CN115369720A - Directional hydraulic pressure vibrated roller of electrodeless frequency conversion - Google Patents
Directional hydraulic pressure vibrated roller of electrodeless frequency conversion Download PDFInfo
- Publication number
- CN115369720A CN115369720A CN202210907785.5A CN202210907785A CN115369720A CN 115369720 A CN115369720 A CN 115369720A CN 202210907785 A CN202210907785 A CN 202210907785A CN 115369720 A CN115369720 A CN 115369720A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 230000001360 synchronised effect Effects 0.000 claims abstract description 30
- 210000002706 plastid Anatomy 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000006096 absorbing agent Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005056 compaction Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
- E01C19/287—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows with vibrated elastically-deformable or elastomer-faced rolling elements or with such elements subjected to impacts, e.g. multi-roll vibratory apparatus with an endless elastomer belt passed around the rolls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
Abstract
The utility model provides a directional hydraulic pressure vibratory roller of electrodeless frequency conversion, belongs to machinery, and it includes multiloop synchronous vibration rotary valve, two plastid hydraulic vibration systems include two oscillators and a vibration steel wheel, the vibration steel wheel includes: the device comprises a steel cylinder, end plates and a main shaft, wherein two end plates are arranged in an inner hole of the cylinder, and the main shaft is arranged in a central hole of each end plate; a group of vibration bearings and a bearing seat are arranged on the overhanging shaft sections at the two ends of the main shaft; a vibrator is sleeved outside the bearing seat; the vibrator comprises a vibrator body; a square flange is arranged at the top of the vibrator body, and a guide groove is arranged at the lower part of the vibrator body; the vibration oil cylinder is arranged between the vibration steel wheel and the vibrator, and a piston rod of the vibration oil cylinder is connected with the square flange; the cylinder body of the vibration oil cylinder is fixedly connected with the bearing seat; a main vibration spring and a balance spring are arranged between the vibrators and the bearing seat in the vertical direction, and the two vibrators are controlled by the multi-loop synchronous vibration rotary valve to vibrate synchronously. The invention has the advantages of less energy loss and high energy utilization rate.
Description
Technical Field
The invention relates to the technical field of vibratory rollers, in particular to a directional hydraulic vibratory roller.
Background
In the existing vibratory roller technology, the vibratory steel wheel of the directional vibratory roller vibrates by using an inertial vibration technology, wherein the inertial vibration technology is a vibration technology for driving the vibratory steel wheel of the roller to vibrate by taking the resultant force of centrifugal forces generated by the rotation of two eccentric blocks as an effective exciting force; the effective exciting force is a simple harmonic force which changes along with a time period, 50% of horizontal component force in a vibration period is counteracted with each other to do useless work, and therefore the inertial vibration technology has the problem of low energy utilization rate; the existing directional vibratory roller can only use one or two fixed vibration frequencies for construction, and has the problems that the vibration frequency can not be infinitely changed in real time according to the requirements of construction conditions so as to improve the construction efficiency and reduce the construction cost; the structure is complex and the manufacturing cost is high; the advantage of vibratory compaction of a vibratory roller cannot be fully exerted, and the vibratory roller is a high-energy-consumption machine.
Disclosure of Invention
The invention provides a directional hydraulic vibratory roller, aiming at solving the problems of low energy utilization rate and incapability of realizing real-time stepless frequency conversion in the existing directional vibratory roller technology and improving the overall working performance of the directional roller.
