CN217673280U - Wheel type transportation structure capable of transversely extending and retracting wheel track - Google Patents
Wheel type transportation structure capable of transversely extending and retracting wheel track Download PDFInfo
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- CN217673280U CN217673280U CN202221638371.9U CN202221638371U CN217673280U CN 217673280 U CN217673280 U CN 217673280U CN 202221638371 U CN202221638371 U CN 202221638371U CN 217673280 U CN217673280 U CN 217673280U
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Abstract
The utility model provides a wheeled transportation structure of wheel tread can transversely stretch out and draw back, include: the bicycle comprises a frame, a front wheel assembly and a rear wheel assembly; the front wheel assembly and the rear wheel assembly are respectively arranged at the front end and the rear end of the frame; the front wheel assembly comprises a front wheel, a front wheel connecting arm and a front wheel driving mechanism, the front wheel driving mechanism comprises a bilateral telescopic oil cylinder, one end of the front wheel connecting arm is fixedly connected with the bilateral telescopic oil cylinder, the other end of the front wheel connecting arm is fixedly connected with a front wheel axle, and the bilateral telescopic oil cylinder can realize transverse adjustment of the wheel track of the front wheel through stretching; the rear wheel assembly is used for driving the wheel type transportation structure to walk and turn. The utility model has the advantages that: the front wheel track can be widened, so that the front wheel carrier is arranged on two sides of a tail cabin door ramp of the helicopter, the bearing of the tail cabin door ramp is reduced, and meanwhile, the anti-tipping supporting point of the wheel type transportation structure is moved forward, so that the cargo transportation is more stable, and the helicopter is convenient to work in a low environment with specific obstacles; the front wheel connecting arm can rotate around the frame, so that the wheel type transportation structure can be conveniently stored, and the occupied area is reduced.
Description
Technical Field
The utility model belongs to the freight field especially relates to a wheeled transportation structure of wheel tread that can transversely stretch out and draw back.
Background
The hoisting and transporting equipment is developed rapidly, various hoisting and transporting equipment is widely applied to the fields of civil engineering, traffic transportation and the like, is used for completing the operations of moving, lifting, loading and unloading and short-distance transportation of goods, and often needs special loading and unloading and transporting equipment to meet the requirements according to different transportation occasions and different loading and unloading environments.
For the cargo transportation of a helicopter cabin or similar loading and unloading environments, the hoisting and transporting environment has certain particularity, and the characteristics of small loading and unloading inlet of a cabin door, low height of an empennage (limiting the action space of hoisting and transporting equipment), low bearing capacity of a tail cabin door and a ramp, difficulty in using roll-on-roll transportation and the like exist. Therefore, when heavy goods need to be transported to the helicopter, common transportation devices such as a general transportation forklift and a crane cannot meet the loading and unloading requirements. Therefore, in order to ensure that heavy goods can be smoothly loaded to or unloaded from the helicopter cabin, the transportation of the heavy goods by the helicopter becomes an urgent technical problem to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses general transporters such as general transportation fork truck, crane all can't satisfy the problem that the heavy goods loading and unloading of helicopter carried the requirement among the prior art, provide a wheeled transportation structure of wheel base that can transversely stretch out and draw back.
In order to achieve the above purpose, the utility model provides a technical scheme as follows:
a laterally retractable track wheeled transport structure comprising: the bicycle comprises a frame, a front wheel assembly and a rear wheel assembly; the front wheel assembly and the rear wheel assembly are respectively arranged at the front end and the rear end of the frame; the front wheel assembly comprises a front wheel, a front wheel connecting arm and a front wheel driving mechanism, the front wheel driving mechanism comprises a bilateral telescopic oil cylinder, one end of the front wheel connecting arm is fixedly connected with the bilateral telescopic oil cylinder, the other end of the front wheel connecting arm is fixedly connected with a front wheel axle, and the bilateral telescopic oil cylinder can realize transverse adjustment of the wheel track of the front wheel through stretching; the rear wheel assembly is used for driving the wheel type transportation structure to walk and turn.
Further, front wheel actuating mechanism still includes a front wheel installation section of thick bamboo, and a front wheel installation section of thick bamboo is fixed to be set up at the frame front end, and two side scalable hydro-cylinders include the fixed part in middle section and the pars contractilis that bilateral symmetry set up, and the fixed part is fixed to be established in a front wheel installation section of thick bamboo, and the pars contractilis passes through front wheel linking arm and the shaft department fixed connection of front wheel, through the flexible front wheel track of adjusting of pars contractilis.
