the mounting holes (internal threaded holes) 8 of the mounting bolts 6 formed on the thick plate 5 have thick plates 5 as shown in FIG. It is desirable to make it a non-through hole that does not pass through. As a result, when the U-shaped plate 7 is attached to the thick plate 5 by the mounting bolt 6, the tip of the mounting bolt 6 does not protrude from the thick plate 5, and it is ensured that the mounting bolt 6 interferes with the counterweight body. Can be prevented. Thereby, since it becomes unnecessary to consider the positional relationship with the counterweight main body about arrangement | positioning of the attachment bolt 6, arrangement | positioning of the attachment bolt 6 can be set freely. Therefore, as shown in FIG. 4, the mounting bolts 6 can be evenly arranged, and the load received by each mounting bolt 6 can be equalized. Thereby, it can be set as the attachment structure of the pulley for weights with high intensity | strength. In place of the mounting bolt 6, a planting bolt and a nut may be used.

  In addition, in order to improve the freedom degree of the arrangement position of the attachment bolt 6, it is important to form the insertion hole of the attachment bolt 6 in a horizontal part using the U-shaped plate 7 like this embodiment. . For example, when two L-shaped plates are combined so that the horizontal portion (bottom) extends to the opposite side to the opposite side, the installation range of the mounting bolt 6 becomes too wide, and the horizontal portion of the L-shaped plate This is because interference between the thick plate 5 and the head of the fixing bolt 11 is likely to occur, and it is difficult to change the position of the thick plate 5 in the horizontal plane. From the viewpoint of making the installation range of the mounting bolt 6 the same as that of the U-shaped plate 7, it is conceivable that two L-shaped plates are combined and installed so that the horizontal portions face each other (for example, U shown in FIG. 4). This corresponds to the case where the U-shaped plate 7 is divided into two.) However, in this case, the parallelism of the two L-shaped plates must be maintained, and the handleability is lowered. Therefore, the U-shaped plate 7 is more desirable.

  In the present embodiment, the thick plate 5 is previously tapped, that is, the attachment holes (internal thread holes) 8 for the attachment bolts 6 are formed in accordance with the specifications of the installed elevator apparatus. The specification of the elevator apparatus of the present embodiment is that the weight pulley 4 is shifted from the center of the counterweight body, and the weight pulley 4 is tilted and attached. Thus, the position of the attachment hole 8 in the thick plate 5 determines the position of the weight pulley 4 with respect to the counterweight body. Thereafter, the horizontal portion of the U-shaped plate 7 is opposed to the horizontal surface of the thick plate 5, the insertion hole of the U-shaped plate 7 and the mounting hole 8 of the thick plate 5 are aligned, and the mounting bolt 6 is inserted into the insertion hole. In this state, the mounting bolt 6 is screwed into the mounting hole 8 of the thick plate 5, and the U-shaped plate 7 is attached and fixed to the thick plate 5. Next, the lower end portions of the vertical plate members 3 a and 3 b of the bracket body 3 are fixed to the rising portion of the U-shaped plate 7 by the fixing bolt 12. With these structures, the weight pulley 4 is attached to the counterweight body.

  As described above, in the present embodiment, for attachment of the weight pulley 4 to the counterweight body, the thick plate 5 that is fixed to the upper frame 2c and forms a horizontal surface on the upper frame 2c, and a substantially U-shaped cross section. The horizontal portion is mounted on the horizontal surface of the thick plate via mounting bolts 6 and has a U-shaped plate 7 that supports the bracket body 3 at the rising portion. The mounting position of the U-shaped plate 7 can be changed by changing the position of the mounting hole 8 of the mounting bolt 6 formed in the thick plate 5. By these, it can respond to various specifications regarding attachment of the weight pulley 4 to the counterweight body. In other words, the thick plate 5 and the U-shaped plate 7 are combined, and the U-shaped plate 7 is attached to the thick plate 5 with the mounting bolt (screw bolt) 6 so that the U-shaped plate 7 is mounted. The position can be easily changed, and as a result, it is possible to easily cope with misalignment attachment and oblique attachment with respect to the counterweight main body of the weight pulley 4. This makes it possible to share parts among elevator devices having a plurality of specifications, thereby reducing costs.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Moreover, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  For example, in the above-described embodiment, the thick plate 5 has a shape protruding from the one upper frame 2c. However, the present invention is not limited to this, and may have a size and shape that do not interfere with the equipment in the hoistway. That's fine. Further, although the eight mounting bolts 6 for attaching the U-shaped plate 7 to the thick plate 5 are used, any number may be used as long as the necessary strength can be ensured. Moreover, you may comprise the bracket body 3 and the U-shaped plate 7 as an integrated object. However, a separate body is desirable from the viewpoint of workability of rope replacement. In the above-described embodiment, the counterweight is described as an example of the lifting body. However, in the elevator apparatus in which the pulley is mounted on the car, the present invention can also be applied to the mounting of the pulley that is mounted on the car. .

