CN206053949U - The fluting machinery arm assembly of underground mine use fluting equipment - Google Patents
The fluting machinery arm assembly of underground mine use fluting equipment Download PDFInfo
- Publication number
- CN206053949U CN206053949U CN201621066016.3U CN201621066016U CN206053949U CN 206053949 U CN206053949 U CN 206053949U CN 201621066016 U CN201621066016 U CN 201621066016U CN 206053949 U CN206053949 U CN 206053949U
- Authority
- CN
- China
- Prior art keywords
- fluting
- revolution driving
- arm
- grooving tool
- main backstop
- 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
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of fluting machinery arm assembly of underground mine use fluting equipment, the main backstop that is connected with the traction machine car body extreme end of chassis including the main backstop advancing jack being horizontally mounted in left-right direction and arranged by fore-and-aft direction, vertical direction are installed in the secondary bracing frame of main backstop medium position, the reversing frame on secondary bracing frame, the telescopic arm on reversing frame and the fluting equipment on telescopic arm；Fluting equipment includes that grooving tool revolution driving, L-type installing rack, grooving tool, one-level revolution driving and two-stage rotary drive, the axis of rotation fore-and-aft direction of grooving tool revolution driving is arranged, grooving tool includes that the center of circular saw and drill bit, circular saw and drill bit is equipped with quick-connect machanism.The mechanical arm assembly of fluting of this underground mine use fluting equipment can ensure enough groove depths on the premise of enough fluting broken rock driving forces, larger working range is provided, and be particularly well-suited to underground coal mine fluting operation.
Description
Technical field
This utility model is related to a kind of mechanical arm assembly, specifically a kind of groover suitable for underground coal mine fluting work
Tool arm assembly, belongs to coal mine machinery technical field.
Background technology
Coal mine gob referred in the operation process of colliery, will underground coal or gangue etc. exploit after the completion of the sky that stays
Hole or cavity, as in process of coal mining, goaf has a substantial amounts of float coal left, float coal exists for colliery spontaneous combustion
There is provided goods and materials condition, colliery spontaneous combustion seriously threatens the safety in production in colliery, governs the production in colliery, and goaf colliery
Spontaneous combustion occupies part and parcel in colliery spontaneous combustion occurs totality, and goaf colliery spontaneous combustion in China's State owned coal mine accounts for spontaneous combustion
The 60% of fire, wherein most fire is that have leakage wind-induced, strengthen to heterogeneous goaf prevent effectively control colliery
The generation of fire.
It is that one is constructed between goaf and Fu Yun lanes to block up closed body of wall to prevent from leaking out under normal circumstances, and in order to ensure
Sealing effectiveness, it usually needs excavate a groove on the rib in connection lane, closed body of wall by the recess-mounted in the rib with
Realize better seal effect between goaf and Fu Yun lanes.
As coal mine down-hole tunnel narrow space, working range are limited, work under bad environment, therefore open on rib at present
Groove generally carries out high-altitude manual work completing by setting up shelf, and not only high labor intensive, working performance are low, and ascend a height
Operation has higher work safety hidden danger, simultaneously as the problem of artificial working sense of responsibility, the groove outputed is in length, width
It is generally difficult to meet the size of seal request in degree, depth, so as to there is potential safety hazard of leaking out；In addition, big produced by fluting
Amount cinder needs to transport by artificial loading, further increases the labor intensity of workmen.
Underground coal mine Special-purpose grooving machine is had in prior art, the fluting of rib, but single function, equipment can be carried out
Utilization rate is not high, and opened by the roll structure fluting equipment work head similar to pavement milling machine milling head
Groove, this structure work head can the wider area of a milling rib, but for reach groove depth generally need adopt
The milling cylinder of large-size, not only causes volume increase, is not suitable for narrow tunnel, and larger size causes to drive
Power increase, plant capacity accordingly increase, but less space mounting size and larger driving power, wider work surface
In the case that product has hard rock in forming contradiction, particularly coal seam or top board, base plate, enough driving forces cannot be often provided,
And then produce the situation of " gnawing motionless ", still need to manually broken adopting.
