A pure electric loader brake system with cooling

Abstract

This utility model discloses a cooling braking system for a pure electric loader, belonging to the field of engineering machinery technology. It includes a front brake and a rear brake. The front brake is connected to a front booster pump, and the rear brake is connected to a rear booster pump. The front and rear booster pumps are connected to a booster pump tank via oil pipes. The booster pump tank is connected to an electronic oil pump via oil pipes. The electronic oil pump is connected to an intercooler via oil pipes, and the intercooler is connected to the booster pump tank via oil pipes. By installing an intercooler in the pipeline, the hydraulic oil in the oil circuit can be cooled during the operation of the braking system, preventing braking system failure due to overheating. It also allows the braking system to operate at a suitable temperature, extending maintenance cycles and service life.

Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery technology, specifically a braking system with cooling for a pure electric loader. Background Technology

[0002] The braking system, a crucial core system of construction machinery, is key to ensuring the safe operation of the entire vehicle. Currently, loader service braking systems utilize traditional foot valve venting, resulting in excessively long pipelines and prolonged brake release times, impacting braking efficiency and performance. Furthermore, due to the operating conditions of loaders, drivers frequently apply the brakes during extended periods, leading to high temperatures in the friction discs. This high temperature then flows into the brake fluid through the brake system. High-temperature brake fluid is prone to vapor lock, reducing braking force. Therefore, a safeguard against overheating and subsequent brake system malfunctions is needed. Utility Model Content

[0003] 1. Technical problem to be solved by the utility model

[0004] The purpose of this invention is to solve the problems of slow brake release and high brake fluid temperature in existing loader braking systems.

[0005] 2. Technical Solution

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] This utility model discloses a cooling braking system for a pure electric loader, comprising a front brake and a rear brake. The front brake is connected to a front booster pump, and the rear brake is connected to a rear booster pump. The front and rear booster pumps are connected to a booster pump tank via oil pipes. The booster pump tank is connected to an electronic oil pump via oil pipes. The electronic oil pump is connected to an intercooler via oil pipes. The intercooler is connected to the booster pump tank via oil pipes.

[0008] Preferably, the front booster pump and the rear booster pump are connected to a quick-release valve via an air hose, the quick-release valve is connected to a foot brake valve via an air hose, and the foot brake valve is connected to an air reservoir via an air hose.

[0009] Preferably, it also includes a VCU, which is connected to a gas storage tank pressure sensor, a braking force pressure sensor, a temperature sensor, and a liquid level sensor via a low-voltage wiring harness.

[0010] Preferably, the gas storage cylinder is equipped with a safety valve and a filling valve.

[0011] Preferably, the air inlet and air outlet of the foot brake valve are connected to the air reservoir pressure sensor and the braking force air pressure sensor, respectively.

[0012] Preferably, a silencer is integrated on the quick-release valve.

[0013] Preferably, the air hose is an internally embedded steel wire rubber hose.

[0014] Preferably, the electronic oil pump is equipped with an electronic control unit, and the electronic oil pump is connected to a temperature sensor at the inlet.

[0015] Preferably, the intercooler has two passages inside: a brake fluid passage and a coolant passage.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0018] This utility model discloses a cooling braking system for a pure electric loader, comprising a front brake and a rear brake. The front brake is connected to a front booster pump, and the rear brake is connected to a rear booster pump. The front and rear booster pumps are connected to a booster pump tank via oil pipes. The booster pump tank is connected to an electronic oil pump via oil pipes. The electronic oil pump is connected to an intercooler via oil pipes, and the intercooler is connected to the booster pump tank via oil pipes. By installing an intercooler in the pipeline, the hydraulic oil in the oil circuit can be cooled during the operation of the braking system, preventing braking system failures caused by overheating. It also allows the braking system to operate at a suitable temperature, extending maintenance cycles and service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a cooling braking system for a pure electric loader according to this utility model.

[0020] Explanation of the labels in the diagram:

[0021] 1. Air reservoir; 2. Air reservoir pressure sensor; 3. Foot brake valve; 4. Braking force air pressure sensor; 5. Quick release valve; 6. Air pressure hose; 7. Rear booster pump; 8. Rear brake; 9. Front brake; 10. Brake hose; 11. Front booster pump; 12. Temperature sensor; 13. Booster pump tank; 14. Liquid level sensor; 15. Electronic oil pump; 16. Intercooler; 17. VCU controller. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0025] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0026] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Example 1

[0029] See attached document Figure 1This embodiment of a pure electric loader with a cooling braking system includes a front brake 9 and a rear brake 8. The front brake 9 is connected to a front booster pump 11, and the rear brake 8 is connected to a rear booster pump 7. The front booster pump 11 and the rear booster pump 7 are connected to a booster pump tank 13 via oil pipes. The booster pump tank 13 is connected to an electronic oil pump 15 via oil pipes. The electronic oil pump 15 is connected to an intercooler 16 via oil pipes, and the intercooler 16 is connected to the booster pump tank 13 via oil pipes. In this embodiment, the braking system, by incorporating an intercooler 16 in the pipelines, cools the hydraulic oil in the oil circuit during braking system operation, preventing braking system malfunctions caused by overheating. It also ensures the braking system operates at a suitable temperature, extending maintenance cycles and service life.

[0030] The front booster pump 11 and the rear booster pump 7 are connected to the quick-release valve 5 via an air hose 6. The quick-release valve 5 is connected to the foot brake valve 3 via the air hose 6, and the foot brake valve 3 is connected to the air reservoir 1 via the air hose 6. When the foot brake valve 3 is released, high-pressure gas is supplied through the foot brake valve 3 and directly discharged into the atmosphere through the quick-release valve 5, reducing the brake release time and avoiding dragging.

[0031] It also includes VCU17, which is connected to air tank pressure sensor 2, braking force air pressure sensor 4, temperature sensor 12 and liquid level sensor 14 via low-voltage wiring harness. The air tank pressure sensor 2, braking force air pressure sensor 4, temperature sensor 12 and liquid level sensor 14 are all common related devices in the prior art.

[0032] The gas storage cylinder 1 is equipped with a safety valve and a filling valve to protect the system pressure and facilitate gas extraction.

[0033] The air inlet and outlet of the foot brake valve 3 are connected to the air reservoir pressure sensor 2 and the braking force air pressure sensor 4, respectively. The quick-release valve 5 integrates a muffler, which can effectively reduce exhaust sound and noise.

[0034] The air hose 6 is an internally embedded steel wire rubber hose. The electronic oil pump 15 is equipped with an electronic control unit, and a temperature sensor 12 is connected to the liquid inlet of the electronic oil pump 15.

[0035] The intercooler 16 has two internal passages: a brake fluid passage and a coolant passage. The brake fluid passage is connected to the brake system pipeline, and the coolant passage is used to transport coolant so that the coolant can carry away the heat of the high-temperature hydraulic oil in the brake fluid passage, thereby achieving cooling. The intercooler 16 is a common type of intercooler in the prior art.

[0036] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A braking system with cooling for a pure electric loader, characterized in that: Includes a front brake (9) and a rear brake (8). The front brake (9) is connected to a front booster pump (11), and the rear brake (8) is connected to a rear booster pump (7). The front booster pump (11) and the rear booster pump (7) are connected to a booster pump tank (13) via oil pipes. The booster pump tank (13) is connected to an electronic oil pump (15) via oil pipes. The electronic oil pump (15) is connected to an intercooler (16) via oil pipes. The intercooler (16) is connected to the booster pump tank (13) via oil pipes.

2. The braking system with cooling for a pure electric loader according to claim 1, characterized in that: The front booster pump (11) and the rear booster pump (7) are connected to the quick release valve (5) via the air hose (6). The quick release valve (5) is connected to the foot brake valve (3) via the air hose (6). The foot brake valve (3) is connected to the air tank (1) via the air hose (6).

3. The braking system with cooling for a pure electric loader according to claim 1, characterized in that: It also includes a VCU (17), which is connected to a gas storage tank pressure sensor (2), a braking force pressure sensor (4), a temperature sensor (12), and a liquid level sensor (14) via a low-voltage wiring harness.

4. The braking system with cooling for a pure electric loader according to claim 2, characterized in that: The gas storage cylinder (1) is equipped with a safety valve and a filling valve.

5. A cooling braking system for a pure electric loader according to claim 2, characterized in that: The air inlet and outlet of the foot brake valve (3) are respectively connected to the air storage cylinder pressure sensor (2) and the braking force air pressure sensor (4).

6. A cooling braking system for a pure electric loader according to claim 2, characterized in that: A silencer is integrated on the quick-release valve (5).

7. A cooling braking system for a pure electric loader according to claim 2, characterized in that: The air hose (6) is an internally embedded steel wire rubber hose.

8. A cooling braking system for a pure electric loader according to claim 2, characterized in that: The electronic oil pump (15) is equipped with an electronic control unit, and the electronic oil pump (15) is connected to a temperature sensor (12) at the inlet.

9. A cooling braking system for a pure electric loader according to claim 2, characterized in that: The intercooler (16) has two passages inside: a brake fluid passage and a coolant passage.

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