The technical scheme of the invention is as follows: the utility model provides a directional hydraulic pressure vibrated roller of electrodeless frequency conversion, includes shock absorber, shock absorber bearing, elastic coupling, actuating mechanism, link, main frame, deflector, multiloop synchronous vibration rotary valve, hydraulic steel pipe, hydraulic pressure rubber tube, vibration bearing, vibrating cylinder, two plastid hydraulic vibration systems, characterized by two plastid hydraulic vibration systems include two oscillators and a vibration steel wheel, the vibration steel wheel includes: the vibration type hydraulic cylinder comprises a steel cylinder, end plates, a main shaft, a bearing seat and a vibration bearing, wherein two end plates are arranged in an inner hole of the cylinder, and the main shaft is arranged in a central hole of each end plate; a group of vibration bearings and a bearing seat are arranged on the overhanging shaft sections at the two ends of the main shaft; a vibrator is sleeved outside the bearing seat; the vibrator includes: the vibration generator comprises a vibrator body, a square flange and a guide groove; a square flange is arranged at the top of the vibrator body, and a guide groove is arranged at the lower part of the vibrator body; the vibration oil cylinder is arranged between the vibration steel wheel and the vibrator, and a piston rod of the vibration oil cylinder is connected with the square flange; the cylinder body of the vibration oil cylinder is fixedly connected with the bearing seat; a main vibration spring and a balance spring are arranged between the vibrators and the bearing seat in the vertical direction, and the two vibrators are controlled by the multi-loop synchronous vibration rotary valve to vibrate synchronously.
The further technical scheme of the invention is as follows: the multi-loop synchronous vibration rotary valve comprises a valve core, a valve sleeve, a valve body, a front end cover and a rear end cover; it is characterized in that the valve core is arranged in the central hole of the valve sleeve; the valve core and the valve sleeve can slide and relatively rotate without clearance, and the valve core is driven to rotate by a motor; the valve sleeve is arranged in the central hole of the valve body and is connected with the valve body in an interference fit manner; two ends of the valve body are respectively sealed by a front end cover and a rear end cover; the front end cover is provided with a shaft hole for the extension shaft of the valve core to extend out and seal; the back end cover is provided with a main oil return port, and the blade type multi-loop synchronous vibration rotary valve is used for the invention and only needs to reserve two groups of four control ports and one high-pressure oil port on the valve body.
The further technical scheme of the invention is as follows: the control ports of the multi-loop synchronous vibration rotating valve are communicated with the two oil ports of the vibration oil cylinder by using a hydraulic steel pipe and a hydraulic rubber pipe on two sides of the vibration steel wheel, and then the high-pressure oil port and the main oil return port are communicated with a hydraulic pump, so that a left valve-controlled oil cylinder type synchronous vibration hydraulic loop and a right valve-controlled oil cylinder type synchronous vibration hydraulic loop are formed; when high-pressure oil is alternately supplied to the two working cavities of the vibration oil cylinder through the multi-loop synchronous vibration rotary valve, a piston rod and a cylinder body of the vibration oil cylinder can simultaneously generate vibration displacement in opposite directions, and further the vibrator and the vibration steel wheel are excited to generate synchronous vibration; in the vibration process, the kinetic energy generated by the vibration of the vibrator can be transmitted to the vibrating steel wheel through the main vibrating spring and the balance spring, so that the vibrating steel wheel can continuously vibrate and continuously transmit the vibration energy to the compacted road surface, and the vibrating compaction process has better compaction effect; the vibrating steel wheel is always pressed on the compacted road surface, so that the vibrating steel wheel always vibrates together with the road surface, and the vibrating steel wheel cannot leave the road surface to generate a bounce phenomenon no matter how the vibration frequency and the amplitude change; when the output revolution of the motor is changed through the onboard controller to enable the valve core of the multi-loop synchronous vibration rotary valve to realize stepless speed change, the vibration frequency of the vibration oil cylinder can be infinitely changed, and the vibration frequency of the vibration steel wheel is also infinitely changed, so that the vibration steel wheel can fully exert the advantage of vibration compaction.
The invention further adopts the technical scheme that: a vibration damper bearing and a vibration damper are arranged on the outer side of the vibrator on the extending shaft on the left side of the main shaft; the vibration absorber is connected with the main frame through a connecting frame, and the main frame body of the directional hydraulic vibratory roller is supported by the structure; a driving mechanism is arranged in the connecting frame, an output shaft of the driving mechanism is connected with the main shaft through an elastic coupling, and the driving mechanism is used for driving the vibrating steel wheel to roll to draw the directional hydraulic vibrating road roller to walk.
The further technical scheme of the invention is as follows: the guide plates are respectively arranged on the connecting frames on the two sides of the vibrating steel wheel, the front ends of the guide plates are inserted into the guide grooves, the guide plates and the guide grooves can slide relatively, and the up-and-down motion of the vibrator is not influenced when the vibrator vibrates; when the vibrating steel wheel rolls, the guide plate can prevent the vibrator from rotating along with the vibrating steel wheel and can only vibrate in the vertical direction.
The invention has the beneficial effects that: the vibration mode of the invention is pure linear vibration, the energy utilization rate is high, and the energy-saving effect is obvious; the vibration frequency can be changed in real time to meet various construction requirements, and the construction cost is reduced; never bounce, good compaction effect and strong climbing ability; and the structure is simple, the design is reasonable, the manufacture is easy, the use is reliable, and the beneficial effect can be generated in the generation and the application.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a vibrator configuration of the present invention;
FIG. 3 is a schematic diagram of the multi-circuit synchronous oscillating rotary valve of the present invention;
in the drawings: 1. vibrating the steel wheel; 2. a vibrator; 3. a steel cylinder; 4. a bearing seat; 5. a main shaft; 6. a shock absorber; 7. a damper bearing; 8. an elastic coupling; 9. a drive mechanism; 10. a connecting frame; 11. a main frame; 12. a guide plate; 13. a multi-loop synchronous vibration rotary valve; 14. hydraulic steel pipes; 15. a hydraulic rubber hose; 16. a vibration bearing; 17. an end plate; 18. a vibration oil cylinder; 19. a square flange; 20. a main vibration spring; 21. a balance spring; 22. a vibrator body; 23. a guide groove.
Detailed description of the preferred embodiments
In order that the invention may be more fully understood, reference will now be made to the accompanying drawings.
The present invention provides the following embodiments: referring to fig. 1 and 2, the stepless frequency conversion directional hydraulic vibratory roller comprises a vibration damper 6, a vibration damper bearing 7, an elastic coupling 8, a driving mechanism 9, a connecting frame 10, a main frame 11, a guide plate 12, a multi-loop synchronous vibration rotary valve 13, a hydraulic steel pipe 14, a hydraulic rubber pipe 15, a vibration oil cylinder 18 and a two-mass hydraulic vibration system, and is characterized in that the two-mass hydraulic vibration system comprises two vibrators 2 and a vibration steel wheel 1,
the vibration steel wheel vibration generator comprises a vibration steel wheel (1), a vibrator (2), a steel cylinder (3), an end plate (4), a main shaft (5), a square flange (19), a main vibration spring (20), a balance spring (21), a vibrator body (22) and a guide groove (23);
the vibration steel wheel 1 comprises a steel cylinder 3, an end plate 4, a main shaft 5, a vibration bearing 16 and a bearing seat 17; two end plates 4 are arranged in the inner hole of the cylinder barrel, a main shaft 5 is arranged in the central hole of the cylinder barrel, and the two end plates are connected by a key; a group of vibration bearings 16 and a bearing seat 17 are arranged on the overhanging shaft sections at the two ends of the main shaft; the vibrator 2 is sleeved outside the bearing seat 17, and a gap is reserved between the vibrator and the bearing seat; a main vibration spring 20 and a balance spring 21 are vertically arranged between the vibrator 2 and the bearing seat 17.
The vibrator (2) includes: the vibration generator comprises a vibrator body (22), a square flange (19) and a guide groove (23); a square flange (19) is arranged at the top of the vibrator body (22) and is fixedly connected with the vibrator body (22) by bolts; the lower part of the vibrator body (22) is provided with a guide groove (23) which is fixedly connected with the vibrator body (22) by bolts.
The vibration oil cylinder (18) is arranged between the vibration steel wheel (1) and the vibrator (2), and a piston rod of the vibration oil cylinder (18) is connected with the square flange (19) and locked by a nut; the cylinder body of the vibration oil cylinder (18) is fixedly connected with the bearing seat (17) by bolts; a main vibration spring (20) and a balance spring (21) are vertically arranged between the vibrator (2) and the bearing seat (17).
The vibration-participating mass body of the two-mass body hydraulic vibration system comprises two vibrators and a vibration steel wheel, and the two vibrators are controlled by a multi-loop synchronous vibration rotary valve (13) to vibrate synchronously; the power element is two vibration oil cylinders; the energy storage elements are a main vibration spring and a balance spring.
As shown in fig. 3, the multi-loop synchronous vibration rotary valve comprises a valve core (13-1), a valve sleeve (13-2), a valve body (13-3), a front end cover (13-4) and a rear end cover (13-5); it is characterized in that the valve core (13-1) is arranged in the central hole of the valve sleeve (13-2); the valve core (13-1) and the valve sleeve (13-2) can slide and relatively rotate without clearance, and the valve core is driven to rotate by a motor; the valve sleeve is arranged in the central hole of the valve body and is connected with the valve body in an interference fit manner; the valve body (13-3) is provided with a high-pressure oil port (13-7) and two groups of four control ports (13-8), and the two ends of the two control ports are respectively plugged and sealed by a front end cover (13-4) and a rear end cover (13-5); the front end cover (13-4) is provided with a shaft hole for the outward extending shaft of the valve core (13-1) to extend out and seal; the rear end cover (13-5) is provided with a total oil return port (13-6), and the blade type multi-loop synchronous vibration rotary valve is used for the invention and needs to reserve two groups of four control ports (13-8) and one high-pressure oil port (13-7) on the valve body.
Further embodiments of the invention: the control ports (13-8) of the multi-loop synchronous vibration rotary valve (13) are communicated with the oil port of the vibration oil cylinder by using a hydraulic steel pipe (14) and a hydraulic rubber pipe (15) on two sides of the vibration steel wheel (1); then the high-pressure oil ports (13-17) and the main oil return ports (13-6) are communicated with a hydraulic pump to form a left valve-controlled oil cylinder type 'vibrating hydraulic loop' and a right valve-controlled oil cylinder type 'vibrating hydraulic loop'; when high-pressure oil is alternately supplied to two working cavities of the vibration oil cylinder (18) through the multi-loop synchronous vibration rotary valve (13), a piston rod and a cylinder body of the vibration oil cylinder (18) can simultaneously pull the vibrator (2) and the vibration steel wheel (1) to simultaneously generate vibration in opposite directions; in the vibration process, the kinetic energy generated by the vibrator (2) is transferred to the vibration steel wheel (1) through the main vibration spring (20) and the balance spring (21), so that the vibration steel wheel (1) can continuously vibrate; because the vibrating steel wheel (1) is always pressed on the compacted road surface, the vibrating steel wheel always vibrates together with the road surface, and continuously transmits the vibration energy to the compacted road surface, thereby generating better compaction effect; no matter how the vibration frequency and the vibration amplitude change, the vibration damping device cannot leave the road surface to generate a bounce phenomenon; when the output revolution of the motor is changed through the onboard controller to lead the valve core (13-1) to realize stepless speed change, the vibration frequency of the vibration oil cylinder (18) can be infinitely changed, and further the vibration steel wheel (1) can also infinitely change the vibration frequency, so that the vibration steel wheel can more fully play the role of vibration compaction.
A damper bearing (7) and a damper (6) are arranged on the outer side of the vibrator (2) on the left side extending shaft of the main shaft (5); the shock absorber (6) is connected with a main frame (11) through a connecting frame (10) so as to structurally support a machine body of the main machine of the directional hydraulic vibratory roller; a driving mechanism (9) is arranged in the connecting frame (10), and an output shaft of the driving mechanism (9) is connected with the main shaft (5) through an elastic coupling (8); the driving mechanism (9) is used for driving the vibrating steel wheel (1) to roll to pull the directional hydraulic vibrating road roller to walk.
The guide plates (12) are respectively arranged on the connecting frames (10) at the two sides of the vibrating steel wheel (1), the front ends of the guide plates (12) are inserted into the guide grooves (23) and can slide relative to each other, and the up-and-down movement of the vibrator (2) is not influenced when the vibrator vibrates; when the vibrating steel wheel (1) rolls, the guide plate (12) can prevent the vibrator (2) from rotating along with the vibrating steel wheel and can only vibrate in the vertical direction.
Description of the drawings: the multi-loop synchronous vibration rotary valve can adopt Chinese patent No. 202123083602.2, which is named as 'a vane type multi-loop synchronous vibration rotary valve'.
The other necessary parts of the roller of the invention are the same as those of the existing rollers.
Claims (5)
1. The utility model provides a directional hydraulic pressure vibrated roller of electrodeless frequency conversion, includes shock absorber, shock absorber bearing, elastic coupling, actuating mechanism, link, main frame, deflector, multiloop synchronous vibration rotary valve, hydraulic steel pipe, hydraulic pressure rubber tube, vibration bearing, vibrating cylinder, two plastid hydraulic vibration systems, characterized by two plastid hydraulic vibration systems include two oscillators and a vibration steel wheel, the vibration steel wheel includes: the vibration type hydraulic cylinder comprises a steel cylinder, end plates, a main shaft, a bearing seat and a vibration bearing, wherein two end plates are arranged in an inner hole of the cylinder, and the main shaft is arranged in a central hole of each end plate; a group of vibration bearings and a bearing seat are arranged on the overhanging shaft sections at the two ends of the main shaft; a vibrator is sleeved outside the bearing seat; the vibrator includes: the device comprises a vibrator body, a square flange and a guide groove; a square flange is arranged at the top of the vibrator body, and a guide groove is arranged at the lower part of the vibrator body; the vibration oil cylinder is arranged between the vibration steel wheel and the vibrator, and a piston rod of the vibration oil cylinder is connected with the square flange; the cylinder body of the vibration oil cylinder is fixedly connected with the bearing seat; a main vibration spring and a balance spring are arranged between the vibrators and the bearing seat in the vertical direction, and the two vibrators are controlled by the multi-loop synchronous vibration rotary valve to vibrate synchronously.
2. The electrodeless variable frequency directional hydraulic vibratory roller as defined in claim 1, wherein the multi-loop synchronous vibratory rotary valve comprises a valve core, a valve sleeve, a valve body, a front end cover and a rear end cover; it is characterized in that the valve core is arranged in the central hole of the valve sleeve; the valve core and the valve sleeve can slide and relatively rotate without clearance, and the valve core is driven to rotate by a motor; the valve sleeve is arranged in the central hole of the valve body and is connected with the valve body in an interference fit manner; two ends of the valve body are respectively sealed by a front end cover and a rear end cover; the front end cover is provided with a shaft hole for the extension shaft of the valve core to extend out and seal; the rear end cover is provided with a total oil return port, and the blade type multi-loop synchronous vibration rotary valve is used for the invention and only needs to reserve two groups of four control ports and one high-pressure oil port on the valve body.
3. The stepless frequency conversion directional hydraulic vibratory roller according to claim 1, characterized in that both sides of the vibratory steel wheel use hydraulic steel pipes and hydraulic rubber pipes to communicate the control ports of the multi-loop synchronous vibratory swivel valve with two oil ports of a vibratory cylinder, and the high pressure oil port and the total oil return port are communicated with a hydraulic pump; when high-pressure oil is alternately supplied to the two working cavities of the vibration oil cylinder through the multi-loop synchronous vibration rotary valve, a piston rod and a cylinder body of the vibration oil cylinder simultaneously generate vibration displacement in opposite directions, and further the vibrator and the vibration steel wheel are excited to generate synchronous vibration; in the vibration process, the kinetic energy generated by the vibration of the vibrator is transferred to the vibration steel wheel through the main vibration spring and the balance spring; the vibrating steel wheel can continuously vibrate and continuously transmit vibration energy to the compacted road surface; the vibrating steel wheel is always pressed on the compacted road surface and always vibrates with the road surface; when the output revolution of the motor is changed through the onboard controller to enable the valve core of the multi-loop synchronous vibration rotary valve to realize stepless speed change, the vibration frequency of the vibration oil cylinder can be changed steplessly, and the vibration frequency of the vibration steel wheel is also changed steplessly.
4. The stepless frequency conversion directional hydraulic vibration road roller according to claim 1, characterized in that a vibration damper bearing and a vibration damper are arranged on the outer side of a vibrator on a projecting shaft on the left side of a main shaft; the vibration absorber is connected with the main frame through the connecting frame, the driving mechanism is arranged in the connecting frame, an output shaft of the driving mechanism is connected with the main shaft through the elastic coupling, and the vibration steel wheel is driven to roll to pull the directional hydraulic vibratory roller to walk.
5. The stepless frequency conversion directional hydraulic vibration road roller as claimed in claim 1, characterized in that a guide plate is respectively mounted on the connecting frame at both sides of the vibration steel wheel, the front end of the guide plate is inserted into the guide groove, the guide plate and the guide groove can slide relatively, and the vibrator does not influence the up-and-down movement of the vibrator when vibrating; when the vibrating steel wheel rolls, the guide plate can prevent the vibrator from rotating along with the vibrating steel wheel and can only vibrate in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210907785.5A CN115369720A (en) | 2022-07-29 | 2022-07-29 | Directional hydraulic pressure vibrated roller of electrodeless frequency conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210907785.5A CN115369720A (en) | 2022-07-29 | 2022-07-29 | Directional hydraulic pressure vibrated roller of electrodeless frequency conversion |
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| Publication Number | Publication Date |
|---|---|
| CN115369720A true CN115369720A (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210907785.5A Pending CN115369720A (en) | 2022-07-29 | 2022-07-29 | Directional hydraulic pressure vibrated roller of electrodeless frequency conversion |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332295A (en) * | 2001-04-30 | 2002-01-23 | 许步勤 | Vibrating wheel for vibrating roller |
| US20030223817A1 (en) * | 2002-03-07 | 2003-12-04 | Richard Stelbrink | Compaction roller |
| CN103669178A (en) * | 2013-12-05 | 2014-03-26 | 柳工无锡路面机械有限公司 | Open type vibration electric proportional control system of road roller |
| CN203782532U (en) * | 2014-04-29 | 2014-08-20 | 山推工程机械股份有限公司 | Stepless frequency adjustment vibration hydraulic system for vibration roller |
| CN110258262A (en) * | 2019-06-26 | 2019-09-20 | 山推工程机械股份有限公司 | A kind of vibrated roller, vibrated roller control method |
| WO2022099992A1 (en) * | 2020-11-13 | 2022-05-19 | 徐工集团工程机械股份有限公司道路机械分公司 | Variable amplitude control method, device and system for vibratory roller, and road roller |
| CN216767918U (en) * | 2021-12-09 | 2022-06-17 | 许慧保 | Vane type multi-loop synchronous vibration rotary valve |
-
2022
- 2022-07-29 CN CN202210907785.5A patent/CN115369720A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332295A (en) * | 2001-04-30 | 2002-01-23 | 许步勤 | Vibrating wheel for vibrating roller |
| US20030223817A1 (en) * | 2002-03-07 | 2003-12-04 | Richard Stelbrink | Compaction roller |
| CN103669178A (en) * | 2013-12-05 | 2014-03-26 | 柳工无锡路面机械有限公司 | Open type vibration electric proportional control system of road roller |
| CN203782532U (en) * | 2014-04-29 | 2014-08-20 | 山推工程机械股份有限公司 | Stepless frequency adjustment vibration hydraulic system for vibration roller |
| CN110258262A (en) * | 2019-06-26 | 2019-09-20 | 山推工程机械股份有限公司 | A kind of vibrated roller, vibrated roller control method |
| WO2022099992A1 (en) * | 2020-11-13 | 2022-05-19 | 徐工集团工程机械股份有限公司道路机械分公司 | Variable amplitude control method, device and system for vibratory roller, and road roller |
| CN216767918U (en) * | 2021-12-09 | 2022-06-17 | 许慧保 | Vane type multi-loop synchronous vibration rotary valve |
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