CN216517772U

CN216517772U - Self-cooled rock drill

Info

Publication number: CN216517772U
Application number: CN202120502446.XU
Authority: CN
Inventors: 陈明乾; 何安文
Original assignee: Chongqing Yandu Machinery Equipment Co ltd
Current assignee: Chongqing Yandu Machinery Equipment Co ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2022-05-13
Anticipated expiration: 2031-03-09

Abstract

The utility model belongs to the technical field of rock drills and provides a self-cooling rock drill. The method comprises the following steps: a rock drill main body; the rock drill main body is provided with a main shaft and an impact shaft, and the main shaft is in transmission connection with the impact shaft; and a cooling section; the cooling part is installed in the rock drill main body; the cooling part comprises a liquid tank, a liquid pump and a water-cooling dripper; the liquid box is fixedly arranged on the rock drill main body, the liquid pump is arranged in the rock drill and is positioned on the main shaft, and the water-cooling water dropper is arranged on the impact shaft, is close to the end impact direction and is communicated with the liquid box. In summary, the self-cooling rock drill not only can reduce high-temperature abrasion caused by mechanical movement. Meanwhile, the device is compact in structure, reasonable in design, convenient to use, good in practical effect and suitable for industrial popularization.

Description

Self-cooled rock drill

Technical Field

The utility model relates to the technical field of rock drills, in particular to a self-cooling rock drill.

Background

The rock drill is widely applied to mining operation, the rock drill is provided with a hydraulic system and an air circuit system, and the working principle of the hydraulic rock drill is that high-pressure hydraulic oil is used as power, a percussion drilling tool drills a round blast hole on rock through reciprocating motion of a piston, and compressed air is used for blowing out dust and slag in the hole from the bottom of the hole. When the rock drill starts to work, the impact frequency of the rock drill is very high, the impact force is large, the joint of the drill shank and the drilling tool generates heat due to friction under the continuous impact action, the temperature is rapidly increased, the physical and chemical changes occur at the joint of the drill shank and the drilling tool, the abrasion of the drill shank and the drilling tool is seriously aggravated, the service lives of the drill shank and the drilling tool are reduced, and therefore serious economic loss is caused; therefore, a cooling device for the area is urgently needed to reduce high-temperature abrasion.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a self-cooling rock drill to reduce high-temperature abrasion.

The utility model provides a self-cooling rock drill, which comprises: a rock drill main body; the rock drill main body is provided with a main shaft and an impact shaft, and the main shaft is in transmission connection with the impact shaft; and a cooling section; the cooling part is installed in the rock drill main body; the cooling part comprises a liquid tank, a liquid pump and a water-cooling dripper; the liquid box is fixedly arranged on the rock drill main body, the liquid pump is arranged in the rock drill and is positioned on the main shaft, and the water-cooling water dropper is arranged on the impact shaft, is close to the end impact direction and is communicated with the liquid box.

Further, the liquid pump comprises a rotor and a stator, the stator is provided with a connecting port and a rotating cavity, the connecting port is provided with two positions and is respectively arranged on two sides of the rotating cavity, the rotor is fixedly arranged on the main shaft and is positioned in the rotating cavity, and the rotor is rotatably connected with the stator. In practical application, the liquid pump designed at the position is similar to the traditional oil pump; thus, the pressure change is realized by utilizing the rotation of the rotating cavity in the stator and the rotor, and the liquid transmission is realized.

Furthermore, the rotating cavity is provided with a plurality of concave cavities, and the cross-sectional areas of the concave cavities are increased clockwise. This design is at the in-service use in-process, through the clockwise increase in concave chamber for the pressure that this liquid pump produced constantly changes, makes things convenient for liquid to drip and reveals on the impact shaft after getting into, realizes the different regional cooling of impact shaft, makes the cooling effect better like this.

Furthermore, the water-cooling drippers are provided with more than one dripping hole and are uniformly distributed in the water-cooling drippers and lean against the surface of the impact shaft. In actual application, the dropping holes in the water-cooling water dropper facilitate more comprehensive and balanced cooling.

Further, the impact shaft is provided with more than one spiral liquid groove, and the spiral liquid groove is positioned on the surface of the impact shaft and is close to the shaft end direction of the impact shaft. In practical application, the spiral liquid groove can store a part of liquid and can also be spread to a working area in the movement of the impact shaft, so that the temperature of a rock drilling part is reduced, and the steel chisel is further protected.

According to the technical scheme, the self-cooling rock drill has the beneficial effects that: (1) in actual application, the rock drilling function is effectively realized through the rock drilling machine body;

(2) meanwhile, the adopted cooling part is arranged in the main body of the rock drill, and the working of the liquid pump is realized by utilizing the rotation of the main shaft, so that the driving force is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention, reference will now be made briefly to the embodiments or to the accompanying drawings that are needed in the description of the prior art. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the construction of the fluid pump shown in FIG. 1;

FIG. 3 is an enlarged view of a portion a shown in FIG. 1;

reference numerals: the rock drill comprises a rock drill body 1, a main shaft 11, an impact shaft 12, a spiral liquid groove 121, a cooling part 2, a liquid tank 21, a liquid pump 22, a rotor 221, a stator 222, a connecting port 2221, a rotating cavity 2222, a water-cooling dripper 23, a dripping hole 231 and a concave cavity 100.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

The embodiment is basically as shown in the attached figures 1 to 3:

as shown in fig. 1 to 3, the present embodiment provides a self-cooling rock drill, which can reduce high-temperature wear, and includes: a rock drill body 1 and a cooling section 2; the rock drill main body 1 is provided with a main shaft 11 and an impact shaft 12, and the main shaft 11 is in transmission connection with the impact shaft 12; the cooling part 2 is installed in the rock drill body 1; the cooling part 2 comprises a liquid tank 21, a liquid pump 22 and a water-cooling dripper 23; the liquid tank 21 is fixedly arranged on the main body 1 of the rock drill, the liquid pump 22 is arranged in the rock drill and is positioned on the main shaft 11, and the water-cooling water dropper 23 is arranged on the part close to the impact shaft 12, close to the end impact direction and is communicated with the liquid tank 21. In practical application, the rock drilling function is effectively realized through the rock drilling machine main body 1; at the same time, the cooling part 2 is used to realize the work of the liquid pump 22 by being arranged in the rock drill body 1 and utilizing the rotation of the main shaft 11, thus saving the driving force.

In this embodiment, the liquid pump 22 includes a rotor 221 and a stator 222, the stator 222 has a connection port 2221 and a rotation cavity 2222, wherein the connection port 2221 has two positions and is respectively disposed at two sides of the rotation cavity 2222, the rotor 221 is fixedly mounted on the main shaft 11 and is located in the rotation cavity 2222, and the rotor 221 and the stator 222 are rotatably connected. In practical application, the liquid pump 22 designed here is similar to a conventional oil pump; this achieves pressure variation and liquid transfer by rotation of the rotating cavity 2222 in the rotor 221 of the stator 222.

In this embodiment, the rotating cavity 2222 has a plurality of concave cavities 100, and the cross-sectional area of the concave cavities 100 increases clockwise. This design is at the in-service use in-process, through the clockwise increase of concave cavity 100 for the pressure that this liquid pump 22 produced constantly changes, makes things convenient for liquid after the entering, drips and reveals on impact shaft 12, realizes the cooling of impact shaft 12 different regions, makes the cooling effect better like this.

In this embodiment, the water-cooled drippers 23 have more than one drip hole 231, and are uniformly distributed in the water-cooled drippers 23 and close to the surface of the impact shaft 12. In actual application, the dripping holes 231 in the water cooling drippers 23 are convenient and more comprehensive and balanced in cooling.

In the present embodiment, impact shaft 12 has more than one spiral liquid groove 121, and spiral liquid groove 121 is located on the surface of impact shaft 12 and close to the axial end direction of impact shaft 12. In practical application, the spiral liquid groove 121 can store a part of liquid and can also be spread to a working area during the movement of the impact shaft 12, so that the temperature of a rock drilling position is reduced, and the drill steel is further protected.

In summary, the self-cooling rock drill not only can reduce high-temperature abrasion caused by mechanical movement. Meanwhile, the device is compact in structure, reasonable in design, convenient to use, good in practical effect and suitable for industrial popularization.

In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A self-cooling rock drill, comprising:

a rock drill main body; the rock drill main body is provided with a main shaft and an impact shaft, and the main shaft is in transmission connection with the impact shaft; and

a cooling section; the cooling part is installed in the rock drill main body; the cooling part comprises a liquid tank, a liquid pump and a water-cooling dripper; the liquid box is fixedly arranged on the rock drill main body, the liquid pump is arranged in the rock drill and is positioned on the main shaft, and the water-cooling water dropper is arranged on the impact shaft, is close to the end impact direction and is communicated with the liquid box.

2. A self-cooling rock drill according to claim 1, characterized in that the liquid pump includes a rotor and a stator, the stator has a connection port and a rotation cavity, wherein the connection port has two positions and is respectively disposed at two sides of the rotation cavity, the rotor is fixedly mounted on the main shaft and is located in the rotation cavity, and the rotor and the stator are rotatably connected.

3. A self-cooling rock drill according to claim 2, characterized in that said rotary cavity has a plurality of concave cavities with increasing cross-sectional areas clockwise.

4. A self-cooling rock drill according to claim 1, characterized in that the water-cooled dripper has more than one drip hole and is uniformly arranged in the water-cooled dripper, and is close to the surface of the impact shaft.

5. A self-cooling rock drill according to claim 4, characterized in that the impact shaft has more than one spiral fluid groove, the spiral fluid groove is located on the surface of the impact shaft and close to the axial end of the impact shaft.