CN217735396U - Rock drill feed beam and control system for bidirectional feed acceleration and deceleration of rock drill - Google Patents

Abstract

The utility model discloses a rock drill propulsion beam and control system of two-way propulsion acceleration and deceleration of rock drill thereof belongs to rock drilling equipment technical field. The utility model discloses a control system of rock drill bidirectional propulsion acceleration and deceleration for the operator is after getting into the fast propulsion mode, and the system can automatic judgement, and the revolving head reaches preset position, then automatic switch to the slow propulsion mode, need not operator manual operation, when having improved the fast propulsion distance, has still improved operating efficiency, has realized the two-way acceleration and deceleration of the automatic control propulsion function of propulsion beam; meanwhile, the problem that the structure is damaged due to the fact that the rotating head impacts a limiting block is avoided. The utility model discloses a sensor mount still can realize proximity switch's removal behind fixed mounting to adjust the distance between proximity switch and the stopper, be favorable to controlling the revolving head more accurately, avoid the revolving head to strike the stopper.

Description

Rock drill propulsion beam and control system for bidirectional propulsion acceleration and deceleration of rock drill

Technical Field

The utility model relates to a rock drilling equipment technical field, more specifically say, relate to a rock drill propulsion beam and two-way propulsion acceleration and deceleration's of rock drill control system thereof.

Background

The propulsion of existing surface rock drilling equipment includes fast propulsion and slow propulsion, according to the traditional design method, the operator manually controls the processes of fast propulsion and slow propulsion, the fast propulsion and the slow propulsion are controlled by a switch of a cab, the fast propulsion mode is entered when a fast push button is pressed, and the slow propulsion mode is switched to when the fast push button is released. However, the manual control of the fast propulsion and the slow propulsion cannot accurately judge the specific position, and the working efficiency is reduced. In addition, if the stop position can not be judged, the limiting block is easily impacted by fast propulsion, so that the fixing bolt of the limiting plate is broken, certain damage is caused, and the safety risk is increased.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

An object of the utility model is to overcome not enough among the prior art, provide a rock drill impels control system of two-way acceleration and deceleration for the operator is in getting into the fast propulsion mode, and the system can automatic judgement, and the gyration head reachs preset's position, then automatic switch-over to pushing away the mode slowly, need not operator manual control, has avoided the unable accurate problem of judging the position and striking the stopper easily and leading to the equipment to damage of artificial control.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does: a rock drill feed beam comprises a beam body, wherein one end of the beam body is provided with a rotary head, the other end of the beam body is provided with a limiting block, and the rotary head reciprocates on the beam body; the mounting brackets are arranged at two ends of the beam body and comprise fixing parts, and a main moving part and an auxiliary moving part which are arranged on the fixing parts, wherein the main moving part and the auxiliary moving part can move on the fixing parts, and the main moving part is provided with a proximity switch; one of the mounting brackets is close to the limiting block.

As a further improvement, the mounting is both sides mutually perpendicular's folded plate structure, wherein is equipped with the bar activity hole on one side, is equipped with a plurality of fixed orificess on the another side, fixed orifices place limit is fixed through the bolt one side of the roof beam body.

As a further improvement of the present invention, the middle part of the main moving part is in a straight plate shape, one end of the straight plate is vertically provided with a fixing plate, the other end of the straight plate is provided with a sensor mounting hole, and the fixing plate is provided with a plurality of first threaded holes; the auxiliary moving part is plate-shaped, and a plurality of second threaded holes are formed in the auxiliary moving part; the main moving part faces the side where the rotating head is located, the main moving part and the auxiliary moving part are respectively installed on two sides of the strip-shaped movable hole through bolts, and the bolts penetrate through the first threaded hole, the strip-shaped movable hole and the second threaded hole.

As a further improvement, the sensor mounting hole place end of main moving part middle part straight board still is equipped with the guard plate perpendicularly, the guard plate both sides all are equipped with the flap perpendicularly, the guard plate with the fixed plate is located the different sides of main moving part, the flap all moves towards sensor mounting hole place side.

A control system for bidirectional propulsion acceleration and deceleration of a rock drill adopts any one of the rock drill propulsion beams, and further comprises a pressure supply element, a hydraulic pressure source and an oil tank; the execution loop comprises a direction-changing valve connected with the pressure supply element and an execution part connected with the direction-changing valve; the control loop comprises a handle connected with the pressure supply element, an uplink loop and a downlink loop, wherein the uplink loop and the downlink loop are respectively connected with two output ports controlled by the handle, and the uplink loop and the downlink loop are both connected with the direction changing valve; the executive component pushes the rotary head to slide along the beam body in a reciprocating mode.

