Support equipment and working machinery

Abstract

The present invention provides a support device and an operating machine, wherein the support device is arranged between a first boom and a second boom, and is used to support the second boom. The support device comprises: a support seat, arranged on the first boom; an elastic member, one end of which is connected to the support seat; a support plate, which is connected to the other end of the elastic member, and the support plate is used to support the second boom; a first limiting portion, which is slidably connected to the first end of the support seat, and at least a part of the first limiting portion extends out of the support plate; a second limiting portion, which is arranged at the second end of the support plate, and the second end is an end of the support plate away from the first limiting portion; wherein the support plate is used to drive the first limiting portion to slide toward the second limiting portion under pressure. The present invention realizes the limiting function of the second boom by respectively arranging the first limiting portion and the second limiting portion at the opposite ends of the support plate to clamp the second boom, thereby reducing the deformation of the second boom.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, and in particular to a supporting device and an operating machine. Background Art

[0002] In the related art, the boom support is arranged between two adjacent booms of the supporting pump trucks, and is used to support the boom located above, so as to ensure that after each boom is folded, there will be no rigid collision between each other, and at the same time, the adjacent booms can be completely fitted. The existing boom support does not have a limiting function on both sides, which is easy to cause the boom to deform. Summary of the invention

[0003] The present invention aims to solve at least one of the above technical problems.

[0004] One of the objects of the present invention is to provide a supporting device.

[0005] A second object of the present invention is to provide a working machine.

[0006] To achieve the first purpose of the present invention, an embodiment of the present invention provides a supporting device, which is arranged between the first arm and the second arm, and is used to support the second arm, and the supporting device includes: a supporting seat, which is arranged on the first arm; an elastic member, one end of which is connected to the supporting seat; a supporting plate, which is connected to the other end of the elastic member, and the supporting plate is used to support the second arm; a first limiting portion, which is slidably connected to the first end of the supporting seat, and at least a part of the first limiting portion extends out of the supporting plate; a second limiting portion, which is arranged at the second end of the supporting plate, and the second end is an end of the supporting plate away from the first limiting portion; wherein the support plate is used to drive the first limiting portion to slide toward the second limiting portion under pressure.

[0007] In this technical solution, the support seat can be set to a structure including a bottom plate and two side plates, the two side plates are arranged on a plate 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 side of the first arm frame facing the second arm frame is inserted into the slot structure, the plate surface of one side of the bottom plate faces the second arm frame, and the part of the other side plate surface of the bottom plate located in the slot structure abuts against the end of the first arm frame facing the second arm frame, and the two side plates are respectively engaged with the opposite sides of the first arm frame, so that the support seat can be more firmly arranged on the first arm frame and easy to disassemble. Among them, the bottom plate can be bent to form a bent portion to serve as a side plate located at the edge, simplifying the structure of the support seat. The first limiting part and the second limiting part are respectively arranged on opposite sides of the support plate, so that a groove structure is formed between the first limiting part, the second limiting part and the support plate, which can be used to accommodate at least a part of the second arm toward the first arm, and the side surface of the second arm toward the first arm abuts against the support plate, so that the support plate forms a supporting effect on the second arm, and the elastic member is arranged between the support seat and the support plate. The elastic member can be a spring, and a plurality of limiting grooves are evenly distributed on one side of the support seat toward the support plate, one end of the spring is fixed in the limiting groove, and the other end of the spring is connected to the support plate, and the spring can support the support plate, and can further play a buffering role, further preventing the second arm from deforming.

[0008] When the support plate receives the pressure from the second arm, it can drive the first limiting part to slide toward the second limiting part, so that the first limiting part is close to the second limiting part, thereby cooperating with the second limiting part to clamp the second arm, forming a limiting effect on the second arm, and effectively controlling the deformation of the second arm. When the pressure from the second arm disappears, the first limiting part moves away from the second limiting part, and the clamping of the second arm can be released. The second limiting part is formed by bending one end of the support plate away from the first limiting part, and the end of the bent part is bent outward again to form an arc structure.

