Rock drill working arm with overturning and folding functions

Abstract

The utility model belongs to the technical field of rock drill working arms, and particularly relates to a rock drill working arm with an overturning and folding function, which comprises a mounting frame, a first working arm is connected to the top of the mounting frame, a second working arm is rotatably connected to one end of the first working arm, and a connecting arm is rotatably connected to one end of the second working arm. The shifting block shifts the movable block to drive the limiting clamping pin to contract, at the moment, one end of the limiting clamping pin can contract into the mounting base from the butt joint groove, then the butt joint block at the top of the bearing cushion block is inserted into the butt joint groove in the bottom of the connecting block, and at the moment, the shifting block is loosened, so that the limiting clamping pin can be popped out under the action of the spring; therefore, the bearing cushion block can be conveniently installed at the end of the first working arm, and the situation that when the working arm of the rock drill is turned over and folded, the working arm is directly in contact with the bearing frame, and consequently the working arm is abraded is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rock drill working arm technical field, concretely relates to a rock drill working arm with turnover folding function. BACKGROUND

[0002] Rock drill is indispensable key equipment in mining, tunnel excavation and other engineering, and it breaks rock through mechanical impact and rotation, realizes drilling operation. According to power source, it has various types. Pneumatic rock drill is simple in structure, easy to operate and maintain with compressed air as power source. Electric rock drill is driven by motor, and energy is convenient to obtain. Internal combustion rock drill works by using gasoline explosion force, and it is suitable for site without power supply and gas supply. Hydraulic rock drill is driven by hydraulic pressure, and it has high drilling speed and impact power. According to advancing mode, it can be divided into hand-held type, air leg type and the like. When working, the impact mechanism of rock drill drives piston to impact steel drill to break rock, and the rotary mechanism drives steel drill to rotate, and rock debris is discharged by using pressure water or compressed air. It is widely applied to mining, railway and highway tunnel construction, water conservancy project construction and other fields, and it significantly improves rock drilling efficiency, and is important equipment for modern engineering construction.

[0003] At present, the existing rock drill working arm is usually driven by hydraulic cylinder to turn over and fold during use, and in order to improve the stability of the working arm after turning over and folding, a bearing frame needs to be installed on the rock drill to assist supporting the working arm after turning over and folding, but the conventional rock drill working arm often does not have a good protection structure, so the contact surface between the working arm and the bearing frame can be abraded, thereby increasing the cost of later maintenance. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a rock drill working arm with turnover folding function, and aims at solving the problem that the existing rock drill working arm is usually driven by hydraulic cylinder to turn over and fold during use, and in order to improve the stability of the working arm after turning over and folding, a bearing frame needs to be installed on the rock drill to assist supporting the working arm after turning over and folding, but the conventional rock drill working arm often does not have a good protection structure, so the contact surface between the working arm and the bearing frame can be abraded, thereby increasing the cost of later maintenance.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a rock drill working arm with turnover folding function, including mounting frame, the top of mounting frame is connected with first working arm, one end of first working arm is rotatably connected with second working arm, one end of second working arm is rotatably connected with connecting arm, the outer wall of first working arm is installed with first hydraulic cylinder, the outer wall of second working arm is installed with second hydraulic cylinder;

[0006] The bottom of the mounting frame is connected with a rack, the top of the rack is provided with a bearing frame, one end of the first working arm is fixedly connected with a mounting seat, the bottom of the mounting seat is provided with a bearing pad, the top of the bearing pad is fixedly connected with two abutting blocks, the outer wall of the two abutting blocks is provided with a limiting clamping groove, the end of the mounting seat is connected with a connecting block, the bottom of the connecting block is provided with an abutting groove, the inside of the mounting seat is provided with a spring, the end of the spring is connected with a movable block, and one end of the movable block is fixedly connected with a limiting clamping pin.

[0007] As the utility model discloses a rock drill working arm with turnover folding function preferably, the size between the abutting block and the abutting groove is matched.

[0008] As the utility model discloses a rock drill working arm with turnover folding function preferably, one end of the limiting clamping pin extends to the inside of the abutting groove.

[0009] As the utility model discloses a rock drill working arm with turnover folding function preferably, the limiting clamping pin can form an elastic structure with the mounting seat through the spring and the movable block.

[0010] As the utility model discloses a rock drill working arm with turnover folding function preferably, the outer wall of the movable block is fixedly connected with a pushing block.

[0011] As the utility model discloses a rock drill working arm with turnover folding function preferably, the outer wall of the mounting seat is provided with an opening, and the pushing block extends to the outside through the opening of the outer wall of the mounting seat.

