Maintenance device for a switch machine reduction gear
By designing a mounting base and disassembly device with multiple structural surface limiting holes, the problem of requiring multiple bases in the existing switch machine reducer maintenance device is solved, achieving stable disassembly and assembly of parts and saving space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU METRO GRP CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-24
AI Technical Summary
Existing dedicated maintenance equipment for switch machine reducers can only disassemble and assemble one type of component. It requires multiple mounting bases, which takes up a lot of storage space. Furthermore, the bases are prone to displacement during disassembly and assembly, which can damage the components.
Design a mounting base with multiple structural surfaces and limiting holes for temporary fixing of various components of a switch machine reducer. Combined with a workbench and disassembly/assembly device, it enables precise one-to-one disassembly and assembly.
A single mounting base can accommodate a variety of components, reducing storage space requirements, improving assembly and disassembly stability, and minimizing the risk of component damage.
Smart Images

Figure CN224544499U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of maintenance devices, specifically relating to a maintenance device for a switch machine reducer. Background Technology
[0002] A speed reducer is a switching and locking mechanism in a switch machine. It reduces the high speed of a motor to a low speed suitable for switching, while simultaneously increasing the low torque input to the motor to a level sufficient to drive the load. When components of the switch machine speed reducer are damaged, a specialized repair kit for switch machine speed reducers is required for repair.
[0003] Existing dedicated maintenance equipment for switch machine reducers can only perform disassembly and assembly operations on one type of component. However, a switch machine reducer consists of a reducer housing, internal gear, external gear, eccentric sleeve, intermediate plate, input shaft, large gear, output shaft, rolling sleeve, and rollers. Therefore, workers need to prepare multiple mounting bases that match the above components, requiring a large storage space for these mounting bases. Furthermore, when disassembling and assembling components, the existing mounting bases are simply placed without being secured. As a result, the mounting bases are easily displaced under stress during the disassembly and assembly process, causing damage to the components.
[0004] Currently, there is a lack of a new maintenance device for switch machine reducers to solve the problem that previously, maintaining switch machine reducers required preparing multiple mounting bases that matched the aforementioned components.
[0005] Therefore, a new technology is needed to address the lack of a novel maintenance device for switch machine reducers in existing technologies. Utility Model Content
[0006] To address the aforementioned problems in the prior art, this utility model provides a maintenance device for a switch machine reducer, which can temporarily fix various components of the switch machine reducer using a single mounting base, eliminating the need for multiple mounting bases as in the past.
[0007] The present invention adopts the following technical solution:
[0008] A maintenance device for a switch machine reducer includes a workbench, a mounting base, and a disassembly / assembly device; the mounting base has at least two structural surfaces; each structural surface has a corresponding limiting hole for temporarily fixing reducer components; the mounting base is directly or indirectly disposed on the workbench; the disassembly / assembly device is disposed on the workbench and is used to disassemble and assemble reducer components.
[0009] Furthermore, the structural surface includes a first structural surface, a second structural surface, a third structural surface, a fourth structural surface, a fifth structural surface, and a sixth structural surface;
[0010] The first structural surface is provided with a first limiting hole, which is used for disassembling and assembling the internal gear of the reducer;
[0011] The second structural surface is provided with a second limiting hole, which is used for disassembling and assembling internal components of the reducer;
[0012] The third structural surface is provided with a third limiting hole, which is used to match the reducer bottom shell;
[0013] The fourth structural surface is provided with a fourth limiting hole, which is used for disassembling the reducer output shaft from the bearing.
[0014] The fifth structural surface is provided with a fifth limiting hole, which is used for mounting the reducer output shaft and the bearing.
[0015] The sixth structural surface has a sixth limiting hole, which is used for disassembling the eccentric sleeve and the bearing.
[0016] Furthermore, the maintenance device also includes a mounting plate for placing the mounting base; the mounting plate is disposed on the workbench.
[0017] Furthermore, the mounting plate is provided with a mounting opening and a support plate; a plurality of the support plates are disposed in the mounting opening; the mounting base can be disposed in the mounting opening and can be supported by the support plates.
[0018] Furthermore, the mounting plate is also provided with a movable sleeve plate and a guide plate; the movable sleeve plate is slidably fitted on the front and rear sides of the mounting plate; the guide plate is slidably fitted on the left and right ends of the mounting plate.
[0019] Furthermore, the mounting plate is also provided with a mounting cavity and a fixing plate; the fixing plate is slidably fitted onto the mounting plate, one end of the fixing plate extends to the mounting opening, and the other end of the fixing plate extends into the mounting cavity.
