CN212715963U

CN212715963U - Cantilever crane strutting arrangement and working vehicle

Info

Publication number: CN212715963U
Application number: CN202020952634.8U
Authority: CN
Inventors: 刘小顺; 欧阳春平; 毛成
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: 2021-03-16
Anticipated expiration: 2030-05-29

Abstract

The utility model provides a cantilever crane strutting arrangement and working vehicle. Wherein, cantilever crane strutting arrangement includes: the support frame assembly is used for supporting the arm support device, the support frame assembly is arranged along the width direction of the arm support device, and the bottom of the support frame assembly is used for being connected with the mounting surface; the limiting assembly is arranged at the top of the support frame assembly, a supporting position is formed by the limiting assembly and the top of the support frame assembly and used for limiting the arm support device arranged at the supporting position in the width direction, the limiting assembly comprises a sliding part and an elastic resetting part, the sliding part is connected with the support frame assembly in a sliding mode, and the elastic resetting part is connected with the sliding part so that the sliding part resets. Through the technical scheme of the utility model, the size of spacing subassembly can be according to the position of cantilever crane device on the width direction and width size self-adaptation adjustment, need not manual adjustment operation, and convenient and fast has just reduced cantilever crane strutting arrangement's installation accuracy requirement, the installation of being convenient for.

Description

Cantilever crane strutting arrangement and working vehicle

Technical Field

The utility model relates to an cantilever crane supports technical field, particularly, relates to a cantilever crane strutting arrangement and an operation vehicle.

Background

At present, the boom device is a common device in operation vehicles such as a concrete pump truck, a fire truck and the like, and generally comprises a plurality of sections of arms, wherein each section of arm is rotatably connected and can rotate for a certain angle, and the boom device is unfolded or folded and retracted through the rotation of the section arms. The cantilever crane device is large in size and weight, a supporting structure is required to be used for supporting in a folding and withdrawing state, the supporting structure is required to be designed independently according to different sizes of the cantilever crane device, and the requirement on the manufacturing precision of the supporting structure is high for the cantilever crane device to be in full contact with the supporting structure. The prior art provides an arm support supporting structure, through set up a plurality of pinholes on the direction of height and the top connecting plate of support body to realize arm support supporting structure's altitude mixture control and the interval between two locating parts and adjust, but the interval of locating part in this scheme is restricted by the position of pinhole, only is applicable to the arm support device of a few kinds of width sizes, and application scope is little, and simultaneously, the position of locating part need be adjusted through manual operation, and is consuming time hard.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to at least one of the problems of the prior art or the related art.

Therefore, an object of the present invention is to provide an arm support supporting device.

Another object of the present invention is to provide a work vehicle.

In order to achieve the above object, a first aspect of the present invention provides an arm support supporting device, including: the support frame assembly is used for supporting the arm support device, the support frame assembly is arranged along the width direction of the arm support device, and the bottom of the support frame assembly is used for being connected with the mounting surface; the limiting assembly is arranged at the top of the support frame assembly, a supporting position is formed by the limiting assembly and the top of the support frame assembly and used for limiting the arm support device arranged at the supporting position in the width direction, the limiting assembly comprises a sliding part and an elastic resetting part, the sliding part is connected with the support frame assembly in a sliding mode, and the elastic resetting part is connected with the sliding part so that the sliding part resets.

According to the utility model discloses first aspect technical scheme, cantilever crane strutting arrangement is used for supporting the cantilever crane device. The arm support supporting device comprises a supporting frame component and a limiting component. The support frame assembly is used as a main body structure of the arm support device and is arranged along the width direction of the arm support device, so that when the arm support device is in a withdrawing state, the top of the support frame assembly supports the arm support device; the bottom of the support bracket assembly is adapted to be connected to a mounting surface to stabilize the support bracket assembly. The limiting assembly is arranged at the top of the support frame assembly, and a supporting position is formed by the limiting assembly and the top of the support frame assembly, so that when the arm support device is in contact with the support frame assembly, the limiting assembly is positioned on the supporting position, and meanwhile, the arm support device is limited in the width direction through the limiting assembly, the arm support device is prevented from shaking, the stability of the arm support device is improved, and the reduction of the abrasion of the connecting part of the arm support device is facilitated. The limiting assembly comprises a sliding part and an elastic resetting part, the sliding part is connected with the supporting frame assembly in a sliding mode, the size of the supporting position in the width direction is adjusted through the sliding of the sliding part, the requirement for assembling accuracy between the arm support device and the arm support supporting device can be lowered, even if the arm support device deviates in the width direction to a certain degree or the width size of the arm support device changes to a certain degree, the arm support device can still be matched with the arm support supporting device, the adaptability of the arm support device is strong, and the application range is wide. The elastic reset piece is connected with the sliding piece to drive the sliding piece to recover to the original position. According to the arm support supporting device in the scheme, when the width size or the position in the width direction of the arm support device is changed, the limiting assembly can be adjusted in a self-adaptive mode aiming at the arm support device, manual adjustment operation on the position of the limiting assembly is not needed, time and labor are saved, and the arm support supporting device is convenient to use.

