Dustproof speed reducer

Abstract

The utility model discloses a dustproof speed reducer belongs to dustproof speed reducer technical field, can be effectively prevented the dust of input disc and output disc place to accumulate in working time, avoids the dust of input disc and output disc of speed reducer place gathering to cause equipment to appear the failure condition as far as possible, solves the problem of the lack of dustproof structure of speed reducer body. The dustproof speed reducer includes first casing and second casing, and the first casing and the second casing combine to form the speed reducer body, and the adjacent side of the first casing and the second casing is fixed through the fixing seat and the bolt connection, and the gear set is installed in the speed reducer body inside, the outer edge of input shaft and output shaft is provided with the clamping groove, and the protection assembly is clamped and installed at the clamping groove, and the protection assembly includes the rotating ring, and the rotating ring is provided with two, and the protection sleeve is rotatably embedded between the two rotating rings, and the clamping block is protrusively arranged on the inner side of the rotating ring.

Description

Technical Field

[0001] This utility model belongs to the technical field of dustproof speed reducers, specifically relating to a dustproof speed reducer. Background Technology

[0002] A speed reducer is an independent component consisting of gear drives, worm drives, or gear-worm drives enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between a prime mover and a working machine. It plays a role in matching speeds and transmitting torque between the prime mover and the working machine or actuator, and its applications are extremely widespread in modern machinery.

[0003] Publication number "CN103883720A" discloses "a reducer for an oil pumping unit, which solves the problem that the input shaft bearing cannot be lubricated due to the unreasonable structure of existing reducers. It includes a housing, a housing cover, and an input shaft, an output shaft, and an intermediate shaft located between the two. Input shaft bearings are provided at both ends of the input shaft... The present invention has a reasonable and reliable structural design, which can ensure that the input shaft bearing is effectively lubricated when the reducer is running at low speed. It has the advantages of simple structure, convenient processing, and low cost."

[0004] The aforementioned reducer uses the input and output shafts as key interfaces for power transmission. When exposed to dusty environments for extended periods, dust easily accumulates in the mounting holes of the input and output discs during daily use and storage, leading to dust buildup on the shaft ends over time. To address this issue, we propose a dustproof reducer. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dustproof reducer. The dustproof reducer can effectively prevent dust from accumulating on the input and output discs during operation through a covered dustproof structure, thereby avoiding equipment failure caused by dust accumulation on the input and output discs of the reducer and solving the problem of the lack of a dustproof structure in the reducer body.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides a dustproof reducer, which includes a first housing and a second housing. The first housing and the second housing are combined to form the reducer body. The first housing and the second housing are fixedly connected on adjacent sides by a fixing seat and bolts. A gear set is installed inside the reducer body. An input shaft and an output shaft are respectively provided on one side of the second housing. The front ends of the input shaft and the output shaft are respectively provided with a pin and a slot.

[0009] The input shaft and output shaft are provided with snap-fit ​​grooves on their outer edges. A protective component for auxiliary dust prevention is snap-fitted into the snap-fit ​​grooves. The protective component includes a rotating ring. There are two rotating rings. A protective sleeve is rotatably embedded between the two rotating rings. A snap-fit ​​block is protruding from the inner side of the rotating ring. The snap-fit ​​block is inserted into the snap-fit ​​groove.

[0010] Furthermore, the vertical cross-section of the snap-fit ​​block is T-shaped, and the snap-fit ​​groove is provided with an insertion port for inserting the snap-fit ​​block and a positioning groove for sliding snap-fitting the snap-fit ​​block. The insertion port is connected to the positioning groove, and the positioning groove is arc-shaped.

[0011] Furthermore, the protective sleeve is provided in several units, which are adjacent to each other and pasted together, and the vertical cross-section of the protective sleeve is hexagonal.

[0012] Furthermore, a positioning component is installed on the outer side of the rotating ring, and positioning holes are provided at the outer edges of the input shaft and the output shaft, and the positioning holes are engaged with the positioning component.

