CN214689209U - Hoisting apparatus and wrecker - Google Patents

Abstract

The utility model provides a hoisting apparatus and wrecker, hoisting apparatus includes: a turntable; the crane boom is pivotally connected with the rotary table; one end of the first driving part is connected with the rotary table, and the other end of the first driving part is pivotally connected with the cargo boom; the hoe-assisting assembly is connected with the crane boom; the dragging assembly is connected with the rotary table and the crane boom; the first driving piece can drive the crane boom to rotate relative to the rotary table, and the hoe-assisting assembly is used for supporting the crane boom. The technical scheme of the utility model, when the jib loading boom rotates the position that pulls that waits to pull the thing for the revolving stage, help the one end of hoe subassembly to support in the below of jib loading boom, help the other end of hoe subassembly to support subaerial, pull the subassembly like this and pull when waiting to pull the thing, help the hoe subassembly can transmit the jib loading boom and the gravity of waiting to pull the thing to ground to avoid the jib loading boom to take place to warp or cracked problem because the atress is too big, and then ensure that hoisting apparatus can normally work.

Description

Hoisting apparatus and wrecker

Technical Field

The utility model relates to a hoisting equipment technical field particularly, relates to a hoisting apparatus and wrecker.

Background

At present, a boom of a hoisting device in the related art is usually supported by a single point, and when the hoisting device hoists a heavy object, only one force application point of the boom is provided, so that the boom is stressed unevenly, and when the boom is stressed excessively, the boom is bent or broken, so that the hoisting device cannot work normally, and meanwhile, the operation risk of field workers is increased.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

Therefore, the utility model discloses an aim at provides a hoisting apparatus.

Another object of the utility model is to provide a wrecker.

In order to achieve the above object, an embodiment of the present invention provides a lifting device, including: a turntable; the crane boom is pivotally connected with the rotary table; one end of the first driving piece is pivotally connected with the rotary table, and the other end of the first driving piece is pivotally connected with the cargo boom; the hoe-assisting assembly is connected with the crane boom; the dragging assembly is connected with the rotary table and the crane boom; the first driving piece can drive the crane boom to rotate relative to the rotary table, and the hoe-assisting assembly is used for supporting the crane boom.

In the technical scheme, when the jib rotates the position of pulling of waiting to pull the thing for the revolving stage, help the one end of hoe subassembly to support in the below of jib loading boom, help the other end of hoe subassembly to support subaerial, it pulls when waiting to pull the thing to pull the subassembly like this, help the hoe subassembly to transmit the jib loading boom and the gravity of waiting to pull the thing to ground as the auxiliary stay point, make the jib loading boom atress even, thereby avoid the jib loading boom because the atress is too big and take place to warp or cracked problem, and then ensure that hoisting apparatus can normally work, site work personnel's operation risk has been reduced.

Additionally, the utility model provides a hoisting apparatus in above-mentioned embodiment can also have following additional technical characterstic:

in the above technical solution, the turntable includes a base and a rotating assembly disposed on the base, the boom is pivotally connected to the rotating assembly, and one end of the first driving member is pivotally connected to the rotating assembly.

In the technical scheme, the crane boom is pivotally connected with the rotary assembly, so that the rotary assembly drives the crane boom to rotate, and the crane boom can also turn over relative to the rotary table, so that the crane boom can rapidly move to the dragging position of the object to be dragged, the object to be dragged is rapidly dragged, and the hoisting efficiency of the hoisting device is improved. In addition, the first driving part can control the overturning angle of the crane boom, so that the crane boom can be accurately overturned to the dragging position of the object to be dragged, the overturning precision of the crane boom is improved, and the hoisting efficiency of the hoisting device is improved.

In any one of the above technical solutions, the hoe-assist assembly includes: one end of the telescopic short section is pivotally connected with the crane boom; the hoe is connected with the other end of the telescopic short section; one end of the second driving piece is connected with the telescopic short section, and the other end of the second driving piece is connected with the crane boom; wherein, flexible nipple joint can drive the hoe along the axial direction of flexible nipple joint flexible, and the second driving piece can drive flexible nipple joint and hoe and rotate for the jib loading boom.