It can be understood that, because the boom device has a large volume, the existing boom support device has a high requirement on the mounting accuracy of the boom support device in order to limit the boom device in the width direction, and the matching between the boom support device and the existing boom support device is affected if the mounting position is deviated. In the winch support device in the scheme, the position of the limiting assembly can be adjusted in a self-adaptive manner within a certain range, the requirement of the arm support device on the installation precision of the arm support device is lowered, and the installation operation is more convenient.

Additionally, the utility model provides an arm support strutting arrangement among the above-mentioned technical scheme can also have following additional technical characteristic:

in the above technical solution, the limiting component specifically includes: the two guide grooves are arranged at the top of the support frame assembly and are arranged at intervals along the width direction, one end of each guide groove, which is far away from the other guide groove, is provided with a baffle, and the baffle is provided with a through hole; the sliding part comprises two limiting sliding blocks, each limiting sliding block is matched with one guide groove and can slide along the guide groove, the two sliding rods are respectively arranged in the two guide grooves, the sliding rods are arranged along the extending direction of the guide grooves, one end of each sliding rod is fixedly connected with one end, facing the baffle, of the limiting sliding block, and the other end of each sliding rod extends into the through hole; the elastic reset piece comprises a plurality of reset springs which are respectively arranged in the two guide grooves, the reset springs are arranged along the extending direction of the sliding rod, and the part, between the two limiting sliding blocks, of the top of the support frame assembly forms a support position.

In this technical scheme, spacing subassembly includes two guide ways, slider, slide bar and elasticity piece that resets, and wherein, the slider includes two spacing sliders, and elasticity piece that resets includes a plurality of reset spring. The two guide grooves are arranged at the top of the support frame assembly and are arranged at intervals along the width direction of the arm support device to reserve a space for the arm support device. The guide grooves extend along the width direction of the arm support device, one end, far away from the other guide groove, of each guide groove is provided with a baffle, and the baffle is provided with a through hole. The two limiting slide blocks are respectively matched with the two guide grooves, so that the part of the top of the support frame assembly, which is positioned between the two limiting slide blocks, forms a support position for supporting the arm support device. The displacement of the arm support device in the width direction is limited through the two limiting sliding blocks, so that the arm support device is prevented from shaking in the width direction. The limiting slide block is connected with the guide groove in a sliding mode, the limiting slide block can slide along the extending direction of the guide groove to realize the sliding of the limiting slide block relative to the support frame assembly, and the size of the support position is adjusted to be still matched with the limiting slide block when the position or the size of the arm support device in the width direction changes within a certain range. Wherein, limiting slide block is equipped with the slide bar towards the one end of baffle, stretches into in the through-hole on the baffle through setting up the slide bar to when limiting slide block receives pressure effect to the direction slip that is close to the baffle, lead to limiting slide block. Through set up reset spring in the guide way, and reset spring sets up along the extending direction of slide bar to make spacing slider form the compression to reset spring when sliding towards the baffle, make reset spring produce the elasticity in opposite direction, and reset spring's elasticity effect drive spacing slider through reset spring after the pressure that spacing slider received is eliminated.

In the technical scheme, a return spring is arranged in each guide groove, and the return spring is sleeved on the slide rod; and/or a plurality of reset springs are arranged in each guide groove, and two ends of each reset spring are respectively connected with the limiting slide block and the baffle.

In this technical scheme, reset spring can have multiple arrangement mode. Specifically, a return spring can be arranged in each guide groove, and the return spring is sleeved on the slide rod so as to compress the return spring when the limiting slide block slides towards the baffle plate to generate reverse elastic force. A plurality of reset springs can be arranged in each guide groove, and two ends of each reset spring are connected with the limiting slide block and the baffle respectively so as to compress the plurality of reset springs when the limiting slide blocks slide towards the baffle to increase the elastic force. In addition, the two setting modes can exist simultaneously.

In the above technical scheme, the limiting slide block specifically comprises: the sliding block bottom plate is arranged in the guide groove; the sliding block side plate is connected to the sliding block bottom plate, and at least part of the sliding block side plate inclines towards the direction close to the baffle; the reinforcing rib is arranged on the slider bottom plate and fixedly connected with the slider bottom plate and the slider side plate.

In this technical scheme, spacing slider specifically includes slider bottom plate, slider curb plate and strengthening rib. The slide block bottom plate is arranged in the guide groove and can slide along the guide groove to drive the limiting slide block to move integrally. The sliding block side plates are arranged on the sliding block bottom plate and used for limiting the arm support device arranged on the supporting position, at least part of the sliding block side plates are arranged to incline towards the direction close to the baffle plate so as to form an inclined surface, so that the arm support device is contacted with the arm support device through the inclined surface when falling, the sliding block side plates are extruded by the gravity of the arm support device, the sliding block side plates drive the sliding block bottom plate to slide along the guide groove, the distance between the two sliding block side plates is adjusted, and the size of the supporting position is matched with the width size of the arm support device and the position of the arm support device in the. Through set up the strengthening rib on the slider bottom plate, and strengthening rib and slider bottom plate and slider curb plate fixed connection to improve limit slide's bulk strength.

In the above technical scheme, the two side walls of the guide groove are provided with bending structures extending inwards, and the bending structures shield at least part of the bottom plate of the sliding block so as to limit the displacement of the limiting sliding block in the height direction.

