Auxiliary roller pin mounting device of planet gear speed reducer

Abstract

The utility model relates to the technical field of planet gear speed reducer assembly, and discloses a planet gear speed reducer roller pin auxiliary installation device which comprises a sleeve, a positioning ring is fixedly connected to the top of the inner wall of the sleeve, a plurality of positioning holes distributed in a circumferential mode are formed in the positioning ring, a dispersing column is fixedly connected to the middle side of the inner bottom wall of the sleeve, and the dispersing column is fixedly connected with the inner wall of the sleeve. An array pipe is fixedly connected to the outer side of the dispersion column, a plurality of uniformly distributed roller pins are arranged on the outer side of the array pipe, a piston is slidably connected to the bottom of the periphery of the array pipe, an air inlet valve is installed on one side of the bottom of the sleeve, an exhaust valve is installed on the other side of the bottom of the sleeve, and an anti-falling assembly is installed in the dispersion column. According to the utility model, the uniform arrangement can be quickly completed by virtue of the guide of the array pipe and the positioning holes, and the roller pins on each layer do not need to be adjusted when being loaded, so that the efficiency of reloading the roller pins by the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary gear reducer assembly, in particular to a needle roller auxiliary installation device for a planetary gear reducer. Background Art

[0002] The planetary gear reducer consists of a sun gear, planetary gears, a planetary carrier, an inner gear ring and other components. The sun gear is located in the center, and the planetary gears rotate around the sun gear, while the planetary gears on the planetary carrier rotate around the sun gear. When installing the planetary gears on the planetary carrier, it is necessary to first install a row of needle rollers into the shaft holes on the planetary carrier, so that when the planetary gears are installed later, the planetary gears can rotate directly on the planetary carrier through the needle rollers. In order to complete the installation of the needle rollers more conveniently, an auxiliary installation device is usually used to quickly install the needle rollers inside the planetary carrier.

[0003] At present, when the traditional planetary gear reducer's needle roller auxiliary installation device is used, it is mostly through a sleeve structure, and then a magnetic column structure is installed at the center of the sleeve structure to ensure that the needle rollers can be distributed in a circular array inside the sleeve to prevent the needle rollers from moving. Subsequently, the needle rollers are directly installed inside the planetary carrier by pushing the piston structure at the tail.

[0004] However, the above structure only relies on magnetic columns and sleeves to realize the loading and positioning of needle rollers. During the process, when each layer of needle rollers is loaded into the device, the needle rollers need to be adjusted to ensure that the needle rollers of each layer can be aligned to avoid omissions when arranging the needle rollers of one layer. During the process, it takes too much time for workers to place the needle rollers inside the device. Therefore, a needle roller auxiliary installation device for a planetary gear reducer is proposed. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a needle roller auxiliary installation device for a planetary gear reducer, aiming to improve the problem in the prior art that when loading needle rollers into the auxiliary device, it takes too much time to arrange the needle rollers inside the device to ensure that the number of needle rollers in each layer is the same.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a needle roller auxiliary installation device for a planetary gear reducer, comprising a sleeve, a positioning ring is fixedly connected to the top of the inner wall of the sleeve, a plurality of positioning holes distributed in a circular pattern are opened inside the positioning ring, a dispersion column is fixedly connected to the middle side of the inner bottom wall of the sleeve, an array tube is fixedly connected to the outer side of the dispersion column, a plurality of evenly distributed needle rollers are arranged on the outer side of the array tube, a piston is slidably connected to the bottom of the outer periphery of the array tube, an intake valve is installed on one side of the bottom of the sleeve, an exhaust valve is installed on the other side of the bottom of the sleeve, and an anti-detachment component is installed inside the dispersion column.

[0007] As a further description of the above technical solution:

[0008] The anti-slip assembly includes a rotating rod, the outer circumference of which passes through and is rotatably connected to the inside of the dispersion column, a disc is fixedly connected to the top of the rotating rod, a plurality of circumferentially distributed connecting rods are rotatably connected to the outer side of the disc, a baffle is rotatably connected to the end of the connecting rod away from the disc, a limiting block is fixedly connected to one side of the top of the disc, a top cover is rotatably connected to the top of the rotating rod, the outer side of the top cover is fixedly connected to the top of the dispersion column, a limiting groove is provided on one side of the bottom of the top cover, and a torsion spring is sleeved on the outer circumference of the rotating rod.