  DESCRIPTION OF SYMBOLS 1 ... Counterweight, 2 ... Counterweight frame, 2a, 2b ... Vertical frame, 2c ... Upper frame, 3 ... Bracket body, 4 ... Weight pulley, 5 ... Thick plate, 6 ... Mounting bolt (screw bolt), 7 ... U-shaped plate, 8 ... Mounting hole (female screw hole)

Claims (9)

An elevator apparatus comprising a car, a counterweight, a hoisting machine, and a main rope, wherein the main rope is driven by the hoisting machine to raise and lower the car and the counterweight relatively. In an elevator apparatus to which a pulley around which the main rope is wound is mounted on a car or the counterweight,
A thick plate that is fixed to the upper frame of the frame constituting the car or the counterweight and forms a horizontal surface on the upper frame;
A U-shaped plate having a substantially U-shaped cross section, and a bottom of the U-shaped being mounted on the horizontal surface of the thick plate;
A plurality of mounting bolts for fixing the bottom of the U-shaped plate to the thick plate;
A bracket that supports the shaft of the pulley fixed to the rising portion of the U-shaped plate,
The thick plate is formed with a plurality of female screw holes into which the plurality of mounting bolts are screwed,
The plurality of female screw holes formed in the thick plate are female screw holes formed so as not to penetrate the thick plate. The elevator apparatus according to claim 1 ,
The thick plate has a width larger than the width of the upper frame so as to protrude from the upper frame when the upper frame is viewed from directly above. The elevator apparatus according to claim 2 ,
The thick plate is fixed to the upper frame via a plurality of support members fixed to the upper frame,
The plurality of support members include a first support member disposed inside the upper frame and a second support member disposed outside the upper frame,
The elevator apparatus characterized by supporting the part which protruded from the said upper frame of the said thick plate by said 2nd support member. An elevator apparatus comprising a car, a counterweight, a hoisting machine, and a main rope, wherein the main rope is driven by the hoisting machine to raise and lower the car and the counterweight relatively. In an elevator apparatus to which a pulley around which the main rope is wound is mounted on a car or the counterweight,
A thick plate that is fixed to the upper frame of the frame constituting the car or the counterweight and forms a horizontal surface on the upper frame;
A U-shaped plate having a substantially U-shaped cross section, and a bottom of the U-shaped being mounted on the horizontal surface of the thick plate;
A plurality of mounting bolts for fixing the bottom of the U-shaped plate to the thick plate;
A bracket that supports the shaft of the pulley fixed to the rising portion of the U-shaped plate,
The thick plate is formed with a plurality of female screw holes into which the plurality of mounting bolts are screwed,
The thick plate has a width larger than the width of the upper frame so as to protrude from the upper frame when the upper frame is viewed from directly above.
The thick plate is fixed to the upper frame via a plurality of support members fixed to the upper frame,
The plurality of support members include a first support member disposed inside the upper frame and a second support member disposed outside the upper frame,
The elevator apparatus characterized by supporting the part which protruded from the said upper frame of the said thick plate by said 2nd support member. The elevator apparatus according to claim 3 or 4 ,
When viewed from directly above the frame body, the pulley is disposed to be inclined with respect to the frame body at a position deviated from the center of the frame body, and the pulley is disposed on the thick plate according to the position of the pulley. An elevator apparatus in which a female screw hole is formed. The elevator apparatus according to claim 1 or 4 ,
The said U-shaped plate is divided | segmented in the said bottom part, The elevator apparatus characterized by the above-mentioned. The elevator apparatus according to claim 1 or 4 ,
The bracket device and the U-shaped plate are formed as a single body. It is a counterweight of the elevator device,
A pair of vertical frames having a U-shaped cross-sectional shape and arranged such that the opening sides face each other, a lower frame connecting the lower ends of the pair of vertical frames, and an upper connecting the upper ends of the vertical frames A counterweight frame composed of frames;
A weight loaded on the counterweight frame;
A pulley provided on an upper surface of the upper frame, around which a main rope is wound;
A thick plate fixed to the upper frame and forming a horizontal surface on the upper frame;
A U-shaped plate having a substantially U-shaped cross section, and a bottom of the U-shaped being mounted on the horizontal surface of the thick plate;
A plurality of mounting bolts for fixing the bottom of the U-shaped plate to the thick plate;
A bracket that supports the shaft of the pulley fixed to the rising portion of the U-shaped plate,
The thick plate is formed with a plurality of female screw holes into which the plurality of mounting bolts are screwed ,
The counterweight of an elevator apparatus , wherein the plurality of female screw holes formed in the thick plate are female screw holes formed so as not to penetrate the thick plate . It is a counterweight of the elevator device,
A pair of vertical frames having a U-shaped cross-sectional shape and arranged such that the opening sides face each other, a lower frame connecting the lower ends of the pair of vertical frames, and an upper connecting the upper ends of the vertical frames A counterweight frame composed of frames;
A weight loaded on the counterweight frame;
A pulley provided on an upper surface of the upper frame, around which a main rope is wound;
A thick plate fixed to the upper frame and forming a horizontal surface on the upper frame;
A U-shaped plate having a substantially U-shaped cross section, and a bottom of the U-shaped being mounted on the horizontal surface of the thick plate;
A plurality of mounting bolts for fixing the bottom of the U-shaped plate to the thick plate;
A bracket that supports the shaft of the pulley fixed to the rising portion of the U-shaped plate,
The thick plate is formed with a plurality of female screw holes into which the plurality of mounting bolts are screwed,
The thick plate has a width larger than the width of the upper frame so as to protrude from the upper frame when the upper frame is viewed from directly above.
The thick plate is fixed to the upper frame via a plurality of support members fixed to the upper frame,
The plurality of support members include a first support member disposed inside the upper frame and a second support member disposed outside the upper frame,
The counterweight of the elevator apparatus, wherein a portion protruding from the upper frame of the thick plate is supported by the second support member.

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