CN210714452U - Drill carriage - Google Patents

Drill carriage Download PDF

Info

Publication number
CN210714452U
CN210714452U CN201920704855.0U CN201920704855U CN210714452U CN 210714452 U CN210714452 U CN 210714452U CN 201920704855 U CN201920704855 U CN 201920704855U CN 210714452 U CN210714452 U CN 210714452U
Authority
CN
China
Prior art keywords
frame
lifting platform
turning plate
oil cylinder
drill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920704855.0U
Other languages
Chinese (zh)
Inventor
杨俊哲
许联航
郭爱军
刘建良
刘芳
贺安民
武利民
姚会军
兰天安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Jinglong Intelligent Equipment Co ltd
China Shenhua Energy Co Ltd
Shenhua Shendong Coal Group Co Ltd
Original Assignee
Langfang Jinglong Heavy Machinery Co ltd
China Shenhua Energy Co Ltd
Shenhua Shendong Coal Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Langfang Jinglong Heavy Machinery Co ltd, China Shenhua Energy Co Ltd, Shenhua Shendong Coal Group Co Ltd filed Critical Langfang Jinglong Heavy Machinery Co ltd
Priority to CN201920704855.0U priority Critical patent/CN210714452U/en
Application granted granted Critical
Publication of CN210714452U publication Critical patent/CN210714452U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Earth Drilling (AREA)

Abstract

The utility model discloses a drill carriage, which comprises a carriage body, a walking mechanism, a lifting platform, a drilling mechanism and a supporting mechanism; the travelling mechanism is arranged below the machine body; the lifting platform is arranged above the machine body, and a lifting driving oil cylinder is arranged between the lifting platform and the machine body; two sides of the lifting platform are oppositely provided with a plate turnover mechanism; the plate turnover mechanism comprises a telescopic turnover plate and a turnover oil cylinder; the telescopic turning plate comprises a first turning plate and a second turning plate, and a linear driving oil cylinder is arranged between the first turning plate and the second turning plate; the first turning plate is hinged to the side edge of the lifting platform, the cylinder body of the turning oil cylinder is fixedly mounted on the lifting platform, and the output shaft of the turning oil cylinder is connected with the first turning plate. The utility model discloses a drill carriage turns over the board through setting up the telescopic, can increase operation platform's area, does benefit to quick safe operation, has still improved the trafficability characteristic in the tunnel.

