CN111691829B

CN111691829B - Rock drilling boom

Info

Publication number: CN111691829B
Application number: CN202010658251.4A
Authority: CN
Inventors: 魏鹏程; 胡鹏填; 国清华; 黄世伟
Original assignee: Hunan Pengxiang Xingtong Automobile Co ltd
Current assignee: Hunan Pengxiang Xingtong Automobile Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2024-07-09
Anticipated expiration: 2040-07-09
Also published as: CN111691829A

Abstract

The invention provides a rock drilling boom, which comprises a boom support table, a main boom swing seat, a main boom, a telescopic component, a rotary connecting piece, a propelling beam assembly, a pitching translation component and a swinging arm translation component, wherein the swinging arm translation component can drive the main boom to swing horizontally and simultaneously maintain the horizontal angle of the propelling beam assembly unchanged, and the pitching translation component comprises a main boom pitching oil cylinder and a propelling Liang Fuang leveling oil cylinder with the extension length changing along with the extension length of the main boom pitching oil cylinder. According to the invention, only one main arm pitching oil cylinder is used in the pitching translation assembly, so that the function of lifting the arm is achieved, the function of signal transmission with the propelling beam leveling oil cylinder is achieved, the telescopic action of the propelling beam leveling oil cylinder and the telescopic action of the main arm pitching oil cylinder are in a direct linear relation, the linkage action is more direct, the overall layout space can be reduced, the space utilization rate is improved, and the drill jumbo is more convenient in steering.

Description

Rock drilling boom

Technical Field

The present invention relates to the field of rock drilling equipment, and more particularly to a rock drilling boom.

Background

In the construction process of tunnels, underground engineering and mining, the drilling of blast holes is required, but the actual drilling section is uneven, so that the drilling propelling beam must always keep a certain angle with the central line of the tunnel unchanged during drilling operation in order to ensure the best blasting effect; the leveling of the drilling propulsion beam is a key technology, when the height or the left and right positions of the main arm are adjusted, if a leveling or callback device is not arranged below the drilling propulsion beam, the drilling propulsion beam at the top end cannot be kept parallel to the initial position, so that the drilling path cannot be parallel, and finally the blasting effect is influenced.

In the prior art, when the main arm moves in a pitching way, the drilling arm has various leveling or callback modes of the drilling pushing beam so as to ensure the translation of the drilling pushing beam, but most of structures are complex in layout, the translation structure increases the space of equipment, and when the main arm swings or moves in a pitching way, the freedom degree of the movement of the main arm is influenced; for example, CN205805428U discloses a boom translation mechanism of a tunneling drill carriage, which realizes the translation when the rock drilling pushing beam is pitching by matching an arm lifting oil cylinder, an arm lifting translation signal oil cylinder and an arm lifting translation oil cylinder matched with the arm lifting translation signal oil cylinder, and increases the arm lifting translation signal oil cylinder at one side of the arm lifting oil cylinder, thus increasing the layout space of the whole drill boom, affecting the freedom degree of the movement of the main boom, and being limited to a certain extent when the rock drilling carriage turns.

Disclosure of Invention

The invention provides the rock drilling boom, which aims to solve the problems that the two cylinders of the boom lifting cylinder and the boom lifting translation signal cylinder in the background art increase the layout space of the whole drilling boom, influence the freedom degree of the movement of a main boom and are limited to a certain extent when a rock drilling vehicle turns.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a rock drilling arm, including cantilever crane brace table, main arm swing seat, main arm, telescopic module, rotary connection spare, impel beam assembly, every single move translation subassembly and can drive main arm horizontal oscillation and maintain the invariable swing arm translation subassembly of impel beam assembly horizontal angle simultaneously, main arm swing seat one end vertical hinge (vertical articulated promptly through vertical winch shaft articulated, make under the normal placing state of rock drilling arm, this articulated position can be in horizontal activity, in vertical unable activity) on cantilever crane brace table, the other end with main arm's one end horizontal hinge (horizontal articulated promptly through horizontal winch shaft articulated, make under the normal placing state of rock drilling arm, this articulated position can be in vertical internal activity, in horizontal unable activity), main arm's other end connects the one end of telescopic module, impel beam assembly locates on rotary connection spare, rotary connection spare connects the other end at telescopic module, main arm every single move hydro-cylinder and extend length change along with main arm every single move pitch hydro-cylinder's extension Liang Fuang of main arm every single move hydro-cylinder, the articulated main arm of main arm every single move along with the change of main arm every single move hydro-cylinder; and one end of the pushing Liang Fuang leveling cylinder is horizontally hinged with the telescopic assembly, and the other end of the pushing Liang Fuang leveling cylinder is horizontally hinged with the rotary connecting piece.

