Auxiliary wheel structure of wrecker corbel and wrecker

Abstract

The utility model discloses an auxiliary wheel structure of a wrecker corbel and a wrecker, and belongs to the technical field of wreckers. The auxiliary wheel structure of the wrecker corbel comprises a beam assembly and a corbel wheel set, the beam assembly is used for being connected with a wrecker body framework, the corbel wheel set comprises a mounting frame, two rotating shafts, two tugs and a balance stabilizer bar, the mounting frame is movably mounted on the beam assembly, one end of each rotating shaft is rotatably mounted on the mounting frame around the axis in the vertical direction, and the other end of each rotating shaft is rotatably mounted on the balance stabilizer bar. The towing wheels are rotatably mounted at the other ends of the rotating shafts around the axes of the rotating shafts, swing arms extending in the lateral direction are arranged on the rotating shafts, the two rotating shafts are mounted on the two transverse sides of the mounting frame respectively, the balance stabilizer bar extends in the transverse direction of the mounting frame, and the two ends of the balance stabilizer bar are rotatably connected with the two swing arms respectively. The dragging wheels can be driven to rotate and steer by arranging the rotating shaft, the two dragging wheels can synchronously rotate by arranging the balance stabilizing rod, the driving structure of the dragging wheels is simplified, and the rigidity between the two dragging wheels is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of tow trucks, and in particular relates to an auxiliary wheel structure of a tow truck support arm and a tow truck. Background Art

[0002] The auxiliary wheel structure of the existing pickup truck tow truck support arm generally adopts a fixed auxiliary wheel. The left and right directions of the auxiliary wheel cannot be adjusted. In actual use, it cannot be synchronized with the turning direction of the main vehicle wheel, causing the auxiliary wheel to be subjected to lateral force, which is very easy to blow out, and the wheel and the connection structure of the wheel are easily damaged, thus greatly shortening the service life. In addition, it cannot adapt to complex road conditions and is prone to accidents. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an auxiliary wheel structure of a tow truck support arm and a tow truck, so that the tugboat can rotate to reduce the lateral force, simplify the steering structure, and improve the structural strength of the tugboat.

[0004] In the first aspect, the present application provides an auxiliary wheel structure of a tow truck support arm, comprising a beam assembly and a support arm wheel group, wherein the beam assembly is used to be connected to the body frame of the tow truck, and the support arm wheel group comprises a mounting frame, two rotating shafts, two tugwheels and a balancing stabilizer bar, the mounting frame can be movably mounted on the beam assembly, one end of the rotating shaft can be rotatably mounted on the mounting frame around an axis in the up and down directions, and the tugwheel can be rotatably mounted on the other end of the rotating shaft around the axis of the rotating shaft, a swing arm extending laterally is provided on the rotating shaft, and the two rotating shafts are respectively mounted on both sides of the mounting frame in a lateral direction, the balancing stabilizer bar extends in a lateral direction of the mounting frame, and the two ends of the balancing stabilizer bar are respectively rotatably connected to the two swing arms.

[0005] According to one embodiment of the present application, the mounting frame is provided with a mounting rod extending in the transverse direction, and both ends of the mounting rod are respectively provided with pin shafts extending in the up and down directions. One end of the rotating shaft is provided with a sleeve, and the sleeve is sleeved outside the pin shaft and can be rotatably arranged around the pin shaft.

[0006] According to one embodiment of the present application, the bushing is provided with a limit block, the limit block is arranged on the side of the pin shaft away from the balance stabilizer bar in the longitudinal direction, the swing arm is connected to the bushing, and the limit block limits the rotation angle of the swing arm.

[0007] According to one embodiment of the present application, the beam assembly includes two main beams, a cross beam and two connecting frames, the two main beams extend longitudinally and are spaced apart in the transverse direction, the cross beam extends in the transverse direction, the two ends of the cross beam are respectively fixedly connected to the two main beams, the two connecting frames extend longitudinally, and one end of the connecting frame in the longitudinal direction is fixedly connected to the cross beam, and the other end of the connecting frame in the longitudinal direction is connected to the mounting frame.