[0020] Furthermore, the mounting plate is also provided with an adjustment mechanism; the adjustment mechanism is connected to the fixing plate and is used to adjust the limiting position of the fixing plate.
[0021] Furthermore, the adjusting mechanism includes a movable sleeve, a sliding member, a drive screw, a traction rod, and a connecting rod; the movable sleeve is disposed in the mounting cavity and fixedly connected to the mounting plate; the sliding member is slidably connected to the movable sleeve; the drive screw is threadedly connected to the mounting plate, and one end of the drive screw is connected to the sliding member; one end of the traction rod is connected to the sliding member pin, and the other end of the traction rod is connected to the connecting rod pin; one end of the connecting rod is connected to the fixed plate.
[0022] Furthermore, one end of the drive screw is provided with an adjustment handle.
[0023] Furthermore, the disassembly and assembly device is a hydraulic press.
[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0025] A maintenance device for a switch machine reducer has a mounting base with at least two structural surfaces. Each structural surface is designed with corresponding limiting holes for different components of the reducer, thereby facilitating the disassembly and assembly of different components. This allows for precise one-to-one disassembly and assembly of different components. The mounting base of this invention has multiple limiting holes, making it multi-functional. A single mounting base can be used to temporarily fix various components of the switch machine reducer, eliminating the need for multiple mounting bases as in the past and reducing the space required for storage.
[0026] The working platform of this utility model facilitates the setting of the mounting base and disassembly device, and provides a guarantee for the stable setting of the mounting base and the disassembly device.
[0027] The disassembly and assembly device of this utility model facilitates the disassembly and assembly of various components of the reducer, making the disassembly and assembly of various components of the reducer easier. Attached Figure Description
[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0029] Figure 1 This is a three-dimensional schematic diagram of the repair device of this utility model;
[0030] Figure 2 This is a first-person perspective 3D schematic diagram of the mounting base;
[0031] Figure 3 This is a two-dimensional schematic diagram of the mounting base from a second perspective;
[0032] Figure 4 This is a three-dimensional diagram of the mounting base from a third-person perspective;
[0033] Figure 5 This is a perspective view of one embodiment of the mounting plate;
[0034] Figure 6 yes Figure 5 A three-dimensional diagram from another perspective.
[0035] Figure label:
[0036] 1-Maintenance equipment;
[0037] 2-Workbench;
[0038] 3-Mounting base; 31-First structural surface; 311-First limiting hole; 32-Second structural surface; 321-Second limiting hole; 33-Third structural surface; 331-Third limiting hole; 34-Fourth structural surface; 341-Fourth limiting hole; 35-Fifth structural surface; 351-Fifth limiting hole; 36-Sixth structural surface; 361-Sixth limiting hole;
[0039] 4-Disassembly and assembly device;
[0040] 5-Mounting plate; 51-Mounting port;
[0041] 61-Support plate; 62-Modible sleeve plate; 621-Opening; 63-Guide plate; 64-Mounting cavity; 65-Fixing plate;
[0042] 7-Adjusting mechanism; 71-Modible sleeve; 72-Sliding component; 73-Drive screw; 74-Traction rod; 75-Connecting rod; 76-Handle. Detailed Implementation
[0043] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.
[0044] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.
[0045] Reference Figures 1 to 6 A maintenance device 1 for a switch machine reducer includes a workbench 2, a mounting base 3, and a disassembly / assembly device 4; the mounting base 3 has at least two structural surfaces; each structural surface is provided with a limiting hole for temporary fixing of reducer components; the mounting base 3 is directly or indirectly disposed on the workbench 2; the disassembly / assembly device 4 is disposed on the workbench 2 and is used for disassembling and assembling reducer components.
[0046] Reference Figures 1 to 6Preferably, the mounting base 3 is a square mounting base with six structural surfaces. To accommodate reducer components of different specifications and sizes, each of the six structural surfaces of the mounting base 3 is provided with limiting holes for disassembling and assembling the switch machine reducer components. This allows for targeted fixation of the reducer components, enabling workers to disassemble and assemble reducer components of different specifications and sizes using only one mounting base 3, one workbench 2, and one disassembly / assembly device 4. This invention improves the applicability of the mounting base 3.
