Hydraulic winch with automatic rope releasing function

Abstract

The utility model relates to the field of hydraulic winches, and discloses a hydraulic winch with an automatic rope releasing function, which comprises a hydraulic motor, the right end of the hydraulic motor is provided with an output component, the left end of the hydraulic motor is connected with a pressure control valve block, and the pressure control valve block comprises an electromagnetic valve. Two groups of output shafts of the electromagnetic valve are respectively connected with a group of balance valves, the two groups of balance valves and the electromagnetic valve jointly form a group of balance loop, a pressure control valve is mounted on the outer wall of a connecting pipeline of the two groups of balance valves and the electromagnetic valve in parallel, a rotating speed control valve is mounted at the right end of the pressure control valve in series, and a pressure reducing valve is mounted outside the balance loop in parallel. According to the hydraulic motor, the pressure control valve block is arranged, and a rotating speed control valve in the pressure control module can be adjusted after lifting is completed, so that hydraulic oil can be controlled to be slowly discharged out of the hydraulic motor, and when the output shaft of the hydraulic motor is pulled by rotating in the axial direction, the output shaft of the hydraulic motor can slowly rotate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hydraulic winch especially relates to a hydraulic winch with automatic rope releasing function. BACKGROUND

[0002] The hydraulic winch is a kind of mechanical equipment with hydraulic system as power source, realizes the operation such as heavy lifting, descending, traction by the conversion of hydraulic energy and mechanical energy, commonly used to carry goods, since the output capacity of hydraulic system itself is very considerable, so it can realize large torque output by cooperating with gear set.

[0003] The existing traditional hoisting equipment generally has the function of lifting and lowering heavy objects, and the function is simple, only single lifting and lowering function can be carried out under the condition of driving input, and the hydraulic system is needed to drive actively when lifting and lowering, and the overall device consumes greatly when using, therefore, the hydraulic winch with automatic rope releasing function is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a hydraulic winch with automatic rope releasing function, which aims at improving the problem of "the existing hydraulic winch relies on hydraulic system to drive actively when lifting and lowering, and consumes greatly when using" in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a hydraulic winch with automatic rope releasing function, comprising a hydraulic motor, the right end of the hydraulic motor is provided with an output assembly, the left end of the hydraulic motor is connected with a pressure control valve block, the pressure control valve block comprises an electromagnetic valve, two groups of output shafts of the electromagnetic valve are respectively connected with a group of balance valves, two groups of the balance valves and the electromagnetic valve jointly constitute a group of balance loops, the pressure control valve is installed in parallel on the outer wall of the connecting pipeline of two groups of the balance valves and the electromagnetic valve, the speed control valve is installed in series on the right end of the pressure control valve, and the balance loop is externally installed in parallel with a pressure reducing valve.

[0006] As a further description of the above technical scheme:

[0007] The output assembly comprises a motor sleeve and a drum, and the motor sleeve is installed on the outer wall of the hydraulic motor output shaft.

[0008] As a further description of the above technical scheme:

[0009] The right end of the hydraulic motor output shaft is fixedly connected with a primary sun gear, the outer wall of the primary sun gear is engaged with a primary planetary gear, and the primary planetary gear is engaged with the inner wall of the drum.

[0010] As a further description of the above technical scheme:

[0011] The outer wall of the hydraulic motor output shaft is rotationally connected with a second sun gear, the outer wall of the second sun gear is installed with a first planetary carrier, and the first planetary gear is rotationally connected to the right surface of the first planetary carrier.

[0012] As a further description of the above technical solutions:

[0013] The left surface of the hydraulic motor is installed with a second planetary carrier, the right surface of the second planetary carrier is rotationally connected with a second planetary gear, and the second planetary gear and the roller are in meshing with each other.

[0014] As a further description of the above technical solutions:

[0015] The roller is installed at the end of the winch rocker arm through the fixing frame.

