JP4776031B2 - Blow penetration test equipment - Google Patents

Description

  The present invention relates to a striking penetrating test apparatus for striking a rod and penetrating into the ground and investigating the stratum structure and ground strength at that point.

  Conventionally, in various civil engineering work sites, in order to proceed safely and efficiently, the ground of the site is investigated before construction work. This ground survey is carried out by a so-called penetration test, in which various soil types at each depth are judged and the hardness and tightness of the ground are determined according to the type of soil, and various types of impact penetration tests are performed. The device is used. Moreover, since this impact penetrating test apparatus is used by being transported to various civil engineering work sites, it is an object to create an impact penetrating test apparatus that can be easily transported by an operator.

  As an impact penetrating test apparatus created in view of the above problems, there is an impact penetrating test apparatus disclosed in JP-A-2-266246. This hammering penetration test apparatus includes a frame standing on a movable carriage, a hammer that moves up and down along the frame, a lifting drive source that lifts and lowers the hammer by attaching a wire to the hammer and winding the wire. And a rod disposed below the hammer and penetrating into the ground by hammering. Thus, in the impact penetrating test apparatus having a carriage, the worker can move it by placing it on the ground, so the burden on the operator can be reduced.

JP-A-2-266246

  However, in the impact penetrating test apparatus described above, when this is placed on the platform of a transport vehicle and transported to another work site, a number of workers must lift the impact penetrating test apparatus and place it on the platform. Therefore, this unloading work has become a great burden on the operator.

The impact penetrating test apparatus of the present invention has been created in view of the above-described problems, and includes a first sprocket and a second sprocket that are arranged above and below a support, and a circulatory movement that is wound around these sprockets. An elevator unit configured by unitizing one endless chain, a hammer that engages with the first endless chain of the elevator unit, and is lifted and dropped along with the circulation movement of the first endless chain; A motor for applying rotational drive to the first sprocket and the second sprocket of the elevator unit, a third sprocket that engages with a drive shaft of the motor and can rotate integrally, and the first sprocket or the second sprocket A fourth sprocket that engages with the rotation shaft of the sprocket and can rotate integrally therewith, and the third sprocket and the fourth sprocket The second endless chain wound around the procket is unitized to be detachable from the elevator unit and the motor, and the rotational drive of the motor is applied to the first sprocket and the second sprocket of the elevator unit. A transmission unit for transmitting .

The motor, a table on which the motor is loaded, and a plate surrounding the motor are unitized to form a motor unit, and the elevator unit is fitted along a guide rail provided on the upper surface of the motor unit. It is configured.

  The hammer penetration test apparatus of the present invention can easily separate the hammer unit, the hammer lifting / lowering chain unit, the hammer lifting / lowering motor unit and the transmission unit, so that they can be conveyed separately. Moreover, when assembling these, when mounting a hammer raising / lowering chain unit on the upper surface of the said hammer raising / lowering motor unit, the guide rail is attached to the upper surface of the said hammer raising / lowering motor unit. Therefore, the hammer elevating chain unit can be placed at an accurate position in each assembly by simply placing the hammer elevating chain unit along the guide rail.

  Further, when the transmission unit is attached to the hammer lifting motor unit and the hammer lifting chain unit, the transmission unit is driven by the main driving shaft rotatably attached to the output shaft of the hammer lifting motor, And it is comprised from the driven shaft which transmits rotation to the said hammer raising / lowering chain unit, It is comprised so that either one of these main drive shafts and a driven shaft can be rotationally operated from the exterior. For this reason, one end of the main driving shaft or the driven shaft rotates to a phase engageable with the output shaft of the hammer lifting motor or the hammer lifting chain unit, so that the operator attaches the transmission unit only by rotating from the outside. be able to.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. In FIG. 1 to FIG. 5, reference numeral 1 denotes an impact penetrating test apparatus, which is configured by mounting an impact unit 20 on a base unit 10. The base unit 10 uses the structure disclosed in Japanese Patent Application Laid-Open No. 2004-263417. That is , as shown in FIGS. 4 and 5, the base unit 10 has a first support column 11 erected on a stand 18, and a lifting platform 12 is guided to the first support column 11 so as to be movable up and down. . A sprocket (not shown) is rotatably provided on the lifting platform 12 so as to be located on the back side of the first support column 11, and the sprocket is linearly arranged in the vertical direction on the back surface of the first support column 11. The chain member 11a is attached so as to extend. The sprocket is connected to a unit lifting / lowering motor 16 through a clutch mechanism (not shown), and is configured to be rotated by being driven by the unit lifting / lowering motor 16.

