Electric hydraulic grab bucket with battery as power supply

Abstract

An electric hydraulic grab bucket with a battery as a power source comprises a battery pack and inverter all-in-one machine (20), a crawler crane (3), a grab bucket control cabinet (4), a cable (5), a cable drum (6) and an electric hydraulic grab bucket body (7). The battery pack and inverter all-in-one machine (20) is connected with a crawler crane (3), and a grab bucket control cabinet (4) is arranged on the crawler crane (3); the crawler crane (3) is connected with the cable drum (6) through the cable (5), the cable drum (6) is connected with the electric hydraulic grab bucket, the battery pack and inverter all-in-one machine (20) serves as a main power source of the electric hydraulic grab bucket, the crawler crane (3) is connected with the cable drum (6) through the cable (5), and the cable drum (6) is connected with the electric hydraulic grab bucket. And the battery pack and inverter all-in-one machine (20) is used as a main power supply of a main loop and a control loop of the electric hydraulic grab bucket (7).

Description

Technical Field

[0001] The utility model relates to a grab bucket, in particular to an electric hydraulic grab bucket using a battery as a power source, and belongs to the technical field of machinery. Background Art

[0002] The existing electric hydraulic grab is driven by a motor to drive an oil pump, supplying oil to a control module on the grab, and driving the grab bucket petals to work through an actuator oil cylinder.

[0003] The motors on the electric hydraulic grab bucket need to be supplied with industrial electricity to ensure the normal use of the grab bucket. Generally, lifting equipment can be equipped with cables to power the grab bucket, but some mobile lifting equipment such as engineering vehicles do not have such power supply. Usually, there are many disadvantages:

[0004] (1) When using an external power supply through a cable outdoors, the cable is easily damaged during use, causing safety accidents.

[0005] (2) In addition, due to the limitations of cables, the operating range of the mobile engineering vehicle will also be reduced.

[0006] The invention is suitable for all electric hydraulic double-jaw grabs to be used on outdoor mobile lifting equipment without power supply. Utility Model Content

[0007] The purpose of the utility model is to provide an electric hydraulic grab bucket with a battery as a power source to overcome the above-mentioned shortcomings and deficiencies of the prior art. In order to solve the above-mentioned problems, the present invention solves the problem of power supply for the grab bucket and frees the working range of mobile engineering equipment with an electric hydraulic grab bucket.

[0008] Principle of the utility model:

[0009] The existing electric hydraulic grab is driven by a motor to drive an oil pump, supplying oil to a control module on the grab, and driving the grab bucket petals to work through an actuator oil cylinder.

[0010] like Figure 1 and Figure 3 As shown, the electric hydraulic double-jaw grab is used on an engineering vehicle, and the power supply method is that the ground power supply cabinet 10 is powered by an external cable 12.

[0011] The ground power supply cabinet 10 and the external cable 12 are removed, and the ground power supply cabinet 10 and the external cable 12 are removed. Figure 2 The battery pack and inverter integrated machine 20 serve as the total power supply for the electric hydraulic grab.

[0012] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0013] The electric hydraulic grab bucket with battery as power source is characterized by comprising: a battery pack and an inverter integrated machine 20, a crawler crane 3, a grab bucket control cabinet 4, a cable 5, a cable drum 6, and an electric hydraulic grab bucket 7;

[0014] The battery pack and inverter integrated machine 20 is connected to the crawler crane 3, and the crawler crane 3 is provided with a grab control cabinet 4;

[0015] The crawler crane 3 is connected to a cable drum 6 via a cable 5, and the cable drum 6 is connected to an electric hydraulic grab.

[0016] The battery pack and inverter integrated machine 20 serve as the main power supply of the electric hydraulic grab, the crawler crane 3 is connected to the cable reel 6 via the cable 5, the cable reel 6 is connected to the electric hydraulic grab, and finally the electric hydraulic grab realizes the opening and closing action of the grab.

[0017] Furthermore, the battery pack and inverter integrated machine 20 includes: a battery box 21, a high-voltage box 22, a battery integrated cabinet 23, a PCS energy storage converter 24, a molded case circuit breaker 25, a BMU slave control 26, a BCMU master control 27, an ESMU controller 28 and fire-fighting equipment 29.

[0018] Furthermore, the battery box 21 uses a lithium iron phosphate battery pack as a power source for the electric hydraulic grab.

[0019] Furthermore, the battery pack and inverter integrated machine 20 uses an inverter to convert the battery direct current into 50HZ three-phase alternating current, and the inverter outputs AC380V to the grab bucket control cabinet 4.

[0020] The battery pack and inverter integrated machine 20 serves as the total power supply for the main circuit and control circuit of the electric hydraulic grab 7, replacing the ground power supply cabinet 10 and the external cable 12 of the prior art.

[0021] Beneficial effects of the utility model:

[0022] 1. The utility model uses an electric hydraulic grab bucket on outdoor mobile lifting equipment, and no external cable is required to connect the electric hydraulic grab bucket to the mobile lifting equipment, and the electric hydraulic grab bucket can be used normally.

[0023] 2. At the same time, there are no restrictions on the mobile working range of mobile lifting equipment.

[0024] 3. The utility model can realize 8 hours of continuous operation of the grab bucket and the cable drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the prior art.

[0026] Figure 2 It is a structural schematic diagram of the utility model.

[0027] Figure 3 It is a schematic diagram of the on-site working status of the prior art.

[0028] Figure 4 It is a schematic diagram of the integrated machine of the utility model.

[0029] Figure 5 This is a schematic diagram of the integrated machine layout of the utility model.

[0030] Reference numerals:

[0031] Figure 1 :Ground power supply cabinet 10, external cable 12, crawler crane 3, grab control cabinet 4, cable 5, cable drum 6, electric hydraulic grab 7,

[0032] Figure 2 :Battery pack and inverter integrated machine 20, crawler crane 3, grab control cabinet 4, cable 5, cable drum 6, electric hydraulic grab 7,

[0033] Figure 4 and Figure 5 : Battery pack and inverter integrated machine 20: battery box 21, high-voltage box 22, battery integrated cabinet 23, PCS energy storage converter 24, molded case circuit breaker 25, BMU slave control 26, BCMU master control 27, ESMU controller 28, fire-fighting equipment 29. DETAILED DESCRIPTION

[0034] The following is a further description of the present invention in conjunction with specific embodiments. It should be understood that the following embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0035] Example 1

[0036] like Figure 2 As shown, the electric hydraulic grab bucket using the battery as the power source comprises: a battery pack and an inverter integrated machine 20, a crawler crane 3, a grab bucket control cabinet 4, a cable 5, a cable drum 6, and an electric hydraulic grab bucket 7;

[0037] The battery pack and inverter integrated machine 20 is connected to the crawler crane 3 , and the crawler crane 3 is provided with a grab control cabinet 4 .

[0038] The crawler crane 3 is connected to a cable drum 6 via a cable 5, and the cable drum 6 is connected to an electric hydraulic grab.

[0039] The battery pack and inverter integrated machine 20 serve as the main power supply of the electric hydraulic grab, the crawler crane 3 is connected to the cable reel 6 via the cable 5, the cable reel 6 is connected to the electric hydraulic grab, and finally the electric hydraulic grab realizes the opening and closing action of the grab.

[0040] like Figure 4 and Figure 5, further, the battery pack and inverter integrated machine 20: battery box 21, high-voltage box 22, battery integrated cabinet 23, PCS energy storage converter 24, molded case circuit breaker 25, BMU slave control 26, BCMU master control 27, ESMU controller 28 and fire-fighting equipment 29.

[0041] The battery box 21 uses a lithium iron phosphate battery pack as the power supply energy for the electric hydraulic grab.

[0042] The storage medium of the integrated energy storage system of the battery pack and inverter 20 is a high-safety, high-cycle-life lithium iron phosphate battery, which has the characteristics of modularization, easy installation and maintenance. A 3.2V / 150Ah aluminum shell is selected, and the PACK is composed of laser spot welding technology. The battery module is 1P16S with a rated capacity of 86KWh. The series connection of 8 battery modules is 1 cluster, with a total energy of 86KWh, and is connected to a 10kW PCS through a high-voltage box, with a rated current of 65A and a maximum current of 90A.

[0043] The inverter converts the battery DC power into 50HZ three-phase AC power, and the inverter outputs AC380V to the grab bucket control cabinet 4.

[0044] The battery pack and inverter integrated machine 20 serves as the total power supply for the main circuit and control circuit of the electric hydraulic grab 7, replacing the ground power supply cabinet 10 and the external cable 12 of the prior art.

[0045] The utility model is suitable for all electric hydraulic double-flap grabs to be used on outdoor mobile lifting equipment without power supply. When using electric hydraulic grabs on outdoor mobile lifting equipment, there is no need to connect cables to the mobile lifting equipment, and the electric hydraulic grabs can be used normally. At the same time, there is no restriction on the mobile working range of the mobile lifting equipment. This all-in-one machine is designed according to the above scheme, and can realize 8 hours of continuous operation of the grab and cable drum.

[0046] The specific implementation modes of the present invention are described above, but the present invention is not limited thereto. The present invention can also have various changes without departing from the purpose of the present invention.

Claims

1. An electric hydraulic grab bucket powered by a battery, characterized in that: It comprises: a battery pack and an inverter integrated machine (20), a crawler crane (3), a grab control cabinet (4), a cable (5), a cable drum (6), and an electric hydraulic grab (7); The battery pack and inverter integrated machine (20) is connected to a crawler crane (3), and a grab control cabinet (4) is provided on the crawler crane (3); The crawler crane (3) is connected to a cable drum (6) via a cable (5), and the cable drum (6) is connected to an electric hydraulic grab. The battery pack and inverter integrated machine (20) serve as the main power supply of the electric hydraulic grab, the crawler crane (3) is connected to the cable drum (6) via the cable (5), and the cable drum (6) is connected to the electric hydraulic grab.

2. The battery-powered electric hydraulic grab according to claim 1, characterized in that: The battery pack and inverter integrated machine (20) comprises: a battery box (21), a high-voltage box (22), a battery integrated cabinet (23), a PCS energy storage converter (24), a molded case circuit breaker (25), a BMU slave control (26), a BCMU master control (27), an ESMU controller (28) and fire fighting equipment (29).

3. The battery-powered electric hydraulic grab according to claim 2, characterized in that: The battery box (21) uses a lithium iron phosphate battery pack as a power supply energy source for the electric hydraulic grab.

4. The battery-powered electric hydraulic grab according to claim 1, characterized in that: The battery pack and inverter integrated machine (20) uses an inverter to convert the battery direct current into 50HZ three-phase alternating current, and the inverter outputs AC380V to the grab bucket control cabinet (4).

5. The battery-powered electric hydraulic grab according to claim 1, characterized in that: The battery pack and inverter integrated machine (20) serves as the total power supply for the main circuit and control circuit of the electric hydraulic grab (7).

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