High-stability linear guide rail ball sliding block

Abstract

The utility model belongs to the technical field of linear sliding rails, and particularly relates to a high-stability linear guide rail ball sliding block which comprises a bearing sliding block and a ball arranged on the inner wall of the bearing sliding block, runway type ball double-sliding sealers are arranged on the two sides of the bearing sliding block, each runway type ball double-sliding sealer comprises an internal area and an external area, and the internal area and the external area are arranged on the bearing sliding block. The balls are contained in the runway type ball double-sliding sealer through a rotary fixator, and the balls in the built-in area make contact with a sliding rail. A runway type ball double-sliding sealer is adopted, a rotary fixator serves as a positioner of balls, when the balls expand, the rotary fixator is driven to rotate to replace the balls by means of the friction force relation between the balls and the fixator, the heated balls are located on the outer side, a high-speed sliding block and fins are combined for cooling, and along with adding of wind power cooling, the temperature of the high-speed sliding block is lowered. The heat dissipation burden of the lubricating oil is reduced, the problem of rotation resistance caused by thermal expansion is solved, and the use amount of the lubricating oil is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of linear guide rail technology, specifically relating to a high-stability linear guide rail ball slider. Background Technology

[0002] The temperature of the high-speed slider will rise during sliding with the guide rail. Due to thermal expansion and contraction, the ball is prone to volume increase. After the volume increases, the assembly gap narrows, the sliding resistance of the ball increases, and the rolling is not smooth.

[0003] The most common method currently is to use lubricating oil, which can reduce friction and accelerate heat dissipation to some extent. However, lubricating oil is a consumable. Relying solely on lubricating oil as a lubrication and heat dissipation medium leads to increased lubricating oil consumption, indirectly increasing operating costs. Utility Model Content

[0004] This utility model provides a high-stability linear guide ball block, which adopts a racetrack-type ball double-slide closure and a rotating retainer as the ball positioner. When the ball expands, the friction between the ball and the retainer drives the rotating retainer to rotate and replace the ball. The heated ball is located on the outside and is cooled by the combination of the high-speed slider and fins. With the addition of wind cooling, the burden of lubricating oil heat dissipation is reduced, the problem of rotational resistance caused by thermal expansion is solved, and the amount of lubricating oil used is reduced.

[0005] This utility model provides the following technical solution: it includes a bearing slider and balls disposed on the inner wall of the bearing slider. Both sides of the bearing slider are provided with racetrack-type ball double slide closures. The racetrack-type ball double slide closure includes an inner area and an outer area. The balls are housed inside the racetrack-type ball double slide closure by a rotating retainer. The balls in the inner area are in contact with the slide rail.

[0006] The rotating retainer is slidably connected to the racetrack-type ball double-slide closure. The rotating retainer includes a flexible connecting belt, a C-shaped retainer, and a spherical clamping plate. The spherical clamping plate is fixedly connected to both ends of the C-shaped retainer and plays a positioning role for the balls. The flexible connecting belt connects multiple C-shaped retainers to form a closed-loop belt structure for the balls.

[0007] The spherical plate, on the side away from the ball, is slidably connected to the inner wall of the racetrack-type ball double-sliding closure, and the curvature of the inner wall of the racetrack-type ball double-sliding closure matches the curvature of the side of the spherical plate away from the ball.

[0008] Among them, there are two racetrack-type ball bearing double sliding seals on the same side, the two racetrack-type ball bearing double sliding seals are vertically distributed, and heat dissipation fins are fixedly connected between the two vertically adjacent external areas.

[0009] The heat dissipation fins include horizontally equidistant vertical fins.

[0010] Among them, a number of vertically equidistant horizontal fins are fixedly connected to the sidewall of the vertical fin near the built-in area.

[0011] In this configuration, two adjacent balls do not come into contact with each other.

[0012] Among them, the turning part inside the cavity of the racetrack-type ball double sliding sealer can be equipped with rollers to guide the balls and the rotating retainer, or the side wall of the racetrack-type ball double sliding sealer can be equipped with a sliding groove that cooperates with the flexible connecting belt.

[0013] The external area can be equipped with a lubricating oil replenishment mechanism, and the inner wall of the racetrack-type double-slide ball seal can be filled with lubricating oil channels. Please refer to the figure. Adding lubricating oil to the racetrack-type double-slide ball seal will not affect the balls, and the bottom of the racetrack-type double-slide ball seal has an arc-shaped area to prevent lubricating oil leakage.