[0012] As the utility model discloses a rock drill working arm with turnover folding function preferably, the size between the end of the limiting clamping pin, away from the movable block, and the limiting clamping groove is matched.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] When the pushing block drives the movable block to drive the limiting clamping pin to retract, one end of the limiting clamping pin retracts from the abutting groove to the inside of the mounting seat, then the abutting block at the top of the bearing pad is inserted into the abutting groove at the bottom of the connecting block, at this time, the limiting clamping pin can be popped out under the action of the spring by loosening the pushing block and is inserted into the limiting clamping groove on the outer wall of the abutting block, so that the bearing pad can be conveniently installed at the end of the first working arm, then the bearing pad can play an auxiliary bearing role on the contact surface between the working arm and the bearing frame, and the abrasion of the working arm caused by the direct contact between the working arm and the bearing frame during the turnover and folding of the rock drill working arm is avoided.

[0015] Through the setting of the butt joint block, the connecting block and the butt joint groove, when the bearing pad block is installed, only the butt joint block needs to be embedded into the butt joint groove with the same size to play a positioning and installation role, thereby improving the convenience of the bearing pad block installation. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0017] Figure 1 It is a front view structural schematic diagram of the present application;

[0018] Figure 2 It is a working arm upside-down structural schematic diagram of the present application;

[0019] Figure 3 It is a working arm disassembled upside-down structural schematic diagram of the present application;

[0020] Figure 4 It is an A enlarged structural schematic diagram of the present application;

[0021] Figure 5 It is a B enlarged structural schematic diagram of the present application.

[0022] In the drawings: 1, mounting frame; 2, first working arm; 3, second working arm; 4, connecting arm; 5, first hydraulic oil cylinder; 6, second hydraulic oil cylinder; 7, rack; 8, bearing frame; 9, mounting seat; 10, bearing pad block; 11, butt joint block; 12, limiting clamping groove; 13, connecting block; 14, butt joint groove; 15, spring; 16, movable block; 17, limiting clamping pin; 18, push block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Please refer to Figures 1-5 The present application provides the following technical scheme: a rock drill working arm with a turnover folding function, comprising a mounting frame 1, the top of the mounting frame 1 is connected with a first working arm 2, one end of the first working arm 2 is rotatably connected with a second working arm 3, one end of the second working arm 3 is rotatably connected with a connecting arm 4, the outer wall of the first working arm 2 is provided with a first hydraulic oil cylinder 5, and the outer wall of the second working arm 3 is provided with a second hydraulic oil cylinder 6.

[0025] The bottom of the mounting frame 1 is connected to the frame 7, and the top of the frame 7 is equipped with a support frame 8. One end of the first working arm 2 is fixedly connected to the mounting base 9. The bottom of the mounting base 9 is equipped with a support pad 10. The top of the support pad 10 is fixedly connected to two docking blocks 11. The outer wall of the two docking blocks 11 is provided with a limit slot 12. The end of the mounting base 9 is connected to a connecting block 13. The bottom of the connecting block 13 is provided with a docking groove 14. The inside of the mounting base 9 is provided with a spring 15. The end of the spring 15 is connected to a movable block 16. One end of the movable block 16 is fixedly connected to a limit pin 17.

[0026] Preferably, the dimensions of the mating block 11 and the mating groove 14 are compatible, one end of the limiting pin 17 extends through into the interior of the mating groove 14, and the limiting pin 17 can form an elastic structure with the mounting base 9 through the spring 15 and the movable block 16.

[0027] In practical use, by moving the movable block 16 with the lever 18, the limiting pin 17 is retracted. At this time, one end of the limiting pin 17 will retract from the docking groove 14 into the mounting base 9. Then, the docking block 11 at the top of the bearing pad 10 is inserted into the docking groove 14 at the bottom of the connecting block 13. At this time, by releasing the lever 18, the limiting pin 17 can be ejected under the action of the spring 15 and inserted into the limiting groove 12 on the outer wall of the docking block 11. Thus, the bearing pad 10 can be conveniently installed at the end of the first working arm 2. The bearing pad 10 can then play an auxiliary bearing role on the contact surface between the working arm and the bearing frame 8, preventing the working arm of the rock drill from directly contacting the bearing frame 8 when it is flipped and folded, thus avoiding wear on the working arm.

[0028] Furthermore, by setting up the docking block 11, connecting block 13, and docking groove 14, when installing the bearing pad 10, it is only necessary to embed the docking block 11 into the docking groove 14 of the same size to achieve the purpose of positioning and installation, thereby improving the convenience of installing the bearing pad 10.

