CN112279170A - Quick-release connecting device for jack of medium-speed roller type coal mill and implementation method - Google Patents
Quick-release connecting device for jack of medium-speed roller type coal mill and implementation method Download PDFInfo
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- CN112279170A CN112279170A CN202011156283.0A CN202011156283A CN112279170A CN 112279170 A CN112279170 A CN 112279170A CN 202011156283 A CN202011156283 A CN 202011156283A CN 112279170 A CN112279170 A CN 112279170A
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- 239000003245 coal Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000005728 strengthening Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 6
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F13/00—Common constructional features or accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a quick-release connecting device for a jack of a medium-speed roller type coal mill and an implementation method, and relates to the field of coal mills. This a rotary tool for dismouting of medium speed roll-type coal pulverizer grinding roller device includes L type mounting panel and jack, L type mounting panel comprises vertical board and horizontal plate, vertical board fixed connection is on the base of coal pulverizer, the top fixedly connected with quick detach mounting base of horizontal plate, the draw-in groove has been seted up in the front of quick detach mounting base, square through hole has been seted up to the both sides of quick detach mounting base, the bottom fixedly connected with cardboard of jack, the card hole has been seted up at the top of cardboard, cardboard activity joint is in the front draw-in groove of quick detach mounting base, square through hole internalization is pegged graft and is had square lockpin strip. This a rotary tool for dismouting of medium speed roller-type coal pulverizer grinding roller device is convenient for install the jack on L type mounting panel, and installation and fixed easy operation are convenient, labour saving and time saving, and are effectual with fixed to the installation of jack.
Description
Technical Field
The invention relates to the technical field of coal mills, in particular to a quick-release connecting device for a jack of a medium-speed roller type coal mill and an implementation method.
Background
Through retrieval, the Chinese patent with the application number of CN201420069265.2 discloses a rotating tool for dismounting a grinding roller device of a medium-speed roller type coal mill, wherein an access door is arranged on a shell of the coal mill, and a main shaft capable of rotating is arranged on one side of the access door; the main shaft is fixed on a shell of the coal mill through two bearing seats; the main shaft is fixedly connected with the grinding roller device through the bracket and the tensioning device, and the grinding roller device is turned to the outside of the coal mill in the rotating process of the main shaft when external force is applied to the grinding roller device. The rotary tool has the characteristics of flexible operation, small occupied space, reduction of labor intensity of workers, shortening of maintenance period and reduction of maintenance cost.
The aforesaid patent has following not enoughly, and in the device, the jack is the snap-on the base of coal pulverizer, and grinding roller device installs on the main shaft of jack top, and this has just led to when the user carries out grinding roller device's dismouting, still has some inconvenient places, and here the jack is fixed, also is not convenient for carry out corresponding dismouting and maintenance to it, and to the not enough of prior art, we design a rotary tool that is used for medium speed roller mill grinding roller device dismouting, solves above-mentioned problem.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention discloses a quick-release connecting device for a jack of a medium-speed roller coal mill and an implementation method thereof, and aims to solve the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a rotary tool for dismounting a grinding roller device of a medium-speed roller type coal mill comprises an L-shaped support plate and a jack, wherein the L-shaped support plate consists of a vertical plate and a horizontal plate, the vertical plate is fixedly connected to a base of the coal mill, the top of the horizontal plate is fixedly connected with a quick-release mounting base, the front surface of the quick-release mounting base is provided with a clamping groove, two sides of the quick-release mounting base are provided with square through holes, the bottom of the jack is fixedly connected with a clamping plate, the top of the clamping plate is provided with a clamping hole, the clamping plate is movably clamped in the clamping groove in the front surface of the quick-release mounting base, a square lock pin strip is movably inserted in the square through hole, the top of the square lock pin strip is provided with a locking hole, the square lock pin strip is fixedly connected with a limiting block, when the clamping plate is movably clamped in the clamping, the back and both sides of cardboard and quick detach mounting base's draw-in groove inner wall counterbalance, and the front of cardboard offsets with two sets of square lockpin strips, and the stopper offsets with quick detach mounting base's lateral wall, quick detach mounting base's top is equipped with the locking mechanism corresponding with square lockpin strip.
