Speed reducer gear box convenient to maintain

Abstract

The speed reducer gearbox convenient to maintain comprises a speed reducer base, the top end of the speed reducer base abuts against a speed reducer shell, a bolt piece penetrates through the position between the speed reducer base and the speed reducer shell, the outer side of the bolt piece is connected with a nut piece in a meshed mode, and the outer side of the bolt piece is connected with an annular plate in a sleeved mode. The lower surface of the annular plate abuts against a sealing gasket. The annular plate and the sealing washer are connected to the outer side of the bolt piece in a sleeved mode, a worker enables the bolt piece to penetrate through the interior of the speed reducer base and the interior of the speed reducer shell, and along with meshing connection between the bolt piece and the nut piece, the nut piece is tightly attached to the outer side of the speed reducer base, and the sealing washer is tightly attached to the outer side of the speed reducer shell. The connecting gap between the speed reducer base and the speed reducer shell is sealed, and then the protective shell is connected to the outer side of the bolt piece in a sleeving mode to rotate, so that the protective shell can be connected to the outer side of the outer ring base in a meshed mode, the bolt piece is protected, and the phenomenon that the bolt piece is corroded by the humid environment is effectively isolated.

Description

Technical Field

[0001] This utility model relates to the technical field of speed reducers, specifically a speed reducer gearbox that is easy to maintain. Background Technology

[0002] A speed reducer is an independent component consisting of gear transmission, worm transmission, or gear-worm transmission enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between the prime mover and the working machine. According to the transmission arrangement, it can be divided into open type, split type, and coaxial type speed reducers.

[0003] For speed reducers that operate for extended periods, disassembly and maintenance are often required. Currently, speed reducer housings typically consist of a base and a cover, connected by bolts and nuts. However, in practice, the bolt tops are not protected during disassembly, leading to corrosion and rust in humid environments, hindering maintenance. Therefore, we propose a maintenance-friendly speed reducer gearbox to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a speed reducer gearbox that is easy to maintain, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reducer gearbox that is easy to maintain, comprising a reducer base, a reducer housing abutting at the top of the reducer base, a bolt passing through the reducer base and the reducer housing, a nut engaging with the outer side of the bolt, an annular plate sleeved on the outer side of the bolt, a sealing washer abutting the lower surface of the annular plate, the sealing washer abutting the outer side of the reducer housing, an outer ring seat fixedly mounted on the upper surface of the annular plate, a rubber sleeve fixedly provided on the inner wall of the outer ring seat, the rubber sleeve abutting the outer side of the bolt, a protective shell engaging with the outer side of the outer ring seat, the protective shell sleeved on the outer side of the bolt, an inwardly inclined edge on the inner wall edge of the outer ring seat, and an outwardly inclined edge on the outer edge of the annular plate.

[0006] As a further preferred embodiment of this technical solution, the sealing gasket is fitted onto the outside of the bolt, the sealing gasket is tightly attached to the outside of the reducer housing, and the sealing gasket is made of waterproof rubber material.

[0007] As a further preferred embodiment of this technical solution, the top of the protective shell is provided with a groove, and a magnetic sheet is fixedly installed inside the groove. The outer periphery of the top of the protective shell is set in an arc shape.

[0008] As a further preferred embodiment of this technical solution, the outer side of the protective shell is provided with anti-slip grooves, which are evenly distributed on the outer side of the protective shell, and the protective shell is made of polytetrafluoroethylene material.

[0009] As a further preferred embodiment of this technical solution, the thread connecting the outer ring seat and the protective shell is a fine-pitch thread.

[0010] As a further preferred embodiment of this technical solution, a positioning ring is fixedly installed on the lower surface of the annular plate. The positioning ring is inserted into the interior of the positioning groove, which is located on the upper surface of the sealing gasket. The outer side of the positioning ring is tightly attached to the inner wall of the positioning groove.

[0011] As a further preferred embodiment of this technical solution, the bottom end of the positioning ring is set in an arc shape, and the diameter of the annular plate and the sealing gasket are the same.

[0012] This utility model provides a speed reducer gearbox that is easy to maintain, and has the following beneficial effects:

[0013] This invention uses an annular plate and a sealing washer fitted onto the outside of the bolt. The bolt is inserted into the reducer housing and gearbox housing. As the bolt and nut engage, the nut is pressed tightly against the outside of the reducer housing, and the sealing washer is pressed tightly against the outside of the gearbox housing, sealing the gap between them. A protective shell is then fitted onto the outside of the bolt and rotated, engaging with the outer ring seat to protect the bolt and effectively prevent corrosion from a humid environment.

