CN211592550U - Piggyback transport vehicle - Google Patents

Abstract

The utility model provides a piggyback transport vehicle. The piggyback transport vehicle comprises: an end chassis; the rotating shaft fixing device comprises a fixing seat and a fixing clamping sleeve, the fixing seat is fixedly connected with the end underframe, the fixing seat is provided with a first groove, the fixing clamping sleeve is provided with a second groove, and the fixing clamping sleeve is arranged on the fixing seat and enables the second groove to be in butt joint with the first groove to form a mounting hole; the rotating shaft penetrates through the mounting hole; and the movable sliding table is fixedly connected with the rotating shaft, so that the movable sliding table is pivotally connected with the end underframe through the rotating shaft. The technical scheme of the utility model the removal slip table of having solved among the prior art piggyback transport vechicle reliably stably with the problem of tip chassis pivot ground connection.

Description

Piggyback transport vehicle

Technical Field

The utility model relates to a transportation equipment technical field particularly, relates to a piggyback transport vechicle.

Background

Piggyback transportation is a transportation mode used for road truck or semitrailer road-rail combined transportation.

In the related technology, the piggyback transport vehicle comprises an end underframe, a movable sliding table and a concave underframe, wherein the movable sliding table needs to be controlled to be unfolded relative to the end underframe in order to facilitate the sinking and sinking of the underframe on a highway truck or a semi-trailer, and then the concave underframe is controlled to move out along the end underframe and the movable sliding table by taking a bogie center plate as a rotation center to finish the actions of lifting and the like so as to provide the sinking and sinking of the underframe on the highway truck or the semi-trailer.

Therefore, the structure of the piggyback transport vehicle needs to be optimized to ensure that the movable sliding table can be reliably and stably connected with the end underframe in a pivoting manner, so that the movable sliding table can be smoothly unfolded relative to the end underframe by driving the movable sliding table to rotate.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a piggyback transport vehicle to solve the problem of how to reliably and stably connect the movable sliding table of the piggyback transport vehicle with the pivoting connection of the end chassis in the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a piggyback transport vehicle comprising: an end chassis; the rotating shaft fixing device comprises a fixing seat and a fixing clamping sleeve, the fixing seat is fixedly connected with the end underframe, the fixing seat is provided with a first groove, the fixing clamping sleeve is provided with a second groove, and the fixing clamping sleeve is arranged on the fixing seat and enables the second groove to be in butt joint with the first groove to form a mounting hole; the rotating shaft penetrates through the mounting hole; and the movable sliding table is fixedly connected with the rotating shaft, so that the movable sliding table is pivotally connected with the end underframe through the rotating shaft.

Furthermore, the fixed seat is provided with a first mounting surface, and a first groove is formed in the first mounting surface; the fixed clamping sleeve is provided with a second mounting surface, and a second groove is formed in the second mounting surface; when the fixed cutting sleeve is installed on the fixed seat, the second installation surface is attached to the first installation surface, and the second groove is in butt joint with the first groove.

Furthermore, the rotating shaft fixing device also comprises a clamping protrusion, the clamping protrusion is arranged on the first mounting surface, and a clamping groove matched with the clamping protrusion is formed in the second mounting surface; when the fixed cutting sleeve is arranged on the fixed seat, at least part of the clamping bulge extends into the clamping groove; the clamping protrusion and the clamping groove are clamped and matched to radially limit the fixed seat and the fixed clamping sleeve; or the rotating shaft fixing device also comprises a clamping bulge which is arranged on the second mounting surface; the first mounting surface is also provided with a clamping groove matched with the clamping bulge; when the fixed cutting sleeve is arranged on the fixed seat, at least part of the clamping bulge extends into the clamping groove; the clamping protrusion and the clamping groove are clamped and matched to radially limit the fixed base and the fixed clamping sleeve.

Furthermore, the fixed seat is provided with a first mounting surface extending along the vertical direction, the first mounting surface is provided with a first groove, and the first groove penetrates through the upper end surface of the fixed seat and the lower end surface of the fixed seat; the fixed clamping sleeve is provided with a second mounting surface extending along the vertical direction, a second groove is formed in the second mounting surface, and the second groove penetrates through the upper end face of the fixed seat and the lower end face of the fixed seat; the pivot extends along vertical direction, removes the bottom fixed connection of slip table and pivot, removes the slip table and rotates for the tip chassis along the horizontal direction.

