CN218761095U

CN218761095U - Liftable vibration damper

Info

Publication number: CN218761095U
Application number: CN202222632164.9U
Authority: CN
Inventors: 张英; 周瑞良
Original assignee: Xinshu Damping Technology Shanghai Co ltd
Current assignee: Xinshu Damping Technology Shanghai Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-03-28
Anticipated expiration: 2032-10-08

Abstract

The utility model provides a liftable vibration damper, which relates to the technical field of air springs and comprises an air spring assembly, a height adjusting mechanism and a base; the height adjusting mechanism comprises an outer barrel, an installation block, a lifting rod, a guide flat key, a trip rod and a power tube, wherein one end of the trip rod is connected with the power tube, the power tube is coaxially arranged in the outer barrel in a penetrating manner and can rotate relative to one end of the outer barrel, and the other end of the outer barrel is connected with the base; the lifting rod is coaxially arranged in the power pipe in a penetrating way, and the lifting rod and the power pipe are connected through a thread pair; the mounting block is coaxially mounted at one end of the lifting rod and used for mounting an air spring assembly; the guide flat key is arranged at the other end of the lifting rod, and a sliding groove matched with the guide flat key is formed in the inner wall of the outer barrel. The utility model discloses on the basis of guaranteeing the damping function, give air spring simultaneously and have the function of oscilaltion on a large scale.

Description

Liftable vibration damper

Technical Field

The utility model relates to an air spring technical field, concretely relates to damping device of liftable.

Background

A spring is used to fill compressed air into a telescopic sealed container and to use the elastic action of air. Commonly known as air bags, air bag type cylinders, leather bag cylinders and the like. The air spring is formed by charging compressed air into a sealed container and realizing the elastic action by utilizing the compressibility of the air, and has ideal nonlinear elastic characteristics.

The invention with the prior publication number of CN104047986B discloses a variable-rigidity air spring of a vehicle suspension system.A base of an air bag is fixedly connected with the upper end of a screw rod, a sleeve and a straight gear are coaxially sleeved along the axial direction of the screw rod, the lower end of the sleeve is coaxially and fixedly connected with the upper end of the straight gear, the sleeve is sleeved outside the screw rod in an empty way, and a first roller bearing with rollers axially arranged is fixedly arranged on the surface of the outer ring of the sleeve; the straight gear is connected with the screw through a central threaded hole, and a second roller bearing with rollers arranged in a radial direction is arranged on the upper surface of the straight gear; the center of the air bag support is in contact with and sleeved outside the first roller bearing, and the bottom surface of the air bag support is placed on the second roller bearing; the edge of the straight gear is connected with a freely rotating guide circular ring bracket, one side of the guide circular ring bracket is fixedly connected with a guide wheel, the guide wheel can move up and down in a groove-shaped guide rail, the guide circular ring bracket is fixedly connected with a shell of a motor, an output shaft of the motor is provided with a driving gear, and the driving gear is meshed with the straight gear; the stepless adjustment of the rigidity of the air spring is realized by controlling the on-off time of the motor.

In the above prior art, the air bag belongs to an air spring, the rigidity adjustment is realized by the ascending and descending of the self-lifting mechanism below, meanwhile, in the work process of the self-lifting mechanism, the ascending or descending of the air bag support can be realized by the cooperation of a plurality of structures such as a screw rod, a sleeve, a straight gear, a first ball bearing, a second ball bearing, a guide wheel and a groove-shaped guide rail, and the self-lifting mechanism can also be used for directly driving the air bag to ascend and descend to realize the height adjustment.

The utility model provides a liftable vibration damper through setting up one set of simple structure, the manually operation's of being convenient for elevating system, on the basis of guaranteeing the damping function, gives air spring the function that has oscilaltion on a large scale simultaneously.

SUMMERY OF THE UTILITY MODEL

To the not enough that prior art exists, the utility model aims to provide a damping device of liftable, concrete scheme is as follows:

a liftable vibration damper comprises an air spring assembly, a height adjusting mechanism and a base, wherein the air spring assembly comprises a cylinder, a cylinder cover and a cylinder cover;

the height adjusting mechanism comprises an outer cylinder, a mounting block, a lifting rod, a guide flat key, a trip rod and a power tube,

one end of the trip rod is connected with the power tube, the power tube is coaxially arranged in the outer cylinder in a penetrating way and can rotate relative to one end of the outer cylinder, and the other end of the outer cylinder is connected with the base;

the lifting rod is coaxially arranged in the power pipe in a penetrating manner, and the lifting rod and the power pipe are connected through a thread pair;

the mounting block is coaxially mounted at one end of the lifting rod and used for mounting the air spring assembly;

the guide flat key is arranged at the other end of the lifting rod, and a sliding groove matched with the guide flat key is formed in the inner wall of the outer barrel.

Through the technical scheme, the vibration damping device is arranged at a preset position through the base, when the vibration damping device works, the air spring assembly achieves a vibration damping function, meanwhile, as the height adjusting mechanism is arranged at the bottom of the air spring assembly, when the height of the air spring assembly needs to be increased, a worker holds the pulling rod to rotate, the power pipe rotates relative to the outer barrel along with the pulling rod, under the action of the thread pair, the moment generated when the power pipe rotates only drives the lifting rod to ascend under the limiting action that the guide flat key slides in the sliding groove, and does not drive the lifting rod to rotate, so that the air spring assembly on the installation block is driven to ascend; when the height of the air spring assembly needs to be reduced, the pulling rod is rotated reversely to drive the lifting rod to descend, so that the air spring assembly on the mounting block is driven to descend.

Furthermore, an inner cylinder which is coaxially arranged is connected between the end face of one end of the outer cylinder and the inner wall through a screw, and a clamp spring for a shaft is embedded between the outer wall of the power pipe and the inner wall of the inner cylinder in a matching manner.

Further, the power pipe comprises an abutting part and a pipe body which are integrally arranged along the height adjusting direction, and the outer diameter of the abutting part is larger than that of the pipe body;

the butting part is butted with the inner cylinder, and the butting part is connected with one end of the trip rod through a thread pair.

Furthermore, the mounting block is connected with the lifting rod through a thread pair, a reinforcing bolt penetrates through the thread in the mounting block, and the reinforcing bolt is abutted to the surface of the lifting rod.

Further, the height of the base is adjustable.

Furthermore, the base comprises a supporting plate and an adjustable foot cup, and two ends of the supporting plate are linked with the adjustable foot cup.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) The whole device is simple in structure, the height of the air spring assembly can be adjusted by only rotating the pulling rod by a worker, the operation is convenient, the whole height adjusting mechanism is basically arranged in the outer barrel, the whole occupied space is small, the length of the lifting rod is long, the air spring assembly is endowed with a large-range height adjusting stroke, and the adaptability of the vibration damper is improved.

(2) Through setting up inner tube and for the axle jump ring, only can the rotation when power tube atress is rotatory, can not be along axial displacement for power tube stable installation is in the inner tube, and inner tube demountable installation is convenient for the dismouting in the urceolus moreover.

(3) The butt joint part and the inner cylinder butt joint play a supporting role for the power tube, and the butt joint part and the pulling rod are detachably connected and are convenient to disassemble and assemble.

(4) Can dismantle between installation piece and the lifter and be connected, the dismouting of being convenient for, moreover, through setting up reinforcing bolt, exert a supporting power to the lifter when reinforcing bolt screws up, improve the stability between installation piece and the lifter.

(5) The worker manually rotates the adjustable foot cup to drive the supporting plate to ascend or descend, so that a section of height adjusting stroke can be added to the air spring assembly.

Drawings

Fig. 1 is a schematic view of the working principle of the embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1 taken along the axial direction of the outer barrel;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged schematic view of a portion B in fig. 2.

Reference numerals: 1. an air spring assembly; 2. an outer cylinder; 3. mounting blocks; 4. a lifting rod; 5. fastening screws; 6. a guiding flat key; 7. pulling a rod; 8. a power tube; 81. an abutting portion; 82. a pipe body; 9. an inner barrel; 10. A clamp spring for the shaft; 11. a chute; 12. a support plate; 13. the foot cup can be adjusted; 14. reinforcing the bolt; 15. and a limiting bolt.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

As shown in figure 1, the vibration damping device capable of lifting comprises an air spring assembly 1, a height adjusting mechanism and a base, wherein the air spring assembly 1 is arranged on the height adjusting mechanism, the height adjusting mechanism is arranged on the base, the whole vibration damping device is arranged at a preset position through the base, a worker can adjust the height of the air spring assembly 1 by operating the height adjusting mechanism, the function of adjusting within a certain height range is realized under the condition of meeting the vibration damping requirement, and the adaptability of the device is improved.

The air spring assembly 1 is a product directly purchased in the prior art, and is not described in detail in this embodiment.

As shown in fig. 2, the height adjusting mechanism comprises an outer cylinder 2, a mounting block 3, a lifting rod 4, a guide flat key 6, a trip rod 7 and a power pipe 8, wherein the outer cylinder 2 is used as a bearing structure, and other structures are basically mounted in the outer cylinder 2, so that the overall occupied space of the height adjusting mechanism is reduced.

Specifically, the power pipe 8 includes the abutting portion 81 and the pipe body 82 which are integrally provided in the height adjustment direction, and the inner diameters of the abutting portion 81 and the pipe body 82 are the same, and the outer diameter of the abutting portion 81 is larger than the outer diameter of the pipe body 82, so that it can be seen that the power pipe 8 is similar to a T shape as a whole.

The power tube 8 is coaxially arranged in the outer barrel 2 in a penetrating mode and can rotate relative to one end of the outer barrel 2, in order to achieve installation of the power tube 8, an inner barrel 9 which is coaxially arranged is connected between the end face and the inner wall of one end of the outer barrel 2 through screws, the end wall, turned outwards, of the inner barrel 9 abuts against the end face of the outer barrel 2, and the inner side wall of the inner barrel 9 is attached to the inner wall of the outer barrel 2. It can be seen that the pipe body 82 of the power pipe 8 is fitted into the inner tube 9, and then the contact portion 81 is brought into contact with the inner tube 9. As shown in fig. 3, in order to realize the movement of the power pipe 8, a shaft snap spring 10 is fittingly embedded between the outer wall of the pipe body 82 and the inner wall of the inner cylinder 9, the shaft snap spring 10 is used as a product directly available in the prior art, the inner diameter of the shaft snap spring is slightly smaller than the outer diameter of the pipe body 82, and the shaft snap spring can be installed by using snap spring pliers, so that the power pipe 8 only rotates in a self-rotation manner when being forced to rotate, and cannot displace along the axial direction.

In order to apply force to the power tube 8, one end of the pulling rod 7 is connected with the abutting part 81 through a screw pair. When a worker holds the pulling rod 7 to rotate, the power tube 8 can rotate in the inner barrel 9.

In this embodiment, the lifting rod 4 can be a screw rod, the lifting rod 4 is coaxially inserted into the power pipe 8, and the two are connected by a screw pair, as can be seen from fig. 2, the lifting rod 4, the inner cylinder 9, the power pipe 8, and the outer cylinder 2 are sequentially arranged from inside to outside.

After the lifting rod 4 is installed in the urceolus 2, its one end that exposes in the urceolus 2 outside is connected with installation piece 3, and installation piece 3 wholly is the T font, and the great one side of face price is used for installing air spring assembly 1, is connected through the screw thread pair between opposite side and the lifting rod 4, and the reinforcing bolt 14 is worn to be equipped with by the screw thread in the installation piece 3, and applying a tight power of supporting to lifting rod 4 when reinforcing bolt 14 screws up improves the stability between installation piece 3 and the lifting rod 4.

Referring to fig. 2 and 4, the guiding flat key 6 is installed at the other end of the lifting rod 4, a sliding groove 11 matched with the guiding flat key 6 is formed in the inner wall of the outer barrel 2, and the two ends of the outer barrel 2, which are located at the sliding groove 11, are respectively provided with a limiting bolt 15 in a penetrating manner. The guide flat key 6, which is a product directly available in the prior art, can perform a sliding motion in the chute 11, and when the guide flat key 6 touches the limit bolt 15, the highest point and the lowest point of the motion are reached.

Therefore, when a worker holds the pulling rod 7 to rotate, the power pipe 8 rotates along with the pulling rod 7 relative to the outer cylinder 2, and under the action of the thread pair, the moment generated when the power pipe 8 rotates only drives the lifting rod 4 to ascend or descend under the limiting action that the guide flat key 6 slides in the sliding groove 11, and does not drive the lifting rod 4 to rotate, so that the air spring assembly 1 on the mounting block 3 is driven to ascend or descend.

In order to realize that the height adjusting mechanism is arranged on the base, the other end of the outer barrel 2 is connected with the base, the height of the base can be adjusted, and a section of height adjusting stroke is additionally provided for the air spring assembly 1 outside the height adjusting range of the air spring assembly 1 given by the height lifting mechanism.

The base comprises a supporting plate 12 and two adjustable foot cups 13, the outer barrel 2 is fixedly embedded in the supporting plate 12, the two adjustable foot cups 13 are linked with the two end of the supporting plate 12, and when workers manually rotate the adjustable foot cups 13, the supporting plate 12 can be driven to ascend or descend, so that the outer barrel 2 and the air spring assembly 1 on the outer barrel 2 are driven to ascend or descend.

It should be noted that the thread pair mentioned in the present embodiment is an internal thread and an external thread, and the two together form a thread pair for coupling and transmission.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A vibration damping device capable of ascending and descending comprises an air spring assembly (1) and is characterized by further comprising a height adjusting mechanism and a base;

the height adjusting mechanism comprises an outer cylinder (2), a mounting block (3), a lifting rod (4), a guide flat key (6), a pulling rod (7) and a power pipe (8),

one end of the trip lever (7) is connected with the power pipe (8), the power pipe (8) is coaxially arranged in the outer cylinder (2) in a penetrating way and can rotate relative to one end of the outer cylinder (2), and the other end of the outer cylinder (2) is connected with the base;

the lifting rod (4) is coaxially arranged in the power pipe (8) in a penetrating manner, and the lifting rod and the power pipe are connected through a thread pair;

the mounting block (3) is coaxially mounted at one end of the lifting rod (4) and is used for mounting the air spring assembly (1);

the guide flat key (6) is installed at the other end of the lifting rod (4), and a sliding groove (11) matched with the guide flat key (6) is formed in the inner wall of the outer barrel (2).

2. The liftable vibration damping device according to claim 1, wherein an inner cylinder (9) which is coaxially arranged is connected between the end face and the inner wall of one end of the outer cylinder (2) through a set screw, and a shaft snap spring (10) is embedded between the outer wall of the power tube (8) and the inner wall of the inner cylinder (9) in a matching manner.

3. The liftable vibration damping device according to claim 2, wherein the power tube (8) comprises an abutting part (81) and a tube body (82) which are integrally arranged in the height adjusting direction, and the outer diameter of the abutting part (81) is larger than that of the tube body (82);

the abutting part (81) abuts against the inner cylinder (9), and the abutting part (81) is connected with one end of the trip rod (7) through a thread pair.

4. The liftable vibration damping device according to claim 1, characterized in that the mounting block (3) is connected with the lifting rod (4) through a thread pair, a reinforcing bolt (14) is threaded in the mounting block (3), and the reinforcing bolt (14) abuts against the surface of the lifting rod (4).

5. The liftable vibration reduction device according to claim 1, wherein the base is adjustable in height.

6. The liftable vibration reduction device according to claim 5, wherein the base comprises a support plate (12) and an adjustable foot cup (13), and both ends of the support plate (12) are linked with the adjustable foot cup (13).