CN212450379U

CN212450379U - Support device and working machine

Info

Publication number: CN212450379U
Application number: CN202020951273.5U
Authority: CN
Inventors: 刘蜜; 熊剑波
Original assignee: Sany Automobile Manufacturing Co Ltd
Current assignee: Sany Automobile Manufacturing Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-02-02
Anticipated expiration: 2030-05-29

Abstract

The utility model provides a strutting arrangement and operation machinery, strutting arrangement locate between first cantilever crane and the second cantilever crane for support the second cantilever crane. The supporting device comprises: the supporting seat is arranged on the first arm support; one end of the elastic piece is connected with the supporting seat; the supporting plate is connected with the other end of the elastic piece and used for supporting the second arm support; the first limiting part is connected to the first end of the supporting seat in a sliding mode, and at least one part of the first limiting part extends out of the supporting plate; the second limiting part is arranged at the second end of the supporting plate, and the second end is the end of the supporting plate far away from the first limiting part; the supporting plate is used for driving the first limiting portion to slide towards the second limiting portion under the action of pressure. The utility model discloses a set up first spacing portion and the tight second cantilever crane of spacing portion clamp of second respectively at the relative both ends of backup pad, realized the limit function to the second cantilever crane, reduced the production that the second cantilever crane warp.

Description

Support device and working machine

Technical Field

The utility model relates to a mechanical equipment technical field particularly, relates to a strutting arrangement and operation machinery.

Background

In the related art, the arm support is arranged between two adjacent support pump truck arm supports and used for supporting the truck arm supports positioned above the two adjacent support pump truck arm supports, so that rigid collision cannot occur between the two truck arm supports after the truck arm supports are folded, and meanwhile, the adjacent truck arm supports can be completely attached to each other. The existing arm support has no limiting function on two opposite sides, so that the arm support is easy to deform.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve at least one of the above technical problems.

An object of the utility model is to provide a strutting arrangement.

A second object of the present invention is to provide a working machine.

For realizing the utility model discloses a first purpose, the embodiment of the utility model provides a support arrangement locates between first cantilever crane and the second cantilever crane for support the second cantilever crane, support arrangement includes: the supporting seat is arranged on the first arm support; one end of the elastic piece is connected with the supporting seat; the supporting plate is connected with the other end of the elastic piece and used for supporting the second arm support; the first limiting part is connected to the first end of the supporting seat in a sliding mode, and at least one part of the first limiting part extends out of the supporting plate; the second limiting part is arranged at the second end of the supporting plate, and the second end is the end of the supporting plate far away from the first limiting part; the supporting plate is used for driving the first limiting portion to slide towards the second limiting portion under the action of pressure.

In the technical scheme, the supporting seat can be set to be of a structure comprising a bottom plate and two side plates, the two side plates are arranged on one surface of the bottom plate at intervals, a clamping groove structure is formed between the two side plates and the bottom plate, the first arm support is clamped into the clamping groove structure towards one side of the second arm support, one side surface of the bottom plate faces the second arm support, the part, located in the clamping groove structure, of the other side surface of the bottom plate is abutted to one end, facing the second arm support, of the first arm support, the two side plates are clamped with the two opposite sides of the first arm support respectively, and therefore the supporting seat can be guaranteed to be arranged on the first arm support more firmly, and the. The bottom plate can be bent to form a bent part to serve as a side plate located on the edge, and the structure of the supporting seat is simplified. The first limiting part and the second limiting part are respectively arranged on two opposite sides of the supporting plate, so that a groove structure is formed among the first limiting part, the second limiting part and the supporting plate and can be used for accommodating at least one part of the second arm support facing the first arm support, the side face of one side of the second arm support facing the first arm support is mutually abutted to the supporting plate, the supporting plate is made to form a supporting effect on the second arm support, and the elastic piece is arranged between the supporting seat and the supporting plate. The elastic component can be the spring, and the supporting seat has a plurality of spacing grooves towards the one side equipartition of backup pad, and the one end of spring is fixed in the spacing inslot, and the other end and the backup pad of spring are connected, and the spring can play the effect of support to the backup pad, can also further play the cushioning effect, has further prevented that the second cantilever crane from producing the deformation.

