A reducer lubricating grease filling device

By designing a grease filling device for a speed reducer, a combination of a rotating shaft, a horizontal support rod, and a vertical support rod is used to replace manual holding of the filling gun, achieving uniform grease filling, solving the problem of uneven grease filling, and improving filling efficiency and adaptability.

CN224397581UActive Publication Date: 2026-06-23ZHEJIANG FEIQIANG TRANSMISSION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-10
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing grease filling operations require workers to maintain the same posture for a long time while holding the injection gun, which leads to limb fatigue and an inability to hold the gun steadily, resulting in uneven grease filling.

Method used

A grease filling device for a speed reducer was designed. By combining a rotating shaft, a horizontal support rod, a vertical support rod, and a grease gun, the device replaces the manual holding of the grease gun. The position of the grease inlet is adjusted by the rotation of the disc and the movement of the support rod, and the grease is continuously supplied by the infusion pump. This device is suitable for speed reducer cavities of different sizes and shapes.

Benefits of technology

It achieves uniform grease filling, reduces worker fatigue, improves filling efficiency and adaptability, and can be adapted to reducer cavities of different sizes and shapes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of lubricating grease filling devices of speed reducer, including processing platform and liquid injection gun, processing platform is connected with disc and slide rail, disc axle is connected in the top surface of processing platform, and slide rail is interval arranged below disc;The left and right sides of slide rail are equipped with sliding slot, and top surface is equipped with multiple positioning holes, and sliding block is slidably connected on sliding slot, and horizontal rotating shaft is connected between sliding block, and horizontal supporting rod is connected in horizontal rotating shaft axle, and the bottom surface of horizontal supporting rod is equipped with inserting rod, and vertical supporting rod is connected in horizontal supporting rod, and liquid injection gun is connected in the top of vertical supporting rod, and the liquid outlet of liquid injection gun is aligned above disc;It is sequentially connected by rotating shaft, horizontal supporting rod, vertical supporting rod and liquid injection gun, instead of artificial holding liquid injection gun, horizontal supporting rod is moved along sliding slot by pulling, the size of the circular track of injection lubricating grease is adjusted, the coverage of injection port position to disc area is increased, it is convenient to inject liquid to the speed reducer of different size cavity, and the uniformity of injection is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of grease filling devices, and in particular to a grease filling device for a speed reducer. Background Technology

[0002] During the manufacturing process of speed reducers, adding grease inside the reducer reduces friction and wear between gears, prevents corrosion and oxidation of gear surfaces, extends gear life, and reduces the frequency of equipment maintenance and replacement. Current grease application requires manual operation, holding the injection gun downwards and aiming it towards the inner wall of the speed reducer to inject grease, facilitating deep penetration into the gap between the speed reducer housing and the internal gears. However, this method requires workers to maintain the same posture for extended periods, easily causing fatigue and difficulty in maintaining a stable grip, resulting in uneven grease application. Therefore, designing a speed reducer grease application device that can replace manual gripping of the injection gun and ensure stable injection positioning has become an urgent technical problem to be solved. Summary of the Invention

[0003] To solve the above problems, this utility model provides a grease filling device for a speed reducer.

[0004] The present invention provides a grease filling device for a speed reducer, comprising a processing table and a grease gun. The processing table is connected to a disc and a slide rail. The disc is horizontally rotatable and is pivotally connected to the top surface of the processing table. The slide rail is spaced below the disc. The slide rail has grooves on its left and right sides and multiple positioning holes on its top surface. Sliding blocks are slidably connected to the grooves. A horizontal rotating shaft is connected between the sliding blocks along the width direction of the groove. The length direction of the groove and the arrangement direction of the positioning holes are both radially arranged along the disc. A horizontal support rod is pivotally connected to the horizontal rotating shaft. The bottom surface of the horizontal support rod has a rod that matches the position of the positioning hole. The horizontal support rod extends from below the disc and is connected to an upwardly extending vertical support rod. The grease gun is connected to the top of the vertical support rod, and the outlet of the grease gun is aligned with the top of the disc.

