Hydraulic adjusting device of crane

Abstract

The utility model discloses a hydraulic adjusting device for a crane, and relates to the technical field of hydraulic systems. The device comprises a hydraulic oil tank, a guide pipe rotationally penetrates through the hydraulic oil tank, the guide pipe communicates with a plurality of branch pipes which are annularly distributed, and a driving part used for driving the guide pipe to rotate is arranged on the hydraulic oil tank; the water tank is arranged on one side of the hydraulic oil tank, an electric heating wire is arranged in the water tank, and the two ends of the water tank communicate with a conveying pipe and a backflow pipe correspondingly; the stirring pipe fitting composed of the guide pipe and the branch pipes is rotationally arranged in the hydraulic oil tank, water in the water tank is heated, conveyed into the stirring pipe fitting and then flows back into the water tank, so that hot water circulation is formed, when hot water is subjected to water flow circulation, the stirring pipe fitting stirs the hydraulic oil, and the hot water conducts heat to the hydraulic oil; and effective heat exchange heating is conducted on hydraulic oil, it is guaranteed that the hydraulic oil can flow smoothly, oil supply is stable, and it is guaranteed that the crane can work normally.

Description

Technical Field

[0001] This application relates to the technical field of hydraulic systems, and particularly to a hydraulic regulating device for a crane. Background Art

[0002] A crane is a lifting and handling instrument widely used in ports, construction sites, workshops and other places. It is a unified name for lifting machinery. The use of a crane is for lifting equipment, emergency rescue, hoisting, rescue, etc. There are many types of cranes, basically covering various fields and various places;

[0003] When a crane is in operation, most components are controlled by a hydraulic system. Hydraulic oil is an important component medium in the hydraulic system. In cold winter weather, due to the low temperature, the viscosity of the hydraulic oil in the hydraulic oil tank is large, it is not easy to flow, and the oil supply pressure is unstable, affecting the operation of the crane. Therefore, this application proposes a hydraulic regulating device for a crane. Utility Model Content

[0004] The purpose of this application is: to solve the problems in the above background art, this application provides a hydraulic regulating device for a crane.

[0005] This application specifically adopts the following technical solutions to achieve the above purpose:

[0006] A hydraulic regulating device for a crane, comprising:

[0007] A hydraulic oil tank, through which a conduit rotates. A plurality of branch pipes distributed in a ring are communicated with the conduit. A driving member for driving the conduit to rotate is arranged on the hydraulic oil tank;

[0008] A water tank is arranged on one side of the hydraulic oil tank. An electric heating wire is arranged in the water tank. The two ends of the water tank are respectively communicated with a delivery pipe and a return pipe. The free ends of the delivery pipe and the return pipe are respectively communicated with the two ends of the conduit through rotary joints. A water delivery member is arranged on the delivery pipe.

[0009] Further, the driving member includes a bevel gear disk fixed on the conduit. A motor is arranged on the hydraulic oil tank. A first bevel gear meshing with the teeth of the bevel gear disk is fixed on the output shaft of the motor.

[0010] Further, the water delivery member includes a piston cylinder arranged on the hydraulic oil tank and communicated with the delivery pipe. A piston rod is slidably inserted into the piston cylinder. One-way valves are arranged at both ends of the delivery pipe and located in the piston cylinder. A linkage member is arranged on the hydraulic oil tank. When the conduit rotates, the linkage member drives the piston rod to slide reciprocally.

[0011] Furthermore, the linkage member includes a shaft rotatably arranged on the hydraulic oil tank, one end of the shaft is fixed with a second bevel gear meshing with the bevel gear teeth, one end of the shaft is fixed with a disc, and a support rod is hinged between the disc and the piston rod.

[0012] Furthermore, the branch pipe includes a spiral flat pipe, and both ends of the spiral flat pipe are connected to the conduit via branch pipes.

[0013] Furthermore, a spiral guide plate is fixedly provided on the inner wall of the conduit.

[0014] Furthermore, the outer surface of the conduit is provided with a plurality of fins in an array along its length direction.

[0015] Furthermore, the electric heating wire is constructed in a continuously bent S-shape.

