A double winch material conveying hydraulic control device

Abstract

The present invention discloses a double winch material conveying hydraulic control device, which relates to the technical field of hydraulic equipment. The double winch material conveying hydraulic control device comprises: a first winch, a second winch, a transmission line, a first hydraulic motor, a second hydraulic motor, a first control valve group, a second control valve group, a first electric proportional multi-way valve and a second electric proportional multi-way valve. The first control valve group is used to control the action of the first hydraulic motor and the brake of the first winch; the second control valve group is used to control the action of the second hydraulic motor and the brake of the second winch; the first electric proportional multi-way valve is used to control the flow direction of the hydraulic oil entering the first control valve group; the second electric proportional multi-way valve is used to control the flow direction of the hydraulic oil entering the second control valve group. The double winch material conveying hydraulic control device in the present invention can realize the automatic transmission of materials between the two winches, reduce the number of operators entering the well to transport materials, and reduce the danger in the process of supporting material handling.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic equipment, and more specifically to a double winch material conveying hydraulic control device. Background Art

[0002] In the prior art, as the rapid excavation and anchoring equipment sets were put into production in the coal mining industry, the excavation speed was effectively improved, but the problem of excavation and support imbalance also emerged. The excavation speed did not match the support speed, and the support speed was slow, which affected the excavation speed.

[0003] The main reasons affecting the support speed include: insufficient supply of materials required for support, the coal mine excavation working face is not allowed to exceed a limited number of people, multiple anchor drilling rigs need to work at the same time, and insufficient number of personnel leads to insufficient personnel for transporting support materials; in addition, the existing transportation methods have safety hazards, the coal mine working environment is harsh, the field of vision is limited, and the space is small. The existing manual handling of materials has the risk of jamming, accidental collision, and pinching. The handling of materials on and off the construction equipment increases the safety accidents of falling.

[0004] In summary, how to reduce the danger in the process of supporting material handling is a problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a double-winch material conveying hydraulic control device, which can realize the automatic transmission of materials between the two winches, reduce the number of workers entering the underground to transport materials, and is conducive to remote control. There is no need to manually operate the first electric proportional multi-way valve and the second electric proportional multi-way valve on site, thereby reducing the danger in the support material handling process.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A double winch material conveying hydraulic control device, comprising:

[0008] First winch;

[0009] a second winch, spaced apart from the first winch;

[0010] A transmission line, one end of which is wound around the first winch, and the other end of which is wound around the second winch, and the transmission line is fixed with a bearing member for carrying materials;

[0011] A first hydraulic motor is used to drive the first winch to move;

[0012] A second hydraulic motor is used to drive the second winch to move;

[0013] a first control valve group connected to the first hydraulic motor and the first winch, the first control valve group being used to control the action of the first hydraulic motor and the brake of the first winch;

[0014] a second control valve group connected to the second hydraulic motor and the second winch, the second control valve group being used to control the action of the second hydraulic motor and the brake of the second winch;

[0015] a first electric proportional multi-way valve, connected to the first control valve group, and used for controlling the flow direction of the hydraulic oil entering the first control valve group;

[0016] The second electric proportional multi-way valve is connected to the second control valve group and is used to control the flow direction of the hydraulic oil entering the second control valve group.

[0017] Optionally, the first control valve group is provided with a first back-pressure hydraulic valve, the first back-pressure hydraulic valve is located in the oil return circuit when the first winch releases the rope, and the first back-pressure hydraulic valve is used to adjust the traction force of the transmission line;

[0018] The second control valve group is provided with a second back-pressure hydraulic valve, and the second back-pressure hydraulic valve is located in the return oil circuit when the second winch releases the rope. The second back-pressure hydraulic valve is used to adjust the traction force of the transmission rope.

[0019] Optionally, the first back-pressure hydraulic valve and the second back-pressure hydraulic valve are both overflow valves.

[0020] Optionally, it also includes an oil replenishment circuit, which is provided with a first pressure reducing valve and a second pressure reducing valve, the oil inlet of the first pressure reducing valve is connected to the pump outlet, and the oil outlet of the first pressure reducing valve is connected to the first control valve group; the oil inlet of the second pressure reducing valve is connected to the pump outlet, and the oil outlet of the second pressure reducing valve is connected to the second control valve group.