[0005] With the above structure, the rotating shaft, horizontal support rod, vertical support rod, and injection gun are connected in sequence, replacing the manual holding of the injection gun. The injection gun's outlet is aligned above the disc, and the reducer to be lubricated is placed at the center of the disc. The top of the reducer is opened to expose its internal cavity. The worker then turns on the injection gun, outputting lubricant from its outlet. At this point, the worker only needs to push the disc to rotate horizontally around the shaft, causing the injection gun's outlet to move relative to the reducer cavity along a circular path, injecting lubricant into the reducer. By lifting the injection gun upwards without starting it, the injection gun drives the connected vertical and horizontal support rods. The horizontal support rod rotates upwards around the horizontal rotating shaft, and the bottom insert is pulled out of the positioning hole. The horizontal support rod is pushed and moved along the length of the slide groove. During this process, the horizontal support rod drives the horizontal rotating shaft, which in turn pulls the slider along the slide groove. The slide groove is set radially along the length of the disc. After the horizontal support rod moves, it changes the distance between the outlet of the injection gun and the center of the disc. Finally, after the insertion rod is aligned with the new positioning hole, the lifted injection gun is lowered, and the insertion rod is inserted into the newly aligned positioning hole, restricting the horizontal movement of the horizontal support rod and keeping the injection gun in its current position. This adjusts the size of the circular trajectory for injecting grease. In conjunction with the horizontal rotation of the disc, the coverage area of ​​the injection port on the disc area is increased, making it easier to inject grease into reducers with cavities of different sizes. It also allows for single-point injection of grease when dealing with irregularly shaped reducer cavities.

[0006] As a further improvement of this utility model, the injection gun is connected to an infusion tube, the infusion tube is connected to a storage tank, the storage tank is filled with lubricating grease, an infusion pump is installed on the storage tank, the inlet of the infusion pump is connected to the bottom of the storage tank, and the outlet is connected to the infusion tube.

[0007] With the above structure, by turning on the infusion pump, the inlet of the infusion pump draws in the grease from the bottom of the storage tank, and the grease is fed into the infusion tube from the outlet, and then into the injection gun from the infusion tube. When injecting grease into the reducer, the grease can be continuously replenished to the injection gun, which can improve the efficiency when connecting the injection operation.

[0008] As a further improvement of this utility model, the vertical support rod includes a lower rod, an upper rod, and a positioning pin. The bottom end of the lower rod is connected to the horizontal support rod, and the top surface is provided with a vertically downward telescopic hole. The inner wall of the telescopic hole is provided with a plurality of first pin holes that extend to the outer side of the lower rod. The first pin holes are arranged at equal intervals along the vertical direction. The top end of the upper rod is connected to the injection gun, and the bottom end is inserted into the telescopic hole. The side of the upper rod is provided with a second pin hole that matches the position of the first pin holes. The size and shape of the positioning pin, the first pin hole, and the second pin hole are all matched.

[0009] With the above structure, the first pin holes are arranged at equal intervals in the vertical direction, and the heights of the different first pin holes are all different. The bottom end of the upper rod is inserted into the telescopic hole. Pulling the upper rod vertically along the telescopic hole allows the second pin holes on the side of the upper rod to be aligned with the first pin holes at different heights. Then, using a positioning pin, the first pin hole and the second pin hole are inserted sequentially from the outside of the lower rod to position the upper rod relative to the lower rod, thereby achieving the length adjustment of the vertical support rod and better matching the reducer with different cavities.

[0010] As a further improvement of this utility model, the top surface of the disc is provided with anti-slip texture, which includes annular grooves that are concentric with the disc and nested sequentially.

[0011] With the above structure, the top surface of the disc has anti-slip texture to prevent the reducer from sliding on the disc when the worker pushes the disc to rotate horizontally around the axis, thus avoiding uneven grease distribution in the reducer cavity due to changes in the position of the injected grease.

[0012] As a further improvement of this utility model, the lower end face of the insertion rod is provided with a raised hemispherical surface.

[0013] With the above structure, the lower end face of the insertion rod has a raised hemispherical surface, which makes it easier to align the insertion rod with the positioning hole and insert it into the hole when it is inserted. Attached Figure Description

[0014] Figure 1 The diagram shown is a structural schematic of this utility model.

[0015] Figure 2 The diagram shown is a schematic of the exploded structure of a vertical support rod.

[0016] Figure 3 The diagram shown is a cross-sectional view of the slide rail and horizontal support rod.

[0017] Figure 4 The diagram shows the slide and slider structure of part A.

[0018] Figure 5 The diagram shows the positioning hole and insertion rod structure of part B.

