Quick-mounting ball linear slider with dust cover

Abstract

The utility model discloses a quick -wearing formula ball linear slider with dust cover relates to linear transmission component technical field, including slider body and end cover, be equipped with rotating chamber and transmission chamber in the slider body, be equipped with the positioning chamber in the end cover interior, be equipped with the rotating frame on the slider body, be equipped with two screw rods of opposite screw direction in rotating chamber, and rotating mechanism connection is constituted to rotating frame and screw rod through bevel gear set, the movable frame threaded bushing is limited through the spacing rod on screw rod, and the elasticity mechanism sliding of spring and fixed ring constitutes is equipped with the tow frame on the end cover, and the movable frame is equipped with the perforation cooperation with tow frame pole part on. The utility model discloses through the tow frame of lifting, removes movable frame spacing, and rotates the rotating frame, and screw rod can be driven through gear transmission, makes movable frame separate from the positioning chamber and realizes the quick separation of slider body and end cover, has the convenience of dismounting and the connecting stability, effectively promotes maintenance efficiency and guarantees the operation safety.

Description

Technical Field

[0001] This utility model relates to the field of linear transmission components, and in particular to a quick-release ball linear slider with a dust cover. Background Technology

[0002] As a core component of linear transmission systems, ball linear sliders achieve low-friction, high-precision linear motion through the rolling of balls between the slider body and the guide rail, and are widely used in various precision machinery. In existing technologies, ball linear sliders typically consist of a slider body, end caps, balls, and a cage, as disclosed in patent CN218953832U, "A Ball Linear Slider." This structure, through a rational ball circulation path design, improves the smoothness of motion and service life, providing a fundamental guarantee for precision transmission. During long-term use, to prevent dust and impurities from entering the internal structure and affecting the accuracy of the ball movement, these sliders are usually equipped with dust covers to extend the maintenance cycle of the components.

[0003] However, existing ball linear sliders with dust covers still have significant drawbacks in practical use and maintenance. On one hand, most sliders use bolts or interference fits to fasten the end caps to the slider body. When cleaning, lubrication, or component replacement is required, special tools are needed to disassemble the fixing structure, making the process cumbersome and time-consuming, severely impacting equipment maintenance efficiency. On the other hand, while some quick-release structures simplify disassembly, they lack reliable limit locking mechanisms. During equipment operation, external forces such as vibration can easily cause the end caps to accidentally separate from the slider body, not only rendering the dustproof function ineffective but also potentially causing internal ball bearings to fall out, component damage, and other safety hazards. Therefore, they cannot balance ease of disassembly with connection stability. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quick-release ball linear slider with a dust cover.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A quick-release ball linear slider with a dust cover includes a slider body and an end cap. The slider body has a rotating chamber and a transmission chamber inside, and the end cap has a positioning chamber inside. A rotating frame is rotatably mounted on the slider body, and a screw is rotatably mounted in the rotating chamber. The ends of the rotating frame and the screw both extend into the transmission chamber and are connected by a rotating mechanism. A movable frame is threaded onto the screw through a limiting mechanism. A drag frame extending into the positioning chamber is slidably mounted on the end cap through an elastic mechanism. The movable frame has a through hole.

[0006] Preferably, the rotating mechanism includes a first gear fixedly mounted on the rotating frame, and a second gear meshing with the first gear is fixedly mounted on the screw.

[0007] Preferably, the limiting mechanism includes a limiting rod fixedly installed in the rotating chamber, the limiting rod sliding through the movable frame.

[0008] Preferably, the elastic mechanism includes a fixed ring fixedly installed on the towing frame, and a spring is provided in the positioning chamber, with both ends of the spring connected to the inner wall of the positioning chamber and the outer wall of the fixed ring, respectively.

[0009] Preferably, both the first gear and the second gear are bevel gears, and the specific meshing relationship between the first gear and the second gear is perpendicular meshing.

[0010] Preferably, there are two screws, and the threads of the two screws face opposite directions.

