A gear shaft machining device for speed reducer production

Abstract

This invention discloses a gear shaft processing device for speed reducer production, relating to the technical field of speed reducer processing equipment. It includes: a base platform, a strip plate, a rack, a threaded rod, a movable base, a transmission gear set, and a grinding block. The top surface of the base platform has a bearing for horizontally mounting the gear shaft, with an accommodating area between the bearings to accommodate gear shaft tooth segments. The strip plate is slidably mounted on the base platform and can slide in and out of the accommodating area along the direction perpendicular to the gear shaft axis. The rack is arranged on the top of the strip plate and can mesh with the gear shaft tooth segments. The threaded rod is rotatably mounted on the base platform and parallel to the gear shaft axis. When the strip plate moves, the threaded rod is driven to rotate through the transmission gear set. The movable base is threaded onto the threaded rod and slides in contact with the base platform. The grinding block is mounted on the movable base to grind the gear shaft segments when the movable base moves. This invention can grind both sides of the gear shaft segments simultaneously, thereby effectively improving the processing efficiency of the gear shaft.

Description

Technical Field

[0001] This invention relates to the field of gear reducer processing equipment technology, and in particular to a gear shaft processing device for gear reducer production. Background Technology

[0002] A gear shaft is a mechanical part in a speed reducer that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. It is generally a metal rod, and each section can have different diameters. The middle section of the rod has teeth arranged in a ring. The teeth are generally of two different types: spur teeth and helical teeth. When machining a gear shaft, in addition to requiring precision in dimensions and specifications, it is also necessary to ensure that its appearance has good smoothness. Therefore, after the gear shaft is forged, its surface needs to be polished.

[0003] Chinese patent application CN202011148290.6 discloses a novel gear shaft grinding device for planetary reducer production, comprising a processing box body, a first motor, an electric push rod, a locking device, and a second motor. The processing box body has an internal mounting plate, and a locking cylinder is fixedly connected to the top of the mounting plate. The locking cylinder has a certain elasticity, and an adjusting nut is threaded onto the outer surface of the locking cylinder. The side wall of the locking cylinder has multiple adjusting openings, which are distributed in a ring array.

[0004] This device can ensure consistent grinding of the gear shaft surface through encircling grinding. However, since the middle section of the gear shaft has an annular tooth surface, the device can only grind one section of the gear shaft at a time. The position of the gear shaft needs to be changed midway, and the size of the adjustment opening needs to be readjusted, which affects the processing efficiency. Summary of the Invention

[0005] To address the technical problems existing in the background art, the present invention proposes a gear shaft processing device for the production of speed reducers.

[0006] A gear shaft processing device for producing speed reducers, wherein the gear shaft is in the shape of a round rod, and the middle of the rod has a ring of teeth forming a tooth segment that divides the gear shaft into two shaft segments, including: a base platform, a strip plate, a rack, a threaded rod, a movable base, a transmission gear set, and a grinding block;

[0007] The top surface of the base platform has two bearing seats for horizontally mounting the gear shaft, with a gap between the two bearing seats to form an accommodating area for accommodating the gear shaft tooth segments.

[0008] The strip plate is slidably mounted on the base platform and can slide in and out of the receiving area along the axial direction perpendicular to the gear shaft. The rack is horizontally arranged on the top of the strip plate and can mesh with the gear shaft tooth section to drive the gear shaft to rotate when the strip plate slides in and out of the receiving area.

[0009] The threaded rod and the bearing are set one-to-one. The threaded rod is rotatably mounted on the base platform and is parallel to the gear shaft axis. The movable base is threaded on the threaded rod and slides in contact with the base platform. The grinding block is mounted on the movable base to grind the gear shaft section when the movable base moves.

