Oil seal structure of input shaft of speed reducer

Abstract

The utility model relates to the technical field of speed reducer sealing structures, in particular to a speed reducer input shaft oil sealing structure which comprises a speed reducer body, a motor is arranged on the outer side of the speed reducer body, one end, close to the motor, of the interior of the speed reducer body is rotationally connected with a connecting roller, and the driving end of the motor is fixedly connected with the connecting roller. An oil seal main body is arranged on the outer side of the connecting roller and located in the speed reducer main body, an input shaft main body is fixedly connected to the end, away from the motor, of the connecting roller and located in the speed reducer main body, and multiple sets of first grooves distributed at equal intervals are formed in the outer side of the oil seal main body; the speed reducer input shaft oil seal structure comprises an oil seal body, a first inserting groove is formed in the end, away from a motor, of the oil seal body, a clamping block is fixedly connected into the first inserting groove, and a sealing ring is arranged in the first inserting groove and located on the outer side of the clamping block. Through the design, the overall practicability of the oil seal structure of the input shaft of the speed reducer can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a speed reducer sealing structure technical field, concretely relates to a speed reducer input shaft oil seal structure. BACKGROUND

[0002] Speed reducer is a kind of independent component by being enclosed in rigid shell Gear transmission, worm drive, gear-worm drive, commonly used as the speed reducer between prime mover and working machine, it matches speed and transmission torque between prime mover and working machine or actuating mechanism, and is widely used in modern machinery. Input shaft is the shaft that receives external power input in reducer, is usually connected with motor, and the power of motor is transmitted to the whole reducer system, drives the operation of the whole reducer system. Oil seal is the customary designation of general seal, simply it is the seal of lubricating oil, it is the mechanical element for sealing grease, it separates the parts needing lubrication in transmission component from output component, so as not to let lubricating oil leak, and dynamic seal and static seal are called oil seal.

[0003] Oil seal structure is installed between shell and input shaft, and the main effects include preventing oil leakage, preventing impurities from entering, keeping lubricating oil clean, preventing lubricating oil from aging and deteriorating, and improving the stability of speed reducer. The existing oil seal structure is usually single-layer structure, and the sealing effect is good at the beginning, but cannot last long, and is easy to leak after aging and wearing. Therefore, it is particularly important to improve the existing speed reducer input shaft oil seal structure, design a new type of speed reducer input shaft oil seal structure to solve the above technical defects, improve the practicability of the whole speed reducer input shaft oil seal structure. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a speed reducer input shaft oil seal structure, which can perform multilayer sealing on the outside and the inside, improve the overall sealing performance, prevent collapse and deformation, improve the quality, prolong the service life, and improve the overall safety of the speed reducer input shaft oil seal structure, to solve the problems in the above background technology.

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

[0006] A speed reducer input shaft oil seal structure includes a speed reducer main body, the outside of the speed reducer main body is provided with a motor, the inside of the speed reducer main body and the end close to the motor are rotatably connected with a connecting stick, the driving end of the motor is fixedly connected with the connecting stick, the outside of the connecting stick and the inside of the speed reducer main body are provided with an oil seal main body, and the inside of the speed reducer main body and the end away from the motor of the connecting stick are fixedly connected with an input shaft main body.

[0007] As the preferred scheme of the utility model, the outside of the oil seal body is provided with a plurality of first grooves which are distributed at equal intervals, and the end of the oil seal body away from the motor is provided with a first slot.

[0008] As the preferred scheme of the utility model, the inside of the first slot is fixedly connected with a clamping block, and the inside of the first slot and outside of the clamping block are provided with a sealing ring.

[0009] As the preferred scheme of the utility model, the inside of the clamping block is provided with a second slot, a plurality of second grooves which are distributed at equal intervals are formed on the inner wall of the clamping block, a third slot is formed in the inside of the second slot, and the second slot and third slot are designed to be matched with the connecting rod.

[0010] As the preferred scheme of the utility model, the inside of the third slot and end close to the motor are fixedly connected with a dustproof lip, and the inside of the third slot and end close to the sealing ring are fixedly connected with a sealing lip.

[0011] As the preferred scheme of the utility model, the inside of the oil seal body and end close to the first slot are provided with two annular cavities, and the inside of the annular cavity is provided with a spring ring.

