Device for quickly disassembling damaged bearing of gearbox

Abstract

The utility model relates to a device for quickly disassembling a damaged bearing of a gearbox, which comprises a mounting plate, at least three groups of pull rod connecting pieces and a pushing mechanism, the pushing mechanism is arranged in the middle of the mounting plate, one side of the mounting plate is provided with a pushing block connected with the pushing mechanism, and the other side of the mounting plate is provided with a bearing. The at least three groups of pull rod connecting pieces are respectively arranged on the mounting plate and are uniformly distributed on the periphery of the top block at intervals, the pull rod connecting pieces are respectively used for being connected with a bearing, and the pushing mechanism is used for driving the top block to push a shaft assembled in an inner ring of the bearing. The device has the advantages that it can be ensured that a damaged bearing can be taken out by removing a crawler belt on one side and an axle tube sub-assembly in the market maintenance process, the difficulty in the disassembly process of the axle tube sub-assembly of the half axle is solved, the market maintenance time is shortened, the labor intensity of maintenance personnel is reduced, rapid disassembly and rapid maintenance can be achieved, and the maintenance efficiency is improved. The fault downtime and the maintenance labor cost are greatly reduced, and the product competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery equipment maintenance, in particular to a device for quickly disassembling a damaged bearing of a gearbox. Background Technique

[0002] The gearbox of a crawler rice harvester is one of the important transmission components of the harvester. Its main function is to control the speed and steering of the whole machine through speed change, so as to adapt to different operating conditions and different working terrains.

[0003] At present, when the bearing of the gearbox of a crawler rice harvester is damaged, it is necessary to disassemble the crawlers on both sides, which has potential safety hazards and secondary quality failure problems. Moreover, using this method for maintenance has disadvantages such as frequent occurrence of faults after maintenance and low maintenance efficiency.

[0004] Based on this, it is necessary to develop a device for quickly disassembling a damaged bearing of a gearbox to overcome the above technical problems. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a device for quickly disassembling a damaged bearing of a gearbox, which effectively overcomes the defects of the prior art.

[0006] The technical solution of the utility model for solving the above technical problems is as follows:

[0007] A device for quickly disassembling a damaged bearing of a gearbox includes a mounting plate, at least three groups of tie rod connectors and a pushing mechanism. The above-mentioned pushing mechanism is installed in the middle of the above-mentioned mounting plate. A top block connected to the above-mentioned pushing mechanism is provided on one side of the above-mentioned mounting plate. At least three groups of the above-mentioned tie rod connectors are respectively installed on the above-mentioned mounting plate and are evenly spaced around the above-mentioned top block. The above-mentioned tie rod connectors are respectively used to connect with the bearing, and the above-mentioned pushing mechanism is used to drive the top block to push the shaft assembled in the inner ring of the bearing.

[0008] On the basis of the above technical solution, the utility model can also be improved as follows.

[0009] Further, the above-mentioned pushing mechanism includes a screw rod, the screw rod vertically penetrates the middle of the above-mentioned mounting plate and is threadedly engaged with the above-mentioned mounting plate, and a top block is fixed to one end of the screw rod.

[0010] Further, a through hole is opened in the middle of the above-mentioned mounting plate, and a positioning nut adapted to the above-mentioned screw rod is fixed on the other side of the above-mentioned mounting plate. The screw rod penetrates the positioning nut and the through hole and is threadedly engaged with the positioning nut.

[0011] Further, a channel vertically penetrating it is provided at the other end of the above-mentioned screw rod, and a handle rod is inserted into the channel.

[0012] Further, the above-mentioned pushing mechanism is one of a hydraulic jack, a hydraulic cylinder, an electric cylinder, and an electric push rod.

[0013] Further, the above-mentioned top block is a cylindrical block.

[0014] Further, the above-mentioned pull rod connecting member includes a pull rod, a locking structure, and a clamping portion. The above-mentioned pull rod vertically penetrates the above-mentioned mounting plate. One end of the above-mentioned pull rod is connected with the above-mentioned clamping portion. The above-mentioned clamping portion is used to be embedded between the inner ring and the outer ring of the bearing and clamped between the inner and outer rings. The above-mentioned locking structure is connected to the other end of the above-mentioned pull rod and is used to be locked and fixed with the above-mentioned mounting plate or unlocked so that the above-mentioned pull rod can move relative to the above-mentioned mounting plate. At least three of the above-mentioned pull rods are distributed around the above-mentioned top block and fall on the same circumference.

[0015] Further, a short column with a cross-sectional area smaller than that of the pull rod is coaxially provided at the other end of the above-mentioned pull rod, and the above-mentioned clamping portion is provided at the end of the short column.

