Double-shaft cycloidal pin gear speed reducer

By designing a two-axis cycloid pin wheel reducer, the synchronous rotation of the two devices is achieved by using gear transmission, which solves the problem that the single output shaft design cannot drive two devices at the same time in the prior art.

CN222880287UActive Publication Date: 2025-05-16PINGYANG NANFANG VARIABLE SPEED MASCH FACTORY
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421896155.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-07
Publication Date
2025-05-16
Estimated Expiration
2034-08-07

AI Technical Summary

Technical Problem

The existing cycloid pin wheel reducers are designed with a single output shaft and cannot drive both devices to rotate at the same time.

Method used

A biaxial cycloid pin wheel reducer is designed, and the first gear on the first shaft and its outer side are driven to rotate through the cycloid pin wheel reducer body, and drive the third gear and the third shaft to rotate, realizing the synchronous rotation of the two devices.

Benefits of technology

The function of driving the rotation of both devices simultaneously is realized, and the second gear plays a transmission role between the first gear and the third gear, so that the first shaft inside the first gear and the third shaft inside the third gear can rotate simultaneously.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222880287U_ABST
    Figure CN222880287U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of speed reducers, and discloses a double-shaft type cycloidal pin gear speed reducer which comprises a cycloidal pin gear speed reducer body, a shell, a first shaft rod, a protective sleeve and a second sealing sleeve. A driving motor is fixed to the power input end of the cycloidal-pin gear speed reducer body through bolts, a shell is arranged on the side, away from the driving motor, of the cycloidal-pin gear speed reducer body, a first shaft rod is rotationally connected into the shell through a bearing, and a first gear fixedly sleeves the outer side of the first shaft rod through a flat key; the interior, away from the first shaft rod, of the shell is rotationally connected with a third shaft rod through a bearing. A double-shaft design is adopted, a driving motor works to drive a first shaft rod and a first gear on the outer side of the first shaft rod to rotate through a cycloidal pin gear speed reducer body, then transmission is conducted through a second gear on the outer side of a second shaft rod, a third gear and a third shaft rod are driven to rotate, the first shaft rod and the third shaft rod rotate synchronously, and two devices can be driven to rotate at the same time; the method is suitable for wide popularization.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a double-shaft cycloid pinwheel reducer. Background Art

[0002] A reducer is an independent component consisting of a gear drive, worm drive, or gear-worm drive enclosed in a rigid housing. It is often used as a reduction transmission device between the prime mover and the working machine. It matches the speed and transmits torque between the prime mover and the working machine or actuator. It is widely used in modern machinery.

[0003] The cycloid pinwheel reducer is a type of reducer. It is a novel transmission device that uses the planetary transmission principle and cycloid pinwheel meshing. The existing cycloid pinwheel reducers are all single output shaft designs and cannot drive two devices to rotate at the same time. Therefore, we propose a dual-shaft cycloid pinwheel reducer. Utility Model Content

[0004] Technical issues solved

[0005] In view of the deficiencies in the prior art, the utility model provides a double-shaft cycloid pinwheel reducer, which solves the problems raised by the background technology.

[0006] Technical Solution

[0007] The utility model provides the following technical solutions: a double-shaft cycloid pinwheel reducer, comprising a cycloid pinwheel reducer body, a housing, a first shaft, a sheath, and a second sealing sleeve;

[0008] The power input end of the cycloid pinwheel reducer body is fixed with a driving motor by bolts, and a shell is provided on the side of the cycloid pinwheel reducer body away from the driving motor, and a first shaft is rotatably connected to the inside of the shell through a bearing, and a first gear is provided on the outside of the first shaft through a flat key fixing sleeve, and a third shaft is rotatably connected to the inside of the shell away from the first shaft through a bearing, and a third gear is provided on the outside of the third shaft through a flat key fixing sleeve, and the inside of the shell located between the third shaft and the first shaft is rotatably connected to the second shaft through a bearing, and a second gear is provided on the outside of the second shaft through a flat key fixing sleeve, and a connecting sleeve is welded on the side of the shell close to the cycloid pinwheel reducer body, a baffle is fixed inside the connecting sleeve by bolts, and a shell cover is fixed to the side of the shell away from the connecting sleeve by bolts.

