LU102353B1 - Shaping Device for Mining Hydraulic Supports - Google Patents

Shaping Device for Mining Hydraulic Supports Download PDF

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Publication number
LU102353B1
LU102353B1 LU102353A LU102353A LU102353B1 LU 102353 B1 LU102353 B1 LU 102353B1 LU 102353 A LU102353 A LU 102353A LU 102353 A LU102353 A LU 102353A LU 102353 B1 LU102353 B1 LU 102353B1
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LU
Luxembourg
Prior art keywords
slider
shaping
column
linear driver
lifting assembly
Prior art date
Application number
LU102353A
Other languages
French (fr)
Inventor
Hao Hu
Ming Zhang
Anying Yuan
Lei Wang
Chuanqi Zhu
Zhenhua Jiao
Original Assignee
Univ Anhui Sci & Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application granted granted Critical
Publication of LU102353B1 publication Critical patent/LU102353B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/14Recontouring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/16Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts of specific articles made from metal rods, tubes, or profiles, e.g. crankshafts, by specially adapted methods or means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003Positioning devices
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

Disclosed is a shaping device for mining hydraulic supports, comprising two pairs of shaping mechanisms symmetrically arranged at intervals. The shaping mechanisms comprise a main column, an auxiliary column and at least one shaping unit; the shaping unit comprises a first lifting assembly, a second lifting assembly, a hydraulic cylinder and a shaping plate; the first lifting assembly comprises a first slider and a first linear driver for driving the first slider; the second lifting assembly comprises a second slider and a second linear driver for driving the second slider; an rear end of the hydraulic cylinder is fixed on the second slider; and a front end thereof movably penetrates through the first slider and is fixedly provided with the shaping plate. The present invention realizes the shaping and processing of a hydraulic support damaged under pressure, and has the features of enhancing automation, saving manpower and improving working efficiency, which effectively ensure that the hydraulic support can be moved into the cage and then lifted to the ground smoothly.