[0021] Optionally, the first control valve group is provided with a first one-way valve and a second one-way valve connected in series, the oil inlet of the first one-way valve and the oil inlet of the second one-way valve are both connected to the oil outlet of the first pressure reducing valve, and the oil outlet of the first one-way valve and the oil outlet of the second one-way valve are respectively connected to two oil circuit connection ports of the first hydraulic motor;

[0022] The second control valve group is provided with a third one-way valve and a fourth one-way valve connected in series, the oil inlet of the third one-way valve and the oil inlet of the fourth one-way valve are both connected to the oil outlet of the second pressure reducing valve, and the oil outlet of the third one-way valve and the oil outlet of the fourth one-way valve are respectively connected to the two oil circuit connection ports of the second hydraulic motor.

[0023] Optionally, the first control valve group is provided with a first one-way sequence valve and a third pressure reducing valve. When the first winch is passively rotated, the oil inlet pressure of the oil inlet circuit of the first control valve group is less than the opening pressure of the first one-way sequence valve, and the hydraulic oil in the oil inlet circuit of the first control valve group is connected to the first brake controller of the first winch through the third pressure reducing valve.

[0024] The second control valve group is provided with a second one-way sequence valve and a fourth pressure reducing valve. When the second winch rotates passively, the oil inlet pressure of the oil inlet circuit of the second control valve group is less than the opening pressure of the second one-way sequence valve, and the hydraulic oil in the oil inlet circuit of the second control valve group is connected to the second brake controller of the second winch via the fourth pressure reducing valve.

[0025] Optionally, the oil outlet of the third pressure reducing valve is connected to the first brake controller via a first shuttle valve, one of the oil inlets of the first shuttle valve is connected to the first external oil circuit, and the other oil inlet is connected to the oil outlet of the third pressure reducing valve;

[0026] The oil outlet of the fourth pressure reducing valve is connected to the second brake controller through a second shuttle valve, one of the oil inlets of the second shuttle valve is connected to the second external oil circuit, and the other oil inlet is connected to the oil outlet of the fourth pressure reducing valve.

[0027] Optionally, the first control valve group further includes a first reversing valve connected to the first external oil circuit, and an oil inlet and an oil outlet of the first reversing valve are respectively connected to two oil circuit connection ports of the first hydraulic motor; the hydraulic oil in the first external oil circuit flows through the first reversing valve in one way, and flows through the first shuttle valve and the first brake controller in the other way in sequence;

[0028] The second control valve group also includes a second reversing valve connected to the second external oil circuit, and the oil inlet and oil outlet of the second reversing valve are respectively connected to the two oil circuit connection ports of the first hydraulic motor; the hydraulic oil in the second external oil circuit flows through the second reversing valve in one way, and flows through the second shuttle valve and the second brake controller in turn in the other way.

[0029] Optionally, a remote control device for remote control is also included, and the first electric proportional multi-way valve and the second electric proportional multi-way valve are both connected to the remote control device, and the remote control device is used to remotely control the actions of the first electric proportional multi-way valve and the second electric proportional multi-way valve.

[0030] Optionally, both oil circuit connection ports of the first hydraulic motor and both oil circuit connection ports of the second hydraulic motor are connected to overflow valves.

[0031] In the process of using the double-winch material conveying hydraulic control device provided by the present invention, by controlling one of the first winch and the second winch to actively rotate and the other to passively rotate, one end of the transmission line is wound and the other end is released, thereby driving the bearing parts on the transmission line to move and realizing the transportation of materials.

[0032] In the process of controlling the rotation of the first winch, it is necessary to control the flow direction of the hydraulic oil entering the first control valve group through the first electric proportional multi-way valve, and then control the rotation of the first hydraulic motor through the first control valve group, and the first hydraulic motor drives the first winch to rotate; in the process of controlling the rotation of the second winch, it is necessary to control the flow direction of the hydraulic oil entering the second control valve group through the second electric proportional multi-way valve, and then control the rotation of the second hydraulic motor through the second control valve group, and the second hydraulic motor drives the second winch to rotate.