[0012] As the preferred scheme of the utility model, the inside of the oil seal body and end away from the first slot of the annular cavity are provided with a framework.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、In the utility model, when the input shaft oil seal structure of the speed reducer is put into use, the oil seal body is installed in the inside of the speed reducer body, the oil seal body is one circle larger than the hole to be installed, the surrounding edge can be extruded into the first groove, so that the installation hole is filled, the sealing property of the outside of the oil seal body is guaranteed, even if oil overflows, it will flow into the first group of first grooves first, and there are multiple layers of blocking, the sealing property of the outside of the oil seal body is further guaranteed, the dustproof lip prevents things from the outside from entering the inside of the speed reducer body through the third slot, the sealing lip prevents things in the inside of the speed reducer body from overflowing from the third slot, the surrounding edge of the clamping block is extruded into the second groove, multiple layers of blocking are formed, the sealing property of the inside of the oil seal body is further guaranteed, the two spring rings tightly wrap the connecting rod by applying force inward, the sealing property of the inside of the oil seal body is further strengthened, multiple layers of sealing are formed, the overall sealing property is improved, and the service life is prolonged.

[0015] 2. The utility model discloses a speed reducer main body, motor, connecting stick, oil seal main body, first slot, second slot, third slot, framework, sealing washer and input shaft main body's design, when the speed reducer input shaft oil seal structure is put into use, sealing washer strengthens the sealing property of oil seal main body outside, the multilayer design of connecting stick strengthens the sealing property of oil seal main body inside, and framework supports oil seal main body, prevents its collapse deformation, improves quality, prolongs the life. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is whole structure schematic diagram of the utility model;

[0017] Fig. 2 It is oil seal main body structure schematic diagram of the utility model;

[0018] Fig. 3 It is oil seal main body side cross section structure schematic diagram of the utility model.

[0019] In the drawing: 1, speed reducer main body;2, motor;201, connecting stick;3, oil seal main body;301, first recess;302, first slot;4, dustproof lip portion;401, sealing lip portion;402, clamping block;403, second recess;404, second slot;405, third slot;5, annular cavity;501, spring ring;502, framework;6, sealing washer;7, input shaft main body. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described below in a clear and complete manner in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Embodiment:

[0022] Please refer to Figs. 1-3 The utility model provides a technical scheme:

[0023] The utility model provides an input shaft oil seal structure of speed reducer, including the speed reducer body 1, the outside of speed reducer body 1 is equipped with motor 2, the inside of speed reducer body 1 and the one end close to motor 2 is rotatably connected with the connecting stick 201, and the drive end of motor 2 is fixedly connected with connecting stick 201, and the outside of connecting stick 201 and the inside of speed reducer body 1 are equipped with oil seal body 3, and the inside of speed reducer body 1 and the one end away from motor 2 of connecting stick 201 are fixedly connected with input shaft body 7, when the input shaft oil seal structure of speed reducer is put into use, open power supply, and the drive end of motor 2 rotates to drive connecting stick 201 to rotate to drive input shaft body 7 to rotate, and oil seal body 3 seals the part, and the multilayer design of connecting stick 201 strengthens the sealing property of oil seal body 3 inside.

[0024] Further, the outside of oil seal body 3 is provided with a plurality of first grooves 301 distributed at equal intervals, and a first insertion slot 302 is formed at the end of oil seal body 3 away from motor 2, when the input shaft oil seal structure of speed reducer is put into use, the material of oil seal body 3 is oil-resistant rubber, when oil seal body 3 is installed, the hole to be installed is larger than oil seal body 3 by one circle, the surrounding edge can be extruded into the first groove 301, so as to fill the installation hole, and the sealing property of the outside of oil seal body 3 is ensured, even if oil overflows, it will flow into the first group of first grooves 301 first, and there are multiple layers of blocking, further ensuring the sealing property of the outside of oil seal body 3.

[0025] Wherein, the inside of the first insertion slot 302 is fixedly connected with a clamping block 402, and a sealing ring 6 is arranged in the inside of the first insertion slot 302 and outside the clamping block 402, when the input shaft oil seal structure of speed reducer is put into use, the sealing ring 6 further enhances the sealing property of the outside of oil seal body 3.

[0026] Secondly, a second insertion slot 404 is formed in the inside of the clamping block 402, a plurality of second grooves 403 distributed at equal intervals are formed on the inner wall of the clamping block 402, a third insertion slot 405 is formed in the inside of the second insertion slot 404, the second insertion slot 404 and the third insertion slot 405 are designed to be matched with the connecting stick 201, a dustproof lip 4 is fixedly connected to the inside of the third insertion slot 405 and close to the motor 2, and a sealing lip 401 is fixedly connected to the inside of the third insertion slot 405 and close to the sealing ring 6, when the input shaft oil seal structure of speed reducer is put into use, the connecting stick 201 is inserted into the second insertion slot 404 and the third insertion slot 405, the dustproof lip 4 prevents foreign matters from entering the inside of the speed reducer body 1 from the third insertion slot 405, the sealing lip 401 prevents the things in the inside of the speed reducer body 1 from overflowing from the third insertion slot 405, the surrounding edge of the clamping block 402 is extruded into the second groove 403, multiple layers of blocking, further ensuring the sealing property of the inside of oil seal body 3.

