Hanging bracket device for loading and unloading draw bar of large-piece transport vehicle

Abstract

The utility model discloses a hanging bracket device for loading and unloading a draw bar of a large-piece transport vehicle, which comprises a base connected with the transport vehicle through bolts. A vertical rod is connected to the upper surface of the base, the top end of the vertical rod is rotationally connected with a slewing mechanism through a bearing, the top end of the slewing mechanism is connected with a U-shaped supporting frame, the supporting frame is connected with an arm rod through a pin shaft, and an electric winch is connected to the upper surface of the arm rod and wound around a fixed pulley at the end of the arm rod through a steel wire rope to be connected with a lifting hook. The device aims to solve the problems of installation, disassembly, loading and unloading of a traction rod of a large transport vehicle on site, the hanging bracket device has the functions of folding, disassembly, carrying and the like, the original vehicle structure is not damaged during installation and use, meanwhile, conversion of structural forms is considered, and other purposes such as spare part hoisting during vehicle repair and maintenance operation can be achieved; and folding storage can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of large-piece transportation, in particular to a hanger device for loading and unloading a drawbar of a large-piece transport vehicle. Background Art

[0002] In the process of transporting large items, a fully hydraulic axle truck is often used to transport heavy equipment. When the transport weight exceeds 300 tons, two tractors and two drawbars are required, and the vehicle is driven in a front-pull and rear-push mode. When the vehicle departs empty and the heavy equipment is unloaded, only one drawbar is needed, and the other drawbar is used to connect the tractor and the vehicle plate for installation or removal at the construction site. Due to site restrictions, a crane cannot often be used. If a drawbar weighing about 0.5 tons and 3-5 meters in length is installed, removed, and loaded manually, 10-12 people are required to work together to complete the installation, removal, and loading. In addition, a movable bracket and wheels are provided on the lower part of the drawbar. The operation is difficult and can easily cause personal injury and equipment damage. Therefore, it is necessary to design a hanger device for loading and unloading the drawbar of a large transport vehicle to solve the above problems. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a hanger device for loading and unloading the drawbar of a large-scale transport vehicle, aiming to solve the problem of installing and disassembling the drawbar at the large-scale transport site. The hanger device has the functions of folding, disassembling, and carrying, and does not damage the original vehicle structure during installation and use. At the same time, considering the conversion of the structural form, it can achieve other uses such as lifting loose parts during vehicle repair and maintenance operations; and can be folded for storage.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a hanger device for loading and unloading the traction rod of a large transport vehicle, including a base, which is connected to the transport vehicle by bolts; a vertical pole is connected to the upper surface of the base, and the top of the vertical pole is rotatably connected to the slewing mechanism through a bearing, and a U-shaped support frame is connected to the top of the slewing mechanism, and the support frame is connected to the arm through a pin shaft, and an electric winch is connected to the upper surface of the arm, and the electric winch is connected to the hook by passing a steel wire rope around the fixed pulley at the end of the arm.

[0005] Preferably, the arm includes a cantilever beam structure, one end of the cantilever beam structure is provided with a first pin hole and a second pin hole; the top of the cantilever beam structure is connected to a mounting seat connected to the electric winch.

[0006] Furthermore, the arm can perform luffing motion according to the actual extreme position requirement of the load; the driving force for the luffing motion is manual.

[0007] Furthermore, an electric winch is used as a lifting mechanism, and a DC electric winch is selected. The electric winch is installed on the mounting seat of the arm, and its wire rope passes through the fixed pulley and limit device on the arm and is connected to the hook to achieve the lifting of heavy objects. The electric winch is driven by the power supply on the hydraulic flatbed truck.

[0008] Preferably, the slewing mechanism is sleeved on the outer surface of the vertical pole and rotates with the vertical pole through a bearing; a locking bolt handle is connected to the outer surface of the slewing mechanism, and the bolt head of the locking bolt handle contacts and cooperates with the internal vertical pole surface for locking.