As a further improvement of the utility model, a main pressure reducing valve is arranged on a pipeline connecting the handle and the pressure supply element.

As a further improvement, the upward loop includes with first liquid accuse check valve, the first relief pressure valve that the first delivery outlet of handle is connected, still install first pressure switch on the connecting pipeline of first liquid accuse check valve and this delivery outlet.

As a further improvement, the downward loop includes a second hydraulic control check valve and a second pressure reducing valve connected to the second output port of the handle, and a second pressure switch is further installed on the connecting pipeline of the second hydraulic control check valve and the output port.

As a further improvement of the present invention, the first pressure reducing valve and the second pressure reducing valve are connected to the oil tank through electromagnetic valves.

As a further improvement of the present invention, the proximity switch, the first pressure switch, the second pressure switch, and the solenoid valve are controlled by a controller.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) The utility model discloses a improve the propulsion beam, the sensor mounting bracket has been set up, and at the installation proximity switch of mount frame, this sensor mounting bracket is behind fixed mounting, still can realize proximity switch's removal, thereby adjust the distance between proximity switch and the stopper, be favorable to controlling the swivel head more accurately, avoid the swivel head to strike the stopper, and this sensor mounting bracket is because its adjustable design, can be applied to the rock drill of different specifications, structural design is reasonable, the simple easy operation of installation, convenient to popularize and use.

(2) The utility model discloses a control system of rock drill bidirectional propulsion acceleration and deceleration for the operator is after getting into the fast propulsion mode, and the system can automatic judgement, and the revolving head reaches preset position, then automatic switch to the slow propulsion mode, need not operator manual operation, when having improved the fast propulsion distance, has still improved operating efficiency, has realized the two-way acceleration and deceleration of the automatic control propulsion function of propulsion beam; meanwhile, the problem that the structure is damaged due to the fact that the rotating head impacts a limiting block is avoided.

Drawings

Fig. 1 is a schematic view of the whole and local enlarged structure of the feed beam of the rock drill of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure of the sensor mounting bracket of the present invention.

Fig. 3 is a schematic diagram of a hydraulic system of a control system for bidirectional propulsion acceleration and deceleration of a rock drilling machine according to the present invention.

Fig. 4 is an operation flow chart of the control system for bidirectional propulsion acceleration and deceleration of the rock drilling machine of the present invention.

The reference numbers in the schematic drawings illustrate:

100. a beam body; 101. a turret head; 102. a limiting block; 103. a proximity switch;

200. mounting a bracket; 201. a fixing member; 201a, strip-shaped movable holes; 201b, fixing holes; 202. a primary moving member; 202a, a fixing plate; 202b, sensor mounting holes; 202c, a protection plate; 202c-1, wings; 203. a secondary moving member;

p, a hydraulic pressure source; t, an oil tank; DCV1, a change valve; cyl1, executive component; j1, a handle; PRV1, master relief valve; CV1, a first hydraulic control one-way valve; PR1, a first pressure reducing valve; p1, a first pressure switch; CV2 and a second hydraulic control one-way valve; PR2, a second pressure reducing valve; p2, a second pressure switch; y1, an electromagnetic valve.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The structure, proportion, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the limit conditions of the present invention, so that the present invention has no technical essence, and any structural modification, proportion relation change or size adjustment should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are used for clarity of description, and are not used to limit the implementable scope, and the changes or adjustments of the relative relationship thereof can be considered as the implementable scope of the present invention without substantial technical changes.

Example 1

The first embodiment of the present invention introduces a feed beam for a rock drill, and with reference to fig. 1 and 2, the feed beam for a rock drill of the present embodiment includes a beam body 100 of the feed beam itself, wherein a rotary head 101 is provided at one end of the beam body, and a stopper 102 is provided at the other end of the beam body, and the rotary head 101 reciprocates on the beam body 100; the mounting bracket 200 for mounting the sensor is arranged at two ends of the beam body 100 and comprises a fixed part 201, a main movable part 202 and an auxiliary movable part 203 which are mounted on the fixed part, wherein the main movable part 202 and the auxiliary movable part 203 can move on the fixed part 201, and the main movable part 202 is provided with a proximity switch 103; one of the mounting brackets 200 is adjacent the stop block 102.

