CN218816292U - Drill bit holder for coal mine open type drilling machine - Google Patents

Abstract

The utility model discloses a drill bit holder for a coal mine open type drilling machine, which comprises a base, wherein a screw driven by a motor is horizontally arranged in the base, and positive and negative threads at two ends of the screw are respectively provided with a moving block in a threaded sleeve manner; the moving block is upwards movably penetrated through the moving opening of the base and extends outwards; two fixing frames are vertically fixed on the base; the moving blocks are arranged at the outer sides of the two fixed frames respectively, and a supporting plate is arranged on the base between the two fixed frames; the side surfaces of the two moving blocks which are opposite to each other are provided with side clamping plates; the top surface of the moving block is provided with a groove downwards vertically, a sliding block is arranged in the groove in a vertical sliding mode, and an inclined plane matched with the fixing frame is arranged at the top of the sliding block extending out of the groove; the opposite sides of the tops of the two moving blocks are provided with upper pressing plates which penetrate through moving grooves in the side faces of the moving blocks and are fixedly connected to the side faces of the sliding blocks. This device need not artifical manual regulation, uses more simple and conveniently, and is more firm to the drill bit centre gripping, is showing the fixed efficiency who improves the drill bit.

Description

Drill bit holder for coal mine open type drilling machine

Technical Field

The utility model belongs to colliery rig equipment field, concretely relates to colliery is drill bit holder for open rig.

Background

The drilling mechanical equipment is special drilling equipment mainly used for underground drilling of coal mines, drilling of hydroelectric engineering, grouting and drilling of dams, bridges and tunnel foundations and the like. In the construction process of the coal mine open type drilling machine, a drill bit clamp is needed to be used for fixing the drill bit during the centering operation of the drill bit and a drill rod. The existing drill bit holder is generally manually operated, two clamping plates which are sleeved by threads are enabled to be close to two sides of a drill bit through manually rotating a screw rod, and the tops of the two clamping plates are locked through bolts, so that the drill bit is clamped by the clamping plates. The existing clamp holder is time-consuming and labor-consuming to operate, low in efficiency and seriously affects the construction progress of a drilling machine.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model aims to provide a colliery is drill bit holder for open rig, this device need not artifical manual regulation, uses more simple and conveniently, and is more firm to the drill bit centre gripping, is showing the fixed efficiency who improves the drill bit.

In order to realize the purpose, the utility model discloses a technical scheme be:

a drill bit holder for a coal mine open type drilling machine comprises a base, wherein a screw driven by a motor is horizontally arranged in the base, and positive and negative threads at two ends of the screw are respectively and threadedly sleeved with a moving block; the moving block is upwards movably penetrated through the moving opening of the base and extends outwards; two fixing frames are vertically fixed on the base; the moving blocks are arranged at the outer sides of the two fixed frames respectively, and a supporting plate is arranged on the base between the two fixed frames; the side surfaces of the two moving blocks which are opposite to each other are provided with side clamping plates; a groove is vertically formed in the top surface of the moving block downwards, a sliding block is vertically arranged in the groove in a sliding mode, and an inclined plane matched with the fixing frame is arranged at the top of the sliding block extending out of the groove; the opposite sides of the tops of the two moving blocks are provided with upper pressing plates, and the upper pressing plates penetrate through the moving grooves on the side surfaces of the moving blocks and are fixedly connected to the side surfaces of the sliding blocks.

Preferably, a spring is mounted at the bottom in the groove and abuts against the bottom of the sliding block.

Preferably, the fixing frame is a door-shaped frame.

Preferably, the top of the fixing frame is fixedly provided with a butting block, and the bottom of the butting block is provided with a butting surface matched with the inclined surface of the sliding block.

Preferably, the bottom of the supporting plate is connected with the base through a spring seat.

Preferably, the side clamping plate is arranged on the moving block through an elastic telescopic rod which is horizontally arranged.

Preferably, the side clamping plate and the supporting plate are both provided with notches matched with the drill bit.

The utility model discloses the beneficial effect who has does:

1. the utility model discloses need not artifical manual regulation, only need pass through motor drive, can realize that the centre gripping of horizontal direction upside splint, the crimping of vertical direction top board and layer board are fixed, use more simple and convenient, the drill bit is fixed more stable firm.