Description

Shaping Device for Mining Hydraulic Supports Field of the Invention The present invention relates to the technical field of mining machinery, in particular to a shaping device for mining hydraulic supports.
Background of the Invention Coal is one of the most dominant solid fuels as combustible organic rock, and can be divided into four categories, 1.e., peat, lignite, bituminous coal and anthracite, depending on the degree of coalification.
A coal mine 1s intended to represent a place rich in coal resources, and generally divided into a shaft mine and an open-pit mine.
The shaft mine involves digging tunnels underground for coal extraction when the coal seam is far away from the surface; and the open-pit mine involves directly stripping the topsoil for coal extraction when the coal seam edges close to the surface.
The coal mining methods are generally divided into wall mining and pillar mining in major coal-producing countries in the world.
Different coal mining systems and coal mining technologies are combined to form various coal mining methods according to different mine geology and technical conditions.
As the main equipment for comprehensive mechanized coal mining, hydraulic supports are mainly used to support and protect the roof of coal face.
Thus, the mine pressure can act on the hydraulic support in the form of external load, which effectively maintains the safe working space of the working face.
In recent years, although the working resistance of the hydraulic support has been improved, the abnormal pressure often occurs in the roof of the working face, which makes the hydraulic support unable to bear the load, resulting in the deformation of the hydraulic support under pressure and the damage of structural parts. In most cases, the deformed and damaged hydraulic supports are often super-wide and super-high, so that they cannot be moved into the cage and lifted to the ground smoothly, and are limited by the underground roadway space. Further, large-scale mechanical equipment cannot be used for centralized maintenance, and workers can only carry out manual maintenance by hammering, which increases the labor intensity of workers, reduces the work efficiency, and comes short of the expected shaping effect.
Summary of the Invention The technical problem to be solved by the present invention is to provide a shaping device for mining hydraulic supports, which is intended to improve the passage capacity of the roadway and effectively ensure that the hydraulic support can be moved into the cage and then lifted to the ground smoothly, thus reducing the labor intensity of workers.
In order to solve the above technical problems, the technical solutions used herein are as follows: a shaping device for mining hydraulic supports comprises two pairs of shaping mechanisms symmetrically arranged at intervals, wherein the shaping mechanisms comprise a main column, an auxiliary column and at least one shaping unit; the shaping unit comprises a first lifting assembly, a second lifting assembly, a hydraulic cylinder and a shaping plate; the first lifting assembly comprises a first slider slidably mounted on the auxiliary column and a first linear driver for driving the first slider to slide back and forth on the auxiliary column; the second lifting assembly comprises a second slider slidably mounted on the main column and a second linear driver for driving the second slider to slide back and forth on the main column; an rear end of the hydraulic cylinder is fixed on the second slider, and a front end thereof movably penetrates through the first slider and 1s fixedly provided with the shaping plate.
Further, the main column is of a double-headed H-shaped steel structure, the auxiliary column is composed of two H-shaped steels, the main column and the auxiliary column are integrated into a triangular structure through reinforcing beams fixedly installed at both sides thereof.
Further, the first slider comprises two mounting panels and two fastening plates, wherein the two mounting panels and the two fastening plates are connected to form a rectangular frame that is slidably sleeved on the auxiliary column.
Further, the two fastening plates are symmetrically clamped on the front and rear end faces of the auxiliary column, and the two mounting panels are symmetrically clamped on the left and right end faces of the auxiliary column, and both ends of the two mounting panels are fixedly connected to the two fastening plates by means of a first fastener.
Further, the second slider comprises a clamping panel and two U-shaped clamping blocks respectively fixed on the left and right ends of the clamping panel, and the two U-shaped clamping blocks are slidably clamped on the main column.
Further, strip-shaped sliding grooves are arranged on the left and right sides of the main column, the second slider further comprises two supporting rods respectively fixed on the two U-shaped clamping blocks, both ends of the two supporting rods are fixedly connected with the U-shaped clamping blocks through a second fastener, and the two supporting rods respectively slide through the corresponding strip-shaped sliding grooves.
Further, a first limiting groove and a second limiting groove are arranged in the middle of the main column and the auxiliary column respectively, the first linear driver and the second linear driver are fixedly installed at the bottom of the first slider and the second slider respectively, insulated wires are electrically connected with rear ends of the first linear driver and the second linear driver, the first slider and the first linear driver slide through the second limiting groove, the second slider and the second linear driver slide through the first limiting groove.
Further, the hydraulic cylinder comprises a cylinder barrel and a piston rod, retaining plates are arranged on both ends of the cylinder barrel and fixedly connected with the first slider or the second slider respectively through a plurality of annularly-distributed mounting posts on the end face thereof, and the piston rod movably penetrates through the first slider and is fixedly connected with the shaping plate.
