Racking crane braking heat dissipation device

Abstract

The utility model relates to a reach stacker brake radiating device, which belongs to the technical field of hoisting equipment and comprises a prefill valve, two ends of the prefill valve are respectively connected with a duplex gear pump and a brake valve, one side of the prefill valve is communicated with a radiator, one side of the radiator is connected with an oil tank, and the oil tank is communicated with the duplex gear pump through a return pipe. And a bypass valve is mounted in the return pipe. Two joints of the duplex gear pump are respectively communicated with the oil tank and the prefill valve to respectively control the brake and the heat dissipation of the brake system, so that the high pressure and the low pressure of the brake valve and the heat radiator are separately controlled, the purpose that the low-pressure oil dissipates the heat of the heat radiator is realized, the heat radiator is protected from being impacted by high-pressure fluctuation, and the service life of the heat radiator is prolonged. And the service life of the radiator is prolonged.

Description

Technical Field

[0001] The utility model relates to a front crane braking and cooling device, belonging to the technical field of lifting equipment. Background Art

[0002] Container reach crane, referred to as reach crane, commonly known as container reach crane or reach crane, is a kind of crane used to load and unload containers. It is a kind of lifting equipment, and can also be said to be a mobile machinery, mainly used for stacking containers and horizontal transportation within docks and yards. Compared with forklifts, reach cranes have the advantages of flexibility, easy operation, good stability, low wheel pressure, high stacking layers, high utilization rate of yards, and can perform cross-container operations. At present, the brake system of the reach crane generally uses a gear pump to supply brakes and heat dissipation for the brake system at the same time. The oil enters the filling valve, one way goes to the brake valve for braking, and the other way goes from the oil return port of the filling valve into the radiator for heat dissipation.

[0003] However, since the brake system uses a high-pressure oil source and the cooling system uses a low-pressure oil source, the internal bypass valve will not respond promptly in releasing the high-pressure fluctuation, which will cause the radiator to be subjected to high-pressure shock and reduce the service life of the radiator. Utility Model Content

[0004] The utility model aims to provide a front crane brake heat dissipation device to solve the above-mentioned technical problem that the service life of the radiator is affected by the impact of high-voltage fluctuations.

[0005] The utility model is realized by the following technical solutions:

[0006] That is, a front crane brake heat dissipation device includes a filling valve, both ends of the filling valve are respectively connected to a double gear pump and a brake valve, one side of the filling valve is connected to a radiator, one side of the radiator is connected to an oil tank, the oil tank and the double gear pump are connected through a return pipe, and a bypass valve is installed inside the return pipe.

[0007] The two connectors of the twin gear pump are connected to the oil tank and the filling valve respectively, so as to control the brake and the heat dissipation of the brake system respectively, so that the high and low pressures of the brake valve and the radiator are controlled separately, achieving the purpose of using low-pressure oil to dissipate heat for the radiator, protecting the radiator from the impact of high-pressure fluctuations, and extending the service life of the radiator.

[0008] A further improvement of the utility model is that the filling valve is connected to the double gear pump through an oil filling pipe, and the filling valve is connected to the brake valve through an oil filling joint.

[0009] A further improvement of the utility model is that the end of the double gear pump is connected to the oil filling pipe and the oil filling joint through a joint flange. The flange is used to realize a reliable and detachable connection between the brake valve, the double gear pump and the filling valve.

[0010] A further improvement of the utility model is that a brake disc is arranged inside the double gear pump, pistons are installed on both sides of the brake disc, and friction plates are arranged inside the pistons.

[0011] A further improvement of the utility model is that the brake disc is rotatably connected to the brake valve.

[0012] A further improvement of the utility model is that the piston and the brake valve are detachably connected.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The two connectors of the twin gear pump are connected to the oil tank and the filling valve respectively, so as to control the brake and the heat dissipation of the brake system respectively, so that the high and low pressures of the brake valve and the radiator are controlled separately, achieving the purpose of using low-pressure oil to dissipate heat for the radiator, protecting the radiator from the impact of high-pressure fluctuations, and extending the service life of the radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0017] Figure 2 This is a control logic diagram of a specific implementation method of the utility model.

[0018] Figure 3 It is a schematic cross-sectional structure diagram of a brake valve in a specific implementation manner of the utility model.

