CN215848085U

CN215848085U - Transmission shaft assembly fixture

Info

Publication number: CN215848085U
Application number: CN202121817705.4U
Authority: CN
Inventors: 常通; 谢德权; 李兴国; 曹如
Original assignee: Xuzhou XCMG Schwing Machinery Co Ltd
Current assignee: Xuzhou XCMG Schwing Machinery Co Ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-02-18
Anticipated expiration: 2031-08-05

Abstract

The utility model provides a transmission shaft assembling tool, and belongs to the technical field of mechanical part assembling. The tool comprises a support, two lifting mechanisms, two first connecting pieces, two second connecting pieces and four rolling devices; the two lifting mechanisms are oppositely and fixedly arranged at two ends of the top of the bracket; the two first connecting pieces are fixedly connected to the top ends of the two lifting mechanisms respectively; the two second connecting pieces are parallel to each other and horizontally erected between the top ends of the two first connecting pieces; every two rolling devices are rotatably connected to two ends of each second connecting piece. The transmission shaft is assembled by using the tool, so that the installation efficiency and the assembly quality of the transmission shaft can be improved, and the labor intensity of workers is reduced.

Description

Transmission shaft assembly fixture

Technical Field

The utility model belongs to the technical field of mechanical part assembly, and particularly relates to a transmission shaft assembly tool.

Background

When the pumping products are assembled, the main pump needs to be fixed on a chassis frame, and then the transmission shaft is assembled and connected with the main pump and the chassis from the lower part. Due to the limitation of the chassis structure and the heavy transmission shaft, the manual installation cannot be directly realized. On-site adoption is assisted with hydraulic carrier-and-stacker and is assembled, but the transmission shaft installation needs angle of adjustment just can be fixed with the mounting hole, and hydraulic carrier-and-stacker removes to go up and down inconvenient, causes the assembly efficiency low, needs to consume great energy adjustment, takes a lot of work and time.

The chinese patent application CN109834449A discloses an auxiliary assembly mechanism for a transmission shaft, which comprises a bracket, a hold-down mechanism, an operation mechanism, a tool for pressing an inner ring of a shaft, and a tool for pressing an outer ring of the shaft; the pressing mechanism is in sliding fit with the bracket; the control mechanism is arranged on the bracket and used for controlling the movement stroke of the pressing mechanism and providing pressing force for the pressing mechanism; the shaft pressing inner ring tool is arranged to be positioned on the support to support the transmission bearing, and the shaft pressing inner ring tool is matched with the pressing mechanism to pre-install the transmission bearing on the transmission shaft; the outer ring pressing tool is arranged on the support and used for transmitting pressing force of the pressing mechanism to the transmission bearing so as to fix the transmission bearing to the pump shell. The assembly mechanism can improve assembly accuracy, but the operation procedure of the mechanism is very complicated and takes long time, and the assembly mechanism does not have the functions of angle adjustment and lifting.

SUMMERY OF THE UTILITY MODEL

In order to improve the assembly efficiency and the assembly quality of a chassis transmission shaft of a pumping product and reduce the labor intensity of workers, the utility model provides the transmission shaft assembly tool, which can adjust the angle and the height of the transmission shaft to enable the transmission shaft to be accurately aligned with an installation hole, and improve the assembly efficiency and the assembly quality of the transmission shaft. Specifically, the utility model is realized by adopting the following technical scheme:

a transmission shaft assembling tool comprises a support, two lifting mechanisms, two first connecting pieces, two second connecting pieces and four rolling devices; the two lifting mechanisms are oppositely and fixedly arranged at two ends of the top of the bracket; the two first connecting pieces are fixedly connected to the top ends of the two lifting mechanisms respectively; the two second connecting pieces are parallel to each other and horizontally erected between the top ends of the two first connecting pieces; two rolling devices are rotatably connected to two ends of each second connecting piece.

When the transmission shaft is assembled, the transmission shaft is moved to the assembling tool and is placed between the two second connecting pieces; conveying the transmission shaft to the position below a pump truck to be assembled, and enabling the transmission shaft to be lifted by the lifting mechanism, so that one end of the transmission shaft is firstly combined with the main pump; and then, a fixing bolt is penetrated and installed to finish the bolt fastening at one end. After one end is assembled, the height of the transmission shaft is adjusted through the lifting mechanism, the other end is attached to a position needing to be installed, a fastening bolt is installed, and after the fastening bolt is pre-screwed, the fastening bolt is fixed and fastened. In the penetrating and assembling process, in order to facilitate bolt hole alignment, the transmission shaft can be rotated by the rolling device, so that the swinging shaft can rotate at any angle, and the penetrating and assembling efficiency is improved.

Preferably, the lifting mechanism is one of an electric lifting mechanism, a pneumatic lifting mechanism or a hydraulic lifting mechanism.

Preferably, the rolling means is a bearing.

Preferably, the first connecting piece is a steel pipe or a steel column with a regular polygon or a circle section.

The structure of the first connecting piece is arranged according to the weight of the transmission shaft required to be borne by the assembly tool.

Preferably, the second connector is a seamless tube.

Preferably, a groove is formed in the first connecting piece, and the second connecting piece is fixedly arranged in the groove.

Preferably, the bottom of the support is provided with four universal wheels.

Preferably, at least two universal wheels are provided with braking devices.

Preferably, each rolling device surface is provided with an anti-slip layer.

Preferably, the anti-slip layer is a rubber layer.

Because the position of the pump truck needing to be assembled is not completely consistent, the universal wheel can enable the assembly tool to realize quick movement and positioning.

Compared with the prior art, the utility model has the beneficial effects that: the assembly tool is provided with the automatic lifting mechanism, so that the overall height of the transmission shaft can be freely adjusted or the heights of two ends can be adjusted in a differentiation manner, and the height does not need to be adjusted manually; the rolling device can rotate the oscillating shaft of the transmission shaft, the position of the oscillating shaft can be adjusted by 360 degrees, the oscillating shaft is accurately aligned with the mounting hole, and the height adjusted by combining the lifting structure can be quickly assembled with high quality. In addition, the universal wheel can make the frock realize the quick travel location, conveniently carries the transmission shaft, reduces artifical intensity of labour by a wide margin.

Drawings

Fig. 1 is a perspective view of a transmission shaft assembly fixture provided in embodiment 1 of the present invention;

fig. 2 is a schematic cross-sectional view of a first connecting member (steel column) and a second connecting member (seamless tube) of the transmission shaft assembly fixture according to embodiment 2 of the present invention, where the second connecting member (seamless tube) is fixedly disposed in a groove on the first connecting member (steel column).

In the figure: 1. a support; 2. a lifting mechanism; 3. a first connecting member; 4. a second connecting member; 5. a rolling device; 6. a universal wheel; 7. and (4) a groove.

Detailed Description

In order to further understand the summary of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments.

Example 1

The embodiment provides a transmission shaft assembly fixture, the fixture comprises a support 1, a lifting mechanism 2, a first connecting piece 3, a second connecting piece 4, a rolling device 5 and a universal wheel 6. As shown in fig. 1, in the present embodiment, the bracket 1 is a frame composed of 11 rectangular tubes with different lengths; the lifting mechanism 2 is a scissor jack, the first connecting piece 3 is a rectangular pipe, the second connecting piece 4 is a seamless pipe, and the rolling device 5 is a bearing. The two scissor jacks are arranged at the top end of the bracket 1; the two rectangular pipes are respectively arranged at the top ends of the two scissor jacks; the two seamless pipes are welded at the top ends of the two rectangular pipes, and the length direction of the seamless pipes is consistent with the extending direction of the shaft pipe of the transmission shaft; every two bearings are respectively arranged at two ends of one seamless tube; the universal wheel 6 is installed in the bottom of support 1, just all be provided with arresting gear on the universal wheel so that realize that the assembly fixture is fixed a position at fixed position.

When the transmission shaft is assembled, the transmission shaft is moved to the assembling tool, so that the shaft tube of the transmission shaft and the seamless tube are placed in the same length direction; conveying a transmission shaft to the position below a pump truck to be assembled, and lifting the scissor jack by using a pneumatic wrench so as to lift the transmission shaft, so that one end of the transmission shaft is firstly combined with a main pump; and then, a fixing bolt is penetrated and installed to finish the bolt fastening at one end. After one end is installed, the height of the transmission shaft is adjusted through the lifting mechanism, the other end is attached to the position needing to be installed, the fastening bolt is installed, and after the fastening bolt is pre-screwed, the fixed torque is fastened. In the penetrating and assembling process, the transmission shaft can be rotated through the bearing, so that the swinging shaft of the transmission shaft can be adjusted at any angle, bolt holes are aligned conveniently, and the penetrating and assembling efficiency is improved. Because the positions of the pump trucks required to be assembled are not completely consistent, the universal wheels can enable the assembly tool to be quickly moved and positioned.

Example 2

The transmission shaft assembly fixture provided by the embodiment is different from that of the embodiment 1 in that the first connecting member 3 is a steel column, a groove 7 is formed in the steel column, and the seamless pipe is welded in the groove 7 (as shown in fig. 2); the lifting mechanism 2 is an electric lifting mechanism; the rolling device 5 is a roller, and a rubber layer is arranged on the surface of each roller.

The using method of the transmission shaft assembling tool is the same as that of the embodiment 1.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. The present invention may be subject to various modifications and changes by any person skilled in the art. Any simple equivalent changes and modifications made in accordance with the protection scope of the present application and the content of the specification are intended to be included within the protection scope of the present invention.

Claims

1. A transmission shaft assembling tool is characterized by comprising a support, two lifting mechanisms, two first connecting pieces, two second connecting pieces and four rolling devices; the two lifting mechanisms are oppositely and fixedly arranged at two ends of the top of the bracket; the two first connecting pieces are fixedly connected to the top ends of the two lifting mechanisms respectively; the two second connecting pieces are parallel to each other and horizontally erected between the top ends of the two first connecting pieces; two rolling devices are rotatably connected to two ends of each second connecting piece.

2. The transmission shaft assembling tool according to claim 1, wherein the lifting mechanism is one of an electric lifting mechanism, a pneumatic lifting mechanism or a hydraulic lifting mechanism.

3. The transmission shaft assembling tool according to claim 1, wherein the rolling device is a bearing.

4. The transmission shaft assembling tool according to claim 1, wherein the first connecting piece is a steel pipe or a steel column with a regular polygon or a circle in cross section.

5. The transmission shaft assembling tool according to claim 1, wherein the second connecting member is a seamless pipe.

6. The transmission shaft assembling tool according to claim 1, wherein a groove is formed in the first connecting piece, and the second connecting piece is fixedly arranged in the groove.

7. The transmission shaft assembling tool according to claim 1, wherein four universal wheels are arranged at the bottom of the support.

8. The assembly tool for the transmission shaft according to claim 7, wherein at least two universal wheels are provided with braking devices.

9. The transmission shaft assembling tool according to claim 1, wherein an anti-slip layer is arranged on the surface of each rolling device.

10. The transmission shaft assembling tool according to claim 9, wherein the anti-slip layer is a rubber layer.