[0029] Preferably, the outer wall of the movable block 16 is fixedly connected to the lever block 18, the outer wall of the mounting base 9 has an opening, and the lever block 18 extends to the outside through the opening of the outer wall of the mounting base 9. The end of the limiting pin 17 away from the movable block 16 is matched with the size of the limiting slot 12.

[0030] In practical use, by moving the movable block 16 with the pusher 18, the limiting pin 17 is retracted. At this time, one end of the limiting pin 17 will disengage from the limiting groove 12 on the outer wall of the docking block 11. Then, by pulling the bearing pad 10, the docking block 11 is disengaged from the docking groove 14 at the bottom of the connecting block 13, so that the bearing pad 10 can be easily disassembled.

[0031] The working principle is as follows: first, the movable block 16 is driven by the dial block 18 to retract the limiting pin 17, at this time, one end of the limiting pin 17 is retracted from the abutting groove 14 to the inside of the mounting seat 9, then the abutting block 11 on the top of the bearing pad block 10 is inserted into the abutting groove 14 at the bottom of the connecting block 13, at this time, the limiting pin 17 can be popped out into the limiting slot 12 on the outer wall of the abutting block 11 under the action of the spring 15 by loosening the dial block 18, so that the bearing pad block 10 can be conveniently installed at the end of the first working arm 2, then the bearing pad block 10 can play an auxiliary bearing role on the contact surface between the working arm and the bearing frame 8, avoiding the direct contact between the rock drill working arm and the bearing frame 8 when the working arm is overturned and folded, causing the working arm to be worn, and through the arrangement of the abutting block 11, the connecting block 13 and the abutting groove 14, when the bearing pad block 10 is installed, only the abutting block 11 needs to be embedded in the abutting groove 14 of the same size to play a positioning and installation role, thereby improving the convenience of installing the bearing pad block 10, and when disassembling, first, the first working arm 2 is lifted at one end by the first hydraulic oil cylinder 5, then the movable block 16 is driven by the dial block 18 to retract the limiting pin 17, at this time, one end of the limiting pin 17 is separated from the limiting slot 12 on the outer wall of the abutting block 11, then the abutting block 11 is separated from the abutting groove 14 at the bottom of the connecting block 13 by pulling the bearing pad block 10, so that the bearing pad block 10 can be conveniently disassembled.

[0032] Finally, it should be noted that: the above is only the preferred embodiment of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rock drill boom with a flip-folding function, comprising a mounting frame (1), characterized in that: The top of mounting frame (1) is connected with first working arm (2), one end of first working arm (2) is rotatably connected with second working arm (3), one end of second working arm (3) is rotatably connected with connecting arm (4), the outer wall of first working arm (2) is provided with first hydraulic cylinder (5), the outer wall of second working arm (3) is provided with second hydraulic cylinder (6); The bottom of mounting frame (1) is connected with rack (7), the top of rack (7) is provided with bearing frame (8), one end of first working arm (2) is fixedly connected with mounting seat (9), the bottom of mounting seat (9) is provided with bearing pad (10), the top of bearing pad (10) is fixedly connected with two butt blocks (11), the outer wall of two butt blocks (11) is provided with limiting clamping groove (12), the end of mounting seat (9) is connected with connecting block (13), the bottom of connecting block (13) is provided with butt groove (14), the inside of mounting seat (9) is provided with spring (15), the end of spring (15) is connected with movable block (16), one end of movable block (16) is fixedly connected with limiting clamping pin (17).

2. A rock drill boom with a flip-folding function according to claim 1, characterized in that: The size between butt block (11) and butt groove (14) is matched.

3. A rock drill boom with a flip-folding function according to claim 1, characterized in that: One end of limiting clamping pin (17) extends to the inside of butt groove (14).

4. A rock drill boom with a flip-folding function according to claim 1, characterized in that: Limiting clamping pin (17) can form elastic structure with mounting seat (9) through spring (15) and movable block (16).

5. A rock drill boom with a flip-folding function according to claim 1, characterized in that: The outer wall of movable block (16) is fixedly connected with push block (18).

6. A rock drill boom with a flip-folding function according to claim 5, characterized in that: The outer wall of mounting seat (9) is provided with opening, and push block (18) extends to the outside through the opening of mounting seat (9).

7. A rock drill boom with a flip-folding function according to claim 1, characterized in that: The size between the end of limiting clamping pin (17) away from movable block (16) and limiting clamping groove (12) is matched. The size between the end of limiting clamping pin (17) away from movable block (16) and limiting clamping groove (12) is matched.

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