A special towing device assembly for oversize transport

Abstract

The application discloses a special traction device assembly for large-size transportation, and belongs to the technical field of heavy truck traction, which comprises a traction seat and two vehicle frame longitudinal beams, the front ends of the two vehicle frame longitudinal beams are connected with combined supports, front traction cross beams are connected between the two combined supports, connecting shafts are connected to the two sides of the front traction cross beams; the combined supports are connected with connecting plates; the upper sides of the traction seat are connected with the two connecting shafts through draw pins, and the lower sides of the traction seat are connected with the two connecting plates through positioning pins; a mounting seat is connected to the front side of the traction seat, and a traction pin is mounted on the mounting seat. The traction seat is connected with the front traction cross beam assembly and the front lower protection assembly through pin shaft connection, the structure is simple, the connection is convenient, and the strength is reliable; and the draw pin is detachable, when the draw pin is detached, the traction seat can be forwardly overturned through the positioning pin as a fulcrum, and the whole vehicle can be assembled with a bumper and other parts can be maintained and replaced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of heavy truck traction, and particularly relates to a special traction device assembly for large piece transportation. BACKGROUND

[0002] The large piece transportation tractor is a vehicle specially used for transporting heavy, super-long or super-high goods, and its design and functions are significantly different from those of the ordinary goods transportation tractor. The large piece transportation tractor is usually equipped with a high-power engine to ensure sufficient traction and power output; in order to realize smooth starting and provide sufficient starting torque, the large piece transportation tractor is generally equipped with a hydraulic torque converter, which can protect the whole vehicle transmission system from the impact of instantaneous excessive torque; the large piece transportation tractor needs to have super-strong load-carrying capacity, and usually adopts high-strength frame steel plate material, and the longitudinal beam is integrally bent and formed to form a three-layer beam structure; the large piece transportation tractor is usually equipped with a heavy-duty drive axle, and the appropriate speed ratio can be selected according to the road conditions and the carrying tonnage to optimize the performance; the high-end large piece transportation tractor also focuses on the design of the cab to improve the comfort and safety of the driver.

[0003] The total weight of the large piece transportation tractor can reach more than 200 tons, and the transportation working conditions are relatively poor. In particular, when climbing under heavy load, other vehicles are usually required to be connected in series with the transportation vehicle for traction, at which time the large piece transportation vehicle needs to be equipped with a special traction device at the front end. The special traction device for large piece transportation has the characteristics of large size, large weight and strong structure, but the device is not convenient to install during the assembly of the whole vehicle, and affects the assembly of other parts of the whole vehicle, such as the bumper and the front lower protection. SUMMARY

[0004] In order to solve the problems of the large size, large weight and strong structure of the special traction device for large piece transportation, the installation of the special traction device for large piece transportation is not convenient during the assembly of the whole vehicle, and affects the assembly of other parts of the whole vehicle, the present application provides a special traction device assembly for large piece transportation, which meets the strength requirements of the large piece transportation series traction, and improves the assembly convenience of the traction device and the whole vehicle adaptability.

[0005] The present application is realized by the following technical solutions:

[0006] A special traction device assembly for large piece transportation, comprising a traction seat and two vehicle frame longitudinal beams, the front ends of the two vehicle frame longitudinal beams are respectively connected and installed with a combined support, a front traction cross beam is connected between the two combined supports, and connecting shafts are respectively connected and installed on the left and right sides of the front traction cross beam; connecting plates are respectively connected and installed on the lower sides of the two combined supports, and a front lower protection assembly is connected and installed between the two connecting plates; the upper and lower left and right sides of the traction seat are respectively connected and installed with the two connecting shafts through draw pins, and the upper and lower left and right sides of the traction seat are respectively connected and installed with the two connecting plates through positioning pins; an installation seat is connected and installed on the front side of the traction seat, and a traction pin is installed on the installation seat.

[0007] The further improvement of the present application is that the front traction crossbeam lower part is welded with the traction sleeve connected and installed on the left and right sides of the connecting shaft.

[0008] The further improvement of the present application is that the connecting shaft is inserted and matched with the traction sleeve, the front end of the traction sleeve is provided with the connecting shaft limiting slot for positioning and clamping the connecting shaft, and the connecting shaft is rotatably installed with the positioning nut abutting against the rear end of the traction sleeve.

[0009] The further improvement of the present application is that the positioning nut is a slotted nut, and the connecting shaft is provided with the connecting shaft limiting pin clamping the slot of the slotted nut.

