CN217753456U - Shock-absorbing device - Google Patents

Abstract

The utility model relates to a damping device, only can provide two ascending shock attenuation buffering problems of side for solving current damping device, the utility model discloses construct a damping device, it includes the upper bracket, the undersetting and the bolt assembly who will go up lower support locking connection, be provided with on the undersetting with the upper bracket on the lower V-arrangement board of last V-arrangement board looks adaptation, the shock pad that the installation was V-arrangement and was arranged between the upper and lower V-arrangement board, the upper bracket is still including being fixed in the tip of V-arrangement board one end tip on the swash plate, the central plane symmetry setting of swash plate about last V-arrangement board on the tip, the inslot of lower V-arrangement board is fixed be provided with the tip of tip upper swash plate looks adaptation under the swash plate with the tip, it is provided with the terminal surface shock pad to press from both sides tightly between the swash plate under tip swash plate and the tip. The utility model discloses in, the shock pad that the terminal surface shock pad was arranged with the V-arrangement can carry out the shock attenuation buffering in three direction, ensures its shock attenuation effect.

Description

Shock-absorbing device

Technical Field

The utility model relates to a damping device.

Background

The engine of a construction machine, such as a loader, is usually mounted on a frame using a shock absorbing device. The damping device comprises an upper support and a lower support, and the upper support and the lower support are respectively and fixedly connected with the engine and the frame. The upper support and the lower support are respectively provided with a V-shaped plate, a shock pad arranged in a V shape is placed between the upper V-shaped plate and the lower V-shaped plate, and the shock pad is extruded when the upper support moves downwards along with the engine, so that the aim of buffering and shock absorption is fulfilled.

The loader is an engineering machine, the working environment is severe, and the whole loader often fluctuates violently. The wave motion includes up-down direction wave motion, front-back direction wave motion, and left-right direction wave motion. The engine is usually mounted on its left and right sides by two dampers connected to the frame (in the dampers, the horizontal direction in the center plane of the V-shaped plate is the left-right direction). At present, the damping device can play a role in damping and buffering in the vertical and front-back directions in a mounting mode, but cannot play a good role in damping and buffering in the left-right direction.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that current damping device only can provide two ascending shock attenuation buffering problems of side, and provides a damping device, realizes the ascending shock attenuation of three side.

The utility model discloses a realize that the technical scheme of its purpose is like: the utility model provides a damping device, its includes upper bracket, undersetting and the bolt assembly who will go up support locking connection, be provided with on the undersetting with the lower V-arrangement board of last V-arrangement board looks adaptation on the upper bracket, the shock pad that the installation was V-arrangement between the upper and lower V-arrangement board, its characterized in that the upper bracket is still including being fixed in the tip swash plate of going up V-arrangement board one end tip, the tip swash plate about the central plane symmetry of going up the V-arrangement board sets up, the inslot of V-arrangement board is fixed be provided with the tip swash plate looks adaptation under the tip swash plate of tip down, and it is provided with the terminal surface shock pad to press from both sides tightly between tip swash plate and the tip under the swash plate.

The utility model discloses in, the shock pad that the V-arrangement was arranged can carry out the shock attenuation buffering in X direction and Z direction, and the terminal surface shock pad can carry out the shock attenuation buffering in the Y direction to the realization is carried out the shock attenuation buffering in three direction. Wherein the X direction is a vertical direction, the Z direction is a direction perpendicular to the central plane of the upper V-shaped plate, and the Y direction is a direction perpendicular to both the X direction and the Z direction.

The utility model discloses in, tip upper inclined plate be with go up the perpendicular dull and stereotyped of midplane of V-arrangement board, tip lower inclined plate with tip upper inclined plate parallel arrangement. Furthermore, the included angle between the upper inclined plate at the end part and the vertical direction is equal to the included angle between the inclined plate of the upper V-shaped plate and the vertical direction.

In the utility model, a horizontal plate vertical to the central plane of the upper V-shaped plate is arranged on the upper side of the upper V-shaped plate, and two sides of the horizontal plate are welded with the two inclined plates of the upper V-shaped plate; the bolt assembly is arranged on the central plane of the upper V-shaped plate, the upper end of the bolt assembly is connected with the horizontal plate, and a bolt in the bolt assembly penetrates through the horizontal plate, the upper V-shaped plate, the shock pad arranged in a V shape and the lower V-shaped plate and is connected with the lower V-shaped plate at the lower end. The bolt assembly is located on the central plane of the shock pad, when the upper support and the lower support are locked, the forces borne by the shock pad plates on two sides of the V-shaped shock pad are equal, the stress on the support is balanced, and unbalance loading is avoided.