Further, the movable sliding platform is movably arranged along the vertical direction, and the piggyback transport vehicle further comprises: the stopping structure is connected with the movable sliding table and is provided with a stopping surface which is in stopping fit with the upper end surface of the fixed seat; in the vertical direction, the top end of the rotating shaft is higher than the stop surface so as to prevent the rotating shaft from being separated from the mounting hole.

Furthermore, the first mounting surface is also provided with a first connecting hole which is arranged at an interval with the first groove, and the second mounting surface is also provided with a second connecting hole which is arranged at an interval with the second groove; the rotating shaft fixing device further comprises a bolt and a nut, and the bolt penetrates through the second connecting hole and the first connecting hole and then is in threaded connection with the nut, so that the fixing clamping sleeve is installed on the fixing seat.

Furthermore, the fixing seat is arranged in a T shape and comprises a fixing seat body and two first connecting bosses which are arranged on two sides of the fixing seat body respectively, the first connecting holes are multiple, at least one first connecting hole is formed in each of the two first connecting bosses, and the end faces of the two first connecting bosses are flush with the end face of the fixing seat body to form a first mounting face; the fixed cutting ferrule is the setting of T type, and fixed cutting ferrule includes fixed cutting ferrule body and sets up two second connection bosss in fixed cutting ferrule body both sides respectively, and the second connecting hole is a plurality of, has all seted up at least one second connecting hole on two second connection bosss, and the terminal surface of two second connection bosss forms the second installation face with the terminal surface parallel and level of fixed cutting ferrule body.

Furthermore, the rotating shaft fixing device also comprises a slide bearing, the slide bearing is arranged at the mounting hole, and the rotating shaft penetrates through the bearing hole of the slide bearing.

Further, the slide bearing is split slide bearing, and split slide bearing includes: the first bearing lobe is arranged at the first groove; and the second bearing valve is arranged at the second groove, and when the fixing clamping sleeve is arranged on the fixing seat, the second bearing valve is butted with the first bearing valve to form a bearing hole.

Furthermore, the first bearing lobe comprises a first bearing body and a first limiting boss, and the two axial ends of the peripheral surface of the first bearing body are respectively provided with the first limiting boss; the fixed seat is positioned between the two first limiting bosses so as to axially limit the first bearing flaps and the fixed seat; the second bearing lobe comprises a second bearing body and second limiting bosses, and the two axial ends of the outer peripheral surface of the second bearing body are respectively provided with one second limiting boss; the fixed cutting sleeve is positioned between the two second limit bosses so as to axially limit the second bearing valve and the fixed cutting sleeve.

Use the technical scheme of the utility model, set up a simple structure, convenient assembling's pivot fixing device for the pivot provides rotatory support, remove the slip table through control and revolute the axle and rotate for the tip chassis, make and remove the slip table reliably and stably switch between the state of launching and withdrawing.

In addition, in the technical scheme of this application, set up the pivot fixing device split into fixing base and fixed cutting ferrule, can make things convenient for the installation of pivot. Particularly, can install the pivot in the first groove of fixing base earlier, then install fixed cutting ferrule on the fixing base, the second recess of fixed cutting ferrule and first recess butt joint form with the mounting hole of pivot looks adaptation to can avoid the pivot longer and installation space is limited to lead to the pivot to wear to establish mounting hole department smoothly.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows an assembly structure schematic diagram of a piggyback transport car according to an alternative embodiment of the present invention;

fig. 2 is a schematic structural view showing a rotating shaft fixing device of the piggyback transport car of fig. 1;

FIG. 3 is a schematic structural view of a fixing base and a clamping protrusion of the rotating shaft fixing device in FIG. 2;

FIG. 4 shows a schematic view of a first bearing lobe of the slideway bearing of the spindle fixing arrangement of FIG. 2;

fig. 5 shows a schematic view of the first bearing lobe of fig. 4 mounted on the holder of fig. 3;

FIG. 6 is a schematic structural view of a fixing ferrule of the rotating shaft fixing device in FIG. 2;

FIG. 7 shows a schematic view of a second bearing lobe of the slideway bearing of the spindle fixing arrangement of FIG. 2;

fig. 8 shows a schematic view of the second bearing lobe of fig. 7 mounted on the retaining ferrule of fig. 6.