The content of the invention
For the problem that above-mentioned prior art is present, this utility model provides a kind of fluting of underground mine use fluting equipment
Mechanical arm assembly, can be in the premise for providing enough fluting broken rock driving forces, less overall dimensions, larger working range
The lower labor intensity for ensureing enough groove depths, reducing workmen, is particularly well-suited to underground coal mine fluting operation.
The mechanical arm assembly of fluting of this underground mine use fluting equipment is arranged on the rear of traction machine, including main backstop,
Secondary bracing frame, reversing frame, telescopic arm and fluting equipment；
Described main backstop is horizontally arranged at the rear end of the chassis of vehicle body of traction machine in left-right direction, and main backstop is logical
Cross main backstop advancing jack and the chassis of vehicle body of traction machine of fore-and-aft direction setting rear end install be connected, main backstop and
Guiding slipping mechanism is provided between the chassis of vehicle body of traction machine, the two ends of main backstop are additionally provided with the retractable support being vertically arranged
Lower limb；
Described secondary bracing frame vertical direction is arranged on the medium position of main backstop；
Described reversing frame is arranged on secondary bracing frame, including revolving support and revolution driving；
Described telescopic arm includes basic arm and the flexible joint arm of at least one section, and basic arm is fixedly mounted on the revolution of reversing frame
In support, and the telescopic direction of flexible joint arm arrange along the radial direction of the revolving support of reversing frame, joint arm of stretching socket is installed
Inside basic arm, and flexible joint arm be connected with basis arm by telescopic arm telescopic jack；
Described fluting equipment includes that grooving tool revolution driving, L-type installing rack, grooving tool, one-level revolution are driven
Dynamic and two-stage rotary drives；Grooving tool revolution driving is fixedly mounted on L-type installing rack, and grooving tool revolution driving return
Shaft axis fore-and-aft direction is arranged；L-type installing rack is provided with hydraulic tongs；Grooving tool includes circular saw and drill bit, circular saw and brill
The center of head is equipped with quick-connect machanism；L-type installing rack is installed with the end of flexible joint arm by one-level revolution driving and is connected,
The axis of rotation vertical direction of one-level revolution driving is arranged, and the rotary output shaft of one-level revolution driving is fixed with L-type installing rack and connected
Connect；Two-stage rotary drive rotary output shaft be fixedly connected with the body of one-level revolution driving, two-stage rotary drive body and
The end of flexible joint arm is installed by connection.
Used as further improvement of the utility model scheme, described telescopic support legs are bi-directional expansion hydraulic cylinders.
As further improvement of the utility model scheme, the position of grooving tool is corresponded on described L-type installing rack also
It is provided with coolant nozzle.
Compared with prior art, the fluting equipment of the mechanical arm assembly of fluting of this underground mine use fluting equipment is opened
Groove instrument revolution driving is fixedly mounted on L-type installing rack and is installed with the end of telescopic arm by L-type installing rack and is connected, and opens
The axis of rotation fore-and-aft direction of groove instrument revolution driving is arranged, and grooving tool includes circular saw, circular saw by quick connection
Mechanism is connected with the rotary output shaft of grooving tool revolution driving, due to the relatively existing groover roll of the thickness of circular saw
The width dimensions of arrangement works head are much smaller, therefore circular saw cuts the counteracting force being subject to when rib or crag in grooving process
With respect to much smaller, enter without very big driving force, will not produce the situation of " gnawing motionless " such that it is able in less installation
Realize providing enough driving forces on the premise of space and installation dimension；Due to being cut to rib or crag using circular saw
Cut, therefore the requirement of groove depth can be met by the diameter dimension for rationally arranging circular saw, it is easy to use；Due to main support
Frame is installed with the rear end of the chassis of vehicle body of traction machine by the main backstop advancing jack that fore-and-aft direction is arranged and is connected, therefore logical
Cross the flexible of control main backstop advancing jack and can realize precise control stepping step pitch；Due to slotting, equipment also includes
One-level revolution driving, grooving tool also include drill bit, and the axis of rotation vertical direction of one-level revolution driving is arranged, therefore have worked as
Into after the cutting of rib or crag otch circular saw can be replaced by the rock mass inside drill bit cross-notching pit carries out drilling operation
To ensure that the rock mass inside fluting pit smoothly comes off；Due to slotting, equipment is also driven including two-stage rotary, and two grades are returned
The axis of rotation fore-and-aft direction for turning to drive is arranged, one-level revolution driving is driven by two-stage rotary and the end of telescopic arm is installed and connected
Connect, therefore can make grooving tool revolution driving along the upper and lower rotary oscillation of axis of rotation that two-stage rotary drives to realize without dead angle
Cutting, and then larger working range is realized, it is particularly well-suited to underground coal mine fluting operation.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the right view of Fig. 1.