[0009] In addition, the technical solution provided by the present invention may also have the following additional technical features:

[0010] In the above technical solution, the first limiting part includes: a slide groove, which is arranged on the support seat; a slider, one end of which is located in the slide groove and the other end passes through the support plate; a thrust structure, which is arranged on the support plate and is used to push the slider to slide in the direction close to the second limiting part.

[0011] In this technical solution, a slide groove is arranged on the bottom plate, the lower end surface of the slider contacts the bottom of the slide groove, and the thrust structure pushes the slider to slide in the slide groove. The structure is simple and reliable, and the operation is convenient.

[0012] Any of the above technical solutions also includes: a guide column, one end of which is connected to the support seat, and the other end passes through the support plate, so that the support plate slides along the axial direction of the guide column; wherein the slider is provided with an inclined surface, from the first end to the second end of the support plate, the inclined surface is inclined toward one side of the support plate, and at least a part of the thrust structure is in contact with the inclined surface to push the slider to slide under the pressure of the support plate.

[0013] In this technical solution, the guide column is arranged on the support seat, and a through hole is arranged on the support plate so that the guide column passes through, so that the support plate slides up and down relative to the support seat through the guide column, and the thrust structure is arranged on the support plate. When the second arm is placed on the bottom plate between the slider and the second limiting part, the bottom plate, under the gravity of the second arm, makes the support plate slide down along the guide column to approach the support seat. At this time, the thrust structure squeezes the inclined surface, so that the slider slides in the direction close to the second limiting part. Therefore, the slider and the second limiting part work together to clamp the second arm. The slider generates a squeezing force on the second arm through the gravity of the second arm, and the structure is simple and easy to operate.

[0014] In any of the above technical solutions, the thrust structure includes: a pressure block, which is arranged on a side of the support plate facing the support seat; wherein the pressure block has an arc-shaped surface for contacting the inclined surface.

[0015] In this technical solution, the pressure block is fixed on the support plate as a thrust structure, wherein the pressure block is provided with an arc surface near the inclined surface, and the arc surface and the inclined surface are in contact with each other, which can make the slider more stable during sliding.

[0016] In any of the above technical solutions, the thrust structure further includes: a cam roller or a bearing; wherein at least a portion of the rolling surface of the cam roller or the rolling surface of the bearing is in contact with the inclined surface.

[0017] In this technical solution, the cam roller or bearing contacts the inclined surface under the action of the gravity of the second arm, and starts to rotate. Then, due to the action of the action force and the reaction force, the rolling of the cam roller or the bearing drives the slider to slide, so that the movement between the thrust structure and the slider is transformed from rolling to sliding, which can achieve smoother sliding of the slider.

[0018] In any of the above technical solutions, the supporting device further includes: a first buffer member, which is arranged on the side of the sliding block facing the second limiting portion; wherein the first buffer member is located above the supporting plate.

[0019] In this technical solution, the side of the slider close to the second arm bracket has a planar structure, and the first buffer member can be an elastic pad, which is attached to the planar structure and is used to abut against at least a portion of the outer surface of the second arm bracket to elastically support the second arm bracket, absorb part of the deformation, and further prevent the second arm bracket from deformation.

[0020] In any of the above technical solutions, the support device also includes: a positioning component, which is arranged between the support seat and the support plate and is used to limit the position of the support plate.

[0021] In this technical solution, the weight of the second arm will continuously exert pressure on the support plate. In addition, due to the shaking, the second arm will also bounce up, so the position of the support plate will fluctuate up and down, and the second arm will also fluctuate up and down accordingly, making the second arm easily deformed. The positioning component is arranged between the support plate and the support seat. When the support plate falls to a certain extent, it will be fixed in this position, so that the second arm will also maintain a relatively fixed position. Therefore, the positioning component is used to limit the position of the support plate moving up and down, which can further reduce the relative deformation of the second arm.

[0022] In any of the above technical solutions, the positioning component includes: a proximity switch, arranged between the support base and the support plate, for sensing the position of the support plate; an electromagnet, arranged on the side of the support base facing the support plate, and the detection signal of the proximity switch is used to control the power on or off of the electromagnet.