In this technical scheme, through be equipped with the structure of buckling of inside extension on two lateral walls of guide way, and buckle the structure and form to shelter from at least partial slider bottom plate for the open-top's of guide way width is less than the width of slider bottom plate, and it is spacing to carry out spacing slider in the direction of height, prevents that spacing slider and guide way from breaking away from. It can be understood that the boom device is frequently lifted or lowered, a large friction force is generated when the boom device is in surface contact with the limiting slide block, the limiting slide block is easy to displace in the height direction under the action of the friction force, and the bending structure on the guide groove can effectively prevent the limiting slide block from being separated from the guide groove under the driving of the friction force of the boom device.

In the above technical solution, the support frame assembly specifically includes: the two supporting vertical beams are arranged at intervals along the width direction of the arm support device, and the supporting vertical beams are provided with first through pin holes; the supporting beam is fixedly connected to the tops of the two supporting vertical beams, the two supporting bases are connected with the mounting surface, a plurality of penetrating second pin holes are formed in the supporting bases along the height direction, the two supporting bases are connected with the two supporting vertical beams through pin shafts respectively, the limiting assembly is arranged at the top of the supporting beam, and the first pin holes can be matched with the at least two second pin holes.

In this technical scheme, the support frame subassembly specifically includes that two support are erect roof beam, support crossbeam and two support bases. The two supporting vertical beams are arranged at intervals along the width direction of the arm support device, and the supporting cross beam is fixedly connected to the tops of the two supporting vertical beams. The two supporting bases are respectively arranged corresponding to the two supporting vertical beams and connected with the mounting surface through the supporting bases, so that the arm support supporting device is mounted and fixed. Each supporting vertical beam is provided with a first through pin hole, each supporting base is provided with a plurality of second through pin holes along the height direction, the first pin holes can be matched with at least two second pin holes, and the supporting vertical beams and the supporting bases can be connected through pin shafts penetrating the first pin holes and the second pin holes. The limiting assembly is arranged at the top of the supporting beam to form a supporting position with the supporting beam through the limiting assembly, and the supporting position is used for supporting the arm support device. The number of the first pin holes may be one or more. The height of the arm support supporting device is adjusted through the matching of the first pin hole and different second pin holes so as to adapt to arm support devices with different heights, the supporting cross beam is fully contacted with the arm support device, and the arm support device is supported.

It can be understood that the heights of the arm support devices with different sizes or models in the retraction state may be different, and if the height of the arm support supporting device is too low to be in contact with the arm support device or the contact is insufficient, the supporting function cannot be fully exerted. When the boom support device is assembled on a working vehicle with the boom device, the boom device is easy to shake up and down during the running process of the working vehicle, so that the connecting part of the boom device and the working vehicle bears the gravity of the boom device, and the abrasion and the aging of the connecting part are easy to accelerate.

In the above technical solution, the support frame assembly further includes: the buffer piece is arranged at the top of the supporting cross beam and positioned between the two limiting slide blocks, and a first distance is reserved between the buffer piece and the guide groove; and/or one end of the guide groove, which is provided with the baffle plate, is arranged at the end part of the supporting beam.

In the technical scheme, the buffer piece is arranged at the top of the supporting cross beam and is positioned between the two limiting slide blocks, so that the arm support device can be buffered when falling onto the supporting cross beam, the arm support device is prevented from being in hard collision with the supporting cross beam, and the abrasion is reduced. Through limiting the first interval that exists between bolster and the guide way, can reserve certain space for spacing slider to increase spacing slider's slip stroke, enlarge the adjustment range of support position, spacing subassembly's adaptability is stronger. The end part of the supporting beam is arranged at one end provided with the baffle plate on the guide groove, so that the sliding stroke of the limiting slide block along the guide groove can be increased, and the expansion of the adjusting range of the supporting position is facilitated.

In the technical scheme, the support base is of a hollow structure, and the support vertical beam extends into the support base and is connected with the support base through a pin shaft; or the supporting vertical beam is of a hollow structure, and the supporting base extends into the supporting vertical beam and is connected with the supporting vertical beam through a pin shaft.

In the technical scheme, the supporting vertical beam and the supporting base can be sleeved with each other. Specifically, can set up the support base and be hollow structure, support in the perpendicular roof beam stretches into the support base, erect the roof beam through the round pin axle to supporting and fix, realize supporting to erect being connected between roof beam and the support base. Of course, the support vertical beam can be arranged to be of a hollow structure, the support base extends into the support vertical beam, the support vertical beam is fixed through the pin shaft, and the support vertical beam and the support base are connected.

The utility model discloses a second aspect technical scheme provides an operation vehicle, include: a vehicle body; the arm support device is arranged on the vehicle body, one end of the arm support device is rotatably connected with the vehicle body, and the arm support device can lift or descend relative to the vehicle body; the boom support device according to any one of the first aspect technical solutions is provided on the vehicle body corresponding to the boom device to support the boom device.

According to the utility model discloses second aspect technical scheme, the work vehicle includes automobile body, cantilever crane device and the cantilever crane strutting arrangement of any one of the above-mentioned first aspect technical scheme. The arm support device is arranged on the vehicle body, one end of the arm support device is rotatably connected with the vehicle body, and the arm support device is lifted or lowered through rotation of the arm support device relative to the vehicle body. The boom support device is arranged on the vehicle body and corresponds to the boom device, and the boom support device is arranged along the width direction of the boom device, so that when the boom device descends to the vehicle body, the boom support device supports the boom device, the boom device is kept stable in the height direction, meanwhile, the limiting component on the boom support device can limit the boom device in the width direction, the boom device is prevented from shaking or separating from the boom support device in the moving process of the vehicle body, and the stability of the boom device is improved. In addition, the working vehicle in this scheme also has all the beneficial effects of the boom support device in any one of the above-mentioned first aspect technical solutions, which are not described herein again.