When the supporting plate receives the pressure action of the second arm support, the first limiting part can be driven to slide towards the second limiting part, so that the first limiting part is close to the second limiting part, the second limiting part is matched to clamp the second arm support, a limiting effect is formed on the second arm support, and the deformation of the second arm support can be effectively controlled. When the pressure action of the second arm support disappears, the first limiting part is far away from the second limiting part, and the clamping of the second arm support can be loosened. The second limiting part is formed by bending one end of the support plate far away from the first limiting part, and the end part of the bent part is bent outwards again to form an arc-shaped structure.

Additionally, the utility model provides a technical scheme can also have following additional technical characterstic:

among the above-mentioned technical scheme, first spacing portion includes: the sliding chute is arranged on the supporting seat; one end of the sliding block is positioned in the sliding groove, and the other end of the sliding block penetrates through the supporting plate; and the thrust structure is arranged on the supporting plate and used for pushing the sliding block to slide towards the direction close to the second limiting part.

In the technical scheme, the sliding groove is formed in the bottom plate, the lower end face of the sliding block is in contact with the groove bottom of the sliding groove, the sliding block is pushed by the thrust structure to slide in the sliding groove, and the sliding device is simple and reliable in structure and convenient to operate.

In any of the above technical solutions, the method further includes: one end of the guide post is connected with the supporting seat, and the other end of the guide post penetrates through the supporting plate, so that the supporting plate can slide along the axial direction of the guide post; wherein, the slider is provided with the inclined plane, from the first end to the second end of backup pad, and the inclined plane inclines towards one side of backup pad, and at least part and the inclined plane of thrust structure contact each other to push the slider slip under the pressure effect of backup pad.

In the technical scheme, the guide post is arranged on the supporting seat, the supporting plate is provided with the through hole so as to enable the guide post to be communicated, the supporting plate can slide up and down relative to the supporting seat through the guide post, the thrust structure is arranged on the supporting plate, when the second arm support is placed on the bottom plate between the sliding block and the second limiting part, the bottom plate enables the supporting plate to slide down along the guide post so as to be close to the supporting seat under the action of gravity of the second arm support, at the moment, the thrust structure extrudes the inclined surface, so that the sliding block slides towards the direction close to the second limiting part, and therefore, the sliding block and the second limiting part act together to clamp the second arm. The sliding block generates extrusion force on the second arm support under the action of the gravity of the second arm support, and the device is simple in structure and convenient to operate.

In any one of the above technical solutions, the thrust structure includes: the pressing block is arranged on one surface of the supporting plate facing the supporting seat; wherein, the briquetting has the arcwall face, is used for contacting each other with the inclined plane.

In this technical scheme, the briquetting is fixed to be located in the backup pad as thrust structure, and wherein, the briquetting is close to inclined plane department and is equipped with the arcwall face, and the arcwall face contacts with the inclined plane each other, can make the slider more steady at gliding in-process.

In any of the above technical solutions, the thrust structure further includes: a cam roller or bearing; wherein at least a part of the rolling surface of the cam roller or the rolling surface of the bearing and the inclined surface are in contact with each other.

In the technical scheme, the cam roller or the bearing is in contact with the inclined surface under the action of gravity of the second arm support so as to start to rotate, then the sliding block is driven to slide by the rolling of the cam roller or the bearing under the action of acting force and reaction force, so that the movement between the thrust structure and the sliding block is changed from rolling to sliding, and the sliding of the sliding block can be more stable.

In any of the above technical solutions, the supporting device further includes: the first buffer piece is arranged on one side of the sliding block facing the second limiting part; wherein, the first bolster is located the top of backup pad.

In the technical scheme, one side of the sliding block, which is close to the second arm support, is provided with a planar structure, the first buffer part can be an elastic pad, and the elastic pad is attached to the planar structure and is used for being mutually abutted against at least one part of the outer side surface of the second arm support so as to play an elastic supporting role for the second arm support, absorb a part of deformation, and further play a role in preventing deformation for the second arm support.

In any of the above technical solutions, the supporting device further includes: and the positioning assembly is arranged between the supporting seat and the supporting plate and used for limiting the position of the supporting plate.