[0047] Reference Figures 1 to 6 In one embodiment, the structural surfaces include a first structural surface 31, a second structural surface 32, a third structural surface 33, a fourth structural surface 34, a fifth structural surface 35, and a sixth structural surface 36. The first structural surface 31 has a first limiting hole 311 for disassembling and assembling the internal gears of the reducer. The second structural surface 32 has a second limiting hole 321 for disassembling and assembling internal components of the reducer. The third structural surface 33 has a third limiting hole 331 for matching the reducer bottom shell. The fourth structural surface 34 has a fourth limiting hole 341 for disassembling the reducer output shaft and bearing. The fifth structural surface 35 has a fifth limiting hole 351 for installing the reducer output shaft and bearing. The sixth structural surface 36 has a sixth limiting hole 361 for disassembling the eccentric sleeve and bearing.
[0048] Reference Figures 1 to 6 In one embodiment, the first structural surface 31 is the upper end surface of the rectangular mounting base; the second structural surface 32 is the front end surface of the rectangular mounting base; the third structural surface 33 is the lower end surface of the rectangular mounting base; the fourth structural surface 34 is the left end surface of the rectangular mounting base; the fifth structural surface 35 is the rear end surface of the rectangular mounting base; and the sixth structural surface 36 is the right end surface of the rectangular mounting base.
[0049] Reference Figure 1 In one embodiment, the maintenance device 1 further includes a mounting plate 5 for placing the mounting base 3; the mounting plate 5 is disposed on the workbench 2. The presence of the mounting plate 5 improves the stability of the mounting base 3 on the workbench 2, and with the improved stability of the mounting base 3, the risk of damage to the reducer components during disassembly and assembly is effectively reduced.
[0050] Reference Figure 5 and Figure 6In one embodiment, the mounting plate 5 is provided with a mounting opening 51 and a support plate 61; a plurality of the support plates 61 are disposed in the mounting opening 51; the mounting base 3 can be disposed in the mounting opening 51 and can be supported by the support plates 61. The mounting opening 51 serves two purposes: firstly, to accommodate the fixing of the mounting base 3, and secondly, to provide space for mounting reducer components on the bottom surface of the mounting base 3.
[0051] Reference Figure 5 and Figure 6 Preferably, the mounting opening 51 is a rectangular mounting opening when viewed from above; the support plate 61 is a square support plate when viewed from above.
[0052] Reference Figure 5 and Figure 6 Preferably, four support plates 61 are provided, and the support plates 61 are respectively provided at the four corners of the mounting port 51.
[0053] Reference Figure 5 and Figure 6 In one embodiment, the mounting plate 5 is further provided with a movable sleeve 62 and a guide plate 63; the movable sleeve 62 is slidably fitted on the front and rear sides of the mounting plate 5; the guide plate 63 is located in the movable sleeve 62, and the guide plate 63 is slidably fitted on the left and right ends of the mounting plate 5.
[0054] Reference Figure 5 and Figure 6 In one embodiment, the movable sleeve 62 is a hollow structure with an opening 621. A first sliding groove is provided at the bottom of the movable sleeve 62. A first slider is provided on the mounting plate 5. The first sliding groove is slidably connected to the first slider. The movable sleeve 62 can move linearly along the length direction of the first slider.
[0055] Reference Figure 5 and Figure 6 In one embodiment, the mounting plate 5 has a second sliding groove, the bottom of the guide plate 63 has a second slider, and the bottom panel of the movable sleeve plate 62 has a wide opening (such as a large square opening). The guide plate 63 is located in the movable sleeve plate 62 and passes through the opening 621 on one side of the movable sleeve plate 62. The second slider at the bottom of the guide plate 63 is slidably connected to the second sliding groove through the wide opening. The guide plate 63 can move linearly along the length of the second sliding groove. The presence of the wide opening ensures that both the movable sleeve plate 62 and the guide plate 63 have space for (small range) displacement, avoiding obstruction of movement adjustment.
[0056] Reference Figure 5 and Figure 6In one embodiment, the mounting plate 5 is further provided with a mounting cavity 64 and a fixing plate 65; the fixing plate 65 is slidably fitted onto the mounting plate 5, with one end of the fixing plate 65 extending to the mounting opening 51 and the other end extending into the mounting cavity 64. Specifically, the mounting plate 5 has a guide opening for slidingly fitting the fixing plate 65, with one end of the guide opening communicating with the mounting opening 51 and the other end communicating with the mounting cavity 64. This guide opening provides horizontal guidance for the fixing plate 65, allowing it to move only in a horizontal linear direction. Preferably, the guide opening is a smooth guide opening.