[0010] The further improvement of the present application is that the traction seat is connected and installed with the limiting block capable of pressing and limiting the draw pin on the left and right sides, and the connecting plate is connected and installed with the limiting block capable of pressing and limiting the positioning pin.

[0011] The further improvement of the present application is that the limiting block is in a stepped structure, and the stepped position is matched with the pressing and installation of the positioning pin or the draw pin.

[0012] The further improvement of the present application is that the head part of the positioning pin and the draw pin is provided with the limiting plane abutting against the limiting block.

[0013] The further improvement of the present application is that the head part of the draw pin is provided with the pull ring.

[0014] The further improvement of the present application is that the inner side of the connecting plate is connected and installed with the limiting seat capable of limiting the traction seat from turning over.

[0015] The further improvement of the present application is that the connecting plate is further provided with the bolt rotatably installed with the traction seat.

[0016] From the above technical solutions, the beneficial effects of the present application are:

[0017] The traction seat is connected with the front traction crossbeam assembly (connecting shaft) and the front lower protection assembly (connecting plate) through the pin shaft (positioning pin and draw pin) connection mode, which is simple in structure, convenient in connection and reliable in strength; and the draw pin is detachable, when the draw pin is detached, the positioning pin is used as the fulcrum to realize the forward turning over of the traction seat (mounting seat and traction pin), and the turning over of the traction seat is convenient for the assembly of the bumper and the maintenance and replacement of other parts. The device can not only be used as the rear vehicle to be pulled forward by the front vehicle (with the help of the traction rope), but also be used as the rear vehicle to push the front vehicle forward (with the help of the traction rod), that is, two purposes of forward pushing and rear pulling are realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present application, the drawings required to be used in the description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0019] Figure 1 It is a structural schematic diagram of the embodiment of the present application.

[0020] Figure 2 It is a positioning nut mounting structure schematic diagram of the embodiment of the present application.

[0021] Figure 3 It is an explosion schematic diagram of the embodiment of the present application.

[0022] Figure 4 It is a towing seat overturning schematic diagram of the embodiment of the present application.

[0023] Figure 5 It is a towing seat overturning limiting schematic diagram of the embodiment of the present application.

[0024] Figure 6 It is a pull pin mounting structure schematic diagram of the embodiment of the present application.

[0025] Figure 7 It is a limiting block and positioning pin cooperation schematic diagram of the embodiment of the present application.

[0026] Figure 8 It is a connecting shaft and positioning nut mounting schematic diagram of the embodiment of the present application.

[0027] Figure 9 It is a connecting shaft and towing sleeve mounting schematic diagram of the embodiment of the present application.

[0028] In the drawings: 1, frame longitudinal beam, 2, combined support, 3, front towing cross beam, 4, front lower protection assembly, 5, towing seat, 6, positioning pin, 7, pull pin, 71, pull ring, 8, limiting block, 9, mounting seat, 10, towing pin, 11, connecting shaft, 12, positioning nut, 13, towing sleeve, 14, connecting shaft limiting pin, 15, connecting shaft limiting groove, 16, connecting plate, 17, limiting seat. EMBODIMENT

[0029] In order to make the purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the present application will be clearly and completely described below in combination with the drawings in the specific embodiments. Obviously, the following described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present patent, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present patent.

[0030] As shown in Figures 1-9 The present application discloses a special traction device assembly for large piece transportation, which comprises a traction seat 5 and two vehicle frame longitudinal beams 1. The front ends of the two vehicle frame longitudinal beams 1 are respectively connected with combined supports 2 provided with castings. A front traction cross beam 3 is connected between the two combined supports 2. Connecting shafts 11 are respectively connected and installed on the left and right sides of the front traction cross beam 3. Connecting plates 16 are respectively connected and installed on the lower sides of the two combined supports 2. A front lower protection assembly 4 is connected and installed between the two connecting plates 16 (middle part). The upper left and right sides of the traction seat 5 are connected and installed with the two connecting shafts 11 through draw pins 7. The lower left and right sides of the traction seat 5 are connected and installed with the two connecting plates 16 (front side) through positioning pins 6. An installation seat 9 is connected and installed on the front side of the traction seat 5. A traction pin 10 is installed on the installation seat 9.

