Automatic adjusting mechanism for track gap

Abstract

The utility model relates to the technical field of sliding mechanisms, in particular to an automatic adjusting mechanism for a track gap. Comprising a sliding rail and a sliding block, a through groove is formed in the sliding block, the sliding rail is located in the through groove in the sliding block, a concave cavity is formed in one side of the sliding groove, the concave cavity is communicated with an oil inlet pipe arranged on one side of the sliding block, a plurality of static pressure plates are arranged in the concave cavity, and grooves are formed in the middles of the two sides of each static pressure plate. Through holes penetrating through the two sides of the static pressure plates are further formed in the portions, provided with the grooves, of the static pressure plates, the value obtained by subtracting the total thickness of all the static pressure plates from the distance between the side, close to the cavity, of the sliding rail and the side face, parallel to the sliding rail, of the cavity ranges from 0.03 * (N + 1) mm to 0.04 * (N + 1) mm, and the distance between the edges of the static pressure plates and the side wall of the cavity ranges from 0.03 mm to 0.04 mm. The gap between the sliding block and the sliding rail can be automatically adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding mechanisms, in particular to an automatic track gap adjustment mechanism. Background Art

[0002] The combination of a slider and a slide rail is a commonly used sliding structure in machinery. In the prior art, a through slot is provided on the slider, the slide rail is located in the through slot, and a strip is provided on one side of the through slot on the slider. The gap between the strip and the slide rail can be adjusted by adjusting the position of the strip. Since the positions of the strip and the slider are fixed after the adjustment, the gap between the slider and the slide rail is adjusted. The present application provides a different solution to adjust the gap between the slider and the slide rail. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a track gap automatic adjustment mechanism in view of the above-mentioned technical deficiencies.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a track gap automatic adjustment mechanism, including a slide rail and a slider, the slider is provided with a through groove, the slide rail is located in the through groove on the slider, a concave cavity is provided on one side of the through groove, the concave cavity is connected with an oil inlet pipe arranged on one side of the slider, a plurality of static pressure plates are provided in the concave cavity, a groove is provided in the middle of both sides of the static pressure plate, the part where the static pressure plate is provided with the groove is also provided with a through hole running through both sides thereof, the distance from the side of the slide rail close to the concave cavity to the side surface of the concave cavity parallel to it minus the total thickness of all static pressure plates is between 0.03*(N+1) mm and 0.04*(N+1) mm, and the distance between the edge of the static pressure plate and the side wall of the concave cavity is 0.03 mm to 0.04 mm.

[0005] To further optimize the technical solution, the cavity is in the shape of a rectangular parallelepiped.

[0006] To further optimize the technical solution, the static pressure plate is overall in the shape of a rectangular parallelepiped.

[0007] Compared with the prior art, the utility model has the following advantages: a concave cavity is provided on one side of the through groove on the sliding block, a plurality of static pressure plates are provided in the concave cavity, grooves are provided on both sides of the middle of the static pressure plate, and a through hole is also provided on the static pressure plate, and oil can be supplied to the concave cavity through an oil inlet pipe connected to the concave cavity, so that the slide rail is pressed by the static pressure plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The figure is a structural schematic diagram of a track gap automatic adjustment mechanism.

[0009] Figure 2 The figure is a schematic diagram of the lateral structure of a track gap automatic adjustment mechanism.

[0010] In the figure: 1, slide rail; 2, slider; 21, concave cavity; 3, static pressure plate; 31, oil cavity; 4, oil inlet pipe. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0012] Specific implementation method: Combination Figure 1-2 As shown, a track gap automatic adjustment mechanism includes a slide rail 1 and a slider 2, the slider 2 is provided with a through groove, the slide rail 1 is located in the through groove on the slider 2, a concave cavity 21 is provided on one side of the through groove, the concave cavity 21 is communicated with an oil inlet pipe 4 provided on one side of the slider 2, and the oil inlet pipe 4 is connected to a hydraulic station through a pipeline when in use, a plurality of static pressure plates 3 are provided in the concave cavity 21, a groove is provided in the middle of both sides of the static pressure plate 3, and a through hole penetrating both sides of the static pressure plate 3 is also provided at the part where the groove is provided, the groove and the through hole form an oil chamber 31, and the hydraulic oil can pass through the through hole into between each layer of the static pressure plates 3, and the side of the slide rail 1 close to the concave cavity 21 to the side of the concave cavity 21 parallel thereto ( Figure 1 The value of the distance from the lower side of the cavity 21 to the static pressure plate 3 minus the total thickness of all static pressure plates 3 is between 0.03*(N+1) mm and 0.04*(N+1) mm, where N is the number of static pressure plates 3, and the distance between the edge of the static pressure plate 3 and the side wall of the cavity 21 is 0.03 mm to 0.04 mm. During use, the hydraulic oil enters the oil chamber 31 and enters between the adjacent static pressure plates 3 and between the static pressure plates 3 and the side walls of the concave cavity 21. An oil film with a thickness of 0.03 mm to 0.04 mm is formed around the adjacent static pressure plates 3. An oil film with a thickness of 0.03 mm to 0.04 mm is also formed between the edge of the static pressure plate 3 and the side wall of the concave cavity 21. The hydraulic oil is unloaded through this oil film (the oil film is a very thin oil channel, and it takes a lot of effort for the oil to flow out from there, thus generating pressure, which plays an adjusting role and can adjust the gap between each static pressure plate 3 to the same value). The hydraulic station supplies oil to the oil chamber 31 through the oil inlet pipe 4 to maintain the pressure and oil film thickness of the oil chamber 31. During assembly, there is no oil film, the static pressure plates 3 can be stuck together, and there is a large gap between the side of the slide rail 1 and the static pressure plates 3 (the more static pressure plates 3 there are, the larger the gap is), and the slide rail 1 can be easily placed in the through groove of the slider 2. After the assembly is completed, turn on the hydraulic station, and an oil film is generated between the static pressure plates 3 to press the slide rail 1, which is equivalent to the gap between the slider 2 and the slide rail 1 being automatically adjusted (actually it is 0.03 mm to 0.04 mm, and there is also an oil film in the gap).

[0013] Furthermore, the cavity 21 is in the shape of a rectangular parallelepiped, and can achieve the largest possible length and width when the size of the slider 2 is constant. Correspondingly, the static pressure plate 3 is also in the shape of a rectangular parallelepiped as a whole, and the contact size and contact area with the slide rail 1 are larger, more stable, and the slider 2 is not easy to shake.

[0014] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A track gap automatic adjustment mechanism, comprising a slide rail (1) and a slider (2), wherein the slider (2) is provided with a through slot, and the slide rail (1) is located in the through slot on the slider (2), characterized in that: A concave cavity (21) is provided on one side of the through groove, and the concave cavity (21) is communicated with an oil inlet pipe (4) provided on one side of the slide block (2). A plurality of static pressure plates (3) are provided in the concave cavity (21), and grooves are provided in the middle of both sides of the static pressure plates (3). The portion of the static pressure plates (3) provided with the grooves is also provided with through holes penetrating both sides thereof. The distance from the side of the slide rail (1) close to the concave cavity (21) to the side of the concave cavity (21) parallel thereto minus the total thickness of all static pressure plates (3) is between 0.03*(N+1) mm and 0.04*(N+1) mm, wherein N is the number of static pressure plates (3), and the distance between the edge of the static pressure plate (3) and the side wall of the concave cavity (21) is between 0.03 mm and 0.04 mm.

2. The track gap automatic adjustment mechanism according to claim 1, characterized in that: The concave cavity (21) is in the shape of a rectangular parallelepiped.

3. The automatic track gap adjustment mechanism according to claim 2, characterized in that: The static pressure plate (3) is in the shape of a rectangular parallelepiped as a whole.

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