[0016] The beneficial effects of this application are as follows:

[0017] In this application, a stirring pipe composed of a conduit and a branch pipe is rotatably arranged in the hydraulic oil tank. The water in the water tank is heated and then transported to the stirring pipe, and then flows back to the water tank, thereby forming a hot water circulation. When the hot water circulates, the stirring pipe stirs the hydraulic oil, and the hot water transfers heat to the hydraulic oil, effectively heats the hydraulic oil through heat exchange, and regulates the temperature of the hydraulic oil to ensure that the hydraulic oil can flow smoothly, so that the oil supply of the crane hydraulic system is stable, and the crane can work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of this application;

[0019] Figure 2 It is a sectional view of the three-dimensional structure of this application;

[0020] Figure 3 This is another three-dimensional structural cross-sectional view of the present application;

[0021] Figure 4 It is a partial three-dimensional structural diagram of this application;

[0022] Figure 5 It is a sectional view of the three-dimensional structure of part of this application;

[0023] Reference numerals: 1, hydraulic oil tank; 2, conduit; 3, branch pipe; 4, driving member; 5, water tank; 6, electric heating wire; 7, delivery pipe; 8, return pipe; 9, water delivery member; 10, spiral guide plate; 11, fin; 301, spiral flat tube; 302, branch tube; 401, bevel gear disc; 402, motor; 403, first bevel gear; 901, piston cylinder; 902, piston rod; 903, check valve; 904, linkage member; 9041, shaft rod; 9042, second bevel gear; 9043, disc; 9044, support rod. Detailed implementation manners

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

[0025] As Figures 1 - 5 shown, a crane hydraulic adjustment device proposed in an embodiment of the present application includes:

[0026] A hydraulic oil tank 1, in which hydraulic oil for the crane hydraulic oil circuit system is placed. A conduit 2 rotatably penetrates through it. A number of branch pipes 3 distributed in a ring are communicated with the conduit 2. A driving member 4 for driving the rotation of the conduit 2 is arranged on the hydraulic oil tank 1. The conduit 2 and the number of branch pipes 3 form a stirring member. By driving the rotation of the conduit 2 through the driving member 4, the stirring member stirs the hydraulic oil, improving the fluidity of the hydraulic oil;

[0027] A water tank 5, arranged on one side of the hydraulic oil tank 1. Water is placed in the water tank 5. An electric heating wire 6 is arranged in the water tank 5. After the electric heating wire 6 is powered on, it can heat the water in the water tank 5. The two ends of the water tank 5 are respectively communicated with a delivery pipe 7 and a return pipe 8. The free ends of the delivery pipe 7 and the return pipe 8 are respectively communicated with the two ends of the conduit 2 through a rotary joint. A water delivery member 9 is arranged on the delivery pipe 7. In cold winter weather, before starting the crane, the electric heating wire 6 is powered on to heat the water. When the water is heated to a certain temperature (a temperature controller electrically connected to the electric heating wire 6 is arranged on the water tank 5), the heated hot water is conveyed into the conduit 2 through the delivery pipe 7 by the water delivery member 9. The hot water flows through the branch pipes 3 when flowing in the conduit 2, and finally returns to the water tank 5 through the return pipe 8, thus forming a water cycle. When the hot water flows, it exchanges heat to the conduit 2 and the branch pipes 3, and finally exchanges heat to the hydraulic oil, thereby heating the hydraulic oil. During the heat exchange process, the driving member 4 drives the rotation of the conduit 2, so that when the conduit 2 and the branch pipes 3 exchange heat and heat the hydraulic oil, they can also stir the hydraulic oil. Under the action of stirring, and the heat is exchanged from the hydraulic oil, so that the hydraulic oil can be effectively heat-exchanged and heated, ensuring that the hydraulic oil can flow smoothly, making the oil supply stable, and ensuring that the crane can work normally;

[0028] In this solution, a stirring pipe fitting composed of a conduit 2 and a branch pipe 3 is rotatably arranged in a hydraulic oil tank 1. After heating the water in a water tank 5, it is conveyed into the stirring pipe fitting and then flows back into the water tank 5, thus forming a hot water circulation. When the hot water circulates, the stirring pipe fitting stirs the hydraulic oil, and the hot water conducts heat to the hydraulic oil, effectively exchanging heat and heating the hydraulic oil, regulating the temperature of the hydraulic oil, ensuring the smooth flow of the hydraulic oil, making the oil supply of the crane hydraulic system stable, and ensuring the normal operation of the crane.