[0033] Compared with the prior art, the double-winch material conveying hydraulic control device in the present invention can realize automatic transmission of materials between the two winches, reducing the number of workers entering the well to transport materials. The setting of the first electric proportional multi-way valve and the second electric proportional multi-way valve is conducive to remote control, and there is no need to manually operate the first electric proportional multi-way valve and the second electric proportional multi-way valve on site, thereby reducing the danger in the process of supporting material handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0035] Figure 1 It is a structural schematic diagram of a specific embodiment 1 of the double winch material conveying hydraulic control device provided by the present invention;

[0036] Figure 2 This is a structural schematic diagram of a specific embodiment 2 of the double winch material conveying hydraulic control device provided by the present invention.

[0037] Figure 1-2 middle:

[0038] 1 is the first winch, 1' is the second winch;

[0039] 2 is a transmission line, 21 is a carrier;

[0040] 3 is a first hydraulic motor, 3' is a second hydraulic motor;

[0041] 4 is the first control valve group, 41 is the first back pressure hydraulic valve, 42 is the first one-way valve, 43 is the second one-way valve, 44 is the first one-way sequence valve, 45 is the third pressure reducing valve, 46 is the first shuttle valve, 47 is the first external oil circuit, 48 is the first reversing valve, 491 is the third overflow valve, 492 is the fourth overflow valve, 4' is the second control valve group, 41' is the second back pressure hydraulic valve, 42' is the third one-way valve, 43' is the fourth one-way valve, 44' is the second one-way sequence valve, 45' is the fourth pressure reducing valve, 46' is the second shuttle valve, 47' is the second external oil circuit, 48' is the second reversing valve, 491' is the first overflow valve, 492' is the second overflow valve;

[0042] 5 is a first electric proportional multi-way valve, 5' is a second electric proportional multi-way valve;

[0043] 6 is a first pressure reducing valve, and 6' is a second pressure reducing valve. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] The core of the present invention is to provide a double-winch material conveying hydraulic control device, which can realize the automatic transmission of materials between the two winches, reduce the number of workers entering the well to transport materials, and is conducive to remote control. There is no need to manually operate the first electric proportional multi-way valve and the second electric proportional multi-way valve on site, thereby reducing the danger in the process of supporting material handling.

[0046] Please refer to Figure 1-Figure 2 .

[0047] The present specific embodiment discloses a double-winch material conveying hydraulic control device, comprising: a first winch 1; a second winch 1', which is spaced apart from the first winch 1; a transmission line 2, one end of which is wound around the first winch 1, and the other end of which is wound around the second winch 1', and the transmission line 2 is fixed with a bearing 21 for carrying materials; a first hydraulic motor 3, which is used to drive the first winch 1 to move; a second hydraulic motor 3', which is used to drive the second winch 1' to move; a first control valve group 4, which is connected to the first hydraulic motor 3 and the first winch 1, and the first control valve group 4 is connected to the first hydraulic motor 3 and the first winch 1. The valve group 4 is used to control the action of the first hydraulic motor 3 and the braking of the first winch 1; the second control valve group 4' is connected to the second hydraulic motor 3' and the second winch 1', and the second control valve group 4' is used to control the action of the second hydraulic motor 3' and the braking of the second winch 1'; the first electric proportional multi-way valve 5 is connected to the first control valve group 4, and is used to control the flow direction of the hydraulic oil entering the first control valve group 4; the second electric proportional multi-way valve 5' is connected to the second control valve group 4', and is used to control the flow direction of the hydraulic oil entering the second control valve group 4'.

[0048] The transmission line 2 mentioned in this specific embodiment can be a steel wire rope, or other structures that meet the requirements, which are determined according to actual conditions. The bearing member 21 can be a tray hung on the steel wire rope and fixed relative to the steel wire rope, and the material is placed in the tray.

[0049] In the process of using the double-winch material conveying hydraulic control device provided in this specific embodiment, one of the first winch 1 and the second winch 1' can be controlled to actively rotate and the other can be controlled to passively rotate, so that one end of the transmission line 2 is wound and the other end is released, thereby causing the carrier 21 on the transmission line 2 to be driven to move, thereby realizing the transportation of materials. During the transportation process, the first electric proportional multi-way valve 5 and the second electric proportional multi-way valve 5' can be controlled, thereby controlling the first control valve group 4 and the second control valve group 4', so that the first hydraulic motor 3 and the second hydraulic motor 3' can be synchronously stopped to realize the suspension of materials.