[0009] As a further description of the above technical solution:

[0010] The top of the outer periphery of the dispersion column is fixedly connected to the inner side of the positioning ring, and the outer side of the piston is slidably connected to the inside of the sleeve.

[0011] As a further description of the above technical solution:

[0012] The outer side of the roller needle passes through and is slidably connected to the inside of the positioning hole, and the roller needle is located between the outer wall of the array tube and the inner wall of the sleeve.

[0013] As a further description of the above technical solution:

[0014] The outer side of the baffle plate passes through the dispersion column and is slidably connected to the inside of the positioning ring, and the bottom of the baffle plate is arranged on the top of the roller needle.

[0015] As a further description of the above technical solution:

[0016] The outer side of the limiting block is slidably connected to the inside of the limiting groove.

[0017] As a further description of the above technical solution:

[0018] A groove is provided on the middle side of the top of the dispersion column, the top end of the torsion spring is fixedly connected to the bottom of the disc, and the bottom end of the torsion spring is fixedly connected to the bottom wall of the groove.

[0019] As a further description of the above technical solution:

[0020] Both sides of the outer side of the sleeve are fixedly connected to limit rings, and the bottom end of the rotating rod is fixedly connected to a hand wheel.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the needle rollers are placed inside the sleeve through the positioning holes. The dropped needle rollers will fall straight inside the sleeve under the restriction of the array tube. The workers only need to load the corresponding positions at the bottom of each positioning hole with needle rollers in turn. After the needle rollers inside the auxiliary device are reloaded, they can be quickly and evenly arranged with the help of the array tube and the positioning holes. There is no need to adjust each layer of needle rollers when they are loaded. At the same time, with the help of the cooperation of the piston and the intake valve, the needle rollers of each layer are transported with the help of compressed air, and the needle rollers are directly installed in a circular distribution inside the planetary carrier, thereby greatly improving the efficiency of the device when reloading needle rollers, and making it more convenient for workers to use.

[0023] 2. In the utility model, the external air pipe and the air inlet valve are connected, and then the rotating rod is rotated to pull the baffle out from the positioning hole. Then, air is injected into the sleeve through the air pipe and the air inlet valve to assemble the needle roller into the planet frame. When not in use, only the rotating rod needs to be loosened. Under the action of the torsion spring, it is ensured that the baffle can stay stably in the positioning hole, and the needle roller will not fall off from the device before the needle roller is installed. It can be opened conveniently when the needle roller is installed, and then the needle roller is installed into the planet frame, which makes it more convenient and quick for workers to use and improves the assembly efficiency of the needle roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a stereoscopic diagram of a first viewing angle of a needle roller auxiliary installation device for a planetary gear reducer proposed by the utility model;

[0025] Figure 2 A stereoscopic diagram of a needle roller auxiliary installation device for a planetary gear reducer proposed by the utility model from a second viewing angle;

[0026] Figure 3 A schematic diagram of the needle roller structure of a needle roller auxiliary installation device for a planetary gear reducer proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of the array tube structure of a needle roller auxiliary installation device for a planetary gear reducer proposed by the utility model;

[0028] Figure 5 This is a schematic diagram of the piston structure of a needle roller auxiliary installation device for a planetary gear reducer proposed by the utility model;

[0029] Figure 6 This is an exploded view of an anti-slip assembly of a needle roller auxiliary installation device for a planetary gear reducer proposed by the utility model;

[0030] Figure 7 The utility model is a schematic diagram of the torsion spring structure of a needle roller auxiliary installation device for a planetary gear reducer.

[0031] Legend:

