Self-lubricating mechanical device

Abstract

The utility model relates to a commutator technical field proposes a kind of self-lubricating mechanical device, comprising: machine case;Commutating drive unit is fixedly installed in the inside of machine case, for changing driving direction;Automatic lubricating device is fixedly installed in the inside of machine case, for automatic lubricating mechanical device;The automatic lubricating device includes support fixedly installed in the top of machine case, guiding cylinder fixedly installed in the inside of support, sealing ring fixedly installed in the inside of machine case. By making solid lubricant be arranged in the just above of driving thread, can make solid lubricant drop by the reason of gravity when using mechanical device, and further make solid lubricant contact with driving thread, and further make solid lubricant smearing on driving thread when rotating driving shaft rotates driving thread, by the intermeshing of driving thread and external gear, solid lubricating on driving thread can be smearing on external gear, and further reduce the friction between driving thread and external gear.

Description

Technical Field

[0001] This utility model belongs to the field of commutator technology, specifically relating to a self-lubricating mechanical device. Background Technology

[0002] The commutator is a key component in a speed reducer, used to change the rotation direction of the output shaft. It is widely used in various types of speed reducers to achieve direction conversion and functional optimization in mechanical transmission systems. The main function of the commutator is to change the rotation direction of the input shaft, making the output shaft rotate in the opposite direction or at a specific angle (such as 90 degrees) to the input shaft. This design plays a crucial role in mechanical transmission systems: the commutator in a right-angle speed reducer can convert the linear motion of the input shaft into vertical motion, simplifying the mechanical structure and improving the system's compactness. The application of commutators can optimize the layout of the transmission system, reduce space occupation, and adapt to different operating conditions.

[0003] A known authorized patent with application number CN202422200246.5 discloses a reversing connection structure and a reducer commutator: It includes a drive shaft, a driven shaft, and a bearing positioning component. A first connecting hole penetrates the center of the bearing positioning component. A first tapered roller bearing is disposed on the inner wall of the first connecting hole. The drive shaft passes through the first tapered roller bearing. A first bevel gear is provided at the end of the drive shaft near the driven shaft. A second bevel gear is fitted on the driven shaft, and the first and second bevel gears mesh. A thread is provided on the outer wall of the drive shaft, and a nut is fitted on the outer wall of the driven shaft, connecting to the thread. The nut abuts against the inner ring of the first tapered roller bearing. This utility model allows the rotating nut to change the position of the inner ring of the first tapered roller bearing relative to the outer ring, thereby adjusting the tightness between the inner and outer rings of the first tapered roller bearing. Furthermore, the first bevel gear is less likely to interfere with the first tapered roller bearing.

[0004] However, during the implementation of the relevant technology, the following problems were found in the above technical solution: the above mechanical device will experience lubricant loss during use, and the lubricant inside the mechanical device will accumulate impurities after prolonged use. Lubricant with impurities will increase friction between gears and affect the service life of the mechanical device.

[0005] Therefore, a self-lubricating mechanical device is proposed to solve the above problems. Utility Model Content

[0006] This utility model proposes a self-lubricating mechanical device, which solves the problem in related technologies that the lubricating oil inside the mechanical device will contain impurities that affect the service life of the mechanical device after prolonged use.

[0007] The technical solution of this utility model is as follows: A self-lubricating mechanical device, comprising:

[0008] Chassis;

[0009] A reversing drive unit, fixedly installed inside the chassis, is used to change the drive direction;

[0010] An automatic lubrication device that is fixedly installed inside the chassis for automatically lubricating mechanical devices;

[0011] The automatic lubrication device includes a bracket fixedly installed on the top of the chassis, a guide cylinder fixedly installed inside the bracket, a sealing ring fixedly installed inside the chassis, a lead screw threaded inside the guide cylinder, a sealing block fixedly installed at the bottom of the lead screw, a solid lubricant fixedly installed at the bottom of the sealing block, and a rotating handle fixedly installed at the top of the lead screw.

[0012] Preferably, the reversing transmission unit includes a first bearing fixedly installed inside the chassis, a drive shaft rotatably installed inside the chassis via the first bearing, a second bearing fixedly installed inside the chassis, a transmission shaft rotatably installed inside the chassis via the second bearing, a first connecting hole opened inside the drive shaft, a second connecting hole opened inside the transmission shaft, a drive thread fixedly installed outside the drive shaft, and an external gear fixedly installed outside the transmission shaft.

[0013] Preferably, a sealing ring is fixedly installed inside the chassis, and there are multiple sealing rings located between the drive shaft and the chassis, and between the transmission shaft and the chassis.

[0014] Preferably, the solid lubricant is located directly above the drive thread, and the drive thread meshes with the external gear.

[0015] Preferably, the sealing block is made of rubber, and the diameter of the sealing block is larger than the inner diameter of the guide cylinder.

[0016] Preferably, the guide cylinder has a threaded groove with a depth of one millimeter inside, and the threaded groove matches the size of the lead screw.

[0017] Preferably, both bearing number one and bearing number two are ball bearings, and there are two bearings in each bearing.

[0018] Preferably, the first connection hole is connected to an external driving device, and the second connection hole is connected to an external driven device.

[0019] The working principle and beneficial effects of this utility model are as follows: By placing the solid lubricant directly above the drive thread, the solid lubricant can fall due to gravity when the mechanical device is used, thereby contacting the drive thread. When the drive shaft rotates and the drive thread rotates, the solid lubricant is applied to the drive thread. By meshing the drive thread with the external gear, the solid lubricant on the drive thread can be applied to the external gear, thereby reducing the friction between the drive thread and the external gear. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the present invention;

[0023] Figure 3 This utility model Figure 2 A magnified view of part A in the image;

[0024] Figure 4 This is a longitudinal sectional view of the present invention;

[0025] Figure 5 This utility model Figure 4 A magnified view of part B in the image.

[0026] In the diagram: 1. Chassis; 2. Bracket; 3. Guide cylinder; 4. Sealing ring; 5. Lead screw; 6. Sealing block; 7. Solid lubricant; 8. Rotating handle; 9. Bearing No. 1; 10. Drive shaft; 11. Bearing No. 2; 12. Transmission shaft; 13. Connecting hole No. 1; 14. Connecting hole No. 2; 15. Drive thread; 16. External gear; 17. Sealing ring. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0028] Implementation

[0029] Please see Figure 1 -5, A self-lubricating mechanical device, comprising:

[0030] Chassis 1;

[0031] A reversing drive unit, fixedly installed inside chassis 1, is used to change the driving direction;

[0032] An automatic lubrication device is fixedly installed inside the chassis 1 for automatically lubricating mechanical devices;

[0033] The automatic lubrication device includes a bracket 2 fixedly installed on the top of the housing 1, a guide cylinder 3 fixedly installed inside the bracket 2, a sealing ring 4 fixedly installed inside the housing 1, a lead screw 5 threaded inside the guide cylinder 3, a sealing block 6 fixedly installed at the bottom of the lead screw 5, a solid lubricant 7 fixedly installed at the bottom of the sealing block 6, and a rotating handle 8 fixedly installed at the top of the lead screw 5.

[0034] The technical solution provided in this embodiment is as follows: In use, the drive shaft 10 is first connected to the external drive device through the first connection hole 13, and then the transmission shaft 12 is connected to the external device that needs to be driven through the second connection hole 14. Then, the external drive device rotates the drive shaft 10 to rotate the drive thread 15. When the drive thread 15 rotates, it will rub against the solid lubricant 7, thereby applying the solid lubricant 7 to the drive thread 15. Then, the drive thread 15 drives the transmission shaft 12 to change the driving direction through the external gear 16, and can also apply the solid lubricant on the drive thread 15 to the external gear 16, thereby reducing the friction between the drive thread 15 and the external gear 16.

[0035] Furthermore, the reversing transmission unit includes a first bearing 9 fixedly installed inside the chassis 1, a drive shaft 10 rotatably installed inside the chassis 1 via the first bearing 9, a second bearing 11 fixedly installed inside the chassis 1, a transmission shaft 12 rotatably installed inside the chassis 1 via the second bearing 11, a first connecting hole 13 opened inside the drive shaft 10, a second connecting hole 14 opened inside the transmission shaft 12, a drive thread 15 fixedly installed outside the drive shaft 10, and an external gear 16 fixedly installed outside the transmission shaft 12.

[0036] Specifically, by using bearing 9 and bearing 11 to rotatably mount drive shaft 10 and transmission shaft 12 inside the housing 1, the influence of external factors on drive shaft 10 and transmission shaft 12 during rotation can be prevented, thus making it easier to rotate drive shaft 10 and transmission shaft 12.

[0037] Furthermore, a sealing ring 17 is fixedly installed inside the chassis 1. There are multiple sealing rings 17, and the multiple sealing rings 17 are located between the drive shaft 10 and the chassis 1, and between the transmission shaft 12 and the chassis 1.

[0038] Specifically, by placing multiple sealing rings 17 between the drive shaft 10 and the chassis 1 and between the transmission shaft 12 and the chassis 1, external dust can be prevented from entering the interior of the chassis 1, increasing the friction of the internal machinery of the chassis 1. It can also maintain the humidity of the solid lubricant 7, preventing the solid lubricant 7 from becoming too dry and affecting the lubrication effect.