  As shown in FIG. 1, the hitting unit 20 includes an elevator unit 30 and a hammer unit 90.

  As shown in FIGS. 2 and 3, the elevator unit 30 is placed on a table 31 that is detachably connected to the lifting platform 12 of the base unit 10. The elevator unit 30 includes a hammer lifting motor unit 50, a hammer lifting chain unit 80 mounted on the hammer lifting motor unit 50, and the hammer lifting chain unit 80 driven by the hammer lifting motor unit 50. It is comprised from the transmission unit 60 which transmits.

  The hammer lifting / lowering motor unit 50 has a hammer lifting / lowering motor 51 mounted on the table 31. The tip of the output shaft 51a of the hammer elevating motor 51 has a torque shape, and is configured to engage with an inner engagement hole 68a of a torque coupling 68 of the transmission unit 60 described in detail later. The table 31 is provided with two mounting plates 52 and 53 erected perpendicularly to the upper surface of the table 31 with the hammer lifting motor interposed therebetween. A hammer raising / lowering motor 51 is fixed. Further, a top plate 54 is attached to the upper surfaces of the two attachment plates 52 and 53 so as to be parallel to the table 31, and the hammer lifting chain unit 80 is placed on the top plate 54. A side wall plate 55 is attached to the opening surface formed by the mounting plates 52 and 53 and the top plate 54. The side wall plate 55 is configured such that the tip of the output shaft 51a of the hammer lifting motor 51 can protrude. ing.

  Guide rails 56 and 57 extending in parallel to the top plate 54 are attached to the top surface of the top plate 54. These guide rails 56 and 57 are arranged in parallel with an interval at which a bottom surface 81a of a second support column 81 of a hammer lifting chain unit 80, which will be described in detail later, can be inserted. The guide rails 56 and 57 and the top plate 54 are configured to slide along the guide rails 56 and 57. That is, the guide rails 56 and 57 are for assisting the placement of the hammer lifting chain unit 80 on the top surface of the top plate 54 by an operator. It is comprised so that the position to mount may be determined.

  As shown in FIGS. 6 and 9, the transmission unit 60 has a unit cover 61. Inside the unit cover 61, there is an inner side plate connected to the side wall plate 55 of the hammer lifting motor unit 50. 62 and an outer side plate 63 parallel to the inner side plate 62 at a predetermined interval are attached. On the upper and lower sides of the inner side plate 62 and the outer side plate 63, inner side plate holes 62a and 62b and outer side plate holes 63a and 63b are formed in the horizontal direction in FIG. Further, a unit cover hole 61a is formed in the upper part of the surface of the unit cover 61 where the outer side plate 63 is attached, and a notch 61b is formed in the lower part. The unit cover hole 61a communicates with the outer side plate hole 63a, while the notch 61b communicates with the outer side plate hole 63b. Further, a handle 64 is attached to the outer side plate 63 via the notch 61b. The handle 64 is gripped by an operator, and the transmission unit 60 is attached to and detached from the hammer lifting motor unit 50. Is for.

  Also, bearing holders 65, 66 having ring-shaped bearing mechanisms 65a, 66a are attached to the inner side plate holes 62a, 62b, and the inner side plate holes 62a, 62b and the bearing mechanisms 65a, 66a communicate with each other. It is like that. Torx couplings 67, 68 having Torx-shaped inner engagement holes 67a, 68a are attached to the rear surfaces of the bearing holders 65, 66 so as to be rotatable integrally with the bearing mechanisms 65a, 66a. The torque coupling 67 is disposed above the inside of the unit cover 61, while the torque coupling 68 is disposed below the inside of the unit cover 61. Sprockets 69 and 70 are rotatably mounted integrally with the torque couplings 67 and 68 behind the torque couplings 67 and 68. The sprockets 69 and 70 have an annular shape as an example of an endless circulation member. The endless chain 71 is wound and meshed.