[0032] 1. Sleeve; 2. Positioning ring; 3. Positioning hole; 4. Dispersion column; 5. Array tube; 6. Needle roller; 7. Piston; 8. Inlet valve; 9. Exhaust valve; 10. Limiting ring; 11. Rotating rod; 12. Disc; 13. Connecting rod; 14. Baffle; 15. Limiting block; 16. Top cover; 17. Limiting groove; 18. Torsion spring; 19. Groove; 20. Handwheel. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Reference Figure 1-Figure 4 The utility model provides an embodiment: a needle roller auxiliary installation device for a planetary gear reducer, comprising a sleeve 1, a positioning ring 2 is fixedly connected to the top of the inner wall of the sleeve 1, and a plurality of positioning holes 3 distributed in a circumference are opened inside the positioning ring 2. The positioning ring 2 and the positioning holes 3 can guide the needle roller 6 into the device, or the needle roller 6 arranged inside the device can be directly guided out and then installed in the shaft hole inside the planetary frame. A dispersion column 4 is fixedly connected to the middle side of the inner bottom wall of the sleeve 1, and an array tube 5 is fixedly connected to the outer side of the dispersion column 4. A plurality of uniformly distributed needle rollers 6 are arranged on the outer side of the array tube 5. The groove structure opened on the outer side of the needle roller 6 can provide an effective restriction effect for each row of needle rollers 6, so as to avoid the movement of the needle rollers 6 inside the sleeve 1. At the same time, when loading the needle rollers 6, it can ensure that the needle rollers 6 are evenly distributed on the outer side of the array tube 5, so that each layer of needle rollers 6 is neatly placed on the outer side of the array tube 5. A piston 7 is slidably connected to the bottom of the outer periphery of the array tube 5, an intake valve 8 is installed on one side of the bottom of the sleeve 1, and an exhaust valve 9 is installed on the other side of the bottom of the sleeve 1. After the intake valve 8 is connected to the external air pipe, the high-pressure gas will directly enter the sleeve 1, thereby pushing the piston 7 to move upward along the outside of the array tube 5, pushing the needle roller 6 on the outside of the array tube 5 to move and extend from the inside of the positioning hole 3, thereby realizing the installation of the needle roller 6, so that the needle roller 6 installed inside the planetary carrier can be arranged in a circular shape.

[0035] Reference Figure 2-Figure 5, an anti-dropout component is installed inside the dispersion column 4, which can ensure that the needle roller 6 loaded inside will not fall off when the device is not in use. At the same time, the anti-dropout component can be easily opened when in use to push the needle roller 6 into the shaft hole inside the planetary frame. Compared with the traditional end cover structure, which needs to unscrew the end cover when in use, this structure is more convenient and faster. The top of the outer periphery of the dispersion column 4 is fixedly connected to the inner side of the positioning ring 2, and the positioning ring 2 is fixed between the sleeve 1 and the dispersion column 4 to ensure that the dispersion column 4 can remain stable. The outer side of the piston 7 is slidably connected to the inside of the sleeve 1, so that the high-pressure air inside the sleeve 1 can push the piston 7 to move, and then push the needle roller 6 out of the positioning hole 3 and install it in the shaft hole inside the planetary frame. The outer side of the needle roller 6 passes through and is slidably connected to the inside of the positioning hole 3. The piston 7 pushes the needle roller 6 to move, so that the needle roller 6 can slide out from the inside of the positioning hole 3, and then the needle roller 6 is neatly sent into the axial hole inside the planetary frame. The needle roller 6 is located between the outer wall of the array tube 5 and the inner wall of the sleeve 1. The needle roller 6 is limited by the array tube 5 and the sleeve 1 to ensure that each layer of the needle roller 6 can be restricted, avoid shaking of the needle roller 6 inside the sleeve 1, and ensure that it is neatly distributed inside the sleeve 1.

[0036] Reference Figure 1 , Figure 6 and Figure 7 The anti-slip assembly includes a rotating rod 11, the outer circumference of which passes through and is rotatably connected to the inside of the dispersion column 4. A disc 12 is fixedly connected to the top of the rotating rod 11. A plurality of connecting rods 13 distributed in a circle are rotatably connected to the outer side of the disc 12. A baffle 14 is rotatably connected to the end of the connecting rod 13 away from the disc 12. The rotating rod 11 drives the disc 12 to rotate. The rotation of the disc 12 pulls the connecting rods 13 on its outer circumference. The corresponding baffles 14 are pulled toward the inside of the dispersion column 4 through the plurality of connecting rods 13, and then the baffles 14 are pulled out from the inside of the positioning hole 3, so that the baffles 14 are detached from the inside of the positioning hole 3, and then the roller needle 6 can be extended from the inside of the positioning hole 3. A limiting block 15 is fixedly connected to one side of the top of the disc 12. A top cover 16 is rotatably connected to the top of the rotating rod 11. The outer side of the top cover 16 is fixedly connected to the top of the dispersion column 4. A limiting groove 17 is provided on one side of the bottom of the top cover 16. When the disc 12 rotates, the limit block 15 on its top will slide inside the limit slot 17, and the range of movement of the limit block 15 is limited by the length of the limit slot 17, thereby limiting the range of rotation of the disc 12 and the rotating rod 11, thereby preventing the disc 12 from rotating too much and causing the baffle 14 to be pulled out of the positioning ring 2.

