CN109442001B - Utilize centrifugal force to realize chain subassembly of self-lubricating regulation - Google Patents

Abstract

The invention provides a chain assembly capable of realizing automatic lubrication adjustment by utilizing centrifugal force, which comprises an inner chain plate, a sleeve, an oil storage cavity, rollers, a lubrication groove, balls, oil absorption cotton, an oil guide hole and springs, wherein the sleeve is inserted into the inner chain plate, the periphery of the sleeve is in rolling connection with the rollers, an oil filling port is formed in one end face of the sleeve, the sleeve comprises an outer wall of the sleeve, the oil storage cavity and an inner wall of the sleeve, a rolling cavity is formed in the periphery of the outer wall of the sleeve, the balls are arranged in the rolling cavity in a rolling mode, the bottom of the rolling cavity is provided with the oil guide hole, the springs are fixedly connected to the bottom of the oil absorption cotton, and the rollers comprise the rolling groove and the lubrication groove. The invention can send the lubricating oil in the sleeve to the lubricating groove due to the matching arrangement of the ball and the sliding groove, and then the lubricating oil on the lubricating groove lubricates the sleeve and the roller.

Description

A chain assembly utilizing centrifugal force to achieve automatic lubrication adjustment

Technical Field

The present invention relates to the technical field of chains, and more specifically, to a chain assembly which utilizes centrifugal force to realize automatic lubrication and adjustment.

Background technique

Chain drive has many advantages, such as accurate transmission ratio, large transmission power, and the ability to work in harsh environments. However, the chain also has many disadvantages, such as vibration, impact and noise during transmission. The main reason for the impact and noise in chain drive is that the chain will be stretched and lengthened after long-term use. One of the reasons why the chain is elongated is that the rollers are constantly rubbing against the sleeves for a long time, which causes the rollers to be quickly worn thin or ground, resulting in a longer wheelbase. Therefore, when the wear of many rollers accumulates, the chain becomes longer.

Based on the above findings of the inventors, the existing chain bushings mainly have the following shortcomings, such as:

The chain of the prior art can only apply lubricating oil or grease on the outside of the chain, and the lubricating oil and grease cannot effectively flow to the rotating connection between the sleeve and the roller, so the lubrication condition between the sleeve and the roller is poor, resulting in serious wear between the sleeve and the roller, affecting the service life of the chain. In the prior art, the self-lubricating chains cannot effectively adjust the oil output of the lubricating oil, which leads to excessive amount of lubricating oil between the chain sleeve and the roller, and the lubricating oil is consumed too quickly, resulting in waste of lubricating oil.

Summary of the invention

In order to solve the above-mentioned problems, the present invention provides a chain assembly that uses centrifugal force to achieve automatic lubrication adjustment, so as to solve the problem that the lubrication condition between the existing sleeve and the roller is poor, resulting in severe wear between the sleeve and the roller.

The purpose and efficacy of a chain assembly that utilizes centrifugal force to achieve automatic lubrication and adjustment are achieved by the following specific technical means: a chain assembly that utilizes centrifugal force to achieve automatic lubrication and adjustment, comprising an inner chain plate, a sleeve, an outer wall of the sleeve, an oil storage cavity, an inner wall of the sleeve, rollers, rolling grooves, lubrication grooves, an oil filling port, a sealing pin, a ball, a rolling cavity, oil-absorbing cotton, an oil guide hole, a spring, a cavity, an expansion block, a connecting rod, an oil guide port, and a sealing plug; a sleeve is inserted into the interior of the inner chain plate, a roller is rollingly connected to the outer periphery of the sleeve, an oil filling port is provided on one end face of the sleeve, a sealing pin is inserted into the oil filling port, and the sleeve comprises an outer wall of the sleeve, an oil storage cavity, an inner wall of the sleeve, an oil filling port, and an inner wall of the sleeve. Wall, the oil storage chamber is located between the outer wall of the sleeve and the inner wall of the sleeve, a rolling chamber is opened on the outer periphery of the outer wall of the sleeve, balls are arranged rollingly inside the rolling chamber, an oil guide hole is opened at the bottom of the rolling chamber, the oil absorbing cotton is located inside the rolling chamber and the oil guide hole, the spring is fixedly connected to the bottom of the oil absorbing cotton, an expansion block is arranged inside the cavity, a connecting rod is bonded to the bottom of the expansion block, a sealing plug is arranged at the other end of the connecting rod, the sealing plug is slidably connected to the inner wall of the oil guide port, the oil guide port is communicated with the oil guide hole, the roller includes a rolling groove and a lubrication groove, the rolling groove is opened on the inner wall of the roller, and the lubrication groove is opened on both sides of the rolling groove.

Furthermore, the rolling groove is semicircular and is used in conjunction with a ball.

Furthermore, an opening is provided above the rolling cavity, and the diameter of the opening is smaller than the diameter of the ball.

Furthermore, one end of the ball extends out of the outer wall of the sleeve, and an opening is formed at the upper end of the cavity.

Furthermore, the depth of the lubrication groove is greater than the depth of the rolling groove.

Furthermore, the spring is always in an upwardly stretched state.

Furthermore, the expansion block is made by mixing a polymer water-absorbing material and rubber.

Furthermore, the height of the sealing plug is two-thirds of the diameter of the oil guide hole, and the sealing plug blocks the oil guide port and separates the oil guide port from the oil guide hole.

Compared with the prior art, the present invention has the following beneficial effects:

Due to the coordinated arrangement of the expansion block and the sealing plug, when the expansion block wilts, the sealing plug automatically opens the oil guide port under the influence of centrifugal force, and then the lubricating oil overflows from the sleeve for lubrication; when there is too much lubricating oil outside the sleeve, the expansion block absorbs the oil and expands, and pushes the sealing plug back to its original position for sealing, thereby automatically stopping the overflow lubrication, and the amount of lubricating oil can be automatically adjusted, saving the lubricating oil.

Due to the matching arrangement of the ball and the rolling groove, the lubricating oil in the sleeve can be sent to the lubricating groove, and then the lubricating oil on the lubricating groove lubricates the sleeve and the roller.

The oil-absorbing cotton and the ball bearing are matched to absorb the lubricating oil in the oil storage cavity, and then the ball bearing delivers the lubricating oil out of the sleeve, so that automatic oil absorption and lubrication can be performed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the front three-dimensional structure of the present invention.

FIG. 2 is a schematic diagram of the back three-dimensional structure of the present invention.

FIG. 3 is a cross-sectional view of a sleeve according to the present invention.

FIG. 4 is a partial enlarged view of point A in FIG. 3 of the present invention.

FIG. 5 is a schematic diagram of a three-dimensional structure of a roller cross section of the present invention.

In Figure 1-5: 1-inner link plate, 2-sleeve, 201-sleeve outer wall, 202-oil storage chamber, 203-sleeve inner wall, 3-roller, 301-rolling groove, 302-lubrication groove, 4-oil filling port, 5-sealing pin, 6-ball, 7-rolling chamber, 8-oil absorbing cotton, 9-oil guide hole, 10-spring, 11-cavity, 12-expansion block, 13-connecting rod, 14-oil guide port, 15-sealing plug.

Detailed ways

It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of the present invention.

It should be noted that in the embodiments of the present invention, all directional indications (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

Example

As shown in Figures 1 to 5:

The present invention provides a chain assembly that uses centrifugal force to achieve automatic lubrication and adjustment, including an inner chain plate 1, a sleeve 2, a sleeve outer wall 201, an oil storage cavity 202, a sleeve inner wall 203, a roller 3, a rolling groove 301, a lubrication groove 302, a refueling port 4, a sealing pin 5, a ball 6, a rolling cavity 7, an oil-absorbing cotton 8, an oil guide hole 9, a spring 10, a cavity 11, an expansion block 12, a connecting rod 13, an oil guide port 14, and a sealing plug 15. The inner chain plate 1 is plugged with the sleeve 2, the outer periphery of the sleeve 2 is rollingly connected with the roller 3, one end surface of the sleeve 2 is provided with a refueling port 4, the refueling port 4 is plugged with a sealing pin 5, the sleeve 2 includes a sleeve outer wall 201, an oil storage cavity 202, and a sleeve inner wall 203, the oil storage cavity 202 is located outside the sleeve Between the wall 201 and the inner wall 203 of the sleeve, a rolling cavity 7 is opened on the outer periphery of the outer wall 201 of the sleeve, and a ball 6 is arranged to roll inside the rolling cavity 7. An oil guide hole 9 is opened at the bottom of the rolling cavity 7. The oil-absorbing cotton 8 is located inside the rolling cavity 7 and the oil guide hole 9. The spring 10 is fixedly connected to the bottom of the oil-absorbing cotton 8. An expansion block 12 is arranged inside the cavity 11. A connecting rod 13 is bonded to the bottom of the expansion block 12. A sealing plug 15 is arranged at the other end of the connecting rod 13. The sealing plug 15 is slidably connected to the inner wall of the oil guide port 14. The oil guide port 14 is communicated with the oil guide hole 9. The roller 3 includes a rolling groove 301 and a lubrication groove 302. The rolling groove 301 is opened on the inner wall of the roller 3, and the lubrication groove 302 is opened on both sides of the rolling groove 301.

The rolling groove 301 is semicircular in shape and is used together with the ball 6 . The ball 6 can roll on the rolling groove 301 .

There is an opening above the rolling cavity 7 , and the diameter of the opening is smaller than the diameter of the ball 6 , so as to prevent the ball 6 from falling from the rolling cavity 7 .

The depth of the lubricating groove 302 is greater than the depth of the rolling groove 301 , which can ensure that the lubricating oil on the rolling groove 301 will flow to the lubricating groove 302 at the lower position.

Among them, the spring 10 is always in an upward outward state. When the ball 6 squeezes the oil-absorbing cotton 8, the spring 10 can provide an upward supporting force to ensure the squeezing effect. At the same time, the spring 10 can also ensure that the ball 6 can always be at the opening of the rolling cavity 7.

The expansion block 12 is made of a mixture of a polymer water-absorbing material and rubber. The expansion block 12 will expand after absorbing liquid and fill the entire cavity 11 after expansion.

Among them, the height of the sealing plug 15 is two-thirds of the diameter of the oil guide hole 9, and the sealing plug 15 blocks the oil guide port 14 and separates the oil guide port 14 from the oil guide hole 9. When the connecting rod 13 moves upward to the top, the sealing plug 15 can completely connect the oil guide hole 9 with the oil guide port 14. When the connecting rod 13 is at the bottom, the sealing plug 15 can completely separate the oil guide hole 9 from the oil guide port 14.

When using the present invention, first add lubricating oil to the oil storage chamber 202 through the oil filling port 4, and then seal the oil filling port 4 with the sealing pin 5. When the chain is working, the sealing plug 15 and the connecting rod 13 will move upward away from the center of the sleeve due to the centrifugal force generated when the sleeve 2 rotates, and after the sealing plug 15 moves, the oil guide hole 9 will communicate with the oil guide port 14, so the lubricating oil in the oil storage chamber 202 will flow to the oil absorbent cotton 8 through the oil guide port 14 and the oil guide hole 9, and then the oil absorbent cotton 8 will be sucked. The oil cotton 8 absorbs the lubricating oil, and then the roller 3 is connected to the sleeve 2 by rotation, so that the roller 3 will roll on the rolling groove 301. When rolling, the ball 6 will squeeze the oil-absorbing cotton 8, and then the lubricating oil in the oil-absorbing cotton 8 will be squeezed into the rolling cavity 7. Then the lubricating oil overflows from the connection between the ball 6 and the rolling cavity 7, and flows into the rolling groove 301 along the outer surface of the ball 6, and then the lubricating oil flows from the rolling groove 301 to the lubricating groove 302. As a result, the lubricating oil in the lubricating groove 302 is affected by the rotation of the roller 3 and drips to the rotating connection between the sleeve 2 and the roller 3 for lubrication. When the external lubrication condition of the sleeve 2 is improved, the excess and flowing lubricating oil on the outer periphery of the sleeve 2 will be squeezed by the sleeve 2 and the roller 3, and the squeezed lubricating oil will fall onto the expansion block 12 through the opening on the cavity 11. The expansion block 12 will absorb the lubricating oil and expand, and push the connecting rod 13 and the sealing plug 15 to move toward the center of the sleeve, thereby sealing the plug 1 5 re-seals the oil guide port 14, and because the expansion block 12 fills the entire cavity 11, the sealing plug 15 and the connecting rod 13 will no longer be affected by the centrifugal force and move upward, and the sealing plug 15 will continue to seal the oil guide port 14. When the lubricating oil outside the sleeve 2 evaporates and is consumed, the expansion block 12 will dry up and return to its original state, so that the sealing plug 15 reopens the oil guide port 14, and the lubricating oil in the oil storage chamber 202 overflows again to lubricate the sleeve 2 and the roller 3.

The above are only preferred embodiments of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims (4)

1. A chain assembly for realizing automatic lubrication and adjustment by utilizing centrifugal force, comprising an inner chain plate (1), a sleeve (2), a roller (3), a rolling groove (301), a lubrication groove (302), an oil filling port (4), a sealing pin (5), a ball (6), a rolling cavity (7), an oil absorbing cotton (8), an oil guide hole (9), a spring (10), a cavity (11), an expansion block (12), a connecting rod (13), an oil guide port (14), and a sealing plug (15), characterized in that a sleeve (2) is inserted into the inner chain plate (1), a roller (3) is rollingly connected to the outer periphery of the sleeve (2), an oil filling port (4) is provided on one end surface of the sleeve (2), a sealing pin (5) is inserted into the oil filling port (4), the sleeve (2) comprises a sleeve outer wall (201), an oil storage cavity (202), and a sleeve inner wall (203), wherein the oil storage cavity (202) is located between the sleeve outer wall (201) and the sleeve inner wall (203). A rolling cavity (7) is provided on the outer circumference of the outer wall (201) of the sleeve, a ball (6) is provided in the rolling cavity (7) for rolling, an oil guide hole (9) is provided at the bottom of the rolling cavity (7), the oil absorbing cotton (8) is located in the rolling cavity (7) and the oil guide hole (9), the spring (10) is fixedly connected to the bottom of the oil absorbing cotton (8), an expansion block (12) is provided in the cavity (11), a connecting rod (13) is bonded to the bottom of the expansion block (12), a sealing plug (15) is provided at the other end of the connecting rod (13), the sealing plug (15) is slidably connected to the inner wall of the oil guide port (14), the oil guide port (14) is communicated with the oil guide hole (9), the roller (3) comprises a rolling groove (301) and a lubrication groove (302), the rolling groove (301) is provided on the inner wall of the roller (3), and the lubrication groove (302) is provided on both sides of the rolling groove (301); The rolling groove (301) is semicircular and is used in conjunction with the ball (6); An opening is formed above the rolling cavity (7), and the diameter of the opening is smaller than the diameter of the ball (6); One end of the ball (6) extends out of the outer wall (201) of the sleeve, and an opening is formed at the upper end of the cavity (11); The depth of the lubrication groove (302) is greater than the depth of the rolling groove (301). 2. A chain assembly that uses centrifugal force to achieve automatic lubrication and adjustment according to claim 1, characterized in that the spring (10) is always in an upwardly stretched state. 3. A chain assembly that uses centrifugal force to achieve automatic lubrication and adjustment according to claim 1, characterized in that: the expansion block (12) is a mixture of a polymer water-absorbing material and rubber. 4. A chain assembly that uses centrifugal force to achieve automatic lubrication and adjustment according to claim 1, characterized in that the height of the sealing plug (15) is two-thirds of the diameter of the oil guide hole (9), and the sealing plug (15) blocks the oil guide port (14) and separates the oil guide port (14) from the oil guide hole (9).