Wherein the figures include the following reference numerals:

1. an end chassis; 2. a rotating shaft fixing device; 10. a fixed seat; 100. a fixed seat body; 200. a first connecting boss; 101. a first mounting surface; 11. a first groove; 12. a first connection hole; 20. fixing the clamping sleeve; 300. fixing the ferrule body; 400. a second connecting boss; 201. a second mounting surface; 21. a second groove; 22. a clamping groove; 23. a second connection hole; 30. clamping the bulges; 40. a bolt; 50. a nut; 60. a slideway bearing; 601. a bearing bore; 61. a first bearing lobe; 611. a first bearing body; 612. a first limit boss; 62. a second bearing lobe; 621. a second bearing body; 622. a second limit boss; 70. a gasket; 3. a rotating shaft; 4. moving the sliding table; 5. a stop structure; 501. a stop surface; 6. a concave bottom frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In order to solve the problem that how the movable sliding table of the piggyback transport vehicle in the prior art can be reliably and stably connected with the end underframe in a pivoting way, the utility model provides a piggyback transport vehicle.

As shown in fig. 1, the piggyback transport vehicle includes an end chassis 1, a rotating shaft fixing device 2, a rotating shaft 3 and a movable sliding table 4, the rotating shaft fixing device 2 includes a fixing seat 10 and a fixing clamping sleeve 20, the fixing seat 10 is fixedly connected with the end chassis 1, the fixing seat 10 has a first groove 11, the fixing clamping sleeve 20 has a second groove 21, the fixing clamping sleeve 20 is installed on the fixing seat 10 and enables the second groove 21 to be in butt joint with the first groove 11 to form a mounting hole, the rotating shaft 3 is arranged at the mounting hole in a penetrating manner, the movable sliding table 4 is fixedly connected with the rotating shaft 3, so that the movable sliding table 4 is pivotally connected with the end chassis 1 through the rotating.

In the embodiment of the application, a rotating shaft fixing device 2 with simple structure and convenient assembly is provided for providing rotating support for a rotating shaft 3, and the movable sliding table 4 can be reliably and stably switched between the unfolding state and the folding state by controlling the movable sliding table 4 to rotate around the rotating shaft 3 relative to the end chassis 1.

In addition, in the technical scheme of this application, set up 2 splits of pivot fixing device into fixing base 10 and fixed cutting ferrule 20, can make things convenient for the installation of pivot 3. Particularly, can install pivot 3 in the first recess 11 department of fixing base 10 earlier, then install fixed cutting ferrule 20 on fixing base 10, the second recess 21 and the first recess 11 butt joint of fixed cutting ferrule 20 form with the mounting hole of 3 looks adaptations of pivot to can avoid pivot 3 longer and installation space is limited to lead to pivot 3 to wear to establish mounting hole department smoothly.

In the process of installing the rotating shaft 3, if the installation space is sufficient, the fixing clamp sleeve 20 can be installed on the fixing seat 10 to form an installation hole matched with the rotating shaft 3, and then the rotating shaft 3 is arranged at the installation hole in a penetrating manner.

Optionally, the fixing seat 10 is welded with the end underframe 1; the movable sliding table 4 is welded with the bottom end of the rotating shaft 3.

As shown in fig. 1, the fixing base 10 has a first mounting surface 101 extending in a vertical direction, a first groove 11 is formed in the first mounting surface 101, and the first groove 11 penetrates through an upper end surface of the fixing base 10 and a lower end surface of the fixing base 10; the fixing clamping sleeve 20 is provided with a second mounting surface 201 extending along the vertical direction, a second groove 21 is formed in the second mounting surface 201, and the second groove 21 penetrates through the upper end surface of the fixing seat 10 and the lower end surface of the fixing seat 10; the pivot 3 extends along vertical direction, removes the bottom fixed connection of slip table 4 and pivot 3, removes slip table 4 and rotates for tip chassis 1 along the horizontal direction.