[0016] Further, the above-mentioned clamping portion is a flat cylindrical member, the outer edge of which is fixedly connected to the end of the above-mentioned short column, and both sides of the above-mentioned clamping portion are flush with both sides of the above-mentioned short column.

[0017] Further, the above-mentioned locking structure includes two locking nuts. The other end of the above-mentioned pull rod is provided as a threaded section. The two above-mentioned locking nuts are respectively screwed onto the other end of the above-mentioned pull rod and are distributed on both sides of the above-mentioned mounting plate. The two above-mentioned locking nuts are used to be screwed in until they abut against or separate from the above-mentioned mounting plate.

[0018] The beneficial effects of the present utility model are as follows: The structure design is simple and reasonable. Using this device can ensure that during the market maintenance process, the damaged bearing can be taken out by removing one side of the crawler and the axle tube sub-assembly, solving the difficulties in the disassembly process of the half-axle tube sub-assembly, shortening the market maintenance time, reducing the labor intensity of maintenance personnel, enabling rapid disassembly and rapid maintenance, greatly reducing the fault downtime and maintenance labor cost, and improving the competitiveness of the product. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the device for quickly disassembling a damaged bearing of a gearbox according to the present utility model;

[0020] Figure 2 is a front structural diagram of the pull rod in the device for quickly disassembling a damaged bearing of a gearbox according to the present utility model;

[0021] Figure 3 is a side structural diagram of the pull rod in the device for quickly disassembling a damaged bearing of a gearbox according to the present utility model.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Mounting plate; 2. Tie rod connector; 3. Thrust mechanism; 4. Thrust block; 21. Tie rod; 22. Locking structure; 23. Engaging part; 31. Screw; 32. Locking nut; 211. Short column. Detailed implementation mode

[0024] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples cited are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0025] Example: As Figure 1 shown, the device for quickly disassembling a damaged bearing of a gearbox in this embodiment includes a mounting plate 1, at least three groups of tie rod connectors 2, and a thrust mechanism 3. The above-mentioned thrust mechanism 3 is installed in the middle of the above-mentioned mounting plate 1. A thrust block 4 connected to the above-mentioned thrust mechanism 3 is provided on one side of the above-mentioned mounting plate 1. At least three groups of the above-mentioned tie rod connectors 2 are respectively installed on the above-mentioned mounting plate 1 and are evenly spaced around the above-mentioned thrust block 4. The above-mentioned tie rod connectors 2 are respectively used to connect with the bearing, and the above-mentioned thrust mechanism 3 is used to drive the thrust block 4 to push the shaft assembled in the inner ring of the bearing.

[0026] During the use of the device for quickly disassembling a damaged bearing of a gearbox in this embodiment, the crawler and the bridge pipe sub-assembly on one side of the crawler type rice transplanter are removed, and then the whole device is placed on the side of the bearing to be removed. At least three groups of tie rod connectors 2 are respectively connected to the bearing (designated as A in the figure). The thrust mechanism 3 is adjusted to push the thrust block 4 against the shaft (the end of the half-axle bridge pipe) in the middle of the bearing. Since the cross-sectional area of the thrust block 4 is smaller than the area of the inner ring of the bearing, when the thrust mechanism 3 is operated to push the above-mentioned thrust block 4, at least three groups of tie rod connectors 2 will move relative to the thrust block 4 towards the direction of the thrust mechanism 3 and the mounting plate 1, applying a "pulling" effect on the bearing relative to the half-axle bridge pipe, and realizing the removal of the bearing. The overall structure of the device is simple. Using this device can ensure that the damaged bearing can be removed by removing the crawler and the bridge pipe sub-assembly on one side during the market maintenance process, solving the difficulties in the disassembly process of the half-axle bridge pipe sub-assembly, shortening the market maintenance time, reducing the labor intensity of maintenance personnel, enabling quick disassembly and quick repair, greatly reducing the fault downtime and maintenance labor cost, and improving the competitiveness of the product.

[0027] It should be supplemented and explained that in this embodiment, at least three groups of tie rod connectors 2 are connected to at least three spaced points in the circumferential direction of the bearing, so that the "pulling" force applied to the bearing is relatively uniform.

[0028] As a preferred implementation mode, the above-mentioned thrust mechanism 3 includes a screw 31. The above-mentioned screw 31 vertically penetrates the middle of the above-mentioned mounting plate 1 and is threadedly engaged with the above-mentioned mounting plate 1. One end of the above-mentioned screw 31 is fixed with the above-mentioned thrust block 4.