[0057] Reference Figure 5 and Figure 6 Preferably, the mounting cavity 64 is a square annular cavity.
[0058] Reference Figure 5 and Figure 6 In one embodiment, the mounting plate 5 is further provided with an adjustment mechanism 7; the adjustment mechanism 7 is connected to the fixing plate 65 and is used to adjust the limiting position of the fixing plate 65.
[0059] Reference Figure 5 and Figure 6In one embodiment, the adjusting mechanism 7 includes a movable sleeve 71, a sliding member 72, a driving screw 73, a traction rod 74, and a connecting rod 75. The movable sleeve 71 is disposed in the mounting cavity 64 and fixedly connected to the mounting plate 5. The sliding member 72 is slidably connected to the movable sleeve 71. The driving screw 73 is threadedly connected to the mounting plate 5, and one end of the driving screw 73 is rotatably connected to the sliding member 72. One end of the traction rod 74 is pin-connected to the sliding member 72, and the other end of the traction rod 74 is pin-connected to the connecting rod 75. One end of the connecting rod 75 is connected to the fixed plate 65. Preferably, one end of the driving screw 73 is provided with an adjusting handle 76. By rotating the driving screw 73 through the handle 76, the sliding member 72 moves relative to the movable sleeve 71, thereby driving the traction rod 74 to move. The traction rod 74 drives the fixed plate 65 through the connecting rod 75 to limit and fix the mounting base 3 in the mounting opening 51. During adjustment, the force of the traction rod 74 (with a horizontal component) and the guiding effect of the guide port allow the fixing plate 65 to move horizontally. If the fixing plate 65 becomes stuck during adjustment, a force can be manually applied at a specific position to assist in its adjustment. The fixing plate 65 limits the movement of the mounting base 3, ensuring its stability and reducing the risk of damage to reducer components during disassembly and assembly. The locking mechanism 7 is achieved through a self-locking mechanism using the threaded connection between the drive screw 73 and the mounting plate 5.
[0060] Preferably, one end of the drive screw 73 is threadedly connected to the sliding member 72. Through this threaded connection, the drive screw 73 can drive the sliding member 72 during rotation, causing the sliding member 72 to move relative to the movable sleeve 71. Adjustment can be made to limit the mounting base 3 with the fixed plate 65, or to release the limitation imposed by the fixed plate 65 on the mounting base 3.
[0061] Preferably, the movable sleeve 71 is a hollow rectangular body with one end open.
[0062] Reference Figure 1 In one embodiment, the disassembly / assembly device 4 is a hydraulic press. The specific model and specifications of the hydraulic press can be selected and determined according to actual needs. The disassembly / assembly process of the reducer components using the hydraulic press can be found in the prior art and will not be described in detail here.
[0063] In one embodiment, the operation process of the maintenance device 1 of this utility model is as follows:
[0064] S1. Place the mounting base 3 in the mounting opening 51 of the mounting plate 5, and use the support plate 61 to support the mounting base 3;
[0065] S2. By rotating the drive screw 73 through the handle 76, the drive screw 73 moves outward from the mounting plate 5. The drive screw 73 drives the sliding member 72 to move outward from the mounting plate 5 (the sliding member 72 moves relative to the movable sleeve 71). The movement of the sliding member 72 drives one end of the traction rod 74 to move linearly, and the other end of the traction rod 74 drives the connecting rod 75 to move horizontally (affected by the guidance of the guide port). The connecting rod 75 drives the fixing plate 65 to horizontally press the mounting base 3 (with the guidance of the guide port).
[0066] S3. The switch machine reducer components are pressed and installed into the limiting hole by the hydraulic press;
[0067] S4. When some of the limiting holes on the mounting base 3 have been fixed with switch machine reducer components, in order to avoid some structural interference, the movable sleeve 62 and / or guide plate 63 can be adjusted to a suitable position; at the same time, the movable sleeve 62 and / or guide plate 63 can also be used to limit the position of some reducer components (the limiting function of the movable sleeve 62 or guide plate 63 depends on the connection friction of its sliding connection).
[0068] In one embodiment, to perform maintenance and installation work on the input shaft of the reducer and the 6209 bearing: First, place the mounting base 3 in the mounting opening 51 of the mounting plate 5, ensuring that the fifth limiting hole 351 of the mounting base 3 faces upward. Then, use the fixing plate 65 to limit the position of the mounting base 3. After the mounting base 3 is fixed, insert the output shaft to be repaired into the fifth limiting hole 351, use the 6209 bearing to fit on the end of the output shaft, and then use the hydraulic press to install the 6209 bearing into place.
