Hydraulic oil cylinder backward-pushing transport vehicle

Abstract

The utility model relates to a hydraulic oil cylinder backward-pushing transport vehicle which comprises a vehicle frame, a carriage or a tank body is arranged on the vehicle frame, a pushing plate is arranged in the carriage or the tank body, a hydraulic cylinder is arranged between the pushing plate and an installation base on the front portion of the vehicle frame, and the hydraulic cylinder drives the pushing plate to move in the carriage or the tank body. A hydraulic oil tank is arranged on the rear portion of the installation base and the lower portion of the hydraulic cylinder, and hydraulic oil is stored in the hydraulic oil tank. According to the hydraulic oil cylinder backward-pushing transport vehicle, the pushing plate is driven to move through stretching and retracting of the hydraulic cylinder, in the vehicle type, the hydraulic oil tank is generally hung in the longitudinal middle of the vehicle frame, however, the hydraulic oil tank is arranged on the lower portion of the hydraulic cylinder, the space of the lower portion of the hydraulic cylinder is fully utilized, and the weight of the front portion of the vehicle frame is increased; the weight of the middle-rear part of the frame is reduced, and the condition that the frame is light in front and heavy in rear is avoided. And meanwhile, the hydraulic oil pipe is saved, air can be prevented from entering the hydraulic oil pipe, and the situation that air enters the hydraulic cylinder through the hydraulic oil pipe and then influences operation of the hydraulic cylinder is avoided.

Description

Technical Field

[0001] The utility model relates to a transport vehicle, in particular to a hydraulic cylinder push-back transport vehicle which is provided with a push plate in a tank body or a carriage and pushes the push plate to move through a hydraulic cylinder, and then pushes out goods through the push plate to realize unloading. Background Art

[0002] Existing vans or tank trucks with push plates can have a push plate installed in the car or tank body, a mounting seat is installed at the front of the frame, and a hydraulic cylinder is installed between the mounting seat and the push plate. The push plate is driven to move by the extension and contraction of the hydraulic cylinder, thereby realizing the unloading of the goods; of course, when the hydraulic cylinder is a one-way cylinder, it is also necessary to return the push plate to its original position through other devices such as a winch.

[0003] However, the transport vehicle is equipped with multiple hydraulic devices, such as the hydraulic cylinder that drives the push plate to move, and the hydraulic cylinder needs to be equipped with a hydraulic oil tank. In existing transport vehicles, especially transport vehicles with push plates that are pushed by hydraulic cylinders, the hydraulic oil tank is suspended in the lower middle part of the frame, that is, it is suspended in the middle of the longitudinal direction of the frame. By arranging the hydraulic oil tank in this way, air may remain in the hydraulic oil pipe during the hydraulic oil inlet and return process, thereby affecting the operation of the hydraulic cylinder; at the same time, the hydraulic oil tank is arranged in the middle of the longitudinal direction of the frame, the rear part of the frame bears a large load, and the front part of the frame is relatively light, and the problem of heavy rear and light front often occurs.

[0004] Of course, in vehicle models in other fields, such as rear-flip dump trucks, a protruding frame is also provided at the front of the frame, and a hydraulic oil tank is provided on the protruding frame. For example, a hydraulic oil tank frame is provided at the front of the frame of a rear-flip truck, and a hydraulic oil tank is provided on the hydraulic oil tank frame. However, when this method is applied in this field, the additional hydraulic oil tank frame will inevitably increase the length of the vehicle and affect the overall structural performance of the hydraulic cylinder push-back transport vehicle. Utility Model Content

[0005] The main purpose of the utility model is to provide a hydraulic cylinder pushback transport vehicle to solve the problem in the prior art that the hydraulic oil tank is arranged in the middle of the frame, which easily causes gas to enter the hydraulic cylinder through the hydraulic oil pipe, and the frame is heavy at the rear and light at the front.

[0006] The utility model provides a hydraulic cylinder pushback transport vehicle, comprising a frame, a carriage or a tank body is arranged on the frame, a push plate is arranged in the carriage and / or the tank body, a mounting seat is arranged at the front of the frame, a hydraulic cylinder is arranged between the mounting seat and the push plate, and the hydraulic cylinder drives the push plate to move in the carriage or the tank body. The hydraulic cylinder is located at the front of the frame, a hydraulic oil tank is arranged at the rear of the mounting seat and the lower part of the hydraulic cylinder, the hydraulic oil tank is connected to a hydraulic oil pipe, hydraulic oil is stored in the hydraulic oil tank, and the hydraulic oil tank and the hydraulic cylinder are connected via a hydraulic oil pipe. Of course, an oil pump and other devices should also be installed on the hydraulic oil pipe between the hydraulic oil tank and the hydraulic cylinder to realize the drive control of oil inlet or oil return.

[0007] Preferably, the frame is a semi-trailer frame, a traction seat is arranged at the front of the frame, and the hydraulic oil tank is located on the upper part of the traction seat.

