Drill boom for drill jumbo

Abstract

The utility model discloses a drill boom for a drill jumbo. The drill boom comprises a propelling beam and a self-adaptive device located at the front end of the propelling beam. The self-adaptive device comprises a mounting shell and a driving air cylinder, the mounting shell is provided with a containing cavity, the driving air cylinder is located on one side of the mounting shell, and the output end of the driving air cylinder is located in the containing cavity; the accommodating cavity is provided with a connecting plate, the connecting plate is provided with a plurality of mounting holes, and a connecting column is inserted into each mounting hole; a connecting sleeve is arranged at the end, close to the propelling beam, of each connecting column, the connecting columns are connected with the output ends of the driving air cylinders based on the connecting sleeves, and the connecting columns are driven by the driving air cylinders to move or be fixed in the mounting holes. By arranging the self-adaptive device, the propelling beam can be attached to construction positions of different shapes, the drill boom can directly conduct machining, the angle adjusting step is reduced, and the drilling work efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction technical field especially relates to a drill arm for rock drilling jumbo. BACKGROUND

[0002] The drill arm is the main execution device for realizing the rock drilling function in the rock drilling jumbo and other drilling equipment, and is widely used in the rock drilling operation in the engineering fields such as mine, tunnel and subway.

[0003] The drill arm on the market moves to the flat surface to drill in the using process, and needs to adjust different angles or process the irregular rock surface into the flat rock surface to drill again when processing the irregular rock surface, which leads to the low efficiency of processing and drilling. UTILITY MODEL CONTENT

[0004] The utility model discloses a drill arm for rock drilling jumbo, which overcomes the defects of the prior art, and makes the advancing beam fit different shapes of construction positions, so that the drill arm can directly process, reduces the step of adjusting the angle, and improves the working efficiency of drilling.

[0005] Correspondingly, the utility model provides a drill arm for rock drilling jumbo, which comprises an advancing beam and a self-adaptive device located at the front end of the advancing beam.

[0006] The self-adaptive device comprises a mounting shell and a driving cylinder, the mounting shell has a containing cavity, the driving cylinder is located on one side of the mounting shell, and the output end of the driving cylinder is located in the containing cavity.

[0007] The containing cavity is provided with a connecting plate, the connecting plate has a plurality of mounting holes, and a connecting column is inserted into each mounting hole.

[0008] One end of each connecting column close to the advancing beam is provided with a connecting sleeve, the connecting column is connected with the output end of the driving cylinder based on the connecting sleeve, and the connecting column is driven to move or fix in the mounting hole by the driving cylinder.

[0009] Preferably, the connecting sleeve is provided with first connecting silica gel close to one end of the connecting column, and the first connecting silica gel is fixedly connected with the connecting column, and the connecting sleeve is provided with second connecting silica gel close to one end of the driving cylinder, and the second connecting silica gel is fixedly connected with the output end of the driving cylinder.

[0010] The first connecting silica gel is connected with the second connecting silica gel based on the spring.

[0011] Preferably, each of the connecting columns extends outward to form a clamping boss, and the clamping boss is located at one end of the connecting column close to the driving cylinder.

[0012] Preferably, a sponge is arranged in the accommodating cavity, and the sponge is arranged at the output end of the driving cylinder and on the surface of the connecting sleeve.

[0013] Preferably, a frosted coating is arranged on one end of the connecting column away from the driving cylinder.

[0014] Preferably, a brush is arranged on one side of the connecting plate close to the driving cylinder, and the brush is provided with lubricating oil.

[0015] Preferably, the drill arm further comprises a drill arm body and a hydraulic cylinder, the drill arm body is mounted on the advancing beam, and the drill arm body is driven by the hydraulic cylinder to move forward and backward on the advancing beam.

[0016] Preferably, the drill arm body comprises a rotating motor and a drill bit, the drill bit is inserted on the output end of the rotating motor, and the drill bit is driven by the rotating motor to rotate.

[0017] Preferably, the drill arm further comprises a connecting mechanism connected with the bottom of the advancing beam.

[0018] Preferably, the connecting mechanism comprises an extension arm and a rotating arm.

[0019] The rotating arm is rotatably connected with the bottom of the advancing beam, and the extension arm is connected with the rotating arm.

[0020] The drill arm of the utility model has the advantages of:

[0021] The utility model discloses a plurality of connecting columns are arranged on the connecting plate, the positions of the connecting columns corresponding contact are not same, and each connecting column is attached to the surface of the rock that needs to be constructed, the friction force of the advancing beam and the corresponding construction position is increased, and the risk of the drill arm deviating is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 is a structural schematic diagram of a drill arm in the present application,

[0024] Figure 2 is a structural schematic diagram of an adaptive device in the present application,

[0025] Figure 3 is a sectional view of the adaptive device in the present application,

[0026] Figure 4 is a sectional view of a connecting column in the present application.

[0027] In the drawings, 1, a pushing beam; 2, an adaptive device; 21, a mounting shell; 210, a containing cavity; 211, a connecting plate; 2111, a mounting hole; 212, a connecting column; 2121, a clamping boss; 22, a driving cylinder; 23, a connecting sleeve; 231, first connecting silica gel; 232, second connecting silica gel; 233, a spring; 3, a drill arm body; 31, a rotating motor; 32, a drill bit; 4, a connecting mechanism; 41, an extension arm; 42, a rotating arm. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] Figure 1 shows a structural schematic diagram of a drill arm in the present application, Figure 2 shows a structural schematic diagram of an adaptive device in the present application, Figure 3 shows a sectional view of the adaptive device in the present application, Figure 4 shows a sectional view of a connecting column in the present application, the drill arm comprises a pushing beam 1 and an adaptive device 2 located at the front end of the pushing beam 1, the pushing beam 1 is used for adjusting the position of the drill arm, so that the drill arm can be moved to a corresponding construction position, and the adaptive device 2 is used for enabling the pushing beam 1 to be attached to a construction position with different shapes.

[0030] The adaptive device 2 comprises a mounting shell 21 and a driving cylinder 22, the mounting shell 21 has a containing cavity 210, the driving cylinder 22 is located at one side of the mounting shell 21, and the output end of the driving cylinder 22 is located in the containing cavity 210; the containing cavity 210 is provided with a connecting plate 211, the connecting plate 211 has a plurality of mounting holes 2111, and each mounting hole 2111 is provided with a connecting column 212; each connecting column 212 is provided with a connecting sleeve 23 near one end of the advancing beam 1, the connecting column 212 is connected with the output end of the driving cylinder 22 based on the connecting sleeve 23, and the connecting column 212 is driven to move or be fixed in the mounting hole 2111 by the driving cylinder 22. In the embodiment, the connecting plate 211 is provided with thirty-six mounting holes 2111 and thirty-six connecting columns 212, and one connecting column 212 is correspondingly inserted into the corresponding mounting hole 2111.

[0031] When the advancing beam 1 moves to the front of a stone with an irregular surface, the adaptive device 2 is in contact with the surface of the stone, and each connecting column 212 is in close contact with the surface of the stone, and the position of the corresponding contact of each connecting column 212 is different, so that the moving distance of each connecting column 212 in the corresponding mounting hole 2111 is different, that is, when the adaptive device 2 is in contact with a triangular stone, the moving distance of the connecting column 212 in contact with the top of the stone towards the driving cylinder 22 is greater than that of the connecting column 212 in contact with the bottom of the stone towards the driving cylinder 22. Then the output end of the driving cylinder 22 moves forward, and there is a forward force on the connecting column 212, so that the connecting column 212 is in close contact with the surface of the stone, which is beneficial to the advancing beam 1 to be in close contact with different shapes of construction positions, increases the friction between the advancing beam 1 and the corresponding construction position, and reduces the risk of deviation of the drill boom.

[0032] Further, the connecting sleeve 23 is provided with a first connecting silica gel 231 near one end of the connecting column 212, and the first connecting silica gel 231 is fixedly connected with the connecting column 212. The connecting sleeve 23 is provided with a second connecting silica gel 233 near one end of the driving air cylinder 22, and the second connecting silica gel 233 is fixedly connected with the output end of the driving air cylinder 22. The first connecting silica gel 231 is connected with the second connecting silica gel 233 based on a spring 233. The spring 233 is used to strengthen the contact force of the connecting column 212 with the construction position and drive the corresponding connecting column 212 to restore to the original position. The first connecting silica gel 231 and the second connecting silica gel 233 are used to absorb and reduce vibration and impact. When the connecting column 212 contacts the construction position, the output end of the driving air cylinder 22 moves forward, an acting force is applied to the spring 233, the spring 233 is compressed, and the spring 233 applies a counteracting force to the corresponding connecting column 212, so that the connecting column 212 is tightly attached to the surface of the stone block. When the output end of the driving air cylinder 22 moves backward, an acting force is applied to the spring 233, the spring 233 is stretched, and the spring 233 applies an acting force to the corresponding connecting column 212, so that the connecting column 212 moves backward and restores to the original position, making it more convenient to fit the corresponding construction position next time.

[0033] Further, each connecting column 212 extends outward to form a clamping boss 2121 located near one end of the connecting column 212 close to the driving air cylinder 22. The clamping boss 2121 is used to limit the movement range of the connecting column 212, so as to avoid the connecting column 212 being driven away from the driving air cylinder 22 and being separated from the connecting plate 211, which causes the connecting column 212 to fall from the shell. This is beneficial to reduce the risk of the connecting column 212 being separated from the connecting plate 211 and improve the use stability of the self-adaptive device 2.

[0034] Further, the accommodating cavity 210 is provided with a sponge, which is distributed at the output end of the driving air cylinder 22 and on the surface of the connecting sleeve 23. The sponge is used to block dust from entering the driving air cylinder 22. The inside of the sponge is full of small pores or channels, which provide attachment points for dust and other particles. When the sponge contacts the dust, these particles are captured by the pore edges and remain inside the sponge, avoiding dust in the air from entering the driving air cylinder 22 and affecting the operation stability of the driving air cylinder 22. This is beneficial to reduce the resistance formed by dust in the driving air cylinder 22 and improve the operation efficiency of the equipment.

[0035] Further, the connecting column 212 is provided with an abrasive coating on the end away from the driving cylinder 22. The abrasive coating is used to strengthen the contact area of the connecting column 212 and the contacted stone, thereby strengthening the friction between the connecting column 212 and the contacted stone, avoiding the relative displacement of the connecting column 212 and the contacted stone during use, causing the drill arm to drill holes to deviate, which is beneficial to ensure the stability of the advancing beam 1 and reduce the risk of drill arm wear or damage caused by drill arm deviation.

[0036] Further, the connecting plate 211 is provided with a brush on the side close to the driving cylinder 22, and the brush is provided with lubricating oil. The brush is used to brush the surface of the connecting column 212 with lubricating oil, reducing the friction between the connecting column 212 and the connecting block, and at the same time, the lubricating oil forms an oil film between the connecting plate 211 and the connecting column 212. The oil film absorbs the dust floating in the air, avoiding the dust in the air entering the connecting sleeve 23 and forming large blocks of dirt inside the connecting sleeve 23, which increases the moving resistance of the driving cylinder 22. It is beneficial to reduce the resistance of the driving cylinder 22 in operation and improve the efficiency of the driving cylinder 22.

[0037] Further, the drill arm further comprises a drill arm body 3 and a hydraulic cylinder, the drill arm body 3 is installed on the advancing beam 1, and the drill arm body 3 is driven by the hydraulic cylinder to move back and forth on the advancing beam 1. The drill arm body 3 is used to drill holes on the corresponding rock, and the hydraulic cylinder is used to push the drill arm body 3 to move back and forth on the advancing beam 1 to change the position of the drill arm body 3, so that the drill arm body 3 can process a blast hole with sufficient depth in the rock. The hydraulic cylinder reduces the transmission gap between the hydraulic cylinder and the drill arm body 3, so that the hydraulic cylinder remains stable during operation, which is beneficial to protect the drill arm body 3 and reduce wear and failure rate.

[0038] Further, the drill arm body 3 comprises a rotating motor 31 and a drill bit 32, the drill bit 32 is inserted into the output end of the rotating motor 31, and the drill bit 32 is driven to rotate by the rotating motor 31. The rotating motor 31 adopts a high-efficiency and high-torque motor to provide better rotational speed and better drilling force for the drill bit 32, improve the drilling efficiency, and the drill bit 32 is integrated with a cooling system inside. During the operation of the drill bit 32, cooling liquid is sprayed inside the drill bit 32 to reduce the temperature of the drill bit 32 and also flow out of the hole together with the dust caused by drilling, avoiding the drill bit 32 from being stuck or deformed due to high temperature during the process, which is beneficial to prolong the service life of the drill arm body 3.

[0039] Further, the drill arm further comprises a connecting mechanism 4 connected with the bottom of the advancing beam 1.

[0040] Further, the connecting mechanism comprises an extension arm 41 and a rotating arm 42; the rotating arm 42 is rotationally connected with the bottom of the advancing beam, and the extension arm 41 is connected with the rotating arm 42.

[0041] In summary, the utility model discloses a plurality of connecting columns are arranged on the connecting plate, the positions of the connecting columns are different, and each connecting column is attached to the surface of the rock to be constructed, thereby increasing the friction between the advancing beam and the corresponding construction position and reducing the risk of deviation of the drill arm.

[0042] In addition, the drill arm for the rock drilling jumbo provided by the embodiments of the utility model is described in detail above, and the principles and implementation manners of the utility model are described by using specific examples in this paper. The above embodiment is only used to help understand the method and core idea of the utility model. Meanwhile, for the general technical personnel in the field, the specific implementation manner and application range of the utility model can be changed according to the idea of the utility model. In summary, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A drill boom for a jumbo, characterized in that, The drill arm comprises a propulsion beam and an adaptive device at the front end of the propulsion beam; The adaptive device comprises a mounting shell and a driving cylinder, the mounting shell has a receiving cavity, the driving cylinder is located at one side of the mounting shell, and the output end of the driving cylinder is located in the receiving cavity; The receiving cavity is provided with a connecting plate, the connecting plate has a plurality of mounting holes, and a connecting column is inserted in each mounting hole; Each connecting column is provided with a connecting sleeve near one end of the propulsion beam, the connecting column is connected with the output end of the driving cylinder based on the connecting sleeve, and the connecting column is driven to move or fix in the mounting hole by the driving cylinder; The connecting sleeve is provided with a first connecting silica gel near one end of the connecting column, and the first connecting silica gel is fixedly connected with the connecting column, and the connecting sleeve is provided with a second connecting silica gel near one end of the driving cylinder, and the second connecting silica gel is fixedly connected with the output end of the driving cylinder; The first connecting silica gel is connected with the second connecting silica gel based on a spring.

2. A drill boom for a jumbo as claimed in claim 1, characterized in that Each connecting column extends outward to form a clamping boss, and the clamping boss is located at one end of the connecting column close to the driving cylinder.

3. A drill boom for a jumbo as claimed in claim 1, characterized in that A sponge is arranged in the receiving cavity, and the sponge is distributed at the output end of the driving cylinder and the surface of the connecting sleeve.

4. The drill boom for a jumbo as claimed in claim 1, characterized in that, An abrasive coating is arranged on one end of the connecting column away from the driving cylinder.

5. The drill boom for a jumbo as claimed in claim 1, characterized in that, A brush is arranged on one side of the connecting plate close to the driving cylinder, and the brush is provided with lubricating oil.

6. A drill boom for a jumbo as claimed in claim 1, characterized in that The drill arm further comprises a drill arm body and a hydraulic cylinder, the drill arm body is mounted on the propulsion beam, and the drill arm body is driven to move forward and backward on the propulsion beam by the hydraulic cylinder.

7. A drill boom for a jumbo as claimed in claim 6, characterized in that The drill arm body comprises a rotating motor and a drill bit, the drill bit is inserted on the output end of the rotating motor, and the drill bit is rotated by the driving of the rotating motor.

8. A drill boom for a jumbo as claimed in claim 1, characterized in that The drill arm further comprises a connecting mechanism, and the connecting mechanism is connected with the bottom of the propulsion beam.

9. A drill boom for a jumbo as claimed in claim 8, characterized in that The connecting mechanism comprises an extension arm and a rotating arm; The rotating arm is rotatably connected with the bottom of the propulsion beam, and the extension arm is connected with the rotating arm.

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