Description

Drill carriage
The technical field of,
The utility model relates to a colliery is drill carriage field in the pit, especially relates to a drill carriage.
Background
The Chinese energy resources belong to 'lack of oil, less gas and rich coal', so the coal occupies more than 70% of the Chinese primary energy consumption for a long time. With the high-speed growth of Chinese economy, the coal consumption is continuously increased, the coal yield reaches 38.7 hundred million tons in 2014, and the coal consumption acceleration is expected to be kept about 3% in the future. By 2020, the total amount of coal required nationwide will be around 48 hundred million tons. At that time, the proportion of coal in the disposable energy consumption structure of China still can account for about 60%. By 2020, coal in China can utilize 40 hundred million tons of capacity, and the capacity gap is about 8 hundred million tons.
With the development of the science and technology of the coal industry and the requirements of industrial policies in China, the advanced anchor rod and anchor cable supporting technology is widely applied to the coal mine roadway excavation in China from the eighties of the last century. At present, most of the large and medium-sized coal mine anchor rod and anchor cable support operation modes in China depend on manual use of a handheld single anchor rod machine and a coal electric drill, and the problems of low safety coefficient, high labor intensity, severe operation environment, low production efficiency and the like exist in the process of supporting under a hollow top.
The anchor rod drill carriage continuously operates in the underground, the trafficability characteristic of the drill carriage and the working environment of workers greatly influence the working efficiency, the trafficability characteristic of the conventional multi-drill boom anchor rod drill carriage is poor, and the working efficiency is influenced and the manpower and time are wasted due to the fact that the whole size is small and the range of an operating platform is small.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can increase operation panel area, improve work efficiency's drill carriage.
The technical scheme of the utility model provides a drill carriage, which comprises a carriage body, a walking mechanism, a lifting platform, a drilling mechanism and a supporting mechanism;
the travelling mechanism is arranged below the machine body;
the lifting platform is arranged above the machine body, and a lifting driving oil cylinder for driving the lifting platform to lift is arranged between the lifting platform and the machine body;
the drilling mechanism is hinged to the front end of the lifting platform, and the supporting mechanism is hinged to the rear end of the lifting platform;
two sides of the lifting platform are oppositely provided with a plate turnover mechanism;
the turning plate mechanism comprises a telescopic turning plate and a turning oil cylinder for driving the telescopic turning plate to rotate;
the telescopic turning plate comprises a first turning plate and a second turning plate which is in sliding connection with the first turning plate, and a linear driving oil cylinder for driving the second turning plate to move linearly is arranged between the first turning plate and the second turning plate;
the first turning plate is hinged to the side edge of the lifting platform, the cylinder body of the turning oil cylinder is fixedly mounted on the lifting platform, and the output shaft of the turning oil cylinder is connected with the first turning plate.
Furthermore, sliding chutes are respectively arranged on two sides below the first turning plate;
two sides of the second turning plate are respectively arranged in the sliding groove in a sliding manner;
the cylinder body of the linear driving oil cylinder is arranged below the first turning plate, and the output shaft of the linear driving oil cylinder is connected with the second turning plate.
Furthermore, a lifting frame is arranged between the machine body and the lifting platform;
the bottom of the lifting frame is fixedly arranged on the machine body, and the top of the lifting frame is hinged to the lifting platform.
Further, the drilling mechanism comprises a drill gun and a drill gun frame, one end of the drill gun frame is hinged to the lifting platform, and the other end of the drill gun frame is hinged to the drill gun;
and a first driving oil cylinder for driving the drill gun frame to swing is connected between the lifting platform and the drill gun frame.
Furthermore, a connecting bracket is arranged between the drill gun and the drill gun frame;
the connecting support comprises a connecting frame, a mounting frame and a sliding frame;
the connecting frame is hinged to the drill gun frame, a rotary oil cylinder is arranged on the connecting frame, and a rotary oil cylinder output shaft of the rotary oil cylinder extends upwards;
the mounting frame is connected to the output shaft of the rotary oil cylinder;
a mounting rack sliding groove is formed in the mounting rack, the sliding frame is mounted in the mounting rack sliding groove, and the drilling gun is mounted on the sliding frame;
and a sliding frame driving oil cylinder used for pushing the sliding frame to move linearly is also connected between the mounting frame and the sliding frame.
Furthermore, a second driving oil cylinder for driving the connecting frame to rotate is connected between the drill gun frame and the connecting frame.
Further, a laser sight is arranged above the sliding frame.