[0023] In this technical solution, the support plate is preferably a steel plate, and the proximity switch is arranged on the guide column. Under the gravity of the second arm, the support plate slides from top to bottom along the guide column. When the support plate approaches the proximity switch, the controller can control the electromagnet to generate current according to the signal of the proximity switch, thereby generating a magnetic field, so that the electromagnet adsorbs the support plate, thereby limiting the position of the support plate and preventing the second arm from shaking up and down. When the second arm on the support plate is moved away, so that the support plate moves upward along the guide column and leaves the proximity switch, the controller can control the electromagnet to cut off the power according to the signal of the proximity switch, and the magnetic field disappears, and the control is convenient and reliable.

[0024] In any of the above technical solutions, the support device further includes: a second buffer member, which is arranged on the support plate between the first limiting portion and the second limiting portion, and the support plate is located between the second buffer member and the support seat.

[0025] In this technical solution, the second buffer member includes a buffer pad and a fastener. The fastener fixes the buffer pad to the side of the support plate facing the second arm bracket. The buffer pad has a buffering effect on the second arm bracket and can absorb partial deformation, thereby causing the second arm bracket to deform in the up and down directions.

[0026] To achieve the second purpose of the present invention, an embodiment of the present invention provides a working machine, including: a chassis; a first arm, arranged on the chassis; a second arm; a supporting device in any embodiment, arranged between the first arm and the second arm, and the supporting device is used to support the second arm.

[0027] In this technical solution, the working machine in the embodiment provided by the present invention includes the supporting device in any embodiment. Therefore, the working machine in this embodiment has all the beneficial effects of the supporting device in any embodiment.

[0028] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an adjustable arm support device in the related technology of the present invention;

[0030] Figure 2 It is a structural schematic diagram of a concrete pump truck and a boom buffer support device in the related technology of the present invention;

[0031] Figure 3 A schematic diagram of the three-dimensional structure of a supporting device according to an embodiment of the present invention;

[0032] Figure 4 A schematic diagram of the three-dimensional structure of a support device in use according to an embodiment of the present invention;

[0033] Figure 5 A partial cross-sectional structural schematic diagram of a support device in a use state according to an embodiment of the present invention;

[0034] Figure 6 A schematic diagram of the three-dimensional structure of a support base of a support device according to an embodiment of the present invention;

[0035] Figure 7 It is a schematic diagram of the composition of the positioning assembly of the supporting device according to one embodiment of the present invention.

[0036] in, Figure 1 and Figure 2 The corresponding relationship between the reference numerals and component names in the figure is:

[0037] 100': adjustable boom support device, 100": condensate pump truck and boom buffer support device.

[0038] in, Figures 3 to 7 The corresponding relationship between the reference numerals and component names in the figure is:

[0039] 100: supporting device, 110: supporting seat, 112: limiting groove, 120: supporting plate, 130: first limiting part, 132: sliding groove, 134: sliding block, 1342: inclined surface, 136: thrust structure, 138: reset element, 190: guide column, 140: second limiting part, 150: elastic member, 160: positioning assembly, 162: proximity switch, 164: electromagnet, 170: first buffer member, 180: second buffer member, 200: first arm support, 300: second arm support. DETAILED DESCRIPTION

[0040] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0042] In the related prior art, such as Figure 1 As shown, an adjustable boom support device 100' is disclosed, comprising: a fixed support plate: used to connect to the support boom and support the supported boom; an adjustment component: which is arranged between the fixed support plate and the support boom to adjust the installation width of the fixed support plate and / or the gap between the supported boom and the support boom according to the width of the support boom and the height gap between the supported boom and the support boom. The adjustable boom support device 100' has no upper and lower limits, which may cause the vehicle boom to bounce up under bumpy conditions, which may easily cause the vehicle boom to twist.

[0043] like Figure 2 As shown, a concrete pump truck and boom buffer support device 100" is also disclosed, which can provide a certain buffering effect on the vehicle boom. However, when the vehicle boom vibrates during the driving of the pump truck, the reliability is low due to too many hinge points.

[0044] Therefore, the present invention proposes a supporting device 100 according to the current prior art.