[0008] Preferably, the frame includes two longitudinal longitudinal beams, the bottom plate of the hydraulic oil tank is low in the middle and high in the left and right parts, and the left and right parts of the hydraulic oil tank are overlapped on the upper part of the longitudinal beams.

[0009] More preferably, the left and right parts of the hydraulic oil tank extend out of the outside of the longitudinal beam.

[0010] More preferably, the oil inlet of the hydraulic oil tank is opened on the upper end surface of the left or right part of the hydraulic oil tank.

[0011] More preferably, the carriage or tank body includes a lower floor plate, which extends to the front of the frame, and the hydraulic oil tank is mounted on the lower floor plate, and the bottom plate of the hydraulic oil tank fits in the lower floor plate of the carriage or tank body.

[0012] The utility model provides a hydraulic cylinder pushback transport vehicle, which has the following advantages compared with the prior art:

[0013] Beneficial effects:

[0014] The above-mentioned hydraulic cylinder pushback transport vehicle drives the push plate to move through the extension and retraction of the hydraulic cylinder. In this type of vehicle, the hydraulic oil tank is generally arranged in the middle of the longitudinal direction of the frame and is suspended in the middle and lower part of the frame. However, the utility model arranges the hydraulic oil tank at the lower part of the hydraulic cylinder, fully utilizes the space at the lower part of the hydraulic cylinder, increases the weight of the front part of the frame, reduces the weight of the middle and rear part of the frame, and avoids the situation where the front of the frame is light and the back is heavy. At the same time, the hydraulic oil tank is arranged at the lower part of the hydraulic cylinder, the distance between the hydraulic oil tank and the hydraulic cylinder is close, and the height difference is small. The length and vertical height of the hydraulic oil pipe are both small. While saving the hydraulic oil pipe, it can also prevent air from entering the hydraulic oil pipe, and avoid air from entering the hydraulic cylinder and affecting the operation of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0016] Obviously, the drawings described below are only some specific embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without any creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a hydraulic cylinder pushback transport vehicle in Example 1 of the utility model.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the hydraulic oil tank in Example 1 of the utility model.

[0019] Figure 3 It is a cross-sectional schematic diagram of the hydraulic oil tank in Example 1 of the utility model.

[0020] Description of Figure Numbers:

[0021] Label name Label name 1 Mounting Block 31 Right bottom plate 2 Hydraulic Cylinders 32 Middle bottom plate 3 Hydraulic oil tank 33 Left bottom plate 4 Push Plate 34 Hydraulic oil tank cap DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] Example 1

[0029] The embodiment provides a hydraulic cylinder pushback transport vehicle, which includes a frame, a carriage or a tank body is arranged on the frame, a push plate 4 is arranged in the carriage or the tank body, a mounting seat 1 is arranged at the front of the frame, a hydraulic cylinder 2 is arranged between the mounting seat 1 and the push plate 4, and the hydraulic cylinder 2 drives the push plate 4 to move in the carriage or the tank body. The hydraulic cylinder 2 is located at the front of the frame, and a hydraulic oil tank 3 is arranged at the rear of the mounting seat 1 and the lower part of the hydraulic cylinder 2. The hydraulic oil tank is connected to a hydraulic oil pipe, and hydraulic oil is stored in the hydraulic oil tank 3. The hydraulic oil tank 3 and the hydraulic cylinder 2 are connected through a hydraulic oil pipe. Of course, an oil pump and other devices should also be installed on the hydraulic oil pipe between the hydraulic oil tank 3 and the hydraulic cylinder 2 to realize the driving control of oil inlet or oil return. The difference in the hydraulic oil pipe connection method between the hydraulic oil tank 3 and the hydraulic cylinder 2, as well as the difference in the oil pump and other devices, does not affect the protection scope of this application.

[0030] The above-mentioned hydraulic cylinder pushback transport vehicle drives the push plate 4 to move through the extension and retraction of the hydraulic cylinder 2. In this type of vehicle, the hydraulic oil tank 3 is generally arranged in the middle of the longitudinal direction of the frame and is suspended in the middle and lower part of the frame. However, in this embodiment, the hydraulic oil tank 3 is arranged at the lower part of the hydraulic cylinder 2, making full use of the space at the lower part of the hydraulic cylinder 2, increasing the weight of the front part of the frame, reducing the weight of the middle and rear part of the frame, and avoiding the situation where the frame is light at the front and heavy at the rear. At the same time, the hydraulic oil tank 3 is arranged at the lower part of the hydraulic cylinder 2, the distance between the hydraulic oil tank 3 and the hydraulic cylinder 2 is close, and the height difference is small. The length and vertical height of the hydraulic oil pipe are both small. While saving the hydraulic oil pipe, it can also prevent air from entering the hydraulic oil pipe, avoiding the air from entering the hydraulic cylinder 2 and affecting the operation of the hydraulic cylinder 2, thereby reducing the failure rate.

