CN207671519U - Mining anti-tank automatic stop block of leaping up - Google Patents
Mining anti-tank automatic stop block of leaping up Download PDFInfo
- Publication number
- CN207671519U CN207671519U CN201721018991.1U CN201721018991U CN207671519U CN 207671519 U CN207671519 U CN 207671519U CN 201721018991 U CN201721018991 U CN 201721018991U CN 207671519 U CN207671519 U CN 207671519U
- Authority
- CN
- China
- Prior art keywords
- car arrester
- tank
- cage
- leaping
- traffic
- 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.)
- Expired - Fee Related
Links
Landscapes
- Soil Working Implements (AREA)
Abstract
The utility model discloses a kind of mining anti-tank automatic stop blocks of leaping up, including opening and closing device and electric control gear outside tank car arrester of preventing leaping up in tank, tank；Anti- tank car arrester of leaping up includes the preceding car arrester coordinated with the wheelspan of mine car, preceding car arrester opening and closing control mechanism and rear car arrester in tank, preceding car arrester opening and closing control mechanism includes preceding swing component, kinematic link, rear swing component and weave control bar, and rear car arrester includes the electronic back-stop mechanism that the pawl position of holding up traffic of car arrester after corresponding to is fixedly mounted on inside cage disk body；The position that the outer opening and closing device of tank corresponds to weave control bar is arranged on cage chair, and the outer opening and closing device of tank includes compression bar and resetting-mechanism；Electric control gear includes controller and rear car arrester open and close control circuit, and controller is electrically connected with electronic back-stop mechanism.This is mining to prevent tank automatic stop block of leaping up, simple in structure, easy for installation, easy to operate, can realize and be automatically brought into operation, the disengaging mine car operation promoted especially suitable for mine vertical shaft.
Description
Technical field
The utility model is related to a kind of mining car stopper, specifically a kind of mine vertical shaft lifting system cage that is suitable for passes in and out
The mining anti-tank automatic stop block of leaping up of mine car, belongs to vertical shaft hoisting technical field.
Background technology
Vertical is also known as vertical shaft, is the main exit that down-hole leads to ground, is for promoting valuable mineral, upper servant
Member transfers the vertical working of material installation and ventilating drainage.Wherein vertical shaft hoisting is generally divided into main shaft and auxiliary shaft, and main shaft transports coal
Charcoal, auxiliary shaft hoisting personnel, material etc..
Cage is as hoisting container, and for transporting personnel, ore and material, cage transports ore and material usually using mine
Vehicle is equipped with track in cage, mine car enters cage by cage chair, to prevent mine car from jumping in cage usually in cage
Car arrester is set on track, when travel position car arrester closing mine car is located in cage, mine car is into car arrester when doing well
Opening allows mine car to pass in and out cage.
Car arrester is purely mechanic drive mechanism mostly in the prior art, i.e., when mine car enters cage, operating personnel are introduced into
Cage operation car arrester handle lifts after so that its opening is positioned mine car further out cage operation cage, and not only operating personnel work
Intensity is big, operating efficiency is low, and there are security risks；Also occurs the knot opened using hydraulic drive external force in the prior art
Hydraulic system is arranged in structure in cage, although the purpose for reducing labor intensity can be realized, need to add auxiliary device, no
It is only complicated, use cost is high, and still needs operating personnel to pass in and out cage and operates, while plant maintenance is more numerous
It is multiple.
Invention content
In view of the above-mentioned problems of the prior art, the utility model provides a kind of mining anti-tank automatic stop block of leaping up, knot
Structure is simple, easy for installation, easy to operate, can realize and be automatically brought into operation, the disengaging mine car behaviour promoted especially suitable for mine vertical shaft
Make.