In the technical scheme, the second arm support continuously applies pressure to the supporting plate due to the self weight of the second arm support, and the second arm support can bounce due to shaking, so that the position of the supporting plate fluctuates up and down, and the second arm support also fluctuates up and down along with the position of the supporting plate, so that the second arm support is easy to deform. The positioning component is arranged between the supporting plate and the supporting seat, and when the supporting plate falls to a certain degree, the positioning component can be fixed at the position, so that the second arm support can also keep the relatively fixed position still, therefore, the positioning component is used for limiting the position of the supporting plate moving up and down, and the degree of relative deformation of the second arm support can be further reduced.

In any of the above technical solutions, the positioning assembly includes: the proximity switch is arranged between the supporting seat and the supporting plate and used for sensing the position of the supporting plate; the electromagnet is arranged on one surface, facing the supporting plate, of the supporting seat, and the detection signal of the proximity switch is used for controlling the electrification or the outage of the electromagnet.

In the technical scheme, the supporting plate is preferably a steel plate, the proximity switch is arranged on the guide column, the supporting plate slides from top to bottom along the guide column under the action of gravity of the second arm support, and when the supporting plate is close to the proximity switch, the controller can control the electromagnet to generate current according to signals of the proximity switch, so that a magnetic field is generated, the electromagnet adsorbs the supporting plate, the position of the supporting plate can be limited, and the second arm support is prevented from shaking up and down. When the second arm support on the supporting plate is moved away, the supporting plate moves upwards along the guide post and leaves the proximity switch, the controller can control the electromagnet to be powered off according to the signal of the proximity switch, the magnetic field disappears, and the control is convenient and reliable.

In any of the above technical solutions, the supporting device further includes: the second buffer piece is arranged on the supporting plate between the first limiting part and the second limiting part, and the supporting plate is positioned between the second buffer piece and the supporting seat.

In the technical scheme, the second buffer part comprises a buffer pad and a fastener, the buffer pad is fixed on one surface, facing the second arm support, of the support plate by the fastener, the buffer pad plays a role in buffering the second arm support and can absorb part of deformation, and therefore the second arm support can deform in the vertical direction.

For realizing the utility model discloses a second purpose, the embodiment of the utility model provides an operation machine, include: a chassis; the first arm support is arranged on the chassis; a second arm support; the supporting device in any embodiment is arranged between the first arm support and the second arm support, and the supporting device is used for supporting the second arm support.

In this technical scheme, the utility model provides an operating machine in the embodiment includes the strutting arrangement in any embodiment, therefore, operating machine in this embodiment possesses the whole beneficial effect of the strutting arrangement in any embodiment.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural view of an adjustable arm support supporting device in the related art of the present invention;

fig. 2 is a schematic structural view of a concrete pump truck and a boom buffering and supporting device in the related art of the present invention;

fig. 3 is a schematic perspective view of a supporting device according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a supporting device according to an embodiment of the present invention in a use state;

fig. 5 is a schematic view of a partial cross-sectional structure of a supporting device according to an embodiment of the present invention in a use state;

fig. 6 is a schematic perspective view of a supporting seat of a supporting device according to an embodiment of the present invention;

fig. 7 is a schematic view illustrating a positioning assembly of a supporting device according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:

100': adjustable boom support apparatus, 100 ": a concrete pump truck and a cantilever crane buffer supporting device.

Wherein, the correspondence between the reference numbers and the part names in fig. 3 to 7 is:

100: supporting device, 110: support seat, 112: spacing groove, 120: support plate, 130: first stopper portion, 132: chute, 134: slider, 1342: inclined surface, 136: thrust structure, 138: reset element, 190: guide post, 140: second stopper, 150: elastic member, 160: positioning assembly, 162: proximity switch, 164: an electromagnet, 170: first cushion, 180: second cushion, 200: first arm support, 300: a second arm support.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the related art, as shown in fig. 1, an adjustable arm support device 100' is disclosed, which includes: fixing the supporting plate: the support arm support is used for connecting to the support arm support and forming a support for the supported arm support; the adjusting component: the adjusting device is arranged between the fixed supporting plate and the supporting arm support so as to adjust the installation width of the fixed supporting plate and/or the gap between the supported arm support and the supporting arm support according to the width of the supporting arm support and the height gap standard between the supported arm support and the supporting arm support. The adjustable arm support supporting device 100' is not limited up and down, so that the arm support of the vehicle can be bounced under the bumpy working condition, and the arm support of the vehicle is easy to distort.

As shown in fig. 2, a concrete pump truck and a boom buffering and supporting device 100 "are also disclosed, which can form a certain buffering effect on the truck boom, but when the truck boom vibrates during the driving process of the concrete pump truck, the reliability is low because there are too many hinge points.

Therefore, the present invention proposes a supporting device 100 according to the prior art.

Technical solutions of some embodiments of the present invention are described below with reference to fig. 3 to 7.

Example 1

As shown in fig. 3 and 4, the embodiment provides a supporting device 100, which is disposed between a first arm support 200 and a second arm support 300, and is used for supporting the second arm support 300, where the supporting device 100 includes: the support base 110, the support plate 120, the elastic member 150, the first position-limiting portion 130 and the second position-limiting portion 140, wherein the support base 110 is arranged on the first arm support 200; one end of the elastic member 150 is connected to the supporting base 110; the supporting plate 120 is connected to the other end of the elastic member 150, and the supporting plate 120 is used for supporting the second arm support 300; the first position-limiting portion 130 is slidably connected to the first end of the supporting base 110, and at least a portion of the first position-limiting portion 130 extends out of the supporting plate 120; the second position-limiting part 140 is disposed at a second end of the supporting plate 120, and the second end is the end of the supporting plate 120 away from the first position-limiting part 130; the supporting plate 120 is used to drive the first position-limiting portion 130 to slide toward the second position-limiting portion 140 under the action of pressure.

In this embodiment, the supporting seat 110 may be configured to include a bottom plate and two side plates, the two side plates are disposed on a surface of the bottom plate at intervals, and a slot structure is formed between the two side plates and the bottom plate, so that the first arm support 200 is inserted into the slot structure towards one side of the second arm support 300, a surface of one side of the bottom plate faces the second arm support 300, a portion of the other side of the bottom plate, which is located in the slot structure, abuts against one side of the first arm support 200 facing the second arm support 300, and the two side plates are respectively engaged with two opposite sides of the first arm support 200, so that the supporting seat 110 can be ensured to be more firmly disposed on the first arm support 200, and is convenient to detach. Wherein, the bottom plate can be bent to form a bent portion as a side plate at the edge, simplifying the structure of the supporting seat 110. The first limiting portion 130 and the second limiting portion 140 are respectively disposed on two opposite sides of the support plate 120, so that a groove structure is formed among the first limiting portion 130, the second limiting portion 140 and the support plate 120, and can be used for accommodating at least a portion of the second arm support 300 facing the first arm support 200, so that the first limiting portion 130 and the second limiting portion 140 are mutually matched to clamp the second arm support 300, and limit of the second arm support 300 is formed. The side surface of the second arm support 300 facing the first arm support 200 is abutted against the support plate 120, so that the support plate 120 can support the second arm support 300, and the elastic member 150 is arranged between the support base 110 and the support plate 120; one end of the second buffer member 180 is connected to the supporting base 110, and the other end is connected to the supporting plate 120. The second buffer member 180 is a spring, one surface of the support seat 110 facing the support plate 120 is uniformly provided with a plurality of limiting grooves 112, one end of the spring is fixed in the limiting grooves 112, the other end of the spring is connected with the support plate 120, the spring can support the support plate 120 and further play a role in buffering, and the second arm support 300 is further prevented from deforming.

When the pressure of the second arm support 300 acts on the supporting plate 120, the first limiting portion 130 is driven to slide towards the second limiting portion 140, so that the first limiting portion 130 is close to the second limiting portion 140, the second limiting portion 140 is matched to clamp the second arm support 300, a limiting effect is formed on the second arm support 300, and the deformation of the second arm support 300 can be effectively controlled. When the second arm support 300 is unfolded relative to the first arm support 200, the pressure disappears, the first limiting part 130 resets and moves in the direction away from the second limiting part 140, the clamping of the second arm support 300 can be released, and the resetting of the first limiting part 130 can be realized through a spring. The second position-limiting part 140 may be formed by bending one end of the supporting plate 120 away from the first position-limiting part 130, and the end of the bent part is bent outward again to form an arc-shaped structure. Specifically, a through hole is formed in one end of the support plate 120, which is far away from the second limiting portion 140, and at least a portion of the first limiting portion 130 is located in the through hole, that is, the upper end of the first limiting portion 130 passes through the through hole and then is located on one side of the second arm support 300, so as to be matched with the second limiting portion 140 through sliding to clamp or loosen the second arm support 300, thereby improving the applicability of limiting the second arm support 300.

Example 2

As shown in fig. 4, the present embodiment provides a supporting device 100. In addition to the technical features of the above embodiment, the present embodiment further includes the following technical features:

the first stopper 130 includes: the sliding groove 132, the sliding block 134 and the thrust structure 136, wherein the sliding groove 132 is arranged on the supporting seat 110; one end of the sliding block 134 is positioned in the sliding groove 132, and the other end thereof penetrates through the supporting plate 120; the pushing structure 136 is disposed on the supporting plate 120 and used for pushing the sliding block 134 to slide toward the second position-limiting portion 140.

In the technical scheme, the sliding groove 132 is formed in the support plate 120, the lower end surface of the sliding block 134 is in contact with the groove bottom of the sliding groove 132, and the thrust structure 136 pushes the sliding block 134 to slide in the sliding groove 132. In addition, a return spring may be provided in the slide groove 132 for returning the slider 134.

Example 3

As shown in fig. 5, the present embodiment provides a supporting device 100. In addition to the technical features of the above embodiment, the present embodiment further includes the following technical features:

the supporting device 100 further includes: a guide post 190, one end of the guide post 190 is connected with the support seat 110, and the other end penetrates through the support plate 120, so that the support plate 120 slides along the axial direction of the guide post 190; wherein, the sliding block 134 is provided with an inclined surface 1342, the inclined surface 1342 inclines to one side of the supporting plate 120 from the first end to the second end of the supporting plate 120, and at least a portion of the thrust structure 136 contacts the inclined surface 1342 to push the sliding block 134 to slide under the pressure of the supporting plate 120.

In this embodiment, the guide post 190 is disposed on the supporting seat 110, the supporting plate 120 is provided with a through hole to allow the guide post 190 to pass through, so that the supporting plate 120 slides up and down relative to the supporting seat 110 through the guide post 190, the thrust structure 136 is disposed on the supporting plate 120, when the second arm support 300 is placed on the supporting plate 120 between the sliding block 134 and the second limiting portion 140, the supporting plate 120 slides down along the guide post 190 to be close to the supporting seat 110 under the gravity of the second arm support 300, at this time, the thrust structure 136 presses the inclined surface 1342, so that the sliding block 134 slides towards the direction close to the second limiting portion 140, and therefore, the sliding block 134 and the second limiting portion 140 jointly act to clamp the second arm support 300. The gravity of the second arm support 300 acts on the sliding block 134 to generate extrusion force on the second arm support 300, and the structure is simple and the operation is convenient.

The first position-limiting portion 130 further includes a reset element 138, the reset element 138 may be a tension spring, the extending and retracting direction of the reset element 138 is the same as the sliding direction, one end of the reset element 138 is connected to the inner side wall of the sliding groove 132 far away from the second position-limiting portion 140, and the other end of the reset element 138 is connected to the sliding block 134. When the supporting plate 120 moves downward under the action of the gravity of the second arm support 300, the pushing structure 136 pushes the sliding block 134 to slide toward the second limiting portion 140, and the restoring element 138 is stretched accordingly. When the second arm support 300 is removed from the support plate 120, the sliding block 134 slides away from the second limiting portion 140 under the action of the reset element 138, and the inclined surface 1342 of the sliding block 134 acts on the thrust structure 136, so that the support plate 120 moves upward.

Example 4

the thrust structure 136 includes: the pressing block is arranged on one surface of the supporting plate 120 facing the supporting seat 110; wherein the pressing block has an arc-shaped surface, which is in contact with the inclined surface 1342.

In this embodiment, the pressing block is fixed on the supporting plate 120 as the thrust structure 136, wherein the pressing block is provided with an arc-shaped surface near the inclined surface 1342, and the arc-shaped surface and the inclined surface 1342 contact with each other, so that the sliding block 134 is more stable in the sliding process.

Example 5

thrust structure 136 further includes: a cam roller or bearing; wherein at least a portion of the rolling surface of the cam roller or the rolling surface of the bearing and the inclined surface 1342 are in contact with each other.

In this embodiment, the cam roller or the bearing contacts the inclined surface 1342 under the gravity of the second arm support 300 to start rotating, and then the sliding block 134 is driven to slide by the rolling of the cam roller or the bearing due to the action of the acting force and the reacting force, so that the movement between the thrust structure 136 and the sliding block 134 is changed from rolling to sliding, and the sliding of the sliding block 134 can be more stable.

Example 6

the supporting device 100 further includes: the first buffer 170, the first buffer 170 is disposed on one side of the sliding block 134 facing the second limiting portion 140; wherein the first buffer member 170 is located above the supporting plate 120.

In this embodiment, one side of the slider 134 close to the second arm support 300 has a planar structure, and the first buffer 170 may be an elastic pad attached to the planar structure, and is used for abutting against at least a part of an outer side surface of the second arm support 300, so as to perform an elastic supporting function on the second arm support 300, absorb a part of deformation, and further perform a deformation prevention function on the second arm support 300.

Example 7

As shown in fig. 6 and 7, the present embodiment provides a supporting device 100. In addition to the technical features of the above embodiment, the present embodiment further includes the following technical features:

the supporting device 100 further includes: and the positioning assembly 160 is arranged between the supporting seat 110 and the supporting plate 120, and is used for limiting the position of the supporting plate 120.

In this embodiment, since the weight of the second arm support 300 continuously applies pressure to the support plate 120, and the second arm support 300 also bounces due to the shaking, the position of the support plate 120 fluctuates up and down, and the second arm support 300 also fluctuates up and down, so that the second arm support 300 is easily deformed. The positioning assembly 160 is disposed between the supporting plate 120 and the supporting base 110, and when the supporting plate 120 falls to a certain extent, the supporting plate is fixed at this position, so that the second arm support 300 also keeps a relatively fixed position, and therefore, the positioning assembly 160 is used to limit the position where the supporting plate 120 moves up and down, and the degree of relative deformation of the second arm support 300 can be further reduced.

Example 8

the positioning assembly 160 includes: the proximity switch 162 is arranged between the support base 110 and the support plate 120 and used for sensing the support plate 120, the electromagnet 164 is arranged on one surface, facing the support plate 120, of the support base 110, and a detection signal of the proximity switch 162 is used for controlling the electrification or the outage of the electromagnet 164.

In this embodiment, the supporting plate 120 is a steel plate, the proximity switch 162 may be disposed on the guide post 190, the supporting plate 120 slides along the guide post 190 from top to bottom under the action of the gravity of the second arm support 300, and when the supporting plate 120 is close to the proximity switch 162, the controller may control the electromagnet 164 to generate a current according to a signal of the proximity switch 162, so as to generate a magnetic field, so that the electromagnet 164 adsorbs the supporting plate 120, thereby limiting the position of the supporting plate 120, and preventing the second arm support 300 from shaking up and down. When the second arm support 300 on the support plate 120 is moved away to move the support plate 120 upward along the guide post 190 and away from the proximity switch 162, the controller can control the electromagnet 164 to be powered off according to a signal of the proximity switch 162, so that the magnetic field disappears, and the control is convenient and reliable.

Example 9

the supporting device 100 further includes: the second cushion member 180, the second cushion member 180 is disposed on the supporting plate 120 between the first position-limiting portion 130 and the second position-limiting portion 140, and the supporting plate 120 is located between the second cushion member 180 and the supporting base 110.

In this embodiment, the second buffer 180 includes a buffer pad and a fastener, the fastener fixes the buffer pad on a surface of the support plate 120 facing the second arm 300, and the buffer pad plays a role of buffering the second arm 300 and can absorb part of deformation, so that the second arm 300 can be deformed in the up-down direction.

Example 10

As shown in fig. 3 and 5, the present embodiment provides a working machine, which may be a pump truck, a fire truck, a crane, or the like, including: the first arm support 200 is arranged on the chassis; the supporting device 100 is disposed between the first arm support 200 and the second arm support 300, and the supporting device 100 is used for supporting the second arm support 300.

In this technical solution, the utility model provides a working machine in the embodiment includes strutting arrangement 100 in any embodiment, therefore, the working machine in this embodiment possesses the whole beneficial effect of strutting arrangement 100 in any embodiment.

To sum up, the utility model discloses beneficial effect does:

1. the first limiting part 130 and the second limiting part 140 are respectively arranged at two opposite ends of the supporting plate 120 to clamp the second arm support 300, and under the pressure action of the second arm support 300, the left and right limiting functions of the second arm support 300 are realized, and the deformation of the second arm support 300 is reduced.

2. The first limiting part 130 adopts a sliding pair structure in which the sliding block 134 and the thrust structure 136 are matched with each other, so that the first limiting part 130 is more stable in the process of clamping the second arm support 300.

3. The elastic element is adopted, and the second arm support 300 has a buffering function when being placed.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A supporting device is arranged between a first arm support and a second arm support and used for supporting the second arm support, and is characterized by comprising:

the supporting seat is arranged on the first arm support;

one end of the elastic piece is connected with the supporting seat;

the supporting plate is connected with the other end of the elastic part and is used for supporting the second arm support;

the first limiting part is connected to the first end of the supporting seat in a sliding mode, and at least one part of the first limiting part extends out of the supporting plate;

the second limiting part is arranged at the second end of the supporting plate, and the second end is the end of the supporting plate far away from the first limiting part;

the supporting plate is used for driving the first limiting portion to slide towards the second limiting portion under the action of pressure.

2. The support device of claim 1, wherein the first stop portion comprises:

the sliding chute is arranged on the supporting seat;

one end of the sliding block is positioned in the sliding groove, and the other end of the sliding block penetrates through the supporting plate;

and the thrust structure is arranged on the supporting plate and used for pushing the sliding block to slide towards the direction close to the second limiting part.

3. The support device of claim 2, further comprising:

one end of the guide post is connected with the supporting seat, and the other end of the guide post penetrates through the supporting plate, so that the supporting plate can slide along the axial direction of the guide post;

wherein the sliding block is provided with an inclined surface which inclines towards one side of the supporting plate from the first end to the second end of the supporting plate, and at least one part of the thrust structure is in contact with the inclined surface so as to push the sliding block to slide under the pressure action of the supporting plate.

4. The support device of claim 3, wherein the thrust structure comprises:

the pressing block is arranged on one surface, facing the supporting seat, of the supporting plate;

wherein, the briquetting has the arcwall face, is used for contacting each other with the inclined plane.

5. The support device of claim 3, wherein the thrust structure further comprises:

a cam roller or bearing;

wherein at least a part of the rolling surface of the cam roller or the rolling surface of the bearing and the inclined surface are in contact with each other.

6. The support device of any one of claims 3 to 5, further comprising:

the first buffer piece is arranged on one side of the sliding block, which faces the second limiting part;

wherein the first buffer member is located above the support plate.

7. The support device of claim 6, further comprising:

and the positioning assembly is arranged between the supporting seat and the supporting plate and used for limiting the position of the supporting plate.

8. The support device of claim 7, wherein the positioning assembly comprises:

the proximity switch is arranged between the supporting seat and the supporting plate and used for sensing the position of the supporting plate;

the electromagnet is arranged on one surface, facing the supporting plate, of the supporting seat, and a detection signal of the proximity switch is used for controlling the electrification or the outage of the electromagnet.

9. The support device of claim 8, further comprising:

the second bolster is located first spacing portion with between the spacing portion of second in the backup pad, just the backup pad is located the second bolster with between the supporting seat.

10. A work machine, comprising:

a chassis;

the first arm support is arranged on the chassis;

a second arm support;

the support device of any one of claims 1 to 9, being arranged between the first arm and the second arm, the support device being configured to support the second arm.