[0031] Specifically, in this embodiment, the frame is a semi-trailer frame, a traction seat is arranged at the front of the frame, and the hydraulic oil tank 3 is located on the upper part of the traction seat. The traction seat is directly connected to the front of the vehicle, and the hydraulic oil cylinder is arranged there, which can indirectly carry the weight through the front of the vehicle, thereby increasing the load-bearing capacity of the entire frame.

[0032] Specifically, in order to improve the stability of the hydraulic oil tank 3, prevent the hydraulic oil tank 3 from moving, and also to increase the storage capacity of the hydraulic oil tank 3, the frame includes two longitudinal longitudinal beams, the bottom plate of the hydraulic oil tank 3 is low in the middle, high in the left and right parts, and the left and right parts of the hydraulic oil tank 3 are overlapped on the upper part of the longitudinal beams. In this embodiment, for the convenience of description, the bottom plate of the hydraulic oil tank is divided into a left bottom plate 33, a middle bottom plate 32 and a right bottom plate 31, the left bottom plate 33 and the right bottom plate 31 are higher than the middle bottom plate 32, the middle bottom plate 32 is recessed downward, thereby obtaining more oil storage space, and the left bottom plate 33 and the right bottom plate 31 can be horizontal, thereby facilitating the overlap of the left bottom plate 33 and the right bottom plate 31 on the longitudinal beams, and the overlap can be direct overlap, or can be indirectly overlapped through the lower bottom plate of the car or tank body.

[0033] More specifically, in this embodiment, in order to further increase the storage capacity of the hydraulic oil tank 3 , the left and right parts of the hydraulic oil tank 3 extend out of the outside of the longitudinal beam.

[0034] More specifically, in this embodiment, in order to facilitate operation, the oil inlet of the hydraulic oil tank 3 is opened on the upper end surface of the left or right part of the hydraulic oil tank 3, and a hydraulic oil tank cover 34 is provided at the oil inlet.

[0035] More specifically, in the present embodiment, the carriage or tank body includes a lower floor plate. In order to facilitate the installation of the hydraulic oil tank 3 and improve the strength of the frame, the lower floor plate extends to the front of the frame. The hydraulic oil tank 3 is installed on the lower floor plate. The floor plate of the hydraulic oil tank 3 can be divided into a left floor plate 33, a middle floor plate 32 and a right floor plate 31 according to the left and right positions. The middle floor plate 32 is low while the left floor plate 33 and the right floor plate 31 on both sides are high. The left floor plate 33 and the right floor plate 31 are horizontally arranged and overlapped on the upper part of the longitudinal beam. The shape of the lower floor plate of the carriage corresponds to the left floor plate 33, the middle floor plate 32 and the right floor plate 31, so that the left floor plate 33, the middle floor plate 32 and the right floor plate 31 fit the lower floor plate of the carriage or the tank body.

[0036] Of course, the above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept of the utility model, or direct / indirect application in other related technical fields are included in the patent protection scope of the utility model and should be protected by the utility model.

Claims

1. A hydraulic cylinder pushback transport vehicle, comprising a frame, a carriage or a tank body is arranged on the frame, a push plate is arranged in the carriage or the tank body, a mounting seat is arranged at the front of the frame, a hydraulic cylinder is arranged between the mounting seat and the push plate, and the hydraulic cylinder drives the push plate to move in the carriage or the tank body, characterized in that: The hydraulic cylinder is located at the front of the frame, and a hydraulic oil tank is provided at the rear of the mounting seat and below the hydraulic cylinder. The hydraulic oil tank is connected to a hydraulic oil pipe. Hydraulic oil is stored in the hydraulic oil tank, and the hydraulic oil tank and the hydraulic cylinder are connected via a hydraulic oil pipe.

2. The hydraulic cylinder pushback transport vehicle according to claim 1, characterized in that: The frame is a semi-trailer frame, a traction seat is arranged at the front of the frame, and the hydraulic oil tank is located on the upper part of the traction seat.

3. The hydraulic cylinder pushback transport vehicle according to claim 1, characterized in that: The frame comprises two longitudinal longitudinal beams, the bottom plate of the hydraulic oil tank is low in the middle and high in the left and right parts, and the left and right parts of the hydraulic oil tank are overlapped on the upper part of the longitudinal beams.

4. The hydraulic cylinder pushback transport vehicle according to claim 3, characterized in that: The left and right parts of the hydraulic oil tank extend out of the outer side of the longitudinal beam.

5. The hydraulic cylinder pushback transport vehicle according to claim 3 or 4, characterized in that: The oil inlet of the hydraulic oil tank is opened on the upper end surface of the left or right part of the hydraulic oil tank.

6. The hydraulic cylinder pushback transport vehicle according to claim 3 or 4, characterized in that: The carriage or tank body comprises a lower bottom plate, which extends to the front of the frame, and the hydraulic oil tank is mounted on the lower bottom plate, and the bottom plate of the hydraulic oil tank fits the lower bottom plate of the carriage or tank body.

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