Dustproof gear reducer shell

Through the design of dust-proof self-locking and oil-adding mechanism, the problem of fine dust entering the gear reducer is solved, and the sealing and automatic addition of lubricating oil is achieved, which extends the service life of the device and reduces costs.

CN223242024UActive Publication Date: 2025-08-19HANGZHOU RUIKAI MACHINERY
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Patent Information

Application Number
CN202422910561.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-08-19
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

The dustproof net of existing gear reducers cannot effectively prevent the entry of fine dust, causing the lubricant to accelerate drying, increase internal gear wear, and reduce the service life of the device.

Method used

The dust-proof self-locking mechanism and oil-adding mechanism are adopted, including dust-proof cover, drive motor, rotating shaft, dust-proof seat, bearing, dust-proof graphite brush, oil seal, oil-adding guide tube, damping particles and other components to improve sealing, prevent dust from entering, and automatic addition of lubricating oil and leakage are achieved through the oil-adding mechanism.

Benefits of technology

Effectively prevent small dust from entering, prevent lubricant from deteriorating, reduce gear wear, extend the service life of the device, and realize automatic replenishment of lubricant, avoid leakage and reduce costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dustproof gear reducer shell which comprises a dustproof self-locking mechanism and a driving motor installed on one side of the dustproof self-locking mechanism. An oil adding mechanism and damping particles mounted in the oil adding mechanism are arranged in the dustproof self-locking mechanism; the dustproof self-locking mechanism comprises a base, the top of the base is fixedly connected with a dustproof cover, and one side of the dustproof cover is fixedly connected with a driving motor; wherein the output end of the driving motor penetrates through the dustproof cover and is fixedly connected with a rotating shaft, a dustproof base is arranged on the outer side of one end of the rotating shaft, and the outer side of the dustproof base is connected with the dustproof cover in an attached mode; the sealing performance of the dustproof cover can be improved by arranging the dustproof self-locking mechanism, tiny dust is prevented from entering the speed reducer, automatic adding of lubricating oil can be achieved by arranging the oil adding mechanism, and leakage of the lubricating oil can be avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a dustproof gear reducer housing. Background Art

[0002] The reducer plays the role of matching speed and transmitting torque between the prime mover and the working machine or actuator. The reducer is a relatively precise machine. Its purpose is to reduce speed and increase torque.

[0003] Publication No. CN218326142U discloses a gear reducer with a dustproof function. The transmission chain and the transmission wheel cooperate to simultaneously drive two screws to rotate. The movable nut connected to the screw thread drives the wiper upward through the connecting column. As the wiper moves along the dustproof net following the connecting column, it can wipe and remove dust attached to the dustproof net. This ensures the normal heat exchange rate inside and outside the reducer housing and prevents the gear transmission components in the reducer housing from operating in an overheated environment for a long time, which would shorten their service life. However, this patent still has the following problems in actual use:

[0004] Although the gear reducer with dustproof function can wipe and remove the dust attached to the dustproof net by setting a wiping sheet, thereby ensuring the normal heat exchange rate inside and outside the reducer housing, the dustproof net cannot prevent fine dust from entering the reducer and accelerates the drying of the lubricating oil inside the reducer, thereby increasing the wear between its internal gears and reducing the service life of the device.

[0005] A dustproof gear reducer housing is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the present utility model is to provide a dust-proof gear reducer housing to solve the problem proposed in the above background technology that the dust attached to the dust-proof net can be wiped and removed by setting a wiping sheet, thereby ensuring the normal heat exchange rate inside and outside the reducer housing, but the dust-proof net cannot prevent fine dust from entering the reducer, and accelerates the drying of the lubricating oil inside the reducer, thereby increasing the wear between its internal gears and reducing the service life of the device.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a dustproof gear reducer housing, comprising a dustproof self-locking mechanism, and a drive motor installed on one side of the dustproof self-locking mechanism;

[0008] The dustproof self-locking mechanism is provided with an oil adding mechanism and damping particles installed inside the oil adding mechanism;

[0009] Also includes:

[0010] The dustproof self-locking mechanism includes a base, a dust cover is fixedly connected to the top of the base, and one side of the dust cover is fixedly connected to the drive motor;

[0011] The output end of the driving motor passes through the dust cover and is fixedly connected to a rotating shaft. A dust seat is provided on the outer side of one end of the rotating shaft, and the outer side of the dust seat is closely connected to the dust cover.