[0008] According to one embodiment of the present application, it also includes a support frame, which has an installation cavity that is open on both sides in the horizontal direction, the installation frame is installed in the installation cavity and at least part of the side portion of the installation frame in the horizontal direction extends out of the installation cavity, and the upper surface of the support frame is provided with two first connecting parts corresponding to the two connecting frames, and a first hydraulic telescopic rod is connected between the first connecting part and the connecting frame, and both ends of the first hydraulic telescopic rod are rotatably connected to the first connecting part and the connecting frame respectively.

[0009] According to one embodiment of the present application, a second connecting portion is further provided on the upper surface of the support frame, and extension portions extending laterally out of the mounting cavity are respectively provided on both sides of the mounting frame in the lateral direction, and a third connecting portion is provided on the extension portion, and a second hydraulic telescopic rod is connected between the third connecting portion and the second connecting portion, and both ends of the second hydraulic telescopic rod are rotatably connected to the second connecting portion and the third connecting portion respectively.

[0010] According to one embodiment of the present application, the upper side edge of the connecting frame extends longitudinally, the lower side edge of the connecting frame is arranged in an arc shape and extends downward in a direction away from the cross beam, and the end of the connecting frame away from the cross beam forms a first support part and a second support part corresponding to the upper side edge and the lower side edge respectively, the first hydraulic telescopic rod is rotatably connected to the first support part, and a stabilizing connecting plate is also provided on the supporting frame, and the stabilizing connecting plate is rotatably connected to the second support part at one end away from the supporting frame.

[0011] In a second aspect, the present application provides a tow truck, comprising:

[0012] Body frame;

[0013] As in any one of the auxiliary wheel structures of the tow truck support arm of the first aspect, the beam assembly is connected to the vehicle body frame;

[0014] A supporting arm is movably connected to the mounting frame.

[0015] The beneficial effects of this application include:

[0016] 1. The rotating shaft can drive the tugboat to rotate and turn, reducing the lateral force of the tugboat. The balancing stabilizer bar can make the two tugboats rotate synchronously, simplifying the driving structure of the tugboat, making the steering flexible and noiseless, and convenient for maintenance and replacement. It also improves the rigidity between the two tugboats and the durability of the overall structure.

[0017] 2. By setting the main beam, cross beam and connecting frame, the overall structural rigidity is improved, the connection strength of the arm wheel group is ensured, and the reliability and durability are improved.

[0018] 3. By setting a first hydraulic telescopic rod, the angle between the support frame and the connecting frame can be changed by adjusting the length of the first hydraulic telescopic rod, thereby adjusting the distance between the support arm and the ground; by setting a second hydraulic telescopic rod, the height of the mounting frame can be adjusted, thereby adjusting the distance between the rotating shaft and the tugboat and the ground, ultimately achieving the function of adjusting the tugboat load.

[0019] 4. By arranging the first supporting part and the second supporting part on the connecting frame and arranging the stabilizing connecting plate on the supporting frame, the stability of the overall structure is improved and the durability is improved.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 This is one of the structural schematic diagrams of the auxiliary wheel structure of the tow truck support arm provided in the embodiment of the present application;

[0023] Figure 2 This is the second structural schematic diagram of the auxiliary wheel structure of the tow truck support arm provided in the embodiment of the present application;

[0024] Figure 3 This is one of the structural schematic diagrams of the support arm wheel group provided in the embodiment of the present application.

[0025] Reference numerals:

[0026] Beam assembly 1, main beam 11, cross beam 12, connecting frame 13, first supporting part 14, second supporting part 15, reinforcing beam 16, supporting rod 17;

[0027] The supporting arm wheel group 2, the mounting frame 21, the mounting rod 22, the pin shaft 23, the rotating shaft 24, the shaft sleeve 25, the swing arm 251, the limit block 26, the tugboat 27, the balancing and stabilizing rod 28, and the third connecting part 29;

[0028] Support frame 3, first connection part 31, second connection part 32, first hydraulic telescopic rod 33, second hydraulic telescopic rod 34, stable connection plate 35;

[0029] Support arm 4. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0031] Reference below Figure 1-Figure 3 The auxiliary wheel structure of the tow truck support arm 4 according to the embodiment of the present application is described.