The utility model discloses in, bolt assembly includes top board, bolt, gasket and nut, the top board is arranged the upside of horizontal plate, install between horizontal plate and top board by the last shock pad of bolt assembly locking. The upper shock pad realizes the shock absorption and buffering functions when the upper support moves upwards.

The utility model discloses in, damping device still includes the rigidity support sleeve, rigidity support sleeve suit is in on the bolt when the shock pad that the V-arrangement was arranged was compressed to predetermined thickness the upper end of rigidity support sleeve with the downside counterbalance contact of horizontal plate is connected, the lower extreme of rigidity support sleeve with the undersetting counterbalance contact is connected or fixed connection.

The utility model discloses in, the shock pad that the V-arrangement was arranged respectively is provided with at least one on the shock pad board of its both sides and holds the through-hole, each hold and install the rigidity supporting shoe in the through-hole when the shock pad that the V-arrangement was arranged is compressed to predetermined thickness the lower both ends correspondence of rigidity supporting shoe is connected with the downside of last V-arrangement board and the contact of V-arrangement board counterbalance down. The rigid supporting block is arranged between the upper V-shaped plate and the lower V-shaped plate, and the structure is simple and the reliability is high.

In the present invention, the rigid support block is disposed between the upper V-shaped plate and the lower V-shaped plate and is disposed symmetrically with respect to a center plane of the upper V-shaped plate. The rigid supporting block is one of a hexahedral steel block, a steel ball and a steel cylinder.

The utility model discloses in, hold the through-hole with be interference fit between the rigidity supporting shoe, usable shock pad retrains simple to operate.

Stress extrusion shock pad on upper bracket and the undersetting, when the relative undersetting of upper bracket removed down and makes the shock pad compress to the predetermined value, the upper and lower both ends of rigidity supporting sleeve or rigidity supporting shoe are connected with upper bracket and undersetting contact respectively, prevent the upper bracket to continue the undersetting and remove, avoid the shock pad excessive compression, ensure that the shock pad compresses at the elastic range, can not be in the use by excessive compression and lose elasticity, ensure its shock attenuation effect.

Compared with the prior art, the utility model discloses in, the groove at the tip of last V-arrangement board and lower V-arrangement board sets up tip swash plate and tip swash plate down respectively to install the tip shock pad under tip swash plate and tip between the swash plate, the shock pad that the terminal surface shock pad was arranged with the V-arrangement can carry out the shock attenuation buffering in three direction, ensures its shock attenuation effect.

Drawings

Fig. 1 is a schematic structural view of the damping device of the present invention.

Fig. 2 is a view of the damping device of the present invention in the Z direction.

Fig. 3 is a schematic cross-sectional view of the damping device of the present invention in the XZ plane direction.

Fig. 4 is a schematic cross-sectional view of the damping device of the present invention in the XY plane direction.

Fig. 5 is a schematic cross-sectional view of a second embodiment of the damping device of the present invention in the XY plane direction.

Part names and serial numbers in the figure:

the device comprises an upper support 10, an upper V-shaped plate 11, a horizontal plate 12 and an end surface upper inclined plate 13.

V-shaped shock pad 21, end face shock pad 22, upper shock pad 23 and accommodating through hole 24.

A lower support 30, a lower V-shaped plate 31 and an end surface lower inclined plate 32.

Bolt assembly 50, bolt 51, upper pressure plate 52, nut 53, lower gasket 54.

An upper sleeve 71, a lower sleeve 72 and a steel column 73.

Detailed Description

The following description of the embodiments refers to the accompanying drawings.

As shown in fig. 1, the shock absorbing device in this embodiment includes an upper support 10, a lower support 30, and a bolt assembly 50 for locking the upper and lower supports. The damping device is commonly used for fixedly mounting an engine on a frame of an engineering machine, wherein the upper support 10 is fixedly connected with the engine through a bolt, and the lower support 30 is fixedly connected with the frame through welding or a bolt.

The upper support 10 is provided with an upper V-shaped plate 11, and the lower support 30 is provided with a lower V-shaped plate 31. The notches of the upper V-shaped plate 11 and the lower V-shaped plate 31 are arranged upwards, the upper V-shaped plate 11 is positioned above the lower V-shaped plate 31, and the central planes of the upper V-shaped plate and the lower V-shaped plate coincide. The inclined plates on the two sides of the upper V-shaped plate 11 are respectively parallel to the inclined plates on the two sides of the lower V-shaped plate 31. A shock pad arranged in a V shape is installed between the upper V-shaped plate 11 and the lower V-shaped plate 31. The centre plane of the shock-absorbing pad of the V-shaped arrangement coincides with the centre plane of the upper V-shaped plate 11.

In this embodiment, the shock absorbing pad arranged in a V shape is a V-shaped shock absorbing pad 21, the shock absorbing pad plates on two sides of the V-shaped shock absorbing pad 21 are connected with each other at the bottom, and are a part, and are symmetrical about the central plane, and the bottom of the shock absorbing pad is provided with a hole for passing a bolt. The bolt 51 in the bolt assembly 50 passes through the hole at the bottommost part of the V-shaped shock pad 21 to limit the V-shaped shock pad 21, and the V-shaped shock pad 21 is prevented from falling off between the upper V-shaped plate 11 and the lower V-shaped plate 31 in the using process.

In other embodiments, the two shock absorbing pads arranged in the V-shape may also be two shock absorbing pads symmetrically arranged about the central plane of the upper V-shaped plate, and are two independent parts, that is, the two shock absorbing pads are respectively arranged between the inclined plates on both sides of the upper V-shaped plate 11 and the inclined plates on both sides of the lower V-shaped plate 31, and the two shock absorbing pads are not connected with each other. When the shock pad arranged in the V shape is composed of two independent shock pads, an anti-dropping limiting device, such as a baffle plate or a screw, needs to be arranged on the upper support or the lower support to limit the shock pad between the upper V-shaped plate and the lower V-shaped plate.

The upper side of the upper V-shaped plate 11 is provided with a horizontal plate 12 vertical to the central plane of the upper V-shaped plate 11, and the two sides of the horizontal plate 12 are correspondingly welded with the inclined plates at the two sides of the upper V-shaped plate 11.

The bolt assembly 50 includes a bolt 51, an upper pressure plate 52, a lower washer 54, and a nut 53. The bolt assemblies 50 are arranged on the center planes of the upper and lower V-shaped plates and the V-shaped cushion 21. The upper pressure plate 52 is disposed on the upper side of the horizontal plate 12, and the upper cushion 23 is installed between the upper pressure plate 52 and the horizontal plate 12. The bolt 51 passes through the upper pressing plate 52, the upper shock pad 23, the horizontal plate 12, the upper V-shaped plate 11, the V-shaped shock pad 21 (or a gap between the upper V-shaped plate and the lower V-shaped plate), the lower V-shaped plate 31, and the lower pad 54 in sequence from top to bottom, and then is in threaded fit with the nut 53, so as to fixedly connect the upper support 10 and the lower support 30.

The bolt assembly 50 connects the upper and lower cradles 10 and 30. The V-shaped cushion 21 and the upper cushion 23 have a certain pre-compression amount after the shock-absorbing device is installed, so that the shock-absorbing device has a certain rigidity. When the upper support 10 descends relative to the lower support to cause the V-shaped shock pad 21 to be compressed, the distance between the horizontal plate 12 and the lower end (nut) of the bolt is reduced, the reduction is the compression amount of the V-shaped shock pad 21 in the vertical direction, the distance between the horizontal plate 12 and the upper end (bolt head) of the bolt is correspondingly increased, and at the moment, the upper shock pad 23 recovers the corresponding compression amount under the elastic action. Accordingly, when upper support 10 moves upward relative to lower support 30, upper cushion 23 is further compressed, and V-shaped cushion 21 is restored to the corresponding compression amount by its elasticity. Therefore, when the upper support 10 moves up and down relative to the lower support 30, the bolt assembly is still kept fixed relative to the upper support and the lower support under the pre-compression elastic force of the upper shock absorption pad 23 or the V-shaped shock absorption pad 21, and the phenomenon that the bolt is loosened relative to the upper support and the lower support cannot occur.

The centrally arranged bolt assembly 50 easily enables the stress on the two sides of the central plane of the upper V-shaped plate and the lower V-shaped plate to be equal to that on the two sides of the V-shaped shock pad 21, and damage caused by uneven stress on the two sides of the shock pad is not easy to occur.

As shown in fig. 4, the upper support 10 further includes an end upper inclined plate 13 welded and fixed to one end of the upper V-shaped plate 11, and the end upper inclined plate 13 is symmetrically disposed with respect to a central plane of the upper V-shaped plate 11.