[0029] In the above embodiments, during operation, the screw rod 31 is rotated, and the screw rod 31 can be screwed into the mounting plate 1. While screwing in, the top block 4 can be pushed to move along the axial direction of the screw rod 31. During the movement, since the top block 4 abuts against the shaft end, at least three sets of tie rod connectors 2 can be used to "pull out" the bearing outward, so that the bearing is displaced and pulled out relative to the shaft. The operation is very simple.

[0030] In this embodiment, a through hole is formed in the middle of the above-mentioned mounting plate 1, and a positioning nut 32 adapted to the above-mentioned screw rod 31 is fixed on the other side of the above-mentioned mounting plate 1. The above-mentioned screw rod 31 passes through the above-mentioned positioning nut 32 and the through hole, and is screwed with the above-mentioned positioning nut 32. Actually, the screw rod 31 is screwed with the positioning nut 32 fixed on the other side of the mounting plate 1. After the screw rod 31 is screwed, the axial movement of the mounting plate 1 and at least three sets of tie rod connectors 2 relative to the screw rod 31 can be realized.

[0031] In this embodiment, a channel vertically penetrating the above-mentioned screw rod 31 is provided at the other end of the above-mentioned screw rod 31, and a handle rod is inserted into the above-mentioned channel. By applying torque through the handle rod, the screw rod 31 can be driven to screw into the positioning nut 32, and the operation is more convenient.

[0032] Of course, the top pushing mechanism 3 in this embodiment can also be replaced by a hydraulic jack, a hydraulic cylinder, an electric cylinder, or an electric push rod of a commercially available adapted model.

[0033] In this embodiment, the above-mentioned top block 4 is a cylindrical block. During operation, the top block 4 is coaxially distributed with the inner ring of the bearing, so as to avoid displacement interference with the bearing during the top pushing process.

[0034] As a preferred implementation manner, the above-mentioned tie rod connector 2 includes a tie rod 21, a locking structure 22, and a clamping portion 23. The above-mentioned tie rod 21 vertically penetrates the above-mentioned mounting plate 1. One end of the above-mentioned tie rod 21 is connected with the above-mentioned clamping portion 23. The above-mentioned clamping portion 23 is used to be embedded between the inner ring and the outer ring of the bearing and clamped between the inner and outer rings. The above-mentioned locking structure 22 is connected to the other end of the above-mentioned tie rod 21 and is used to be locked and fixed with the above-mentioned mounting plate 1 or unlocked so that the above-mentioned tie rod 21 can move relative to the above-mentioned mounting plate 1. At least three of the above-mentioned tie rods 21 are distributed around the above-mentioned top block 4 and fall on the same circumference.

[0035] In the above embodiments, when connecting the tie rod 21 to the bearing, the clamping portion 23 at one end of the tie rod 21 is embedded into the gap between the inner ring and the outer ring of the bearing, and the bearing is clamped by the clamping portion 23. Then, it is locked and fixed with the mounting plate 1 through the locking structure 22. After that, when the top pushing mechanism 3 is operated to push the top block 4, the tie rod 21 applies an outward pulling force to the bearing, realizing the pulling out of the bearing. The structure design of the tie rod connector 2 is simple, and the connection with the bearing is simple and fast.

[0036] In this embodiment, a short column 211 with a cross-sectional area smaller than that of the other end of the pull rod 21 is coaxially provided at the other end of the pull rod 21, and the engaging portion 23 is provided at the end of the short column 211. The design of the short column 211 facilitates the insertion of the engaging portion 23 and part of the short column 211 between the inner and outer rings of the bearing.

[0037] As a preferred embodiment, as Figure 2 and 3 shown, the engaging portion 23 is a flat cylindrical member, the outer edge of which is fixedly connected to the end of the short column 211, and both sides of the engaging portion 23 are flush with both sides of the short column 211.

[0038] In the above embodiment, during the process of operating the engaging portion 23 to extend into the gap between the inner and outer rings of the bearing and engage, since the engaging portion 23 is a flat cylindrical member, when inserting, the two flat surfaces of the engaging portion 23 face the inner ring and the outer ring of the bearing respectively, and its thickness is smaller than the gap between the inner and outer rings. The engaging portion 23 can smoothly enter the gap between the inner and outer rings. After entering, rotate the pull rod 21 by 90° so that the arc edges on both sides of the engaging portion 23 are close to or in contact with the inner walls of the cavities for installing balls between the inner and outer rings. Then, operate the locking structure 22 to lock the pull rod 21 so that it will no longer rotate. At this time, the engaging portion 23 can be effectively clamped into the gap between the inner and outer rings of the bearing. After that, operate the pushing mechanism 3 to push the shaft through the top block 4 to realize the operation of pulling out and removing the bearing. The structure design is simple, and the connection between the engaging portion 23 and the bearing is very fast and convenient.