Alternatively, the movable sliding table 4 is driven by a driving device such as an air cylinder or an oil cylinder to rotate around the rotating shaft 3 relative to the end chassis 1, so that the movable sliding table 4 is switched between an unfolding state and a folding state, when the movable sliding table 4 is in the unfolding state, the movable sliding table 4 and the end chassis 1 form a complete slideway for the concave chassis 6 to move out, and when the movable sliding table 4 is in the folding state, the movable sliding table 4 is positioned below the end chassis 1. As shown in fig. 1, the moving slide table 4 is in a retracted state.

As shown in fig. 1, the movable sliding table 4 is movably arranged along the vertical direction, the piggyback transport vehicle further comprises a stopping structure 5, the stopping structure 5 is connected with the movable sliding table 4, and the stopping structure 5 is provided with a stopping surface 501 which is matched with the upper end surface of the fixed seat 10 in a stopping way; in the vertical direction, the top end of the rotating shaft 3 is higher than the stop surface 501 to prevent the rotating shaft 3 from being pulled out from the mounting hole.

Optionally, the piggyback transport vehicle further includes a locking mechanism cooperating with the movable sliding table 4, when the movable sliding table 4 has a locking position and an unlocking position along a vertical direction from top to bottom, when the movable sliding table 4 is located at the locking position, the movable sliding table 4 cannot rotate relative to the end chassis 1, when the movable sliding table 4 is located at the unlocking position, the movable sliding table 4 can rotate relative to the end chassis 1, when the movable sliding table 4 is driven to move downwards, the stop surface 501 of the stop structure 5 in an extreme state can abut against the upper end surface of the fixing seat 10, thereby preventing the rotating shaft 3 from coming out of the mounting hole, and causing the movable sliding table 4 to rotate relative to the end chassis 1 without reliably and stably rotating the shaft.

As shown in fig. 3, the fixing base 10 has a first mounting surface 101, and the first mounting surface 101 has a first groove 11 formed therein. As shown in fig. 6, the fixing clip 20 has a second mounting surface 201, and a second groove 21 is opened on the second mounting surface 201. As shown in fig. 2, when the fixing clip 20 is mounted on the fixing base 10, the second mounting surface 201 is engaged with the first mounting surface 101 and the second groove 21 is engaged with the first groove 11.

When installing fixed cutting ferrule 20 on fixing base 10, fixing base 10 and fixed cutting ferrule 20 take place relative drunkenness along the binding face easily, lead to first recess 11 and the unable butt joint well of second recess 21 to lead to the unable installation of pivot 3. In order to solve the technical problem, as shown in fig. 3, the rotating shaft fixing device 2 further includes a clamping protrusion 30, the clamping protrusion 30 is disposed on the first mounting surface 101, and a clamping groove 22 adapted to the clamping protrusion 30 is further formed on the second mounting surface 201; when the fixing clip sleeve 20 is installed on the fixing base 10, at least part of the clipping bulge 30 extends into the clipping groove 22; the clamping protrusion 30 and the clamping groove 22 are in clamping fit to radially limit the fixed seat 10 and the fixed cutting sleeve 20. Like this, utilize the joint cooperation of joint arch 30 and joint groove 22 to prevent fixing base 10 and fixed cutting ferrule 20 to take place relative drunkenness along the binding face, still be favorable to promoting assembly efficiency simultaneously, make things convenient for the butt joint of first recess 11 and second recess 21.

Alternatively, the catching protrusion 30 is integrally formed with the holder 10.

Optionally, the clamping protrusion and the clamping groove are both multiple. In the alternative embodiment shown in fig. 3, two latching projections 30 are respectively disposed on two radial sides of the first groove 11, and the opposite end surfaces of the two latching projections 30 are in smooth transition with the groove wall surface of the first groove 11. As shown in fig. 6, two catching grooves 22 are respectively provided at both sides of the second groove 21 in the radial direction, and both the catching grooves 22 communicate with the second groove 21.