[0012] Among them, one side of the dustproof seat is snap-connected with a bearing, the inner wall of the bearing is fit-connected with the rotating shaft, and the side of the dustproof seat close to the bearing is snap-connected with a dustproof graphite brush, and the inner wall of the dustproof graphite brush is rotatably connected to the rotating shaft.

[0013] Preferably, an oil seal is fixedly connected to one side of the dustproof seat close to the dustproof graphite brush, the inner wall of the oil seal is rotatably connected to the rotating shaft, and pins are symmetrically fixedly connected to the upper and lower ends of the dustproof seat, and a groove is provided inside the pin.

[0014] Preferably, a protrusion is slidably connected to one side of the groove, one end of the protrusion is engaged with the dust cover, the other end of the protrusion is fixedly connected to a first spring, one end of the first spring is fixedly connected to the pin, and a sliding groove is opened at the center position inside the protrusion.

[0015] Preferably, the interior of the slide groove is slidably connected to a slider, the outer side of the slider is rotatably connected to a T-shaped rod, the outer side of the T-shaped rod is slidably connected to a latch, one end of the T-shaped rod is symmetrically fixedly connected to a second spring, and one end of each of the two second springs is fixedly connected to the latch.

[0016] Preferably, the oil adding mechanism includes a guide tube, the outer side of the guide tube is fixedly connected to the dust cover, one side of the inside of the guide tube is fixedly connected to a third spring, one end of the third spring is fixedly connected to a movable block, the outer side of the movable block away from one end of the third spring is snap-connected with a sealing ring, and the outer side of the sealing ring is fit-connected to the guide tube.

[0017] Preferably, the dust cover is provided with an oil storage tank near the bottom of the guide tube, the interior of the oil storage tank is slidably connected to a movable plate, the top side of the movable plate is fixedly connected to an oil-absorbing sponge, the bottom side of the movable plate is fixedly connected to a support column, the bottom end of the support column is sleeved, and the bottom end of the sleeve is fixedly connected to the dust cover.

[0018] Preferably, a fourth spring is fixedly connected to the bottom side of the sleeve, one end of the fourth spring is fitly connected to the support column, the top side of the sleeve is fixedly connected to the damping particles, an oil outlet groove is opened at the center of the bottom of the dust cover, a bolt cap is threadedly connected to the inner wall of the bottom end of the oil outlet groove, one end of the bolt cap is fixedly connected to the fifth spring, one end of the fifth spring is fixedly connected to a sealing block, and the outer side of the sealing block is fitly connected to the oil outlet groove.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the dustproof gear reducer housing can improve the sealing performance of the dust cover by providing a dustproof self-locking mechanism, thereby preventing fine dust from entering the reducer interior and causing the lubricating oil to deteriorate, thereby reducing the overall performance of the lubricating oil; and by providing an oil adding mechanism, not only can the automatic addition of lubricating oil be achieved, but also the leakage of lubricating oil can be prevented from causing accelerated wear of internal gears and shortening the service life of the reducer. The specific contents are as follows:

[0020] 1. The dustproof self-locking mechanism can improve the sealing performance of the dust cover and prevent fine dust from entering the reducer. The cooperation between the dustproof graphite brush and the rotating shaft can improve the sealing performance of the device and reduce the entry of impurities such as dust. The oil seal can further improve the sealing performance of the device and reduce the wear of the rotating shaft during rotation by lubricating. The engagement relationship between the protrusion and the dust cover can realize the rapid installation of the dust seat, which is convenient for the replacement of the bearing. By pressing the T-bar to drive the slider to move in the slide groove, the protrusion can be retracted into the groove, thereby releasing the limit of the protrusion on the dust cover and realizing the rapid removal of the dust seat.

