Push rod guide sleeve for driver

Abstract

The push rod guide sleeve comprises a guide sleeve body, the guide sleeve body comprises an inner hole used for containing a push rod and a fixing plate used for fixing the guide sleeve body, and an oil storage cavity used for storing lubricating oil and an oil filling hole communicated with the oil storage cavity are formed in the fixing plate. The fixing plate is provided with a first plug in threaded connection with the oil filling hole, the guide sleeve body is provided with an oil leakage hole communicated with the oil storage cavity, the oil leakage hole is communicated with the inner hole, an oil guide pipe and an oil guide cotton strip are movably connected into the oil storage cavity, one end of the oil guide cotton strip extends into the oil leakage hole, and the other end of the oil guide cotton strip is connected into the oil guide pipe. And a plurality of oil immersion holes corresponding to the oil guide cotton slivers are formed in the outer wall of the oil guide pipe. The device has the advantages that the driver does not need to stop working to feed lubricating oil, when the push rod reciprocates in the guide sleeve, the lubricating oil in the oil storage cavity can automatically flow into the inner hole of the guide sleeve and fall between the outer walls of the push rod to form a lubricating layer, and abrasion between the push rod and the guide sleeve is reduced.

Description

Technical Field

[0001] This utility model relates to the field of actuator technology, and more specifically, it relates to a push rod guide sleeve for an actuator. Background Technology

[0002] The actuator has a wide range of applications in industrial automation, robotics and other fields. As one of the key components, the push rod guide sleeve mainly plays the role of guiding and supporting the push rod, guiding the linear movement of the push rod, ensuring that the push rod moves smoothly along the predetermined trajectory during the movement, preventing the push rod from deviating or swaying, and providing necessary support for the push rod. It also bears the lateral forces and loads generated by the push rod during the movement, so as to reduce the bending deformation of the push rod, extend the service life of the push rod, and ensure that the push rod can perform linear movement smoothly and accurately.

[0003] However, when the push rod reciprocates within the guide sleeve, it will rub against the guide sleeve. The usual practice is to add lubricating oil between the push rod and the inner wall of the guide sleeve for lubrication. However, the drive needs to be stopped before the lubricating oil is applied. The reciprocating motion of the push rod within the guide sleeve cannot allow the lubricating oil to automatically flow into the space between the inner wall of the guide sleeve and the outer wall of the push rod to form a lubricating layer and reduce wear between the push rod and the guide sleeve. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a push rod guide sleeve for a driver.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A push rod guide sleeve for a driver includes a guide sleeve body, which includes an inner hole for accommodating a push rod and a fixing plate for fixing the guide sleeve body. The fixing plate has an oil storage chamber for storing lubricating oil and an oil filling hole communicating with the oil storage chamber. The fixing plate is provided with a first plug that is threadedly connected to the oil filling hole. The guide sleeve body has an oil leakage hole communicating with the oil storage chamber and communicating with the inner hole. An oil guide tube and an oil guide cotton strip are movably connected in the oil storage chamber. One end of the oil guide cotton strip extends into the oil leakage hole, and the other end of the oil guide cotton strip is connected to the oil guide tube. The outer wall of the oil guide tube has a plurality of oil immersion holes corresponding to the oil guide cotton strip.

[0007] Further configured, the fixing plate has a first connecting hole and a second connecting hole, the two ends of the second connecting hole are respectively connected to the first connecting hole and the oil storage chamber, and the second connecting hole corresponds to the oil leakage hole. The diameter of the second connecting hole is smaller than the diameter of the first connecting hole. One end of the oil guide tube corresponds to the oil leakage hole. A second plug for sealing the second connecting hole is provided in the first connecting hole. The second plug is threadedly connected to the second connecting hole. The other end of the oil guide tube extends into the second connecting hole and is connected to the second plug. The outer wall of the other end of the oil guide tube is threaded. The other end of the oil guide tube is threadedly connected to the second connecting hole through the thread.

[0008] Further configured, the second plug is movably connected to a handle for facilitating the rotation of the oil guide tube, the second plug includes a stud threadedly connected to the second connecting hole and a sealing plate for sealing the second connecting hole, the sealing plate is placed inside the first connecting hole and fixedly connected to the stud.

[0009] Further configured, the sealing plate has two movable holes corresponding to the two ends of the handle, and the stud has two movable slots corresponding to the two movable holes. The cross-section of the movable slot is trapezoidal. The diameter of the movable hole is smaller than the diameter of the opening of the movable slot. An elastic block is movably connected in the movable slot. The elastic block abuts against the inner sidewall of the bottom of the movable slot. The diameter of the elastic block is larger than the diameter of the movable hole. The handle is C-shaped. The two ends of the handle move in the corresponding movable hole and the movable slot respectively and are connected to the elastic block in the corresponding movable slot.

[0010] A further configuration is that the bottom of the oil storage chamber is inclined toward the oil leakage hole.

[0011] By adopting the above technical solution, the beneficial effects of this utility model are as follows: there is no need for the driver to stop working and apply lubricating oil. When the push rod reciprocates in the guide sleeve, the lubricating oil in the oil storage chamber can automatically flow into the inner hole of the guide sleeve and fall between the outer wall of the push rod to form a lubricating layer, thereby reducing the wear between the push rod and the guide sleeve. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 This is a schematic diagram of the structure of the oil-guiding cotton strip and the oil leakage hole.

[0014] Figure 3 This is a schematic diagram of the structure in which the oil guide tube mates with the second connecting hole.

[0015] Figure 4 This is a magnified structural diagram.

[0016] In the figure: 1. Guide sleeve body, 2. Inner hole, 3. Fixing plate, 4. Oil storage chamber, 5. Oil filling hole, 6. First plug, 7. Oil leakage hole, 8. Oil guiding cotton strip, 9. Oil guiding pipe, 901. Oil immersion hole, 10. First connecting hole, 11. Second connecting hole, 12. Second plug, 121. Handle, 122. Stud, 123. Sealing plate, 13. Movable hole, 14. Movable groove, 15. Elastic block. Detailed Implementation

[0017] Reference Figures 1 to 4 The embodiments of this utility model will be further described below.

[0018] A push rod guide sleeve for a driver includes a guide sleeve body 1. The guide sleeve body 1 includes an inner hole 2 for accommodating a push rod and a fixing plate 3 for fixing the guide sleeve body 1. The fixing plate 3 is integrally formed with the guide sleeve body 1. The fixing plate 3 has an oil storage chamber 4 for storing lubricating oil and an oil filling hole 5 communicating with the oil storage chamber 4. The fixing plate 3 is provided with a first plug 6 that is threadedly connected to the oil filling hole 5. The first plug 6 includes a handle for easy unscrewing. The handle allows the operator to easily unscrew the first plug 6 to add oil to the oil filling hole 5 or tighten the first plug 6 to seal the oil filling hole 5 and prevent the lubricating oil in the oil storage chamber 4 from leaking out. Lubricating oil leaks out from the filling hole 5. The guide sleeve body 1 has an oil leakage hole 7 that communicates with the oil storage chamber 4 and the oil leakage hole 7 is connected to the inner hole 2. The lubricating oil in the oil storage chamber 4 falls onto the outer wall of the push rod to form a lubricating layer. The oil storage chamber 4 is movably connected to the oil guide tube 9 and the oil guide cotton strip 8. One end of the oil guide cotton strip 8 extends into the oil leakage hole 7, and the other end of the oil guide cotton strip 8 is connected to the oil guide tube 9, so that the lubricating oil can smoothly pass through the oil leakage hole 7 into the inner hole 2. At the same time, it prevents the oil leakage hole 7 from leaking out. The outer wall of the oil guide tube 9 has several oil immersion holes 901 corresponding to the oil guide cotton strip 8, so that the lubricating oil in the oil storage chamber 4 can immerse into the oil guide cotton strip 8.

[0019] During operation, the first plug 6 is unscrewed by the handle to open the oil filling hole 5, and the lubricating oil is added to the oil storage chamber 4 through the oil filling hole 5. Then, the first plug 6 is tightened to seal the oil filling hole 5 to prevent the lubricating oil in the oil storage chamber 4 from leaking out of the oil filling hole 5. The guide sleeve body 1 is mounted on the relevant equipment or mechanism via the fixing plate 3. The push rod moves back and forth in the inner hole 2 of the guide sleeve body 1. The oil guide tube 9 is set to facilitate the insertion of the oil guide cotton strip 8 into the oil storage chamber 4 and into the oil leakage hole 7 to guide the lubricating oil into the inner hole 2.

[0020] When the push rod moves within the inner hole 2, the lubricating oil is easily absorbed into the oil guide strip 8 through the oil immersion hole 901 on the oil guide tube 9. This facilitates better absorption of the lubricating oil in the oil storage chamber 4 by the oil guide strip 8. Furthermore, the oil guide strip 8 extends into the oil drain hole 7, allowing the lubricating oil in the oil storage chamber 4 to be smoothly guided into the inner hole 2 through the oil drain hole 7, forming an oil guide layer on the push rod. As the push rod reciprocates within the inner hole 2, the lubricating oil flows through the oil guide strip 8 and the oil drain hole 7 onto the outer wall of the push rod and is evenly coated. On the contact surface between the push rod and the inner hole 2, lubrication is provided for the movement of the push rod, reducing friction and extending the service life of the push rod and the guide sleeve body 1. At the same time, the design of the oil guide strip 8 and the oil leakage hole 7 prevents excessive lubricating oil from overflowing from the oil leakage hole 7, causing lubricating oil waste. Ultimately, it achieves the goal of lubricating oil without stopping the drive to stop working. When the push rod reciprocates in the guide sleeve, the lubricating oil in the oil storage chamber 4 can automatically flow into the inner hole 2 of the guide sleeve and fall between the outer wall of the push rod to form a lubricating layer, reducing the wear between the push rod and the guide sleeve.

[0021] The fixing plate 3 has a first connecting hole 10 and a second connecting hole 11. The two ends of the second connecting hole 11 are connected to the first connecting hole 10 and the oil storage chamber 4, respectively, and the second connecting hole 11 corresponds to the oil leakage hole 7. The diameter of the second connecting hole 11 is smaller than the diameter of the first connecting hole 10. One end of the oil guide tube 9 corresponds to the oil leakage hole 7. The first connecting hole 10 is provided with a second plug 12 for sealing the second connecting hole 11. The second plug 12 is threadedly connected to the second connecting hole 11. The other end of the oil guide tube 9 extends into the second connecting hole 11 and is connected to the second plug 12. The outer wall of the other end of the oil guide tube 9 is threaded, and the other end of the oil guide tube 9 is threadedly connected to the second connecting hole 11 through the thread.

[0022] Before adding lubricating oil into the oil storage chamber 4, insert the oil guide cotton strip 8 into the oil guide tube 9 and extend one end of the oil guide cotton strip 8 out of the oil guide tube 9. The oil guide tube 9 is threadedly connected to the second connecting hole 11. Rotate the second plug 12 to allow the oil guide tube 9 to gradually enter the oil storage chamber 4, and facilitate the oil guide tube 9 to close the second connecting hole 11. This allows one end of the oil guide cotton strip 8 to extend into the oil leakage hole 7, which facilitates the subsequent smooth flow of lubricating oil from the oil storage chamber 4 into the oil leakage hole 7, into the inner hole 2, and onto the push rod to form a lubricating layer. The second plug 12 is then threadedly connected to the second connecting hole 11, which further seals the second connecting hole 11 to prevent lubricating oil from leaking out of the oil storage chamber 4.

[0023] The second plug 12 is movably connected to a handle 121 for easy rotation of the oil guide tube 9. The second plug 12 includes a stud 122 threadedly connected to the second connecting hole 11 and a sealing plate 123 for sealing the second connecting hole 11. The sealing plate 123 is placed in the first connecting hole 10 and fixedly connected to the stud 122. The sealing plate 123 has two movable holes 13 corresponding to the two ends of the handle 121. The stud 122 has two movable grooves 14 corresponding to the two movable holes 13. The cross-section of the movable groove 14 is trapezoidal. The diameter of the movable hole 13 is smaller than the diameter of the opening of the movable groove 14. An elastic block 15 is movably connected in the movable groove 14. The elastic block 15 abuts against the inner sidewall of the bottom of the movable groove 14. The diameter of the elastic block 15 is larger than the diameter of the movable hole 13. The handle 121 is C-shaped. The two ends of the handle 121 move in the corresponding movable hole 13 and the movable groove 14 respectively and are connected to the elastic block 15 in the corresponding movable groove 14.

[0024] The handle 121 moves within the movable hole 13 and the movable groove 14 at both ends, facilitating its retraction into the first connecting hole 10. The elastic block 15 moves towards the bottom of the movable groove 14, contacting the inner wall of the bottom of the groove 14 to fix the handle 121 in this position, preventing it from extending out of the first connecting hole 10 and interfering with the connection between the fixing plate 3 and related equipment or mechanisms. When it is necessary to rotate the second plug 12 to remove the oil guide tube 9 from the oil storage chamber 4, the handle 121 is pulled out of the first connecting hole 10, causing the elastic block 15 to move to the opening of the movable groove 14, engaging with the movable hole 13. The diameter is smaller than the opening diameter of the movable groove 14 to prevent the handle 121 from being pulled out of the movable hole 13 and disconnected from the second plug 12. This avoids affecting the subsequent application of force to the second plug 12 to rotate the oil guide tube 9 and remove it from the oil storage chamber 4. This facilitates the periodic replacement of the oil guide cotton strip 8 inside the oil guide tube 9. At the same time, the oil guide tube 9 is easy to remove from the oil storage chamber 4, which is beneficial for using a thin rod tool that can pass through the first connecting hole 10, the second connecting hole 11 and the oil leakage hole 7 to clean the oil leakage hole 7. This prevents the oil leakage hole 7 from becoming clogged after long-term use, which would prevent the lubricating oil from smoothly entering the inner hole 2 of the guide sleeve body.

[0025] The bottom of the oil storage chamber 4 is inclined toward the oil leakage hole 7, which facilitates the lubricating oil in the oil storage chamber 4 to flow more smoothly to the oil leakage hole 7. At the same time, as the lubricating oil in the oil storage chamber 4 gradually decreases, the remaining lubricating oil can also smoothly enter the inner hole 2 of the guide sleeve body through the oil leakage hole 7.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A push rod guide sleeve for a driver, comprising a guide sleeve body (1), the guide sleeve body (1) including an inner hole (2) for receiving a push rod and a fixing plate (3) for fixing the guide sleeve body (1), characterized in that, The fixed plate (3) has an oil storage chamber (4) for storing lubricating oil and an oil filling hole (5) communicating with the oil storage chamber (4). The fixed plate (3) is provided with a first plug (6) threadedly connected to the oil filling hole (5). The guide sleeve body (1) has an oil leakage hole (7) communicating with the oil storage chamber (4) and the oil leakage hole (7) communicating with the inner hole (2). The oil storage chamber (4) is movably connected with an oil guide tube (9) and an oil guide cotton strip (8). One end of the oil guide cotton strip (8) extends into the oil leakage hole (7) and the other end of the oil guide cotton strip (8) is connected to the oil guide tube (9). The outer wall of the oil guide tube (9) has several oil immersion holes (901) corresponding to the oil guide cotton strip (8).

2. The push rod guide sleeve for a driver according to claim 1, characterized in that, The fixing plate (3) has a first connecting hole (10) and a second connecting hole (11). The two ends of the second connecting hole (11) are connected to the first connecting hole (10) and the oil storage chamber (4) respectively. The second connecting hole (11) corresponds to the oil leakage hole (7). The diameter of the second connecting hole (11) is smaller than the diameter of the first connecting hole (10). One end of the oil guide pipe (9) corresponds to the oil leakage hole (7). The first connecting hole (10) is provided with a second plug (12) for sealing the second connecting hole (11). The second plug (12) is threadedly connected to the second connecting hole (11). The other end of the oil guide pipe (9) extends into the second connecting hole (11) and is connected to the second plug (12). The outer wall of the other end of the oil guide pipe (9) is provided with threads. The other end of the oil guide pipe (9) is threadedly connected to the second connecting hole (11) through the threads.

3. A push rod guide sleeve for a driver according to claim 2, characterized in that, The second plug (12) is movably connected to a handle (121) for rotating the oil guide pipe (9). The second plug (12) includes a stud (122) threadedly connected to the second connecting hole (11) and a sealing plate (123) for sealing the second connecting hole (11). The sealing plate (123) is placed inside the first connecting hole (10) and fixedly connected to the stud (122).

4. A push rod guide sleeve for a driver according to claim 3, characterized in that, The sealing plate (123) has two movable holes (13) corresponding to the two ends of the handle (121), and the stud (122) has two movable slots (14) corresponding to the two movable holes (13). The cross-section of the movable slot (14) is trapezoidal. The diameter of the movable hole (13) is smaller than the diameter of the opening of the movable slot (14). An elastic block (15) is movably connected in the movable slot (14). The elastic block (15) abuts against the inner sidewall of the bottom of the movable slot (14). The diameter of the elastic block (15) is larger than the diameter of the movable hole (13). The handle (121) is C-shaped. The two ends of the handle (121) move in the corresponding movable hole (13) and the movable slot (14) respectively and are connected to the elastic block (15) in the corresponding movable slot (14).

5. A push rod guide sleeve for a driver according to claim 4, characterized in that, The bottom of the oil storage chamber (4) is inclined toward the oil leakage hole (7).

Images