CN216200042U

CN216200042U - Compound buffer pressure spring

Info

Publication number: CN216200042U
Application number: CN202122468644.1U
Authority: CN
Inventors: 赵定安
Original assignee: Hangzhou Tongyong Spring Co ltd
Current assignee: Hangzhou Tongyong Spring Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-04-05
Anticipated expiration: 2031-10-14

Abstract

The utility model relates to the technical field of spring equipment, and discloses a compound buffer pressure spring, which solves the problems that the spring has larger elasticity and cannot play a buffering effect under the action of smaller pressure, and comprises a buffer shaft sleeve, wherein an oil cavity is formed in the buffer shaft sleeve, an oil discharge hole is formed in the bottom end of the oil cavity at an equal angle, oil return holes are formed in the top end of the oil cavity at an equal angle, the oil discharge hole is communicated with the oil return holes, a buffer shaft is arranged in the buffer shaft sleeve, and a buffer assembly is arranged at the bottom end of the buffer shaft; in the utility model, in the work, the top spring is arranged at the bottom end of the piston, and the pressing plate at the bottom end of the top spring is clamped with the rotary groove, so that when the top end of the buffer shaft is pressed, the top spring is compressed before the bottom spring, and the elastic coefficient of the top spring is smaller than that of the bottom spring, thereby the buffer shaft still plays a role in buffering when smaller pressure acts on the top end of the buffer shaft, and the application range of the buffer is further improved.

Description

Compound buffer pressure spring

Technical Field

The utility model belongs to the technical field of spring equipment, and particularly relates to a compound buffer pressure spring.

Background

The hydraulic buffer buffers and decelerates the object acting on the hydraulic buffer to stop by means of hydraulic damping, and plays a certain protection role. The spring buffer is a safety buffer device which is suitable for mechanical equipment such as hoisting transportation, elevators, metallurgy, harbor machinery, railway vehicles and the like and has the function of preventing a mechanism from being damaged due to rigid collision in the working process, and the spring in the spring buffer is buffered under the action of the spring and hydraulic pressure.

The buffer has a higher buffering effect, so that the elasticity of the internal spring is larger, and then the spring cannot be compressed when the lower pressure is smaller, and thus the buffering effect is poor.

SUMMERY OF THE UTILITY MODEL

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the compound buffer pressure spring, which effectively solves the problems that the spring has larger elasticity and cannot play a role in buffering under the action of smaller pressure.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a compound buffer pressure spring, includes the buffering axle sleeve, the oil pocket has been seted up to the inside of buffering axle sleeve, and the oil drain hole has been seted up to the angle such as bottom of oil pocket, and the oil gallery has been seted up to the angle such as top of oil pocket, is linked together between oil drain hole and the oil gallery, and the internally mounted of buffering axle sleeve has the buffering axle, and the buffering subassembly is installed to the bottom of buffering axle.

Preferably, the buffering subassembly is including installing in the piston of buffering axle bottom, and the screw rod is installed to the bottom of piston, and the outside threaded connection of screw rod has the clamp plate, and the top spring is installed on the top of clamp plate, and the bottom spring is installed to the bottom of clamp plate, and the rotary trough has been seted up in the outside of clamp plate, and the spacing groove has been seted up to the bilateral symmetry of rotary trough.

Preferably, the diameter of the piston is the same as that of the oil chamber, and the top end of the piston is flush with that of the oil return hole.

Preferably, the thickness of the pressing plate is the same as that of the rotary groove, and a stop block is arranged on one side, located on the limiting groove, of the inner portion of the rotary groove.

Preferably, the top and the bottom of clamp plate have all been seted up the spout, and the internally mounted of spout has the slider, and the fixture block is installed to the bilateral symmetry of clamp plate.

Preferably, the sliding groove is in sliding clamping connection with the sliding block, the clamping block is in rotating clamping connection with the rotating groove, and the width of the clamping block is the same as that of the limiting groove.

Preferably, the elastic coefficient of the bottom spring is larger than that of the top spring, and the bottom end of the top spring and the top end of the bottom spring are fixedly connected with the sliding block.

Compared with the prior art, the utility model has the beneficial effects that:

1) during operation, the top spring is installed at the bottom end of the arranged piston, and the pressing plate at the bottom end of the top spring is clamped with the rotary groove, so that when the top end of the buffer shaft is pressed, the top spring is compressed before the bottom spring, and the elastic coefficient of the top spring is smaller than that of the bottom spring, so that when smaller pressure acts on the top end of the buffer shaft, the buffer effect is still achieved, and the application range of the buffer is further improved;

2) the utility model discloses a buffer, including the piston bottom, the clamp plate is connected with the clamp plate, at work, screw rod and clamp plate threaded connection through the piston bottom that sets up to after the piston moves down, drive the clamp plate earlier and rotate, then when the clamp plate rotated fixture block and the corresponding position of rotary groove, buffer shaft pressure moved top spring and bottom spring together the downstream this moment, thereby made the increase of buffering strength, used when conveniently receiving great strength and strikeed, then further improved the application range of buffer.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

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

FIG. 2 is a schematic view of the internal structure of the cushion collar of the present invention;

FIG. 3 is a schematic view of a buffer sleeve according to the present invention;

FIG. 4 is a schematic view of a buffer assembly according to the present invention;

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

In the figure: 1. a buffer shaft sleeve; 2. an oil chamber; 3. an oil drain hole; 4. an oil return hole; 5. a buffer shaft; 6. a buffer assembly; 601. a piston; 602. a screw; 603. pressing a plate; 6031. a chute; 6032. a slider; 6033. a clamping block; 604. a top spring; 605. a bottom spring; 606. rotating the groove; 607. a limiting groove.

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.

In the first embodiment, as shown in fig. 1 to 5, the oil-saving buffering shaft sleeve comprises a buffering shaft sleeve 1, an oil cavity 2 is formed inside the buffering shaft sleeve 1, an oil discharge hole 3 is formed in the bottom end of the oil cavity 2 at an equal angle, an oil return hole 4 is formed in the top end of the oil cavity 2 at an equal angle, the oil discharge hole 3 is communicated with the oil return hole 4, a buffering shaft 5 is installed inside the buffering shaft sleeve 1, and a buffering assembly 6 is installed at the bottom end of the buffering shaft 5.

In the second embodiment, on the basis of the first embodiment, the buffer assembly 6 includes a piston 601 installed at the bottom end of the buffer shaft 5, a screw 602 is installed at the bottom end of the piston 601, a pressing plate 603 is connected to the outer side of the screw 602 through a thread, a top spring 604 is installed at the top end of the pressing plate 603, a bottom spring 605 is installed at the bottom end of the pressing plate 603, a rotating groove 606 is formed in the outer side of the pressing plate 603, limiting grooves 607 are symmetrically formed in two sides of the rotating groove 606, the diameter of the piston 601 is the same as that of the oil cavity 2, the top end of the piston 601 is flush with the top end of the oil return hole 4, the thickness of the pressing plate 603 is the same as that of the rotating groove 606, and a stopper is arranged on one side, located in the limiting groove 607, of the interior of the rotating groove 606;

the buffer shaft 5 is pressed to move downwards, the screw 602 is in threaded connection with the pressing plate 603, the pressing plate 603 is in rotational connection with the rotary groove 606, the screw 602 drives the pressing plate 603 to rotate after moving downwards, then when the pressing plate 603 rotates until the fixture 6033 is in contact with a stop inside the rotary groove 606, the pressing plate 603 cannot rotate continuously at the moment, the fixture 6033 corresponds to the limiting groove 607, at the moment, the pressing plate 603 is driven to move downwards in the process that the screw 602 moves downwards continuously, the bottom spring 605 is installed at the bottom end of the pressing plate 603, after the pressing plate 603 moves downwards, pressure is generated on the bottom spring 605, and then the bottom spring 605 is compressed, and as the elastic coefficient of the bottom spring 605 is larger than that of the top spring 604, the combined elastic force of the top spring 604 and the bottom spring 605 is larger than that of the top spring 604 when the top spring 604 and the bottom spring 605 are pressed simultaneously.

Third embodiment, on the basis of second embodiment, the top and the bottom of clamp plate 603 have all been seted up spout 6031, the internally mounted of spout 6031 has slider 6032, fixture block 6033 is installed to the bilateral symmetry of clamp plate 603, spout 6031 and slider 6032 slip joint, fixture block 6033 rotates the joint with the rotating groove 606, the width of fixture block 6033 is the same with the width of spacing groove 607, the elastic coefficient of bottom spring 605 is greater than the elastic coefficient of top spring 604, the bottom of top spring 604 and the top of bottom spring 605 all with slider 6032 fixed connection, because slider 6032 and spout 6031 slip joint, top spring 604 and bottom spring 605 all are connected with slider 6032 simultaneously, thereby in the rotation process of clamp plate 603, can not influence the position of spring.

The working principle is as follows: when the hydraulic oil pressure buffering device works, firstly, when a small force acts on the top end of the buffering shaft 5, the buffering shaft 5 moves downwards under the action of pressure, at the moment, the buffering shaft 5 pushes the piston 601 to move downwards, the screw 602 is in threaded connection with the pressing plate 603, and the pressing plate 603 is in rotational connection with the rotary groove 606, so that after the screw 602 moves downwards, the pressing plate 603 is driven to rotate, and due to the fact that the downward pressure is small, the pressing plate 603 cannot rotate to the position where the fixture block 6033 corresponds to the limiting groove 607, in the compression process of the top spring 604, hydraulic oil at the bottom end of the piston 601 is pressed into the top end of the piston 601 through the oil return hole 4 from the oil discharge hole 3, and under the elastic force action of the hydraulic oil and the top spring 604, the small force is buffered;

when a large force acts on the top end of the buffer shaft 5, the buffer shaft 5 is pressed to move downwards and then drives the pressing plate 603 to rotate, because the downward pressure is large, the screw 602 is in threaded connection with the pressing plate 603, so that the pressing plate 603 is driven to rotate after the screw 602 moves downwards, when the pressing plate 603 rotates until the fixture 6033 is in contact with the inside of the rotating groove 606, the pressing plate 603 cannot continue to rotate, at this time, the fixture 6033 corresponds to the limiting groove 607, at this time, the pressing plate 603 is driven to move downwards along the limiting groove 607 in the process that the screw 602 continues to move downwards, the bottom end of the pressing plate 603 is provided with a bottom spring 605, when the pressing plate 603 moves downwards, pressure is generated on the bottom spring 605, so that the bottom spring 605 is compressed, because the elastic coefficient of the bottom spring 605 is larger than that of the top spring 604, when the top spring 604 and the bottom spring 605 are simultaneously pressed, the combined elastic force of the top spring 604 and the bottom spring 605 is larger than that of the top spring 604, thereby dampening the large forces.

Claims

1. The utility model provides a compound buffer pressure spring, includes buffering axle sleeve (1), its characterized in that: oil pocket (2) have been seted up to the inside of buffering axle sleeve (1), oil drain hole (3) have been seted up to the angle such as the bottom of oil pocket (2), oil gallery (4) have been seted up to the angle such as the top of oil pocket (2), are linked together between oil drain hole (3) and oil gallery (4), and the internally mounted of buffering axle sleeve (1) has buffering axle (5), and buffering subassembly (6) are installed to the bottom of buffering axle (5).

2. A compound damper compression spring according to claim 1, wherein: buffer unit (6) are including installing piston (601) in buffering axle (5) bottom, and screw rod (602) are installed to the bottom of piston (601), and the outside threaded connection of screw rod (602) has clamp plate (603), and top spring (604) are installed on the top of clamp plate (603), and bottom spring (605) are installed to the bottom of clamp plate (603), and rotary trough (606) have been seted up in the outside of clamp plate (603), and spacing groove (607) have been seted up to the bilateral symmetry of rotary trough (606).

3. A compound damper compression spring according to claim 2, wherein: the diameter of the piston (601) is the same as that of the oil cavity (2), and the top end of the piston (601) is flush with that of the oil return hole (4).

4. A compound damper compression spring according to claim 2, wherein: the thickness of the pressing plate (603) is the same as that of the rotating groove (606), and a stop block is arranged on one side, located in the limiting groove (607), of the inside of the rotating groove (606).

5. A compound damper compression spring according to claim 2, wherein: the top and the bottom of clamp plate (603) have all been seted up spout (6031), and the internally mounted of spout (6031) has slider (6032), and fixture block (6033) are installed to the bilateral symmetry of clamp plate (603).

6. A compound damper compression spring according to claim 5, wherein: the sliding groove (6031) is in sliding clamping connection with the sliding block (6032), the clamping block (6033) is in rotating clamping connection with the rotating groove (606), and the width of the clamping block (6033) is the same as that of the limiting groove (607).

7. A compound damper compression spring according to claim 5, wherein: the elasticity coefficient of the bottom spring (605) is larger than that of the top spring (604), and the bottom end of the top spring (604) and the top end of the bottom spring (605) are fixedly connected with the sliding block (6032).