[0009] Furthermore, the locking bolt handle can effectively prevent the slewing seat and the bearing mounting seat from detaching. During disassembly, the slewing seat and the bearing mounting head can be quickly separated by simply removing the locking screw. It can also simulate the braking effect and lock the slewing seat at any position to prevent the arm from shaking under load.

[0010] Preferably, a plurality of amplitude-adjusting pin holes are provided on one side of the support frame, and a fixed pin hole is provided on the other side; the amplitude-adjusting pin hole is connected to the first pin hole through a pin shaft, and the fixed pin hole is connected to the second pin hole through a pin shaft.

[0011] Preferably, the vertical pole includes a bearing mounting head at the top, two small bearings and two large bearings. The middle structure of the vertical pole is a rod-shaped structure, and a bottom pin hole is provided at the bottom to be plugged into the base.

[0012] Furthermore, the combined use of large and small bearings can not only meet the 360-degree full rotation of the upper slewing seat, but also withstand large torque. During the lifting and rotation process, the upper small bearing only bears radial force, and the bottom large bearing bears radial force and axial force at the same time. The combination of two can not only increase the load-bearing capacity, but also realize rapid disassembly and assembly; a pin hole is set at the bottom of the lower structure, which can realize the manual horizontal tilting of the hanger.

[0013] Preferably, the base is an L-shaped plate structure, and a plurality of bolt holes are provided on the surface of the vertical side of the base, which are connected to the transport vehicle through fastening bolts; a raised stiffening plate is also connected to the surface of the vertical side, and a carrying groove is provided on the surface of the stiffening plate; a pair of pin shaft supports are connected to the surface of the horizontal side of the base, and a socket is provided on the surface of the pin shaft support, which is plugged into the bottom pin hole of the vertical pole through a fixing pin; the end of the fixing pin is connected to a limiting device.

[0014] Furthermore, the base serves as a support for the entire assembly, and the existing bolt holes on the edge of the transport vehicle, i.e., the hydraulic flatbed truck, are used to connect the base to the vehicle plate without damaging the structure of the original vehicle. To ensure that the connecting bolts are not subjected to shear forces, two cylindrical pins are designed at the bottom to cooperate with the bolt holes, which mainly bear the shear forces generated during the lifting process, and the top bolts only bear axial loads. This design can not only realize the rapid installation and disassembly of the base, but also ensure the service life of the bolts.

[0015] Furthermore, the base is designed with two manual handling grooves, which can serve as fulcrums for handling and as reinforcement ribs for the base.

[0016] Furthermore, the fixing pin mainly realizes the connection between the column and the base. A total of two parallel fixed pins are set, which can realize the horizontal tilting of the upper structure of the hanger; an open pin hole is set at one end of the fixing pin, and an M lifting ring screw connection hole is set at the other end as a limiting device; the connecting pin can be quickly disassembled and assembled.

[0017] The utility model has the following technical effects:

[0018] This device has the functions of folding, disassembling, and transporting. It does not damage the original vehicle structure during installation and use. At the same time, considering the conversion of structural forms, it can also be used for other purposes such as lifting loose parts during vehicle repair and maintenance operations. It can be folded for storage, which can solve the problem of cumbersome loading and unloading steps of the tow bar at the transportation site of large items. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a schematic structural diagram of the middle arm of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the rotary mechanism in the utility model;

[0023] Figure 4 This is a structural diagram of the neutral pole of the utility model;

[0024] Figure 5 This is a schematic structural diagram of the base in the present utility model;

[0025] Explanation of the numbers in the figure: arm 1, fixed pulley 11, cantilever beam structure 12, mounting seat 13, first pin hole 141, second pin hole 142, electric winch 2, slewing mechanism 3, support frame 31, amplitude change pin hole 32, locking bolt handle 33, fixing pin hole 34, vertical pole 4, small bearing 41, large bearing 42, rod-shaped structure 43, bottom pin hole 44, bearing mounting head 45, base 5, fixing pin 51, limit device 52, bolt hole 53, conveying groove 54, fastening bolt 55, pin support 56, wire rope 6, hook 7. DETAILED DESCRIPTION