To achieve the goals above, this mining anti-tank automatic stop block of leaping up includes that tank car arrester, tank opening and closing outside of leaping up are prevented in tank
Device and electric control gear；
Anti- tank car arrester of leaping up includes the preceding car arrester coordinated with the wheelspan of mine car, preceding car arrester folding control in the tank
It is two sets that mechanism and rear car arrester, preceding car arrester and rear car arrester, which are respectively symmetrical set relative to cage inside rail, preceding
Car arrester and rear car arrester include the pawl of holding up traffic swung perpendicular to cage inside rail direction, support hold up traffic pawl support axis pin and
The support base of support axis pin is set up, pawl of holding up traffic is set by supporting pin pedestal on support base, and support base is fixedly mounted on
On cage disk body；
Preceding car arrester opening and closing control mechanism includes preceding swing component, kinematic link, rear swing component and weave control bar；Transmission connects
Axially position is set up mounted on the inside of cage disk body bar along the longitudinal direction；The position of the pawl of holding up traffic of car arrester before preceding swing component corresponds to
Set radial positioning be mounted on kinematic link front end, preceding swing component include stretched out along kinematic link radial direction, with before hold up traffic
The preceding oscillating rod of the bottom end articulated connection of the pawl of holding up traffic of device, is additionally provided with counterweight on preceding oscillating rod；Swing component is located at rear car arrester afterwards
Rear and be fixedly mounted on the rear end of kinematic link, rear swing component includes the rear swing stretched out along kinematic link radial direction
Bar；The position of the rear oscillating rod of swing component perpendicular to cage disk body and is installed through cage disk body after weave control bar corresponds to
Upper and weave control bar bottom end acts against on the rear oscillating rod of rear swing component, and the central axes of weave control bar connect with transmission
The central axes spatial vertical setting of bar；
Car arrester includes that the pawl position of holding up traffic of car arrester after corresponding to is fixedly mounted on the electronic check inside cage disk body afterwards
Mechanism, electronic back-stop mechanism include the telescopic direction automatically controlled extensible member consistent with the folding direction of the pawl of holding up traffic of rear car arrester,
The pawl bottom end articulated connection of holding up traffic of the telescopic end of automatically controlled extensible member and rear car arrester；
The position that the outer opening and closing device of the tank corresponds to weave control bar is arranged on cage chair, outer opening and closing device of tank or so pair
Title is set as two sets and the outer opening and closing device of two sets of tanks is arranged on the medial surface of cage chair track, and the outer opening and closing device of tank includes compression bar
And resetting-mechanism；The length dimension of compression bar and the wheelspan of mine car coordinate and compression bar is obliquely installed along cage chair track front-rear direction, presses
The rear end of bar is located at below the track upper surface of cage chair track, articulated connection is in cage chair track, and the front end of compression bar is located at cage chair road
Above the track upper surface of rail, it is crimped on weave control bar；The lower section that resetting-mechanism is located at compression bar is mounted on cage chair, is resetted
Mechanism includes resetting spring, and resetting spring one end acts against on compression bar, the other end acts against on cage chair；
The electric control gear includes controller and rear car arrester open and close control circuit, and controller is electric with electronic back-stop mechanism
Connection.
As further improvement of the utility model scheme, the resetting-mechanism further includes wearing to be connected on resetting spring
Connecting shaft is resetted, the bottom end for resetting connecting shaft is worn and connect on cage chair.
As further improvement of the utility model scheme, the top of the reset connecting shaft connect with compression bar, bottom end
It is connect with cage chair.
As further improvement of the utility model scheme, buffer gear, buffer are additionally provided on the preceding car arrester
Structure includes being arranged to lean in the buffer spring of preceding car arrester front or behind and the spacing top that is slidably installed on cage disk body
Plate, one end of buffer spring is fixedly connected on cage disk body, the other end and spacing top backup plate connect.
As further improvement of the utility model scheme, weave control bar is corresponded on the rear oscillating rod of the swing component
The position of bottom end running orbit is equipped with guide chute, and the bottom end of the weave control bar acts against in guide chute.
Compared with prior art, this mining anti-tank automatic stop block of leaping up first passes through car arrester after electric control gear control, leads to again
It crosses during the outer mine car of tank advances and vehicle is grasped, it can be achieved that cage passes in and out mine car by the action of car arrester before opening and closing device control outside tank
Automatic running and anti-tank of leaping up, be suitable for the disengaging mine car operation that all mine vertical shafts are promoted, and automatic running, it is easy for installation,
Operation intensity is greatly reduced, production efficiency is improved, the disengaging mine car operation promoted especially suitable for mine vertical shaft.
Description of the drawings
Fig. 1 is the structural schematic diagram of anti-tank car arrester of leaping up in the utility model tank；
Fig. 2 is the A direction views of Fig. 1；
Fig. 3 is the structural schematic diagram of the outer opening and closing device of the utility model tank；
Fig. 4 is the vertical view of Fig. 3.