[0013] Furthermore, the positioning assembly includes a positioning cylinder fixed on a rotating ring. The positioning cylinder has a cavity inside, and a positioning pin is slidably disposed in the cavity. One end of the positioning pin extends out of the cavity and is inserted into a positioning hole. A connecting rod is fixed on the positioning pin inside the positioning cylinder. The end of the connecting rod away from the positioning pin extends out of the positioning cylinder, and a pull ring is fixed to the end of the connecting rod extending out of the positioning cylinder. A pressure spring for assisting the positioning pin in pressing is installed in the cavity.

[0014] Furthermore, both the input shaft and the output shaft have a retaining ring protruding from their outer edges, and the retaining ring has a fixing hole drilled on it for bolt fixing.

[0015] Furthermore, symmetrical fixing ears are provided at the bottom of both ends of the first housing, and the fixing ears are provided with base holes.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model, through the setting of protective components, aligns two rotating rings with the inner snap-fit ​​blocks of the input shaft and the insertion port of the snap-fit ​​groove on the outer edge of the output shaft. Rotating the rotating rings counterclockwise causes the snap-fit ​​blocks to slide into the positioning groove, achieving axial fixation. At this time, the protective sleeve between the two rotating rings wraps around the shaft body, forming a dustproof barrier. During operation, the covered dustproof structure can effectively prevent dust from accumulating on the input and output discs, minimizing the possibility of equipment malfunctions caused by dust accumulation on the input and output discs of the reducer. This solves the problem of the reducer body lacking a dustproof structure.

[0019] This utility model, through the combination of positioning components, positioning holes, and matching snap-fit ​​blocks and snap-fit ​​slots, can achieve multiple fixing treatments for the protective components during operation, effectively avoiding problems such as the protective components falling off due to improper installation. At the same time, during disassembly, the protective components can be quickly disassembled and replaced simply by pulling the pull ring and rotating the rotating ring in the forward direction, thus improving the overall maintenance efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0023] Figure 3 This is a longitudinal sectional view of the protective sleeve of this utility model;

[0024] Figure 4 This is a longitudinal sectional view of the positioning component of this utility model.

[0025] The markings in the attached diagram are as follows: 1. First housing; 2. Second housing; 3. Fixing base; 4. Fixing lug; 5. Input shaft; 6. Output shaft; 7. Pin; 8. Slot; 9. Fixing ring; 10. Protective component; 11. Rotating ring; 12. Protective sleeve; 13. Snap-fit ​​block; 14. Snap-fit ​​groove; 15. Positioning hole; 16. Positioning component; 17. Positioning cylinder; 18. Connecting rod; 181. Pull ring; 19. Top pressure spring; 20. Positioning pin. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This specific embodiment is a dustproof speed reducer, such as... Figure 1-4 As shown, the dustproof reducer includes a first housing 1 and a second housing 2. The first housing 1 and the second housing 2 are combined to form the reducer body. The first housing 1 and the second housing 2 are connected and fixed on adjacent sides by a fixing seat 3 and bolts. The bottom ends of the first housing 1 are symmetrically provided with fixing ears 4, and the fixing ears 4 are provided with base holes. A gear set is installed inside the reducer body. An input shaft 5 and an output shaft 6 are respectively provided on one side of the second housing 2. The front ends of the input shaft 5 and the output shaft 6 are respectively provided with pins 7 and slots 8. The power shaft and the rotating shaft of the reducer can be inserted and fixed as a whole through the provided pins 7 and slots 8. The outer edges of the input shaft 5 and the output shaft 6 are both provided with fixing rings 9. The fixing rings 9 are drilled with fixing holes for bolt fixing. The fixed rings 9 can ensure the stable connection and fixation of the power shaft and the rotating shaft.