In the above technical solution, the working vehicle is a concrete pump truck or a fire truck, wherein the boom device includes a plurality of jointed arms that can be folded or unfolded with each other, and the boom device is placed on the boom support device when in a folded and retracted state.

In the technical scheme, the operation vehicle is a concrete pump truck or a fire truck, the boom device comprises a plurality of section arms, and the section arms can be mutually folded or unfolded to expand the working range of the boom device. When the arm support device is in a folding and withdrawing state, the arm support device is placed on the arm support supporting device so as to support the arm support device through the arm support supporting device and limit the arm support device in the width direction, and therefore the stability of the arm support device is improved.

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

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic view of a boom support according to an embodiment of the present invention;

fig. 2 shows a schematic view of an assembly of a boom support apparatus and a boom apparatus according to an embodiment of the present invention;

fig. 3 shows a schematic view of a boom support according to an embodiment of the present invention;

fig. 4 shows a cross-sectional view of a boom support apparatus according to an embodiment of the present invention;

fig. 5 shows a schematic view of a spacing block according to an embodiment of the invention;

fig. 6 shows a schematic view of a guide groove according to an embodiment of the invention;

fig. 7 illustrates an exploded schematic view of a support bracket assembly according to an embodiment of the present invention;

fig. 8 shows a schematic view of a support bracket assembly according to an embodiment of the present invention;

fig. 9 illustrates a cross-sectional view of a support bracket assembly according to an embodiment of the present invention;

fig. 10 shows a schematic view of a boom support according to an embodiment of the present invention;

fig. 11 shows a schematic view of a boom support according to an embodiment of the present invention;

fig. 12 shows a cross-sectional view of a boom support apparatus according to an embodiment of the present invention;

fig. 13 shows a schematic block diagram of a work vehicle according to an embodiment of the present invention.

The correspondence between reference numerals and components in fig. 1 to 13 is as follows:

the cantilever crane support device comprises a cantilever crane support device 1, a support frame assembly 11, a support vertical beam 111, a first pin hole 1111, a support cross beam 112, a support base 113, a second pin hole 1131, a pin shaft 114, a buffer 115, a limit assembly 12, a guide groove 121, a baffle 1211, a through hole 1212, a bending structure 1213, a sliding part 13, a limit sliding block 122, a sliding block bottom plate 1221, a sliding block side plate 1222, a 1223 reinforcing rib, a 123 sliding rod, a 14 elastic reset piece, a support position 15, a reset spring 124, a cantilever crane device 2 and a vehicle body 3.

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.

The boom support apparatus and the work vehicle according to some embodiments of the present invention will be described below with reference to fig. 1 to 13.

Example one

The embodiment provides a boom support device 1 for supporting a boom device 2. As shown in fig. 1, the boom support device 1 includes a support frame assembly 11 and a limiting assembly 12.

As shown in fig. 1 and 2, the support frame assembly 11 is used as a main structure of the boom support apparatus 1 and is disposed along a width direction of the boom apparatus 2, so that when the boom apparatus 2 is placed on the boom support apparatus 1, the boom apparatus 2 is supported by a top of the support frame assembly 11. The bottom of the support bracket assembly 11 is adapted to be connected to a mounting surface to stabilize the support bracket assembly 11. The limiting component 12 is disposed on the top of the supporting frame component 11, and the limiting component 12 and the top of the supporting frame component 11 form a supporting position 15, so that when the boom device 2 contacts the supporting frame component 11, the boom device 2 is located on the supporting position 15. Meanwhile, the limiting component 12 limits the boom device 2 in the width direction, so that the boom device 2 is prevented from shaking, and the stability of the boom device 2 is improved. The limiting assembly 12 comprises a sliding part 13 and an elastic resetting part 14, wherein the sliding part 13 is connected with the supporting frame assembly 11 in a sliding manner and can slide relative to the supporting frame assembly 11 so as to adjust the size of the supporting position 15; the elastic restoring member 14 is connected to the slider 13 to drive the slider 13 to restore its original position. When the boom support device 1 is arranged on a working vehicle with the boom device 2, the boom support device 1 is connected with the working vehicle through the bottom of the support frame assembly 11, so that the boom support device 1 is installed and fixed.

During the operation of the boom support device 1, the sliding member 13 can slide towards the two ends of the support frame assembly 11 along the width direction of the boom device 2 under the pressure of the boom device 2, so as to adjust the position adaptively within a certain range, and adapt to the position change of the boom device 2 in the width direction or the width dimension change of the boom device 2.

The boom support device 1 in this embodiment has a wide application range, and when the boom device 2 changes in the width direction or the width of the boom device 2 changes, the position of the limiting component 12 can be adaptively adjusted according to the width of the boom device 2, and the position of the limiting component 12 does not need to be manually adjusted, so that the requirement of the boom device 2 on the installation accuracy of the boom support device 1 is reduced, and the use is more convenient.

