CN217873550U

CN217873550U - Sealing element for multistage hydraulic oil cylinder

Info

Publication number: CN217873550U
Application number: CN202222220468.4U
Authority: CN
Inventors: 曲国通
Original assignee: Hebei Hanneng Mining Machinery Accessories Co ltd
Current assignee: Hebei Hanneng Mining Machinery Accessories Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-11-22
Anticipated expiration: 2032-08-23

Abstract

The utility model belongs to the technical field of hydraulic cylinder, especially, be a sealing member for multistage hydraulic cylinder, it is comparatively troublesome when leading to needing to change the seal cover to traditional integral cylinder head design, the inconvenient problem that just consumes with high costs of operation, the scheme as follows now is proposed, it includes the cylinder head, a serial communication port, the left end fixed mounting of cylinder head has the cylinder, the square groove has been seted up in the left side of cylinder head, slidable mounting has the cylinder cap in the square groove, the circular slot has been seted up in the left side of square groove, the left side fixed mounting of cylinder cap has the piston rod, the piston rod runs through in the circular slot extends to the cylinder, vertical groove has all been seted up to cylinder cap top and bottom, and two vertical inslot equal slidable mounting have the cardboard, the draw-in groove has all been seted up on the top inner wall of square groove and the bottom inner wall. The utility model has the advantages of reasonable design, realize removing the fixed of cylinder cap through the cooperation of pull rod and cardboard to be convenient for take out the change to the seal cover in the cylinder head, do benefit to and continuously use, the reliability.

Description

Sealing element for multistage hydraulic oil cylinder

Technical Field

The utility model relates to a hydraulic cylinder technical field especially relates to a sealing member for multistage hydraulic cylinder.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion. The hydraulic system is widely applied to hydraulic systems of various machines. The hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device.

In a hydraulic oil cylinder, a sealing element needs to be replaced frequently, when a sealing sleeve needs to be replaced due to the traditional integral cylinder head design, the whole cylinder head needs to be detached, then the sealing element is taken out, the sealing element is also troublesome to take out, a worker needs to have certain operation skill, the operation is inconvenient, and the cost is high, so that the sealing element for the multistage hydraulic oil cylinder is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a in order to solve the problem that proposes in the above-mentioned background art, and the sealing member who proposes is used for multistage hydraulic cylinder.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a sealing member for multistage hydraulic cylinder, includes the jar head, the left end fixed mounting of jar head has the cylinder, the square groove has been seted up in the left side of jar head, slidable mounting has the cylinder cap in the square groove, the circular slot has been seted up in the left side of square groove, the left side fixed mounting of cylinder cap has the piston rod, the piston rod runs through in the circular slot extends to the cylinder, vertical groove has all been seted up to cylinder cap top and bottom, and two vertical inslot equal slidable mounting have the cardboard, all seted up the draw-in groove on the top inner wall of square groove and the bottom inner wall, two cardboards clamp with the draw-in groove activity that corresponds respectively, and the horizontal groove has all been seted up to the right side of two wedge cardboards, and two horizontal inslots equal slidable mounting have the bayonet lock, and the right side fixed mounting of bayonet lock has the pull rod, the right-hand member fixed mounting of pull ring of pull rod has all seted up the constant head tank on the left inner wall of two vertical grooves, and two bayonet locks clamp with the activity that corresponds respectively, have seted up the slide opening on the left side inner wall of two vertical grooves, the left end of pull rod runs through corresponding slide opening and extends outside the jar head.

Preferably, the limiting grooves are formed in the inner wall of the bottom of one side, close to each other, of each vertical groove, the limiting rods are fixedly mounted on one side, close to each other, of each clamping plate, and the limiting rods are slidably mounted in the corresponding limiting grooves.

Preferably, the auxiliary groove has all been seted up to the left and right sides of spacing groove, the equal fixed mounting in the left and right sides of gag lever post has the baffle, baffle slidable mounting is in the auxiliary groove that corresponds.

Preferably, two return springs are fixedly mounted on one side, close to each other, of each clamping plate, and the return springs are fixedly connected with the inner walls of the corresponding vertical grooves.

Preferably, the right side of the bayonet lock is fixedly provided with a limiting spring, and the right end of the limiting spring is fixedly connected with the inner wall of the right side of the corresponding transverse groove.

Preferably, a sealing sleeve is arranged in the circular groove, and the piston rod is slidably mounted in the sealing sleeve.

In the utility model, the sealing element for the multistage hydraulic cylinder is characterized in that two pull rings are controlled to move towards the right side, the two pull rings drive the clamping pins to be separated from the corresponding positioning grooves through the corresponding pull rings, so that the fixation of the two clamping plates is released, the two pull rings are pulled to move towards one side close to each other, so that the two clamping plates are driven to move towards one side close to each other and compress the reset spring, the two clamping plates are separated from the corresponding clamping grooves, the fixation of the cylinder cover is separated, and the sealing sleeve is convenient to take out;

in the utility model, the sealing element for the multistage hydraulic cylinder is characterized in that the two clamping plates move towards one side away from each other under the action of the reset spring and are clamped into the corresponding clamping grooves to fix the cylinder cover, and the two clamping pins are clamped into the corresponding positioning grooves to fix the two clamping plates under the action of the limit spring, so that the stability of the fixed installation of the piston rod is improved;

the utility model has the advantages of reasonable design, realize removing the fixed of cylinder cap through the cooperation of pull rod and cardboard to be convenient for take out the change to the seal cover in the cylinder head, do benefit to and continuously use, the reliability is high.

Drawings

Fig. 1 is a schematic perspective view of a sealing member for a multistage hydraulic cylinder according to the present invention;

fig. 2 is a schematic cross-sectional structural view of a sealing member for a multistage hydraulic cylinder according to the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

In the figure: 1. a cylinder head; 2. a cylinder barrel; 3. a cylinder cover; 4. a piston rod; 5. a sealing sleeve; 6. a vertical groove; 7. clamping a plate; 8. a card slot; 9. a transverse slot; 10. a bayonet lock; 11. a pull rod; 12. a pull ring; 13. positioning a groove; 14. a slide hole; 15. a limiting groove; 16. a limiting rod; 17. an auxiliary groove; 18. a baffle plate; 19. a return spring; 20. and a limiting spring.

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.

Referring to fig. 1-3, a sealing member for multistage hydraulic cylinder, including cylinder head 1, cylinder 2 is fixedly mounted at the left end of cylinder head 1, the square groove has been seted up on the left side of cylinder head 1, slidable mounting has cylinder cap 3 in the square groove, the circular groove has been seted up in the left side of square groove, the left side fixed mounting of cylinder cap 3 has piston rod 4, piston rod 4 runs through the circular groove and extends to in the cylinder 2, vertical groove 6 has all been seted up at cylinder cap 3 top and bottom, equal slidable mounting has cardboard 7 in two vertical grooves 6, draw-in groove 8 has all been seted up on the top inner wall of square groove and the bottom inner wall, two cardboards 7 clamp with the activity of corresponding draw-in groove 8 respectively, horizontal groove 9 has all been seted up on the right side of two wedge cardboard 7, equal slidable mounting has bayonet lock 10 in two horizontal grooves 9, the right side fixed mounting of bayonet lock 10 has pull rod 11, the right-hand member fixed mounting of pull rod 11 has pull ring 12, constant head 13 has all been seted up on the left inner wall of two vertical grooves 6, two bayonet locks 10 clamp respectively with the activity of corresponding constant head 13, smooth hole 14 has been seted up on the left side inner wall of two vertical grooves 6, the left end of pull rod 11 runs through to extend to the cylinder head 1.

The utility model discloses in, spacing groove 15 has all been seted up on the one side bottom inner wall that two vertical grooves 6 are close to each other, and one side fixed mounting that two cardboard 7 are close to each other has

gag lever post

16, and 16 slidable mounting of gag lever posts play the effect of direction in the spacing groove 15 that corresponds to cardboard 7.

The utility model discloses in, auxiliary groove 17 has all been seted up to the left and right sides of spacing groove 15, and the equal fixed mounting in the left and right sides of gag lever post 16 has

baffle

18, and 18 slidable mounting of baffle avoid gag lever post 16 to break away from corresponding spacing groove 15 in the auxiliary groove 17 that corresponds.

The utility model discloses in, the equal fixed mounting in one side that two cardboard 7 are close to each other has two reset spring 19, and reset spring 19 plays the effect that resets to cardboard 7 with the inner wall fixed connection of the vertical groove 6 that corresponds.

The utility model discloses in, bayonet lock 10's right side fixed mounting has spacing spring 20, and spacing spring 20's right-hand member and the right side inner wall fixed connection of the transverse groove 9 that corresponds play supplementary effect to bayonet lock 10.

The utility model discloses in, be provided with seal cover 5 in the circular slot, 4 slidable mounting of piston rod play sealed effect to piston rod 4 in seal cover 5.

The utility model discloses in, when using, move to the right side through controlling two pull rings 12, two pull rings 12 drive two bayonet locks 10 through the pull rod 11 that corresponds respectively and move to the right side and compress spacing spring 20, make two bayonet locks 10 break away from corresponding constant head tank 13, thereby break away from the fixed to two cardboard 7, then move to one side that is close to each other through pulling two pull rings 12, two pull rings 12 drive two cardboard 7 through corresponding pull rod 11 respectively and move to one side that is close to each other and compress return spring 19, make two cardboard 7 break away from corresponding draw-in groove 8, thereby break away from the fixed to cylinder cap 3, then together take out cylinder cap 3 together with piston rod 4 through two pull rings 12 of pulling, thereby be convenient for take out seal cover 5, after the clearance is accomplished, again seal cover 5, piston rod 4 clamps in the circular slot in proper order, two cardboard 7 reset to the one side motion that keeps away from each other and block into corresponding draw-in groove 8 and fix cylinder cap 3 under return spring 19's effect, two bayonet locks 10 are fixed piston rod 7 are gone into corresponding constant head tank 13 in the effect of return spring 20 down, thereby improve the fixed mounting stability to piston rod 4.

Claims

1. The utility model provides a sealing member for multistage hydraulic cylinder, includes the cylinder end, its characterized in that, the left end fixed mounting of cylinder end has the cylinder, the square groove has been seted up in the left side of cylinder end, slidable mounting has the cylinder cap in the square groove, the circular slot has been seted up in the left side of square groove, the left side fixed mounting of cylinder cap has the piston rod, the piston rod runs through the circular slot and extends to in the cylinder, vertical groove has all been seted up to cylinder cap top and bottom, two vertical inslot equal slidable mounting have the cardboard, the draw-in groove has all been seted up on the top inner wall of square groove and the bottom inner wall, and two cardboards clamp with the draw-in groove activity that corresponds respectively, and the transverse groove has all been seted up to the right side of two wedge cardboards, and two transverse inslots equal slidable mounting have the bayonet lock, and the right side fixed mounting of bayonet lock has the pull rod, the right-hand member fixed mounting of pull rod has the pull ring, has all seted up the constant head tank on the left inner wall of two vertical grooves, and two bayonet locks clamp activity respectively with the constant head tank that corresponds have been seted up on the left side inner wall of two vertical grooves, the left end of pull rod has run through the corresponding slide opening and extends to outside the cylinder end.

2. The sealing element for the multistage hydraulic oil cylinder as claimed in claim 1, wherein the inner wall of the bottom of one side, close to each other, of the two vertical grooves is provided with a limiting groove, a limiting rod is fixedly mounted on one side, close to each other, of the two clamping plates, and the limiting rods are slidably mounted in the corresponding limiting grooves.

3. The sealing element for the multistage hydraulic oil cylinder as claimed in claim 2, wherein auxiliary grooves are formed in the left side and the right side of the limiting groove, baffles are fixedly mounted on the left side and the right side of the limiting rod, and the baffles are slidably mounted in the corresponding auxiliary grooves.

4. The seal for a multistage hydraulic ram of claim 1, wherein two return springs are fixedly mounted on each of the sides of the two clamping plates adjacent to each other, the return springs being fixedly connected to the inner walls of the corresponding vertical grooves.

5. The sealing element for the multistage hydraulic oil cylinder as claimed in claim 1, wherein a limiting spring is fixedly mounted on the right side of the clamping pin, and the right end of the limiting spring is fixedly connected with the right inner wall of the corresponding transverse groove.

6. A seal for a multistage hydraulic ram as claimed in claim 1 in which a gland is provided in the circular groove and the piston rod is slidably mounted in the gland.