[0026] like Figures 1 to 5As shown, a hanger device for loading and unloading the towing rod of a large transport vehicle includes a base 5, which is connected to the transport vehicle by bolts; a vertical pole 4 is connected to the upper surface of the base 5, and the top of the vertical pole 4 is rotatably connected to the slewing mechanism 3 through a bearing, and a U-shaped support frame 31 is connected to the top of the slewing mechanism 3, and the support frame 31 is connected to the arm 1 through a pin shaft, and an electric winch 2 is connected to the upper surface of the arm 1, and the electric winch 2 is connected to the hook 7 by passing a steel wire rope 6 around the fixed pulley 11 at the end of the arm 1.

[0027] Preferably, the arm 1 includes a cantilever beam structure 12 , one end of which is provided with a first pin hole 141 and a second pin hole 142 ; a mounting seat 13 is connected to the top of the cantilever beam structure 12 and is connected to the electric winch 2 .

[0028] Furthermore, the arm 1 can perform luffing motion according to the actual extreme position requirement of the load; the driving force of the luffing motion is manual.

[0029] Furthermore, an electric winch 2 is used as a lifting mechanism, and a DC electric winch 2 is selected. The electric winch 2 is installed on the mounting seat 13 of the arm 1, and its wire rope 6 passes around the fixed pulley 11 and the limit device 52 on the arm 1 and is connected to the hook 7 to achieve the lifting of heavy objects. The electric winch 2 is driven by the power supply on the hydraulic flatbed truck.

[0030] Preferably, the slewing mechanism 3 is sleeved on the outer surface of the vertical pole 4 and rotates with the vertical pole 4 through a bearing; the outer surface of the slewing mechanism 3 is connected to a locking bolt handle 33, and the bolt head of the locking bolt handle 33 contacts and cooperates with the internal surface of the vertical pole 4 for locking.

[0031] Furthermore, the locking bolt handle 33 can effectively prevent the swivel seat and the bearing mounting seat 13 from detaching. During disassembly, the swivel seat and the bearing mounting head 45 can be quickly separated by removing the locking screw. It can also simulate the braking effect and lock the swivel seat at any position to prevent the arm 1 from shaking under load.

[0032] Preferably, a plurality of amplitude adjustment pin holes 32 are opened on one side of the support frame 31, and a fixing pin 51 hole 34 is opened on the other side; the amplitude adjustment pin hole 32 is connected to the first pin hole 141 through a pin shaft, and the fixing pin 51 hole 34 is connected to the second pin hole 142 through a pin shaft.

[0033] Preferably, the vertical pole 4 includes a bearing mounting head 45 at the top, two small bearings 41 and two large bearings 42 . The middle structure of the vertical pole 4 is a rod-shaped structure 43 , and a bottom pin hole 44 is provided at the bottom to be plugged into the base 5 .

[0034] Furthermore, the combined use of large and small bearings 41 can not only meet the 360-degree full rotation of the upper slewing seat, but also withstand large torque. During the lifting and rotation process, the upper small bearing 41 only bears radial force, and the bottom large bearing 42 bears radial force and axial force at the same time. The combination of two can not only increase the load-bearing capacity, but also realize rapid disassembly and assembly; a pin hole is set at the bottom of the lower structure, which can realize the manual horizontal folding of the hanger.

[0035] Preferably, the base 5 is an L-shaped plate structure, and a plurality of bolt holes 53 are provided on the surface of the vertical side of the base 5, and the bolt holes 53 are connected to the transport vehicle through fastening bolts 55; a raised stiffening plate is also connected to the surface of the vertical side, and a carrying groove 54 is provided on the surface of the stiffening plate; a pair of pin supports 56 are connected to the surface of the horizontal side of the base 5, and a socket is provided on the surface of the pin support 56 to engage with the bottom pin hole 44 of the vertical pole 4 through a fixing pin 51; the end of the fixing pin 51 is connected to a limiting device 52.

