Anti-skid device for bottom pry of rock drill

Abstract

The utility model discloses an anti-skid device for a bottom pry of a rock drill, which relates to the technical field of rock drills and comprises a bottom pry connecting rod. The bottom prying device further comprises a plurality of hinge tables, the hinge tables are evenly distributed on one side of the outer portion of the bottom prying connecting rod, anti-skid claws are connected to the front ends of the hinge tables, claw hooks are integrally formed at the front ends of the anti-skid claws, the claw hooks are in a sharp nail shape, and the claw hooks and the anti-skid claws are approximately in an L shape. The anti-skid claw is hinged to the bottom pry rod through the bolt, when a drill rod conducts drilling operation, acting force capable of enabling the bottom pry to move backwards can be generated, the acting force is conducted to the anti-skid claw, due to the fact that the tail of the claw hook is very sharp, the stress area is small, and the acting pressure intensity between the claw hook and a roadway bottom plate is large, the claw hook can prick into the roadway bottom plate, and the friction force between the claw hook and the bottom plate can be increased; meanwhile, a pair of acting force is formed on the roadway top and bottom plate with the gas cap, the bottom pry is prevented from sliding, and construction stability of the base and the whole rock drill is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to rock drill technology field, concretely for a rock drill bottom pry antiskid device. BACKGROUND

[0002] Rock drill is a kind of medium deep hole rock drill equipment with compressed air as power, with simple structure, easy to disassemble and transport, high efficiency and other characteristics, usually cooperate with disc type drill stand and use in pairs, rock drill needs to be lifted by air jack when working and be pressed against roadway roof, air jack and bottom pry are perpendicular, respectively act on roadway roof and floor, to keep the stability of drill rod drilling.But when construction inclined row blast hole, because air jack and bottom pry form a certain inclination angle, rock drill drills, bottom pry is easy to slide back on roadway floor, air jack cannot effectively act on roof, rock drill stability is poor, position will constantly move back, leading to poor blast hole construction accuracy.

[0003] Therefore, we propose a rock drill bottom pry antiskid device to solve the problems mentioned above. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a rock drill bottom pry antiskid device to solve the problems mentioned in the background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a rock drill bottom pry antiskid device, including bottom pry connecting rod;

[0006] Further comprising:

[0007] The hinged table is provided with a plurality of and evenly distributed on the outside of bottom pry connecting rod one side, the front end of the hinged table is connected with antiskid claw, the front end of the antiskid claw is integrally formed with claw hook, claw hook is sharp nail shape, and claw hook and antiskid claw are approximately L-shaped in appearance.

[0008] Preferably, the antiskid claw is integrally formed with a hinge hole on the side close to the hinged table, the surface of the hinged table is provided with threaded holes on both sides, the antiskid claw and the hinged table are connected by hinge bolt, and the hinge bolt is connected with the hinge hole after being screwed with the threaded hole.

[0009] Preferably, the antiskid claw is integrally formed with a hinge hole on the side close to the hinged table, the surface of the hinged table is provided with threaded holes on both sides, the antiskid claw and the hinged table are connected by hinge bolt, and the hinge bolt is connected with the hinge hole after being screwed with the threaded hole.

[0010] Preferably, the antiskid claw is integrally formed with a hinge hole on the side close to the hinged table, the surface of the hinged table is provided with threaded holes on both sides, the antiskid claw and the hinged table are connected by hinge bolt, and the hinge bolt is connected with the hinge hole after being screwed with the threaded hole.

[0011] Preferably, the antiskid claw and claw hook are made of steel material.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] 1, the inclined row blast hole when the rock drill construction, the anti -skid claw and the bottom crowbar are hinged through bolt, the drill rod drilling operation, can make the bottom crowbar force to the back, the force conduction to the anti -skid claw, because the claw hook tail is very sharp, the stress area is smaller, and the pressure intensity with the roadway floor is larger, will make the claw hook into the roadway floor, can increase the friction with the floor, simultaneously with the gas top forms a pair of force to the roadway roof and floor, prevents the bottom crowbar to slide, guarantees the stability of the bottom seat and whole rock drill construction, guarantees the construction accuracy.

[0014] 2, the anti -skid claw and the bottom crowbar connecting rod adopt hinge connection, the anti -skid claw can swing around the hinge table, and the anti -skid claw is independently movable between the bottom crowbar connecting rod, and can be at different angles, the anti -skid claw is more easily attached to the uneven floor of the underground roadway, and more easily provides a stress point to generate sufficient friction, sufficient to ensure the stability during construction. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the anti -skid claw and hinge table structure schematic diagram of the utility model;

[0017] Figure 3 It is the whole structure side view of the utility model;

[0018] In the drawing: 1, bottom crowbar connecting rod;2, hinge table;3, anti -skid claw;4, claw hook;5, threaded hole;6, hinge hole;7, hinge bolt;8, limiting rod;9, external thread;10, internal thread. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0020] Please refer to Figures 1-3 The utility model provides an embodiment: a rock drill bottom crowbar anti -skid device, including bottom crowbar connecting rod 1;

[0021] Further comprising:

[0022] The hinge table 2 is provided with a plurality of and is evenly distributed on the outside of the bottom crowbar connecting rod 1, and the front end of the hinge table 2 is connected with the anti -skid claw 3, and the front end of the anti -skid claw 3 is integrally formed with the claw hook 4, the claw hook 4 is sharp and nail-shaped, and the claw hook 4 and the anti -skid claw 3 are approximately L-shaped.

