CN104228454B - A kind of cross-country traveling ability bearing wheels structure - Google Patents
A kind of cross-country traveling ability bearing wheels structure Download PDFInfo
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- CN104228454B CN104228454B CN201410359977.2A CN201410359977A CN104228454B CN 104228454 B CN104228454 B CN 104228454B CN 201410359977 A CN201410359977 A CN 201410359977A CN 104228454 B CN104228454 B CN 104228454B
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- bearing wheels
- fixing
- holding rack
- connecting cleat
- jointed shaft
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- 230000003014 reinforcing effect Effects 0.000 claims description 34
- 238000004458 analytical method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
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- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/02—Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs
- B62B5/026—Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs with spiders or adapted wheels
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- Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Escalators And Moving Walkways (AREA)
- Handcart (AREA)
Abstract
The present invention relates to bearing wheels structure, disclose a kind of cross-country traveling ability bearing wheels structure, including wheel carrier (1), first bearing wheels (2) and the second bearing wheels (3), front bearing wheels fixing-holding rack (4) is set between the first bearing wheels (2) and wheel carrier (1), between wheel carrier (1) and front bearing wheels fixing-holding rack (4), the front plate gyroaxis (45) by being arranged on front bearing wheels fixing-holding rack (4) is hinged, hinged by the first jointed shaft (6) between front bearing wheels fixing-holding rack (4) and the first bearing wheels (2)；Between second bearing wheels (3) and wheel carrier (1), structure is identical with the first bearing wheels (2)。The height of clamping plate gyroaxis of the present invention is lower than the height of bearing wheels rotating shaft, bearing wheels lateral symmetry subsection setup simultaneously, solve the minor diameter bearing wheels structure problem by property difference of traditional logistics equipment, the equipment that substantially increases, at roughness pavement, especially has the property passed through on the road surface of high low head step。
Description
Technical field
The present invention relates to bearing wheels structure, particularly relate to a kind of cross-country traveling ability bearing wheels structure。
Background technology
At present, the minor diameter bearing wheels structure of traditional logistics equipment is by the problem of property difference, particularly in roughness pavement, and has the road surface of high low head step, and traditional bearing wheels structure cannot realize effective transport and by corresponding step。
Summary of the invention
The present invention is directed to the minor diameter bearing wheels structure of logistics equipment traditional in prior art by property difference etc. shortcoming, provide the height height lower than bearing wheels rotating shaft of a kind of clamping plate gyroaxis, bearing wheels lateral symmetry subsection setup simultaneously, solve the minor diameter bearing wheels structure problem by property difference of traditional logistics equipment, the equipment that substantially increases, at roughness pavement, especially has a kind of cross-country traveling ability bearing wheels structure by property on the road surface of high low head step。
In order to solve above-mentioned technical problem, the present invention is addressed by following technical proposals:
A kind of cross-country traveling ability bearing wheels structure, including wheel carrier, first bearing wheels and the second bearing wheels, front bearing wheels fixing-holding rack is set between the first bearing wheels and wheel carrier, between wheel carrier and front bearing wheels fixing-holding rack, the front plate gyroaxis by being arranged on front bearing wheels fixing-holding rack is hinged, hinged by the first jointed shaft between front bearing wheels fixing-holding rack and the first bearing wheels；Arranging rear bearing wheels fixing-holding rack between second bearing wheels and wheel carrier, between wheel carrier and rear bearing wheels fixing-holding rack, the rear plate gyroaxis by being arranged on rear bearing wheels fixing-holding rack is hinged, hinged by the second jointed shaft between rear bearing wheels fixing-holding rack and the second bearing wheels。
