CN220517640U - A kind of shock absorbing device for hydraulic press - Google Patents

Abstract

The utility model discloses a shock-absorbing device for a hydraulic machine, which relates to the technical field of hydraulic machine design. It includes two buffer parts, a shock-absorbing mechanism and a ground. Fillers are filled in a connecting jacket, and reinforcing ribs are fixedly installed on the upper surface of the connecting jacket. A motor is fixedly installed on the upper surface of the jacket, and the motor is fixedly connected to the reinforcing rib; a through hole is provided in the piston, a one-way valve is inserted and fixed in the through hole, a damping hole is inserted in the piston, and the inner bottom wall of the chamber one is fixed A buffer spring is connected. The utility model reduces the impact of vibration caused by the rotation of the motor through the cooperative arrangement of the connecting jacket, the filler and the reinforcing ribs during operation. The filler can also absorb the noise generated by the motor through the setting of the buffer part 1; through the piston and the one-way valve In conjunction with the damping hole, the elongated hole of the damping hole is designed to increase the damping (force) of the flow channel during the compression stage of the shock absorbing mechanism, so that the rapid changes in the fluid can be smoothed down through the damping hole to achieve the shock absorption effect.

Description

A kind of shock absorbing device for hydraulic press

Technical field

The utility model relates to the technical field of hydraulic press design, specifically a shock absorbing device for a hydraulic press.

Background technique

A hydraulic press is a machine that uses liquid as the working medium and is made according to Pascal's principle to transfer energy to achieve various processes. A hydraulic press generally consists of three parts: the machine (host), the power system and the hydraulic control system. Hydraulic presses are classified into valve hydraulic presses, liquid hydraulic presses, and engineering hydraulic presses.

When the hydraulic press performs stamping work, a large impact force will be generated, which will cause the entire device to vibrate greatly. When vibration occurs, the piston in the shock absorber moves up and down, and the oil in the shock absorber chamber repeatedly flows from one chamber through different pores into another chamber. At this time, the friction between the hole wall and the oil and the internal friction between the oil molecules form a damping force on the vibration, converting the vibration energy into oil heat energy, which is then absorbed and dissipated into the atmosphere by the shock absorber. When the cross-section and other factors of the oil passage remain unchanged, the damping force is related to the viscosity of the oil.

The prior art CN 215409943 U discloses a shock absorbing device for a hydraulic machine, which includes a workbench. A plurality of stabilizing sleeves are fixedly connected to the lower side of the workbench. A first spring is fixedly connected to the stabilizing sleeve, and a third spring is fixedly connected to the lower side of the workbench. The other end of a spring is fixedly connected to a conductive column, and the other end of the conductive column is fixedly connected to a sealing plate. Both sides of the sealing plate are fixedly connected to a second spring, and the other end of the second spring is fixedly connected to a sealing plate. A stable seat is slidably connected to the sealing plate. One side of the stable seat and the stabilizing sleeve is fixedly connected with a hose, and one side of the hose is connected to a connecting pipe. The utility model has a simple structure, is easy to use, and can perform different buffering functions. The adjustment of the strength can adapt to different stamping needs for buffering, provide good buffering, ensure that the work is carried out, reduce mechanical damage, extend the service life of the device, and reduce costs. Although the utility model proposes an improved method of The shock-absorbing mechanism of a hydraulic press, however, this utility model only considers the vibration caused by stamping, and does not consider the vibration caused by motor rotation, component connection gaps, and adjacent hydraulic presses. Moreover, the shock-absorbing structure design of this utility model has flaws. The first spring The use intensity is extremely high and it is easy to be damaged, resulting in a short service life of the components. Moreover, most of the functions of the proposed shock-absorbing mechanism are buffering, and the shock-absorbing effect is weak.

Utility model content

(1) Technical problems solved

In view of the shortcomings of the existing technology, the present utility model provides a shock absorbing device for a hydraulic machine, which solves the problems raised in the above background technology.

(2) Technical solutions

In order to achieve the above objectives, the present utility model is realized through the following technical solutions: a shock-absorbing device for a hydraulic machine, including two buffer parts, a storage platform, a shock-absorbing mechanism and a ground. An anti-shock ditch is provided in the ground, and two sides of the anti-shock ditch are provided. Steel sheet piles are fixedly installed on both sides. A buffer piece 1 is placed on the upper surface of the storage platform. A support piece is fixedly connected to the upper surface of the buffer piece 2. A flexible connector is fixedly connected to the upper surface of the support piece. The flexible connector includes a connecting piece. Jacket, filler and reinforcing rib. The filler is filled in the connecting jacket. The reinforcing rib is fixedly installed on the upper surface of the connecting jacket. A motor is fixedly installed on the upper surface of the connecting jacket. The motor is fixedly connected to the reinforcing rib. Several shock absorbing mechanisms are fixedly installed. It is installed on the upper surface of the buffer member two. The shock-absorbing mechanism includes a chamber one. A chamber two is inserted into the chamber one. A piston is fixedly installed on one end of the chamber two. The other end of the chamber two is fixedly connected with a funnel. The receiving member has a through hole and a damping hole in the piston. A one-way valve is inserted and fixed in the through hole. A buffer spring is fixedly connected to the inner bottom wall of the chamber. The buffer spring is fixedly connected to the piston. The funnel-shaped receiving member A vertical spring is fixedly connected to the bottom, a number of tilt springs are fixedly connected to the side of the funnel-shaped receiving member, one end of the vertical spring is fixedly connected to the limiter, several tilt springs are fixedly connected to the limiter, and the storage table is fixedly installed at the limiter. the upper surface of the piece.

Optionally, the anti-vibration groove is in the shape of a square circle, and the second buffer member is installed in the anti-vibration groove.

Optionally, a hydraulic column is fixedly installed in the support member, four limit columns are fixedly connected to the lower part of the support member, and a movable plate is slidingly connected to the outside of the limit column, and the movable plate is fixedly connected to the hydraulic column.

Optionally, the material of the buffer member 1 is wooden board, and the buffer member 1 is coaxial with the hydraulic column.

Optionally, the connection jacket is made of rubber, and the filling material can be textile or sand.

Optionally, the one-way valve is connected from chamber two to chamber one, the shape of the damping hole is an elongated hole, and the ratio of the aperture to length of the elongated hole is greater than four, and both chambers one and two are Filled with oil.

Optionally, the shape of the limiting member is a truncated cone, the funnel-shaped receiving member is parallel to the outside of the limiting member, the number of the tilt springs is greater than three, and they are distributed annularly about the axis of the funnel-shaped receiving member, and the limiting column The lower part is plugged into the limiter.

(3) Beneficial effects

The utility model provides a shock absorbing device for a hydraulic machine, which has the following beneficial effects:

1. The shock-absorbing device for this hydraulic press reduces the negative impact of vibrations caused by adjacent hydraulic presses through the combination of anti-seismic ditches and steel sheet piles. It also reduces the vibration caused by the rotation of the motor during operation through the combination of connecting jackets, fillers and reinforcing ribs. The filler can also absorb the noise generated by the motor. Through the setting of the first buffer, without affecting the stamping work, materials such as wooden boards are used to absorb shock waves, which has a shock-absorbing effect. Through the setting of the second buffer, Reduces vibration transmission between component connections;

2. The shock absorbing device for the hydraulic machine is equipped with a tilt spring and a vertical spring. The tilt spring shares the impact of the vertical spring, increases the service life of the device, and avoids frequent replacement of the shock absorbing device to waste time. The piston, one-way valve and damping hole are set together. During the compression stage of the shock absorbing mechanism, the elongated hole of the damping hole is designed to increase the damping (force) of the flow channel, so that the rapid changes in the fluid can be smoothed down through the damping hole to achieve shock absorption. The buffer spring is used for return and buffering.

Description of drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

Figure 2 is a left structural schematic diagram of the utility model;

Figure 3 is a formal cross-sectional structural diagram of the utility model;

Figure 4 is a partially enlarged structural schematic diagram of Figure 3A of the present utility model;

Figure 5 is a schematic structural diagram of the shock absorbing device of the present utility model;

Figure 6 is a schematic structural diagram of the motor connection point of the present utility model.

In the picture: 1. Ground; 2. Buffer spring; 3. Shock absorbing mechanism; 4. Limit column; 5. Movable plate; 6. Hydraulic column; 7. Flexible connector; 8. Motor; 9. Storage table; 10 , Buffer part one; 11. Piston; 12. One-way valve; 13. Oil; 101. Steel sheet pile; 102. Anti-seismic trench; 103. Support part; 104. Buffer part two; 301. Chamber one; 302. Chamber Chamber two; 303, funnel-shaped receiving piece; 304, vertical spring; 305, tilt spring; 306, limiter; 701, reinforcing rib; 702, connecting jacket; 703, filler; 1101, through hole; 1102, damping hole.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example.

Example 1

Please refer to Figures 1 to 3 and 6. The present utility model provides a technical solution: a shock-absorbing device for a hydraulic machine, including a buffer member 2 104, a storage platform 9, a shock-absorbing mechanism 3 and a floor 1. A shock-proof device is provided in the floor 1. The anti-seismic ditch 102 is in the shape of a square circle. The buffer part 104 is installed in the anti-seismic ditch 102. Steel sheet piles 101 are fixedly installed on both sides of the anti-seismic ditch 102. The upper surface of the storage table 9 is placed with a buffer part 10. A support member 103 is fixedly connected to the upper surface of the second piece 104. A hydraulic column 6 is fixedly installed in the support member 103. Four limiting columns 4 are fixedly connected to the lower part of the supporting member 103. The outside of the limiting column 4 is slidingly connected to a movable plate. 5. The movable plate 5 and the hydraulic column 6 are fixedly connected. The material of the buffer member 10 is wooden board. The buffer member 10 is coaxial with the hydraulic column 6. The upper surface of the support member 103 is fixedly connected with a flexible connector 7. The flexible connector 7 It includes a connecting jacket 702, a filler 703 and a reinforcing rib 701. The connecting jacket 702 is made of rubber. The material of the filling 703 can be textile or sand. The filler 703 is filled in the connecting jacket 702. The reinforcing rib 701 is fixedly installed on the connecting jacket. On the upper surface of 702, the motor 8 is fixedly installed on the upper surface of the connecting jacket 702, and the motor 8 is fixedly connected to the reinforcing rib 701.

When in use, it should be noted that the accompanying drawing is a schematic diagram, and devices such as the filling pipe used to replenish oil to the hydraulic column 6 are not shown. The connection between the motor 8 and the hydraulic column 6 has also been omitted. When installing this device, first Dig a circle of anti-seismic trenches 102 around the device, and lay steel sheet piles 101 on both sides of the anti-seismic trench 102 to reduce the impact of vibrations generated by adjacent mechanisms and avoid damage caused by resonance. The lower part of the device is laid out The buffer piece 2 104 and the buffer piece 10 set on the storage table 9 are both made of wood and other materials to absorb shock waves, and have a shock-absorbing effect without affecting the stamping work; they are set at the connection between the motor 8 and the support 103 The flexible connector 7 is configured through the cooperation of the connecting jacket 702, the filler 703 and the reinforcing rib 701. The reinforcing rib 701 fixes the position of the motor 8 and reduces the vibration amplitude of the motor 8. The connecting jacket 702 can shake slightly to reduce the transmission of vibration and It has the effect of reducing noise. The filler 703 absorbs shock waves and achieves a shock-absorbing effect.

Example 2

Please refer to Figures 1, 3 to 5. The present utility model provides a technical solution: a shock absorbing device for a hydraulic machine. A plurality of shock absorbing mechanisms 3 are fixedly installed on the upper surface of the buffer member 2 104. The shock absorbing mechanisms 3 include a cavity. Chamber one 301, chamber two 302 is inserted into chamber one 301, one end of chamber two 302 is fixedly installed with piston 11, and the other end of chamber two 302 is fixedly connected with funnel-shaped receiving member 303, and there are separate openings in piston 11 There is a through hole 1101 and a damping hole 1102. A one-way valve 12 is inserted and fixed in the through hole 1101. The one-way valve 12 is connected from chamber two 302 to chamber one 301. The shape of the damping hole 1102 is an elongated hole and is thin. The ratio of the aperture to the length of the long hole is greater than four. Both chamber one 301 and chamber two 302 are filled with oil 13. The inner bottom wall of chamber one 301 is fixedly connected with a buffer spring 2, and the buffer spring 2 is fixed to the piston 11. connection, the bottom of the funnel-shaped receiving member 303 is fixedly connected with a vertical spring 304, the side of the funnel-shaped receiving member 303 is fixedly connected with a number of tilt springs 305, one end of the vertical spring 304 is fixedly connected with the limiter 306, and the limiter 306 The shape is a circular cone, the funnel-shaped receiving member 303 is parallel to the outside of the limiting member 306, the number of tilt springs 305 is greater than three, and is distributed annularly about the axis of the funnel-shaped receiving member 303, and the lower part of the limiting column 4 is plugged into the limiting member. In the positioning member 306, a plurality of tilt springs 305 are fixedly connected to the limiting member 306, and the storage table 9 is fixedly installed on the upper surface of the limiting member 306.

