Planet gear speed reducer convenient to disassemble

Abstract

The utility model relates to the technical field of planet gear speed reducers, and discloses a planet gear speed reducer convenient to disassemble, which comprises a shell, a sliding groove is arranged inside the middle end of the shell, a switch assembly convenient to maintain is connected inside the sliding groove in a sliding mode, two friction strips are fixedly connected inside the sliding groove, and the friction strips are fixedly connected with the shell. The device comprises a shell, mounting covers are detachably connected to the left side and the right side of the shell, a plurality of fixing columns are fixedly connected to the interiors of the mounting covers, auxiliary blocks are fixedly connected to the sides, away from each other, of the fixing columns, sliding rods are slidably connected to the inner walls of the fixing columns, and limiting plates are fixedly connected to one sides of the exteriors of the sliding rods. A first strong spring is arranged outside the sliding rod. According to the utility model, the clamping ball has enough movement space, so that the sealing cover can be quickly opened, the tedious operation of screwing a bolt and a nut by using a tool is not needed, and the time for maintaining the internal structure of the speed reducer is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary gear reducers, in particular to a planetary gear reducer which is convenient to disassemble. Background Technique

[0002] A planetary gear reducer is a common mechanical transmission device, which has a compact structure, high transmission efficiency and large load-bearing capacity. The planetary gear reducer mainly consists of a sun gear, planetary gears, a planetary carrier and a ring gear. Its working principle is: power is input from the sun gear, and through the revolution and rotation of the planetary gears, the power is transmitted to the ring gear and finally output. This reducer has many advantages. First of all, it can achieve a large transmission ratio and achieve a large deceleration effect in a smaller space. Secondly, since multiple planetary gears share the load at the same time, its load-bearing capacity is relatively high and it can withstand large torque and impact loads. Moreover, its transmission efficiency is usually relatively high and the energy loss is relatively small.

[0003] In the prior art, when internal components of some reducers fail or need regular maintenance, workers need to disassemble the cover and the housing to maintain the internal structure. Most of the disassembly of the cover and the housing is carried out by using tools to disassemble bolts and nuts. This not only makes the operation cumbersome, but also increases the maintenance time and the working intensity of the workers. Therefore, in view of the above deficiencies, a planetary gear reducer which is convenient to disassemble is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a planetary gear reducer which is convenient to disassemble, aiming to improve the problem that the operation is cumbersome, time-consuming and laborious when maintaining the reducer in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A planetary gear reducer which is convenient to disassemble includes a housing. A sliding groove is opened inside the middle end of the housing. A switch assembly which is convenient for maintenance is slidably connected inside the sliding groove. Two friction strips are fixedly connected inside the sliding groove. The left and right sides of the housing are detachably connected with mounting covers. A plurality of fixing columns are fixedly connected inside the mounting covers. Auxiliary blocks are fixedly connected to the far sides of the plurality of fixing columns. A sliding rod is slidably connected to the inner wall of the fixing column. A limiting plate is fixedly connected to one side of the outer part of the sliding rod. A first strong spring is arranged on the outer part of the sliding rod. An activity hole is opened on the other side of the outer part of the sliding rod. Connecting columns are fixedly connected to the adjacent sides of the plurality of fixing columns. A sliding hole is opened on one side of the connecting column. Two clamping balls are movably connected inside the connecting column. Sealing rings are fixedly connected to the left and right sides of the housing.

[0007] Furthermore, a rotating shaft is fixedly connected inside the mounting cover. On one side inside the mounting cover, a plurality of telescopic rods are fixedly connected. A strong spring two is sleeved outside the telescopic rods. On the far sides of the plurality of telescopic rods, two connecting rings are fixedly connected. On one side of the connecting ring, a stationary ring is fixedly connected. On the adjacent sides of the two rotating shafts, a moving ring is fixedly connected.

[0008] Furthermore, the switch assembly includes a sliding cover. The outside of the sliding cover is slidably connected inside the sliding groove. A handle is fixedly connected to the outside of the sliding cover. The outside of the sliding cover is in contact with the adjacent sides of the two friction strips.

[0009] Furthermore, a plurality of support legs are fixedly connected to the bottom end of the housing. The outside of the limiting plate is slidably connected inside the fixed column. One side of the auxiliary block is in contact with one side of the mounting cover.