[0019] 1-Processing table, 2-Injection gun, 3-Disc, 4-Slide rail, 5-Slide groove, 6-Positioning hole, 7-Slider, 8-Horizontal rotating shaft, 9-Horizontal support rod, 10-Insertion rod, 11-Vertical support rod, 12-Infusion tube, 13-Reservoir tank, 14-Infusion pump, 15-Lower rod, 16-Upper rod, 17-Positioning pin, 18-Telescopic hole, 19-First pin hole, 20-Second pin hole, 21-Anti-slip texture, 22-Hemispherical surface. Detailed Implementation

[0020] like Figures 1-5The device for adding grease to a speed reducer includes a processing table 1 and a grease gun 2. The processing table 1 is connected to a disc 3 and a slide rail 4. The disc 3 is horizontally rotatable and is pivotally connected to the top surface of the processing table 1. The slide rail 4 is spaced below the disc 3. The slide rail 4 has grooves 5 on its left and right sides and multiple positioning holes 6 on its top surface. Sliding blocks 7 are slidably connected to the grooves 5. Horizontal rotating shafts 8 are connected between the sliding blocks 7 along the width direction of the grooves 5. The length direction of the grooves 5 and the arrangement direction of the positioning holes 6 are both radially arranged along the disc 3. Horizontal rotating shafts 8 are pivotally connected to horizontal support rods 9. The bottom surface of the horizontal support rods 9 has inserts 10 that match the positions of the positioning holes 6. The horizontal support rods 9 extend from below the disc 3 and are connected to vertical support rods 11 that extend upwards. The grease gun 2 is connected to the top of the vertical support rod 11, and the outlet of the grease gun 2 is aligned above the disc 3.

[0021] The injection gun 2 is connected in sequence via a rotating shaft, horizontal support rod 9, vertical support rod 11, and injection gun 2. Instead of manually holding the injection gun 2, the worker aligns the outlet of the injection gun 2 above the disc 3. The reducer to be lubricated is then placed at the center of the disc 3, with the top of the reducer open to expose its internal cavity. The worker then turns on the injection gun 2, outputting lubricant from its outlet. At this point, the worker simply pushes the disc 3 to rotate horizontally around the shaft, causing the outlet of the injection gun 2 to move relative to the reducer cavity along a circular path, injecting lubricant into the reducer. Alternatively, without starting the injection gun 2, lifting it upwards causes the injection gun 2 to drive the connected vertical support rod 11 and horizontal support rod 9. The horizontal support rod 9 rotates upwards around the horizontal rotating shaft 8, causing the bottom insert rod 10 to be pulled out of the positioning hole 6. Then, the horizontal support rod 11 is pushed upwards... The support rod 9 is pulled to move along the length of the slide groove 5. During this process, the horizontal support rod 9 drives the horizontal rotating shaft 8, which in turn pulls the slider 7 to move along the slide groove 5. The slide groove 5 is radially arranged along the length of the disc 3. After the horizontal support rod 9 moves, it changes the distance between the outlet of the injection gun 2 and the center of the disc 3. Finally, after the insertion rod 10 is aligned with the new positioning hole 6, the lifted injection gun 2 is lowered, and the insertion rod 10 is inserted into the newly aligned positioning hole 6, restricting the horizontal movement of the horizontal support rod 9 and keeping the injection gun 2 in its current position. This adjusts the size of the circular trajectory for injecting grease. In conjunction with the horizontal rotation of the disc 3, it increases the coverage area of ​​the injection port on the disc 3, making it easier to inject grease into reducers with cavities of different sizes. It also allows for single-point injection of grease when dealing with irregularly shaped reducer cavities.

[0022] The injection gun 2 is connected to an infusion tube 12, which is connected to a storage tank 13. The storage tank 13 contains lubricating grease, and an infusion pump 14 is installed on the storage tank 13. The inlet of the infusion pump 14 is connected to the bottom of the storage tank 13, and the outlet is connected to the infusion tube 12.

[0023] By turning on the infusion pump 14, the inlet of the infusion pump 14 draws in the grease from the bottom of the storage tank 13, and the grease is fed into the infusion tube 12 from the outlet, and then into the injection gun 2 from the infusion tube 12. When injecting grease into the reducer, the grease can be continuously replenished to the injection gun 2, which can improve the efficiency when connecting the injection operation.

