JP4545021B2 - Guide device pin mounting structure - Google Patents

Description

  The present invention relates to a pin mounting structure capable of fixing a roller pin or the like in a guide device.

As a roller guide for guiding a steel material to the rolling roll side of a rolling stand, for example, a conjugated variable control induction guide device described in Japanese Patent Application Laid-Open No. 58-116921 has been proposed. In this guidance and guide device, the guide roller is mounted and held at the tip of the roller holder by a roller pin, and the roller holder holds the guide roller and pivots so that it can be swayed by the fulcrum pin on both sides of the guide box. It is supported. The upper end of the roller pin is attached to the roller holder by a key plate and a key plate set bolt, and the upper end of the fulcrum pin is attached to the guide box by a fulcrum pin key plate and a hexagonal hexagonal bolt.
Japanese Patent Laid-Open No. 58-116921 JP 2001-162314 A

The above-described conventional roller pin mounting structure is a structure in which the lower end side of this roller pin is inserted into a support hole opened in the roller holder, and the upper end side is fixed by a key plate, and the upper end side is securely attached. The attachment state is relatively free on the lower end side of the one fixed to. For this reason, the wear of the inner peripheral surface of the support hole supporting the free side of the roller pin is increased, and with this wear, the roller pin mounting state has become loose over time. As a result, the conjugation interval of the guide roller that has been adjusted in advance has become distorted, resulting in a decrease in conjugation performance.
As for the fulcrum pin, the roller holder opens and closes the tip side with the fulcrum pin as the center, but since the mounting structure is the same as that of the roller pin, the wear on the inner peripheral surface of the support hole over time. Along with this, the space between the guide roller surfaces was widened, and the conjugation performance was lowered.
An object of the present invention is to prevent the conjugation performance from being deteriorated over time with a simple configuration.

A feature of the present invention is that first and second mounting surfaces that are formed at both ends of a pin provided on the holding body and are inclined, and a first fixing that can be pressed against the first mounting surface. And a second fixing body that can be pressed against the second mounting surface, and the first fixing body is a fixing plate provided with a pressing surface that can be joined to the first mounting surface. There is.
The holding body is either a roller holder or a guide box. For this reason, if the holding body is a roller holder, the pin is a roller pin supporting a guide roller. If the holding body is a guide box, the pin is a fulcrum pin that supports the roller holder.
In order to more reliably fix the first fixing body to the first mounting surface, the pressing surface of the first fixing body is an inclined surface.
As the second fixing body, a fixing plate having a pressing surface that can be joined to the second mounting surface is used, and a shaft or a sphere that can be joined to the second mounting surface is used.

  According to the present invention, since the both ends of the pin are attached to the holding body through the first and second attachment surfaces that are inclined and the first and second fixing bodies, the end of the pin becomes loose due to wear over time. Is less likely to occur, and degradation of conjugation performance can be suppressed with a simple configuration.

  In the guide device G shown in FIGS. 1 to 3, a pair of roller holders 2 are provided in the guide box 1, and the guide roller 3 is supported rotatably around the roller pin 4 at the tip of both roller holders. Has been. Each roller holder 2 is rotatably supported by the guide box 1 around a fulcrum pin 5. An entry guide 6 is inserted into the guide box 1 from the rear (right side in FIG. 2), and this entry guide is fixed to the guide box by bolts 7a and 7b.

First, the attachment structure of the roller pin 4 will be described with reference to FIGS.
Each roller pin 4 is inserted into a support hole 21 (FIG. 2) penetrating in the vertical direction at the tip of each roller holder 2. The head at the upper end of each roller pin 4 is exposed upward from each roller holder 2. The head of each roller pin 4 is formed with a first mounting surface 41 that is notched on one side and is inclined downwardly to the right in FIG. The upper end side of each roller pin 4 is fixed by a first fixing plate 8 and a bolt 9 which are first fixing bodies via a first mounting surface 41. The first fixing plate 8 is provided with an inclined pressing surface 81, and the pressing surface can be joined to the first mounting surface 41 in a pressed state. The bolt 9 is a means for fixing the first fixing plate 8 to the roller holder 2. The first fixing plate 8 is lowered while the pressing surface 81 is joined to the first mounting surface 41 of the roller pin 4 by the tightening operation of the bolt 9, and the mounting state of the upper end portion of the roller pin 4 is gradually fixed.
At the lower end of each roller pin 4, a second mounting surface 42 is formed which is notched on one side and is inclined upward in the right direction in FIG. 1. The lower end side of each roller pin 4 is fixed by a second fixing plate 10 and a bolt 11 which are second fixing bodies via a second mounting surface 42. The second fixing plate 10 is provided with an inclined pressing surface 101, and the pressing surface can be joined to the second mounting surface 42 in a pressed state. The bolt 11 is a means for fixing the second fixing plate 10 to the roller holder 2. The second fixing plate 10 is raised while the pressing surface 101 is joined to the second mounting surface 42 of the roller pin 4 by the tightening operation of the bolt 11, and the mounting state of the lower end portion of the roller pin 4 is gradually fixed.

The operation of attaching each roller pin 4 will be described with reference to FIG.
First, the guide roller 3 is inserted into the recess at the tip of the roller holder 2, and then the roller pin 4 is dropped from the support hole 21 on the upper side of FIG. 2 and inserted through the guide roller into the lower support hole. . Then, the pressing surface 101 of the second fixing plate 10 is applied to the second mounting surface 42 of the roller pin 4, and the second fixing plate 10 is fixed with the bolt 11. Thereafter, the pressing surface 81 of the first fixing plate 8 is brought into contact with the first mounting surface 41 of the roller pin 4, and the first fixing plate is fixed with the bolt 9. In the process of attaching the roller pin 4, the positions of the first and second fixing plates 8 and 10 are adjusted while adjusting the tightening amounts of the upper and lower bolts 9 and 11.
As a result, as shown in FIGS. 1 and 2, the roller pin 4 is attached to the roller holder 2 by the first and second fixing plates 8, 10 with the upper and lower ends thereof being in close contact with the inner peripheral surface of the support hole 21. Mounted in a fixed state.
In the example of FIG. 1, the inclined pressing surfaces 81 and 101 of the first and second fixing plates 8 and 10 are the same as the inclined first and second mounting surfaces 41 and 42 of the roller pin 4. By pressing to the left side of the figure, the roller pin is pressed to one side (left side of the figure) of the inner peripheral surface of the support hole 21. As the roller pin 4 is pressed to one side in this way, there is no gap between both end portions and the support hole, and no mounting play occurs. Moreover, since the 1st and 2nd fixing plates 8 and 10 also serve as the rotation stopper of the roller pin 4, the hole wear by rotation of a roller pin can be suppressed.

Next, the mounting structure of the fulcrum pin 5 will be described with reference to FIGS. 1 to 3 and FIG.
Each fulcrum pin 5 is inserted into a support hole 15 (FIG. 1) penetrating the roller holder and the guide box 1 in a vertical direction at a position substantially in the middle of each roller holder 2, and both upper and lower ends reach the guide box. Yes.
The attachment structure of the upper end portion of each fulcrum pin 5 is the same as that of the upper end portion of the roller pin 4 described above. That is, each fulcrum pin 5 has a first mounting surface 51 formed at the upper end thereof. The first mounting surface 51 is inclined downwardly to the right in FIG. A pressing surface 121 of a first fixing plate 12 that is a first fixing body for fixing the upper side of each fulcrum pin 5 is joined to the first mounting surface 51 in a pressing state. The first fixing plate 12 is fixed on the guide box 1 by bolts 13. The first fixing plate 12 fixes the upper side of each fulcrum pin 5 through the pressing surface 121 and the first mounting surface 51 by the tightening operation of the bolt 13.
The attachment structure of the lower end portion of each fulcrum pin 5 will be described.
Each fulcrum pin 5 has a second attachment surface 52 formed at its lower end. The second mounting surface 52 is inclined so as to rise rightward in FIG. An outer peripheral surface of the fixed shaft 14 that is a second fixed body for fixing the lower side of each fulcrum pin 5 is joined to the second mounting surface 52 in a pressed state. As shown in FIG. 5, the fixed shaft 14 has a main body portion 141 traversing the inside of the support hole 15, and a screw portion 142 at the tip thereof is screwed into the guide box 1. The fixed shaft 14 supports the lower end of each fulcrum pin 5 through the second mounting surface 52 on the upper surface of the main body 141 (FIGS. 1 and 5).

The mounting operation of each fulcrum pin 5 will be described with reference to FIGS.
First, as shown in FIG. 5, the fixed shaft 14 is screwed from the side surface of the guide box 1 and fixed at a position crossing the support hole 15. Then, by dropping each fulcrum pin 5 into the support hole 15 from above, the lower end portion of each fulcrum pin is supported on the fixed shaft 14. The first fixing plate is fastened and fixed by the bolt 13 while the pressing surface 121 of the first fixing plate 12 is applied to the first mounting surface 51 of the head of each fulcrum pin 5. In the process of tightening the first fixing plate 12, the pressing surface 121 gradually presses the first mounting surface 51 of each fulcrum pin 5, and eventually the fulcrum pins are fixed to the guide box 1 at the same time as the first fixing plate 12 is fixed. It is attached.
The positions of the first fixed plate 12 and the fixed shaft are adjusted while adjusting the tightening amount.
In the example of FIG. 1, the pressing surface 121 of the first fixed plate 12 and the outer peripheral surface of the main body 141 of the fixed shaft 14 are the same with respect to the first and second mounting surfaces 51 and 52 where the fulcrum pin 5 is inclined. By pressing to the left side of the figure, the fulcrum pin is pressed to one side (left side of the figure) of the inner peripheral surface of the support hole 15. By pressing the fulcrum pin 5 to one side in this way, there is no gap between the both end portions and the support hole, and no mounting play occurs. Further, since the first fixed plate 12 and the fixed shaft 14 also serve as a detent for the fulcrum pin 5, hole wear due to rotation of the fulcrum pin can be suppressed.

  In the above-described guide device G, the rolled material is guided to the left side in FIG. At the time of conjugation, the load of the rolling material is applied to the roller pin 4 and the fulcrum pin 5 respectively, but both ends of the roller pin and the fulcrum pin are attached to the roller holder 2 and the guide box 1 in the first fixed bodies 8 and 12 and the second fixed body 10. , 14. For this reason, the play by the abrasion of the attachment part of the roller pin 4 and the fulcrum pin 5 can be suppressed.

  In the second fixed body, instead of the fixed shaft 14, for example, a sphere 16 as shown in FIGS. 6 and 7 may be used. The spherical body 16 can be joined to the second mounting surface 52 of the fulcrum pin 5 in a pressed state. The spherical body 16 is held in a storage recess 17 provided in the guide box 1. The lower end portion of the support hole 15 a into which the fulcrum pin 5 is inserted is not penetrated to the lower surface of the guide box 1.

Since the guide device GA shown in FIGS. 8 and 9 has substantially the same configuration as the guide device G, only its features (components different from the guide device G) will be described.
The features of the guide device GA are the arrangement direction of each roller pin 4A and each fulcrum pin 5A and the attachment structure of one end portion (right end portion in FIG. 8) of each fulcrum pin 5A. That is, each roller pin 4A is arranged in the roller holder 2A, and each fulcrum pin 5A is arranged in the guide box 1A in the horizontal direction. And the 1st and 2nd attachment surface 51A, 52A is formed in the both ends of each fulcrum pin 5A. One end of each fulcrum pin 5A is fixed by a second fixing plate 18 which is a second fixing body via a second mounting surface 52A. The second fixing plate 18 is attached to the guide box 1A by a bolt 19.
The second mounting surface 52A, the second fixing plate 18 and the bolt 19 constituting the means for attaching one end of the fulcrum pin 5A to the guide box 1A constitute the means for attaching the other end of the fulcrum pin 5A to the guide box. Corresponding to the first mounting surface 51A, the first fixing plate 12A, and the bolt 13A. In FIG. 9, the pressing surface 121A of the first fixing plate 12A can press the first mounting surface 51A of the fulcrum pin 5A, and the pressing surface 181 of the second fixing plate 18 can press the second mounting surface 52A.
In FIG. 8, the guide roller 3A, the roller pin 4A, the entry guide 6A, the bolt 7Aa, the second fixing plate 10A, the bolt 11A, and the second mounting surface 42A in the guide device GA are the guide roller 3 and the roller pin 4 in the guide device G. , Corresponding to the entry guide 6, the bolt 7 a, the second fixing plate 10, the bolt 11, and the second mounting surface 42.

  As the second fixed body for fixing the end portions of the roller pins 4 and 4A, a fixed shaft or a sphere as shown in FIGS. 1 and 6 may be used.

It is an enlarged front view showing the present invention. It is a partially cutaway front view which shows the guide apparatus used for this invention. It is a top view which shows the guide apparatus used for this invention. It is an enlarged bottom view which shows the attachment state by the side of the lower end part of the roller pin in this invention. It is an enlarged side view which shows the attachment state by the side of the lower end part of the fulcrum pin in this invention. It is an enlarged side view which shows the principal part of other embodiment of the attachment structure of the fulcrum pin in this invention. It is the VII-VII sectional view taken on the line of FIG. It is a front view which shows other embodiment of the guide apparatus used for this invention. It is the IX-IX line expanded sectional view of FIG.

Explanation of symbols

1 Guide Box 2 Roller Holder 21 Support Hole 3, 3A Guide Roller 4, 4A Roller Pin (Pin)
41 First mounting surface 42, 42A Second mounting surface 5, 5A Support pin 51, 51A First mounting surface 52, 52A Second mounting surface 8 First fixing plate (first fixing body)
81 Press surface 9 Bolt 10, 10A Second fixing plate (second fixing body)
101 Press surface 11, 11A Bolt 12, 12A First fixing plate (first fixing body)
121 Press surface 13 Bolt 14 Fixed shaft (second fixed body)
141 Body 15, 15 a Support hole 16 Sphere (second fixed body)
17 Storage recess 18 Second fixing plate (second fixing body)
181 Pressing surface 19 Bolt G, GA Guide device

Claims (7)

First and second mounting surfaces that are formed at both ends of a pin provided on the holding body and are inclined;
A first fixed body that can be pressed against the first mounting surface and a second fixed body that can be pressed against the second mounting surface;
The first fixing body is a fixing plate provided with a pressing surface that can be joined to the first mounting surface. Pin mounting structure for a guide device.   2. The pin mounting structure for a guide device according to claim 1, wherein the pressing surface of the first fixed body is inclined.   3. The pin mounting structure for a guide device according to claim 1, wherein the second fixing body is a fixing plate provided with a pressing surface that can be joined to the second mounting surface.   3. The pin mounting structure for a guide device according to claim 1, wherein the second fixed body is a shaft that can be joined to the second mounting surface.   3. The pin mounting structure for a guide device according to claim 1, wherein the second fixed body is a sphere that can be joined to the second mounting surface.   6. The pin mounting structure for a guide device according to claim 1, wherein the holding body is a roller holder, and the pin is a roller pin supporting a guide roller.   6. The pin mounting structure for a guide device according to claim 1, wherein the holding body is a guide box, and the pin is a fulcrum pin supporting the roller holder.

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