Example two

The boom support apparatus 1 in this embodiment is further improved based on the first embodiment.

As shown in fig. 1 to 4, the limiting assembly 12 includes two guide grooves 121, two limiting sliders 122, two slide rods 123, and two return springs 124. The two guide grooves 121 are disposed at the top of the support frame assembly 11 and spaced apart from each other along the width direction of the boom device 2. The guide slots 121 extend along the width direction of the arm support device 2, and a baffle 1211 is disposed at an end of each guide slot 121 away from the other guide slot 121, and a through hole 1212 is disposed on the baffle 1211. The two limiting sliders 122 are respectively matched with the two guide grooves 121, so that a supporting position 15 is formed at a part, located between the two limiting sliders 122, of the top of the support frame assembly 11, and is used for supporting the arm frame device 2, and displacement of the arm frame device 2 in the width direction is limited through the two limiting sliders 122. The limiting sliding block 122 is connected with the guide groove 121 in a sliding manner, and the limiting sliding block 122 can slide along the extending direction of the guide groove 121. Wherein, one end of the limiting sliding block 122 facing the baffle 1211 is provided with a sliding rod 123, and the sliding rod 123 is sleeved with a return spring 124; the slide rod 123 extends into the through hole 1212 of the stop 1211 and slides along the guide groove 121 with the limit slider 122. The size of the supporting position 15 is changed by the sliding of the limiting sliding block 122 along the guide groove 121, so that when the position of the boom device 2 is changed to a certain extent in the width direction or the width of the boom device 2 is changed to a certain extent, the limiting component 12 can still be matched with the boom device 2, and the supporting and limiting effects are realized.

When the limiting sliding block 122 slides towards the direction close to the baffle 1211 under the action of the pressure of the arm support device 2, the limiting sliding block compresses the return spring 124 and enables the return spring 124 to generate an elastic force in the opposite direction; after the pressure applied to the limit slider 122 is removed, the limit slider 122 is driven to return by the elastic force of the return spring 124.

In another implementation manner of this embodiment, a plurality of return springs 124 are disposed in the guide groove 121, and both ends of each return spring 124 are respectively connected to the position limiting slider 122 and the stop 1211, so that the elastic force is increased by the plurality of return springs 124. Of course, the two setting modes of the return spring 124 in the present embodiment may exist at the same time.

EXAMPLE III

The arm support supporting device 1 provided in the embodiment is further improved on the basis of the second embodiment.

As shown in fig. 5 and 6, the position restricting slider 122 includes a slider bottom plate 1221, a slider side plate 1222, and a reinforcing rib 1223. The slider bottom plate 1221 is disposed in the guide groove 121 and can slide along the extending direction of the guide groove 121 to drive the limiting slider 122 to move integrally. The slide block side plate 1222 is disposed on the slide block bottom plate 1221, and is configured to limit the arm support device 2 disposed on the support position 15. Wherein, the part of the slider side plate 1222 near the top is inclined to the direction near the baffle 1211 to form an inclined surface; the two limiting side plates are arranged oppositely, and the horn-shaped structure is formed from bottom to top in the height direction, so that when the arm support device 2 descends to the arm support supporting device 1, the arm support device contacts with the sliding block side plate 1222 first, the sliding block side plate 1222 extrudes the sliding block side plate 1222 by using the gravity of the arm support device 2, the sliding block side plate 1222 drives the sliding block bottom plate 1221 to slide along the guide groove 121, the distance between the two sliding block side plates 1222 is adjusted, and the size of the supporting position 15 is adapted to the width size of the arm support device 2. The strengthening rib 1223 is located on the slider bottom plate 1221, and strengthening rib 1223 and slider bottom plate 1221 and slider curb plate 1222 fixed connection to improve spacing slider 122's bulk strength. One end of the sliding rod 123 is fixedly connected to the reinforcing bar 1223.

Further, two side walls of the guide groove 121 are provided with bending structures 1213 extending inward for shielding at least a portion of the slider base plate 1221. The width of the top opening of the guide groove 121 is smaller than the width of the slider bottom plate 1221 to limit the limit slider 122 in the height direction, and prevent the limit slider 122 from being separated from the guide groove 121.

Example four

As shown in fig. 7 and 8, the support frame assembly 11 includes two support vertical beams 111, a support cross beam 112, and two support bases 113. The two supporting vertical beams 111 are arranged at intervals along the width direction of the arm support device 2 and are respectively connected with the two supporting bases 113; the support cross member 112 is fixedly attached to the top of the two support vertical members 111 to form a frame structure when the support frame assembly 11 is attached to a mounting surface. The two support bases 113 are respectively arranged corresponding to the two support vertical beams 111, and are connected with the installation surface through the support bases 113, so that the arm support supporting device 1 is installed and fixed. Each supporting vertical beam 111 is provided with a first through pin hole 1111, each supporting base 113 is provided with a plurality of second through pin holes 1131 along the height direction, and the first pin holes 1111 can be matched with at least two second pin holes 1131; the support vertical beam 111 is fixed by a pin 114 penetrating through the first pin hole 1111 and the second pin hole 1131, so that the support vertical beam 111 is connected with the support base 113. The height of the arm support supporting device 1 is adjusted by matching the first pin hole 1111 with different second pin holes 1131, so as to adapt to arm support devices 2 with different heights, which is beneficial to the sufficient contact between the supporting beam 112 and the arm support device 2, and promotes the supporting effect on the arm support device 2. The number of the first pin holes 1111 may be plural.

