CN217001787U - Drilling safety device for rock face drilling machine - Google Patents

Abstract

The utility model relates to a drilling opening safety device for a rock face drilling machine, and belongs to the technical field of geological engineering safety devices. The safety device comprises a safety device arranged around a drilling opening, wherein the safety device is divided into a left component and a right component which are symmetrical, and each component comprises a horizontally arranged protection plate and an arc-shaped protection wall arranged on the protection plate; the left protective wall and the right protective wall which are symmetrical form a cylindrical structure with a wide upper part and a narrow lower part, a pipeline for cleaning slurry is vertically arranged along the side wall of the protective wall, a plurality of spray heads are vertically arranged along the inner side of the protective wall of the pipeline, and the spray heads are inclined downwards and spray water flow towards the drill bit; the ducts extend from the guard wall to the guard plate and connect with the connectors at the edge of the guard plate. The utility model further improves the safety performance by utilizing the protective wall extending out of the protective plate, and simultaneously, the spray head is additionally arranged on the protective plate, so that the slurry on the drill bit can be efficiently cleaned. The utility model can be widely applied to the occasions of geological engineering safety devices.

Description

Drilling safety device for rock face drilling machine

Technical Field

The utility model relates to a drilling opening safety device for a rock face drilling machine, and belongs to the technical field of geological engineering safety devices.

Background

The existing rock surface drilling machine is one of core drilling equipment, is mainly used for general investigation and exploration of metal and nonmetal solid minerals, and can also be used for engineering geological investigation, hydrogeological investigation, general investigation and exploration of oil and gas fields, well drilling and the like. A safety protection device, i.e. a protection plate with a round hole, is usually arranged at the drill hole to prevent the drill bit rotating up and down at a high speed from hurting people. On the same day, a large amount of slurry is attached to the drill bit in the lifting process, and certain safety problems can be caused in the centrifugal throwing-out process. Therefore, a certain safety device is specially arranged at the wellhead.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides the drilling opening safety device for the rock face drilling machine, which improves the shape of the protective wall on the protective plate, improves the protection, and has better effect of removing the drill bit mud.

The utility model relates to a drilling safety device for a rock face drilling machine, which comprises a safety device arranged around a drilling opening, wherein the safety device is divided into a left component and a right component which are symmetrical, and each component comprises a horizontally arranged protection plate and an arc-shaped protection wall arranged on the protection plate; the left protective wall and the right protective wall are symmetrical to form a cylindrical structure with a wide upper part and a narrow lower part, pipelines for cleaning slurry are vertically arranged along the side wall of the protective wall, a plurality of spray heads are vertically arranged along the inner side of the protective wall of the pipeline, and the spray heads are inclined downwards to spray water flow towards the drill bit; the ducts extend from the guard wall to the guard plate and connect with the connectors at the edge of the guard plate.

The core point of the utility model is the protective wall. The protection plate is arranged at the position of the drill bit by a conventional means, but the protection plate only prevents mud and broken stones below the drill bit from splashing, the part of the drill bit above the ground cannot be protected, and certain potential safety hazards can be caused particularly when the drill bit with the mud is not cleaned in time. Therefore, the utility model provides the design of the protective wall, and the protective wall with the spray head can carry out high-speed water flow impact around the drill bit for one circle, so that the mud can be reduced rapidly, and the safety coefficient is improved.

Preferably, the pipeline is embedded on the protective wall along a certain angle with the vertical direction in an inclined mode.

Since the number of nozzles is limited by the height of the protective wall, the pipes are designed in a tilted shape in order to increase the number of nozzles as much as possible and thus to improve the efficiency of cleaning the slurry as much as possible within the range of the protective wall of limited height. Utilize the slope to put the pipeline, on the one hand the quantity that has improved the shower nozzle with changing the looks, the decurrent rivers of the high-speed slope of on the other hand combine the pipeline that originally inclines to set up again, form the rivers that are similar to the centrifugal force effect, and the cleaning performance is more outstanding.

Preferably, the joint of the protection wall and the protection plate is an arc section, and the arc section is a groove formed by inwards sinking the edge of the protection plate; the drill bit of the rock face drilling machine moves up and down in a gap formed by splicing the left groove and the right groove.

The protective wall forms a protective channel by surrounding the drill bit, so that the damage of slurry splashed by the high-speed drill bit and broken stone to geological engineering exploration personnel is avoided. And before the drill bit is pulled upwards after drilling, the protection of each angle on the ground and the ground is formed by butt-jointing the two protection plates at the left and the right. The groove reserved in the center of the protection plate is just a channel for the drill to move up and down.

