CN218294046U

CN218294046U - Piston stroke adjusting mechanism for hydraulic cylinder

Info

Publication number: CN218294046U
Application number: CN202222669466.3U
Authority: CN
Inventors: 陶良梅; 仲小芹
Original assignee: Dongying Qili Industry And Trade Co ltd
Current assignee: Dongying Qili Industry And Trade Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-01-13
Anticipated expiration: 2032-10-10

Abstract

The utility model discloses a be used for piston stroke adjustment mechanism for pneumatic cylinder, including hydraulic cylinder body, draining mouth and oil inlet, the internal connection of hydraulic cylinder body has the piston rod, and has seted up the draining mouth above the right side of hydraulic cylinder body to the oil inlet has been seted up to hydraulic cylinder body's right side below, hydraulic cylinder body's below front end rotates and is connected with the regulation pole, and adjusts the inner of pole and be fixed with first helical gear, hydraulic cylinder body's top bonding is provided with the buffing pad, the draw-in groove has been seted up to the inside side of hydraulic cylinder body. This a be used for piston stroke adjustment mechanism for pneumatic cylinder can be through rotating the regulation pole, makes the regulation pole drive the second helical gear meshing rotation on screw rod surface through first helical gear, and then makes the regulation cock seat with threaded rod threaded connection upward movement on the inside draw-in groove of hydraulic cylinder body, is convenient for adjust the distance between regulation cock seat and the piston, and then conveniently adjusts this piston motion stroke.

Description

Piston stroke adjusting mechanism for hydraulic cylinder

Technical Field

The utility model relates to a hydraulic pressure correlation technique field specifically is a piston stroke adjustment mechanism for pneumatic cylinder.

Background

The hydraulic cylinder has simple structure and reliable work. When the reciprocating motion is realized by using the hydraulic cylinder, a speed reducer can be omitted, no transmission gap exists, and the motion is stable, so that the hydraulic cylinder is widely applied to various mechanical hydraulic systems, the moving stroke of the internal piston in the hydraulic cylinder directly concerns the reciprocating motion range of the hydraulic cylinder, and the adjustment of the piston stroke plays an important role on the hydraulic cylinder;

current be used for piston stroke adjustment mechanism for pneumatic cylinder when using, it is convenient inadequately to adjust, and the skew appears easily after adjusting, influences the accurate nature of piston motion stroke, and the buffering effect of the inside piston motion of pneumatic cylinder is relatively poor, damages the piston easily, uses and has the limitation, to above-mentioned problem, carries out the innovative design on original a basis that is used for piston stroke adjustment mechanism for the pneumatic cylinder.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for piston stroke adjustment mechanism for pneumatic cylinder to current being used for piston stroke adjustment mechanism for pneumatic cylinder when using among the above-mentioned background art of solution, it is convenient inadequately to adjust, and the skew appears easily after adjusting, influences the accurate nature of piston motion stroke, and the buffering effect of the inside piston motion of pneumatic cylinder is relatively poor, damages the piston easily, and the use has the limitation problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a piston stroke adjustment mechanism for pneumatic cylinder, includes hydraulic cylinder body, draining port and oil inlet, hydraulic cylinder body's internal connection has the piston rod, and hydraulic cylinder body's right side top has seted up the draining port to the oil inlet has been seted up to hydraulic cylinder body's right side below, hydraulic cylinder body's below front end rotates and is connected with the regulation pole, and adjusts the inner of pole and be fixed with first helical gear, the inboard below of hydraulic cylinder body is provided with the threaded rod, and the lower extreme of threaded rod is fixed with the second helical gear to the below of threaded rod is provided with adjusts the chock, the end of piston rod is fixed with the piston body, and the inner chamber has been seted up at the middle part of piston body and piston rod, hydraulic cylinder body's top bonds and is provided with the buffing pad, the draw-in groove has been seted up to the inside side of hydraulic cylinder body.

Preferably, the first bevel gear below the adjusting rod is meshed with the second bevel gear on the surface of the threaded rod, and the threaded rod and the bottom of the inner side of the hydraulic cylinder body form a rotating structure.