In this technical scheme, because the one end and the jib loading boom pivot joint of flexible nipple joint, flexible nipple joint can drive the hoe along the axial direction of flexible nipple joint flexible, the hoe can stretch out and draw back along the axial of flexible nipple joint like this, can rotate around the jib loading boom again, conveniently adjusts reasonable supporting position with the hoe like this, supports the jib loading boom to make the hoe can support the jib loading boom better, and then ensure that hoisting apparatus can work high-efficiently. In addition, the second driving piece can drive the telescopic short section and the hoe to rotate to the supporting position quickly, so that the hoe can be guaranteed to support the lifting arm well, and the lifting device can work normally.

In any one of the above technical solutions, the telescopic short section includes a plurality of joint bars sequentially connected along a first direction, wherein one joint bar of any two adjacent joint bars can be telescopic in the first direction relative to the other joint bar; one of the plurality of links is pivotally connected to the lift arm and another of the plurality of links is connected to the hoe head.

In this technical scheme, flexible nipple joint adopts the mode of the relative shrink of a plurality of section poles to make the hoe can stretch out and draw back in the first direction to ensure that the hoe can support the jib loading boom well. Therefore, the telescopic short section has a simple structure and is easy to manufacture and maintain, and the manufacturing and maintenance cost of the hoisting device is reduced.

In any of the above solutions, the first driving member comprises a hydraulic cylinder or a driving cylinder, and/or the second driving member comprises a hydraulic cylinder or a driving cylinder.

In this technical scheme, the pneumatic cylinder is the hydraulic drive spare commonly used, and the share in market is high, and first driving piece and second driving piece adopt the pneumatic cylinder be convenient for the change and the maintenance in its later stage to the maintenance and the use cost in hoisting apparatus later stage have been reduced.

In any of the above technical solutions, the lifting device further includes a first support, the first support is connected with the lift arm, and the first driving member and the second driving member are pivotally connected with the lift arm through the first support.

In the technical scheme, the first support strengthens the connection strength of the first driving piece and the second driving piece with the cargo boom, so that the situation that the first driving piece and the second driving piece fall off from the cargo boom due to insufficient connection strength of the first driving piece and the second driving piece with the cargo boom is prevented when the hoisting device works, and the hoisting device can normally work.

In any one of the above technical solutions, the hoisting device further includes a second support, the second support is connected with the boom, and the telescopic short section is pivotally connected with the boom through the second support.

In this technical scheme, the joint strength of flexible nipple joint and jib loading boom has been strengthened to the second support, prevents that hoisting apparatus from at the during operation, because the joint strength of flexible nipple joint and jib loading boom is not enough and lead to the condition that flexible nipple joint drops from the jib loading boom to appear, and then ensures that hoisting apparatus can normally work.

In any of the above solutions, the drag assembly comprises: the winch is arranged on the rotary component; the pulley is arranged on the crane boom; and the pull rope is sleeved on the winch and the pulley.

In this technical scheme, the one end of stay cord with wait to pull the thing and be connected, the other end and the capstan winch of stay cord are connected, and the stay cord can be tightened up to the capstan winch like this to will wait to pull the thing and pull preset position. In addition, in the whole dragging process, the pull rope slides on the pulley, so that the tightening efficiency of the winch on the pull rope is improved, and the dragging assembly can work efficiently.

In any of the above technical solutions, the rotation assembly includes a rotating electrical machine and a rotating bracket connected to the rotating electrical machine.

In this technical scheme, the drive shaft and the runing rest of rotating electrical machines are connected, make the runing rest rotate by rotation like this to satisfy hoisting device's operational requirement, and then ensure that hoisting device can normally work.

The utility model discloses technical scheme of second aspect provides a wrecker, and wrecker includes the chassis and sets up the hoisting apparatus on the chassis, and hoisting apparatus is arbitrary hoisting apparatus in the first aspect technical scheme.

The utility model discloses the technical scheme of the second aspect provides a wrecker because of hoisting apparatus including any one in the first aspect technical scheme, therefore has all beneficial effects that any one of above-mentioned technical scheme had, no longer gives unnecessary details here.