[0069] In one embodiment, the present invention can utilize the first limiting hole to complete the installation of the internal components and internal gear of the reducer; the present invention can utilize the second limiting hole to complete the disassembly and assembly of the 6204 bearing, output shaft, 6205 bearing, and internal components of the reducer; the present invention can utilize the third limiting hole to complete the support and fixing work during the installation of the reducer bottom shell and internal components; the present invention can utilize the fourth limiting hole to complete the disassembly of the reducer output shaft and 6209 bearing; the present invention can utilize the fifth limiting hole to complete the installation of the reducer output shaft and 6209 bearing; and the present invention can utilize the sixth limiting hole to complete the disassembly of the eccentric sleeve and bearing. The "6204" in 6204 bearing, the "6205" in 6205 bearing, and the "6209" in 6209 bearing can be found in the prior art explanation, and will not be repeated here.
[0070] Other aspects of the maintenance device for a switch machine reducer described in this utility model are found in the prior art and will not be repeated here.
[0071] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A maintenance device for a switch machine reducer, characterized in that, It includes a workbench, a mounting base, and a disassembly / assembly device; the mounting base has at least two structural surfaces; each structural surface has a corresponding limiting hole for temporarily fixing reducer components; the mounting base is directly or indirectly disposed on the workbench; the disassembly / assembly device is disposed on the workbench and is used for disassembling and assembling reducer components.
2. The maintenance device for a switch machine reducer according to claim 1, characterized in that, The structural surfaces include a first structural surface, a second structural surface, a third structural surface, a fourth structural surface, a fifth structural surface, and a sixth structural surface; The first structural surface is provided with a first limiting hole, which is used for disassembling and assembling the internal gear of the reducer; The second structural surface is provided with a second limiting hole, which is used for disassembling and assembling internal components of the reducer; The third structural surface is provided with a third limiting hole, which is used to match the reducer bottom shell; The fourth structural surface is provided with a fourth limiting hole, which is used for disassembling the reducer output shaft from the bearing. The fifth structural surface is provided with a fifth limiting hole, which is used for mounting the reducer output shaft and the bearing. The sixth structural surface has a sixth limiting hole, which is used for disassembling the eccentric sleeve and the bearing.
3. The maintenance device for a switch machine reducer according to claim 1, characterized in that, The maintenance device also includes a mounting plate for placing the mounting base; the mounting plate is disposed on the workbench.
4. A maintenance device for a switch machine reducer according to claim 3, characterized in that, The mounting plate is provided with a mounting opening and a support plate; a plurality of the support plates are disposed in the mounting opening; the mounting base can be disposed in the mounting opening and can be supported by the support plates.
5. A maintenance device for a switch machine reducer according to claim 4, characterized in that, The mounting plate is also provided with a movable sleeve plate and a guide plate; the movable sleeve plate is slidably fitted on the front and rear sides of the mounting plate; the guide plate is slidably fitted on the left and right ends of the mounting plate.
6. A maintenance device for a switch machine reducer according to claim 4, characterized in that, The mounting plate is also provided with a mounting cavity and a fixing plate; the fixing plate is slidably fitted onto the mounting plate, one end of the fixing plate extends to the mounting opening, and the other end of the fixing plate extends into the mounting cavity.
7. A maintenance device for a switch machine reducer according to claim 6, characterized in that, The mounting plate is also provided with an adjustment mechanism; the adjustment mechanism is connected to the fixing plate and is used to adjust the limiting position of the fixing plate.
8. A maintenance device for a switch machine reducer according to claim 7, characterized in that, The adjusting mechanism includes a movable sleeve, a sliding member, a drive screw, a traction rod, and a connecting rod; the movable sleeve is disposed in the mounting cavity and fixedly connected to the mounting plate; the sliding member is slidably connected to the movable sleeve; the drive screw is threadedly connected to the mounting plate, and one end of the drive screw is connected to the sliding member; one end of the traction rod is connected to the sliding member pin, and the other end of the traction rod is connected to the connecting rod pin; one end of the connecting rod is connected to the fixed plate.
9. A maintenance device for a switch machine reducer according to claim 8, characterized in that, One end of the drive screw is provided with an adjustment handle.
10. A maintenance device for a switch machine reducer according to any one of claims 1 to 9, characterized in that, The disassembly and assembly device is a hydraulic press.