High-load impact-resistant sliding table air cylinder
By designing a floating structure and a buffer adjustment component, the stability problem of the slide cylinder under high load and impact was solved, realizing a high-load impact-resistant slide cylinder and improving the operational stability and reliability of the equipment.
Patent Information
- Application Number
- CN202520220379.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing slide cylinders lack rigidity under high loads and frequent impacts, making them prone to damage, which leads to unstable equipment operation and affects production efficiency and reliability.
The system employs a floating structure connection and stroke limit mechanism, combined with first and second buffer adjustment components, to enhance impact resistance, reduce wear and noise, and improve cylinder stability and reliability.
It significantly enhances the stability and reliability of the slide cylinder under high load and impact conditions, extends its service life, and ensures high precision of motion trajectory and equipment operating efficiency.
Smart Images
Figure CN223923442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automation technology, and in particular to a high-load, impact-resistant slide cylinder. Background Technology
[0002] In the field of industrial automation, slide cylinders are widely used to guide the motion of products, enabling them to perform reciprocating linear motion in a given direction. However, currently available slide cylinders have some shortcomings in practical applications:
[0003] 1) Its stiffness and load-bearing capacity are relatively weak, making it difficult to meet the usage requirements under high load conditions;
[0004] 2) It cannot achieve stable and continuous operation, is prone to failure, and affects production efficiency and equipment reliability;
[0005] 3) It can only withstand general load impacts. Once it encounters a large impact force, the structure and performance of the cylinder will be severely affected, resulting in a shortened service life.
[0006] In actual industrial production, many devices need to withstand high loads and frequent impacts. Existing slide cylinders are difficult to meet these demanding working conditions, thus limiting the performance improvement and application scope of related devices. Utility Model Content
[0007] The purpose of this invention is to provide a high-load, impact-resistant slide cylinder. The front connecting plate adopts a floating structure connection, and the stroke limit mechanism is equipped with a first buffer adjustment component and a second buffer adjustment component. This not only improves the impact resistance but also effectively reduces wear and impact noise caused by rigid contact. It significantly enhances the stability and reliability of the cylinder under high-impact conditions, achieving high load, impact resistance, and stable and long-term operation. At the same time, it ensures the high precision and stability of the motion trajectory, which can effectively improve the operating efficiency and reliability of the equipment.
[0008] To achieve the above objectives, the following technical solution is adopted:
[0009] A high-load, impact-resistant slide cylinder includes a cylinder body and a stroke limiting mechanism for limiting the cylinder stroke. The cylinder body includes a cylinder barrel, a slide rail disposed on the top of the cylinder barrel, a slide cover slidably connected to the slide rail, and a piston assembly disposed inside the cylinder barrel and extending to the front end of the cylinder barrel. The stroke limiting mechanism includes an adjusting seat fixed to one side of the cylinder barrel, a limiting block fixed to the slide cover and extending into the adjusting seat, a first buffer adjusting assembly disposed at the front end of the adjusting seat, and a second buffer adjusting assembly disposed at the rear end of the adjusting seat. The front end of the slide cover is connected to the piston assembly via a front connecting plate. A floating structure is provided between the front connecting plate and the piston assembly.
[0010] Preferably, the adjusting seat has a U-shaped structure; the horizontal end of the U-shape of the adjusting seat is arranged along the extension and retraction direction of the piston assembly; the first buffer adjusting assembly and the second buffer adjusting assembly are disposed on the vertical end of the U-shape of the adjusting seat; at least one first positioning pin is provided on both the horizontal end and the vertical end of the U-shape of the adjusting seat; the first positioning pin is interference-fitted with the adjusting seat and the cylinder respectively along the extension and retraction direction perpendicular to the piston assembly.
[0011] Preferably, the first buffer adjustment assembly includes a first adjustment stud disposed along the extension and retraction direction of the piston assembly, and a first buffer pad fixed to the limiting end of the first adjustment stud; the first adjustment stud passes through the U-shaped vertical end of the adjustment seat and is threadedly connected to the U-shaped vertical end of the adjustment seat.
