CN201161813Y - Belt transportation plane turning apparatus - Google Patents
Belt transportation plane turning apparatus Download PDFInfo
- Publication number
- CN201161813Y CN201161813Y CNU2008200790518U CN200820079051U CN201161813Y CN 201161813 Y CN201161813 Y CN 201161813Y CN U2008200790518 U CNU2008200790518 U CN U2008200790518U CN 200820079051 U CN200820079051 U CN 200820079051U CN 201161813 Y CN201161813 Y CN 201161813Y
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- turning
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- curvature
- cushion slot
- transportation section
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Abstract
The utility model relates to a turning device of a belt conveying plane, which comprises a straight conveying section and a turning conveying section, wherein a gas chamber is arranged on the position of the turning conveying section, a gas chamber groove is arranged on the upper end of the gas chamber, the opening ratio of the inner side of the gas chamber groove of the turning conveying section is 1.5-3 times as higher as that of the outer side of the gas chamber groove, when common belt is conveyed at the turning section, the inner side of the conveying belt bears the crushing stress, which has the characteristic of straight running, and is easy to cause the friction between the gas chamber and the conveying belt. The turning device increases the gas quality of the curved surface in the gas chamber through the reasonable design to the opening of the grooves, controls and steadies the lateral bending force well, balances the centrifugal force, and realizes the turning process of the conveying belt well.
Description
[technical field]
The utility model relates to the conveying machinery field, in particular, relates to a kind of leather belt conveying plane turning device.
[background technology]
Conveying machinery is the industrial equipment that arrives commonly used, and especially industry and place all can be used at building materials, chemical industry, mine, harbour, warehouse, station, goods yard, grain distribution station etc., and it is a kind of extensive general-duty conveying machinery.
Air cushion-belt conveyer is the international and domestic new continuous load transfer device that grows up of the eighties.Be mainly used in the transportation of bulk material (sand, stone, coal, iron sand, cement, clay etc.), also can be used for the conveying of member (as bagged cement, grain etc.) article, its principle of work is: the pressure air from blowing engine enters gas tank, enters between panel and the load-transfer device (together with material) through the pore on the gas tank panel.Select under the air cushion parameter condition correct, this place can form air cushion, holds up load-transfer device and material.When load-transfer device moves with certain speed, between gas tank panel and load-transfer device lower surface, just form gas friction, the resistance of pull-over gear load-transfer device is greatly reduced, power draw greatly reduces, and energy-saving effect is remarkable.Compare with the carrying roller machine, energy-conservation more than 25%.Secondly, because of resistance is little, and air cushion is continuous along throughput direction, and load-transfer device is stable and do not jolt, so delivery speed can greatly improve, conveying efficiency can be enhanced about more than once.When deviation phenomenon occurs because the air-cushion pressure self-regulation effect, be limited in the belt deflection amount very among a small circle in, general running deviation value only is half of carrying roller machine.Because carrying roller quantity reduces about 90%, maintenance load and corresponding expense reduce more than 60%.
Present air-cushion type belt conveyor both domestic and external owing to can't successfully solve the plane turning problem, in extra long distance is carried, have to adopt segmentation method in the turning highway section.This segmentation method, the material that needs earlier leading portion to be carried is poured in the feed bin, passes through a series of control system again, changes the material in the feed bin over to back segment and carries.Adopt segmentation method, need configuration bearing material storehouse, material rotaring machine structure, gate valve, conveyor screw, control instrument, equipment such as controlling point is set, the equipment of increase and construction cost are about 60-70 more than ten thousand yuan.The method of the excessive link of this increase has increased equipment cost and can't realize carrying high-speed cruising, if speed matches the stagnant phenomenon of bank can not take place also.Simultaneously, the process of batch turning also can produce loss to material itself, and the value of material is reduced.With the fortune coal is example, and the moderate coal cinder of granularity is after becoming coal dust, and selling price will reduce 10-20% at least.Therefore, need a kind of belt conveyor that has turning device badly and solve the problems referred to above.
[utility model content]
Technical problem to be solved in the utility model is to provide a kind of energy cost-cutting, and can realize carrying the leather belt conveying plane turning device of high-speed cruising.