In figure：1, prevent leaping up tank car arrester in tank, 11, preceding car arrester, 12, preceding swing component, 13, kinematic link, 14, rear swing
Part, 15, weave control bar, 16, rear car arrester, 17, electronic back-stop mechanism, 2, the outer opening and closing device of tank, 21, compression bar, 22, reset
Mechanism, 3, cage inside rail, 4, cage chair, 5, cage chair track.
Specific implementation mode
The utility model is described further below in conjunction with the accompanying drawings and (is retouched as front in the direction for entering cage using mine car below
It states).
As shown in Figure 1, Figure 3, this mining anti-tank automatic stop block of leaping up includes being opened and closed dress outside anti-leap up tank car arrester 1, tank in tank
Set 2 and electric control gear.
Anti- tank car arrester 1 of leaping up includes the preceding car arrester 11 coordinated with the wheelspan of mine car, the folding of preceding car arrester in the tank
Control mechanism and rear car arrester 16, preceding car arrester 11 and rear car arrester 16 are respectively set relative to cage inside rail 3 is symmetrical
It is set to two sets, preceding car arrester 11 and rear car arrester 16 include the pawl of holding up traffic swung perpendicular to 3 direction of cage inside rail, support resistance
The support axis pin of vehicle pawl and the support base for setting up support axis pin, pawl of holding up traffic are set on support base by supporting pin pedestal, are propped up
Support seat is fixedly mounted on cage disk body；
Preceding car arrester opening and closing control mechanism includes preceding swing component 12, kinematic link 13, rear swing component 14 and weave control bar
15；Axially position is set up mounted on the inside of cage disk body kinematic link 13 along the longitudinal direction；Preceding swing component 12 is held up traffic before corresponding to
The position radial positioning of the pawl of holding up traffic of device 11 is mounted on the front end of kinematic link 13, and preceding swing component 12 includes along kinematic link 13
Preceding oscillating rod that radial direction is stretched out, with the bottom end articulated connection of the pawl of holding up traffic of preceding car arrester 11 is additionally provided on preceding oscillating rod
Counterweight, the pawl of holding up traffic of car arrester 11, which is in close always, before counterweight can make finishes state；Swing component 14 is located at rear car arrester 16 afterwards
Rear and the rear end for being fixedly mounted on kinematic link 13, rear swing component 14 include after the stretching of 13 radial direction of kinematic link
Oscillating rod；The position of the rear oscillating rod of swing component 14 perpendicular to cage disk body and is installed through tank after weave control bar 15 corresponds to
On the cage disk body and bottom end of weave control bar 15 acts against on the rear oscillating rod of rear swing component 14, and as shown in figure 3, swings control
The central axes of bar 15 processed and the central axes spatial vertical of kinematic link 13 are arranged, can be with by controlling the flexible of weave control bar 15
The preceding oscillating rod band of swing component 12 before the rear oscillating rod of swing component 14 drives kinematic link 13 to rotate in a circumferential direction and then realizes after realization
The opening and closing movement of the pawl of holding up traffic of car arrester 11 before dynamic；
As shown in Fig. 2, the pawl position of holding up traffic that rear car arrester 16 includes car arrester 16 after corresponding to is fixedly mounted on cage disk body
Internal electronic back-stop mechanism 17, electronic back-stop mechanism 17 include the folding direction of telescopic direction and the pawl of holding up traffic of rear car arrester 16
Consistent automatically controlled extensible member, the pawl bottom end articulated connection of holding up traffic of the telescopic end of automatically controlled extensible member and rear car arrester 16.
The position that the outer opening and closing device 2 of the tank corresponds to weave control bar 15 is arranged on cage chair 4, as shown in figure 4, outside tank
Opening and closing device 2, which is symmetrical set, to be arranged for opening and closing device 2 outside two sets and two sets of tanks on the medial surface of cage chair track 5, outside tank
Opening and closing device 2 includes compression bar 21 and resetting-mechanism 22；The cooperation of the wheelspan of the length dimension of compression bar 21 and mine car and 21 edge of compression bar
5 front-rear direction of cage chair track is obliquely installed, and the rear end of compression bar 21 is located at below the track upper surface of cage chair track 5, is articulated and connected
It is located above the track upper surface of cage chair track 5, is crimped on weave control bar 15 in the front end of cage chair track 5, compression bar 21；
The lower section that resetting-mechanism 22 is located at compression bar 21 is mounted on cage chair 4, and resetting-mechanism 22 includes resetting spring, resetting spring one end top
Lean against on compression bar 21, the other end acts against on cage chair 4, mine car not by when cage chair 4 the elastic force of resetting spring act on down-pressed pole
21 keep front end higher than the track upper supernatant phase of cage chair track 5.
