Energy storage device of diesel monorail crane

Abstract

The utility model discloses an energy storage device for a diesel monorail crane, which comprises a first energy accumulator, a controller and a second energy accumulator, the first energy accumulator is electrically connected with the controller, a liquid inlet of the second energy accumulator is connected with a liquid inlet of the first energy accumulator in parallel, and a liquid outlet of the second energy accumulator is connected with a liquid outlet of the controller. And the second energy accumulator is also electrically connected with the controller. According to the utility model, the second energy accumulator which is independently controlled is additionally arranged beside the original first energy accumulator, the hydraulic control part is connected in parallel, and after the locomotive flames out, if an engine fails to start, the second energy accumulator can be used for starting the locomotive again under the condition that the pressure of the energy accumulators is not supplemented manually; when the locomotive starts on a slope, due to the fact that the energy storage device is additionally arranged, the brake opening speed of a locomotive damper brake is increased, clamping pressure drop is slow, starting is smooth, the potential safety hazard of sliding during slope starting is reduced, and the safety performance and the use efficiency of the monorail crane locomotive are effectively improved.

Description

Technical Field

[0001] The utility model relates to an energy storage device for a diesel monorail crane locomotive, belonging to the technical field of coal mine transportation equipment. Background Art

[0002] A certain mine has a designed production capacity of 4 million tons per year. The mine operates on a large scale, with numerous mining faces and segmented mining operations. Manual or rail-based material transportation is labor-intensive, and the use of winches presents significant risks during operation, making them highly susceptible to workplace accidents. Since the mine introduced its first monorail crane in 2017, which began trial operation in Mining Area 15, it has gradually expanded its use throughout the mine. By December 2023, the mine had 14 monorail cranes operating underground, essentially covering all its work locations and eliminating the traditional rail-based transportation model. The adoption of monorail cranes has reduced employee workload and improved transportation efficiency.

[0003] In 2018, a certain mine began to introduce Baker diesel monorail crane locomotives for use. During use, it was found that the capacity of the accumulator used in the hydraulic control part of the locomotive was smaller than that of the Scharf locomotive, XCMG locomotive, and Ferntree locomotive, and the pressure replenishment speed was slow, which had a great impact on the locomotive brake opening pressure and the drive wheel clamping pressure. As a result, the monorail crane locomotive brake opening speed was slow, the clamping pressure dropped rapidly, and starting on a slope easily caused the locomotive to slip, making starting difficult and posing a major safety hazard. After the locomotive was shut down, it could only be started once. If the start failed, the accumulator had to be manually re-pressurized before it could be started again. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an energy storage device for a diesel monorail crane locomotive to solve the technical problems existing in the above-mentioned prior art.

[0005] The technical solution adopted by the utility model is: a diesel monorail crane locomotive energy storage device, including a first accumulator and a controller, the first accumulator is electrically connected to the controller, and also includes a second accumulator, the liquid inlet of the second accumulator is connected in parallel with the liquid inlet of the first accumulator, and the second accumulator is also electrically connected to the controller.

[0006] Preferably, the first accumulator and the second accumulator are both hydraulic accumulators.

[0007] Preferably, the first accumulator and the second accumulator are both bladder-type hydraulic accumulators.

[0008] Beneficial effects of the utility model:

[0009] 1. Compared with the prior art, the present invention adds an independently controlled second accumulator next to the original first accumulator, which is connected in parallel to the hydraulic control part. After the locomotive is turned off, if the engine fails to start, the second accumulator can be used to start the locomotive again without manually replenishing the pressure in the accumulator. When the locomotive starts on a slope, the additional energy storage device accelerates the opening speed of the locomotive brake, slows the drop in clamping pressure, and makes the start smoother, reducing the safety hazard of the locomotive slipping when starting on a slope, and effectively improving the safety performance and utilization efficiency of the monorail crane locomotive.

[0010] 2. After adding the second accumulator, the control pressure of the monorail crane locomotive became more stable and the frequency of damage to the accumulator auxiliary pump was reduced. Before the transformation, the accumulator auxiliary pump was replaced every three months, with a value of 13,044 yuan per unit. After the transformation, it was not replaced for half a year. Before the transformation, the engine power take-off port support was easily damaged after the accumulator auxiliary pump was damaged. The power take-off port support was valued at 23,750 yuan per piece. After the transformation, the power take-off port support was not damaged for half a year. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a control structure block diagram of the utility model.

[0012] Figure 2 It is a schematic diagram of the structure of the second accumulator.

[0013] The reference numerals in the drawings of the specification include: a first accumulator 10 , a controller 20 , a second accumulator 30 , a liquid inlet 31 , a liquid return port 32 , a pressure vessel 33 , an air bag 34 , and an air inlet valve 35 . DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1:

[0016] A diesel monorail crane locomotive energy storage device, such as Figure 1 As shown, it includes a first accumulator 10 and a controller 20, the first accumulator 10 is electrically connected to the controller 20, and the structures of the first accumulator 10 and the controller 20 are both existing; it also includes a second accumulator 30, as shown Figure 2 As shown, the second accumulator 30 includes a liquid inlet 31, a liquid return port 32, a pressure vessel 33, an air bag 34, and an air inlet valve 35. The air bag 34 is filled with nitrogen. The structure of the second accumulator 30 is also conventional. In this embodiment, the liquid inlet 31 of the second accumulator 30 is connected in parallel with the liquid inlet 31 of the first accumulator 10, and the second accumulator 30 is also electrically connected to the controller 20. In this embodiment, both the first accumulator 10 and the second accumulator 30 are air bag type hydraulic accumulators.

[0017] The above is only a specific implementation method of the present invention, but the scope of protection of the present invention is not limited to this. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A diesel monorail locomotive energy storage device, comprising a first energy accumulator and a controller, wherein the first energy accumulator is electrically connected to the controller, and characterized in that: It also includes a second accumulator, the liquid inlet of the second accumulator is connected in parallel with the liquid inlet of the first accumulator, the liquid return port of the second accumulator is connected in parallel with the liquid return port of the first accumulator, and the second accumulator is also electrically connected to the controller.

2. The diesel monorail locomotive energy storage device according to claim 1, characterized in that: The first accumulator and the second accumulator are both hydraulic accumulators.

3. The diesel monorail locomotive energy storage device according to claim 2, characterized in that: The first accumulator and the second accumulator are both bladder-type hydraulic accumulators.

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