[0031] The traction seat 5 is connected with the front traction cross beam assembly (connecting shaft 11) and the front lower protection assembly 4 (connecting plate 16) through pin shaft (positioning pin 6 and draw pin 7) connection mode, which has simple structure, convenient connection and reliable strength. The draw pin 7 is detachable. When the draw pin 7 is detached, the traction seat 5 (installation seat 9, traction pin 10) can be forwardly overturned through the positioning pin 6 as a fulcrum. After the traction seat 5 is overturned, it is convenient to assemble the bumper and replace other parts. The device can not only be used as a rear vehicle to be pulled forward by a front vehicle (with the help of a traction cable), but also be used as a rear vehicle to push a front vehicle forward (with the help of a traction rod), that is, to realize two purposes of forward pushing and rear pulling.

[0032] As shown in Figures 8-9 The lower left and right sides of the front traction cross beam 3 are welded with traction sleeves 13 connected and installed with the connecting shafts 11. The connecting shaft 11 is inserted and assembled with the traction sleeve 13. The front end of the traction sleeve 13 is provided with a connecting shaft limiting groove 15 for positioning and clamping the connecting shaft 11. The connecting shaft 11 is rotatably installed with a positioning nut 12 abutting against the rear end of the traction sleeve 13. When the connecting shaft 11 is installed, it is inserted and assembled into the traction sleeve 13 from front to back, and is clamped and limited by the connecting shaft limiting groove 15 at the front end of the traction sleeve 13, so as to realize the accuracy of the front end pin hole position of the connecting shaft 11, and ensure the accuracy of the insertion and assembly of the draw pin 7. The connecting shaft 11 is rotatably installed with the positioning nut 12, which is tightly fixed, so as to realize the convenient installation of the connecting shaft 11, and facilitate the disassembly, maintenance and replacement of the connecting shaft 11.

[0033] Further, asFigure 8 As shown, the positioning nut 12 is a slotted nut, that is, a plurality of limiting grooves are formed on the rear end face of the positioning nut 12, and the connecting shaft limiting pin 14 is transversely arranged on the connecting shaft 11 and engaged with the limiting grooves of the slotted nut. The relative rotation between the positioning nut 12 and the connecting shaft 11 is effectively prevented, and the reliability of the fastening of the positioning nut 12 to the connecting shaft 11 is achieved.

[0034] The limiting block 8 capable of pressing and limiting the pull pin 7 is connected and installed on the left and right sides of the traction seat 5; the limiting block 8 capable of pressing and limiting the positioning pin 6 is connected and installed on the connecting plate 16. The connecting shaft 11 is arranged on the inner side of the traction seat 5, and the connecting plate 16 is arranged on the outer side of the traction seat 5, so that the rationality of the structure arrangement is achieved; the pressing and limiting of the positioning pin 6 and the pull pin 7 is achieved by the limiting block 8. The limiting block 8 is screwed with the traction seat 5 by bolts, the pressing and limiting of the pull pin 7 is achieved, the pull pin 7 is prevented from being pulled out, and the reliability of the connection between the upper part of the traction seat 5 and the connecting shaft 11 is ensured; the limiting block 8 is screwed with the connecting plate 16 by bolts, the pressing and limiting of the positioning pin 6 is achieved, the positioning pin 6 is prevented from being pulled out, and the reliability of the connection between the lower part of the traction seat 5 and the connecting plate 16 is ensured.

[0035] Further, the limiting block 8 has a stepped structure, and the stepped position is pressed and matched with the positioning pin 6 or the pull pin 7. The reliability of the pressing and limiting of the limiting block 8 to the positioning pin 6 and the pull pin 7 is achieved.

[0036] Further, the head part of the positioning pin 6 and the pull pin 7 is provided with a limiting plane abutting against the limiting block 8 (stepped surface). The limiting block 8 not only achieves the axial pressing and limiting of the positioning pin 6 and the pull pin 7, but also achieves the circumferential rotation limiting of the pull pin 7 and the positioning pin 6.

[0037] The head part of the pull pin 7 is provided with a pull ring 71. The convenient disassembly and assembly of the pull pin 7 is achieved, and the turnover operation of the traction seat 5 is facilitated.

[0038] The inner side of the connecting plate 16 is connected and installed with the limiting seat 17 capable of limiting the turnover of the traction seat 5. When the traction seat 5 is turned forward, the turnover of the traction seat 5 by 50° is achieved by the limiting seat 17, and the effective supporting and limiting of the turnover of the traction seat 5 is achieved.

[0039] The connecting plate 16 is further provided with the bolt screwed with the traction seat 5. The reliability of the connection and installation of the traction seat 5 is achieved, and when the traction seat 5 needs to be turned over, the bolt connecting the traction seat 5 and the connecting plate 16 can be removed.