The limiting component 12 is arranged on the top of the supporting beam 112, so that a supporting position 15 is formed by the limiting component 12 and the supporting beam 112, and is used for supporting the boom device 2. The end of the guide groove 121 on which the baffle 1211 is disposed is located at the end of the supporting beam 112, and the sliding stroke of the limiting slider 122 can be enlarged by increasing the size of the guide groove 121, so as to further enlarge the width of the supporting position 15.

Further, as shown in fig. 9, a buffer 115 is further disposed on the supporting beam 112 and located on the supporting position 15 between the two limiting sliders 122, so as to buffer the boom device 2 when the boom device 2 descends onto the supporting beam 112, prevent the boom device 2 from rigidly colliding with the supporting beam 112, and facilitate reducing wear. A first distance exists between the buffer member 115 and the guide groove to increase the sliding stroke of the limiting slider 122 and expand the adjustment range of the support position 15. The buffer 115 may be a rubber block, plastic block, or other component that can buffer forces. The first distance may be set according to the specific dimensions of the boom apparatus 2 and the support beam 112.

EXAMPLE five

The arm support supporting device 1 provided in the present embodiment is further improved on the basis of the fourth embodiment.

As shown in fig. 7, the supporting base 113 is a hollow structure, and the supporting vertical beams 111 and the supporting base 113 can be sleeved with each other. Specifically, the support vertical beam 111 extends into the support base 113, the first pin hole 1111 of the support vertical beam 111 is matched with the second pin hole 1131 of the support base 113, and the pin 114 penetrates through the first pin hole 1111 and the second pin hole 1131 to fix the support vertical beam 111, so that the support vertical beam 111 is connected with the support base 113.

In another implementation manner of this embodiment, the supporting vertical beam 111 is a hollow structure, the supporting base 113 extends into the supporting vertical beam 111, and the supporting vertical beam 111 is fixed by the pin 114, so as to connect the supporting vertical beam 111 and the supporting base 113.

EXAMPLE six

The embodiment provides an arm support supporting device 1, which is used for supporting an arm support device 2, wherein the arm support supporting device 1 comprises a supporting frame component 11 and a limiting component 12.

As shown in fig. 10 to 12, the support frame assembly 11 is used as a main structure of the boom support device 1 and is arranged along a width direction of the boom device 2, so that when the boom device 2 is placed on the boom support device 1, the boom device 2 is supported by the top of the support frame assembly 11; the bottom of the support bracket assembly 11 is adapted to be connected to a mounting surface to stabilize the support bracket assembly 11. Specifically, the support frame assembly 11 includes two support vertical beams 111, a support cross beam 112, and two support bases 113. The two supporting vertical beams 111 are arranged at intervals along the width direction of the arm support device 2 and are respectively connected with the two supporting bases 113; the supporting cross beams 112 are fixedly connected to the tops of the two supporting vertical beams 111. The bottom of the support base 113 is used for being connected with a mounting surface, so that the arm support supporting device 1 is mounted and fixed. Each supporting vertical beam 111 is provided with a first through pin hole 1111, each supporting base 113 is provided with a plurality of second through pin holes 1131 along the height direction, and the first pin holes 1111 can be matched with at least two second pin holes 1131. The supporting base 113 is of a hollow structure, the supporting vertical beam 111 extends into the supporting base 113, a first pin hole 1111 in the supporting vertical beam 111 is matched with a second pin hole 1131 in the supporting base 113, and the pin shaft 114 penetrates through the first pin hole 1111 and the second pin hole 1131 to fix the supporting vertical beam 111, so that the connection between the supporting vertical beam 111 and the supporting base 113 is realized. The height of the arm support supporting device 1 is adjusted by matching the first pin hole 1111 with different second pin holes 1131, so as to adapt to arm support devices 2 with different heights, which is beneficial to the sufficient contact between the supporting beam 112 and the arm support device 2, and promotes the supporting effect on the arm support device 2.

The limiting component 12 is disposed on the top of the supporting beam 112, and the limiting component 12 and the top of the supporting beam 112 form a supporting position 15, so that when the boom device 2 descends onto the supporting beam 112, the limiting component 12 is located on the supporting position 15, and the boom device 2 is limited in the width direction. As shown in fig. 12, the limiting assembly 12 specifically includes two guide grooves 121, two limiting sliders 122, two sliding rods 123, and two return springs 124. The two guide grooves 121 are both disposed at the top of the supporting beam 112 and are spaced apart from each other in the width direction of the boom device 2. The guide grooves 121 extend along the width direction of the boom device 2, a baffle 1211 is disposed at one end of each guide groove 121 away from the other guide groove 121, and a through hole 1212 is disposed on the baffle 1211. The two limiting sliders 122 are respectively matched with the two guide grooves 121, so that a part of the top of the supporting beam 112, which is located between the two limiting sliders 122, forms a supporting position 15 for supporting the boom device 2, and the two limiting sliders 122 limit the displacement of the boom device 2 in the width direction. The limiting sliding block 122 is connected with the guide groove 121 in a sliding manner, and the limiting sliding block 122 can slide along the extending direction of the guide groove 121. The limit slider 122 is provided with a sliding rod 123 at one end facing the baffle 1211, the sliding rod 123 is sleeved with a return spring 124, and the sliding rod 123 extends into a through hole 1212 of the baffle 1211 and slides along the guide groove 121 along with the limit slider 122.