[0021] 2. By setting up an oil adding mechanism, not only can the automatic addition of lubricating oil be achieved, but also the leakage of lubricating oil can be avoided. When the lubricating oil in the reducer is insufficient, the wear between its internal gears increases, which leads to an increase in the vibration frequency of the reducer, causing the movable plate in the oil storage tank to move up and down. The cooperation between the oil storage tank and the movable plate can make the lubricating oil in the oil-absorbing sponge drip from both sides onto the gears, thereby achieving automatic addition of lubricating oil and restoring the reducer to normal operating state. At the same time, the restoring force of the fourth spring is used to drive the movable plate to move upward and reset, thereby avoiding the dripping of lubricating oil. During the upward movement of the support column, it contacts the damping particles, thereby absorbing the rebound force of the fourth spring, which can improve the stability of the upward movement of the movable plate. Through the cooperation between the third spring and the movable block, the lubricating oil can be unidirectionally circulated in the guide tube, so that the lubricating oil can only enter the oil storage tank from the outside, thereby avoiding leakage of lubricating oil. The cooperation between the bolt and the sealing block can facilitate the collection of the lubricating oil at the bottom of the reducer, thereby achieving repeated use of the lubricating oil and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a schematic diagram of the front cross-section structure of the utility model;

[0023] Figure 2 For this utility model Figure 1 Enlarged structural diagram of the dustproof self-locking mechanism in the middle;

[0024] Figure 3 For this utility model Figure 1 Enlarged structural diagram of the oil filling mechanism;

[0025] Figure 4 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0026] In the figure: 1. Dust-proof self-locking mechanism; 101. Base; 102. Dust cover; 103. Drive motor; 104. Rotating shaft; 105. Dust seat; 106. Bearing; 107. Dust-proof graphite brush; 108. Oil seal; 109. Latch; 110. Groove; 111. Bump; 112. First spring; 113. Slide; 114. Slider; 115. T-bar; 116. Second spring; 2. Oil adding mechanism; 201. Guide tube; 202. Third spring; 203. Movable block; 204. Sealing ring; 205. Oil storage tank; 206. Movable plate; 207. Oil-absorbing sponge; 208. Support column; 209. Sleeve; 210. Fourth spring; 211. Damping particles; 212. Oil outlet tank; 213. Bolt cap; 214. Fifth spring; 215. Sealing block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-4 The utility model provides a technical solution: a dustproof gear reducer housing, including a dustproof self-locking mechanism 1, and a driving motor 103 installed on one side of the dustproof self-locking mechanism 1; an oiling mechanism 2 and damping particles 211 installed inside the oiling mechanism 2 are provided inside the dustproof self-locking mechanism 1; the dustproof self-locking mechanism 1 includes a base 101, a dust cover 102 is fixedly connected to the top of the base 101, and one side of the dust cover 102 is fixedly connected to the driving motor 103. The provision of the base 101 facilitates the installation of the entire device, and the dust cover 102 is made of aluminum alloy and has a good heat dissipation effect;

[0029] The output end of the driving motor 103 passes through the dust cover 102 and is fixedly connected to the rotating shaft 104. A dust seat 105 is provided on the outside of one end of the rotating shaft 104. The outer side of the dust seat 105 is closely connected to the dust cover 102. A bearing 106 is snap-connected to one side of the dust seat 105. The inner wall of the bearing 106 is closely connected to the rotating shaft 104. A dust-proof graphite brush 107 is snap-connected to the side of the dust seat 105 close to the bearing 106. The inner wall of the dust-proof graphite brush 107 is rotatably connected to the rotating shaft 104. The cooperation between the dust-proof graphite brush 107 and the rotating shaft 104 can improve the sealing performance of the device and reduce the entry of impurities such as dust.

[0030] An oil seal 108 is fixedly connected to one side of the dustproof seat 105 near the dustproof graphite brush 107. The inner wall of the oil seal 108 is rotatably connected to the rotating shaft 104. Latch pins 109 are symmetrically fixedly connected to the upper and lower ends of the dustproof seat 105. The latch pins 109 have grooves 110 formed inside. The oil seal 108 can further improve the sealing performance of the device and also has a lubricating effect to reduce wear on the rotating shaft 104 during rotation.