[0024] The vertical support rod 11 includes a lower rod 15, an upper rod 16, and a positioning pin 17. The bottom end of the lower rod 15 is connected to the horizontal support rod 9, and the top surface is provided with a vertically downward telescopic hole 18. The inner wall of the telescopic hole 18 is provided with a plurality of first pin holes 19 that extend to the outer side of the lower rod 15. The first pin holes 19 are arranged at equal intervals along the vertical direction. The top end of the upper rod 16 is connected to the injection gun 2, and the bottom end is inserted into the telescopic hole 18. The side of the upper rod 16 is provided with a second pin hole 20 that matches the position of the first pin hole 19. The size and shape of the positioning pin 17, the first pin hole 19, and the second pin hole 20 are all matched.

[0025] The first pin holes 19 are arranged at equal intervals in the vertical direction, and the heights of the different first pin holes 19 are all different. The bottom end of the upper rod 16 is inserted into the telescopic hole 18. Pulling the upper rod 16 vertically along the telescopic hole 18 allows the second pin holes 20 on the side of the upper rod 16 to be aligned with the first pin holes 19 at different heights. Then, the positioning pin 17 is used to insert the first pin hole 19 and the second pin hole 20 in sequence from the outside of the lower rod 15 to position the upper rod 16 relative to the lower rod 15, thereby realizing the length adjustment of the vertical support rod 11 and better matching the reducer with different cavities.

[0026] The top surface of the disc 3 is provided with anti-slip texture 21, which includes annular grooves that are concentric with the disc 3 and nested in sequence.

[0027] The top surface of the disc 3 is provided with anti-slip texture 21 to prevent the reducer from sliding on the disc 3 when the worker pushes the disc 3 to rotate horizontally around the axis, thus avoiding uneven grease distribution in the reducer cavity due to changes in the position of the injected grease.

[0028] The lower end face of the insertion rod 10 is provided with a raised hemispherical surface 22.

[0029] The lower end face of the insertion rod 10 has a raised hemispherical surface 22, which makes it easier to align the insertion rod 10 with the positioning hole 6 and insert it into the hole when it is inserted.

Claims

1. A grease filling device for a speed reducer, characterized in that: The system includes a processing table (1) and an injection gun (2). The processing table (1) is connected to a disc (3) and a slide rail (4). The disc (3) is horizontally rotatable and is mounted on the top surface of the processing table (1). The slide rail (4) is spaced below the disc (3). The slide rail (4) has grooves (5) on its left and right sides and multiple positioning holes (6) on its top surface. Sliding blocks (7) are slidably connected to the grooves (5). Horizontal rotating shafts (8) are connected between the sliding blocks (7) along the width direction of the grooves (5). The length direction and the arrangement direction of the positioning holes (6) are both set radially along the disk (3). The horizontal rotating shaft (8) is connected to a horizontal support rod (9). The bottom surface of the horizontal support rod (9) is provided with a plug (10) that matches the position of the positioning holes (6). The horizontal support rod (9) extends from the bottom of the disk (3) and is connected to an upwardly extending vertical support rod (11). The injection gun (2) is connected to the top of the vertical support rod (11), and the outlet of the injection gun (2) is aligned with the top of the disk (3).

2. The gearbox grease filling device according to claim 1, characterized in that: The injection gun (2) is connected to an infusion tube (12), which is connected to a storage tank (13). The storage tank (13) is filled with grease, and an infusion pump (14) is installed on the storage tank (13). The inlet of the infusion pump (14) is connected to the bottom of the storage tank (13), and the outlet is connected to the infusion tube (12).

3. The gearbox grease filling device according to claim 2, characterized in that: The vertical support rod (11) includes a lower rod (15), an upper rod (16), and a positioning pin (17). The bottom end of the lower rod (15) is connected to the horizontal support rod (9), and the top surface is provided with a vertically downward telescopic hole (18). The inner wall of the telescopic hole (18) is provided with multiple first pin holes (19) that extend to the outer side of the lower rod (15). The first pin holes (19) are arranged at equal intervals along the vertical direction. The top end of the upper rod (16) is connected to the injection gun (2), and the bottom end is inserted into the telescopic hole (18). The side of the upper rod (16) is provided with a second pin hole (20) that matches the position of the first pin hole (19). The size and shape of the positioning pin (17), the first pin hole (19), and the second pin hole (20) are all matched.

4. The gear reducer grease filling device according to claim 2, characterized in that: The top surface of the disc (3) is provided with anti-slip texture (21), which includes annular grooves that are concentric with the disc (3) and nested in sequence.

5. The gearbox grease filling device according to claim 2, characterized in that: The lower end face of the insertion rod (10) is provided with a raised hemispherical surface (22).