CN222950158U

CN222950158U - Damping type hydraulic cylinder

Info

Publication number: CN222950158U
Application number: CN202422225029.1U
Authority: CN
Inventors: 刘彦君; 伍林虎
Original assignee: CHENGDU CHENGGANG HYDRAULIC EQUIPMENT MANUFACTURING CO LTD
Current assignee: CHENGDU CHENGGANG HYDRAULIC EQUIPMENT MANUFACTURING CO LTD
Priority date: 2024-09-11
Filing date: 2024-09-11
Publication date: 2025-06-06
Anticipated expiration: 2034-09-11

Abstract

The utility model discloses a shock-absorbing hydraulic cylinder, which relates to the field of hydraulic cylinders and comprises a mounting plate, wherein the inner sides of the mounting plate are fixedly connected with a cylinder shell, a cylinder piston is arranged in the cylinder shell, the upper end of the cylinder piston is fixedly connected with a piston rod, and the other end of the piston rod penetrates through the cylinder shell and is fixedly connected with a top plate. According to the utility model, by adopting the structure, the adjusting rod moves on the surface of the guide rod under the action of the moving block while the hydraulic oil cylinder moves, the protective spring contracts when the moving block moves, so that vibration generated by the hydraulic oil cylinder can be counteracted, the vibration effect can be counteracted further under the action of the plurality of groups of moving grooves and the protective spring, so that the protective effect of the protective base is better, and meanwhile, the elastic force generated by the protective spring can be counteracted under the action of the damper, so that the hydraulic oil cylinder after the vibration reduction is completed can return to the original position stably.

Description

Damping type hydraulic cylinder

Technical Field

The utility model belongs to the field of hydraulic cylinders, and particularly relates to a damping type hydraulic cylinder.

Background

The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). The device has simple structure and reliable operation. When it is used to realize reciprocating motion, it can eliminate speed reducer, and has no transmission clearance and smooth motion, so that it can be widely used in hydraulic systems of various machines. The hydraulic cylinder consists of cylinder barrel, cylinder cover, piston rod, sealing unit, buffering unit and exhausting unit, and other units are essential.

According to the chinese patent of bulletin number "CN219492761U", a shock-absorbing hydraulic cylinder is disclosed, which relates to the technical field of hydraulic cylinder, a bottom plate is fixedly installed at one end of a cylinder body, an oil port No. one is fixedly installed at the outer wall of the bottom plate, an oil port No. two is fixedly installed at the top of the outer wall of the cylinder body, a buffer sleeve is fixedly installed at the top of the inner wall of the cylinder body, a through hole is formed in the inner side of the buffer sleeve, a piston rod is slidably connected to the inner side of the top of the cylinder body, and an installation box is movably sleeved at one end of the outer wall of the piston rod. According to the utility model, when the piston rod is vibrated by the first spring and the second spring, vibration is isolated to a certain extent by extrusion, then the piston is buffered when the piston is extended and retracted by the rubber block at one side of the piston, and the effect of improving the elastic capability of the piston by utilizing the third spring in the rubber block is achieved, so that the problem of short service life of the shock-absorbing hydraulic cylinder is solved;

According to the structure, the piston rod, the limiting disc, the first spring, the telescopic rod, the second spring, the rubber block and the third spring are matched with each other, one end of the piston rod is used for pushing an object, then the piston rod is used for pushing the piston rod, the limiting disc on the outer wall of the piston rod extrudes the first spring, direct impact on the object is reduced, when the hydraulic cylinder is used, hydraulic oil is conveyed inside the hydraulic cylinder and the driving rod is pushed to work in the process, the cylinder barrel and the driving rod shake, and due to the fact that no corresponding protection mechanism exists on the outer side of the hydraulic cylinder, the outer wall of the cylinder barrel is very easy to contact with the object with higher hardness in the external environment, such as a metal shell and the placement ground, in the contact process, the cylinder barrel can be damaged under the vibration action generated by the outer wall of the cylinder barrel and the reverse vibration action generated by contact, and the transmission influence can be caused on the cylinder barrel, and the service life of the whole hydraulic cylinder barrel is shortened.