Further, the front surface of the shaping plate is coated with a protective layer, and a cushion pad is arranged between the back surface of the shaping plate and the front end of the hydraulic cylinder.
Further, a bearing base is fixed at the bottom of the main column and the auxiliary column, an infrared sensor is installed at the front end of the bearing base, and the shaping device for mining hydraulic supports is used in conjunction with a track which is arranged between the bearing bases of the two pairs of shaping mechanisms.
The advantageous effects of the invention are as follows: In the present invention, on the one hand, two pairs of symmetrically spaced shaping mechanisms are arranged on both sides of the hydraulic support to be machined and shaped, which effectively reinforces the whole structure, improves the stability and safety, and enhances the shaping effect; on the other hand, the first linear driver and the second linear driver are electrically connected through an external electrical integrated control 5 device, thus driving the first lifting assembly and second lifting assembly to slide up and down vertically along the auxiliary column and the main column respectively, to achieve automatic lifting.
The shaping plate fixed on the front of the piston rod can be limited and clamped from bottom to up according to the transverse reciprocating movement of the hydraulic cylinder, so as to compress and shape the hydraulic support damaged under pressure on the mine car.
Multiple groups of shaping units can carry out the shaping operation at the same time, which improves the automation degree, saves manpower, increases work efficiency, and effectively ensures that the deformed and damaged hydraulic support can be moved into the cage and lifted to the ground smoothly.
Brief Description of the Drawings Fig. 1 is a side view of the overall structure according to an embodiment of the present invention.
Fig. 2 is a top view of the overall structure according to an embodiment of the present invention.
Fig. 3 is a top view of a column according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of the overall structure of a main column according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of the overall structure of an auxiliary column according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of the overall structure of a hydraulic cylinder according to an embodiment of the present invention. Fig. 7 1s a local perspective view of a first lifting assembly according to an embodiment of the present invention. Fig. 8 is a back view of a second lifting assembly according to an embodiment of the present invention. The marks of various components in the drawing are as follows: 1. main column; 101. strip-shaped sliding groove; 102, first limiting groove; 2. auxiliary column; 201. second limiting groove; 3. first lifting assembly;
301. first slider; 302. first linear driver; 303. mounting panel; 304. fastening plate; 305. first fastener; 4. second lifting assembly; 401. second slider; 402. second linear driver; 403. clamping panel; 404. U-shaped clamping block;
405. supporting rod; 406. second fastener; 5. insulated wires; 6. reinforcing beam; 7. hydraulic cylinder; 701. cylinder barrel; 702. piston rod; 703. retaining plate; 704, mounting post; 8. bearing base; 9. shaping plate; 901. cushion pad; 902. protective layer; 10. infrared sensor; 11. track. Detailed Description of the Preferred Embodiments The present invention will be described in detail with reference to the accompanying drawings. See Fig. 1- Fig. 8.
The present invention relates to a shaping device for mining hydraulic supports, comprising two pairs of shaping mechanisms symmetrically arranged at intervals, wherein the shaping mechanisms comprise a main column 1, an auxiliary column 2 and at least one shaping unit; the shaping unit comprises a first lifting assembly 3, a second lifting assembly 4, a hydraulic cylinder 7 and a shaping plate 9; the first lifting assembly 3 comprises a first slider 301 slidably mounted on the auxiliary column 2 and a first linear driver 302 for driving the first slider (301) to slide back and forth on the auxiliary column 2; the second lifting assembly 4 comprises a second slider 401 slidably mounted on the main column 1 and a second linear driver 402 for driving the second slider 401 to slide back and forth on the main column 1; an rear end of the hydraulic cylinder 7 1s fixed on the second slider 401, and a front end thereof movably penetrates through the first slider 301 and is fixedly provided with the shaping plate 9.
In the present invention, on the one hand, two pairs of symmetrically spaced shaping mechanisms are arranged on both sides of the hydraulic support to be machined and shaped, which effectively reinforces the whole structure, improves the stability and safety, and enhances the shaping effect; on the other hand, the first linear driver and the second linear driver are electrically connected through an external electrical integrated control device, thus driving the first lifting assembly and second lifting assembly to slide up and down vertically along the auxiliary column and the main column respectively, to achieve automatic lifting. The shaping plate fixed on the front of the piston rod can be limited and clamped from bottom to up according to the transverse reciprocating movement of the hydraulic cylinder, so as to compress and shape the hydraulic support damaged under pressure on the mine car. Multiple groups of shaping units can carry out the shaping operation at the same time, which improves the automation degree, saves manpower, increases work efficiency, and effectively ensures that the deformed and damaged hydraulic support can be moved into the cage and lifted to the ground smoothly.
In one embodiment, the main column 1 is a double-headed H-shaped steel structure, the auxiliary column 2 is composed of two H-shaped steels, the main column 1 and the auxiliary column 2 are integrated into a triangular structure through reinforcing beams 6 fixedly installed at both sides thereof. Such design helps to reinforce the overall structure of the device and provide a limiting protection for the grouped shaping units by the reinforced beams 6, thus preventing accidental collision, avoiding accidents and improving stability and safety.