Further, the main arm pitching oil cylinder comprises a cylinder barrel, a guide rod, a piston rod and a piston, wherein the piston rod is of a hollow structure, one end of the piston rod, which is positioned in the cylinder barrel, is connected with the piston, the guide rod is fixedly connected to the inner bottom wall of the cylinder barrel, the piston rod is parallel to the guide rod, the piston rod and the piston are sleeved on the guide rod, the inner wall of the piston is in sliding sealing connection with the guide rod, the outer wall of the piston is in sliding sealing connection with the inner wall of the cylinder barrel, the piston divides the inner part of the cylinder barrel into a first cavity and a second cavity, the guide rod and the interior of the piston rod form a third cavity, the first cavity is connected with a first oil way, the second cavity is connected with a second oil way, the third cavity is connected with a third oil way, and the first cavity, the second cavity and the third cavity are not mutually connected; the propulsion Liang Fuang leveling cylinder comprises a rodless cavity and a rod cavity.

As a preferable scheme, the propulsion Liang Fuang leveling cylinder and the main arm pitching cylinder are positioned on the same side of the main arm, one end of the third oil way is connected with the rodless cavity, and the other end of the third oil way is connected with the third cavity. Because the telescopic component and the main arm are in the same straight line, and the straight line where the main arm is located is taken as a boundary, in the embodiment, a general main arm pitching oil cylinder is located below the boundary, and the pushing Liang Fuang leveling oil cylinder is also located below the boundary.

As another preferable scheme, the propulsion Liang Fuang leveling cylinder and the main arm pitching cylinder are respectively positioned on the upper side and the lower side of the main arm, one end of the third oil way is connected with the rod cavity, and the other end of the third oil way is connected with the third cavity. Because the telescopic component and the main arm are in the same straight line, and the straight line where the main arm is located is taken as a boundary, in the embodiment, a general main arm pitching oil cylinder is located below the boundary, and the pushing Liang Fuang leveling oil cylinder is located above the boundary.

Further, one end of the cylinder barrel bottom of the main arm pitching oil cylinder is provided with a first connecting lug, one end, far away from the first connecting lug, of the piston rod is provided with a second connecting lug, the first connecting lug is horizontally hinged with the main arm swinging seat, and the second connecting lug is horizontally hinged with the lower end face of the main arm.

Further, the outer wall of the guide rod is in sliding sealing connection with the inner wall of the piston rod, a distance exists between one end, close to the second connecting lug, of the guide rod and one end, close to the second connecting lug, of the inner cavity of the piston rod all the time, so that a third cavity is formed, and the third oil way penetrates through the guide rod and is communicated with the third cavity.

Further, the swing arm translation assembly comprises a main arm swing oil cylinder, a swing oil cylinder swing seat, a main arm swing follow-up oil cylinder and a push beam swing leveling oil cylinder;

One end of the swing cylinder swing seat is vertically hinged to the arm support table, one end of the main arm swing cylinder is horizontally hinged to the other end of the swing cylinder swing seat, and the other end of the main arm swing cylinder is horizontally hinged to one side surface of the main arm;

One end of the main arm swing follow-up cylinder is vertically hinged on the arm support supporting table, and the other end of the main arm swing follow-up cylinder is vertically hinged with the main arm swing seat;

One end of the propelling beam swinging leveling cylinder is vertically hinged to one side surface of the telescopic assembly, and the other end of the propelling beam swinging leveling cylinder is vertically hinged to the rotary connecting piece;

And the main arm swing follow-up oil cylinder is connected with the oil circuit of the push beam swing leveling oil cylinder.

Further, the telescopic assembly comprises a telescopic oil cylinder, a telescopic arm and a bidirectional hinging piece, the other end of the main arm is of an open hollow structure, the telescopic oil cylinder is fixed in the hollow structure, a piston rod of the telescopic oil cylinder is connected with the telescopic arm, one end of the telescopic arm is sleeved in the hollow structure, the other end of the telescopic arm is horizontally hinged with one end of the bidirectional hinging piece, and the other end of the bidirectional hinging piece is vertically hinged with the rotary connecting piece;

The cylinder barrel of the pushing Liang Fuang leveling cylinder is connected to the lower end face of the telescopic arm, and the piston rod of the pushing Liang Fuang leveling cylinder is horizontally hinged with the rotary connecting piece;

The cylinder barrel of the pushing beam swinging and leveling cylinder is connected to the side face of the telescopic arm, and the piston rod of the pushing beam swinging and leveling cylinder is vertically hinged with the rotary connecting piece.

Further, the propelling beam assembly comprises a middle support, a propelling beam, a rock drilling mechanism and a propelling Liang Fuang oil cylinder, one end of the middle support is connected with one end of the rotary connecting piece, which is far away from the telescopic assembly, the other end of the middle support is horizontally hinged with the middle part of the propelling beam, the rock drilling mechanism is arranged on the propelling beam, a cylinder barrel of a pitching oil cylinder of the propelling beam is horizontally hinged with the middle support, and a piston rod of the pitching oil cylinder of the propelling beam is horizontally hinged with one end of the propelling beam, which is close to the arm support supporting table.

Further, the propelling beam comprises a propelling beam main body, a propelling beam telescopic cylinder, a propelling beam mounting rack and a mounting sliding plate, wherein the middle support is fixedly connected with the propelling beam mounting rack, a cylinder barrel of the propelling beam telescopic cylinder is fixed on the propelling beam mounting rack, a piston rod of the propelling beam telescopic cylinder is connected with the mounting sliding plate, the propelling beam main body is in sliding connection with the propelling beam mounting rack, the propelling beam main body is fixedly mounted on the mounting sliding plate, and the rock drilling mechanism is arranged on the propelling beam main body.

Preferably, the main arm is of rectangular tube structure.

Compared with the prior art, the beneficial effects are that:

1. According to the invention, only one main arm pitching oil cylinder is used in the pitching translation assembly, so that the main arm is driven to do pitching motion, and the signal transmission function with the propelling beam leveling oil cylinder is also realized, so that the telescopic action of the propelling beam leveling oil cylinder and the telescopic action of the main arm pitching oil cylinder are in a direct linear relation, the linkage action is more direct, the overall layout space can be reduced, the space utilization rate is improved, the whole rock drilling boom structure is more compact, the rock drilling trolley is more convenient to arrange on the rock drilling trolley during steering, and the rock drilling trolley is beneficial to being arranged on the rock drilling trolley.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of a connection structure of a main arm swing cylinder and a main arm swing follower cylinder in the present invention.

Fig. 3 is a schematic view of the connection structure at the main arm pitch cylinder in the present invention.

Fig. 4 is a schematic view of the connection structure at the telescopic boom in the present invention.

Fig. 5 is a schematic view of the internal structure of the main arm pitch cylinder of the present invention.

Fig. 6 is a schematic diagram of an oil circuit connection structure of a main arm pitching oil cylinder and a pushing Liang Fuang leveling oil cylinder in the invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.

The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are orientations or positional relationships indicated by terms "upper", "lower", "left", "right", "long", "short", etc., based on the orientations or positional relationships shown in the drawings, this is merely for convenience in describing the present invention and simplifying the description, and is not an indication or suggestion that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present patent, and that it is possible for those of ordinary skill in the art to understand the specific meaning of the terms described above according to specific circumstances.

It should be specifically noted that, in order to clearly distinguish between the pitching motion and the left-right swinging motion of the structure, the "horizontal hinge" and the "vertical hinge" in the present embodiment are based on a simplified description of the drilling boom in a normal operation state, where "horizontal hinge" refers to that two connection ends are hinged by a horizontal hinge axis parallel to a horizontal plane, so that after the two connection ends are horizontally hinged, they can only relatively rotate in a vertical direction and cannot move in a horizontal direction; the vertical hinge means that the two connecting ends are hinged through a vertical hinge shaft perpendicular to the horizontal plane, so that the two connecting ends can only relatively rotate in the horizontal direction after being vertically hinged and cannot move in the vertical direction.

The technical scheme of the invention is further specifically described by the following specific embodiments with reference to the accompanying drawings:

example 1

As shown in fig. 1 and 2, the rock drilling boom comprises a boom support table 1, a main boom swing seat 2, a main boom 5, a telescopic component, a rotary connecting piece 11, a propelling beam assembly 12, a pitching translation component and a swinging arm translation component capable of driving the main boom 5 to horizontally swing and keeping the horizontal angle of the propelling beam assembly 12 unchanged, wherein the main boom 5 is of a rectangular tubular structure, one end of the main boom swing seat 2 is vertically hinged (the vertical hinge is hinged through a vertical winch shaft here, so that the rock drilling boom can be horizontally moved in a transverse direction and can not be longitudinally moved), the other end of the main boom is horizontally hinged with one end of the main boom 5 (the horizontal hinge is hinged through a horizontal winch shaft here, so that the hinge position can be longitudinally moved in a normal placement state of the rock drilling boom), the other end of the main boom 5 is connected with one end of the telescopic component, the propelling beam assembly 12 is arranged on the rotary connecting piece 11, the rotary connecting piece 11 is connected with the other end of the main boom 5 through a horizontal winch shaft, and the other end of the main boom is horizontally hinged with the main boom 5 along with the length of the main boom 5, and the pitching cylinder assembly is horizontally extended from the main boom side of the main boom 5, and the main boom is horizontally hinged with the main boom side of the main boom 5, and the main boom is horizontally connected with the main boom swing boom side of the main boom (boom is horizontally, and the main boom is vertically and the main boom is vertically and the boom is vertically and vertically boom, and the boom is vertically; one end of the pushing Liang Fuang leveling cylinder 10 is horizontally hinged with the telescopic component, and the other end of the pushing Liang Fuang leveling cylinder is horizontally hinged with the rotary connecting piece 11. Taking the example shown in fig. 2 to 4, two connecting ends are hinged vertically, namely by a vertical hinge shaft 100; the horizontal hinge, i.e. the two connection ends are hinged by a horizontal hinge shaft 200.

As shown in fig. 5, the main arm pitch cylinder 6 includes a cylinder 601, a guide rod 604, a piston rod 602, and a piston 603, where the piston rod 602 is of a hollow structure, the guide rod 604 is connected to the bottom inner wall of the cylinder 601, one end of the piston rod 602 located in the cylinder 601 is sleeved on the guide rod 604, the piston 603 is sleeved on the guide rod 604, the inner wall of the piston 603 is in sliding sealing connection with the guide rod 604, the outer wall of the piston 603 is in sliding sealing connection with the inner wall of the cylinder 601, the piston 603 divides the inner part of the cylinder 601 into a first cavity 607 and a second cavity 608, the guide rod 604 and the piston rod 602 form a third cavity 609, the first cavity 607 is connected with a first oil path, the second cavity 608 is connected with a second oil path, the third cavity 609 is connected with a third oil path 610, and the first cavity 607, the second cavity 608 and the third cavity 609 are not connected with each other; a first connecting lug 605 is arranged at one end of the cylinder barrel 601 of the main arm pitching cylinder 6, a second connecting lug 606 is arranged at one end of the piston rod 602 far away from the first connecting lug 605, the first connecting lug 605 is horizontally hinged with the main arm swinging seat 2, and the second connecting lug 606 is horizontally hinged with the lower end face of the main arm 5; the outer wall of the guide rod 604 is in sliding sealing connection with the inner wall of the piston rod 602, a distance is always kept between one end of the guide rod 604, which is close to the second connecting lug 606, and one end of the inner cavity of the piston rod 602, which is close to the second connecting lug 606, so as to form the third cavity 609, and the third oil path 610 penetrates through the guide rod 604 and is communicated with the third cavity 609. In this embodiment, one end of the guide rod 604 is connected to the bottom inner wall of the cylinder 601, and the other end is inserted into the hollow structure of the piston rod 602, and there is always a certain distance between the guide rod and the bottom of the cavity of the piston rod 602, where the third cavity 609 is located, and an exhaust port 611 is further connected in the third cavity 609; when the piston rod 602 extends, the space between the bottom of the cavity of the inner cavity of the piston rod 602 and the club head of the guide rod 604 is larger and larger, and the volume of the third cavity 609 is larger and larger; conversely, the volume of the third cavity 609 is smaller and smaller.

In this embodiment, the pushing Liang Fuang leveling cylinder 10 includes a rodless cavity and a rod cavity; the pushing Liang Fuang leveling cylinder 10 and the main arm pitching cylinder 6 are respectively located on the same side of the straight line where the main arm 5 is located, and because the telescopic component and the main arm 5 are located on the same straight line, the straight line where the main arm 5 is located is taken as a boundary, in this embodiment, the main arm pitching cylinder 6 is located below the boundary, and the pushing Liang Fuang leveling cylinder 10 is also located below the boundary; when one end of the third oil path 610 is connected with the rodless cavity, the other end is connected with the third cavity 609, and the main arm pitching oil cylinder 6 stretches out, the pushing Liang Fuang leveling oil cylinder 10 retracts to level the angle; the pushing Liang Fuang leveling cylinder 10 is a commonly used two-cavity cylinder, the extending length of a piston rod of the pushing Liang Fuang leveling cylinder has a linear relation with the extending length of a piston rod 602 of the main arm pitching cylinder 6, and the pushing Liang Fuang leveling cylinder 10 directly drives the pitching leveling of the pushing beam assembly 12 on the rotary connecting piece 11, so that the translation of the pushing beam assembly 12 is realized, and the angle between the pushing beam assembly 12 and a horizontal plane is kept unchanged; the specific working principle is as follows: when oil is fed into the first cavity 607, the piston rod 602 of the main arm pitching cylinder 6 extends out, the space between the end of the guide rod 604 and the bottom wall of the inner cavity of the piston rod 602 is increased due to the fixed guide rod 604, the volume of the third cavity 609 is increased, and the third cavity 609 is interconnected with the oil path of the rodless cavity, so that the oil in the rodless cavity is pressed into the third cavity 609 according to the principle that the volume of the oil is unchanged, and the piston rod of the propelling Liang Fuang leveling cylinder 10 is retracted; the linear relation between the extension length of the piston rod of the pushing Liang Fuang leveling cylinder 10 and the extension length of the piston rod 602 of the main arm pitching cylinder 6 satisfies that the main arm pitching angle is equal to and opposite to the pitching angle of the pushing beam assembly 12, that is, when the main arm 5 swings upwards by an angle A, the pushing beam assembly 12 swings downwards by an angle A correspondingly, so that the angle between the pushing beam assembly 12 and the horizontal plane is kept unchanged.

As shown in fig. 1 and 2, the swing arm translation assembly comprises a main arm swing cylinder 3, a swing cylinder swing seat 30, a main arm swing following cylinder 4 and a push beam swing leveling cylinder 9; one end of the swing cylinder swing seat 30 is vertically hinged to the arm support supporting table 1, one end of the main arm swing cylinder 3 is horizontally hinged to the other end of the swing cylinder swing seat 30, and the other end of the main arm swing cylinder 3 is horizontally hinged to one side surface of the main arm 5; one end of the main arm swing follow-up cylinder 4 is vertically hinged on the arm support supporting table 1, and the other end of the main arm swing follow-up cylinder is vertically hinged with the main arm swing seat 2; one end of the propelling beam swinging leveling cylinder 9 is vertically hinged to one side surface of the telescopic assembly, and the other end of the propelling beam swinging leveling cylinder is vertically hinged to the rotary connecting piece 11; and the main arm swing following cylinder 4 is in oil circuit interconnection with the push beam swing leveling cylinder 9. The swing arm translation assembly in this embodiment belongs to the prior art, and has the main function of realizing the left-right swing of the main arm 5, because the linear relationship exists between the extension and contraction of the swing leveling cylinder 9 of the push beam and the extension and contraction of the swing cylinder 3 of the main arm, the swing leveling cylinder 9 of the push beam drives the push beam assembly 12 to retract by a certain angle, so that the push beam assembly 12 moves in parallel in the same horizontal plane, and the horizontal direction of the drilling hole is not changed.

As shown in fig. 1 and 4, the telescopic assembly comprises a telescopic oil cylinder 7, a telescopic arm 8 and a bidirectional hinging piece, the other end of the main arm 5 is of an open hollow structure, the telescopic oil cylinder 7 is fixed in the hollow structure, a piston rod of the telescopic oil cylinder 7 is connected with the telescopic arm 8, one end of the telescopic arm 8 is sleeved in the hollow structure, the other end of the telescopic arm 8 is horizontally hinged with one end of the bidirectional hinging piece, and the other end of the bidirectional hinging piece is vertically hinged with the rotary connecting piece 11; the cylinder barrel of the pushing Liang Fuang leveling cylinder 10 is connected to the lower end face of the telescopic arm 8, and the piston rod of the pushing Liang Fuang leveling cylinder 10 is horizontally hinged with the rotary connecting piece 11; the cylinder barrel of the pushing beam swinging and leveling cylinder 9 is connected to the side face of the telescopic arm 8, and the piston rod of the pushing beam swinging and leveling cylinder 9 is vertically hinged with the rotary connecting piece 11. The telescopic assembly in the embodiment also belongs to the prior art, and mainly drives the rotary connecting piece 11 to move back and forth through the telescopic of the telescopic arm 8, so as to drive the propelling beam assembly 12 to move back and forth; the pushing Liang Fuang leveling cylinder 10 and the pushing beam swinging leveling cylinder 9 move back and forth together with the telescopic arm 8, so that the front and back, left and right and pitching movements of the pushing beam assembly 12 are not affected.

In this embodiment, the girder assembly 12 includes a middle bracket 13, a girder 15, a rock drilling mechanism 16 and a girder pitching cylinder 14, one end of the middle bracket 13 is connected to one end of the rotary connector 11, which is far away from the telescopic component, the other end is horizontally hinged to the middle part of the girder 15, the rock drilling mechanism 16 is disposed on the girder 15, a cylinder barrel of the girder pitching cylinder 14 is horizontally hinged to the middle bracket 13, and a piston rod of the girder pitching cylinder 14 is horizontally hinged to one end of the girder, which is close to the boom support table 1; the utility model provides a rock drilling mechanism, including walking beam 15, middle support 13, drilling mechanism, wherein, walking beam 15 includes walking beam main part 17, walking beam telescopic cylinder 19, walking beam mounting bracket 18 and installation slide 20, middle support 13 with walking beam mounting bracket 18 fixed connection, the cylinder of walking beam telescopic cylinder 19 is fixed on the walking beam mounting bracket 18, the piston rod of walking beam telescopic cylinder 19 is connected installation slide 20, walking beam main part 17 with walking beam mounting bracket 18 sliding connection, walking beam main part 17 fixed mounting is in on the installation slide 20, rock drilling mechanism 16 locates on the walking beam main part 17. The structure of the pushing beam assembly 12 in this embodiment is different from the prior art, when the main arm 5 is not moving, the pushing beam pitching cylinder 14 can directly drive the pitching of the pushing beam, so as to realize the fine adjustment of the position of the pushing beam 15, and the rock drilling mechanism 16 in the pushing beam assembly 12 is a main structure for drilling, and mainly comprises a drill rod and a drill rod pushing mechanism for driving the drill rod to drill.

As shown in fig. 6, the main arm pitch cylinder 6 and the thrust beam pitch cylinder 14 are connected by an oil path control system, the oil path control system comprises a main oil tank 102, a first control valve 103 and a second control valve 104, and one end of the first control valve 103 and one end of the second control valve 104 are respectively connected with the main oil tank 102; the other end of the first control valve 103 is connected with a first oil way a with the first cavity 607, and the other end of the first control valve 103 is also connected with a second oil way b with the second cavity 608; the other end of the second control valve 104 is connected with a fourth oil path d with the fourth cavity 21; the other end of the second control valve 104 is also connected with a fifth oil path e with the fifth cavity 22; the third cavity 609 is communicated with the fourth oil path d through the third oil path 610; the first oil way a is communicated with the fifth oil way e through a sixth oil way f; the sixth oil path f is provided with a check valve 108, the outlet side of the check valve 108 is also connected with a first oil return port T1 through a seventh oil path g, and the seventh oil path g is provided with a hydraulic control check valve 109.

In this embodiment, the first control valve 103 and the second control valve 104 are both O-type reversing valves; when the O-shaped reversing valve is in the middle position, the two corresponding oil ways are closed, and the oil ways are not communicated, so that the main arm pitching oil cylinder 6 and the pushing Liang Fuang leveling oil cylinder 10 can be fixed at the working position and still, and can not move greatly even if the external force acts; the first oil passage a and the second oil passage b are provided with a first balance valve 105; the end, close to the pushing Liang Fuang, of the third oil way 610 and the fourth oil way d is respectively connected with a second oil return port T2 through an overflow valve 107, a second balance valve 106 is arranged on the fourth oil way d and the fifth oil way e together, and the third oil way 610 and the fourth oil way d enter the second balance valve 106 after being communicated. The first balance valve 105 and the second balance valve 106 are two-way balance valves, and each oil line is provided with a sequence valve and a one-way valve to control the liquid flow in two directions (the first balance valve 15 and the second balance valve 16 can also be replaced by hydraulic locks and can also have the same effect); the first balance valve 105 enables the oil outlet speeds of the first oil way a and the second oil way b to be more uniform, so that the action of the main arm pitching oil cylinder 6 is more stable; the second balance valve 106 makes the oil outlet speeds of the fourth oil path d and the fifth oil path e more uniform, so that the main arm pitching oil cylinder 6 operates more stably. Relief valve 107 functions as: when the push Liang Fuang leveling cylinder 10 singly acts, if the piston rod of the push Liang Fuang leveling cylinder 10 is fully extended or fully retracted, the linkage of two hydraulic cylinders is performed, and oil in the fourth cavity 21 or the fifth cavity 22 of the push Liang Fuang leveling cylinder 10 can flow out from the overflow valve 107 to the second oil return port T2, so that the push Liang Fuang leveling cylinder 10 is prevented from being exploded.

The main working principle of the embodiment is as follows: the rock drilling boom is used on a rock drilling vehicle, and the oil way control system and the electric control system control the expansion and contraction of each oil cylinder to realize the change of drilling positions; when the left and right positions of the hole site are required to be adjusted, the main arm 5 is driven to swing left and right through the extension and contraction of the main arm swing oil cylinder 3, so that the left and right positions of the push beam assembly 12 are driven to change, and the push beam swing leveling oil cylinder 9 can drive the push beam assembly 12 to return to the angle so as to be parallel to the initial position; the left-right swing belongs to the prior art and does not need to be repeated one by one. When the upper and lower positions of the hole punching holes are required to be adjusted, the expansion and contraction of the main arm pitching oil cylinder 6 is required to be controlled, the high-pressure oil is pumped into the first cavity 607 by adjusting the first control valve 103, the piston rod 602 of the main arm pitching oil cylinder 6 extends out, the main arm 5 is lifted, and the position of the propelling beam assembly 12 is lifted; meanwhile, the volume of the third cavity 609 is increased, as the main arm pitching oil cylinder 6 is a three-cavity oil cylinder, and the third cavity 609 is connected with a rodless cavity oil way of the pushing Liang Fuang leveling oil cylinder 10, the oil in the rodless cavity of the pushing Liang Fuang leveling oil cylinder 10 flows into the third cavity, and the piston rod of the pushing Liang Fuang leveling oil cylinder 10 is retracted, so that the drilling direction is not changed; similarly, when the piston rod 602 of the main arm pitching oil cylinder 6 is retracted, the piston rod of the pushing Liang Fuang leveling oil cylinder 10 is extended, and a certain angle is upwards retracted. Thus, the pushing Liang Fuang leveling cylinder 10 drives the pushing beam assembly 12 to call back the same angle, so that the pushing beam assembly 12 moves in parallel in a vertical plane. In the embodiment, only one main arm pitching oil cylinder 6 is used in the pitching translation assembly, so that the effect of lifting an arm is achieved, the effect of transmitting signals with the propelling beam leveling oil cylinder 10 is achieved, the propelling beam leveling oil cylinder stretches 10 and stretches out and draws back with the main arm pitching oil cylinder 6 to form a direct linear relationship, linkage is more direct, overall layout space can be reduced, space utilization is improved, the whole rock drilling boom structure is compact, and the rock drilling boom is convenient to locate on a rock drilling vehicle.

Example 2

This embodiment is similar to embodiment 1, except that:

In this embodiment, the pushing Liang Fuang leveling cylinder 10 and the main arm pitching cylinder 6 are respectively located at the opposite sides of the main arm 5, one end of the third oil path 610 is connected to the rod cavity, and the other end is connected to the third cavity 609; in this embodiment, since the telescopic assembly and the main arm 5 are in the same straight line, the straight line where the main arm 5 is located is taken as a boundary, the main arm pitching cylinder 6 is located below the boundary, the cylinder barrel of the pushing Liang Fuang leveling cylinder 10 is connected above the boundary, and when the main arm pitching cylinder 6 extends out, the pushing Liang Fuang leveling cylinder 10 also extends out to level the angle; when the main arm pitch cylinder 6 is retracted, the push Liang Fuang leveling cylinder 10 is also retracted to level the angle.

It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims

1. The rock drilling drill boom comprises a boom support table (1), a main boom swing seat (2), a main boom (5), a telescopic component, a rotary connecting piece (11), a propelling beam assembly (12), a pitching translation component and a swing arm translation component capable of driving the main boom (5) to swing horizontally and keeping the horizontal angle of the propelling beam assembly (12) unchanged at the same time, wherein one end of the main boom swing seat (2) is vertically hinged on the boom support table (1), the other end of the main boom swing seat is horizontally hinged with one end of the main boom (5), the other end of the main boom (5) is connected with one end of the telescopic component, the propelling beam assembly (12) is arranged on the rotary connecting piece (11), The rotary connecting piece (11) is connected to the other end of the telescopic component, and is characterized in that the pitching translation component comprises a main arm pitching oil cylinder (6) and a propelling Liang Fuang leveling oil cylinder (10) with the extension length changing along with the extension length of the main arm pitching oil cylinder (6), one end of the main arm pitching oil cylinder (6) is horizontally hinged with the main arm swinging seat (2), and the other end of the main arm pitching oil cylinder is horizontally hinged to the lower end face of the main arm (5); One end of the pushing Liang Fuang leveling oil cylinder (10) is horizontally hinged with the telescopic component, and the other end of the pushing Liang Fuang leveling oil cylinder is horizontally hinged with the rotary connecting piece (11); The main arm pitching cylinder (6) comprises a cylinder barrel (601), a guide rod (604), a piston rod (602) and a piston (603), wherein the piston rod (602) is of a hollow structure, one end of the guide rod (604) is fixed on the inner bottom wall of the cylinder barrel (601), the guide rod (604) and the piston rod (602) are arranged in parallel, one end of the piston rod (602) positioned in the cylinder barrel (601) is connected with the piston (603), the piston rod (602) and the piston (603) are sleeved on the guide rod (604), the inner wall of the piston (603) is in sliding sealing connection with the guide rod (604), the outer wall of the piston (603) is in sliding sealing connection with the inner wall of the cylinder barrel (601), the piston (603) divides the interior of the cylinder barrel (601) into a first cavity (607) and a second cavity (608), a third cavity (609) is formed inside the guide rod (604) and the piston rod (602), the first cavity (607) is connected with a first oil way, the second cavity (608) is connected with a second oil way, the third cavity (609) is connected with a third oil way (610), and the first cavity (607), the second cavity (608) and the third cavity (609) are not communicated with each other; The propulsion Liang Fuang leveling oil cylinder (10) comprises a rodless cavity and a rod cavity; the swing arm translation assembly comprises a main arm swing oil cylinder (3), a swing oil cylinder swing seat (30), a main arm swing follow-up oil cylinder (4) and a push beam swing leveling oil cylinder (9); one end of the swing cylinder swing seat (30) is vertically hinged to the arm support supporting table (1), one end of the main arm swing cylinder (3) is horizontally hinged to the other end of the swing cylinder swing seat (30), and the other end of the main arm swing cylinder (3) is horizontally hinged to one side surface of the main arm (5); one end of the main arm swing follow-up cylinder (4) is vertically hinged on the arm support supporting table (1), and the other end of the main arm swing follow-up cylinder is vertically hinged with the main arm swing seat (2); One end of the propelling beam swinging leveling oil cylinder (9) is vertically hinged to one side surface of the telescopic assembly, and the other end of the propelling beam swinging leveling oil cylinder is vertically hinged to the rotary connecting piece (11); the main arm swing following cylinder (4) is connected with the oil way of the push beam swing leveling cylinder (9).

2. A rock drilling boom according to claim 1, characterized in that the push Liang Fuang leveling cylinder (10) is located on the same side of the main boom (5) as the main boom pitch cylinder (6), and that the third oil circuit (610) is connected to the rodless cavity at one end and to the third cavity (609) at the other end.

3. A rock drilling boom according to claim 1, characterized in that the push Liang Fuang leveling cylinder (10) and the main boom pitch cylinder (6) are located on opposite sides of the main boom (5), respectively, and that the third oil circuit (610) has one end connected to the rod cavity and the other end connected to the third cavity (609).

4. A rock drilling rig according to claim 2, characterized in that the outer wall of the bottom end of the cylinder barrel (601) of the main arm pitching cylinder (6) is provided with a first connecting lug (605), the end of the piston rod (602) away from the first connecting lug (605) is provided with a second connecting lug (606), the first connecting lug (605) is horizontally hinged with the main arm swinging seat (2), and the second connecting lug (606) is horizontally hinged with the lower end face of the main arm (5).

5. A rock drilling boom according to claim 4, characterized in that the outer wall of the guide rod (604) is in sliding sealing connection with the inner wall of the piston rod (602), that the end of the guide rod (604) close to the second connecting lug (606) is always spaced from the end of the inner cavity of the piston rod (602) close to the second connecting lug (606) to form the third cavity (609), and that the third oil circuit (610) passes through the guide rod (604) and opens into the third cavity (609).

6. A rock drilling boom according to claim 1, characterized in that the telescopic assembly comprises a telescopic cylinder (7), a telescopic arm (8) and a bidirectional hinge, the other end of the main arm (5) is of an open hollow structure, the telescopic cylinder (7) is fixed in the hollow structure, a piston rod of the telescopic cylinder (7) is connected with the telescopic arm (8), one end of the telescopic arm (8) is sleeved in the hollow structure, the other end of the telescopic arm is horizontally hinged with one end of the bidirectional hinge, and the other end of the bidirectional hinge is vertically hinged with the rotary connecting piece (11);

the cylinder barrel of the pushing Liang Fuang leveling cylinder (10) is connected to the lower end face of the telescopic arm (8), and the piston rod of the pushing Liang Fuang leveling cylinder (10) is horizontally hinged with the rotary connecting piece (11);

The cylinder barrel of the pushing beam swinging and leveling cylinder (9) is connected to the side face of the telescopic arm (8), and the piston rod of the pushing beam swinging and leveling cylinder (9) is vertically hinged with the rotary connecting piece (11).

7. A rock drilling boom according to claim 1, characterized in that the propelling beam assembly (12) comprises a middle bracket (13), a propelling beam (15), a rock drilling mechanism (16) and a propelling Liang Fuang cylinder (14), one end of the middle bracket (13) is connected with one end of the rotary connecting piece (11) far away from the telescopic assembly, the other end of the rotary connecting piece is horizontally hinged with the middle part of the propelling beam (15), the rock drilling mechanism (16) is arranged on the propelling beam (15), a cylinder barrel of the propelling Liang Fuang cylinder (14) is horizontally hinged with the middle bracket (13), and a piston rod of the propelling Liang Fuang cylinder (14) is horizontally hinged with one end of the propelling beam close to the arm support supporting table (1).

8. The rock drilling boom according to claim 7, characterized in that the feed beam (15) comprises a feed beam body (17), a feed beam telescopic cylinder (19), a feed beam mounting bracket (18) and a mounting slide plate (20), the middle bracket (13) is horizontally hinged to two sides of the middle part of the feed beam mounting bracket (18), a piston rod of the feed Liang Fuang cylinder (14) is horizontally hinged to one end of the feed beam mounting bracket (18) close to the boom support table (1), a cylinder barrel of the feed beam telescopic cylinder (19) is fixed on the feed beam mounting bracket (18), a piston rod of the feed beam telescopic cylinder (19) is connected with the mounting slide plate (20), the feed beam body (17) is slidably connected with the feed beam mounting bracket (18), the feed beam body (17) is fixedly mounted on the mounting slide plate (20), and the rock drilling mechanism (16) is arranged on the feed beam body (17).