The electric control gear includes controller and rear car arrester open and close control circuit, controller and electronic back-stop mechanism 17
Electrical connection.
This is mining it is anti-leap up tank automatic stop block in cage travel position, under the action of the counterweight of preceding oscillating rod before hold up traffic
The pawl of holding up traffic of device 11, which is in close always, finishes state, and the controller of electric control gear controls the automatically controlled pars contractilis of electronic back-stop mechanism 17
Part, which is in, stretches out the complete state of pawl conjunction of holding up traffic for making rear car arrester 16, and mine car is by the resistance of preceding car arrester 11 and rear car arrester 16 at this time
Vehicle pawl is located on cage inside rail 3, by safety block inside cage；
Cage chair 4 is fallen after cage rests in entrucking position docks with cage, first controls the controller of electric control gear at this time
So that the pawl of holding up traffic of car arrester 16 after the automatically controlled extensible member retraction of electronic back-stop mechanism 17 is in open state, is then within tank
Mine car outside cage enters cage by cart mechanism cart；The preceding wheel rim of mine car outside cage rolls when passing through compression bar 21
Compression bar 21 makes compression bar 21 be moved down along the overturning of its articulated shaft, and i.e. pressing weave control bar 15 makes weave control bar for the front end of compression bar 21
15 axial movements push, and the rear oscillating rod of swing component 14 drives the circumferential rotation of kinematic link 13 after weave control bar 15 pushes in the process
Turn and then the preceding oscillating rod of preceding swing component 12 drives the pawl of holding up traffic of preceding car arrester 11 to open, the mine car in cage is outside cage
Mine car promotion under be driven out to cage, the mine car outside cage under cart mechanism urges enter cage；Mine outside cage
When the trailing wheel wheel rim of vehicle is detached from the front end of compression bar 21, overturns and restore along its articulated shaft in the elastic force effect down-pressed pole 21 of resetting spring
State to front end higher than the track upper surface of cage chair track 5, while the preceding car arrester 11 under the action of the counterweight of preceding oscillating rod
Pawl of holding up traffic revert to conjunction finish state, that is, realize out the obstruction in vehicle direction, then control electric control gear controller make it is electronic inverse
The automatically controlled extensible member of locking mechanism 17 stretches out, that is, realizes that the secure localization of the newly mine car into cage is held up traffic.
In order to ensure resetting-mechanism 22 resetting spring strong fix, as further improvement of the utility model side
Case, the resetting-mechanism 22 further include wearing the reset connecting shaft being connected on resetting spring, and the bottom end for resetting connecting shaft wears and connects peace
On cage chair 4.
In order to limit the degree of freedom of compression bar 21, prevent compression bar 21 not by being reversed overturning in the case of mine car to cage chair
On 4, the outer control of opening and closing device 2 failure of tank is in turn resulted in, as further improvement of the utility model scheme, the reset connects
The top of spindle is connect with compression bar 21, bottom end and cage chair 4 connect.
In order to realize buffering, prevent preceding car arrester 11 from being damaged due into the rigid collision of the mine car 2 of cage, as this reality
With the novel scheme that is further improved, buffer gear is additionally provided on the preceding car arrester 11, buffer gear includes being arranged preceding
The buffer spring of 11 front or behind of car arrester and the spacing top backup plate being slidably installed on cage disk body, buffer spring
One end be fixedly connected on cage disk body, the other end and spacing top backup plate connection；Before mine car is acted against with certain inertia
Car arrester 11 pushes preceding car arrester 11 that whole move forward of preceding swing component 12 is driven to act against spacing top backup plate when holding up traffic on pawl
On, the stop of mine car is realized under the cushioning effect of buffer spring, while realizing car arrester 11 before protection.
