Gear shaft grinding machining device for planetary reducer production

By designing a combination of clamping unit, grinding unit and dust removal unit, the problems of existing devices being unable to perform inclined grinding of helical gears and the inconvenience of observing gear shafts are solved, thus realizing flexible processing and efficient cleaning of helical gears.

CN223997993UActive Publication Date: 2026-03-17NANJING CHUANSHI HEAVY IND TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The existing gear shaft grinding equipment used in planetary reducer production cannot perform inclined grinding on the tooth lines of some helical gears, and the vertical setting of the fixing block makes it inconvenient to place and pick up the gear shaft, affecting rapid operation.

Method used

A processing device including a clamping unit, a grinding unit, and a dust removal unit was designed. It utilizes a servo motor, an electric push rod, and a lifting assembly to achieve pre-positioning, rotation, and position adjustment of the gear shaft. Combined with the tilt adjustment and dust removal functions of the grinding machine, it enables flexible processing and cleaning of helical gears.

Benefits of technology

It enables flexible placement and removal of helical gears, allowing for inclined grinding, which improves processing efficiency, facilitates chip removal, and enhances the practicality of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gear shaft grinding machining device for planetary reducer production, which comprises a working table, and a supporting block is fixedly connected to the lower side surface of the working table. The grinding machine is pushed by the second electric push rod to rotate in the supporting seat, so that a grinding head of the grinding machine can be obliquely adjusted to a specified angle, the electric sliding seat is started to push the supporting seat to move, the grinding machine is in contact with a gear shaft to start grinding, and meanwhile, the fan is started to clean dust generated by grinding. The gear shaft can be conveniently and flexibly placed and taken, and meanwhile, part of inclined tooth surfaces can be subjected to inclined grinding machining.
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Description

Technical Field

[0001] This utility model relates to the technical field of planetary reducers, and in particular to a gear shaft grinding device for planetary reducer production. Background Technology

[0002] Planetary reducers are efficient and compact gear transmission devices. Their core feature is the use of planetary gear structure, which enables high torque, high precision and low noise transmission. The gear shaft inside the planetary reducer needs to be ground during processing to ensure the machining accuracy and surface quality of the gear shaft.

[0003] Existing patent publication number CN216706930U discloses a novel gear shaft grinding device for planetary reducer production, belonging to the field of planetary reducers. Addressing the problems of the prior art, which requires an additional clamping mechanism and involves cumbersome operation due to its connection to an extrusion column, resulting in low practicality, the following solution is proposed: It includes two base plates and mounting frames welded to the outer walls of the top two ends of the base plates at the four corners of the bottom. A fixed plate is welded to the outer wall of one end of the mounting frame, and a protrusion is connected to the outer wall of the center of one side of the fixed plate via a bearing. A moving mechanism is provided inside the mounting frame, and the moving mechanism includes a screw connected at one end to the inner wall of one side of the mounting frame via a bearing. This utility model can clamp gear shafts of different specifications and simultaneously drive the gear shaft to rotate, facilitating adjustment of the grinding tool position and replacement of the grinding tool, improving work efficiency. It can also collect and clean debris, further enhancing practicality.

[0004] Existing technology can only grind conventional gears during processing. However, some helical gears have tooth lines that are not parallel to the axis but at a certain angle, making it impossible to perform inclined grinding to process the tooth surface. In addition, the existing technology's fixing blocks are set vertically on the side, making it difficult to observe the gear shaft when placing and picking it up. Furthermore, multiple sets of cylinders need to be activated, which affects the rapid placement and retrieval of the gear shaft. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the current gear shaft grinding device for planetary reducer production, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a gear shaft grinding device for planetary reducer production. It aims to solve the problem that "in the existing technology, only conventional gears can be ground during processing. However, the tooth lines of some helical gears are not parallel to the axis but are at a certain angle, so it is impossible to grind them at an angle to process the tooth surface. At the same time, the fixing block of the existing technology is set vertically on the side, which makes it inconvenient to observe the gear shaft when placing and picking it up, and requires the activation of multiple sets of cylinders, which affects the rapid placement and picking up of the gear shaft".

