CN102079068A - Hydraulic supporting, leveling and clamping device of large-size working piece - Google Patents
Hydraulic supporting, leveling and clamping device of large-size working piece Download PDFInfo
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- CN102079068A CN102079068A CN 201010125732 CN201010125732A CN102079068A CN 102079068 A CN102079068 A CN 102079068A CN 201010125732 CN201010125732 CN 201010125732 CN 201010125732 A CN201010125732 A CN 201010125732A CN 102079068 A CN102079068 A CN 102079068A
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- 238000009826 distribution Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 description 11
- 238000000429 assembly Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
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- 239000000446 fuel Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention relates to a hydraulic supporting, leveling and clamping device of a large-size working piece, comprising supporting oil cylinder components, a jacking oil cylinder component, a pressure-regulating oil cylinder component, positioning oil cylinder components, clamping oil cylinder components, a longitudinal positioning mechanism, a conveying supporting roller component, a roller guiding mechanism, a control system, and the like. The jacking oil cylinder component and the pressure-regulating oil cylinder component are mounted on a base plane A at the same heights, mutually crossed and distributed in parallel in three points forming an isosceles triangle, the plurality of supporting oil cylinder components are arranged on the base plane A at the same heights and coaxially and uniformly distributed between the jacking oil cylinder component and the pressure-regulating oil cylinder component at the same height; and the plurality of positioning oil cylinder components and the plurality of clamping oil cylinder components are respectively arranged at the left and the right of the jacking oil cylinder component and the pressure-regulating oil cylinder component and uniformly distributed at the same heights. The invention has the advantages of saving equipment cost and being good for energy saving and emission reducing, is suitable for automatic operation on a production line, can automatically level and clamp a working piece and improve the production efficiency.
Description
Technical field
The present invention relates to a kind of device of machining, relate in particular to a kind of large-scale workpiece hydraulic support leveling clamping device.
Background technology
The stock-removing machine workpiece of machining equipment mostly is installed on the workbench to be processed, if be installed on the workbench, machine tool needs very big actuator and driving force for the large-scale heavy duty workpiece.The machine tool complex structure is huge like this, and drive system needs very big power source, and the equipment manufacturing cost height is very uneconomical, and therefore existing machine tool lacks the campaign-styled device that the large-scale heavy duty workpiece is installed.Even the lathe of kind of console mode is arranged, workpiece installs and fixes motionless form, but the workbench that also needs console mode is used for installing workpiece, and needs basis, corresponding place, and workpiece needs the manual synchronizing leveling, wastes time and energy.All can not be used for production line and another important situation is these two kinds of forms, not be suitable for the streamline automated job.
Summary of the invention
Main purpose of the present invention is to solve and the satisfied a kind of large-scale workpiece hydraulic support leveling clamping device that is used for installing in the production line automation operation large-scale heavy duty workpiece.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of large-scale workpiece hydraulic support leveling clamping device, form by support cylinder assembly, jacking cylinder assembly, pressure regulation cylinder component, positional cylinder assembly, clamping cylinder assembly, vertical location device, transmission supporting rollern assembly, roller guiding mechanism, control system, it is characterized in that: described jacking cylinder assembly and pressure regulation cylinder component are contour to be installed on the basal plane A, is 3 parallel distributions of intersection mutually of isosceles triangle; Described support cylinder assembly is installed on the basal plane A, and coaxial line evenly distributes between jacking cylinder assembly and pressure regulation cylinder component and be contour with it; Described positional cylinder assembly and clamping cylinder assembly lay respectively at the left and right sides of jacking cylinder assembly, pressure regulation cylinder component, and contour symmetrical distribution; Described transmission supporting rollern assembly is between support cylinder assembly, jacking cylinder assembly, pressure regulation cylinder component and positional cylinder assembly, clamping cylinder assembly, and a little more than support cylinder assembly, jacking cylinder assembly, pressure regulation cylinder component; Described roller guiding mechanism is provided with several, is positioned at the next door of positional cylinder assembly or clamping cylinder assembly; Described vertical location device be positioned at clamping device front position, be installed in base support one side of positional cylinder assembly or clamping cylinder assembly 5.
Technical scheme of the present invention can also be further perfect:
As preferably, described jacking cylinder assembly, pressure regulation cylinder component by take over a business, power sensor, oil cylinder locker A, oil cylinder A, cylindrical holder, sensor form; Described oil cylinder locker A, link to each other with oil cylinder A, the nationality screw fixings is on cylindrical holder, and the power sensor links to each other with oil cylinder locker A, the top with take over a business to be connected, sensor is contained in oil cylinder locker A middle part.
As preferably, described control system by hydraulic system and electrical system respectively control combination form, comprise power sensor, proportional servo valve, magnetic valve, pressure switch, PLC controller, sensor constitute closed loop feedback system by pipeline, circuit, Hydraulic Station; The power sensor is connected with the PLC controller by circuit; Proportional servo valve makes the pressure regulation cylinder component be connected with the PLC controller by circuit, is connected with pressure regulation cylinder component, Hydraulic Station respectively by pipeline; Support cylinder assembly, jacking cylinder assembly, positional cylinder assembly, clamping cylinder assembly by magnetic valve and pipeline and Hydraulic Station, and by pressure switch via line and pipeline, are connected with PLC controller, Hydraulic Station respectively; Sensor makes support cylinder assembly, jacking cylinder assembly, pressure regulation cylinder component, positional cylinder assembly, clamping cylinder assembly be connected with the PLC controller respectively by circuit.
As preferably, described support cylinder assembly is made up of pallet, oil cylinder locker B, oil cylinder B, sensor, cylindrical holder; Described oil cylinder locker B links to each other with oil cylinder B, and the nationality screw fixings is on cylindrical holder, and pallet is contained in oil cylinder B upper position, and sensor is contained in oil cylinder locker B middle part.
As preferably, described positional cylinder assembly is made up of base support, angle square frame, oil cylinder C, oil cylinder locker C, bulb compact heap, sensor; Described oil cylinder locker C links to each other with oil cylinder C, and the nationality screw fixings is on the angle square frame, and the angle square frame is contained in the base support upper position, and sensor is contained in oil cylinder locker C (29) middle part, and bulb compact heap (30) is contained in oil cylinder C (28) front end.
As preferably, described clamping cylinder assembly is made up of base support, angle square frame, oil cylinder, bulb compact heap; Described oil cylinder is contained on the angle square frame, and the angle square frame is contained in above the base support, and bulb compact heap (30) is contained in oil cylinder (31) front end.
As preferably, described transmission supporting rollern assembly is higher than support cylinder assembly, jacking cylinder assembly, pressure regulation cylinder component 3-5 centimetre, is made up of roller, roll wheel shaft, welding support; On the described roll wheel shaft roller is housed, the roll wheel shaft is installed on the welding support.
As preferably, described roller guiding mechanism is made up of guide roller, upright roller axle, flat support, hinged retaining mechanism, cylinder, slider frame; On the described upright roller axle roller is housed, is installed on the slider frame, slider frame can slippage on flat support, and hinged retaining mechanism one end is connected with slider frame, and the other end is connected with cylinder, and flat support is installed on the base support.
As preferably, described vertical location device is made up of control cylinder, backstay, support; Described control cylinder one end is contained on the basal plane A, and the other end and backstay are hinged, and the backstay middle part is hinged with support, and support is contained in base support one side.
Therefore, beneficial effect of the present invention is:
1) solved the installation and the leveling of large-scale heavy duty workpiece, do not needed the complicated huge driving mechanism of configuration on the machine tool apparatus bed apparatus, not only can save equipment cost, and energy-saving and emission-reduction have been of great benefit to electromechanical equipment;
2) technical scheme design of the present invention has the supporting rollern of transmission assembly, roller guiding mechanism, can be applicable to automated job on the production line;
3) technical scheme of the present invention design has control system, has the closed loop feedback function, can realize the unstressed supporting and the automatic leveling clamping work pieces down of workpiece, has improved production efficiency, and tangible economic benefit is arranged.