[0050] In the process of controlling the rotation of the first winch 1, it is necessary to control the flow direction of the hydraulic oil entering the first control valve group 4 through the first electric proportional multi-way valve 5, and then control the rotation of the first hydraulic motor 3 through the first control valve group 4, and the first hydraulic motor 3 drives the first winch 1 to rotate; in the process of controlling the rotation of the second winch 1', it is necessary to control the flow direction of the hydraulic oil entering the second control valve group 4' through the second electric proportional multi-way valve 5', and then control the rotation of the second hydraulic motor 3' through the second control valve group 4', and the second hydraulic motor 3' drives the second winch 1' to rotate.

[0051] Compared with the prior art, the double winch material conveying hydraulic control device in this specific embodiment can realize the automatic transmission of materials between the two winches, reducing the number of workers entering the underground to transport materials. The setting of the first electric proportional multi-way valve 5 and the second electric proportional multi-way valve 5' is conducive to remote control, and there is no need to manually operate the first electric proportional multi-way valve 5 and the second electric proportional multi-way valve 5' on site, thereby reducing the danger in the process of supporting material handling.

[0052] In a specific embodiment, if Figure 2 As shown, the first control valve group 4 is provided with a first back-pressure hydraulic valve 41, which is located in the oil return circuit when the first winch 1 releases the rope, and is used to adjust the traction force of the transmission line 2;

[0053] The second control valve group 4' is provided with a second back-pressure hydraulic valve 41', which is located in the oil return circuit when the second winch 1' releases the rope, and is used to adjust the traction force of the transmission rope.

[0054] In the specific use process, when Figure 2 In the process in which the first winch 1 actively rotates and the second winch 1' passively rotates, one end of the transmission line 2 is wound around the first winch 1, and the other end is released by the second winch 1'. In order to keep the transmission line 2 in a taut state at all times, the second winch 1' is in a passive rotating state. During this process, the hydraulic oil of the second hydraulic motor 3' flows out from the C port to the second back pressure hydraulic valve 41'. By adjusting the second back pressure hydraulic valve 41', the pressure in the outflow pipeline of the second hydraulic motor 3' can be adjusted, thereby adjusting the back pressure during the passive rotation of the second winch 1'. The tension of the transmission line 2 is determined by the back pressure received by the second winch 1' during its rotation process, and the rotation speed of the first winch 1 determines the transmission speed of the material on the transmission line 2.

[0055] when Figure 2 In the process in which the first winch 1 rotates passively and the second winch 1' actively rotates, one end of the transmission line 2 is wound around the second winch 1', and the other end is released by the first winch 1. In order to keep the transmission line 2 in a taut state at all times, the first winch 1 is in a state of passive rotation. During this process, the hydraulic oil of the first hydraulic motor 3 flows out from the C port to the first back-pressure hydraulic valve 41. By adjusting the first back-pressure hydraulic valve 41, the pressure in the outflow pipeline of the first hydraulic motor 3 can be adjusted, thereby adjusting the back pressure during the passive rotation of the first winch 1. The tension of the transmission line 2 is determined by the back pressure received by the first winch 1 during its rotation process, and the rotation speed of the second winch 1' determines the transmission speed of the material on the transmission line 2.

[0056] In this specific embodiment, the tension of the transmission line 2 can be kept constant during the transmission process by adjusting the first back-pressure hydraulic valve 41 or the second back-pressure hydraulic valve 41 ′, thereby improving the stability of the material transmission process.

[0057] Specifically, the first back-pressure hydraulic valve 41 and the second back-pressure hydraulic valve 41 ′ may both be configured as overflow valves.

[0058] In a specific embodiment, if Figure 1 , 2 As shown, it also includes an oil replenishing circuit, which is provided with a first pressure reducing valve 6 and a second pressure reducing valve 6'. The oil inlet of the first pressure reducing valve 6 is connected to the pump outlet, and the oil outlet of the first pressure reducing valve 6 is connected to the first control valve group 4; the oil inlet of the second pressure reducing valve 6' is connected to the pump outlet, and the oil outlet of the second pressure reducing valve 6' is connected to the second control valve group 4'.

[0059] The first control valve group 4 is provided with a first check valve 42 and a second check valve 43 connected in series, the oil inlet of the first check valve 42 and the oil inlet of the second check valve 43 are both connected to the oil outlet of the first pressure reducing valve 6, and the oil outlet of the first check valve 42 and the oil outlet of the second check valve 43 are respectively connected to two oil circuit connection ports of the first hydraulic motor 3;

[0060] The second control valve group 4' is provided with a third one-way valve 42' and a fourth one-way valve 43' connected in series, the oil inlet of the third one-way valve 42' and the oil inlet of the fourth one-way valve 43' are both connected to the oil outlet of the second pressure reducing valve 6', and the oil outlet of the third one-way valve 42' and the oil outlet of the fourth one-way valve 43' are respectively connected to the two oil circuit connection ports of the second hydraulic motor 3'.

[0061] In the specific use process, such as Figure 2 As shown, when the first winch 1 actively rotates and the second winch 1' passively rotates, the second hydraulic motor 3' passively rotates during the rotation of the second winch 1', causing the hydraulic oil to flow out from the C port of the second hydraulic motor 3'. In order to avoid the motor from sucking air, the hydraulic oil enters through the P port of the second pressure reducing valve 6' and flows out from the A port of the second pressure reducing valve 6'. After being reduced in pressure by the second pressure reducing valve 6', the hydraulic oil flows through the fourth one-way valve 43', the D port of the second hydraulic motor 3', and the second hydraulic motor 3' in sequence to replenish the hydraulic oil for the second hydraulic motor 3' and avoid the second hydraulic motor 3' from sucking air.

[0062] like Figure 2 As shown, when the second winch 1' actively rotates and the first winch 1 passively rotates, the first hydraulic motor 3 passively rotates during the rotation of the first winch 1, causing the hydraulic oil to flow out from the C port of the first hydraulic motor 3. In order to avoid the motor from sucking air, the hydraulic oil enters through the P port of the first pressure reducing valve 6 and flows out from the A port of the second pressure reducing valve 6'. After being reduced in pressure by the first pressure reducing valve 6, it flows through the second one-way valve 43, the D port of the first hydraulic motor 3, and the first hydraulic motor 3 in sequence to replenish the hydraulic oil to the first hydraulic motor 3 and avoid the first hydraulic motor 3 from sucking air.

[0063] In a specific embodiment, the first control valve group 4 is provided with a first one-way sequence valve 44 and a third pressure reducing valve 45. When the first winch 1 is passively rotated, the oil inlet pressure of the oil inlet circuit of the first control valve group 4 is less than the opening pressure of the first one-way sequence valve 44, and the hydraulic oil in the oil inlet circuit of the first control valve group 4 is connected to the first brake controller of the first winch 1 through the third pressure reducing valve 45;

[0064] The second control valve group 4' is provided with a second one-way sequence valve 44' and a fourth pressure reducing valve 45'. When the second winch 1' is passively rotated, the oil inlet pressure of the oil inlet circuit of the second control valve group 4' is less than the opening pressure of the second one-way sequence valve 44', and the hydraulic oil in the oil inlet circuit of the second control valve group 4' is connected to the second brake controller of the second winch 1' via the fourth pressure reducing valve 45'.

[0065] In the specific use process, such as Figure 2 As shown, when the first winch 1 actively rotates and the second winch 1' passively rotates, the second electric proportional multi-way valve 5' controls the hydraulic oil to flow out from its B port to the B1 port connected to the second control valve group 4'. Since the oil inlet pressure of the oil inlet circuit of the second control valve group 4' is less than the opening pressure of the second one-way sequence valve 44', the hydraulic oil will flow into the fourth pressure reducing valve 45', and after flowing out of the fourth pressure reducing valve 45', it will flow into the oil circuit that controls the action of the second brake controller of the second winch 1', so as to control the second hydraulic motor 3' to stop rotating.

[0066] like Figure 2 As shown, when the first winch 1 rotates passively and the second winch 1' actively rotates, the first electric proportional multi-way valve 5 controls the hydraulic oil to flow out from its B port to the B1 port connected to the first control valve group 4. Since the oil inlet pressure of the oil inlet circuit of the first control valve group 4 is less than the opening pressure of the first one-way sequence valve 44, the hydraulic oil will flow into the third pressure reducing valve 45, and after flowing out of the third pressure reducing valve 45, it will flow into the oil circuit that controls the action of the first brake controller of the first winch 1, so as to control the first hydraulic motor 3 to stop rotating.

[0067] In this specific embodiment, during the process that one of the first winch 1 and the second winch 1' actively rotates and the other one passively rotates, the brakes of the first winch 1 and the second winch 1' can still be controlled to facilitate hovering.

[0068] In a specific embodiment, the oil outlet of the third pressure reducing valve 45 is connected to the first brake controller through the first shuttle valve 46, one of the oil inlets of the first shuttle valve 46 is connected to the first external oil circuit 47, and the other oil inlet is connected to the oil outlet of the third pressure reducing valve 45;

[0069] The oil outlet of the fourth pressure reducing valve 45' is connected to the second brake controller via the second shuttle valve 46'. One oil inlet of the second shuttle valve 46' is connected to the second external oil circuit 47', and the other oil inlet is connected to the oil outlet of the fourth pressure reducing valve 45'.

[0070] When both the first electric proportional multi-way valve 5 and the second electric proportional multi-way valve 5' are not started, the first external oil circuit 47 can be controlled to connect to the hydraulic oil source, so that the hydraulic oil enters the oil circuit for controlling the action of the first brake controller of the first winch 1 through the first external oil circuit 47 and the first shuttle valve 46, so as to control the brakes of the first winch 1; or the second external oil circuit can be controlled to connect to the hydraulic oil source, so that the hydraulic oil enters the oil circuit for controlling the action of the second brake controller of the second winch 1' through the second external oil circuit 47' and the second shuttle valve 46', so as to control the brakes of the second winch 1'.

[0071] In a specific embodiment, the first control valve group 4 further includes a first reversing valve 48 connected to the first external oil circuit 47, and the oil inlet and the oil outlet of the first reversing valve 48 are respectively connected to the two oil circuit connection ports of the first hydraulic motor 3; the hydraulic oil in the first external oil circuit 47 flows through the first reversing valve 48 in one way, and flows through the first shuttle valve 46 and the first brake controller in the other way in sequence;

[0072] The second control valve group 4' also includes a second reversing valve 48' connected to the second external oil circuit 47', and the oil inlet and oil outlet of the second reversing valve 48' are respectively connected to the two oil circuit connection ports of the first hydraulic motor 3; the hydraulic oil in the second external oil circuit 47' flows through the second reversing valve 48' in one way, and flows through the second shuttle valve 46' and the second brake controller in turn in the other way.

[0073] When the first electric proportional multi-way valve 5 and the second electric proportional multi-way valve 5' are both not started, at this time, if the first winch 1 moves relative to the second winch 1' to tighten the transmission line 2, in order to maintain the tension of the transmission line 2, it is necessary to start the first winch 1 or the second winch 1' to release the transmission rope; at this time, the first external oil circuit 47 can be controlled to connect to the hydraulic oil source, so that the hydraulic oil passes through the first external oil circuit 47 and one of the channels flows through the first reversing valve 48, so that the two oil ports of the first hydraulic motor 3 are connected and in a floating state, and the other channel of hydraulic oil enters the first brake through the first shuttle valve 46 and the first winch 1 The controller opens the first brake controller, and the tension of the transmission line 2 causes the first hydraulic motor 3 to rotate, thereby causing the first winch 1 to float and release the rope; or the second external oil circuit is controlled to connect to the hydraulic oil source, so that the hydraulic oil passes through the second external oil circuit 47' and one of the paths flows through the second reversing valve 48', so that the two oil ports of the second hydraulic motor 3' are connected and become a floating state, and the other path of hydraulic oil enters the second brake controller through the second shuttle valve 46' and the second winch 1', so that the second brake controller is opened, and the tension of the transmission line 2 causes the second hydraulic motor 3' to rotate, thereby causing the second winch 1' to float and release the rope.

[0074] In a specific embodiment, the double winch material conveying hydraulic control device also includes a remote control device for remote control, and the first electric proportional multi-way valve 5 and the second electric proportional multi-way valve 5' are both connected to the remote control device, and the remote control device is used to remotely control the actions of the first electric proportional multi-way valve 5 and the second electric proportional multi-way valve 5'; it is convenient to realize the remote control function, avoid underground manipulation operations, and further reduce the possible dangers of underground operations.

[0075] like Figure 2 As shown, the C port of the first hydraulic motor 3 is connected to the fourth overflow valve 492, the D port of the first hydraulic motor 3 is connected to the third overflow valve 491, the C port of the second hydraulic motor 3' is connected to the second overflow valve 492', and the D port of the second hydraulic motor 3' is connected to the first overflow valve 491'.

[0076] The first winch 1 and the second winch 1', the first hydraulic motor 3 and the second hydraulic motor 3', the first control valve group 4 and the second control valve group 4', the first back pressure hydraulic valve 41 and the second back pressure hydraulic valve 41', the first shuttle valve 46 and the second shuttle valve 46', the first one-way sequence valve 44 and the second one-way sequence valve 44', the first reversing valve 48 and the second reversing valve 48', the third pressure reducing valve 45, the fourth pressure reducing valve 45', the third overflow valve 491, the fourth overflow valve 492, the first overflow valve 491' and the second overflow valve 492', the first one-way valve 42, the second one-way valve 43, the third one-way valve 42' and the fourth one-way valve 43', the first electric proportional multi-way valve 5 and the second electric proportional multi-way valve 5', the first pressure reducing valve 6 and the second pressure reducing valve 6' mentioned in the present application document are "first", "second", "third", "fourth", "fifth" and "sixth" are only for distinguishing the different positions, and there is no distinction between the order of precedence.

[0077] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. Any combination of all embodiments provided by the present invention is within the protection scope of this invention and will not be described in detail here.

[0078] The above is a detailed introduction to the double winch material conveying hydraulic control device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A double winch material conveying hydraulic control device, characterized in that: include: A first winch (1); a second winch (1') arranged at a distance from the first winch (1); A transmission line (2), one end of which is wound around the first winch (1), and the other end of which is wound around the second winch (1'), and the transmission line (2) is fixedly provided with a bearing member (21) for bearing materials; A first hydraulic motor (3) is used to drive the first winch (1) to move; A second hydraulic motor (3') is used to drive the second winch (1') to move; a first control valve group (4), connected to the first hydraulic motor (3) and the first winch (1), the first control valve group (4) being used to control the action of the first hydraulic motor (3) and the brake of the first winch (1); a second control valve group (4'), connected to the second hydraulic motor (3') and the second winch (1'), the second control valve group (4') being used to control the action of the second hydraulic motor (3') and the brake of the second winch (1'); A first electric proportional multi-way valve (5), connected to the first control valve group (4), and used for controlling the flow direction of the hydraulic oil entering the first control valve group (4); The second electric proportional multi-way valve (5') is connected to the second control valve group (4') and is used to control the flow direction of the hydraulic oil entering the second control valve group (4').

2. The double winch material conveying hydraulic control device according to claim 1, characterized in that: The first control valve group (4) is provided with a first back-pressure hydraulic valve (41), the first back-pressure hydraulic valve (41) is located in the oil return circuit when the first winch (1) releases the rope, and the first back-pressure hydraulic valve (41) is used to adjust the traction force of the transmission line (2); The second control valve group (4') is provided with a second back-pressure hydraulic valve (41'), and the second back-pressure hydraulic valve (41') is located in the oil return circuit when the second winch (1') releases the rope, and the second back-pressure hydraulic valve (41') is used to adjust the traction force of the transmission rope.

3. The double winch material conveying hydraulic control device according to claim 2, characterized in that: The first back-pressure hydraulic valve (41) and the second back-pressure hydraulic valve (41') are both overflow valves.

4. The double winch material conveying hydraulic control device according to claim 1, characterized in that: The invention also includes an oil replenishment circuit, wherein the oil replenishment circuit is provided with a first pressure reducing valve (6) and a second pressure reducing valve (6'), wherein the oil inlet of the first pressure reducing valve (6) is connected to the pump outlet, and the oil outlet of the first pressure reducing valve (6) is connected to the first control valve group (4); the oil inlet of the second pressure reducing valve (6') is connected to the pump outlet, and the oil outlet of the second pressure reducing valve (6') is connected to the second control valve group (4').