Preferably, the connection mode of the adjusting plug seat and the threaded rod is threaded connection, a clamping block is welded on the surface of the adjusting plug seat, the adjusting plug seat and a clamping groove formed in the side face inside the hydraulic cylinder body through the clamping block form a tightly-attached sliding structure, and the threaded rod, the piston body and an inner cavity formed in the middle of the piston rod are of a sealed sliding structure.

Preferably, the cushion socket includes rubber pad, cushion chamber, connecting rod, spring, movable rod, fly leaf and buffer board, and the rubber pad bonds and sets up at the top of hydraulic cylinder body, and the cushion chamber has been seted up to the inside of rubber pad, and the cushion chamber about both ends are fixed and are provided with the connecting rod, the surface of connecting rod is provided with the spring, and the inside of connecting rod is provided with the fly leaf, the middle part of fly leaf is provided with the movable rod, and the surface that the movable rod runs through the rubber pad is connected with the buffer board.

Preferably, the movable plate is connected with the connecting rod in a sliding mode, the cross section of the movable plate is equal to the area of the inner cross section of the buffer cavity, and the upper end of the movable plate is fixedly connected with the spring.

Preferably, the buffer board is arranged in a circular ring shape, the buffer board and the movable plate form an I-shaped structure through the movable rods, and four groups of the movable rods are arranged on the surface of the rubber pad.

Compared with the prior art, the beneficial effects of the utility model are that: the piston stroke adjusting mechanism for the hydraulic cylinder,

1. the adjusting rod can be rotated to drive the second bevel gear on the surface of the threaded rod to rotate in a meshed manner through the first bevel gear, so that the adjusting plug seat in threaded connection with the threaded rod moves upwards on the clamping groove in the hydraulic cylinder body, the distance between the adjusting plug seat and the piston is convenient to adjust, and the movement stroke of the piston is convenient to adjust;

2. can be through the use of the buffer seat at hydraulic cylinder body top for the inboard movable rod of buffer board slides in the inside inner chamber of rubber pad, makes the inside fly leaf of movable rod extrude the spring on connecting rod surface, and the buffering after the buffer board atress of being convenient for, and then effectual protection piston improves the device's practicality.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the connection structure between the threaded rod and the adjusting plug seat of the present invention;

FIG. 5 is a schematic view of the connection structure of the buffer seat and the buffer plate of the present invention;

fig. 6 is the utility model discloses hydraulic cylinder body and regulation cock seat sectional structure schematic diagram that bows.

In the figure: 1. a hydraulic cylinder block; 2. a piston rod; 3. an oil drainage port; 4. an oil inlet; 5. adjusting a rod; 6. a first helical gear; 7. a second helical gear; 8. a threaded rod; 9. adjusting the plug seat; 10. a piston body; 11. an inner cavity; 12. a buffer seat; 1201. a rubber pad; 1202. a buffer chamber; 1203. a connecting rod; 1204. a spring; 1205. a movable rod; 1206. a movable plate; 1207. a buffer plate; 13. a clamping block; 14. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 4 and fig. 6, the present invention provides a technical solution: a piston stroke adjusting mechanism for a hydraulic cylinder comprises a hydraulic cylinder body 1, an oil drainage port 3 and an oil inlet 4, wherein a piston rod 2 is connected inside the hydraulic cylinder body 1, the oil drainage port 3 is formed above the right side of the hydraulic cylinder body 1, the oil inlet 4 is formed below the right side of the hydraulic cylinder body 1, an adjusting rod 5 is rotatably connected to the front end below the hydraulic cylinder body 1, a first bevel gear 6 is fixed at the inner end of the adjusting rod 5, the first bevel gear 6 below the adjusting rod 5 is meshed with a second bevel gear 7 on the surface of a threaded rod 8, a rotating structure is formed by the threaded rod 8 and the bottom of the inner side of the hydraulic cylinder body 1, the adjusting rod 5 is convenient to rotate, the adjusting rod 5 drives the threaded rod 8 to rotate, the threaded rod 8 is arranged below the inner side of the hydraulic cylinder body 1, the lower end of the threaded rod 8 is fixed with a second helical gear 7, an adjusting plug seat 9 is arranged below the threaded rod 8, the adjusting plug seat 9 is in threaded connection with the threaded rod 8, a clamping block 13 is welded on the surface of the adjusting plug seat 9, the adjusting plug seat 9 forms a tightly-attached sliding structure with a clamping groove 14 formed in the inner side surface of the hydraulic cylinder body 1 through the clamping block 13, the threaded rod 8, the piston body 10 and an inner cavity 11 formed in the middle of the piston rod 2 are of a sealed sliding structure, the adjusting plug seat 9 in threaded connection with the threaded rod 8 can be driven through the threaded rod 8, so that the clamping block 13 on the surface of the adjusting plug seat 9 slides on the clamping groove 14 in the hydraulic cylinder body 1, the distance between the piston body 10 and the adjusting plug seat 9 can be conveniently adjusted, and the movement range of the piston rod 2 can be further adjusted;

