CN204249714U - Lead screw Self-locking type vehicle wheel diameter changeable mechanism - Google Patents
Lead screw Self-locking type vehicle wheel diameter changeable mechanism Download PDFInfo
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- CN204249714U CN204249714U CN201420675503.4U CN201420675503U CN204249714U CN 204249714 U CN204249714 U CN 204249714U CN 201420675503 U CN201420675503 U CN 201420675503U CN 204249714 U CN204249714 U CN 204249714U
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Abstract
The utility model discloses a kind of lead screw Self-locking type vehicle wheel diameter changeable mechanism, comprise walking stay bearing plate, guide rail plectane, pipe link, feed screw nut, leading screw, motor etc., it is rotated by dynamic driven by motor leading screw, thus drives feed screw nut to move.Feed screw nut drives walking stay bearing plate to move along radius of wheel direction by pipe link, thus it is variable to realize wheel diameter, improve the crossing ability of vehicle on different road surface, strengthen the obstacle climbing ability of vehicle, stability and anti-roll capability, there is good actual application value.
Description
Technical field
The utility model relates to a kind of traveling gear, relates generally to a kind of lead screw Self-locking type vehicle wheel diameter changeable mechanism.
Background technology
At present, due to the needs in the fields such as scientific research investigation, military rescue, space exploration, improve the crossing ability of vehicle, ensure that vehicle where shape in office has cross-country traveling ability very necessary.The chassis of vehicle only raises by existing technology, and wheel diameter is increased to improve the crossing ability on bad road surface, this can cause vehicle's center of gravity to raise, and causes vehicle handling stability to be deteriorated, and the larger wheel of diameter is also unsuitable for running at high speed in good road surface.
Variable-diameter wheel is a kind of solution preferably.Make wheel diameter stepless variable within the specific limits by motor-driven physical construction, thus adapt to different landform and user demand.When running under Different Ground environment, by the change in control wheel footpath, diameter-variable wheel can have wheel rim and without wheel flange wheel between change.As on soft terrain, diameter-variable wheel is open-shaped, becomes without wheel flange wheel, can improve crossing ability, reduces rolling resistance, increases propulsive effort; On hard ground, diameter-variable wheel, in closing up shape, becomes and has wheel flange wheel, can improve ride comfort and moving velocity.By changing wheel equivalent redius, can vehicle ground clearance be regulated, meet different driving conditions, service conditions to the requirement of ground Clearance.By adjusting the equivalent redius of four wheels, can adjust body gesture, improving obstacle climbing ability and the anti-roll capability of vehicle, and can provide stable workplatform for mobile unit, the conversion under different operating condition adopts the mode automatically controlled.
Utility model content
The utility model proposes a kind of lead screw Self-locking type vehicle wheel diameter changeable mechanism, this mechanism drives leading screw to rotate by motor, feed screw nut is moved along motor shaft direction, feed screw nut is moved along radius of wheel direction with walking stay bearing plate by pipe link, thus it is variable to realize wheel diameter.Variable by wheel diameter, can improve the crossing ability of vehicle on different road surface greatly, strengthens the obstacle climbing ability of vehicle, stability and anti-roll capability.
For achieving the above object, the technical solution of the utility model is:
Lead screw Self-locking type vehicle wheel diameter changeable mechanism, comprises walking stay bearing plate, guide rail plectane, pipe link, feed screw nut, leading screw, motor etc., wherein:
Motor is connected firmly on vehicle frame by elastic support.Motor is connected firmly by motor shaft and leading screw.Feed screw nut is connected by Acme thread with leading screw, and feed screw nut can move along the direction of leading screw.Feed screw nut is connected with several pipe links by revolute pair.Pipe link is connected with walking stay bearing plate respectively by revolute pair.These several walking stay bearing plate and pipe link be uniformly distributed all in a circumferential direction.Walking stay bearing plate forms moving sets by the interior guide rail of guide rail plectane and guide rail plectane.Guide rail plectane there are several circular holes, by this some holes bolt, guide rail plectane are connected with parts such as wheel hubs.So, what install is the mechanism that several pipe links, feed screw nut, leading screw, motor etc. change wheel diameter in the side (being outside relative to car load) of guide rail plectane, and what opposite side was installed is the parts such as drg, wheel hub, hub bearing, axle tube.
Motor adopts excitation electromotor.When needs change wheel diameter, by motor controller controls, the exciting current of motor is connected, the in running order drive leading screw of motor rotates, and leading screw is threaded connection and drives feed screw nut to move, and feed screw nut drives pipe link to move by revolute pair.Pipe link drives walking stay bearing plate to move along guide rail direction in guide rail plectane by revolute pair, thus changes the size of wheel diameter.
When stay bearing plate of walking is near wheel center, wheel diameter is minimum, can run at high speed on hard surfacing; When stay bearing plate of walking is away from wheel center, can travel on soft terrain.Because Collapsible structure can be made by the bar portion of stay bearing plate of walking, the length of leading screw also can lengthen to a certain extent, so the ratio of maximum wheel diameter and minimum wheel diameter in theory can be very large.In order to prevent guide rail in walking stay bearing plate getaway plectane, leading screw have individual boss away from motor side, be used for the stroke of restriction feed screw nut.When needs adjust body gesture, the motor respectively by four motor controller controls, four wheels realizes the rotation of different angles, thus adjusts respectively four wheel diameters, makes vehicle body be in optimum posture.
When normal vehicle operation, do not need to change wheel diameter, namely by motor controller controls, the exciting current of excitation electromotor is disconnected, and motor is in off working state, and now motor shaft is with vehicle wheel rotation, but can not produce electromagnetic resistance to wheel rolling.The power of ground effects on walking stay bearing plate can be delivered to feed screw nut by pipe link, by choosing of lead screw Acme thread angle, thus makes feed screw nut and leading screw produce self-locking.Thus wheel diameter is constant.Therefore after wheel diameter is selected, the size of wheel diameter can not change because of External Force Acting.
Compared with prior art, superior efficacy of the present utility model is: compared with traditional scheme, and sleeve mechanism is succinctly effective, effectively the rotation of motor is become the movement of feed screw nut by lead screw, thus drives the movement of walking stay bearing plate.Reach the object changing wheel diameter.By the Acme thread self-locking of lead screw, thus guarantee that the wheel diameter after changing can not change because of external force, guarantee that sleeve mechanism is reliable.Specifically be:
1) sleeve mechanism structure is simple, compact, can change the size of wheel diameter easily, to meet the demand of various different operating mode, is also convenient to transport when wheel is in minimum rating simultaneously.By driving leading screw to rotate, the change of four wheel diameters can be realized easily, by the self-locking of Acme thread, can ensure that wheel diameter is fixed on required size.
2) ground Clearance is adjustable, improves the obstacle climbing ability of vehicle, crossing ability, stability: by changing radius of wheel, the ground Clearance of adjustment vehicle, meets different driving conditions, service conditions to the requirement of ground Clearance.
3) body gesture is adjustable, the obstacle climbing ability of vehicle and anti-roll capability strengthen, and stable workplatform can be provided for mobile unit: by the adjustment respectively to four wheels diameter, can control body gesture, when climbing abrupt slope, prevent vehicle generation hypsokinesis, when Turning travel, prevent vehicle from rolling.
Accompanying drawing explanation
Fig. 1 lead screw Self-locking type vehicle wheel diameter changeable mechanism schematic diagram.
Attached number in the figure explanation
1---walking stay bearing plate; 2---guide rail plectane; 3---pipe link;
4---feed screw nut; 5---leading screw; 6---motor.
Detailed description of the invention
Be described further below in conjunction with accompanying drawing 1.
Lead screw Self-locking type vehicle wheel diameter changeable mechanism, comprises walking stay bearing plate 1, guide rail plectane 2, pipe link 3, feed screw nut 4, leading screw 5, motor 6 etc.
Four walking stay bearing plates and four pipe links are adopted to be uniformly distributed in a circumferential direction in present embodiment.Motor 6 is connected firmly on vehicle frame (not shown in FIG.) by elastic support.Motor 6 is connected firmly by motor shaft and leading screw 5.Feed screw nut 4 is connected by Acme thread with leading screw 5, and feed screw nut 4 can move along the direction of leading screw 5.Feed screw nut 4 is connected with four pipe links 3 by four revolute pairs.Four pipe links 3 are connected with four stay bearing plates 1 of walking respectively by four revolute pairs.Four walking stay bearing plates 1 form moving sets by the interior guide rail of guide rail plectane 2 and guide rail plectane 2.Guide rail plectane 2 there are four circular holes, by this some holes bolt, guide rail plectane 2 are connected with parts such as wheel hubs.What install is the mechanism that four pipe links 2, feed screw nut 4, leading screw 5, motor 6 etc. change wheel diameter in the side (being outside relative to car load) of guide rail plectane 2, and what opposite side was installed is the parts such as drg, wheel hub, hub bearing, axle tube (not shown in FIG.).
Motor 6 adopts excitation electromotor.When needs change wheel diameter, by motor controller controls, the exciting current of motor 6 is connected, and the in running order drive leading screw 5 of motor 6 rotates, leading screw 5 is threaded connection and drives feed screw nut to move, and feed screw nut 5 drives pipe link 3 to move by revolute pair.Pipe link 3 drives walking stay bearing plate 1 to move along guide rail direction in guide rail plectane 2 by revolute pair, thus changes the diameter of wheel.
When stay bearing plate 1 of walking is near wheel center, wheel diameter is minimum, can run at high speed on hard surfacing; When stay bearing plate 1 of walking is away from wheel center, can travel on soft terrain.Because Collapsible structure can be made by the bar portion of stay bearing plate 1 of walking, the length of leading screw 5 also can lengthen to a certain extent, so the ratio of maximum wheel diameter and minimum wheel diameter in theory can be very large.In order to prevent guide rail in walking stay bearing plate 1 getaway plectane 2, there is individual boss at leading screw 5 away from motor 6 end, being used for the stroke of restriction feed screw nut 4.When needs adjust body gesture, the motor 6 respectively by four motor controller controls, four wheels realizes the rotation of different angles, thus adjusts respectively four wheel diameters, makes vehicle body be in optimum posture.
When normal vehicle operation, do not need to change wheel diameter, namely by motor controller controls, the exciting current of excitation electromotor is disconnected, and motor 6 is in off working state, and now motor shaft is with vehicle wheel rotation, but can not produce electromagnetic resistance to wheel rolling.The power of ground effects on walking stay bearing plate 1 can be delivered to feed screw nut 4 by pipe link 3, by choosing of lead screw Acme thread angle, thus makes feed screw nut 4 and leading screw 5 produce self-locking.Thus wheel diameter is constant.Therefore after wheel diameter is selected, its size can not change because of External Force Acting.
Claims (2)
1. lead screw Self-locking type vehicle wheel diameter changeable mechanism, comprises walking stay bearing plate, guide rail plectane, pipe link, feed screw nut, leading screw, motor, it is characterized in that: motor connects firmly on vehicle frame by elastic support; Motor is connected firmly by motor shaft and leading screw; Feed screw nut is connected by Acme thread with leading screw, and feed screw nut can move along the direction of leading screw; Feed screw nut is connected with pipe link by revolute pair; Pipe link is connected with walking stay bearing plate by revolute pair, and walking stay bearing plate and pipe link are uniformly distributed all in a circumferential direction; Walking stay bearing plate forms moving sets by the interior guide rail of guide rail plectane and guide rail plectane.
2. lead screw Self-locking type vehicle wheel diameter changeable mechanism according to claim 1, is characterized in that: motor adopts excitation electromotor; When needs change wheel diameter, by motor controller controls, the exciting current of motor is connected, the in running order drive leading screw of motor rotates, and leading screw is threaded connection and drives feed screw nut to move, and feed screw nut drives pipe link to move by revolute pair; Pipe link drives walking stay bearing plate to move along guide rail direction in guide rail plectane by revolute pair, thus changes the size of wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675503.4U CN204249714U (en) | 2014-11-13 | 2014-11-13 | Lead screw Self-locking type vehicle wheel diameter changeable mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675503.4U CN204249714U (en) | 2014-11-13 | 2014-11-13 | Lead screw Self-locking type vehicle wheel diameter changeable mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204249714U true CN204249714U (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420675503.4U Expired - Fee Related CN204249714U (en) | 2014-11-13 | 2014-11-13 | Lead screw Self-locking type vehicle wheel diameter changeable mechanism |
Country Status (1)
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|---|---|
| CN (1) | CN204249714U (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104887417A (en) * | 2015-06-16 | 2015-09-09 | 北京理工大学 | Wheel diameter-adjustable mechanism suitable for electric wheelchair |
| CN105083351A (en) * | 2015-08-31 | 2015-11-25 | 国家电网公司 | Electrical safety equipment transport vehicle capable of surmounting obstacles |
| CN106004231A (en) * | 2016-06-07 | 2016-10-12 | 河南摩西机械制造有限公司 | Obstacle crossing wheel |
| CN108163096A (en) * | 2018-02-01 | 2018-06-15 | 裴小根 | A kind of wheel footpath can be with variant rescue robot |