In the above scheme, hoisting apparatus's helping hoe subassembly can follow the jib loading boom and together carry out the omnidirectional rotation, make hoisting apparatus drag the thing of waiting to pull in the side position of obstacles removing car like this to satisfy the operating mode that vehicle side position dragged, be applicable to constrictive road conditions, it is convenient like this will be dragged near back by rescue vehicle (waiting to pull the thing), the rethread pulls the subassembly and lifts by crane and right, it removes or places the obstacles removing car rear to place on the trailer to be placed by rescue vehicle, utilize the trailing arm to drag along with the car. Thereby ensuring that the rescue task on site can be smoothly completed. Compare with the obstacles removing car among the correlation technique, the obstacles removing car in this application can be applicable to the operating mode that side position was dragged, has improved the application range of obstacles removing car like this, has strengthened the ability of dragging of obstacles removing car.

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 structural diagram of a lifting device according to an embodiment of the present invention (the lifting device is in a traveling state, and a hoe is not installed);

FIG. 2 shows a schematic view of the lifting device of FIG. 1 (the lifting device is in an operative state, with a hoe attached);

fig. 3 shows a schematic structural diagram of the telescopic short joint in fig. 1 (the telescopic short joint is in a contracted state);

fig. 4 shows a schematic structural diagram of the telescopic short joint in fig. 1 (the telescopic short joint is in an extended state);

FIG. 5 is a schematic view showing the joint of the joint bar and the hoe shown in FIG. 2 (the hoe has a toothed structure);

FIG. 6 shows a schematic view of the joint of the pitch bar and hoe of FIG. 2 (the hoe is in the form of a nylon backing plate);

figure 7 shows the block removing vehicle according to the embodiment of the utility model.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 7 is:

10. a turntable; 12. a base; 14. a swivel assembly; 142. a rotating electric machine; 144. rotating the bracket; 20. a cargo boom; 22. a base arm; 24. a distal arm; 30. a first driving member; 40. a first support; 50. a hoe-assisting component; 52. a telescopic short section; 522. a rod is saved; 54. hoe; 56. a second driving member; 60. a drag assembly; 62. a winch; 64. a pulley; 66. pulling a rope; 70. a second support; 80. a chassis; 90. a hoisting device; 100. wrecker.

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.

Note that the first direction in this application refers to the axial direction of the telescopic short piece 52 in fig. 4.

A hoisting device 90 and a wrecker 100 according to some embodiments of the present invention will be described below with reference to fig. 1 to 7.

As shown in fig. 1 and 2, embodiments of the present invention provide a lifting device 90, wherein the lifting device 90 includes a turntable 10, a boom 20, a first driving member 30, a hoe-assist assembly 50, and a towing assembly 60. Wherein the crane arm 20 is pivotally connected with the rotary table 10; one end of the first driving member 30 is pivotally connected to the turntable 10, and the other end of the first driving member 30 is pivotally connected to the lift arm 20. Hoe-assist assembly 50 is coupled to boom 20, and towing assembly 60 is coupled to turret 10 and boom 20. Wherein the first driving member 30 can drive the boom 20 to rotate relative to the turntable 10, and the hoe assembly 50 is used for supporting the boom 20.

In the above arrangement, when the boom 20 rotates to the dragging position of the object to be dragged relative to the turntable 10, one end of the hoe-assisting assembly 50 is supported below the boom 20, and the other end of the hoe-assisting assembly 50 is supported on the ground, so that when the dragging assembly 60 drags the object to be dragged, the hoe-assisting assembly 50 serves as an auxiliary supporting point to transmit the gravity of the boom 20 and the object to be dragged to the ground, so that the boom 20 is uniformly stressed, the problem that the boom 20 is deformed or broken due to too large stress is avoided, the hoisting device 90 is ensured to normally work, and the operation risk of field workers is reduced.

It should be noted that, as shown in fig. 1 and 2, the boom 20 includes a base arm 22 and a final arm 24. Wherein the end arm 24 can slide on the base arm 22 to achieve the telescopic function of the jib boom 20.

Specifically, as shown in fig. 1 and 2, in an embodiment of the present invention, the turntable 10 includes a base 12 and a swiveling assembly 14 disposed on the base 12, the lift arm 20 is pivotally connected to the swiveling assembly 14, and one end of the first driving member 30 is pivotally connected to the swiveling assembly 14.