The front wheel driving mechanism further comprises a first hanging lug, a second hanging lug and a connecting arm which are symmetrically arranged, the length of a fixed part of the double-side telescopic oil cylinder is larger than that of the front wheel mounting cylinder, the two ends of the fixed part are exposed out of the front wheel mounting cylinder, the first hanging lug is fixedly arranged at the two ends of the fixed part exposed out of the front wheel mounting cylinder, the second hanging lug is fixedly arranged at the two sides of the front end of the frame, and the two ends of the supporting arm are respectively connected with the first hanging lug and the second hanging lug and used for fixing the position of the double-side telescopic oil cylinder in the front wheel mounting cylinder; the support arm can be dismantled with first hangers or second hangers and be connected, realizes that two scalable hydro-cylinders of side rotate around a front wheel installation section of thick bamboo, drives the front wheel linking arm and the front wheel is accomodate to the frame below.
Furthermore, one end of the supporting arm is detachably connected with the first hanging lug, the other end of the supporting arm is hinged with the second hanging lug, or the supporting arm is hinged with the first hanging lug at one end, and the other end of the supporting arm is detachably connected with the second hanging lug.
Furthermore, the bottom of the front end of the frame is provided with an inclined plane which can be abutted against a tail cabin door ramp so as to improve the stability of the frame when loading and unloading goods.
Furthermore, the front wheel connecting arm is obliquely arranged on the front side of the double-side telescopic oil cylinder, so that the distance between the front wheel and the front end of the frame is greater than the distance between the rear wheel and the rear end of the frame, the wheel type transportation structure is convenient to erect on two sides of the ramp of the tail cabin door, the front wheel is not easy to tip forwards, and the support is more stable.
Further, the rear wheel assembly includes: the rear wheel and the rear wheel connecting arm; the two transverse ends of the rear wheel connecting arm are respectively connected with the axle centers of the two rear wheels, so that the rear wheels can rotate around the transverse shaft of the rear wheel connecting arm; the top end of the rear wheel connecting arm is of a pivoting support structure and is fixedly connected with the rear end of the frame, and the rear wheel can be driven to steer.
Further, the rear wheel assembly further comprises a motor; the motor is arranged in the rear wheel connecting arm and is electrically connected with the axle centers of the two rear wheels.
Furthermore, the wheel spacing of the rear wheels is lower than the shortest wheel spacing of the front wheels, so that the steering of the rear wheels is facilitated.
Furthermore, the frame is provided with a power system and a control system, the power system and the control system are both electrically connected with the motor and the slewing bearing at the top end of the rear wheel connecting arm, the power system provides power for rotation and steering of the rear wheel, and the control system controls the rotation and steering of the rear wheel.
The utility model has the advantages that: the wheel track of the front wheel can be adjusted to adapt to different loading and unloading places, and the problem of transporting heavy goods to a cabin door of a helicopter or other narrow spaces is solved; the front wheel track can be widened, the front wheel carriers are arranged on two sides of a tail cabin door ramp of the helicopter, the bearing of the tail cabin door ramp is reduced, and meanwhile, the anti-tipping supporting points of the wheel type transportation structure are moved forward, so that the cargo transportation is more stable; the front wheels avoid the ramp to control the operation height of the transportation structure, so that the transportation structure can work in a short working environment with specific obstacles conveniently; the front wheel connecting arm can rotate around the frame, so that the wheel type transportation structure can be conveniently stored, and the occupied area is reduced.
Drawings
FIG. 1 is a view of a wheel type transportation structure with a transversely retractable wheel track;
FIG. 2 is a schematic view of the overall structure of a wheel type transportation structure with a transversely retractable track;
FIG. 3 is a schematic view of the overall structure of a wheel type transportation structure with a transversely extendable track;
FIG. 4 is a bottom view of a wheeled conveyance structure with laterally extendable and retractable track;
FIG. 5 is a schematic view of a wheel-type transportation structure with a laterally retractable track;
FIG. 6 is a first usage state diagram of a wheel-type transportation structure with a transversely retractable track;
fig. 7 is a second use state diagram of the wheel type transportation structure with the transversely telescopic wheel track.
Detailed Description
For making the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following drawings in the embodiments of the present invention will be combined, and the technical solution in the embodiments of the present invention is clearly and completely described, based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work are included in the protection scope of the present invention.
As shown in fig. 1, the wheel type transportation structure with transversely retractable track of the present invention comprises: the front wheel assembly 2 and the rear wheel assembly 3 are respectively connected to the front end and the rear end of the frame 1, the front wheel assembly 2 can change the distance between the front wheels so that the front wheel assembly is erected on two sides of a tail cabin door ramp 4 of the helicopter, a supporting point of the wheel type transportation structure for resisting tipping is moved forward, and the front wheels are prevented from being directly rolled on the tail cabin door ramp 4; the rear wheel assembly 3 can drive the freight car to walk and turn.
As shown in fig. 2 to 4, the frame 1 is a transverse supporting component of the wheel type transportation structure, and may be a plate-shaped or frame-shaped structure, the front end and the rear end of the frame 1 are respectively connected with the front wheel assembly 2 and the rear wheel assembly 3 through corresponding driving structures, the frame 1 is provided with a power system and a control system, and the power system and the control system are electrically connected with the driving component in the wheel type transportation structure, and are used for controlling the movement of the wheel type transportation structure and providing power for the driving component; the frame 1 can be correspondingly provided with a hoisting structure 11 which is matched with a wheel type transportation structure to form a complete loading and unloading vehicle so as to facilitate the loading and unloading of goods; the bottom of the front end of the frame 1 is provided with an inclined plane 12, so that the bottom of the frame 1 is better abutted against the tail cabin door ramp 4, the contact area with the ramp is increased, and the wheel type transportation structure is convenient to stably support.
As shown in fig. 2 and 3, the front wheel assembly 2 is fixedly connected to the front end of the frame 1, and includes: the front wheel drive mechanism comprises a front wheel 21, a front wheel connecting arm 22 and a front wheel drive mechanism 23, wherein one end of the front wheel connecting arm 22 is connected with the front wheel drive mechanism 23, and the other end of the front wheel connecting arm 22 is fixedly connected with a wheel axle of the front wheel 21 so as to support the front end of the frame 1; the front wheel driving mechanism 23 is used for transversely adjusting the wheel track between the front wheels 21, so that when the front wheels are close to the helicopter tail door ramp 4, the wheel track of the front wheels can be widened, more than half of the vehicle body of the wheel type transportation structure can be erected on two sides of the tail door ramp 4, the anti-tipping supporting point of the wheel type transportation structure is moved forwards, the front wheels are prevented from being directly rolled on the tail door ramp 4, and the bearing of the ramp is reduced.
As shown in fig. 3, the front wheel drive mechanism 23 includes: the front wheel mounting cylinder 231, the double-side telescopic oil cylinder 232, the first hanging lug 233, the second hanging lug 234 and the supporting arm 235; the front wheel mounting tube 231 is fixedly arranged at the front end of the frame 1, the double-side telescopic oil cylinder 232 is of a structure with two telescopic sides, the middle section is a fixed part, the two telescopic sides are symmetrical telescopic parts, and the double-side telescopic oil cylinder 232 is sleeved in the front wheel mounting tube 231 and can rotate in the front wheel mounting tube 231; the length of the fixing part is greater than that of the front wheel mounting tube 231, so that two ends of the fixing part can be exposed out of the front wheel mounting tube 231; the two sides of the double-side telescopic oil cylinder 232 are fixedly connected with the wheel axle of the front wheel 21 through the front wheel connecting arms 22 which are symmetrically arranged, and the telescopic length of the double-side telescopic oil cylinder 232 is adjusted when the wheel type transportation structure moves forwards, so that the width adjustment of the wheel distance of the two front wheels 21 can be realized.
The front wheel connecting arm 22 is obliquely arranged towards the front of the frame 1, so that a certain distance is reserved between the front wheel 21 and the front end of the frame 1, the distance is greater than the distance between the rear wheel 31 and the rear end of the frame 1, when the wheel type transportation structure is erected on two sides of the tail cabin door ramp 4, the wheel type transportation structure is not prone to tipping forwards, and the support is more stable.
The first hanging lug 233, the second hanging lug 234 and the supporting arm 235 are symmetrical components, the first hanging lug 233 is fixedly provided with a fixing part 2321 of the double-side telescopic cylinder, which is exposed out of two ends of the front wheel mounting cylinder 231, the second hanging lug 234 is fixedly arranged on two sides of the front end of the frame 1, the supporting arm 235 is of a short rod structure, and two ends of the supporting arm 235 are respectively connected with the first hanging lug 233 and the second hanging lug 234; the supporting arm 235 is detachably connected with the first hanging lug 233 and is hinged with the second hanging lug 234; or the supporting arm 235 is hinged with the first hanging lug 233 and detachably connected with the second hanging lug 234.
As shown in fig. 3 and 5, in the connection state of the support arm 235 with the first hanging lug 233 and the second hanging lug 234, the position of the double-sided telescopic cylinder 232 in the front wheel mounting tube 231 can be fixed, and the height of the front end of the frame 1 can be supported; after the support arm 235 is detached from the first hanging lug 233 or the second hanging lug 234, the two-sided telescopic cylinder 232 can rotate around the front wheel mounting cylinder 231 to drive the front wheel connecting arm 22 and the front wheel to be folded towards the lower part of the frame, so that the length and the occupied area of the whole transportation structure are reduced, and the storage is convenient.
As shown in fig. 4, the rear wheel assembly 3 includes: a rear wheel 31, a rear wheel connecting arm 32; the connecting arm 32 of the rear wheel is of a 'notch' type structure, and two ends of the 'notch' type are respectively connected with the axle centers of the two rear wheels, so that the rear wheel 31 can rotate around the transverse shaft of the connecting arm 32; the top end of the 'notch' type is a pivoting support structure which is fixedly connected with the rear end of the frame and can drive the rear wheel to steer. The motor is arranged in the rear wheel connecting arm 32 and is connected with the axle center of the rear wheel, and the top end of the rear wheel connecting arm 32 and the motor are electrically connected with the power system and the control system to provide power for the rotation and the steering of the rear wheel.
The wheel spacing of the rear wheels 31 is fixed and lower than the shortest wheel spacing of the front wheels 21, so that the steering of the rear wheels 31 is facilitated, the fine-tuning steering of the wheel type transportation structure when the rear wheels 31 travel to the tail gate ramp 4 is also facilitated, and the cargo loading and unloading are facilitated.
As shown in fig. 6 and 7, the wheel type transportation structure of the present invention has the following usage: the goods to be loaded and unloaded are placed on the frame 1; the rear wheel connecting arms 32 are controlled by a power system and a control system to drive the wheel type transportation structure to be transported to the ramp 4 of the tail cabin door of the helicopter, when the front wheels 21 of the wheel type transportation structure are close to the ramp 4 of the tail cabin door, the wheel track of the front wheels is increased by adjusting the telescopic oil cylinders 232 at the two sides, so that the front wheels 21 are erected on the two sides of the ramp 4 of the tail cabin door to advance, when the bottom inclined plane 12 of the frame 1 is abutted against the ramp 4 of the tail cabin door, the rear wheels 31 are braked to enable the transportation structure to be stably erected and abutted against the ramp 4 of the tail cabin door, and rolling on the ramp is avoided; at the moment, the goods on the frame 1 approach the door of the cabin and are loaded and unloaded through other hoisting structures on the loading and unloading vehicle. When the wheel type transportation structure is not used, the supporting arm 235 can be opened to be connected with the first hanging lug 233 or the second hanging lug 234, the double-side telescopic oil cylinder 232 is rotated to drive the front wheel connecting arm 22 and the front wheel 21 to be folded towards the lower part of the frame 1, the length and the occupied area of the wheel type transportation structure are reduced, and the wheel type transportation structure is convenient to store.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the techniques of the present invention are substantially any simple modification and equivalent changes to the above embodiments, all falling within the protection scope of the present invention.
Claims (10)
1. A laterally retractable track wheel type transportation structure, comprising: the bicycle comprises a frame, a front wheel assembly and a rear wheel assembly; the front wheel assembly and the rear wheel assembly are respectively arranged at the front end and the rear end of the frame; the front wheel assembly comprises a front wheel, a front wheel connecting arm and a front wheel driving mechanism, the front wheel driving mechanism comprises a bilateral telescopic oil cylinder, one end of the front wheel connecting arm is fixedly connected with the bilateral telescopic oil cylinder, the other end of the front wheel connecting arm is fixedly connected with a front wheel axle, and the bilateral telescopic oil cylinder can realize transverse adjustment of the wheel track of the front wheel through stretching; the rear wheel assembly is used for driving the wheel type transportation structure to walk and turn.
2. The structure of claim 1, wherein the front wheel driving mechanism further comprises a front wheel mounting tube fixedly disposed at the front end of the frame, the double-sided retractable cylinder comprises a middle fixing portion and two symmetrically disposed retractable portions, the fixing portion is fixedly sleeved in the front wheel mounting tube, the retractable portions are fixedly connected to the axle of the front wheel through front wheel connecting arms, and the front wheel track is adjusted by the extension of the retractable portions.
3. The wheel type transportation structure with the transversely telescopic wheel track as claimed in claim 2, wherein the front wheel driving mechanism further comprises a first lug, a second lug and a connecting arm which are symmetrically arranged, the length of the fixed part of the double-side telescopic cylinder is greater than that of the front wheel mounting cylinder, the two ends of the fixed part are exposed out of the front wheel mounting cylinder, the first lug is fixedly arranged at the two ends of the fixed part exposed out of the front wheel mounting cylinder, the second lug is fixedly arranged at the two sides of the front end of the frame, and the two ends of the supporting arm are respectively connected with the first lug and the second lug and used for fixing the position of the double-side telescopic cylinder in the front wheel mounting cylinder; the support arm can be dismantled with first hangers or second hangers and be connected, realizes that two scalable hydro-cylinders of side rotate around a front wheel installation section of thick bamboo, drives the front wheel linking arm and front wheel and accomodates to the frame below.
4. A laterally retractable track wheeled transport structure as claimed in claim 3, wherein the support arm is hinged at one end to the first lug and at the other end to the second lug, or hinged at one end to the first lug and at the other end to the second lug.
5. A laterally retractable track wheeled transporter according to any one of claims 2 to 4, wherein the frame is provided with a ramp at the bottom of its front end, the ramp being adapted to abut against a tailgate ramp to improve stability of the wheeled transporter when loading or unloading goods.
6. A laterally retractable track wheel type transportation structure as claimed in any one of claims 1 to 4, wherein the front wheel connecting arm is obliquely arranged at the front side of the double-sided retractable cylinder so that the distance between the front wheel and the front end of the frame is greater than the distance between the rear wheel and the rear end of the frame, thereby facilitating the transportation structure to be erected at both sides of the ramp of the tail gate door without tipping forward and being more stable in support.
7. A laterally retractable track wheeled conveyance structure as claimed in claim 1, wherein the rear wheel assembly includes: the rear wheel and the rear wheel connecting arm; the two transverse ends of the rear wheel connecting arm are respectively connected with the axle centers of the two rear wheels, so that the rear wheels can rotate around the transverse shaft of the rear wheel connecting arm; the top end of the rear wheel connecting arm is of a slewing bearing structure and is fixedly connected with the rear end of the frame, and the rear wheel can be driven to steer.
8. A laterally retractable track wheeled transport structure as claimed in claim 7 wherein the rear wheel assembly further includes a motor; the motor is arranged in the rear wheel connecting arm and is electrically connected with the axle centers of the two rear wheels.
9. A laterally retractable track wheeled conveyance structure as claimed in claim 7, wherein the rear wheels have a wheel spacing which is less than the shortest wheel spacing of the front wheels, to facilitate steering of the rear wheels.
10. A laterally retractable track wheel type transportation structure as claimed in claim 8 or 9, wherein the frame is provided with a power system and a control system, the power system and the control system are electrically connected with the slewing bearing at the top end of the connecting arm of the rear wheel and the motor, the power system provides power for the rotation and steering of the rear wheel, and the control system controls the rotation and steering of the rear wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221638371.9U CN217673280U (en) | 2022-06-28 | 2022-06-28 | Wheel type transportation structure capable of transversely extending and retracting wheel track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221638371.9U CN217673280U (en) | 2022-06-28 | 2022-06-28 | Wheel type transportation structure capable of transversely extending and retracting wheel track |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217673280U true CN217673280U (en) | 2022-10-28 |
Family
ID=83713192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221638371.9U Active CN217673280U (en) | 2022-06-28 | 2022-06-28 | Wheel type transportation structure capable of transversely extending and retracting wheel track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217673280U (en) |
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2022
- 2022-06-28 CN CN202221638371.9U patent/CN217673280U/en active Active
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