CN103043374B - Chain tension adjusting device and coal mining load transfer device - Google Patents
Chain tension adjusting device and coal mining load transfer device Download PDFInfo
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- CN103043374B CN103043374B CN201210571061.4A CN201210571061A CN103043374B CN 103043374 B CN103043374 B CN 103043374B CN 201210571061 A CN201210571061 A CN 201210571061A CN 103043374 B CN103043374 B CN 103043374B
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- tension adjusting
- chain tension
- adjusting device
- wheel gear
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Abstract
The present invention proposes a kind of chain tension adjusting device and coal mining load transfer device, this chain tension adjusting device comprises housing and is arranged at actuating device, worm-and-wheel gear and the idle pulley in described housing, the input shaft of described worm-and-wheel gear is connected with the output shaft of described actuating device, and described idle pulley matches with the output shaft of described worm-and-wheel gear.This chain tension adjusting device adopts worm-and-wheel gear to instead of existing brake motor, because worm-and-wheel gear has the performance of self-locking, can realize the braking to actuating device equally.And worm-and-wheel gear has deceleration and stopping performance safety compared to existing brake motor, reliably, can reduce the incidence of chain tension adjusting device overall failure, can improve the stability of chain tension adjusting device.In addition, the structure of this worm-and-wheel gear is comparatively simple compared to existing brake motor structure, and price is also relatively cheap, therefore can make that this chain tension adjusting device structure is simplified, cost reduces.
Description
Technical field
The present invention relates to coal mining load transfer device field, particularly relate to a kind of chain tension adjusting device and there is the coal mining load transfer device of this chain tension adjusting device.
Background technology
At present, coal mining load transfer device, the chain tension adjusting device as slat conveyer, coal plough is normally made up of the low pressure brake motor of high-pressure brake motor or cooperation reducer unit, carries out the braking in tight chain process by the drg that brake motor carries.
But current high-pressure brake motor technologies is still immature, be directed to slat conveyer and the special high-pressure brake motor of coal plough is not also succeeded in developing.In addition, low pressure brake motor needs first just to enter motor through reducer unit decompression and brakes, because pressure relief ranges is excessive, need through multi-step pressure reduction, be difficult to ensure post-decompression pressure stability, therefore easily cause low pressure brake motor drg to damage, reducer unit is easy et out of order also, and overall failure rate is very high.In addition, reducer unit structure is comparatively complicated and expensive, adds the manufacturing cost of chain tension adjusting device.
Summary of the invention
In order to overcome above-mentioned defect and the deficiency of prior art, the object of the present invention is to provide the chain tension adjusting device that a kind of reliability is higher, structure simple, manufacturing cost is lower, this chain tension adjusting device comprises housing and is arranged at actuating device, worm-and-wheel gear and the idle pulley in described housing, the input shaft of described worm-and-wheel gear is connected with the output shaft of described actuating device, and described idle pulley matches with the output shaft of described worm-and-wheel gear.
Further, the lead angle of described worm screw is less than the equivalent friction angle between the worm gear teeth that engages with it.
Further, described housing comprises rotary support and rotary support mount pad, and described rotary support and described rotary support mount pad are hinged.
Further, described actuating device can be HM Hydraulic Motor or motor.
The present invention also provides a kind of coal mining load transfer device being provided with described chain tension adjusting device.
Further, described coal mining load transfer device is slat conveyer, coal plough.
Chain tension adjusting device of the present invention adopts worm-and-wheel gear to instead of existing brake motor, because worm-and-wheel gear has the performance of self-locking, can realize the braking to actuating device equally.And worm-and-wheel gear has deceleration and stopping performance safety compared to existing brake motor, reliably, can reduce the incidence of chain tension adjusting device overall failure, can improve the stability of chain tension adjusting device.In addition, the structure of this worm-and-wheel gear is comparatively simple compared to existing brake motor structure, and price is also relatively cheap, therefore can make that this chain tension adjusting device structure is simplified, cost reduces.