[0010] Furthermore, one end of the strong spring one is fixedly connected to one side inside the fixed column, and the other end of the strong spring one is fixedly connected to one side of the limiting plate.

[0011] Furthermore, the outside of the sliding rod is slidably connected inside the sliding hole, and the inside of the moving hole is in contact with the outside of the engaging ball.

[0012] Furthermore, the outside of the connecting column is slidably connected inside one side of the housing, and the outside of the engaging ball is engaged with the inside of one side of the housing.

[0013] Furthermore, the outside of the stationary ring is in contact with the outside of the moving ring, and the outside of the connecting ring is slidably connected inside the mounting cover.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, by pressing the sliding rod, the moving hole slides, so that the engaging ball has enough movement space, which can quickly open the sealing cover without the cumbersome operation of using tools to screw bolts and nuts, greatly shortening the time required for maintaining the internal structure of the speed reducer.

[0016] 2. In the utility model, under the elastic support of the strong spring two, the stationary ring and the moving ring are tightly connected, avoiding the loss of lubricating oil and the entry of impurities, maintaining the matching accuracy between the rotating shaft and the mounting cover, thereby improving the accuracy and stability of transmission, and also ensuring the service life of the stationary ring and the moving ring. Description of the Drawings

[0017] Figure 1 is a three-dimensional view of a planetary gear speed reducer that is easy to disassemble proposed by the utility model;

[0018] Figure 2 is Figure 1 the enlarged view of part A in

[0019] Figure 3 is the schematic structural view of the sliding cover of a planetary gear speed reducer that is easy to disassemble proposed by the present utility model;

[0020] Figure 4 is Figure 3 the enlarged view of part B in

[0021] Figure 5 is the schematic structural view of the housing of a planetary gear speed reducer that is easy to disassemble proposed by the present utility model;

[0022] Figure 6 is Figure 5 the enlarged view of part C in

[0023] Legend description:

[0024] 1. Housing; 2. Sliding groove; 3. Sliding cover; 4. Friction strip; 5. Handle; 6. Support leg; 7. Mounting cover; 8. Fixed column; 9. Auxiliary block; 10. Sliding rod; 11. Limiting plate; 12. First strong spring; 13. Moving hole; 14. Connecting column; 15. Sliding hole; 16. Engaging ball; 17. Sealing ring; 18. Rotating shaft; 19. Telescopic rod; 20. Second strong spring; 21. Connecting ring; 22. Stationary ring; 23. Moving ring. Specific implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Refer to Figure 1 – Figure 3, an embodiment provided by the present utility model: a planetary gear reducer that is easy to disassemble, including a housing 1 that can provide reliable protection for internal components and effectively resist external impacts and interferences. A sliding groove 2 is opened inside the middle end of the housing 1. The design of this sliding groove 2 aims to provide a smooth channel for subsequent sliding operations, greatly improving the convenience of operation. A switch assembly that is easy to maintain is slidably connected inside the sliding groove 2. This assembly can significantly simplify the maintenance process and reduce maintenance costs. The switch assembly includes a sliding cover 3. The outside of the sliding cover 3 is slidably and smoothly connected inside the sliding groove 2, ensuring easy and flexible movement during operation. A handle 5 that is convenient to grip and saves effort is firmly fixed to the outside of the sliding cover 3, enabling the operator to apply force easily and quickly complete the sliding operation. The outside of the sliding cover 3 is in close contact with the adjacent sides of two friction strips 4 with excellent friction control effects, so as to effectively control the stopping position of the sliding cover 3 and ensure that it will not slide accidentally during maintenance. Two friction strips 4 are fixedly connected inside the sliding groove 2. A plurality of strong and powerful support legs 6 are neatly fixed to the bottom end of the housing 1, providing stable support for the entire reducer and ensuring no shaking or tilting during operation. The left and right sides of the housing 1 are connected with mounting covers 7 through a convenient and reliable detachable connection method. This connection method not only facilitates the disassembly and installation of components but also is conducive to quick internal inspection and part replacement.

[0027] Refer to Figure 3 - Figure 4 , a plurality of fixing columns 8 are fixedly connected inside the mounting cover 7. Auxiliary blocks 9 are fixedly connected to the opposite sides of the plurality of fixing columns 8. One side of the auxiliary block 9 is in contact with one side of the mounting cover 7. A sliding rod 10 is slidably connected to the inner wall of the fixing column 8, enabling the sliding rod 10 to slide flexibly and accurately, ensuring the high efficiency of disassembly and installation. A limiting plate 11 is fixedly connected to the outside of one side of the sliding rod 10 to ensure the smoothness and accuracy of the sliding process. The outside of the limiting plate 11 is slidably connected inside the fixing column 8. A first strong spring 12 is provided on the outside of the sliding rod 10, which can quickly return to its original state after operation, providing continuous power support for repeated disassembly and installation. One end of the first strong spring 12 is fixedly connected to the inner side of one side of the fixing column 8;

[0028] The other end of the strong spring 12 is fixedly connected to one side of the limit plate 11, ensuring the stability and reliability of the spring action. On the other side of the outside of the sliding rod 10, an activity hole 13 is provided. On the adjacent sides of multiple fixed columns 8, connection columns 14 are fixedly connected. The outside of the connection column 14 is slidably connected to the inside of one side of the housing 1. A sliding hole 15 is provided on one side of the connection column 14. The outside of the sliding rod 10 is slidably connected to the inside of the sliding hole 15. Two engaging balls 16 are movably connected inside the connection column 14. The outside of the engaging ball 16 is engaged with the inside of one side of the housing 1, ensuring the firmness and stability of the connection between the mounting cover 7 and the housing 1. The inside of the activity hole 13 is in contact with the outside of the engaging ball 16. Sealing rings 17 are fixedly connected to both the left and right sides of the housing 1, which can effectively prevent dust, impurities, liquids, etc. from entering the reducer, ensuring the normal operation and service life of the reducer.

[0029] Refer to Figure 5 - Figure 6 Inside the mounting cover 7, a rotating shaft 18 is fixedly connected to ensure that the rotating shaft 18 can smoothly transmit power during operation, reducing energy loss. On one side inside the mounting cover 7, multiple telescopic rods 19 are fixedly connected. A strong spring two 20 is sleeved outside the telescopic rods 19 to provide stable support and reset force, ensuring the stable operation of the equipment. On the opposite sides of multiple telescopic rods 19, two connection rings 21 are fixedly connected, enabling the connection rings 21 to maintain a stable movement state during work. The outside of the connection rings 21 is slidably connected inside the mounting cover 7, reducing the frictional resistance, improving the work efficiency and service life. On one side of the connection rings 21, a static ring 22 with good sealing performance is firmly fixedly connected, effectively preventing the leakage of internal substances. On the adjacent sides of two rotating shafts 18, a dynamic ring 23 with excellent wear resistance is fixedly connected, extending the service life of the dynamic ring 23 and reducing the maintenance cost. The outside of the static ring 22 is in contact with the outside of the dynamic ring 23, forming a reliable sealing structure, effectively preventing the intrusion of external impurities and the leakage of internal substances, ensuring the normal operation and stable performance of the reducer.

[0030] Working principle: When it is necessary to detect and maintain the internal structure of the planetary gear reducer, the handle 5 can be pulled, thereby driving the sliding cover 3 to smoothly slide inside the sliding groove 2. Then, the sliding cover 3 will be stably maintained at the pulled position under the increased frictional force of the friction strip 4. This design facilitates small-scale maintenance operations on the internal structure.

[0031] For example, when it is necessary to quickly check the surface condition of some internal components, check whether the connection lines are loose, etc., for simple maintenance work, it can be easily achieved by pulling the sliding cover 3.

[0032] When large-scale overhaul and maintenance are required, the installation cover 7 can be removed accordingly. First, press the sliding rod 10. Under the pressing action of the sliding rod 10, the limiting plate 11 will be driven to slide inside the fixed column 8. During this process, the first powerful spring 12 will be compressed and contract, and at the same time, the moving hole 13 will also slide accordingly. In this way, the engaging ball 16 will obtain more moving space, enabling it to fall off from the inside of the connecting column 14 and releasing the fixed connection between the installation cover 7 and the housing 1. Subsequently, pull the fixed column 8 so that the connecting column 14 slides outwards from the inside of the housing 1, and finally complete the removal operation of the installation cover 7.

[0033] The entire process only requires manual operation, completely avoiding the cumbersome steps brought by taking tools. This convenient design greatly improves the efficiency of overhaul and maintenance. Especially in emergency situations, it can quickly open the speed reducer to comprehensively inspect and repair the internal structure.

[0034] During installation, the compression force previously received by the first powerful spring 12 will be transformed into a powerful resilience force. This resilience force will push the engaging ball 16 to slide out from the inside of the moving hole 13, making it return to its initial position and re-engage with the inside of the housing 1, thus successfully completing the installation of the housing 1 and the installation cover 7.

[0035] When installing the rotating shaft 18, in order to ensure the fitting accuracy between the rotating shaft 18 and the installation cover 7, the rotating shaft 18 drives the moving ring 23 to be in close contact with the static ring 22. During the process of the moving ring 23 and the static ring 22 coming into contact with each other, effective sealing of the device is achieved through their elasticity.

[0036] However, after long-term use, due to continuous friction and pressure, the elasticity between the moving ring 23 and the static ring 22 may gradually decrease. At this time, the elastic support of the second powerful spring 20 plays an important role. The elasticity of the second powerful spring 20 can make the connecting ring 21 drive the static ring 22 to always remain in close contact with the moving ring 23.

[0037] For example, in a harsh working environment or during long-term high-load operation, the second powerful spring 20 can continuously provide stable pressure to ensure that the sealing effect is not affected.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A planetary gear reducer that is convenient for disassembly, comprising a housing (1), characterized in that: A sliding groove (2) is formed inside the middle end of the housing (1). A switch assembly for easy maintenance is slidably connected inside the sliding groove (2). Two friction strips (4) are fixedly connected inside the sliding groove (2). The left and right sides of the housing (1) are detachably connected with mounting covers (7). A plurality of fixing columns (8) are fixedly connected inside the mounting covers (7). Auxiliary blocks (9) are fixedly connected to the far sides of the plurality of fixing columns (8). A sliding rod (10) is slidably connected to the inner wall of the fixing column (8). A limiting plate (11) is fixedly connected to one side of the outer part of the sliding rod (10). A first strong spring (12) is provided on the outer part of the sliding rod (10). An activity hole (13) is provided on the other side of the outer part of the sliding rod (10). Connecting columns (14) are fixedly connected to the near sides of the plurality of fixing columns (8). A sliding hole (15) is provided on one side of the connecting column (14). Two engaging balls (16) are movably connected inside the connecting column (14). Sealing rings (17) are fixedly connected to the left and right sides of the housing (1).

2. The planetary gear speed reducer according to claim 1, wherein: A rotating shaft (18) is fixedly connected inside the mounting cover (7). A plurality of telescopic rods (19) are fixedly connected to one side inside the mounting cover (7). A second strong spring (20) is sleeved on the outer part of the telescopic rod (19). Two connecting rings (21) are fixedly connected to the far sides of the plurality of telescopic rods (19). A static ring (22) is fixedly connected to one side of the connecting ring (21). A moving ring (23) is fixedly connected to the near sides of the two rotating shafts (18).

3. The planetary gear speed reducer according to claim 1, characterized in that: The switch assembly includes a sliding cover (3). The outer part of the sliding cover (3) is slidably connected inside the sliding groove (2). A handle (5) is fixedly connected to the outer part of the sliding cover (3). The outer part of the sliding cover (3) is in contact with the near sides of the two friction strips (4).

4. A planetary gear speed reducer that is easy to disassemble according to claim 1, characterized in that: A plurality of support legs (6) are fixedly connected to the bottom end of the housing (1). The outer part of the limiting plate (11) is slidably connected inside the fixing column (8). One side of the auxiliary block (9) is in contact with one side of the mounting cover (7).

5. A planetary gear speed reducer that is easy to disassemble according to claim 1, characterized in that: One end of the first strong spring (12) is fixedly connected to one side inside the fixing column (8), and the other end of the first strong spring (12) is fixedly connected to one side of the limiting plate (11).

6. The planetary gear speed reducer according to claim 1, wherein: The outer part of the sliding rod (10) is slidably connected inside the sliding hole (15), and the outer part of the engaging ball (16) is in contact with the inside of the activity hole (13).

7. The planetary gear reducer according to claim 1, wherein: The outer part of the connecting column (14) is slidably connected to the inside of one side of the housing (1), and the outer part of the engaging ball (16) is engaged with the inside of one side of the housing (1).

8. The planetary gear speed reducer according to claim 2, wherein: The outer part of the static ring (22) is in contact with the outer part of the moving ring (23), and the outer part of the connecting ring (21) is slidably connected inside the mounting cover (7).

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