In an alternative embodiment of the present application, which is not shown in the drawings, the rotating shaft fixing device 2 further includes a clamping protrusion, and the clamping protrusion 30 is disposed on the second mounting surface 201; the first mounting surface 101 is also provided with a clamping groove matched with the clamping bulge 30; when the fixing clamping sleeve 20 is arranged on the fixing seat 10, at least part of the clamping bulge extends into the clamping groove; the clamping protrusion and the clamping groove are clamped and matched to radially limit the fixed seat 10 and the fixed clamping sleeve 20.

As shown in fig. 3, the first mounting surface 101 further has a first connecting hole 12 spaced apart from the first groove 11, and the second mounting surface 201 further has a second connecting hole 23 spaced apart from the second groove 21. As shown in fig. 2, the rotating shaft fixing device 2 further includes a bolt 40 and a nut 50, and the bolt 40 is threaded with the nut 50 after passing through the second connection hole 23 and the first connection hole 12, so as to mount the fixing clip 20 on the fixing base 10. In this way, the fixing clip 20 is detachably mounted on the fixing seat 10 through the bolt 40 and the nut 50, and the assembly is simple and reliable.

As shown in fig. 2, the shaft fixing device 2 further includes a gasket 70, the gasket 70 is sleeved on the bolt 40, and the gasket 70 is located between the fixing sleeve 20 and the bolt 40.

Optionally, the washer 70 is a spring washer to ensure a stable connection between the fixing ferrule 20 and the fixing base 10.

As shown in fig. 3, the fixing base 10 is a T-shaped arrangement, the fixing base 10 includes a fixing base body 100 and two first connecting bosses 200 respectively disposed on two sides of the fixing base body 100, the first connecting holes 12 are plural, at least one first connecting hole 12 has been disposed on the two first connecting bosses 200, and the end surfaces of the two first connecting bosses 200 and the end surface of the fixing base body 100 are flush with each other to form a first mounting surface 101. As shown in fig. 6, the fixing clip sleeve 20 is in a T-shaped configuration, the fixing clip sleeve 20 includes a fixing clip sleeve body 300 and two second connecting bosses 400 respectively disposed at two sides of the fixing clip sleeve body 300, the second connecting holes 23 are plural, at least one second connecting hole 23 is disposed on each of the two second connecting bosses 400, and the end surfaces of the two second connecting bosses 400 and the end surface of the fixing clip sleeve body 300 are flush with each other to form a second mounting surface 201. Through the arrangement of the first connection boss 200 and the second connection boss 400, the material of the fixing seat 10 can be saved, and the lengths of the first connection hole 12 and the second connection hole 23 can be reduced, so that the length of the bolt 40 can be reduced, and the cost of the bolt 40 can be reduced.

As shown in fig. 2, the rotating shaft fixing device 2 further includes a slide bearing 60, the slide bearing 60 is installed at the installation hole, and the rotating shaft 3 is inserted into a bearing hole 601 of the slide bearing 60. In the process that the rotating shaft 3 moves at the mounting hole along the axial direction thereof, the slide bearing 60 can provide a slide for the rotating shaft 3, so that the stability and reliability of the lifting process of the movable sliding table 4 can be improved.

As shown in fig. 2, 4, 5, 7 and 8, the slide bearing 60 is a split slide bearing 60, the split slide bearing 60 includes a first bearing piece 61 and a second bearing piece 62, the first bearing piece 61 is installed at the first groove 11, the second bearing piece 62 is installed at the second groove 21, and when the fixing clip 20 is installed on the fixing base 10, the second bearing piece 62 is abutted against the first bearing piece 61 and forms a bearing hole 601. Thus, the installation of the rotary shaft 3 is facilitated.

During assembly of the piggyback transport vehicle provided by the embodiment of the application, the fixed seat 10 is fixedly connected with the end underframe 1, then the first bearing flap 61 is installed in the first groove 11 of the fixed seat 10, the second bearing flap 62 is installed in the second groove 21 of the fixed cutting ferrule 20, then the fixed cutting ferrule 20 is installed on the fixed seat 10, the second bearing flap 62 is in butt joint with the first bearing flap 61 to form a bearing hole 601 matched with the rotating shaft 3, and the rotating shaft 3 penetrates through the bearing hole 601.