Coal mining load transfer device provided by the invention, because above-mentioned chain tension adjusting device has above-mentioned technique effect, therefore, the coal mining load transfer device being provided with this chain tension adjusting device also has corresponding technique effect.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Figure 1 shows that the structural representation of the chain tension adjusting device of the embodiment of the present invention;
Figure 2 shows that the hydraulic diagram of the chain tension adjusting device of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the invention provides a kind of chain tension adjusting device, this chain tension adjusting device is applied in the coal mining such as slat conveyer, coal plough load transfer device.
This chain tension adjusting device comprises rotary support mount pad 1, rotary support 2, actuating device 3, worm-and-wheel gear 4 and idle pulley 5.
This rotary support mount pad 1 is arranged on the cover body of coal mining load transfer device, and this rotary support mount pad 1 is for carrying this rotary support 2 and interior transmission device etc. thereof.
This rotary support 2 is connected with this rotary support mount pad 1.Preferably, this rotary support 2 is hinged with this rotary support mount pad 1.Therefore, this rotary support 2 can rotate relative to this rotary support mount pad 1, and such structure can be convenient to being separated and coordinating of the inner driver element of this rotary support 2 (idle pulley 5) and tight sprocket gear.
This actuating device 3 is arranged on this rotary support 2, and this actuating device 3 is moment of torsion required when this chain tension adjusting device provides tight chain.Refer to Fig. 2, this actuating device 3 can be HM Hydraulic Motor, motor etc.
This worm-and-wheel gear 4 is arranged in this rotary support 2.The input shaft of this worm-and-wheel gear 4 is connected with the output shaft of this actuating device 3.Because worm-and-wheel gear has self-locking property, so the alternative existing brake motor of this worm-and-wheel gear 4 and the braking realized this actuating device 3.
Wherein, this worm screw is as the input shaft of this worm-and-wheel gear 4, and it is connected with the output shaft of this actuating device 3; This worm gear is as the output shaft of this worm-and-wheel gear 4.
Preferably, the lead angle of the worm screw in this worm-and-wheel gear 4 is less than the equivalent friction angle between the worm gear teeth that engages with it.With this understanding, this worm-and-wheel gear 4 has preferably self-locking performance, can realize reverse self-locking function, namely can only drive worm gear by worm screw, and can not drive worm screw by worm gear.Therefore, the reverse self-locking that this worm-and-wheel gear 4 has itself can realize the braking to this actuating device 3, and, compared to the easy et out of order of existing brake motor, the deceleration and stopping performance of this worm-and-wheel gear 4 pairs of actuating devices 3 safely, reliably, the incidence of chain tension adjusting device overall failure can be reduced, improve the stability of chain tension adjusting device.
This idle pulley 5 is arranged in this rotary support 2.This idle pulley 5 matches with this worm-and-wheel gear 4 output shaft.This idle pulley 5, for being meshed with the tight sprocket gear (not shown) in coal mining load transfer device, provides moment of torsion by this chain tension adjusting device to this tight sprocket gear, then carries out tensioning by this tight sprocket gear to chain.
Above-mentioned by this chain tension adjusting device tensioning is carried out to chain and braking procedure as follows:
This actuating device 3 is opened and is driven this worm-and-wheel gear 4 and the idle pulley 5 that matches with this worm-and-wheel gear 4 rotates.The moment of torsion that this chain tension adjusting device produces is passed to the tight sprocket gear be meshed with this idle pulley 5 by this idle pulley 5, and this tight sprocket gear is rotated and carries out tensioning to chain.When chain tension to a certain extent after, this actuating device 3 cuts out.Now, this chain tension adjusting device no longer transmits moment of torsion to this tight sprocket gear.Because this worm-and-wheel gear 4 has self-locking property, this tight sprocket gear cannot be rotated backward, thus make this chain be in tensioning state, make this coal mining load transfer device safe in operation, reliable.
Be appreciated that this rotary support mount pad 1 and this rotary support 2 are considered as a housing jointly, this actuating device 3, worm-and-wheel gear 4 and idle pulley 5 are installed in this housing.