In the above arrangement, since the lift arm 20 is pivotally connected to the rotating assembly 14, the rotating assembly 14 can drive the lift arm 20 to rotate, and the lift arm 20 can also be turned relative to the turntable 10, so that the lift arm 20 can be quickly moved to a dragging position of an object to be dragged, and the object to be dragged can be quickly dragged, thereby improving the hoisting efficiency of the hoisting device 90. In addition, the first driving member 30 can control the turning angle of the crane boom 20, so as to ensure that the crane boom 20 can be accurately turned to the dragging position of the object to be dragged, thereby improving the turning precision of the crane boom 20 and further improving the lifting efficiency of the lifting device 90.

Specifically, as shown in fig. 1 to 6, in an embodiment of the present invention, the hoe assembly 50 includes a telescopic short section 52, a hoe 54, and a second driving member 56. Wherein, one end of the telescopic short joint 52 is pivotally connected with the crane arm 20. The hoe 54 is connected with the other end of the telescopic short joint 52. One end of the second driving member 56 is connected to the telescopic short piece 52, and the other end is connected to the boom 20. The telescopic short section 52 can drive the hoe 54 to extend and retract along the axial direction of the telescopic short section 52, and the second driving piece 56 can drive the telescopic short section 52 and the hoe 54 to rotate relative to the crane arm 20.

In the above arrangement, because one end of the telescopic short section 52 is pivotally connected to the boom 20, the telescopic short section 52 can drive the hoe 54 to extend and retract along the axial direction of the telescopic short section 52, so that the hoe 54 can extend and retract along the axial direction of the telescopic short section 52 and can rotate around the boom 20, and the hoe 54 can be conveniently adjusted to a reasonable supporting position to support the boom 20, so that the hoe 54 can better support the boom 20, and the hoisting device 90 can be ensured to work efficiently. In addition, the second driving member 56 can drive the telescopic short section 52 and the hoe 54 to rotate to the supporting position quickly, so as to ensure that the hoe 54 can support the lifting arm 20 well, and thus ensure that the lifting device 90 can work normally.

Specifically, as shown in fig. 3 and 4, in an embodiment of the present invention, the telescopic short section 52 includes three joint rods 522 sequentially connected along a first direction, wherein one joint rod 522 of any two adjacent joint rods 522 can be extended and retracted in the first direction relative to the other joint rod 522. One link 522 of the three links 522 is pivotally coupled to the lift arm 20 and the other link 522 of the three links 522 is coupled to the hoe 54.

In the above arrangement, the telescopic short section 52 adopts a relatively contracted manner of the plurality of section rods 522 to enable the hoe 54 to be telescopic in the first direction, so as to ensure that the hoe 54 can support the lifting arm 20 well. Therefore, the telescopic short joint 52 is simple in structure and easy to manufacture and maintain, and the manufacturing and maintenance cost of the lifting device 90 is reduced.

It should be noted that, according to actual conditions, a driving device may be disposed inside or on one side of the telescopic short section 52 for driving the telescopic short section 52 to extend and retract, and the driving mode may be driven by a hydraulic cylinder or a driving cylinder. Of course, the present invention is not limited to the above two driving methods, and other driving methods, such as a pulley mechanism driving method, may be adopted.

It should be noted that the number of the nodal-bars 522 can be set according to the arrangement of the wreckers 100 with different tonnages and the whole machine, for example, the number of the nodal-bars 522 can be set to two or four or more.

It should be noted that the connection between the hoe 54 and the tail link (link 522 located at the free end of the telescopic short link 52) is in a modular form, and different forms of road surfaces are connected by different forms of hoe 54. For example, as shown in FIG. 6, a nylon mat is used on a level road, and as shown in FIG. 5, a tooth-like hoe 54 is used on a non-level road, which is beneficial to increase the supporting force with respect to the ground.

Specifically, as shown in fig. 1 and 2, in an embodiment of the present invention, the first driving member 30 includes a hydraulic cylinder, and the second driving member 56 of the lifting device 90 includes a hydraulic cylinder.

