CN110294394A - Mine car passes in and out the plug-type behaviour's vehicle device of tank - Google Patents
Mine car passes in and out the plug-type behaviour's vehicle device of tank Download PDFInfo
- Publication number
- CN110294394A CN110294394A CN201910736708.6A CN201910736708A CN110294394A CN 110294394 A CN110294394 A CN 110294394A CN 201910736708 A CN201910736708 A CN 201910736708A CN 110294394 A CN110294394 A CN 110294394A
- Authority
- CN
- China
- Prior art keywords
- trolley
- push
- pull
- pawl
- pulling claw
- 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.)
- Pending
Links
- 210000000078 Claw Anatomy 0.000 claims abstract description 48
- 210000001847 Jaw Anatomy 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 6
- 210000004279 Orbit Anatomy 0.000 claims description 4
- 238000004642 transportation engineering Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000009924 canning Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000001744 Salsola kali Species 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002965 rope Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/14—Applications of loading and unloading equipment
- B66B17/16—Applications of loading and unloading equipment for loading and unloading mining-hoist cars or cages
- B66B17/20—Applications of loading and unloading equipment for loading and unloading mining-hoist cars or cages by moving vehicles into, or out of, the cars or cages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/14—Applications of loading and unloading equipment
- B66B17/28—Applications of loading and unloading equipment electrically controlled
Abstract
The present invention provides a kind of mine cars to pass in and out the plug-type behaviour's vehicle device of tank, including rear push-and-pull trolley, preceding push-and-pull trolley, connection trolley, transmission device, trolley travelling track, pulling claw play jaw arrangement and jaw arrangement of having pawled；Trolley, the connection trolley and the preceding push-and-pull trolley are pushed and pulled afterwards to be successively connected with each other, and are all moved back and forth along the trolley travelling track；Pulling claw plays jaw arrangement, jaw arrangement pair-wise combination of having pawled setting, positioned at the underface of preceding push-and-pull trolley and rear push-and-pull trolley initial position；It pushes and pulls pawl trolley and contains double tumblers push-and-pull pawls.Of the invention dexterous reliable, mechanism is simple, and low cost, construction maintenance are convenient；Double tumbler structures of pawl trolley are pushed and pulled, and pawls and is not contradicted mutually with pulling claw；It is applicable in and mine parking lot, loading depot, traffic tunnel, shunt in the rail vehicle transportation system of city underground engineering.
Description
Technical field
The invention belongs to pit gear technical fields, and be related to mine hoisting container pushes away winch pulling device into tank, and in particular to
A kind of mine car disengaging plug-type behaviour's vehicle device of tank.
Background technique
It is promoted in work in mine car, due to field condition diversification, there are many cages of single-ended disengaging vehicle.When cage handle
Mine car is promoted to behind a certain middle section or well head, needing to release in the mine car in the cage of single-ended disengaging vehicle to designated position, not shadow
After ringing with changing mine car propulsion cage, the mine car on middle section or well head stop line is sent into the cage of single-ended disengaging vehicle.Thus more
The mine car changed in cage is a very cumbersome job, does not only take up many manpowers using this work is accomplished manually, and
Working efficiency bottom directly affects mine capacity, labor productivity and safety in production.And for the mine car of large capacity,
It is almost impossible using manpower.Therefore the replacement work of mine car in cage is completed using electrically driven truck machine equipment in bracket
Make.
It is existing mostly fixed into tank electrically driven truck machine, it is only capable of positive into tank cart, progress loading-unloading vehicle.It is more in single cage
It is also at this moment lane out into lane, common car puller can only mostly all without designing annular parking lot in horizontal wellhead equipment
Cart cannot pull a cart, and not can be carried out and unload.There are also two section trolley of car puller equipment application, a section is pawled a section pulling claw, is pushed away
Pawl is respectively provided with lock claw device, and initial position is equipped with the jaw arrangement that rises and falls.But its structure is complex, operate with it is complex,
Pawl is pushed and pulled in actual use often to lift simultaneously, cannot normally push and pull vehicle.And push-and-pull pawl structure it is longer, simple ore vehicle cage not
It is able to achieve into tank cart.