An end lower inclined plate 32 is welded and fixed in the groove of the lower V-shaped plate 31, the end lower inclined plate 32 and the end upper inclined plate 13 are arranged in parallel, an end face shock pad 22 is arranged between the end upper inclined plate 13 and the end lower inclined plate 32, the upper side face and the lower side face of the end face shock pad 22 are respectively in contact connection with the end upper inclined plate 13 and the end lower inclined plate 32, and the end face shock pad is tightly pressed and fixed between the end upper inclined plate 13 and the end lower inclined plate 32. In order to prevent the end face shock pad 22 from falling off in the using process, a limiting block or a limiting screw and the like can be arranged on the end part upper inclined plate or the end part lower inclined plate to limit the end face shock pad.

In the present embodiment, as shown in fig. 2, the vertical direction of the vibration damper when used after being mounted on the machine is the X direction, the direction perpendicular to the center plane of the upper V-shaped plate is the Z direction, and the direction perpendicular to both the X direction and the Z direction is the Y direction.

The included angle between the end upper inclined plate 13 and the vertical direction (X direction) is equal to the included angle between the inclined plates at two sides of the upper V-shaped plate 11 and the vertical direction.

Because damping device all is installed in pairs when the installation is used, two damping device that install in pairs can realize the two-way shock attenuation buffering in Y direction. In this embodiment, the V-shaped shock pad 21 can perform shock absorption and buffering in the X direction and the Z direction, and the end face shock pad 22 can perform shock absorption and buffering in the Y direction, so as to perform shock absorption and buffering in three directions.

In this embodiment, when the engine moves upward relative to the frame, the lower end of the bolt assembly 50 acts on the lower support to fix relative to the frame, and the horizontal plate 12 presses the upper cushion 23 upward to realize upward buffering.

As shown in fig. 3 and 4, the rigid support member is formed by an upper sleeve 71 and a lower sleeve 72 that fit over the bolts in the bolt assembly. The upper sleeve 71 is a T-shaped sleeve with a large-diameter end at the upper end, and the lower sleeve 72 is a straight sleeve with the lower end welded with the lower V-shaped plate 31. The upper sleeve 71 is located between the horizontal plate 12 and the upper V-shaped plate 11, the upper end of the lower sleeve 72 extends upward through the V-shaped cushion 21, and when the upper support 10 moves downward, the upper end of the lower sleeve 71 moves upward through the hole in the upper V-shaped plate 11 relative to the upper support until it is connected in abutting contact with the lower end of the upper sleeve 71.

In this embodiment, the lower sleeve 71 may also be a T-shaped sleeve with a large diameter end at the lower end, and in this case, the lower sleeve 71 is also sleeved on the bolt, and the lower end of the lower sleeve is connected to the upper side surface of the lower V-shaped plate 31 in an abutting contact manner.

In this embodiment, the upper sleeve 71 and the lower sleeve 72 may be combined into a straight sleeve or a T-shaped sleeve with the same upper and lower diameters, the sleeve is installed from bottom to top, the upper end of the sleeve penetrates through the V-shaped cushion 21 and the upper V-shaped plate 11, and when the upper support 10 is stationary relative to the lower support 30, at least one of the lower side surface of the horizontal plate 12 and the upper side surface of the lower V-shaped plate 31 has a gap with the corresponding end of the sleeve.

In the embodiment, when the engine moves downwards relative to the frame, the upper V-shaped plate 11 of the upper support 10 presses the V-shaped shock pad 21, so as to realize downward buffering and shock absorption. When the impact of downward movement of the engine is too large, and the V-shaped shock absorption pad 21 and the end shock absorption pad 22 are compressed to a predetermined thickness, the upper end and the lower end of the upper sleeve 71 are respectively connected with the lower side surface of the horizontal plate 12 and the upper end of the upper sleeve 72 in an abutting contact manner, the upper sleeve 71 and the lower sleeve 72 support the upper support 10, and the upper V-shaped plate 11 is prevented from continuously moving downwards relative to the lower V-shaped plate 31 to compress the V-shaped shock absorption pad and the end shock absorption pad, so that the shock absorption pad is not excessively compressed to damage the elasticity of the shock absorption pad. Ensure that the shock pad compresses in the elasticity within range to guarantee its shock attenuation effect. When the shock pad is compressed to a preset thickness, the shock pad reaches the maximum allowable compression amount, if the shock pad is continuously compressed, the elasticity of the shock pad can be damaged, and the shock pad cannot recover the original state after the acting force is eliminated.

This embodiment also provides another embodiment of the rigid support member in the shock absorbing device, as shown in fig. 5. In this embodiment, the rigid support is constituted by a plurality of steel columns 73 arranged between the upper V-shaped plate 11 and the lower V-shaped plate 31. A plurality of receiving through-holes 24 for receiving the steel columns 73 are provided on the V-shaped cushion 21, the plurality of receiving through-holes 24 are symmetrically arranged about a central plane of the upper V-shaped plate, one steel column 73 is disposed at each receiving through-hole 24, and an axial direction of the steel column 73 is perpendicular to the inclined plates on the corresponding sides of the upper and lower V-shaped plates. The diameter of the steel column 73 is slightly larger than the aperture of the receiving through-hole so that the steel column does not fall out of the receiving through-hole during installation.

In this embodiment, when the machine is at rest and there is no vibration, the axial height of the steel column 73 is smaller than the shortest distance between the upper V-shaped plate 11 and the lower V-shaped plate 31. When the machine is in operation and the shock pad is compressed to a predetermined thickness, the two ends of the steel column 73 are respectively in contact connection with the upper V-shaped plate 11 and the lower V-shaped plate 31 to support the upper support 10, so that the shock pad is prevented from being excessively compressed.

In this embodiment, the steel column 73 may be replaced by a steel ball or a hexahedral steel block (e.g., a rectangular or square steel block). The steel column 73 or steel ball may be provided in the end surface cushion 22 between the end surface upper inclined plate 13 and the end surface lower inclined plate 32.

Claims (10)

1. The utility model provides a damping device, its includes upper bracket, undersetting and the bolt assembly who will go up undersetting locking connection, be provided with on the undersetting with the lower V-arrangement board of last V-arrangement board looks adaptation on the upper bracket, the shock pad that the installation was V-arrangement and arranged between the upper and lower V-arrangement board, its characterized in that the upper bracket is still including being fixed in the tip swash plate of going up V-arrangement board one end tip, the tip swash plate about the central plane symmetry of going up the V-arrangement board sets up, the inslot of V-arrangement board is fixed be provided with down the tip swash plate with tip swash plate looks adaptation down, presss from both sides tightly between tip swash plate and tip under the tip and is provided with the terminal surface shock pad.

2. The shock absorbing device as set forth in claim 1, wherein said end upper sloping plate is a flat plate perpendicular to a central plane of said upper V-shaped plate, and said end lower sloping plate is arranged in parallel with said end upper sloping plate.

3. The shock absorbing device as claimed in claim 2, wherein the angle between the end upper inclined plate and the vertical direction is equal to the angle between the inclined plate of the upper V-shaped plate and the vertical direction.

4. The damping device according to any one of claims 1 to 3, wherein a horizontal plate perpendicular to the central plane of the upper V-shaped plate is arranged on the upper side of the upper V-shaped plate, and two sides of the horizontal plate are welded with the two inclined plates of the upper V-shaped plate; the bolt assembly is arranged on the central plane of the upper V-shaped plate, the upper end of the bolt assembly is connected with the horizontal plate, and a bolt in the bolt assembly penetrates through the horizontal plate, the upper V-shaped plate, a shock pad arranged in a V-shaped mode and the lower V-shaped plate and is connected with the lower V-shaped plate at the lower end.

5. The shock-absorbing device according to claim 4, wherein the bolt assembly comprises an upper pressing plate, a bolt, a washer and a nut, the upper pressing plate is disposed on the upper side of the horizontal plate, and an upper shock-absorbing pad locked by the bolt assembly is installed between the horizontal plate and the upper pressing plate.

6. The cushioning device of claim 5, further comprising a rigid support sleeve received over said bolt, an upper end of said rigid support sleeve being in abutting contact with an underside of said horizontal plate and a lower end of said rigid support sleeve being in abutting contact with or fixedly attached to said lower abutment when said V-shaped arrangement of cushioning pads is compressed to a predetermined thickness.

7. The damping device according to claim 5, wherein the damping pad of the V-shaped arrangement is provided with at least one receiving through hole on each of the damping pad plates at both sides thereof, a rigid support block is installed in each receiving through hole, and when the damping pad of the V-shaped arrangement is compressed to a predetermined thickness, the upper and lower ends of the rigid support block are correspondingly connected in contact with the lower side surface of the upper V-shaped plate and the lower V-shaped plate.

8. The shock absorbing device as claimed in claim 7, wherein said rigid support block arrangement disposed between said upper and lower V-shaped plates is disposed symmetrically about a central plane of the upper V-shaped plate.

9. The apparatus according to claim 7, wherein said receiving bore is an interference fit with said rigid support block.

10. The shock absorbing device as claimed in any one of claims 7 to 9, wherein said rigid support block is one of a hexahedral steel block, a steel ball, a steel cylinder.

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