Preferably, a reinforcing rib is fixedly connected between the vertical plate and the horizontal plate of the L-shaped support plate, and the cross section of the reinforcing rib is triangular.
Preferably, the top of the quick-release mounting base is provided with a threaded hole, the axis of the threaded hole is in threaded connection with a mounting base fixing bolt, and the bottom of the mounting base fixing bolt penetrates through the threaded hole and is movably inserted into the clamping hole.
Preferably, locking mechanism includes the spring mounting shell, spring mounting shell fixed connection is at the top of quick detach mounting base, the inside of spring mounting shell is equipped with the inner chamber, sliding connection has the spring base in the inner chamber of spring mounting shell.
Preferably, the bottom of the spring base is fixedly connected with a locking rod, the bottom of the locking rod penetrates through the spring mounting shell and the quick-release mounting base to extend downwards and is movably inserted into the locking hole, and circular through holes corresponding to the locking rod are formed in the spring mounting shell and the quick-release mounting base.
Preferably, the top of the spring base is fixedly connected with a handle rod, the top of the handle rod penetrates through the spring mounting shell to extend upwards and is fixedly connected with a pulling handle, the radial width of the pulling handle is greater than that of the handle rod, and the top of the spring mounting shell is provided with a round hole corresponding to the handle rod.
Preferably, the handle rod is sleeved with a spring, the top of the spring is abutted to the inner wall of the spring mounting shell, the bottom of the spring is abutted to the spring base, and the spring is in a compressed state.
The invention discloses a method for realizing a quick-release connecting device of a jack of a medium-speed roller coal mill, which comprises the following steps of:
s1: directly aligning the clamping plate to the front clamping groove of the quick-release mounting base and clamping the clamping plate;
s2: the handle rod is pulled upwards, so that the handle rod drives the spring base to move upwards, the spring base drives the locking rod to move upwards and simultaneously extrudes the spring, and when the locking rod retracts into the inner cavity of the spring mounting shell, the square locking pin strip is aligned to the square through hole and inserted until the limiting block abuts against the side wall of the quick-release mounting base;
s3: the handle rod is loosened, so that the spring is stretched from a compressed state and pushes the spring base to move, the spring base further drives the locking rod to be inserted into the locking hole, the clamping plate is limited and clamped through the two groups of square locking pin strips, and the jack is installed and positioned;
s4: insert mounting base fixing bolt to threaded hole to screw up mounting base fixing bolt and make mounting base fixing bolt stretch into the cardboard downtheholely, realize further fixing the cardboard, guarantee the stable fixed to the cardboard.
The invention discloses a quick-release connecting device for a jack of a medium-speed roller type coal mill and an implementation method, and the quick-release connecting device has the following beneficial effects:
1. this be used for medium speed roller-type coal pulverizer jack quick detach connecting device and implementation method, through setting up L type mounting panel, the strengthening rib, quick detach mounting base, the lockpin strip, the jack, cardboard and locking mechanism, realized that the user is when carrying out the use, be convenient for install the jack on L type mounting panel, installation and fixed easy operation are convenient, time saving and labor saving, and it is good with fixed effectual to the installation of jack, the later stage is also convenient for pull down the maintenance and change the jack, can guarantee that the user is convenient for carry out the dismouting to coal pulverizer grinding roller device, satisfy user's demand.
2. This be used for middle speed roller-type coal pulverizer jack quick detach connecting device and implementation method, the strengthening rib through setting up can strengthen the fixed strength between the vertical board and the horizontal plate of L type mounting panel greatly, guarantee the stable support to the horizontal plate top, the bottom through the mounting base fixing bolt who sets up passes the screw hole and the activity is pegged graft in the jack, can realize carrying out secondary auxiliary fixation to jack and cardboard, the assurance is good to the fixed effectual of jack and cardboard, it is fixed stable, the realization carries out certain reinforcement to it, make the stability of device improve.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a structural view of a reinforcing bar according to the present invention;
FIG. 3 is a block diagram of the jack of the present invention;
FIG. 4 is a structural diagram of the quick release mounting base of the present invention.
In the figure: 1. an L-shaped bracket plate; 2. reinforcing ribs; 3. a quick-release mounting base; 301. a square through hole; 302. a threaded hole; 303. mounting a base fixing bolt; 4. a square locking pin strip; 401. a locking hole; 402. a limiting block; 5. a spring mounting housing; 6. a spring base; 601. a locking lever; 602. a handle bar; 7. a spring; 8. a jack; 9. clamping a plate; 901. and (6) clamping the hole.
Detailed Description
The embodiment of the invention provides a quick-release connecting device for a jack of a medium-speed roller coal mill and an implementation method thereof, as shown in figures 1-4, the quick-release connecting device comprises an L-shaped support plate 1 and a jack 8, wherein the L-shaped support plate 1 consists of a vertical plate and a horizontal plate, the vertical plate is fixedly connected to a base of the coal mill, the top of the horizontal plate is fixedly connected with a quick-release mounting base 3, the front surface of the quick-release mounting base 3 is provided with a clamping groove, two sides of the quick-release mounting base 3 are provided with square through holes 301, the bottom of the jack 8 is fixedly connected with a clamping plate 9, the top of the clamping plate 9 is provided with a clamping hole 901, the clamping plate 9 is movably clamped in the clamping groove on the front surface of the quick-release mounting base 3, a square locking pin strip 4 is movably inserted in the square through hole 301, the top of the square locking pin strip 4 is provided with a locking hole 401, a limiting block 402 is fixedly connected, cardboard 9's the back and both sides offset with quick detach mounting base 3's draw-in groove inner wall, cardboard 9's front offsets with two sets of square lockpin strip 4, stopper 402 offsets with quick detach mounting base 3's lateral wall, quick detach mounting base 3's top is equipped with the locking mechanism corresponding with square lockpin strip 4, through setting up L type mounting panel 1, strengthening rib 2, quick detach mounting base 3, square lockpin strip 4, jack 8, cardboard 9 and locking mechanism, it is when carrying out the use to have realized the user, be convenient for install jack 8 on L type mounting panel 1, installation and fixed easy operation are convenient, time saving and labor saving, and it is good with fixed effect to the installation of jack 8, also be convenient for pull down maintenance and change jack 8 in the later stage, can guarantee that the user is convenient for carry out the dismouting to coal pulverizer grinding roller device, satisfy user's demand.
Fixedly connected with strengthening rib 2 between L type mounting panel 1's vertical board and the horizontal plate, the cross sectional shape of strengthening rib 2 is triangle-shaped, can strengthen the fixed strength between L type mounting panel 1's vertical board and the horizontal plate greatly through the strengthening rib 2 that sets up, guarantees the stable support to the horizontal plate top.
Threaded hole 302 is seted up at quick detach mounting base 3's top, threaded hole 302's axle center department threaded connection has mounting base fixing bolt 303, mounting base fixing bolt 303's bottom is passed threaded hole 302 and the activity is pegged graft in calorie hole 901, the bottom through the mounting base fixing bolt 303 who sets up is passed threaded hole 302 and the activity is pegged graft in calorie hole 901, can realize carrying out secondary auxiliary fixation to jack 8 and cardboard 9, it is good to guarantee to the fixed effectual of jack 8 and cardboard 9, it is fixed stable, the realization carries out certain reinforcement to it, make the stability of device improve.
Locking mechanism includes spring mounting shell 5, and 5 fixed connection of spring mounting shell are at the top of quick detach mounting base 3, and the inside of spring mounting shell 5 is equipped with the inner chamber, and sliding connection has spring base 6 in the inner chamber of spring mounting shell 5, and locking mechanism's simple structure, the operation is stable, and is not fragile, when carrying out corresponding use, easy operation is convenient, labour saving and time saving.
When the inner chamber of locking lever 601 retraction spring mounting shell 5, can aim at square through hole 301 and insert square locking pin strip 4 this moment, it offsets with the lateral wall of quick detach mounting base 3 until stopper 402, can loosen hand handle pole 602 this moment, make spring 7 stretched and promote spring base 6 motion by compression state this moment, spring base 6 and then drive locking lever 601 and insert in locking hole 401, realize spacing and the chucking to cardboard 9 through two sets of square locking pin strips 4 that set up, realize the installation and the location to jack 8, also can insert mounting base fixing bolt 303 to screw hole 302 this moment, and screw up mounting base fixing bolt 303 and make mounting base fixing bolt 303 stretch into in the card hole 901, realize further fixing cardboard 9.
The bottom fixedly connected with locking lever 601 of spring base 6, the bottom of locking lever 601 passes spring mounting shell 5 and quick detach mounting base 3 downwardly extending and the activity is pegged graft in locking hole 401, spring mounting shell 5 and quick detach mounting base 3 are last all to have seted up the circular through-hole corresponding with locking lever 601, locking lever 601 is pegged graft and has just realized the location to square lockpin strip 4 in locking hole 401, square lockpin strip 4 can realize the chucking to cardboard 9.
The handle rod 602 is sleeved with the spring 7, the top of the spring 7 is abutted to the inner wall of the spring mounting shell 5, the bottom of the spring 7 is abutted to the spring base 6, the spring 7 is in a compression state, and the spring 7 is in the compression state, so that the reaction force of the spring 7 can push the spring base 6 to be attached to the inner wall of the inner cavity of the spring mounting shell 5, namely, the locking rod 601 can be stably inserted into the locking hole 401, thereby ensuring the fixing effect of the locking mechanism on the square locking pin strip 4, namely, ensuring the fixing effect on the jack 8.
The using method comprises the following steps: when a user uses the device, the jack 8 is conveniently installed on the L-shaped support plate 1, when the device is installed, the clamping plate 9 can be directly aligned with the front clamping groove of the quick-release mounting base 3 and clamped into the front clamping groove, then the handle rod 602 is pulled upwards, the handle rod 602 drives the spring base 6 to move upwards, the spring base 6 drives the locking rod 601 to move upwards and simultaneously extrude the spring 7, when the locking rod 601 retracts into the inner cavity of the spring mounting shell 5, the square locking bar 4 can be aligned with the square through hole 301 and inserted until the limiting block 402 abuts against the side wall of the quick-release mounting base 3, the handle rod 602 can be loosened, the spring 7 stretches from a compression state and pushes the spring base 6 to move, the spring base 6 further drives the locking rod 601 to be inserted into the locking hole 401, the limiting and clamping of the clamping plate 9 are realized through the two sets of square locking bar 4, and the installation and the positioning of the jack 8 are realized, also can insert mounting base fixing bolt 303 to screw hole 302 this moment to screw up mounting base fixing bolt 303 and make mounting base fixing bolt 303 stretch into card hole 901, realize further fixing cardboard 9, guarantee to the stable fixed of cardboard 9, when later stage need pull down jack 8, can vice versa with above-mentioned installation and fixed operation.
This device is through setting up L type mounting panel 1, strengthening rib 2, quick detach mounting base 3, square lockpin strip 4, jack 8, cardboard 9 and locking mechanism, realized the user when carrying out the use, be convenient for install jack 8 on L type mounting panel 1, installation and fixed easy operation are convenient, time saving and labor saving, and it is good with fixed effectual to the installation of jack 8, the later stage is also convenient for pull down maintenance and change jack 8, can guarantee that the user is convenient for carry out the dismouting to coal pulverizer grinding roller device, satisfy user's demand.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a be used for medium speed roller-type coal pulverizer jack quick detach connecting device, includes L type mounting panel (1) and jack (8), its characterized in that: the L-shaped support plate (1) is composed of a vertical plate and a horizontal plate, the vertical plate is fixedly connected to a base of the coal mill, the top of the horizontal plate is fixedly connected with a quick-release mounting base (3), a clamping groove is formed in the front face of the quick-release mounting base (3), square through holes (301) are formed in two sides of the quick-release mounting base (3), a clamping plate (9) is fixedly connected to the bottom of a jack (8), clamping holes (901) are formed in the top of the clamping plate (9), the clamping plate (9) is movably clamped in the clamping groove in the front face of the quick-release mounting base (3), square locking strips (4) are movably inserted in the square through holes (301), locking holes (401) are formed in the top of the square locking strips (4), limiting blocks (402) are fixedly connected to the square locking strips (4), and the square locking strips (4) are inserted in the clamping grooves (4) in the square through holes (3) when the clamping plate (9) is movably 301) During the process, the back and two sides of the clamping plate (9) are abutted against the inner wall of the clamping groove of the quick-release mounting base (3), the front face of the clamping plate (9) is abutted against the two groups of square locking pin strips (4), the limiting block (402) is abutted against the side wall of the quick-release mounting base (3), and the top of the quick-release mounting base (3) is provided with a locking mechanism corresponding to the square locking pin strips (4).
2. The quick-release connecting device for the jack of the medium speed roller mill according to claim 1, wherein: fixedly connected with strengthening rib (2) between the vertical board of L type mounting panel (1) and the horizontal plate, the cross-sectional shape of strengthening rib (2) is triangle-shaped.
3. The quick-release connecting device for the jack of the medium speed roller mill according to claim 1, wherein: the top of the quick-release mounting base (3) is provided with a threaded hole (302), the axis of the threaded hole (302) is in threaded connection with a mounting base fixing bolt (303), and the bottom of the mounting base fixing bolt (303) penetrates through the threaded hole (302) and is movably inserted into the clamping hole (901).
4. The quick-release connecting device for the jack of the medium speed roller mill according to claim 1, wherein: locking mechanism includes spring mounting shell (5), spring mounting shell (5) fixed connection is at the top of quick detach mounting base (3), the inside of spring mounting shell (5) is equipped with the inner chamber, sliding connection has spring base (6) in the inner chamber of spring mounting shell (5).
5. The quick-release connecting device for the jack of the medium speed roller mill according to claim 4, wherein: the bottom fixedly connected with check lock pole (601) of spring bracket (6), the bottom of check lock pole (601) passes spring mounting shell (5) and quick detach mounting base (3) downwardly extending and the activity is pegged graft in locking hole (401), all seted up the circular through-hole corresponding with check lock pole (601) on spring mounting shell (5) and quick detach mounting base (3).
6. The quick-release connecting device for the jack of the medium speed roller mill according to claim 5, wherein: the top fixedly connected with handle pole (602) of spring base (6), the top of handle pole (602) is passed spring mounting shell (5) and is upwards extended and fixedly connected with pulling handle, and the radial width of pulling handle is greater than the radial width of handle pole (602), the round hole corresponding with handle pole (602) has been seted up at the top of spring mounting shell (5).
7. The quick-release connecting device for the jack of the medium speed roller mill according to claim 6, wherein: the handle rod (602) is sleeved with a spring (7), the top of the spring (7) is abutted to the inner wall of the spring mounting shell (5), the bottom of the spring (7) is abutted to the spring base (6), and the spring (7) is in a compressed state.
8. The implementation method of the quick-release connecting device for the jack of the medium-speed roller type coal mill is characterized by comprising the following steps of:
s1: directly aligning the clamping plate (9) to a front clamping groove of the quick-release mounting base (3) and clamping the clamping plate;
s2: the handle rod (602) is pulled upwards, so that the handle rod (602) drives the spring base (6) to move upwards, the spring base (6) drives the locking rod (601) to move upwards and simultaneously extrudes the spring (7), and when the locking rod (601) retracts into the inner cavity of the spring mounting shell (5), the square locking pin strip (4) is aligned to the square through hole (301) and inserted until the limiting block (402) abuts against the side wall of the quick-release mounting base (3);
s3: the handle rod (602) is loosened, so that the spring (7) is stretched from a compressed state and pushes the spring base (6) to move, the spring base (6) further drives the locking rod (601) to be inserted into the locking hole (401), the limiting and clamping of the clamping plate (9) are realized through the two sets of square locking pin strips (4), and the installation and the positioning of the jack (8) are realized;
s4: insert mounting base fixing bolt (303) in screw hole (302) to screw up mounting base fixing bolt (303) and make mounting base fixing bolt (303) stretch into card hole (901) in, realize further fixing cardboard (9), guarantee the stable fixed to cardboard (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011156283.0A CN112279170A (en) | 2020-10-26 | 2020-10-26 | Quick-release connecting device for jack of medium-speed roller type coal mill and implementation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011156283.0A CN112279170A (en) | 2020-10-26 | 2020-10-26 | Quick-release connecting device for jack of medium-speed roller type coal mill and implementation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112279170A true CN112279170A (en) | 2021-01-29 |
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ID=74373146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011156283.0A Pending CN112279170A (en) | 2020-10-26 | 2020-10-26 | Quick-release connecting device for jack of medium-speed roller type coal mill and implementation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112279170A (en) |
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2020
- 2020-10-26 CN CN202011156283.0A patent/CN112279170A/en active Pending
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