[0014] This utility model features a positioning ring and a positioning groove that fit together. The outer side of the positioning ring is tightly attached to the inner wall of the positioning groove, allowing the sealing gasket to be tightly attached to the lower surface of the annular plate. This makes it easy for personnel to directly slip it onto the outer side of the bolt for use, thus positioning the sealing gasket. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view sectional view of the protective shell structure of this utility model;

[0017] Figure 3 This is a front view schematic diagram of the structure of the bolt and sealing gasket of this utility model in the separated state;

[0018] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the structure of A in the middle.

[0019] In the diagram: 1. Gearbox base; 2. Gearbox housing; 3. Bolts; 4. Nuts; 5. Annular plate; 6. Sealing gasket; 7. Outer ring seat; 8. Rubber sleeve; 9. Protective shell; 10. Groove; 11. Magnetic sheet; 12. Inner inclined edge; 13. Outer inclined edge; 14. Anti-slip groove; 15. Positioning ring; 16. Positioning slot. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figure 1 , Figure 2 and Figure 3As shown in this embodiment, a gearbox for easy maintenance includes a gearbox housing 1. The top of the gearbox housing 1 abuts against a gearbox housing 2. A bolt 3 passes through the gearbox housing 1 and the gearbox housing 2. A nut 4 is engaged with the outer side of the bolt 3. An annular plate 5 is sleeved on the outer side of the bolt 3. A sealing washer 6 abuts against the lower surface of the annular plate 5. The sealing washer 6 abuts against the outer side of the gearbox housing 2. An outer ring seat 7 is fixedly installed on the upper surface of the annular plate 5. A rubber sleeve 8 is fixedly provided on the inner wall of the outer ring seat 7. The rubber sleeve 8 abuts against the outer side of the bolt 3. A protective shell 9 is engaged with the bolt 3. The protective shell 9 is fitted onto the outside of the bolt 3. The inner wall edge of the outer ring seat 7 is provided with an inner inclined edge 12, and the outer edge of the annular plate 5 is provided with an outer inclined edge 13. The annular plate 5 and the sealing washer 6 are fitted onto the outside of the bolt 3. The bolt 3 is inserted into the reducer housing 1 and the reducer housing 2. As the bolt 3 and the nut 4 engage, the nut 4 is tightly attached to the outside of the reducer housing 1, and the sealing washer 6 is tightly attached to the outside of the reducer housing 2, sealing the connection gap between the reducer housing 1 and the reducer housing 2. Then, the protective shell 9 is fitted onto the outside of the bolt 3 and screwed on. The rotating mechanism allows the protective shell 9 to engage with the outer side of the outer ring seat 7, thus protecting the bolt 3 and effectively isolating it from corrosion by a humid environment. The sealing gasket 6 is fitted onto the outer side of the bolt 3 and is tightly attached to the outer side of the reducer housing 2. The sealing gasket 6 is made of waterproof rubber material, effectively preventing rainwater from entering the gap between the reducer seat 1 and the reducer housing 2. The top of the protective shell 9 has a groove 10, and a magnetic sheet 11 is fixedly installed inside the groove 10. The outer periphery of the top of the protective shell 9 is arc-shaped, and the magnetic sheet 11... 1. The magnetic sheet 11 can be firmly attached to the outer side of the reducer housing 2, thereby restricting the position of the protective housing 9 so that it can be directly picked up and used by personnel later. The outer side of the protective housing 9 is provided with anti-slip grooves 14, which are evenly distributed on the outer side of the protective housing 9. The protective housing 9 is made of polytetrafluoroethylene material. The anti-slip grooves 14 facilitate the rotation and turning of the protective housing 9 by personnel. The thread that meshes between the outer ring seat 7 and the protective housing 9 is a fine thread. By using a fine thread, it can have self-locking properties, thereby improving the stability and sealing of the connection between the outer ring seat 7 and the protective housing 9.

