CN104925463A - Tensioning device for conveying chain in spiral conveyor - Google Patents
Tensioning device for conveying chain in spiral conveyor Download PDFInfo
- Publication number
- CN104925463A CN104925463A CN201510309444.8A CN201510309444A CN104925463A CN 104925463 A CN104925463 A CN 104925463A CN 201510309444 A CN201510309444 A CN 201510309444A CN 104925463 A CN104925463 A CN 104925463A
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- CN
- China
- Prior art keywords
- tensioning
- shaft
- conveyer chain
- conveyor screw
- acting cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/44—Belt or chain tensioning arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Drives For Endless Conveyors (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention discloses a tensioning device for a conveying chain in a spiral conveyor. The device comprises a mounting shaft of which two ends are respectively movably mounted on a mounting rack; a tensioning shaft is arranged in parallel with the mounting shaft; two ends of a rotating bracket are respectively connected to the mounting shaft and the tensioning shaft; a tensioning chain wheel is arranged on the tensioning shaft and engages against the conveying chain; the rotating bracket is connected with a piston rod of a single-action cylinder, wherein the single-action cylinder is mounted on a mounting rack above the rotating bracket and communicated with an air source through an air feeding tube; a solenoid valve is arranged on the air feeding tube; a piston rod of the single-action cylinder downwards extends to drive the rotating bracket to drive the tensioning shaft to downwards rotate around the mounting shaft, and therefore, the tensioning chain wheel on the tensioning shaft can be driven to downwards move to tension the conveying chain. The device has the advantages that the tensioning adjusting can be automatically carried out, and moreover, the conveying chain can be kept in a tensioning state all the time during the working process of the spiral conveyor.
Description
Technical field
The present invention relates to conveyor screw technical field, be specifically related to the stretching device of conveyer chain in conveyor screw.
Background technology
Conveyor screw because its floor area is little, conveying flexibly and the advantage that conveys goods can be carried out continuously, be therefore widely used in fields such as packagings for foodstuff.The bottom of conveyor screw intermediate plate is provided with conveyer chain, conveyer chain passes through chain wheel drive by motor, the stretching device for tensioning conveyer chain is also provided with in conveyor screw, traditional stretching device needs to be regulated by manual, regulate very inconvenient, and cannot guarantee that conveyer chain remains at tensioning state in the working process of conveyor screw.
Summary of the invention
The present invention needs the problem solved: provide a kind of and can automatically adjust and can guarantee that in conveyor screw operational process, conveyer chain remains the stretching device of conveyer chain in the conveyor screw of tensioning.
For solving the problem, the technical solution used in the present invention is: the stretching device of conveyer chain in conveyor screw, comprise: erecting frame, the two ends of installation shaft are movably arranged on erecting frame respectively by bearing, tensioning shaft is parallel to installation shaft and arranges, swinging mounting is provided with between installation shaft and tensioning shaft, the two ends of swinging mounting are connected on installation shaft and tensioning shaft, described tensioning shaft is provided with idler sprocket, idler sprocket engagement is resisted against on conveyer chain, swinging mounting is connected with the piston rod of single-acting cylinder, described single-acting cylinder is arranged on the erecting frame above swinging mounting, be connected by air inlet pipe between single-acting cylinder with source of the gas, described air inlet pipe is provided with electromagnetic valve, the piston rod of single-acting cylinder extends downwards and swinging mounting can be driven to drive tensioning shaft to rotate around installation shaft, thus the idler sprocket ordered about on tensioning shaft moves downward and makes conveyer chain tensioning.
Further, the stretching device of conveyer chain in aforesaid conveyor screw, wherein, the air inlet pipe between source of the gas and electromagnetic valve is provided with can the reducing valve of adjustments of gas pressure.