Furthermore, the supporting mechanism comprises a supporting frame and a supporting and protecting plate arranged on the top end of the supporting frame, and the lower end of the supporting frame is hinged to the lifting platform;
and a third driving oil cylinder for driving the support frame to swing is connected between the lifting platform and the support frame.
Further, the travelling mechanism is a travelling crawler.
By adopting the technical scheme, the method has the following beneficial effects:
the utility model provides a drill carriage turns over the board through setting up the telescopic, can increase operation platform's area, does benefit to quick safe operation, has still improved the trafficability characteristic in the tunnel.
Drawings
Fig. 1 is a schematic structural diagram of a drill carriage according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the plate turnover mechanism;
FIG. 3 is a cross-sectional view of a telescoping flap;
fig. 4 is a schematic view of a chute arranged on the first turning plate;
FIG. 5 is a schematic view of the second flap extending from the first flap;
FIG. 6 is a schematic view of the drilling mechanism mounted on the lift platform;
FIG. 7 is a schematic view of the drill gun mounted to the drill gun stand by the attachment bracket;
FIG. 8 is a schematic view of the drill gun mounted on the attachment bracket;
fig. 9 is a schematic view of a mounting bracket runner provided on the mounting bracket.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1-6, a drill carriage according to an embodiment of the present invention includes a body 1, a traveling mechanism 3, a lifting platform 2, a drilling mechanism 4, and a supporting mechanism 5.
The traveling mechanism 3 is installed below the body 1. The lifting platform 2 is arranged above the machine body 1, and a lifting driving oil cylinder 8 for driving the lifting platform 2 to lift is arranged between the lifting platform 2 and the machine body 1. The drilling mechanism 4 is hinged at the front end of the lifting platform 2, and the supporting mechanism 5 is hinged at the rear end of the lifting platform 2.
The two sides of the lifting platform 2 are oppositely provided with the plate turnover mechanisms 6.
The flap mechanism 6 comprises a telescopic flap 61 and a flap cylinder 62 for driving the telescopic flap 61 to rotate.
The telescopic turning plate 61 comprises a first turning plate 611 and a second turning plate 612 connected with the first turning plate 611 in a sliding manner, and a linear driving oil cylinder 613 for driving the second turning plate 612 to move linearly is arranged between the first turning plate 611 and the second turning plate 612.
First turning plate 611 articulates on lift platform 2's side, and the cylinder body fixed mounting of upset hydro-cylinder 62 is on lift platform 2, and the output shaft of upset hydro-cylinder 62 is connected with first turning plate 611.
The utility model provides a drill carriage is stock anchor rope drill carriage, and running gear 3 installs in the below of fuselage 1 for drive the drill carriage walking.
The cylinder body of the lifting driving oil cylinder 8 is fixedly arranged on the machine body 1, the output end of the lifting driving oil cylinder is connected with the lifting platform 2, and the lifting driving oil cylinder 8 is used for driving the lifting platform 2 to lift so as to drive the drilling mechanism 4 and the supporting mechanism 5 which are arranged on the lifting platform 2 to lift.
The drilling mechanism 4 is used to drill a hole to drive a bolt or cable into the hole. The supporting mechanism 5 is used for supporting the roadway top plate and providing a supporting function.
In order to enlarge the area of the operation platform, two sides of the lifting platform 2 are respectively provided with a plate turnover mechanism 6. The plate turnover mechanism 6 is positioned between the drilling mechanism 4 and the supporting mechanism 5. Two flap mechanisms 6 are arranged oppositely on both sides of the lifting platform 2.
The flap mechanism 6 mainly comprises a telescopic flap 61 and a turnover cylinder 62. The telescopic flap 61 comprises a first flap 611, a second flap 612 and a linear drive cylinder 613.
The second turning plate 612 is slidably connected to the first turning plate 611, the linear driving cylinder 613 is installed on the first turning plate 611, and an output end of the linear driving cylinder is connected to the second turning plate 612, so as to drive the second turning plate 612 to slidably extend and retract on the first turning plate 611.
The first turning plate 611 is hinged on the lifting platform 2, the turning oil cylinder 62 is installed on the lifting platform 2, and the output rotating shaft of the turning oil cylinder is connected with the first turning plate 611, so that the first turning plate 611 can be driven to rotate on the lifting platform 2, and the rotating range of the turning plate is up and down 90 degrees or 180 degrees.
When the area of the operating platform needs to be enlarged, the first turning plate 611 and the second turning plate 612 are driven to swing by 90 degrees through the turning oil cylinder 62 and are in a horizontal position. When the platform area needs to be expanded continuously, the second turning plate 612 is driven to extend out of the first turning plate 611 by the linear driving oil cylinder 613. In the initial state, the second flap 612 is received under the first flap 611.
In the initial state, the first flap 611 faces downward of the vehicle body 1. When the vehicle needs to meet in a narrow lane, the first turning plate 611 is driven to turn over for 180 degrees by the turning oil cylinder 62, so that the first turning plate 611 faces the upper part of the vehicle body 1, the width of the vehicle body can be reduced, and the vehicle meeting is facilitated.
Preferably, as shown in fig. 3 to 5, sliding grooves 6111 are respectively disposed at two sides below the first turning plate 611. Two sides of the second flap 612 are slidably disposed in the sliding groove 611. The cylinder body 6131 of the linear driving cylinder 613 is installed below the first turning plate 611, and the output shaft 6132 of the linear driving cylinder 613 is connected with the second turning plate 612.
By slidably disposing both sides of the second flap 612 in the sliding groove 611, on one hand, the second flap 612 can slide on the first flap 611, and the connection stability of the second flap 612 on the first flap 611 can be improved, so as to prevent the second flap 612 from falling off the first flap 611.
The cylinder body 6131 of the linear driving cylinder 613 is installed on the first turning plate 611, and the output shaft 6132 of the linear driving cylinder is connected with the second turning plate 612, so that the second turning plate 612 can be pushed to slide and stretch.
Preferably, as shown in fig. 1, a crane 7 is provided between the body 1 and the lifting platform 2. The bottom of the lifting frame 7 is fixedly arranged on the machine body 1, and the top of the lifting frame 7 is hinged on the lifting platform 2. When the lifting driving oil cylinder 8 drives the lifting platform 2 to lift, the lifting frame 7 is supported between the machine body 1 and the lifting platform 2 along with the lifting so as to provide auxiliary support, and the pressure of the lifting driving oil cylinder 8 can be reduced.
The lifting frame 7 is formed by hinging a plurality of connecting rods, and when the lifting driving oil cylinder 8 drives the lifting platform 2 to descend, the lifting frame 7 is compressed and reset.
Preferably, as shown in fig. 1 and 6, the drilling mechanism 4 includes a drill gun 42 and a drill gun holder 41. One end of the drill gun frame 41 is hinged on the lifting platform 2, and the other end thereof is hinged with the drill gun 42. A first driving cylinder 44 for driving the drill gun rack 41 to swing is connected between the lifting platform 2 and the drill gun rack 41.
The cylinder body of the first driving oil cylinder 44 is installed on the lifting platform 2, and the output shaft thereof is hinged with the drill gun frame 41, so that the drill gun frame 41 can be driven to swing on the lifting platform 2, and the angle of the drill gun 42 can be adjusted.
Preferably, as shown in fig. 1 and 6-9, a connecting bracket 43 is provided between the drill gun 42 and the drill gun holder 41.
The connecting bracket 43 includes a connecting bracket 431, a mounting bracket 432, and a sliding bracket 433. The connecting frame 431 is hinged on the drill gun frame 41, a rotary oil cylinder 434 is arranged on the connecting frame 431, and a rotary oil cylinder output shaft 4341 of the rotary oil cylinder 434 extends upwards. The mounting bracket 432 is connected to the rotary cylinder output shaft 4341.
A mounting frame sliding groove 4321 is formed in the mounting frame 432, the sliding frame 433 is installed in the mounting frame sliding groove 4321, and the drilling gun 42 is installed on the sliding frame 433.
A carriage driving cylinder 435 for pushing the carriage 433 to move linearly is further connected between the mounting frame 432 and the carriage 433.
The rotary cylinder 434 can drive the mounting rack 432, the sliding rack 433 and the drill gun 42 to rotate in a plane perpendicular to the rotary cylinder output shaft 4341, so as to adjust the angle of the drill gun 42.
The sliding frame driving oil cylinder 435 is used for driving the sliding frame 433 and the drilling gun 42 to slide and stretch on the mounting frame 432, and the distance between the drilling gun 42 and a drilled hole is adjusted.
So set up, conveniently adjust the position and the turned angle of brill rifle 42, do benefit to quick punching.
Preferably, as shown in fig. 7, a second driving cylinder 47 for driving the connecting frame 431 to rotate is further connected between the drill gun frame 41 and the connecting frame 431. The second driving oil cylinder 47 can drive the connecting frame 431 to rotate or swing up and down, so as to drive the mounting frame 432, the sliding frame 433 and the drilling gun 42 to swing up and down, and the pitching angle of the drilling gun 42 is adjusted, so that drilling is facilitated.
Preferably, as shown in fig. 6-8, a laser sight 436 is provided above the carriage 433 to facilitate aiming of the drill gun 42 at the drilled hole for rapid construction.
Preferably, as shown in fig. 5, the supporting mechanism 5 includes a supporting frame 51 and a supporting plate 52 disposed on the top end of the supporting frame 51, and the lower end of the supporting frame 51 is hinged to the lifting platform 2. A third driving oil cylinder 53 for driving the supporting frame 51 to swing is connected between the lifting platform 2 and the supporting frame 51. The third driving oil cylinder 53 drives the support frame 51 to swing on the lifting platform 2, so that the position of the supporting plate 52 is adjusted, and the roadway roof is supported.
Preferably, as shown in fig. 1, the traveling mechanism 3 is a traveling crawler, which is beneficial to traveling in a roadway.
According to the needs, the above technical schemes can be combined to achieve the best technical effect.
What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.