For solving the problems of the technologies described above, the contriver has carried out a series of research, its technical scheme is as follows: a kind of leather belt conveying plane turning device, comprise straight transportation section and turning transportation section, the place is provided with air chamber in the turning transportation section, the upper end of air chamber is provided with cushion slot, and the percent opening of cushion slot inboard, described turning transportation section is 1.5-3 a times of cushion slot outside percent opening.
Place, described straight transportation section is provided with air chamber, and the cushion slot of described air chamber upper end is symmetrical distribution along belt centerline, and the percent opening at its cushion slot both sides and middle part is 1.5-3 a times of other parts percent opening.
The air chamber of described turning transportation section is an arc, and the radius of curvature of described cushion slot inboard is less than the radius of curvature in the cushion slot outside.
The radius of curvature in the cushion slot outside of described turning transportation section is identical with the radius of curvature at cushion slot middle part, and the radius of curvature of described cushion slot inboard is less than the radius of curvature in the cushion slot outside.
Place, turning transportation section, the radius of curvature of cushion slot inboard is 0.1-0.5 a times of cushion slot lateral curvature radius.
Described conveying bandwidth is 1-2m, and the cushion slot angle is 25 °-60 °, and the radius of curvature in the described cushion slot outside is 450mm-2300mm.
When the plane turning radius of curvature at turning transportation section place increased or reduces, the radius of curvature of cushion slot inboard, turning also increased thereupon or reduces.
The starting point section of described turning transportation section is provided with friction gear.
Described friction gear comprises driving drum, the driving band that rotates around driving drum and the driving motor that drives the driving drum rotation, and described driving band is fitted with the carrying band.
The beneficial effects of the utility model are:
Be provided with cushion slot in the turning transportation section, the dish groove number of aperture of air chamber inboard is greater than outside disc groove number of aperture; During turning, the load-transfer device inboard stress that is squeezed has and runs straight characteristic, cause the friction between air chamber and load-transfer device easily,, strengthened the tolerance of air chamber negative camber by reasonable Arrangement to the perforate of dish groove, better controlled, stablize side direction bend power, equilibrium centrifugation power.The initial segment at flat bank has disposed auxiliary friction gear, has reduced the tension force of turning starting point, therefore, can further reduce radius of curvature, can make angle of turn become bigger.Adopt above-mentioned technological means, can realize the plane turning that belt is carried.
[description of drawings]
Fig. 1 is the utility model band conveyor load-transfer device planar view;
Fig. 2 is the straight transportation section of a utility model cushion slot schematic cross-section;
Fig. 3 is the utility model turning transportation section cushion slot schematic cross-section;
Fig. 4 is the straight transportation section of a utility model cushion slot perforate distributed architecture scheme drawing;
Fig. 5 is the utility model turning transportation section cushion slot perforate distributed architecture scheme drawing;
Fig. 6 is the plan sketch that disposes auxiliary friction gear;
Fig. 7 is the friction gear structural representation among Fig. 6;
Fig. 8 is the utility model force analysis figure.
In the accompanying drawing, the list of parts of each label representative is as follows:
1, load-transfer device 2, air chamber 3, cushion slot inboard 4, the cushion slot outside 5, friction gear 6, driving drum 7, driving band 8, cushion slot middle part
[specific embodiment]
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
The utility model can be used for the belt conveying equipment that straight transportation section is non-air-cushion type equally, is provided with gas cell device and can realizes turning function between the load-transfer device up and down 1 of turning transportation section.Below being primarily aimed at the air-cushion type belt conveyer is described.
