Gate roller axle arrangement to prevent end cap plate drop

Abstract

The application discloses a gate roller shaft device capable of preventing end cover plate from falling, which comprises a roller shaft, a shaft stop plate and an end cover plate, the roller shaft is arranged in a reserved shaft hole on a gate, the roller shaft comprises a solid shaft, a shaft stop groove and a T-shaped groove, the end cover plate comprises a connecting cover plate and a T-shaped body, the shaft stop groove and the T-shaped groove are respectively arranged at two ends of the solid shaft, the shaft stop plate is clamped in the shaft stop groove, and the shaft stop plate is fixed on the gate. The shaft stop plate is clamped in the shaft stop groove of the roller shaft, the shaft stop plate is fixed on the gate by bolts, the rotation and axial movement of the roller shaft are prevented, the T-shaped groove of the roller shaft is arranged in an inclined mode, the inclination angle is smaller than a self-locking angle, the stress on the fixing bolts of the end cover plate is reduced or avoided, the fixing bolts of the end cover plate are not easy to loosen and fall off, the roller is prevented from moving out of the roller shaft, the gate is prevented from being blocked during lifting, and the normal operation of the water gate is further ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic engineering, and particularly relates to a gate roller shaft device capable of preventing end cover plates from falling off. BACKGROUND

[0002] In the prior art, the end cover plate of the gate roller shaft is fixed on the end of the roller shaft by bolts, and is used for limiting the displacement of the roller along the axial direction. In actual operation, the fixing screws of the end cover plate are prone to loosening or even falling off due to the axial extrusion of the roller and the frictional torsion between the roller and the end cover plate, and the roller is moved out of the roller shaft, which causes the blockage of the gate during lifting and directly affects the normal operation of the water gate.

[0003] The skilled in the art are committed to solving the above technical defects. SUMMARY

[0004] In view of the above defects in the prior art, the technical purpose of the present application is to solve the problems mentioned in the background art.

[0005] To achieve the above technical purpose, the present application provides a gate roller shaft device capable of preventing end cover plates from falling off, which comprises a roller shaft, a shaft stop plate, an end cover plate, a gate roller, a gate and a gate slot, the roller shaft is arranged in a reserved shaft hole on the gate;

[0006] The roller shaft comprises a solid shaft, a shaft stop groove and a T-shaped groove;

[0007] The end cover plate comprises a connecting cover plate and a T-shaped block;

[0008] The shaft stop groove and the T-shaped groove are respectively arranged at the two ends of the solid shaft, the shaft stop plate is clamped in the shaft stop groove, the shaft stop plate is fixedly arranged on the gate, the T-shaped block is arranged on one side of the connecting cover plate, the T-shaped block is clamped in the T-shaped groove, and the connecting cover plate is fixedly arranged on the solid shaft.

[0009] Preferably, the T-shaped groove is arranged obliquely, and the inclination angle of the T-shaped groove is smaller than the self-locking angle of the roller shaft.

[0010] Preferably, the shaft stop plate is fixedly connected with the gate by bolts.

[0011] Preferably, the connecting cover plate is fixedly connected with the solid shaft by uniformly arranged bolts.

[0012] Preferably, one side of the connecting cover plate is a plane, and the other side is an arc surface, and the T-shaped block is arranged on one side of the plane.

[0013] Preferably, the T-shaped block and the connecting cover plate are in an integrated structure.

[0014] Preferably, the T-shaped slot and the T-shaped block are both longer than the gap between the gate roller and the gate slot.

[0015] Advantages of the present application:

[0016] The shaft stop plate is clamped in the shaft stop slot of the roller shaft, and the shaft stop plate is fixed on the gate by bolts, so that the rotation and axial movement of the roller shaft are prevented; the T-shaped slot of the roller shaft is arranged at an inclination, and the inclination angle is smaller than the self-locking angle, so that the stress on the fixing bolts of the shaft end cover plate is reduced or avoided; the fixing bolts of the shaft end cover plate are not easy to loosen and fall off, the roller is prevented from moving out of the roller shaft to cause the gate to be blocked during lifting, and the normal operation of the water gate is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the present application;

[0018] Figure 2 is a structural schematic diagram of the roller shaft, the shaft stop plate and the shaft end cover plate in the present application;

[0019] Figure 3a is a structural schematic diagram of the roller shaft in the present application;

[0020] Figure 3b is Figure 3a a sectional structural schematic diagram at A-A in the present application;

[0021] Figure 3c is Figure 3a a sectional structural schematic diagram at B-B in the present application;

[0022] Figure 4a is a three-dimensional structural schematic diagram of the shaft end cover plate in the present application;

[0023] Figure 4b is a planar structural schematic diagram of the shaft end cover plate in the present application;

[0024] Figure 4c is Figure 4b a sectional structural schematic diagram at C-C in the present application;

[0025] Figure 4d is Figure 4b a sectional structural schematic diagram at D-D in the present application;

[0026] Figure 5a is a force analysis schematic diagram of the present application;

[0027] Figure 5b is a force analysis schematic diagram of the present application;

[0028] Figure 5c is a force analysis schematic diagram of the present application;

[0029] Figure 6aThis is a schematic diagram of the installation of the present invention;

[0030] Figure 6b This is a schematic diagram of the installation of the present invention;

[0031] Figure 7a This is a schematic diagram of the installation of the present invention;

[0032] Figure 7b This is a schematic diagram of the installation of the present invention;

[0033] Figure 7c This is a schematic diagram of the installation of the present invention.

[0034] In the diagram: 1 Roller shaft, 11 Solid shaft, 12 Shaft stop groove, 13 T-shaped groove, 2 Shaft stop plate, 3 Shaft end cover plate, 31 Connecting cover plate, 32 T-shaped block, 4 Gate roller, 5 Gate, 6 Gate groove, 61 Gate groove main rail, 62 Gate groove side rail. Detailed Implementation

[0035] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention.

[0036] Example: Figures 1-7c As shown, a gate roller shaft device for preventing end cover plate from falling off includes a roller shaft 1, a stop plate 2, and a shaft end cover 3. The roller shaft 1 is fitted into a pre-reserved shaft hole in the gate 5; the stop plate 2 is clamped in the stop groove 12 at one end of the roller shaft 1 and fixed to the gate 5 with bolts; the shaft end cover 3 is bolted to the other end of the roller shaft 1, and the T-shaped block 32 of the shaft end cover 3 is clamped in the T-shaped groove 13 at the other end of the roller shaft 1.

[0037] Specifically, a shaft-stopping groove 12 is opened on both sides of one end of the solid shaft 11, and two rectangular shaft-stopping plates 2 are correspondingly snapped in. Each shaft-stopping plate 2 has a hole at both ends for bolts to be inserted and fixed to the gate 5.

[0038] Specifically, the connecting cover plate 31 has a flat surface on one side and an arc-shaped surface on the other side, with four screw holes evenly distributed around its perimeter. The T-shaped block 32 is set on one side of the flat surface of the connecting cover plate 31, and the T-shaped block 32 is machined into one piece with the connecting cover plate 31.

[0039] Specifically, the T-groove 13 is set to be inclined upward at 5°, and the length of the T-groove 13 of the roller shaft 1 and the T-block 32 of the shaft end cover plate 3 is much greater than the gap between the gate roller 4 and the gate groove 6.

[0040] The working principle of this invention is as follows:

[0041] 1. The principle of non-displacement of the roller shaft 1: the shaft stop plate 2 is clamped in the shaft stop groove 12 at one end of the roller shaft 1 and is fixed on the gate 5 by bolts, thereby limiting the rotation and axial movement of the roller shaft 1.

[0042] 2. The principle of non-falling of the shaft end cover plate 3:

[0043] As shown in Figures 5a-5c , according to the three directions of force that the shaft end cover plate 3 may be subjected to in three-dimensional space, the specific analysis is as follows:

[0044] (1) The shaft end cover plate 3 is subjected to X-direction force (forward or backward): when subjected to X-direction forward force, it is in an unfavorable working condition, and the force analysis is carried out under this condition. The sliding force along the inclined surface is F2-f, the T-shaped groove 13 is inclined at an angle of 5°, F2 is the component force of F, and because of the component force F1, the friction force f is generated, so the sliding force along the inclined surface of the T-shaped groove 13 can be reduced. The gate roller 4 will swing back and forth along the X-direction between the main rails 62 of the gate groove, and when the shaft end cover plate 3 collides with the side rails 62 of the gate groove, the shaft end cover plate 3 is subjected to X-direction force. The gap between the gate roller 4 and the gate groove 6 is 10-20 mm, and the length of the T-shaped groove 13 of the roller shaft 1 and the T-shaped block 32 of the shaft end cover plate 3 is much larger than 20 mm. When the gate roller 4 swings back and forth along the X-direction in the gate groove 6, it will not cause the T-shaped block 32 of the shaft end cover plate 3 to come out of the T-shaped groove 13 of the roller shaft 1, i.e. the shaft end cover plate 3 will not fall off.

[0045] (2) The shaft end cover plate 3 is subjected to Y-direction force (up or down): when subjected to Y-direction upward force, it is in an unfavorable working condition, and the force analysis is carried out under this condition. Because the T-shaped groove 13 is inclined at an angle of 5°, which is smaller than the friction self-locking angle, the component force F2 along the inclined surface is F*sin5°, F2<f friction force (f=u*F1=u*F*cos5°), so the T-shaped block 32 of the shaft end cover plate 3 will not slide along the T-shaped groove 13 of the roller shaft 1.

[0046] (3) The shaft end cover plate 3 is subjected to Z-direction force (left or right): when subjected to Z-direction right force, it is in an unfavorable working condition, and at this time the T-shaped block 32 hooks the T-shaped groove 13 and will not fall off, and the tension of the bolts can be reduced.

[0047] In other embodiments:

[0048] As shown in Figures 6a-7cAs shown, a certain water gate in Shanghai adopts a straight plane steel gate, and four gate rollers 4 are arranged on both sides of the gate 5. The diameter of the gate roller 4 is 800 mm, and the weight is about 430 Kg. The supporting roller shaft has a diameter of 220 mm. The original gate lower roller shaft end cover plate fixing bolt is often loose, even falls off, and the bolt of the gate lower roller shaft end cover plate needs to be tightened every half month on average. In this case, the right side lower solid shaft 11 of the gate 5 and the shaft end cover plate 3 remain unchanged, and the left side lower solid shaft 11 of the gate 5 adopts a T-shaped groove 13 at one end, and the flat side of the shaft end cover plate 3 adopts a T-shaped block 32. The specific assembly method is as follows: the solid shaft 1 is inserted into the reserved hole of the gate 5, the shaft plate 2 is clamped in the shaft groove 12, and the shaft plate 2 is fixed on the gate 5 by the bolt, the roller 4 is sleeved on the other end of the solid shaft 1, the flat side of the shaft end cover plate 3 is opposite to the end face of the solid shaft 11, the T-shaped block 32 of the shaft end cover plate 3 is inserted into the recess groove at the upper right corner of the T-shaped groove 13 of the solid shaft 11, and then the T-shaped block 32 is pushed into the inverted T-shaped groove at the lower left corner of the T-shaped groove 13, and finally the connecting bolt of the end cover plate 3 and the solid shaft 11 is installed.

[0049] After four months of continuous observation and comparison, the bolt of the shaft end cover plate 3 of the right side lower roller shaft 1 of the gate 5 is still often loose, and needs to be tightened every half month; and the gate roller shaft device adopting the anti-end cover plate falling device does not have the above-mentioned situation, and remains intact, and the actual measurement verifies the effectiveness.

[0050] The above describes the preferred embodiments of the present application in detail. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the present application should be within the protection scope determined by the claims.

Claims

1. A gate roller shaft device for preventing end cover plates from falling off, characterized in that: It includes a roller shaft (1), a stop plate (2), a shaft end cover plate (3), a gate roller (4), a gate (5), and a gate slot (6), wherein the roller shaft (1) passes through a reserved shaft hole on the gate (5); The roller shaft (1) includes a solid shaft (11), a shaft stop groove (12), and a T-groove (13). The shaft end cover (3) includes a connecting cover (31) and a T-shaped block (32); The anti-shaft groove (12) and the T-shaped groove (13) are respectively opened at both ends of the solid shaft (11). The anti-shaft plate (2) is snapped into the anti-shaft groove (12). The anti-shaft plate (2) is fixedly installed with the gate (5). The T-shaped block (32) is set on one side of the connecting cover plate (31). The T-shaped block (32) is snapped into the T-shaped groove (13). The connecting cover plate (31) is fixedly installed with the solid shaft (11). The T-groove (13) is inclined, and the inclination angle of the T-groove (13) is less than the self-locking angle of the roller shaft (1); The lengths of the T-groove (13) and the T-block (32) are both greater than the gap between the gate roller (4) and the gate groove (6); The T-shaped block (32) and the connecting cover plate (31) are an integral structure.

2. The gate roller shaft device for preventing end cover plate from falling off according to claim 1, characterized in that: The stop plate (2) is fixedly connected to the gate (5) by bolts.

3. The gate roller shaft device for preventing end cover plate from falling off according to claim 1, characterized in that: The connecting cover plate (31) is fixedly connected to the solid shaft (11) by evenly arranged bolts.

4. The gate roller shaft device for preventing end cover plate from falling off according to claim 3, characterized in that: One side of the connecting cover plate (31) is a flat surface, and the other side is an arc-shaped surface. The T-shaped block (32) is disposed on one side of the flat surface.

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