| CN108184384A (en) * | 2018-02-11 | 2018-06-22 | 黑龙江省水田机械化研究所 | Seeder diameter is adjustable land wheel |
| CN108327459A (en) * | 2018-03-28 | 2018-07-27 | 华南理工大学 | It is a kind of can self-locking deformation wheel mechanism |
| CN108355276A (en) * | 2018-02-01 | 2018-08-03 | 裴小根 | A kind of remote control pointing fire-extinguishing robot |
| CN108381507A (en) * | 2018-02-01 | 2018-08-10 | 裴小根 | A kind of rescue robot equipped with rescue mechanical arm |
| CN108381557A (en) * | 2018-02-01 | 2018-08-10 | 裴小根 | One kind being readily transported formula rescue robot |
| CN108381506A (en) * | 2018-02-01 | 2018-08-10 | 裴小根 | A kind of rescue robot with good damping |
| CN108381556A (en) * | 2018-02-01 | 2018-08-10 | 裴小根 | A kind of multifunctional rescue robot |
| CN109974906A (en) * | 2019-03-15 | 2019-07-05 | 广西电网有限责任公司桂林供电局 | A kind of plum blossom fingertip spring compression force checking device |
| CN110920317A (en) * | 2019-12-17 | 2020-03-27 | 华南农业大学 | Automatic leveling chassis, agricultural vehicle and leveling method |
| CN110920318A (en) * | 2019-12-17 | 2020-03-27 | 华南农业大学 | Variable diameter wheel and agricultural vehicle chassis |
| CN111086352A (en) * | 2020-01-06 | 2020-05-01 | 华南农业大学 | Multi-rod linkage variable wheel diameter wheel, vehicle chassis and vehicle |
| CN111623191A (en) * | 2020-06-03 | 2020-09-04 | 济南大学 | Umbrella-shaped supporting mechanism of pipeline robot |
| CN112238708A (en) * | 2020-09-23 | 2021-01-19 | 北京特种机械研究所 | Reducing Mecanum wheel |
| CN112757839A (en) * | 2021-01-14 | 2021-05-07 | 上海工程技术大学 | Self-adaptive reducing wheel |
-
2014
- 2014-11-13 CN CN201420675503.4U patent/CN204249714U/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104887417A (en) * | 2015-06-16 | 2015-09-09 | 北京理工大学 | Wheel diameter-adjustable mechanism suitable for electric wheelchair |
| CN105083351A (en) * | 2015-08-31 | 2015-11-25 | 国家电网公司 | Electrical safety equipment transport vehicle capable of surmounting obstacles |
| CN106004231A (en) * | 2016-06-07 | 2016-10-12 | 河南摩西机械制造有限公司 | Obstacle crossing wheel |
| CN108381556A (en) * | 2018-02-01 | 2018-08-10 | 裴小根 | A kind of multifunctional rescue robot |
| CN108163096A (en) * | 2018-02-01 | 2018-06-15 | 裴小根 | A kind of wheel footpath can be with variant rescue robot |
| CN108355276A (en) * | 2018-02-01 | 2018-08-03 | 裴小根 | A kind of remote control pointing fire-extinguishing robot |
| CN108381507A (en) * | 2018-02-01 | 2018-08-10 | 裴小根 | A kind of rescue robot equipped with rescue mechanical arm |
| CN108381557A (en) * | 2018-02-01 | 2018-08-10 | 裴小根 | One kind being readily transported formula rescue robot |
| CN108381506A (en) * | 2018-02-01 | 2018-08-10 | 裴小根 | A kind of rescue robot with good damping |
| CN108184384A (en) * | 2018-02-11 | 2018-06-22 | 黑龙江省水田机械化研究所 | Seeder diameter is adjustable land wheel |
| CN108327459A (en) * | 2018-03-28 | 2018-07-27 | 华南理工大学 | It is a kind of can self-locking deformation wheel mechanism |
| CN108327459B (en) * | 2018-03-28 | 2023-10-31 | 华南理工大学 | Deformation wheel mechanism capable of self-locking |
| CN109974906A (en) * | 2019-03-15 | 2019-07-05 | 广西电网有限责任公司桂林供电局 | A kind of plum blossom fingertip spring compression force checking device |
| CN109974906B (en) * | 2019-03-15 | 2024-05-28 | 广西电网有限责任公司桂林供电局 | Quincuncial contact finger spring pressing force detection device |
| CN110920317A (en) * | 2019-12-17 | 2020-03-27 | 华南农业大学 | Automatic leveling chassis, agricultural vehicle and leveling method |
| CN110920318A (en) * | 2019-12-17 | 2020-03-27 | 华南农业大学 | Variable diameter wheel and agricultural vehicle chassis |
| CN110920317B (en) * | 2019-12-17 | 2021-05-28 | 华南农业大学 | Automatic leveling chassis, agricultural vehicle and leveling method |
| CN111086352A (en) * | 2020-01-06 | 2020-05-01 | 华南农业大学 | Multi-rod linkage variable wheel diameter wheel, vehicle chassis and vehicle |
| CN111623191A (en) * | 2020-06-03 | 2020-09-04 | 济南大学 | Umbrella-shaped supporting mechanism of pipeline robot |
| CN112238708A (en) * | 2020-09-23 | 2021-01-19 | 北京特种机械研究所 | Reducing Mecanum wheel |
| CN112238708B (en) * | 2020-09-23 | 2022-06-17 | 北京特种机械研究所 | Reducing Mecanum wheel |
| CN112757839A (en) * | 2021-01-14 | 2021-05-07 | 上海工程技术大学 | Self-adaptive reducing wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20171113 |