[0029] As Figure 4 shown, in some embodiments, the driving member 4 includes a bevel gear disk 401 fixedly arranged on the conduit 2. A motor 402 is arranged on the hydraulic oil tank 1, and a first bevel gear 403 meshing with the teeth of the bevel gear disk 401 is fixedly arranged on the output shaft of the motor 402. When the motor 402 does work, its output shaft drives the first bevel gear 403 to rotate. Under the meshing of the teeth of the first bevel gear 403 and the bevel gear disk 401, the conduit 2 is driven to rotate, and the conduit 2 can be stably rotated by the meshing of the teeth of the first bevel gear 403 and the bevel gear disk 401 without affecting the normal circulation of the hot water.

[0030] As Figure 3 shown, in some embodiments, the water delivery member 9 includes a piston cylinder 901 arranged on the hydraulic oil tank 1 and communicated with a delivery pipe 7. Preferably, the delivery pipe 7 is divided into two sections. The first section is communicated with the end of the piston cylinder 901, and the second section is communicated with the outer peripheral side wall of the piston cylinder 901. A piston rod 902 is slidably inserted into the piston cylinder 901. One-way valves 903 are arranged at both ends of the delivery pipe 7 and on the piston cylinder 901. The two one-way valves 903 are respectively located on the two sections of the delivery pipe 7. One one-way valve 903 restricts the hot water to only flow from the first section of the delivery pipe 7 into the piston cylinder 901 and not in the reverse direction, and the other one-way valve 903 restricts the hot water to only flow from the piston cylinder 901 into the second section of the delivery pipe 7 and not in the reverse direction. A linkage member 904 is arranged on the hydraulic oil tank 1. When the conduit 2 rotates, the linkage member 904 drives the piston rod 902 to reciprocate. When the conduit 2 rotates, the linkage member 904 drives the piston rod 902 to reciprocate. When the piston rod 902 reciprocates, the hot water in the water tank 5 is conveyed into the conduit 2 through the delivery pipe 7 under the cooperation of the two one-way valves 903.

[0031] As Figure 3As shown, in some embodiments, the linkage member 904 includes a shaft 9041 rotatably arranged on the hydraulic oil tank 1, one end of the shaft 9041 is fixedly provided with a second bevel gear 9042 that meshes with the teeth of the bevel gear plate 401, and one end of the shaft 9041 is fixedly provided with a disc 9043, and a support rod 9044 is hinged between the disc 9043 and the piston rod 902. In order to make the solution more reasonable, it should be noted that the end of the support rod 9044 away from the piston rod 902 is eccentrically hinged to the disc 9043. When the catheter 2 rotates, the bevel gear 9042 is engaged with the teeth of the bevel gear plate 401. The teeth of the disk 401 and the second bevel gear 9042 are engaged, thereby driving the shaft 9041 and the disk 9043 to rotate synchronously. Since the support rod 9044 is eccentrically hinged to the disk 9043, when the disk 9043 rotates, the support rod 9044 pulls or resists the piston rod 902, thereby driving the piston rod 902 to slide back and forth. The setting of the linkage member 904 allows the water delivery member 9 and the conduit 2 to share a motor 402 as a driving force. When the conduit 2 rotates, real-time water supply can be achieved, thereby improving practicality.

[0032] like Figure 4 and Figure 5 As shown, in some embodiments, the branch pipe 3 includes a spiral flat tube 301, and both ends of the spiral flat tube 301 are connected to the conduit 2 with a branch pipe 302. The structure of the spiral flat tube 301 can increase the contact area between the branch pipe 3 and the hydraulic oil, improve the heat exchange efficiency, and at the same time, better stir the hydraulic oil during stirring. Its spiral structure can improve the stirring effect and heat exchange effect while reducing the resistance stress of stirring, thereby improving practicality.

