Electric crane structure

Abstract

The utility model discloses an electric crane structure and belongs to the technical field of lifting tools. Comprising a base, a supporting column, a jack body and a suspension arm, the jack body comprises a base, an outer sleeve and a piston rod, the outer sleeve is fixedly arranged on the base, an oil cylinder is arranged in the outer sleeve, the jack body further comprises an electric pump and a battery pack, the electric pump is connected with a controller, function keys are arranged on the controller, and the battery pack is connected with the electric pump. And the function keys comprise a start-stop key for performing on-off control on the electric pump, an ascending key for enabling the piston rod to ascend and a descending key for enabling the piston rod to descend. The lifting jack has the advantages that the lifting jack can be ascended, stopped and descended only by selecting corresponding keys, the operation is simple, time and labor are saved, the manual operation intensity can be reduced during operation, the operation efficiency can be improved during operation, and potential safety hazards during use of the lifting jack are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of lifting tool technology, specifically relating to an electric crane structure. Background Technology

[0002] Cranes are indispensable equipment in modern industrial production, widely used in factories, ports, construction sites, railways, and other places to complete various construction and operations such as lifting, transporting, loading and unloading, and installing materials, thereby improving labor productivity. A conventional crane includes a base, support columns, hydraulic jacks, and a boom. Among them, the hydraulic jacks usually use plungers or hydraulic cylinders as rigid lifting components to provide power to the boom. Its working principle is: by manually pressing the lever, the pump core of the oil pump reciprocates, continuously pumping hydraulic oil into the oil cylinder, causing the piston rod in the oil cylinder to gradually rise, driving the boom to work, thereby achieving the purpose of lifting heavy objects.

[0003] Currently, manual cranes are well-known and very mature products. They have a simple structure and low cost. However, the manual operation method is difficult to operate and inefficient. In particular, for some users with less strength and physical strength, there are many inconveniences in using manual crane equipment.

[0004] In view of the above-mentioned existing technology, it is necessary to improve the structure of the existing crane. To this end, the applicant has made a useful design, and the technical solution to be introduced below is produced in this context. Utility Model Content

[0005] The purpose of this utility model is to provide an electric crane structure that is simple and convenient to operate and increases work efficiency.

[0006] The purpose of this utility model is achieved as follows: an electric crane structure includes a base, a support column, a jack body, and a boom. The lower end of the support column is fixedly connected to the base, and the upper end is hinged to the boom. The jack body is hinged between the support column and the boom to provide power to the boom. The jack body includes a base, an outer sleeve fixedly mounted on the base and containing a hydraulic cylinder, and a piston rod that moves up and down within the hydraulic cylinder. The jack body also includes an electric pump and a battery pack. The electric pump is connected to a controller, which has function buttons. The function buttons include a start / stop button for controlling the electric pump, a rise button for raising the piston rod, and a fall button for lowering the piston rod.

[0007] In a specific embodiment of this utility model, the electric pump is equipped with a hydraulic pump and a motor. The motor is connected to the controller, the output shaft of the motor is connected to the hydraulic pump, and the other end extends outward from the base.

[0008] In another specific embodiment of this utility model, the hydraulic pump is located on one side of the outer casing and its bottom is fixed to the base. The base has an outer casing oil inlet and return passage connecting the outer casing and the hydraulic pump, and an oil cylinder oil inlet and return passage connecting the oil cylinder and the hydraulic pump.

[0009] In another specific embodiment of this utility model, the electric pump further includes a left housing and a right housing, which are spliced ​​together to form a protective shell for covering the hydraulic pump and the motor.

[0010] In another specific embodiment of this utility model, the controller is detachably mounted on the top of the electric pump, and the controller has an up button, a start / stop button and a down button on its upper surface.

[0011] In a further specific embodiment of this utility model, the jack body also includes a battery pack for powering the controller and motor. The electric pump has a battery pack pin installed on its outer end face away from the base, and the battery pack is mated with the battery pack pin.

[0012] In a further specific embodiment of this utility model, the bottom of the base is provided with rollers, and the upper end of the support column is also provided with a handle for easy pushing and pulling operation.

[0013] Because of the above-mentioned structure, this utility model uses an electric mechanism to drive the jack to drive the crane, avoiding repeated pressing of the handle. Simply select the corresponding button to raise, stop and lower the jack. The operation is simple, time-saving and labor-saving. It can reduce the intensity of manual operation and improve the efficiency of operation, and reduce the safety hazards when using the jack. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal oil circuit of this utility model;

[0016] Figure 3 This is a schematic diagram of the overall structure of the jack body described in this utility model;

[0017] Figure 4 This is an assembly diagram of the electric pump, motor, and controller described in this utility model.

[0018] In the diagram: 1. Base; 2. Support column; 21. Reinforcing rod; 22. Hinge seat; 3. Jack body; 31. Base; 311. Outer casing oil inlet and return circuit; 312. Cylinder oil inlet and return circuit; 32. Cylinder; 33. Outer casing; 34. Piston rod; 35. Electric pump; 351. Left housing; 352. Right housing; 353. Hydraulic pump; 354. Motor; 355. Battery pack pin; 36. Battery pack; 4. Boom; 5. Roller; 6. Handle; 7. Controller; 71. Up button; 72. Start / Stop button; 73. Down button. Detailed Implementation

[0019] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. However, the description of the embodiments is not a limitation on the technical solution. Any formal but not substantive changes made based on the concept of this utility model should be considered within the protection scope of this utility model.

[0020] In the following description, all directional (or orientational) concepts involving up, down, left, right, front, and back refer to the position of the figure being described, and are intended to facilitate public understanding. Therefore, they should not be construed as a special limitation on the technical solution provided by this utility model.

[0021] See Figure 1 and Figure 2 This utility model relates to an electric crane structure, including a base 1, a support column 2, a jack body 3, and a boom 4. The lower end of the support column 2 is fixedly connected to the base 1, and the upper end is hinged to the boom 4. A pair of reinforcing rods 21 are also provided between the support column 2 and the base 1. The jack body 3 is hinged between the support column 2 and the boom 4 to provide power to the boom 4. Rollers 5 are provided at the bottom of the base 1, and a handle 6 for easy pushing and pulling is provided at the upper end of the support column 2. The jack body 3 includes a base 31, which is fixed to a hinge seat 22 located near the lower end of the support column 2. An outer sleeve 33 with an internal hydraulic cylinder 32 is vertically provided on the base 31, and an oil storage cavity is formed between the outer wall of the hydraulic cylinder 32 and the inner wall of the outer sleeve 33. A piston rod 34 is provided inside the hydraulic cylinder 32, and the top end of the piston rod 34 is hinged to the boom 4.

[0022] See Figure 3 and Figure 4Furthermore, the jack body 3 also includes an electric pump 35, which contains a hydraulic pump 353 and a motor 354 connected to the hydraulic pump 353 for driving its operation. The motor 354 is connected to a controller 7. The controller 7 is equipped with function buttons, including a start / stop button 72 for controlling the start and stop of the crane, a rise button 71 for raising the piston rod 34, and a fall button 73 for lowering the piston rod 34. The motor 354 is controlled by the start / stop button 72, driving the hydraulic pump 353 to work. The hydraulic pump 353 drives the piston rod 34 to move up and down within the cylinder 32 via an oil circuit, thereby driving the boom 4 to work. The controller 7 can be installed at any position on the jack body 3 or at other suitable positions on the crane, such as the base 1. Of course, for ease of operation, the controller 7 can also adopt a detachable structure. In this embodiment, the controller 7 can be a microcontroller or PLC, etc. Since the technology of controlling the motor operation based on button signals is common knowledge, it is omitted here.

[0023] Furthermore, the hydraulic pump 353 is located on one side of the outer casing 33 and its bottom is fixed to the base 31. The base 31 contains an outer casing inlet / outlet oil passage 311 connecting the outer casing 33 and the hydraulic pump 353, and a cylinder inlet / outlet oil passage 312 connecting the cylinder 32 and the hydraulic pump 353. The output shaft of the motor 354 is connected to the hydraulic pump 353, while the other end extends outward from the base 31. The electric pump 35 also includes a left housing 351 and a right housing 352, which are joined together to form a protective shell for housing the hydraulic pump 353 and the motor 354. In this embodiment, the controller 7 is located at the opening at the top of the protective shell, and the controller 7 has an up button 71, a start / stop button 72, and a down button 73 on its upper surface.