In order to realize the top pressure effect more firm to the rear oscillating rod of rear swing component 14 of weave control bar 15, as this practicality
Novel is further improved scheme, and 15 bottom end running orbit of weave control bar is corresponded on the rear oscillating rod of the swing component 14
Position is equipped with guide chute, and the bottom end of the weave control bar 15 acts against in guide chute.
Car arrester 16 after anti-tank automatic stop block of leaping up first passes through electric control gear control that this is mining is advanced by mine car outside tank again
The action of car arrester 11 is, it can be achieved that cage passes in and out the automatic running that mine car grasps vehicle before being controlled in the process by opening and closing device outside tank 2
And anti-tank of leaping up, it is suitable for the disengaging mine car operation that all mine vertical shafts are promoted, and automatic running, it is easy for installation, it greatly reduces
Operation intensity, improves production efficiency, the disengaging mine car operation promoted especially suitable for mine vertical shaft.
Claims (5)
1. a kind of mining anti-tank automatic stop block of leaping up, including tank car arrester (1) of leaping up is prevented in tank, tank car arrester of leaping up is prevented in the tank
(1) include the preceding car arrester (11) coordinated with the wheelspan of mine car and rear car arrester (16), preceding car arrester (11) and rear car arrester
(16) it is two sets to be respectively symmetrical set relative to cage inside rail (3), and preceding car arrester (11) and rear car arrester (16) are equal
Include perpendicular to cage inside rail (3) direction pawl of holding up traffic swung, the support axis pin for supporting pawl of holding up traffic and erection support axis pin
Support base, pawl of holding up traffic are set by supporting pin pedestal on support base, and support base is fixedly mounted on cage disk body；It is special
Sign is,
Car arrester opening and closing control mechanism before anti-tank car arrester (1) of leaping up further includes in the tank, preceding car arrester opening and closing control mechanism
Including preceding swing component (12), kinematic link (13), rear swing component (14) and weave control bar (15)；Kinematic link (13) is along front and back
Direction axial direction locating rack is set mounted on the inside of cage disk body；The position of the pawl of holding up traffic of car arrester (11) before preceding swing component (12) is corresponding
The front end that radial positioning is mounted on kinematic link (13) is set, preceding swing component (12) includes being stretched out along kinematic link (13) radial direction
, preceding oscillating rod with the bottom end articulated connection of the pawl of holding up traffic of preceding car arrester (11), be additionally provided with counterweight on preceding oscillating rod；After swing
Part (14) is located at the rear of rear car arrester (16) and is fixedly mounted on the rear end of kinematic link (13), and rear swing component (14) includes
The rear oscillating rod stretched out along kinematic link (13) radial direction；The rear oscillating rod of swing component (14) after weave control bar (15) is corresponding
Position perpendicular to cage disk body and be installed through on cage disk body and the bottom end of weave control bar (15) act against after swing
On the rear oscillating rod of part (14), and the central axes of weave control bar (15) and the central axes spatial vertical of kinematic link (13) are set
It sets；
The rear car arrester (16) includes that the pawl position of holding up traffic of car arrester (16) after corresponding to is fixedly mounted on inside cage disk body
Electronic back-stop mechanism (17), the folding side that electronic back-stop mechanism (17) includes telescopic direction with the pawl of holding up traffic of rear car arrester (16)
To consistent automatically controlled extensible member, the pawl bottom end articulated connection of holding up traffic of the telescopic end of automatically controlled extensible member and rear car arrester (16)；
This is mining, and anti-tank automatic stop block of leaping up further includes the outer opening and closing device (2) of tank and electric control gear；
The position of the corresponding weave control bar (15) of the outer opening and closing device (2) of the tank is arranged on cage chair (4), the outer opening and closing device of tank
(2) it is symmetrical set and is arranged on the medial surface of cage chair track (5) for opening and closing device (2) outside two sets and two sets of tanks, tank external-open
It includes compression bar (21) and resetting-mechanism (22) to close device (2)；The cooperation of the wheelspan of the length dimension of compression bar (21) and mine car and compression bar
(21) along cage chair track (5), front-rear direction is obliquely installed, and the rear end of compression bar (21) is located under the track upper surface of cage chair track (5)
In cage chair track (5), the front end of compression bar (21) is located above the track upper surface of cage chair track (5), is crimped on for side, articulated connection
On weave control bar (15)；The lower section that resetting-mechanism (22) is located at compression bar (21) is mounted on cage chair (4), resetting-mechanism (22) packet
Resetting spring is included, resetting spring one end acts against on compression bar (21), the other end acts against on cage chair (4)；
The electric control gear includes controller and rear car arrester open and close control circuit, and controller is electric with electronic back-stop mechanism (17)
Connection.