[0012] Preferably, the second buffer adjustment assembly includes a second adjusting stud disposed along the extension and retraction direction of the piston assembly, a second buffer pad disposed at the limiting end of the second adjusting stud, and an elastic element connected between the second adjusting stud and the second buffer pad; the second adjusting stud passes through the U-shaped vertical end of the adjustment seat and is threadedly connected to the U-shaped vertical end of the adjustment seat.
[0013] Preferably, the floating structure includes a first fixed sleeve and a second fixed sleeve that are spaced apart on the piston assembly along the extension and retraction direction of the piston assembly, and a buffer ring embedded between the first fixed sleeve and the piston assembly; the first fixed sleeve is disposed near the front end of the cylinder, and the buffer ring protrudes from the first fixed sleeve in a direction away from the cylinder; the piston assembly is fixed to the front connecting plate via the second fixed sleeve, and the front connecting plate is located between the first fixed sleeve and the second fixed sleeve.
[0014] Preferably, a second positioning pin is provided between the limiting block and the side wall of the sliding cover; the second positioning pin is interference-fitted with the limiting block and the sliding cover respectively along the extension and retraction direction perpendicular to the piston assembly.
[0015] By adopting the above solution, the beneficial effects of this utility model are:
[0016] This utility model provides a high-load, impact-resistant slide cylinder. The front connecting plate employs a floating structure connection, and the stroke limiting mechanism incorporates a first and second buffer adjustment component. This not only improves impact resistance but also effectively reduces wear and impact noise caused by rigid contact, significantly enhancing the cylinder's stability and reliability under high-impact conditions. It achieves high-load, impact-resistant, and stable long-term operation while ensuring high precision and stability of the motion trajectory, effectively improving equipment operating efficiency and reliability. In a preferred embodiment, by setting the adjusting seat in a U-shape and combining it with an interference-fit first locating pin, the cylinder's shear resistance and impact strength are significantly improved. Furthermore, by setting a second locating pin between the limiting block and the sliding cover, the cylinder's shear resistance and impact strength are further enhanced. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present utility model;
[0018] Figure 2 This is a perspective view of the present invention without a sliding cover;
[0019] Figure 3 This is a perspective view of the floating structure of this utility model;
[0020] The following are explanations of the labels in the attached diagram:
[0021] 1—Cylinder, 2—Slide rail,
[0022] 3—Sliding cover, 4—Piston assembly,
[0023] 5—Adjusting seat, 6—Limit block,
[0024] 7—First buffer adjustment component, 8—Second buffer adjustment component,
[0025] 9—Floating structure, 10—First locating pin,
[0026] 11—Second locating pin; 12—Front connecting plate;
[0027] 71—First adjusting stud, 72—First buffer pad,
[0028] 81—Second adjusting stud, 82—Second buffer pad,
[0029] 91—First fixing sleeve, 92—Second fixing sleeve,
[0030] 93—Buffer ring. Detailed Implementation
[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0033] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0034] Reference Figures 1 to 3 As shown, this utility model provides a high-load impact-resistant slide cylinder, including a cylinder body and a stroke limiting mechanism for limiting the cylinder stroke; the cylinder body includes a cylinder barrel 1, a slide rail 2 disposed on the top of the cylinder barrel 1, a slide cover 3 slidably connected to the slide rail 2, and a piston assembly 4 disposed inside the cylinder barrel 1 and extending to the front end of the cylinder barrel 1; the stroke limiting mechanism includes an adjusting seat 5 fixed to one side of the cylinder barrel 1, a limiting block 6 fixed to the slide cover 3 and extending into the adjusting seat 5, a first buffer adjusting assembly 7 disposed at the front end of the adjusting seat 5, and a second buffer adjusting assembly 8 disposed at the rear end of the adjusting seat 5; the front end of the slide cover 3 is connected to the piston assembly 4 via a front connecting plate 12; a floating structure 9 is provided between the front connecting plate 12 and the piston assembly 4.