[0032] like Figure 1-Figure 3 As shown, the auxiliary wheel structure of the tow truck support arm 4 includes a beam assembly 1 and a support arm wheel assembly 2. The beam assembly 1 is used to connect with the body frame of the tow truck. It can be understood that the body frame can be a longitudinal beam, a cross beam 12 or a floor of the body. The support arm wheel assembly 2 includes a mounting frame 21, two rotating shafts 24, two tug wheels 27 and a balancing stabilizer bar 28. The mounting frame 21 can be movably mounted on the beam assembly 1 so that the mounting frame 21 can be flexibly moved relative to the beam assembly 1.

[0033] One end of the rotating shaft 24 is rotatably mounted on the mounting frame 21 around the axis in the vertical direction, and the tugboat 27 is rotatably mounted on the other end of the rotating shaft 24 around the axis of the rotating shaft 24. In this embodiment, the rotating shaft 24 extends laterally so that the tugboat 27 can roll and rotate around the rotating shaft 24, and can also rotate around the axis in the vertical direction with the rotating shaft 24. The angle of the tugboat 27 can be adjusted as the tow truck starts and as needed during actual work to reduce lateral force and improve durability.

[0034] The rotating shaft 24 is provided with a swing arm 251 extending laterally, and the two rotating shafts 24 are respectively installed on both sides of the mounting frame 21 in the lateral direction. The balancing and stabilizing bar 28 extends in the lateral direction of the mounting frame 21, and the two ends of the balancing and stabilizing bar 28 are respectively rotatably connected with the two swing arms 251. By providing the balancing and stabilizing bar 28 and the swing arm 251, the two rotating shafts 24 can rotate synchronously, the steering structure is simple and low in cost, and the corresponding driving structure is also relatively simple. In the case of providing an active steering driving structure, the active steering driving structure can drive one tugboat 27 to rotate alone to achieve the synchronous rotation of the two tugboats 27, the steering is flexible, the noise is low, and the maintenance and replacement are convenient. In addition, the balancing and stabilizing bar 28 can also improve the overall structural strength, enhance the rigidity between the two tugboats 27, and improve the durability.

[0035] According to some embodiments of the present application, Figure 2and Figure 3 As shown, the mounting frame 21 is provided with a mounting rod 22 extending in the transverse direction, and the two ends of the mounting rod 22 are respectively provided with a pin shaft 23 extending in the up-down direction, and one end of the rotating shaft 24 is provided with a sleeve 25, and the sleeve 25 is sleeved outside the pin shaft 23 and is rotatably arranged around the pin shaft 23. By setting a structure in which the pin shaft 23 and the sleeve 25 cooperate, the rotating shaft 24 is convenient to rotate around the axis in the up-down direction, thereby driving the tugboat 27 to turn. It should be noted that in another embodiment, the pin shaft 23 can also be set on the rotating shaft 24, and the two ends of the mounting rod 22 are provided with sleeves 25.

[0036] According to some embodiments of the present application, Figure 2 and Figure 3 As shown, the shaft sleeve 25 is provided with a limit block 26, which is provided on the side of the pin shaft 23 away from the balancing stabilizer bar 28 in the longitudinal direction, and the swing arm 251 is connected to the shaft sleeve 25, and the limit block 26 limits the rotation angle of the swing arm 251. By setting the limit block 26 to limit the rotation angle of the swing arm 251, it is prevented that the tugboat 27 is turned randomly and is inconvenient to control, thereby reducing safety hazards and improving controllability.

[0037] According to some embodiments of the present application, Figure 1 and Figure 2 As shown, the beam assembly 1 includes two main beams 11, a cross beam 12 and two connecting frames 13. The two main beams 11 extend in the longitudinal direction and are spaced apart in the transverse direction. The cross beam 12 extends in the transverse direction. Both ends of the cross beam 12 are fixedly connected to the two main beams 11 respectively. The two connecting frames 13 extend in the longitudinal direction, and one end of the connecting frame 13 in the longitudinal direction is fixedly connected to the cross beam 12, and the other end of the connecting frame 13 in the longitudinal direction is connected to the mounting frame 21. By arranging the main beam 11, the cross beam 12 and the connecting frame 13, the overall structural rigidity is improved, the connection strength of the supporting arm wheel group 2 is guaranteed, and the reliability and durability are improved.

[0038] In some embodiments, Figure 1 and Figure 2 As shown, the beam assembly 1 also includes two reinforcing beams 16 , which are respectively connected between the two connecting frames 13 and the two main beams 11 , wherein the reinforcing beams 16 are obliquely supported between the connecting frames 13 and the main beams 11 to improve the structural strength of the connecting frames 13 .

[0039] In some embodiments, Figure 1 and Figure 2 As shown, a support rod 17 is further provided between the two connecting frames 13 . The support rod 17 extends in the transverse direction. Both ends of the support rod 17 are respectively connected to the sides of the two connecting frames 13 close to each other. The structural strength of the connecting frames 13 is improved by providing the support rod 17 .

[0040] According to some embodiments of the present application, Figure 1 and Figure 2 As shown, it also includes a support frame 3, the support frame 3 has an installation cavity with two sides open in the horizontal direction, the mounting frame 21 is installed in the installation cavity and at least part of the side of the mounting frame 21 in the horizontal direction extends out of the installation cavity, and the upper surface of the support frame 3 is provided with two first connecting parts 31 corresponding to the two connecting frames 13, and a first hydraulic telescopic rod 33 is connected between the first connecting part 31 and the connecting frame 13, and the two ends of the first hydraulic telescopic rod 33 are respectively rotatably connected to the first connecting part 31 and the connecting frame 13. It can be understood that there are two first hydraulic telescopic rods 33, which correspond to the first connecting part 31 and the connecting frame 13 respectively. The first hydraulic telescopic rod 33 can be a hydraulic cylinder, which drives the first hydraulic telescopic rod 33 to move and adjust the angle between the support frame 3 and the connecting frame 13 through hydraulic pressure, and then adjusts the distance between the support arm 4 and the mounting frame 21 and the ground. After the tow truck arrives near the rescued vehicle, the trailer wheel group and the support arm 4 can be adjusted according to the direction of the tow truck, and the angle can be adjusted through the first hydraulic telescopic rod 33 to align with the rescued vehicle.

[0041] According to some embodiments of the present application, Figure 1-Figure 3 As shown, the upper surface of the support frame 3 is further provided with a second connection part 32, and the two sides of the mounting frame 21 in the lateral direction are respectively provided with extension parts extending out of the mounting cavity in the lateral direction, and the extension parts are provided with a third connection part 29, and a second hydraulic telescopic rod 34 is connected between the third connection part 29 and the second connection part 32, and the two ends of the second hydraulic telescopic rod 34 are respectively rotatably connected with the second connection part 32 and the third connection part 29. The third connection part 29 is provided on the upper side of the extension part, and the second hydraulic telescopic rod 34 can be a hydraulic cylinder, which drives the second hydraulic rod to telescope by hydraulic drive, and then drives the mounting frame 21 to move in the up and down directions, so as to adjust the distance between the rotating shaft 24 and the tugboat 27 and the ground, and finally achieve the function of adjusting the load of the tugboat 27, thereby improving durability and stability.

[0042] According to some embodiments of the present application, Figure 1 As shown, the upper side edge of the connecting frame 13 extends longitudinally, and the lower side edge of the connecting frame 13 is arranged in an arc shape and extends downward in a direction away from the cross beam 12, so that the connecting frame 13 is arranged in a 7-shaped shape, which is convenient for installation and connection, and has a higher structural strength. The end of the connecting frame 13 away from the cross beam 12 forms a first support part 14 and a second support part 15 corresponding to the upper side edge and the lower side edge respectively, and the first hydraulic telescopic rod 33 is rotatably connected to the first support part 14. A stable connecting plate 35 is also provided on the support frame 3, and the end of the stable connecting plate 35 away from the support frame 3 is rotatably connected to the second support part 15. By providing the stable connecting plate 35, the stability of the overall structure is improved and the durability is improved.

[0043] The present application also provides a tow truck, such as Figure 1 and Figure 2As shown, the tow truck includes a vehicle frame, an auxiliary wheel structure of the tow truck support arm 4 as in any one of the above embodiments, and the support arm 4, the beam assembly 1 is connected to the vehicle frame, and the support arm 4 is movably connected to the mounting frame 21. It can be understood that because the tow truck of the embodiment of the present application includes the auxiliary wheel structure of the tow truck support arm 4 as in any one of the above embodiments, it has the technical features and technical effects of the auxiliary wheel structure of the tow truck support arm 4 as in any one of the above embodiments, which will not be described in detail here.