[0024] Furthermore, the jack body 3 also includes a battery pack 36 for supplying power to the controller 7 and the motor 354 in the electric pump 35. The protective shell has battery pack pins 355 mounted on its outer side, and the battery pack 36 is connected to these pins 355 via a mating connection, simplifying installation. The battery pack 36 is preferably a rechargeable lithium battery.

[0025] During operation, first press the start / stop button 72 to put the crane into working mode. Then, when it is necessary to control the piston rod 34 to rise, press the rise button 71 to send a signal to the controller 7. The controller 7 controls the motor 354 to rotate forward, which drives the hydraulic pump 353 to start. The hydraulic fluid is drawn from the outer casing 33 through the outer casing inlet / return oil passage 311 into the hydraulic pump 353, then through the cylinder inlet / return oil passage 312 into the base 31, and finally from the base 31 into the cylinder 32, causing the piston rod 34 to rise, thereby driving the crane to work. When it is necessary to control the jack to lower after the work is completed, press the lower button 73 to send a signal to the controller 7. The controller 7 controls the motor 354 to reverse, which drives the hydraulic pump 353 in reverse to draw the hydraulic fluid from the cylinder 32 into the base 31, then through the cylinder inlet / return oil passage 312 into the hydraulic pump 353, and finally through the inlet / return oil passage 311 back into the outer casing 33, causing the piston rod 34 to lower.

[0026] The crane of this invention can complete the required action by simply pressing the corresponding button when it needs to be raised or lowered, which greatly reduces the difficulty of operation, alleviates the labor intensity of the operators, and effectively improves the work efficiency, thus achieving the purpose of the invention.

Claims

1. An electric crane structure, comprising a base (1), a support column (2), a jack body (3), and a boom (4), wherein the lower end of the support column (2) is fixedly connected to the base (1), and the upper end is hinged to the boom (4), and the jack body (3) is hinged between the support column (2) and the boom (4) to provide power to the boom (4), wherein the jack body (3) comprises a base (31), an outer sleeve (33) fixedly mounted on the base (31) and having an internal hydraulic cylinder (32), and a piston rod (34) movable up and down within the hydraulic cylinder (32), characterized in that: The jack body (3) also includes an electric pump (35) and a battery pack (36). The electric pump (35) is connected to a controller (7). The controller (7) is equipped with function buttons, including a start / stop button (72) for switching the electric pump (35) on and off, a rise button (71) for raising the piston rod (34), and a fall button (73) for lowering the piston rod (34).

2. The electric crane structure according to claim 1, characterized in that: The electric pump (35) is equipped with a hydraulic pump (353) and a motor (354). The motor (354) is connected to the controller (7). The output shaft of the motor (354) is connected to the hydraulic pump (353) for transmission, while the other end extends outward from the base (31).

3. The electric crane structure according to claim 2, characterized in that: The hydraulic pump (353) is located on one side of the outer sleeve (33) and its bottom is fixed to the base (31). The base (31) has an outer sleeve inlet and return oil passage (311) connecting the outer sleeve (33) and the hydraulic pump (353) and an oil cylinder inlet and return oil passage (312) connecting the oil cylinder (32) and the hydraulic pump (353).

4. The electric crane structure according to claim 2, characterized in that: The electric pump (35) also includes a left housing (351) and a right housing (352), which are spliced ​​together to form a protective shell for covering the hydraulic pump (353) and the motor (354).

5. The electric crane structure according to claim 1, characterized in that: The controller (7) is detachably mounted on the top of the electric pump (35), and the controller (7) has the up button (71), the start / stop button (72) and the down button (73) on its upper surface.

6. The electric crane structure according to claim 2, characterized in that: The electric pump (35) has a battery pack pin (355) installed on its outer end face away from the base (31). The battery pack (36) is inserted into the battery pack pin (355) to supply power to the electric pump (35) and the controller (7).

7. The electric crane structure according to claim 1, characterized in that: The base (1) is provided with rollers (5) at the bottom, and the support column (2) is provided with a handle (6) at the top for easy pushing and pulling.

Images