A control system for combined action of hydraulic handle of a roof bolter

Abstract

The utility model discloses a kind of control system of anchor rod drilling machine hydraulic handle composite action, specifically related to hydraulic control technical field.Control system of anchor rod drilling machine hydraulic handle composite action, including:control system of anchor rod drilling machine hydraulic handle composite action, including: mode switch K, for output chassis mode signal;Switching valve relay J, the 86 feet of its coil is connected with chassis mode signal;Pilot switching valve Q, its solenoid coil is connected with the 87 feet of switching valve relay J;The output end of hydraulic handle is connected with the input end of pilot switching valve Q;Multi-way valve A and multi-way valve B, the push interface b1 of multi-way valve A is connected with the output end A3 of pilot switching valve Q.The control system of anchor rod drilling machine hydraulic handle composite action provided by the utility model can reduce hydraulic switch, easily realize several action linkage operation, save time, increase efficiency, can reduce corresponding connecting oil pipe, reduce the risk of oil leakage, reduce the risk of failure.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic control technology, and in particular to a control system for the compound action of the hydraulic handle of an anchor drilling rig. Background Technology

[0002] Currently, most anchor bolt (anchoring) drilling rigs rely on existing excavator technology for their operation. However, excavators perform fewer operational actions, while anchor bolt (anchoring) drilling rigs require significantly more. The traditional approach involves adding hydraulic control levers to achieve these actions, resulting in numerous levers in the cab, increasing operator difficulty and complexity. The large number and wide distribution of levers also make continuous operation inconvenient, reducing efficiency. Furthermore, the narrow cab space combined with numerous levers increases potential risks. Additionally, the increased number of hydraulic control levers raises costs and increases the likelihood of malfunctions.

[0003] Therefore, it is necessary to provide a control system for the combined action of the hydraulic handle of an anchor drilling rig to solve the above-mentioned technical problems. Utility Model Content

[0004] In view of the above situation, in order to overcome the shortcomings of the existing technology in that there are many operating handles, this utility model provides a control system for the compound action of the hydraulic handle of the anchor drilling rig. This system can reduce the number of hydraulic switches, make it easy to realize the linkage operation of several actions, save time, increase efficiency, reduce the corresponding connecting oil pipes, reduce the risk of oil leakage, and reduce the risk of failure.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The control system for the combined action of the hydraulic handle of the anchor drilling rig includes: a mode switch K, used to output the chassis mode signal;

[0007] The switching valve relay J has its coil pin 86 connected to the chassis mode signal;

[0008] The pilot switching valve Q has its solenoid coil connected to pin 87 of the switching valve relay J;

[0009] The output end of the hydraulic handle is connected to the input end of the pilot switching valve Q;

[0010] Multi-way valve A and multi-way valve B, the push port b1 of multi-way valve A is connected to the output terminal A3 of pilot switching valve Q, and the push port b2 of multi-way valve B is connected to the output terminal B3 of pilot switching valve Q;

[0011] Hydraulic cylinders C and D are connected to the output ports A1 and B1 of multi-way valve A and the output ports A2 and B2 of multi-way valve B, respectively.

[0012] When the mode switch K is in drilling mode, there is no output of chassis mode signal, the switching valve relay J does not operate, the input terminal P3 of the pilot switching valve Q is connected to the output terminal A3 through the internal oil circuit, and the hydraulic oil drives the multi-way valve A to control the oil cylinder C.

[0013] When the mode switch K is in chassis mode, the chassis mode signal is output, the switching valve relay J is activated, the pilot switching valve Q switches the oil circuit to connect the input terminal P3 and the output terminal B3, and the hydraulic oil drives the multi-way valve B to control the oil cylinder D.

[0014] Preferably, pin 85 of the switching valve relay J is grounded, and a diode for suppressing voltage spikes is connected in parallel between pin 86 and pin 85.

[0015] Preferably, pin 30 of the switching valve relay J is connected to the output terminal of the fuse box, and pin 87 is connected as the output terminal to the solenoid coil of the pilot switching valve Q.

[0016] Preferably, the four-directional movement of the hydraulic handle is achieved through the cooperation of the pilot switching valve Q and the multi-way valve, realizing eight different cylinder action outputs.

[0017] Preferably, the pilot switching valve Q connects the input terminal P3 and the output terminal A3 in the default state, and switches to connect the input terminal P3 and the output terminal B3 in the energized state.

[0018] Preferably, the multi-way valve A and multi-way valve B are double-acting hydraulic valves, which control the extension and retraction of the hydraulic cylinder C and hydraulic cylinder D respectively.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This application reduces the number of hydraulic switches, saving on the cost of hydraulic control handles; optimizes operation by reducing panel switches, making operation simpler; has a simple structure, making it easy for operators to master; the reduction in handle switches makes it easier to achieve coordinated operation of several actions, saving time and increasing efficiency; the reduction in hydraulic handle switches can reduce the corresponding connecting oil pipes, reducing the risk of oil leakage; the reduction in hydraulic handle switches can reduce the risk of malfunction. Attached Figure Description

[0021] Figure 1 System diagram of the control system for the combined action of the hydraulic handle of the anchor drilling rig provided by this utility model;

[0022] Figure 2 for Figure 1 Partial schematic diagram;

[0023] Figure 3 for Figure 1 Partial schematic diagram;

[0024] Figure 4 for Figure 1 Partial schematic diagram;

[0025] Figure 5 A schematic diagram of the control system for the combined action of the hydraulic handle of the anchor drilling rig provided by this utility model. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0027] The hydraulic control system of this invention mainly includes the following components:

[0028] Mode switch K, switching valve relay J, pilot switching valve Q, hydraulic handle, multi-way valve A, multi-way valve B, hydraulic cylinder C and hydraulic cylinder D.

[0029] The mode switch K is used to switch between drilling mode and chassis mode, and outputs chassis mode signal 008.

[0030] The switching valve relay J receives the mode switch signal and controls the on / off state of the solenoid coil of the pilot switching valve Q.

[0031] The pilot switching valve Q is controlled by a relay to switch the direction of the hydraulic oil circuit, determining whether the hydraulic oil flows to multi-way valve A or multi-way valve B.

[0032] The hydraulic handle is used to control the flow of hydraulic oil, and its output terminal R1 is connected to the input terminal P3 of the pilot switching valve Q.

[0033] Multi-way valve A and multi-way valve B control the actions of hydraulic cylinders C and D, respectively.

[0034] Hydraulic cylinders C and D are actuators, used for different functions such as drilling and chassis movement.

[0035] Circuit control section:

[0036] The chassis mode signal 008 of the mode switch K is connected to pin 86 of the coil of the switching valve relay J, and pin 85 is grounded.

[0037] To prevent the circuit from being damaged by a reverse electromotive force when the relay coil is de-energized, a diode is connected in parallel between pins 86 and 85. The diode can be a freewheeling diode.

[0038] Pin 30 of the switching valve relay J is connected to the power output terminal of the fuse box, and pin 87 is connected to the solenoid coil of the pilot switching valve Q.

[0039] Hydraulic circuit components:

[0040] The output end R1 of the hydraulic handle is connected to port P3 of the pilot switching valve Q.

[0041] The pilot switching valve Q has two operating states:

[0042] By default, hydraulic oil flows from P3 to A3, then to the push port b1 of multi-way valve A, driving cylinder C.

[0043] When energized, hydraulic oil flows from P3 to B3, then to the push port b2 of the multi-way valve B, driving the cylinder D.

[0044] The output terminals A1 and B1 of multi-way valve A are connected to oil cylinder C, and the output terminals A2 and B2 of multi-way valve B are connected to oil cylinder D.

[0045] Specifically: The chassis mode signal 008 of the mode switch K of the anchor bolt (anchoring) drilling rig is brought out, and a relay control is added for the switching valve relay J. The chassis mode signal 008 is connected to pin 86 of the switching valve relay coil. Pin 85 of the pilot valve switching relay coil is grounded. To prevent the instantaneous peak voltage generated when the coil is energized or de-energized from damaging other electrical components of the machine, a diode is connected in parallel between pins 86 and 85 of the coil to suppress the peak voltage of the coil. Pin 30 of the relay is connected to the output terminal of the fuse box, and pin 87 is connected as the output terminal to the solenoid valve coil of the pilot switching valve Q. The oil circuit input terminal P3 of the pilot switching valve Q is connected to the hydraulic handle output terminal R1. The output terminal A3 of the pilot switching valve is connected to the push interface b1 of the multi-way valve A. The output interfaces A1 and B1 of the multi-way valve A are connected to the oil cylinder C.

[0046] When the hydraulic handle switch is moved in a certain direction, such as when the handle is turned to the left, the hydraulic handle output port R1 is connected, and oil is output to the input port P3 of the pilot switching valve Q. When the mode switch is in drilling mode, the mode switch chassis mode signal 008 has no output, the switching valve relay does not work, and the pilot switching valve is in the default state. The oil circuit at the input port P3 of the pilot switching valve Q goes through internal pipes a to b, b to A3, and the oil circuit output at port A3. The oil circuit at port A3 of the pilot switching valve Q is connected to the push port b1 of the multi-way valve A. When there is oil at port b1, it pushes the main oil circuit B1 of the multi-way valve to output. The oil circuit output at B1 pushes the cylinder C to work, resulting in one action. Similarly, when the hydraulic handle switch is still moving in a certain direction, such as when it is turned to the left... When the handle is operated, the hydraulic handle output port R1 is connected, and oil is output to the input port P3 of the pilot switching valve Q. When the mode switch is in chassis mode, the chassis mode signal 008 of the mode switch is energized, and pins 30 and 87 of the switching valve relay J are connected. Pin 87 is energized, and the coil of the pilot switching valve Q is energized. The internal oil circuit of the pilot switching valve is switched. The oil circuit at the input port P3 of the pilot switching valve Q goes through internal pipes e to f, f to B3, and the oil circuit at the B3 port of the pilot switching valve outputs oil. The oil circuit at the B3 port of the pilot switching valve Q connects to the push port b2 of the multi-way valve B. When there is oil at port b2, it pushes the main oil circuit B2 of the multi-way valve B to open. The oil circuit output of B2 pushes the cylinder D to move, resulting in another action. In this way, the hydraulic handle switch can produce two action outputs when it is operated in one direction. Similarly, the hydraulic handle switch can achieve eight different actions in four directions using the same method.

Claims

1. A control system for combined action of a hydraulic handle of a rod drill, characterized in that, include: Mode switch K is used to output chassis mode signal; The switching valve relay J has its coil pin 86 connected to the chassis mode signal; The pilot switching valve Q has its solenoid coil connected to pin 87 of the switching valve relay J; The output end of the hydraulic handle is connected to the input end of the pilot switching valve Q; Multi-way valve A and multi-way valve B, the push port b1 of multi-way valve A is connected to the output terminal A3 of pilot switching valve Q, and the push port b2 of multi-way valve B is connected to the output terminal B3 of pilot switching valve Q; Hydraulic cylinders C and D are connected to the output ports A1 and B1 of multi-way valve A and the output ports A2 and B2 of multi-way valve B, respectively. When the mode switch K is in drilling mode, there is no output of chassis mode signal, the switching valve relay J does not operate, the input terminal P3 of the pilot switching valve Q is connected to the output terminal A3 through the internal oil circuit, and the hydraulic oil drives the multi-way valve A to control the oil cylinder C. When the mode switch K is in chassis mode, the chassis mode signal is output, the switching valve relay J is activated, the pilot switching valve Q switches the oil circuit to connect the input terminal P3 and the output terminal B3, and the hydraulic oil drives the multi-way valve B to control the oil cylinder D.

2. The control system for combined action of hydraulic handle of a rod bolting machine according to claim 1, characterized in that, Pin 85 of the switching valve relay J is grounded, and a diode for suppressing voltage spikes is connected in parallel between pin 86 and pin 85.

3. The control system for combined action of hydraulic handle of a rod bolting machine according to claim 1, characterized in that, Pin 30 of the switching valve relay J is connected to the output terminal of the fuse box, and pin 87 is connected to the solenoid coil of the pilot switching valve Q as the output terminal.

4. The control system for combined action of hydraulic handle of a rod bolting machine according to claim 1, characterized in that, The four-directional movement of the hydraulic handle, through the cooperation of the pilot switching valve Q and the multi-way valve, achieves eight different cylinder action outputs.

5. The control system for combined action of hydraulic handle of a rod bolting machine according to claim 1, characterized in that, The pilot switching valve Q connects the input terminal P3 and the output terminal A3 in the default state, and switches to connect the input terminal P3 and the output terminal B3 when energized.

6. The control system for combined action of hydraulic handle of a rod bolting machine according to claim 1, characterized in that, The multi-way valves A and B are double-acting hydraulic valves, which control the extension and retraction of cylinders C and D, respectively.

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