In the above arrangement, the hydraulic cylinder is a common hydraulic driving member, the market share is high, and the first driving member 30 and the second driving member 56 adopt the hydraulic cylinder to facilitate the later replacement and maintenance thereof, so that the later maintenance and use cost of the lifting device 90 is reduced.

Specifically, as shown in fig. 1 and 2, in an embodiment of the present invention, the lifting device 90 further includes a first support 40, the first support 40 is connected to the lift arm 20, and the first driving member 30 and the second driving member 56 of the lifting device 90 are pivotally connected to the lift arm 20 through the first support 40.

In the above arrangement, the first support 40 enhances the connection strength between the first driving member 30 and the second driving member 56 and the lift arm 20, so as to prevent the first driving member 30 and the second driving member 56 from falling off from the lift arm 20 due to insufficient connection strength between the first driving member 30 and the second driving member 56 and the lift arm 20 when the lifting device 90 is in operation, thereby ensuring that the lifting device 90 can operate normally.

Specifically, as shown in fig. 1 and fig. 2, in an embodiment of the present invention, the lifting device 90 further includes a second support 70, the second support 70 is connected to the boom 20, and the telescopic short section 52 of the lifting device 90 is pivotally connected to the boom 20 through the second support 70.

In the above arrangement, the second support 70 strengthens the connection strength between the telescopic short section 52 and the boom 20, so as to prevent the telescopic short section 52 from falling off from the boom 20 due to insufficient connection strength between the telescopic short section 52 and the boom 20 when the lifting device 90 is in operation, thereby ensuring that the lifting device 90 can normally operate.

Specifically, as shown in fig. 1 and 2, in an embodiment of the present invention, the towing assembly 60 includes a winch 62, a pulley 64, and a pull cord 66. Wherein the winch 62 is provided on the swing assembly 14 of the turntable 10. A pulley 64 is provided on the boom 20 and a pull cord 66 is provided over the winch 62 and the pulley 64.

In the above arrangement, one end of the pulling rope 66 is connected to the object to be dragged, and the other end of the pulling rope 66 is connected to the winch 62, so that the winch 62 can tighten the pulling rope 66, thereby dragging the object to be dragged to a preset position. Additionally, the pull cord 66 slides over the pulley 64 throughout the towing process, which increases the efficiency of the winch 62 in tightening the pull cord 66, thereby ensuring efficient operation of the towing assembly 60.

Specifically, as shown in fig. 1 and 2, in an embodiment of the present invention, the swing assembly 14 of the lifting device 90 includes a rotating motor 142 and a rotating bracket 144 connected to the rotating motor 142.

In the above arrangement, the driving shaft of the rotating motor 142 is connected to the rotating bracket 144, so that the rotating bracket 144 can rotate, thereby meeting the working requirements of the lifting device 90 and ensuring that the lifting device 90 can work normally.

As shown in fig. 7, the utility model provides a wrecker 100, the wrecker 100 comprises a chassis 80 and a lifting device 90 arranged on the chassis 80, and the lifting device 90 is the lifting device 90 in any one of the embodiments of the first aspect.

In the above arrangement, the hoe-assisting assembly 50 of the lifting device 90 can rotate together with the crane boom 20 in an omnidirectional manner, so that the lifting device 90 can drag the object to be dragged in the lateral direction of the wrecker 100, thereby meeting the dragging condition of the lateral position of the vehicle, being applicable to narrow road conditions, and being convenient for dragging the rescued vehicle (object to be dragged) to the near place, then being lifted and righted by the dragging assembly 60, so as to place the rescued vehicle on the trailer to be moved away or placed behind the wrecker 100, and being dragged along with the crane boom. Thereby ensuring that the rescue task on site can be smoothly completed. Compared with the wrecker 100 in the related art, the wrecker 100 in the application can be suitable for the working condition of side position dragging, so that the application range of the wrecker 100 is enlarged, and the dragging capability of the wrecker 100 is enhanced.

