CN113896073A

CN113896073A - Hydraulic buffer with elastic buffer component

Info

Publication number: CN113896073A
Application number: CN202111109832.3A
Authority: CN
Inventors: 王迪; 杨才俊
Original assignee: Weilong Yicheng Intelligent Technology Jiangsu Co ltd
Current assignee: Weilong Yicheng Intelligent Technology Jiangsu Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-01-07

Abstract

The invention relates to the technical field of buffers and discloses a hydraulic buffer with an elastic buffer component. This hydraulic buffer who carries elastic buffer part, carry out the two-stage buffering through the inside at the inner tube hydraulic pressure, when making the buffer compressed, use elastic buffer to lead earlier, compression buffer spring takes place deformation gradually, after compression buffer spring is in completely by the compression state, use hydraulic buffer to lead this moment, piston rod and piston continue the downstream, the clearance messenger that overflows through the control inner tube produces the system and stops the effort to the car, the process of elastic buffer to hydraulic buffer is realized following in the two-stage buffering, can obtain better buffering effect, make the system that stops the effort to the car more tend to linear change, it is more steady.

Description

Hydraulic buffer with elastic buffer component

Technical Field

The invention relates to the technical field of buffers, in particular to a hydraulic buffer with an elastic buffer component.

Background

An elevator hydraulic buffer is a very important safety component of an elevator, and is usually arranged at the bottom of an elevator car, when the elevator exceeds a bottom floor, the car impacts the hydraulic buffer, and the kinetic energy of the elevator is consumed or absorbed by the hydraulic buffer, so that the elevator is safely decelerated until the elevator stops.

The hydraulic damping buffer takes fluid as a working medium, utilizes the viscous damping action of fluid flow to prolong the action time of impact load, converts mechanical energy generated during load impact into pressure energy and heat energy of the fluid, so as to absorb and convert the energy of the impact load, accurately stop mechanical parts with higher motion speed, reduce vibration and noise of the mechanical parts caused by impact, reduce mechanical accidents and prolong the service life of the mechanical parts, therefore, the hydraulic damping buffer has wider application in the fields of engineering machinery, production equipment, harbor machinery, motion equipment and the like.

A hydraulic damping buffer is provided, which comprises a cylinder barrel and a piston rod arranged in the cylinder barrel, a plurality of circular damping holes are discretely distributed on the cylinder barrel along the buffering stroke direction (the moving direction of the piston rod), hydraulic oil is arranged in the cylinder barrel and can realize throttling buffering after passing through the damping holes, when the impact load is suddenly loaded to the piston rod, the hydraulic oil in the cylinder barrel is extruded to flow through the damping holes and the gaps between the piston and the cylinder wall at a high speed, and the buffer effect is realized by utilizing the pressure resistance and the viscosity effect of the hydraulic oil, the buffering force provided by the hydraulic damping buffer can only fluctuate in a small range, so that the conventional hydraulic damping buffer cannot adapt to the working condition with large load difference, and inconvenience is brought to the use of the hydraulic damping buffer.

Disclosure of Invention

The invention provides a hydraulic buffer with an elastic buffer component, which has the advantages of more stable buffering, good buffering effect and convenient use and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a carry hydraulic buffer of elastic buffer part, includes the sleeve, telescopic middle part movable mounting has the piston rod, the upper end fixed mounting of piston rod has the head that hits, the bottom fixedly connected with buffer spring who hits the head, buffer spring's bottom fixed connection is on the sleeve, the bottom fixed mounting of piston rod has the piston, the bottom fixedly connected with reset spring of piston, telescopic inside is equipped with the inner tube, the oil drain hole has been seted up to the lateral wall bottom of inner tube, the oil gallery has been seted up at the lateral wall middle part of inner tube, the gasbag has been cup jointed in the outside of inner tube, the equal fixed mounting in upper and lower both ends of gasbag has the closing plate.

Preferably, the oil inlet pipe is sleeved inside the oil return hole, a cushion block is fixedly mounted on the outer side of the oil inlet pipe, and oil spray pipes are fixedly connected to the upper end and the lower end of the cushion block.

Preferably, the upper end of the collided head is fixedly provided with a silencing sleeve, and the silencing sleeve is a rubber soft sleeve.

Preferably, a sealing cover is fixedly mounted at the upper end of the interior of the sleeve, and a dustproof sleeve, a bearing and pressure storage sponge are arranged in the sealing cover.

Preferably, the gasbag is W form lateral wall, just the quantity of gasbag is two, two the gasbag is installed respectively at the upper and lower both ends of inner tube, the equal fixedly connected with closing plate in upper and lower both ends of gasbag, the closing plate slides with the outer wall of telescopic inner wall and inner tube.

Preferably, the section of the cushion block is Y-shaped, and the cushion block is arranged in the middle of the two air bags.

Preferably, the diameter value of the buffer spring is larger than that of the return spring, and the elastic modulus of the buffer spring is smaller than that of the return spring.

Preferably, an oil filling hole is fixedly installed at the bottom end of the sleeve, and the oil filling hole is embedded in the inner cylinder in a conical mode.

The invention has the following beneficial effects:

1. this hydraulic buffer who carries elastic buffer part, be connected with buffer spring through the middle part at sleeve and amortization cover, buffer spring cup joints in the outside of piston rod, be convenient for receive the striking at the amortization cover, carry out first step buffering through buffer spring, and adopt hydraulic pressure to carry out the two-stage buffering in the inside of inner tube, when making the buffer compressed, use elastic buffer to lead earlier, compression buffer spring takes place deformation gradually, after compression buffer spring is in by the compression state completely, use hydraulic buffer to lead this moment, piston rod and piston continue downstream, the clearance messenger that overflows through the control inner tube produces the braking effort to the car, the process from elastic buffer to hydraulic buffer is realized to the two-stage buffering, can obtain better buffering effect, make the braking effort to the car more tend to linear change, it is more steady.

2. This hydraulic buffer who carries elastic buffering part, inner tube has been cup jointed through in telescopic inside, and oil drain hole and oil gallery have been seted up on the lateral wall of inner tube, and install the gasbag in inner tube and telescopic intermediate layer, the inside packing of gasbag has gas, and the high-elastic material that the gasbag adopted, can absorb the high pressure of load in the hydraulic oil, and compress the inside gas of gasbag, be convenient for improve the inside buffering effect of buffer, and the gasbag is folded in the inside of sleeve and inner tube and is placed, be convenient for deform.

3. This hydraulic buffer who carries elastic buffering part, be connected with the cushion through the middle part at the oil gallery, the middle part at two gasbags is installed to the cushion, and install and spout the oil pipe, and the oil gallery is for encircleing the lateral wall a week of seting up at the inner tube, and quantity is eight, through selecting four packing installations that advance the oil pipe in eight oil galleries as the liquid outlet, and regard other four as the oil return runner, and advance the oil pipe and spout the oil pipe and have further control gap pressure of advancing to the inside hydraulic pressure of inner tube, be convenient for increase hydraulic pressure, increase the buffering effect of buffer.

Drawings

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

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

FIG. 3 is an exploded view of the inner barrel of the present invention;

FIG. 4 is a schematic view of a bladder of the present invention;

FIG. 5 is a schematic view of structure A of the present invention.

In the figure: 1. a sleeve; 2. a piston rod; 3. a collided head; 4. a silencing sleeve; 5. a buffer spring; 6. a piston; 7. sealing the cover; 8. a dust-proof sleeve; 9. a bearing; 10. pressure-accumulating sponge; 11. a return spring; 12. an inner barrel; 13. an oil drain hole; 14. an oil return hole; 15. cushion blocks; 16. an oil inlet pipe; 17. an oil spray pipe; 18. an air bag; 19. a sealing plate; 20. and an oil filling hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a hydraulic buffer with elastic buffer component comprises a sleeve 1, an oil injection hole 20 is fixedly installed at the bottom end of the sleeve 1, the oil injection hole 20 is embedded in the inner oil injection hole 20 of the inner cylinder 12 in a conical shape and is installed at the bottom of the device as a supplement part of the hydraulic oil in the inner cylinder 12, so as to facilitate the filling of the hydraulic oil, a piston rod 2 is movably installed at the middle part of the sleeve 1, a collided head 3 is fixedly installed at the upper end of the piston rod 2, a silencing sleeve 4 is fixedly installed at the upper end of the collided head 3, the silencing sleeve 4 is a rubber soft sleeve, the colliding head 3 is protected by the silencing sleeve 4, the collision and collision of the collided head 3 when contacting with the bottom of an elevator car are avoided, the generation of noise and vibration are avoided, a buffer spring 5 is fixedly connected at the bottom of the collided head 3, the bottom end of the buffer spring 5 is fixedly connected on the sleeve 1, a piston 6 is fixedly installed at the bottom end of the piston rod 2, piston 6's bottom fixedly connected with reset spring 11, buffer spring 5's diameter value is greater than reset spring 11's diameter value, buffer spring 5's elastic modulus is less than reset spring 11's elastic modulus, buffer spring 5 and reset spring 11's elastic modulus's difference is convenient for make piston rod 2 at first carry out elastic buffering through buffer spring 5 when receiving the compression, and carry out hydraulic cushion to the inside hydraulic oil of inner tube 12 in buffer spring 5's compression later stage, improve the buffer effect and the buffering stability of buffer, sleeve 1's inside is equipped with inner tube 12, oil drain hole 13 has been seted up to inner tube 12's lateral wall bottom, oil gallery 14 has been seted up at the lateral wall middle part of inner tube 12, gasbag 18 has been cup jointed in inner tube 12's the outside, the equal fixed mounting in both ends about gasbag 18 has closing plate 19.

Referring to fig. 3, an oil inlet pipe 16 is sleeved inside the oil return hole 14, a cushion block 15 is fixedly mounted on the outer side of the oil inlet pipe 16, oil spray pipes 17 are fixedly connected to the upper end and the lower end of the cushion block 15, the arrangement of the cushion block 15 is convenient for increasing the circulation length of hydraulic oil inside the inner cylinder 12, the buffer pressure of the hydraulic oil during circulation is convenient to increase, the buffer strength of the buffer is improved, the oil spray pipes 17 are mounted at the upper end and the lower end of the cushion block 15, and the oil spray pipes 17 discharge the hydraulic oil, so that the hydraulic oil flows conveniently.

Referring to fig. 2, a sealing cover 7 is fixedly mounted at the upper end inside the sleeve 1, a dust-proof sleeve 8, a bearing 9 and a pressure-accumulating sponge 10 are arranged inside the sealing cover 7, the dust-proof sleeve 8, the bearing 9 and the pressure-accumulating sponge 10 are used for sealing connection between the sleeve 1 and the piston rod 2, external dust is prevented from entering the inside of the buffer while hydraulic oil inside the sleeve 1 is prevented from being discharged, the buffer is stably used for a long time, and damage to the buffer is avoided.

Referring to fig. 4, the airbags 18 are W-shaped side walls, the number of the airbags 18 is two, the two airbags 18 are respectively installed at the upper end and the lower end of the inner cylinder 12, the upper end and the lower end of each airbag 18 are fixedly connected with a sealing plate 19, the sealing plates 19 are in sliding contact with the inner wall of the sleeve 1 and the outer wall of the inner cylinder 12, high-pressure gas is filled in each airbag 18, the airbags 18 are sealed and supported by high-elastic materials, the pressure inside the buffer is convenient to guarantee, the buffer effect is prevented from being reduced when hydraulic oil inside the buffer is reduced, time is provided for checking and maintaining the device, the device is guaranteed to be stably used, the section of each cushion block 15 is Y-shaped, the cushion block 15 is installed in the middle of the two airbags 18, the cushion block 15 increases the circulation length of the hydraulic oil as much as possible, the pressure in the hydraulic oil is prevented from leaking, and the circulation of the hydraulic oil is convenient.

The working principle is that the device is placed at the bottom of an elevator, when the elevator descends to collide with a buffer, the device is firstly contacted with a silencing sleeve 4, then the silencing sleeve 4 and a collided head 3 move downwards to compress a buffer spring 5, in the compression process, a piston rod 2 drives a piston 6 to slide in an inner cylinder 12 to compress hydraulic oil in the inner cylinder 12, in the compression process, the hydraulic oil flows out along an oil discharge hole 13 and an oil return hole 14 formed in the side wall of the inner cylinder 12, the viscosity of pressure in a generated overflowing gap carries out pressure buffering, an oil inlet pipe 16 is arranged in the oil return hole 14, the hydraulic oil in the oil return hole 14 flows into a cushion block 15 through the oil return hole 14 and is sprayed out after being compressed by oil spray pipes 17 at the upper end and the lower end in the cushion block 15, air bags 18 at the upper side and the lower side of the cushion block 15 are pressurized and pushed, so that air in the air bags 18 is compressed, the buffering effect of the buffer is increased.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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. A hydraulic shock absorber carrying an elastic damping member, comprising a sleeve (1), characterized in that: the utility model discloses a fuel filling device, including sleeve (1), middle part movable mounting of sleeve (1) has piston rod (2), the upper end fixed mounting of piston rod (2) has collided head (3), the bottom fixedly connected with buffer spring (5) of collided head (3), the bottom fixed connection of buffer spring (5) is on sleeve (1), the bottom fixed mounting of piston rod (2) has piston (6), the bottom fixedly connected with reset spring (11) of piston (6), the inside of sleeve (1) is equipped with inner tube (12), oil drain hole (13) have been seted up to the lateral wall bottom of inner tube (12), oil gallery (14) have been seted up at the lateral wall middle part of inner tube (12), gasbag (18) have been cup jointed in the outside of inner tube (12), the equal fixed mounting in both ends about gasbag (18) has closing plate (19).

2. A hydraulic damper carrying an elastic cushion member as set forth in claim 1, wherein: an oil inlet pipe (16) is sleeved inside the oil return hole (14), a cushion block (15) is fixedly mounted on the outer side of the oil inlet pipe (16), and an oil injection pipe (17) is fixedly connected to the upper end and the lower end of the cushion block (15).

3. A hydraulic damper carrying an elastic cushion member as set forth in claim 1, wherein: the upper end of the collided head (3) is fixedly provided with a silencing sleeve (4), and the silencing sleeve (4) is a rubber soft sleeve.

4. A hydraulic damper carrying an elastic cushion member as set forth in claim 1, wherein: the inner upper end of the sleeve (1) is fixedly provided with a sealing cover (7), and a dustproof sleeve (8), a bearing (9) and a pressure storage sponge (10) are arranged in the sealing cover (7).

5. A hydraulic damper carrying an elastic cushion member as set forth in claim 1, wherein: the air bags (18) are W-shaped side walls, the number of the air bags (18) is two, the two air bags (18) are respectively installed at the upper end and the lower end of the inner cylinder (12), sealing plates (19) are fixedly connected to the upper end and the lower end of each air bag (18), and the sealing plates (19) are in sliding contact with the inner wall of the sleeve (1) and the outer wall of the inner cylinder (12).

6. A hydraulic damper carrying an elastic cushion member as set forth in claim 2, wherein: the section of the cushion block (15) is Y-shaped, and the cushion block (15) is arranged in the middle of the two air bags (18).

7. A hydraulic damper carrying an elastic cushion member as set forth in claim 1, wherein: the diameter value of buffer spring (5) is greater than the diameter value of reset spring (11), the elastic modulus of buffer spring (5) is less than the elastic modulus of reset spring (11).

8. A hydraulic damper carrying an elastic cushion member as set forth in claim 4, wherein: an oil filling hole (20) is fixedly installed at the bottom end of the sleeve (1), and the oil filling hole (20) is embedded in the inner barrel (12) in a conical mode.