Specifically, the limit slider 122 includes a slider bottom plate 1221, slider side plates 1222, and a stiffener 1223. The slider bottom plate 1221 is disposed in the guide groove 121 and can slide along the guide groove 121 to drive the limiting slider 122 to move integrally. The slide block side plate 1222 is disposed on the slide block bottom plate 1221, and is configured to limit the arm support device 2 disposed on the support position 15. The portion of the slider side plate 1222 near the top is inclined toward the baffle 1211 to form an inclined surface; two spacing curb plates set up relatively, show loudspeaker column structure from bottom to top in the direction of height. The strengthening rib 1223 is located on the slider bottom plate 1221, and strengthening rib 1223 and slider bottom plate 1221 and slider curb plate 1222 fixed connection to improve spacing slider 122's bulk strength. One end of the sliding rod 123 is fixedly connected to the reinforcing bar 1223. When the boom device 2 descends to the boom support device 1, the boom device 2 first contacts with the slider side plate 1222, the slider side plate 1222 is squeezed by the gravity of the boom device 2, so that the slider side plate 1222 drives the slider bottom plate 1221 to slide along the guide groove 121, the distance between the two slider side plates 1222 is adjusted, and the size of the support position 15 is adapted to the position of the boom device 2 in the width direction and the width size of the boom device. When the arm support device 2 is in the lifting state, the pressure on the slider side plate 1222 is removed, and the limiting slider 122 is reset under the elastic force of the reset spring 124.

Two side walls of the guide groove 121 are provided with inwardly extending bending structures 1213 for shielding at least a portion of the slider base plate 1221. The width of the top opening of the guide groove 121 is smaller than the width of the slider bottom plate 1221 to limit the limit slider 122 in the height direction, and prevent the limit slider 122 from being separated from the guide groove 121. One end of the guide groove 121 on which the stopper 1211 is provided is located at an end of the support beam 112, and the sliding stroke of the stopper slider 122 can be enlarged by increasing the size of the guide groove 121, thereby further enlarging the width of the support site 15.

The supporting beam 112 is further provided with a buffer 115, which is located on the supporting position 15 between the two limiting sliders 122, so as to buffer the boom device 2 when the boom device 2 descends onto the supporting beam 112, prevent the boom device 2 from rigidly colliding with the supporting beam 112, and facilitate reducing wear. Wherein, there is first interval between bolster and the guide way to increase the slip stroke of spacing slider, enlarge the adjustment range of support position 15. The buffer 115 may be a rubber block, plastic block, or other component that can buffer forces. The first distance may be set according to the specific dimensions of the boom apparatus 2 and the support beam 112.

The boom support device 1 in this embodiment has a wide application range, and when the position of the boom device 2 in the width direction changes or the width size of the boom device changes, the limiting component 12 can be adaptively adjusted with respect to the boom device 2, and the position of the limiting component 12 does not need to be manually adjusted, so that the requirement of the boom device 2 on the installation accuracy of the boom support device 1 is reduced, the installation operation is more convenient, and the boom support device has stronger adaptability.

EXAMPLE seven

In the present embodiment, a work vehicle is provided, as shown in fig. 13, and includes a vehicle body 3, a boom device 2, and the boom support device 1 in any one of the above embodiments. The arm support device 2 and the arm support supporting device 1 are both arranged on the vehicle body 3 and can move along with the vehicle. One end of the arm support device 2 is rotatably connected with the vehicle body 3, and the arm support device 2 is lifted or lowered through the rotation of the arm support device 2 relative to the vehicle body 3. The arm support supporting device 1 is arranged along the width direction of the arm support device and corresponds to the arm support device 2, so that when the arm support device 2 descends to the vehicle body 3, the arm support device 1 supports the arm support device 2, and the arm support device 2 is kept stable in the height direction. The limiting component 12 on the arm support supporting device 1 can limit the arm support device 2 in the width direction, so that the arm support device 2 is prevented from shaking or separating from the arm support supporting device 1 in the moving process of the vehicle body 3, and the stability of the arm support device 2 is improved.

Further, the working vehicle is a concrete pump truck or a fire truck. The arm support device 2 arranged on the vehicle body 3 comprises a plurality of section arms, and the section arms can be mutually folded or unfolded to expand the working range of the arm support device 2. When the boom device 2 is in the folded and retracted state, the boom device is placed on the boom support device 1 (in the state shown in fig. 2), so that the boom support device 1 supports the boom device 2, and the boom device 2 is limited in the width direction, thereby improving the stability of the boom device 2.

In addition, the working vehicle in the present scheme also has all the beneficial effects of the boom support device 1 in any of the above embodiments, which are not described herein again.

Above combine the figure to describe in detail the technical scheme of the utility model, the size of spacing subassembly can be according to cantilever crane device self-adaptation adjustment to when the position of cantilever crane device on the width direction changes or width size changes still can with cantilever crane device looks adaptation, need not manual adjustment operation, convenient and fast, and reduced cantilever crane strutting arrangement's installation accuracy requirement, the installation of being convenient for.

