Six-raceway heavy-load linear guide rail pair

Abstract

The utility model relates to a six-raceway heavy-load linear guide rail pair. The technical problem to be solved by the utility model is to provide a six-raceway heavy-load linear guide rail pair. According to the technical scheme, the sliding block device comprises a guide rail and a sliding block assembly, the sliding block assembly comprises a sliding block body, a ball front reverser, a ball rear reverser and a ball, a rear reverser butt joint opening is formed in the middle of the ball rear reverser, rear reverser limiting grooves are formed in the positions, at the two ends of the rear reverser butt joint opening, of the ball rear reverser, and the ball rear reverser is connected with the ball front reverser. A lubricating buffer groove and a lubricating oil outflow hole are formed in the rear reverser limiting groove, and lubricating oil main flow cavities are formed in the two ends of the ball rear reverser. The utility model has the advantages that the lubricating oil storage cavity is communicated with the rear reverser limiting groove through which the ball rolls, so that the lubricating oil can be timely and stably supplied to the rolling ball, the friction force between the ball and a raceway is obviously reduced, the rigidity and the bearing capacity of a guide rail pair are kept, and the service life of the guide rail pair is prolonged.

Description

Technical Field

[0001] The utility model relates to a six-roller heavy-load linear guide pair. Background Art

[0002] The six-raceway heavy-duty linear guide pair is a mechanical component used in high-load, high-precision motion control systems. It has multiple raceways to ensure that it can maintain stable linear motion when subjected to heavy loads. The existing six-raceway heavy-duty linear guide pair does not have a self-lubricating device for the balls. The balls are in direct contact with the raceways without lubrication, and due to the heavy load, the friction coefficient increases significantly. The rolling of the balls produces a large noise and accelerates the wear of the balls and raceways. In addition, as the wear increases, the rigidity and load-bearing capacity of the guide pair will gradually decrease, shortening the service life of the guide pair. In view of this, the existing six-raceway heavy-duty linear guide pair is improved and optimized. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a six-raceway heavy-load linear guide pair.

[0004] The technical solution adopted by the utility model six-race heavy-duty linear guide pair: includes a guide rail and a slider assembly sliding on the guide rail, the slider assembly includes a slider body, a ball front returner and a ball rear returner respectively arranged at both ends of the slider body, balls in the slider body, and a retaining frame assembly fixed on the slider body and used to prevent the balls from falling, characterized in that a rear returner docking interface corresponding to the guide rail is provided in the middle of the ball rear returner, three rear returner limit grooves for limiting the rolling of the balls are provided at intervals from top to bottom at both ends of the rear returner docking interface, a lubrication buffer groove and a lubrication oil outflow hole communicated with the upper end of the lubrication buffer groove are provided in the rear returner limit groove, lubrication oil main flow cavities longitudinally arranged and communicated with the lubrication oil outflow hole are provided at both ends of the ball rear returner, a lubrication oil storage cavity for placing lubrication oil is provided on the ball rear returner above the lubrication oil main flow cavity, and the bottom of the lubrication oil storage cavity and the lubrication oil main flow cavity are connected through an oil outlet.

[0005] The lubricating oil outflow hole is arranged obliquely, and the height of the end thereof communicating with the rear return device limiting groove is lower than the height of the end thereof communicating with the lubricating oil main flow cavity.

[0006] The main lubricating oil cavity is provided with an oil guide block at the lower part of the lubricating oil main flow cavity communicating with the lubricating oil outflow hole for facilitating the introduction of the lubricating oil.

[0007] An oil discharge port is arranged obliquely at the bottom of the lubricating oil storage cavity.

[0008] The two ends of the ball roller rear return device are provided with rear return device installation recesses for installing and fixing the storage cavity end sealing plate, and the ball roller rear return device is provided with a storage cavity lifting rib for improving the sealing performance at the lubricating oil storage cavity.

[0009] The advantages of the six-roller heavy-duty linear guide pair of the utility model are: the ball rear return device has its own lubricating oil, and the lubricating oil storage chamber is connected with the rear return device limit groove through which the ball rolls, so that the lubricating oil can be provided to the rolling balls in a timely and stable manner, which significantly reduces the friction between the balls and the raceways, thereby reducing wear, making the ball contact smoother, the noise lower, reducing the sticking phenomenon, and controlling the temperature rise of the guide pair at the same time, maintaining the rigidity and load-bearing capacity of the guide pair, and extending the service life of the guide pair. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0011] Figure 1 This is a schematic diagram of the structure of the utility model's six-raceway heavy-duty linear guide pair;

[0012] Figure 2 It is a structural schematic diagram of the slider assembly of the utility model;

[0013] Figure 3 It is a structural schematic diagram of the ball return device of the utility model;

[0014] Figure 4 yes Figure 3 A magnified image of

[0015] Figure 5 It is a cross-sectional view of the ball return device of the utility model. DETAILED DESCRIPTION

[0016] like Figure 1-5As shown, the six-race heavy-duty linear guide pair involved in the utility model comprises a guide rail 1 and a slider assembly 2 sliding on the guide rail 1, the slider assembly 2 comprises a slider body 3, a ball front returner 4 and a ball rear returner 5 respectively arranged at both ends of the slider body 3, balls 6 in the slider body 3, and a retaining frame assembly 7 fixed on the slider body 3 and used to prevent the balls from falling, a rear returner docking interface 10 corresponding to the guide rail 1 is provided in the middle of the ball rear returner 5, three rear returner limit grooves 11 for rolling limit of the balls 6 are provided at intervals from top to bottom at both ends of the rear returner docking interface 10 of the ball rear returner 5, and a lubrication buffer groove 13 and a lubricating oil outflow hole 14 communicated with the upper end of the lubrication buffer groove 13 are provided in the rear returner limit groove 11. , the two ends of the ball rear return device 5 are provided with a longitudinally arranged lubricating oil main flow cavity 15 which is communicated with the lubricating oil outflow hole 14, and the ball rear return device 5 is provided with a lubricating oil storage cavity 16 for placing lubricating oil above the lubricating oil main flow cavity 15, and the bottom of the lubricating oil storage cavity 16 is connected with the lubricating oil main flow cavity 15 through an oil hole 17. The ball rear return device carries lubricating oil, and the lubricating oil storage cavity 16 is communicated with the rear return device limit groove 11 through which the ball 6 rolls, so that the lubricating oil can be provided to the rolling ball 6 in a timely and stable manner, which significantly reduces the friction between the ball and the raceway, thereby reducing wear, making the ball contact smoother, the noise lower, reducing the sticking phenomenon, and controlling the temperature rise of the guide pair at the same time, maintaining the rigidity and bearing capacity of the guide pair, and extending the service life of the guide pair.

[0017] The lubricating oil outflow hole 14 is tilted, and the height of the end thereof communicating with the rear return device limit groove 11 is lower than the height of the end thereof communicating with the lubricating oil main flow cavity 15, so that the lubricating oil flows smoothly, preventing blockage problems, and ensuring that lubrication remains stable and reliable.

[0018] The lubricating oil main cavity 15 is provided with an oil guide block 19 at the lower part of the lubricating oil outlet hole 14 for facilitating the introduction of lubricating oil. During the lubricating oil delivery process, the lubricating oil can enter the lubricating oil outlet hole 14 more easily through the oil guide block 19, thereby ensuring the continuous supply of lubricating oil.

[0019] The bottom of the lubricating oil storage chamber 16 is provided with an oil drain port 20 arranged obliquely, so as to facilitate the subsequent replacement and maintenance of the residual lubricating oil.

[0020] Both ends of the ball roller rear return device 5 are provided with rear return device mounting recesses 21 for mounting and fixing the storage cavity end sealing plate. The ball roller rear return device 5 is provided with a storage cavity raised rib 22 for improving the sealing performance at the lubricating oil storage cavity 16. The storage cavity raised rib 22 can effectively prevent the lubricating oil placed in the lubricating oil storage cavity 16 from leaking out due to the movement of the slider assembly 2.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A six-race heavy-duty linear guide pair, comprising a guide rail (1) and a slider assembly (2) sliding on the guide rail (1), the slider assembly (2) comprising a slider body (3), a ball front return device (4) and a ball rear return device (5) respectively arranged at two ends of the slider body (3), balls (6) in the slider body (3), and a retaining frame assembly (7) fixed to the slider body (3) and used to prevent the balls from falling, characterized in that: A rear return device docking port (10) corresponding to the guide rail (1) is provided in the middle of the ball roller rear return device (5). Three rear return device limit grooves (11) for rolling limit of the ball roller (6) are provided at intervals from top to bottom at both ends of the rear return device docking port (10). A lubrication buffer groove (13) and a lubrication oil outflow hole (14) communicating with the upper end of the lubrication buffer groove (13) are provided in the rear return device limit groove (11). A lubrication oil main flow cavity (15) arranged longitudinally and communicating with the lubrication oil outflow hole (14) is provided at both ends of the ball roller rear return device (5). A lubrication oil storage cavity (16) for placing lubrication oil is provided above the lubrication oil main flow cavity (15). The bottom of the lubrication oil storage cavity (16) and the lubrication oil main flow cavity (15) are communicated with each other via an oil outlet hole (17).

2. The six-raceway heavy-load linear guide pair according to claim 1 is characterized in that: The lubricating oil outflow hole (14) is arranged obliquely, and the height of the end thereof communicating with the rear return device limit groove (11) is lower than the height of the end thereof communicating with the lubricating oil main flow cavity (15).

3. The six-raceway heavy-load linear guide pair according to claim 1 is characterized in that: The lubricating oil main flow cavity (15) is provided with an oil guide block (19) at the lower part of the portion communicating with the lubricating oil outflow hole (14) for facilitating the introduction of lubricating oil.

4. The six-race heavy-duty linear guide pair according to claim 1 is characterized in that: The bottom of the lubricating oil storage cavity (16) is provided with an oil discharge port (20) which is arranged obliquely.

5. The six-race heavy-load linear guide pair according to claim 1 is characterized in that: The two ends of the ball roller rear return device (5) are provided with rear return device mounting recesses (21) for mounting and fixing the storage cavity end sealing plate, and the ball roller rear return device (5) is provided with a storage cavity raising rib (22) for improving the sealing performance at the lubricating oil storage cavity (16).

Images