[0039] As a preferred embodiment, the locking structure 22 includes two locking nuts. The other end of the pull rod 21 is provided as a threaded section. The two locking nuts are respectively screwed onto the other end of the pull rod 21 and are distributed on both sides of the mounting plate 1. The two locking nuts are used to screw in until they abut against or separate from the mounting plate 1.

[0040] In the above embodiment, when operating the locking, respectively turn the two locking nuts so that the two locking nuts "clamp" the mounting plate 1 on both sides. The operation is very simple and fast.

[0041] It should be added that in the device for quickly disassembling a damaged bearing of a gearbox in this embodiment, the screw rod 31 is used in cooperation with the cylindrical top block 4. The overall length is 280 mm, and the effective utilization length is 258 mm. The overall effective distance of the screw rod 31 needs to be quenched to improve the service life and reduce the wear during use. The top block 4 can be made of ordinary 45# steel, and the end of the screw rod 31 is welded to the top block 4 to ensure that its coaxiality is within 0.05 mm.

[0042] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0043] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0044] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0046] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0047] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A device for quickly disassembling a damaged gearbox bearing, characterized in that: It comprises a mounting plate (1), at least three groups of tie rod connectors (2) and a pushing mechanism (3), wherein the pushing mechanism (3) is mounted in the middle of the mounting plate (1), one side of the mounting plate (1) is provided with a pushing block (4) connected to the pushing mechanism (3), at least three groups of tie rod connectors (2) are respectively mounted on the mounting plate (1) and are evenly spaced around the pushing block (4), the tie rod connectors (2) are respectively used to connect to bearings, and the pushing mechanism (3) is used to drive the pushing block (4) to push the shaft assembled in the inner ring of the bearing.

2. The device for quickly disassembling a damaged gearbox bearing according to claim 1, characterized in that: The pushing mechanism (3) comprises a screw rod (31), the screw rod (31) vertically passes through the middle of the mounting plate (1) and is threadedly engaged with the mounting plate (1), and the push block (4) is fixed to one end of the screw rod (31).

3. The device for quickly disassembling a damaged gearbox bearing according to claim 2, characterized in that: A through hole is formed in the middle of the mounting plate (1), and a positioning nut (32) adapted to the screw rod (31) is fixed to the other side of the mounting plate (1); the screw rod (31) passes through the positioning nut (32) and the through hole, and is screwed together with the positioning nut (32).

4. The device for quickly disassembling a damaged gearbox bearing according to claim 3, characterized in that: The other end of the screw rod (31) is provided with a channel vertically penetrating therethrough, and a handle rod is passed through the channel.

5. The device for quickly disassembling a damaged gearbox bearing according to claim 1, characterized in that: The pushing mechanism (3) is a type of hydraulic jack, hydraulic cylinder, electric cylinder, or electric push rod.

6. A device for quickly disassembling a damaged gearbox bearing according to any one of claims 2 to 5, characterized in that: The top block (4) is a cylindrical block.

7. The device for quickly disassembling a damaged gearbox bearing according to claim 6, characterized in that: The tie rod connector (2) comprises a tie rod (21), a locking structure (22) and a snap-fitting portion (23). The tie rod (21) vertically passes through the mounting plate (1). One end of the tie rod (21) is connected to the snap-fitting portion (23). The snap-fitting portion (23) is used to be embedded between the inner ring and the outer ring of the bearing and snap-fit ​​between the inner and outer rings. The locking structure (22) is connected to the other end of the tie rod (21) and is used to lock and fix the tie rod with the mounting plate (1), or to unlock the tie rod (21) so that the tie rod (21) can move relative to the mounting plate (1). At least three tie rods (21) are distributed around the top block (4) and fall on the same circumference.

8. The device for quickly disassembling a damaged gearbox bearing according to claim 7, characterized in that: A short column (211) having a smaller cross-sectional area than the other end of the pull rod (21) is coaxially disposed thereon, and the engaging portion (23) is disposed at the end of the short column (211).

9. The device for quickly disassembling a damaged gearbox bearing according to claim 8, characterized in that: The engaging portion (23) is a flat cylindrical component, the outer edge of which is connected and fixed to the end of the short column (211), and the two sides of the engaging portion (23) are flush with the two sides of the short column (211).

10. The device for quickly disassembling a damaged gearbox bearing according to claim 7, characterized in that: The locking structure (22) includes two locking nuts. The other end of the pull rod (21) is set as a threaded section. The two locking nuts are respectively screwed on the other end of the pull rod (21) and distributed on both sides of the mounting plate (1). The two locking nuts are used to be screwed in until they are against or separated from the mounting plate (1).

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