[0033] like Figure 5 As shown, in some embodiments, a spiral guide plate 10 is fixedly provided on the inner wall of the conduit 2. The spiral guide plate 10 has two advantages. First, it can guide the hot water to flow in a spiral direction, avoiding straight flow along the conduit 2, slowing down the flow speed, increasing its residence time, and allowing it to fully exchange heat. Second, its spiral structure will add a certain resistance to the flow of hot water. By utilizing this resistance, the hot water can be diverted and circulated more smoothly from the conduit 2 to the branch pipe 3, thereby improving practicality.

[0034] like Figure 5 As shown, in some embodiments, the outer surface of the conduit 2 is provided with a plurality of fins 11 in an array along its length direction. The provided fins 11 are used to increase the contact area between the conduit 2 and the hydraulic oil, thereby improving the heat exchange efficiency.

[0035] like Figure 3 As shown, in some embodiments, the electric heating wire 6 is constructed into a continuously bent S-shape. By constructing the electric heating wire 6 into a continuously bent S-shape, the contact area between the electric heating wire 6 and the clean water is increased, the heating efficiency is improved, and the heating response is faster.

[0036] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present application. Various modifications to these embodiments will be readily 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 application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydraulic adjustment device for a crane, characterized in that, Comprising: A hydraulic oil tank (1) through which a conduit (2) rotatably penetrates. A plurality of branch pipes (3) distributed in a ring are communicated with the conduit (2). A driving member (4) for driving the rotation of the conduit (2) is provided on the hydraulic oil tank (1); A water tank (5) is arranged on one side of the hydraulic oil tank (1). An electric heating wire (6) is arranged in the water tank (5). The two ends of the water tank (5) are respectively communicated with a delivery pipe (7) and a return pipe (8). The free ends of the delivery pipe (7) and the return pipe (8) are respectively communicated with the two ends of the conduit (2) through rotary joints. A water delivery member (9) is arranged on the delivery pipe (7).

2. The crane hydraulic adjustment device according to claim 1, wherein The driving member (4) includes a bevel gear disk (401) fixedly arranged on the conduit (2). A motor (402) is provided on the hydraulic oil tank (1). A first bevel gear (403) meshing with the teeth of the bevel gear disk (401) is fixedly arranged on the output shaft of the motor (402).

3. The crane hydraulic adjustment device according to claim 2, characterized in that, The water delivery member (9) includes a piston cylinder (901) arranged on the hydraulic oil tank (1) and communicated with the delivery pipe (7). A piston rod (902) is slidably inserted into the piston cylinder (901). Check valves (903) are arranged at both ends of the delivery pipe (7) and located at both ends of the piston cylinder (901). A linkage member (904) is provided on the hydraulic oil tank (1). When the conduit (2) rotates, the linkage member (904) drives the piston rod (902) to reciprocate.

4. The crane hydraulic adjustment device according to claim 3, characterized in that, The linkage member (904) includes a shaft rod (9041) rotatably arranged on the hydraulic oil tank (1). A second bevel gear (9042) meshing with the teeth of the bevel gear disk (401) is fixedly arranged at one end of the shaft rod (9041). A disk (9043) is fixedly arranged at one end of the shaft rod (9041). A support rod (9044) is hinged between the disk (9043) and the piston rod (902).

5. The crane hydraulic adjustment device according to claim 1, characterized in that, The branch pipe (3) includes a spiral flat pipe (301). Branch pipes (302) are connected to both ends of the spiral flat pipe (301) and the conduit (2).

6. The crane hydraulic adjustment device according to claim 1, characterized in that, A spiral guide plate (10) is fixedly arranged on the inner wall of the conduit (2).

7. The crane hydraulic adjustment device according to claim 1, characterized in that, A plurality of fins (11) are arranged on the outer surface of the conduit (2) in an array along its length direction.

8. The crane hydraulic adjustment device according to claim 1, characterized in that, The electric heating wire (6) is configured as a continuously bent S shape.

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