Anti-rotation gap-adjustable air cylinder
By introducing an adjusting element into the cylinder to adjust the clamping force of the pressure block, the problem of difficult adjustment of the piston rod movement speed is solved, achieving precise control of the piston rod and improving the versatility of the cylinder.
Patent Information
- Application Number
- CN202520663054.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-04-09
AI Technical Summary
The movement speed of the piston rod in existing cylinders is difficult to adjust, resulting in poor versatility and inconvenience in use.
By introducing an adjusting component into the cylinder, the clamping force of the pressure block on the stroke surface can be adjusted, and the sliding speed of the piston rod can be precisely controlled. The adjusting component and pressure block, which are designed as separate parts, are easy to replace.
It achieves precise control of the linear reciprocating motion of the piston rod, improves the versatility and ease of use of the cylinder, and extends the service life of the cylinder.
Smart Images
Figure CN223881462U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of air cylinder, especially a kind of air cylinder with adjustable anti-rotation gap. BACKGROUND
[0002] Air cylinder refers to the cylindrical metal machine part that guides piston to carry out linear reciprocating motion in cylinder, air is converted into mechanical energy by expansion in engine cylinder, and gas is compressed by piston in compressor cylinder to increase pressure. In the prior art, the air cylinder includes cylinder barrel and piston rod, and the piston rod is telescopically movable relative to the cylinder barrel. However, the movement speed of the telescopic rod is difficult to adjust during use of the air cylinder, which leads to poor versatility of the air cylinder and inconvenient use. SUMMARY
[0003] The utility model discloses a kind of air cylinder with adjustable anti-rotation gap to solve the technical problems described above, user can adjust the pressing force of pressure block to travel surface by controlling the degree of rotation of adjusting part, to accurately control the sliding speed of piston rod, improve the versatility of the air cylinder, it is more convenient to use.
[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: an air cylinder with adjustable anti-rotation gap, comprising a cylinder barrel and a piston rod, the cylinder barrel is hollow inside and has a front cylinder cover and a rear cylinder cover at both ends respectively, a travel cavity is formed between the front cylinder cover, the rear cylinder cover and the inside of the cylinder barrel, the piston rod is provided with a piston block slidingly arranged in the travel cavity, the front cylinder cover is provided with a shaft sleeve for sleeving and slidingly engaging the piston rod, an outer wall of the piston rod is provided with a travel surface extending in the axial direction, an active hole is formed in the position of the shaft sleeve relative to the travel surface, a pressure block is inserted into the active hole, the front cylinder cover penetrates an adjusting hole communicating with the active hole, an adjusting part is threadedly connected in the adjusting hole, one end of the adjusting part extends to the outside of the front cylinder cover, the other end of the adjusting part abuts against the pressure block, and an anti-rotation gap is formed between the side of the pressure block extending into the shaft sleeve and the inner wall of the shaft sleeve, and the pressure block abuts against the travel surface.
[0005] Preferably, the front cylinder cover is provided with a mounting hole and a through hole arranged coaxially, the inner diameter of the mounting hole is larger than that of the through hole, the shaft sleeve is fixedly connected in the mounting hole, and the inner wall of the through hole is matched with the inner wall of the shaft sleeve.
[0006] Preferably, one end of the adjusting part extending out of the front cylinder cover is sleeved and threadedly connected with a limiting ring, and the bottom surface of the limiting ring abuts against the outer wall of the front cylinder cover.
[0007] Preferably, the outer edge of the limiting ring is a regular polygon or a special shape.
[0008] Preferably, the upper end of the adjusting member is provided with an operation slot, and the inner wall of the operation slot is a regular polygon or a special-shaped hole.
[0009] Compared with the prior art, the utility model has the beneficial effects that:
[0010] The utility model discloses a prevent the rotation gap adjustable air cylinder, through with adjusting member is spun into the adjusting hole of front cylinder cover, make the end of adjusting member abuts on the pressure block, with drive pressure block and reach the movable hole of friction with the stroke surface, with this to limit the rotation of piston rod, guide its carry out the linear reciprocating motion of no rotation, and user can adjust the pressure of pressure block to stroke surface through the spin -in degree of control adjusting member, thereby accurate control piston rod's sliding speed, has improved the versatility of the air cylinder, uses convenient, and adjusting member and pressure block adopt the split type design, make replacement when pressure block wear, ensure the service life and working performance of air cylinder. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is the structure schematic diagram of the air cylinder in the embodiment;
[0012] Figure 2 It is the section of the air cylinder in the embodiment Figure 1 ;
[0013] Figure 3 It is the section of the air cylinder in the embodiment Figure 2 ;
[0014] Figure 4 It is the explosion drawing of the air cylinder in the embodiment.
[0015] In the drawing: 1, cylinder barrel;2, piston rod;201, piston block;202, stroke surface;3, front cylinder cover;301, adjusting hole;302, mounting hole;303, through -hole;4, rear cylinder cover;5, stroke cavity;6, shaft sleeve;601, movable hole;602, pressure block;7, adjusting member;701, operation slot;8, prevent rotation gap;9, limit ring. DETAILED DESCRIPTION
[0016] The utility model will be further described below in combination with the drawings.