Claims (9)

1. A drill carriage is characterized by comprising a machine body, a walking mechanism, a lifting platform, a drilling mechanism and a supporting mechanism;
the travelling mechanism is arranged below the machine body and is used for driving the vehicle body to travel;
the lifting platform is arranged above the machine body, and a lifting driving oil cylinder for driving the lifting platform to lift is arranged between the lifting platform and the machine body;
the drilling mechanism is hinged to the front end of the lifting platform, and the supporting mechanism is hinged to the rear end of the lifting platform;
the drilling mechanism comprises a drill gun and a drill gun frame, one end of the drill gun frame is hinged on the lifting platform, and the other end of the drill gun frame is hinged with the drill gun;
the supporting mechanism comprises a supporting frame and a supporting and protecting plate arranged on the top end of the supporting frame, and the lower end of the supporting frame is hinged to the lifting platform;
two sides of the lifting platform are oppositely provided with a plate turnover mechanism;
the turning plate mechanism comprises a telescopic turning plate and a turning oil cylinder for driving the telescopic turning plate to rotate;
the telescopic turning plate comprises a first turning plate and a second turning plate which is in sliding connection with the first turning plate, and a linear driving oil cylinder for driving the second turning plate to move linearly is arranged between the first turning plate and the second turning plate;
the first turning plate is hinged to the side edge of the lifting platform, the cylinder body of the turning oil cylinder is fixedly mounted on the lifting platform, and the output shaft of the turning oil cylinder is connected with the first turning plate.
2. The drill carriage as claimed in claim 1, wherein sliding grooves are respectively arranged on two sides below the first turning plate;
two sides of the second turning plate are respectively arranged in the sliding groove in a sliding manner;
the cylinder body of the linear driving oil cylinder is arranged below the first turning plate, and the output shaft of the linear driving oil cylinder is connected with the second turning plate.
3. The drill carriage of claim 1, wherein a crane is provided between the body and the lifting platform;
the bottom of the lifting frame is fixedly arranged on the machine body, and the top of the lifting frame is hinged to the lifting platform.
4. The drill carriage as claimed in claim 1, characterized in that a first drive cylinder for driving the drill gun carrier to swing is connected between the lifting platform and the drill gun carrier.
5. The drill carriage as claimed in claim 4, characterized in that a connecting bracket is arranged between the drill gun and the drill gun rack;
the connecting support comprises a connecting frame, a mounting frame and a sliding frame;
the connecting frame is hinged to the drill gun frame, a rotary oil cylinder is arranged on the connecting frame, and a rotary oil cylinder output shaft of the rotary oil cylinder extends upwards;
the mounting frame is connected to the output shaft of the rotary oil cylinder;
a mounting rack sliding groove is formed in the mounting rack, the sliding frame is mounted in the mounting rack sliding groove, and the drilling gun is mounted on the sliding frame;
and a sliding frame driving oil cylinder used for pushing the sliding frame to move linearly is also connected between the mounting frame and the sliding frame.
6. The drill carriage as claimed in claim 5, wherein a second driving cylinder for driving the connecting frame to rotate is further connected between the drill gun frame and the connecting frame.
7. The drill carriage of claim 5, wherein a laser sight is provided above the carriage.
8. The drill carriage of claim 1, wherein a third drive cylinder is connected between the lifting platform and the support frame for driving the support frame to swing.
9. The drill carriage of claim 1, wherein the travel mechanism is a travel track.
CN201920704855.0U 2019-05-16 2019-05-16 Drill carriage Active CN210714452U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920704855.0U CN210714452U (en) 2019-05-16 2019-05-16 Drill carriage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920704855.0U CN210714452U (en) 2019-05-16 2019-05-16 Drill carriage

Publications (1)

Publication Number Publication Date
CN210714452U true CN210714452U (en) 2020-06-09

Family

ID=70925083

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920704855.0U Active CN210714452U (en) 2019-05-16 2019-05-16 Drill carriage

Country Status (1)

Country Link
CN (1) CN210714452U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118049135A (en) * 2024-04-16 2024-05-17 河北景隆智能装备股份有限公司 Six-arm anchor rod and anchor cable drill carriage for low roadway of thin coal seam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118049135A (en) * 2024-04-16 2024-05-17 河北景隆智能装备股份有限公司 Six-arm anchor rod and anchor cable drill carriage for low roadway of thin coal seam

Similar Documents

Publication Publication Date Title
CN106677699A (en) Automatic hydraulic drilling machine for coal mine
CN202325233U (en) Crawler-type hydraulic anchor rod drill carriage
CN106837185A (en) Machine jumbolter independent rack
CN101832102A (en) Movable two-platform partitioned four-arm hanging wall anchor rod and anchor cable construction drill carriage
CN201614887U (en) Crawler-type jumbolter
CN105840100A (en) Self-moving type water jet drilling machine
CN102278110A (en) Movable two-arm of lifting platform hanging wall anchor rod and anchor cable construction drill carriage
CN101936164A (en) Very soft thick coal seam forepoling hold top coal caving mining method and hydraulic support structure
CN210714452U (en) Drill carriage
CN202055821U (en) Two-arm top slope anchor rod and anchor rope construction drill wagon with movable lifting platform
CN205654299U (en) Multi -functional tunnelling drill carriage
CN206158574U (en) A portable drilling equipment for combining adopt working face and cross fault
CN204140065U (en) Heavy grade rock drilling development machine
CN207144820U (en) A kind of colliery airborne hydraulic rig
CN106869956A (en) A kind of high inclination-angle development machine with auxiliary climbing apparatus
CN101818649B (en) Hydraulic supporting device for fully-mechanized coal driving workface
CN104018868A (en) Integrated gate type fore support
CN204609879U (en) A kind of pick anchor all-in-one
CN206801476U (en) Machine jumbolter independent rack
CN110630175A (en) Foldable omnibearing drilling mechanism
CN206091985U (en) Small -size many drilling rods crawler -type coal mining machine
CN206111178U (en) Equipment is reprinted in pit in colliery with fluting function
CN214091699U (en) Five-arm anchor rod drill carriage for coal mine
CN205503009U (en) Short fuselage stock anchor rope drill carriage
CN203808829U (en) Suspension type omnibearing anchor rod drilling carriage

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing

Patentee after: China Shenhua Energy Co.,Ltd.

Country or region after: China

Patentee after: Shenhua Shendong Coal Group Corp.,Ltd.

Patentee after: Hebei Jinglong Intelligent Equipment Co.,Ltd.

Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing

Patentee before: China Shenhua Energy Co.,Ltd.

Country or region before: China

Patentee before: Shenhua Shendong Coal Group Corp.,Ltd.

Patentee before: LANGFANG JINGLONG HEAVY MACHINERY Co.,Ltd.