Movable arm assembly
By designing a lubrication device in the movable arm assembly, using the coordination of fixing frames, positioning blocks, screws and other components, uniform lubrication of the inner wall of the sleeve is achieved, which solves the problems of lag and lubricating oil waste caused by long-term use of the movable arm, and improves the lubrication effect and oil utilization rate.
Patent Information
- Application Number
- CN202421893855.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-06
AI Technical Summary
After a long time of use, the movable arm will stutter due to environmental influences. It is easy to spill when pouring lubricant into the inner wall of the sleeve, resulting in waste of lubricant and reduced lubricating effect of the sleeve.
A movable arm assembly is designed, including a lubrication device, which consists of a fixing frame, a positioning block, a screw, a limiting block, a stop frame, an oil inlet pipe, a sponge plate and an oil outlet hole. Through the cooperation of these components, a uniform addition of lubricating oil is achieved to the inner wall of the sleeve.
It effectively avoids lag problems caused by long-term use of the movable arm, improves the utilization rate of lubricant, enhances the lubricating effect of the sleeve, and reduces the waste of lubricant.
Smart Images
Figure CN223013220U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of movable arms, in particular to a movable arm assembly. Background Art
[0002] A movable arm generally refers to a mechanical device used to provide rotational or other types of motion in a machine or equipment, and is widely used in industrial automation, robotics, aerospace, and some precision machinery. A movable arm assembly usually refers to a mechanical component that can perform multi-angle motion around a certain central axis without being completely fixed. They are widely used in occasions such as robotic arms, robots, and aircraft landing gears, and their main function is to carry and move loads.
[0003] The above and existing technologies have the following defects: During the actual use of the movable arm, after long-term use, the movable arm will be affected by the environment, resulting in jamming of the movable arm. When lubricating oil is directly poured into the inner wall of the sleeve, it will spill, which will cause unnecessary waste of the lubricating oil, thereby reducing the lubrication effect on the sleeve.
[0004] Therefore, a movable arm assembly is proposed. Content of the Utility Model
[0005] The purpose of the utility model is to solve the defect that after long-term use, the movable arm will be affected by the environment, resulting in jamming of the movable arm. When lubricating oil is directly poured into the inner wall of the sleeve, it will spill, which will cause unnecessary waste of the lubricating oil, thereby reducing the lubrication effect on the sleeve, and a movable arm assembly is proposed.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A movable arm assembly includes a sleeve, an arm body is installed on the surface of the sleeve, a connecting piece is installed on the surface of the arm body, a movable piece is installed on the surface of the arm body, a lubricating device is arranged on the surface of the sleeve, the lubricating device includes a fixed frame, the fixed frame is fixedly connected with the sleeve, two positioning blocks are fixedly connected to the surface of the fixed frame, screw rods are threadedly connected to the surfaces of the two positioning blocks, a limiting block is threadedly connected to the arc surface of the screw rod, a blocking frame is fixedly connected to the surface of the limiting block, an oil inlet pipe is communicated with the surface of the blocking frame, a sponge plate is fixedly connected to the surface of the blocking frame, and a plurality of oil outlet holes are formed in the surface of the fixed frame, and the plurality of oil outlet holes are all communicated with the sleeve.
[0007] The effects achieved by the above components are as follows: By setting up a lubrication device and utilizing the cooperation among the fixed frame, positioning block, lead screw, limit block, retaining frame, oil inlet pipe, sponge plate, and oil outlet holes, it is possible to evenly apply lubricating oil to the inner wall of the sleeve, avoiding the situation where the movable arm gets stuck under the influence of the environment after long-term use. When directly pouring lubricating oil into the inner wall of the sleeve, there will be spillage, which will cause unnecessary waste of the lubricating oil, resulting in a reduction in the lubrication effect of the sleeve. Therefore, the utilization rate of the lubricating oil is improved, and further the lubrication effect of the movable arm sleeve is enhanced.
[0008] Preferably, an oil outlet hose is communicated with the surface of the sponge plate, and the size of the oil outlet hose is adapted to that of the oil outlet holes.
[0009] The effects achieved by the above components are as follows: The sponge plate will guide the lubricating oil into the oil outlet hose in the oil outlet holes, and at this time, the oil outlet hose can prevent the lubricating oil from sticking to the inner wall of the oil outlet holes.
[0010] Preferably, a rotating bead is rotatably connected to one end of the oil outlet hose, and the rotating bead is slidably connected to the oil outlet hole.
