CN219345142U

CN219345142U - Pressure impact protection device of hydraulic servo harmonic vibrator

Info

Publication number: CN219345142U
Application number: CN202320068976.7U
Authority: CN
Inventors: 吕福海; 靳永强
Original assignee: Dalian Wanwangke Pump Co ltd
Current assignee: Dalian Wanwangke Pump Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-07-14
Anticipated expiration: 2033-01-10

Abstract

The utility model relates to the technical field of hydraulic servo harmonic vibrators, in particular to a pressure impact protection device of a hydraulic servo harmonic vibrator. Through vibrating piece, the piston rod, first hydraulic fluid port, the second hydraulic fluid port, the rubber pad, straight piece, the bolt, spring two, slider and protection architecture's cooperation, when the vibrating piece carries out up-and-down reciprocating motion, the vibrating piece drives the riser and reciprocates, and then make two upper and lower rubber pads laminate with outer wall one side of piston rod respectively, the rubber pad drives the plate body and removes, the plate body drives the montant and removes, the montant compresses spring one, the plate body drives the slider simultaneously and removes spring two, and then cushion protection to the vibrating piece, avoid vibrating piece and piston rod to take place to damage, influence normal work and go on.

Description

Pressure impact protection device of hydraulic servo harmonic vibrator

Technical Field

The utility model relates to the technical field of hydraulic servo harmonic vibrators, in particular to a pressure impact protection device of a hydraulic servo harmonic vibrator.

Background

The inside two working chambers that are equipped with of piston rod of traditional servo harmonic vibrator of hydraulic pressure, when reciprocating motion, two working chambers are high pressure/low pressure chamber each other, and in the servo valve switching process, there is the dead zone of a period of time in the valve core near the valve body middle position, namely: in the period, the working oil ports of the valve core body are not communicated, and the pressure oil flow is in a cut-off state. In this case, the inertia of the outer jacket vibrating mass due to the reciprocating motion causes braking due to the sudden stop of the motion when the oil flow is closed, and non-harmonic vibration is caused.

According to the existing hydraulic servo harmonic vibrator pressure impact protection device (application number: 202021518068.6), each branch loop is composed of an on-off valve and a throttle valve, the corresponding branch loop can be opened or cut off according to the required flow, the corresponding branch loop still exists, the vibrating block is enabled to reciprocate through switching of the servo valve, impact is easy to occur to a piston rod when the vibrating block moves up and down, the impact force of the vibrating block and the piston rod cannot be effectively buffered, an original is easy to damage, buffering protection is not conveniently conducted on the vibrating block, and then the vibrating block and the piston rod are easy to damage under multiple impacts, and normal work is affected.

Disclosure of Invention

The utility model aims to solve the defects that in the prior art, buffer protection is inconvenient to carry out on a vibrating block, the vibrating block and a piston rod are easy to damage, and normal work is affected, and provides a pressure impact protection device of a hydraulic servo harmonic vibrator.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a hydraulic servo harmonic vibrator pressure impact protection device, includes the vibrating block, the outer wall cover of vibrating block is equipped with the piston rod, one side top processing of vibrating block has first hydraulic fluid port, one side below processing of vibrating block has the second hydraulic fluid port, the inner wall one end recess slip joint of vibrating block has the slider, the one end fixedly connected with spring second of slider, the one end of spring second and the inner wall one end recess fixed connection of vibrating block, one side of vibrating block is equipped with protection architecture.

Preferably, the protection architecture includes the chimney, the outer wall of chimney and the inner wall one side fixed connection of vibrating piece, the one end inner wall clearance fit of chimney has the montant, the one end fixedly connected with plate body of montant, the inner wall of plate body and the outer wall one side clearance fit of piston rod, the one end fixedly connected with spring of montant, the one end of spring and the inner wall one end fixed connection of chimney, the one end of plate body and the outer wall one side fixed connection of slider.

Preferably, a straight block is in clearance fit with a groove at one end of the plate body.

Preferably, one end of the straight block is fixedly connected with a rubber pad.

Preferably, the inner wall of the other end of the straight block is in threaded connection with the inner wall of one end of the plate body through a bolt.

The utility model provides a pressure impact protection device of a hydraulic servo harmonic vibrator, which has the beneficial effects that: through vibrating piece, the piston rod, first hydraulic fluid port, the second hydraulic fluid port, the rubber pad, straight piece, the bolt, spring two, slider and protection architecture's cooperation, when making the device when using, can reciprocate from top to bottom through the vibrating piece, the vibrating piece drives the riser and reciprocates, and then make two upper and lower rubber pads laminate with outer wall one side of piston rod respectively, the rubber pad drives the plate body and removes, the plate body drives the montant and removes, the montant compresses spring one, the plate body drives the slider simultaneously and removes, the slider compresses spring two, and then cushion protection is taken place to the vibrating piece, avoid vibrating piece and piston rod to damage, influence normal work goes on.

Drawings

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

FIG. 2 is a schematic diagram of the structure of the vibrating mass, the first oil port and the second oil port according to the present utility model;

FIG. 3 is a schematic diagram of the vibrating mass, spring II and slider structure of the present utility model;

FIG. 4 is a schematic view of the structure of the vertical tube, the first spring and the vertical rod of the present utility model;

fig. 5 is a schematic view of the sleeve and rod structure of the present utility model.

In the figure: 1. vibrating piece, 2, protection architecture, 2a1, a vertical section of thick bamboo, 2a2, spring one, 2a3, montant, 2a4, plate body, 2b1, sleeve, 2b2, body of rod, 3, piston rod, 4, first hydraulic fluid port, 5, second hydraulic fluid port, 6, rubber pad, 7, straight piece, 8, bolt, 9, spring two, 10, slider.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

example 1:

referring to fig. 1-5: in this embodiment, a hydraulic servo harmonic vibrator pressure impact protection device, including vibrating piece 1, the outer wall cover of vibrating piece 1 is equipped with piston rod 3, one side top processing of vibrating piece 1 has first hydraulic fluid port 4, one side below processing of vibrating piece 1 has second hydraulic fluid port 5, the inner wall one end recess slip joint of vibrating piece 1 has slider 10, can slide at the inner wall one end recess of vibrating piece 1 when slider 10 atress, the one end fixedly connected with spring second 9 of slider 10, the opposite force when slider 10 atress removal is given all the time to spring second 9, the one end of spring second 9 and the inner wall one end recess fixed connection of vibrating piece 1, one side of vibrating piece 1 is equipped with protection architecture 2, protection architecture 2 carries out buffer protection to vibrating piece 1, avoid vibrating piece 1 and piston rod 3 to take place to damage, influence normal work and go on.

The protection structure 2 comprises a vertical tube 2a1, the outer wall of the vertical tube 2a1 is fixedly connected with one side of the inner wall of the vibrating block 1, a vertical rod 2a3 is arranged on one end of the inner wall of the vertical tube 2a1 in a clearance fit manner, the inner wall of one end of the vertical tube 2a1 can move up and down when the vertical rod 2a3 is stressed, a plate body 2a4 is fixedly connected with one end of the vertical rod 2a3, the inner wall of the plate body 2a4 is in clearance fit with one side of the outer wall of the piston rod 3, a spring 2a2 is fixedly connected with one end of the vertical rod 2a3, one end of the spring 2a2 is fixedly connected with one end of the inner wall of the vertical tube 2a1, one end of the plate body 2a4 is fixedly connected with one side of the outer wall of the sliding block 10, one end groove of the plate body 2a4 is in a clearance fit manner is provided with a straight block 7, one end groove of the plate body 2a4 can move when the straight block 7 is stressed, one end fixedly connected with rubber pad 6 of straight piece 7, rubber pad 6 can play certain cushioning effect, the other end inner wall of straight piece 7 passes through bolt 8 and the one end inner wall threaded connection of plate 2a4, when vibrating piece 1 reciprocates from top to bottom, vibrating piece 1 drives vertical cylinder 2a1 and reciprocates, and then make two upper and lower rubber pads 6 laminate with outer wall one side of piston rod 3 respectively, rubber pad 6 drives plate 2a4 and removes, plate 2a4 drives montant 2a3 and removes, montant 2a3 compresses spring 2a2, simultaneously plate 2a4 drives slider 10 and removes, slider 10 compresses spring two 9, and then cushion protection is taken place to vibrating piece 1, avoid vibrating piece 1 and piston rod 3 to damage, influence normal work and go on.