Optionally, the first mounting surface 101 and the second mounting surface 201 are both planar. The groove wall surface of the first groove 11 is a curved surface for mounting the first bearing lobe 61, and the groove wall surface of the second groove 21 is a curved surface for mounting the second bearing lobe 62.

As shown in fig. 4, the first bearing lobe 61 includes a first bearing body 611 and a first limit boss 612, and the first limit boss 612 is respectively disposed at two axial ends of the outer circumferential surface of the first bearing body 611; the holder 10 is located between the two first limit bosses 612 to axially limit the first bearing lobe 61 and the holder 10.

As shown in fig. 7, the second bearing lobe 62 includes a second bearing body 621 and second limiting bosses 622, and the second bearing body 621 is provided with one second limiting boss 622 at each of two axial ends of the outer circumferential surface thereof; the fixation ferrule 20 is located between two second limit bosses 622 to axially limit the second bearing lobe 62 and the fixation ferrule 20.

Alternatively, the first and second bearing lobes 61, 62 are identical in construction and size. The first limit boss 612 and the second limit boss 622 are both semicircular ring structures.

The application provides a pivot fixing device 2's simple structure is reliable, operating efficiency is high, has good spreading value. The rotating shaft fixing device 2 provides fixing and rotating support for the rotating shaft 3, so that the moving sliding table 4 can stably and reliably rotate relative to the end chassis 1 around the rotating shaft 3, and the moving sliding table 4 can stably and reliably switch between the unfolding state and the folding state. The piggyback transport vehicle is a railway rotary piggyback transport vehicle, and is convenient for loading and unloading road trucks or semitrailers.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 piggyback transport vehicle, comprising:

an end chassis (1);

the rotating shaft fixing device (2) comprises a fixing seat (10) and a fixing clamping sleeve (20), the fixing seat (10) is fixedly connected with the end underframe (1), the fixing seat (10) is provided with a first groove (11), the fixing clamping sleeve (20) is provided with a second groove (21), and the fixing clamping sleeve (20) is installed on the fixing seat (10) and enables the second groove (21) to be in butt joint with the first groove (11) to form an installation hole;

the rotating shaft (3) penetrates through the mounting hole;

the movable sliding table (4) is fixedly connected with the rotating shaft (3), so that the movable sliding table (4) is connected with the end chassis (1) in a pivoting mode through the rotating shaft (3).

2. The piggyback transport vehicle according to claim 1, characterized in that said mounting seat (10) has a first mounting surface (101), said first mounting surface (101) being provided with said first groove (11); the fixed clamping sleeve (20) is provided with a second mounting surface (201), and the second mounting surface (201) is provided with a second groove (21); when the fixing clamping sleeve (20) is installed on the fixing seat (10), the second installation surface (201) is jointed with the first installation surface (101) and the second groove (21) is butted with the first groove (11).

3. The piggyback transport vehicle of claim 2,

the rotating shaft fixing device (2) further comprises a clamping protrusion (30), the clamping protrusion (30) is arranged on the first mounting surface (101), and a clamping groove (22) matched with the clamping protrusion (30) is further formed in the second mounting surface (201); when the fixing clamping sleeve (20) is arranged on the fixing seat (10), at least part of the clamping protrusion (30) extends into the clamping groove (22); the clamping protrusion (30) is in clamping fit with the clamping groove (22) to radially limit the fixed seat (10) and the fixed clamping sleeve (20); or

The rotating shaft fixing device (2) further comprises a clamping protrusion, and the clamping protrusion (30) is arranged on the second mounting surface (201); the first mounting surface (101) is also provided with a clamping groove matched with the clamping protrusion (30); when the fixing clamping sleeve (20) is arranged on the fixing seat (10), at least part of the clamping protrusion extends into the clamping groove; the clamping protrusion and the clamping groove are matched in a clamping mode to enable the fixing base (10) and the fixing clamping sleeve (20) to be radially limited.