Specifically, the fixing member 201 is a folded plate structure with two mutually perpendicular sides, the folded plate structure can be formed by welding two plates together, preferably, a whole plate is bent to obtain the structure, one side of the folded plate structure is provided with a strip-shaped movable hole 201a, the extending direction of the strip-shaped movable hole 201a is consistent with the extending direction of the fixing member 201, the other side of the folded plate structure is provided with a plurality of fixing holes 201b, and the side where the fixing hole 201b is located is fixed on one side of the beam body 100 through bolts.

Similarly, the main moving part 202 is also of an integrated structure, the middle part of the main moving part is of a straight plate shape, one end of the straight plate is vertically provided with a fixing plate 202a, the other end of the straight plate is provided with a sensor mounting hole 202b, and the fixing plate 202a is provided with a plurality of first threaded holes; the auxiliary moving part 203 is plate-shaped, and a plurality of second threaded holes are formed in the auxiliary moving part; when the movable type movable part is installed on the fixing part, the main movable part 202 faces the side where the rotating head is located, the main movable part 202 and the auxiliary movable part 203 are installed on two sides of the bar-shaped movable hole 201a through bolts respectively, and the bolts penetrate through the first threaded hole, the bar-shaped movable hole 201a and the second threaded hole.

Still further, a protection plate 202c is vertically arranged at the end where the sensor mounting hole of the straight plate in the middle of the main moving part 202 is located, two sides of the protection plate 202c are vertically provided with a protection wing 202c-1, the protection plate 202c and the fixing plate 202a are located on different sides of the main moving part, and the protection wing 202c-1 faces the side where the sensor mounting hole 202b is located. The protective plate 202c and the protective wing 202c-1 wrap the edge of the sensor to avoid damage caused by collision.

In the embodiment, the proximity switch 103 adopts an IFM inductive proximity switch IG5788, the sensing distance can be accurate to 8mm, and the proximity switch has a firm metal shell, is suitable for severe working environment, and has extremely high frequency and high protection level. In addition, the main movable piece 202 and the auxiliary movable piece 203 can move along the strip-shaped movable hole 201a by loosening and tightening the bolt for connecting the main movable piece 202 and the auxiliary movable piece 203, and can be applied to different propelling beams due to the adjustable arrangement of the main movable piece 202 and the auxiliary movable piece 203.

Example 2

Referring to fig. 3 and 4, in order to illustrate a second embodiment of the present invention, the present embodiment is based on the previous embodiment, and is different from the previous embodiment in that: this embodiment details a control system for bi-directional propulsion acceleration and deceleration of a rock drilling machine, which control system employs the rock drilling machine feed beam described above, and comprises a pressure supply element for providing a pressure source, an execution circuit for controlling the turret head, and a control circuit for operational control of the execution circuit.

The pressure supply element comprises a hydraulic pressure source P and an oil tank T and mainly provides a pressure source for the change valve DCV1 and the handle J;

the execution loop comprises a direction-changing valve DCV1 connected with the pressure supply element and an execution part Cyl1 connected with the direction-changing valve; the actuating member Cyl1 adopts a hydraulic oil cylinder, and can also adopt other elements such as a hydraulic motor, the actuating member Cyl1 pushes the rotary head 101 to slide back and forth along the beam body 100, the direction-changing valve DCV1 is used for controlling the moving direction and the moving speed of the actuating member Cyl1, referring to FIG. 3, the moving direction depends on the pressure conditions of a P1 'port and a P2' port at two ends of the direction-changing valve DCV1, and in a control range, the higher the pressure of the P1 'port or the P2' port is, the faster the moving speed of the Cyl1 is.

The control loop comprises a handle J1 connected with the pressure supply element, an uplink loop and a downlink loop, wherein the uplink loop and the downlink loop are respectively connected with two output ports controlled by the handle, and the uplink loop and the downlink loop are both connected with the direction-changing valve DCV 1;

in addition, a main pressure reducing valve PRV1 is provided on a pipe connecting the handle J1 and the pressure supply member, for reducing the system pressure to a pressure suitable for the handle J1.

More specifically, the ascending loop (as shown in fig. 3, the left side is labeled as up portion) includes a first pilot operated check valve CV1 and a first pressure reducing valve PR1 connected to the first output port of the handle J1, and a first pressure switch P1 is further installed on a connection pipeline between the first pilot operated check valve CV1 and the output port. The descending loop (as marked down part on the right side of fig. 3) comprises a second hydraulic control check valve CV2 and a second pressure reducing valve PR2 which are connected with a second output port of the handle J1, and a second pressure switch P2 is further installed on a connecting pipeline of the second hydraulic control check valve CV2 and the output port.