[0044] According to the tow truck provided in the embodiment of the present application, the tug 27 of the auxiliary wheel structure part of the supporting arm 4 is more flexible in steering, has low noise, is easy to maintain, has higher rigidity and stability, and helps to improve the practicality and stability of the tow truck.

[0045] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0048] In the description of the present application, “plurality” means two or more.

[0049] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0050] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0052] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An auxiliary wheel structure for a tow truck support arm, characterized in that: It includes a beam assembly and a supporting arm wheel group, the beam assembly is used to connect with the body frame of the tow truck, the supporting arm wheel group includes a mounting frame, two rotating shafts, two tugboats and a balancing and stabilizing bar, the mounting frame can be movably mounted on the beam assembly, one end of the rotating shaft can be rotatably mounted on the mounting frame around an axis in the up-down direction, the tugboat can be rotatably mounted on the other end of the rotating shaft around the axis of the rotating shaft, a swing arm extending laterally is provided on the rotating shaft, the two rotating shafts are respectively mounted on both sides of the mounting frame in a lateral direction, the balancing and stabilizing bar extends in a lateral direction of the mounting frame, and the two ends of the balancing and stabilizing bar are respectively rotatably connected with the two swing arms.

2. The auxiliary wheel structure of the tow truck support arm according to claim 1, characterized in that: The mounting frame is provided with a mounting rod extending in the transverse direction, and both ends of the mounting rod are respectively provided with pin shafts extending in the up-down direction. One end of the rotating shaft is provided with a shaft sleeve, and the shaft sleeve is sleeved outside the pin shaft and rotatably arranged around the pin shaft.

3. The auxiliary wheel structure of the tow truck support arm according to claim 2, characterized in that: The shaft sleeve is provided with a limit block, and the limit block is arranged on a side of the pin shaft that is away from the balance stabilizer bar in the longitudinal direction. The swing arm is connected to the shaft sleeve, and the limit block limits the rotation angle of the swing arm.

4. The auxiliary wheel structure of the tow truck support arm according to any one of claims 1 to 3, characterized in that: The beam assembly includes two main beams, a cross beam and two connecting frames. The two main beams extend longitudinally and are spaced apart in the transverse direction. The cross beam extends in the transverse direction. Both ends of the cross beam are fixedly connected to the two main beams respectively. The two connecting frames extend longitudinally, and one end of the connecting frame in the longitudinal direction is fixedly connected to the cross beam, and the other end of the connecting frame in the longitudinal direction is connected to the mounting frame.

5. The auxiliary wheel structure of the tow truck support arm according to claim 4, characterized in that: The invention also includes a support frame, which has an installation cavity with two horizontal sides open, the installation frame is installed in the installation cavity, and at least part of the side of the installation frame in the horizontal direction extends out of the installation cavity, and the upper surface of the support frame is provided with two first connecting parts corresponding to the two connecting frames, and a first hydraulic telescopic rod is connected between the first connecting part and the connecting frame, and the two ends of the first hydraulic telescopic rod are respectively rotatably connected to the first connecting part and the connecting frame.

6. The auxiliary wheel structure of the tow truck support arm according to claim 5, characterized in that: A second connecting portion is also provided on the upper surface of the support frame, and extension portions extending laterally out of the mounting cavity are respectively provided on both sides of the mounting frame in the lateral direction, and a third connecting portion is provided on the extension portion, and a second hydraulic telescopic rod is connected between the third connecting portion and the second connecting portion, and both ends of the second hydraulic telescopic rod are rotatably connected to the second connecting portion and the third connecting portion respectively.

7. The auxiliary wheel structure of the tow truck support arm according to claim 5, characterized in that: The upper side edge of the connecting frame extends longitudinally, the lower side edge of the connecting frame is arranged in an arc shape and extends downward in a direction away from the cross beam, and the end of the connecting frame away from the cross beam forms a first support part and a second support part corresponding to the upper side edge and the lower side edge respectively, the first hydraulic telescopic rod is rotatably connected to the first support part, and a stabilizing connecting plate is also provided on the supporting frame, and the stabilizing connecting plate is rotatably connected to the second support part at one end away from the supporting frame.

8. A tow truck, characterized in that: include: Body frame; The auxiliary wheel structure of the tow truck support arm according to any one of claims 1 to 7, wherein the beam assembly is connected to the vehicle body frame; A supporting arm is movably connected to the mounting frame.

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