Sequence number and title in figure：1st, traction machine, 2, main backstop, 21, telescopic support legs, 3, secondary bracing frame, 4, reversing frame,
5th, telescopic arm, 51, basic arm, 52, telescopic arm, 6, fluting equipment, 61, grooving tool revolution driving, 62, L-type installing rack,
63rd, grooving tool, 64, one-level revolution driving, 65 two-stage rotaries drive.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described further（Below with the fluting of this underground mine use fluting equipment
The normally travel direction of mechanical arm assembly is described for front）.
As shown in Figure 1 to Figure 3, after the mechanical arm assembly of the fluting of this underground mine use fluting equipment is arranged on traction machine 1
Side.
This fluting machinery arm assembly includes main backstop 2, secondary bracing frame 3, reversing frame 4, telescopic arm 5 and fluting equipment
6。
Described main backstop 2 is horizontally arranged at the rear end of the chassis of vehicle body of traction machine 1, and main backstop in left-right direction
2 are connected with the rear end installation of the chassis of vehicle body of traction machine 1 by the main backstop advancing jack that fore-and-aft direction is arranged, main support
Guiding slipping mechanism is provided between the chassis of vehicle body of frame 2 and traction machine 1, the two ends of main backstop 2 are additionally provided with what is be vertically arranged
Telescopic support legs 21；Fluting operation before operate telescopic support legs 21 be allowed to stretch out be supported on base plate can increase fluting operation when
The stability of whole machine.
Described 3 vertical direction of secondary bracing frame is arranged on the medium position of main backstop 2.
Described reversing frame 4 is arranged on secondary bracing frame 3, and including revolving support and revolution driving, revolution driving can be driven
Dynamic revolving support is rotated in the range of 360 ° along the center of rotation of reversing frame 4.
Described telescopic arm 5 includes basic arm 51 and the flexible joint arm 52 of at least one section, and basic arm 51 is fixedly mounted on revolution
On the revolving support of frame 4, and the telescopic direction of flexible joint arm 52 arrange along the radial direction of the revolving support of reversing frame 4, stretch
The socket of joint arm 52 inside basic arm 51, and flexible joint arm 52 be connected with basis arm 51 by telescopic arm telescopic jack.
Described fluting equipment 6 includes grooving tool revolution driving 61, L-type installing rack 62, grooving tool 63, one-level
Revolution driving 64 and two-stage rotary drive 65；Grooving tool revolution driving 61 is fixedly mounted on L-type installing rack 62, and work of slotting
The axis of rotation fore-and-aft direction of tool revolution driving 61 is arranged；L-type installing rack 62 is provided with hydraulic tongs；Grooving tool 63 includes disk
The center of saw and drill bit, circular saw and drill bit is equipped with quick-connect machanism, and circular saw and drill bit can respectively by quick connection
Mechanism is connected with the rotary output shaft of grooving tool revolution driving 61；L-type installing rack 62 passes through one-level revolution driving 64 and stretches
Connection is installed in the end of joint arm 52, the axis of rotation vertical direction of one-level revolution driving 64 is arranged, and one-level revolution driving 64 is returned
Transfer shaft to be fixedly connected with L-type installing rack 62, L-type installing rack 62 can be realized by controlling the revolution of one-level revolution driving 64
Along 90 ° of upsets of axis of rotation fore-and-aft direction of one-level revolution driving 64, and then realize the gyroaxis of grooving tool revolution driving 61
Line is transformed to left and right directions by fore-and-aft direction；Two-stage rotary drives 65 rotary output shaft solid with the body of one-level revolution driving 64
Fixed to connect, two-stage rotary drives 65 body to be connected with the end installation of flexible joint arm 52, drives 65 by controlling two-stage rotary
Revolution can realize L-type installing rack 62 along two-stage rotary drive 65 axis of rotation swing up and down；Due to the thickness of circular saw
Size is little with respect to the width dimensions of roll arrangement works head, therefore circular saw cuts what is be subject to when rib or crag in grooving process
The driving force that counteracting force is less, need not be too big.
The mechanical arm assembly grooving apparatus assembly when fluting work is not carried out of fluting of this underground mine use fluting equipment
In being entirely retracted to state, the revolution driving rotation of controllable reversing frame 4 makes the telescopic arm 5 be in for telescopic support legs 21 and telescopic arm 5
Vertical state is brought inconvenience in 1 traveling process of traction machine with preventing the telescopic arm 5 of longer dimension.
When needs carry out fluting work, the fluting work of the mechanical arm assembly of fluting of equipment that first this underground mine use is slotted
Device 6 is vertical just the rib that need to slot or crag are stuck in need after slotting position, to operate telescopic support legs 21 to stretch out which it is firm
It is supported on base plate；Start grooving tool revolution driving 61, the output shaft of grooving tool revolution driving 61 drives circular saw at a high speed
Rotation, while the revolution driving for controlling reversing frame 4 selects suitable entrance angle and control telescopic arm telescopic jack action to make to stretch
Casing coupling arm 52 stretches out, and the plate edge of circular saw is pressed close to and cut from the orientation rib or crag being adapted to, and continues control telescopic arm
Telescopic jack action makes circular saw incision rib or crag to set depth；Then control the revolution driving of reversing frame 4, stretch
Arm telescopic jack co-operating makes circular saw move up and down continuous cutting along vertical wall, when being cut to top board or base plate and need
During angular position between the rib or crag of fluting, control two-stage rotary drives 65 revolutions to make L-type installing rack 62 drive fluting work
Tool revolution driving 61 drives 65 axis of rotation to swing up and down along two-stage rotary, while Collaborative Control telescopic arm telescopic jack is stretched
Go out to carry out to cut without dead angle；Complete after the cutting of an otch by control main backstop advancing jack it is flexible forward or to
Continue afterwards to cut another otch after one step pitch of stepping, until completing the cutting of all otch in the range of groove width；Then
Circular saw is replaced by into drill bit, controlling 64 revolution of one-level revolution driving makes the axis of rotation of grooving tool revolution driving 61 by front and back
Direction transformation is left and right directions, is then again started up grooving tool revolution driving 61, the output shaft of grooving tool revolution driving 61
Drilling bit high-speed rotary is driven, while the revolution driving for controlling reversing frame 4 selects suitable entrance angle and controls telescopic arm flexible thousand
Jin is pushed stretches out flexible joint arm 52, coal body or rock mass patch of the drill bit from the range of groove width after the orientation cutting being adapted to
Near and pierce, continuing control telescopic arm telescopic jack action makes drill bit pierce rib or crag to set depth, completes one
After drilling, the spacing dimension of reasonable keyhole continues to drill through another drilling after offseting a step pitch, until completing groove width
In the range of all of drilling；The finally revolution driving of control reversing frame 4, the telescopic arm telescopic jack of telescopic arm 5, one-level revolution
Drive 64 and two-stage rotary drive 65 make the jaw of the hydraulic tongs on L-type installing rack 62 just to and clamp the company between each drilling
Coal body or rock mass are connect, then control hydraulic pressure clamps together the connection coal body or rock mass finished between destruction drilling makes which come off.
During in order to realize the more firm support effect of telescopic support legs 21 and then guarantee fluting operation, whole machine is more stable, makees
For further improvement of the utility model scheme, described telescopic support legs 21 are bi-directional expansion hydraulic cylinders, double during fluting operation
It is respectively supported on top board and base plate to telescopic hydraulic cylinder two ends, and then realizes that whole machine is more stable during fluting operation.
In order to realize the cooling of the depositing dust in grooving process and cross-notching instrument 63, further change as of the present utility model
Enter scheme, the position of correspondence grooving tool 63 is additionally provided with coolant nozzle on described L-type installing rack 62, sprays in vaporific or column
The coolant for going out can directly cross-notching instrument 63 carry out cooling down, while realizing the purpose of depositing dust.