As preferably, front bearing wheels fixing-holding rack includes front connecting cleat and front reinforcing prop, and rear bearing wheels fixing-holding rack includes rear connecting cleat and rear reinforcing prop；Between wheel carrier and front connecting cleat, the front plate gyroaxis by being arranged on connecting cleat is hinged, hinged by the first jointed shaft between front connecting cleat, the first bearing wheels, rear reinforcing prop；Between wheel carrier and rear connecting cleat, the rear plate gyroaxis by being arranged on rear connecting cleat is hinged, hinged by the second jointed shaft between rear connecting cleat, the second bearing wheels, front reinforcing prop。Rear bearing wheels fixing-holding rack structure is identical with front bearing wheels fixing-holding rack。
As preferably, front reinforcing prop is a cylinder, and the side of cylinder is connected with front connecting cleat, and the shaft centre line of cylinder is vertical with front connecting cleat place plane, and the centre of cylinder arranges axis hole；Rear connecting cleat, structure and the front connecting cleat of rear reinforcing prop, front reinforcing prop structure are identical。
As preferably, the shaft centre line of front plate gyroaxis and rear plate gyroaxis is on the same line；First jointed shaft is parallel with the second jointed shaft, the lower section of the plane that the shaft centre line of front plate gyroaxis and rear plate gyroaxis is positioned at the first jointed shaft shaft centre line and the second jointed shaft shaft centre line is constituted。
As preferably, the first bearing wheels is identical with the radius of the second bearing wheels, the first bearing wheels and the second bearing wheels interlaced arrangement。First bearing wheels is identical with the radius of the second bearing wheels。The distance at the first hinged axis hole center and clamping plate revolutions axis hole center is h, and the radius of the first bearing wheels is R, and the first hinged axis hole and the second hinged axis hole distance of shaft centers on rear bearing wheels fixing-holding rack are from for L。
As preferably, front connecting cleat bottom arranges the front anti-canting limited block of evagination and rear anti-canting limited block, and front anti-canting limited block and rear anti-canting limited block are symmetrically distributed in front plate revolution axis hole both sides。The bearing wheels structure that current bearing wheels fixing-holding rack and rear bearing wheels fixing-holding rack form is when upset, and wheel carrier, owing to being subject to front anti-canting limited block and the restriction of rear anti-canting limited block, therefore upset scope and limited extent, effectively prevents bearing wheels structure from overturning excessive。
As preferably, the shaft centre line of front plate gyroaxis, the distance of the plane constituted to the first jointed shaft shaft centre line and the second jointed shaft shaft centre line is h, and has h > 0。
As preferably, rear reinforcing prop is provided with the pin-and-hole fixing the first jointed shaft；Front reinforcing prop is provided with the pin-and-hole fixing the second jointed shaft。
As preferably, wheel carrier is connected with drive member。
Due to the fact that and have employed above technical scheme, there is significant technique effect: the height of clamping plate gyroaxis of the present invention is lower than the height of bearing wheels rotating shaft, bearing wheels lateral symmetry subsection setup simultaneously, solve the minor diameter bearing wheels structure problem by property difference of traditional logistics equipment, the equipment that substantially increases, at roughness pavement, especially has the property passed through on the road surface of high low head step。
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1。
Fig. 2 is the top view of Fig. 1。
Fig. 3 is the structure chart of the front bearing wheels fixing-holding rack in Fig. 1。
Fig. 4 is the top view of Fig. 3。
Fig. 5 goes forward the top view of bearing wheels fixing-holding rack。
Fig. 6 is tradition bearing wheels structure chart。
Fig. 7 is Fig. 6 top view。
Fig. 8 is the height of step when being R, cross-country traveling ability bearing wheels structural stress analysis figure of the present invention。
Fig. 9 is the height of step when being R, tradition bearing wheels structural stress analysis figure。
Figure 10 is the height of step when being R, and cross-country traveling ability bearing wheels of the present invention passes through schematic diagram。
Figure 11 is the height of step when being 2R, and cross-country traveling ability bearing wheels of the present invention passes through schematic diagram。
The toponym that in the figures above, each number designation refers to is as follows: wherein 1 wheel carrier, 2 first bearing wheels, 3 second bearing wheels, bearing wheels fixing-holding rack before 4, bearing wheels fixing-holding rack after 5, 6 first jointed shafts, 7 second jointed shafts, 8 jointed shafts, connecting cleat before 41, reinforcing prop before 42, anti-canting limited block before 43, anti-canting limited block after 44, 45 front plate gyroaxises, 46 pin-and-holes, connecting cleat after 51, reinforcing prop after 52, anti-canting limited block before 53, anti-canting limited block after 54, 55 rear plate gyroaxises, 56 pin-and-holes。
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with accompanying drawing 1 to Figure 11:
Embodiment 1
A kind of cross-country traveling ability bearing wheels structure, as shown in Figure 1 to 11, including wheel carrier 1, first bearing wheels 2 and the second bearing wheels 3, front bearing wheels fixing-holding rack 4 is set between first bearing wheels 2 and wheel carrier 1, between wheel carrier 1 and front bearing wheels fixing-holding rack 4, the front plate gyroaxis 45 by being arranged on front bearing wheels fixing-holding rack 4 is hinged, hinged by the first jointed shaft 6 between front bearing wheels fixing-holding rack 4 and the first bearing wheels 2；Rear bearing wheels fixing-holding rack 5 is set between second bearing wheels 3 and wheel carrier 1, between wheel carrier 1 and rear bearing wheels fixing-holding rack 5, the rear plate gyroaxis 55 by being arranged on rear bearing wheels fixing-holding rack 5 is hinged, hinged by the second jointed shaft 7 between rear bearing wheels fixing-holding rack 5 and the second bearing wheels 3。
Front bearing wheels fixing-holding rack 4 includes front connecting cleat 41 and front reinforcing prop 42, and rear bearing wheels fixing-holding rack 5 includes rear connecting cleat 51 and rear reinforcing prop 52；Between wheel carrier 1 and front connecting cleat 41, the front plate gyroaxis 45 by being arranged on connecting cleat 41 is hinged, hinged by the first jointed shaft 6 between front connecting cleat the 41, first bearing wheels 2, rear reinforcing prop 52；Between wheel carrier 1 and rear connecting cleat 51, the rear plate gyroaxis 55 by being arranged on rear connecting cleat 51 is hinged, hinged by the second jointed shaft 7 between rear connecting cleat the 51, second bearing wheels 3, front reinforcing prop 42。Rear bearing wheels fixing-holding rack 5 structure is identical with front bearing wheels fixing-holding rack 4。
Front reinforcing prop 42 is a cylinder, and the side of cylinder is connected with front connecting cleat 41, and the shaft centre line of cylinder is vertical with front connecting cleat 41 place plane, and the centre of cylinder arranges axis hole；Rear connecting cleat 51, structure and the front connecting cleat 41 of rear reinforcing prop 52, front reinforcing prop 42 structure are identical。Owing to the easy discontinuity equalization of this structure causes that connecting cleat 41 deforms, the Stability Analysis of Structures of clamping plate, bearing wheels assembly must be kept by frame for movement, therefore, connecting cleat 41 arranges reinforcing prop 42, the intensity of total can be improved, prevent connecting cleat 41 from deforming, improve the service life of total。
The shaft centre line of front plate gyroaxis 45 and rear plate gyroaxis 55 is on the same line；First jointed shaft 6 is parallel with the second jointed shaft 7, the lower section of the plane that the shaft centre line of front plate gyroaxis 45 and rear plate gyroaxis 55 is positioned at the first jointed shaft 6 shaft centre line and the second jointed shaft 7 shaft centre line is constituted。