Disclosure of utility model

The utility model aims to solve the problems in the background art and provides a damping hydraulic cylinder.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a shock-absorbing hydraulic cylinder, includes the mounting panel, the equal fixedly connected with hydro-cylinder shell of inboard of mounting panel, the inside of hydro-cylinder shell is provided with the hydro-cylinder piston, the upper end fixedly connected with piston rod of hydro-cylinder piston, the other end of piston rod runs through hydro-cylinder shell fixedly connected with roof, the equal fixedly connected with damper in inboard of mounting panel, damper runs through the mounting panel, the lower extreme of mounting panel is provided with the protection base, the protection base includes the protection frame, a plurality of movable slots have all been seted up to the inside of protection frame, the equal sliding connection in inside of movable slot has the movable block, the inside fixedly connected with guide bar of movable slot, movable block and guide bar sliding grafting each other, the upper end rotation of movable block is connected with the regulation pole, the upper end of regulation pole is all rotated and is connected with the fixed plate, fixed plate and mounting panel fixedly connected with, the inside fixedly connected with protection spring of movable slot, the other end and the movable block mutual fixedly connected with attenuator between fixed plate and the protection shell.

As the preferred technical scheme, damping subassembly includes the shock attenuation loop bar of fixed connection in the mounting panel upper end, the other end of shock attenuation loop bar runs through the mounting panel, the inside fixedly connected with damping spring of shock attenuation loop bar, damping spring's the other end fixedly connected with shock attenuation movable rod, the other end fixedly connected with connecting plate of shock attenuation movable rod, connecting plate's outside is through connecting rod and roof fixed connection.

As the preferable technical scheme, the upper end fixedly connected with auxiliary spring of mounting panel, auxiliary spring is located the outside of shock attenuation loop bar and shock attenuation movable rod, the other end and the connecting plate mutual fixed connection of shock attenuation spring.

As the preferable technical scheme, the inside of hydro-cylinder shell all fixedly connected with a plurality of buffer rods, the buffer rod runs through the hydro-cylinder piston and with hydro-cylinder piston slip grafting, the inside lower extreme fixedly connected with buffer spring of hydro-cylinder shell, buffer spring's the other end and the lower extreme fixed connection of hydro-cylinder piston.

As the preferable technical scheme, the upper end fixedly connected with buffering extension spring of hydro-cylinder shell, buffering extension spring is provided with a plurality of, buffering extension spring sets up in the outside of buffer rod, the other end of buffering extension spring and the upper end fixed connection of hydro-cylinder piston.

As the preferred technical scheme, the both sides of fixed plate all with the mutual sliding connection in both sides of protection frame, the both sides of fixed plate all fixedly connected with spacing slider, spacing spout has all been seted up to the inboard of protection frame, spacing spout and the mutual sliding connection of spacing slider.

As the preferred technical scheme, the equal fixedly connected with installation limit in both sides of mounting panel, the equal fixedly connected with extension board in both sides of fixed plate, the installation through-hole has all been seted up to extension board and the surface on installation limit, install the inside grafting of through-hole has the installation screw, the surface threaded connection of installation screw has the installation nut.

In summary, the utility model has the following advantages:

According to the utility model, when the hydraulic oil cylinder is used by the arranged protection base, the hydraulic oil cylinder moves towards the inside of the protection frame when the hydraulic oil cylinder vibrates, the adjusting rod moves on the surface of the guide rod under the action of the moving block when the hydraulic oil cylinder moves, the protection spring contracts when the moving block moves, so that the vibration generated by the hydraulic oil cylinder can be counteracted, the vibration effect can be counteracted further under the action of a plurality of groups of moving grooves and the protection spring, the protection effect of the protection base is better, and the elastic force generated by the protection spring can be counteracted under the action of the damper, so that the hydraulic oil cylinder after vibration reduction can return to the original position stably;

Second, through the damper that sets up, firstly when carrying out the shock attenuation through the piston rod, the piston rod promotes the hydro-cylinder piston and removes in the inside of hydro-cylinder shell and make the piston rod can reach the shock attenuation effect, and can promote the effect to shock attenuation movable rod under the effect of connecting rod and connecting plate under the removal of piston rod, however can carry out further shock attenuation effect under shock attenuation spring and auxiliary spring's effect when promoting shock attenuation movable rod, thereby make can increase shock attenuation effect when hydraulic cylinder when using, and a plurality of buffer rods cooperation buffer spring that set up in the hydro-cylinder shell can further reach shock attenuation effect, and can further offset the shock attenuation effect under the effect of buffering extension spring.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the cylinder housing of the present utility model;

FIG. 3 is a schematic view of the internal structure of the cylinder housing of the present utility model;

fig. 4 is a schematic structural view of the protective base of the present utility model.

Reference numeral 1, a mounting plate; 2, an oil cylinder shell, 3, an oil cylinder piston, 4, a piston rod, 5, a protection base, 51, a protection frame, 52, a moving groove, 53, a guide rod, 54, a moving block, 55, a protection spring, 56, an adjusting rod, 57, a fixed plate, 6, a shock absorption assembly, 61, a shock absorption sleeve rod, 62, a shock absorption spring, 63, a shock absorption movable rod, 64, a connecting plate, 65, a connecting rod, 66, an auxiliary spring, 7, a buffer rod, 8, a buffer spring, 9, a buffer tension spring, 10, a top plate, 11, a mounting edge, 12, a mounting through hole, 13, an extension plate, 14, a mounting screw, 15, a mounting nut, 16, a limit sliding block, 17 and a limit sliding groove.

Detailed Description

Examples

Referring to fig. 1 to 4, a shock-absorbing hydraulic cylinder of this embodiment includes a mounting plate 1, the inboard of mounting plate 1 is all fixedly connected with hydro-cylinder shell 2, the inside of hydro-cylinder shell 2 is provided with hydro-cylinder piston 3, the upper end fixedly connected with piston rod 4 of hydro-cylinder piston 3, the other end of piston rod 4 runs through hydro-cylinder shell 2 fixedly connected with roof 10, the inboard of mounting plate 1 is all fixedly connected with damper 6, damper 6 runs through mounting plate 1, the lower extreme of mounting plate 1 is provided with protection base 5, protection base 5 includes protection frame 51, a plurality of movable grooves 52 have all been seted up to the inside of protection frame 51, the inside of movable groove 52 is all slidingly connected with movable block 54, the inside fixedly connected with guide bar 53 of movable groove 52, movable block 54 and guide bar 53 are mutually slidingly pegged graft, the upper end rotation of movable block 54 is connected with regulation pole 56, the upper end of regulation pole 56 is all rotated and is connected with fixed plate 57, fixed plate 57 and mounting plate 1 is fixedly connected with, the inside of movable groove 52 is fixedly connected with protection spring 55, the other end of protection spring 55 and movable block 54 are fixedly connected with each other between fixed plate 57 and the protection shell.

Referring to fig. 1 to 3, the damper assembly 6 includes a damper rod 61 fixedly connected to an upper end of the mounting plate 1, the other end of the damper rod 61 penetrates the mounting plate 1, a damper spring 62 is fixedly connected to an inside of the damper rod 61, the other end of the damper spring 62 is fixedly connected to a damper movable rod 63, the other end of the damper movable rod 63 is fixedly connected to a connecting plate 64, an outer side of the connecting plate 64 is fixedly connected to the top plate 10 through a connecting rod 65, an auxiliary spring 66 is fixedly connected to an upper end of the mounting plate 1, the auxiliary spring 66 is located on the outer sides of the damper rod 61 and the damper movable rod 63, the other end of the damper spring 62 is fixedly connected to each other, and the damper movable rod 63 can be pushed by the action of the connecting rod 65 and the connecting plate 64 under the movement of the piston rod 4, however, further damping effect can be performed by the action of the damper spring 62 and the auxiliary spring 66 when the damper movable rod 63 is pushed, so that the damping effect can be increased when the hydraulic cylinder is used.

