Counter-acting force arm for assembling and screwing dumper thrust rod

Abstract

The utility model discloses a counter-acting force arm for assembling and tightening a dumper thrust rod, which comprises a counter-force plate provided with a counter-force sleeve; the connecting plate is rotationally connected with the counter-force plate through a mounting pin shaft, a pluggable pin shaft is further mounted between the connecting plate and the counter-force plate, and the pluggable pin shaft is used for locking after the counter-force plate rotates in place along the mounting pin shaft; the mounting plate is mounted at one end of the connecting plate, and the mounting plate is used for mounting a tightening gun. According to the counter-acting force arm for assembling and tightening the thrust rod of the dumper, the reliable product quality is ensured, and the noise is reduced; meanwhile, the use requirement of a product with a double-bolt fastening structure can be met, the distance between the counter-force sleeves can be adjusted to be matched with the center distance between the two bolts ranging from 151 mm to 168 mm, and the state of the counter-force arm can be rapidly changed by inserting and pulling out the pin shaft.

Description

Technical Field

[0001] The utility model relates to a reaction arm for assembly and tightening of a thrust rod of a dump truck, belonging to the technical field of dump trucks. Background Art

[0002] During the assembly process of a dump truck, it is necessary to perform torque setting operations on the bolts and nuts of the key component thrust rod. In the current assembly process, an electric tightening gun is equipped, but there is no suitable anti-torsion point on the workpiece, and the standard reaction arm cannot effectively play an anti-torsion role. During the tightening process, the workpiece often slips off, or the tightening fails and gets stuck halfway, making it impossible to relieve the force. It is very difficult to remove the reaction arm and the tightening gun after tightening, etc. These problems cause assembly damage to the workpiece itself, affect product quality, and the entire process is unsafe, inefficient and unreliable. Summary of the Invention

[0003] Aiming at the problems existing in the above-mentioned prior art, the utility model provides a reaction arm for assembly and tightening of a thrust rod of a dump truck, which can adapt to an electric tightening gun, improve production efficiency, ensure torque output, reduce noise, and reduce the labor intensity of workers.

[0004] In order to achieve the above purpose, a reaction arm for assembly and tightening of a thrust rod of a dump truck adopted by the utility model includes:

[0005] A reaction plate, on which a reaction sleeve is installed;

[0006] A connecting plate, which is rotatably connected to the reaction plate through a mounting pin shaft. A plug-in pin shaft is also installed between the connecting plate and the reaction plate, and the plug-in pin shaft is used for locking after the reaction plate rotates in place along the mounting pin shaft;

[0007] A mounting plate, which is installed at one end of the connecting plate, and the mounting plate is used for installing a tightening gun.

[0008] In some embodiments, the reaction plate is in a T shape, and two reaction sleeves are installed at opposite ends of the reaction plate.

[0009] In some embodiments, an adjustment hole for installing the reaction sleeve is formed on the reaction plate, and the adjustment hole is an oblong hole.

[0010] In some embodiments, the reaction sleeve is fixed on the reaction plate through a reaction sleeve locking nut.

[0011] In some embodiments, a U-shaped handrail is installed on the reaction plate.

[0012] In some embodiments, a pin shaft hole for installing the mounting pin shaft is formed in the middle of the connecting plate, and a first connection hole and a second connection hole are symmetrically arranged on both sides of the pin shaft hole. The plug-in pin shaft is connected to the reaction plate through the first connection hole or the second connection hole.

[0013] In some embodiments, mounting holes for mounting a tightening gun are provided on the mounting plate, and the tightening sleeve of the tightening gun is mounted in the mounting hole and fixed by a locking nut of the tightening gun.

[0014] In some embodiments, an arc-shaped groove matching the shape of the tightening sleeve is formed at one end of the connecting plate close to the mounting hole.

[0015] In some embodiments, the mounting plate is fixedly connected to the connecting plate by bolts.

[0016] Compared with the prior art, the reaction force arm for assembling and tightening the thrust rod of a dump truck of the present utility model ensures reliable product quality and reduces noise; at the same time, it can meet the use requirements of products with a double-bolt fastening structure, and the distance between the reaction force sleeves can be adjusted to adapt to the center distance of the two bolts of 151 mm - 168 mm. By inserting and pulling out the pin shaft, the state of the reaction force arm can be quickly changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a top view of the present utility model;

[0020] Figure 3 is a bottom view of the present utility model;

[0021] Figure 4 is a three-dimensional structural diagram of the use state of the present utility model in state A (the reaction force plate is connected to the first connection hole);

[0022] Figure 5 is a front view of the use structure of the present utility model in state A;

[0023] Figure 6 is a schematic diagram of the use state of the present utility model in state A;

[0024] Figure 7 is a three-dimensional structural diagram of the use state of the present utility model in state B (the reaction force plate is connected to the second connection hole);

[0025] Figure 8 is a front view of the use structure of the present utility model in state B;

[0026] Figure 9 Schematic diagram of the usage state of State B of the present utility model;

[0027] In the figure: 1. Reaction plate, 1-1. Adjusting hole, 2. Handrail, 3. First reaction sleeve, 4. Reaction sleeve locking nut, 5. Connecting plate, 5-1. First connecting hole, 5-2. Second connecting hole, 5-3. Arc-shaped groove, 6. Plug and pull pin shaft, 7. Mounting pin shaft, 8. Mounting plate, 8-1. Mounting hole, 9. Second reaction sleeve, 10. Tightening gun, 11. Tightening sleeve, 12. Tightening gun locking nut, 13. First bolt, 14. Second bolt. Specific embodiments

[0028] To make the purpose, technical solutions and advantages of the present utility model clearer, the technical solutions of this application will be described in detail below through the accompanying drawings and specific embodiments. It should be understood that the specific features in the embodiments of this application and the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. Without conflict, the technical features in the embodiments of this application and the embodiments can be combined with each other.

[0029] As Figures 1-9 shown, a reaction force arm for assembling and tightening the thrust rod of a dump truck includes a reaction plate 1, a connecting plate 5 and a mounting plate 8;

[0030] A reaction sleeve is installed on the reaction plate 1. The reaction plate 1 serves as an anti-torsion main body and plays a role in fixing the reaction sleeve;

[0031] The connecting plate 5 is rotatably connected to the reaction plate 1 through a mounting pin shaft 7. A plug and pull pin shaft 6 is also installed between the connecting plate 5 and the reaction plate 1. The plug and pull pin shaft 6 is used to lock the reaction plate 1 after it rotates to different positions along the mounting pin shaft 7;

[0032] The mounting plate 8 is installed at one end of the connecting plate 5, and the mounting plate 8 is used to install the tightening gun 10.

[0033] In some embodiments, as Figure 1 、 Figure 2 and Figure 3 shown, the reaction plate 1 is in a T shape, and two reaction sleeves are installed at opposite ends of the reaction plate 1, including a first reaction sleeve 3 and a second reaction sleeve 9, and the reaction sleeves play a role in limiting and anti-torsion.

[0034] In some embodiments, as Figure 1 、 Figure 2 and Figure 3As shown, an adjustment hole 1-1 for installing a reaction sleeve is formed on the reaction plate 1. The adjustment hole 1-1 is an oblong hole, which can adjust the distance between the first reaction sleeve 3 and the second reaction sleeve 9 to adapt to the tightening requirement with the center distance between two bolts being 151 mm - 168 mm.

[0035] In some embodiments, as Figure 1 shown, the reaction sleeve is fixed on the reaction plate 1 through a reaction sleeve lock nut 4, which is convenient for disassembly and installation and has high installation stability.

[0036] In some embodiments, as Figure 1 、 Figure 2 and Figure 3 shown, a U-shaped handrail 2 is installed on the reaction plate 1. The handrail 2 is used to assist the rotation of the reaction plate 1 along the installation pin 7, assist in alignment and tightening, etc., making the operation more labor-saving.

[0037] In some embodiments, as Figure 1 、 Figure 2 and Figure 3 shown, a pin hole for installing the installation pin 7 is formed in the middle of the connecting plate 5. First connection holes 5-1 and second connection holes 5-2 are symmetrically arranged on both sides of the pin hole. The plug-in pin 6 is connected to the reaction plate 1 through the first connection hole 5-1 or the second connection hole 5-2. When the reaction plate 1 rotates 180°, by installing the plug-in pin 6 in different connection holes, the limiting and anti-torsion requirements of bolts at different positions can be met.

[0038] In some embodiments, as Figure 1 、 Figure 2 and Figure 3 shown, an installation hole 8-1 for installing the tightening gun 10 is provided on the installation plate 8. The tightening sleeve 11 of the tightening gun 10 is installed in the installation hole 8-1 and fixed through a tightening gun lock nut 12, making the installation more stable; during use, one bolt of the double-bolt fastening structure on the thrust rod is limited and anti-torsioned through a reaction sleeve, and the other bolt is tightened by relying on the tightening gun 10, effectively meeting the product use requirements of the double-bolt fastening structure.

[0039] In some embodiments, as Figure 1 、 Figure 2 shown, an arc-shaped groove 5-3 matching the shape of the tightening sleeve 11 is formed at one end of the connecting plate 5 close to the installation hole 8-1. The tightening gun 10 is supported through the arc-shaped groove 5-3 to ensure that the tightening gun 10 is more stable and does not shift during operation.

[0040] In some embodiments, the installation plate 8 is fixedly connected to the connecting plate 5 through bolts, which is convenient for disassembly and installation.