[0016] The utility model has the advantages of the following:

[0017] 1、the utility model discloses a pressure control valve block is set up, can adjust the speed control valve in the pressure control module after lifting is completed, so can control the slow discharge of hydraulic oil in the hydraulic motor, so when the hydraulic motor output shaft is pulled along the axial rotation, its output shaft can slowly rotate, so the rope hook can fall freely under the condition of no pressure with the help of the weight of goods, when the goods contact the ground, the whole device will stop the rope automatically, the whole device is more energy -conserving when using.

[0018] 2、the utility model discloses a pressure control module is set up, when the hydraulic motor appears the fault in use, still can change the discharge speed in the hydraulic motor through the adjustment of pressure control module, so can prevent the goods from falling suddenly, and the whole device is better in safety. DRAWINGS

[0019] Figure 1 It is the sectional view schematic drawing of the whole device in the utility model;

[0020] Figure 2 It is the internal structure schematic drawing of the pressure control valve block in the utility model.

[0021] LEGEND:

[0022] 1, pressure control valve block;2, hydraulic motor;3, second planetary carrier;4, motor cover;5, second planetary gear;6, first planetary carrier;7, second sun gear;8, roller;9, first sun gear;10, first planetary gear;11, pressure control valve;12, balance valve;13, speed control valve;14, pressure reducing valve;15, electromagnetic valve. CONCRETE IMPLEMENTATION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0024] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application. Figure 1 Figure 2 The present application provides an embodiment: a hydraulic winch with automatic rope releasing function, comprising a hydraulic motor 2 for providing power for the whole device, which can drive the hydraulic motor 2 to rotate by outputting hydraulic oil into the hydraulic motor 2 through the use of a pump station, the right end of the hydraulic motor 2 is provided with an output assembly for lifting articles, the left end of the hydraulic motor 2 is connected with a pressure control valve block 1 for limiting the liquid inlet of the hydraulic motor 2, the pressure control valve block 1 comprises an electromagnetic valve 15 for controlling the work of the whole pressure control valve block 1, the two groups of output shafts of the electromagnetic valve 15 are respectively connected with a group of balance valves 12, the balance valves 12 can ensure that the winch is not affected by the pressure fluctuation of the pump station, and keep stable up and down operation, the two groups of balance valves 12 and the electromagnetic valve 15 jointly form a balance loop, the pressure control valve 11 is installed in parallel on the outer wall of the connecting pipeline of the two groups of balance valves 12 and the electromagnetic valve 15, the pressure control valve 11 can ensure that the hydraulic motor 2 does not lose flow and pressure in normal operation, and ensure that oil can be input into the hydraulic motor 2 in time when the oil supplement function is executed, the right end of the pressure control valve 11 is connected in series with a speed control valve 13, the speed control valve 13 can control the speed of the winch when working without pressure, so as to limit the rotation speed of the hydraulic motor 2, the balance loop is externally connected in parallel with a pressure reducing valve 14, the pressure reducing valve 14 can balance the oil pressure, and prevent the whole device from being unable to start normally due to oil pressure fluctuation.

[0025] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application. Figure 1 Figure 2 ​​, the output assembly comprises a motor sleeve 4 and a roller 8, the outer wall of the roller 8 is wound with a steel wire, the rotation of the roller 8 can drive the steel wire to be wound or unwound, the motor sleeve 4 is installed on the outer wall of the output shaft of the hydraulic motor 2, the right end of the output shaft of the hydraulic motor 2 is fixedly connected with a first sun gear 9, when the output shaft of the hydraulic motor 2 rotates, the first sun gear 9 is driven to rotate synchronously, the outer wall of the first sun gear 9 is engaged with a first planetary gear 10, the first planetary gear 10 is engaged with the inner wall of the roller 8, when the first sun gear 9 rotates, it drives the first planetary gear 10 to rotate through the engagement, and since the first planetary gear 10 is also engaged with the inner wall of the roller 8, the first planetary gear 10 is forced to revolve around the first sun gear 9, the outer wall of the output shaft of the hydraulic motor 2 is rotatably connected with a second sun gear 7 for transmitting motion, the outer wall of the second sun gear 7 is installed with a first planetary carrier 6 for supporting the motion of the first planetary gear 10, and the first planetary gear 10 is rotatably connected to the right surface of the first planetary carrier 6.