The protective wall is designed to be wide at the top and narrow at the bottom, so that slurry brought out from the top can be received by the upper port with a wider diameter range and can slide down to the drilling opening along the inner edge of the protective wall to form a funnel-shaped structure. And a closed protective structure is formed between the two funnel-shaped protective walls through butt joint and is used for safety protection at the ground.

Preferably, the joint is connected with a water pipe, and water flows into the pipeline from the joint and rises to a spray head at the protective wall to be sprayed towards the drill bit with the mud.

The perpendicular injection towards the drill bit inherently enables mud cleaning, but it has been found experimentally that the mud cleaning effect achieved by tangential high velocity injection is better. And the tangential direction of the spray head is opposite to the rotating direction of the drill bit, so that the resistance on the mud is higher according to the hedging principle, and the possibility of being washed away is higher.

Preferably, the protection plate is a metal plate, and a complete safety device is formed after left and right butt joint.

The protective plate covers a drilling hole with a larger caliber on the ground, only the calibers of the two grooves allowing the drilling bit to enter and exit are reserved, and the risk of dropping articles caused by negligence of personnel is reduced; on the other hand, the device is used for bearing the protective wall and the pipeline, providing safe and reliable ground support for the protective wall and providing connecting support for laying the pipeline.

Preferably, the protective wall is also provided with a drain outlet for avoiding blockage.

Because two protective wall forms and leaks hopper-shaped, if not being washed the mud that finishes by the clearance and piling up in the bottom of protective wall easily in the brill mouth, consequently seted up the drain in the bottom of protective wall, slowly discharged the mud that can't in time clear up through the drain.

The utility model has the beneficial effects that: the drilling safety device for the rock face drilling machine further improves the safety performance by utilizing the protective wall extending out of the protective plate, and meanwhile, the spray head is additionally arranged on the protective plate, so that slurry on a drill bit is efficiently cleaned.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure: 1. a protection plate; 2. a joint; 3. a pipeline; 4. a protective wall; 5. and (4) a spray head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

as shown in fig. 1, the drilling safety device for a rock face drilling machine according to the present invention is composed of two symmetrical components.

The mounting device for splicing the left side assembly and the right side assembly is a novel device which is actually designed to be unfolded around a drilling hole, and a protection plate 1 positioned at the drilling hole on the ground plays a role in first-step protection; while the protective wall 4 located above the ground performs a second step of protection.

The protective wall 4 is the important point of protection of the utility model. The centrifugal slurry spraying device is special in shape, forms a funnel shape and is used for receiving more slurry thrown out by centrifugal force, and meanwhile, more spray heads 5 can be arranged by combining the pipeline 3 positioned on the centrifugal slurry spraying device.

In addition, the design of the pipe 3 also covers many new perspectives. For example, the pipe 3 is designed to be inclined along the protective wall 4 in a direction opposite to the direction of lifting on the drill bit, and can give rise to a high resistance impact against the mud.

The protection plate 1 is arranged at the position of a drill bit by a conventional means, but the problem that mud and broken stones below the drill bit are splashed is only solved, the part of the drill bit above the ground cannot be protected, and certain potential safety hazards can be caused especially when the drill bit with the mud is not cleaned in time. Therefore, the utility model provides the design of the protective wall 4, and the protective wall 4 with the spray heads 5 can perform high-speed water flow impact around the drill bit in a circle, so that the mud is reduced rapidly, and the safety factor is improved.

Preferably, the pipe 3 is embedded in the protective wall 4 at an angle to the vertical.

Since the number of spray heads 5 is limited by the height of the protective wall 4, the pipe 3 is designed in particular in an inclined manner in order to increase the number of spray heads 5 as much as possible and thus to increase the efficiency of the sludge cleaning as much as possible within the limited height of the protective wall 4. Utilize the pipeline 3 that the slope was put, on the one hand the quantity that has improved shower nozzle 5 with changing the looks, the decurrent rivers of the high-speed slope of on the other hand, the pipeline 3 that combines originally the slope to set up again forms the rivers that are similar to the centrifugal force effect, and the cleaning performance is more outstanding.

Preferably, the joint of the protection wall 4 and the protection plate 1 is an arc section, and the arc section is a groove formed by inwards sinking the edge of the protection plate 1; a drill bit of the rock surface drilling machine moves up and down in a gap formed by splicing the left groove and the right groove.

The protective wall 4 forms a protective channel by surrounding the drill bit, so that the damage of slurry and gravel splashed by the high-speed drill bit to geological engineering exploration personnel is avoided. And before the drill bit is pulled upwards after drilling, the protection of each angle on the ground and the ground is formed by butt-jointing the two protection plates 1 from left to right. The groove reserved in the center of the protection plate 1 is just a passage for the drill to move up and down.

The protective wall 4 is designed to be wide at the top and narrow at the bottom, so that slurry brought from the top can be received by the upper opening with a wider diameter range and can slide down to the drilling opening along the inner edge of the protective wall 4 to form a funnel-shaped structure. Two protection walls 4 in the shape of a funnel form a closed protection structure through butt joint, and the closed protection structure is used for safety protection at the ground.

Preferably, the connector 2 is connected to a water pipe, and water flows from the connector 2 into the pipeline 3 and rises to the spray head 5 at the protective wall 4 to be sprayed towards the drill bit with mud.

The perpendicular injection towards the drill bit inherently enables mud cleaning, but it has been found experimentally that the mud cleaning effect achieved by tangential high velocity injection is better. And the tangential direction of the spray head 5 is opposite to the rotating direction of the drill bit, so that the mud is more resistant according to the opposite flushing principle, and the mud is more likely to be flushed away.

Preferably, the protection plate 1 is a metal plate, and a complete safety device is formed after left and right butt joint.

The protection plate 1 covers a drilling hole with a larger caliber on the ground, only the calibers of the two grooves allowing the drilling bit to enter and exit are reserved, and the risk of dropping articles caused by negligence of personnel is reduced; on the other hand, the protective wall 4 and the pipeline 3 are connected, safe and reliable ground support is provided for the protective wall 4, and connection support is provided for laying of the pipeline 3.

Example 2:

and a sewage draining outlet for avoiding blockage is also arranged on the protective wall 4.

Because two protecting walls 4 form and leak hopper-shaped, if not being washed the mud that finishes by the clearance and piling up in the bottom of protecting wall 4 easily in the drill way, consequently seted up the drain in the bottom of protecting wall 4, slowly discharged the mud that can't in time clear up through the drain.

The utility model has the beneficial effects that: according to the drilling safety device for the rock face drilling machine, the safety performance is further improved by utilizing the protective wall 4 extending out of the protective plate 1, and meanwhile, the spray head 5 is additionally arranged on the protective plate 1, so that slurry on a drill bit can be efficiently cleaned.

The utility model can be widely applied to the occasions of geological engineering safety devices.

The above-mentioned matters which are not mentioned are common technical means in the art, most typically, the "single chip microcomputer principle and its application" in the textbook published by the university press of Qinghua, 2012, and therefore the above description and the drawings sufficiently show the embodiments of the present invention to enable those skilled in the art to practice them.

Claims (6)

1. A drilling safety device for a rock face drilling machine comprises a safety device arranged around a drilling opening, and is characterized in that the safety device is divided into a left component and a right component which are symmetrical, each component comprises a horizontally arranged protection plate (1) and an arc-shaped protection wall (4) arranged on the protection plate (1); the left protective wall and the right protective wall (4) which are symmetrical form a cylindrical structure with a wide upper part and a narrow lower part, a pipeline (3) for cleaning slurry is vertically arranged along the side wall of the protective wall (4), a plurality of spray heads (5) are vertically arranged on the pipeline (3) along the inner side of the protective wall (4), and the spray heads (5) are inclined downwards to spray water flow towards a drill bit; the pipeline (3) extends from the protective wall (4) to the protective plate (1) and is connected with the joint (2) at the edge of the protective plate (1).

2. A drill safety device for a rock face drilling machine according to claim 1, characterized in that the pipe (3) is embedded in the protective wall (4) at an angle to the vertical.

3. The safety device for the drill hole of the rock face drilling machine as claimed in claim 2, characterized in that the joint of the protective wall (4) and the protective plate (1) is a circular arc section, which is a groove formed by inward sinking of the edge of the protective plate (1); the drill bit of the rock face drilling machine moves up and down in a gap formed by splicing the left groove and the right groove.

4. A safety device for a drill opening of a rock face drilling machine according to claim 1, characterized in that the joint (2) is connected to a water pipe, and that the water flow from the joint (2) enters the pipe (3) and rises to the spray head (5) at the protecting wall (4) to be sprayed towards the drill bit with the mud.

5. The drilling safety device for a rock face drilling machine according to claim 1 or 3, characterized in that the protection plate (1) is a metal plate, and the complete safety device is formed after left-right butt joint.

6. A drill opening safety device for a rock face drilling machine according to claim 1 or 3, characterized in that the protective wall (4) is also provided with a drain opening to avoid clogging.

Images