referring to fig. 2, 3 and 5, a piston body 10 is fixed at the end of a piston rod 2, an inner cavity 11 is formed in the middle of the piston body 10 and the piston rod 2, a buffer seat 12 is adhered above a hydraulic cylinder body 1, a slot 14 is formed in the side surface of the interior of the hydraulic cylinder body 1, the buffer seat 12 includes a rubber pad 1201, a buffer cavity 1202, a connecting rod 1203, a spring 1204, a movable rod 1205, a movable plate 1206 and a buffer plate 1207, the rubber pad 1201 is adhered to the top of the hydraulic cylinder body 1, the buffer cavity 1202 is formed in the rubber pad 1201, connecting rods 1203 are fixedly arranged at the left end and the right end of the buffer cavity 1202, the spring 1204 is arranged on the surface of the connecting rod 1203, the movable plate 1206 is arranged in the interior of the connecting rod 1203, the movable rod 1205 is arranged in the middle of the movable plate 1206, and the movable rod 1205 penetrates through the surface of the rubber pad 1201 and is connected with the buffer plate 1207, the connection mode of the movable plate 1206 and the connecting rod 1203 is sliding connection, the cross section of the movable plate 1206 is equal to the area of the inner cross section of the buffer cavity 1202, the upper end of the movable plate 1206 is fixedly connected with the spring 1204, the movable plate 1206 can slide in the buffer cavity 1202 inside the rubber pad 1201 conveniently, the buffer plate 1207 is arranged in a circular ring shape, the buffer plate 1207 and the movable plate 1206 form an I-shaped structure through the movable rod 1205, four groups of the movable rods 1205 are arranged on the surface of the rubber pad 1201, the buffer plate 1207 can drive the movable rods to slide on the rubber pad 1201 conveniently, the use of the movable plate 1205 and the spring 1204 is matched, and the buffer effect of the device on the piston body 10 is improved conveniently.

The working principle is as follows: firstly, when the hydraulic cylinder is used, the hydraulic cylinder is installed on a machine to be used, so that the hydraulic cylinder can be used, when the stroke of an internal piston needs to be adjusted to change the moving range of a piston rod 2 on the hydraulic cylinder, the adjusting rod 5 can be rotated to enable the adjusting rod 5 to drive a second bevel gear 7 on the surface of a threaded rod 8 to be meshed through a first bevel gear 6, so that the threaded rod 8 rotates inside a hydraulic cylinder body 1, further an adjusting plug seat 9 in threaded connection with the threaded rod moves upwards under the limiting action of a clamping block 13 and a clamping groove 14, further the distance between a piston body 10 and the adjusting plug seat 9 is convenient to adjust, and the moving range of the piston rod 2 is changed;

