CN211226182U

CN211226182U - Rear axle assembly trolley

Info

Publication number: CN211226182U
Application number: CN201922078763.9U
Authority: CN
Inventors: 李晓刚
Original assignee: Dalian Weier Equipment Technology Co ltd
Current assignee: Dalian Weier Equipment Technology Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-08-11
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a rear axle assembly platform truck. The utility model provides a pair of rear axle assembly platform truck, include: rear axle assembly platform truck automobile body, lift platform, first lifing arm, the second lifing arm, hydraulic cylinder, go up to rotate connecting piece and down to rotate the connecting piece, when needs lift platform to go up, stretch out through hydraulic cylinder's piston rod, rotate the connecting piece and drive first lifing arm respectively down through last, the both ends of second lifing arm are kept away from mutually, and horizontal slip in rear axle assembly platform truck automobile body and lift platform, it rises to drive lift platform, only need set up a hydraulic cylinder, can realize the steady lift to lift platform, moreover, the steam generator is simple in structure, the cost is lower.

Description

Rear axle assembly trolley

Technical Field

The utility model relates to an automobile assembling technical field, concretely relates to rear axle assembly platform truck.

Background

The axle is connected with the frame through the suspension, and wheels are arranged at two ends of the axle. The vertical load borne by the frame is transmitted to the wheels through the axle; the rolling resistance, driving force, braking force and lateral force on the wheels, bending moment and torque thereof are transmitted to the suspension and the frame through the axle, so that the axle is used for transmitting the acting force between the frame and the wheels and the bending moment and torque generated by the acting force. The front axle is a driven axle, also called a steering axle, and is generally uniformly distributed at the front end of the vehicle, so the front axle is called a front axle. It is connected to the steering system by means of a steering knuckle. The steering force output by the steering gear can be transmitted to the wheels to achieve steering of the vehicle. It not only supports the sprung mass at the front of the vehicle, bears vertical loads, but also bears various longitudinal, lateral and related moments.

At present, in passenger car production, the rear axle assembly needs to use the rear axle assembly trolley, and the four cylinders of the existing rear axle assembly trolley lifting device respectively lift at the four corners of the lifting platform, so that the lifting platform is difficult to guarantee the lifting and descending stability.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rear axle assembly platform truck to solve current rear axle assembly platform truck elevating gear and adopt four to carry out the lifting respectively in the hydro-cylinder in the lift platform four corners, be difficult to guarantee the lift platform rise with the problem of the stationarity that descends.

The utility model provides a rear axle assembly platform truck, include: the rear axle assembly trolley comprises a rear axle assembly trolley body, a lifting platform, a first lifting arm, a second lifting arm, a hydraulic oil cylinder, an upper rotating connecting piece and a lower rotating connecting piece;

the two first lifting arms are respectively positioned at the inner sides of the two second lifting arms, the adjacent first lifting arms are hinged with the middle parts of the second lifting arms, the top ends of the first lifting arms are hinged with the bottom of the lifting platform, the top ends of the first lifting arms are connected with the lifting platform in a sliding mode in the horizontal direction, and the bottom ends of the first lifting arms are hinged with the rear axle assembly trolley body; the top end of the second lifting arm is hinged with the lifting platform, the bottom end of the second lifting arm is hinged with the rear axle assembly trolley body, and the bottom end of the second lifting arm is connected with the rear axle assembly trolley body in a sliding mode in the horizontal direction;

the hydraulic oil cylinder is arranged between the rear axle assembly trolley body and the lifting platform, a piston rod is arranged at one end of the hydraulic oil cylinder, one end of the piston rod is rotatably connected with one end of the upper rotating connecting piece, the other end of the upper rotating connecting piece is rotatably connected with the upper portion of the first lifting arm, the bottom end of the hydraulic oil cylinder is rotatably connected with one end of the lower rotating connecting piece, and the other end of the lower rotating connecting piece is rotatably connected with the lower portion of the second lifting arm.