[0009] Furthermore, a connecting flange is welded on one side of the connecting sleeve, and the connecting flange is fixed to the power input end of the cycloid pinwheel reducer body by bolts, and a sealing gasket is glued on the side of the connecting flange away from the connecting sleeve.

[0010] Furthermore, a sheath is welded at both ends of one side of the shell cover, a second sealing sleeve is embedded in the side of the shell cover away from the sheath, one end of the second sealing sleeve is located inside the sheath, and a sealing ring is glued to one side of the shell cover located outside the second sealing sleeve.

[0011] Furthermore, the baffle sleeve is provided with a first sealing sleeve, one end of the first shaft rod passes through the first sealing sleeve, and the other end of the first shaft rod and one end of the third shaft rod both pass through the second sealing sleeve and the sheath.

[0012] Furthermore, an oil filling assembly is provided on the top of the shell, and the oil filling assembly includes an oil inlet pipe welded to the top of the shell, a filter screen is fixed inside the oil inlet pipe through a slot, and a sealing cover is connected to the top of the oil inlet pipe through a threaded groove.

[0013] Furthermore, a storage component is provided at the bottom of the shell, and the storage component includes a connecting pipe welded to the bottom of the shell, the bottom end of the connecting pipe is connected to a bottom cover through a threaded groove, and a magnet rod is embedded at the top of the bottom cover located inside the connecting pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The driving motor drives the first shaft and the first gear outside the first shaft to rotate through the cycloid pinwheel reducer body. The first gear rotates through the second gear outside the second shaft to drive the third gear to rotate, thereby driving the third shaft to rotate. The first shaft and the third shaft penetrate the shell cover and can drive two devices to rotate at the same time. The second gear plays a transmission role between the first gear and the third gear, so that the first shaft inside the first gear and the third shaft inside the third gear can rotate synchronously.

[0016] Open the sealing cover to pour the gear oil into the housing through the oil inlet pipe, which is convenient for lubricating the first gear, the second gear and the third gear in the housing so that they can rotate smoothly. The filter in the oil inlet pipe can filter the impurities in the gear oil to prevent them from entering the housing with the gear oil, thereby affecting the rotation of the first gear, the second gear and the third gear. The powder generated by the friction between the first gear, the second gear and the third gear during operation will be mixed into the gear oil. After the powder is precipitated, it falls into the connecting pipe and is adsorbed by the magnet bar. The powder adsorbed by the magnet bar can be cleaned by opening the bottom cover;

[0017] This double-axis cycloidal pinwheel reducer adopts a double-axis design. The driving motor drives the first shaft and the first gear on its outside to rotate through the cycloidal pinwheel reducer body, and transmits through the second gear on the outside of the second shaft to drive the third gear and the third shaft to rotate. The first shaft and the third shaft rotate synchronously, and can drive two devices to rotate at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the cycloid pinwheel reducer of the utility model;

[0020] Figure 3 This is a schematic diagram of the housing structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the interior of the housing of the utility model;

[0022] Figure 5 This is a schematic diagram of the shell cover structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the oil injection assembly of the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the storage component of the utility model;

[0025] In the figure: 1. cycloid pinwheel reducer body; 2. drive motor; 3. housing; 4. housing cover; 5. connecting sleeve; 6. connecting flange; 7. oil filling assembly; 701. oil inlet pipe; 702. sealing cover; 703. filter screen; 8. storage assembly; 801. connecting pipe; 802. bottom cover; 803. magnet rod; 9. first shaft rod; 10. second shaft rod; 11. third shaft rod; 12. baffle; 13. first sealing sleeve; 14. sealing gasket; 15. sheath; 16. second sealing sleeve; 17. sealing ring; 18. first gear; 19. second gear; 20. third gear. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-Figure 7 In the embodiment of the utility model, the cycloid pinwheel reducer body 1, the housing 3, the first shaft 9, the sheath 15 and the second sealing sleeve 16 are included;

[0028] A driving motor 2 is fixed to the power input end of the cycloidal pinwheel reducer body 1 by bolts, and a shell 3 is provided on the side of the cycloidal pinwheel reducer body 1 away from the driving motor 2. A first shaft rod 9 is rotatably connected to the inside of the shell 3 through a bearing, and a first gear 18 is provided on the outside of the first shaft rod 9 through a flat key fixing sleeve. The inside of the shell 3 away from the first shaft rod 9 is rotatably connected to the third shaft rod 11 through a bearing, and a third gear 20 is provided on the outside of the third shaft rod 11 through a flat key fixing sleeve. The inside of the shell 3 located between the third shaft rod 11 and the first shaft rod 9 is rotatably connected to the second shaft rod 10 through a bearing, and a second gear 19 is provided on the outside of the second shaft rod 10 through a flat key fixing sleeve. A connecting sleeve 5 is welded on the side of the shell 3 close to the cycloidal pinwheel reducer body 1, a baffle 12 is fixed to the inside of the connecting sleeve 5 by bolts, and a shell cover 4 is fixed to the side of the shell 3 away from the connecting sleeve 5 by bolts.

[0029] Among them, a connecting flange 6 is welded on one side of the connecting sleeve 5, and the connecting flange 6 is fixed to the power input end of the cycloid pinwheel reducer body 1 by bolts. A sealing gasket 14 is glued on the side of the connecting flange 6 away from the connecting sleeve 5. The housing 3 is fixed on the cycloid pinwheel reducer body 1 through the connecting sleeve 5 and the connecting flange 6, and the sealing gasket 14 is sealed between the connecting flange 6 and the cycloid pinwheel reducer body 1.

[0030] Among them, a sleeve 15 is welded at both ends of one side of the shell cover 4, a second sealing sleeve 16 is embedded on the side of the shell cover 4 away from the sleeve 15, one end of the second sealing sleeve 16 is located inside the sleeve 15, and a sealing ring 17 is glued on the side of the shell cover 4 located outside the second sealing sleeve 16. The second sealing sleeve 16 seals between the shell cover 4 and the first shaft rod 9 and the third shaft rod 11, and the sealing ring 17 seals between the shell cover 4 and the shell body 3.

[0031] Among them, the baffle 12 is provided with a first sealing sleeve 13, one end of the first shaft rod 9 passes through the first sealing sleeve 13, the other end of the first shaft rod 9 and one end of the third shaft rod 11 both pass through the second sealing sleeve 16 and the sleeve 15, and the baffle 12 and the first sealing sleeve 13 are sealed between the first shaft rod 9 and the connecting flange 6.

[0032] Among them, an oil filling assembly 7 is arranged on the top of the shell 3, and the oil filling assembly 7 includes an oil inlet pipe 701 welded to the top of the shell 3, a filter screen 703 is fixed inside the oil inlet pipe 701 through a card slot, and a sealing cover 702 is connected to the top of the oil inlet pipe 701 through a threaded groove. The gear oil can be injected into the shell 3 through the oil inlet pipe 701, and the filter screen 703 can filter the gear oil.

[0033] Among them, a storage component 8 is set at the bottom of the shell 3, and the storage component 8 includes a connecting pipe 801 welded to the bottom of the shell 3. The bottom end of the connecting pipe 801 is connected to a bottom cover 802 through a threaded groove. The top end of the bottom cover 802 is located inside the connecting pipe 801 and is embedded with a magnet rod 803. The magnet rod 803 is used to absorb powder in the gear oil.

[0034] The working principle of the utility model is: the driving motor 2 drives the first shaft 9 and the first gear 18 outside thereof to rotate through the cycloid pinwheel reducer body 1, and the first gear 18 rotates through the second gear 19 outside the second shaft 10 to drive the third gear 20 to rotate, thereby driving the third shaft 11 to rotate, the first shaft 9 and the third shaft 11 penetrate the shell cover 4, and can drive two devices to rotate at the same time, the second gear 19 plays a transmission role between the first gear 18 and the third gear 20, so that the first shaft 9 inside the first gear 18 and the third shaft 11 inside the third gear 20 can rotate synchronously, open the sealing cover 702, and the gear oil can be poured into the shell 3 through the oil inlet pipe 701, so as to facilitate the lubrication of the first gear 18, the second gear 19 and the third gear 20 in the shell 3, so that they can rotate smoothly, and the oil inlet pipe 701 can be used to lubricate the first gear 18, the second gear 19 and the third gear 20 in the shell 3. The filter screen 703 in the oil pipe 701 can filter impurities in the gear oil to prevent them from entering the housing 3 with the gear oil, thereby affecting the rotation of the first gear 18, the second gear 19 and the third gear 20. The powder generated by the friction between the first gear 18, the second gear 19 and the third gear 20 during operation will be mixed into the gear oil. After the powder settles, it falls into the connecting pipe 801 and is adsorbed by the magnet bar 803. The powder adsorbed by the magnet bar 803 can be cleaned by opening the bottom cover 802. The connecting sleeve 5 and the connecting flange 6 play a connecting role, which is convenient for fixing the housing 3 on the cycloid pinwheel reducer body 1. The baffle 12 and the first sealing sleeve 13 are sealed between the first shaft rod 9 and the connecting flange 6. The second sealing sleeve 16 is sealed between the shell cover 4 and the first shaft rod 9 and the third shaft rod 11 to prevent gear oil leakage.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-axis cycloid pinwheel reducer, comprising a cycloid pinwheel reducer body (1), a housing (3), a first shaft (9), a sheath (15) and a second sealing sleeve (16); Features: The power input end of the cycloid pinwheel reducer body (1) is fixed with a driving motor (2) via bolts; a housing (3) is provided on a side of the cycloid pinwheel reducer body (1) away from the driving motor (2); a first shaft (9) is rotatably connected to the inside of the housing (3) via a bearing; a first gear (18) is provided on the outside of the first shaft (9) via a flat key fixing sleeve; a third shaft (11) is rotatably connected to the inside of the housing (3) away from the first shaft (9) via a bearing; the outside of the third shaft (11) is fixed via a flat key. A third gear (20) is sleeved therein; the housing (3) is located between the third shaft (11) and the first shaft (9) and is rotatably connected to the second shaft (10) via a bearing; a second gear (19) is sleeved therein on the outer side of the second shaft (10) via a flat key fixing sleeve; a connecting sleeve (5) is welded to a side of the housing (3) close to the cycloid pinwheel reducer body (1); a baffle (12) is fixed to the inside of the connecting sleeve (5) via bolts; and a shell cover (4) is fixed to a side of the housing (3) away from the connecting sleeve (5) via bolts.

2. A double-shaft cycloid pinwheel reducer according to claim 1, characterized in that: A connecting flange (6) is welded to one side of the connecting sleeve (5), and the connecting flange (6) is fixed to the power input end of the cycloid pinwheel reducer body (1) by means of bolts. A sealing gasket (14) is glued to the side of the connecting flange (6) away from the connecting sleeve (5).

3. A double-shaft cycloid pinwheel reducer according to claim 1, characterized in that: A sheath (15) is welded to both ends of one side of the shell cover (4); a second sealing sleeve (16) is embedded in the side of the shell cover (4) away from the sheath (15); one end of the second sealing sleeve (16) is located inside the sheath (15); and a sealing ring (17) is glued to the side of the shell cover (4) located outside the second sealing sleeve (16).

4. A double-shaft cycloid pinwheel reducer according to claim 1, characterized in that: The baffle (12) is sleeved with a first sealing sleeve (13), one end of the first shaft rod (9) passes through the first sealing sleeve (13), and the other end of the first shaft rod (9) and one end of the third shaft rod (11) both pass through the second sealing sleeve (16) and the protective sleeve (15).

5. The double-shaft cycloid pinwheel reducer according to claim 1, characterized in that: An oil injection assembly (7) is arranged on the top of the housing (3), and the oil injection assembly (7) comprises an oil inlet pipe (701) welded to the top of the housing (3), a filter screen (703) is fixed inside the oil inlet pipe (701) via a slot, and a sealing cover (702) is connected to the top of the oil inlet pipe (701) via a threaded groove.

6. A double-shaft cycloid pinwheel reducer according to claim 1, characterized in that: A sundry storage assembly (8) is provided at the bottom of the shell (3), the sundry storage assembly (8) comprising a connecting pipe (801) welded to the bottom of the shell (3), the bottom end of the connecting pipe (801) being connected to a bottom cover (802) via a threaded groove, and a magnet rod (803) being embedded at the top end of the bottom cover (802) located inside the connecting pipe (801).