[0010] Each threaded rod is provided with a set of transmission gears, which includes: a spur gear, a first bevel gear, and a second bevel gear. The spur gear is rotatably mounted on the base platform. The side of the strip plate is provided with a tooth surface that can mesh with the spur gear. The first bevel gear is coaxially connected to the spur gear. The second bevel gear is mounted on the end of the threaded rod and meshes with the first bevel gear.

[0011] As a further optimization of the above scheme, the bearings are relatively parallel, and the movable bases are relatively distributed outside the accommodating area.

[0012] As a further optimization of the above scheme, the movable base is arranged close to the shaft seat, and when the strip plate enters the receiving area and engages with the drive spur gear, the movable base moves away from the shaft seat along the threaded rod axis.

[0013] As a further optimization of the above solution, the threaded rod is set on the bottom side of the base platform, and the base platform has a strip groove opened along the axial direction of the threaded rod. The bottom of the shaft seat passes through the strip groove and is screwed onto the threaded rod.

[0014] As a further optimization of the above scheme, the spur gear and the first bevel gear are distributed opposite each other on the top and bottom sides of the base platform, and the spur gear is located within the accommodating area.

[0015] As a further optimization of the above scheme, an electric push rod is provided on the top of the base platform to drive the movement of the strip plate.

[0016] As a further optimization of the above solution, the rack and the strip plate are detachably connected. The top of the strip plate has a groove for installing the rack, and a spring piece is provided on the inner wall of one side of the groove to hold the rack in place.

[0017] As a further optimization of the above solution, a sleeve is fixedly installed on the top of the movable base, a sliding rod is built into the sleeve, a spring is provided between the sliding rod and the sleeve to support the sliding rod, and a grinding block is arranged at the top of the sliding rod.

[0018] 1. The gear shaft processing device for reducer production proposed in this invention can synchronously drive the gear shaft to rotate and the movable base to move by the movement of the strip plate, so that the grinding block installed on the movable base can polish and grind each position of the shaft section on both sides of the gear shaft, thereby improving efficiency.

[0019] 2. The gear shaft processing device for speed reducer production proposed in this invention can use the spring force to press the grinding block against the shaft section of the gear shaft. Even if the diameter of the shaft section of the gear shaft changes, the grinding block can still be pressed tightly against the shaft under the action of the spring.

[0020] 3. The gear shaft processing device for speed reducer production proposed in this invention allows for the replacement of racks to meet the needs of gear shafts with different numbers of teeth, thereby improving practicality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a common gear shaft in a speed reducer;

[0022] Figure 2 This is a schematic diagram of the first angle structure of a gear shaft processing device for speed reducer production proposed in this invention;

[0023] Figure 3 This is a schematic diagram of the second angle structure of a gear shaft processing device for speed reducer production proposed in this invention;

[0024] Figure 4 This is a schematic diagram of the structure of a strip plate in a gear shaft processing device for speed reducer production proposed in this invention;

[0025] Figure 5 for Figure 2 Internal sectional view of the structure at point A. Detailed Implementation

[0026] This embodiment presents a gear shaft processing device for speed reducer production, used for grinding and polishing the surface of gear shafts. The structure of a common speed reducer gear shaft is as follows: Figure 1 As shown, the gear shaft is in the shape of a round rod, with teeth arranged in a ring in the middle of the rod to form a tooth segment and divide the gear shaft into two shaft segments. The teeth are generally of two types: straight teeth and helical teeth. The main polishing area is on the two shaft segments.

[0027] refer to Figure 2 and Figure 3 The gear shaft processing device includes: a base platform 1, a strip plate 2, a rack 3, a threaded rod 4, a movable base 5, a transmission gear set 6, and a grinding block 7. The top surface of the base platform 1 has a bearing seat 8 for horizontally mounting the gear shaft. There are two bearing seats 8 in total, which are relatively parallel. There is a gap between the two bearing seats 8 to form a receiving area 100 that can accommodate the gear shaft tooth segment.

