CN202292021U - U-shaped steel support repairing and shaping machine for roadways - Google Patents
U-shaped steel support repairing and shaping machine for roadways Download PDFInfo
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- CN202292021U CN202292021U CN2011203772602U CN201120377260U CN202292021U CN 202292021 U CN202292021 U CN 202292021U CN 2011203772602 U CN2011203772602 U CN 2011203772602U CN 201120377260 U CN201120377260 U CN 201120377260U CN 202292021 U CN202292021 U CN 202292021U
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Abstract
The utility model relates to a U-shaped steel support repairing and shaping machine for roadways, which is characterized by comprising a heating area, a quenching area, a shaping area and a blanking area. The heating area is sequentially connected with the quenching area, the shaping area and the blanking area. The heating area comprises a steel charge machine, a charge roller way, a heating furnace and a discharge roller way. The quenching area comprises a first optoelectronic switch, a machine front roller way, a clamping device and a water spraying pipeline. The shaping area comprises a machine front roller way, a machine front clamping and conveying roller, a seven-roller shaping machine and a machine rear roller way. The blanking area comprises a transporting roller way, a second optoelectronic switch, a fixing baffle and a chain type steel moving machine. Compared with the prior art, the U-shaped steel support repairing and shaping machine for roadways has the advantages of being suitable for repairing a U-shaped steel support with low degree of damage, enabling the repaired U-shaped steel support to achieve performance not worse than that of a new product after heat treatment first and shaping of the shaping machine then, meeting the requirement for repeated utilization, resolving the problem of handling discarded U-shaped steel supports piled up like a mountain in a coal mine, being capable of saving cost for enterprises, and having popularization value.
Description
Technical field
The utility model relates to the U-shaped steel and repairs the field, relates in particular to a kind of tunnel and repairs trimmer with the U-shaped steel bracket.
Background technology
The U-shaped steel that uses in the present domestic roadway support is commonly hot-rolled state; Without the direct compression moulding of heat treatment; The U-shaped steel bracket intensity of hot-rolled state performance potential low, steel fails to bring into play; The U-shaped steel in use receives the effect of various load in the tunnel, makes the part support phenomenon of unstable failure occur, shows as: bending, fracture, the local pleat etc. that rises.
Accumulate over a long period, pile up like a mountain for the U-shaped steel bracket of distortion, and the Coal Production cost is very high.Wherein some support damaged condition is little, if can pass through some ways, eliminates its local defect, can reach reusable purpose.Domestic part colliery attempts adopting the mold pressing principle that the U-shaped steel bracket is carried out the moulding reparation; This method reparation precision is low; Efficient is low, receives the limitation of mold shape, also can make the U-shaped steel uncontrollable defective occur, and can't solve sectional dimension changes and produce critical section and stress and a difficult problem such as concentrate; U-shaped steel bracket after the reparation does not reach the new product standard, can not satisfy the recycling requirement.
Summary of the invention
The purpose of the utility model provides a kind of tunnel and repairs trimmer with the U-shaped steel bracket; Overcome the deficiency of prior art; The U-shaped steel bracket that damaged condition is little is earlier through Overheating Treatment; Repair through the trimmer shaping again, make the U-shaped steel bracket after the reparation reach the performance that is not less than new product, satisfy the requirement of recycling.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
Trimmer is repaired with the U-shaped steel bracket in the tunnel, comprises the thermal treatment zone, quench zone, shaping region and discharging area, and the thermal treatment zone is connected with quench zone, shaping region, discharging area successively;
The said thermal treatment zone comprises dress steel machine, goes into furnace roller road, heating furnace and furnace delivery table, goes into furnace roller road, heating furnace and furnace delivery table and links to each other successively, goes into the other dress steel machine that is provided with in furnace roller road;
Said quench zone comprises optoelectronic switch one, quenching roller-way, clamping device and water pipe; Optoelectronic switch one is arranged in pairs in the tapping side of quench zone; Clamping device is arranged between the quenching roller-way, and water pipe is respectively equipped with the nozzle more than three in U-shaped steel bracket both sides;
Said shaping region comprises roller-way behind pinch roll before the machine front roller-way, machine, seven roller trimmers and the machine, the machine front roller-way successively with machine before behind the pinch roll, seven roller trimmers, machine roller-way be connected;
Said discharging area comprises conveyor roller, optoelectronic switch two, fixed dam and chain type machine for moving steel, and the conveyor roller tail end is provided with fixed dam, and the chain type machine for moving steel is located at the conveyor roller side, and conveyor roller and chain type machine for moving steel junction are provided with optoelectronic switch two in pairs.
