Bearing structure of speed reducer

Abstract

The utility model discloses a speed reducer bearing structure, which relates to the technical field of speed reducer bearings and comprises a speed reducer part structure, a bearing main body mechanism is arranged in the speed reducer part structure, sealing mechanisms are arranged on two sides of the bearing main body mechanism, and mounting mechanisms are arranged on two sides of the bearing main body mechanism. The bearing body mechanism comprises a bearing outer ring, the outer surface of the bearing outer ring makes contact with the inner wall of the speed reducer part structure, and a bearing inner ring is arranged in the bearing outer ring. Through the cooperation of the bearing outer ring, the bearing inner ring, the first sealing gasket, the mounting groove and the second sealing gasket, the two sides of the bearing outer ring and the two sides of the bearing inner ring are sealed to form a first seal; and through cooperation of a first annular groove, a second annular groove, a baffle ring, a first large sealing ring, a first small sealing ring, a second small sealing ring and a second large sealing ring, the sealing performance of the structure is improved through multiple seals, and the effect of prolonging the service life of the bearing structure is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of reducer bearings, in particular to a reducer bearing structure. Background Art

[0002] A reducer is a power transmission mechanism that uses a gear speed converter to reduce the number of revolutions of the power source to the required number of revolutions and obtain a larger torque. The reducer bearing plays the role of supporting the rotating gear shaft or connecting rod. Reducer bearings are special bearings used in various types of reducers. Spherical roller bearings are also used in large reducers.

[0003] According to the utility model of the authorization announcement number CN220566440U, a bearing structure of a reducer is disclosed, including: a ring body, including an outer ring and an inner ring, the surface of the inner ring is movably connected with a ball, and the ball and the inner side of the outer ring are abutted and connected; a lubricating mechanism, including a protective ring, the protective ring is fitted and connected to the outer surface of the outer ring, the inner side of the protective ring is provided with an oil storage tank, the inner wall of the protective ring is fixedly connected with a plug ring, and the plug ring is plugged and connected in the connection gap between the outer ring and the inner ring. Although the device achieves the lubrication effect on the ball through the abutment connection between the lubricating ball and the ball under the connection between the plug ring and the lubricating ball, under the action of the plug column, the lubricating oil is prevented from flowing out of the oil storage tank The leakage in the bin can achieve the self-lubricating effect on the ball, improve the use effect and life of the bearing, and achieve the abutment support of the abutment plate on the ring through the connection of the support spring and the abutment plate, thereby improving its abutment support effect. However, under the action of the plug ring, the equipment realizes the sealing abutment effect on the connection between the outer ring and the inner ring. This sealing effect is poor, and a rectangular seal cannot be set between the outer ring and the inner ring to form multiple seals. Since the bearing may be subjected to greater pressure and deform, the sealing abutment effect of the plug ring will be deteriorated, thereby reducing the lubrication in the bearing structure and reducing its service life. To this end, we provide a reducer bearing structure to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a reducer bearing structure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reducer bearing structure, including a reducer partial structure, a bearing main body mechanism is arranged inside the reducer partial structure, sealing mechanisms are arranged on both sides of the bearing main body mechanism, and mounting mechanisms are arranged on both sides of the bearing main body mechanism, the bearing main body mechanism includes a bearing outer ring, the outer surface of the bearing outer ring is in contact with the inner wall of the reducer partial structure, a bearing inner ring is arranged inside the bearing outer ring, the sealing mechanism includes a first sealing gasket, mounting grooves are opened on both side surfaces of the reducer partial structure, a second sealing gasket is arranged on the right side of the first sealing gasket, and the first sealing gasket and the second sealing gasket are both Clamped in the interior of the mounting groove, both side surfaces of the bearing outer ring are provided with a first annular groove, both side surfaces of the bearing inner ring are provided with a second annular groove, the right side surface of the first sealing gasket is respectively fixedly connected with a retaining ring and a first large sealing ring, the right side surface of the retaining ring is in contact with the left side surface of the bearing inner ring, the outer surface of the retaining ring is in contact with the inner wall of the bearing outer ring, the right side surface of the retaining ring is fixedly connected with a first small sealing ring, the left side surface of the second sealing gasket is respectively fixedly connected with a second small sealing ring and a second large sealing ring, the first small sealing ring and the second small sealing ring are both clamped in the interior of the second annular groove, and the first large sealing ring and the second large sealing ring are both clamped in the interior of the first annular groove.

[0006] Furthermore, the interior of the bearing outer ring is provided with bearing rotating columns arranged at equal distances, and the outer surface of each of the bearing rotating columns is in contact with the outer surface of the bearing inner ring.

[0007] Furthermore, a stabilizing ring is fixedly connected to the inner wall of the bearing inner ring, the inner wall of the first sealing gasket and the inner wall of the second sealing gasket are both in contact with the outer surface of the stabilizing ring, and a rotating shaft is interference-mounted inside the stabilizing ring.

[0008] Furthermore, a fixed mounting plate is fixedly connected to the outer surface of the bearing outer ring, and the fixed mounting plate is clamped in one of the mounting grooves. The left side of the fixed mounting plate contacts the right side of the first sealing gasket, and the mounting mechanism includes fixing bolts arranged at equal distances.

[0009] Furthermore, the left side surface of the fixed mounting plate is provided with equally spaced mounting threaded holes, the inner side wall of one of the mounting grooves is provided with equally spaced first threaded holes, the left side surface of the first sealing gasket and the right side surface of the second sealing gasket are both provided with equally spaced second threaded holes, each of the first threaded holes, each mounting threaded hole and each second threaded hole are connected, and the right end of each of the fixing bolts passes through the two second threaded holes, the mounting threaded hole and the first threaded hole in sequence and extends to the right side of the reducer partial structure.

[0010] Furthermore, a mounting ring is fixedly connected to the outer surface of each fixing bolt, a compression spring is fixedly connected to the right side surface of each mounting ring, and an inner wall of each compression spring is in contact with the outer surface of the fixing bolt.

[0011] Furthermore, the right end of each compression spring is fixedly connected to a sliding buffer ring, the inner wall of each sliding buffer ring is in contact with the outer surface of the fixing bolt, and the right side surface of each sliding buffer ring is in contact with the left side surface of the first sealing gasket.

[0012] Compared with the prior art, the reducer bearing structure has the following beneficial effects: the utility model is provided with a reducer partial structure, a bearing outer ring, a bearing inner ring, a first sealing gasket, a mounting groove and a second sealing gasket, and can use the bearing outer ring and the bearing inner ring in the reducer partial structure to form the main body of the reducer bearing structure, and use the first sealing gasket and the second sealing gasket arranged on both sides of the bearing structure main body to make the first sealing gasket and the second sealing gasket clamped in the mounting groove to seal both sides of the bearing outer ring and the bearing inner ring to form a first seal, and then use the first annular groove, the second annular groove, the retaining ring, the first large sealing ring, the first small sealing ring, the second small sealing ring and the second large sealing ring to cooperate to install the bearing outer ring and the bearing inner ring through the retaining ring to form a second seal, and the first small sealing ring and the second small sealing ring are clamped in the second annular groove to form a third seal, and the first large sealing ring and the second large sealing ring are clamped in the first annular groove to form a fourth seal, so that the sealing of the reducer bearing structure is improved by using multiple seals, which can extend the service life of the reducer bearing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the first sealing gasket of the utility model.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the reducer part of the utility model.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the inner ring of the bearing of the utility model.

[0016] Figure 4 It is a three-dimensional sectional structural schematic diagram of the reducer part structure of the utility model.

[0017] In the figure: 1. Partial structure of the reducer; 2. Bearing main body mechanism; 201. Bearing outer ring; 202. Bearing column; 203. Bearing inner ring; 204. Stabilizing ring; 205. Rotating shaft; 3. Sealing mechanism; 301. First sealing gasket; 302. Second sealing gasket; 303. Mounting groove; 304. First annular groove; 305. Second annular groove; 306. Retaining ring; 307. First small sealing ring; 308. First large sealing ring; 309. Second small sealing ring; 310. Second large sealing ring; 311. Fixed mounting plate; 4. Mounting mechanism; 401. First threaded hole; 402. Mounting threaded hole; 403. Second threaded hole; 404. Fixing bolt; 405. Mounting ring; 406. Compression spring; 407. Sliding buffer ring. DETAILED DESCRIPTION

[0018] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0019] This embodiment provides a reducer bearing structure, which is used to support the rotating gear shaft or connecting rod of the reducer. It can use multiple seals to improve the sealing performance of the reducer bearing structure, thereby extending the service life of the reducer bearing structure.

[0020] Reference Figure 1 and Figure 3 A reducer bearing structure comprises a reducer partial structure 1, a bearing main body mechanism 2 is arranged inside the reducer partial structure 1, sealing mechanisms 3 are arranged on both sides of the bearing main body mechanism 2, and mounting mechanisms 4 are arranged on both sides of the bearing main body mechanism 2, the bearing main body mechanism 2 comprises a bearing outer ring 201, the outer surface of the bearing outer ring 201 contacts the inner wall of the reducer partial structure 1, a bearing inner ring 203 is arranged inside the bearing outer ring 201, and bearing rotating columns 202 arranged at equal distances are arranged inside the bearing outer ring 201, the outer surface of each bearing rotating column 202 contacts the outer surface of the bearing inner ring 203, and a plurality of bearing rotating columns 202 are used to rotate between the bearing outer ring 201 and the bearing inner ring 203 to form the main body of the bearing structure, thereby facilitating the stable rotation of the structure installed inside the bearing inner ring 203 under the action of the main body of the bearing structure.

[0021] Reference Figure 1 and Figure 4The sealing mechanism 3 includes a first sealing gasket 301. Both sides of the reducer structure 1 are provided with mounting grooves 303. A second sealing gasket 302 is arranged on the right side of the first sealing gasket 301. Both the first sealing gasket 301 and the second sealing gasket 302 are clamped in the interior of the mounting groove 303. The inner wall of the bearing inner ring 203 is fixedly connected with a stabilizing ring 204. The inner wall of the first sealing gasket 301 and the inner wall of the second sealing gasket 302 are in contact with the outer surface of the stabilizing ring 204. The interior of the stabilizing ring 204 is interference-fitted with a rotating shaft 205. By fixing the stabilizing ring 204 on the inner wall of the bearing inner ring 203 and installing the rotating shaft 205 in the stabilizing ring 204 by interference fit, the rotating shaft 205 can be firmly installed in the bearing structure to enable it to rotate stably.

[0022] Reference Figure 1 and Figure 3 A first annular groove 304 is provided on both sides of the bearing outer ring 201, and a second annular groove 305 is provided on both sides of the bearing inner ring 203. A fixed mounting plate 311 is fixedly connected to the outer surface of the bearing outer ring 201. The fixed mounting plate 311 is clamped in one of the mounting grooves 303. The left side of the fixed mounting plate 311 contacts the right side of the first sealing gasket 301. The mounting mechanism 4 includes fixing bolts 404 arranged at equal distances. By using the fixed mounting plate 311, the bearing can be installed at a desired position by using a fixed structure, thereby stably installing the bearing structure at a desired position of the reducer.

[0023] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The right side of the first sealing gasket 301 is fixedly connected with a retaining ring 306 and a first large sealing ring 308 respectively. The right side of the retaining ring 306 contacts the left side of the bearing inner ring 203. The outer surface of the retaining ring 306 contacts the inner wall of the bearing outer ring 201. The left side of the fixed mounting plate 311 is provided with mounting threaded holes 402 arranged at equal distances. The inner side wall of one mounting groove 303 is provided with first threaded holes 401 arranged at equal distances. The left side of the first sealing gasket 301 and the right side of the second sealing gasket 302 are both provided with second threaded holes 403 arranged at equal distances. A threaded hole 401, each mounting threaded hole 402 and each second threaded hole 403 are connected, and the right end of each fixing bolt 404 passes through the two second threaded holes 403, the mounting threaded hole 402 and the first threaded hole 401 in sequence and extends to the right side of the reducer part structure 1. By passing the fixing bolt 404 through the two second threaded holes 403, the mounting threaded hole 402 and the first threaded hole 401, the first sealing gasket 301, the fixed mounting plate 311 and the second sealing gasket 302 can be installed on both sides of the reducer part structure 1, thereby facilitating the installation of the bearing structure.

[0024] Reference Figure 1 and Figure 4 The right side of the retaining ring 306 is fixedly connected with a first small sealing ring 307, and the left side of the second sealing gasket 302 is respectively fixedly connected with a second small sealing ring 309 and a second large sealing ring 310, the first small sealing ring 307 and the second small sealing ring 309 are both clamped in the second annular groove 305, the first large sealing ring 308 and the second large sealing ring 310 are both clamped in the first annular groove 304, the outer surface of each fixing bolt 404 is fixedly connected with a mounting ring 405, and the right side of each mounting ring 405 is fixedly connected with a compression spring 406, the inner wall of each compression spring 406 is in contact with the outer surface of the fixing bolt 404, and the compression spring 406 is compressed by twisting the fixing bolt 404, and the elastic force accumulated in the compression spring 406 can be used to buffer the impact force on the fixing bolt 404, thereby improving the installation stability of the fixing bolt 404.

[0025] Reference Figure 1 The right end of each compression spring 406 is fixedly connected with a sliding buffer ring 407, the inner wall of each sliding buffer ring 407 is in contact with the outer surface of the fixing bolt 404, and the right side of each sliding buffer ring 407 is in contact with the left side of the first sealing gasket 301. The sliding buffer ring 407 is used to increase the force area applied by the compression spring 406 to the first sealing gasket 301, which can buffer the impact force on the fixing bolt 404, thereby extending the service life of the fixing bolt 404.

[0026] Working principle: When the bearing structure needs to be installed inside the reducer structure 1 to support the rotation of the rotating shaft 205, the main body of the bearing structure consisting of the bearing outer ring 201, the bearing column 202 and the bearing inner ring 203 is first installed manually inside the reducer structure 1, and at the same time, the fixed installation disk 311 fixed outside the bearing outer ring 201 can be stuck into the installation groove 303 opened on one side of the reducer structure 1, and the installation threaded hole 402 is made to correspond to the first threaded hole 401, and then the first sealing gasket 301 and the second sealing gasket 302 are manually installed into the installation groove 303, and the first sealing gasket 301 is set in contact with the fixed installation disk 311, and the second threaded hole 403 is also made to correspond to the installation threaded hole 402;

[0027] When installing the first sealing gasket 301 and the second sealing gasket 302, the retaining ring 306 on one side of the first sealing gasket 301 can be in contact with one side of the bearing inner ring 203, and the first small sealing ring 307 and the first large sealing ring 308 fixed on one side of the first sealing gasket 301 are respectively clamped into the second annular groove 305 and the first annular groove 304, and the second small sealing ring 309 and the second large sealing ring 310 fixed on one side of the second sealing gasket 302 are respectively clamped into another second annular groove 305 and the first annular groove 304, so that Multiple seals are used to seal between the bearing outer ring 201 and the bearing inner ring 203. Since the bearing column 202 needs lubrication to rotate between the bearing outer ring 201 and the bearing inner ring 203, the loss of lubricating oil between the bearing outer ring 201 and the bearing inner ring 203 can be reduced. Finally, the bearing structure is firmly fixed inside the reducer part structure 1 by using a fixing bolt 404 passing through the two second threaded holes 403, the installation threaded hole 402 and the first threaded hole 401, so that the rotating shaft 205 can rotate stably inside it.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reducer bearing structure, comprising a reducer part structure (1), characterized in that: A bearing main body mechanism (2) is arranged inside the reducer partial structure (1), sealing mechanisms (3) are arranged on both sides of the bearing main body mechanism (2), and mounting mechanisms (4) are arranged on both sides of the bearing main body mechanism (2), the bearing main body mechanism (2) comprises a bearing outer ring (201), the outer surface of the bearing outer ring (201) is in contact with the inner wall of the reducer partial structure (1), a bearing inner ring (203) is arranged inside the bearing outer ring (201), the sealing mechanism (3) comprises a first sealing gasket (301), mounting grooves (303) are provided on both sides of the reducer partial structure (1), a second sealing gasket (302) is provided on the right side of the first sealing gasket (301), the first sealing gasket (301) and the second sealing gasket (302) are both clamped in the interior of the mounting groove (303), and first annular grooves (203) are provided on both sides of the bearing outer ring (201). A groove (304) is formed on both sides of the bearing inner ring (203), and a second annular groove (305) is formed on both sides of the bearing inner ring (203). A retaining ring (306) and a first large sealing ring (308) are fixedly connected to the right side of the first sealing gasket (301). The right side of the retaining ring (306) contacts the left side of the bearing inner ring (203), and the outer surface of the retaining ring (306) contacts the inner wall of the bearing outer ring (201). A first small sealing ring (307) is fixedly connected to the right side of the retaining ring (306). A second small sealing ring (309) and a second large sealing ring (310) are fixedly connected to the left side of the second sealing gasket (302). The first small sealing ring (307) and the second small sealing ring (309) are both clamped in the interior of the second annular groove (305), and the first large sealing ring (308) and the second large sealing ring (310) are both clamped in the interior of the first annular groove (304).

2. A reducer bearing structure according to claim 1, characterized in that: The bearing outer ring (201) is provided with bearing rotating columns (202) arranged at equal distances inside, and the outer surface of each bearing rotating column (202) is in contact with the outer surface of the bearing inner ring (203).

3. A reducer bearing structure according to claim 1, characterized in that: The inner wall of the bearing inner ring (203) is fixedly connected to a stabilizing ring (204), the inner wall of the first sealing gasket (301) and the inner wall of the second sealing gasket (302) are both in contact with the outer surface of the stabilizing ring (204), and a rotating shaft (205) is interference-mounted inside the stabilizing ring (204).

4. A reducer bearing structure according to claim 1, characterized in that: A fixed mounting plate (311) is fixedly connected to the outer surface of the bearing outer ring (201); the fixed mounting plate (311) is clamped into the interior of one of the mounting grooves (303); the left side surface of the fixed mounting plate (311) contacts the right side surface of the first sealing gasket (301); and the mounting mechanism (4) comprises fixing bolts (404) arranged at equal distances.

5. A reducer bearing structure according to claim 4, characterized in that: The left side surface of the fixed installation plate (311) is provided with mounting threaded holes (402) arranged at equal distances, the inner side wall of one of the mounting grooves (303) is provided with first threaded holes (401) arranged at equal distances, the left side surface of the first sealing gasket (301) and the right side surface of the second sealing gasket (302) are both provided with second threaded holes (403) arranged at equal distances, each of the first threaded holes (401), each of the mounting threaded holes (402) and each of the second threaded holes (403) are all connected, and the right end of each of the fixing bolts (404) passes through the two second threaded holes (403), the mounting threaded hole (402) and the first threaded hole (401) in sequence and extends to the right side of the reducer partial structure (1).

6. A reducer bearing structure according to claim 4, characterized in that: The outer surface of each fixing bolt (404) is fixedly connected to a mounting ring (405), the right side surface of each mounting ring (405) is fixedly connected to a compression spring (406), and the inner wall of each compression spring (406) is in contact with the outer surface of the fixing bolt (404).

7. A reducer bearing structure according to claim 6, characterized in that: The right end of each compression spring (406) is fixedly connected to a sliding buffer ring (407), the inner wall of each sliding buffer ring (407) is in contact with the outer surface of the fixing bolt (404), and the right side surface of each sliding buffer ring (407) is in contact with the left side surface of the first sealing gasket (301).

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