[0023] When the rock drill is used to construct inclined row holes, the anti-skid claw 3 is hingedly connected with the bottom crowbar connecting rod 1 through bolts, and when the drill rod is used for drilling, a backward force can be generated to the bottom crowbar, which is transmitted to the anti-skid claw 3. Because the tail of the claw hook 4 is very sharp, the stress area is small, and the pressure intensity acting on the roadway floor is large, the claw hook 4 can be penetrated into the roadway floor, the friction force with the floor can be increased, and a pair of forces acting on the roadway top and bottom plates can be formed with the gas roof to prevent the bottom crowbar from sliding and ensure the stability of the base and the entire rock drill construction.

[0024] Please refer to Figure 2 , the anti-skid claw 3 is integrally formed with a hinge hole 6 on one side close to the hinge table 2, the hinge table 2 is provided with threaded holes 5 on both sides of the surface, the anti-skid claw 3 is connected with the hinge table 2 through hinge bolts 7, and the hinge bolts 7 are connected with the hinge hole 6 after being screwed with the threaded holes 5. The hinge bolts 7 are used to fix the anti-skid claw 3, which facilitates the movement and quick disassembly of the anti-skid claw 3.

[0025] Please refer to Figure 2 , the anti-skid claw 3 is provided with a limiting rod 8 on both upper and lower sides close to one end of the hinge table 2. The limiting rod 8 is used to limit the swing range of the anti-skid claw 3 to prevent the anti-skid claw 3 from being too large to effectively engage into the roadway floor.

[0026] Please refer to Figure 2 , the anti-skid claw 3 is provided with an internal thread 10 on both upper and lower sides close to one end of the hinge table 2, and the limiting rod 8 is provided with an external thread 9 on the surface of one end close to the anti-skid claw 3. The limiting rod 8 is fixed outside the anti-skid claw 3 through threaded connection, and can be disassembled according to requirements.

[0027] Please refer to Figure 1 , the anti-skid claw 3 and the claw hook 4 are made of steel material, which has high hardness, good wear resistance and long service life.

[0028] Working principle: when the rock drill is used to construct inclined row holes, the anti-skid claw 3 is hingedly connected with the bottom crowbar connecting rod 1 through bolts, and when the drill rod is used for drilling, a backward force can be generated to the bottom crowbar, which is transmitted to the anti-skid claw 3. Because the tail of the claw hook 4 is very sharp, the stress area is small, and the pressure intensity acting on the roadway floor is large, the claw hook 4 can be penetrated into the roadway floor, the friction force with the floor can be increased, and a pair of forces acting on the roadway top and bottom plates can be formed with the gas roof to prevent the bottom crowbar from sliding and ensure the stability of the base and the entire rock drill construction.

[0029] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than by the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A rock drill bottom bar anti-skid device, comprising a bottom bar connecting rod (1); characterized in that Further comprising: a hinged platform (2) is arranged on the outer side of the bottom bar connecting rod (1), the front end of the hinged platform (2) is connected with an anti-skid claw (3), the front end of the anti-skid claw (3) is integrally formed with a claw hook (4), the claw hook (4) is in the shape of a sharp nail, and the claw hook (4) is approximately L-shaped in shape.

2. A skid preventing device for a rock drill machine bottom sled according to claim 1, characterized in that: The anti-skid claw (3) is integrally formed with a hinged hole (6) on one side close to the hinged platform (2), the surface of the hinged platform (2) is provided with a threaded hole (5) on both sides, the anti-skid claw (3) and the hinged platform (2) are connected through a hinged bolt (7), and the hinged bolt (7) is connected with the hinged hole (6) after being threadedly connected with the threaded hole (5).

3. A skid preventing device for a rock drill machine bottom sled according to claim 1, characterized in that: The anti-skid claw (3) is provided with a limiting rod (8) on the upper and lower sides of one end close to the hinged platform (2).

4. A skid preventing device for a rock drill machine bottom sled according to claim 3, characterized in that: The anti-skid claw (3) is provided with an inner thread (10) on the upper and lower sides of one end close to the hinged platform (2), and the surface of one end of the limiting rod (8) close to the anti-skid claw (3) is provided with an outer thread (9), and the limiting rod (8) is fixed outside the anti-skid claw (3) through threaded connection.

5. A skid preventing device for a rock drill machine according to claim 1, characterized in that: The anti-skid claw (3) and the claw hook (4) are made of steel.

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