[0035] The adjusting seat 5 has a U-shaped structure; the horizontal end of the U-shape of the adjusting seat 5 is arranged along the extension and retraction direction of the piston assembly 4; the first buffer adjusting assembly 7 and the second buffer adjusting assembly 8 are provided on the vertical end of the U-shape of the adjusting seat 5; at least one first positioning pin 10 is provided on both the horizontal end and the vertical end of the U-shape of the adjusting seat 5; the first positioning pin 10 is interference-fitted with the adjusting seat 5 and the cylinder 1 respectively along the extension and retraction direction perpendicular to the piston assembly 4.
[0036] The first buffer adjustment assembly 7 includes a first adjusting stud 71 arranged along the extension and retraction direction of the piston assembly 4, and a first buffer pad 72 fixed to the limiting end of the first adjusting stud 71. The first adjusting stud 71 passes through the U-shaped vertical end of the adjusting seat 5 and is threadedly connected to the U-shaped vertical end of the adjusting seat 5. The limiting end of the first adjusting stud 71 is the end that extends into the adjusting seat 5. By turning the first adjusting stud 71, the length of the first adjusting stud 71 extending into the adjusting seat 5 can be adjusted, thereby adjusting the cylinder extension stroke.
[0037] The second buffer adjustment assembly 8 includes a second adjusting stud 81 arranged along the extension and retraction direction of the piston assembly 4, a second buffer pad 82 located at the limiting end of the second adjusting stud 81, and an elastic element connecting the second adjusting stud 81 and the second buffer pad 82. The second adjusting stud 81 passes through the U-shaped vertical end of the adjusting seat 5 and is threadedly connected to the U-shaped vertical end of the adjusting seat 5. The limiting end of the second adjusting stud 81 is the end that extends into the adjusting seat 5. By turning the second adjusting stud 81, the length of the second adjusting stud 81 extending into the adjusting seat 5 can be adjusted, thereby adjusting the cylinder retraction stroke. In a specific embodiment, the elastic element is a telescopic spring, and by creating a spring groove at the limiting end of the second adjusting stud 81, the telescopic spring can be hidden between the second adjusting stud 81 and the second buffer pad 82.
[0038] In the stroke limit mechanism, the adjusting seat 5 adopts an integrated U-shaped structure, adds multiple first positioning pins 10, and features an interference fit design, which significantly improves the overall shear resistance and impact resistance. Simultaneously, by setting the first buffer adjusting component 7 and the second buffer adjusting component 8, the impact resistance and load-bearing capacity of the slide cylinder are effectively improved. In the second buffer adjusting component 8, an elastic element is set between the second adjusting stud 81 and the second buffer pad 82, which effectively buffers the impact force during cylinder retraction, improving the cylinder's impact resistance.
[0039] The floating structure 9 includes a first fixed sleeve 91 and a second fixed sleeve 92 spaced apart on the piston assembly 4 along the extension and retraction direction of the piston assembly 4, and a buffer ring 93 embedded between the first fixed sleeve 91 and the piston assembly 4. The first fixed sleeve 91 is located near the front end of the cylinder 1, and the buffer ring 93 protrudes from the first fixed sleeve 91 in a direction away from the cylinder 1. The piston assembly 4 is fixed to the front connecting plate 12 via the second fixed sleeve 92, and the front connecting plate 12 is located between the first fixed sleeve 91 and the second fixed sleeve 92. Specifically, the buffer ring 93 is made of rubber. During the extension and retraction of the front connecting plate 12 along with the piston assembly 4, the front connecting plate 12 and the buffer ring 93 abut against each other, changing the contact between the front connecting plate 12 and the cylinder 1 from rigid contact to flexible contact, reducing friction and noise.
[0040] Furthermore, the piston rod of the piston assembly 4 extends outside the cylinder 1, the first fixed sleeve 91 and the second fixed sleeve 92 are sleeved on the piston rod, and the buffer ring 93 is sleeved between the piston rod and the first fixed sleeve 91.