[0039] Furthermore, the solid lubricant 7 is located directly above the drive thread 15, and the drive thread 15 meshes with the external gear 16.

[0040] Specifically, by placing the solid lubricant 7 directly above the drive thread 15, the solid lubricant 7 can fall due to gravity when the mechanical device is used, thereby coming into contact with the drive thread 15. When the drive shaft 10 rotates the drive thread 15, the solid lubricant 7 is applied to the drive thread 15. By meshing the drive thread 15 with the external gear 16, the solid lubricant on the drive thread 15 can be applied to the external gear 16, thereby reducing the friction between the drive thread 15 and the external gear 16.

[0041] Furthermore, the sealing block 6 is made of rubber, and the diameter of the sealing block 6 is larger than the inner diameter of the guide cylinder 3.

[0042] Specifically, the sealing block 6 made of rubber can completely block the guide cylinder 3, preventing gas from entering from the top of the guide cylinder 3 and increasing the distance the solid lubricant 7 falls.

[0043] Furthermore, the guide cylinder 3 has a threaded groove with a depth of one millimeter inside, and the threaded groove matches the size of the lead screw 5.

[0044] Specifically, by matching the dimensions of the threaded groove and the lead screw 5, the solid lubricant 7 can be moved when the lead screw 5 rotates, and the one-millimeter threaded groove can be blocked by the rubber sealing block 6 to prevent air circulation.

[0045] Furthermore, both bearing 9 and bearing 11 are ball bearings, and there are two of each bearing.

[0046] Specifically, by setting the number of bearings 9 and 11 to two, the rotation of drive shaft 10 and transmission shaft 12 can be more stable, and the misalignment of drive shaft 10 and transmission shaft 12 during rotation can be prevented.

[0047] Furthermore, the first connection hole 13 is connected to an external drive device, and the second connection hole 14 is connected to an external driven device.

[0048] Specifically, by connecting the first connection hole 13 to an external drive device, the drive shaft 10 can be rotated by the external drive device during use, thereby changing the direction of transmission through the transmission shaft 12.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A self-lubricating mechanical device, characterized in that, include: Chassis (1); A reversing transmission unit is fixedly installed inside the chassis (1) to change the driving direction; An automatic lubrication device is fixedly installed inside the chassis (1) for automatically lubricating mechanical devices; The automatic lubrication device includes a bracket (2) fixedly installed on the top of the housing (1), a guide cylinder (3) fixedly installed inside the bracket (2), a sealing ring (4) fixedly installed inside the housing (1), a screw (5) threaded inside the guide cylinder (3), a sealing block (6) fixedly installed at the bottom of the screw (5), a solid lubricant (7) fixedly installed at the bottom of the sealing block (6), and a rotating handle (8) fixedly installed at the top of the screw (5).

2. The self-lubricating mechanical device according to claim 1, characterized in that: The reversing transmission unit includes a first bearing (9) fixedly installed inside the chassis (1), a drive shaft (10) rotatably installed inside the chassis (1) via the first bearing (9), a second bearing (11) fixedly installed inside the chassis (1), a transmission shaft (12) rotatably installed inside the chassis (1) via the second bearing (11), a first connecting hole (13) opened inside the drive shaft (10), a second connecting hole (14) opened inside the transmission shaft (12), a drive thread (15) fixedly installed outside the drive shaft (10), and an external gear (16) fixedly installed outside the transmission shaft (12).

3. The self-lubricating mechanical device according to claim 1, characterized in that: A sealing ring (17) is fixedly installed inside the chassis (1). There are multiple sealing rings (17), and multiple sealing rings (17) are located between the drive shaft (10) and the chassis (1) and between the transmission shaft (12) and the chassis (1).

4. A self-lubricating mechanical device according to claim 2, characterized in that: The solid lubricant (7) is located directly above the drive thread (15), and the drive thread (15) meshes with the external gear (16).

5. A self-lubricating mechanical device according to claim 1, characterized in that: The sealing block (6) is made of rubber, and the diameter of the sealing block (6) is larger than the inner diameter of the guide cylinder (3).

6. A self-lubricating mechanical device according to claim 1, characterized in that: The guide cylinder (3) has a threaded groove with a depth of one millimeter inside, and the threaded groove matches the size of the lead screw (5).

7. A self-lubricating mechanical device according to claim 2, characterized in that: Both the No. 1 bearing (9) and the No. 2 bearing (11) are ball bearings, and there are two of each of the No. 1 bearing (9) and the No. 2 bearing (11).

8. A self-lubricating mechanical device according to claim 2, characterized in that: The first connection hole (13) is connected to an external driving device, and the second connection hole (14) is connected to an external driven device.

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