[0011] The beneficial effects of this utility model are: Through the coordinated design of the rotating mechanism and the limiting mechanism, the limiting of the movable frame can be released simply by lifting the dragging frame, and then the movable frame can be driven to move away from the positioning chamber by rotating the rotating frame, thereby realizing the rapid separation of the slider body and the end cover. The whole process does not require any special tools, which greatly simplifies the disassembly and assembly steps, effectively shortens the equipment maintenance time, and improves the convenience of maintenance work.

[0012] The spring in the elastic mechanism provides continuous elastic pressure to the towing frame. When no external force is involved, the rod of the towing frame is always stably inserted into the through hole of the movable frame, forming a reliable limit on the movable frame and preventing it from moving unexpectedly under operating conditions such as equipment vibration. This ensures the stability of the connection between the slider body and the end cover, prevents the dust cover from failing and internal components from being damaged, and improves the safety of equipment operation.

[0013] The rotating mechanism adopts a vertically meshing bevel gear set, combined with two screws with opposite thread directions. This allows the rotational motion of the rotating frame to be synchronously transmitted to the two screws through gear transmission, driving the two movable frames to move closer or further away in sync. This ensures balanced force during the connection or separation of the end cover and the slider body, avoiding component jamming caused by uneven force on one side, and improving the overall structural stability. Attached Figure Description

[0014] Figure 1 A schematic diagram of a quick-release ball linear slider with a dust cover; Figure 2 for Figure 1 A schematic diagram of the structure viewed from below; Figure 3 for Figure 2 A schematic diagram of the vertical section structure; Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A; Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B.

[0015] In the diagram: 1 slider body, 2 end cap, 3 rotating frame, 4 drag frame, 5 rotating chamber, 6 screw, 7 transmission chamber, 8 first gear, 9 second gear, 10 limit rod, 11 movable frame, 12 positioning chamber, 13 fixed ring, 14 spring, 15 through hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-4 A quick-release ball linear slider with a dust cover includes a slider body 1 and an end cap 2. The slider body 1 and the end cap 2 can be referred to the patent title: A ball linear slider (publication (announcement) number: CN218953832U). The specific structure of the slider body 1 and the end cap 2 will not be described in detail in this solution.

[0018] The slider body 1 has a rotating chamber 5 and a transmission chamber 7 inside, and the end cover 2 has a positioning chamber 12 inside. A rotating frame 3 is rotatably mounted on the slider body 1, and a screw 6 is rotatably mounted inside the rotating chamber 5. The ends of the rotating frame 3 and the screw 6 both extend into the transmission chamber 7 and are connected by a rotating mechanism. A movable frame 11 is threaded onto the screw 6 through a limiting mechanism. A drag frame 4 extending into the positioning chamber 12 is slidably mounted on the end cover 2 through an elastic mechanism. The movable frame 11 has a through hole 15.

[0019] The rotating mechanism includes a first gear 8 fixedly mounted on a rotating frame 3, and a second gear 9 fixedly mounted on a screw 6, meshing with the first gear 8. Both the first gear 8 and the second gear 9 are bevel gears, and their meshing relationship is perpendicular. There are two screws 6, and the threads of the two screws 6 face opposite directions.

[0020] Relying on the first gear 8 and the second gear 9 mentioned above, the two screws 6 can be rotated synchronously when the rotating frame 3 rotates. Since the threads are oriented in opposite directions, the two movable frames 11 can move synchronously closer or further away.

[0021] The limiting mechanism includes a limiting rod 10 fixedly installed in the rotating chamber 5, which slides through the movable frame 11. As shown in the figure, the movable frame 11 is L-shaped. The limiting rod 10 can limit the movable frame 11 and prevent it from rotating with the screw 6.

[0022] The elastic mechanism includes a fixed ring 13 fixedly mounted on the towing frame 4, and a spring 14 installed inside the positioning chamber 12. The two ends of the spring 14 are connected to the inner wall of the positioning chamber 12 and the outer wall of the fixed ring 13, respectively. Relying on the elastic potential energy provided by the spring 14, the position of the towing frame 4 is kept stable, ensuring that the towing frame 4 will not move vertically when no external force is involved, and its rod is always kept inside the through hole 15, so the movable frame 11 cannot move.

[0023] Working principle of this utility model: During normal operation of the equipment, the spring 14 in the elastic mechanism is in a naturally extended state. Its elastic force acts on the drag frame 4 through the fixed ring 13, causing the rod of the drag frame 4 to stably pass through and be inserted into the through hole 15 of the movable frame 11, thus axially limiting the movable frame 11. At this time, under the combined action of the radial limiting of the limiting rod 10 and the axial limiting of the drag frame 4, the movable frame 11 cannot move axially along the screw 6, thereby enabling the slider body 1 and the end cover 2 to achieve a stable connection through the cooperation of the movable frame 11 and the positioning chamber 12.

[0024] When maintenance is required on the slider body 1, and it is necessary to separate the slider body 1 from the end cap 2, first pull the drag frame 4 upwards. The drag frame 4 drives the fixing ring 13 to compress the spring 14, causing its rod to completely disengage from the through hole 15 of the movable frame 11, thus releasing the axial limit of the movable frame 11. Then rotate the rotating frame 3 on the slider body 1. The rotating frame 3 drives the first gear 8 fixed on it to rotate. The first gear 8 drives the second gear 9 on the screw 6 to rotate synchronously through a vertical meshing relationship. Since the threads of the two screws 6 are facing opposite directions, their rotation will drive the two movable frames 11 to move synchronously towards the rotating chamber 5 along the limit rod 10 through thread transmission. When the movable frame 11 is completely moved into the rotating chamber 5 and disengaged from the positioning chamber 12 of the end cover 2, the connection constraint between the slider body 1 and the end cover 2 is released, and the two can be easily separated to complete the disassembly operation. During assembly, the rotating frame 3 is rotated in the opposite direction to reset the movable frame 11 into the positioning chamber 12. After the drag frame 4 is released, the spring 14 resets and drives the drag frame 4 rod to re-insert into the through hole 15, thereby achieving the locking and fixing of the slider body 1 and the end cover 2.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-release ball linear slider with a dust cover, comprising a slider body (1) and an end cap (2), characterized in that, The slider body (1) is provided with a rotating chamber (5) and a transmission chamber (7) inside. The end cover (2) is provided with a positioning chamber (12) inside. A rotating frame (3) is rotatably provided on the slider body (1). A screw (6) is rotatably provided in the rotating chamber (5). The ends of the rotating frame (3) and the screw (6) extend into the transmission chamber (7) and are connected by a rotating mechanism. A movable frame (11) is threaded on the screw (6) through a limiting mechanism. A drag frame (4) extending into the positioning chamber (12) is slidably provided on the end cover (2) through an elastic mechanism. A through hole (15) is provided on the movable frame (11).

2. The quick-release ball linear slider with a dust cover according to claim 1, characterized in that, The rotating mechanism includes a first gear (8) fixedly mounted on the rotating frame (3), and a second gear (9) fixedly mounted on the screw (6) meshing with the first gear (8).

3. A quick-release ball linear slider with a dust cover according to claim 2, characterized in that, The limiting mechanism includes a limiting rod (10) fixedly installed in the rotating chamber (5), and the limiting rod (10) slides through the movable frame (11).

4. A quick-release ball linear slider with a dust cover according to claim 3, characterized in that, The elastic mechanism includes a fixed ring (13) fixedly installed on the towing frame (4), and a spring (14) is provided in the positioning chamber (12). The two ends of the spring (14) are respectively connected to the inner wall of the positioning chamber (12) and the outer wall of the fixed ring (13).

5. A quick-release ball linear slider with a dust cover according to claim 4, characterized in that, Both the first gear (8) and the second gear (9) are bevel gears, and the specific meshing relationship between the first gear (8) and the second gear (9) is perpendicular meshing.

6. A quick-release ball linear slider with a dust cover according to claim 5, characterized in that, The number of screws (6) is two, and the threads of the two screws (6) are facing opposite directions.

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