Optionally, after a piston rod of the hydraulic oil cylinder retracts, the height from the upper surface of the lifting platform to the bottom of the body of the rear axle assembly trolley is less than 700 mm.

Optionally, when a piston rod of the hydraulic oil cylinder extends out, the lifting stroke of the upper surface of the lifting platform is not less than 800 mm.

Optionally, the upper surface of the lifting platform is paved by polyurethane.

Optionally, the hydraulic oil cylinder and the two first lifting arms are equal in distance.

The utility model discloses following beneficial effect has:

the utility model provides a rear axle assembly trolley, two first lifting arms are respectively located the inboard of two second lifting arms, adjacent first lifting arm is articulated with the middle part of second lifting arm, the top of first lifting arm is articulated with the bottom of lift platform and the top of first lifting arm is connected with lift platform in the horizontal direction in a sliding manner, the bottom of first lifting arm is articulated with rear axle assembly trolley body; the top of second lifing arm is articulated with lift platform, the bottom of second lifing arm is articulated with rear axle assembly platform truck automobile body and the bottom of second lifing arm is sliding connection on the horizontal direction with rear axle assembly platform truck automobile body, hydraulic cylinder sets up between rear axle assembly platform truck automobile body and lift platform, hydraulic cylinder's one end is provided with the piston rod, the one end of piston rod is rotated with the one end of last rotating connecting piece and is connected, the other end of last rotating connecting piece is rotated with the upper portion of first lifing arm and is connected, hydraulic cylinder's bottom is rotated with the one end of lower rotating connecting piece and is connected, the other end of lower rotating connecting piece is rotated with the lower part of second lifing arm and is connected, only need to set up a hydraulic cylinder, can realize the steady lift to lift platform, moreover.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a conventional rear axle assembly trolley.

Fig. 2 is the utility model provides a regional schematic diagram that overlooks below lifting platform of rear axle assembly platform truck.

Fig. 3 is a schematic cross-sectional view in the direction C-C of fig. 2.

Illustration of the drawings: 1-assembling a trolley body of the rear axle; 2-a lifting platform; 3-a first lifting arm; 4-a second lifting arm; 5-a hydraulic oil cylinder; 6-upper rotating connecting piece; 7-lower swivel connection; 51-piston rod.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

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.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1 to 3, an embodiment of the present invention provides a rear axle assembly trolley, including: rear axle assembly platform truck automobile body 1, lift platform 2, first lifing arm 3, second lifing arm 4, hydraulic cylinder 5, go up and rotate connecting piece 6 and lower swivel connecting piece 7.

The two first lifting arms 3 are respectively positioned at the inner sides of the two second lifting arms 4, the adjacent first lifting arms 3 are hinged with the middle parts of the second lifting arms 4, the top ends of the first lifting arms 3 are hinged with the bottom of the lifting platform 2, the top ends of the first lifting arms 3 are connected with the lifting platform 2 in a sliding mode in the horizontal direction, and the bottom ends of the first lifting arms 3 are hinged with the rear axle assembly trolley body 1; the top end of the second lifting arm 4 is hinged to the lifting platform 2, the bottom end of the second lifting arm 4 is hinged to the rear axle assembly trolley body 1, and the bottom end of the second lifting arm 4 is connected with the rear axle assembly trolley body 1 in a sliding mode in the horizontal direction.

Specifically, hydraulic cylinder 5 sets up between rear axle assembly platform truck automobile body 1 and lift platform 2, and hydraulic cylinder 5's one end is provided with piston rod 51, and the one end of piston rod 51 rotates with the one end of last rotating connecting piece 6 to be connected, and the other end of last rotating connecting piece 6 rotates with the upper portion of first lifing arm 3 to be connected, and hydraulic cylinder 5's bottom rotates with the one end of lower rotating connecting piece 7 to be connected, and the other end of lower rotating connecting piece 7 rotates with the lower part of second lifing arm 4 to be connected.