[0028] The outer edges of the input shaft 5 and the output shaft 6 are provided with snap-fit ​​grooves 14. A protective component 10 for auxiliary dust prevention is snap-fitted and installed at the snap-fit ​​grooves 14. The protective component 10 includes rotating rings 11. There are two rotating rings 11. A protective sleeve 12 is rotatably embedded between the two rotating rings 11. A snap-fit ​​block 13 is protruding on the inner side of the rotating ring 11. The vertical cross section of the snap-fit ​​block 13 is T-shaped. The snap-fit ​​block 13 is inserted into the snap-fit ​​groove 14. The snap-fit ​​groove 14 is provided with an insertion port for the snap-fit ​​block 13 to be inserted and a positioning groove for the snap-fit ​​block 13 to slide and snap-fit. The insertion port is connected to the positioning groove, and the positioning groove is arc-shaped.

[0029] By using the protective component 10, the two rotating rings 11 are aligned with the insertion ports of the snap-fit ​​grooves 14 on the outer edges of the input shaft 5 and the output shaft 6 via the inner snap-fit ​​block 13. The rotating rings 11 are rotated counterclockwise to make the snap-fit ​​block 13 slide into the positioning groove, thus achieving axial fixation. At this time, the protective sleeve 12 between the two rotating rings 11 wraps around the shaft body, forming a dustproof barrier. During operation, the dustproof structure can effectively prevent dust from accumulating on the input and output discs, thus minimizing the risk of equipment malfunctions caused by dust accumulation on the input and output discs of the reducer. This solves the problem of the reducer body lacking a dustproof structure.

[0030] The protective sleeve 12 is provided in several units, which are adjacent to each other and pasted together. The vertical cross section of the protective sleeve 12 is hexagonal. After the protective sleeves 12 are combined, they form a corrugated tube shape, which can adaptively adjust the overall length of the protective part according to different work requirements.

[0031] Furthermore, a positioning component 16 is installed on the outer side of the rotating ring 11. Positioning holes 15 are provided at the outer edges of the input shaft 5 and the output shaft 6. The positioning holes 15 and the positioning component 16 are fitted together. The positioning component 16 includes a positioning cylinder 17 fixed on the rotating ring 11. A cavity is provided inside the positioning cylinder 17. A positioning pin 20 is slidably disposed in the cavity. One end of the positioning pin 20 extends out of the cavity and is inserted into the positioning hole 15. A connecting rod 18 is fixed on the positioning pin 20 inside the positioning cylinder 17. The end of the connecting rod 18 away from the positioning pin 20 extends out of the positioning cylinder 17. A pull ring 181 is fixed on the end of the connecting rod 18 extending out of the positioning cylinder 17. A pressure spring 19 is installed inside the cavity to assist the positioning pin 20 in pressing.

[0032] By utilizing the positioning component 16, the positioning hole 15, and the engaging snap-fit ​​block 13 and snap-fit ​​groove 14, the connecting rod 18 is pulled by the pull ring 181, causing the positioning pin 20 to compress the top pressure spring 19. After rotating the rotating ring 11 until the positioning hole 15 aligns with the positioning pin 20, the pull ring 181 is released, and the spring pressure spring 19 pushes the positioning pin 20 into the positioning hole 15. This allows for multiple fixing of the protective component 10 during operation, effectively preventing problems such as the protective component 10 falling off due to improper installation. Furthermore, during disassembly, the protective component 10 can be quickly disassembled and replaced simply by pulling the pull ring 181 and rotating the rotating ring 11, improving overall maintenance efficiency.

[0033] Working principle:

[0034] This dustproof reducer forms a sealed cavity by combining the first housing 1 and the second housing 2. The internal gear set (not marked) receives power through the input shaft 5 and transmits it to the output shaft 6.

[0035] During installation, the two rotating rings 11 are aligned with the insertion ports of the snap-fit ​​grooves 14 on the outer edges of the input shaft 5 and the output shaft 6 via the snap-fit ​​blocks 13 on the inner side. The rotating rings 11 are rotated counterclockwise to make the snap-fit ​​blocks 13 slide into the positioning groove to achieve axial fixation. At this time, the protective sleeve 12 between the two rotating rings 11 wraps around the shaft body to form a dustproof barrier.

[0036] The protective sleeve 12 adopts a hexagonal vertical cross-section design. Several protective sleeves 12 are arranged in a corrugated tube shape. Adjacent protective sleeves 12 are tightly connected by adhesive to eliminate axial gaps.