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0009] A gear shaft grinding apparatus for planetary gear reducer production includes:

[0010] A workbench, wherein a support block is fixedly connected to the lower surface of the workbench;

[0011] A clamping unit is provided on the upper side of the worktable. A lifting component is provided on the lower side of the clamping unit for controlling the lifting and adjusting of the clamping unit. A positioning component is provided inside the clamping unit for pre-positioning the gear shaft. A grinding unit is provided on one side of the clamping unit, and the grinding unit has the function of grinding the gear shaft.

[0012] A dust removal unit is located on the other side of the clamping unit and is used to clean grinding dust.

[0013] In a preferred embodiment of the gear shaft grinding device for planetary reducer production described in this utility model, the clamping unit includes a fixed frame disposed on the upper side of the worktable. A servo motor is fixedly connected to the lower surface of the fixed frame, and a fixed block is fixedly connected to the output end of the servo motor. The lower surface of the fixed block is rotatably connected to the fixed frame. Three sets of sliding grooves are provided on the outer surface of the fixed block. An electric push rod is disposed on the upper side of the fixed block and is fixedly connected to the fixed frame. A clamping sleeve is rotatably connected to the lower output end of the electric push rod. A threaded rod is fixedly connected to the lower surface of the fixed frame.

[0014] As a preferred embodiment of the gear shaft grinding device for planetary reducer production described in this utility model, the grinding unit includes an electric slide mounted on the upper surface of the worktable, and a support seat is movably connected to the upper side of the electric slide. A grinding machine is rotatably connected to the upper side of the support seat, and an electric push rod 2 is rotatably connected to the end of the grinding machine away from the fixed frame. The lower end of the electric push rod 2 is rotatably connected to the support seat.

[0015] As a preferred embodiment of the gear shaft grinding device for planetary reducer production described in this utility model, the dust removal unit includes a mounting plate that is tightly fitted to the upper surface of the worktable. A fan is fixedly connected to the upper surface of the mounting plate, and two sets of anchor bolts are threadedly connected to the surface of the mounting plate, and all anchor bolts are connected to the worktable by threads.

[0016] As a preferred embodiment of the gear shaft grinding device for planetary reducer production described in this utility model, the positioning component includes a fixed rod fixedly connected to the inner wall surface of three sets of slide grooves, and a sliding frame is slidably connected to the surface of each fixed rod. A positioning rod is fixedly connected to the end of each of the three sets of sliding frames that are close to each other, and the positioning rods are all arc-shaped. A positioning spring is fixedly connected to the surface of each of the three sets of sliding frames that are opposite to each other, and a fixing plate is fixedly connected to the other end of each positioning spring. All three sets of fixing plates are fixedly connected to the fixed rod.

[0017] In a preferred embodiment of the gear shaft grinding device for planetary reducer production described in this utility model, the lifting assembly includes a drive motor fixedly connected to the worktable, a rotating rod fixedly connected to the output end of the drive motor, and the surface of the rotating rod rotatably connected to the worktable. A gear one is fixedly connected to the upper end of the rotating rod, and a gear two is meshed with one side of the gear one. A threaded cylinder is fixedly connected inside the gear two, and the inner wall surface of the threaded cylinder is threadedly connected to the surface of the threaded rod.

[0018] In a preferred embodiment of the gear shaft grinding device for planetary reducer production described in this utility model, a fixed sleeve is fixedly connected to the surface of the threaded rod, and the height of the fixed sleeve is greater than the height of the servo motor.

[0019] In a preferred embodiment of the gear shaft grinding device for planetary reducer production described in this utility model, two sets of limiting rods are fixedly connected to the lower surface of the fixed frame, and the surfaces of the limiting rods are slidably connected to the worktable.

[0020] The beneficial effects of this utility model are:

[0021] The gear shaft is placed on the surface of the fixed block. The spring force of the positioning spring pushes the sliding frame to slide on the surface of the fixed rod, allowing the sliding frame to push the fixedly connected positioning rod to clamp the gear shaft. The gear shaft is pre-positioned on the surface of the fixed block. Then, the electric push rod is activated to move the clamping sleeve downwards, clamping and fixing the gear shaft with the clamping sleeve and the fixed block. Next, the servo motor is activated to rotate the fixed block, causing the fixed block to synchronously rotate the gear shaft and the clamping sleeve. Then, the drive motor is activated to rotate the rotating rod. Gear 1, fixedly connected to the rotating rod, drives gear 2, which is meshed with it, to rotate, causing the threaded cylinder fixedly connected to gear 2 to rotate. The internal rotation of the worktable causes the threaded rod connected to the threaded cylinder to move the fixed frame up and down under the limiting action of the limiting rod. This allows the gear shaft rotating inside the fixed frame to flexibly adjust its processing position. Finally, according to the processing requirements, the electric push rod two is activated, which pushes the grinding machine to rotate inside the support base. This allows the grinding head of the grinding machine to be tilted to a specified angle. The electric slide is activated to push the support base to move, so that the grinding machine contacts the gear shaft and begins grinding. At the same time, the fan is activated to clean the dust produced during grinding. This not only facilitates the flexible placement and removal of the gear shaft, but also enables tilt grinding of some tilted tooth surfaces. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0023] Figure 1 This is a three-dimensional structural schematic diagram of a gear shaft grinding device for planetary reducer production proposed in this utility model.

[0024] Figure 2 for Figure 1 A rear view diagram of the three-dimensional structure;

[0025] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure cross-section;

[0026] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figure 5 This is a three-dimensional structural diagram of the positioning component.

[0028] In the diagram: 100, worktable; 101, support block; 200, clamping unit; 201, fixed frame; 202, servo motor; 203, fixed block; 204, slide rail; 205, positioning assembly; 205a, fixed rod; 205b, sliding frame; 205c, positioning rod; 205d, fixed piece; 205e, positioning spring; 206, electric push rod one; 207, clamping sleeve; 208, threaded rod; 209 209a. Lifting assembly; 209b. Drive motor; 209c. Rotating rod; 209c. Gear 1; 209d. Gear 2; 209e. Threaded cylinder; 211. Limiting rod; 212. Fixing sleeve; 300. Grinding unit; 301. Electric slide; 302. Support base; 303. Grinding machine; 304. Electric push rod 2; 400. Dust removal unit; 401. Fan; 402. Mounting plate; 403. Anchor bolt. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0032] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0033] Reference Figure 1-5 This utility model provides a gear shaft grinding device for planetary reducer production, comprising:

[0034] Workbench 100, with a support block 101 fixedly connected to the lower surface of workbench 100;

[0035] A clamping unit 200 is provided on the upper side of the worktable 100. A lifting component 209 is provided on the lower side of the clamping unit 200 for controlling the lifting and adjusting of the clamping unit 200. A positioning component 205 is provided inside the clamping unit 200 for pre-positioning the gear shaft. A grinding unit 300 is provided on one side of the clamping unit 200, and the grinding unit 300 has the function of grinding the gear shaft.

[0036] Dust removal unit 400 is located on the other side of clamping unit 200 and is used to clean grinding dust.

[0037] The clamping unit 200 includes a fixed frame 201 mounted on the upper side of the worktable 100. A servo motor 202 is fixedly connected to the lower surface of the fixed frame 201, and a fixed block 203 is fixedly connected to the output end of the servo motor 202. The lower surface of the fixed block 203 is rotatably connected to the fixed frame 201. Three sets of sliding grooves 204 are formed on the outer surface of the fixed block 203. An electric push rod 206 is mounted on the upper side of the fixed block 203 and is fixedly connected to the fixed frame 201. A clamping sleeve 207 is rotatably connected to the lower output shaft surface of the electric push rod 206. A threaded rod 208 is fixedly connected to the lower surface of the fixed frame 201. By pushing the clamping sleeve 207 with the electric push rod 206, the gear shaft can be fixed to the surface of the fixed block 203. Then, the servo motor 202 drives the fixed block 203 to rotate the gear shaft.

[0038] Furthermore, the grinding unit 300 includes an electric slide 301 mounted on the upper surface of the worktable 100, and a support 302 is movably connected to the upper side of the electric slide 301. A grinding machine 303 is rotatably connected to the upper side of the support 302, and an electric push rod 304 is rotatably connected to one end of the grinding machine 303 away from the fixed frame 201. The lower end of the electric push rod 304 is rotatably connected to the support 302, which can control the grinding machine 303 to rotate inside the support 302 and control the grinding end of the grinding machine 303 to adjust the tilt angle up and down.

[0039] Furthermore, the dust removal unit 400 includes a mounting plate 402 that fits tightly against the upper surface of the workbench 100. A fan 401 is fixedly connected to the upper surface of the mounting plate 402. Two sets of anchor bolts 403 are threadedly connected to the surface of the mounting plate 402, and the anchor bolts 403 are all connected to the workbench 100 by threads, which allows the fan 401 to be flexibly disassembled. The output end of the fan 401 is located on the same horizontal plane as the grinding head of the grinding machine 303, which facilitates the processing of the gear shaft surface with the grinding head of the grinding machine 303.

[0040] Furthermore, the positioning component 205 includes a fixed rod 205a fixedly connected to the inner wall surface of the three sets of sliding grooves 204, and a sliding frame 205b slidably connected to the surface of each fixed rod 205a. A positioning rod 205c is fixedly connected to the end of each of the three sets of sliding frames 205b that is close to each other, and the positioning rod 205c is arc-shaped. A positioning spring 205e is fixedly connected to the surface of each of the three sets of sliding frames 205b that is opposite to each other, and a fixing piece 205d is fixedly connected to the other end of each of the positioning springs 205e. The fixing pieces 205d are fixedly connected to the fixed rod 205a. The sliding frame 205b is dragged to slide on the surface of the fixed rod 205a by the elastic force of the positioning spring 205e, so that the positioning rod 205c can pre-position the gear shaft.

[0041] Furthermore, the lifting assembly 209 includes a drive motor 209a fixedly connected to the worktable 100. The output shaft of the drive motor 209a is fixedly connected to a rotating rod 209b, and the surface of the rotating rod 209b is rotatably connected to the worktable 100. A gear 1 209c is fixedly connected to the upper end of the rotating rod 209b, and a gear 209d is meshed with one side of the gear 1 209c. A threaded cylinder 209e is fixedly connected inside the gear 209d. The outer surface of the threaded cylinder 209e is rotatably connected to the worktable 100, and the inner wall surface of the threaded cylinder 209e is threadedly connected to the surface of the threaded rod 208. The drive motor 209a can drive the threaded cylinder 209e to rotate, causing the threaded rod 208 to push the fixed frame 201 to move up and down, thereby adjusting the processing position of the gear shaft.

[0042] Furthermore, a fixing sleeve 212 is fixedly connected to the surface of the threaded rod 208, and the height of the fixing sleeve 212 is greater than the height of the servo motor 202, which limits the descent height of the fixing frame 201 and prevents the servo motor 202 from being damaged by pressure.

[0043] Furthermore, two sets of limiting rods 211 are fixedly connected to the lower surface of the fixed frame 201, and the surfaces of the limiting rods 211 are slidably connected to the worktable 100, thus having a limiting function.

[0044] During use, the gear shaft is placed on the surface of the fixed block 203. The elastic force of the positioning spring 205e pushes the sliding frame 205b to slide on the surface of the fixed rod 205a, allowing the sliding frame 205b to push the fixedly connected positioning rod 205c to clamp the gear shaft and pre-position it on the surface of the fixed block 203. Then, the electric push rod 206 is activated to push the clamping sleeve 207 downward, so that the clamping sleeve 207 and the fixed block 203 clamp and fix the gear shaft. Next, the servo motor 202 is activated to drive the fixed block 203 to rotate, so that the fixed block 203 drives the gear shaft and the clamping sleeve 207 to rotate synchronously. Then, the drive motor 209a is activated to drive the rotating rod 209b to rotate, and the gear 209c fixedly connected to the rotating rod 209b drives the gear to mesh. The rotation of gear 209d, which is connected to gear 209d, causes the threaded cylinder 209e, which is fixedly connected to gear 209d, to rotate inside the worktable 100. This causes the threaded rod 208, which is threadedly connected to the threaded cylinder 209e, to drive the fixed frame 201 to move up and down under the limiting action of the limiting rod 211. This allows the gear shaft rotating inside the fixed frame 201 to flexibly adjust its processing position. Finally, according to the processing requirements, the electric push rod 304 is activated, which pushes the grinding machine 303 to rotate inside the support base 302. This allows the grinding head of the grinding machine 303 to be tilted and adjusted to a specified angle. The electric slide 301 is activated to push the support base 302 to move, so that the grinding machine 303 contacts the gear shaft and begins grinding. At the same time, the fan 401 is activated to clean the dust produced during grinding.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A gear shaft grinding device for producing a planetary reducer, characterized by: Include: Workbench (100), the lower side surface of the workbench (100) is fixedly connected with a support block (101); Clamping unit (200), the upper side of the workbench (100) is provided with a lifting assembly (209), which is used for controlling the lifting adjustment of the clamping unit (200), the inside of the clamping unit (200) is provided with a positioning assembly (205), which is used for pre-positioning the gear shaft, one side of the clamping unit (200) is provided with a grinding unit (300), the grinding unit (300) has the function of grinding the gear shaft; Dust removal unit (400), the dust removal unit (400) is arranged on the other side of the clamping unit (200), which is used for cleaning the dust of grinding.

2. A gear shaft grinding device for producing a planetary reducer according to claim 1, characterized in that: The clamping unit (200) includes a fixed frame (201) arranged on the upper side of the workbench (100), the lower side surface of the fixed frame (201) is fixedly connected with a servo motor (202), and the output end of the servo motor (202) is fixedly connected with a fixed block (203), the lower side surface of the fixed block (203) is rotatably connected with the fixed frame (201), the outer side surface of the fixed block (203) is provided with three groups of sliding grooves (204), the upper side of the fixed block (203) is provided with an electric push rod (206), and the electric push rod (206) is fixedly connected with the fixed frame (201), the lower side output end of the electric push rod (206) is rotatably connected with a clamping sleeve (207), the lower side surface of the fixed frame (201) is fixedly connected with a threaded rod (208).

3. A gear shaft grinding device for producing a planetary reducer according to claim 2, characterized in that: The grinding unit (300) includes an electric sliding seat (301) mounted on the upper side surface of the workbench (100), and the upper side of the electric sliding seat (301) is movably connected with a support seat (302), the upper side of the support seat (302) is rotatably connected with a grinding machine (303), and the end of the grinding machine (303) away from the fixed frame (201) is rotatably connected with an electric push rod (304), the lower end of the electric push rod (304) is rotatably connected with the support seat (302).

4. A gear shaft grinding device for producing a planetary reducer according to claim 3, characterized in that: The dust removal unit (400) includes a mounting plate (402) closely fitted with the upper side surface of the workbench (100), the upper side surface of the mounting plate (402) is fixedly connected with a fan (401), the surface of the mounting plate (402) is threadedly connected with two groups of anchor bolts (403), and the anchor bolts (403) are connected with the workbench (100) by threads.

5. A gear shaft grinding device for producing a planetary reducer according to claim 4, characterized in that: The positioning assembly (205) comprises a fixed rod (205a) fixedly connected with the inner wall surface of the three sets of sliding grooves (204), the surface of the fixed rod (205a) is slidingly connected with a sliding frame (205b), one end of the three sets of sliding frames (205b) close to each other is fixedly connected with a positioning rod (205c), the positioning rod (205c) is in an arc shape, the surface of the three sets of sliding frames (205b) away from each other is fixedly connected with a positioning spring (205e), the other end of the positioning spring (205e) is fixedly connected with a fixed sheet (205d), and the three sets of fixed sheets (205d) are fixedly connected with the fixed rod (205a).

6. A gear shaft grinding device for producing a planetary reducer according to claim 1, characterized in that: The lifting assembly (209) comprises a driving motor (209a) fixedly connected with the workbench (100), the output end of the driving motor (209a) is fixedly connected with a rotating rod (209b), the surface of the rotating rod (209b) is rotatably connected with the workbench (100), the upper end of the rotating rod (209b) is fixedly connected with a gear one (209c), one side of the gear one (209c) is meshedly connected with a gear two (209d), the inside of the gear two (209d) is fixedly connected with a threaded barrel (209e), and the inner wall surface of the threaded barrel (209e) is screwedly connected with the surface of a threaded rod (208).

7. A gear shaft grinding device for producing a planetary reducer according to claim 5, characterized in that: The surface of the threaded rod (208) is fixedly connected with a fixed sleeve (212), and the height size of the fixed sleeve (212) is greater than that of the servo motor (202).

8. A gear shaft grinding device for producing a planetary reducer according to claim 5, characterized in that: The lower surface of the fixed frame (201) is fixedly connected with two sets of limiting rods (211), and the surface of the limiting rod (211) is slidingly connected with the workbench (100).

Citation Information

Patent Citations

  • Novel gear shaft grinding machining device for planetary reducer production

    CN216706930U