In this embodiment, after the piston rod 51 of the hydraulic oil cylinder 5 retracts, the height from the upper surface of the lifting platform 2 to the bottom of the body 1 of the rear axle assembly trolley is less than 700mm, so that the lifting platform is adapted to the limited space below the underframe of the passenger car. When the piston rod 51 of the hydraulic oil cylinder 5 is in an extending state, the lifting stroke of the upper surface of the lifting platform 2 is not less than 800 mm.

In this embodiment, the upper surface of the lifting platform 2 is paved by polyurethane to prevent scratching the surface of the workpiece. The hydraulic oil cylinder 5 and the two first lifting arms 3 are equal in spacing.

The embodiment of the utility model provides a pair of rear axle assembly platform truck when needs lift platform 2 to rise, through stretching out of hydraulic cylinder 5's piston rod 51, through last connecting piece 6 and the lower both ends that rotate connecting piece 7 and drive first lifing arm 3, second lifing arm 4 respectively keep away from mutually to horizontal slip in rear axle assembly platform truck automobile body 1 and lift platform 2 drives lift platform 2. When needing lift platform 2 to descend, through hydraulic cylinder 5's piston rod 51's withdrawal, rotate the connecting piece 6 and rotate the connecting piece 7 down through going up and drive first lifing arm 3 respectively, the both ends of second lifing arm 4 are close to mutually to horizontal slip in rear axle assembly platform truck automobile body 1 and lift platform 2 drives lift platform 2 and descends, only needs to set up a hydraulic cylinder, can realize the steady lift to lift platform, simple structure, and the cost is lower.

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.

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, for example, capable of operation in sequences other than those illustrated or otherwise 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

1. A rear axle assembly trolley, comprising: the rear axle assembling trolley comprises a rear axle assembling trolley body (1), a lifting platform (2), a first lifting arm (3), a second lifting arm (4), a hydraulic oil cylinder (5), an upper rotating connecting piece (6) and a lower rotating connecting piece (7);

the two first lifting arms (3) are respectively positioned at the inner sides of the two second lifting arms (4), the adjacent first lifting arms (3) are hinged with the middle parts of the second lifting arms (4), the top ends of the first lifting arms (3) are hinged with the bottom of the lifting platform (2), the top ends of the first lifting arms (3) are connected with the lifting platform (2) in a sliding mode in the horizontal direction, and the bottom ends of the first lifting arms (3) are hinged with the rear axle assembly trolley body (1); the top end of the second lifting arm (4) is hinged with the lifting platform (2), the bottom end of the second lifting arm (4) is hinged with the rear axle assembly trolley body (1), and the bottom end of the second lifting arm (4) is connected with the rear axle assembly trolley body (1) in a sliding mode in the horizontal direction;

hydraulic cylinder (5) set up in rear axle assembly platform truck automobile body (1) with between lift platform (2), the one end of hydraulic cylinder (5) is provided with piston rod (51), the one end of piston rod (51) with the one end of last rotating connecting piece (6) is rotated and is connected, the other end of going up rotating connecting piece (6) with the upper portion of first lifing arm (3) is rotated and is connected, the bottom of hydraulic cylinder (5) with the one end of lower rotating connecting piece (7) is rotated and is connected, the other end of lower rotating connecting piece (7) with the lower part of second lifing arm (4) is rotated and is connected.

2. The rear axle assembly trolley according to claim 1, characterized in that after the piston rod (51) of the hydraulic oil cylinder (5) is retracted, the height of the upper surface of the lifting platform (2) from the bottom of the body (1) of the rear axle assembly trolley is less than 700 mm.

3. The rear axle assembly trolley according to claim 1, wherein the lifting stroke of the upper surface of the lifting platform (2) is not less than 800mm in the extended state of a piston rod (51) of the hydraulic oil cylinder (5).

4. The rear axle assembly trolley according to claim 1, characterized in that the upper surface of the lifting platform (2) is paved with polyurethane.

5. The rear axle assembly trolley according to claim 1, characterized in that the hydraulic ram (5) is equidistant from the two first lifting arms (3).