[0037] The positioning component 16 on the outside of the rotating ring 11 pulls the connecting rod 18 through the pull ring 181, causing the positioning pin 20 to drive the top pressure spring 19 to be compressed. After rotating the rotating ring 11 until the positioning hole 15 is aligned with the positioning pin 20, the pull ring 181 is released, and the spring presses the spring 19 to push the positioning pin 20 into the positioning hole 15, forming a second axial fixation to prevent the protective component 10 from loosening due to vibration.

[0038] The retaining rings 9 on the outer edges of the input shaft 5 and the output shaft 6 pass through the fixing holes with bolts to form a static sealing surface when connected to external equipment. The power shaft and rotating shaft of the reducer can be inserted and fixed as a whole through the set pins 7 and slots 8. The fixing ears 4 at the bottom of the first housing 1 are fixed to the mounting base through the base holes to reduce the impact of the whole machine vibration on the dustproof structure.

[0039] All technical features in this embodiment can be freely combined according to actual needs.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dustproof speed reducer, comprising a first housing (1) and a second housing (2), characterized in that, The first housing (1) and the second housing (2) are combined to form the reducer body. The first housing (1) and the second housing (2) are fixed together on one side by a fixing seat (3) and bolts. The reducer body is equipped with a gear set. The second housing (2) is provided with an input shaft (5) and an output shaft (6) on one side. The front ends of the input shaft (5) and the output shaft (6) are provided with a pin (7) and a slot (8) respectively. The input shaft (5) and the output shaft (6) are provided with snap-fit ​​grooves (14), and a protective component (10) for auxiliary dust prevention is snap-fitted and installed in the snap-fit ​​grooves (14). The protective component (10) includes a rotating ring (11), and there are two rotating rings (11). A protective sleeve (12) is rotatably embedded between the two rotating rings (11). A snap-fit ​​block (13) is provided on the inner side of the rotating ring (11), and the snap-fit ​​block (13) is engaged with the snap-fit ​​groove (14).

2. The dustproof speed reducer according to claim 1, characterized in that, The vertical cross section of the snap-fit ​​block (13) is T-shaped. The snap-fit ​​groove (14) is provided with an insertion port for inserting the snap-fit ​​block (13) and a positioning groove for sliding snap-fitting the snap-fit ​​block (13). The insertion port is connected to the positioning groove, and the positioning groove is arc-shaped.

3. The dustproof speed reducer according to claim 1, characterized in that, The protective sleeve (12) is provided in several units, and the several protective sleeves (12) are adjacent and pasted together. The vertical cross section of the protective sleeve (12) is hexagonal.

4. The dustproof speed reducer according to claim 1, characterized in that, A positioning component (16) is installed on the outer side of the rotating ring (11), and a positioning hole (15) is provided at the outer edge of the input shaft (5) and the output shaft (6). The positioning hole (15) and the positioning component (16) are connected in a fitting manner.

5. A dustproof speed reducer according to claim 4, characterized in that, The positioning assembly (16) includes a positioning cylinder (17) fixed on a rotating ring (11). The positioning cylinder (17) has a cavity inside, and a positioning pin (20) is slidably disposed in the cavity. One end of the positioning pin (20) extends out of the cavity and is inserted into a positioning hole (15). A connecting rod (18) is fixed on the positioning pin (20) inside the positioning cylinder (17). The end of the connecting rod (18) away from the positioning pin (20) extends out of the positioning cylinder (17). A pull ring (181) is fixed on the end of the connecting rod (18) extending out of the positioning cylinder (17). A pressure spring (19) is installed in the cavity to assist the positioning pin (20) in pressing.

6. A dustproof speed reducer according to claim 5, characterized in that, Both the input shaft (5) and the output shaft (6) have a retaining ring (9) protruding from their outer edges, and the retaining ring (9) has a fixing hole drilled on it for bolt fixing.

7. A dustproof speed reducer according to claim 1, characterized in that, The first housing (1) has symmetrically protruding fixing ears (4) at the bottom of both ends, and the fixing ears (4) have base holes.

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