CN112108887B - Platform-based equipment for processing large-diameter pipe section on construction site - Google Patents
Platform-based equipment for processing large-diameter pipe section on construction site Download PDFInfo
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- CN112108887B CN112108887B CN202010915847.8A CN202010915847A CN112108887B CN 112108887 B CN112108887 B CN 112108887B CN 202010915847 A CN202010915847 A CN 202010915847A CN 112108887 B CN112108887 B CN 112108887B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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Abstract
The invention discloses a platform device for processing operation of a large-diameter pipe section on a construction site, which comprises: the device comprises a machine head for processing the pipe section, a machine head guide rail for supporting the machine head, a transmission unit for providing support and transmission power for the large-diameter pipe section, a plurality of jacks for supporting the transmission unit and detachably connected with the transmission unit, and jack fixing bases for fixing the jacks and regularly arranging the jacks at equal intervals. The guide rail includes: a cavity rectangle guide rail for helping aircraft nose fixed position, the long limit in one side of guide rail is equipped with the spout, and sliding connection has the inside slider that is equipped with the draw-in groove on the spout, and the draw-in groove is used for fixed aircraft nose, and the drive unit includes: the invention improves the precision and the efficiency of the pipe section processing operation, realizes multiple purposes of one machine, synchronously carries out multiple procedures and can avoid potential safety hazards in the processing process.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a platform-based device for processing large-caliber pipe sections on a construction site.
Background
The operations of cutting, groove processing, polishing, derusting and the like of large-caliber pipe sections are frequently carried out in the construction process of municipal pipe networks and water plants. After the pipe is transported to a construction site, the operations of cutting, groove making, polishing, derusting and the like of the large-diameter pipe section are often manually carried out. When workers perform operations such as cutting, beveling, polishing and the like, the problems of low precision, low efficiency, long construction period and high cost exist.
Therefore, machining of large-diameter pipe sections needs mechanization to replace manual operation, but the existing pipe section machining machine is relatively rigid and can only achieve a single use function, and after a certain operation is completed, equipment of the pipe section machining machine needs to be dismantled to carry out the next operation.
At present, most of pipe section processing in a construction site still adopts manual operation, the construction environment often does not have the condition of configuring large numerical control equipment, and the large-diameter pipe section has more potential safety hazards in the processing process due to the volume and the weight.
The invention aims to solve the problems of how to improve the precision and efficiency of the pipe section processing operation, realize the multiple purposes of one machine, synchronously carry out multiple procedures and avoid potential safety hazards in the processing process.
Disclosure of Invention
The invention solves the technical problems of how to improve the precision and the efficiency of the pipe section processing operation, realize the multi-purpose of one machine, synchronously carry out various procedures and avoid potential safety hazards in the processing process.
The technical scheme of the invention is that the platform equipment for processing the large-caliber pipe section on the construction site comprises:
a machine head for processing a pipe section,
a head rail for supporting a head, the head rail comprising: a cavity rectangle guide rail for helping aircraft nose fixed position, the long limit in one side of guide rail is equipped with the spout, sliding connection has the inside slider that is equipped with the draw-in groove on the spout, slider one side is equipped with temperature sensor, the draw-in groove is used for fixed aircraft nose, still be equipped with the spacing groove that is used for injecing the slider position on the spout, guide rail both ends bottom is connected with the guide rail base respectively, one of them guide rail base one side is connected with the control unit who is used for controlling means operation, the control unit includes: a PLC controller, a first intermediate relay, a second intermediate relay and a power-off protection module which are respectively and electrically connected with the PLC controller, wherein the PLC controller is also electrically connected with a temperature sensor,
a drive unit for providing support and drive power to the large diameter pipe section, the drive unit acting on the large diameter pipe section through the hollow nose rail, the drive unit comprising: a bearing plate for supporting the large-diameter pipe section, a plurality of motors which are used for providing transmission power for the transmission unit and are positioned at the bottom of the bearing plate, two transmission rods which are transversely connected with the output ends of the motors, rotating wheels which are connected with the transmission rods and positioned at two sides of the bearing plate, pressure sensors which are used for measuring the pressure value applied to the rotating wheels by the large-diameter pipe section and are arranged in the rotating wheels, the pressure sensors are electrically connected with a PLC (programmable logic controller), the motors are electrically connected with a first intermediate relay,
a plurality of jacks which are used for supporting the transmission unit and are detachably connected with the transmission unit,
the jack fixing base is used for fixing the jacks and regularly arranging the jacks at equal intervals.
Further, spout a week is connected with the looped pipeline that the upper surface is equipped with the aperture, and the looped pipeline is used for cooling down the dust removal to the heavy-calibre pipeline section through the water spray in the course of working, and one side of looped pipeline is equipped with the water inlet, and the water inlet has connected gradually outlet pipe and water pump, and the outlet pipe is connected with the delivery port of water pump, water pump and second auxiliary relay electric connection, and the looped pipeline can cool down and remove dust the heat and the metal dust that the course of working produced with encircling, and the effect is better.
Furthermore, the bottom of the rotating wheel is connected with a fixed block, a jack clamping groove used for clamping the top of the jack is formed in the bottom of the fixed block, and the jack and the transmission unit can be detachably connected through the jack clamping groove, so that the device can be better carried, and is simple in combination and convenient to use.
Furthermore, a plurality of jack fixing openings used for clamping the bottom of the jack are formed in the jack fixing base, the jacks can be arranged in order by the jack fixing base, and the pipe section is not easy to separate from the transmission unit when the jack is required to be lifted longitudinally.
Preferably, the control unit is provided with a start/stop button for controlling the switch of the device, a speed plate for prompting the rotating speed of the motor, a first display lamp for displaying the overheating environment, a second display lamp for prompting the pipe section to be separated from the transmission unit, a rotating speed increasing button for increasing the rotating speed of the motor, a rotating speed reducing button for reducing the rotating speed of the motor, a third display lamp for displaying the connection state of the machine head and the control unit, a machine head switch button for controlling the switch of the machine head, a fourth display lamp for displaying the connection state of the jack and the control unit, and a jack control button for controlling the lifting of the jack, wherein the speed plate, the start/stop button, the first display lamp, the second display lamp, the rotating speed increasing button and the rotating speed reducing button are electrically connected with the PLC controller, and the design enables a worker to directly operate the lifting of the jack through the control unit, the rotating speed of the switch and the transmission unit of the machine head greatly saves labor and is simpler to operate.
Preferably, the control unit one side is equipped with the first interface of several that is used for the electric connection jack, a several second connector for the electric connection aircraft nose, and a third connector for the electric connection power, jack control button, fourth display lamp and first interface electric connection, the third display lamp, aircraft nose shift knob and second connector electric connection, such design makes the jack, the aircraft nose can directly pass through the connection of electric lines control unit, when needing a plurality of aircraft noses during operation, with a plurality of aircraft noses connection control unit, when needing single aircraft nose during operation, single aircraft nose connection control unit, it is applicable in different work scenes.
Preferably, the handpiece categories include: the multifunctional machine head can enable the platform equipment to simultaneously complete different machining of pipelines, and labor and time are saved.
Further preferably, the annular pipeline is a heat-resistant and wear-resistant silicon carbide pipeline, and the annular pipeline is not easily damaged in the machining process due to the heat-resistant and wear-resistant material.
The invention has the beneficial effects that:
1. the invention effectively solves the difficult problems frequently encountered in the processing operation of the large-caliber pipe section on the construction site by arranging various machine heads and the transmission unit for providing power for the large-caliber pipe section on the platform, so that the operations of pipe section cutting, groove making, pipe orifice polishing and the like can be synchronously carried out with high efficiency;
2. according to the invention, the temperature of the pipe section in the machining process is effectively obtained through the temperature sensor on the machine head guide rail electrically connected with the PLC, if the temperature is too high, the PLC performs power-off protection on the machine head and the transmission unit through the power-off protection module, so that overheating protection is provided for the whole machining process, and the potential safety hazard in the machining process is effectively reduced;
3. the PLC controller performs power-off protection on the machine head and the transmission unit through the power-off protection module after judging that the pipe section is possibly separated from the transmission unit when certain imbalance occurs in pressure values at the two sides, so that pipe section inclination protection is provided for the whole machining process, and potential safety hazards in the machining process are effectively reduced;
4. all parts of the invention are detachably connected and are convenient to combine, thus being well suitable for different construction places.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the connection of the head rail to the head of the present invention;
FIG. 3 is a top view of the head rail of the present invention;
FIG. 4 is a longitudinal cross-sectional view of the head rail of the present invention;
FIG. 5 is a schematic view of the construction of the drive unit and jack of the present invention;
FIG. 6 is a top plan view of the transmission unit of the present invention;
FIG. 7 is a transverse cross-sectional view of the transmission unit of the present invention;
FIG. 8 is a schematic structural view of the fixing base of the jack of the present invention;
FIG. 9 is a front view of the control unit of the present invention;
FIG. 10 is an internal structural view of the control unit of the present invention;
FIG. 11 is a side view of the control unit of the present invention;
wherein, 1-handpiece guide rail, 11-water pump, 12-control unit, 120-start-up close button, 121-rotating speed disc, 122-first display lamp, 123-second display lamp, 124-rotating speed increase button, 125-rotating speed decrease button, 126-third display lamp, 127-handpiece switch button, 128-fourth display lamp, 129-jack control button, 1210-PLC controller, 1211-first intermediate relay, 1212-second intermediate relay, 1213-power-off protection module, 1214-first connecting port, 1215-second connecting port, 1216-third connecting port, 13-slide block, 14-temperature sensor, 15-annular pipeline, 16-water outlet pipe, 17-limit groove, 18-clamping groove, 19-chute, 110-water inlet, 111-guide rail base, 112-guide rail, 2-jack, 3-jack fixing base, 31-jack fixing port, 4-transmission unit, 41-jack clamping groove, 42-fixing block, 43-rotating wheel, 44-bearing plate, 45-pressure sensor, 46-transmission rod, 47-motor, 5-large-caliber pipe section and 6-machine head.
Detailed Description
As shown in fig. 1, a platformization apparatus for large-diameter pipe section processing operation in a construction site includes:
a machine head 6 for machining a pipe section, the machine head 6 being of the kind comprising: a cutting machine head, a groove processing machine head and a polishing and derusting machine head.
As shown in fig. 2 and 4, a head rail 1 supporting a head 6, the head rail 1 includes: the hollow rectangular guide rail 112 is used for helping the head 6 to fix the position, a long edge of one side of the guide rail 112 is provided with a sliding groove 19, the sliding groove 19 is connected with a sliding block 13 with a clamping groove 18 inside in a sliding mode, one side of the sliding block 13 is provided with a temperature sensor 14, the clamping groove 18 is used for fixing the head 6, the sliding groove 19 is further provided with a limiting groove 17 used for limiting the position of the sliding block 13, the bottoms of the two ends of the guide rail 112 are respectively connected with a guide rail base 111, and one side of one guide rail base 111 is connected with a control unit 12 used for controlling the operation of a device.
As shown in fig. 10, the control unit 12 includes: the PLC controller 1210 includes a first intermediate relay 1211, a second intermediate relay 1212, and a power-off protection module 1213 electrically connected to the PLC controller 1210, respectively, the PLC controller 1210 further electrically connected to the temperature sensor 14, and the PLC controller 1210, the first intermediate relay 1211, the second intermediate relay 1212, and the power-off protection module 1213 are commercially available.
As shown in fig. 9, the control unit 12 is provided with a start/stop button 120 for controlling the switch of the device, a speed dial 121 for indicating the rotation speed of the motor, a first display lamp 122 for indicating the overheating of the environment, a second display lamp 123 for indicating the detachment of the pipe section from the transmission unit 4, a speed increase button 124 for increasing the rotation speed of the motor 47, a speed decrease button 125 for decreasing the rotation speed of the motor 47, a third display lamp 126 for indicating the connection state of the head 6 with the control unit 12, a head switch button 127 for controlling the switch of the head 6, a fourth display lamp 128 for indicating the connection state of the jack 2 with the control unit 12, and a jack control button 129 for controlling the lifting and lowering of the jack 2, wherein the speed dial 121, the start/stop button 120, the first display lamp 122, the second display lamp 123, the speed increase button 124, and the speed decrease button 125 are electrically connected to a PLC controller 1210, due to the design, a worker can directly operate the lifting of the jack 2, the switch of the machine head 6 and the rotating speed of the transmission unit 4 through the control unit 12, so that the labor is greatly saved, and the operation is simpler.
As shown in fig. 11, one side of the control unit 12 is provided with eight first connecting ports 1214 for electrically connecting the jack 2, four second connecting ports 1215 for electrically connecting the handpiece 6, and a third connecting port 1216 for electrically connecting a power supply, the jack control button 129, the fourth display lamp 128 are electrically connected to the first connecting ports 1214, and the third display lamp 126, the handpiece switch button 127 are electrically connected to the second connecting ports 1215, so that the jack 2 and the handpiece 6 can be directly connected to the control unit 12 through wires, when a plurality of handpieces 6 are required to operate, a plurality of handpieces are connected to the control unit 12, when a single handpiece 6 is required to operate, a single handpiece is connected to the control unit 12, and the handpiece 6 is commercially available in different operating scenarios.
As shown in fig. 3, 19 a week of spout is connected with the looped pipeline 15 that the upper surface is equipped with the aperture, looped pipeline 15 is heat-resisting wear-resisting type carborundum pipeline, heat-resisting wear-resisting material makes the looped pipeline be difficult to receive the damage in the course of working, looped pipeline 15 is used for cooling down the dust removal to heavy-calibre pipeline section 5 through the water spray in the course of working, one side of looped pipeline 15 is equipped with water inlet 110, water inlet 110 has connected gradually outlet pipe 19 and water pump 11, outlet pipe 19 is connected with the delivery port of water pump 11, water pump 11 and second auxiliary relay 1212 electric connection, looped pipeline 15 can cool down and remove the dust to the heat that the course of working produced with the metal dust encircleing formula, the effect is better, looped pipeline 15, water pump 11 is sold in the market.
As shown in fig. 6 and 7, the transmission unit 4 for providing support and transmission power to the large-diameter pipe section 5, the transmission unit 4 acting on the large-diameter pipe section 5 through the hollow head rail 1, the transmission unit 4 comprising: the large-caliber pipe section pressure measuring device comprises a bearing plate 44 used for supporting a large-caliber pipe section 5, eight motors 47 used for providing transmission power for a transmission unit 4 and located at the bottom of the bearing plate 44, two transmission rods 46 are transversely connected to output ends of the motors 47, the transmission rods 46 are connected with rotating wheels 43, the rotating wheels 43 are located on two sides of the bearing plate 44, pressure sensors 45 used for measuring pressure values applied to the rotating wheels 43 by the large-caliber pipe section 5 are arranged in the rotating wheels 43, the pressure sensors 45 are electrically connected with a PLC 1210, the motors 47 are electrically connected with a first intermediate relay 1211, and the motors 47 are commercially available.
As shown in fig. 5, the bottom of the rotating wheel 43 is connected with a fixed block 42, a jack slot 41 for engaging with the top of the jack 2 is arranged at the bottom of the fixed block 42, and eight jacks 2 which support the transmission unit 4 and are detachably connected with the transmission unit 4 are provided.
As shown in fig. 8, the jack 2 is fixed and the jacks 2 are arranged regularly at equal intervals, eight jack fixing openings 31 for clamping the bottom of the jack 2 are formed in the jack fixing base 3, and the jack fixing base 3 can arrange the jacks 2 regularly, so that the pipe section is not easy to separate from the transmission unit 4 when the jack 2 needs to be lifted vertically.
The working process of the invention is as follows:
1. the sequential position, the distance and the like of the four machine heads 6 with different operation functions are well adjusted according to the process requirements of machining the large-caliber pipe section 5, the machine heads are installed on the machine head guide rail 1, then the jack fixing base 3 is laid at the bottom of the hollow machine head guide rail 1, the bottom ends of eight jacks 2 required to be used are fixed on the jack fixing base 3 through jack fixing ports 31, the height of the jacks 2 is adjusted, and after the heights of the jacks 2 are adapted to the height of the machine head guide rail 1, the transmission unit 4 is fixed at the top of the jacks 2 through bottom jack clamping grooves 41;
2. connecting a water outlet of the water pump 11 with a water outlet pipe 16, connecting the water outlet pipe 16 with the annular pipeline 15 through a water inlet 110, connecting the eight used jacks 2 with a first connecting port 1214 through electric wires, connecting the four machine heads 6 with a second connecting port 1215 through electric wires, and connecting the control unit 12 with a power supply through a third connecting port 1216;
3. after a fourth display lamp 128 for displaying the connection condition of the jack 2 and a third display lamp 126 for displaying the connection condition of the machine head 6 are lighted up, a large-caliber pipe section 5 to be processed is erected on the transmission unit 4, the rotating speed of the motor 47 is observed through a rotating speed disc 121, when the rotating speed is too high, the rotating speed is adjusted to be proper by pressing a rotating speed reducing button 125 for multiple times, when the rotating speed is too low, the rotating speed is adjusted to be proper by pressing a rotating speed increasing button 124 for multiple times, and then the height of the jack 2 is adjusted to be proper for processing height through a jack control button 129;
4. the device is started by pressing the start-stop button 120, the PLC 1210 controls the motor 47 to start working through the first intermediate relay 1211, and the PLC 1210 controls the handpiece 6 to start working through the second intermediate controller 1212;
5. in the device to the in-process of heavy-calibre pipeline section 5 processing, PLC controller 1210 controls water pump 11 and goes out water, make the ring pipeline 15 cool down the dust removal to the pipeline section, temperature sensor 14 receives near 6 temperatures of aircraft nose, when the temperature is greater than 500 ℃, PLC controller 1210 controls outage protection module 1213 and cuts off the power supply to aircraft nose 6 and motor 47, and control first display lamp 122 and light, the suggestion temperature is overheated, pressure sensor 45 receives the pressure that transmission unit 4 both sides received, when the pressure differential distance that receives both sides is greater than 1000N, PLC controller 1210 controls outage protection module 1213 and cuts off the power supply to aircraft nose 6 and motor 47, and control second display lamp 123 and light, the suggestion heavy-calibre pipeline section 5 is about to break away from transmission unit 4.
Claims (6)
1. The utility model provides a to the platformization equipment of job site heavy-calibre pipeline section processing operation which characterized in that includes:
a machine head (6) for machining a pipe section,
a head rail (1) for supporting the head (6), the head rail (1) comprising: a cavity rectangle guide rail (112) for helping aircraft nose (6) fixed position, one side long edge of cavity rectangle guide rail (112) is equipped with spout (19), sliding connection has inside slider (13) that are equipped with draw-in groove (18) on spout (19), slider (13) one side is equipped with temperature sensor (14), draw-in groove (18) are used for fixed aircraft nose (6), still are equipped with spacing groove (17) that are used for injecing slider (13) position on spout (19), and cavity rectangle guide rail (112) both ends bottom is connected with guide rail base (111) respectively, one of them guide rail base (111) one side is connected with the control unit (12) that are used for controlling means operation, control unit (12) include: a PLC (1210), a first intermediate relay (1211), a second intermediate relay (1212) and a power-off protection module (1213) which are respectively electrically connected with the PLC (1210), wherein the PLC (1210) is also electrically connected with the temperature sensor (14),
a transmission unit (4) for providing support and transmission power for the large-diameter pipe section (5), the transmission unit (4) passes through the machine head guide rail (1) and acts on the large-diameter pipe section (5), and the transmission unit (4) comprises: a bearing plate (44) for supporting the large-diameter pipe section (5), a plurality of motors (47) for providing transmission power for the transmission unit (4) and located at the bottom of the bearing plate (44), two transmission rods (46) are transversely connected to the output ends of the motors (47), a rotating wheel (43) is connected to each transmission rod (46), the rotating wheels (43) are located on two sides of the bearing plate (44), a pressure sensor (45) for measuring the pressure value applied to the rotating wheels (43) by the large-diameter pipe section (5) is arranged in each rotating wheel (43), the pressure sensor (45) is electrically connected with the PLC controller (1210), and the motors (47) are electrically connected with the first intermediate relays (1211),
a plurality of jacks (2) which are used for supporting the transmission unit (4) and are detachably connected with the transmission unit (4),
the jack fixing bases (3) are used for fixing the jacks (2) and regularly arranging the jacks (2) at equal intervals;
the control unit (12) is provided with a starting and closing button (120) for controlling a device switch, a rotating speed disc (121) for prompting the rotating speed of the motor, a first display lamp (122) for displaying the overheating of the environment, a second display lamp (123) for prompting the pipe section to be separated from the transmission unit (4), a rotating speed increasing button (124) for increasing the rotating speed of the motor (47), a rotating speed reducing button (125) for reducing the rotating speed of the motor (47), a third display lamp (126) for displaying the connection state of the machine head (6) and the control unit (12), a machine head switch button (127) for controlling the switch of the machine head (6), a fourth display lamp (128) for displaying the connection state of the jack (2) and the control unit (12), and a jack control button (129) for controlling the lifting of the jack (2), wherein the rotating speed disc (121), The start-up and shut-down button (120), the first display lamp (122), the second display lamp (123), the rotating speed increasing button (124) and the rotating speed reducing button (125) are electrically connected with the PLC (1210); a plurality of first connecting ports (1214) for electrically connecting the jack (2), a plurality of second connecting ports (1215) for electrically connecting the handpiece (6), and a third connecting port (1216) for electrically connecting a power supply are arranged on one side of the control unit (12), the jack control button (129) and the fourth display lamp (128) are electrically connected with the first connecting ports (1214), and the third display lamp (126) and the handpiece switch button (127) are electrically connected with the second connecting ports (1215);
when a plurality of machine heads (6) are required to work, the plurality of machine heads are connected with the control unit (12), and when a single machine head (6) is required to work, the single machine head is connected with the control unit (12), so that the device can be suitable for different working scenes.
2. The platformization equipment for processing operations of large-diameter pipe sections in construction sites according to claim 1, wherein an annular pipeline (15) with small holes on the upper surface is connected to a periphery of the chute (19), the annular pipeline (15) is used for cooling and dedusting the large-diameter pipe sections (5) through water spraying in a processing process, a water inlet (110) is formed in one side of the annular pipeline (15), a water outlet pipe (16) and a water pump (11) are sequentially connected to the water inlet (110), the water outlet pipe (16) is connected to a water outlet of the water pump (11), and the water pump (11) is electrically connected to the second intermediate relay (1212).
3. The platformization equipment for processing large-diameter pipe sections in construction sites according to claim 1, wherein a fixed block (42) is connected to the bottom of the rotating wheel (43), and a jack clamping groove (41) used for clamping the top of the jack (2) is formed in the bottom of the fixed block (42).
4. The platformization equipment for the large-diameter pipe section processing operation in the construction site according to claim 1, wherein a plurality of jack fixing openings (31) for engaging with the bottom of the jack (2) are formed in the jack fixing base (3).
5. A platformization plant for work operations on large-diameter pipe sections on construction sites, according to claim 1, characterised in that said machine head (6) is of the type comprising: a cutting machine head, a groove processing machine head and a polishing and derusting machine head.
6. The flatbed apparatus for working large diameter pipe sections at construction sites according to claim 2, wherein the ring-shaped pipe (15) is a heat-resistant and wear-resistant silicon carbide pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010915847.8A CN112108887B (en) | 2020-09-03 | 2020-09-03 | Platform-based equipment for processing large-diameter pipe section on construction site |
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| CN202010915847.8A CN112108887B (en) | 2020-09-03 | 2020-09-03 | Platform-based equipment for processing large-diameter pipe section on construction site |
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| CN112108887B true CN112108887B (en) | 2021-12-31 |
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| CN107877176A (en) * | 2017-11-13 | 2018-04-06 | 广东湘凯办公家具有限公司 | A kind of steel pipe system of processing |
| CN107962395A (en) * | 2017-12-29 | 2018-04-27 | 中远泰工业自动化科技有限公司 | A kind of pipeline automation production line |
| CN208391457U (en) * | 2018-05-29 | 2019-01-18 | 惠州市华阳精机有限公司 | Multistation product organisation of working |
| CN108955978A (en) * | 2018-07-09 | 2018-12-07 | 西安理工大学 | A kind of pressure balance detection system |
| CN208556509U (en) * | 2018-07-16 | 2019-03-01 | 中建安装集团有限公司 | A kind of restricted clearance hydraulic jacking device |
| CN109834466A (en) * | 2018-09-26 | 2019-06-04 | 郑州时效机械设备有限公司 | Automatic blanking, cutting, edging all-in-one machine and its application method |
| CN109093401A (en) * | 2018-10-12 | 2018-12-28 | 河南巨人起重机集团有限公司 | A kind of shaft processing unit (plant) for the automation processing of trolley end carriage shaft |
| CN209793091U (en) * | 2018-12-19 | 2019-12-17 | 广东科立工业技术股份有限公司 | Fixed-length sawing and coding machine for aluminum bars |
| CN109877597A (en) * | 2019-04-03 | 2019-06-14 | 浙江雅虎汽车部件有限公司 | Seat framing structure pipe forming production line |
| CN111451768A (en) * | 2020-04-16 | 2020-07-28 | 扬州大学 | Large-diameter steel pipe high efficiency cutting chamfer all-in-one |
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