4. The piggyback transport vehicle of claim 1,

the fixing seat (10) is provided with a first mounting surface (101) extending along the vertical direction, the first mounting surface (101) is provided with a first groove (11), and the first groove (11) penetrates through the upper end surface of the fixing seat (10) and the lower end surface of the fixing seat (10);

the fixing clamping sleeve (20) is provided with a second mounting surface (201) extending along the vertical direction, the second mounting surface (201) is provided with a second groove (21), and the second groove (21) penetrates through the upper end surface of the fixing seat (10) and the lower end surface of the fixing seat (10);

the rotating shaft (3) extends along the vertical direction, the movable sliding table (4) is fixedly connected with the bottom end of the rotating shaft (3), and the movable sliding table (4) rotates relative to the end bottom frame (1) along the horizontal direction.

5. The piggyback transport vehicle according to claim 4, wherein said moving ramp (4) is movably disposed in a vertical direction, said piggyback transport vehicle further comprising:

the stopping structure (5) is connected with the movable sliding table (4), and the stopping structure (5) is provided with a stopping surface (501) which is in stopping fit with the upper end surface of the fixed seat (10); in the vertical direction, the top end of the rotating shaft (3) is higher than the stop surface (501) so as to prevent the rotating shaft (3) from being pulled out of the mounting hole.

6. The piggyback transport vehicle according to claim 2 or 4, characterized in that the first mounting surface (101) is further provided with a first connecting hole (12) arranged at an interval with the first groove (11), and the second mounting surface (201) is further provided with a second connecting hole (23) arranged at an interval with the second groove (21); the rotating shaft fixing device (2) further comprises a bolt (40) and a nut (50), wherein the bolt (40) penetrates through the second connecting hole (23) and the first connecting hole (12) and then is in threaded connection with the nut (50), so that the fixing clamping sleeve (20) is installed on the fixing seat (10).

7. The piggyback transport vehicle of claim 6,

the fixing seat (10) is arranged in a T shape, the fixing seat (10) comprises a fixing seat body (100) and two first connecting bosses (200) which are respectively arranged on two sides of the fixing seat body (100), the number of the first connecting holes (12) is multiple, at least one first connecting hole (12) is formed in each of the two first connecting bosses (200), and the end faces of the two first connecting bosses (200) are flush with the end face of the fixing seat body (100) to form a first mounting face (101);

fixed cutting ferrule (20) are the setting of T type, fixed cutting ferrule (20) are in including fixed cutting ferrule body (300) and setting respectively two second connection boss (400) of fixed cutting ferrule body (300) both sides, second connecting hole (23) are a plurality of, two all seted up at least one on second connection boss (400) second connecting hole (23), two the terminal surface of second connection boss (400) with the terminal surface parallel and level of fixed cutting ferrule body (300) form second installation face (201).

8. The piggyback transport vehicle according to any one of claims 1 to 5, characterized in that the rotating shaft fixing device (2) further comprises a slide bearing (60), the slide bearing (60) is installed at the mounting hole, and the rotating shaft (3) is inserted at a bearing hole (601) of the slide bearing (60).

9. The piggyback transport vehicle of claim 8, wherein the slide bearing (60) is a split slide bearing (60), the split slide bearing (60) comprising:

a first bearing lobe (61), the first bearing lobe (61) being mounted at the first groove (11);

a second bearing lobe (62), the second bearing lobe (62) mounted at the second recess (21), the second bearing lobe (62) interfacing with the first bearing lobe (61) and forming the bearing bore (601) when the retaining ferrule (20) is mounted on the holder (10).

10. The piggyback transport vehicle of claim 9,

the first bearing lobe (61) comprises a first bearing body (611) and first limiting bosses (612), and the first limiting bosses (612) are respectively arranged at two axial ends of the outer peripheral surface of the first bearing body (611); the fixed seat (10) is positioned between the two first limiting bosses (612) so as to axially limit the first bearing lobe (61) and the fixed seat (10);

the second bearing clack (62) comprises a second bearing body (621) and second limiting bosses (622), and the second limiting bosses (622) are respectively arranged at the two axial ends of the outer peripheral surface of the second bearing body (621); the fixing clamping sleeve (20) is located between the two second limiting bosses (622) to axially limit the second bearing lobe (62) and the fixing clamping sleeve (20).

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