[0028] The strip plate 2 is slidably mounted on the base platform 1 and can slide in and out of the receiving area 100 along the axial direction of the vertical gear 61. More specifically, the top of the base platform 1 is provided with an electric push rod 9 for driving the movement of the strip plate 2.

[0029] The rack 3 is horizontally arranged on the top of the strip plate 2 and can mesh with the gear shaft tooth section to drive the gear shaft to rotate when the strip plate 2 slides in and out of the receiving area 100.

[0030] Preferably, the rack 3 and the strip plate 2 are detachably connected, as shown in the reference. Figure 4 The top of the strip plate 2 has a groove 300 for mounting the rack 3. A spring piece 10 is provided on one side of the inner wall of the groove 300 to hold the rack 3 in place. It is worth noting that the rack 3 can mesh with the gear shaft regardless of whether the teeth of the gear shaft are straight or helical. In addition, the rack 3 can be replaced according to different models of gear shafts (the number of teeth of different models and sizes of gear shafts is slightly different), thereby improving its practicality.

[0031] The threaded rod 4 and the bearing seat 8 are arranged in a one-to-one correspondence. The threaded rod 4 is rotatably mounted on the base platform 1 and is parallel to the gear shaft axis. The movable base 5 is threadedly mounted on the threaded rod 4 and slides in contact with the base platform 1. More specifically, the movable base 5 is relatively distributed outside the accommodating area 100. The movable base 5 is arranged close to the bearing seat 8. When the strip plate 2 enters the accommodating area 100 and meshes with the driving spur gear 61, the movable base 5 moves away from the bearing seat 8 along the axial direction of the threaded rod 4.

[0032] Furthermore, the threaded rod 4 is disposed on the bottom side of the base platform 1, and the base platform 1 has a strip groove 200 opened along the axial direction of the threaded rod 4. The bottom of the bearing seat 8 passes through the strip groove 200 and is screwed onto the threaded rod 4.

[0033] Each threaded rod 4 is provided with a set of transmission gears 6, which includes a spur gear 61, a first bevel gear 62, and a second bevel gear 63. The spur gear 61 is rotatably mounted on the base platform 1. The side of the strip plate 2 is provided with a tooth surface 21 that can mesh with the spur gear 61. The first bevel gear 62 is coaxially connected to the spur gear 61. The second bevel gear 63 is mounted on the end of the threaded rod 4 and meshes with the first bevel gear 62. When the strip plate 2 enters the receiving area 100 and drives the gear shaft to rotate, the tooth surface 21 synchronously meshes with the transmission spur gear 61, causing the threaded rod 4 to rotate, thereby realizing the movement of the movable base 5. The grinding block 7 moves with the movable base 5, and at the same time the gear shaft rotates, so that all positions of the gear shaft can be ground.

[0034] Since the threaded rod 4 is located on the bottom side of the base platform 1, the spur gear 61 and the first bevel gear 62 are distributed opposite each other on the top and bottom sides of the base platform 1, and the spur gear 61 is located within the accommodating area 100.

[0035] Grinding block 7 is mounted on movable base 5 to grind the gear shaft section when movable base 5 moves. Figure 1It is known that the gear shaft segment can have different diameters. In order to make the grinding block 7 fit better against the surface of the shaft segment, a sleeve 11 is fixedly installed on the top of the movable base 5. The sleeve 11 has a slide rod 12 inside. A spring 13 is provided between the slide rod 12 and the sleeve 11 to support the slide rod 12. The grinding block 7 is arranged on the top of the slide rod 12. The elastic force of the spring 13 is used to press the grinding block 7 against the shaft segment of the gear shaft. Even if the diameter of the gear shaft segment changes, the grinding block 7 can fit again under the action of the spring 13.

[0036] In this embodiment, when the strip plate 2 enters and exits the receiving area 100, the rack 3 meshes with and drives the gear shaft to rotate. At the same time, the strip plate 2 also drives the threaded rod 4 to rotate through the transmission gear set 6, causing the movable base 5 to move. The polishing block 7 installed on the movable base 5 polishes the gear shaft, and the elastic force of the spring 13 can press the polishing block 7 against the shaft section of the gear shaft. Even if the diameter of the shaft section of the gear shaft changes, the polishing block 7 can still be pressed tightly against the shaft under the action of the spring 13.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A gear shaft processing device for producing a speed reducer, wherein the gear shaft is in the shape of a round rod, and the middle part of the rod has annularly arranged teeth forming a tooth segment that divides the gear shaft into two shaft segments, characterized in that, include: The components include: a base platform (1), a strip plate (2), a rack (3), a threaded rod (4), a movable base (5), a transmission gear set (6), and a grinding block (7). The top surface of the base platform (1) has a bearing seat (8) for horizontally mounting the gear shaft. There are two bearing seats (8) and a gap is left between the two bearing seats (8) to form a receiving area (100) that can accommodate the gear shaft tooth segment. The strip plate (2) is slidably mounted on the base platform (1) and can slide in and out of the accommodating area (100) along the axial direction of the vertical spur gear (61) shaft. The rack (3) is horizontally arranged on the top of the strip plate (2) and can mesh with the gear shaft tooth segment to drive the gear shaft to rotate when the strip plate (2) slides in and out of the accommodating area (100). The threaded rod (4) and the bearing seat (8) are set in a one-to-one correspondence. The threaded rod (4) is rotatably mounted on the base platform (1) and is parallel to the gear shaft axis. The movable base (5) is threadedly mounted on the threaded rod (4) and slides in contact with the base platform (1). The grinding block (7) is mounted on the movable base (5) to grind the gear shaft section when the movable base (5) moves. Each threaded rod (4) is provided with a set of transmission gears (6), which includes: a spur gear (61), a first bevel gear (62), and a second bevel gear (63). The spur gear (61) is rotatably mounted on the base platform (1). The side of the strip plate (2) is provided with a tooth surface (21) that can mesh with the spur gear (61). The first bevel gear (62) is coaxially connected to the spur gear (61). The second bevel gear (63) is mounted on the end of the threaded rod (4) and meshes with the first bevel gear (62). The bearings (8) are relatively parallel, and the movable bases (5) are relatively distributed outside the accommodating area (100); The threaded rod (4) is set on the bottom side of the base platform (1). The base platform (1) has a strip groove (200) opened along the axial direction of the threaded rod (4). The bottom of the bearing seat (8) passes through the strip groove (200) and is screwed onto the threaded rod (4).

2. The gear shaft processing device for producing speed reducers according to claim 1, characterized in that, The movable base (5) is arranged close to the shaft seat (8), and when the strip plate (2) enters the receiving area (100) and engages the drive spur gear (61), the movable base (5) moves away from the shaft seat (8) along the threaded rod (4).

3. The gear shaft processing device for producing speed reducers according to claim 1, characterized in that, The spur gear (61) and the first bevel gear (62) are distributed opposite each other on the top and bottom sides of the base platform (1), and the spur gear (61) is located in the accommodating area (100).

4. The gear shaft processing device for producing speed reducers according to claim 1, characterized in that, The base platform (1) is equipped with an electric push rod (9) on top for driving the movement of the strip plate (2).

5. The gear shaft processing device for producing speed reducers according to claim 1, characterized in that, The rack (3) is detachably connected to the strip plate (2). The top of the strip plate (2) is provided with a groove (300) for installing the rack (3). A spring piece (10) is provided on the inner wall of one side of the groove (300) to press against the rack (3).

6. The gear shaft processing device for producing speed reducers according to claim 1, characterized in that, A sleeve (11) is fixedly installed on the top of the movable base (5). A slide rod (12) is built into the sleeve (11). A spring (13) is provided between the slide rod (12) and the sleeve (11) to support the slide rod (12). A grinding block (7) is arranged on the top of the slide rod (12).

Images