Summary of the invention
For overcome the deficiencies in the prior art, it is simple to provide a kind of structure by the present invention, and dexterous, production capacity is high-efficient by force,
Securely and reliably, easy to operate, low cost, the good mine car of using effect passes in and out the plug-type behaviour's vehicle device of tank, which sets
The standby middle-size and small-size hoisting container of moldeed depth vertical small suitable for mine, can not only pull a cart into tank cart but also into tank.
To achieve the goals above, The technical solution adopted by the invention is as follows:
Mine car is into the plug-type behaviour's vehicle device of tank, including rear push-and-pull trolley 1, connection trolley 2, transmission device 3, preceding push-and-pull trolley 5, drawing
Pawl plays jaw arrangement 6, pawled jaw arrangement 7 and trolley travelling track 8；
Push-and-pull trolley 1, the connection trolley 2 and the preceding push-and-pull trolley 5 are successively connected with each other after described, and all along the trolley
Running track 8 moves back and forth, and trolley 1 is pushed and pulled after described far from cage one end, trolley 5 is pushed and pulled before described then close to cage one end；
The transmission device 3 is fixed on rail brace beam, and the push-and-pull trolley 1 backward and the preceding transmitting of push-and-pull trolley 5 push away
Draw the power of mine car；The top of the transmission device 3 is equipped with limited block 4, and the limited block 4 is fixed on trolley travelling track
On 8, with it is described it is preceding push-and-pull trolley 5 on 21 cooperating of postive stop baffle so that preceding push-and-pull trolley 5 no longer moves backward, it is ensured that
Accuracy in place afterwards,
The pulling claw plays jaw arrangement 6 and 7 pair-wise combination of the jaw arrangement setting of having pawled, and is fixed on the trolley travelling track 8
Lower section, equipped with two groups be located at it is described before push-and-pull trolley 5, it is described after push-and-pull 1 initial position of trolley bottom；Before described
After pushing and pulling trolley 5 and rear push-and-pull trolley 1 retrogressing in place, so that it may play jaw arrangement 6, the pawl dress of having pawled with the pulling claw
Trolley 5 and the rear push-and-pull state for pushing and pulling trolley 1 are pushed and pulled before setting 7 changes；
8 two sides of trolley travelling track are arranged in parallel with the automobile running orbit 9 for mine car disengaging tank, and extend to tank together
In cage,；
Push-and-pull trolley 5 includes that push-and-pull pawl car frame 10, push-and-pull pawl seat 11, tumbler pulling claw 12 and tumbler are pawled before described
15；Push-and-pull 10 both ends of pawl car frame are transversely provided with the pulley blocks 16 moved along the trolley travelling track 8；It is described to push away
The middle part that the push-and-pull pawl car frame 10 is arranged in by pushing and pulling 11 axis of pawl seat in pulling claw seat 11, and can be around push-and-pull pawl seat axis 14
It is rotated by 90 °；The tumbler pulling claw 12 is arranged in the push-and-pull pawl seat 11 by tumbler pulling claw axis 13, and can be around not
The pulling claw of falling father-in-law axis 13 is swung；The tumbler pawl 15 by tumbler pulling claw axis 17 be arranged in the push-and-pull pawl seat 11, and
Can pawl the swing of axis 17 around tumbler；Push-and-pull trolley 1 equally includes push-and-pull pawl car frame 10, push-and-pull pawl seat 11, does not fall afterwards
Father-in-law's pulling claw 12 and tumbler pawl 15.
Further, the mine car into the plug-type behaviour's vehicle device of tank further include intelligent electric-controlled device 19；It is described intelligent electric-controlled
Device 19 is located near parking lot, and 20 cooperating of feedback device at a distance from transmission device 3 reaches the push-and-pull truck position of variation
Afterwards, movement is performed the next step automatically.
Further, described to be located at 3 side of transmission device apart from feedback device 20.
Further, the intelligent electric-controlled device 19 is furnished with telecommunications functions, it can be achieved that long-range cloud control.
Further, the intelligent electric-controlled device 19 is furnished with rate control module, can change online speed according to live process
Degree.
Further, the mine car into the plug-type behaviour's vehicle device of tank further include power output device 18, the power output
Device 18 plays jaw arrangement 6 and acts power to 3 rotational power of transmission device and jaw arrangement 7 of having pawled, pulling claw.
Further, the mine car further includes remote control device into the plug-type behaviour's vehicle device of tank, realizes and is closely remotely controlled.
The utility model has the advantages that the present invention is applicable in and mine parking lot, loading depot, traffic tunnel, the rail vehicle of city underground engineering
Shunt in transportation system, pushes and pulls double tumbler structures of pawl trolley, and pawls and do not contradict mutually with pulling claw, dexterous reliable,
Mechanism is simple, and low cost, construction maintenance are convenient.
It has the advantages that
1) do not have to make the special jaw arrangement that rises inside cage, easy for installation, it is convenient to repair；
2) section push-and-pull pawl trolley can cart again pull a cart, push and pull pawl can arbitrarily switch, it is easy to operate；
3) double tumbler structures of pawl trolley are pushed and pulled, push-and-pull pawl trolley reversely encounters mine car axis, can lift automatically, not receive mine car
The working condition for influencing push-and-pull pawl, and pawls and does not contradict mutually with pulling claw, is not limited by cage length is small, dexterous reliable；
4) push-and-pull pawl trolley can be walked in mine car bottom, can be spaced the mine car for not needing push-and-pull, save site space；
5) roly-poly type push-and-pull pawl is pulled a cart automatically after reaching designated position, does not need personnel's dislodging hook.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the sectional schematic diagram at present invention push-and-pull pawl trolley.
Fig. 3 is the structural schematic diagram of push-and-pull trolley before the present invention.
Fig. 4 is of the invention into tank state diagram.
Fig. 5 is tank state diagram out of the invention.
In figure: pushing and pulling trolley after 1-, 2- connection trolley, 3- transmission device, 4- limited block pushes and pulls trolley before 5-, and 6- is drawn
Pawl plays jaw arrangement, and 7- has pawled jaw arrangement, 8- trolley travelling track, 9- automobile running orbit, 10- push-and-pull pawl car frame, 11-
Push-and-pull pawl seat, 12- tumbler pulling claw, 13- tumbler pulling claw axis, 14- push and pull pawl seat axis, and 15- tumbler is pawled, 16- pulley blocks,
17- tumbler is pawled axis, and 18- power output device, the intelligent electric-controlled device of 19-, 20- is apart from feedback device, 21- postive stop baffle.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
Mine car is into the plug-type behaviour's vehicle device of tank, as shown in Figure 1, Figure 2 and Figure 3, including rear push-and-pull trolley 1, connection trolley 2,
Transmission device 3, preceding push-and-pull trolley 5, pulling claw play jaw arrangement 6, pawled jaw arrangement 7 and trolley travelling track 8；It further include that power is defeated
Device 18 out, intelligent electric-controlled device 19；It pushes and pulls trolley 1, connection trolley 2 and preceding push-and-pull trolley 5 afterwards to be successively connected with each other, and all edges
Trolley travelling track 8 moves back and forth, and the rear trolley 1 that pushes and pulls is far from cage one end, and preceding push-and-pull trolley 5 is then close to cage one end；
Transmission device 3 is fixed on rail brace beam, pushes and pulls the power of trolley 1 and preceding push-and-pull trolley 5 transmitting push-and-pull mine car backward；
The top of transmission device 3 is equipped with limited block 4, which is fixed in trolley travelling track 8, on preceding push-and-pull trolley 5
21 cooperating of postive stop baffle so that preceding push-and-pull trolley 5 no longer moves backward, it is ensured that after accuracy in place,
Pulling claw plays jaw arrangement 6,7 pair-wise combination of jaw arrangement of having pawled setting, is fixed on the lower section of trolley travelling track 8, is equipped with two
The bottom of push-and-pull trolley 5, rear push-and-pull 1 initial position of trolley before group is located at；After current push-and-pull trolley 5 and rear push-and-pull trolley 1
After falling back on position, so that it may play jaw arrangement 6 with pulling claw, jaw arrangement 7 of having pawled changes preceding push-and-pull trolley 5 and push and pull pushing away for trolley 1 afterwards
Tension state；
8 two sides of trolley travelling track are arranged in parallel with the automobile running orbit 9 for mine car disengaging tank, and extend to cage together
It is interior,；
Wherein, as shown in figure 3, preceding push-and-pull trolley 5 includes push-and-pull pawl car frame 10, push-and-pull pawl seat 11,12 and of tumbler pulling claw
Tumbler pawls 15；Push-and-pull 10 both ends of pawl car frame are transversely provided with the pulley blocks 16 moved along trolley travelling track 8；Push-and-pull
The middle part that push-and-pull pawl car frame 10 is arranged in by pushing and pulling pawl seat axis 14 in pawl seat 11, and can be around push-and-pull pawl seat axis 14 rotation 90
Degree；Tumbler pulling claw 12 is arranged in push-and-pull pawl seat 11 by tumbler pulling claw axis 13, and can put around tumbler pulling claw axis 13
It is dynamic；Tumbler pawl 15 by tumbler pulling claw axis 17 setting push-and-pull pawl seat 11 on, and can around tumbler pawl axis 17 pendulum
It is dynamic；Push-and-pull trolley 1 equally includes that push-and-pull pawl car frame 10, push-and-pull pawl seat 11, tumbler pulling claw 12 and tumbler pawl 15 afterwards,
Structure distribution is consistent；In this way, when mine car reverses through when, mine car bottom can encounter tumbler pulling claw 12 or tumbler is pawled 15,
Tumbler pulling claw 12 or tumbler pawl and 15 can automatically reset and do not change, and tumbler pulling claw 12 or tumbler are pawled 15 original shapes
State；Tumbler pulling claw 12 or tumbler pawl 15 state switching, pulling claw rise jaw arrangement 6 or 7 oil cylinder of jaw arrangement of having pawled it is outside
It stretches out, push-and-pull pawl seat 11 is driven to be rotated by 90 ° around push-and-pull pawl seat axis 14, realize that tumbler pulling claw 12 or tumbler are pawled 15 switchings.
Specifically, intelligent electric-controlled device 19 20 cooperating of feedback device at a distance from transmission device 3, reaches variation
Push-and-pull truck position after, perform the next step movement automatically.
Specifically, intelligent electric-controlled device 19 is furnished with telecommunications functions, it can be achieved that long-range cloud control.
Specifically, intelligent electric-controlled device 19 is furnished with rate control module, it can be according to the online pace of change of live process.
Specifically, mine car further includes remote control device into the plug-type behaviour's vehicle device of tank, realizes and be closely remotely controlled.
As shown in figure 4, slack tank cage, at this horizontal mid-section position, into canning cart, preceding push-and-pull trolley 5, rear push-and-pull trolley 1 divide
Not in initial position, starts jaw arrangement 7 of having pawled and play pawl cylinder efficient, preceding push-and-pull trolley 5, rear push-and-pull 1 tumbler of trolley are pawled
15 arrive working condition by top, and cart, rotation motor rotate forward starting transmission device 3 forward, push-and-pull trolley 5, connection before driving
Trolley 2, rear push-and-pull trolley 1 are moved forward along trolley travelling track 8 together, the tumbler of preceding push-and-pull trolley 5, rear push-and-pull trolley 1
Pawl 15 push away mine axle driven mine car push-in cage inside designated position；The retrogressing of transmission device 3 is opened, rotation motor reversely turns
It is dynamic, trolley 1, connection trolley 2, preceding push-and-pull trolley 5 are pushed and pulled after drive to be moved backward along trolley travelling track 8, preceding 5 vehicle of push-and-pull trolley
Frame postive stop baffle 21 falls back on 4 position of limited block, and the stopping of transmission device 3 rotates backward, preceding push-and-pull trolley 5, connect trolley 2, after
It pushes and pulls trolley 1 and reaches initial position, finished into canning cart；
As shown in figure 5, unloading at this horizontal position into tank with mine car cage, preceding push-and-pull trolley 5, rear push-and-pull trolley 1 exist respectively
Initial position, starting pulling claw play jaw arrangement 6 and play pawl cylinder efficient, preceding push-and-pull trolley 5, rear push-and-pull 1 tumbler pulling claw of trolley, 12 quilt
Working condition is pushed up, the cart forward of transmission device 3 is opened, rotation motor rotates forward, push-and-pull trolley 5, rear push-and-pull before driving
Trolley 1, connection trolley 2 are moved forward along trolley travelling track 8 together, and preceding push-and-pull trolley 5 reaches mine car bottom position in cage,
Halt, starting transmission device 3 retreats, and rotation motor rotates backward, push-and-pull trolley 5 before driving, rear push-and-pull trolley 1,
Connection trolley 2 is moved backward along trolley travelling track 8, while being pushed and pulled 5 tumbler pulling claw 12 of pawl trolley and being drawn mine in mine car axis cage
Vehicle moves backward, and preceding 5 vehicle frame postive stop baffle 21 of push-and-pull trolley falls back on 4 position of limited block, and the stopping of transmission device 3 rotates backward,
Preceding push-and-pull trolley 5, rear push-and-pull trolley 1, connection trolley 2 reach initial position, and mine car has been drawn out in cage, has been unloaded into tank
Finish.
The above action process is all to have intelligent electric-controlled device 19 to control, and controls power output device 18 to 3 turns of transmission device
Dynamic power and jaw arrangement 7 of having pawled, pulling claw play jaw arrangement 6 and act power；Action process can be set according to field condition；May be used also
Network is connected, on-site signal is transferred to by cloud by network and realizes long-range monitoring.
The above content is combine optimal technical scheme that the specific reality, and it cannot be said that invention is described in detail to what the present invention was done
It applies and is only limitted to these, for the simple deduction and replacement made under the premise of not departing from inventive concept, such as set is used in various
(such as plate chain pin tooth pusher gear, rope type traction device, round-link chain traction device, rack rails traction dress above the allocation and transportation device of form
Set) it all should be considered as protection scope of the present invention.
Claims (7)
1. mine car passes in and out the plug-type behaviour's vehicle device of tank, including rear push-and-pull trolley (1), it is characterised in that: push and pull trolley before further including
(5), trolley (2), transmission device (3), trolley travelling track (8), pulling claw jaw arrangement (6) and jaw arrangement of having pawled (7) are connected；
Push-and-pull trolley (1), the connection trolley (2) and the preceding push-and-pull trolley (5) are successively connected with each other after described, and all along institute
It states trolley travelling track (8) to move back and forth, trolley (1) is pushed and pulled after described far from cage one end, trolley (5) is pushed and pulled before described and then leans on
Nearly cage one end；
The transmission device (3) is fixed on rail brace beam, described to push and pull trolley (1) and the preceding push-and-pull trolley (5) backward
The power of transmitting push-and-pull mine car；The top of the transmission device (3) is equipped with limited block (4), and the limited block (4) is fixed on
In trolley travelling track (8), with it is described it is preceding push-and-pull trolley (5) on postive stop baffle (21) cooperating so that preceding push-and-pull trolley
(5) no longer move backward, it is ensured that after accuracy in place；
The pulling claw plays jaw arrangement (6) and jaw arrangement of having pawled (7) pair-wise combination setting, is fixed on the trolley travelling rail
The lower section in road (8) is located at the bottom of preceding push-and-pull trolley (5), described rear push-and-pull trolley (1) initial position equipped with two groups
Portion；When the preceding push-and-pull trolley (5) and it is described after push-and-pull trolley (1) retreat in place after, so that it may with the pulling claw jaw arrangement
(6), the push-and-pull state of push-and-pull trolley (5) and rear push-and-pull trolley (1) before the jaw arrangement of having pawled (7) changes；
Trolley travelling track (8) two sides are arranged in parallel with the automobile running orbit (9) for mine car disengaging tank, and extend together
To cage；
Push-and-pull trolley (5) includes push-and-pull pawl car frame (10), push-and-pull pawl seat (11), tumbler pulling claw (12) and does not fall before described
Father-in-law pawls (15)；Described push-and-pull pawl car frame (10) both ends are transversely provided with the cunning mobile along the trolley travelling track (8)
Wheel group (16)；The push-and-pull pawl seat (11) is arranged in the push-and-pull pawl car frame (10) by push-and-pull pawl seat axis (14)
Portion, and can be rotated by 90 ° around push-and-pull pawl seat axis (14)；The tumbler pulling claw (12) is arranged by tumbler pulling claw axis (13)
On the push-and-pull pawl seat (11), and it can be swung around tumbler pulling claw axis (13)；The tumbler pawls (15) by not falling
Father-in-law's pulling claw axis (17) is arranged on the push-and-pull pawl seat (11), and axis (17) swing that can pawl around tumbler；After push and pull trolley
(1) same includes that push-and-pull pawl car frame (10), push-and-pull pawl seat (11), tumbler pulling claw (12) and tumbler pawl (15).
2. mine car according to claim 1 passes in and out the plug-type behaviour's vehicle device of tank, it is characterised in that: further include intelligent electric-controlled dress
It sets (19), the intelligent electric-controlled device (19) is located near parking lot, and feedback device (20) cooperates at a distance from transmission device (3)
It works, behind the push-and-pull truck position for reaching variation, performs the next step movement automatically.
3. mine car according to claim 2 passes in and out the plug-type behaviour's vehicle device of tank, it is characterised in that: described apart from feedback device
(20) it is located at transmission device (3) side.
4. mine car according to claim 2 passes in and out the plug-type behaviour's vehicle device of tank, it is characterised in that: the intelligent electric-controlled device
(19) it are furnished with telecommunications functions, it can be achieved that long-range cloud control.
5. mine car according to claim 2 passes in and out the plug-type behaviour's vehicle device of tank, it is characterised in that: the intelligent electric-controlled device
(19) it is furnished with rate control module, it can be according to the online pace of change of live process.
6. mine car according to claim 1 passes in and out the plug-type behaviour's vehicle device of tank, it is characterised in that: further include power output dress
It sets (18), the power output device (18) plays pawl dress to transmission device (3) rotational power and jaw arrangement of having pawled (7), pulling claw
Set (6) movement power.
7. mine car according to claim 1 passes in and out the plug-type behaviour's vehicle device of tank, it is characterised in that: it further include remote control device,
It realizes and is closely remotely controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910736708.6A CN110294394A (en) | 2019-08-10 | 2019-08-10 | Mine car passes in and out the plug-type behaviour's vehicle device of tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910736708.6A CN110294394A (en) | 2019-08-10 | 2019-08-10 | Mine car passes in and out the plug-type behaviour's vehicle device of tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110294394A true CN110294394A (en) | 2019-10-01 |
Family
ID=68032912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910736708.6A Pending CN110294394A (en) | 2019-08-10 | 2019-08-10 | Mine car passes in and out the plug-type behaviour's vehicle device of tank |
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| CN (1) | CN110294394A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113023536A (en) * | 2021-03-02 | 2021-06-25 | 辽宁工程技术大学 | Pressing lifting type mine car push-pull device and using method thereof |
-
2019
- 2019-08-10 CN CN201910736708.6A patent/CN110294394A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113023536A (en) * | 2021-03-02 | 2021-06-25 | 辽宁工程技术大学 | Pressing lifting type mine car push-pull device and using method thereof |
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