Shell easy to disassemble and assemble for speed reducer

Abstract

The utility model provides a speed reducer shell easy to disassemble and assemble, which comprises a lower shell and an upper shell, the upper end of the lower shell is provided with a first end face, the lower end of the upper shell is provided with a second end face, the lower shell is provided with a wheel groove, the wheel groove penetrates through the first end face, the lower shell is rotatably connected with a wheel shaft, the wheel shaft is connected with a top pressing wheel, and the top pressing wheel is located in the wheel groove; rotating handles are arranged at one ends of the wheel shafts; a first contour surface and a second contour surface are arranged in the circumferential direction of the jacking wheel, the distance between the first contour surface and the center of the jacking wheel is smaller than the distance between the first end face and the center of the jacking wheel, and the maximum distance between the second contour surface and the center of the jacking wheel is larger than the distance between the first end face and the center of the jacking wheel. When the speed reducer shell is disassembled, the upper shell and the lower shell can be easily separated through rotation of the jacking wheel, the shell does not need to be knocked by a hammer, and damage caused by the shell is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to an easily detachable housing for reducers. Background Art

[0002] Existing reducers usually include a housing, a mounting cavity is provided in the housing, and components such as gears and gear shafts are installed in the mounting cavity. The housing is composed of a lower housing and an upper housing, and the lower housing and the upper housing are connected by bolts. This housing structure can be easily disassembled and opened, and it is convenient to replace internal components such as gears.

[0003] In order to achieve the seal between the upper shell and the lower shell, a circle of sealant is usually applied at the connection between the upper shell and the lower shell during the assembly process. This can prevent external dust and liquid from entering the shell, and also prevent the lubricating oil inside the reducer from leaking out from the gap between the upper shell and the lower shell.

[0004] However, when the sealant solidifies, it will adhere the upper shell and the lower shell together, causing certain difficulties in disassembling the lower shell and the upper shell. The traditional method is to first remove the bolts between the upper shell and the lower shell, then hit the upper shell with a hammer to loosen the bonded part between the upper shell and the lower shell, destroy the bonding layer between the upper shell and the lower shell, and finally separate the upper shell from the lower shell.

[0005] The above-mentioned disassembly method requires the use of a hammer to knock on the upper shell. If the hammer is not struck with the right force, it is easy to cause certain damage to the shell, resulting in defects such as fine cracks on the upper shell. Summary of the invention

[0006] The utility model aims to solve the deficiencies in the prior art and provide an easily detachable housing for a reducer.

[0007] The purpose of the utility model is achieved through the following technical solutions: an easily detachable housing for a reducer, comprising a lower housing and an upper housing, the upper end of the lower housing is provided with a first end face, the lower end of the upper housing is provided with a second end face, the lower housing is provided with a wheel groove, the wheel groove passes through the first end face, the lower housing is rotatably connected with a wheel axle, the wheel axle is connected with a top pressure wheel, and the top pressure wheel is located in the wheel groove; a rotating handle is provided at one end of the wheel axle;

[0008] A first contour surface and a second contour surface are provided on the circumference of the top pressure wheel. The distance between the first contour surface and the center of the top pressure wheel is smaller than the distance between the first end surface and the center of the top pressure wheel. The maximum distance between the second contour surface and the center of the top pressure wheel is greater than the distance between the first end surface and the center of the top pressure wheel.

[0009] When the utility model is disassembling and separating the lower shell and the upper shell, the operator holds and rotates the rotating handle, and the rotating handle drives the top pressure wheel to rotate when rotating. During the rotation of the top pressure wheel, when the second contour surface on the top pressure wheel rotates to the upper end position of the top pressure wheel, since the maximum distance between the second contour surface and the center of the top pressure wheel is greater than the distance between the first end surface and the center of the top pressure wheel, the second contour surface will be higher than the first end surface on the lower shell, and the second contour surface will contact the second end surface on the upper shell, and the top pressure wheel will push the upper shell upward for a certain distance, thereby pushing the upper shell open and disengaging the connection between the upper shell and the lower shell, so that the upper shell can be easily separated from the lower shell, which is convenient for the disassembly of the reducer housing. When the utility model is disassembling the reducer housing, the upper shell and the lower shell can be easily separated by rotating the top pressure wheel, without the need to use a hammer to knock the shell, thereby reducing the damage caused to the shell.