[0022] like Figure 3 and Figure 4As shown, a positioning ring 15 is fixedly installed on the lower surface of the annular plate 5. The positioning ring 15 is inserted into the interior of the positioning groove 16, which is located on the upper surface of the sealing gasket 6. The outer side of the positioning ring 15 is tightly attached to the inner wall of the positioning groove 16. The bottom end of the positioning ring 15 is arc-shaped. The annular plate 5 and the sealing gasket 6 have the same diameter. Through the cooperation between the positioning ring 15 and the positioning groove 16, the outer side of the positioning ring 15 is tightly attached to the inner wall of the positioning groove 16, so that the sealing gasket 6 can be tightly attached to the lower surface of the annular plate 5. This makes it easy for personnel to directly fit it onto the outer side of the bolt 3 for use, thus positioning the sealing gasket 6.

[0023] This utility model provides a speed reducer gearbox that is easy to maintain. The specific working principle is as follows:

[0024] In use, the sealing washer 6 is placed on the lower surface of the annular plate 5, and pressure is applied between the annular plate 5 and the sealing washer 6 so that the positioning ring 15 can be inserted into the positioning groove 16. Then, the bolt 3 is passed through the annular plate 5 and the sealing washer 6 so that the outer ring seat 7 can be fitted onto the outside of the bolt 3, and the rubber sleeve 8 provided on the inner wall of the outer ring seat 7 can be tightly attached to the outside of the bolt 3. Then, the bolt 3 is inserted into the reducer base 1 and the reducer housing 2. As the bolt 3 and the nut 4 are engaged, the nut 4 is tightly attached to the outside of the reducer base 1 and the sealing washer 6 is tightly attached to the outside of the reducer housing 2. Then, the protective shell 9 is fitted onto the outside of the bolt 3 and rotated so that the protective shell 9 can be engaged onto the outside of the outer ring seat 7, thereby protecting the bolt 3.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reducer gearbox that is easy to maintain, characterized in that: Includes a reducer base (1), the top of which abuts against a reducer housing (2), a bolt (3) passing through between the reducer base (1) and the reducer housing (2), a nut (4) engaging with the outer side of the bolt (3), an annular plate (5) sleeved on the outer side of the bolt (3), a sealing washer (6) abutting against the lower surface of the annular plate (5), the sealing washer (6) abutting against the outer side of the reducer housing (2), the annular plate (5) An outer ring seat (7) is fixedly installed on the upper surface of the 5). A rubber sleeve (8) is fixedly provided on the inner wall of the outer ring seat (7). The rubber sleeve (8) abuts against the outer side of the bolt (3). A protective shell (9) is engaged with the outer side of the outer ring seat (7). The protective shell (9) is sleeved on the outer side of the bolt (3). An inner inclined edge (12) is provided on the inner wall edge of the outer ring seat (7). An outer inclined edge (13) is provided on the outer edge of the annular plate (5).

2. The easy-to-maintain reducer gearbox according to claim 1, characterized in that: The sealing gasket (6) is fitted onto the outside of the bolt (3), and the sealing gasket (6) is tightly attached to the outside of the reducer housing (2). The sealing gasket (6) is made of waterproof rubber material.

3. The easy-to-maintain reducer gearbox according to claim 1, characterized in that: The top of the protective shell (9) is provided with a groove (10), and a magnetic sheet (11) is fixedly installed inside the groove (10). The outer periphery of the top of the protective shell (9) is set in an arc shape.

4. The easy-to-maintain reducer gearbox according to claim 1, characterized in that: The protective shell (9) has anti-slip grooves (14) on its outer side. The anti-slip grooves (14) are evenly distributed on the outer side of the protective shell (9). The protective shell (9) is made of polytetrafluoroethylene material.

5. A reducer gearbox that is easy to maintain according to claim 1, characterized in that: The thread connecting the outer ring seat (7) and the protective shell (9) is a fine thread.

6. A reducer gearbox that is easy to maintain according to claim 1, characterized in that: A positioning ring (15) is fixedly installed on the lower surface of the annular plate (5). The positioning ring (15) is inserted into the interior of the positioning groove (16). The positioning groove (16) is opened on the upper surface of the sealing gasket (6). The outer side of the positioning ring (15) is tightly attached to the inner wall of the positioning groove (16).

7. A reducer gearbox that is easy to maintain according to claim 6, characterized in that: The bottom end of the positioning ring (15) is set in an arc shape, and the diameter of the annular plate (5) and the sealing gasket (6) are the same.

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