In one embodiment, the first slider 301 comprises two mounting panels 303 and two fastening plates 304, wherein the two mounting panels 303 and the two fastening plates 304 are connected to form a rectangular frame that is slidably sleeved on the auxiliary column 2. Such design helps to improve the integrity of the overall structure of the first lifting assembly 3 and to ensure the first lifting assembly 3 smoothly slides up and down along the auxiliary column 2.
In one embodiment, the two fastening plates 304 are symmetrically clamped on the front and rear end faces of the auxiliary column 2, and the two mounting panels 303 are symmetrically clamped on the left and right end faces of the auxiliary column 2, and both ends of the two mounting panels 303 are fixedly connected to the two fastening plates 304 by means of a first fastener 305. Such design helps to improve the structural stability between the auxiliary column 2 and the first lifting assembly 3 and to drive the uniform movement of the first lifting assembly 3 by means of the first linear driver 302 electrically connected to an external electrical integrated control device.
In one embodiment, the second slider 401 comprises a clamping panel
403 and two U-shaped clamping blocks 404 respectively fixed on the left and right ends of the clamping panel 403, and both the U-shaped clamping blocks 404 are slidably clamped on the main column 1. Such design helps to improve the overall structural integrity of the second lifting assembly 4 and to ensure that the second lifting assembly 4 smoothly slides up and down along the main column 1.
In one embodiment, strip-shaped sliding grooves 101 are arranged on the left and right sides of the main column 1, the second slider 401 further comprises two supporting rods 405 respectively fixed on the two U-shaped clamping blocks 404, both ends of the two supporting rods 405 are fixedly connected with the U-shaped clamping blocks 404 through a second fastener 406, and the two supporting rods 405 respectively slide through the corresponding strip-shaped sliding grooves 101. Such design helps to improve the structural stability between the main column 1 and the second lifting assembly 4 and to drive the uniform movement of the second lifting assembly 4 by means of the second linear driver 402 electrically connected to an external electrical integrated control device.
In one embodiment, a first limiting groove 102 and a second limiting groove 201 are arranged in the middle of the main column 1 and the auxiliary column 2 respectively, the first linear driver 302 and the second linear driver 402 are fixedly installed at the bottom of the first slider 301 and the second slider 401 respectively, insulated wires 5 are electrically connected with rear ends of the first linear driver 302 and the second linear driver 402, the first slider 301 and the first linear driver 302 slide through the second limiting groove 201, the second slider 401 and the second linear driver 402 slide through the first limiting groove 102. Such design helps to facilitate the installation and disassembly of the first lifting assembly 3 and the second lifting assembly 4, and to play an effective limiting protection function, so that the grouped shaping units can be freely lifted within a fixed sliding range.
In one embodiment, the hydraulic cylinder 7 comprises a cylinder barrel 701 and a piston rod 702, retaining plates 703 are arranged on both ends of the cylinder barrel 701 and fixedly connected with the first slider 301 or the second slider 401 respectively through a plurality of annularly-distributed mounting posts 704 on the end face thereof, and the piston rod 702 movably penetrates through the first slider 301 and is fixedly connected with the shaping plate 9. Such design helps to improve the overall stability between the hydraulic cylinder 7, the first lifting assembly 3 and the second lifting assembly 4.
In one embodiment, the front surface of the shaping plate 9 is coated with a protective layer 902, and a cushion pad 901 is arranged between the back surface of the shaping plate 9 and the front end of the hydraulic cylinder 7. In this design, the protective layer 902 protects the stress surface of the shaping plate 9 by electroplating and prolongs its service life, and the cushion pad 901 realizes shock absorption of the shaping plate.
In one embodiment, a bearing base 8 1s fixed at the bottom of the main column 1 and the auxiliary column 2, an infrared sensor 10 is installed at the front end of the bearing base 8, and the shaping device for mining hydraulic supports is used in conjunction with a track 11 which is arranged between the bearing bases 8 of the two pairs of shaping mechanisms. Such design helps to increase bearing capacity and stability of the overall structure of the device by means of the bearing base 8. The infrared sensor
10 electrically connected to an external electrical integrated control device detects a condition in real time that a mine car is moving the damaged and deformed hydraulic support along the track 11 in the tunnel, and is about to reach the device, and automatically sends a digital signal to the electrical integrated control device and the motor for start-stop control provided in the mine car; in the same moment, the electrical integrated control device triggers the shaping unit to slide up and down along the main column 1 and the auxiliary column 2, and the mine car stops smoothly on the track 11; then the hydraulic cylinder 7 drives the shaping plate 9 to start the shaping process.
Upon the completion of shaping process, the shaping unit shrinks back to its initial state and the mine car starts and smoothly moves the shaped hydraulic support into the cage along the track 11. It should be understood that the examples and embodiments described herein are for illustration of the present invention only but not a limit thereto.
Those skilled in the art can make various modifications or changes to the present invention according to the examples and embodiments, and any modifications, equivalent substitutions, improvements made within the spirit and principle of the present invention should be incorporated in the scope of protection of the present invention.

Claims (10)

Claims
1. A shaping device for mining hydraulic supports, characterized by comprising two pairs of shaping mechanisms symmetrically arranged at intervals, wherein the shaping mechanisms comprise a main column (1), an auxiliary column (2) and at least one shaping unit; the shaping unit comprises a first lifting assembly (3), a second lifting assembly (4), a hydraulic cylinder (7) and a shaping plate (9); the first lifting assembly (3) comprises a first slider (301) slidably mounted on the auxiliary column (2) and a first linear driver (302) for driving the first slider (301) to slide back and forth on the auxiliary column (2); the second lifting assembly (4) comprises a second slider (401) slidably mounted on the main column (1) and a second linear driver (402) for driving the second slider (401) to slide back and forth on the main column (1); an rear end of the hydraulic cylinder (7) is fixed on the second slider (401), and a front end thereof movably penetrates through the first slider (301) and is fixedly provided with the shaping plate (9).
2. The shaping device for mining hydraulic supports according to claim 1, characterized in that the main column (1) is of a double-headed H-shaped steel structure, the auxiliary column (2) is composed of two H-shaped steels, the main column (1) and the auxiliary column (2) are integrated into a triangular structure through reinforcing beams (6) fixedly installed at both sides thereof.
3. The shaping device for mining hydraulic supports according to claim 1 or 2, characterized in that the first slider (301) comprises two mounting panels (303) and two fastening plates (304), wherein the two mounting panels (303) and the two fastening plates (304) are connected to form a rectangular frame that is slidably sleeved on the auxiliary column (2).
4. The shaping device for mining hydraulic supports according to claım 3, characterized ın that the two fastening plates (304) are symmetrically clamped on the front and rear end faces of the auxiliary column (2), and the two mounting panels (303) are symmetrically clamped on the left and right end faces of the auxiliary column (2), and both ends of the two mounting panels (303) are fixedly connected to the two fastening plates (304) by means of a first fastener (305).
5. The shaping device for mining hydraulic supports according to claım 1 or 2, characterized in that the second slider (401) comprises a clamping panel (403) and two U-shaped clamping blocks (404) respectively fixed on the left and right ends of the clamping panel (403), and the two U-shaped clamping blocks (404) are slidably clamped on the main column (1).
6. The shaping device for mining hydraulic supports according to claim 5, characterized in that strip-shaped sliding grooves (101) are arranged on the left and right sides of the main column (1), the second slider (401) further comprises two supporting rods (405) respectively fixed on the two U-shaped clamping blocks (404), both ends of the two supporting rods (405) are fixedly connected with the U-shaped clamping blocks (404) through a second fastener (406), and the two supporting rods (405) respectively slide through the corresponding strip-shaped sliding grooves (101).
7. The shaping device for mining hydraulic supports according to claim 1 or 2, characterized in that a first limiting groove (102) and a second limiting groove (201) are arranged in the middle of the main column (1) and the auxiliary column (2) respectively, the first linear driver (302) and the second linear driver (402) are fixedly installed at the bottom of the first slider (301) and the second slider (401) respectively, insulated wires (5) are electrically connected with rear ends of the first linear driver (302) and the second linear driver (402), the first slider (301) and the first linear driver (302) slide through the second limiting groove (201), the second slider (401) and the second linear driver (402) slide through the first limiting groove (102).
8. The shaping device for mining hydraulic supports according to claim 1 or 2, characterized in that the hydraulic cylinder (7) comprises a cylinder barrel (701) and a piston rod (702), retaining plates (703) are arranged on both ends of the cylinder barrel (701) and fixedly connected with the first slider (301) or the second slider (401) respectively through a plurality of annularly-distributed mounting posts (704) on the end face thereof, and the piston rod (702) movably penetrates through the first slider (301) and 1s fixedly connected with the shaping plate (9).
9. The shaping device for mining hydraulic supports according to claim 1 or 2, characterized in that the front surface of the shaping plate (9) 1s coated with a protective layer (902), and a cushion pad (901) is arranged between the back surface of the shaping plate (9) and the front end of the hydraulic cylinder (7).
10. The shaping device for mining hydraulic supports according to claim 1 or 2, characterized in that a bearing base (8) is fixed at the bottom of the main column (1) and the auxiliary column (2), an infrared sensor (10) is installed at the front end of the bearing base (8), and the shaping device oo LU102353 for mining hydraulic supports is used in conjunction with a track (11) which is arranged between the bearing bases (8) of the two pairs of shaping mechanisms.
LU102353A 2020-12-10 2020-12-30 Shaping Device for Mining Hydraulic Supports LU102353B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011468702.4A CN112718937A (en) 2020-12-10 2020-12-10 Mining hydraulic support shaping device

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LU102353B1 true LU102353B1 (en) 2021-08-04

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LU102353A LU102353B1 (en) 2020-12-10 2020-12-30 Shaping Device for Mining Hydraulic Supports

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LU (1) LU102353B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115069830B (en) * 2022-07-20 2022-11-22 常州汉科汽车科技有限公司 Intelligent shaping equipment and method for remanufacturing production of aluminum alloy vehicle door

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Effective date: 20210804