[0010] Preferably, both the first contour surface and the second contour surface are arc surfaces.

[0011] Preferably, a first axial hole is provided on one side of the wheel groove, and a second axial hole is provided on the other side of the wheel groove, and the first axial hole and the second axial hole are arranged coaxially; the wheel axle is connected to the first axial hole and the second axial hole at the same time; a sleeve is provided between the wheel axle and the inner wall of the first axial hole; a center hole is provided at the center of the top pressure wheel, the wheel axle passes through the center hole, and the wheel axle and the center hole are interference fit.

[0012] Preferably, the sleeve is made of nylon material.

[0013] Preferably, a mounting hole is provided at the bottom of the lower shell.

[0014] Preferably, the lower shell is provided with a first bolt hole, and the upper shell is provided with a second bolt hole corresponding to the first bolt hole.

[0015] The beneficial effect of the utility model is that when the reducer housing is disassembled, the upper housing and the lower housing can be easily separated by rotating the top pressure wheel, without the need to knock the housing with a hammer, thereby reducing damage to the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model

[0017] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0018] Figure 3 It is a partial cross-sectional view at the position of the top pressure wheel.

[0019] Figure 4 It is a structural schematic diagram of the top pressure wheel.

[0020] In the figure: 1, lower shell, 2, upper shell, 3, first bolt hole, 4, second bolt hole, 5, sealant, 6, oil filling hole, 7, mounting hole, 8, rotating handle, 9, top pressure wheel, 9a, center hole, 9b, first contour surface, 9c, second contour surface, 10, wheel groove, 11, wheel axle, 12, bushing. DETAILED DESCRIPTION

[0021] 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 belong to the scope of protection of the utility model.

[0022] like Figures 1 to 4 As shown, an easily detachable housing for a reducer includes a lower shell 1 and an upper shell 2. The upper end of the lower shell 1 is provided with a first end face, and the lower end of the upper shell 2 is provided with a second end face. The lower shell 1 is provided with a wheel groove 10, and the wheel groove 10 passes through the first end face. The lower shell 1 is rotatably connected to a wheel axle 11, and the wheel axle 11 is connected to a top pressure wheel 9, and the top pressure wheel 9 is located in the wheel groove 10; a rotating handle 8 is provided at one end of the wheel axle 11.

[0023] A first contour surface 9b and a second contour surface 9c are provided on the circumference of the pressing wheel 9. The distance between the first contour surface 9b and the center of the pressing wheel 9 is smaller than the distance between the first end surface and the center of the pressing wheel 9. The maximum distance between the second contour surface 9c and the center of the pressing wheel 9 is greater than the distance between the first end surface and the center of the pressing wheel 9.

[0024] When the utility model disassembles and separates the lower shell 1 and the upper shell 2, the operator holds and rotates the rotating handle 8, and the rotating handle 8 drives the top pressing wheel 9 to rotate when rotating. During the rotation of the top pressing wheel 9, when the second contour surface 9c on the top pressing wheel 9 rotates to the upper end position of the top pressing wheel 9, since the maximum distance between the second contour surface 9c and the center of the top pressing wheel 9 is greater than the distance between the first end surface and the center of the top pressing wheel 9, the second contour surface 9c will be higher than the first end surface on the lower shell 1, and the second contour surface 9c will contact the second end surface on the upper shell 2, and the top pressing wheel 9 will push the upper shell 2 upward for a certain distance, so as to push the upper shell 2 open, so that the connection between the upper shell 2 and the lower shell 1 is disengaged, so that the upper shell 2 can be easily separated from the lower shell 1, which is convenient for the disassembly of the reducer housing. When the utility model disassembles the reducer housing, the upper shell 2 and the lower shell 1 can be easily separated by rotating the top pressing wheel 9, without the need to knock the housing with a hammer, thereby reducing the damage caused by the housing.

[0025] It is worth mentioning that there are two pressing wheels 9, which are respectively arranged on both sides of the upper end of the lower shell 1. When the upper and lower shells 1 are disassembled, the upper shell 2 and the lower shell 1 can be separated by rotating the pressing wheels 9 on both sides at the same time.