2. mining anti-tank automatic stop block of leaping up according to claim 1, which is characterized in that the resetting-mechanism (22) is also
Including wearing the reset connecting shaft being connected on resetting spring, the bottom end for resetting connecting shaft is worn and is connect on cage chair (4).
3. mining anti-tank automatic stop block of leaping up according to claim 2, which is characterized in that the top of the reset connecting shaft
End is connect with compression bar (21), bottom end and cage chair (4) connect.
4. mining anti-tank automatic stop block of leaping up according to claim 1 or 2 or 3, which is characterized in that the preceding car arrester
(11) buffer gear is additionally provided on, buffer gear includes buffer spring and the sliding being arranged in preceding car arrester (11) front or behind
The spacing top backup plate being fitted on cage disk body, one end of buffer spring is fixedly connected on cage disk body, the other end with
Spacing top backup plate connects.
5. mining anti-tank automatic stop block of leaping up according to claim 1 or 2 or 3, which is characterized in that the swing component
(14) position that weave control bar (15) bottom end running orbit is corresponded on rear oscillating rod is equipped with guide chute, the swing control
The bottom end of bar (15) processed acts against in guide chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721018991.1U CN207671519U (en) | 2017-08-15 | 2017-08-15 | Mining anti-tank automatic stop block of leaping up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721018991.1U CN207671519U (en) | 2017-08-15 | 2017-08-15 | Mining anti-tank automatic stop block of leaping up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207671519U true CN207671519U (en) | 2018-07-31 |
Family
ID=62953832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721018991.1U Expired - Fee Related CN207671519U (en) | 2017-08-15 | 2017-08-15 | Mining anti-tank automatic stop block of leaping up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207671519U (en) |
-
2017
- 2017-08-15 CN CN201721018991.1U patent/CN207671519U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104773637A (en) | Asynchronous door knife with car lock, elevator door motor and car system | |
| CN208695098U (en) | A kind of hydraulic breaker | |
| CN104773638A (en) | Asynchronous door knife having car door lock, elevator door motor and car door system | |
| CN201650331U (en) | Onboard temporary supporting device | |
| CN207332921U (en) | One kind is based on the interim shield support of coal mining fully-mechanized digging machine | |
| CN202882911U (en) | Driving-bolting machine with integrated driving-bolting drill | |
| CN207671519U (en) | Mining anti-tank automatic stop block of leaping up | |
| CN204140065U (en) | Heavy grade rock drilling development machine | |
| CN108999570A (en) | Tunnel drill carriage | |
| CN210418882U (en) | Automatic car arrester installed in cage | |
| CN206092043U (en) | From moving protector | |
| CN103587547B (en) | A kind of flexibility for mine gradient tunnel is kept off a car mechanism | |
| CN203222832U (en) | Crushing and loading dinting machine for coal mine | |
| CN215485863U (en) | Compact advance support single-rail double-arm hydraulic anchor rod drill carriage | |
| CN208813193U (en) | A kind of transport device for underground excavation barren rock | |
| CN205172573U (en) | Doffer combination formula great mining height coal -winning machine | |
| CN205204072U (en) | Novel crossheading equipment mobile system | |
| CN210858595U (en) | Coal mine drilling machine supporting device | |
| CN201193525Y (en) | Vehicle-mounted temporary support device for development machine | |
| CN104442246B (en) | railway guide bridge structure | |
| CN212333725U (en) | Chain flight preventing device of chain plate machine for underground tunneling of coal mine | |
| CN208907347U (en) | Tunnel drill carriage | |
| CN107035393B (en) | A kind of airborne hydraulic anchor pole drilling equipment | |
| CN204322955U (en) | Railway guide bridge structure | |
| CN205822972U (en) | A kind of emergency unlocking device for door system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180731 Termination date: 20190815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |