CN109341925B - Snowplow torque detection device and magnetic attraction loading type torque detection method thereof - Google Patents
Snowplow torque detection device and magnetic attraction loading type torque detection method thereof Download PDFInfo
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- CN109341925B CN109341925B CN201811445039.9A CN201811445039A CN109341925B CN 109341925 B CN109341925 B CN 109341925B CN 201811445039 A CN201811445039 A CN 201811445039A CN 109341925 B CN109341925 B CN 109341925B
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- snowplow
- cylinder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0061—Force sensors associated with industrial machines or actuators
Abstract
The invention discloses a snowplow torque detection device and a magnetic attraction loading type torque detection method thereof. The magnetic powder lifting device comprises a main support, a first belt seat bearing, a first roller shaft, a second belt seat bearing, a third belt seat bearing, a second roller shaft, a fourth belt seat bearing, a first coupler, a torque sensor, a second coupler, a magnetic powder brake, a lifting plate, a first guide rail, a first lifting cylinder, an electromagnet, a loading cylinder, a second lifting cylinder, a second guide rail and an auxiliary support. According to the invention, the snow sweeper is sucked and tensioned from below through the electromagnet and the loading cylinder, and meanwhile, the torque detection of the snow sweeper is realized by matching with the magnetic powder brake and the torque sensor. After the detection is completed, the lifting mechanism jacks up the snowplow so as to be pushed out by a worker. The invention solves the problems of huge volume, complex structure and the like caused by loading of heavy objects in the existing torque detection equipment; in addition, the detection device has the advantages of high detection efficiency, good safety, low cost, low requirements on the technical level of workers, convenience in improvement of the existing detection line and the like.
Description
Technical Field
The present invention relates to a torque detection device for a snowplow, and more particularly to a torque detection device for a wheeled hand-held snowplow driven by an internal combustion engine.
Background
Snow is commonly reduced in winter in northern areas of China, and the snow greatly affects transportation, travel and the like, and road mileage required for snow removal in China is nearly half of that in China. With the rapid increase of traffic volume, the influence of snowfall on traffic in winter has become a non-negligible problem. Because of the inefficiency of manual snow, the wheeled hand snowplow driven by internal combustion engines has found widespread use. In view of the severe operating conditions of the snowplow, in order to ensure that the snowplow is able to travel on rough snow surfaces, measurements of output torque are required when the snowplow is off-line.
The torque detection of the current snowplow is generally carried out manually, and the detection mode can only carry out qualitative detection on the output torque of the snowplow, cannot generate a standard detection report, has low efficiency, and is difficult to meet the related requirements of lean production and export audit. Some manufacturers adopt automatic detection equipment to complete torque detection, but the equipment often uses a weight to combine with a pulley mechanism to realize loading, has a complex structure, is huge, and is unfavorable for improving the existing production line. At present, a snowplow torque detection device and a magnetic attraction loading type torque detection method are needed to solve the problems in reality.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a snowplow torque detection device and a magnetic attraction loading type torque detection method thereof.
The snowplow torque detection device comprises a main bracket, a first belt seat bearing, a first roll shaft, a second belt seat bearing, a third belt seat bearing, a second roll shaft, a fourth belt seat bearing, a first coupling, a torque sensor, a second coupling, a magnetic powder brake, a lifting plate, a first guide rail, a first lifting cylinder, an electromagnet, a loading cylinder, a second lifting cylinder, a second guide rail and an auxiliary bracket; the two ends of the first roll shaft are respectively connected to the main support through a first bearing with a seat and a second bearing with a seat, the two ends of the second roll shaft are respectively connected to the main support through a third bearing with a seat and a fourth bearing with a seat, the torque sensor and the magnetic powder brake are respectively fixed on the main support and coaxial with the second roll shaft, one end of the torque sensor is connected with the second roll shaft through a first coupler, the other end of the torque sensor is connected with the magnetic powder brake through a second coupler, a lifting plate is arranged between the first roll shaft and the second roll shaft, one end of the lifting plate is connected with the main support through a first guide rail, the other end of the lifting plate is connected with the main support through a second guide rail, the auxiliary support is fixed inside the main support, the loading cylinder is positioned right below the middle position of the lifting plate and is fixed on the auxiliary support, the electromagnet is connected with the piston end of the loading cylinder, a first lifting cylinder is arranged on one side of the lifting plate and the auxiliary support, the piston end of the first lifting cylinder body is connected with the auxiliary support, the first lifting cylinder body end of the lifting cylinder is connected with the auxiliary support, a second lifting plate is arranged on one side of the lifting plate and the piston end of the auxiliary cylinder body, the second lifting plate is connected with the second guide rail, and the second lifting plate is connected with the piston end of the auxiliary cylinder.
An opening is arranged in the middle of the lifting plate of the snow sweeper torque detection device, and the size of the opening can ensure that the piston end of the loading cylinder and the electromagnet smoothly pass through.
The loading cylinder of the snowplow torque detection device is a double-shaft or triaxial cylinder.
The magnetic attraction loading type torque detection method of the snowplow torque detection device comprises the following steps:
1) Resetting the torque detection device of the snowplow, and ensuring that the first lifting cylinder, the second lifting cylinder and the loading cylinder are in a retracted state, wherein the electromagnet and the magnetic powder brake are not electrified;
2) Pushing the snowplow to be detected onto a snowplow torque detection device, and ensuring that a tire of the snowplow is positioned between a first roll shaft and a second roll shaft;
3) The loading cylinder is ejected out to drive an electromagnet fixed at the end part of a piston of the loading cylinder to move upwards and push against a metal shell at the bottom end of the snowplow to be tested;
4) Electrifying the electromagnet, and adsorbing the snowplow to be tested on the electromagnet under the action of magnetic force;
5) The loading cylinder contracts, the electromagnet moves downwards, and the snowplow to be tested is tensioned on the first roll shaft and the second roll shaft;
6) Starting a snowplow to be tested, and adjusting an accelerator and a speed changer to a working condition to be tested;
7) Switching on a power supply of the magnetic powder brake, gradually increasing the braking torque of the magnetic powder brake, and recording a torque value in real time by a torque sensor in the step;
8) After the torque recording is finished, closing the snowplow to be detected, simultaneously loading the cylinder for ejection, and disconnecting the electromagnet (15) and the magnetic powder brake;
9) The loading cylinder is retracted, and the first lifting cylinder and the second lifting cylinder are ejected at the same time to drive the lifting plate to lift up so as to jack up the snowplow;
10 After the snowplow is pushed away from the detection equipment, the first lifting cylinder and the second lifting cylinder are retracted, and the equipment is reset;
11 Repeating the steps 2) -10) until the rotation speed detection of all snowplow is completed.
By using the invention, the automatic torque detection of the snowplow can be realized, the detection efficiency is high, and the operation is simple. Meanwhile, due to the adoption of the magnetic loading method, the problems of complex structure, huge mention and the like existing in the existing equipment loaded by a weight and pulley mechanism are solved. Meanwhile, the ejection device is additionally arranged, so that the snowplow can be ejected from the front of the two roll shafts after the detection of the snowplow is completed, the smooth ejection of the snowplow is ensured, and the labor intensity of workers is reduced. The magnetic powder brake realizes the large-scale stepless regulation of braking torque and has wide application range. In addition, the invention has the advantages of compact structure, good reliability, convenience for the transformation of the existing detection line and the like.
Drawings
FIG. 1 is a schematic illustration of a snowplow torque detection device;
FIG. 2 is a schematic diagram of a lower portion of a snowplow detection device;
FIG. 3 is a schematic diagram of a magnetic loading and ejection mechanism of a snowplow detection device;
FIG. 4 is a schematic view of a snowplow detection device reset state (first roller hidden);
FIG. 5 is a schematic diagram of the operation of the magnetic attraction loading mechanism (with the first roller hidden) of the snowplow detection device;
FIG. 6 is a schematic diagram of the operation of the ejector mechanism (concealing the first roller) of the snowplow detection device;
FIG. 7 is a schematic diagram of the magnetic attraction loading mechanism of the snowplow detection device (including a snowplow, concealing the second roller);
FIG. 8 is a schematic diagram of a snowplow detection device (including a snowplow);
fig. 9 is a schematic diagram of a practical application of the snowplow detection device (including a snowplow and a floor).
In the figure, a main bracket 1, a first pedestal bearing 2, a first roll shaft 3, a second pedestal bearing 4, a third pedestal bearing 5, a second roll shaft 6, a fourth pedestal bearing 7, a first coupling 8, a torque sensor 9, a second coupling 10, a magnetic powder brake 11, a lifting plate 12, a first guide rail 13, a first lifting cylinder 14, an electromagnet 15, a loading cylinder 16, a second lifting cylinder 17, a second guide rail 18, and a sub bracket 19.
Detailed Description
As shown in fig. 1 and 2, the torque detection device of the snowplow comprises a main bracket 1, a first belt seat bearing 2, a first roll shaft 3, a second belt seat bearing 4, a third belt seat bearing 5, a second roll shaft 6, a fourth belt seat bearing 7, a first coupling 8, a torque sensor 9, a second coupling 10, a magnetic powder brake 11, a lifting plate 12, a first guide rail 13, a first lifting cylinder 14, an electromagnet 15, a loading cylinder 16, a second lifting cylinder 17, a second guide rail 18 and a secondary bracket 19; the two ends of a first roll shaft 3 are respectively connected to a main support 1 through a first bearing 2 with a seat and a second bearing 4 with a seat, the two ends of a second roll shaft 6 are respectively connected to the main support 1 through a third bearing 5 with a seat and a fourth bearing 7 with a seat, a torque sensor 9 and a magnetic powder brake 11 are respectively fixed on the main support 1 and coaxial with the second roll shaft 6, one end of the torque sensor 9 is connected with the second roll shaft 6 through a first coupling 8, the other end of the torque sensor 9 is connected with the magnetic powder brake 11 through a second coupling 10, a lifting plate 12 is arranged between the first roll shaft 3 and the second roll shaft 6, one end of the lifting plate 12 is connected with the main support 1 through a first guide rail 13, the other end of the lifting plate 12 is connected with the main support 1 through a second guide rail 18, a sub-support 19 is fixed in the main support 1, a loading cylinder 16 is positioned right below the middle position of the lifting plate 12 and is fixed on the sub-support 19, an electromagnet 15 is connected with the piston end of the loading cylinder 16, a first lifting plate 14 is arranged on one side of the sub-support 19 close to the first guide rail 13, a first lifting plate 14 is connected with the sub-cylinder body 19, a second piston end of the sub-support 19 is connected with the sub-support 19, and a second piston end 17 is connected with the sub-support 19, and a second piston end of the sub-cylinder 17 is connected with the sub-support 17.
As shown in fig. 1 and 3, an opening is provided in the middle of the lifting plate 12 of the snowplow torque detecting device, and the opening is sized to ensure that the piston end of the loading cylinder 16 and the electromagnet 15 pass through smoothly.
As shown in fig. 2 and 3, the loading cylinder 16 of the snowplow torque detecting device is a double-shaft or triaxial cylinder, and in order to ensure that the electromagnet 15 is adsorbed normally, it is required to ensure that the piston of the loading cylinder 16 cannot rotate during the working process; the single-shaft cylinder cannot prevent rotation and needs to be matched with a guide rail to realize the function, so that the system volume is remarkably increased, and the middle opening of the lifting plate 12 is increased, so that the strength is influenced; therefore, a high-integration biaxial or triaxial cylinder is selected as the loading cylinder 16, thereby avoiding the occurrence of the above-described problems.
The magnetic attraction loading type torque detection method of the snowplow torque detection device comprises the following steps:
1) As shown in fig. 1 and 4, resetting the snowplow torque detection device ensures that the first lifting cylinder 14, the second lifting cylinder 17 and the loading cylinder 16 are in a retracted state, and the electromagnet 15 and the magnetic powder brake 11 are not electrified;
2) As shown in fig. 8, the snowplow to be detected is pushed up to the snowplow torque detection device, and the tires of the snowplow are ensured to be positioned between the first roll shaft 3 and the second roll shaft 6, when the snowplow to be detected is pushed in, the direction from the second roll shaft 6 to the first roll shaft 3 is adopted, and the first roll shaft 3 always keeps idling, so that the snowplow can be prevented from being punched out due to misoperation;
3) As shown in fig. 5 and 7, the loading cylinder 16 is ejected out to drive the electromagnet 15 fixed at the piston end of the loading cylinder 16 to move upwards and push against the bottom metal shell of the snowplow to be detected;
4) Electrifying the electromagnet 15, and adsorbing the snowplow to be tested on the electromagnet 15 under the action of magnetic force;
5) The loading cylinder 16 is contracted, the electromagnet 15 moves downwards, the snowplow to be tested is tensioned on the first roll shaft 3 and the second roll shaft 6, and the step is completed to load the snowplow to be tested, so that the maximum friction force between the tires of the snowplow and the first roll shaft 3 and the second roll shaft 6 is increased, and the problem of tire slipping in the measurement process is avoided;
6) Starting a snowplow to be tested, and adjusting an accelerator and a speed changer to a working condition to be tested;
7) Switching on the power supply of the magnetic powder brake 11, gradually increasing the braking torque of the magnetic powder brake 11, and recording the torque value in real time by the torque sensor 9 in the step;
8) After the torque recording is finished, closing the snowplow to be detected, ejecting the loading cylinder 16, and disconnecting the power supply of the electromagnet 15 and the magnetic powder brake 11; the electromagnet power off action is performed after the loading cylinder 16 is completely ejected, so that system impact caused by instant unloading is avoided;
9) As shown in fig. 6, the loading cylinder 16 is retracted, and the first lifting cylinder 16 and the second lifting cylinder 17 are ejected simultaneously to drive the lifting plate 12 to lift up so as to lift up the snowplow; the gap between the first roll shaft 3 and the second roll shaft 6 causes that the snowplow is difficult to directly push out, so that after the measurement is finished, the tire of the snowplow is jacked up to the height of the top of the first roll shaft 3 and the top of the second roll shaft 6 through the lifting plate (12), thereby facilitating the worker to push out the snowplow from the equipment;
10 As shown in fig. 4, after the snowplow is pushed away from the detection device, the first lift cylinder 16 and the second lift cylinder 17 are retracted, and the device is reset;
11 Repeating the steps 2) -10) until the rotation speed detection of all snowplow is completed.
As shown in fig. 9, in order to facilitate pushing in and pushing out of the snowplow to be tested, the snowplow torque detection device may be disposed below the floor, which is open in the area of the first roller 3 and the second roller 6 for detection of the snowplow.
Claims (3)
1. The torque detection device of the snowplow is characterized by comprising a main bracket (1), a first belt seat bearing (2), a first roll shaft (3), a second belt seat bearing (4), a third belt seat bearing (5), a second roll shaft (6), a fourth belt seat bearing (7), a first coupler (8), a torque sensor (9), a second coupler (10), a magnetic powder brake (11), a lifting plate (12), a first guide rail (13), a first lifting cylinder (14), an electromagnet (15), a loading cylinder (16), a second lifting cylinder (17), a second guide rail (18) and a secondary bracket (19);
the two ends of the first roll shaft (3) are respectively connected to the main support (1) through a first belt seat bearing (2) and a second belt seat bearing (4), the two ends of the second roll shaft (6) are respectively connected to the main support (1) through a third belt seat bearing (5) and a fourth belt seat bearing (7), a torque sensor (9) and a magnetic powder brake (11) are respectively fixed on the main support (1) and coaxial with the second roll shaft (6), one end of the torque sensor (9) is connected with the second roll shaft (6) through a first coupling (8), the other end of the torque sensor (9) is connected with the magnetic powder brake (11) through a second coupling (10),
a lifting plate (12) is arranged between the first roll shaft (3) and the second roll shaft (6), one end of the lifting plate (12) is connected with the main support (1) through a first guide rail (13), the other end of the lifting plate (12) is connected with the main support (1) through a second guide rail (18), an auxiliary support (19) is fixed inside the main support (1), a loading cylinder (16) is positioned right below the middle position of the lifting plate (12) and is fixed on the auxiliary support (19), an electromagnet (15) is connected with the piston end of the loading cylinder (16), a first lifting cylinder (14) is arranged between the lifting plate (12) and the auxiliary support (19) and close to one side of the first guide rail (13), the cylinder end of the first lifting cylinder (14) is connected with the auxiliary support (19), the piston end of the first lifting cylinder (14) is connected with the lifting plate (12), a second lifting cylinder (17) is arranged on one side, close to the second guide rail (18), of the second lifting cylinder (17) end is connected with the auxiliary support (19), and the second lifting cylinder (17) is connected with the piston end of the second lifting cylinder (12);
an opening is arranged in the middle of the lifting plate (12), and the size of the opening can ensure that the piston end of the loading cylinder (16) and the electromagnet (15) smoothly pass through.
2. The snowplow torque sensing device of claim 1, wherein the loading cylinder (16) is a dual-axis or tri-axis cylinder.
3. A method of magnetically loaded torque detection for a snowplow torque detection device according to claim 1, comprising the steps of:
1) Resetting the snowplow torque detection device to ensure that the first lifting cylinder (14), the second lifting cylinder (17) and the loading cylinder (16) are in a retracted state, and the electromagnet (15) and the magnetic powder brake (11) are not electrified;
2) Pushing the snowplow to be detected onto a snowplow torque detection device, and ensuring that a tire of the snowplow is positioned between a first roll shaft (3) and a second roll shaft (6);
3) The loading cylinder (16) is ejected out to drive an electromagnet (15) fixed at the end part of a piston of the loading cylinder (16) to move upwards and push against a metal shell at the bottom end of the snowplow to be tested;
4) Electrifying the electromagnet (15), wherein the snowplow to be detected is adsorbed on the electromagnet (15) under the action of magnetic force;
5) The loading cylinder (16) is contracted, the electromagnet (15) moves downwards, and the snowplow to be tested is tensioned on the first roll shaft (3) and the second roll shaft (6);
6) Starting a snowplow to be tested, and adjusting an accelerator and a speed changer to a working condition to be tested;
7) Switching on a power supply of the magnetic powder brake (11) and gradually increasing the braking torque of the magnetic powder brake (11), wherein a torque sensor (9) records a torque value in real time in the step;
8) After the torque is recorded, closing the snowplow to be tested, ejecting the loading cylinder (16), and disconnecting the power supply of the electromagnet (15) and the magnetic powder brake (11);
9) The loading cylinder (16) is retracted, and the first lifting cylinder (16) and the second lifting cylinder (17) are ejected at the same time to drive the lifting plate (12) to lift up so as to jack up the snowplow;
10 After the snowplow is pushed away from the detection equipment, the first lifting cylinder (16) and the second lifting cylinder (17) are retracted, and the equipment is reset;
11 Repeating the steps 2) -10) until the rotation speed detection of all snowplow is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445039.9A CN109341925B (en) | 2018-11-29 | 2018-11-29 | Snowplow torque detection device and magnetic attraction loading type torque detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811445039.9A CN109341925B (en) | 2018-11-29 | 2018-11-29 | Snowplow torque detection device and magnetic attraction loading type torque detection method thereof |
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| CN109341925A CN109341925A (en) | 2019-02-15 |
| CN109341925B true CN109341925B (en) | 2023-08-25 |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3017426U (en) * | 1995-04-26 | 1995-10-31 | 株式会社イヤサカ | Fan load type power absorber |
| CN101233404A (en) * | 2005-09-26 | 2008-07-30 | 国际计测器株式会社 | Traveling test device |
| CN102150029A (en) * | 2008-09-08 | 2011-08-10 | 宝克E.博特机械公司 | Vehicle testing assembly |
| CN102888810A (en) * | 2011-07-19 | 2013-01-23 | 比伯拉赫利勃海尔-部件股份有限公司 | Self-propelled surface milling cutter |
| CN105067171A (en) * | 2015-07-16 | 2015-11-18 | 中国矿业大学 | Inertia flywheel anti-rotation apparatus |
| CN204881948U (en) * | 2015-08-18 | 2015-12-16 | 长春轨道客车装备有限责任公司 | Electromagnetism track brake electromagnetic attraction testing platform |
| CN105277381A (en) * | 2015-09-28 | 2016-01-27 | 中国矿业大学 | Miniature mobile equipment mechanical property comprehensive test platform |
| CN105917133A (en) * | 2013-12-06 | 2016-08-31 | 卢卡斯汽车股份有限公司 | Motor vehicle brake which can be activated electromechanically and hydraulically and has optional self-locking |
| CN106428282A (en) * | 2016-11-30 | 2017-02-22 | 西南大学 | Wall-climbing trolley for spraying paint/glue |
| CN107560872A (en) * | 2017-09-06 | 2018-01-09 | 深圳市安车检测股份有限公司 | Tractor combined test stand and tractor method for comprehensive detection |
| CN107764568A (en) * | 2017-11-16 | 2018-03-06 | 成都益佳平科技有限公司 | A kind of Vehicle Chassis Dynamic Tests detecting system |
| CN108613785A (en) * | 2018-07-11 | 2018-10-02 | 河南理工大学 | A kind of rolling vibration experiment platform |
| CN108732375A (en) * | 2018-04-20 | 2018-11-02 | 浙江师范大学 | A kind of snowplough engine speed detection device and its detection method |
| CN208937229U (en) * | 2018-11-29 | 2019-06-04 | 浙江师范大学 | A kind of snowplough torque master |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6840098B2 (en) * | 2003-01-27 | 2005-01-11 | Donald R. Halliday | Roadway friction tester and method |
| US7509847B2 (en) * | 2006-01-11 | 2009-03-31 | Halliday Donald R | Roadway grip tester and method |
-
2018
- 2018-11-29 CN CN201811445039.9A patent/CN109341925B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3017426U (en) * | 1995-04-26 | 1995-10-31 | 株式会社イヤサカ | Fan load type power absorber |
| CN101233404A (en) * | 2005-09-26 | 2008-07-30 | 国际计测器株式会社 | Traveling test device |
| CN102150029A (en) * | 2008-09-08 | 2011-08-10 | 宝克E.博特机械公司 | Vehicle testing assembly |
| CN102888810A (en) * | 2011-07-19 | 2013-01-23 | 比伯拉赫利勃海尔-部件股份有限公司 | Self-propelled surface milling cutter |
| CN105917133A (en) * | 2013-12-06 | 2016-08-31 | 卢卡斯汽车股份有限公司 | Motor vehicle brake which can be activated electromechanically and hydraulically and has optional self-locking |
| CN105067171A (en) * | 2015-07-16 | 2015-11-18 | 中国矿业大学 | Inertia flywheel anti-rotation apparatus |
| CN204881948U (en) * | 2015-08-18 | 2015-12-16 | 长春轨道客车装备有限责任公司 | Electromagnetism track brake electromagnetic attraction testing platform |
| CN105277381A (en) * | 2015-09-28 | 2016-01-27 | 中国矿业大学 | Miniature mobile equipment mechanical property comprehensive test platform |
| CN106428282A (en) * | 2016-11-30 | 2017-02-22 | 西南大学 | Wall-climbing trolley for spraying paint/glue |
| CN107560872A (en) * | 2017-09-06 | 2018-01-09 | 深圳市安车检测股份有限公司 | Tractor combined test stand and tractor method for comprehensive detection |
| CN107764568A (en) * | 2017-11-16 | 2018-03-06 | 成都益佳平科技有限公司 | A kind of Vehicle Chassis Dynamic Tests detecting system |
| CN108732375A (en) * | 2018-04-20 | 2018-11-02 | 浙江师范大学 | A kind of snowplough engine speed detection device and its detection method |
| CN108613785A (en) * | 2018-07-11 | 2018-10-02 | 河南理工大学 | A kind of rolling vibration experiment platform |
| CN208937229U (en) * | 2018-11-29 | 2019-06-04 | 浙江师范大学 | A kind of snowplough torque master |
Non-Patent Citations (1)
| Title |
|---|
| 新型多功能除雪车的设计;于坤洋;田甜;王志;;工程机械(第03期);全文 * |
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