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Further, the first pressure reducing valve PR1 and the second pressure reducing valve PR2 are both connected to the tank T through an electromagnetic valve Y1. When the Y1 is de-energized, the first pressure reducing valve PR1 is used for limiting the pressure of the P1' port of the DCV 1; when Y1 is de-energized, the pressure reducing valve PR1 is out of control, and P1' depends on the pressure of 1 port of J1. Similarly, when the Y1 is de-energized, the second pressure reducing valve PR2 controls the pressure of the P2' port of the DCV 1; when Y1 is energized, the second pressure reducing valve PR2 is out of control, and P2' is dependent on the 2 port pressure of J1.

Further, in order to realize automatic control, the hydraulic system and the electrical system work cooperatively, and the proximity switch 103, the first pressure switch P1, the second pressure switch P2 and the electromagnetic valve Y1 are all controlled by one controller, which may be a PLC. Wherein (for easy distinction, referring to the up-down position in fig. 3, the proximity switch 103 is divided into B1 and B2) when the handle J1 is pressed, the quick advance is started; judging the propelling direction through the pressure switches P1 and P2, when the pressure exceeds 10bar, closing the pressure switches, when the pressure switch P1 is closed, judging that the propelling is upward, and when the rotary head reaches the position close to the switch, stopping the rapid propelling and starting the slow propelling; similarly, when the pressure switch P2 is closed, the downward propulsion is judged, and when the rotary head reaches the position close to the switch, the rapid propulsion is stopped and the slow propulsion is started. The logic process of the method is shown in FIG. 4, and the specific operation process is as follows: the handle S1 is pressed to start fast propulsion, when the handle S1 is pushed upwards, the handle S contacts the upper proximity switch B1, the handle S automatically starts slow propulsion, and when the handle S is pushed downwards, the handle S contacts the lower proximity switch B2, the handle S automatically starts slow propulsion. The method does not need the self-judgment of an operator, and the system can be automatically switched, so that the safety is high and the efficiency is high.

In this embodiment, the hydraulic system operates as follows:

to improve the operating comfort, the handle J1 is always pushed to the bottom, and the speed control is also controlled by PR1, PR2 and Y1. When low-speed movement is needed, the Y1 is powered off, and even if the handle is pushed to the bottom, the rotary head slides at low speed because the pressure of P1 'and P2' is limited by PR1/PR 2; when high-speed movement is required, the button is pressed to electrify the Y1, the PR1/PR2 loses the control on the pressure of the P1 'and the P2', and the rotary head moves at high speed. The deceleration principle is explained by taking the upward return action as an example. When the high-speed return action is performed, the J1 handle is pushed to the maximum stroke, oil is discharged from the port 1, oil is returned from the port 2, the pressure switch P1 detects pressure, the quick button is pressed down to enable the Y1 to be electrified, the PR1 does not play a role in reducing pressure any more, the pressure at the position P1 'is the maximum output pressure of the J1, the DCV1 works at the left position, the valve core is fully opened, the pressure oil enters the large cavity of the oil cylinder, the piston rod extends out to drive the rotary head to move upwards quickly, when the rotary head moves to be close to the top, the proximity switch B1 is triggered, under the condition that the quick button is not released and the P1 and the B1 both detect signals, the controller sends a signal to enable the Y1 to be powered off, the PR1 pressure reducing overflow function is achieved, the pressure at the port P1' is controlled by the PR1 to be reduced, the opening degree of the DCV1 is reduced, the flow entering the Cyl1 is reduced, and the automatic speed reduction of the Cyl1 can be achieved without releasing the quick button; if continue upward movement then with the continuation with the low-speed motion, downward movement so, handle J1 switching-over, the fast button is pressed, 2 mouthful play oil, 1 mouthful oil return, pressure switch P2 detects pressure, P2 and B1 detect the signal simultaneously this moment, make Y1 keep the state of being electrified after having the controller to judge, under the condition of proximity switch B1 induction promptly, can realize downward rapid movement. Thereby improving efficiency.

Note that, in the case where the downward rapid movement is sensed to B2, similar to the above-described case of the upward rapid movement, it is possible to realize automatic deceleration from the downward rapid movement to the time of sensing of B2, without the upward movement being affected by B2.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (10)

1. A rock drill feed beam characterized in that: comprises the steps of (a) preparing a substrate,

the device comprises a beam body (100), wherein one end of the beam body is provided with a rotary head (101), the other end of the beam body is provided with a limiting block (102), and the rotary head (101) moves on the beam body (100) in a reciprocating mode;

the mounting bracket (200) is arranged at two ends of the beam body (100) and comprises a fixed piece (201), a main movable piece (202) and an auxiliary movable piece (203) which are arranged on the fixed piece, the main movable piece (202) and the auxiliary movable piece (203) can move on the fixed piece (201), and a proximity switch (103) is arranged on the main movable piece (202);

one of the mounting brackets (200) is adjacent to the stopper (102).