It should be noted that the wrecker 100 in the related art can only be dragged right behind the vehicle, and the winch on the hoisting device 90 is generally only used for hoisting and righting the rescued vehicle, so that the requirement of the working condition that the rescued vehicle is dragged at the side position in narrow road conditions cannot be met. Hoisting apparatus 90 in this application helps hoe assembly 50 because of setting up to help hoe assembly 50 can follow jib loading boom 20 and together carry out the omnidirectional rotation, makes hoisting apparatus 90 pull the rescued vehicle in the side position of wrecker 100 like this, thereby satisfies the operating mode requirement that vehicle side position pulled. Take the wrecker 100 who helps the novel hoisting apparatus 90 of hoe subassembly 50 in this application, the rescue operating mode under the adaptable different situation, it is high to exhibition receipts quick reliability to have good economic nature. In addition, the leg form of the wrecker 100 provided with the lifting device 90 of the assisted-hoe assembly 50 is not limited, and the inclined swing leg may not be used.

The utility model discloses the technical scheme of second aspect provides a wrecker 100, because of hoisting apparatus 90 including any one in the first aspect embodiment, therefore have all beneficial effects that any one of above-mentioned embodiments had, no longer describe herein.

The hoisting device 90 and the wrecker 100 in the present application have the following advantages:

1. the lifting device 90 adopts a left-right centering support structure, so that the centering performance of the hoe-assisting assembly 50 and the crane boom 20 is guaranteed, the hoe-assisting assembly 50 is integrally recovered and unfolded and the telescopic short section 52 is extended and retracted in a hydraulic cylinder driving mode, and therefore the operation is quicker and safer;

2. the problem of lateral dragging on a road is solved;

3. the rescue mode of one vehicle under various working conditions is realized;

4. the rescue efficiency of the road is improved;

5. the hoisting device 90 is simple, convenient, reliable and economical in unfolding and recovering modes;

6. the joint rod 522 at the free end of the telescopic short joint 52 adopts a modular connection mode, and is suitable for different ground working conditions.

The following describes in detail the deployment and retraction of the lifting device 90 of the wrecker 100 according to the present application.

The deployment steps of the novel lifting device 90 are as follows:

the first step is as follows: after the wrecker 100 is parked, the legs are extended to level the frame.

The second step is that: after the boom 20 is driven to rotate to a certain angle by the first driving unit 30, the telescopic short section 52 is rotated around the hinge shaft of the first support 40 by the second driving unit 56, so that the telescopic short section 52 rotates toward the turntable 10 and approaches the boom 20.

The third step: the turntable 10 and the crane arm 20 are rotated to a position at the side of the vehicle to align the rescued vehicle. And sequentially extending the three section rods 522 of the telescopic short section 52 to a certain distance, and connecting a backing plate nylon, a wood plate and the like or the toothed hoe 54 with the section rods 522 at the free end of the telescopic short section 52.

The fourth step: the winch 62 of the hoisting apparatus 90 is released, and the operator connects the pull rope 66, i.e., the wire rope, to the rescued vehicle in preparation for towing.

The steps of removing the novel hoisting device 90 are as follows:

the first step is as follows: when the rescued vehicle is lifted off the site, the boom 20 is driven to rotate to a certain angle by the first driving piece 30, and then the hoe 54 is disconnected with the joint rod 522 at the free end of the telescopic short joint 52.

The second step is that: three joint rods 522 of the telescopic short joint 52 are sequentially retracted.

The third step: the drag assembly 60 is rotated about the hinge axis of the first bracket 40 by the second driving member 56 to rotate the telescopic nipple 52 toward the turntable 10, thereby approaching the lift arm 20.

The fourth step: the turntable 10 and the boom 20 are rotated to the center position of the vehicle.

The fifth step: the telescopic nipple 52 is perpendicular to the carriage deck by means of the first drive 30. The jib 20 is rotated to the horizontal position by the first drive 30.