As shown in Figure 1, be the planar structure scheme drawing that has the turning transportation section, wherein straight transportation section cushion slot cross section structure as shown in Figure 2, turning transportation section cushion slot cross section structure is as shown in Figure 3.Wherein, the cross-sectional plane of cushion slot is an arc, straight cushion slot cross section, transportation section is symmetrical distribution, the left and right sides, cushion slot cross section, turning transportation section is asymmetric, wherein the radius of curvature in the cushion slot outside 4 is identical with the radius of curvature at cushion slot middle part 8, the radius of curvature R 2 of cushion slot inboard 3 is less than the radius of curvature R 1 in the cushion slot outside 4, and promptly the height of cushion slot inboard 3 will be higher than the height in the cushion slot outside 4.The scope of setting bandwidth and be 1～2 meter, dish groove angle θ and be 25～60 degree, lateral curvature radius R 1 scope 450mm～2300mm, inboard radius of curvature R 2 is (0.1～0.5) R1.The plane turning radius of curvature ρ of transportation section of wherein turning changes consistent with the radius of curvature R 2 of inboard 3 camber lines of cushion slot, promptly, when the plane turning radius of curvature ρ at place, turning transportation section increases or reduces, the radius of curvature R 2 of cushion slot inboard, turning 3 also increases thereupon or reduces, and specifically can find out in the observed data from table 1.Under the high-speed cruising situation, because the outer end of cushion slot inboard, transportation section 3 is elevated, can avoid the effect of stress to make air chamber 2 produce friction with load-transfer device 1 because cushion slot inboard 3 is squeezed, the amount of raising of inboard 3 outer ends of cushion slot changes along with the variation of the radius of curvature ρ of angle of turn β, angle of turn β is big more, and the amount of raising of inboard 3 outer ends of cushion slot is also big more.
Fig. 4 is straight transportation section cushion slot perforate distribution schematic diagram, as can be seen from the figure, the perforate of straight transportation section cushion slot is distributed as symmetrical structure, and both sides and middle part percent opening are bigger, the percent opening of other positions is less, and the percent opening at both sides and middle part is 1.5-3 a times of other position percent openings.
Fig. 5 is a turning transportation section cushion slot perforate distribution schematic diagram, as can be seen from the figure, the percent opening at 4 places is identical with the percent opening of straight both sides, transportation section outside the cushion slot of turning transportation section, and the percent opening at inboard 3 places of cushion slot is 1.5-3 a times of the percent opening at 4 places outside the cushion slot.This kind perforate is distributed with and is beneficial to the adjustment gas film pressure, makes this section load-transfer device 1 form antagonistic force under the combined action of the air-flow of pore ejection and gas film pressure, is used for the centnifugal force that produced on load-transfer device when balance is turned, helps the steady trun of load-transfer device 1.
Fig. 6 is that the starting point section at flat bank disposes subsidiary engine friction gear 5, can apply a propulsive effort to the load-transfer device 1 of turning transportation section by this device, reduce the suffered tension force of turning initial point, owing to reduced the suffered tension force of load-transfer device turning starting point, and then can suitably reduce the radius of curvature of turnaround section, increase angle of turn β, help the turning of load-transfer device.Fig. 7 is the friction gear structure diagram, driving band 7 that comprise driving drum 6, rotates around driving drum and the driving motor that drives the driving drum rotation, and described driving band 7 is fitted with load-transfer device 1, is provided with air chamber between the driving band 7 up and down.
Be the computational analysis of relevant turning transportation section radius of curvature below, as shown in Figure 8:
Air-cushion Type Belt Conveyer is carried out force analysis under the flat bank situation, required propulsive effort computing formula is as follows during material operation 1m:
S＝Qtgα+W＝GV
2/gρ tg(180/πρ)+(P0+P1)μ`
Annotate: α is material operation 1m rotational angle α=360/ π D=180/ π ρ
ρ is a radius of curvature
Q is material centnifugal force Q=MV
2/ ρ (V is a linear velocity)=G V
2/ g ρ
W is running resistance W=G μ ` (μ ` is a friction coefficient)
S is that material operation 1m needs propulsive effort
G=material 1m weight+adhesive tape 1m weight=P0+P1
From said conveyer belt 1 required propulsive effort computing formula as can be seen, for the belt conveyer that has plane turning, in course of conveying, on turn increases by an action of centrifugal force again, load-transfer device 1 herein has stretching trend, the size of the required propulsive effort of its run unit length is with the weight of material, delivery speed and rotational angle are relevant, for the material conveyor that per hour moves fixed weight, the big more required propulsive effort of rotational angle is also big more, and the size of rotational angle is relevant with the turning radius of curvature, the big more rotational angle of radius of curvature is more little, therefore the belt conveyer for big angle of turn needs on turn to increase an antagonistic force, is used for offsetting suffered action of centrifugal force.Percent opening by reasonable distribution turning transportation section cushion slot, gas film pressure produces the antagonistic force of offsetting suffered centnifugal force on the load-transfer device 1 of turning transportation section, also can be used for replenishing the propulsive effort of turnaround section in addition by auxiliary friction gear is set in the The initial segment of turning, reduce the tension force of turning transportation section initial point load-transfer device, be convenient to realize the pulsation-free turning.