[0045] Refer to the following Figures 3 to 7 The technical solutions of some embodiments of the present invention are described.

[0046] Example 1

[0047] like Figure 3 and Figure 4As shown, the present embodiment provides a support device 100, which is arranged between the first arm 200 and the second arm 300 and is used to support the second arm 300. The support device 100 includes: a support seat 110, a support plate 120, an elastic member 150, a first limiting portion 130 and a second limiting portion 140. The support seat 110 is arranged on the first arm 200; one end of the elastic member 150 is connected to the support seat 110; the support plate 120 is connected to the other end of the elastic member 150, and the support plate 120 is used to support the second arm 300; the first limiting portion 130 is slidably connected to the first end of the support seat 110, and at least a part of the first limiting portion 130 extends out of the support plate 120; the second limiting portion 140 is arranged at the second end of the support plate 120, and the second end is an end of the support plate 120 away from the first limiting portion 130; wherein the support plate 120 is used to drive the first limiting portion 130 to slide toward the second limiting portion 140 under pressure.

[0048] In this embodiment, the support seat 110 can be configured to include a structure including a bottom plate and two side plates, the two side plates are arranged on a plate 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 side of the first arm 200 facing the second arm 300 is inserted into the slot structure, one side of the bottom plate faces the second arm 300, and the other side of the bottom plate is located in the slot structure. The part of the first arm 200 facing the second arm 300 is abutted, and the two side plates are respectively engaged with the opposite sides of the first arm 200, so that the support seat 110 can be more firmly arranged on the first arm 200 and is easy to disassemble. Among them, the bottom plate can be bent to form a bent portion to serve as a side plate located at the edge, simplifying the structure of the support seat 110. The first limiting part 130 and the second limiting part 140 are respectively arranged on opposite sides of the support plate 120, so that a groove structure is formed between the first limiting part 130, the second limiting part 140 and the support plate 120, which can be used to accommodate at least a portion of the second arm 300 facing the first arm 200, so that the first limiting part 130 and the second limiting part 140 cooperate with each other to clamp the second arm 300 and form a limit for the second arm 300. The side surface of the second arm 300 facing the first arm 200 abuts against the support plate 120, so that the support plate 120 forms a supporting effect on the second arm 300, and the elastic member 150 is arranged between the support seat 110 and the support plate 120; wherein one end of the second buffer member 180 is connected to the support seat 110, and the other end is connected to the support plate 120. The second buffer member 180 is a spring, and a plurality of limit grooves 112 are evenly distributed on one side of the support seat 110 facing the support plate 120. One end of the spring is fixed in the limit groove 112, and the other end of the spring is connected to the support plate 120. The spring can support the support plate 120 and further play a buffering role, thereby further preventing the second arm 300 from deforming.

[0049] When the support plate 120 is subjected to the pressure of the second arm 300, the first limiting part 130 is driven to slide toward the second limiting part 140, so that the first limiting part 130 is close to the second limiting part 140, thereby cooperating with the second limiting part 140 to clamp the second arm 300, forming a limiting effect on the second arm 300, and effectively controlling the deformation of the second arm 300. After the second arm 300 is unfolded relative to the first arm 200, the pressure disappears, the first limiting part 130 is reset, and moves away from the second limiting part 140, so as to release the clamping of the second arm 300. The reset of the first limiting part 130 can be achieved by a spring. Among them, the second limiting part 140 can be formed by bending one end of the support plate 120 away from the first limiting part 130, and the end of the bent part is bent outward again to form an arc structure. Specifically, a through hole is provided at one end of the support plate 120 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 to say, the upper end of the first limiting portion 130 is located on one side of the second arm 300 after passing through the through hole, so as to cooperate with the second limiting portion 140 to clamp or release the second arm 300 by sliding, thereby improving the applicability of limiting the second arm 300.