The grooving tool revolution driving of the fluting equipment 6 of the mechanical arm assembly of fluting of this underground mine use fluting equipment
61 be fixedly mounted on L-type installing rack 62 and installed with the end of flexible joint arm 52 by L-type installing rack 62 be connected, and fluting work
The axis of rotation fore-and-aft direction of tool revolution driving 61 is arranged, and grooving tool 63 includes circular saw, circular saw by quick connection
Mechanism is connected with the rotary output shaft of grooving tool revolution driving 61, due to the relatively existing groover roller of the thickness of circular saw
The width dimensions of shape arrangement works head are much smaller, therefore circular saw cuts the retroaction being subject to when rib or crag in grooving process
Power is relatively much smaller, enters without very big driving force, will not produce the situation of " gnawing motionless " such that it is able in less peace
Realize providing enough driving forces on the premise of dress space and installation dimension；Due to being cut to rib or crag using circular saw
Cut, therefore the requirement of groove depth can be met by the diameter dimension for rationally arranging circular saw, it is easy to use；Due to main support
Frame 2 is installed with the rear end of the chassis of vehicle body of traction machine 1 by the main backstop advancing jack that fore-and-aft direction is arranged and is connected, therefore
Precise control stepping step pitch can be realized by controlling the flexible of main backstop advancing jack；Due to slotting equipment 6 also
Also include drill bit including one-level revolution driving 64, grooving tool 63, and the axis of rotation vertical direction of one-level revolution driving 64 sets
Put, therefore the rock mass that can be replaced by circular saw inside drill bit cross-notching pit after the cutting for completing rib or crag otch enters
Row drilling operation is smoothly come off with ensureing the rock mass inside fluting pit；Due to slotting, equipment 6 is also driven including two-stage rotary
Dynamic 65, and two-stage rotary drives 65 axis of rotation fore-and-aft direction setting, one-level revolution driving 64 to drive 65 by two-stage rotary
Install with the end of flexible joint arm 52 and be connected, therefore can make grooving tool revolution driving 61 that 65 revolution is driven along two-stage rotary
The upper and lower rotary oscillation of axis is to realize cutting without dead angle, and then realizes larger working range, is particularly well-suited to underground coal mine and opens
Groove operation.
Claims (3)
1. the fluting machinery arm assembly that a kind of underground mine use fluting is equipped, installed in traction machine（1）Rear, its feature exists
In including main backstop（2）, secondary bracing frame（3）, reversing frame（4）, telescopic arm（5）With fluting equipment（6）；
Described main backstop（2）Traction machine is horizontally arranged in left-right direction（1）Chassis of vehicle body rear end, and main backstop
（2）The main backstop advancing jack arranged by fore-and-aft direction and traction machine（1）The rear end of chassis of vehicle body connection, main is installed
Bracing frame（2）With traction machine（1）Chassis of vehicle body between be provided with guiding slipping mechanism, main backstop（2）Two ends be additionally provided with
The telescopic support legs being vertically arranged（21）；
Described secondary bracing frame（3）Vertical direction is arranged on main backstop（2）Medium position；
Described reversing frame（4）Installed in secondary bracing frame（3）On, including revolving support and revolution driving；
Described telescopic arm（5）Including basic arm（51）The flexible joint arm of at least one section（52）, basic arm（51）It is fixedly mounted on
Reversing frame（4）Revolving support on, and flexible joint arm（52）Telescopic direction along reversing frame（4）Revolving support radial direction
Arrange, joint arm of stretching（52）Socket is installed in basic arm（51）Internal, and flexible joint arm（52）By telescopic arm telescopic jack
With basic arm（51）Connection；
Described fluting equipment（6）Including grooving tool revolution driving（61）, L-type installing rack（62）, grooving tool（63）、
One-level revolution driving（64）Drive with two-stage rotary（65）；Grooving tool revolution driving（61）It is fixedly mounted on L-type installing rack
（62）Upper, and grooving tool revolution driving（61）Axis of rotation fore-and-aft direction arrange；L-type installing rack（62）It is provided with hydraulic pressure
Pincers；Grooving tool（63）Quick-connect machanism is equipped with including the center of circular saw and drill bit, circular saw and drill bit；L-type is installed
Frame（62）By one-level revolution driving（64）With flexible joint arm（52）End install connection, one-level revolution driving（64）Revolution
Axis vertical direction is arranged, one-level revolution driving（64）Rotary output shaft and L-type installing rack（62）It is fixedly connected；Two-stage rotary
Drive（65）Rotary output shaft and one-level revolution driving（64）Body be fixedly connected, two-stage rotary drive（65）Body with
Flexible joint arm（52）End install connection.
