Self-lubricating ball guide rail

Abstract

The utility model discloses a self-lubricating ball guide rail which comprises a guide rail body and a ball sliding table arranged on the guide rail body in a sliding mode, and an oil injection cavity is formed in the ball sliding table. The oil injection table comprises a table body arranged on the ball sliding table and an oil injection channel formed in the table body; the oil injection mechanism comprises a shell arranged on the table body and communicated with the oil injection channel and a rolling ball with a shaft, and the rolling ball with the shaft is rotatably arranged in the shell; the linkage assembly is arranged on the oil injection mechanism, and the linkage assembly is used for driving the output end of the oil injection pipe joint to release the closed state when the rolling ball with the shaft rotates; and the driving assembly is used for driving the rolling ball with the shaft to rotate when the rolling ball sliding table slides on the guide rail body. According to the ball guide rail, the balls can be continuously self-lubricated when the ball guide rail is used, oil cannot be discharged when the ball guide rail is not used, and therefore actual use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of guide rail devices, in particular to a self-lubricating ball guide rail. Background Art

[0002] A ball guide is a high-precision, high-rigidity mechanical guide component. It is generally composed of a slider, a guide rail, and balls. When in use, it can reduce sliding friction through the balls and is widely used in industrial equipment and precision instruments. Ball guides generally have a chamber for containing lubricating oil, and the lubricating oil flows along the chamber to the balls, thereby further reducing the friction of the balls. However, nowadays, staff are generally required to add lubricating oil to the ball guide in a quantitative manner. As the lubricating oil in the chamber gradually decreases, the friction of the balls will gradually increase, which will cause the lubricating oil film to disappear and the balls to wear. In addition, the performance of the ball guide will also deteriorate due to insufficient lubrication. Therefore, how to design a ball guide that can automatically and continuously lubricate the balls has become a problem that people in this field need to solve. Utility Model Content

[0003] The purpose of the present invention is to address the above-mentioned shortcomings and provide a self-lubricating ball guide rail that can automatically and continuously lubricate the balls.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a self-lubricating ball guide rail, comprising:

[0005] A guide rail body and a ball slide slidably arranged on the guide rail body, wherein an oil injection cavity is provided in the ball slide;

[0006] An oil filling platform comprises a platform body provided on the ball slide and an oil filling channel provided in the platform body, wherein one end of the oil filling channel is connected to the oil filling cavity;

[0007] An oil injection mechanism, comprising a housing disposed on the platform and connected to the oil injection channel, and a shafted ball rotatably disposed in the housing. When the oil injection mechanism is activated, lubricating oil is injected into the oil injection channel. The housing is provided with an oil injection pipe joint, the bottom of which contacts the shafted ball to seal the output end thereof.

[0008] A linkage assembly is provided on the oil filling mechanism, and is used to drive the output end of the oil filling pipe joint to release the closed state when the shaft ball rotates;

[0009] The driving assembly is used for driving the shaft-bearing ball to rotate when the ball slide slides on the guide rail body.

[0010] Furthermore, the oil injection channel has a vertical section that is vertical and connected to the top wall of the platform, and an inclined section that is inclined and connected to the side wall of the platform. The vertical section and the inclined section are connected to each other, and the oil injection chamber is connected to the lower end of the inclined section.

[0011] Furthermore, the driving assembly includes a bevel gear set and a linkage rod rotatable and vertically arranged on the platform body, and a transmission assembly is arranged at the bottom of the linkage rod, and the transmission assembly consists of two transmission wheels, a transmission belt arranged on the two transmission wheels and coordinated with the transmission belts, and a linkage wheel, one of the transmission wheels is arranged at the bottom of the linkage rod, and the other transmission wheel is arranged coaxially with the other transmission wheel, and the linkage wheel abuts against the outer wall of the guide rail body, and can drive the linkage wheel to rotate when the ball slide moves; the bevel gear set consists of two meshing bevel gears, one of the bevel gears is arranged at the top of the linkage rod, and the other bevel gear is arranged on the shaft with the shaft ball near one end of the linkage rod.

[0012] Furthermore, the oil filling mechanism also includes a telescopic rod with a contraction spring, the oil filling pipe joint is arranged at the moving end of the telescopic rod, a connecting rod is transversely arranged on the side of the oil filling pipe joint close to the linkage assembly, and a driven rod with a diameter larger than the connecting rod is arranged at one end of the connecting rod away from the oil filling pipe joint, both ends of the driven rod are rounded, a scraper is provided on the inner bottom wall of the shell, the scraper contacts the ball in the shaft ball and is used to scrape the lubricating oil on the shaft ball and make it fall into the oil filling channel, the shaft ball consists of a ball and a shaft body arranged at the center of the ball;

[0013] The rotation of the shaft ball is also used to drive the linkage assembly to run, and make the linkage assembly resist the driven rod to run upward.

[0014] The top of the sliding panel also is provided with an interlocking structure, and the interlocking structure is connected with the shaft to form a round shank, and the interlocking structure is connected with the shaft to form a round shank.

[0015] Furthermore, the cam assembly includes a cam body that is slidable up and down and is arranged on a mounting platform. A lead screw is rotatably arranged on the mounting platform, and the lead screw is threadedly engaged with the cam body.

[0016] The beneficial effects of the present invention are as follows:

[0017] The oil pump of the present invention is arranged on the oil filling pipe joint, and the oil filling pipe joint of the oil filling pipe joint is connected with the oil filling container of the external lubricating oil container. When the ball slide slides on the guide rail body, the driving component runs synchronously and drives the shaft ball to rotate. During this process, the linkage component starts when the shaft ball rotates, and drives the output end of the oil filling pipe joint to release the closed state, and the lubricating oil flows out from the oil filling pipe joint to the shaft ball, and flows to the ball through the oil filling channel and the oil filling cavity in turn. When the ball slide is stationary, the output end of the oil filling pipe joint is always in a closed state, which can prevent the lubricating oil from flowing out for no reason. Such a design can enable the ball guide rail to continuously self-lubricate the ball when in use, and no oil is discharged when not in use, thereby facilitating actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the utility model;

[0019] Figure 2 This is a structural cross-sectional view of the oil filling platform and the oil filling mechanism in the utility model;

[0020] Figure 3 It is a sectional side view of the oil filling mechanism of the utility model;

[0021] Figure 4 For this utility model Figure 2 A partial view of A is shown.

[0022] In the picture:

[0023] 1. Guide rail body; 2. Ball slide; 3. Oiling platform; 31. Platform body; 32. Oiling channel; 33. Linkage rod; 34. Transmission assembly; 35. Bevel gear set; 4. Oiling mechanism; 41. Housing; 42. Telescopic rod; 43. Oiling pipe joint; 44. Shafted ball; 45. Scraper; 44. Shafted ball; 45. Scraper; 46. Connecting rod; 47. Follower rod; 5. Linkage assembly; 51. Mounting platform; 52. Arc block; 53. Interference ball rod; 54. Reset spring; 55. Anti-slip rod; 56. Guide groove; 57. Screw; 58. Cam body. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-4 The utility model discloses a self-lubricating ball guide rail, comprising a guide rail body 1, an oil filling platform 3 and a ball slide 2 slidably arranged on the guide rail body 1. An oil filling cavity is opened in the ball slide 2. When in use, when there is lubricating oil in the oil filling cavity, the lubricating oil will flow along the opening direction of the cavity to each ball of the ball slide 2, so that a lubricating oil film is formed on the balls, which is used to reduce the friction during the operation of the ball guide rail.

[0026] It should be noted that the sliding adjustment of the ball slide 2 on the guide rail body 1 requires the cooperation of corresponding power equipment, which can be a motor. Since it belongs to the well-known technology in the field of power equipment, the specific structural composition and working principle will not be described in detail in this article.

[0027] In one embodiment, the oiling platform 3 includes a platform body 31 installed on the ball slide 2 and an oiling channel 32 opened in the platform body 31, one end of the oiling channel 32 is connected to the oiling chamber, and an oiling mechanism 4 is provided on the oiling platform 3, the oiling mechanism 4 includes a shell 41 installed on the platform body 31 and connected to the oiling channel 32, and a shaft ball 44 rotatably installed in the shell 41, the oiling mechanism 4 injects lubricating oil into the oiling channel 32 when started, and an oiling pipe joint 43 is provided on the shell 41 which can be raised and lowered and the bottom of which contacts the shaft ball 44 to close its output end, and a linkage component 5 is provided on the oiling mechanism 4, which is used to drive the output end of the oiling pipe joint 43 to release the closed state when the shaft ball 44 rotates. A driving component is also provided on the oiling platform 3, and the driving component is used to drive the shaft ball 44 to rotate when the ball slide 2 slides on the guide rail body 1.

[0028] During the specific implementation, the staff connects the oil filling pipe joint 43 with the external lubricating oil container. When the ball slide 2 slides on the guide rail body 1, the driving component runs synchronously and drives the shaft ball 44 to rotate. During this process, the linkage component 5 will start when the shaft ball 44 rotates, and drive the output end of the oil filling pipe joint 43 to release the closed state. The lubricating oil flows out from the oil filling pipe joint 43 to the shaft ball 44, and flows to the ball through the oil filling channel 32 and the oil filling chamber in turn. When the ball slide 2 is stationary, the output end of the oil filling pipe joint 43 is always in a closed state, which can prevent the lubricating oil from flowing out for no reason. This design enables the ball guide rail to continuously self-lubricate the balls when in use, and no oil is discharged when not in use, thereby facilitating actual use.

[0029] In one embodiment, the oil injection channel 32 has a vertical section that is vertical and connected to the top wall of the platform 31, and an inclined section that is inclined and connected to the side wall of the platform 31. The vertical section and the inclined section are connected to each other, and the oil injection chamber is connected to the lower end of the inclined section.

[0030] With this design, when the lubricating oil is transported to the oil filling channel 32 through the oil filling mechanism 4, it will pass through the vertical section and the inclined section and flow into the oil filling chamber on the ball slide 2. The vertical and inclined design enables the lubricating oil to enter the oil filling chamber faster without accumulating inside the oil filling channel 32, thereby improving the transmission efficiency of the lubricating oil.

[0031] In one embodiment, the driving assembly includes a bevel gear set 35 and a linkage rod 33 that is rotatable and vertically arranged on the platform 31. A transmission assembly 34 is provided at the bottom of the linkage rod 33. The transmission assembly 34 consists of two transmission wheels, a transmission belt arranged on the two transmission wheels and coordinated with them, and a linkage wheel (not shown in the figure). One of the transmission wheels is installed at the bottom of the linkage rod 33, and the other transmission wheel is installed on the ball slide 2. The linkage wheel is installed coaxially with the other transmission wheel. The linkage wheel abuts against the outer wall of the guide rail body 1 and can drive the linkage wheel to rotate when the ball slide 2 moves; the bevel gear set 35 consists of two meshing bevel gears, one of which is installed at the top of the linkage rod 33, and the other bevel gear is installed on the shaft with the shaft ball 44 close to one end of the linkage rod 33.

[0032] In the specific implementation, when the ball slide 2 slides on the guide rail body 1, the linkage wheel in contact with the outer wall of the guide rail body 1 rotates accordingly, thereby driving the transmission component 34 to move. During this process, the linkage rod 33 is driven by the transmission component 34 to rotate, and cooperates with the two bevel gears that mesh with each other, so that the shaft ball 44 rotates synchronously, thereby realizing that the shaft ball 44 will also run synchronously when the ball slide 2 is running.

[0033] In one embodiment, the oil filling mechanism 4 also includes a telescopic rod 42 with a contraction spring, and an oil filling pipe joint 43 is installed at the moving end of the telescopic rod 42. A connecting rod 46 is installed horizontally on the side of the oil filling pipe joint 43 close to the linkage assembly 5. A driven rod 47 with a diameter larger than the connecting rod 46 is installed at the end of the connecting rod 46 away from the oil filling pipe joint 43. Both ends of the driven rod 47 are rounded. A scraper 45 is installed on the inner bottom wall of the shell 41. The scraper 45 contacts the ball in the shaft ball 44 and is used to scrape off the lubricating oil on the shaft ball 44. The shaft ball 44 consists of a sphere and a shaft installed at the center of the sphere.

[0034] In specific implementation, when the shaft ball 44 rotates, it will drive the linkage component 5 to run, and the linkage component 5 will resist the driven rod 47 and make it run upward, and the oil filling pipe joint 43 will rise synchronously, so that the output end of the oil filling pipe joint 43 is separated from the shaft ball 44, and the lubricating oil inside it can flow directly to the outside of the oil filling pipe joint 43, and the lubricating oil flows to the rotating shaft ball 44, and the scraper 45 will scrape the lubricating oil on it and make it fall into the oil filling channel 32.

[0035] In one embodiment, the linkage assembly 5 includes a mounting platform 51 that is sleeved on the shaft body of the shaft ball 44. The mounting platform 51 can slide along the length direction of the shaft body of the shaft ball 44. An arc block 52 is provided on the mounting platform 51. The top of the arc block 52 is in an arc shape. A contact ball rod 53 that abuts and pushes the arc block 52 is installed horizontally on the shell 41. A reset spring 54 whose other end is connected to the shaft body of the shaft ball 44 is installed in the mounting platform 51. A horizontally arranged and strip-shaped guide groove 56 is opened in the mounting platform 51. An anti-slip rod inserted into the guide groove 56 is also installed on the shaft body of the shaft ball 44. 55. The interior of the anti-slip rod 55 is hollow, and a latch 59 is slidably installed on the inner side thereof. The latch 59 has two inclined surfaces, and the two inclined surfaces face the length direction of the guide groove 56. The corresponding guide groove 56 of the mounting platform 51 is provided with a lock groove (not shown in the figure) that cooperates with the guide groove 56. A tension spring that contacts the latch 59 is also installed in the latch 59. A cam assembly is slidably provided on the mounting platform 51. The cam assembly can move toward or away from one side of the driven rod 47. The centrifugal force generated when the shaft ball 44 rotates is greater than the tension of the reset spring 54 and the tension spring. The cam assembly will not contact the connecting rod 46 when it moves.

[0036] When the arc block 52 is pushed by the contact ball 53, the latch 59 will be inserted into the lock groove, so that the mounting platform 51 is temporarily positioned after moving, and the cam assembly on the mounting platform 51 will move synchronously with it. The cam assembly rotates synchronously with the mounting platform 51 and pushes the driven rod 47 to make it rise with the oil filling pipe joint 43. When the oil filling pipe joint 43 rises, it is separated from the shaft ball 44, so that the lubricating oil can be discharged normally. When the cam assembly is completely separated from the driven rod 47, the contraction spring in the telescopic rod 42 will make the oil filling pipe joint 43 drop and reset, and the oil filling pipe joint 43 will move up and down reciprocatingly according to the above steps, thereby ensuring that the lubricating oil will be discharged synchronously during the operation of the ball slide 2 to achieve the self-lubricating effect.

[0037] It should be noted that when the shaft ball 44 is not rotating, the reset spring 54 will push the mounting platform 51 in the opposite direction to move it to the side close to the shaft ball 44 and reset it. At this time, the cam assembly moves synchronously, thereby staggered with the driven rod 47. This design allows the ball slide 2 to be in normal contact with the ball in the shaft ball 44 when it is not running, to prevent the lubricating oil from flowing out at this time, and the pin 59 is also pulled into the anti-slip rod 55 by the tension spring. Moreover, when the shaft ball 44 stops rotating and the arc block 52 just rotates to face upward, since the shaft ball 44 no longer continues to rotate more stably, the arc block 52 will not be resisted by the interference rod 53 and move in a straight line, but will move laterally along the arc surface of the arc block 52, so that the arc block 52 is staggered with the interference rod 53.

[0038] The cam assembly includes a cam body 58 mounted on a mounting platform 51 and slidable up and down. A lead screw 57 is rotatably provided on the mounting platform 51 , and the lead screw 57 is threadedly engaged with the cam body 58 .

[0039] With this design, rotating the screw 57 can drive the cam body 58 to slide up and down, and it will move toward or away from the side of the driven rod 47. When it moves toward the side close to the driven rod 47, the rotation of the cam body 58 will cause the connecting rod 46 and the oil filling pipe joint 43 to rise and the distance between them and the shaft ball 44 will increase, which can adapt to the discharge of lubricating oil with higher viscosity. When the cam body 58 moves toward the side away from the driven rod 47, the rotation of the cam body 58 will cause the connecting rod 46 and the oil filling pipe joint 43 to rise and the distance between them and the shaft ball 44 will decrease, which can adapt to the discharge of lubricating oil with lower viscosity. Since both ends of the driven rod 47 are rounded, the cam body 58 will not get stuck between the connecting rod 46 and the driven rod 47 when moving.

[0040] It should be noted that when the cam body 58 in the cam assembly moves and adjusts, it will not contact the connecting rod 46, so it will not affect the normal operation of the device, and the lifting and lowering adjustment of the cam body 58 will not completely cross the driven rod 47, thereby preventing the cam body 58 from getting stuck on the driven rod 47 when rotating.

[0041] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] In addition, "plurality" means two or more.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-lubricating ball guide rail, characterized by: include, A guide rail body (1) and a ball slide (2) slidably arranged on the guide rail body (1), wherein an oil injection cavity is provided in the ball slide (2); An oil filling platform (3) comprises a platform body (31) arranged on the ball slide (2) and an oil filling channel (32) opened in the platform body (31), wherein one end of the oil filling channel (32) is communicated with the oil filling cavity; An oil injection mechanism (4), comprising a housing (41) disposed on the platform (31) and communicating with the oil injection channel (32), and a shaft-bearing ball (44) rotatably disposed in the housing (41); the oil injection mechanism (4) injects lubricating oil into the oil injection channel (32) when activated; an oil injection pipe joint (43) is provided on the housing (41) in a liftable manner, the bottom of which contacts the shaft-bearing ball (44) to seal the output end thereof; A linkage assembly (5) is provided on the oil filling mechanism (4), and is used to drive the output end of the oil filling pipe joint (43) to release the closed state when the shaft-bearing ball (44) rotates; A driving assembly is used for driving the shaft-mounted rolling ball (44) to rotate when the ball slide (2) slides on the guide rail body (1).

2. The self-lubricating ball guide rail according to claim 1, characterized in that: The oil injection channel (32) has a vertical section that is vertical and connected to the top wall of the platform (31), and an inclined section that is inclined and connected to the side wall of the platform (31). The vertical section and the inclined section are connected to each other, and the oil injection chamber is connected to the lower end of the inclined section.

3. The self-lubricating ball guide rail according to claim 1, characterized in that: The driving assembly comprises a bevel gear set (35) and a linkage rod (33) rotatably and vertically arranged on the platform (31); a transmission assembly (34) is arranged at the bottom of the linkage rod (33); the transmission assembly (34) consists of two transmission wheels, a transmission belt arranged on the two transmission wheels and cooperating with the transmission belts, and a linkage wheel; one of the transmission wheels is arranged at the bottom of the linkage rod (33), and the other transmission wheel is arranged on the ball slide (2); the linkage wheel and the other transmission wheel are arranged coaxially, the linkage wheel abuts against the outer wall of the guide rail body (1), and can drive the linkage wheel to rotate when the ball slide (2) moves; the bevel gear set (35) consists of two meshing bevel gears, one of the bevel gears is arranged at the top of the linkage rod (33), and the other bevel gear is arranged on the shaft of the belt shaft ball (44) close to one end of the linkage rod (33).

4. The self-lubricating ball guide rail according to claim 1, characterized in that: The oil injection mechanism (4) further comprises a telescopic rod (42) having a contraction tension spring, the oil injection pipe joint (43) being arranged at the moving end of the telescopic rod (42), a connecting rod (46) being arranged transversely on a side of the oil injection pipe joint (43) close to the linkage assembly (5), a driven rod (47) having a diameter larger than that of the connecting rod (46) being arranged at one end of the connecting rod (46) away from the oil injection pipe joint (43), both ends of the driven rod (47) being rounded, a scraper (45) being arranged on the inner bottom wall of the shell (41), the scraper (45) being in contact with the ball in the shaft ball (44) and being used for scraping the lubricating oil on the shaft ball (44) and making it fall into the oil injection channel (32), the shaft ball (44) being composed of a ball and a shaft arranged at the center of the ball; The rotation of the shaft-bearing ball (44) is also used to drive the linkage assembly (5) to run, and to make the linkage assembly (5) contact the driven rod (47) to run upward.

5. The self-lubricating ball guide rail according to claim 4, characterized in that: The linkage assembly (5) includes a mounting platform (51) arranged on the shaft body of the shaft ball (44), the mounting platform (51) can slide along the length direction of the shaft body of the shaft ball (44), an arc block (52) is arranged on the mounting platform (51), the top of the arc block (52) is in the shape of an arc, a contact ball rod (53) is arranged transversely on the shell (41) and is in contact with and pushed by the arc block (52), a reset spring (54) is arranged in the mounting platform (51), the other end of which is connected to the shaft body of the shaft ball (44), a guide groove (56) arranged transversely and in the shape of a strip is opened in the mounting platform (51), and the shaft ball (44) is provided with a guide groove (56) in the shape of a strip. The shaft body is also provided with an anti-slip rod (55) inserted into the guide groove (56). The anti-slip rod (55) is hollow inside, and a latch (59) is slidably provided on the inner side thereof. The latch (59) has two inclined surfaces, and the two inclined surfaces face the length direction of the guide groove (56). The mounting platform (51) is provided with a lock groove that is inserted into the guide groove (56) at the corresponding guide groove (56). A tension spring that contacts the latch (59) is also provided in the latch (59). A cam assembly is slidably provided on the mounting platform (51). The cam assembly can move toward or away from the side of the driven rod (47). The cam assembly will not contact the connecting rod (46) when moving.

6. The self-lubricating ball guide rail according to claim 5, characterized in that: The cam assembly comprises a cam body (58) slidably arranged on a mounting platform (51), a lead screw (57) rotatably arranged on the mounting platform (51), and the lead screw (57) is threadedly engaged with the cam body (58); When the shaft-bearing ball (44) rotates, it drives the linkage assembly (5) to run, and causes the linkage assembly (5) to contact the driven rod (47) to run upward.

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