[0031] A protrusion 111 is slidably connected to one side of the groove 110. One end of the protrusion 111 is engaged with the dust cover 102. The other end of the protrusion 111 is fixedly connected to a first spring 112. One end of the first spring 112 is fixedly connected to the latch 109. A sliding groove 113 is provided at the center of the protrusion 111. By providing the first spring 112, the T-bar 115 can be always extended when no external force is applied, thereby fixing the position of the dust seat 105.

[0032] A slider 114 is slidably connected to the interior of the slide groove 113, and a T-shaped rod 115 is rotatably connected to the outer side of the slider 114. The outer side of the T-shaped rod 115 is slidably connected to the latch 109. One end of the T-shaped rod 115 is symmetrically fixedly connected to a second spring 116. One end of each of the two second springs 116 is fixedly connected to the latch 109. By providing the second spring 116, the T-shaped rod 115 can be automatically reset.

[0033] The oil filling mechanism 2 includes a guide tube 201. The outer side of the guide tube 201 is fixedly connected to the dust cover 102. A third spring 202 is fixedly connected to one side of the guide tube 201. One end of the third spring 202 is fixedly connected to a movable block 203. The outer side of the movable block 203 away from the end of the third spring 202 is engaged with a sealing ring 204. The outer side of the sealing ring 204 is closely connected to the guide tube 201. A through hole is formed on the side of the movable block 203 near the sealing ring 204 to facilitate the entry of lubricating oil.

[0034] An oil storage tank 205 is provided below the dust cover 102 near the guide tube 201. A movable plate 206 is slidably connected to the interior of the oil storage tank 205. An oil-absorbing sponge 207 is fixedly connected to the top side of the movable plate 206. A support column 208 is fixedly connected to the bottom side of the movable plate 206. A sleeve 209 is sleeved on the bottom end of the support column 208. The bottom end of the sleeve 209 is fixedly connected to the dust cover 102. The oil-absorbing sponge 207 can store some lubricating oil.

[0035] The bottom side of the sleeve 209 is fixedly connected to the fourth spring 210, one end of the fourth spring 210 is fitted and connected to the support column 208, the top side of the sleeve 209 is fixedly connected to the damping particles 211, and an oil outlet groove 212 is provided at the center of the bottom of the dust cover 102, and a bolt cap 213 is threadedly connected to the inner wall of the bottom end of the oil outlet groove 212, one end of the bolt cap 213 is fixedly connected to the fifth spring 214, one end of the fifth spring 214 is fixedly connected to the sealing block 215, the outer side of the sealing block 215 is fitted and connected to the oil outlet groove 212, and loosening the bolt cap 213 facilitates the collection and utilization of excess lubricating oil.

[0036] Working principle: Before using this dustproof gear reducer housing, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 4 As shown, first, lubricating oil is poured into the guide tube 201. The lubricating oil squeezes the movable block 203 and the third spring 202, thereby separating the sealing ring 204 from the guide tube 201, and the lubricating oil can enter the oil storage tank 205 through the through hole. When the lubricating oil in the reducer is insufficient, the wear between its internal gears increases, thereby increasing the vibration frequency of the reducer, causing the movable plate 206 in the oil storage tank to move up and down. The cooperation between the oil storage tank 205 and the movable plate 206 can make the lubricating oil in the oil-absorbing sponge 207 drip from both sides onto the gears, thereby realizing automatic addition of lubricating oil and restoring the reducer to normal operation.

[0037] At the same time, the restoring force of the fourth spring 210 is used to drive the movable plate 206 to move upward and reset, thereby preventing the lubricating oil from dripping. During the upward movement of the support column 208, it contacts the damping particles 211, thereby absorbing the rebound force of the fourth spring 210, which can improve the stability of the upward movement of the movable plate 206. The cooperation between the third spring 202 and the movable block 203 can achieve a one-way flow of lubricating oil in the guide tube 201, so that the lubricating oil can only enter the oil storage tank from the outside, thereby preventing the lubricating oil from leaking.