[0026] Specifically, the first contour surface 9b and the second contour surface 9c are both arc surfaces. The arc center of the first contour surface 9b coincides with the center of the top pressing wheel 9, and the distance from any position on the first contour surface 9b to the center of the top pressing wheel 9 is equal, and the distance is smaller than the distance between the first end surface and the center of the top pressing wheel 9. The second contour surface 9c is an arc surface convex toward the outside of the top pressing wheel 9, and the two ends of the second contour surface 9c are connected to the first contour surface 9b, and the middle position of the second contour surface 9c is the highest point, and the distance from the middle position of the second contour surface 9c to the center of the top pressing wheel 9 is the largest.

[0027] A first axial hole is provided on one side of the wheel groove 10, and a second axial hole is provided on the other side of the wheel groove 10, and the first axial hole and the second axial hole are arranged coaxially; the wheel axle 11 is connected to the first axial hole and the second axial hole at the same time; a shaft sleeve 12 is provided between the wheel axle 11 and the inner wall of the first axial hole, and the wheel axle can rotate in the first axial hole. There is a clearance fit between the wheel axle 11 and the second axial hole, so that the wheel axle 11 can rotate in the second axial hole. A center hole 9a is provided at the center of the top pressure wheel 9, and the wheel axle 11 passes through the center hole 9a, and the wheel axle 11 and the center hole 9a have an interference fit.

[0028] In this embodiment, the shaft sleeve 12 is made of nylon material.

[0029] The lower shell 1 is provided with a first bolt hole 3, and the upper shell 2 is provided with a second bolt hole 4 corresponding to the first bolt hole 3. The upper shell 2 and the lower shell 1 are connected by bolts.

[0030] When the upper shell is connected to the lower shell, the oil sealant 5 is applied to the first end surface of the upper shell.

[0031] The lower housing 1 is provided with an oil filling hole 6, and an oil filling valve is provided in the oil filling hole 6. Lubricating oil can be filled into the lower housing 1 through the oil filling hole 6.

[0032] A mounting hole 7 is provided at the bottom of the lower housing 1 .

[0033] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. An easily detachable housing for a reducer, characterized in that: It comprises a lower shell and an upper shell, the upper end of the lower shell is provided with a first end face, the lower end of the upper shell is provided with a second end face, the lower shell is provided with a wheel groove, the wheel groove passes through the first end face, the lower shell is rotatably connected with a wheel axle, the wheel axle is connected with a pressing wheel, and the pressing wheel is located in the wheel groove; one end of the wheel axle is provided with a rotating handle; A first contour surface and a second contour surface are provided on the circumference of the top pressure wheel. The distance between the first contour surface and the center of the top pressure wheel is smaller than the distance between the first end surface and the center of the top pressure wheel. The maximum distance between the second contour surface and the center of the top pressure wheel is greater than the distance between the first end surface and the center of the top pressure wheel.

2. The easily detachable housing for a reducer according to claim 1, characterized in that: The first contour surface and the second contour surface are both arc surfaces.

3. The easily detachable housing for a reducer according to claim 1, characterized in that: A first axial hole is provided on one side of the wheel groove, and a second axial hole is provided on the other side of the wheel groove, and the first axial hole and the second axial hole are arranged coaxially; the wheel axle is connected to the first axial hole and the second axial hole at the same time; a shaft sleeve is provided between the wheel axle and the inner wall of the first axial hole; a center hole is provided in the center of the top pressure wheel, and the wheel axle passes through the center hole, and the wheel axle and the center hole are interference fit.

4. The easily detachable housing for a reducer according to claim 3, characterized in that: The shaft sleeve is made of nylon material.

5. The easily detachable housing for a reducer according to claim 1, characterized in that: The lower shell body is provided with an oil filling hole.

6. The easily detachable housing for a reducer according to claim 1, characterized in that: The bottom of the lower shell is provided with a mounting hole.

7. The easily detachable housing for a reducer according to claim 1, characterized in that: The lower shell is provided with a first bolt hole, and the upper shell is provided with a second bolt hole corresponding to the first bolt hole.

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