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 boom support device (1), characterized by comprising:

the support frame assembly (11) is used for supporting the arm support device (2), the support frame assembly (11) is arranged along the width direction of the arm support device (2), and the bottom of the support frame assembly (11) is used for being connected with a mounting surface;

the limiting component (12) is arranged at the top of the support frame component (11), a support position (15) is formed by the limiting component (12) and the top of the support frame component (11) and used for limiting the arm support device (2) arranged at the support position (15) in the width direction,

the limiting assembly (12) comprises a sliding part (13) and an elastic resetting part (14), the sliding part (13) is connected with the supporting frame assembly (11) in a sliding mode, and the elastic resetting part (14) is connected with the sliding part (13) so that the sliding part (13) is reset.

2. The boom support device (1) according to claim 1, characterized in that the limiting assembly (12) comprises in particular:

the two guide grooves (121) are arranged at the top of the support frame assembly (11) and are arranged at intervals along the width direction, one end, away from the other guide groove (121), of each guide groove (121) is provided with a baffle (1211), and a through hole (1212) is formed in each baffle (1211);

the sliding part (13) comprises two limiting sliding blocks (122), and each limiting sliding block (122) is matched with one guide groove (121) and can slide along the guide groove (121);

the two sliding rods (123) are respectively arranged in the two guide grooves, the sliding rods are arranged along the extending direction of the guide grooves (121), one end of each sliding rod (123) is fixedly connected with one end, facing the baffle (1211), of the corresponding limiting sliding block (122), and the other end of each sliding rod (123) extends into the corresponding through hole;

the elastic reset piece (14) comprises a plurality of reset springs (124) which are respectively arranged in the two guide grooves (121), the reset springs (124) are arranged along the extending direction of the sliding rod (123),

wherein, the part of the top of the support frame component (11) between the two limit sliders (122) forms the support position (15).

3. Boom support (1) according to claim 2,

each guide groove (121) is internally provided with one return spring (124), and the return spring (124) is sleeved on the sliding rod (123); and/or

A plurality of return springs (124) are arranged in each guide groove (121), and two ends of each return spring (124) are respectively connected with the limiting sliding block (122) and the baffle (1211).

4. The boom support device (1) according to claim 2, wherein the limiting slider (122) comprises:

the sliding block bottom plate (1221) is arranged in the guide groove (121);

a slider side plate (1222) connected to the slider bottom plate (1221), at least a part of the slider side plate (1222) being inclined in a direction approaching the stopper (1211);

and the reinforcing ribs (1223) are arranged on the sliding block bottom plate (1221), and the reinforcing ribs (1223) are fixedly connected with the sliding block bottom plate (1221) and the sliding block side plate (1222).

5. The boom support (1) according to claim 4,

and two side walls of the guide groove (121) are provided with inwards extending bending structures (1213), and the bending structures (1213) shield at least part of the slider bottom plate (1221) so as to limit the displacement of the limiting slider (122) in the height direction.

6. The boom support device (1) according to claim 2, characterized in that the support frame assembly (11) comprises in particular:

the two supporting vertical beams (111) are arranged at intervals along the width direction of the arm support device, and the supporting vertical beams (111) are provided with first through pin holes (1111);

the supporting cross beam (112) is fixedly connected to the tops of the two supporting vertical beams (111);

two supporting bases (113) used for being connected with the mounting surface, a plurality of second pin holes (1131) which penetrate through the supporting bases (113) are arranged along the height direction, the two supporting bases (113) are respectively connected with the two supporting vertical beams (111) through pin shafts (114),

wherein the limiting component (12) is arranged at the top of the supporting cross beam (112), and the first pin hole (1111) can be matched with at least two second pin holes (1131).

7. The boom support device (1) according to claim 6, characterized in that the support frame assembly (11) further comprises:

the buffer piece (115) is arranged at the top of the supporting cross beam (112), the buffer piece (115) is positioned between the two limiting sliding blocks (122), and a first distance is reserved between the buffer piece (115) and the guide groove; and/or

One end of the guide groove (121) provided with the baffle (1211) is arranged at the end part of the supporting beam (112).

8. The boom support (1) according to claim 6,

the supporting base (113) is of a hollow structure, and the supporting vertical beam (111) extends into the supporting base (113) and is connected with the supporting base (113) through the pin shaft (114); or

The supporting vertical beam (111) is of a hollow structure, and the supporting base (113) extends into the supporting vertical beam (111) and is connected with the supporting vertical beam (111) through the pin shaft (114).

9. A work vehicle, characterized by comprising:

a vehicle body (3);

the arm support device (2) is arranged on the vehicle body (3), one end of the arm support device (2) is rotatably connected with the vehicle body (3), and the arm support device (2) can be lifted or lowered relative to the vehicle body (3);

the boom support device (1) according to any of claims 1 to 8, being provided on the vehicle body (3) in correspondence with the boom device (2) for supporting the boom device (2).

10. The work vehicle according to claim 9,

the operation vehicle is a concrete pump truck or a fire truck,

the arm support device (2) comprises a plurality of sections which can be folded or unfolded mutually, and the arm support device (2) is placed on the arm support supporting device (1) when being in a folded and retracted state.