[0019] In the figure: 1. filling valve; 2. double gear pump; 3. brake valve; 4. radiator; 5. oil tank; 6. bypass valve; 101. joint flange; 201. return pipe; 202. oil filling pipe; 301. oil filling joint; 302. brake disc; 303. piston; 304. friction plate. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0021] like Figures 1 to 3 A front crane brake heat dissipation device shown includes a filling valve 1, two ends of the filling valve 1 are respectively connected to a double gear pump 2 and a brake valve 3, one side of the filling valve 1 is connected to a radiator 4, one side of the radiator 4 is connected to an oil tank 5, the oil tank 5 is connected to the double gear pump 2 through a return pipe 201, and a bypass valve 6 is installed inside the return pipe 201.

[0022] The two joints of the double gear pump 2 are respectively connected to the oil tank 5 and the filling valve 1, so as to respectively control the brake and the heat dissipation of the brake system, so that the high and low pressures of the brake valve 3 and the radiator 4 are separately controlled, and the purpose of using low-pressure oil to dissipate heat for the radiator 4 is achieved, thereby protecting the radiator 4 from the impact of high-pressure fluctuations and extending the service life of the radiator 4.

[0023] The filling valve 1 is connected to the double gear pump 2 through the oil filling pipe 202, the filling valve 1 is connected to the brake valve 3 through the oil filling joint 301, and the end of the double gear pump 2 is connected to the oil filling pipe 202 and the oil filling joint 301 through the joint flange 101. The flange is used to realize the reliable and detachable connection between the brake valve 3, the double gear pump 2 and the filling valve 1.

[0024] Among them, a brake disc 302 is arranged inside the double gear pump 2, pistons 303 are installed on both sides of the brake disc 302, friction plates 304 are arranged on the inner side of the piston 303, the brake disc 302 is rotatably connected to the brake valve 3, and the piston 303 is detachably connected to the brake valve 3.

[0025] Working principle:

[0026] By connecting the two joint return pipes 201 and the oil filling pipe 202 of the double gear pump 2 to the oil tank 5 and the filling valve 1 respectively, the braking and the heat dissipation of the brake system are controlled separately, so that the high and low pressures of the brake valve 3 and the radiator 4 are controlled separately. When an oil pump inside the double gear pump 2 enters the oil filling joint 301 inside the brake valve 3 through the filling valve 1, the high-pressure oil body pushes the two pistons 303 to clamp and move. After the friction plate 304 on the side surface of the piston 303 contacts the brake disc 302, the purpose of high-pressure braking is guaranteed. The other oil pump inside the double gear pump 2 is directly connected to the inside of the radiator 4 through the oil tank 5, which ensures the purpose of low-pressure heat dissipation, protects the radiator 4 from being impacted by high-pressure fluctuations, and extends the service life of the radiator 4.

[0027] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0028] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0029] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A front crane brake heat dissipation device, characterized in that: The invention comprises a filling valve (1), two ends of which are respectively connected to a double gear pump (2) and a brake valve (3), one side of the filling valve (1) is connected to a radiator (4), one side of the radiator (4) is connected to an oil tank (5), the oil tank (5) and the double gear pump (2) are connected via a return pipe (201), and a bypass valve (6) is installed inside the return pipe (201).

2. A front crane brake heat dissipation device according to claim 1, characterized in that: The filling valve (1) and the double gear pump (2) are connected via an oil filling pipe (202), and the filling valve (1) and the brake valve (3) are connected via an oil filling joint (301).

3. A front crane brake heat dissipation device according to claim 2, characterized in that: The end of the double gear pump (2) is connected to the oil injection pipe (202) and the oil injection joint (301) through the joint flange (101).

4. A front crane brake heat dissipation device according to claim 1, characterized in that: A brake disc (302) is arranged inside the double gear pump (2), pistons (303) are installed on both sides of the brake disc (302), and friction plates (304) are arranged inside the pistons (303).

5. A front crane brake heat dissipation device according to claim 4, characterized in that: The brake disc (302) is rotatably connected to the brake valve (3).

6. A front crane brake heat dissipation device according to claim 4 or 5, characterized in that: The piston (303) is detachably connected to the brake valve (3).

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