Transmission shaft dismounting device

Abstract

The utility model relates to a transmission shaft dismounting and mounting device which comprises a lifting device, a mounting plate, a moving structure, a bearing plate and at least two bearing frames. And the mounting plate is in transmission connection with the lifting device. According to the transmission shaft disassembling and assembling device, the two bearing frames are driven by the lifting device to move upwards, so that sleepers on the two bearing frames make contact with a transmission shaft, meanwhile, the transmission shaft is located in V-shaped grooves in the sleepers, and then the transmission shaft is disassembled from an internal combustion locomotive and descends through the lifting device; the lifting device is pushed to transfer the transmission shaft, and when the transmission shaft moves to the side, not shielded by the vehicle, of the trench, the lifting device is lifted again, so that the transmission shaft and the universal wheels move to the position above the trench, the four supporting plates are pulled out from the interiors of the sleeves, and the universal wheels are located on the ground on the two sides of the upper surface of the trench; and then the height of the lifting device is reduced, so that the universal wheels on the front side and the rear side are attached to the ground, and at the moment, the transmission shaft can be transferred by pushing the bearing frame.

Description

Technical Field

[0001] The utility model relates to the technical field of scissor lifts, in particular to a transmission shaft disassembly and assembly device. Background Art

[0002] The internal combustion engine is a kind of power machinery. It is a thermal engine that burns fuel inside the machine and converts the heat energy it releases directly into power. The piston internal combustion engine originated from the research of Dutch physicist Huygens on obtaining power from gunpowder explosion, but it was unsuccessful because the combustion of gunpowder was difficult to control. In 1794, the British Street proposed to obtain power from the combustion of fuel, and for the first time proposed the concept of mixing fuel and air. In 1833, the British Wright proposed a design that directly uses combustion pressure to push the piston to do work. Rail transit diesel locomotives use hydraulic-mechanical transmission. In order to ensure the safe operation of the locomotive, the drive shaft must be regularly disassembled and maintained.

[0003] At present, there is no tooling for disassembling the drive shaft of a diesel locomotive, and the work can only be done manually. Due to the large size and heavy weight of the drive shaft, the disassembly and assembly work must be carried out at the bottom of the diesel locomotive. The working space in the trench is relatively small, and manual work is time-consuming and labor-intensive. The drive shaft parts are easily damaged during the disassembly process, and the drive shaft needs to be moved to the top of the trench after disassembly. During the transportation process, the drive shaft is easily rubbed against the edge of the trench, causing wear on the outer surface of the drive shaft, which in turn affects the subsequent assembly and use. It is necessary to develop a drive shaft disassembly and assembly device to improve the working efficiency while ensuring the disassembly and assembly quality and improving the operating safety of the diesel locomotive. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a drive shaft disassembly and assembly device, which solves the problem that the drive shaft needs to be moved to the top of the trench after disassembly. During the transportation process, the drive shaft is easily rubbed against the edge of the trench, causing wear on the outer surface of the drive shaft.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmission shaft disassembly and assembly device, comprising a lifting device, a mounting plate, a moving structure, a bearing plate and at least two bearing frames;

[0006] The mounting plate is connected to the lifting device by driving, the bearing plate is arranged on the mounting plate by a movable structure, and at least two bearing racks are arranged on the bearing plate at intervals on the left and right sides;

[0007] Sleepers are installed on the upper end surfaces of the two support frames, and V-shaped grooves for the transmission shaft to be placed are opened on the upper end surfaces of the sleepers;

[0008] The movable structure comprises at least two sleeves, at least two of the sleeves are arranged on the lower surface of the bearing plate at left and right intervals, at least two of the sleeves are slidably connected to two support plates, and the lower surfaces of the two support plates are installed with universal wheels for contacting both sides of the upper surface of the ditch.

[0009] Furthermore, the two sleeves are both fitted on the upper surface of the mounting plate.

[0010] Furthermore, at least two reinforcing ribs are installed between opposite sides of the two sleeves, and both of the reinforcing ribs are connected to the lower surface of the bearing plate.

[0011] Further, a positioning bolt is mounted at the center of the upper surface of the mounting plate;

[0012] Corresponding to the positioning bolt, a through hole for inserting the positioning bolt is opened inside the carrying plate.

[0013] Furthermore, the positioning bolt is in the shape of a platform.

[0014] Furthermore, the front and rear sides of the sleeve are both equipped with limit strips;

[0015] Corresponding to the limiting strip, a sliding groove matching with the limiting strip is opened inside the supporting plate.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] The transmission shaft disassembly and assembly device drives two carriers to move upward through a lifting device, so that the sleepers on the two carriers are in contact with the transmission shaft, and at the same time, the transmission shaft is located in the V-shaped groove inside the sleeper. The transmission shaft is then removed from the diesel locomotive, lowered through the lifting device, and the transmission shaft is transferred by pushing the lifting device. When it is moved to the side of the ditch that is not blocked by the vehicle, the lifting device is raised again, so that the transmission shaft and the universal wheel are moved to the top of the ditch, and four support plates are pulled out from the inside of the sleeve, so that the universal wheel is located on the ground on both sides of the upper surface of the ditch. Then the height of the lifting device is lowered, so that the universal wheels on the front and rear sides are both in contact with the ground, and the transmission shaft can be transferred by pushing the carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the assembly structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the mobile structure of the utility model;

[0021] Figure 4This is a bottom view schematic diagram of the mobile structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the sleeve of the utility model.

[0023] In the figure: 1. lifting device; 2. mounting plate; 3. moving structure; 301. sleeve; 302. support plate; 303. universal wheel; 304. reinforcing rib; 305. limiting strip; 4. bearing plate; 5. bearing frame; 6. sleeper; 7. positioning bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-2 A transmission shaft disassembly and assembly device in this embodiment is used to support the transmission shaft on the diesel locomotive when disassembling it, and transport the transmission shaft from the inside of the trench to the ground, thereby increasing the convenience of disassembling the transmission shaft and avoiding friction between the transmission shaft and the edge of the trench during transportation;

[0026] Specifically, it includes a lifting device 1, a mounting plate 2, a moving structure 3, a bearing plate 4 and at least two bearing frames 5; the mounting plate 2 is transmission-connected to the lifting device 1, the bearing plate 4 is arranged on the mounting plate 2 through the moving structure 3, and at least two bearing frames 5 are arranged on the bearing plate 4 at left and right intervals; sleepers 6 are installed on the upper end surfaces of the two bearing frames 5, and a V-shaped groove for the transmission shaft to be placed is opened on the upper end surface of the sleeper 6.

[0027] It should be noted that the lifting device 1 in this embodiment is a scissor lift, which is a prior art and is disclosed in detail in Chinese Patent Publication No. CN214570436U, which will not be described in detail here. In this application, the lifting device 1 drives the components on the mounting plate 2 to move up and down, so as to realize the transportation of the drive shaft.

[0028] In actual use, the two carriers 5 are driven upward by the lifting device 1, so that the sleepers 6 on the two carriers 5 are in contact with the transmission shaft, and the transmission shaft is located in the V-groove inside the sleepers 6. Then, the transmission shaft is removed from the diesel locomotive, lowered through the lifting device 1, and the transmission shaft is transferred by pushing the lifting device 1.

[0029] See also Figure 3-5In order to facilitate the transportation of the transmission shaft, the mobile structure 3 in this embodiment includes at least two sleeves 301, and at least two sleeves 301 are arranged on the lower surface of the bearing plate 4 with a left-right interval. The interiors of at least two sleeves 301 are slidably connected with two support plates 302, and the lower surfaces of the two support plates 302 are installed with universal wheels 303 for contacting both sides of the upper surface of the trench.

[0030] In actual use, the lifting device 1 is moved to the side of the ditch that is not blocked by the vehicle, and the lifting device 1 is lifted again so that the transmission shaft and the universal wheel 303 are moved to the top of the ditch. The four support plates 302 are pulled out from the inside of the sleeve 301 so that the universal wheel 303 is located on the ground on both sides of the upper surface of the ditch. Then, the height of the lifting device 1 is lowered so that the universal wheels 303 on the front and rear sides are both in contact with the ground. At this time, the transmission shaft can be transferred by pushing the carrier frame 5.

[0031] It should be noted that, in order to effectively support the transmission shaft and ensure the stability of the carrier frame 5 when the transmission shaft is disassembled, the two sleeves 301 in this embodiment are both attached to the upper surface of the mounting plate 2.

[0032] Furthermore, in order to improve the strength of the bearing plate 4 , at least two reinforcing ribs 304 are installed between opposite sides of the two sleeves 301 , and the two reinforcing ribs 304 are both connected to the lower surface of the bearing plate 4 .

[0033] In actual settings, the installation of the reinforcing ribs 304 can effectively increase the overall strength of the bearing plate 4. After being connected to the lower surface of the bearing plate 4, it can withstand stress and loads in the vertical and horizontal directions, thereby preventing or reducing the possibility of bending or deformation of the bearing plate 4 due to force.

[0034] Further preferably, in order to increase the stability of the transmission shaft during transportation and avoid the position displacement of the sleeve 301 on the mounting plate 2, a positioning bolt 7 is installed at the center of the upper surface of the mounting plate 2 in this embodiment; corresponding to the positioning bolt 7, a through hole for inserting the positioning bolt 7 is opened inside the bearing plate 4.

[0035] In actual use, when the sleeve 301 is attached to the mounting plate 2, the positioning bolt 7 is inserted into the through hole inside the supporting plate 4, which can effectively prevent the position of the supporting plate 4 and the sleeve 301 on the mounting plate 2 from being offset during transportation.

[0036] It should be noted that, in order to facilitate the insertion of the positioning bolt 7 into the through hole, the positioning bolt 7 in this embodiment is preferably shaped as a platform, and the outer diameter of the upper end surface of the positioning bolt 7 is smaller than the outer diameter of the lower end surface.

[0037] In addition, in order to prevent the support plate 302 from being completely pulled out from the inside of the sleeve 301, limit strips 305 are installed on the front and rear sides of the sleeve 301; corresponding to the limit strips 305, a sliding groove matching the limit strips 305 is opened inside the support plate 302.

[0038] In actual settings, through the cooperation between the limit strip 305 and the slide groove, the support plate 302 can only move within the length range of the slide groove, which can effectively limit the moving distance of the support plate 302 and prevent the support plate 302 from being completely moved out of the head sleeve 301.

[0039] To summarize, the transmission shaft disassembly and assembly device drives the two carriers 5 to move upward through the lifting device 1, so that the sleepers 6 on the two carriers 5 are in contact with the transmission shaft, and at the same time, the transmission shaft is located in the V-groove inside the sleeper 6, and then the transmission shaft is removed from the diesel locomotive, lowered through the lifting device 1, and the transmission shaft is transferred by pushing the lifting device 1. When it moves to the side of the ditch that is not blocked by the vehicle, the lifting device 1 is raised again, so that the transmission shaft and the universal wheel 303 are moved to the top of the ditch, and the four support plates 302 are pulled out from the inside of the sleeve 301, so that the universal wheel 303 is located on the ground on both sides of the upper surface of the ditch, and then the height of the lifting device 1 is lowered, so that the universal wheels 303 on the front and rear sides are both in contact with the ground, and the transmission shaft can be transferred by pushing the carrier 5.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transmission shaft disassembly and assembly device, characterized in that: It comprises a lifting device (1), a mounting plate (2), a moving structure (3), a bearing plate (4) and at least two bearing frames (5); The mounting plate (2) is drivingly connected to the lifting device (1), the bearing plate (4) is arranged on the mounting plate (2) via a movable structure (3), and at least two bearing frames (5) are arranged on the bearing plate (4) at intervals on the left and right; Sleepers (6) are installed on the upper end surfaces of the two support frames (5), and a V-shaped groove for the transmission shaft to be placed is opened on the upper end surface of the sleepers (6); The movable structure (3) comprises at least two sleeves (301), at least two sleeves (301) are arranged on the lower surface of the bearing plate (4) at a left-right interval, at least two sleeves (301) are slidably connected to two support plates (302) inside, and universal wheels (303) are installed on the lower surfaces of the two support plates (302) for contacting the two sides of the upper surface of the trench.

2. A transmission shaft disassembly and assembly device according to claim 1, characterized in that: The two sleeves (301) are both fitted onto the upper surface of the mounting plate (2).

3. A transmission shaft disassembly and assembly device according to claim 1, characterized in that: At least two reinforcing ribs (304) are installed between opposite sides of the two sleeves (301), and both of the reinforcing ribs (304) are connected to the lower surface of the bearing plate (4).

4. A transmission shaft disassembly and assembly device according to claim 1, characterized in that: A positioning bolt (7) is mounted at the center of the upper surface of the mounting plate (2); Corresponding to the positioning bolt (7), a through hole for inserting the positioning bolt (7) is opened inside the carrying plate (4).

5. A transmission shaft disassembly and assembly device according to claim 4, characterized in that: The positioning bolt (7) is in the shape of a platform.

6. The transmission shaft disassembly and assembly device according to claim 1, characterized in that: The front and rear sides of the sleeve (301) are both equipped with limit strips (305); Corresponding to the limiting strip (305), a sliding groove matching the limiting strip (305) is provided inside the supporting plate (302).

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