Said seven roller trimmers comprise trimmer base, outer arc roller seat, inner arc roller seat, outer arc roller, inner arc roller, U-shaped steel bracket, outer arc pinch roller and inner arc pinch roller, and the corresponding shaping camber line outside is provided with the outer arc roller seat on the trimmer base, the inboard is provided with the inner arc roller seat, four outer arc rollers of arc shooting on the outer arc roller seat; Four outer arc roller center line place segmental arcs are concentric with the shaping camber line; Adjacent outer arc roller angle is 20 °, three inner arc rollers of arc shooting on the inner arc roller seat, and three inner arc roller center line place segmental arcs are also concentric with the shaping camber line; Adjacent inner arc roller angle also is 20 °; Outer arc roller and inner arc roller are crisscross arranged, and the outer arc roller is provided with the outer arc pinch roller, and the inner arc roller is provided with the inner arc pinch roller; Slit and U-shaped steel bracket cross section profile are consistent between outer arc pinch roller and the inner arc pinch roller, and outer arc roller and inner arc roller top are equipped with hydraulic motor.
Said inner arc roller comprises inner arc pinch roller, wheel pressing shaft, upper pressure wheel cover, taper roll bearing, self-aligning bearing and lower pressure wheel cover; The inner arc pinch roller is located at the wheel pressing shaft stage casing; Be provided with taper roll bearing between wheel pressing shaft upper end and the upper pressure wheel cover; Be provided with self-aligning bearing between wheel pressing shaft lower end and the lower pressure wheel cover, the upper pressure wheel cover is connected with the inner arc roller seat respectively with the lower pressure wheel cover.
Said clamping device comprises slide support one, slide support two, fixed support one, fixed support two, hydraulic cylinder one, hydraulic cylinder two, slide one, slide two, outer arc top board and inner arc top board, and slide support one is separately positioned on quenching roller-way both sides with slide support two;
Slide support one is provided with slide one, and fixed support one is located at the outside of slide support one, and fixed support one is provided with hydraulic cylinder one, and the tailpiece of the piston rod of hydraulic cylinder one links to each other with slide one, and slide one is connected with the outer arc top board;
Slide support two is provided with slide two; Fixed support two is located at the outside of slide support two; Fixed support two is provided with hydraulic cylinder two, and the tailpiece of the piston rod of hydraulic cylinder two links to each other with slide two, and slide two is connected with the inner arc top board; The slit is consistent with U-shaped steel bracket cross section profile between outer arc top board and the inner arc top board, and outer arc top board and inner arc top board are no less than 5 pairs along the setting of U-shaped steel bracket total length.
Pinch roll comprises and pinches seat one, pinches seat two, pinches hydraulic cylinder, pinch roll support one, pinch roll driven shaft, pinches driven pulley, pinch roll support two, pinch roll driving shaft and pinch driving wheel before the said machine; Pinch seat one and pinch seat two and radially be arranged on U-shaped steel bracket both sides respectively; Pinch the feed side that seat one is connected the trimmer base; Pinch seat and one be provided with pinch roll support one, pinch roll support one is provided with the pinch roll driving shaft, the pinch roll driving shaft through flat key with pinch driving wheel and link to each other; Pinch roll driving shaft and pinch and be provided with bearing between the driving wheel, pinch roll driving shaft end with pinch oil motor and be connected;
The afterbody that pinches seat two is provided with bearing; Bearing is provided with and pinches hydraulic cylinder; The piston rod that pinches hydraulic cylinder links to each other with pinch roll support two, and pinch roll support two is slidingly connected with pinching seat two heads, and pinch roll support two is provided with the pinch roll driven shaft; The pinch roll driven shaft is provided with and pinches driven pulley, pinch roll driven shaft and pinch and be provided with ball bearing between the driven pulley.
Compared with prior art, the beneficial effect of the utility model is: be applicable to and repair the little U-shaped steel bracket of damaged condition, earlier through heat treatment; Pass through the trimmer shaping again; U-shaped steel bracket after the reparation is reached be not less than new resistance, satisfy the requirement of recycling, solve the colliery discarded U-shaped steel bracket that pile up like a mountain and handle problems; Can have promotional value for enterprise saves cost.
Description of drawings
Fig. 1 is that trimmer example structure sketch map is repaired with the U-shaped steel bracket in the utility model tunnel;
Fig. 2 is the utility model seven roller trimmer example structure sketch mapes;
Fig. 3 is along A-A line cutaway view among Fig. 2;
Fig. 4 is the utility model clamping device example structure sketch map;
Fig. 5 is along B-B line cutaway view among Fig. 4;
Fig. 6 be among Fig. 1 before the C-C line machine pinch roll cutaway view.
Numerals 1: - heating zones 2 - quenching zone 3 - shaping area 4 - Why feed zone 5 - loaded steel machine 6 - into the furnace roller 7 - Furnace 8 - photoelectric switch one 9 - baked roller 10 - clamping devices 11 - spray piping 12 - front of roller 13 - front of pinch rolls 14 - seven roller shaping Machine 15 - machine of roller 16 - Transport roller 17 - Fixed bezel 18 - Steel chain transfer machine 19 - photoelectric switch two 20 - shaping machine base 21 - outer arc Roller seat 22 - inner arc roll holder 23 - outer arc roll 24 - inner arc roller 25 - Plastic arc 26-U-shaped steel bracket 27 - outside the arc pressure wheel 28 - within arc pressure wheel 29 - Press wheel 30 - upper roller sleeve 31 - tapered roller bearings 32 - aligning bearings 33 - Hydraulic motor 34 - under the pressure of wheel sets 35 - Slide Bracket one 36 - slide bracket two 37 - mounting brackets a 38 - mounting brackets two 39 - cylinder one 40 - Hydraulic cylinder two 41 - slide-42 - Slide two 43 - outside the top of the key board 44 - within the top of the key board 45 - quenching roller 46 - Block a pinch 47 - pinch seat two 48 - seat 49 - pinch hydraulic cylinders? ? 50 - pinch roll stand one 51 - pinch roller drive shaft 52 - pinch driven wheel 53 - ball bearings 54 - pinch roll stand two 55 - Pinch motor oil? ? 56 - pinch roller drive shaft 57 - Bearing 58 - pinch capstan 59 - flat key
The specific embodiment
Be described further below in conjunction with the specific embodiment of accompanying drawing the utility model:
Seeing Fig. 1, is that trimmer example structure sketch map is repaired with the U-shaped steel bracket in the utility model tunnel, comprises the thermal treatment zone 1, quench zone 2, shaping region 3 and discharging area 4, and the thermal treatment zone 1 is connected with quench zone 2, shaping region 3, discharging area 4 successively;
The thermal treatment zone 1 comprises dress steel machine 5, goes into furnace roller road 6, heating furnace 7 and furnace delivery table 9, goes into furnace roller road 6, heating furnace 7 and furnace delivery table 9 and links to each other successively, goes into the furnace roller road 6 other dress steel machines 5 that are provided with;
Quench zone 2 comprises optoelectronic switch 1, quenching roller-way 45, clamping device 10 and water pipe 11; Optoelectronic switch 1 is arranged in pairs in the tapping side of quench zone; Clamping device 10 is arranged between the quenching roller-way 45; Water pipe 11 is respectively equipped with the nozzle more than three in U-shaped steel bracket both sides, and both sides respectively are provided with seven nozzles among the embodiment, and optoelectronic switch 1 is used for U-shaped steel bracket clamping prelocalization;
Shaping region 3 comprises roller-way 15 behind pinch roll 13 before the machine front roller-way 12, machine, seven roller trimmers 14 and the machine, machine front roller-way 12 successively with machine before behind the pinch roll 13, seven roller trimmers 14, machine roller-way 15 be connected;
Discharging area 4 comprises conveyor roller 16, optoelectronic switch 2 19, fixed dam 17 and chain type machine for moving steel 18; Conveyor roller 16 tail ends are provided with fixed dam 17; Chain type machine for moving steel 18 is located at conveyor roller 16 sides, and conveyor roller 16 is provided with optoelectronic switch 2 19 in pairs with chain type machine for moving steel 18 junctions, and optoelectronic switch 2 19 is used for blanking to be waited for; Avoid chain type machine for moving steel 18 workpiece not to be taken off, cause windrow;
See Fig. 2, Fig. 3; Seven roller trimmers 14 comprise trimmer base 20, outer arc roller seat 21, inner arc roller seat 22, outer arc roller 23, inner arc roller 24, U-shaped steel bracket 26, outer arc pinch roller 27 and inner arc pinch roller 28, and corresponding shaping camber line 25 outsides are provided with outer arc roller seat 21 on the trimmer base 20, the inboard is provided with inner arc roller seat 22, four outer arc rollers 23 of arc shooting on the outer arc roller seat 21; Four outer arc roller 23 center lines place segmental arcs are concentric with shaping camber line 25; Adjacent outer arc roller angle is 20 °, and 24, three inner arc roller 24 center lines places of three inner arc rollers of arc shooting segmental arc is also concentric with shaping camber line 25 on the inner arc roller seat 22; Adjacent inner arc roller angle also is 20 °; Outer arc roller 23 is crisscross arranged with inner arc roller 24, and outer arc roller 23 is provided with outer arc pinch roller 27, and inner arc roller 24 is provided with inner arc pinch roller 28; Slit and U-shaped steel bracket 26 cross section profiles are consistent between outer arc pinch roller 27 and the inner arc pinch roller 28, and outer arc roller 23 is equipped with hydraulic motor 33 with inner arc roller 24 tops.
See Fig. 4, Fig. 5; Clamping device comprises slide support 1, slide support 2 36, fixed support 1, fixed support 2 38, hydraulic cylinder 1, hydraulic cylinder 2 40, slide 1, slide 2 42, outer arc top board 43 and inner arc top board 44, and slide support 1 is separately positioned on quenching roller-way 45 both sides with slide support 2 36;
Slide support 1 is provided with slide 1, and fixed support 1 is located at the outside of slide support 1, and fixed support 1 is provided with hydraulic cylinder 1, and the tailpiece of the piston rod of hydraulic cylinder 1 links to each other with slide 1, and slide 1 is connected with outer arc top board 43;
Slide support 2 36 is provided with slide 2 42; Fixed support 2 38 is located at the outside of slide support 2 36; Fixed support 2 38 is provided with hydraulic cylinder 2 40, and the tailpiece of the piston rod of hydraulic cylinder 2 40 links to each other with slide 2 42, and slide 2 42 is connected with inner arc top board 44; The slit is consistent with U-shaped steel bracket 26 cross section profiles between outer arc top board 43 and the inner arc top board 44; Outer arc top board 43 evenly is provided with along U-shaped steel bracket 26 total lengths with inner arc top board 44 and is no less than five pairs, is six pairs among the embodiment, the deflection of U-shaped steel bracket 26 when quenching with restriction.
See Fig. 6; Pinch roll comprises and pinches seat 1, pinches seat 2 47, pinches hydraulic cylinder 49, pinch roll support 1, pinch roll driven shaft 51, pinches driven pulley 52, pinch roll support 2 54, pinch roll driving shaft 56 and pinch driving wheel 58 before the machine; Pinch seat 1 and pinch seat 2 47 and radially be arranged on U-shaped steel bracket 26 both sides respectively; Pinch the feed side that seat 1 is connected trimmer base 20; Pinch seat and one 46 be provided with pinch roll support 1, pinch roll support 1 is provided with pinch roll driving shaft 56, pinch roll driving shaft 56 through flat key 59 with pinch driving wheel 58 and link to each other; Pinch roll driving shaft 56 and pinch and be provided with bearing 57 between the driving wheel 58, pinch roll driving shaft 56 ends with pinch oil motor 55 and be connected;
The afterbody that pinches seat 2 47 is provided with bearing 48; Bearing 48 is provided with and pinches hydraulic cylinder 49; The piston rod that pinches hydraulic cylinder 49 links to each other with pinch roll support 2 54, and pinch roll support 2 54 is slidingly connected with pinching seat 2 47 heads, and pinch roll support 2 54 is provided with pinch roll driven shaft 51; Pinch roll driven shaft 51 is provided with and pinches driven pulley 52, pinch roll driven shaft 51 and pinch and be provided with ball bearing 53 between the driven pulley 52.Pinch hydraulic cylinder 49 distance that pinches driven pulley 52 and pinch driving wheel 58 is increased, clamp again when pinching driven pulley 52 and pinching between the driving wheel 58 when U-shaped steel bracket 26 heads get into, and U-shaped steel bracket 26 is sent in the seven roller trimmers 14.
The heat treatment method that repair with the U-shaped steel bracket in the utility model tunnel; Be to adopt quenching, self tempering mode; After making workpiece in heating furnace, stop 1～1.5 hour; Temperature is left the thermal treatment zone after reaching 900 ℃ ± 10 ℃, in quench zone surface of the work is sprayed water 10～30 seconds, and temperature should be not less than 500 ℃ when workpiece got into shaping region.
The utility model course of work is following:
1) the U-shaped steel bracket is through going on the furnace roller road 6 to dress steel machine 5 front roller-ways, and when allowing the charging signal to arrive, heating furnace 7 oven door opening are returned after dress steel machine 5 pushes the U-shaped steel bracket in the heating furnace 7, and heating furnace 7 is closed fire door, and charging finishes;
2) the U-shaped steel bracket stopped in heating furnace 7 after 1～1.5 hour, and temperature reaches 900 ℃ ± 10 ℃ after furnace delivery table 9 leaves the thermal treatment zone 1;
3) after the U-shaped steel bracket was transported to quench zone 2, clamping device 10 was stable with the clamping of U-shaped steel bracket, and water pipe 11 water sprays 10～30 seconds quench after the end, and quenching roller-way 45 is transported to the U-shaped steel bracket on the machine front roller-way 12, and this moment, U-shaped steel bracket temperature was more than 500 ℃;
4) in the U-shaped steel bracket after quenching can not be nipped seven roller trimmers 14 automatically, pinch roll 13 was sent into the U-shaped steel bracket in the pass of seven roller trimmers 14 before the machine, and after first three roller of treating seven roller trimmers was nipped, pinch roll 13 unclamped and returns before the machine;
5) all near the conveyor roller 16 of new product size through discharging area 4, being transported to rolls off the production line on the chain type machine for moving steel 18 deposits the U-shaped steel bracket after the shaping at cross sectional shape and radian;
6) U-shaped steel bracket after the heat treatment is carried out yield strength, tensile strength, elongation after fracture test, table 1 is seen in the mechanical property contrast.
Table 1
Analysis shows that after Overheating Treatment, the yield strength and the tensile strength of U-shaped steel bracket are improved; The highest raising 35.7%, thermal effectiveness is obvious, can reach fully to be not less than new resistance; Satisfy the requirement of recycling, and can improve existing U-shaped steel supporting intensity.
Claims (5)
1. trimmer is repaired with the U-shaped steel bracket in the tunnel, it is characterized in that comprise the thermal treatment zone, quench zone, shaping region and discharging area, the thermal treatment zone is connected with quench zone, shaping region, discharging area successively;
The said thermal treatment zone comprises dress steel machine, goes into furnace roller road, heating furnace and furnace delivery table, goes into furnace roller road, heating furnace and furnace delivery table and links to each other successively, goes into the other dress steel machine that is provided with in furnace roller road;
Said quench zone comprises optoelectronic switch one, quenching roller-way, clamping device and water pipe; Optoelectronic switch one is arranged in pairs in the tapping side of quench zone; Clamping device is arranged between the quenching roller-way, and water pipe is respectively equipped with the nozzle more than three in U-shaped steel bracket both sides;
Said shaping region comprises roller-way behind pinch roll before the machine front roller-way, machine, seven roller trimmers and the machine, the machine front roller-way successively with machine before behind the pinch roll, seven roller trimmers, machine roller-way be connected;
Said discharging area comprises conveyor roller, optoelectronic switch two, fixed dam and chain type machine for moving steel, and the conveyor roller tail end is provided with fixed dam, and the chain type machine for moving steel is located at the conveyor roller side, and conveyor roller and chain type machine for moving steel junction are provided with optoelectronic switch two in pairs.
2. trimmer is repaired with the U-shaped steel bracket in tunnel according to claim 1, it is characterized in that said seven roller trimmers comprise trimmer base, outer arc roller seat, inner arc roller seat, outer arc roller, inner arc roller, U-shaped steel bracket, outer arc pinch roller and inner arc pinch roller; The corresponding shaping camber line outside is provided with the outer arc roller seat on the trimmer base, the inboard is provided with the inner arc roller seat; Four outer arc rollers of arc shooting on the outer arc roller seat, four outer arc roller center line place segmental arcs are concentric with the shaping camber line, and adjacent outer arc roller angle is 20 °; Three inner arc rollers of arc shooting on the inner arc roller seat; Three inner arc roller center line place segmental arcs are also concentric with the shaping camber line, and adjacent inner arc roller angle also is 20 °, and outer arc roller and inner arc roller are crisscross arranged; The outer arc roller is provided with the outer arc pinch roller; The inner arc roller is provided with the inner arc pinch roller, and slit and U-shaped steel bracket cross section profile are consistent between outer arc pinch roller and the inner arc pinch roller, and outer arc roller and inner arc roller top are equipped with hydraulic motor.
3. trimmer is repaired with the U-shaped steel bracket in tunnel according to claim 2; It is characterized in that; Said inner arc roller comprises inner arc pinch roller, wheel pressing shaft, upper pressure wheel cover, taper roll bearing, self-aligning bearing and lower pressure wheel cover, and the inner arc pinch roller is located at the wheel pressing shaft stage casing, is provided with taper roll bearing between wheel pressing shaft upper end and the upper pressure wheel cover; Be provided with self-aligning bearing between wheel pressing shaft lower end and the lower pressure wheel cover, the upper pressure wheel cover is connected with the inner arc roller seat respectively with the lower pressure wheel cover.
4. trimmer is repaired with the U-shaped steel bracket in tunnel according to claim 1 and 2; It is characterized in that; Said clamping device comprises slide support one, slide support two, fixed support one, fixed support two, hydraulic cylinder one, hydraulic cylinder two, slide one, slide two, outer arc top board and inner arc top board, and slide support one is separately positioned on quenching roller-way both sides with slide support two;
Slide support one is provided with slide one, and fixed support one is located at the outside of slide support one, and fixed support one is provided with hydraulic cylinder one, and the tailpiece of the piston rod of hydraulic cylinder one links to each other with slide one, and slide one is connected with the outer arc top board;
Slide support two is provided with slide two; Fixed support two is located at the outside of slide support two; Fixed support two is provided with hydraulic cylinder two, and the tailpiece of the piston rod of hydraulic cylinder two links to each other with slide two, and slide two is connected with the inner arc top board; The slit is consistent with U-shaped steel bracket cross section profile between outer arc top board and the inner arc top board, and outer arc top board and inner arc top board are no less than 5 pairs along the setting of U-shaped steel bracket total length.
5. trimmer is repaired with the U-shaped steel bracket in tunnel according to claim 4; It is characterized in that; Pinch roll comprises and pinches seat one, pinches seat two, pinches hydraulic cylinder, pinch roll support one, pinch roll driven shaft, pinches driven pulley, pinch roll support two, pinch roll driving shaft and pinch driving wheel before the said machine; Pinch seat one and pinch seat and two radially be arranged on U-shaped steel bracket both sides respectively, pinch the feed side that seat one is connected the trimmer base, pinch seat one and be provided with pinch roll support one; Pinch roll support one is provided with the pinch roll driving shaft; The pinch roll driving shaft through flat key with pinch driving wheel and link to each other, pinch roll driving shaft and pinch and be provided with bearing between the driving wheel, pinch roll driving shaft end with pinch oil motor and be connected;
The afterbody that pinches seat two is provided with bearing; Bearing is provided with and pinches hydraulic cylinder; The piston rod that pinches hydraulic cylinder links to each other with pinch roll support two, and pinch roll support two is slidingly connected with pinching seat two heads, and pinch roll support two is provided with the pinch roll driven shaft; The pinch roll driven shaft is provided with and pinches driven pulley, pinch roll driven shaft and pinch and be provided with ball bearing between the driven pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203772602U CN202292021U (en) | 2011-09-30 | 2011-09-30 | U-shaped steel support repairing and shaping machine for roadways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203772602U CN202292021U (en) | 2011-09-30 | 2011-09-30 | U-shaped steel support repairing and shaping machine for roadways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202292021U true CN202292021U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203772602U Withdrawn - After Issue CN202292021U (en) | 2011-09-30 | 2011-09-30 | U-shaped steel support repairing and shaping machine for roadways |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202292021U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836900A (en) * | 2012-09-21 | 2012-12-26 | 铁煤集体企业联合发展有限公司 | U-shaped support steel reshaping and repairing machine |
| CN102873497A (en) * | 2012-09-21 | 2013-01-16 | 铁煤集体企业联合发展有限公司 | Repair production line for U-shaped supporting steel |
| CN103028920A (en) * | 2011-09-30 | 2013-04-10 | 鞍钢重型机械有限责任公司 | U-shaped steel bracket repairing reshaping machine for roadway |
| CN104128738A (en) * | 2014-06-30 | 2014-11-05 | 天津钢铁集团有限公司 | Repair method of suspension conveyor C-type hook |
| CN110695141A (en) * | 2019-10-30 | 2020-01-17 | 中国船舶重工集团公司第七一六研究所 | Rib inspection machine |
-
2011
- 2011-09-30 CN CN2011203772602U patent/CN202292021U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028920A (en) * | 2011-09-30 | 2013-04-10 | 鞍钢重型机械有限责任公司 | U-shaped steel bracket repairing reshaping machine for roadway |
| CN103028920B (en) * | 2011-09-30 | 2016-08-31 | 鞍钢重型机械有限责任公司 | Tunnel U-shaped steel bracket Plastic recovery machine |
| CN102836900A (en) * | 2012-09-21 | 2012-12-26 | 铁煤集体企业联合发展有限公司 | U-shaped support steel reshaping and repairing machine |
| CN102873497A (en) * | 2012-09-21 | 2013-01-16 | 铁煤集体企业联合发展有限公司 | Repair production line for U-shaped supporting steel |
| CN104128738A (en) * | 2014-06-30 | 2014-11-05 | 天津钢铁集团有限公司 | Repair method of suspension conveyor C-type hook |
| CN110695141A (en) * | 2019-10-30 | 2020-01-17 | 中国船舶重工集团公司第七一六研究所 | Rib inspection machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20160831 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |