CN217421073U - Lifting sliding mechanism suitable for top anchor drilling frame of tunneling and anchoring combined unit - Google Patents
Lifting sliding mechanism suitable for top anchor drilling frame of tunneling and anchoring combined unit Download PDFInfo
- Publication number
- CN217421073U CN217421073U CN202122342337.9U CN202122342337U CN217421073U CN 217421073 U CN217421073 U CN 217421073U CN 202122342337 U CN202122342337 U CN 202122342337U CN 217421073 U CN217421073 U CN 217421073U
- Authority
- CN
- China
- Prior art keywords
- horizontal
- anchor drilling
- frame
- sliding
- plates
- 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
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model provides a lifting sliding mechanism suitable for a top anchor drill frame of an anchor digging combined unit, which comprises a top anchor drill frame and a top drill base which are arranged on the same side of the anchor digging frame, and also comprises at least two vertical lifting oil cylinders which can be lifted synchronously, wherein the fixed ends of the vertical lifting oil cylinders are hinged with the anchor digging frame, the rod ends of the pistons are hinged with the top drill base, and a horizontal sliding component is arranged on the seat body of the top drill base; the bottom of the top anchor drilling frame is fixedly connected with a horizontal sliding component, and the horizontal sliding component drives the top anchor drilling frame to horizontally slide on the top drill base along the horizontal direction. The horizontal sliding and the vertical lifting increase the working freedom degree of the top anchor drilling frame, wherein the realization of the horizontal sliding can obviously increase the anchoring protection range, and has larger anchoring protection advantages for special roadways which have poor roof conditions and need to be drilled vertically; the vertical lifting can lead the top drill mechanism to be grounded when in work, most of drilling force is transmitted to the ground, the stress of a rack structure and easily-damaged parts is greatly reduced, and the vertical lifting type top drill mechanism is compact in structure and suitable for machine types with smaller space.
Description
Technical Field
The utility model belongs to the coal mine machinery field, concretely relates to lift glide machanism suitable for top anchor drilling cramp of combination unit that digs and anchors.
Background
At present, the degree of freedom of the top anchor drilling protection frame of the tunneling and anchoring combined unit in the industry is single, and the top anchor drilling protection frame is mostly of two types: can only vertically lift or can only horizontally slide. Only vertical lifting severely limits the anchoring protection range of the top anchor drilling frame, and particularly has great limitation on top plate components and roadways requiring vertical anchoring drilling; the structure is too overstaffed due to horizontal sliding, the drilling force of the top drill frame is completely borne by the rack, the damage to the rack structure is too large, the structure at the joint of the drill frame base and the rack is very easy to damage, and the two structures restrict the tunneling efficiency of the tunneling and anchoring combined unit.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lift glide machanism suitable for anchor drilling rig is anchored to tunneling and anchoring combined unit top to overcome above-mentioned technical defect.
In order to solve the technical problem, the utility model provides a lifting slipping mechanism suitable for anchor drilling rig of anchor drilling unit, it includes anchor drilling rig and the top drill base of locating anchor drilling frame one side, wherein the top drill base is located the top anchor drilling rig under, still include at least two vertical lift cylinder that go up and down synchronously, the stiff end of vertical lift cylinder articulates in anchor drilling frame, the tailpiece of the piston rod of vertical lift cylinder articulates in the top drill base, install the horizontal sliding component at the pedestal of top drill base;
the bottom of the top anchor drilling frame is fixedly connected with a horizontal sliding component, and the horizontal sliding component drives the top anchor drilling frame to horizontally slide on the top drilling base along the horizontal direction.
Further, the horizontal sliding component comprises a horizontal sliding oil cylinder, a sliding block and a sliding rail which are sequentially arranged from top to bottom, wherein a cylinder barrel of the horizontal sliding oil cylinder is fixed on the upper surface of the sliding block, the sliding block is slidably arranged on the sliding rail and can slide along the sliding rail, and the sliding rail is fixedly laid on the top drill base;
two end parts of a piston rod of the horizontal sliding oil cylinder are fixed on the top drill base through lug plates;
the upper surface of the sliding block is also provided with a supporting plate which is fixedly connected with the top anchor drilling frame.
Preferably, the sliding block comprises a first rectangular flat plate horizontally placed right above the top drill base, two long edges of the first rectangular flat plate vertically extend downwards to form two second vertical plates parallel to each other, two long edges below the second vertical plates horizontally extend to form two third horizontal plates, and the two third horizontal plates are located between the two second vertical plates and are not in contact with each other;
the slide rail is a T-shaped structure with a T-shaped longitudinal section, which is formed by splicing or integrally forming an upper horizontal rectangular plate and a lower horizontal rectangular plate, wherein the upper horizontal rectangular plate is embedded into a cavity formed by the lower surface of a first rectangular flat plate, two second vertical plates and two third horizontal plates, the lower horizontal rectangular plate is clamped between the two third horizontal plates, and the lower surface of the lower horizontal rectangular plate is fixed on the top drill base;
the sliding block is driven to move along the sliding rail by the horizontal sliding oil cylinder.
Furthermore, two parallel supporting plates are arranged on the upper surface of the sliding block, each supporting plate is perpendicular to the first rectangular flat plate, and the surface of each supporting plate is provided with a plurality of windows;
the two supporting plates are symmetrically arranged about the horizontal sliding oil cylinder.
Furthermore, the bottom of the top anchor drilling frame is fixedly connected with the top end surfaces of the two supporting plates, the horizontal sliding oil cylinder is arranged in a space formed by the bottom of the top anchor drilling frame, the two supporting plates and the first rectangular flat plate, and the horizontal sliding oil cylinder is not in contact with the top anchor drilling frame.
Furthermore, two parallel grooves are formed in the upper surface of the upper horizontal rectangular plate, a wear-resistant strip is fixedly embedded in each groove, the upper surface of each wear-resistant strip contacts with the lower surface of the first rectangular flat plate, and the lower surface of the first rectangular flat plate does not contact with the upper surface of the upper horizontal rectangular plate.
Preferably, the two vertical lift cylinders are symmetrically disposed about a centerline of the top drill base.
The utility model has the advantages as follows:
the utility model increases the working freedom of the top anchor drill frame by realizing the horizontal sliding and the vertical lifting of the top anchor drill frame, wherein, the realization of the horizontal sliding can obviously enlarge the anchoring protection range, and has larger anchoring protection advantages for the special tunnel which has poor roof condition and needs to be drilled vertically; realize vertical lift and can make the top drill mechanism at the during operation ground connection, will beat the most transmission of drilling force to ground, reduce the atress of rack construction and vulnerable part by a wide margin, protect rack construction and vulnerable part, and compact structure, the less model in adaptable space.
In order to make the above and other objects of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is an isometric view of a lift glide mechanism suitable for use with a top anchor drilling rig of a tunneling and anchoring combination.
Fig. 2 is a side view of a lifting glide mechanism suitable for use with a top anchor drilling rig of a tunneling and anchoring combined machine.
Fig. 3 is a schematic structural view of a horizontal glide member.
FIG. 4 is a side view of the horizontal glide member.
Description of the reference numerals:
1. an anchor digging frame; 2. a top anchor drill rig; 3. a top drill base; 4. a vertical lift cylinder; 5. a horizontal glide member;
501. a horizontal sliding oil cylinder; 502. a slider; 503. a slide rail; 504. an upper horizontal rectangular plate; 505. a support plate; 506. a first rectangular plate; 507. a second vertical plate; 508. a third horizontal plate; 509. a lower horizontal rectangular plate; 510. a window; 511. wear resistant strips.
Detailed Description
The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.
It should be noted that, in the present invention, the upper, lower, left and right in the drawings are regarded as the upper, lower, left and right of the lifting sliding mechanism suitable for the top anchor drilling frame of the tunneling and anchoring combined unit described in the present specification.
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, which, however, may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings are not intended to limit the present invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
The embodiment relates to a lifting sliding mechanism suitable for a top anchor drill frame of a tunneling and anchoring combined unit, which comprises a top anchor drill frame 2 and a top drill base 3 which are arranged on the same side of a tunneling and anchoring rack 1, wherein the top drill base 3 is positioned under the top anchor drill frame 2, the lifting sliding mechanism further comprises at least two vertical lifting oil cylinders 4 which are synchronously lifted, the fixed ends of the vertical lifting oil cylinders 4 are hinged to the tunneling and anchoring rack 1, the piston rod ends of the vertical lifting oil cylinders 4 are hinged to the top drill base 3, and a horizontal sliding component 5 is arranged on a seat body of the top drill base 3.
The tunneling and anchoring rack 1 is a rack of a tunneling and anchoring combined unit, the tunneling and anchoring rack 1 is relatively immobile, synchronous extension and retraction of the two vertical lifting cylinders 4 can drive synchronous extension and retraction of the top drill base 3, the top anchor drill frame 2 and the top drill base 3 form a whole, and therefore when the top drill base 3 is extended and retracted, the top anchor drill frame 2 is also extended and retracted along with the top anchor drill frame, and vertical lifting of the top anchor drill frame 2 is further achieved.
The two vertical lifting oil cylinders 4 can realize synchronous lifting through synchronous valves.
If the stroke of the vertical lifting oil cylinder 4 is 290mm, the maximum ascending distance of the top drill base 3 can be 170mm away from the ground, the maximum descending distance can reach 120mm away from the ground, the adjustment amount of 120mm away from the ground is relatively friendly to the condition that the ground is soft, uneven or partially collapsed, and the stress of a rack structure and a wearing part is greatly reduced.
The bottom of the top anchor drilling frame 2 is fixedly connected with a horizontal sliding component 5, the horizontal sliding component 5 drives the top anchor drilling frame 2 to horizontally slide on the top drilling base 3 along the horizontal direction, the horizontal sliding is realized, the anchoring protection range can be obviously enlarged, and the anchor drilling device has great anchoring protection advantages for special roadways which have poor roof conditions and need to be drilled vertically.
It should be noted that the lifting and sliding mechanism can independently realize vertical lifting and horizontal sliding, and simultaneously realize vertical lifting and horizontal sliding, and the vertical lifting can be realized only by two vertical lifting cylinders 4, and the horizontal sliding member 5 is arranged in the space formed by the top anchor drilling frame 2 and the top drill base 3, so that the structure is compact, and the lifting and sliding mechanism is suitable for the machine type with smaller space.
Referring to fig. 3, the horizontal sliding member 5 includes a horizontal sliding cylinder 501, a sliding block 502 and a sliding rail 503, which are sequentially arranged from top to bottom, wherein a cylinder of the horizontal sliding cylinder 501 is fixed on an upper surface of the sliding block 502, the sliding block 502 is slidably mounted on the sliding rail 503 and can slide along the sliding rail 503, and the sliding rail 503 is fixedly laid on the top drill base 3.
The horizontal sliding cylinder 501 can be a cylinder with a stroke of 310mm, and can also be other stroke cylinders.
It should be noted that the piston rod of the horizontal sliding cylinder 501 is fixed, and the cylinder tube slides along the piston rod, so as to be shown in fig. 3, both ends of the piston rod of the horizontal sliding cylinder 501 are fixed to the top drill base 3 through the ear plates.
As shown in fig. 3, a support plate 505 is further disposed on the upper surface of the sliding block 502, the support plate 505 is fixedly connected to the top anchor drilling frame 2, the support plate 505 is used for bearing the weight of the top anchor drilling frame 2, and for uniform stress and balance during sliding, the two support plates 505 are symmetrically disposed about the horizontal sliding cylinder 501, wherein the shape of the support plate 505 is not limited, and may be rectangular in fig. 3, or may be in other forms or shapes.
The structure of the slider 502 may be various, but considering that the space is limited and the compact structure is to be realized, the preferred structure of the slider 502 in this embodiment is as follows:
referring to fig. 4, the sliding block 502 includes a first rectangular flat plate 506 horizontally placed right above the top drill base 3, two long sides of the first rectangular flat plate 506 vertically extend downward to form two second vertical plates 507 parallel to each other, two long sides below the second vertical plates 507 both horizontally extend to form two third horizontal plates 508, and the two third horizontal plates 508 are located between the two second vertical plates 507 and do not contact each other, that is, the sliding block 502 is an axisymmetric structure as seen from a longitudinal section, and the sliding block 502 may be integrally formed or may be formed by splicing.
The cylinder barrel of the horizontal sliding cylinder 501 is fixed on the upper surface of the first rectangular flat plate 506, but it is noted that the cylinder barrel is not directly contacted with the first rectangular flat plate 506, but is mounted on the first rectangular flat plate 506 through a support, and the design is to facilitate the disassembly, maintenance, repair and replacement of the horizontal sliding cylinder 501.
That is, the cylinder of the horizontal slide cylinder 501 and the slider 502 are integrated, and they are integrated and then synchronously slid.
As can be seen from fig. 4, the horizontal sliding cylinder 501 is arranged in the central position of the upper surface of the first rectangular plate 506, and the two support plates 505 are symmetrically arranged with respect to the horizontal sliding cylinder 501, on one hand, for uniformly bearing the force, and on the other hand, for ensuring the balance of the top anchor drilling frame 2 during the horizontal sliding.
The horizontal sliding principle of the lifting sliding mechanism is as follows:
when the horizontal sliding cylinder 501 is started, the cylinder of the horizontal sliding cylinder 501 moves leftwards or rightwards (in the direction shown in fig. 3) along the piston rod, and since the cylinder of the horizontal sliding cylinder 501 is fixed on the first rectangular flat plate 506 of the slide block 502, the slide block 502 slides along with the cylinder, and the slide block 502 moves along the slide rail 503.
It should be noted that, in the horizontal sliding process, the two third horizontal plates 508 do not contact the top drill base 3, that is, the two third horizontal plates 508 are suspended, so as to reduce friction force and realize smooth sliding.
As shown in fig. 4, the slide rail 503 is a T-shaped structure with a T-shaped longitudinal cross section, which is formed by splicing or integrally forming an upper horizontal rectangular plate 504 and a lower horizontal rectangular plate 509, wherein the upper horizontal rectangular plate 504 is embedded in a cavity formed by the lower surface of a first rectangular flat plate 506, two second vertical plates 507 and two third horizontal plates 508, the lower horizontal rectangular plate 509 is clamped between the two third horizontal plates 508, and the lower surface of the lower horizontal rectangular plate 509 is fixed to the top drill base 3.
The T-shaped structure of the sliding rail 503 and the undercut form of the sliding block 502 are combined with each other to form a compact structure, the space between the top anchor drilling frame 2 and the top drill base 3 is fully utilized, and the top anchor drilling machine is particularly suitable for machine types with small space.
Two parallel supporting plates 505 are arranged on the upper surface of the slider 502, each supporting plate 505 is perpendicular to the first rectangular flat plate 506, a plurality of windows 510 are formed in the surface of each supporting plate 505, the windows 510 can be evenly distributed on the supporting plates 505, the windows 510 are used for reducing weight and facilitating wiring of oil passages of the oil cylinder.
The bottom plate of the top anchor drilling rig 2 is fixedly connected to the top end surfaces of the two supporting plates 505, the horizontal sliding oil cylinder 501 is arranged in a box-shaped space formed by the bottom plate of the top anchor drilling rig 2, the two supporting plates 505 and the first rectangular flat plate 506, and the horizontal sliding oil cylinder 501 is not in contact with the top anchor drilling rig 2, so that heavy pressure damage to the oil cylinder is avoided.
The space formed by the bottom plate of the top anchor drilling rig 2, the two support plates 505 and the first rectangular flat plate 506 can also be called as a box-type structure, the box-type structure can still be drilled after the vertical lift cylinder is lifted, the anchoring height of the top anchor drilling rig can be greatly adjusted, and the whole machine is more consistent with the high anchoring height through the height.
Referring to fig. 4, two parallel grooves are formed in the upper surface of the upper horizontal rectangular plate 504, a wear-resistant strip 511 is fixedly embedded in each groove, the upper surface of the wear-resistant strip 511 contacts the lower surface of the first rectangular plate 506, and the lower surface of the first rectangular plate 506 does not contact the upper surface of the upper horizontal rectangular plate 504, specifically:
the sliding block 502 slides along the sliding rail 503, and slides along the wear strips 511, only the upper surfaces of the two wear strips 511 contact the lower surface of the first rectangular flat plate 506, so that friction can be reduced, and the wear strips 511 are easier to replace, thereby facilitating maintenance of the system.
In order to keep the top drill base 3 horizontal and not inclined after being lifted, the two vertical lift cylinders 4 are preferably symmetrically arranged about the center line of the top drill base 3 in the embodiment.
It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.
To sum up, the utility model discloses a lift glide machanism suitable for anchor drilling rig of anchor drilling combined unit has solved anchor drilling rig structure complicacy, often changes vulnerable part, and it is big to the frame damage, and the anchor scope is limited, advances the little scheduling problem of pole anchor scope perpendicularly.
Claims (7)
1. The utility model provides a lift glide machanism suitable for anchor drilling rig of anchor drilling combined set, it is including locating anchor drilling rig (2) and the top drill base (3) of anchor drilling frame (1) with one side, wherein top drill base (3) are located under anchor drilling rig (2), it still includes two at least vertical lift hydro-cylinder (4) of synchronous lift, the stiff end of vertical lift hydro-cylinder (4) articulates in anchor drilling frame (1), the tailpiece of the piston rod of vertical lift hydro-cylinder (4) articulates in top drill base (3), two vertical lift hydro-cylinder (4) synchronous telescope drive top drill base (3) synchronous telescope, its characterized in that:
the base body of the top drill base (3) is provided with a horizontal sliding component (5), the bottom of the top anchor drill frame (2) is fixedly connected with the horizontal sliding component (5), and the horizontal sliding component (5) drives the top anchor drill frame (2) to horizontally slide on the top drill base (3) along the horizontal direction.
2. The lifting slip mechanism suitable for the top anchor drilling frame of the tunneling and anchoring combined unit as claimed in claim 1, wherein: the horizontal sliding component (5) comprises a horizontal sliding oil cylinder (501), a sliding block (502) and a sliding rail (503) which are sequentially arranged from top to bottom, wherein a cylinder barrel of the horizontal sliding oil cylinder (501) is fixed on the upper surface of the sliding block (502), the sliding block (502) is slidably mounted on the sliding rail (503) and can slide along the sliding rail (503), and the sliding rail (503) is fixedly laid on the top drill base (3);
two end parts of a piston rod of the horizontal sliding oil cylinder (501) are fixed on the top drill base (3) through lug plates;
the upper surface of the sliding block (502) is also provided with a supporting plate (505), and the supporting plate (505) is fixedly connected with the top anchor drilling frame (2).
3. The lifting slip mechanism suitable for the top anchor drilling frame of the tunneling and anchoring combined unit as claimed in claim 2, wherein: the sliding block (502) comprises a first rectangular flat plate (506) horizontally placed right above the top drill base (3), two long edges of the first rectangular flat plate (506) vertically extend downwards to form two second vertical plates (507) which are parallel to each other, two long edges below the second vertical plates (507) horizontally extend to form two third horizontal plates (508), and the two third horizontal plates (508) are located between the two second vertical plates (507) and are not in contact with each other;
the slide rail (503) is a T-shaped structure with a T-shaped longitudinal section formed by splicing or integrally forming an upper horizontal rectangular plate (504) and a lower horizontal rectangular plate (509), wherein the upper horizontal rectangular plate (504) is embedded into a cavity formed by the lower surface of a first rectangular flat plate (506), two second vertical plates (507) and two third horizontal plates (508), the lower horizontal rectangular plate (509) is clamped between the two third horizontal plates (508), and the lower surface of the lower horizontal rectangular plate (509) is fixed on the top drill base (3);
the sliding block (502) is driven by the horizontal sliding oil cylinder (501) to move along the sliding rail (503).
4. The lifting slip mechanism suitable for the top anchor drilling frame of the tunneling and anchoring combined unit as claimed in claim 3, wherein: the upper surface of the sliding block (502) is provided with two parallel supporting plates (505), each supporting plate (505) is perpendicular to the first rectangular flat plate (506), and the surface of each supporting plate (505) is provided with a plurality of windows (510);
the two supporting plates (505) are symmetrically arranged about the horizontal sliding oil cylinder (501).
5. The lifting slip mechanism suitable for the top anchor drilling frame of the tunneling and anchoring combined unit as claimed in claim 4, wherein: the bottom of the top anchor drilling frame (2) is fixedly connected to the top end surfaces of the two supporting plates (505), the horizontal sliding oil cylinder (501) is arranged in a space formed by the bottom of the top anchor drilling frame (2), the two supporting plates (505) and the first rectangular flat plate (506), and the horizontal sliding oil cylinder (501) is not in contact with the top anchor drilling frame (2).
6. The lifting slip mechanism suitable for the top anchor drilling frame of the tunneling and anchoring combined unit as claimed in claim 3, wherein: the upper surface of the upper horizontal rectangular plate (504) is provided with two parallel grooves, a wear-resistant strip (511) is fixedly embedded in each groove, the upper surface of the wear-resistant strip (511) contacts the lower surface of the first rectangular flat plate (506), and the lower surface of the first rectangular flat plate (506) does not contact the upper surface of the upper horizontal rectangular plate (504).
7. The lifting sliding mechanism suitable for the top anchor drilling frame of the tunneling and anchoring combined unit as claimed in any one of claims 1 to 6, wherein: the two vertical lifting oil cylinders (4) are symmetrically arranged around the center line of the top drill base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122342337.9U CN217421073U (en) | 2021-09-18 | 2021-09-18 | Lifting sliding mechanism suitable for top anchor drilling frame of tunneling and anchoring combined unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122342337.9U CN217421073U (en) | 2021-09-18 | 2021-09-18 | Lifting sliding mechanism suitable for top anchor drilling frame of tunneling and anchoring combined unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217421073U true CN217421073U (en) | 2022-09-13 |
Family
ID=83168644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122342337.9U Active CN217421073U (en) | 2021-09-18 | 2021-09-18 | Lifting sliding mechanism suitable for top anchor drilling frame of tunneling and anchoring combined unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217421073U (en) |
-
2021
- 2021-09-18 CN CN202122342337.9U patent/CN217421073U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201221322Y (en) | Novel petroleum well drilling hoisting system and headframe | |
| CN114060077B (en) | Quick supporting device for coal mine tunnel fault | |
| RU2333344C1 (en) | Teleskopic feeding beam for drilling machine | |
| CN102128040A (en) | Hydraulic striding-type advanced-support equipment | |
| CN204455849U (en) | The accurate rackwork of installation of large-scale steel box-girder | |
| CN217421073U (en) | Lifting sliding mechanism suitable for top anchor drilling frame of tunneling and anchoring combined unit | |
| CN109372430A (en) | A kind of truck-mounted drilling rig and drilling rod | |
| CN115839214A (en) | Displacement control method for top anchor drilling frame of tunneling and anchoring combined unit | |
| CN109838244B (en) | Foldable large-area operation platform device | |
| CN202108806U (en) | Piston cylinder assembly | |
| CN202147997U (en) | Device for tensioning chain of scraper conveyor | |
| CN212582445U (en) | Novel three-dimensional walking type pushing equipment | |
| CN115262304A (en) | Auxiliary tool for replacing anchor rod of small-space track beam and anchor rod replacing method | |
| CN210483551U (en) | Hydraulic drilling machine base for petroleum drilling | |
| CN110029946B (en) | Installation method of vertical lifting derrick | |
| CN210858596U (en) | Mast telescopic assembly system of percussion coring drilling machine | |
| CN106628032B (en) | A kind of cantilever beam is mobile and locking device | |
| CN207905322U (en) | A kind of sandwich and scraping device struck off for wall surface peat | |
| CN221957598U (en) | Underground internal and external steel structure combined support | |
| CN111852522A (en) | Rock burst circular tunnel scour protection support device | |
| CN216894479U (en) | Gob entry circulation is from moving formula and is strutted support equipment | |
| CN111749712B (en) | Tunnel construction equipment | |
| CN219622729U (en) | End hydraulic support equipment for coal excavation | |
| CN218932904U (en) | Bridge deck leveling mechanism | |
| CN221118269U (en) | Bridge moves roof beam device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 037002 East Hebao Village, Xicun Township, Xinrong District, Datong City, Shanxi Province Patentee after: Weishi Heavy Industry Co.,Ltd. Address before: 030000 Economic Development Zone, Xinrong District, Datong City, Shanxi Province Patentee before: DATONG ZHONGKE WEISHI MINING TECHNOLOGY Co.,Ltd. |