[0041] A second positioning pin 11 is provided between the limiting block 6 and the side wall of the sliding cover 3; the second positioning pin 11 is interference-fitted with the limiting block 6 and the sliding cover 3 respectively along the extension and retraction direction perpendicular to the piston assembly 4. Specifically, the limiting block 6 is locked and fixed on the sliding cover 3 by fastening screws. With the simultaneous action of the fastening screws and the second positioning pin 11, the impact resistance is stronger.
[0042] This utility model provides a high-load, impact-resistant slide cylinder, which effectively improves the cylinder strength. Experimental verification shows that even with an eccentric load of 2.6 kg, the cylinder can still operate at a speed of 300 mm / s for more than 3 million cycles, effectively extending its overall lifespan. It is more stable and reliable while ensuring accuracy.
[0043] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the utility model and are not intended to limit the implementation of this utility model. For those skilled in the art, various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A high-load, impact-resistant slide cylinder, characterized in that, The device includes a cylinder body and a stroke limiting mechanism for limiting the cylinder stroke. The cylinder body includes a cylinder barrel, a slide rail located at the top of the cylinder barrel, a slide cover slidably connected to the slide rail, and a piston assembly located inside the cylinder barrel and extending to the front end of the cylinder barrel. The stroke limiting mechanism includes an adjusting seat fixed to one side of the cylinder barrel, a limiting block fixed to the slide cover and extending into the adjusting seat, a first buffer adjusting component located at the front end of the adjusting seat, and a second buffer adjusting component located at the rear end of the adjusting seat. The front end of the slide cover is connected to the piston assembly via a front connecting plate. A floating structure is provided between the front connecting plate and the piston assembly.
2. The high-load impact-resistant slide cylinder according to claim 1, characterized in that, The adjusting seat has a U-shaped structure; the horizontal end of the U-shape of the adjusting seat is arranged along the extension and retraction direction of the piston assembly; the first buffer adjusting assembly and the second buffer adjusting assembly are located on the vertical end of the U-shape of the adjusting seat; at least one first positioning pin is provided on both the horizontal end and the vertical end of the U-shape of the adjusting seat; the first positioning pin is interference-fitted with the adjusting seat and the cylinder respectively along the extension and retraction direction perpendicular to the piston assembly.
3. The high-load impact-resistant slide cylinder according to claim 2, characterized in that, The first buffer adjustment assembly includes a first adjustment stud disposed along the extension and retraction direction of the piston assembly, and a first buffer pad fixed to the limiting end of the first adjustment stud; the first adjustment stud passes through the U-shaped vertical end of the adjustment seat and is threadedly connected to the U-shaped vertical end of the adjustment seat.
4. The high-load impact-resistant slide cylinder according to claim 2, characterized in that, The second buffer adjustment assembly includes a second adjusting stud arranged along the extension and retraction direction of the piston assembly, a second buffer pad disposed at the limiting end of the second adjusting stud, and an elastic element connected between the second adjusting stud and the second buffer pad; the second adjusting stud passes through the U-shaped vertical end of the adjustment seat and is threadedly connected to the U-shaped vertical end of the adjustment seat.
5. The high-load impact-resistant slide cylinder according to claim 1, characterized in that, The floating structure includes a first fixed sleeve and a second fixed sleeve that are spaced apart on the piston assembly along the extension and retraction direction of the piston assembly, and a buffer ring embedded between the first fixed sleeve and the piston assembly; the first fixed sleeve is located near the front end of the cylinder, and the buffer ring protrudes from the first fixed sleeve in a direction away from the cylinder; the piston assembly is fixed to the front connecting plate via the second fixed sleeve, and the front connecting plate is located between the first fixed sleeve and the second fixed sleeve.
6. The high-load impact-resistant slide cylinder according to claim 1, characterized in that, A second positioning pin is provided between the limiting block and the side wall of the sliding cover; the second positioning pin is interference-fitted with the limiting block and the sliding cover respectively along the extension and retraction direction perpendicular to the piston assembly.