Description of drawings
Accompanying drawing 1 is a kind of schematic top plan view of the present invention;
Accompanying drawing 2 is front elevational schematic of Fig. 1;
Accompanying drawing 3 is pressure regulation cylinder component, jacking cylinder assembly schematic diagrames of Fig. 1;
Accompanying drawing 4 is control system schematic diagrames;
Accompanying drawing 5 is support cylinder assembly schematic diagrames of Fig. 1;
Accompanying drawing 6 is transmission supporting rollern assembly schematic diagrames of Fig. 1;
Accompanying drawing 7 is positional cylinder assembly schematic diagrames of Fig. 1;
Accompanying drawing 8 is clamping cylinder assembly schematic diagrames of Fig. 1;
Accompanying drawing 9 is roller guiding mechanism schematic diagrames of Fig. 1;
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is further described in detail.
Embodiment:
In the diagram: A is a basal plane, the 1st, the support cylinder assembly, the 2nd, the jacking cylinder assembly, the 3rd, the pressure regulation cylinder component, the 4th, the positional cylinder assembly, the 5th, the clamping cylinder assembly, the 6th, vertical location device, the 7th, transmit the supporting rollern assembly, the 8th, the roller guiding mechanism, the 9th, control system, the 10th, workpiece, the 11st, take over a business, the 12nd, the power sensor, the 13rd, oil cylinder locker A, the 14th, oil cylinder A, the 15th, cylindrical holder, the 16th, proportional servo valve, the 17th, magnetic valve, the 18th, pressure switch, the 19th, the PLC controller, the 20th, pipeline, the 21st, circuit, the 22nd, sensor, the 23rd, pallet, the 24th, oil cylinder locker B, the 25th, oil cylinder B, 26 base supports, the 27th, the angle square frame, the 28th, oil cylinder C, the 29th, oil cylinder locker C, the 30th, the bulb compact heap, the 31st, oil cylinder, the 32nd, roller, the 33rd, the roll wheel shaft, the 34th, welding support, the 35th, guide roller, the 36th, the upright roller axle, 37 flat supports, the 38th, hinged retaining mechanism, the 39th, cylinder, the 40th, control cylinder, the 41st, backstay, the 42nd, support, the 43rd, slider frame, Hydraulic Station 44.
Embodiment 1:
Processing object is to be used for per hour 350 kilometers of speed per hours, and the CRTS II type of using on the high speed railway construction is won lattice ballastless track plate.Workpiece profile length * wide * high size: 6450 * 2550 * 200 (millimeters) weigh 9 tons.Material is special concrete.
The supporting leveling that the present invention also can be used for other large-scale heavy duty plates, casing class A of geometric unitA clamps installation.
Shown in Fig. 1,2,3,4, workpiece 10, is delivered on the Working position from a last station through the guiding of roller guiding mechanism 8 by transmitting supporting rollern assembly 7, and 6 pairs of workpiece of vertical location device 10 carry out longitudinal register.Under the control of control system 9, three jacking cylinder assemblies 2 and three pressure regulation cylinder components 3 eject workpiece 10 and transmit supporting rollern assembly 7.And, under the instruction of control system 9, regulate the horizontal adjusting of workpiece 10 by the pressure adjusting, and in this process, can automatically different pressures be assigned on each point, make workpiece 10 under the situation of no pressurized, be in flat condition.Behind workpiece 10 level-ofves, jacking cylinder assembly 2 and pressure regulation cylinder component 3 carry out mechanical interlocking automatically; Simultaneously workpiece 10 will be subjected to the supplemental support of four support cylinder assemblies 1, under the control of control system 9 automatically to workpiece top, arrive certain pressure after, the oil cylinder auto lock.Subsequently, three positional cylinder assemblies 4 and three clamping cylinder assemblies 5 are arranged respectively in processing stations workpiece 10 both sides, workpiece 10 is carried out level clamp.Three positional cylinder assemblies 4 were approaching to workpiece with low-pressure before this, and after oil cylinder working-pressure reached predetermined pressure, oil cylinder was located automatically and locked; Three clamping cylinder assemblies 5 of an other side carry out high pressure to workpiece 10 automatically and clamp, and stop to clamp action automatically after reaching predetermined clamping pressure.
After workpiece 10 grindings are finished, accept the command signal of control system 9, three clamping cylinder assemblies 5 are return, three positional cylinder assembly 4 releases and rollback.The 1 first releases of four support cylinder assemblies descend, and three jacking cylinder assemblies 2, three pressure regulation cylinder components 3 then under the control of control magnetic valve 17 and proportional servo valve 16, make its synchronous decline, get a signal.Control system 9 is received signal post-processing, sends command signal and enters next working procedure, so moves in circles.
Hydraulic work system principle in the control system:
Thereby hydraulic system can require to adjust automatically relevant support and control system pressure control oil cylinder power output according to grinding parameter, realizes that the each point support force requires and a plurality of oil cylinder is synchronized with the movement.Each support cylinder assembly 1, jacking cylinder assembly 2, pressure regulation cylinder component 3, positional cylinder assembly 4, clamping cylinder assembly 5 clamp, put release action, utilize the motion of each hydraulic jack and locking to reach workpiece 10 and clamp under unstressed level.
Hydraulic system adds gear pump system to the hydraulic system fuel feeding by variable vane pump, and variable vane pump is to system's fuel feeding, system pressure 50-200bar, and gear pump system is responsible for the circulation cooling of fluid, keeps Hydraulic Station fluid proper temperature, slows down the fluid degradation speed.For guaranteeing hydraulic system safe and reliable operation and numerical control operation, pressure switch 18 is installed on the fluid pressure line.
The present invention can adjust hydraulic system in the control system 9 according to the difference of workpiece.
Each assembly effect and structure:
Be the support section of device as shown in Figure 3: three jacking cylinder assemblies 2 and three pressure regulation cylinder components 3, for the main of workpiece 10 supports.By take over a business 11, power sensor 12, oil cylinder locker A13, oil cylinder A14, cylindrical holder 15 form.
As shown in Figure 4 control system 9 by hydraulic system and electrical system respectively control combination form, constitute closed loop feedback system.The strong sensor 12 of main devices, proportional servo valve 16, compositions such as magnetic valve 17, pressure switch 18, PLC controller 19, pipeline 20, circuit 21, sensor 22, Hydraulic Station 44.Power sensor 12 is connected with PLC controller 19 by circuit 21; Proportional servo valve 16 makes pressure regulation cylinder component 3 be connected with PLC controller 19 by circuit 21, is connected with pressure regulation cylinder component 3, Hydraulic Station 44 respectively by pipeline 20; Support cylinder assembly 1, jacking cylinder assembly 2, positional cylinder assembly 4, clamping cylinder assembly 5 by magnetic valve 17 and pipeline 20 and Hydraulic Station 44, and by pressure switch 18 via line 21 and pipeline 20, are connected with PLC controller 19, Hydraulic Station 44 respectively; Sensor 22 makes support cylinder assembly 1, jacking cylinder assembly 2, pressure regulation cylinder component 3, positional cylinder assembly 4, clamping cylinder assembly 5 be connected with PLC controller 19 respectively by circuit 21.
Four of the support cylinder assembly support cylinder assemblies 1 are used for the supplemental support to workpiece 10 as shown in Figure 5.By forming by pallet 23, oil cylinder locker B24, oil cylinder B25, cylindrical holder 15.
Transmitting 7 effects of supporting rollern assembly as shown in Figure 6 is that the station position is carried and navigated to workpiece 10.Form by roller 32, roll wheel shaft 33, welding support 34.Vertically transmitting 7 about about 3 meters the asking of supporting rollern assembly, the transmission supporting rollern of drive is set, in driving bottom roller 32 rotations of motor, roller 32 drives workpiece 10 and do vertically transmission on transmits supporting rollern assembly 7, to next station motion.
Clamping cylinder assembly 5 is used for installation process workpiece pressing 10 as shown in Figure 8, is symmetrically distributed with positional cylinder assembly 4.Form by base support 26, angle square support 27, oil cylinder 31, bulb compact heap 30.
The motion of 8 pairs of workpiece 10 of roller guiding mechanism play the guiding role as shown in Figure 9, prevents the skew of workpiece 10 directions of motion, and both sides guide roller 35 and workpiece 10 respectively have the gap of 5 millimeter.Form by guide roller 35, upright roller axle 36, flat support 37, hinged retaining mechanism 38, cylinder 39.
6 pairs of workpiece 10 of vertical location device vertically limit the location as shown in figure 10.Form by control cylinder 40, backstay 41, support 42, be positioned at the front position of workpiece 10.
Large-scale workpiece hydraulic support leveling clamping device of the present invention is used on MKB7025 numerical control track plate special purpose grinder product and enforcement.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute, but can not depart from spirit of the present invention or surmount the defined scope of claims of the present invention described specific embodiment.
Claims (9)
1. large-scale workpiece hydraulic support leveling clamping device, form by support cylinder assembly (1), jacking cylinder assembly (2), pressure regulation cylinder component (3), positional cylinder assembly (4), clamping cylinder assembly (5), vertical location device (6), transmission supporting rollern assembly (7), roller guiding mechanism (8), control system (9), it is characterized in that: described jacking cylinder assembly (2) is installed on the basal plane (A) with pressure regulation cylinder component (3) is contour, is 3 parallel distributions of intersection mutually of isosceles triangle; Described support cylinder assembly (1) is installed on the basal plane (A), and coaxial line is positioned at evenly distribution and contour with it between jacking cylinder assembly (2) and the pressure regulation cylinder component (3); Described positional cylinder assembly (4) and clamping cylinder assembly (5) lay respectively at the left and right sides of jacking cylinder assembly (2), pressure regulation cylinder component (3), and contour symmetrical distribution; Described transmission supporting rollern assembly (7) is positioned between support cylinder assembly (1), jacking cylinder assembly (2), pressure regulation cylinder component (3) and positional cylinder assembly (4), the clamping cylinder assembly (5), and a little more than support cylinder assembly (1), jacking cylinder assembly (2), pressure regulation cylinder component (3); Described roller guiding mechanism (8) is provided with several, is positioned at the next door of positional cylinder assembly (4) or clamping cylinder assembly (5); Described vertical location device (6) be positioned at clamping device front position, be installed in base support (26) one sides of positional cylinder assembly (4) or clamping cylinder assembly (5).
2. according to the described large-scale workpiece hydraulic support of claim 1 leveling clamping device, it is characterized in that: described jacking cylinder assembly (2), pressure regulation cylinder component (3) by take over a business (11), power sensor (12), oil cylinder locker A (13), oil cylinder A (14), cylindrical holder (15), sensor (22) is formed; Described oil cylinder locker A (13), link to each other with oil cylinder A (14), the nationality screw fixings is on cylindrical holder (15), power sensor (12) links to each other with oil cylinder locker A (13), and the top is connected with taking over a business (11), and sensor (22) is contained in oil cylinder locker A (13) middle part.
3. according to the described large-scale workpiece hydraulic support of claim 1 leveling clamping device, it is characterized in that: described control system (9) by hydraulic system and electrical system respectively control combination form, comprise power sensor (12), proportional servo valve (16), magnetic valve (17), pressure switch (18), PLC controller (19), sensor (22), Hydraulic Station (44) constitute closed loop feedback system by pipeline (20), circuit (21); Power sensor (12) is connected with PLC controller (19) by circuit (21); Proportional servo valve (16) makes pressure regulation cylinder component (3) be connected with PLC controller (19) by circuit (21), is connected with pressure regulation cylinder component (3), Hydraulic Station (44) respectively by pipeline (20); Support cylinder assembly (1), jacking cylinder assembly (2), positional cylinder assembly (4), clamping cylinder assembly (5), by magnetic valve (17) and pipeline (20) and Hydraulic Station (44), and, be connected with PLC controller (19), Hydraulic Station (44) respectively by pressure switch (18) via line (21) and pipeline (20); Sensor (22) makes support cylinder assembly (1), jacking cylinder assembly (2), pressure regulation cylinder component (3), positional cylinder assembly (4), clamping cylinder assembly (5) be connected with PLC controller (19) respectively by circuit (21).
4. according to claim 1 or 2 or 3 described large-scale workpiece hydraulic support leveling clamping devices, it is characterized in that: described support cylinder assembly (1) is made up of pallet (23), oil cylinder locker B (24), oil cylinder B (25), sensor (22), cylindrical holder (15); Described oil cylinder locker B (24) links to each other with oil cylinder B (25), and the nationality screw fixings is on cylindrical holder (15), and pallet (23) is contained in oil cylinder B (25) upper position, and sensor (22) is contained in oil cylinder locker B (24) middle part.
5. according to claim 1 or 2 or 3 described large-scale workpiece hydraulic support leveling clamping devices, it is characterized in that: described positional cylinder assembly (4) is made up of base support (26), angle square frame (27), oil cylinder C (28), oil cylinder locker C (29), bulb compact heap (30), sensor (22); Described oil cylinder locker C (29) links to each other with oil cylinder C (28), the nationality screw fixings is on angle square frame (27), angle square frame (27) is contained in base support (26) upper position, and sensor (22) is contained in oil cylinder locker C (29) middle part, and bulb compact heap (30) is contained in oil cylinder C (28) front end.
6. according to claim 1 or 2 or 3 described large-scale workpiece hydraulic support leveling clamping devices, it is characterized in that: described clamping cylinder assembly (5) is made up of base support (26), angle square frame (27), oil cylinder (31), bulb compact heap (30); Described oil cylinder (31) is contained on the angle square frame (27), and angle square frame (27) is contained in above the base support (26), and bulb compact heap (30) is contained in oil cylinder (31) front end.
7. according to claim 1 or 2 or 3 described large-scale workpiece hydraulic support leveling clamping devices, it is characterized in that: described transmission supporting rollern assembly (7) is higher than support cylinder assembly (1), jacking cylinder assembly (2), pressure regulation cylinder component (3) 3-5 centimetre, is made up of roller (32), roll wheel shaft (33), welding support (34); Roller (32) is housed on the described roll wheel shaft (33), and roll wheel shaft (33) is installed on the welding support (34).
8. according to claim 1 or 2 or 3 described large-scale workpiece hydraulic support leveling clamping devices, it is characterized in that: described roller guiding mechanism (8) is made up of guide roller (35), upright roller axle (36), flat support (37), hinged retaining mechanism (38), cylinder (39), slider frame (43); Roller (35) is housed on the described upright roller axle (36), be installed on the slider frame (43), slider frame (43) can be gone up slippage at flat support (37), hinged retaining mechanism (38) one ends are connected with slider frame (43), the other end is connected with cylinder (39), and flat support (37) is installed on the base support (26).
9. according to claim 1 or 2 or 3 described large-scale workpiece hydraulic support leveling clamping devices, it is characterized in that: described vertical location device (6) is made up of control cylinder (40), backstay (41), support (42); Described control cylinder (40) one ends are contained on the basal plane (A), and the other end and backstay (41) are hinged, and backstay (41) middle part is hinged with support (42), and support (42) is contained in base support (26) one sides.
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| CN 201010125732 CN102079068B (en) | 2010-02-11 | 2010-02-11 | Hydraulic supporting, leveling and clamping device of large-size working piece |
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| CN 201010125732 CN102079068B (en) | 2010-02-11 | 2010-02-11 | Hydraulic supporting, leveling and clamping device of large-size working piece |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102501239A (en) * | 2011-10-28 | 2012-06-20 | 中联重科股份有限公司 | Box-shaped suspension arm online scribing method, scribing device and suspension arm production line |
| CN103696737B (en) * | 2012-09-28 | 2016-02-10 | 中国石油化工股份有限公司 | The universal liquid drive unit of band self-locking self-conductance |
| CN106003783A (en) * | 2016-07-04 | 2016-10-12 | 安徽东海机床制造有限公司 | Large-tonnage rotation movement hydraulic machine |
| CN108757616A (en) * | 2018-07-13 | 2018-11-06 | 江苏大学 | A kind of panzer synchronous hydraulic jacking system with levelling function |
| CN111439314A (en) * | 2020-04-21 | 2020-07-24 | 徐工集团工程机械股份有限公司建设机械分公司 | Leveling mechanism and construction machinery |
| CN113562422A (en) * | 2021-09-26 | 2021-10-29 | 中铁九局集团有限公司 | Track slab transportation jacking device and transportation jacking method |
| CN114148742A (en) * | 2021-12-10 | 2022-03-08 | 安徽苍井精密机械有限公司 | Heavy-load battery pack carrying truss |
| CN115338774A (en) * | 2022-10-18 | 2022-11-15 | 江苏邦翰信息科技有限公司 | Grinding device for dynamic environment monitoring mainboard |
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| CN103696737B (en) * | 2012-09-28 | 2016-02-10 | 中国石油化工股份有限公司 | The universal liquid drive unit of band self-locking self-conductance |
| CN106003783A (en) * | 2016-07-04 | 2016-10-12 | 安徽东海机床制造有限公司 | Large-tonnage rotation movement hydraulic machine |
| CN106003783B (en) * | 2016-07-04 | 2018-01-02 | 安徽东海机床制造有限公司 | A kind of long ton rotary movable hydraulic machine |
| CN108757616B (en) * | 2018-07-13 | 2019-12-03 | 江苏大学 | A kind of panzer synchronous hydraulic jacking system with levelling function |
| CN108757616A (en) * | 2018-07-13 | 2018-11-06 | 江苏大学 | A kind of panzer synchronous hydraulic jacking system with levelling function |
| CN111439314A (en) * | 2020-04-21 | 2020-07-24 | 徐工集团工程机械股份有限公司建设机械分公司 | Leveling mechanism and construction machinery |
| CN113562422A (en) * | 2021-09-26 | 2021-10-29 | 中铁九局集团有限公司 | Track slab transportation jacking device and transportation jacking method |
| CN113562422B (en) * | 2021-09-26 | 2021-12-14 | 中铁九局集团有限公司 | Track slab transportation jacking device and transportation jacking method |
| CN114148742A (en) * | 2021-12-10 | 2022-03-08 | 安徽苍井精密机械有限公司 | Heavy-load battery pack carrying truss |
| CN114148742B (en) * | 2021-12-10 | 2024-06-07 | 安徽苍井精密机械有限公司 | Heavy-duty battery pack carrying truss |
| CN115338774A (en) * | 2022-10-18 | 2022-11-15 | 江苏邦翰信息科技有限公司 | Grinding device for dynamic environment monitoring mainboard |
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Address after: 311305 No. 68 Qingshan Avenue, Linan Economic Development Zone, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Hangzhou Machinery Co., Ltd. Address before: 311305 No. 68 Qingshan Avenue, Linan Economic Development Zone, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Hangji Co., Ltd. |
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