2. All seted up on side splint and the layer board with drill bit matched with notch, can play effectual joint limiting displacement to the drill bit with the drill bit centre gripping in the notch, the centre gripping is fixed more firmly.

3. Under the supporting effect of the spring seat to the supporting plate, the clamping of the two upper pressing plates above the spring seat is matched, so that the drill bit placed on the supporting plate can be effectively clamped and fixed in the vertical direction.

4. The utility model discloses the side plate is installed on the movable block through the elasticity telescopic link that the level set up, under elasticity telescopic link's elasticity supporting role, can make side plate and drill bit butt more firm, carries out fixed operation to the drill bit on the horizontal direction.

5. When two movable blocks do relative motion, the movable blocks can be close to the corresponding fixed frames, the sliding blocks above the movable blocks are in contact with the abutting blocks on the fixed frames, the sliding blocks move forwards continuously, the sliding blocks can slide downwards in the grooves under the cooperation of abutting surfaces and inclined planes, then the upper pressure plate is driven to move downwards through the connecting rods to abut against the upper surface of the drill bit, and the drill bit is effectively clamped and fixed in the vertical direction under the elastic supporting effect of the spring seats of the supporting plate.

Drawings

Fig. 1 is a longitudinal sectional view of the present invention;

fig. 2 is a longitudinal sectional view of the moving block and the fixing frame of the present invention;

fig. 3 is a schematic view of the right moving block of the present invention approaching the fixed frame;

fig. 4 is a schematic view of the right moving block of the present invention when the sliding block contacts with the abutting block.

Detailed Description

The principle and features of the present invention will be described with reference to the accompanying drawings, which are provided for illustration purposes only and are not intended to limit the scope of the present invention.

As shown in figures 1-4, the utility model provides a drill bit holder for open rig in colliery, including base 1, horizontal installation is equipped with screw rod 12 in the inside cavity of base 1, and screw rod 12 links to each other with the outside motor 11 power of base 1. The screw 12 both ends symmetry is equipped with positive and negative screw thread, and the threaded sleeve is equipped with corresponding movable block 2 respectively on the positive and negative screw thread, and movable block 2 upwards vertical activity runs through the movable mouthful 10 that the base 1 top surface was seted up and outwards stretches out. When the motor 11 drives the screw 12 to rotate, the two moving blocks 2 can approach or separate from each other, and then the side clamping plates 5 arranged on the opposite sides of the moving blocks 2 are driven to clamp the two sides of the drill bit 4. Wherein, the side splint 5 is installed on the moving block 2 through the elastic expansion link 51 that the level set up, and the elastic expansion link 51 can adopt the commonly used telescopic spring pole among the prior art. The side clamping plate 5 is more firmly abutted against the drill 4 by the elastic support of the elastic telescopic rod 51.

The base 1 between the two fixings is provided with a supporting plate 3, and the bottom of the supporting plate 3 is connected with the base 1 through a spring seat 31. And all seted up on side splint 5 and the layer board 3 with 4 matched with notches of drill bit, can play effectual joint limiting displacement to drill bit 4 with 4 centre grippings of drill bit in the notch, the centre gripping is fixed more firmly. In addition, the spring seat 31 supports the supporting plate 3, and can play an effective clamping and fixing role on the drill bit 4 placed on the supporting plate 3 by being matched with the clamping of the upper pressing plate 6.

Two door-shaped fixing frames 7 are vertically fixed on the base 1 between the two moving blocks 2, the side clamping plates 5 and the upper pressing plate 6 can penetrate through the middle part below the fixing frames 7, and the fixing frames 7 cannot influence the movement of the moving blocks 2. The moving blocks 2 are respectively arranged at the outer sides of the two fixing frames 7. The top surface of the moving block 2 is provided with a downward vertical groove 20, the groove 20 is internally provided with a sliding block 8 in a vertical sliding manner, the inner bottom of the groove 20 is vertically provided with a spring 81, the spring 81 is abutted against the bottom of the sliding block 8, the end part of the sliding block 8, extending out of the groove 20, above the sliding block 8 is provided with an inclined plane 80, the top of the fixed frame 7 is fixedly provided with an abutting block 71, and the bottom of the abutting block 71 is provided with an abutting surface 710 matched with the inclined plane 80 of the sliding block 8. The opposite side above the moving block 2 is provided with a movable groove 21 communicated with the groove 20 in an inward penetrating way, the connecting rod 61 which is horizontally and fixedly connected with the upper pressing plate 6 penetrates through the movable groove 21 and is fixedly connected on the side of the sliding block 8 in the groove 20, and the two upper pressing plates 6 are respectively pressed on two sides above the drill bit 4.

When the two moving blocks 2 move relatively, the two moving blocks are close to the corresponding fixed frame 7, so that the sliding blocks 8 above the moving blocks 2 are in contact with the abutting blocks 71 on the fixed frame 7, the sliding blocks 8 can slide downwards in the grooves 20 along with the continuous forward movement of the moving blocks 2 under the cooperation of the abutting surfaces 710 and the inclined surfaces 80, the upper pressure plate 6 is driven by the connecting rod 61 to move downwards to abut against the upper surface of the drill bit 4, and the drill bit 4 is effectively clamped and fixed in the vertical direction under the elastic supporting effect of the spring seat 31 of the supporting plate 3.

Use the utility model discloses in the time, place back on the layer board 3 of base 1 with drill bit 4, starter motor 11 drives screw rod 12 and rotates, makes two movable blocks 2 be close to each other, can at first contact with the left and right sides of drill bit 4 after two side splint 5 pass the mount 7 of door type, and the both sides of drill bit 4 can the butt in the arc notch of side splint 5. Along with the moving block 2 continues to move, the elastic expansion rod 51 of the side clamping plate 5 contracts, the sliding block 8 at the top of the moving block 2 can be in contact with the abutting block 71 on the fixing frame 7, under the cooperation of the abutting surface 710 and the inclined surface 80, the sliding block 8 drives the upper pressure plate 6 to move downwards through the connecting rod 61 to abut against the upper surface of the drill bit 4, under the elastic supporting effect of the spring seat 31 of the supporting plate 3, the drill bit 4 is clamped between the two upper pressure plates 6 and the supporting plate 3 in the vertical direction, and then the drill bit 4 is effectively clamped and fixed. The utility model discloses need not artifical manual regulation, only need through the drive of motor 11, can realize that the centre gripping of horizontal direction upside splint 5, vertical orientation upper pressure plate 6 and layer board 3's crimping are fixed, use convenience simple more, and drill bit 4 is fixed more stable firm.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications can be made to the embodiments described in the foregoing detailed description, or equivalents can be substituted for some of the features described therein. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims (7)

1. The utility model provides a colliery is drill bit holder for open rig, includes the base, its characterized in that: a screw driven by a motor is horizontally arranged in the base, and moving blocks are respectively sleeved on the positive and negative threads at the two ends of the screw in a threaded manner; the moving block is upwards movably penetrated through the moving opening of the base and extends outwards; two fixing frames are vertically fixed on the base; the moving blocks are arranged at the outer sides of the two fixed frames respectively, and a supporting plate is arranged on the base between the two fixed frames; the side surfaces of the two moving blocks which are opposite to each other are provided with side clamping plates; a groove is vertically formed in the top surface of the moving block downwards, a sliding block is vertically arranged in the groove in a sliding mode, and an inclined plane matched with the fixing frame is arranged at the top of the sliding block extending out of the groove; the opposite sides of the tops of the two moving blocks are provided with upper pressing plates, and the upper pressing plates penetrate through the moving grooves on the side surfaces of the moving blocks and are fixedly connected to the side surfaces of the sliding blocks.

2. The drill bit holder for coal mine open drill according to claim 1, wherein: the bottom in the recess is installed the spring, and the spring and slider bottom butt.

3. The drill bit holder for coal mine open drill according to claim 1, wherein: the fixed frame is a door-shaped frame.

4. The drill bit holder for a coal mine open drill according to claim 3, wherein: the top of the fixing frame is fixedly provided with a butt block, and the bottom of the butt block is provided with a butt surface matched with the inclined surface of the sliding block.

5. The drill bit holder for a coal mine open drill according to claim 1, wherein: the bottom of the supporting plate is connected with the base through a spring seat.

6. The drill bit holder for coal mine open drill according to claim 1, wherein: the side clamping plates are arranged on the moving block through elastic telescopic rods which are horizontally arranged.

7. The drill bit holder for a coal mine open drill according to claim 1, wherein: and notches matched with the drill bit are formed in the side clamping plates and the supporting plate.

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