[0038] Finally, when the bearing 106 needs to be replaced, first press the T-bar 115 to drive the slider 114 to move in the slide groove 113, and the protrusion 111 can be retracted into the groove 110, thereby releasing the limit of the protrusion 111 on the dust cover 102, and the dust seat 105 can be quickly disassembled, thereby facilitating the replacement of the bearing 106.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dustproof gear reducer housing, comprising a dustproof self-locking mechanism (1), and a drive motor (103) mounted on one side of the dustproof self-locking mechanism (1); The dustproof self-locking mechanism (1) is provided with an oil adding mechanism (2) and damping particles (211) installed inside the oil adding mechanism (2); It is characterized in that Also includes: The dustproof self-locking mechanism (1) comprises a base (101), a dustproof cover (102) is fixedly connected to the top of the base (101), and one side of the dustproof cover (102) is fixedly connected to a driving motor (103); The output end of the driving motor (103) passes through the dust cover (102) and is fixedly connected to the rotating shaft (104); a dust seat (105) is provided on the outer side of one end of the rotating shaft (104); and the outer side of the dust seat (105) is closely connected to the dust cover (102); Among them, one side of the dustproof seat (105) is snap-connected with a bearing (106), the inner wall of the bearing (106) is fit-connected with the rotating shaft (104), and the side of the dustproof seat (105) close to the bearing (106) is snap-connected with a dustproof graphite brush (107), and the inner wall of the dustproof graphite brush (107) is rotatably connected to the rotating shaft (104).

2. The dustproof gear reducer housing according to claim 1, characterized in that: An oil seal (108) is fixedly connected to one side of the dustproof seat (105) close to the dustproof graphite brush (107), and the inner wall of the oil seal (108) is rotatably connected to the rotating shaft (104). Pins (109) are symmetrically fixedly connected to the upper and lower ends of the dustproof seat (105), and a groove (110) is provided inside the pin (109).

3. The dustproof gear reducer housing according to claim 2, characterized in that: A protrusion (111) is slidably connected to one side of the groove (110), one end of the protrusion (111) is snap-connected to the dust cover (102), the other end of the protrusion (111) is fixedly connected to a first spring (112), one end of the first spring (112) is fixedly connected to the latch (109), and a sliding groove (113) is provided at the center of the protrusion (111).

4. The dustproof gear reducer housing according to claim 3, characterized in that: The interior of the slide groove (113) is slidably connected to a slider (114), the outer side of the slider (114) is rotatably connected to a T-shaped rod (115), the outer side of the T-shaped rod (115) is slidably connected to the latch (109), one end of the T-shaped rod (115) is symmetrically fixedly connected to a second spring (116), and one end of each of the two second springs (116) is fixedly connected to the latch (109).

5. The dustproof gear reducer housing according to claim 1, characterized in that: The oil filling mechanism (2) comprises a guide tube (201), the outer side of the guide tube (201) is fixedly connected to the dust cover (102), one side of the interior of the guide tube (201) is fixedly connected to a third spring (202), one end of the third spring (202) is fixedly connected to a movable block (203), the outer side of the movable block (203) away from one end of the third spring (202) is engaged with a sealing ring (204), and the outer side of the sealing ring (204) is in close contact with the guide tube (201).

6. The dustproof gear reducer housing according to claim 5, characterized in that: An oil storage groove (205) is provided below the dust cover (102) near the guide tube (201), and a movable plate (206) is slidably connected to the interior of the oil storage groove (205), an oil-absorbing sponge (207) is fixedly connected to the top side of the movable plate (206), and a support column (208) is fixedly connected to the bottom side of the movable plate (206), and a sleeve (209) is sleeved on the bottom end of the support column (208), and the bottom end of the sleeve (209) is fixedly connected to the dust cover (102).

7. The dustproof gear reducer housing according to claim 6, characterized in that: A fourth spring (210) is fixedly connected to the bottom side of the sleeve (209), one end of the fourth spring (210) is fitted and connected to the support column (208), and the top side of the sleeve (209) is fixedly connected to the damping particles (211). An oil outlet groove (212) is provided at the center of the bottom of the dust cover (102), and a bolt cap (213) is threadedly connected to the inner wall of the bottom end of the oil outlet groove (212). One end of the bolt cap (213) is fixedly connected to a fifth spring (214), and one end of the fifth spring (214) is fixedly connected to a sealing block (215), and the outer side of the sealing block (215) is fitted and connected to the oil outlet groove (212).

Citation Information

Patent Citations

  • Gear reducer with dustproof function

    CN218326142U