Container emergency lifting system for new energy mine truck

Abstract

The utility model discloses a container emergency lifting system of a new energy mine truck, and belongs to the technical field of new energy mine trucks. The system comprises a lifting control valve connected with a lifting oil cylinder. The priority valve is connected with the steering oil cylinder; a P port of the lifting control valve is communicated with an EF port of the priority valve, and a ball valve is arranged on a pipeline. When a high-pressure system breaks down, a lifting system PTO or a lifting oil pump cannot work, a ball valve is opened, a direction control assembly does not move, a low-pressure emergency steering pump is started, and an oil way is composed of a hydraulic oil tank, the low-pressure emergency steering pump, a P opening of a priority valve, an EF opening of the priority valve and a P opening of a lifting control valve, so that lifting of a container is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy mining trucks, in particular to an emergency lifting system for a cargo box of a new energy mining truck. Background Art

[0002] The existing new energy mining trucks use the gearbox to take power. The motor outputs power to the gearbox, the rear of the gearbox is connected to the power take-off, and the lifting oil pump is connected to the power take-off to achieve the lifting of the cargo box. However, the existing ones usually have the following problems:

[0003] (1) When the high voltage of the vehicle circuit fails and the high voltage is lost, the cargo box cannot be lifted because the motor has no power, which makes chassis maintenance difficult;

[0004] (2) The motor fails and there is no power output, so the cargo box cannot be lifted, which makes chassis maintenance difficult;

[0005] (3) If the gearbox or power take-off fails, the power take-off cannot output power and the cargo box cannot be lifted, which makes chassis maintenance difficult. Utility Model Content

[0006] 1. Technical problems to be solved by the utility model

[0007] The utility model aims to solve the problem that the existing cargo box lifting system is easily affected by power failure and cannot lift the cargo box, which brings difficulty in chassis maintenance.

[0008] 2. Technical solution

[0009] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0010] The utility model discloses a cargo box emergency lifting system for a new energy mining truck, comprising:

[0011] A lift control valve connected to the lift cylinder;

[0012] Priority valve connected to the steering cylinder;

[0013] The P port of the lift control valve is connected to the EF port of the priority valve and a ball valve is arranged on the pipeline.

[0014] Preferably, the steering cylinder includes steering cylinder 1 and steering cylinder 2, and the steering cylinder 1 and steering cylinder 2 are connected to a steering gear, and the steering gear is connected to the priority valve.

[0015] Preferably, the steering gear is also connected to a direction control component.

[0016] Preferably, the lift control valve is also connected to a lift oil pump and a hydraulic oil tank.

[0017] Preferably, the priority valve is communicated with the hydraulic oil tank and a filter is provided in between.

[0018] Preferably, an electric steering pump is provided on the pipeline connecting the hydraulic oil tank and the filter and a low-pressure emergency steering pump is connected in parallel.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0021] The utility model discloses a cargo box emergency lifting system for a new energy mining truck, comprising a lifting control valve connected to a lifting oil cylinder; a priority valve connected to a steering oil cylinder; the P port of the lifting control valve is connected to the EF port of the priority valve, and a ball valve is arranged on the pipeline. When a high-pressure system fails, the lifting system PTO or the lifting oil pump cannot work, the ball valve is opened, the direction control component does not move, the low-pressure emergency steering pump is started, and the oil route is from the hydraulic oil tank-low-pressure emergency steering pump-P port of the priority valve-EF port of the priority valve-P port of the lifting control valve to realize the lifting of the cargo box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a schematic diagram of the overall structure of a cargo box emergency lifting system of a new energy mining truck.

[0023] Explanation of the symbols in the schematic diagram:

[0024] 111. Steering cylinder one; 112. Steering cylinder two; 120. Steering gear; 121. Direction control assembly; 130. Priority valve; 140. Filter; 151. Low-pressure emergency steering pump; 152. Electric steering pump; 160. Hydraulic oil tank; 171. Lifting oil pump; 172. Lifting control valve; 173. Lifting cylinder; 180. Ball valve. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0028] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0029] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] Example 1

[0032] See attached Figure 1, a cargo box emergency lifting system of a new energy mining truck in this embodiment includes a lifting control valve 172 connected to a lifting cylinder 173; a priority valve 130 connected to a steering cylinder; the P port of the lifting control valve 172 is connected to the EF port of the priority valve 130, and a ball valve 180 is provided on the pipeline. In the system of this embodiment, when the high-pressure system fails, the lifting system PTO or the lifting oil pump cannot work, the ball valve 180 is opened, the direction control component 121 does not move, and the low-pressure emergency steering pump 181 is started. The oil route is from the hydraulic oil tank 160-low-pressure emergency steering pump 181-P port of the priority valve 130-EF port of the priority valve 130-P port of the lifting control valve 172 to achieve the lifting of the cargo box.

[0033] The steering cylinder includes a steering cylinder 111 and a steering cylinder 2 112, which are connected to a steering gear 120, and the steering gear 120 is connected to the priority valve 130. The steering gear 120 is also connected to a direction control component 121, which is a steering wheel in this embodiment.

[0034] The lifting control valve 172 is also connected to the lifting oil pump 171 and the hydraulic oil tank 160. The priority valve 130 is connected to the hydraulic oil tank 160 and a filter 140 is arranged in between. The pipeline connecting the hydraulic oil tank 160 and the filter 140 is provided with an electric steering pump 152 and a low-pressure emergency steering pump 151 in parallel.

[0035] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A cargo box emergency lifting system for a new energy mining truck, characterized by: include A lift control valve (172) connected to a lift cylinder (173); A priority valve (130) connected to the steering cylinder; The P port of the lift control valve (172) is connected to the EF port of the priority valve (130), and a ball valve (180) is provided on the pipeline; The lifting control valve (172) is also connected to a lifting oil pump (171) and a hydraulic oil tank (160); The priority valve (130) is in communication with the hydraulic oil tank (160) and a filter (140) is provided in between. An electric steering pump (152) is provided on a pipeline connecting the hydraulic oil tank (160) and the filter (140) and a low-pressure emergency steering pump (151) is connected in parallel.

2. The cargo box emergency lifting system of a new energy mining truck according to claim 1 is characterized in that: The steering cylinder comprises a steering cylinder 1 (111) and a steering cylinder 2 (112); the steering cylinder 1 (111) and the steering cylinder 2 (112) are connected to a steering gear (120); and the steering gear (120) is in communication with the priority valve (130).

3. The cargo box emergency lifting system of a new energy mining truck according to claim 2 is characterized in that: The steering gear (120) is also connected to a direction control component (121).

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