[0027] Furthermore, two annular cavities 5 are arranged in the oil seal body 3, close to one end of the first slot 302, and spring rings 501 are arranged in the annular cavities 5, when the input shaft oil seal structure of the speed reducer is used, the two spring rings 501 tightly wrap the connecting stick 201 by inward force, and the sealing performance of the oil seal body 3 is further improved.

[0028] Furthermore, a framework 502 is arranged in the oil seal body 3, away from one end of the annular cavity 5, and close to the first slot 302, when the input shaft oil seal structure of the speed reducer is used, the framework 502 supports the oil seal body 3, prevents the oil seal body 3 from collapsing and deforming, improves the quality, and prolongs the service life.

[0029] In the embodiment, the implementation scene is specifically: when the input shaft oil seal structure of the speed reducer is used, the oil seal body 3 is installed in the speed reducer body 1, the connecting stick 201 is inserted into the second slot 404 and the third slot 405, the sealing ring 6 is inserted into the first slot 302, the power supply is turned on, the driving end of the motor 2 rotates to drive the connecting stick 201 to rotate, to drive the input shaft body 7 to rotate, and to start using, wherein the oil seal body 3 is larger than the hole to be installed by one circle, the surrounding edge of the oil seal body 3 can be pressed into the first groove 301, so that the installation hole is filled, the sealing performance of the outer side of the oil seal body 3 is ensured, even if oil overflows, it will flow into the first group of the first groove 301 first, and then there are multiple layers of blocking, the sealing performance of the outer side of the oil seal body 3 is further ensured, the dust lip 4 prevents foreign matters from entering the inside of the speed reducer body 1 from the third slot 405, the sealing lip 401 prevents the things in the speed reducer body 1 from overflowing from the third slot 405, the surrounding edge of the clamping block 402 is pressed into the second groove 403, multiple layers of blocking, the sealing performance of the inside of the oil seal body 3 is further ensured, the multiple layers of the connecting stick 201 improve the sealing performance of the inside of the oil seal body 3, the two spring rings 501 tightly wrap the connecting stick 201 by inward force, the sealing performance of the inside of the oil seal body 3 is further improved, the framework 502 supports the oil seal body 3, prevents the oil seal body 3 from collapsing and deforming, improves the quality, and prolongs the service life, compared with the existing input shaft oil seal structure of the speed reducer, the overall practicability of the input shaft oil seal structure of the speed reducer is improved by the design.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A reducer input shaft oil seal structure comprising a reducer main body (1), characterized by: The outer side of the speed reducer body (1) is provided with a motor (2), one end of the inside of the speed reducer body (1) and close to the motor (2) is rotatably connected with a connecting stick (201), the driving end of the motor (2) is fixedly connected with the connecting stick (201), the outer side of the connecting stick (201) and inside the speed reducer body (1) is provided with an oil seal body (3), one end of the inside of the speed reducer body (1) and away from the motor (2) is fixedly connected with an input shaft body (7).

2. The input shaft seal structure of a speed reducer according to claim 1, characterized in that: The outer side of the oil seal body (3) is provided with a plurality of groups of first grooves (301) distributed at equal intervals, and the end of the oil seal body (3) away from the motor (2) is provided with a first insertion slot (302).

3. The speed reducer input shaft oil seal structure according to claim 2, characterized by: The inside of the first insertion slot (302) is fixedly connected with a clamping block (402), and the inside of the first insertion slot (302) and outside the clamping block (402) is provided with a sealing ring (6).

4. The speed reducer input shaft oil seal structure according to claim 3, characterized by: The inside of the clamping block (402) is provided with a second insertion slot (404), a plurality of groups of second grooves (403) are arranged on the inner wall of the clamping block (402) and distributed at equal intervals, the inside of the second insertion slot (404) is provided with a third insertion slot (405), and the second insertion slot (404) and the third insertion slot (405) are designed to be matched with the connecting stick (201).

5. The speed reducer input shaft oil seal structure according to claim 4, characterized by: The inside of the third insertion slot (405) and one end close to the motor (2) are fixedly connected with a dustproof lip (4), and the inside of the third insertion slot (405) and one end close to the sealing ring (6) are fixedly connected with a sealing lip (401).

6. The speed reducer input shaft oil seal structure according to claim 5, characterized by: The inside of the oil seal body (3) and one end close to the first insertion slot (302) are provided with two groups of annular cavities (5), and the inside of the annular cavity (5) is provided with a spring ring (501).

7. The speed reducer input shaft oil seal structure according to claim 6, characterized by: The inside of the oil seal body (3) and one end away from the first insertion slot (302) and located in the annular cavity (5) are provided with a framework (502).

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