Rodless air cylinder equipment capable of self-locking in case of air failure
By designing a rodless cylinder device with self-locking function when air is cut off, and utilizing components such as the cylinder body, piston rod, guide rail and built-in mounting plate, the safety hazards of demagnetization and sudden air cutting of the rodless cylinder when the load is too large are solved, and stable operating position fixing and self-locking function are achieved.
Patent Information
- Application Number
- CN202422976374.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Rodless cylinders are prone to demagnetization when the load is too large, the guide rails are prone to rust or contamination, there are safety hazards when the air is suddenly cut off, and it is difficult to fix the relative operating position.
A rodless cylinder device with self-locking function when air is cut off is designed. By setting up a cylinder body, piston rod, guide rail, self-mounting plate and load mounting plate, and utilizing components such as air inlet hole, air outlet hole, slider, brake block, spring and friction plate, stable movement and self-locking function of the piston rod in the cylinder are achieved. Combined with the cooperation of the limit part and the guide groove, stability is ensured in the air-cut state.
It effectively prevents the rodless cylinder from moving when the air is cut off, avoids safety hazards, fixes the relative operating position of the rodless cylinder, and ensures stable axial movement and reliable self-locking function.
Smart Images
Figure CN223387668U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rodless cylinder equipment, in particular to a rodless cylinder equipment with air-off self-locking. Background Art
[0002] A rodless cylinder refers to a cylinder that uses a piston to directly or indirectly connect to an external actuator and make it follow the piston to achieve reciprocating motion. The biggest advantage of this type of cylinder is that it saves installation space. It is divided into magnetic rodless cylinders (magnetic cylinders) and mechanical rodless cylinders. The working principle of rodless cylinders is the same as that of ordinary cylinders, but the external connection and sealing form are different. Both sides of the cylinder are hollow, and the permanent magnet in the piston rod drives another magnet outside the piston rod (moving part). It has very high requirements for cleanliness. The magnetic rodless cylinder often needs to be disassembled and cleaned with gasoline. This is related to its working environment. There is a piston in the rodless cylinder, but no piston rod. The piston is installed in the guide rail, the external load is connected to the piston, and the action depends on the intake.
[0003] At present, the cylinder body is usually driven by a magnetic couple. When the load is too large, demagnetization will occur. In addition, since the guide rail structure is exposed to the air, it is easy to rust or be contaminated by external stains. The rodless cylinder will move when the air is suddenly cut off, which brings safety hazards, and the relative operating position of the rodless cylinder cannot be fixed. Therefore, technical personnel in this field provide a rodless cylinder device with self-locking when the air is cut off to solve the problems raised in the above background technology. Utility Model Content
[0004] The purpose of the utility model is to provide a rodless cylinder device with air-off self-locking function to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a rodless cylinder device with air-off self-locking, comprising a mounting frame, a cylinder body mounted on one side of the mounting frame, a piston rod connected to the inside of the cylinder body, and a guide rail mounted on one side of the mounting frame and located on one side of the cylinder body;
[0006] A self-mounting plate is sleeved on the outer side of the cylinder body, a load mounting plate is mounted on one side of the self-mounting plate, and the self-mounting plate and the load mounting plate are screwed together by bolts.
[0007] Preferably: an air inlet hole is opened at one end of the cylinder body, a first air outlet hole is opened at the other end of the cylinder body, a slider is mounted on the outside of the guide rail, a brake block is installed at the bottom of the load mounting plate and on one side of the slider, a second air outlet hole is opened on the other side of the brake block, and the slider and the brake block are mounted by bolts.
[0008] Preferably, a plurality of support members are installed on the inner side of the brake block, a guide rod is connected to the inner side of the support member, a spring is sleeved on the outer side of the guide rod, and a friction plate is connected to one side of the support member.
[0009] Preferably, damping members are respectively installed at both ends of the mounting frame.
[0010] Preferably, both sides of the slider are connected with limiting parts respectively, and both sides of the guide rail are provided with guide grooves respectively, and the limiting parts are slidably connected with the guide grooves.
[0011] Preferably, a fixing plate is installed at both ends of the mounting frame and located on the other side of the damping member, and two mounting holes are respectively provided on the other side of the fixing plate.
[0012] Preferably, reinforcing ribs are installed on the inner side of the fixing plate.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] 1. In the utility model, by arranging a cylinder body, a piston rod, a guide rail, a self-mounting plate and a load mounting plate, the piston rod in the cylinder body moves due to changes in air pressure, and the piston rod drives the load mounting plate to slide on the outside of the cylinder body through the self-mounting plate, thereby preventing the rodless cylinder from moving when the air is suddenly cut off, avoiding the safety hazards caused by such movement, and being able to fix the relative operating position of the rodless cylinder, solving the problem that the middle position of the ordinary rodless cylinder is difficult to locate.
[0015] 2. In the utility model, an air inlet, a first air outlet, a slider, a brake block, a second air outlet, a support, a spring and a friction plate are provided. An air inlet and a first air outlet are provided at both ends of the cylinder body. By controlling the air inlet and air outlet of the compressed air at the head and tail ends, a pressure difference is achieved, so that the piston rod in the cylinder body moves from a high air pressure area to a low air pressure area. In the air-off state, the spring and the friction plate inside the brake block hold the linear guide rail, generating a static friction force, which is greater than the push-pull force generated by the cylinder when a certain pressure of compressed air is normally introduced into the cylinder, thereby achieving a reliable self-locking function.
[0016] 3. In the present invention, by providing a limiting portion and a guide groove, the cross-sections of the limiting portion and the guide groove are both right-angled trapezoids. The limiting portions on both sides of the slider slide in the guide grooves on both sides of the guide rail. The linear guide rail and the slider fit closely with each other, and the axial guiding effect is achieved through the concave-convex fit of the groove. When the load mounting plate is subjected to radial force within a certain range, the slider can still maintain stable axial movement with the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2It is a front view of the overall structure of the utility model;
[0019] Figure 3 It is a side view of the overall structure of the utility model;
[0020] Figure 4 It is a cross-sectional view of the cylinder body and the piston rod in the overall structure of the utility model;
[0021] Figure 5 The overall structure of the utility model Figure 1 Enlarged view of point A in the middle;
[0022] Figure 6 It is an enlarged cross-sectional view of the brake block in the overall structure of the utility model.
[0023] In the figure: 1. Mounting frame; 2. Cylinder body; 3. Piston rod; 4. Guide rail; 5. Self-contained mounting plate; 6. Load mounting plate; 7. Air inlet; 8. First air outlet; 9. Slider; 10. Brake block; 11. Second air outlet; 12. Support member; 13. Guide rod; 14. Spring; 15. Friction plate; 16. Damping member; 17. Limiting part; 18. Guide groove; 19. Fixing plate; 20. Mounting hole; 21. Reinforcing rib. 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] See also Figures 1 to 6 In an embodiment of the utility model, a rodless cylinder device with air-cut self-locking comprises a mounting frame 1, a cylinder body 2 is mounted on one side of the mounting frame 1, a piston rod 3 is connected to the inner side of the cylinder body 2, a guide rail 4 is mounted on one side of the mounting frame 1 and located on one side of the cylinder body 2, a self-mounting plate 5 is mounted on the outer side of the cylinder body 2, a load mounting plate 6 is mounted on one side of the self-mounting plate 5, damping members 16 are respectively mounted on both ends of the mounting frame 1, and the self-mounting plate 5 and the load mounting plate 6 are screwed together by bolts.
[0026] During use, the piston rod 3 in the cylinder body 2 moves due to the change in air pressure, and the piston rod 3 drives the load mounting plate 6 to slide on the outside of the cylinder body 2 through its own mounting plate 5. The damping member 16 at both ends of the mounting frame 1 is itself an oil cylinder, which can slow down the movement speed of the load mounting plate 6 driven by the cylinder body 2 at the end of the product, preventing the rodless cylinder from moving when the air is suddenly cut off, avoiding the safety hazards caused by this movement, and can fix the relative operating position of the rodless cylinder, solving the problem that the middle position of the ordinary rodless cylinder is difficult to position.
[0027] In one embodiment, specifically, an air inlet 7 is provided at one end of the cylinder body 2, a first air outlet 8 is provided at the other end of the cylinder body 2, a slider 9 is mounted on the outside of the guide rail 4, a brake block 10 is mounted on the bottom of the load mounting plate 6 and on one side of the slider 9, a second air outlet 11 is provided on the other side of the brake block 10, a plurality of support members 12 are mounted on the inside of the brake block 10, a guide rod 13 is connected to the inside of the support member 12, a spring 14 is mounted on the outside of the guide rod 13, a friction plate 15 is connected to one side of the support member 12, and the slider 9 and the brake block 10 are mounted by bolts.
[0028] Among them, the cylinder body 2 has an air inlet 7 and a first air outlet 8 at both ends. By controlling the air inlet and outlet of the compressed air at the head and tail, a pressure difference is achieved, so that the piston rod 3 in the cylinder body 2 moves from a high air pressure area to a low air pressure area. In the air-off state, the spring 14 and the friction plate 15 inside the brake block 10 hold the linear guide rail 4, generating static friction, which is greater than the push and pull force generated by the cylinder when a certain pressure of compressed air is normally introduced into the cylinder, thereby achieving a reliable self-locking function.
[0029] Furthermore, the slider 9 is connected to the limiting parts 17 on both sides, and the guide grooves 18 are provided on both sides of the guide rail 4. The limiting parts 17 are slidably connected to the guide grooves 18. The cross-sections of the limiting parts 17 and the guide grooves 18 are both right-angled trapezoids. The limiting parts 17 on both sides of the slider 9 slide in the guide grooves 18 on both sides of the guide rail 4. The linear guide rail 4 and the slider 9 are closely matched with each other, and the axial guiding effect is achieved through the concave-convex matching of the grooves. When the load mounting plate 6 is subjected to radial force within a certain range, the slider 9 can still maintain stable axial movement with the guide rail 4.
[0030] In one embodiment, specifically, a fixing plate 19 is installed at both ends of the mounting frame 1 and on the other side of the damping member 16. Two mounting holes 20 are respectively provided on the other side of the fixing plate 19. A reinforcing rib 21 is installed on the inner side of the fixing plate 19. The cross-section of the reinforcing rib 21 is triangular and is welded to the fixing plate 19. The cross-section of the fixing plate 19 is L-shaped. Bolts can be used to pass through the mounting holes 20 and fix the mounting frame 1 through the fixing plate 19, thereby improving the stability and convenience of installing and fixing the mounting frame 1.
[0031] The working principle of this utility model:
[0032] First, through the air inlet 7 and the first air outlet 8 at the head and tail ends of the cylinder body 2, by controlling the air inlet and outlet of the head and tail compressed air, a pressure difference is achieved, so that the piston rod 3 in the cylinder body 2 moves from a high air pressure area to a low air pressure area. In the air-off state, the spring 14 and the friction plate 15 inside the brake block 10 hold the linear guide rail 4, generating static friction, which is greater than the push and pull force generated by the cylinder when a certain pressure of compressed air is normally introduced into the cylinder, thereby achieving a reliable self-locking function.
[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A rodless cylinder device with air-off self-locking function, comprising a mounting frame (1), characterized in that: A cylinder body (2) is mounted on one side of the mounting frame (1), a piston rod (3) is connected to the inner side of the cylinder body (2), and a guide rail (4) is mounted on one side of the mounting frame (1) and located on one side of the cylinder body (2); A self-mounting plate (5) is sleeved on the outside of the cylinder body (2), a load mounting plate (6) is mounted on one side of the self-mounting plate (5), and the self-mounting plate (5) and the load mounting plate (6) are screwed together by bolts.
2. The rodless cylinder device with air shutoff and self-locking function according to claim 1, characterized in that: An air inlet (7) is provided at one end of the cylinder body (2), a first air outlet (8) is provided at the other end of the cylinder body (2), a slider (9) is sleeved on the outside of the guide rail (4), a brake block (10) is installed at the bottom of the load mounting plate (6) and on one side of the slider (9), a second air outlet (11) is provided on the other side of the brake block (10), and the slider (9) and the brake block (10) are mounted by bolts.
3. The rodless cylinder device with air shutoff and self-locking function according to claim 2, characterized in that: A plurality of support members (12) are installed on the inner side of the brake block (10), a guide rod (13) is connected to the inner side of the support member (12), a spring (14) is sleeved on the outer side of the guide rod (13), and a friction plate (15) is connected to one side of the support member (12).
4. The rodless cylinder device with air shutoff and self-locking function according to claim 1, characterized in that: Damping components (16) are respectively installed at both ends of the mounting frame (1).
5. The rodless cylinder device with air shutoff and self-locking function according to claim 2, characterized in that: The slider (9) has two inner sides connected to limiting portions (17) respectively. The guide rail (4) has two inner sides provided with guide grooves (18) respectively. The limiting portions (17) are slidably connected to the guide grooves (18).
6. The rodless cylinder device with air shutoff and self-locking function according to claim 4, characterized in that: A fixing plate (19) is installed at both ends of the mounting frame (1) and located on the other side of the damping member (16), and two mounting holes (20) are respectively provided on the other side of the fixing plate (19).
7. The rodless cylinder device with air shutoff and self-locking function according to claim 6, characterized in that: A reinforcing rib (21) is installed on the inner side of the fixing plate (19).