[0050] Example 2

[0051] like Figure 4 As shown, this embodiment provides a supporting device 100. In addition to the technical features of the above embodiment, this embodiment also includes the following technical features:

[0052] The first limiting portion 130 includes: a slide groove 132, a slider 134 and a thrust structure 136, the slide groove 132 is arranged on the support seat 110; one end of the slider 134 is located in the slide groove 132, and the other end passes through the support plate 120; the thrust structure 136 is arranged on the support plate 120, and is used to push the slider 134 to slide in a direction close to the second limiting portion 140.

[0053] In this technical solution, a slide groove 132 is provided on the support plate 120, the lower end surface of the slider 134 contacts the bottom of the slide groove 132, and the thrust structure 136 pushes the slider 134 to slide in the slide groove 132. The structure is simple and reliable, and the operation is convenient. In addition, a return spring can be provided in the slide groove 132 to return the slider 134.

[0054] Example 3

[0055] like Figure 5 As shown, this embodiment provides a supporting device 100. In addition to the technical features of the above embodiment, this embodiment also includes the following technical features:

[0056] The support device 100 also includes: a guide column 190, one end of which is connected to the support seat 110, and the other end passes through the support plate 120, so that the support plate 120 slides axially along the guide column 190; wherein the slider 134 is provided with an inclined surface 1342, from the first end to the second end of the support plate 120, the inclined surface 1342 is inclined toward one side of the support plate 120, and at least a portion of the thrust structure 136 is in contact with the inclined surface 1342 to push the slider 134 to slide under the pressure of the support plate 120.

[0057] In this embodiment, the guide post 190 is arranged on the support seat 110, and a through hole is arranged on the support plate 120 so that the guide post 190 passes through, so that the support plate 120 slides up and down relative to the support seat 110 through the guide post 190, and the thrust structure 136 is arranged on the support plate 120. When the second arm 300 is placed on the support plate 120 between the slider 134 and the second limit portion 140, the support plate 120 slides downward along the guide post 190 to approach the support seat 110 under the gravity of the second arm 300. At this time, the thrust structure 136 presses the inclined surface 1342, so that the slider 134 slides in the direction close to the second limit portion 140. Therefore, the slider 134 and the second limit portion 140 work together to clamp the second arm 300. The slider 134 generates a pressing force on the second arm 300 through the gravity of the second arm 300, and the structure is simple and easy to operate.

[0058] The first position-limiting portion 130 further includes a reset element 138, which may be a tension spring. The direction of expansion and contraction of the reset element 138 is consistent with the direction of sliding. One end of the reset element 138 is connected to the inner wall of the slide slot 132 away from the second position-limiting portion 140, and the other end of the reset element 138 is connected to the slider 134. When the support plate 120 moves downward under the gravity of the second arm 300, the thrust structure 136 pushes the slider 134 to slide in the direction close to the second position-limiting portion 140, and the reset element 138 is stretched accordingly. When the second arm 300 is removed from the support plate 120, the slider 134 slides in the direction away from the second position-limiting portion 140 under the action of the reset element 138, and the inclined surface 1342 of the slider 134 acts on the thrust structure 136, so that the support plate 120 moves upward.

[0059] Example 4

[0060] like Figure 5 As shown, this embodiment provides a supporting device 100. In addition to the technical features of the above embodiment, this embodiment also includes the following technical features:

[0061] The thrust structure 136 includes a pressing block disposed on a surface of the support plate 120 facing the support seat 110 ; wherein the pressing block has an arc-shaped surface that contacts the inclined surface 1342 .

[0062] In this embodiment, the pressure block is fixed on the support plate 120 as a thrust structure 136, wherein the pressure block is provided with an arc surface near the inclined surface 1342, and the arc surface and the inclined surface 1342 are in contact with each other, which can make the slider 134 more stable during the sliding process.

[0063] Example 5

[0064] like Figure 5 As shown, this embodiment provides a supporting device 100. In addition to the technical features of the above embodiment, this embodiment also includes the following technical features:

[0065] The thrust structure 136 further includes: a cam roller or a bearing; wherein at least a portion of the rolling surface of the cam roller or the rolling surface of the bearing contacts the inclined surface 1342 .

