Anti-rotation stroke control oil cylinder
By adopting a combined design of stroke switch and self-lubricating sliding sleeve in the oil cylinder, the high cost and unadjustability problems of the existing oil cylinder position control method are solved, and higher trigger reliability and sensitivity are achieved, which extends the oil cylinder Service life and reduce overall cost.
Patent Information
- Application Number
- CN202420337515.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-02-23
AI Technical Summary
The existing cylinder position control method relies on expensive and inconvenient displacement sensors and high-cost proximity switches, which are prone to oil leakage and cannot be adjusted, affecting detection accuracy and reliability.
A stroke control cylinder with anti-rotation is designed, and a stroke switch is used instead of a proximity switch. The trigger block moves synchronously with the guide rod, and the angled structure is used to improve the trigger efficiency and sensitivity, and reduce friction through self-lubricating sliding sleeves to achieve Adjustability of the guide rod.
It improves the reliability and sensitivity of triggers, reduces the false touch rate, extends the service life of the oil cylinder, and reduces the overall cost, making the stroke detection of the oil cylinder more flexible and stable, and avoids environmental impact.
Smart Images
Figure CN222254494U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of oil cylinders, in particular to an anti-rotation stroke control oil cylinder. Background Art
[0002] When the mechanical structure requires automatic control of the cylinder, the cylinder is required to have a certain position control function, or when the mechanical structure cannot be installed with a position control device, there is a greater reliance on the position control of the cylinder.
[0003] Existing oil cylinders generally use displacement sensors and proximity switches to achieve the above functions. Displacement sensors are expensive, have a long delivery time, are inconvenient to repair and replace, and have high requirements for oil cylinder processing and installation. Improper processing and installation are prone to oil leakage and affect detection accuracy, and will be affected by the outer diameter temperature or magnetic field. Proximity switches require high-pressure proximity switches, the internal structure of the oil cylinder is relatively complex, the cost is high, it is prone to oil leakage, and the stroke detection is fixed and cannot be adjusted. Summary of the invention
[0004] The technical problem mainly solved by the utility model is to provide an anti-rotation stroke control oil cylinder, which has an anti-rotation function, a simple and reliable touch structure, and improves the sensitivity of the reliability of the trigger.
[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an anti-rotation stroke control cylinder, including a cylinder barrel, a piston rod is arranged in the cylinder barrel, a guide rod parallel to the piston rod is movably connected to the outer side of the cylinder barrel, the guide rod is fixedly connected to the piston rod, at least one stroke switch is arranged on the cylinder barrel, a trigger block corresponding to the stroke switch is arranged on the guide rod, the piston rod is extended and retracted to drive the guide rod to translate, so that the trigger block touches the stroke switch corresponding to it.
[0006] In a preferred embodiment of the present invention, the front end of the trigger block is an oblique angle structure, and the oblique angle structure contacts the travel switch.
[0007] In a preferred embodiment of the present invention, the trigger block is movably sleeved on the guide rod, and the trigger block is locked on the guide rod by screws.
[0008] In a preferred embodiment of the present invention, the number of the trigger blocks and the travel switch is 2, and the trigger blocks are respectively arranged before and after the travel switch.
[0009] In a preferred embodiment of the present utility model, a bracket is provided on the rod head of the piston rod, and the guide rod is fixedly connected to the bracket.
[0010] In a preferred embodiment of the utility model, a fixing frame is provided on the cylinder barrel, the guide rod is movably connected in the fixing frame, and a self-lubricating sliding sleeve movably matched with the guide rod is provided in the fixing frame.
[0011] In a preferred embodiment of the present invention, the fixing frame and the bracket are located outside the trigger block.
[0012] In a preferred embodiment of the present utility model, the travel switch is mounted on a fixed plate, and the fixed plate is connected to the cylinder.
[0013] The beneficial effects of the utility model are as follows: the anti-rotation stroke control oil cylinder of the utility model adopts a stroke switch to replace the existing proximity switch, and the stroke switch is triggered by the trigger block, thereby improving the sensitivity of the reliability of the trigger.
[0014] The utility model discloses an anti-rotation stroke control oil cylinder, a trigger block and a guide rod move synchronously, and an angled structure at the front end improves the triggering efficiency of the stroke switch and reduces the false touch rate, which is better for triggering the stroke switch, and at the same time, the position of the trigger block can be adjusted on the guide rod to realize control of different strokes.
[0015] The utility model discloses an anti-rotation stroke control oil cylinder, wherein the guide rod is connected to the support through a self-lubricating sliding sleeve, has low friction, better guidance and long service life, and the guide rod can also prevent the piston rod from rotating. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:
[0017] Figure 1 It is a structural schematic diagram of a preferred embodiment of the anti-rotation stroke control oil cylinder of the utility model;
[0018] Figure 2 yes Figure 1 A top view of
[0019] The markings of the components in the accompanying drawings are as follows: 1. cylinder, 2. piston rod, 3. guide rod, 4. bracket, 5. fixing frame, 6. fixing plate, 7. travel switch, 8. trigger block, 9. rod head. DETAILED DESCRIPTION
[0020] The technical scheme in the embodiment of the utility model will be described clearly and completely below. The structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions that can be implemented in the utility model, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that can be produced by the utility model and the purpose that can be achieved, should still fall within the scope of the technical content disclosed in the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of narration, and are not used to limit the scope that can be implemented. The change or adjustment of its relative relationship should also be regarded as the scope that can be implemented in the utility model without substantially changing the technical content.
[0021] See also Figure 1 And 2, an anti-rotation stroke control cylinder, including a cylinder barrel 1, a piston rod 2 is arranged in the cylinder barrel 1, and the cylinder can select existing conventional products, which will not be described here.
[0022] A guide rod 3 parallel to the piston rod 2 is movably connected to the outside of the cylinder 1, and the guide rod 3 is fixedly connected to the piston rod 2. A bracket 4 is provided on the rod head 9 of the piston rod 2, and one end of the guide rod 3 is fixedly connected to the bracket 4. A fixed frame 5 is provided on the cylinder 1, and the guide rod 3 is movably connected in the fixed frame 5. The fixed frame 5 is provided with a self-lubricating sliding sleeve that movably cooperates with the guide rod 3. The lubricated sliding sleeve has low friction, better guidance, and long service life. The guide rod 3 and the piston rod 2 are fixedly connected by the bracket 4, and the piston rod 2 is extended and retracted to drive the guide rod 3 to move laterally. The guide rod 3 can prevent the piston rod 2 from deflecting. At the same time, the guide rod 3 adopts chrome plating technology to increase wear resistance and corrosion resistance, maintenance-free, and long service life.
[0023] The cylinder 1 is provided with a fixing plate 6, which is located between the bracket 4 and the fixing frame 5, and at least one travel switch 7 is provided on the fixing plate 6. In the preferred embodiment, the number of travel switches is 2. The guide rod 3 is provided with a trigger block 8 corresponding to the travel switch 7, and the piston rod 2 is extended and retracted to drive the guide rod 3 to translate, so that any trigger block 8 touches the travel switch 7 corresponding to it.
[0024] The trigger block 8 is respectively arranged in front and behind the travel switch 7. The front end of the trigger block 8 is an angled structure, and the angled structure contacts the travel switch 7. The angled structure improves the triggering efficiency of the travel switch 7 and reduces the false touch rate, and is more optimal for triggering the travel switch 7.
[0025] The trigger block 8 is movably sleeved on the guide rod 3, and the trigger block 8 is screwed to the guide rod 3. By adjusting the axial position of the trigger block 8, the distance at which the piston rod 2 triggers the travel switch 7 can be changed, which needs to meet the detection control of different travels without being affected by the cylinder travel.
[0026] When oil flows through the right oil port, the cylinder is fully retracted, that is, the stroke of the cylinder is 0mm at this time. At this time, the travel switch 7 below outputs a signal, which can be used for control systems or components such as solenoid valves, allowing the control system or solenoid valve to sense that the stroke of the cylinder is 0mm at this time; when oil flows through the left oil port, the cylinder is fully extended, that is, the stroke of the cylinder is full stroke at this time. At this time, the travel switch 7 above outputs a signal, which can be used for control systems or components such as solenoid valves, allowing the control system or solenoid valve to sense that the stroke of the cylinder is full stroke at this time.
[0027] Different from the prior art, the anti-rotation stroke control oil cylinder of the utility model, in conjunction with the electromagnetic reversing valve, can make the oil cylinder automatically reverse and stop, and is more convenient to start (no controller is required), with reliable operation, stable performance, fast frequency response, and lower overall cost. The detection stroke can be freely adjusted as needed and is not affected by the environment. It also has anti-rotation capability, which prolongs the service life of the oil cylinder.
[0028] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings only describe one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.
Claims
1. A rotation-proof stroke control oil cylinder, comprising a cylinder barrel (1), a piston rod (2) being arranged in the cylinder barrel (1), a guide rod (3) being movably connected to the outer side of the cylinder barrel (1) and being parallel to the piston rod (2), the guide rod (3) being fixedly connected to the piston rod (2), characterized in that: The cylinder barrel (1) is provided with at least one travel switch (7), the guide rod (3) is provided with a trigger block (8) corresponding to the travel switch (7), and the piston rod (2) is extended and retracted to drive the guide rod (3) to move horizontally, thereby causing the trigger block (8) to touch the travel switch (7).
2. The anti-rotation stroke control cylinder according to claim 1, characterized in that: The front end of the trigger block (8) is in an oblique angle structure, and the oblique angle structure is in contact with the travel switch (7).
3. The anti-rotation stroke control cylinder according to claim 2, characterized in that: The trigger block (8) is movably sleeved on the guide rod (3), and the trigger block (8) is locked on the guide rod (3) by means of screws.
4. The anti-rotation stroke control cylinder according to claim 3, characterized in that: The number of the trigger blocks (8) and the travel switch (7) is two, and the trigger blocks (8) are respectively arranged before and after the travel switch (7).
5. The anti-rotation stroke control cylinder according to claim 1, characterized in that: A bracket (4) is provided on the rod head (9) of the piston rod (2), and the guide rod (3) is fixedly connected to the bracket (4).
6. The anti-rotation stroke control oil cylinder according to claim 5, characterized in that: A fixing frame (5) is provided on the cylinder (1), the guide rod (3) is movably connected in the fixing frame (5), and a self-lubricating sliding sleeve movably matched with the guide rod (3) is provided in the fixing frame (5).
7. The anti-rotation stroke control cylinder according to claim 6, characterized in that: The fixing frame (5) and the bracket (4) are located outside the trigger block (8).
8. The anti-rotation stroke control cylinder according to any one of claims 1 to 7, characterized in that: The travel switch (7) is mounted on a fixed plate (6), and the fixed plate (6) is connected to the cylinder (1).