2. the fluting machinery arm assembly that underground mine use fluting according to claim 1 is equipped, it is characterised in that described
Telescopic support legs（21）It is bi-directional expansion hydraulic cylinder.
3. the fluting machinery arm assembly that underground mine use fluting according to claim 1 is equipped, it is characterised in that described
L-type installing rack（62）Upper correspondence grooving tool（63）Position be additionally provided with coolant nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621066016.3U CN206053949U (en) | 2016-09-21 | 2016-09-21 | The fluting machinery arm assembly of underground mine use fluting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621066016.3U CN206053949U (en) | 2016-09-21 | 2016-09-21 | The fluting machinery arm assembly of underground mine use fluting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206053949U true CN206053949U (en) | 2017-03-29 |
Family
ID=58370731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621066016.3U Active CN206053949U (en) | 2016-09-21 | 2016-09-21 | The fluting machinery arm assembly of underground mine use fluting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206053949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439553A (en) * | 2019-08-30 | 2019-11-12 | 张有权 | A kind of underground coal mine groover |
-
2016
- 2016-09-21 CN CN201621066016.3U patent/CN206053949U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439553A (en) * | 2019-08-30 | 2019-11-12 | 张有权 | A kind of underground coal mine groover |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105804764B (en) | One kind bores the formula development machine that rises | |
| CN101832102B (en) | Movable two-platform partitioned four-arm hanging wall anchor rod and anchor cable construction drill carriage | |
| CN202131973U (en) | Full-hydraulic gallery drilling machine for drilling holes along soft coal layer of coal mine | |
| CN102094668A (en) | High-pressure hydraulic drilling, pressure releasing and protrusion removing method for upper drainage roadway | |
| CN201258685Y (en) | Machine-carried multi-arm digging drill | |
| CN101832103A (en) | Movable two-arm hanging wall anchor rod and anchor cable construction drill carriage | |
| CN103899249A (en) | Coal mine roadway bottom board anchoring drill carriage | |
| CN102278110A (en) | Movable two-arm of lifting platform hanging wall anchor rod and anchor cable construction drill carriage | |
| CN201826837U (en) | Movable double-platform partitioned four-arm drill carriage for construction of hangwall anchor rods and anchor cables | |
| CN109139012A (en) | A kind of mining chain arm saw is continuous to cut top seam method | |
| CN206554795U (en) | A kind of convertible multi-angle coal mine drilling machine of crawler travel | |
| CN203347686U (en) | Drilling machine for roadways | |
| CN110924861A (en) | Walking type omnibearing rotary hydraulic pile foundation drilling machine | |
| CN206053949U (en) | The fluting machinery arm assembly of underground mine use fluting equipment | |
| CN103256048B (en) | Combine and adopt coal drilling machine group recovery method | |
| CN206554794U (en) | A kind of colliery convertible all-direction borehole rig of crawler travel | |
| CN206111178U (en) | Equipment is reprinted in pit in colliery with fluting function | |
| CN109779678B (en) | A slot machine for taking out of this coal seam gas | |
| CN101845952A (en) | Movable three-arm top-assisting anchor rod and anchor cable construction drill carriage | |
| CN106368696B (en) | A kind of underground mine use fluting working equipment and its application method | |
| CN206111176U (en) | Colliery is in pit with mechanical hand of fluting of fluting equipment | |
| CN206448808U (en) | The colliery mechanical arm assembly of fluting | |
| CN206448810U (en) | The mechanical arm assembly of fluting of colliery fluting equipment | |
| CN206111177U (en) | All -round fluting machinery arm assembly is used in pit in colliery | |
| CN207892526U (en) | A kind of crawler type fluting pressure relief devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 221000 No. 99 Xu Hai Road, Xuzhou economic and Technological Development Zone, Jiangsu, Xuzhou Patentee after: Jiangsu Herun Intelligent Equipment Co., Ltd Address before: 221000 No. 99 Xu Hai Road, Xuzhou economic and Technological Development Zone, Jiangsu, Xuzhou Patentee before: XUZHOU HERE CRANE EQUIPMENT & TECH Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |