CN112660256B - Trolley obstacle passing auxiliary mechanism based on synchronous belt - Google Patents
Trolley obstacle passing auxiliary mechanism based on synchronous belt Download PDFInfo
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- CN112660256B CN112660256B CN202011637818.6A CN202011637818A CN112660256B CN 112660256 B CN112660256 B CN 112660256B CN 202011637818 A CN202011637818 A CN 202011637818A CN 112660256 B CN112660256 B CN 112660256B
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 86
- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 39
- 239000000956 alloy Substances 0.000 claims description 39
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The invention discloses a trolley obstacle passing auxiliary mechanism based on a synchronous belt, which comprises a frame, a motor, a small synchronous wheel, a large synchronous wheel, a main body synchronous wheel, a synchronous belt, a double-sided tooth synchronous belt and auxiliary wheels, wherein the frame is provided with a plurality of synchronous wheels; the motor is fixed on the frame; the small synchronous wheel is fixedly connected to an output shaft of the motor; the small synchronous wheel is in transmission connection with the large synchronous wheel through a synchronous belt; the main body synchronizing wheel and the large synchronizing wheel are coaxially fixed on the frame; the two auxiliary wheels are fixedly connected below the frame; the main body synchronous wheel and the two auxiliary wheels are driven by the double-sided tooth synchronous belt. The invention has simple structure, can meet the requirements of a common trolley on crossing obstacles, and has lower manufacturing cost, simple and reliable control and light weight.
Description
Technical Field
The invention relates to a terrain adaptation mechanism, in particular to a trolley obstacle passing auxiliary mechanism based on a synchronous belt.
Background
While some places in the urban area of south hilly areas, such as parks, are often buffered by a two-step, intelligent trolleys are increasingly used in the current society, the presence of steps results in simple trolleys often being blocked by steps, limiting the range of movement of the trolleys, and the common solution is to increase the diameter of the wheels to span the steps, which is not applicable in certain situations, such as a higher step would greatly exceed the required size if a large tire is used, and a larger wheel would be costly to manufacture if a special wheel, such as a Mecanum wheel, would be uneconomical and practical.
Disclosure of Invention
The invention aims to overcome the defects and the shortcomings of the prior art, and provides a trolley obstacle crossing auxiliary mechanism based on a synchronous belt, which has a simple structure, can meet the requirements of a common trolley on obstacle crossing, and is low in manufacturing cost, simple and reliable in control and light in weight.
The aim of the invention can be achieved by the following technical scheme: the auxiliary mechanism for passing the obstacle of the trolley based on the synchronous belt comprises a frame, a motor, a small synchronous wheel, a large synchronous wheel, a main body synchronous wheel, the synchronous belt, a double-sided tooth synchronous belt and auxiliary wheels; the motor is fixed on the frame; the small synchronous wheel is fixedly connected to an output shaft of the motor; the small synchronous wheel is in transmission connection with the large synchronous wheel through a synchronous belt; the main body synchronizing wheel and the large synchronizing wheel are coaxially fixed on the frame; the two auxiliary wheels are fixedly connected below the frame; the main body synchronous wheel and the two auxiliary wheels are driven by the double-sided tooth synchronous belt.
Further, the auxiliary wheel comprises an alloy shaft, a deep groove ball bearing, a circular tube, a flange plate and a circular tube printing piece; the alloy shaft axially passes through the centers of two ends of the circular tube; two deep groove ball bearings are symmetrically sleeved on the alloy shaft at the positions of the inner wall surfaces at the two ends of the round tube; a round tube printing piece is respectively padded between the round tube and the deep groove ball bearings at the two ends; and the outer wall surfaces at two ends of the cylinder are respectively fixed with a flange plate.
Further, the device also comprises a large tensioning mechanism, wherein the large tensioning mechanism comprises a large clamping plate, a screw fixing plate, an alloy plate and a compression wheel; the pressing wheel is fixed between the two large clamping plates; a screw fixing plate is fixed above the large clamping plate through screws; an alloy plate is connected above the screw fixing plate through screws; the alloy plate is fixed on the frame through screws. The structure can realize the function of adjusting the pretightening force of the double-sided tooth synchronous belt.
Further, the device also comprises a small tensioning mechanism, wherein the small tensioning mechanism comprises a small clamping plate, a flange bearing, a small screw fixing plate, a deep groove ball bearing, an alloy shaft and an adjusting screw; the alloy shaft is arranged between the two small clamping plates, a flange bearing is arranged at the matching part of the alloy shaft and the small clamping plates, four deep groove ball bearings are sleeved on the alloy shaft, two mutually parallel slotted holes are respectively arranged at symmetrical positions on the two small clamping plates, and a screw rod is fixed between the two symmetrical slotted holes and penetrates through the frame and is fixed; the small screw fixing plate is fixed in the middle of the lower part of the two small clamping plates, the two adjusting screws are fixedly connected to the small screw fixing plate, and the upper ends of the adjusting screws are propped against the frame. The structure can realize the function of adjusting the pretightening force of the synchronous belt.
Further, a limit printing piece is arranged at the matching position of the deep groove ball bearing and the alloy shaft. The limiting printing piece can prevent the deep groove ball bearing from sliding on the alloy shaft.
Further, two main body synchronous wheel supporting plates are fixed on the frame, shaft holes are respectively formed in the two main body synchronous wheel supporting plates, the wheel shaft penetrates through the shaft holes to be fixed, and a flange bearing is arranged at the matching position of the wheel shaft and the main body synchronous wheel supporting plates. The structure can fix the main body synchronous wheel.
Further, a bushing is arranged on the wheel shaft at the middle position of the two main body synchronizing wheel supporting plates, and the bushing props against the main body synchronizing wheel. The bushing prevents the main body synchronizing wheel from sliding on the axle.
Furthermore, the modulus of the inner side surface belt teeth of the double-sided tooth synchronous belt is the same as that of the main body synchronous wheel. The design can ensure the balance of the torque and the speed of the device.
Further, the frame is made of aluminum alloy. So that the device can be of a lighter weight.
Further, the round tube is made of carbon fiber. So that the device can be of a lighter weight.
Compared with the prior art, the invention has the following advantages and beneficial effects: the obstacle passing auxiliary mechanism can be directly fixed on the chassis of the trolley through a mechanism with a proper proportion, is matched with the trolley for direct use, meets the requirements of the trolley, does not limit the structure of the chassis, and has low manufacturing cost and convenient maintenance.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a synchronous belt-based auxiliary mechanism for passing an obstacle of a trolley in an embodiment of the invention;
FIG. 2 is a schematic illustration of a wheel construction in an embodiment of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a schematic diagram of a large tensioning mechanism in an embodiment of the present invention;
FIG. 5 is a schematic view of a small tensioning mechanism in accordance with an embodiment of the present invention;
fig. 6 is a schematic structural view of a fixed body synchronizing wheel in an embodiment of the present invention.
Wherein: 1: a frame, 2: big straining device, 3: small tensioning mechanism, 4: flange plate, 5: deep groove ball bearing, 6: round tube printing piece, 7: round tube, 8: alloy shaft, 9: large splint, 10: screw fixing plate, 11: alloy sheet, 12: small splint, 13: flange bearing, 14: spacing printing piece, 15: small screw fixation plate, 16: motor, 17: double-sided toothed synchronous belt, 18: main body synchronizing wheel, 19: large synchronizing wheel, 20: small synchronizing wheel, 21: synchronous belt, 22: auxiliary wheel, 23: deep groove ball bearing, 24: alloy shaft, 25: adjusting screw, 26: compacting the wheel, 27: axle, 28: bushing, 29: flange bearing, 30: main body synchronizing wheel support plate, 31: and the main body synchronizing wheel mounting plate.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
As shown in fig. 1, a synchronous belt-based auxiliary mechanism for passing an obstacle for a trolley comprises a frame 1, a motor 16, a small synchronous wheel 20, a large synchronous wheel 19, a main body synchronous wheel 18, a synchronous belt 21, a double-sided toothed synchronous belt 17 and auxiliary wheels 22. The frame is a welded or plate-connected aluminum frame, the motor is fixed on the frame, the small synchronous wheel is fixedly connected to the output shaft of the motor, and the small synchronous wheel is connected with the large synchronous wheel through a synchronous belt. The main body synchronizing wheel and the large synchronizing wheel share one wheel shaft 27, and the wheel shafts are fixed on the frame, so that the two wheels can keep the same angular velocity. The two auxiliary wheels are fixedly connected below the frame, and the main body synchronous wheel and the two auxiliary wheels below the frame are driven by the double-sided tooth synchronous belt.
As shown in fig. 2 and 3, the auxiliary wheel 22 includes an alloy shaft 8, a deep groove ball bearing 5, a round tube 7, a flange plate 4, and a round tube print 6. The alloy shaft axially passes through the centers of the two ends of the circular tube, and two deep groove ball bearings are symmetrically sleeved at the positions of the two sides of the alloy shaft, which are propped against the inner wall surfaces of the two ends of the circular tube. A round tube printing piece is respectively arranged between the round tube and the deep groove ball bearings at the two ends. The alloy shaft both ends fixed connection is on the frame, is fixed with the flange board on the outer wall at drum both ends respectively, and the flange board can prevent that the hold-in range from droing. The round tube is made of carbon fiber, so that the weight of the auxiliary wheel can be reduced, and the working efficiency of the auxiliary mechanism for passing the obstacle by the trolley is improved.
The auxiliary mechanism for passing the obstacle of the trolley based on the synchronous belt also comprises a large tensioning mechanism 2 and a small tensioning mechanism 3. As shown in fig. 4, the large tensioning mechanism 2 includes a large clamping plate 9, a screw fixing plate 10, an alloy plate 11, and a pressing wheel 26. The structure of the compacting wheel is the same as that of the auxiliary wheel, the compacting wheel is arranged between the two large clamping plates, and two ends of the compacting wheel are fixed with the large clamping plates through clamping springs. A screw fixing plate is fixed above the large clamping plate through screws, an alloy plate is connected above the screw fixing plate through screws, and screw holes are respectively formed in four corners of the alloy plate and are fixed on the frame through screws. The length of the screw between the screw fixing plate and the alloy plate is adjusted, and the large tensioning mechanism can achieve the effect of adjusting the pretightening force of the double-sided tooth synchronous belt.
As shown in fig. 5, the small tensioning mechanism 3 includes a small clamping plate 12, a flange bearing 13, a limit printing member 14, a small screw fixing plate 15, a deep groove ball bearing 23, an alloy shaft 24, and an adjusting screw 25. The alloy shaft 24 is arranged between the two small clamping plates, and the flange bearing 13 is arranged at the matching part of the alloy shaft 24 and the small clamping plates. Four deep groove ball bearings 23 are sleeved on the alloy shaft 24, and the deep groove ball bearings 23 are in rotary contact with the synchronous belt when in compression. The matching part of the deep groove ball bearing 23 and the alloy shaft 24 is also provided with a limit printing piece 14. Two slots parallel to each other are respectively arranged on the symmetrical positions of the two small clamping plates, and a screw rod is fixed between the two symmetrical slots and penetrates through the frame and is fixed. The small screw fixing plate is fixed in the middle of the lower part of the two small clamping plates, the two adjusting screws are fixedly connected to the small screw fixing plate, and the upper ends of the adjusting screws are propped against the frame. Through the extension length of the length-adjusting screw, the screw rod in the slotted hole can slide relatively, so that the small clamping plate moves downwards to drive the deep groove ball bearing 23 to press down the synchronous belt, and the small tensioning mechanism can realize the effect of adjusting the pretightening force of the synchronous belt.
As shown in fig. 6, two main body synchronizing wheel supporting plates 30 are fixed on the frame, the main body synchronizing wheel supporting plates are made of glass fiber plates, shaft holes are respectively formed in the two main body synchronizing wheel mounting plates, a wheel shaft 27 is fixed through the shaft holes, and a flange bearing 29 is arranged at the matching position of the wheel shaft and the main body synchronizing wheel supporting plates. Two main body synchronizing wheel mounting plates 31 are fixed on the wheel shaft 27, and the two main body synchronizing wheel mounting plates are used for fixing main body synchronizing wheels. A bushing 28 is provided in the middle of the axle 27 for supporting the main synchronizing wheel. The structure can enable the main body synchronous wheel to be fixed on the frame, and meanwhile the main body synchronous wheel cannot slide on the wheel shaft.
The working principle of the invention is as follows: the two trolley passing obstacle auxiliary mechanisms based on the synchronous belt are respectively arranged at the left side and the right side of the trolley chassis, when an obstacle with larger vertical fall such as a step is encountered in the travelling process of the trolley, the motor is started, the motor drives the small synchronous wheel to rotate, the small synchronous wheel drives the large synchronous wheel to rotate, thereby driving the main body synchronous wheel to rotate, the double-sided tooth synchronous belt drives the two auxiliary wheels to rotate, the double-sided tooth synchronous belt and the obstacle are rubbed to generate relative displacement in the process, and the power of the wheels of the trolley is matched to enable the vehicle body to pass the obstacle.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
1. The auxiliary mechanism for passing the obstacle of the trolley based on the synchronous belt is characterized by comprising a frame, a motor, a small synchronous wheel, a large synchronous wheel, a main body synchronous wheel, a synchronous belt, a double-sided tooth synchronous belt and auxiliary wheels; the motor is fixed on the frame; the small synchronous wheel is fixedly connected to an output shaft of the motor; the small synchronous wheel is in transmission connection with the large synchronous wheel through a synchronous belt; the main body synchronizing wheel and the large synchronizing wheel are coaxially fixed on the frame; the two auxiliary wheels are fixedly connected below the frame; the main body synchronous wheel and the two auxiliary wheels are driven by a double-sided tooth synchronous belt; the auxiliary wheel comprises an alloy shaft, a deep groove ball bearing, a circular tube, a flange plate and a circular tube printing piece; the alloy shaft axially passes through the centers of two ends of the circular tube; two deep groove ball bearings are symmetrically sleeved on the alloy shaft at the positions of the inner wall surfaces at the two ends of the round tube; a round tube printing piece is respectively padded between the round tube and the deep groove ball bearings at the two ends; the outer wall surfaces of the two ends of the cylinder are respectively fixed with a flange plate; the device also comprises a large tensioning mechanism, wherein the large tensioning mechanism comprises a large clamping plate, a screw fixing plate, an alloy plate and a compression wheel; the pressing wheel is fixed between the two large clamping plates; a screw fixing plate is fixed above the large clamping plate through screws; an alloy plate is connected above the screw fixing plate through screws; the alloy plate is fixed on the frame through screws; the device also comprises a small tensioning mechanism, wherein the small tensioning mechanism comprises a small clamping plate, a flange bearing, a small screw fixing plate, a deep groove ball bearing, an alloy shaft and an adjusting screw; the alloy shaft is arranged between the two small clamping plates, a flange bearing is arranged at the matching part of the alloy shaft and the small clamping plates, four deep groove ball bearings are sleeved on the alloy shaft, two mutually parallel slotted holes are respectively arranged at symmetrical positions on the two small clamping plates, and a screw rod is fixed between the two symmetrical slotted holes and penetrates through the frame and is fixed; the small screw fixing plate is fixed in the middle of the lower parts of the two small clamping plates, the two adjusting screws are fixedly connected to the small screw fixing plate, and the upper ends of the adjusting screws are propped against the frame; two main body synchronous wheel supporting plates are fixed on the frame, shaft holes are respectively formed in the two main body synchronous wheel supporting plates, a wheel shaft penetrates through the shaft holes to be fixed, and a flange bearing is arranged at the matching position of the wheel shaft and the main body synchronous wheel supporting plates.
2. The synchronous belt-based trolley obstacle passing auxiliary mechanism according to claim 1, wherein a limit printing piece is arranged at the matching position of the deep groove ball bearing and the alloy shaft.
3. The timing belt-based auxiliary mechanism for passing obstacles on a trolley according to claim 1, wherein a bushing is arranged on the wheel shaft at the middle position of the two main body synchronizing wheel supporting plates, and the bushing is propped against the main body synchronizing wheels.
4. The synchronous belt-based trolley obstacle passing auxiliary mechanism according to claim 1, wherein the inner side surface toothed modulus of the double-sided toothed synchronous belt is the same as that of the main body synchronous wheel.
5. The timing belt-based auxiliary mechanism for passing obstacles on a trolley of claim 1, wherein the frame is made of aluminum alloy.
6. The synchronous belt-based auxiliary mechanism for passing obstacles on a trolley of claim 1, wherein the round tube is made of carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011637818.6A CN112660256B (en) | 2020-12-31 | 2020-12-31 | Trolley obstacle passing auxiliary mechanism based on synchronous belt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011637818.6A CN112660256B (en) | 2020-12-31 | 2020-12-31 | Trolley obstacle passing auxiliary mechanism based on synchronous belt |
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| CN112660256A CN112660256A (en) | 2021-04-16 |
| CN112660256B true CN112660256B (en) | 2024-01-05 |
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| CN202011637818.6A Active CN112660256B (en) | 2020-12-31 | 2020-12-31 | Trolley obstacle passing auxiliary mechanism based on synchronous belt |
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2020
- 2020-12-31 CN CN202011637818.6A patent/CN112660256B/en active Active
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