[0040] The traction seat 5 is a special traction device for large piece transportation, which is a left-right symmetrical steel plate welded part, 16 bolt holes are formed on the front plate surface, and the inner side is welded with nuts for connecting and installing the mounting seat 9. The mounting seat 9 is a left-right symmetrical steel plate welded part, which comprises a bottom plate, two side plates and three horizontal pin hole plates, and is connected with the front plate (nut) of the traction seat 5 through 16 bolts. The traction pin 10 and the mounting seat 9 are used in combination, the traction pin 10 is inserted into the pin hole of the mounting seat 9, the traction pin 10 is made of 40Cr and has a diameter of 85mm, which can meet the strength requirement of the large piece transportation when a plurality of vehicles are connected in series.

[0041] The special traction device assembly for large piece transportation connects the traction seat 5 with the front traction cross beam assembly (connecting shaft 11) and the front lower protection assembly 4 (connecting plate 16) through the pin shaft (positioning pin 6 and pull pin 7) connection mode, which has simple structure, convenient connection and reliable strength; and the pull pin 7 is detachable, when the pull pin 7 is detached, the traction seat 5 (mounting seat 9, traction pin 10) can be forwardly overturned through the positioning pin 6 as a fulcrum, and the traction seat 5 can be convenient for whole vehicle assembly bumper and maintenance and replacement of other parts. The device can not only be used as a rear vehicle to be pulled forward by a front vehicle (with the help of a traction cable), but also be used as a rear vehicle to push a front vehicle forward (with the help of a traction rod), that is, two purposes of forward pushing and rear pulling are realized.

[0042] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between the embodiments can be referred to each other.

[0043] In the specification and claims of the present application and the above-described drawings, the terms "upper", "lower", "outer side", "inner side" and the like, if any, are used to distinguish the relative relationship in position, and do not have to be given a nature. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heavy haulage specific traction device assembly characterized in that, The utility model relates to a kind of trailer frame, including tow seat (5) and two frame longitudinal beams (1), two frame longitudinal beams (1) front end are respectively connected and installed with combined support (2), two combined supports (2) are connected with front tow crossbeam (3) between, front tow crossbeam (3) left and right sides are respectively connected and installed with connecting shaft (11);Two combined supports (2) lower side are respectively connected and installed with connecting plate (16), two connecting plates (16) are connected and installed with front lower guard assembly (4) between;Tow seat (5) upper left and right sides are respectively connected and installed with two connecting shafts (11) by draw pin (7), tow seat (5) lower left and right sides are respectively connected and installed with two connecting plates (16) by positioning pin (6);Tow seat (5) front side is connected and installed with mounting seat (9), and mounting seat (9) is installed with tow pin (10);Tow seat (5) left and right sides are connected and installed with the limiting block (8) that can be to draw pin (7) press mounting limit;Connecting plate (16) is connected and installed with the limiting block (8) that can be to positioning pin (6) press mounting limit, limiting block (8) is in ladder structure, and its ladder position is with positioning pin (6) or draw pin (7) press mounting cooperation, draw pin (7) head is equipped with pull ring (71), and draw pin (7) can be detached, when draw pin (7) is detached, by positioning pin (6) as fulcrum, realize the forward overturning of tow seat (5), and connecting plate (16) inner side is connected and installed with the limiting seat (17) that can be to tow seat (5) overturn limit.

2. The heavy equipment transport specific traction device assembly of claim 1, wherein, Front tow crossbeam (3) lower left and right sides are welded with the tow sleeve (13) that is connected and installed to connecting shaft (11).

3. The heavy equipment transport specific traction device assembly of claim 2, wherein, Connecting shaft (11) is inserted with tow sleeve (13) and cooperates, and the front end of tow sleeve (13) is provided with connecting shaft limiting slot (15) with connecting shaft (11) positioning clamping;Connecting shaft (11) is rotated with the positioning nut (12) that is abutted with the rear end of tow sleeve (13).

4. The special purpose towing vehicle assembly of claim 3, wherein, Positioning nut (12) is slotted nut, and connecting shaft (11) is provided with connecting shaft limiting pin (14) with the notch of slotted nut clamping.

5. The heavy equipment transport specific traction device assembly of claim 1, wherein, Positioning pin (6) and draw pin (7) head side are provided with limiting plane with limiting block (8) abutment.

6. The heavy equipment transport specific traction device assembly of claim 1, wherein, Connecting plate (16) is further provided with bolt with tow seat (5) screw joint installation.

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