[0066] In this embodiment, the cam roller or bearing contacts the inclined surface 1342 under the action of gravity of the second arm 300, and starts to rotate. Then, due to the action of the action force and the reaction force, the rolling of the cam roller or the bearing drives the slider 134 to slide, so that the movement between the thrust structure 136 and the slider 134 is transformed from rolling to sliding, so that the sliding of the slider 134 can be smoother.

[0067] Example 6

[0068] like Figure 5 As shown, this embodiment provides a supporting device 100. In addition to the technical features of the above embodiment, this embodiment also includes the following technical features:

[0069] The supporting device 100 further includes a first buffer member 170 , which is disposed on a 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 .

[0070] In this embodiment, the slider 134 has a planar structure on one side close to the second arm 300, and the first buffer member 170 can be an elastic pad, which is attached to the planar structure and is used to abut against at least a portion of the outer side surface of the second arm 300 to elastically support the second arm 300, absorb part of the deformation, and further prevent the second arm 300 from deformation.

[0071] Example 7

[0072] like Figure 6 and Figure 7As shown, this embodiment provides a supporting device 100. In addition to the technical features of the above embodiment, this embodiment also includes the following technical features:

[0073] The supporting device 100 further includes a positioning assembly 160 , which is disposed between the supporting seat 110 and the supporting plate 120 and is used to define the position of the supporting plate 120 .

[0074] In this embodiment, due to the weight of the second arm 300 itself, pressure will be continuously applied to the support plate 120. In addition, due to shaking, the second arm 300 will also bounce up, so the position of the support plate 120 will fluctuate up and down, and the second arm 300 will also fluctuate up and down accordingly, making the second arm 300 easily deformed. The positioning assembly 160 is arranged between the support plate 120 and the support seat 110. When the support plate 120 falls to a certain extent, it will be fixed in this position, so that the second arm 300 will also remain in a relatively fixed position. Therefore, the positioning assembly 160 is used to limit the position of the support plate 120 moving up and down, which can further reduce the relative deformation of the second arm 300.

[0075] Example 8

[0076] like Figure 6 and Figure 7 As shown, this embodiment provides a supporting device 100. In addition to the technical features of the above embodiment, this embodiment also includes the following technical features:

[0077] The positioning assembly 160 includes: a proximity switch 162 and an electromagnet 164. The proximity switch 162 is arranged between the support base 110 and the support plate 120, and is used to sense the support plate 120. The electromagnet 164 is arranged on the side of the support base 110 facing the support plate 120. The detection signal of the proximity switch 162 is used to control the power on or off of the electromagnet 164.

[0078] In this embodiment, the support plate 120 is a steel plate, and the proximity switch 162 can be arranged on the guide column 190. Under the gravity of the second arm 300, the support plate 120 slides from top to bottom along the guide column 190. When the support plate 120 approaches the proximity switch 162, the controller can control the electromagnet 164 to generate current according to the signal of the proximity switch 162, thereby generating a magnetic field, so that the electromagnet 164 adsorbs the support plate 120, thereby limiting the position of the support plate 120 and preventing the second arm 300 from shaking up and down. When the second arm 300 on the support plate 120 is removed, so that the support plate 120 moves upward along the guide column 190 and leaves the proximity switch 162, the controller can control the electromagnet 164 to cut off the power according to the signal of the proximity switch 162, and the magnetic field disappears. The control is convenient and reliable. It can be understood that the controller can be connected to the proximity switch and the electromagnet, and the controller can be set independently or integrated on the device.

[0079] Example 9

[0080] like Figure 5 As shown, this embodiment provides a supporting device 100. In addition to the technical features of the above embodiment, this embodiment also includes the following technical features:

[0081] The supporting device 100 further includes a second buffer 180 , which is disposed on the supporting plate 120 between the first limiting portion 130 and the second limiting portion 140 , and the supporting plate 120 is located between the second buffer 180 and the supporting seat 110 .

[0082] In this embodiment, the second buffer member 180 includes a buffer pad and a fastener. The fastener fixes the buffer pad to the side of the support plate 120 facing the second arm 300. The buffer pad has a buffering effect on the second arm 300 and can absorb part of the deformation. Therefore, the second arm 300 can be deformed in the up and down directions.