[0014] The beneficial effects of this utility model are as follows: a racetrack-type ball double-slide closure is adopted, with a rotating retainer as the ball positioner. When the ball expands, the friction between the ball and the retainer is used to drive the rotating retainer to rotate and replace the ball. The heated ball is located on the outside and is cooled by the combination of high-speed slider and fins. With the addition of wind cooling, the burden of lubricating oil heat dissipation is reduced, the problem of rotational resistance caused by thermal expansion is solved, and the amount of lubricating oil used is reduced.

[0015] The high-speed sliding bearing slider generates airflow during its movement, which passes through the vertical and horizontal fins to cool the external area, thereby accelerating the cooling rate of the balls within the external area. This cleverly utilizes the characteristic of rapid heating at high speed, employing the airflow generated by this high-speed characteristic to achieve cooling.

[0016] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is a front view schematic diagram of the present invention;

[0019] Figure 3 This is a three-dimensional schematic diagram of the racetrack-type ball bearing double-slide sealer after disassembly in this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the combination of ball bearings and rotating retainer in this utility model;

[0021] Figure 5 This is a cross-sectional schematic diagram of the slider in this utility model;

[0022] In the diagram: 100, built-in area; 200, external area; 1, load-bearing slider; 2, racetrack-type ball bearing double-slide sealer; 3, heat dissipation fins; 31, vertical fins; 32, horizontal fins; 4, ball bearings; 5, rotating retainer; 51, flexible connecting strip; 52, C-shaped retainer; 53, spherical clamping plate. Detailed Implementation

[0023] Please see Figures 1-5 The present invention provides the following technical solution: including a bearing slider 1 and a ball bearing 4 disposed on the inner wall of the bearing slider 1. Both sides of the bearing slider 1 are provided with a racetrack-type ball bearing double slide closure 2. The racetrack-type ball bearing double slide closure 2 includes an inner area 100 and an outer area 200. The ball bearing 4 is housed inside the racetrack-type ball bearing double slide closure 2 by a rotating retainer 5. The ball bearing 4 in the inner area 100 is in contact with the slide rail, and two adjacent balls bearing 4 are not in contact with each other.

[0024] The rotating retainer 5 is slidably connected to the racetrack-type ball double-slide closure 2. The rotating retainer 5 includes a flexible connecting belt 51, a C-shaped retainer 52, and a spherical clamping plate 53. The spherical clamping plate 53 is fixedly connected to both ends of the C-shaped retainer 52 and plays a positioning role for the balls 4. The flexible connecting belt 51 connects multiple C-shaped retainers 52 to make the balls 4 form a closed-loop belt structure.

[0025] In this implementation scheme: the racetrack-shaped double-slide ball bearing enclosure 2 is racetrack-shaped. The balls 4 rotate inside the racetrack-shaped double-slide ball bearing enclosure 2 via a rotating retainer 5, and the balls 4 can rotate independently of the racetrack-shaped double-slide ball bearing enclosure 2. The C-shaped retainer 52 connects to the spherical clamping plates 53. The two spherical clamping plates 53 symmetrically engage and surround the balls 4, and the balls 4 can only rotate independently of the spherical clamping plates 53. Adjacent balls 4 do not contact each other, avoiding mutual temperature influence and frictional heating between the balls 4.

[0026] The flexible connecting belt 51 connects the C-shaped retainer 52 into a belt structure. When the ball 4 expands due to temperature rise, the assembly gap between the ball 4 and the spherical clamping plate 53 decreases, and the rotational resistance of the ball 4 increases. When the sliding resistance between the ball 4 and the spherical clamping plate 53 is greater than the sliding resistance between the spherical clamping plate 53 and the racetrack-type ball double-slide sealer 2, the closed-loop belt structure and the racetrack-type ball double-slide sealer 2 move relative to each other. At this time, the ball 4, which has moved to the outer area 200 at room temperature or low temperature, enters the inner area 100 and contacts the slide rail. The heated ball 4 remains in the outer area 200 to cool down and wait for secondary contact.

[0027] If the ball 4 expands, the frictional resistance between the ball 4 and the spherical plate 53 increases, and the ball 4 continues to rotate, increasing the rate of heating. The high temperature environment will accelerate the evaporation and oxidation of the lubricating oil, making the lubricating oil viscous or even causing sludge.

[0028] This method can automatically switch ball bearings 4 at low temperatures, preventing ball bearings 4 from continuing to heat up. At the same time, the heated ball bearings 4 can be cooled down inside the racetrack-type ball bearing double-slide sealer 2.

[0029] The side of the spherical plate 53 away from the ball 4 is slidably connected to the inner wall of the racetrack-type ball double sliding sealer 2, and the curvature of the inner wall of the racetrack-type ball double sliding sealer 2 matches the curvature of the side of the spherical plate 53 away from the ball 4.

[0030] Please see Figure 5 After the racetrack-type double-slide ball bearing closure 2 contacts the spherical clamping plate 53, the racetrack-type double-slide ball bearing closure 2 can limit the movement of the spherical clamping plate 53, ensuring that the relative distance between the two spherical clamping plates 53 does not change, thus improving the stability of the spherical clamping plate 53 in positioning the ball bearing 4. Furthermore, the racetrack-type double-slide ball bearing closure 2 can limit the sliding of the spherical clamping plate 53 and guide the spherical clamping plate 53 along the trajectory of the racetrack-type double-slide ball bearing closure 2.

[0031] There are two racetrack-type ball bearing double sliding seals 2 on the same side. The two racetrack-type ball bearing double sliding seals 2 are vertically distributed, and heat dissipation fins 3 are fixedly connected between the two vertically adjacent external areas 200.

[0032] Since many sliders use a bilinear ball bearing design, placing heat dissipation fins 3 between two adjacent external areas 200 can increase the stability of the heat dissipation fins 3.

[0033] The heat dissipation fins 3 include horizontally equidistant vertical fins 31, and several horizontally equidistant fins 32 are fixedly connected to the sidewall of the vertical fins 31 near the internal area 100.

[0034] The high-speed sliding bearing slider 1 generates wind during its movement, which passes through the vertical fins 31 and the horizontal fins 32 to cool the external area 200, thereby accelerating the cooling speed of the ball bearings 4 inside the external area 200. It cleverly utilizes the characteristics of high-speed heating and fast cooling, and uses the wind generated by the high-speed characteristics to achieve cooling.

[0035] Additional explanation: In this technical solution, the turning part inside the cavity of the racetrack-type ball double sliding sealer 2 can be equipped with rollers to guide the balls 4 and the rotating fixture 5, or the side wall of the racetrack-type ball double sliding sealer 2 can be equipped with a sliding groove that cooperates with the flexible connecting belt 51.

[0036] Secondly, a lubricating oil replenishment mechanism can be installed within the external area 200, and the inner wall of the racetrack-type ball double-slide seal 2 can be filled with lubricating oil flow channels. Please refer to [link / reference]. Figure 5 Adding lubricating oil to the racetrack-type double-slide sealer 2 will not affect the balls, and the bottom of the racetrack-type double-slide sealer 2 has an arc-shaped area to prevent lubricating oil leakage.

Claims

1. A high-stability linear guide ball block, comprising a support block (1) and balls (4) disposed on the inner wall of the support block (1), characterized in that: Both sides of the bearing slider (1) are provided with racetrack-type ball double slide closures (2). The racetrack-type ball double slide closure (2) includes an inner area (100) and an outer area (200). The ball (4) is housed inside the racetrack-type ball double slide closure (2) by a rotating retainer (5). The ball (4) in the inner area (100) is in contact with the slide rail. The rotating retainer (5) is slidably connected to the racetrack-type ball double-slide closure (2). The rotating retainer (5) includes a flexible connecting belt (51), a C-shaped retainer (52), and a spherical clamping plate (53). The spherical clamping plate (53) is fixedly connected to both ends of the C-shaped retainer (52). The spherical clamping plate (53) plays a positioning role for the ball (4). The flexible connecting belt (51) connects multiple C-shaped retainers (52) to form a closed-loop belt structure for the ball (4).

2. The high-stability linear guide ball slider according to claim 1, characterized in that: The side of the spherical plate (53) away from the ball (4) is slidably connected to the inner wall of the racetrack-type ball double sliding sealer (2), and the curvature of the inner wall of the racetrack-type ball double sliding sealer (2) matches the curvature of the side of the spherical plate (53) away from the ball (4).

3. The high-stability linear guide ball slider according to claim 1, characterized in that: There are two racetrack-type ball bearing double sliding seals (2) on the same side. The two racetrack-type ball bearing double sliding seals (2) are vertically distributed, and heat dissipation fins (3) are fixedly connected between the two vertically adjacent external areas (200).

4. A high-stability linear guide ball block according to claim 3, characterized in that: The heat dissipation fins (3) include horizontally equidistant vertical fins (31).

5. A high-stability linear guide ball block according to claim 4, characterized in that: A number of vertically equidistant horizontal fins (32) are fixedly connected to the sidewall of the vertical fin (31) near the built-in area (100).

6. A high-stability linear guide ball block according to claim 1, characterized in that: The two adjacent balls (4) do not contact each other.

Images