When in use, the hydraulic column 6 falls and punches the material placed on the upper surface of the buffer member 10. The buffer member 10 absorbs part of the vibration energy and then conducts the force to the storage platform 9. The storage platform 9 evenly distributes the force to four shock absorbers. On the funnel-shaped receiving member 303 of the mechanism 3, the force of the funnel-shaped receiving member 303 is transmitted to the second chamber 302 through a plurality of tilt springs 305 and a vertical spring 304. The second chamber 302 is forced to move downward, and the inner chamber 301 is The oil 13 enters the second chamber 302 through the damping hole 1102 opened in the piston 11. Due to the slender hole design adopted in the damping hole 1102, the damping force of the flow channel can be increased, so that the rapid changes in the fluid can be smoothed down through the damping hole 1102. Due to the shock effect, the buffer spring 2 at the lower part of the piston 11 prevents excessive impact from damaging the device. After the impact, the oil 13 in the chamber two 302 flows back to the chamber one 301 through the one-way valve 12. At this time, the buffer Spring 2 also plays a reset role.

The above are only preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed by the present utility model, implement the present utility model according to the present utility model. Novel technical solutions and utility model concepts, including equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims (7)

1. The utility model provides a damping device for hydraulic press, includes cushioning part two, puts thing platform, damper and ground, its characterized in that: the anti-vibration floor comprises a floor body, wherein an anti-vibration ditch is formed in the floor body, steel sheet piles are fixedly arranged on two sides of the anti-vibration ditch, a first buffer piece is arranged on the upper surface of the object placing table, a supporting piece is fixedly connected to the upper surface of the second buffer piece, a flexible connecting piece is fixedly connected to the upper surface of the supporting piece, the flexible connecting piece comprises a connecting jacket, a filler and reinforcing ribs, the filler is filled in the connecting jacket, the reinforcing ribs are fixedly arranged on the upper surface of the connecting jacket, a motor is fixedly arranged on the upper surface of the connecting jacket, and the motor is fixedly connected with the reinforcing ribs; a plurality of damper fixedly mounted have install the upper surface at cushioning spare two, damper includes cavity one, peg graft in the cavity one have cavity two, the one end fixed mounting of cavity two has the piston, the other end fixedly connected with funnel form of cavity two accepts the piece, through-hole and damping hole have been equipped with respectively in the piston, peg graft in the through-hole and be fixed with the check valve, the interior bottom wall fixedly connected with cushion spring of cavity one, cushion spring and piston fixed connection, the bottom fixedly connected with vertical spring of funnel form accepts the piece, the side fixedly connected with of funnel form accepts a plurality of slope springs, the one end fixedly connected with locating part of vertical spring, a plurality of slope springs all with locating part fixed connection, put thing platform fixed mounting at the upper surface of locating part.

2. The damping device for a hydraulic machine according to claim 1, wherein: the shockproof ditch is square and ring-shaped, and the second buffer part is arranged in the shockproof ditch.

3. The damping device for a hydraulic machine according to claim 1, wherein: the hydraulic column is fixedly installed in the supporting piece, four limit columns are fixedly connected to the lower portion of the supporting piece, the movable plate is connected to the outside of the limit columns in a sliding mode, and the movable plate is fixedly connected with the hydraulic column.

4. A shock absorbing device for a hydraulic machine according to claim 3, wherein: the first buffer piece is made of a wood board and is coaxial with the hydraulic column.

5. The damping device for a hydraulic machine according to claim 1, wherein: the connecting jacket is made of rubber, and the filler can be made of textile or sand.

6. The damping device for a hydraulic machine according to claim 1, wherein: the one-way valve is communicated from the second chamber to the first chamber, the damping hole is in a shape of an elongated hole, the ratio of the aperture to the length of the elongated hole is greater than four, and oil is filled in both the first chamber and the second chamber.

7. The damping device for a hydraulic machine according to claim 1, wherein: the shape of the limiting piece is round table, the funnel-shaped supporting piece is parallel to the outer portion of the limiting piece, the number of the inclined springs is greater than three, the inclined springs are distributed annularly about the axis of the funnel-shaped supporting piece, and the lower portion of the limiting column is inserted into the limiting piece.