[0083] Example 10

[0084] like Figure 3 and Figure 5 As shown, this embodiment provides an operating machinery, which may be a pump truck, a fire truck, a crane, etc., including: a chassis, a first boom 200 and a second boom 300, the first boom 200 is arranged on the chassis; a supporting device 100 is arranged between the first boom 200 and the second boom 300, and the supporting device 100 is used to support the second boom 300.

[0085] In this technical solution, the working machine in the embodiment provided by the present invention includes the supporting device 100 in any embodiment. Therefore, the working machine in this embodiment has all the beneficial effects of the supporting device 100 in any embodiment.

[0086] In summary, the beneficial effects of the embodiments of the present invention are:

[0087] 1. The first limiting part 130 and the second limiting part 140 are respectively provided at the opposite ends of the support plate 120 to clamp the second arm frame 300, and under the pressure of the second arm frame 300, the left and right limiting function of the second arm frame 300 is realized, thereby reducing the deformation of the second arm frame 300.

[0088] 2. The first limiting portion 130 adopts a movable substructure in which a slider 134 and a thrust structure 136 cooperate with each other, so that the first limiting portion 130 is more stable during the process of clamping the second arm support 300 .

[0089] 3. The elastic element is used to provide a buffering function when the second arm support 300 is placed.

[0090] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0091] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0092] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0093] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A supporting device, arranged between a first arm and a second arm, for supporting the second arm, characterized in that: The supporting device comprises: A support seat, arranged on the first arm support; An elastic member, one end of which is connected to the support seat; A support plate connected to the other end of the elastic member, the support plate being used to support the second arm support; A first limiting portion, slidably connected to the first end of the support seat, and at least a portion of the first limiting portion extends out of the support plate; A second limiting portion, provided at a second end of the support plate, wherein the second end is an end of the support plate away from the first limiting portion; Wherein, the support plate is used to drive the first limiting portion to slide toward the second limiting portion under pressure; The first limiting portion comprises: A slide groove is provided on the support seat; A slider, one end of which is located in the slide groove and the other end of which passes through the support plate; The thrust structure is arranged on the support plate and is used to push the sliding block to slide in a direction close to the second limiting portion.

2. The support device according to claim 1, characterized in that: Also includes: A guide column, one end of which is connected to the support seat, and the other end of which passes through the support plate, so that the support plate slides along the axial direction of the guide column; The slider is provided with an inclined surface, which is inclined toward one side of the support plate from the first end to the second end of the support plate, and at least a portion of the thrust structure is in contact with the inclined surface to push the slider to slide under the pressure of the support plate.

3. The supporting device according to claim 2, characterized in that: The thrust structure comprises: A pressing block, arranged on a side of the support plate facing the support seat; Wherein, the pressing block has an arc-shaped surface for contacting with the inclined surface.

4. The supporting device according to claim 2, characterized in that: The thrust structure further comprises: Cam rollers or bearings; Wherein, at least a portion of the rolling surface of the cam roller or the rolling surface of the bearing is in contact with the inclined surface.

5. The supporting device according to any one of claims 2 to 4, characterized in that: Also includes: A first buffer member, disposed on a side of the slider facing the second limiting portion; Wherein, the first buffer component is located above the supporting plate.

6. The supporting device according to claim 5, characterized in that: Also includes: A positioning assembly is disposed between the support seat and the support plate and is used to limit the position of the support plate.

7. The supporting device according to claim 6, characterized in that: The positioning component comprises: A proximity switch, disposed between the support base and the support plate, for sensing the position of the support plate; The electromagnet is arranged on a side of the support seat facing the support plate, and the detection signal of the proximity switch is used to control the power on or off of the electromagnet.

8. The supporting device according to claim 7, characterized in that: Also includes: The second buffer is arranged on the support plate between the first limiting portion and the second limiting portion, and the support plate is located between the second buffer and the support seat.

9. A working machine, characterized in that: include: Chassis; A first arm support, disposed on the chassis; Second boom; The support device according to any one of claims 1 to 8 is arranged between the first arm and the second arm, and the support device is used to support the second arm.

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