Working principle:

firstly, when the vibrating block 1 reciprocates up and down, the vibrating block 1 drives the vertical cylinder 2a1 to move up and down, and then two rubber pads 6 up and down are respectively attached to one side of the outer wall of the piston rod 3, the rubber pads 6 drive the plate body 2a4 to move, the plate body 2a4 drives the vertical rod 2a3 to move, the vertical rod 2a3 compresses the first spring 2a2, meanwhile, the plate body 2a4 drives the sliding block 10 to move, the sliding block 10 compresses the second spring 9, and then the vibrating block 1 is buffered and protected, so that the vibrating block 1 and the piston rod 3 are prevented from being damaged, and normal work is affected.

Example 2:

referring to fig. 2 and 5: in this embodiment, a pressure impact protection device of a hydraulic servo harmonic vibrator, where the protection structure 2 may further include a sleeve 2b1 and a rod 2b2, one end of the sleeve 2b1 is fixedly connected with one side of an inner wall of the vibrating block 1, the rod 2b2 is clearance fit on the inner wall of the sleeve 2b1, the rod 2b2 can move up and down on the inner wall of the sleeve 2b1 when being stressed, and one end of the rod 2b2 is fixedly connected with one side of an outer wall of the plate 2a 4.

Working principle:

when the plate body 2a4 is stressed to move up and down, the plate body 2a4 drives the rod body 2b2 to move up and down, and the sleeve 2b1 plays a limiting role when the rod body 2b2 is stressed to move, so that the stability of the plate body 2a4 when the plate body is stressed to move is improved.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims

1. The utility model provides a hydraulic servo harmonic vibrator pressure impact protection device, includes vibrating mass (1), its characterized in that: the outer wall cover of vibrating piece (1) is equipped with piston rod (3), one side top processing of vibrating piece (1) has first hydraulic fluid port (4), one side below processing of vibrating piece (1) has second hydraulic fluid port (5), the inner wall one end recess slip joint of vibrating piece (1) has slider (10), the one end fixedly connected with spring two (9) of slider (10), the one end of spring two (9) and the inner wall one end recess fixed connection of vibrating piece (1), one side of vibrating piece (1) is equipped with protection architecture (2).

2. The hydraulic servo harmonic vibrator pressure surge protection device of claim 1 wherein: the protection structure (2) comprises a vertical cylinder (2 a 1), the outer wall of the vertical cylinder (2 a 1) is fixedly connected with one side of the inner wall of the vibrating block (1), a vertical rod (2 a 3) is in clearance fit with the inner wall of one end of the vertical cylinder (2 a 1), one end of the vertical rod (2 a 3) is fixedly connected with a plate body (2 a 4), the inner wall of the plate body (2 a 4) is in clearance fit with one side of the outer wall of the piston rod (3), one end of the vertical rod (2 a 3) is fixedly connected with a first spring (2 a 2), one end of the first spring (2 a 2) is fixedly connected with one end of the inner wall of the vertical cylinder (2 a 1), and one end of the plate body (2 a 4) is fixedly connected with one side of the outer wall of the sliding block (10).

3. The hydraulic servo harmonic vibrator pressure surge protection device of claim 2 wherein: one end groove of the plate body (2 a 4) is in clearance fit with a straight block (7).

4. A hydraulic servo harmonic vibrator pressure surge protection device as claimed in claim 3 wherein: one end of the straight block (7) is fixedly connected with a rubber pad (6).

5. The hydraulic servo harmonic vibrator pressure surge protection device of claim 4 wherein: the inner wall of the other end of the straight block (7) is in threaded connection with the inner wall of one end of the plate body (2 a 4) through a bolt (8).