[0037] Reference Figure 6-Figure 7The outer periphery of the rotating rod 11 is sleeved with a torsion spring 18. When the rotating rod 11 rotates, the torsion spring 18 can be tightened, and then when the rotating rod 11 is loosened, the disc 12 can be rotated by resetting the torsion spring 18, and then the baffle 14 is inserted into the interior of the positioning hole 3 again. The outer side of the baffle 14 passes through the dispersion column 4 and is slidably connected to the interior of the positioning ring 2, so that the baffle 14 can be directly inserted into the interior of the positioning hole 3, and the space at the top of the positioning hole 3 is closed to prevent the needle roller 6 from sliding out of the sleeve 1. The bottom of the baffle 14 is set on the top of the top needle roller 6, so that the needle roller 6 will be blocked by the baffle 14 when entering the interior of the baffle 14, preventing the needle roller 6 from falling, and facilitating the worker to hold the device to the planetary frame for use. The outer side of the limit block 15 is slidably connected to the interior of the limit groove 17, and the limit block 15 is limited by the limit groove 17, thereby limiting the rotation range of the disc 12. A groove 19 is provided on the middle side of the top of the dispersion column 4. The top of the torsion spring 18 is fixedly connected to the bottom of the disc 12, and the bottom of the torsion spring 18 is fixedly connected to the inner bottom wall of the groove 19. The elastic force generated by the tightening of the torsion spring 18 can always apply a rotational force to the disc 12, and under the restriction of the limit groove 17 and the limit block 15, ensure that the connecting rod 13 tightly presses the baffle 14 against the inside of the positioning hole 3. The limiting rings 10 are fixedly connected to both sides of the outside of the sleeve 1, and the hand wheel 20 is fixedly connected to the bottom end of the rotating rod 11. The positioning of the device before use is completed by the contact between the limiting ring 10 and the outer wall of the shaft hole on the planet carrier. At the same time, the hand wheel 20 can facilitate the worker to turn the rotating rod 11 to open the anti-slip assembly and install the needle roller 6 into the inside of the planet carrier.

[0038] Working principle: When loading the needle roller 6, the user first opens the exhaust valve 9 to exhaust the air inside the sleeve 1, so that the piston 7 falls to the bottom of the sleeve 1 along the outside of the array tube 5. Then, the hand wheel 20 is turned to drive the rotating rod 11 to rotate, thereby driving the disc 12 to rotate through the rotating rod 11. The rotation of the disc 12 will pull the connecting rod 13 on its outer periphery, and through multiple connecting rods 13, the corresponding multiple baffles 14 are pulled toward the inside of the dispersion column 4, and then the baffles 14 are pulled out from the inside of the positioning hole 3. At this time, the torsion spring 18 will also be tightened as the rotating rod 11 rotates. Then the user puts the needle roller from one of the positioning holes 3. The needle roller falling from the positioning hole 3 will slide down along the groove on the outer wall of the array tube 5 and the inner wall of the sleeve 1 until it falls on the piston 7, and the subsequent needle rollers 6 are continuously put into the sleeve 1 one by one along the same positioning hole 3 until the outer periphery of the top needle roller 6 is located inside the positioning hole 3. At this time, the loading of the needle roller 6 at one position is completed. Then the worker only needs to load the corresponding position at the bottom of each positioning hole 3 with the needle roller 6 in turn. After the loading is completed, the needle roller 6 inside the auxiliary device can be quickly and evenly arranged with the help of the array tube 5 and the positioning hole 3. After that, just loosen the hand wheel 20 so that the rotating rod 11 lacks external interference. At this time, the tightened torsion spring 18 resets and drives the rotating rod 11 to rotate, and then the disc 12 rotates to push the connecting rod 13 and the baffle 14 to extend toward the inside of the positioning hole 3. The top of the positioning hole 3 is closed by the baffle 14 to prevent the loaded needle roller 6 from slipping from the inside of the sleeve 1, which is more convenient for users to use and ensures that the user can more accurately align the needle roller 6 inside the shaft hole of the planetary frame when installing it. During the installation of the needle roller 6, first align the positioning hole 3 with the shaft hole on the planetary frame, and complete the positioning of the device through the contact between the limit ring 10 on the outside of the sleeve 1 and the outer wall of the shaft hole. Then, the external air pipe and the air inlet valve 8 are connected, and the rotating rod 11 is rotated to allow the baffle 14 to be withdrawn from the positioning hole 3. Then, air is injected into the sleeve 1 through the air pipe and the air inlet valve 8, so that the internal pressure of the sleeve 1 increases and the piston 7 is pushed along the outer periphery of the array tube 5 toward the positioning hole 3. Under the action of the piston 7, each layer of the needle rollers 6 can be discharged from the positioning hole 3 one by one and loaded into the planet carrier. After the multiple groups of needle rollers 6 inside the device are installed, the exhaust valve 9 can be opened to release the pressure inside the sleeve 1, so that the piston 7 can move back to the bottom of the sleeve 1, which is convenient for the subsequent loading of the next batch of needle rollers 6 into the sleeve 1.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 protection scope of the present invention.