First bearing wheels 2 is identical with the radius of the second bearing wheels 3, the first bearing wheels 2 and the second bearing wheels 3 interlaced arrangement。The present invention is worked in coordination combined crosswise by front bearing wheels fixing-holding rack 4 and rear bearing wheels fixing-holding rack 5, compared with existing traditional structure, first the structure of reinforcing prop can increase the bearing capacity of bearing carrier, and the connecting cleat overcoming tradition single flat plate formula is short for service life, it is easy to the defect of deformation；Secondly, traditional single linear bearing wheels is arranged, in actual moving process, owing to easily producing the bending moment of torsion of the left and right vertical with bearing wheels direction of advance between clamping plate with bearing wheels, thus causing that bearing wheels is very easy to come off between clamping plate, cause very big potential safety hazard。And in the present invention, owing to being provided with front and back reinforcing prop, enhance the bulk strength of whole bearing wheels structure on the one hand, on the other hand, further through the first jointed shaft 6 by hinged to rear reinforcing prop 52 and the first bearing wheels 2, by bearing pin, the first jointed shaft 6 is fixed, it is prevented that the first jointed shaft 6 slips and falls out simultaneously；By the second jointed shaft 7 by hinged to front reinforcing prop 42 and the second bearing wheels 3, by bearing pin, the second jointed shaft 7 is fixed, it is prevented that the second jointed shaft 7 slips and falls out simultaneously。
First bearing wheels 2 is identical with the radius of the second bearing wheels 3。The distance at the first hinged axis hole 46 center and clamping plate revolutions axis hole 47 center is h, and the radius of the first bearing wheels 2 is R, and the first hinged axis hole 46 and the second hinged axis hole distance of shaft centers on rear bearing wheels fixing-holding rack are from for L。
Front connecting cleat 41 bottom arranges the front anti-canting limited block 43 of evagination and rear anti-canting limited block 44, and front anti-canting limited block 43 and rear anti-canting limited block 44 are symmetrically distributed in front plate revolution axis hole 45 both sides。The bearing wheels structure that current bearing wheels fixing-holding rack 4 and bearing wheels fixing-holding rack 5 form is when upset, wheel carrier 1 limits with rear anti-canting limited block 44 owing to being subject to front anti-canting limited block 43, therefore upset scope and limited extent, effectively prevents the upset of bearing wheels structure excessive。Owing to clamping plate are cannot use after upper and lower unsymmetric structure and upset, before institute, design has front anti-canting limited block 43 and rear anti-canting limited block 44 on connecting cleat 41, it is prevented that front bearing wheels fixing-holding rack 4 overturns。The structure of rear bearing wheels fixing-holding rack 5 and design principle are identical with front bearing wheels fixing-holding rack 4。
The shaft centre line of front plate gyroaxis 45, the distance of the plane constituted to the first jointed shaft 6 shaft centre line and the second jointed shaft 7 shaft centre line is h, and has h > 0。Arranging the second hinged axis hole 48 installing the second jointed shaft 7 and the first hinged axis hole 47 installing the first jointed shaft 6 on front connecting cleat 41, the line distance of the central point of the first hinged axis hole 47 and the central point of the second hinged axis hole 48 is L。First bearing wheels 2 is identical with the radius of the second bearing wheels 3。Bearing wheels radius R。
Rear reinforcing prop 52 is provided with the pin-and-hole 56 fixing the first jointed shaft 6；Front reinforcing prop 41 is provided with the pin-and-hole 46 fixing the second jointed shaft 7。Wheel carrier 1 is connected with drive member。
As shown in Figure 8, the stress that bearing wheels structure relates to includes: the driving force Fd that vehicle advances, the downforce Fp that bearing wheels assembly bears, support force Fn1, Fn2 of single bearing wheels faced by ground, the retroaction resistance Fd ' suffered by bearing wheels assembly, wherein:
Vertical direction force analysis obtains Fp=Fn1+Fn2
Horizontal direction force analysis obtains Fd '=Fd
Traditional structure stress, as shown in Figure 8, when bearing wheels assembly runs into the step be more than or equal to bearing wheels radius R,
Fd '=Fd, and on the same line,
Fp=Fn1+Fn2
No matter how driving force Fd increases, and all can not produce the change of any moment of torsion or other force value, therefore cannot break balance, it is impossible to realize the purpose of climb steps。So the step handling capacity of this traditional structure, only limit the step less than bearing wheels radius R, and when shoulder height less than but during close to R value, by relatively difficult, and huge impulsive force can be produced。
Present configuration stress, as it is shown in fig. 7, when bearing wheels assembly runs into the step be more than or equal to bearing wheels radius R, with the stress point of Fn1 for turning point, carry out balance analysis:
Fd ' × R+Fn2 × L=Fp × L/2+Fd × (R-h)
Wherein Fp=Fn1+Fn2
Fd=Fd '
When driving force Fd increases, corresponding Fd ' synchronizes to increase, and Fn2 reduces accordingly, the Fn2=0 newton when critical state,
Fd ' × R=Fp × L/2+Fd × (R-h)
Simplification of a formula obtains
Fd=(Fp × L)/2h
Owing to vehicle weight is fixed value, so the downforce Fp that bearing wheels assembly bears is steady state value, the driving force Fd advanced when vehicle continues to increase,
Fd>(Fp×L)/2h
Then there will be the bearing wheels of contact step liftoff, and liftoff corresponding L later can reduce, h can increase, and the value of (Fp × L)/2h can diminish, bigger with the difference of Fd, it is easier to makes bearing wheels clamp region realize upset, it is achieved such as the effect of Fig. 9。
From the height L+R passed through that Theoretical Calculation draws, and L ≈ 1.5R, therefore theory can be about 2.5R by shoulder height, if Figure 10 is this structure process when passing through the step of height 2R。Through sample testing, bearing wheels radius is 40mm, and the maximum shoulder height passed through is 100mm, is consistent with the 2.5R value of Theoretical Calculation, and the method checking is feasible。
In a word, the foregoing is only presently preferred embodiments of the present invention, all equalizations made according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention。
Claims (7)
1. a cross-country traveling ability bearing wheels structure, including wheel carrier (1), first bearing wheels (2) and the second bearing wheels (3), it is characterized in that: front bearing wheels fixing-holding rack (4) is set between the first bearing wheels (2) and wheel carrier (1), between wheel carrier (1) and front bearing wheels fixing-holding rack (4), the front plate gyroaxis (45) by being arranged on front bearing wheels fixing-holding rack (4) is hinged, hinged by the first jointed shaft (6) between front bearing wheels fixing-holding rack (4) and the first bearing wheels (2)；Rear bearing wheels fixing-holding rack (5) is set between the second bearing wheels (3) and wheel carrier (1), between wheel carrier (1) and rear bearing wheels fixing-holding rack (5), the rear plate gyroaxis (55) by being arranged on rear bearing wheels fixing-holding rack (5) is hinged, hinged by the second jointed shaft (7) between rear bearing wheels fixing-holding rack (5) and the second bearing wheels (3)；Front bearing wheels fixing-holding rack (4) includes front connecting cleat (41) and front reinforcing prop (42), and rear bearing wheels fixing-holding rack (5) includes rear connecting cleat (51) and rear reinforcing prop (52)；Between wheel carrier (1) and front connecting cleat (41), the front plate gyroaxis (45) by being arranged on connecting cleat (41) is hinged, hinged by the first jointed shaft (6) between front connecting cleat (41), the first bearing wheels (2), rear reinforcing prop (52)；Between wheel carrier (1) and rear connecting cleat (51), the rear plate gyroaxis (55) by being arranged on rear connecting cleat (51) is hinged, hinged by the second jointed shaft (7) between rear connecting cleat (51), the second bearing wheels (3), front reinforcing prop (42)；Front connecting cleat (41) bottom arranges the front anti-canting limited block (43) of evagination and rear anti-canting limited block (44), and front anti-canting limited block (43) and rear anti-canting limited block (44) are symmetrically distributed in front plate revolution axis hole (45) both sides。
2. a kind of cross-country traveling ability bearing wheels structure according to claim 1, it is characterized in that: front reinforcing prop (42) is a cylinder, the side of cylinder is connected with front connecting cleat (41), the shaft centre line of cylinder is vertical with front connecting cleat (41) place plane, and the centre of cylinder arranges axis hole；Rear connecting cleat (51), structure and the front connecting cleat (41) of rear reinforcing prop (52), front reinforcing prop (42) structure are identical。
3. a kind of cross-country traveling ability bearing wheels structure according to claim 1, it is characterised in that: the shaft centre line of front plate gyroaxis (45) and rear plate gyroaxis (55) is on the same line；First jointed shaft (6) is parallel with the second jointed shaft (7), the lower section of the plane that the shaft centre line of front plate gyroaxis (45) and rear plate gyroaxis (55) is positioned at the first jointed shaft (6) shaft centre line and the second jointed shaft (7) shaft centre line is constituted。
4. a kind of cross-country traveling ability bearing wheels structure according to claim 1, it is characterized in that: the first bearing wheels (2) is identical with the radius of the second bearing wheels (3), the first bearing wheels (2) and the second bearing wheels (3) interlaced arrangement。
5. a kind of cross-country traveling ability bearing wheels structure according to claim 3, it is characterized in that: the shaft centre line of front plate gyroaxis (45), the distance of the plane constituted to the first jointed shaft (6) shaft centre line and the second jointed shaft (7) shaft centre line is h, and has h > 0。
6. a kind of cross-country traveling ability bearing wheels structure according to claim 1, it is characterised in that: rear reinforcing prop (52) is provided with the pin-and-hole (56) fixing the first jointed shaft (6)；Front reinforcing prop (41) is provided with the pin-and-hole (46) fixing the second jointed shaft (7)。
7. a kind of cross-country traveling ability bearing wheels structure according to claim 1, it is characterised in that: wheel carrier (1) is connected with drive member。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410359977.2A CN104228454B (en) | 2014-07-25 | 2014-07-25 | A kind of cross-country traveling ability bearing wheels structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410359977.2A CN104228454B (en) | 2014-07-25 | 2014-07-25 | A kind of cross-country traveling ability bearing wheels structure |
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| Publication Number | Publication Date |
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| CN104228454A CN104228454A (en) | 2014-12-24 |
| CN104228454B true CN104228454B (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410359977.2A Active CN104228454B (en) | 2014-07-25 | 2014-07-25 | A kind of cross-country traveling ability bearing wheels structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11745778B2 (en) * | 2019-10-18 | 2023-09-05 | Hyster-Yale Group, Inc. | Load wheel designs for pallet entry |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4748961B2 (en) * | 2004-08-19 | 2011-08-17 | 日本輸送機株式会社 | Lift truck |
| US8454037B2 (en) * | 2007-06-15 | 2013-06-04 | Crown Equipment Corporation | Outrigger assembly with quick change load wheel assembly |
| CN202242768U (en) * | 2011-09-08 | 2012-05-30 | 安徽合力股份有限公司 | Front double load wheels for electric pallet truck |
| CN103011021A (en) * | 2012-12-06 | 2013-04-03 | 杭叉集团股份有限公司 | Electric pallet truck goods fork guide wheel device |
| CN203449855U (en) * | 2013-06-03 | 2014-02-26 | 浙江中力机械有限公司 | Bearing wheel structure with high passing capability |
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Denomination of invention: High-trafficability carrying wheel structure Effective date of registration: 20180227 Granted publication date: 20160622 Pledgee: Anji Zhejiang rural commercial bank Limited by Share Ltd Pledgor: Zhejiang EP Equipment Co., Ltd. Registration number: 2018330000047 |
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Denomination of invention: High-trafficability carrying wheel structure Effective date of registration: 20200310 Granted publication date: 20160622 Pledgee: Anji Zhejiang rural commercial bank Limited by Share Ltd Pledgor: BIG LIFT, LLC Registration number: Y2020330000086 |
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Address after: 313300 Zhongli Machinery Co., Ltd., Xiaquan village, Lingfeng street, Anji County, Huzhou City, Zhejiang Province Patentee after: Zhejiang Zhongli Machinery Co., Ltd Address before: Zhongli Industrial Park, Xiaquan village, Dipu Town, Anji County, Huzhou City, Zhejiang Province Patentee before: Zhejiang Zhongli Machinery Co.,Ltd. |
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