From the above description, it can be seen that when the boom 20 rotates to the dragging position of the object to be dragged relative to the turntable 10, one end of the assisted-hoe assembly 50 is supported below the boom 20, and the other end of the assisted-hoe assembly 50 is supported on the ground, so that when the dragging assembly 60 drags the object to be dragged, the assisted-hoe assembly 50 can transmit the gravity of the boom 20 and the object to be dragged to the ground, thereby avoiding the problem that the boom 20 is deformed or broken due to an excessive force, and further ensuring that the hoisting device 90 can work normally. The hoe-assisting assembly 50 of the lifting device 90 can rotate together with the crane boom 20 in an all-directional manner, so that the lifting device 90 can drag an object to be dragged in the lateral direction of the wrecker 100, thereby meeting the requirement of the working condition of dragging in the lateral direction of the vehicle, being applicable to narrow road conditions, being convenient to drag a rescued vehicle (the object to be dragged) to a nearby place, then being lifted and righted by the dragging assembly 60, and being capable of placing the rescued vehicle on a trailer to be moved away or behind the wrecker 100 and being dragged along with the wrecker by the supporting arm. Thereby ensuring that the rescue task on site can be smoothly completed. Compared with the wrecker 100 in the related art, the wrecker 100 in the application can be suitable for the working condition of side position dragging, so that the application range of the wrecker 100 is enlarged, and the dragging capability of the wrecker 100 is enhanced.

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 (10)

1. A hoisting device (90), characterized in that the hoisting device (90) comprises:

a turntable (10);

a boom (20) pivotally connected to the turntable (10);

a first driving part (30), one end of which is pivotally connected with the rotary table (10), and the other end of the first driving part (30) is pivotally connected with the lifting arm (20);

a hoe-assisting assembly (50) connected with the crane arm (20);

a towing assembly (60), the towing assembly (60) being connected to the turntable (10) and the boom (20);

wherein the first driving piece (30) can drive the lifting arm (20) to rotate relative to the rotary table (10), and the hoe-assisted assembly (50) is used for supporting the lifting arm (20).

2. The lifting apparatus (90) of claim 1, wherein the turntable (10) includes a base (12) and a slewing assembly (14) disposed on the base (12), the lift arm (20) being pivotally connected to the slewing assembly (14), the one end of the first drive member (30) being pivotally connected to the slewing assembly (14).

3. The lifting device (90) of claim 2, wherein the hoe-assist assembly (50) comprises:

a telescopic short joint (52) with one end pivotally connected with the crane arm (20);

a hoe (54) connected with the other end of the telescopic short joint (52);

one end of the second driving piece (56) is connected with the telescopic short section (52), and the other end of the second driving piece is connected with the crane arm (20);

the telescopic short section (52) can drive the hoe (54) to stretch along the axial direction of the telescopic short section (52), and the second driving piece (56) can drive the telescopic short section (52) and the hoe (54) to rotate relative to the lifting arm (20).

4. The hoisting device (90) according to claim 3, wherein the telescopic short section (52) comprises a plurality of jointed bars (522) connected in series along a first direction, wherein one jointed bar (522) of any two adjacent jointed bars (522) is telescopic in the first direction relative to the other jointed bar (522); one of the plurality of link levers (522) is pivotally connected to the lift arm (20) and another of the plurality of link levers (522) is connected to the hoe (54).

5. The hoisting device (90) according to claim 3, wherein the first drive member (30) comprises a hydraulic cylinder or a driving cylinder and/or the second drive member (56) comprises a hydraulic cylinder or a driving cylinder.

6. The lifting device (90) according to claim 3, wherein the lifting device (90) further comprises a first support (40), the first support (40) being connected to the lift arm (20), the first drive member (30) and the second drive member (56) being pivotally connected to the lift arm (20) via the first support (40).

7. The lifting device (90) according to claim 3, wherein the lifting device (90) further comprises a second mounting (70), the second mounting (70) being connected to the jib (20), the telescopic short section (52) being pivotally connected to the jib (20) via the second mounting (70).

8. The hoisting device (90) according to claim 2, wherein the towing assembly (60) comprises:

a winch (62) disposed on the slewing assembly (14);

a pulley (64) provided on the boom (20);

and the pulling rope (66) is sleeved on the winch (62) and the pulley (64).

9. The hoisting device (90) of claim 2, wherein the slewing assembly (14) comprises a rotating electrical machine (142) and a rotating bracket (144) connected to the rotating electrical machine (142).

10. A wrecker (100), characterized in that the wrecker (100) comprises a chassis (80) and a hoisting device (90) arranged on the chassis (80), the hoisting device (90) being the hoisting device (90) according to any one of claims 1 to 9.

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