[0036] Furthermore, the base 5 serves as a support for the entire assembly, and the existing bolt holes 53 on the edge of the transport vehicle, i.e., the hydraulic flatbed truck, are used to connect the base 5 to the vehicle plate without damaging the structure of the original vehicle. To ensure that the connecting bolts are not subjected to shear forces, two cylindrical pins are designed at the bottom to cooperate with the bolt holes 53, which mainly bear the shear forces generated during the lifting process, and the top bolts only bear axial loads. This design can not only realize the rapid installation and disassembly of the base 5, but also ensure the service life of the bolts.

[0037] Furthermore, the base 5 is designed with two manual transport grooves 54 , which can serve as fulcrums for transport and as reinforcement ribs for the base 5 .

[0038] Furthermore, the fixing pin 51 mainly realizes the connection between the column and the base 5. Two parallel fixed pins 51 are provided to realize the horizontal tilting of the upper structure of the hanger; an open pin hole is provided at one end of the fixing pin 51, and an M lifting ring screw connection hole is provided at the other end as a limiting device 52; the connecting pin can be quickly disassembled and assembled.

[0039] The working principle of this utility model is:

[0040] When in use, the device is fixed to the hydraulic flatbed truck through the base 5, and then the electric winch 2 drives the wire rope 6 for lifting; after use, the device can be disassembled.

[0041] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A hanger device for loading and unloading the drawbar of a large transport vehicle, characterized in that: The utility model comprises a base (5), wherein the base (5) is connected to the transport vehicle by bolts; the upper surface of the base (5) is connected to a vertical pole (4), the top of the vertical pole (4) is rotatably connected to the slewing mechanism (3) through a bearing, the top of the slewing mechanism (3) is connected to a U-shaped support frame (31), the support frame (31) is connected to the arm (1) through a pin shaft, the upper surface of the arm (1) is connected to an electric winch (2), the electric winch (2) is connected to the hook (7) through a steel wire rope (6) passing around a fixed pulley (11) at the end of the arm (1); the slewing mechanism (3) is sleeved on the outer surface of the vertical pole (4) and rotatably cooperates with the vertical pole (4) through a bearing; the outer surface of the slewing mechanism (3) is connected to the vertical pole (4). The surface is connected with a locking bolt handle (33), and the bolt head of the locking bolt handle (33) is in contact with the surface of the internal vertical pole (4) for locking; a plurality of amplitude change pin holes (32) are opened on one side of the support frame (31), and a fixed pin hole (34) is opened on the other side; the vertical pole (4) includes a bearing mounting head (45) at the top, two small bearings (41) and two large bearings (42); the base (5) is an L-shaped plate structure, and a pair of pin shaft supports (56) are connected to the horizontal side surface of the base (5), and the pin shaft supports (56) are provided with a socket on the surface and plugged into the bottom pin hole (44) of the vertical pole (4) through a fixed pin (51).

2. A hanger device for loading and unloading the drawbar of a large transport vehicle according to claim 1, characterized in that: The arm (1) comprises a cantilever beam structure (12), one end of which is provided with a first pin hole (141) and a second pin hole (142); a mounting seat (13) is connected to the top of the cantilever beam structure (12) and is connected to the electric winch (2).

3. The hanger device for loading and unloading the drawbar of a large transport vehicle according to claim 1, characterized in that: The amplitude-changing pin hole (32) is connected to the first pin hole (141) via a pin shaft, and the fixed pin hole (34) is connected to the second pin hole (142) via a pin shaft.

4. The hanger device for loading and unloading the drawbar of a large transport vehicle according to claim 1, characterized in that: The middle structure of the upright pole (4) is a rod-shaped structure (43), and a bottom pin hole (44) is provided at the bottom to be plugged into and matched with the base (5).

5. The hanger device for loading and unloading the drawbar of a large transport vehicle according to claim 4, characterized in that: The base (5) has a plurality of bolt holes (53) on its vertical side surface, and the bolt holes (53) are connected to the transport vehicle via fastening bolts (55); a raised stiffening plate is also connected to the vertical side surface, and a transport groove (54) is provided on the stiffening plate surface; and the end of the fixing pin (51) is connected to a limiting device (52).

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