  Further, chain guides 71a and 71b are attached to the inner side plate 62 and the outer side plate, and these chain guides 71a and 71b prevent the endless chain 71 from bending and guide a predetermined moving path. Is. Further, the inner engagement hole 67a of the torque coupling 67 is configured to engage the tip of the shaft 84 of the hammer lifting chain unit 80, which will be described in detail later, while the inner engagement hole of the torque coupling 68 is engaged. The hole 68a is configured to engage with the output shaft 51a of the hammer lifting motor 51. With these configurations, the driving of the hammer lifting / lowering motor 51 is transmitted to the hammer lifting / lowering chain unit 80, which will be described in detail later.

  Sprocket shafts 72 and 73 having a convex cross section are attached to the rear surfaces of the torque couplings 67 and 68 so as to be rotatable integrally with the torque couplings 67 and 68. Is positioned to face the outer side plate 63. Furthermore, the tip ends of the sprocket shafts 72 and 73 have hexagonal outer engagement holes 72a and 73a, which are configured to be able to engage with a hexagon wrench (not shown) which is a rotating means. .

Bearings 74 and 75 are fitted in the outer side plate holes 63a and 63b of the transmission unit. The bearings 74 and 75 are inserted so that the tip ends of the sprocket shafts 72 and 73 can rotate together, and the outer engagement hole 73a of the lower sprocket shaft 73 is inserted into the hexagon wrench from the outside of the unit cover 61. Is configured to be engageable. That is, in the transmission unit 60 configured as described above, the operator causes the torque shaft 51a of the hammer raising motor 51 to engage with the inner engagement hole 68a of the coupling 68 disposed below the transmission unit 60. In this case, the hexagon wrench T is rotated in a state where the hexagon wrench is engaged with the outer engagement hole 73 a of the sprocket shaft 73. By this rotation, the inner engagement hole 68a of the torque coupling 68 rotates to a position where it can engage with the output shaft 51a of the hammer raising motor 51, and engages with the output shaft 51a. The torque coupling 67, the sprocket 69, and the sprocket shaft 72 are integrally configured to rotate on the same axis, and the torque coupling 68, the sprocket 70, and the sprocket shaft 73 are on the same axis. Is configured to rotate. Further, in the main driving shaft 76 and the driven shaft 77 described in the claims, the main driving shaft 76 is composed of the torque coupling 68, the sprocket 70 and the sprocket shaft 73, while the driven shaft 77 is the torque coupling. 67, a sprocket 69 and a sprocket shaft 72. The main driving shaft 76 and the driven shaft 77 are formed of a uniform member configured to be wound around the endless chain 71, and the output shaft 51 of the hammer elevating motor 51 and the above-described member are attached to one end of this member. The engagement holes 68a and 67a that engage with the shaft 84 of the hammer lifting / lowering chain unit 80 may be formed, while the outer engagement holes 73a and 72a may be formed at the other end of the member. Further, instead of the outer engagement holes 73a and 72a, a socket-like engagement portion may be configured, and the main driving shaft 76 and the driven shaft 77 may be rotated by a tool that can be engaged with the engagement portion. .

  The hammer raising / lowering chain unit 80 has a second support column 81 erected on the top plate 54 of the hammer lifting motor 51, and the bottom surface 81 a of the second support column 81 is a top plate of the hammer lifting motor unit 50. Guided by guide rails 56 and 57 attached to the upper surface of 54, it is placed on the upper surface of the top plate 54 of the hammer elevating motor unit 50. Further, the second support column 81 has a hollow central portion in the longitudinal direction, and has sprockets 82 and 83 above and below the hollow portion 81b, respectively. The sprocket 83 disposed on the upper side of the cavity 81b is rotatably supported by the second support column 81, while the lower sprocket 83 rotates on a shaft 84 attached to the lower side of the cavity 81b. Installed as possible. An annular endless chain 85 is wound around and meshed with these sprockets 82 and 83 as an example of an endless circulation moving member. One end of the shaft 84 has a Torx shape, and the one end is disposed so as to protrude from the inside of the hollow portion 81 toward the outside. The tip of the protruding shaft 84 is configured to engage with the inner engagement hole 67 a of the torque coupling 67 of the transmission unit 60. Thereby, the endless chain 85 is configured to be circulated and fed by the drive of the hammer lifting motor 51. A locking member 86 is integrally fixed to a predetermined position of the endless chain 85 so as to protrude in the both end directions of the endless chain 85.

  Release members 87 and 87 are attached to the second support column 81 so as to be positioned on an upward movement path of a claw 98 of a hammer 94, which will be described in detail later. These release members 87 and 87 are provided at a predetermined height with an interval through which the locking member 86 that moves in accordance with the circulation feeding operation of the endless chain 85 can pass. 1 and 2, chain unit handles 88, 88 are attached to the back side of the second support column 81. An operator holds the chain unit handles 88, 88, and the hammer lifting chain unit 80 is held. Is placed on the top surface of the top plate 54 of the hammer lifting motor unit 50.

  The hammer unit 90 is attached to the front of the second support column 81 on the table 31. The hammer unit 90 includes a hollow shaft-shaped rod cylinder 91 that is supported by being inserted through the opening 31a of the table 31 to the lower part of the apparatus. The shaft-shaped penetrating rod 2 is inserted into the rod cylinder 91 and guided. Has been. The rod cylinder 91 is provided to be slidable in the axial direction, and a knocking head 42 is attached to the upper portion of the rod cylinder 91. The knocking head 42 has a shape that integrally covers the upper end portion of the penetrating rod 2, prevents the penetrating rod 2 from being directly hit by the hammer 94 described later, and prevents the penetrating rod 2 from being damaged. Is.

Further, the hammer unit 90 has a pair of guide rails 93, 93 extending in parallel with the second support column 81 with the rod cylinder 91 interposed therebetween. On the guide rails 93, 93, a hammer 94 is guided so as to be movable up and down, located above the knocking head 92. The hammer 94 includes a frame body 95 that can be moved up and down along the guide rail 93, a lower block 96 that is an example of a first block that is detachably fixed to the frame body 95, and an upper portion of the lower block 96. An upper block 97 that is an example of a second block disposed on the upper block 97, a claw 98 that is rotatably disposed on the upper block 97, and a striking block (not shown) fixed to the lower surface of the lower block 96. The lower block 96 and the upper block 97 are provided with two buffer mechanisms 100 and 100. In the buffer mechanism 100 , when an impact force acts on the upper block, a compression spring (not shown) provided in the buffer mechanism is compressed, and the impact force is relieved.

As shown in FIGS. 1 to 3 , the hammer penetration test apparatus 1 having such a configuration is configured such that the hammer lifting motor unit 50, the transmission unit 60, the hammer lifting chain unit 80, and the hammer unit 90 can be separately provided. Has been. Therefore, when the impact penetrating test apparatus 1 is transported, these can be transported separately, so that it is not necessary for many workers to lift and transport the impact penetrating test apparatus 1. Further, when the thus separated hammer lifting chain unit 80 is placed on the top surface of the top plate 54 of the hammer lifting motor unit, the top plate 54 guides the bottom surface 81a of the hammer lifting chain unit 80. Since the rails 56 and 57 are attached, the hammer elevating chain unit 80 can be easily placed at an accurate position even in every assembly. Further, when the transmission unit 60 is attached to the hammer lifting motor unit 50, the hammer lifting motor 51 of the hammer lifting motor unit 50 is inserted into the inner engagement hole 68 a formed in the torque coupling 68 of the rotation mechanism 76 of the transmission unit 60. The output shaft 51 is engaged. At this time, a hexagon wrench (not shown) is engaged with the outer engagement hole 73a of the sprocket shaft 73 in the rotation mechanism 76 of the transmission unit 60, and the inner engagement hole 68a of the torque coupling 68 is simply rotated. Rotates. Therefore, the hammer elevating motor 51 of the hammer elevating motor unit 50 is temporarily driven, and the output shaft of the hammer elevating motor 51 is not set to a rotation angle at which 51a can be engaged with the inner engagement hole 68a of the torque coupling 68. The inner engagement hole 68 a of the torque coupling 68 can be engaged with the output shaft 51 a of the hammer lifting motor 51, and the transmission unit 60 can be easily attached to the hammer lifting motor 50.

It is a front side principal part expansion disassembled perspective view of the impact penetrating test apparatus which concerns on this invention, and is a figure which shows the attachment state of a hammer unit and a transmission unit. It is a front side principal part expansion disassembled perspective view of the impact penetrating test apparatus which concerns on this invention, and is a figure which shows the attachment state of a hammer raising / lowering chain unit. FIG. 3 is an enlarged exploded perspective view of a main part on the back side with a part cut out in FIG. 2. It is a front side perspective view of the impact penetration testing apparatus concerning the present invention. It is a back side perspective view of the impact penetration testing device concerning the present invention. It is a front side expansion perspective view which shows the structure of a transmission unit. It is a back side expansion perspective view which shows the structure of a transmission unit. Is an A-A line enlarged sectional view of FIG. FIG. 8 is an enlarged sectional view taken along line B-B in FIG. 7.

Explanation of symbols

1 Strike Penetration Test Device 10 Base Unit 11 First Strut
11a Chain member 12 Lifting table 16 Unit lifting motor 18 Stand 20 Strike unit 30 Elevator unit 31 Table 31a Opening 50 Hammer lifting motor unit 51 Hammer lifting motor 51a Output shaft 52, 53 Mounting plate 54 Top plate 55 Side wall plate 56, 57 Guide Rail 60 Transmission unit 61 Unit cover 61a Unit cover hole 61b Notch 62 Inner side plate 62a, 62b Inner side plate hole 63 Outer side plate 63a, 63b Outer side plate hole 64 Handle 65, 66 Bearing holder 65a, 66a Bearing mechanism 67 , 68 Torx couplings 67a, 68a Inner engagement holes 69, 70 Sprocket 71 Endless chains 71a, 71b Chain guides 72, 73 Sprocket shafts 72a, 73a Outside Engagement holes 74, 75 Bearing 76 Main shaft 77 Drive shaft 80 Hammer elevating chain unit 81 Second support column 81a Bottom surface 81b Hollow portion 82, 83 Sprocket 84 Shaft 85 Endless chain 86 Locking member 87 Release member 88 Chain unit handle 90 Hammer unit 91 Rod cylinder 92 Knocking head 93 Guide rail 94 Hammer 95 Frame body 96 Lower block 97 Upper block 98 Claw 100 Buffer mechanism

Claims (2)

An elevator unit configured by unitizing a first sprocket and a second sprocket arranged above and below the column, and a first endless chain that wraps around the sprocket and circulates;
A hammer that engages with the first endless chain of the elevator unit and is lifted and dropped along with the circulating movement of the first endless chain;
A motor for applying rotational drive to the first sprocket and the second sprocket of the elevator unit;
A third sprocket that engages with the drive shaft of the motor and can rotate integrally; a fourth sprocket that engages with the rotation shaft of the first sprocket or the second sprocket and rotates integrally; The third sprocket and the second endless chain wound around the fourth sprocket are unitized and configured to be detachable from the elevator unit and the motor, and the motor is driven to rotate by the first sprocket. A transmission unit for transmitting to the first sprocket and the second sprocket;
A striking penetration test apparatus comprising: The motor, a table on which the motor is loaded, and a plate surrounding the motor are unitized to form a motor unit, and the elevator unit is fitted along a guide rail provided on the upper surface of the motor unit. The impact penetration test device according to claim 1, wherein the impact penetration test device is provided.

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