In the table 1 the radius of curvature ρ of turning transportation section, and several groups of observed datas between the inboard radius of curvature R 2 of turning cushion slot, lateral curvature radius R 1:
| Bandwidth (mm) | Belt speed (m/s) | Freight volume (kg/h) | R1(mm) | R2(mm) | Turning radius of curvature ρ (m) |
| 1000 | 6 | 2480 | 820 | 246 | 150 |
| 1200 | 6 | 3600 | 980 | 294 | 200 |
| 1400 | 6 | 4960 | 1150 | 345 | 300 |
| 1600 | 6 | 6640 | 1310 | 393 | 360 |
| 1800 | 6 | 8400 | 1475 | 442.5 | 600 |
| 2000 | 6 | 10560 | 1640 | 492 | 900 |
Can see by above-mentioned test figures, adopt the technical solution of the utility model after, successful realization the plane turning of belt conveying.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1, a kind of leather belt conveying plane turning device, comprise straight transportation section and turning transportation section, the place is provided with air chamber in the turning transportation section, and the upper end of air chamber is provided with cushion slot, it is characterized in that: the percent opening of cushion slot inboard, described turning transportation section is 1.5-3 a times of cushion slot outside percent opening.
2, plane turning device according to claim 1, it is characterized in that: place, described straight transportation section is provided with air chamber, the cushion slot of described air chamber upper end is symmetrical distribution along belt centerline, and the percent opening at its cushion slot both sides and middle part is 1.5-3 a times of other parts percent opening.
3, plane turning device according to claim 1 is characterized in that: the air chamber of described turning transportation section is an arc, and the radius of curvature of described cushion slot inboard is less than the radius of curvature in the cushion slot outside.
4, plane turning device according to claim 3, it is characterized in that: the radius of curvature in the cushion slot outside of described turning transportation section is identical with the radius of curvature at cushion slot middle part, and the radius of curvature of described cushion slot inboard is less than the radius of curvature in the cushion slot outside.
5, according to claim 3 or 4 described plane turning devices, it is characterized in that: at place, turning transportation section, the radius of curvature of cushion slot inboard is 0.1-0.5 a times of cushion slot lateral curvature radius.
6, plane turning device according to claim 5 is characterized in that: described conveying bandwidth is 1-2m, and the cushion slot angle is 25 °-60 °, and the radius of curvature in the described cushion slot outside is 450mm-2300mm.
7, according to claim 3 or 4 described plane turning devices, it is characterized in that: when the plane turning radius of curvature at turning transportation section place increased or reduces, the radius of curvature of cushion slot inboard, turning also increased thereupon or reduces.
8, according to the arbitrary described plane turning device of claim 1-4, it is characterized in that: the starting point section of described turning transportation section is provided with friction gear.
9, plane turning device according to claim 8 is characterized in that: described friction gear comprises driving drum, the driving band that rotates around driving drum and the driving motor that drives the driving drum rotation, and described driving band is fitted with the carrying band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200790518U CN201161813Y (en) | 2008-02-29 | 2008-02-29 | Belt transportation plane turning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200790518U CN201161813Y (en) | 2008-02-29 | 2008-02-29 | Belt transportation plane turning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201161813Y true CN201161813Y (en) | 2008-12-10 |
Family
ID=40182754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200790518U Expired - Lifetime CN201161813Y (en) | 2008-02-29 | 2008-02-29 | Belt transportation plane turning apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201161813Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628855A (en) * | 2017-02-20 | 2017-05-10 | 攀枝花攀煤矿山机械制造有限公司 | Turning device for belt conveyer |
-
2008
- 2008-02-29 CN CNU2008200790518U patent/CN201161813Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628855A (en) * | 2017-02-20 | 2017-05-10 | 攀枝花攀煤矿山机械制造有限公司 | Turning device for belt conveyer |
| CN106628855B (en) * | 2017-02-20 | 2019-03-22 | 攀枝花攀煤矿山机械制造有限公司 | Turning device for belt conveyer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081210 |