[0026] With reference to Figure 1 and Figure 2 , the left surface of the hydraulic motor 2 is installed with a second planetary carrier 3 for supporting the second planetary gear 5, the right surface of the second planetary carrier 3 is rotatably connected with the second planetary gear 5 for driving the roller 8 to rotate, the second planetary gear 5 and the roller 8 are engaged with each other, and the rotation of the second planetary gear 5 can drive the roller 8 to rotate, and the roller 8 is installed at the end of the winch rocker arm through the fixing frame.

[0027] Working principle: when the whole device is winding, the first sun gear 9 is driven to rotate by the power provided by the hydraulic motor 2, the rotation of the first sun gear 9 drives the first planetary gear 10 to rotate, and when the first planetary gear 10 rotates, it is limited by the roller 8 to revolve around the first sun gear 9, the revolution of the first planetary gear 10 drives the first planetary carrier 6 to rotate, the rotation of the first planetary carrier 6 drives the second sun gear 7 to rotate, the rotation of the second sun gear 7 drives the second planetary gear 5 to rotate, and the rotation of the second planetary gear 5 drives the roller 8 to rotate, thereby realizing the winding operation.

[0028] When unwinding, the electromagnetic valve 15 can be adjusted to control the relief valve 14 to limit the oil discharge speed of the hydraulic motor 2, so as to limit the angular velocity of the output shaft of the hydraulic motor 2, and by limiting the angular velocity of the output shaft of the hydraulic motor 2, the angular velocity of the roller 8 can be limited, so that when unwinding, the steel wire can be driven to rotate the roller 8 by the weight of the object, without the need for the hydraulic motor 2 to work actively, which is more energy-saving in use.

[0029] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A hydraulic winch with automatic rope paying-out function, comprising a hydraulic motor (2), characterized in that: The right end of the hydraulic motor (2) is provided with an output assembly, the left end of the hydraulic motor (2) is connected with a pressure control valve block (1), the pressure control valve block (1) comprises an electromagnetic valve (15), two groups of output shafts of the electromagnetic valve (15) are connected with a group of balance valves (12) respectively, two groups of the balance valves (12) and the electromagnetic valve (15) jointly constitute a group of balance circuits, the pressure control valve (11) is installed in parallel on the outer wall of the connecting pipeline of the two groups of balance valves (12) and the electromagnetic valve (15), the right end of the pressure control valve (11) is connected in series with a rotating speed control valve (13), and the balance circuit is externally connected in parallel with a pressure reducing valve (14).

2. The hydraulic winch with automatic rope releasing function according to claim 1, characterized in that: The output assembly comprises a motor sleeve (4) and a roller (8), and the motor sleeve (4) is installed on the outer wall of the output shaft of the hydraulic motor (2).

3. The hydraulic winch with automatic rope releasing function according to claim 2, characterized in that: The right end of the output shaft of the hydraulic motor (2) is fixedly connected with a primary sun gear (9), the outer wall of the primary sun gear (9) is engaged with a primary planetary gear (10), and the primary planetary gear (10) is engaged with the inner wall of the roller (8).

4. The hydraulic winch with automatic rope releasing function according to claim 3, characterized in that: The outer wall of the output shaft of the hydraulic motor (2) is rotatably connected with a secondary sun gear (7), the outer wall of the secondary sun gear (7) is installed with a primary planet carrier (6), and the primary planetary gear (10) is rotatably connected to the right surface of the primary planet carrier (6).

5. The hydraulic winch with automatic rope releasing function according to claim 4, characterized in that: The left surface of the hydraulic motor (2) is installed with a secondary planet carrier (3), the right surface of the secondary planet carrier (3) is rotatably connected with a secondary planetary gear (5), and the secondary planetary gear (5) and the roller (8) are engaged with each other.

6. The hydraulic winch with automatic rope releasing function according to claim 5, characterized in that: The roller (8) is installed at the end of the winch rocker arm through a fixing frame.

Images