Special device for disassembling planetary gear

Abstract

The utility model relates to the technical field of maintenance tools, in particular to a special device for disassembling a planetary gear, which comprises a support frame, the support frame comprises a cross beam, a panel for supporting a planetary carrier or a planetary gear is arranged below the cross beam, the panel is provided with an abdicating opening for a planetary gear shaft and a bearing to fall off, and the abdicating opening is provided with a bearing. A hydraulic jack is installed at the bottom of the cross beam, and a pushing plate is detachably installed at the bottom of the hydraulic jack. The planetary gear has the effect that the problem that the planetary gear shaft and the bearing are inconvenient to detach from the planetary gear is solved.

Description

Technical Field

[0001] This application relates to the technical field of maintenance tools, and in particular, to a special device for disassembling planetary gears. Background Art

[0002] It is a transmission device composed of a central shaft and several surrounding planetary gears, and is often used in [applications]. It consists of [components], planetary gears, [components], and [components], and its function is to achieve the transmission of power and torque. The transmission principle of the planetary gears relies on the mutual meshing between the planet carrier, planetary gears, sun gear, and ring gear.

[0003] When maintaining planetary gears, it is necessary to disassemble the bearings inside the planetary gears and the planetary gear shafts inside the bearings. However, since the planetary gear shafts are in interference fit with the planet carrier and bearings, and the bearings are in interference fit with the planetary gears, there is a problem that it is inconvenient to disassemble the planetary gear shafts and bearings. Utility Model Content

[0004] In order to improve the problem that it is inconvenient to disassemble the planetary gear shafts and bearings from the planetary gears, this application provides a special device for disassembling planetary gears.

[0005] A special device for disassembling planetary gears provided by this application adopts the following technical solutions:

[0006] A special device for disassembling planetary gears includes a support frame. The support frame includes a cross beam. A panel for supporting the planet carrier or planetary gears is arranged below the cross beam. A relief opening for the planetary gear shaft and bearing to fall through is arranged on the panel. A hydraulic jack is installed at the bottom of the cross beam, and a push plate is detachably installed at the bottom of the hydraulic jack.

[0007] By adopting the above technical solutions, the staff places the planet carrier on the panel, aligns the planetary gear shaft with the relief opening below, then starts the hydraulic jack to first push out the planetary gear shaft, and then disassembles the planetary gear from the planet carrier. The planetary gear is placed on the panel, and then the push plate is installed. The bearing is pushed out through the cooperation of the push plate and the hydraulic jack. The staff can use the above disassembly tooling to conveniently remove the planetary gear shaft and bearing, improving the overall maintenance efficiency.

[0008] Optionally, an extension rod is detachably installed at the bottom of the piston rod of the hydraulic jack.

[0009] By adopting the above technical solutions, the extension rod can adapt to the limited telescopic range of the hydraulic jack.

[0010] Optionally, a second connecting component is provided between the hydraulic jack and the extension rod. The second connecting component includes a connecting cylinder one detachably sleeved on the piston rod of the hydraulic jack and the extension rod, and a second connecting bolt is respectively installed between the connecting cylinder one and the piston rod of the hydraulic jack and the extension rod.

[0011] By adopting the above technical solution, when the extension rod needs to be installed, the connecting cylinder one is sleeved on the piston rod of the hydraulic jack and the extension rod, and then fixed with the second connecting bolt. The operation of the staff is simple, and the extension rod is easy to install and disassemble.

[0012] Optionally, a third connecting component is provided between the pushing plate and the piston rod of the hydraulic jack or the extension rod. The third connecting component includes a connecting cylinder two detachably sleeved on the piston rod of the hydraulic jack or the extension rod. The connecting cylinder two is fixedly connected to the top surface of the pushing plate, and a third connecting bolt is installed between the connecting cylinder two and the piston rod of the hydraulic jack or the extension rod.

[0013] By adopting the above technical solution, when installing the pushing plate, the connecting cylinder two is sleeved on the piston rod of the hydraulic jack or the extension rod, and then fixed with the third connecting bolt. The operation of the staff is simple, and the pushing plate is easy to install and disassemble.

[0014] Optionally, a limiting block is fixedly connected to the top end and the bottom end of the extension rod respectively. Limiting grooves adapted to the limiting blocks are provided on the bottom end of the piston rod of the hydraulic jack and the top surface of the pushing plate, and the limiting blocks are detachably inserted into the limiting grooves.

[0015] By adopting the above technical solution, when the limiting block is inserted into the limiting groove, it can be used as a signal for installing the second connecting bolt or the third connecting bolt, thereby improving the installation efficiency.

[0016] Optionally, the hydraulic jack is detachably installed under the cross beam.

[0017] By adopting the above technical solution, the hydraulic jack can be installed or disassembled for easy maintenance.

[0018] Optionally, a first connecting component is provided between the hydraulic jack and the cross beam. The first connecting component includes two flange plates. One flange plate is fixedly connected to the bottom of the cross beam, and the other flange plate is fixedly connected to the top of the hydraulic jack. A plurality of first connecting bolts are installed between the two flange plates.

[0019] By adopting the above technical solution, when the hydraulic jack needs to be repaired, loosening a plurality of first connecting bolts is sufficient, thereby facilitating the installation or disassembly of the hydraulic jack.

[0020] Optionally, a buffer pad is provided below the relief opening.

[0021] By adopting the above technical solution, the buffer pad can buffer the falling planetary gear shaft or bearing, thereby reducing damage to the planetary gear shaft or bearing.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The staff placed the planet carrier on the panel so that the planet gear shaft corresponded to the clearance opening below, and then started the hydraulic jack to push out the planet gear shaft first, then removed the planet gear from the planet carrier, placed the planet gear on the panel, and then installed the push plate. The bearing was pushed out by the push plate and the hydraulic jack. The staff can use the above disassembly tooling to remove the planet gear shaft and bearing more conveniently, which improves the overall maintenance efficiency;

[0024] 2. The extension rod can be adapted to situations where the telescopic range of the hydraulic jack is limited;

[0025] 3. The hydraulic jack can be installed or disassembled for easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the disassembly tooling according to an embodiment of the present application.

[0027] Figure 2 It is a front view of the disassembly tooling of the embodiment of the present application.

[0028] Figure 3 It is a partial structural exploded schematic diagram of the disassembly tooling according to an embodiment of the present application.

[0029] Explanation of the reference numerals: 1. support frame; 10. base; 11. column; 12. beam; 13. panel; 130. clearance opening; 14. support plate; 15. buffer pad; 2. hydraulic jack; 3. connecting component one; 30. flange; 31. connecting plate; 32. connecting bolt one; 4. extension rod; 40. limit block; 5. connecting component two; 50. connecting tube one; 51. connecting bolt two; 6. push plate; 7. connecting component three; 70. connecting tube two; 71. connecting bolt three. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 3 This application is described in further detail.

[0031] The embodiment of the present application discloses a device specifically for disassembling planetary gears. Figure 1 and Figure 2, A special device for disassembling planetary gears includes a support frame 1. The support frame 1 includes a base 10. On both sides of the base 10, a vertical column 11 is fixedly connected respectively. Between the tops of the two vertical columns 11, a cross beam 12 is fixedly connected. Between the middles of the two vertical columns 11, a panel 13 is also fixedly connected. The panel 13 is used to support the planet carrier. A relief opening 130 is provided on the panel 13. The bearings and planet gear shafts in the planetary gears can both fall through the relief opening 130.

[0032] Refer to Figure 1 and Figure 2 , Between the panel 13 and the base 10, a plurality of support plates 14 are evenly and fixedly connected. A space for storing items is formed between two adjacent support plates 14. In order to buffer the impact on the base 10 when the bearings or planet gear shafts fall, a buffer pad 15 made of rubber material is laid on the top surface of the base 10 corresponding to the relief opening 130.

[0033] Refer to Figure 2 and Figure 3 , Below the cross beam 12, a hydraulic jack 2 is vertically arranged. The hydraulic jack 2 is used to push out the planet gear shaft from the bearings and the planet carrier and to push out the bearings from the planetary gears. The hydraulic jack 2 is connected to the cross beam 12 through a first connection assembly 3. The first connection assembly 3 includes two flange plates 30. One of the flange plates 30 is fixed to the bottom of the cross beam 12 through two connecting plates 31. The other flange plate 30 is fixedly connected to the top of the hydraulic jack 2. The two flange plates 30 are connected through a plurality of first connecting bolts 32.

[0034] Refer to Figure 2 and Figure 3 , In order to adapt to the disassembly requirements of planetary gears with smaller thickness, an extension rod 4 can be adaptively installed below the hydraulic jack 2. The extension rod 4 is connected to the hydraulic jack 2 through a second connection assembly 5. The second connection assembly 5 includes a first connection cylinder 50 detachably sleeved on the extension rod 4 and the piston rod of the hydraulic jack 2. A second connecting bolt 51 is installed between the first connection cylinder 50 and the extension rod 4. A second connecting bolt 51 is also installed between the first connection cylinder 50 and the piston rod of the hydraulic jack 2.

[0035] Refer to Figure 2 and Figure 3 , In order to facilitate pushing out the bearings from the planetary gears, a push plate 6 is also arranged below the extension rod 4. The push plate 6 is installed on the extension rod 4 through a third connection assembly 7 or directly installed on the hydraulic jack 2. The third connection assembly 7 includes a second connection cylinder 70 fixedly connected to the top surface of the push plate 6. The extension rod 4 or the piston rod of the hydraulic jack 2 is adapted to and detachably inserted into the second connection cylinder 70. A third connecting bolt 71 is connected between the second connection cylinder 70 and the extension rod 4 or the piston rod of the hydraulic jack 2, thereby fixing the push plate 6.

[0036] Refer toFigure 3 In order to improve the convenience of installation, a limit block 40 is fixedly connected to the top and bottom ends of the extension rod 4, and correspondingly, a limit groove (not shown in the figure) adapted to the limit block 40 is opened at the end of the piston rod of the hydraulic jack 2 and the top of the push plate 6. When the limit block 40 is inserted into the limit groove, the staff can easily install the connecting bolt 2 51 and the connecting bolt 3 71.

[0037] The implementation principle of a special device for disassembling planetary gears in the embodiment of the present application is as follows: when the planetary gear needs to be disassembled and repaired, the staff first lifts the planetary gear using a crane, so that a part of the planetary frame is placed on the panel 13, so that the planetary gear shaft corresponds to the lower clearance opening 130, and then starts the hydraulic jack 2 to push out the planetary gear shaft first. If the hydraulic jack 2 has insufficient stroke, the extension rod 4 can be installed on the hydraulic jack 2 through the connecting component 2 5. Subsequently, the planetary gear is removed from the planetary frame, and then the planetary gear is placed on the panel 13, and the push plate 6 is installed on the hydraulic jack 2 or the extension rod 4 through the connecting component 3 7. Since the push plate 6 has a large surface area, it can disperse the force, thereby facilitating the ejection of the bearing from the planetary gear.

[0038] When the hydraulic jack 2 needs to be repaired, the hydraulic jack 2 can be disassembled or installed through the connecting assembly 1 3, which is simple and convenient to operate. In the process of installing the extension rod 4 or the push plate 6, the limit block 40 cooperates with the limit groove to facilitate the installation of the connecting bolt 2 51 or the connecting bolt 3 71. The above disassembly tool can effectively disassemble the planetary gear shaft and bearing, which is simple for the staff to operate and the overall maintenance efficiency is also significantly improved.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A planetary gear disassembly device, characterized in that: The invention comprises a support frame (1), wherein the support frame (1) comprises a crossbeam (12), a panel (13) for supporting a planetary frame or a planetary gear is arranged below the crossbeam (12), a clearance opening (130) for the planetary gear shaft and bearing to fall is arranged on the panel (13), a hydraulic jack (2) is installed at the bottom of the crossbeam (12), and a push plate (6) is detachably installed at the bottom of the hydraulic jack (2).

2. The device for disassembling planetary gears according to claim 1, characterized in that: An extension rod (4) is detachably mounted on the bottom of the piston rod of the hydraulic jack (2).

3. The device for disassembling planetary gears according to claim 2, characterized in that: A second connecting assembly (5) is provided between the hydraulic jack (2) and the extension rod (4), and the second connecting assembly (5) comprises a first connecting tube (50) which is detachably mounted on the piston rod of the hydraulic jack (2) and the extension rod (4), and a second connecting bolt (51) is respectively installed between the first connecting tube (50) and the piston rod of the hydraulic jack (2) and the extension rod (4).

4. A planetary gear disassembly device according to claim 1 or 2, characterized in that: A connecting assembly three (7) is provided between the push plate (6) and the piston rod or extension rod (4) of the hydraulic jack (2), and the connecting assembly three (7) includes a connecting tube two (70) which is detachably mounted on the piston rod or extension rod (4) of the hydraulic jack (2), and the connecting tube two (70) is fixedly connected to the top surface of the push plate (6), and a connecting bolt three (71) is installed between the connecting tube two (70) and the piston rod or extension rod (4) of the hydraulic jack (2).

5. The device for disassembling planetary gears according to claim 4, characterized in that: The top and bottom ends of the extension rod (4) are respectively fixedly connected with a limit block (40); the bottom end of the piston rod of the hydraulic jack (2) and the top surface of the push plate (6) are both provided with limit grooves adapted to the limit blocks (40); the limit blocks (40) are detachably inserted into the limit grooves.

6. The device for disassembling planetary gears according to claim 1, characterized in that: The hydraulic jack (2) is detachably mounted below the crossbeam (12).

7. The device for disassembling planetary gears according to claim 6, characterized in that: A connecting assembly (3) is provided between the hydraulic jack (2) and the cross beam (12), and the connecting assembly (3) comprises two flanges (30), one of the flanges (30) is fixedly connected to the bottom of the cross beam (12), and the other flange (30) is fixedly connected to the top of the hydraulic jack (2), and a plurality of connecting bolts (32) are installed between the two flanges (30).

8. The device for disassembling planetary gears according to claim 1, characterized in that: A buffer pad (15) is provided below the clearance opening (130).

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