[0017] Reference Figure 1 , Figure 2 , Figure 3The utility model provides a kind of anti-rotation gap adjustable cylinder, including cylinder 1 and piston rod 2, cylinder 1 is hollow inside and its both ends are provided with front cylinder cover 3 and rear cylinder cover 4 respectively, front cylinder cover 3, rear cylinder cover 4, cylinder 1 inside form stroke cavity 5, one end of piston rod 2 is provided with piston block 201, piston block 201 is slidably arranged in stroke cavity 5, front cylinder cover 3 is provided with coaxially arranged mounting hole 302 and through-hole 303, the inner diameter of mounting hole 302 is greater than through-hole 303, mounting hole 302 is fixedly connected with shaft sleeve 6, the other end of piston rod 2 is sleeved and slidably fitted in shaft sleeve 6, the inner wall of through-hole 303 and the inner wall of shaft sleeve 6 are matched, the outer wall of piston rod 2 is provided with stroke surface 202 extending along its axial direction, and the position of shaft sleeve 6 relative to stroke surface 202 is penetrated with movable hole 601, and movable hole 601 is inserted with pressing block 602, front cylinder cover 3 is penetrated with adjusting hole 301 communicated with movable hole 601, adjusting hole 301 is threadedly connected with adjusting part 7, one end of adjusting part 7 extends to the outside of front cylinder cover 3, and the other end of adjusting part 7 abuts on pressing block 602.
[0018] The side of pressing block 602 extending into shaft sleeve 6 is matched with the inner wall of shaft sleeve 6 to form anti-rotation gap 8, and anti-rotation gap 8 is matched with piston rod 2. When the cylinder is used, the adjusting part 7 is screwed into the adjusting hole 301 of the front cylinder cover 3, so that the end of the adjusting part 7 abuts on the pressing block 602, to drive the pressing block 602 to extend out of the movable hole 601 and abut against the stroke surface 202, so as to limit the rotation of the piston rod 2 and guide it to perform linear reciprocating motion without rotation.
[0019] The upper end of the adjusting part 7 is provided with an operating slot 701, and the inner wall of the operating slot 701 is a regular polygon or a special shape. Preferably, the operating slot 701 is a regular hexagon, so that the user can use a corresponding size of inner hexagonal wrench to drive the operating adjusting part 7. The adjusting part 7 is screwed inward to drive the pressing block 602 to press the stroke surface 202, so as to limit and damp the translational sliding of the piston rod 2. The pressing force of the pressing block 602 on the piston rod 2 can be controlled according to the screwing degree of the adjusting part 7, or the adjusting part 7 is screwed out to release the pressing block 602, so that the pressing block 602 only limits the translational sliding of the piston rod 2.
[0020] The user can adjust the pressing force of the pressing block 602 on the stroke surface 202 by controlling the screwing degree of the adjusting part 7, so as to accurately control the sliding speed of the piston rod 2, improve the universality of the cylinder, and use conveniently. The adjusting part 7 and the pressing block 602 are designed in a split type, which is convenient for replacement when the pressing block 602 is worn out, and ensures the service life and working performance of the cylinder.
[0021] The adjusting member 7 is sleeved and screwed with a limiting ring 9 at one end of the front cylinder cover 3. The outer edge of the limiting ring 9 is a regular polygon or a special shape. Preferably, the limiting ring 9 can be a nut structure. The length of the screwing stroke of the adjusting member 7 can be adjusted by the screwing connection between the limiting ring 9 and the adjusting member 7. When the adjusting member 7 is screwed in place, the bottom surface of the limiting ring 9 abuts against the outer wall of the front cylinder cover 3 to limit the screwing degree of the adjusting member 7.
[0022] Of course, the above is only a typical example of the present application, in addition to this, the present application can have other various specific implementation manners, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.
Claims
1. A cylinder with adjustable anti-rotation clearance, characterized in that, The device includes a cylinder (1) and a piston rod (2). The cylinder (1) is hollow inside and has a front cylinder head (3) and a rear cylinder head (4) at its two ends, respectively. A stroke cavity (5) is formed between the front cylinder head (3), the rear cylinder head (4), and the inside of the cylinder (1). The piston rod (2) is provided with a piston block (201) that is slidably disposed in the stroke cavity (5). The front cylinder head (3) is provided with a bushing (6) that is fitted and slidably engaged with the piston rod (2). The outer wall of the piston rod (2) has a stroke surface (202) that extends along its axial direction. The bushing (6) has a through-hole at a position relative to the stroke surface (202). A movable hole (601) is provided, and a pressure block (602) is inserted into the movable hole (601). The front cylinder head (3) has an adjustment hole (301) that communicates with the movable hole (601). An adjustment member (7) is threaded into the adjustment hole (301). One end of the adjustment member (7) extends to the outside of the front cylinder head (3), and the other end of the adjustment member (7) abuts against the pressure block (602). The side of the pressure block (602) that extends into the bushing (6) cooperates with the inner wall of the bushing (6) to form an anti-rotation gap (8). The pressure block (602) abuts against the stroke surface (202).
2. The cylinder with adjustable anti-rotation clearance according to claim 1, characterized in that, The front cylinder head (3) has a coaxially arranged mounting hole (302) and a through hole (303). The inner diameter of the mounting hole (302) is larger than that of the through hole (303). The bushing (6) is fixedly connected in the mounting hole (302). The inner wall of the through hole (303) is in contact with the inner wall of the bushing (6).
3. A cylinder with adjustable anti-rotation clearance according to claim 1, characterized in that, The adjusting member (7) extends out of the front cylinder head (3) and is threadedly connected to a limiting ring (9), the bottom surface of which abuts against the outer wall of the front cylinder head (3).
4. A cylinder with adjustable anti-rotation clearance according to claim 3, characterized in that, The outer edge of the limiting ring (9) is a regular polygon or an irregular shape.
5. A cylinder with adjustable anti-rotation clearance according to claim 1, characterized in that, The upper end of the adjusting member (7) is provided with an operating groove (701), and the inner wall of the operating groove (701) is a regular polygon or an irregular shape.