[0041] Taking the double-bolt fastening structure with the first bolt 13 and the second bolt 14 as the thrust rod as an example for illustration:

[0042] When in use, as Figure 4 , Figure 5 and Figure 6 shown, when the plug and pull pin 6 passes through the first connection hole 5-1 and is connected to the reaction plate 1 (state A), at this time, it is connected to the first bolt 13 on the thrust rod through the first reaction sleeve 3, and the first reaction sleeve 3 is relied on to limit the position and resist torsion of the first bolt 13. At the same time, the second bolt 14 is tightened by the tightening gun 10 on the mounting plate 8;

[0043] Similarly, as Figure 7 , Figure 8 and Figure 9 shown, after the reaction plate 1 is rotated 180° along the mounting pin 7, the plug and pull pin 6 passes through the second connection hole 5-2 and is connected to the reaction plate 1 (state B). At this time, it is connected to the second bolt 14 on the thrust rod through the second reaction sleeve 9, and the second reaction sleeve 9 is relied on to limit the position and resist torsion of the second bolt 14. At the same time, the first bolt 13 is tightened by the tightening gun 10 on the mounting plate 8. It is safe and reliable to use. When tightening the bolt, another bolt among the two bolts is borrowed as the anti-torsion point, and the two bolts resist torsion with each other, so that the reaction sleeve does not slip off or get stuck, avoiding harm to the operator's body. And it is convenient to use. After tightening one bolt, rotate the reaction force arm, fix it with the plug and pull pin, and continue to tighten the other bolt, which is efficient and fast, reducing the auxiliary time and improving the efficiency.

[0044] The reaction force arm for assembling and tightening the thrust rod of the utility model plays an anti-torsion role, effectively offsetting the tool torsion, releasing the operator's physical strength, reducing the physical strength consumption of the operator, and the personnel only need to lift and assist; ensuring reliable product quality and reducing noise; at the same time, it can meet the use requirements of products with a double-bolt fastening structure, and can adjust the distance between the reaction sleeves to adapt to the center distance of the two bolts of 151 mm - 168 mm, with strong compatibility. Fixed by the plug and pull pin, the state of the reaction force arm can be quickly changed.

[0045] Finally, it should be noted that: the above are only the preferred embodiments of the utility model and are not used to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A reaction force arm for assembling and tightening a thrust rod of a dump truck, characterized in that, Comprising: A reaction force plate (1) with a reaction force sleeve mounted thereon; A connecting plate (5) rotatably connected to the reaction force plate (1) by a mounting pin shaft (7). An insertion and extraction pin shaft (6) is also mounted between the connecting plate (5) and the reaction force plate (1), and the insertion and extraction pin shaft (6) is used for locking after the reaction force plate (1) rotates in place along the mounting pin shaft (7); A mounting plate (8) mounted at one end of the connecting plate (5), and the mounting plate (8) is used for mounting a tightening gun (10).

2. The reaction force arm for assembling and tightening the thrust rod of a dump truck according to claim 1, wherein, The reaction force plate (1) is T-shaped, and two reaction force sleeves are mounted at opposite ends of the reaction force plate (1).

3. The reaction force arm for assembly tightening of the thrust rod of a dump truck according to claim 1, characterized in that, Adjustment holes (1-1) for mounting the reaction force sleeves are formed on the reaction force plate (1), and the adjustment holes (1-1) are oblong holes.

4. A reaction force arm for assembly and tightening of a thrust rod of a dump truck according to claim 1, characterized in that, The reaction force sleeve is fixed to the reaction force plate (1) by a reaction force sleeve locking nut (4).

5. The reaction force arm for assembly and tightening of the thrust rod of a dump truck according to claim 1, characterized in that, A U-shaped handrail (2) is mounted on the reaction force plate (1).

6. The reaction force arm for assembly and tightening of the thrust rod of a dump truck according to claim 1, characterized in that, A pin shaft hole for mounting the mounting pin shaft (7) is formed in the middle of the connecting plate (5). A first connection hole (5-1) and a second connection hole (5-2) are symmetrically provided on both sides of the pin shaft hole, and the insertion and extraction pin shaft (6) is connected to the reaction force plate (1) through the first connection hole (5-1) or the second connection hole (5-2).

7. The reaction force arm for assembling and tightening the thrust rod of a dump truck according to claim 1, characterized in that, Mounting holes (8-1) for mounting the tightening gun (10) are provided on the mounting plate (8), and the tightening sleeve (11) of the tightening gun (10) is mounted in the mounting holes (8-1) and fixed by a tightening gun locking nut (12).

8. A reaction force arm for assembling and tightening a thrust rod of a dump truck according to claim 7, characterized in that, An arc-shaped groove (5-3) matching the shape of the tightening sleeve (11) is formed at one end of the connecting plate (5) close to the mounting hole (8-1).

9. The reaction force arm for assembling and tightening the thrust rod of a dump truck according to claim 1, characterized in that, The mounting plate (8) is fixedly connected to the connecting plate (5) by bolts.

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