2. A rockdrill feed beam according to claim 1, wherein: the fixing piece (201) is of a folded plate structure with two mutually vertical sides, a strip-shaped movable hole (201 a) is formed in one side, a plurality of fixing holes (201 b) are formed in the other side, and the side where the fixing hole (201 b) is located is fixed to one side of the beam body (100) through a bolt.

3. A rockdrill feed beam according to claim 2, wherein: the middle part of the main moving part (202) is in a straight plate shape, one end of the straight plate is vertically provided with a fixing plate (202 a), the other end of the straight plate is provided with a sensor mounting hole (202 b), and the fixing plate (202 a) is provided with a plurality of first threaded holes;

the auxiliary moving piece (203) is plate-shaped, and a plurality of second threaded holes are formed in the auxiliary moving piece;

the main moving piece (202) faces the side where the rotary head is located, the main moving piece (202) and the auxiliary moving piece (203) are respectively installed on two sides of the bar-shaped moving hole (201 a) through bolts, and the bolts penetrate through the first threaded hole, the bar-shaped moving hole (201 a) and the second threaded hole.

4. A rockdrill feed beam according to claim 3, wherein: the sensor fixing structure is characterized in that a protection plate (202 c) is further vertically arranged at the end, where a sensor mounting hole (202 b) of a straight plate in the middle of the main moving part (202) is located, of the straight plate, two sides of the protection plate (202 c) are respectively and vertically provided with a protection wing (202 c-1), the protection plate (202 c) and the fixing plate (202 a) are located on different sides of the main moving part, and the protection wings (202 c-1) face the side, where the sensor mounting hole (202 b) is located.

5. A control system for bidirectional propulsion acceleration and deceleration of a rock drill is characterized in that: the feed beam for rock drills according to any one of claims 1 to 4 further comprising,

a pressure supply element comprising a hydraulic pressure source (P) and a tank (T); and the number of the first and second groups,

the execution loop comprises a direction-changing valve (DCV 1) connected with the pressure supply element and an execution part (Cyl 1) connected with the direction-changing valve; and the number of the first and second groups,

the control loop comprises a handle (J1) connected with the pressure supply element, and an uplink loop and a downlink loop which are respectively connected with two output ports controlled by the handle, wherein the uplink loop and the downlink loop are both connected with the direction-changing valve (DCV 1);

the actuating element (Cyl 1) pushes the rotary head (101) to slide along the beam body (100) in a reciprocating mode.

6. A control system for bi-directional propulsion acceleration and deceleration of rock drills according to claim 5 characterized in that: and a main pressure reducing valve (PRV 1) is arranged on a pipeline connecting the handle (J1) and the pressure supply element.

7. A control system for bi-directional propulsion acceleration and deceleration of rock drills according to claim 6 wherein: the ascending loop comprises a first hydraulic control one-way valve (CV 1) and a first pressure reducing valve (PR 1), wherein the first hydraulic control one-way valve (CV 1) and the first pressure reducing valve (PR 1) are connected with a first output port of the handle (J1), and a first pressure switch (P1) is further installed on a connecting pipeline of the first hydraulic control one-way valve (CV 1) and the first output port.

8. A control system for bi-directional propulsion acceleration and deceleration of rock drills according to claim 7 wherein: the descending loop comprises a second hydraulic control one-way valve (CV 2) and a second pressure reducing valve (PR 2), the second hydraulic control one-way valve (CV 2) is connected with a second output port of the handle (J1), and a second pressure switch (P2) is further installed on a connecting pipeline of the second hydraulic control one-way valve (CV 2) and the second output port.

9. A control system for bi-directional propulsion acceleration and deceleration of a rock drill according to claim 8, characterized in that: the first pressure reducing valve (PR 1) and the second pressure reducing valve (PR 2) are connected with the oil tank (T) through an electromagnetic valve (Y1).

10. A control system for bi-directional propulsion acceleration and deceleration of a rock drill according to claim 9, characterized in that: the proximity switch (103), the first pressure switch (P1), the second pressure switch (P2) and the electromagnetic valve (Y1) are controlled by one controller.

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