the inside top of this hydraulic cylinder body 1 is fixed with the cushion socket 12, when piston body 10 upward movement, can contact with buffer board 1207, and then make buffer board 1207 drive movable rod 1205 and movable plate 1206 upward movement, make movable plate 1206 press the spring 1204 on the inside movable rod 1205 of the inside cushion chamber 1202 of rubber pad 1201, the cross section of this movable plate 1206 equals with the inside cross section of cushion chamber 1202, this piston body 10 of convenient effectual buffering, improve the protection effect of piston body 10, this is the theory of use that is used for piston stroke adjustment mechanism for pneumatic cylinder, and the content that does not make detailed description in this description all belongs to the known prior art of the professional skilled in the art in this field.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be used for piston stroke adjustment mechanism for pneumatic cylinder, includes hydraulic cylinder body (1), draining mouth (3) and oil inlet (4), its characterized in that: the hydraulic cylinder body (1) is internally connected with a piston rod (2), an oil drainage port (3) is formed in the upper portion of the right side of the hydraulic cylinder body (1), an oil inlet (4) is formed in the lower portion of the right side of the hydraulic cylinder body (1), the front end of the lower portion of the hydraulic cylinder body (1) is rotatably connected with an adjusting rod (5), a first bevel gear (6) is fixed to the inner end of the adjusting rod (5), a threaded rod (8) is arranged below the inner side of the hydraulic cylinder body (1), a second bevel gear (7) is fixed to the lower end of the threaded rod (8), an adjusting plug seat (9) is arranged below the threaded rod (8), a piston body (10) is fixed to the tail end of the piston rod (2), an inner cavity (11) is formed in the middle portions of the piston body (10) and the piston rod (2), a buffer seat (12) is bonded to the upper portion of the hydraulic cylinder body (1), and a clamping groove (14) is formed in the inner side face of the hydraulic cylinder body (1).

2. A piston stroke adjustment mechanism for a hydraulic cylinder according to claim 1, wherein: adjust first helical gear (6) and second helical gear (7) intermeshing on threaded rod (8) surface of pole (5) below, and the inboard bottom of threaded rod (8) and hydraulic cylinder body (1) constitutes rotating-structure.

3. A piston stroke adjustment mechanism for a hydraulic cylinder according to claim 1, wherein: the connecting mode of adjusting plug seat (9) and threaded rod (8) is threaded connection, and the skin weld of adjusting plug seat (9) has fixture block (13), adjusts plug seat (9) and constitutes the sliding construction of closely laminating through fixture block (13) and draw-in groove (14) that hydraulic cylinder body (1) inside side was seted up, and threaded rod (8) and inner chamber (11) that piston body (10) and piston rod (2) middle part were seted up are sealed sliding construction.

4. A piston stroke adjustment mechanism for a hydraulic cylinder according to claim 1, wherein: buffer seat (12) include rubber pad (1201), cushion chamber (1202), connecting rod (1203), spring (1204), movable rod (1205), fly leaf (1206) and buffer board (1207), and rubber pad (1201) bonding setting is at the top of hydraulic cylinder body (1), cushion chamber (1202) have been seted up to the inside of rubber pad (1201), and both ends are fixed to be provided with connecting rod (1203) about cushion chamber (1202), the surface of connecting rod (1203) is provided with spring (1204), and the inside of connecting rod (1203) is provided with fly leaf (1206), the middle part of fly leaf (1206) is provided with movable rod (1205), and the surface that rubber pad (1201) was run through in movable rod (1205) is connected with buffer board (1207).

5. A piston stroke adjustment mechanism for a hydraulic cylinder according to claim 4, wherein: the movable plate (1206) is connected with the connecting rod (1203) in a sliding mode, the cross section of the movable plate (1206) is equal to the area of the inner cross section of the buffer cavity (1202), and the upper end of the movable plate (1206) is fixedly connected with the spring (1204).

6. A piston stroke adjustment mechanism for a hydraulic cylinder according to claim 4, wherein: buffer board (1207) are the ring shape and set up, and buffer board (1207) pass through movable rod (1205) and constitute "worker" font structure with fly leaf (1206), and movable rod (1205) are provided with four groups on the surface of rubber pad (1201).