CN214888054U

CN214888054U - Stroke-adjustable power cylinder

Info

Publication number: CN214888054U
Application number: CN202120081509.9U
Authority: CN
Inventors: 陈春生
Original assignee: Changzhou Chuangling Machinery Co ltd
Current assignee: Changzhou Chuangling Machinery Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-11-26
Anticipated expiration: 2031-01-12

Abstract

The utility model belongs to the technical field of the power cylinder and specifically relates to power cylinder with adjustable stroke. The power cylinder comprises a cylinder body and a piston rod, wherein the cylinder body and the piston rod are connected in a sliding mode, a plate body is fixed at the end of the cylinder body, guide holes are formed in the plate body, a threaded rod is fixed on the piston rod and penetrates through the guide holes in the plate body, a nut is connected to the threaded rod in a threaded mode, a spring and a pressing plate are sleeved on the threaded rod, the two ends of the spring are connected to the nut and the pressing plate respectively, and the width of the pressing plate is larger than the diameter of the guide holes in the plate body. The utility model discloses a movement of nut on the threaded rod is realized to swivel nut. The extending stroke of the piston rod is controlled by changing the position of the nut. The application has simple structure and saves cost.

Description

Stroke-adjustable power cylinder

Technical Field

The utility model belongs to the technical field of the power cylinder and specifically relates to power cylinder with adjustable stroke.

Background

The power cylinder is an actuating element which converts hydraulic or pneumatic energy into mechanical energy and makes linear reciprocating motion (or swinging motion). However, the existing power cylinder with adjustable stroke has a complex structure and higher cost.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the technical problem described in the background art, the utility model provides a power cylinder with adjustable stroke. The movement of the nut on the threaded rod is achieved by rotating the nut. The extending stroke of the piston rod is controlled by changing the position of the nut. The application has simple structure and saves cost.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a power cylinder with adjustable stroke, includes cylinder body and piston rod, and cylinder body and piston rod sliding connection are in the same place, the end department of cylinder body is fixed with the plate body, is equipped with the guide hole on the plate body, is fixed with the threaded rod on the piston rod, and the threaded rod passes the guide hole on the plate body, and threaded connection has the nut on the threaded rod, and the cover is equipped with spring and clamp plate on the threaded rod, and the spring both ends are connected respectively on nut and clamp plate, and the width of clamp plate is greater than the diameter of guide hole on the plate body.

Specifically, a guide cylinder is fixed on the plate body, and the threaded rod penetrates through the guide cylinder.

Specifically, a linear guide rail is fixed on the cylinder body, a sliding block is fixed at the end of the threaded rod, and the linear guide rail is matched with the sliding block.

Specifically, the piston rod is inserted and fixed with a circular plate, and two ends of the circular plate are respectively fixed with a threaded rod.

Specifically, a flange is fixed at the end of the piston rod.

Specifically, the pressing plate is made of rubber.

The utility model has the advantages that: the utility model provides a power cylinder with adjustable stroke. The movement of the nut on the threaded rod is achieved by rotating the nut. The extending stroke of the piston rod is controlled by changing the position of the nut. The application has simple structure and saves cost.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

in the figure, 1, a cylinder body, 2, a piston rod, 3, a plate body, 4, a threaded rod, 5, a nut, 6, a spring and 7, press

The device comprises a plate, 8 guide cylinders, 9 linear guide rails, 10 sliding blocks, 11 circular plates and 12 flanges.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Fig. 1 is a schematic structural diagram of the present invention.

The utility model provides a power cylinder with adjustable stroke, includes cylinder body 1 and piston rod 2, and cylinder body 1 and 2 sliding connection of piston rod are in the same place, the end department of cylinder body 1 is fixed with plate body 3, is equipped with the guide hole on the plate body 3, is fixed with threaded rod 4 on the piston rod 2, and threaded rod 4 passes the guide hole on the plate body 3, and threaded connection has nut 5 on the threaded rod 4, and the cover is equipped with spring 6 and clamp plate 7 on the threaded rod 4, and nut 5 and clamp plate 7 are connected respectively at spring 6 both ends, and the width of clamp plate 7 is greater than the diameter of guide hole on the plate body 3. A guide cylinder 8 is fixed on the plate body 3, and the threaded rod 4 penetrates through the guide cylinder 8. A linear guide rail 9 is fixed on the cylinder body 1, a sliding block 10 is fixed at the end of the threaded rod 4, and the linear guide rail 9 is matched with the sliding block 10. The piston rod 2 is fixed with a circular plate 11 in a penetrating way, and two ends of the circular plate 11 are respectively fixed with a threaded rod 4. A flange 12 is fixed at the end of the piston rod 2. The pressing plate 7 is made of rubber.

As shown in fig. 1, the nut 5 is rotated to move the nut 5 along the threaded rod 4, and after the nut 5 is moved to the right position, the piston rod 2 in the cylinder 1 extends outward, and at this time, the piston rod 2 drives the threaded rod 4 to move linearly along the guide hole on the plate body 3 until the nut 5 and the pressing plate 7 are pressed against the plate body 3, and at this time, the piston rod 2 cannot extend forward. The closer the nut 5 is moved to the rear end of the threaded rod 4, the longer the piston rod 2 can be moved. The shorter the stroke the piston rod 2 can move if the nut 5 is located closer to the top of the threaded rod 4. The tail end of the threaded rod 4 is fixed with a slide block 10, and the top end of the threaded rod 4 is fixed on a circular plate 11. After the pressing plate 7 is attached to the plate body 3, the nut 5 will move forward a stroke along with the threaded rod 4, and the spring 6 will be gradually compressed, so as to avoid hard contact between the pressing plate 7 and the plate body 3. During the movement of the threaded rod 4, the slide block 10 moves linearly along the linear guide 9, thereby helping the movement of the threaded rod 4 and the piston rod 2 to be more stable.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a power cylinder with adjustable stroke, includes cylinder body (1) and piston rod (2), and cylinder body (1) and piston rod (2) sliding connection are in the same place, characterized by, the end department of cylinder body (1) is fixed with plate body (3), is equipped with the guide hole on plate body (3), is fixed with threaded rod (4) on piston rod (2), and threaded rod (4) pass the guide hole on plate body (3), and threaded connection has nut (5) on threaded rod (4), and the cover is equipped with spring (6) and clamp plate (7) on threaded rod (4), and spring (6) both ends are connected respectively on nut (5) and clamp plate (7), and the width of clamp plate (7) is greater than the diameter of guide hole on plate body (3).

2. The stroke adjustable power cylinder of claim 1, wherein: a guide cylinder (8) is fixed on the plate body (3), and the threaded rod (4) penetrates through the guide cylinder (8).

3. The stroke adjustable power cylinder of claim 1, wherein: a linear guide rail (9) is fixed on the cylinder body (1), a sliding block (10) is fixed at the end of the threaded rod (4), and the linear guide rail (9) is matched with the sliding block (10).

4. The stroke adjustable power cylinder of claim 1, wherein: the piston rod (2) penetrates through and is fixed with a circular plate (11), and threaded rods (4) are respectively fixed at two ends of the circular plate (11).

5. The stroke adjustable power cylinder of claim 1, wherein: and a flange (12) is fixed at the end of the piston rod (2).

6. The stroke adjustable power cylinder of claim 1, wherein: the pressing plate (7) is made of rubber.