Chain tension adjusting device provided by the present invention adopts worm-and-wheel gear to instead of existing brake motor, because worm-and-wheel gear has the performance of self-locking, can realize the braking to actuating device equally.And worm-and-wheel gear has deceleration and stopping performance safety compared to existing brake motor, reliably, can reduce the incidence of chain tension adjusting device overall failure, can improve the stability of chain tension adjusting device.In addition, the structure of this worm-and-wheel gear is comparatively simple compared to existing brake motor structure, and price is also relatively cheap, therefore can make that this chain tension adjusting device structure is simplified, cost reduces.
The present invention also provides a kind of coal mining load transfer device with above-mentioned chain tension adjusting device, because above-mentioned chain tension adjusting device has above-mentioned technique effect, therefore, the coal mining load transfer device being provided with this chain tension adjusting device also should possess corresponding technique effect, its specific implementation process is similar to the above embodiments, therefore does not repeat.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a chain tension adjusting device, it is characterized in that, comprise housing and be arranged at actuating device (3), worm-and-wheel gear (4) and the idle pulley (5) in described housing, the input shaft of described worm-and-wheel gear (4) is connected with the output shaft of described actuating device (3), and described idle pulley (5) matches with the output shaft of described worm-and-wheel gear (4); Described housing comprises rotary support (2) and rotary support mount pad (1), and described rotary support (2) and described rotary support mount pad (1) are hinged.
2. chain tension adjusting device according to claim 1, is characterized in that, the lead angle of described worm screw is less than the equivalent friction angle between the worm gear teeth that engages with it.
3. chain tension adjusting device according to claim 1 and 2, is characterized in that, described actuating device (3) can be HM Hydraulic Motor or motor.
4. a coal mining load transfer device, is characterized in that, described coal mining load transfer device is provided with the chain tension adjusting device according to any one of claim 1-3.
5. coal mining load transfer device according to claim 4, is characterized in that, described coal mining load transfer device is slat conveyer, coal plough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210571061.4A CN103043374B (en) | 2012-12-25 | 2012-12-25 | Chain tension adjusting device and coal mining load transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210571061.4A CN103043374B (en) | 2012-12-25 | 2012-12-25 | Chain tension adjusting device and coal mining load transfer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103043374A CN103043374A (en) | 2013-04-17 |
| CN103043374B true CN103043374B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210571061.4A Active CN103043374B (en) | 2012-12-25 | 2012-12-25 | Chain tension adjusting device and coal mining load transfer device |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277241A (en) * | 2013-05-28 | 2013-09-04 | 宁夏天地奔牛实业集团有限公司 | Integrated radial piston motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1198024A (en) * | 1967-03-18 | 1970-07-08 | Voith Gmbh J M | Automatically-Adjusting Belt-Tensioning Device for Revolving Endless Belts |
| SU1133186A1 (en) * | 1983-10-28 | 1985-01-07 | Предприятие П/Я А-3226 | Device for tensioning conveyor belt |
| CN201089632Y (en) * | 2007-09-18 | 2008-07-23 | 詹少钧 | Worm-gear self-locking conveying-belt loosening and tightening machine |
| CN201264811Y (en) * | 2008-04-14 | 2009-07-01 | 车新宁 | Variable frequency automatic tension type winch with self locking function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7992706B2 (en) * | 2008-11-11 | 2011-08-09 | Siemens Industry, Inc. | Limited force, self locking tensioner |
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2012
- 2012-12-25 CN CN201210571061.4A patent/CN103043374B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1198024A (en) * | 1967-03-18 | 1970-07-08 | Voith Gmbh J M | Automatically-Adjusting Belt-Tensioning Device for Revolving Endless Belts |
| SU1133186A1 (en) * | 1983-10-28 | 1985-01-07 | Предприятие П/Я А-3226 | Device for tensioning conveyor belt |
| CN201089632Y (en) * | 2007-09-18 | 2008-07-23 | 詹少钧 | Worm-gear self-locking conveying-belt loosening and tightening machine |
| CN201264811Y (en) * | 2008-04-14 | 2009-07-01 | 车新宁 | Variable frequency automatic tension type winch with self locking function |
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| CN103043374A (en) | 2013-04-17 |
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