Referring to fig. 3, the inside of the cylinder housing 2 is fixedly connected with a plurality of buffer rods 7, the buffer rods 7 penetrate through the cylinder piston 3 and are in sliding connection with the cylinder piston 3, the lower end of the inside of the cylinder housing 2 is fixedly connected with a buffer spring 8, the other end of the buffer spring 8 is fixedly connected with the lower end of the cylinder piston 3, the upper end of the cylinder housing 2 is fixedly connected with a buffer tension spring 9, the buffer tension springs 9 are arranged in a plurality, the buffer tension springs 9 are arranged on the outer sides of the buffer rods 7, the other ends of the buffer tension springs 9 are fixedly connected with the upper end of the cylinder piston 3, and the plurality of buffer rods 7 arranged in the cylinder housing 2 are matched with the buffer spring 8 to further achieve a shock absorption effect, and the shock absorption effect can be further counteracted under the action of the buffer tension springs 9.

Referring to fig. 4, both sides of the fixing plate 57 are slidably connected with both sides of the protection frame 51, both sides of the fixing plate 57 are fixedly connected with the limit sliding blocks 16, the inner side of the protection frame 51 is provided with limit sliding grooves 17, the limit sliding grooves 17 are slidably connected with the limit sliding blocks 16, and the fixing plate 57 can be limited through the limit sliding grooves 17 and the limit sliding blocks 16, so that the phenomenon that the adjusting rod 56 is broken due to poor stability of the fixing plate 57 in use is avoided.

Referring to fig. 2 and 4, the mounting plate 1 is fixedly connected with the mounting edge 11 on both sides, the extension plate 13 is fixedly connected with both sides of the fixing plate 57, the mounting through holes 12 are formed in the surfaces of the extension plate 13 and the mounting edge 11, the mounting screws 14 are inserted into the mounting through holes 12, the mounting nuts 15 are connected to the outer surfaces of the mounting screws 14 in a threaded manner, the mounting plate 1 is placed at the upper end of the fixing plate 57, the mounting edge 11 and the extension edge are opposite to each other, and then the mounting screws 14 penetrate through the mounting through holes 12 and finally are fixed through the mounting nuts 15, so that the hydraulic oil cylinder can be mounted.

The hydraulic cylinder has the advantages that the mounting plate 1 is placed at the upper end of the fixing plate 57 to enable the mounting edge 11 and the extending edge to be opposite to each other, the mounting screw 14 penetrates through the mounting through hole 12 and is finally fixed through the mounting nut 15, so that the hydraulic cylinder can be mounted, the hydraulic cylinder can be used, firstly, when the piston rod 4 is used for damping, the piston rod 4 pushes the cylinder piston 3 to move in the cylinder shell 2, so that the piston rod 4 can achieve the damping effect, the damping movable rod 63 can be pushed by the action of the connecting rod 65 and the connecting plate 64 under the movement of the piston rod 4, however, the damping effect can be further carried out under the action of the damping spring 62 and the auxiliary spring 66 when the damping movable rod 63 is pushed, the damping effect can be increased when the hydraulic cylinder is used, the hydraulic cylinder moves towards the inside of the protection frame 51 when the hydraulic cylinder moves, the adjusting rod 56 moves under the action of the moving block 54, the protection spring 55 contracts when the moving block 54 moves, so that the protection spring 55 can shrink to enable the protection spring 55 to return to the action of the protection frame, the hydraulic cylinder can be offset the action of the protection spring 55, and the protection base can be further offset the action of the protection spring 55, and the protection effect can be further offset the action of the protection effect can be further offset, and the protection effect of the protection effect can be balanced.

Claims

1. The damping hydraulic cylinder is characterized by comprising a mounting plate (1), wherein the inner sides of the mounting plate (1) are fixedly connected with a cylinder shell (2), the inside of the cylinder shell (2) is provided with a cylinder piston (3), the upper end of the cylinder piston (3) is fixedly connected with a piston rod (4), the other end of the piston rod (4) penetrates through the cylinder shell (2) and is fixedly connected with a top plate (10), the inner sides of the mounting plate (1) are fixedly connected with a damping component (6), the damping component (6) penetrates through the mounting plate (1), the lower end of the mounting plate (1) is provided with a protection base (5), the protection base (5) comprises a protection frame (51), a plurality of moving grooves (52) are formed in the inside of the protection frame (51), moving blocks (54) are all connected in a sliding mode, guide rods (53) are fixedly connected in the inside of the moving grooves (52), the moving blocks (54) are connected with the guide rods (53) in a sliding mode, the upper ends of the moving blocks (54) are rotatably connected with an adjusting rod (56), the upper ends of the moving blocks (54) are fixedly connected with an adjusting rod (57), the inside fixedly connected with protection spring (55) of removal groove (52), the other end and the mutual fixed connection of movable block (54) of protection spring (55), fixedly connected with attenuator between fixed plate (57) and the protecting crust.

2. The damping hydraulic cylinder according to claim 1, wherein the damping component (6) comprises a damping sleeve rod (61) fixedly connected to the upper end of the mounting plate (1), the other end of the damping sleeve rod (61) penetrates through the mounting plate (1), a damping spring (62) is fixedly connected to the inside of the damping sleeve rod (61), a damping movable rod (63) is fixedly connected to the other end of the damping spring (62), a connecting plate (64) is fixedly connected to the other end of the damping movable rod (63), and the outer side of the connecting plate (64) is fixedly connected with the top plate (10) through a connecting rod (65).

3. The shock-absorbing hydraulic cylinder according to claim 2, wherein an auxiliary spring (66) is fixedly connected to the upper end of the mounting plate (1), the auxiliary spring (66) is located on the outer sides of the shock-absorbing sleeve rod (61) and the shock-absorbing movable rod (63), and the other end of the shock-absorbing spring (62) is fixedly connected with the connecting plate (64).

4. The damping hydraulic cylinder according to claim 1, wherein a plurality of buffer rods (7) are fixedly connected to the inside of the cylinder housing (2), the buffer rods (7) penetrate through the cylinder piston (3) and are in sliding connection with the cylinder piston (3), a buffer spring (8) is fixedly connected to the lower end of the inside of the cylinder housing (2), and the other end of the buffer spring (8) is fixedly connected with the lower end of the cylinder piston (3).

5. The damping hydraulic cylinder according to claim 4, wherein the upper end of the cylinder housing (2) is fixedly connected with a plurality of damping tension springs (9), the damping tension springs (9) are arranged on the outer side of the damping rod (7), and the other end of the damping tension springs (9) is fixedly connected with the upper end of the cylinder piston (3).

6. The damping hydraulic cylinder as set forth in claim 1, wherein both sides of the fixing plate (57) are slidably connected with both sides of the protective frame (51), both sides of the fixing plate (57) are fixedly connected with limit sliding blocks (16), both inner sides of the protective frame (51) are provided with limit sliding grooves (17), and the limit sliding grooves (17) are slidably connected with the limit sliding blocks (16).

7. The damping hydraulic cylinder according to claim 1, wherein the two sides of the mounting plate (1) are fixedly connected with mounting edges (11), the two sides of the fixing plate (57) are fixedly connected with extension plates (13), the surfaces of the extension plates (13) and the mounting edges (11) are provided with mounting through holes (12), mounting screws (14) are inserted into the mounting through holes (12), and mounting nuts (15) are connected with the outer surfaces of the mounting screws (14) in a threaded mode.