Claims

1. A needle roller auxiliary installation device for a planetary gear reducer, comprising a sleeve (1), characterized in that: A positioning ring (2) is fixedly connected to the top of the inner wall of the sleeve (1), and a plurality of positioning holes (3) distributed in a circumferential manner are provided inside the positioning ring (2). A dispersion column (4) is fixedly connected to the middle side of the inner bottom wall of the sleeve (1), and an array tube (5) is fixedly connected to the outside of the dispersion column (4). A plurality of evenly distributed roller needles (6) are arranged on the outside of the array tube (5), and a piston (7) is slidably connected to the bottom of the outer periphery of the array tube (5). An intake valve (8) is installed on one side of the bottom of the sleeve (1), and an exhaust valve (9) is installed on the other side of the bottom of the sleeve (1). An anti-slip assembly is installed inside the dispersion column (4).

2. The needle roller auxiliary installation device for a planetary gear reducer according to claim 1, characterized in that: The anti-slip assembly comprises a rotating rod (11), the outer circumference of which passes through and is rotatably connected to the interior of the dispersion column (4), the top of the rotating rod (11) is fixedly connected to a disc (12), the outer side of the disc (12) is rotatably connected to a plurality of connecting rods (13) distributed in a circumference, one end of the connecting rod (13) away from the disc (12) is rotatably connected to a baffle (14), one side of the top of the disc (12) is fixedly connected to a limiting block (15), the top of the rotating rod (11) is rotatably connected to a top cover (16), the outer side of the top cover (16) is fixedly connected to the top of the dispersion column (4), a limiting groove (17) is provided on one side of the bottom of the top cover (16), and a torsion spring (18) is sleeved on the outer circumference of the rotating rod (11).

3. The needle roller auxiliary installation device for a planetary gear reducer according to claim 1, characterized in that: The top of the outer periphery of the dispersion column (4) is fixedly connected to the inner side of the positioning ring (2), and the outer side of the piston (7) is slidably connected to the inside of the sleeve (1).

4. The needle roller auxiliary installation device for a planetary gear reducer according to claim 1, characterized in that: The outer side of the rolling needle (6) passes through and is slidably connected to the inside of the positioning hole (3), and the rolling needle (6) is located between the outer wall of the array tube (5) and the inner wall of the sleeve (1).

5. The needle roller auxiliary installation device for a planetary gear reducer according to claim 2, characterized in that: The outer side of the baffle (14) passes through the dispersion column (4) and is slidably connected to the inside of the positioning ring (2), and the bottom of the baffle (14) is arranged on the top of the roller needle (6).

6. The needle roller auxiliary installation device for a planetary gear reducer according to claim 2, characterized in that: The outer side of the limiting block (15) is slidably connected to the inside of the limiting groove (17).

7. The needle roller auxiliary installation device for a planetary gear reducer according to claim 2, characterized in that: A groove (19) is provided in the middle of the top of the dispersion column (4); the top end of the torsion spring (18) is fixedly connected to the bottom of the disc (12); and the bottom end of the torsion spring (18) is fixedly connected to the inner bottom wall of the groove (19).

8. The needle roller auxiliary installation device for a planetary gear reducer according to claim 2, characterized in that: Both sides of the outside of the sleeve (1) are fixedly connected to limiting rings (10), and the bottom end of the rotating rod (11) is fixedly connected to a hand wheel (20).

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