5. The double winch material conveying hydraulic control device according to claim 4, characterized in that: The first control valve group (4) is provided with a first one-way valve (42) and a second one-way valve (43) connected in series, the oil inlet of the first one-way valve (42) and the oil inlet of the second one-way valve (43) are both connected to the oil outlet of the first pressure reducing valve (6), and the oil outlet of the first one-way valve (42) and the oil outlet of the second one-way valve (43) are respectively connected to two oil circuit connection ports of the first hydraulic motor (3); The second control valve group (4') is provided with a third one-way valve (42') and a fourth one-way valve (43') connected in series, the oil inlet of the third one-way valve (42') and the oil inlet of the fourth one-way valve (43') are both connected to the oil outlet of the second pressure reducing valve (6'), and the oil outlet of the third one-way valve (42') and the oil outlet of the fourth one-way valve (43') are respectively connected to two oil circuit connection ports of the second hydraulic motor (3').

6. The double winch material conveying hydraulic control device according to claim 1, characterized in that: The first control valve group (4) is provided with a first one-way sequence valve (44) and a third pressure reducing valve (45). When the first winch (1) is passively rotated, the oil inlet pressure of the oil inlet circuit of the first control valve group (4) is less than the opening pressure of the first one-way sequence valve (44), and the hydraulic oil in the oil inlet circuit of the first control valve group (4) is connected to the first brake controller of the first winch (1) via the third pressure reducing valve (45); The second control valve group (4') is provided with a second one-way sequence valve (44') and a fourth pressure reducing valve (45'). When the second winch (1') is passively rotated, the oil inlet pressure of the oil inlet circuit of the second control valve group (4') is less than the opening pressure of the second one-way sequence valve (44'), and the hydraulic oil in the oil inlet circuit of the second control valve group (4') is connected to the second brake controller of the second winch (1') via the fourth pressure reducing valve (45').

7. The double winch material conveying hydraulic control device according to claim 6, characterized in that: The oil outlet of the third pressure reducing valve (45) is connected to the first brake controller via a first shuttle valve (46); one of the oil inlets of the first shuttle valve (46) is connected to a first external oil circuit (47), and the other oil inlet is connected to the oil outlet of the third pressure reducing valve (45); The oil outlet of the fourth pressure reducing valve (45') is connected to the second brake controller via a second shuttle valve (46'), one of the oil inlets of the second shuttle valve (46') is connected to the second external oil circuit (47'), and the other oil inlet is connected to the oil outlet of the fourth pressure reducing valve (45').

8. The double winch material conveying hydraulic control device according to claim 7, characterized in that: The first control valve group (4) further comprises a first reversing valve (48) connected to the first external oil circuit (47); an oil inlet and an oil outlet of the first reversing valve (48) are respectively connected to two oil circuit connection ports of the first hydraulic motor (3); the hydraulic oil in the first external oil circuit (47) flows through the first reversing valve (48) in one way and flows through the first shuttle valve (46) and the first brake controller in the other way; The second control valve group (4') also includes a second reversing valve (48') connected to the second external oil circuit (47'), and the oil inlet and the oil outlet of the second reversing valve (48') are respectively connected to the two oil circuit connection ports of the first hydraulic motor (3); the hydraulic oil in the second external oil circuit (47') flows through the second reversing valve (48') in one way, and flows through the second shuttle valve (46') and the second brake controller in the other way.

9. The double winch material conveying hydraulic control device according to any one of claims 1 to 8, characterized in that: It also includes a remote control device for remote control, the first electric proportional multi-way valve (5) and the second electric proportional multi-way valve (5') are both connected to the remote control device, and the remote control device is used to remotely control the actions of the first electric proportional multi-way valve (5) and the second electric proportional multi-way valve (5').

10. The double winch material conveying hydraulic control device according to any one of claims 1 to 8, characterized in that: Both the two oil circuit connection ports of the first hydraulic motor (3) and the two oil circuit connection ports of the second hydraulic motor (3') are connected to overflow valves.

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