[0011] The effects achieved by the above components are as follows: The inner wall of the sleeve will drive the rotating bead to slide along the surface of the object, and at this time, the rotating bead can apply the lubricating oil more evenly on the surface of the object.
[0012] Preferably, a fixing plate is fixedly connected to the surface of the oil outlet hose, the fixing plate is fixedly connected to the oil outlet hole, a sliding plate is fixedly connected to the surface of the oil outlet hose, the sliding plate is slidably connected to the oil outlet hole, a spring is sleeved on the surface of the oil outlet hose, and both ends of the spring are fixedly connected to the fixing plate and the sliding plate respectively.
[0013] The effects achieved by the above components are as follows: When the sleeve is sleeved on the object, the object will squeeze the rotating bead, then the rotating bead will drive one end of the oil outlet hose to move, at the same time, the oil outlet hose will drive the sliding plate to move, then the sliding plate will drive one end of the spring to move, and then the fixing plate and the sliding plate will squeeze the spring. The spring will use its own elastic force to make the rotating bead closely fit with the surface of the object. By utilizing the cooperation among the fixing plate, sliding plate, and spring, the rotating bead can better fit with the object on the inner wall of the sleeve.
[0014] Preferably, a gasket is fixedly connected to the arc surface of the lead screw, and the gasket is a rubber sheet.
[0015] The effects achieved by the above components are as follows: The lead screw will drive the gasket to move, and at this time, the gasket made of rubber material can increase the friction force at the contact surface between the lead screw and the limit block, preventing the lead screw from slipping.
[0016] Preferably, one end of the lead screw is fixedly connected with an elastic rope, and the other end of the elastic rope is fixedly connected with the blocking frame.
[0017] The effect achieved by the above components is that the lead screw drives one end of the elastic rope to move, and at this time, the elastic rope can prevent the lead screw from being lost during disassembly.
[0018] Preferably, a pointed cone is fixedly connected to one end of the lead screw, and the pointed cone is a stainless steel cone.
[0019] The effect achieved by the above components is that the lead screw drives the pointed cone to move, and at this time, the pointed cone can facilitate the lead screw to enter the positioning block.
[0020] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.
[0021] 1. In the present utility model, by setting a lubricating device and using the cooperation among the fixed frame, positioning block, lead screw, limiting block, blocking frame, oil inlet pipe, sponge plate and oil outlet holes, uniform addition of lubricating oil to the inner wall of the sleeve can be realized, avoiding the situation that after long-term use, the moving arm will be stuck under the influence of the environment, and the situation of spilling when directly pouring the lubricating oil into the inner wall of the sleeve, which will cause unnecessary waste of the lubricating oil, resulting in a reduction in the lubricating effect on the sleeve, improving the utilization rate of the lubricating oil, and further improving the lubricating effect on the moving arm sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is a schematic diagram of the overall structure of the present utility model.
[0023] Figure 2 is for the present utility model Figure 1 exploded structure diagram;
[0024] Figure 3 is for the present utility model Figure 2 partial structure diagram;
[0025] Figure 4 is for the present utility model Figure 1 enlarged view of part A;
[0026] Figure 5 is for the present utility model Figure 3 enlarged view of part B.
[0027] Legend: 1. Sleeve; 2. Arm body; 3. Connecting piece; 4. Movable piece; 5. Lubricating device; 501. Fixed frame; 502. Positioning block; 503. Lead screw; 504. Limit block; 505. Baffle; 506. Oil inlet pipe; 507. Sponge board; 508. Oil outlet hole; 509. Oil outlet hose; 510. Rotating bead; 511. Fixed plate; 512. Slide plate; 513. Spring; 514. Gasket; 515. Elastic cord; 516. Sharp cone. Detailed implementation manners
[0028] In order to more clearly understand the above objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
[0029] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.
[0030] As Figures 1-5 shown, the present utility model provides a movable arm assembly, including a sleeve 1, an arm body 2 is installed on the surface of the sleeve 1, a connecting piece 3 is installed on the surface of the arm body 2, a movable piece 4 is installed on the surface of the arm body 2, and a lubricating device 5 is provided on the surface of the sleeve 1.
[0031] The following specifically describes the specific setting and function of its lubricating device 5.
[0032] As Figures 2-5As shown in the figure, the lubrication device 5 includes a fixed frame 501. The fixed frame 501 is fixedly connected to the sleeve 1. Two positioning blocks 502 are fixedly connected to the surface of the fixed frame 501. Threaded rods 503 are threadedly connected to the surfaces of the two positioning blocks 502. A limit block 504 is threadedly connected to the arc surface of the threaded rod 503. A retaining frame 505 is fixedly connected to the surface of the limit block 504. An oil inlet pipe 506 is communicated with the surface of the retaining frame 505. A sponge plate 507 is fixedly connected to the surface of the retaining frame 505. A number of oil outlet holes 508 are formed in the surface of the fixed frame 501. All the number of oil outlet holes 508 are communicated with the sleeve 1. An oil outlet hose 509 is communicated with the surface of the sponge plate 507. The size of the oil outlet hose 509 is adapted to that of the oil outlet hole 508. The sponge plate 507 will introduce the lubricating oil into the oil outlet hose 509 in the oil outlet hole 508. At this time, the oil outlet hose 509 can prevent the lubricating oil from adhering to the inner wall of the oil outlet hole 508. A rotating bead 510 is rotatably connected to one end of the oil outlet hose 509. The rotating bead 510 is slidably connected to the oil outlet hole 508. The inner wall of the sleeve 1 will drive the rotating bead 510 to slide along the surface of the object. At this time, the rotating bead 510 can apply the lubricating oil more evenly on the surface of the object. A fixing plate 511 is fixedly connected to the surface of the oil outlet hose 509. The fixing plate 511 is fixedly connected to the oil outlet hole 508. A sliding plate 512 is fixedly connected to the surface of the oil outlet hose 509. The sliding plate 512 is slidably connected to the oil outlet hole 508. A spring 513 is sleeved on the surface of the oil outlet hose 509. The two ends of the spring 513 are respectively fixedly connected to the fixing plate 511 and the sliding plate 512. When the sleeve 1 is sleeved on the object, the object will squeeze the rotating bead 510. Then the rotating bead 510 will drive one end of the oil outlet hose 509 to move. At the same time, the oil outlet hose 509 will drive the sliding plate 512 to move. Then the sliding plate 512 will drive one end of the spring 513 to move. Then the fixing plate 511 and the sliding plate 512 will squeeze the spring 513. The spring 513 will use its own elastic force to make the rotating bead 510 closely fit the surface of the object. By means of the cooperation among the fixing plate 511, the sliding plate 512 and the spring 513, the rotating bead 510 can better fit the object on the inner wall of the sleeve 1. A gasket 514 is fixedly connected to the arc surface of the threaded rod 503. The gasket 514 is a rubber sheet. The threaded rod 503 will drive the gasket 514 to move. At this time, the gasket 514 made of rubber can increase the friction force between the threaded rod 503 and the contact surface of the limit block 504, preventing the threaded rod 503 from slipping threads. One end of the threaded rod 503 is fixedly connected to an elastic cord 515. The other end of the elastic cord 515 is fixedly connected to the retaining frame 505. The threaded rod 503 will drive one end of the elastic cord 515 to move. At this time, the elastic cord 515 can prevent the threaded rod 503 from being lost when disassembled. One end of the threaded rod 503 is fixedly connected to a sharp cone 516. The sharp cone 516 is a stainless steel cone. The threaded rod 503 will drive the sharp cone 516 to move. At this time, the sharp cone 516 can facilitate the threaded rod 503 to enter the positioning block 502.
[0033] The overall working principle is as follows. First, rotate the lead screw 503. Then, the lead screw 503 will rotate along the surface of the limit block 504. At this time, the lead screw 503 will move along the limit block 504 towards the positioning block 502 by means of its own thread. Then, the lead screw 503 will drive the tapered cone 516 to move. At this time, the tapered cone 516 can facilitate the entry of the lead screw 503 into the positioning block 502. At the same time, the lead screw 503 will drive one end of the elastic rope 515 to move. At this time, the elastic rope 515 can prevent the lead screw 503 from being lost when disassembled. Then, the lead screw 503 will drive the gasket 514 to move. At this time, the gasket 514 made of rubber can increase the friction force on the contact surface between the lead screw 503 and the limit block 504, preventing the lead screw 503 from slipping. When it is necessary to lubricate the sleeve 1, the sleeve 1 can be sleeved on an object. At this time, the object will squeeze the rotating bead 510. Then, the rotating bead 510 will drive one end of the oil outlet hose 509 to move. At the same time, the oil outlet hose 509 will drive the slide plate 512 to move. Then, the slide plate 512 will drive one end of the spring 513 to move. Then, the fixed plate 511 and the slide plate 512 will squeeze the spring 513. The spring 513 will use its own elastic force to make the rotating bead 510 closely fit the surface of the object. By using the cooperation between the fixed plate 511, the slide plate 512 and the spring 513, the rotating bead 510 can better fit the object on the inner wall of the sleeve 1. Then, the lubricating oil can be poured into the inlet pipe 506. Then, the lubricating oil will enter the sponge plate 507 along the inlet pipe 506. Then, the sponge plate 507 will guide the lubricating oil into the oil outlet hose 509 in the oil outlet hole 508. At this time, the oil outlet hose 509 can prevent the lubricating oil from sticking to the inner wall of the oil outlet hole 508. Then, the oil outlet hose 509 will guide the lubricating oil onto the arc surface of the rotating bead 510. Then, by rotating the arm body 2 to drive the sleeve 1 to rotate, at this time, the inner wall of the sleeve 1 will drive the rotating bead 510 to slide along the surface of the object. At this time, the rotating bead 510 can smear the lubricating oil more evenly on the surface of the object, making the lubricating oil better reduce the friction force between the sleeve 1 and the object. By setting the lubricating device 5, through the cooperation between the fixed frame 501, the positioning block 502, the lead screw 503, the limit block 504, the retaining frame 505, the inlet pipe 506, the sponge plate 507 and the oil outlet hole 508, the lubricating oil can be evenly added to the inner wall of the sleeve 1, avoiding the situation that after long-term use, the movable arm will be stuck under the influence of the environment. When the lubricating oil is directly poured into the inner wall of the sleeve 1, it will spill, which will cause unnecessary waste of the lubricating oil, resulting in a reduction in the lubrication effect of the sleeve 1, improving the utilization rate of the lubricating oil, and further improving the lubrication effect of the movable arm sleeve 1.
[0034] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A movable arm assembly, comprising a sleeve (1), characterized in that: An arm body (2) is mounted on the surface of the sleeve (1), a connecting piece (3) is mounted on the surface of the arm body (2), a movable piece (4) is mounted on the surface of the arm body (2), a lubricating device (5) is provided on the surface of the sleeve (1), the lubricating device (5) comprises a fixing frame (501), the fixing frame (501) is fixedly connected to the sleeve (1), two positioning blocks (502) are fixedly connected to the surface of the fixing frame (501), and the surfaces of the two positioning blocks (502) are both threaded. A threaded rod (503) is connected to the threaded surface of the threaded rod (503), the arc surface of the threaded rod (503) is threadedly connected to a limit block (504), the surface of the limit block (504) is fixedly connected to a retaining frame (505), the surface of the retaining frame (505) is connected to an oil inlet pipe (506), the surface of the retaining frame (505) is fixedly connected to a sponge plate (507), and the surface of the fixed frame (501) is provided with a plurality of oil outlet holes (508), and the plurality of oil outlet holes (508) are all connected to the sleeve (1).
2. A movable arm assembly according to claim 1, characterized in that: The surface of the sponge plate (507) is connected to an oil outlet hose (509), and the size of the oil outlet hose (509) is adapted to the size of the oil outlet hole (508).
3. A movable arm assembly according to claim 2, characterized in that: One end of the oil outlet hose (509) is rotatably connected to a rotating ball (510), and the rotating ball (510) is slidably connected to the oil outlet hole (508).
4. A movable arm assembly according to claim 3, characterized in that: A fixing plate (511) is fixedly connected to the surface of the oil outlet hose (509), and the fixing plate (511) is fixedly connected to the oil outlet hole (508). A slide plate (512) is fixedly connected to the surface of the oil outlet hose (509), and the slide plate (512) is slidably connected to the oil outlet hole (508). A spring (513) is sleeved on the surface of the oil outlet hose (509), and two ends of the spring (513) are fixedly connected to the fixing plate (511) and the slide plate (512) respectively.
5. The movable arm assembly according to claim 1, characterized in that: A gasket (514) is fixedly connected to the arc surface of the screw rod (503), and the gasket (514) is a rubber sheet.
6. A movable arm assembly according to claim 5, characterized in that: One end of the screw rod (503) is fixedly connected to an elastic rope (515), and the other end of the elastic rope (515) is fixedly connected to the blocking frame (505).
7. The movable arm assembly according to claim 5, characterized in that: One end of the screw rod (503) is fixedly connected with a pointed cone (516), and the pointed cone (516) is a stainless steel cone.