Further; the stretching device of conveyer chain in aforesaid conveyor screw; wherein; air inlet pipe between electromagnetic valve and reducing valve is provided with pressure detection switch; when pressure detection switch detects that pressure in air inlet pipe is lower than setting value; this signal can be sent to the controller in conveyor screw by pressure detection switch, thus makes controller send halt instruction.
Further, the stretching device of conveyer chain in aforesaid conveyor screw, wherein, erecting frame above tensioning shaft is provided with proximity switch, the piston rod of single-acting cylinder is provided with induction support, the upper-end part of driving of induction support is in the detection range of proximity switch, when conveyer chain ruptures, the piston rod of single-acting cylinder is stretched to range downwards, thus order about the detection range that induction support moves downwardly to the upper end disengaging proximity switch of induction support, this signal will be sent to the controller in conveyor screw by proximity switch, thus make controller send halt instruction.
Advantage of the present invention is: automatically can carry out tensioning adjustment, and can guarantee that conveyer chain remains tensioning state in the working process of conveyor screw, thus substantially increases operation stability and the transport efficiency of conveyor screw.
Accompanying drawing explanation
Fig. 1 is the structural representation of the stretching device of conveyer chain in conveyor screw of the present invention.
Fig. 2 is the sectional structure schematic diagram in A-A direction in Fig. 1.
Fig. 3 is the gas circuit connection structure schematic diagram in Fig. 2 on single-acting cylinder.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, the present invention is described in further detail.
As Fig. 1, Fig. 2, shown in Fig. 3, the stretching device of conveyer chain in conveyor screw, comprise: erecting frame 1, the two ends of installation shaft 2 are movably arranged on erecting frame 1 respectively by bearing, tensioning shaft 3 is parallel to installation shaft 2 and arranges, swinging mounting 4 is provided with between installation shaft 2 and tensioning shaft 3, the two ends of swinging mounting 4 are connected on installation shaft 2 and tensioning shaft 3, described tensioning shaft 3 is provided with idler sprocket 5, idler sprocket 5 engagement is resisted against on conveyer chain 6, swinging mounting 4 is connected with the piston rod of single-acting cylinder 7, single-acting cylinder 7 is widely used in mechanical field, the side of single-acting cylinder 7 cylinder body inner carrier is gas chamber, piston rod in the cylinder body of piston opposite side is provided with Compress Spring, after pressure gas enters gas chamber, under the effect of the gaseous tension in gas chamber, piston moves to Compress Spring side, thus piston rod is outwards extended and Compress Spring, until piston both sides stress balance.Described single-acting cylinder 7 is arranged on the erecting frame 1 above swinging mounting 4, single-acting cylinder 7 is connected by air inlet pipe 8 with between source of the gas, described air inlet pipe 8 is provided with electromagnetic valve 9, and the air inlet pipe 8 between source of the gas and electromagnetic valve 9 is provided with can the reducing valve 10 of adjustments of gas pressure size.In the present embodiment; air inlet pipe 8 between electromagnetic valve 9 and reducing valve 10 is provided with pressure detection switch 11; when pressure detection switch 11 detects that pressure in air inlet pipe 8 is lower than setting value; this signal can be sent to the controller in conveyor screw by pressure detection switch 11, thus makes controller send halt instruction.The piston rod of single-acting cylinder 7 extends downwards and swinging mounting 4 can be driven to drive tensioning shaft 3 to rotate around installation shaft 2, thus the idler sprocket 5 ordered about on tensioning shaft 3 moves downward and makes conveyer chain 6 tensioning.In the present embodiment; erecting frame 1 above tensioning shaft 3 is provided with proximity switch 12; the piston rod of single-acting cylinder 7 is provided with induction support 13; the upper-end part of driving of induction support 13 is in the detection range of proximity switch 12; when conveyer chain 6 ruptures; the piston rod of single-acting cylinder 7 then can be stretched to range downwards; thus order about the detection range that induction support 13 moves downwardly to the upper end disengaging proximity switch 12 of induction support 13; this signal will be sent to the controller in conveyor screw by proximity switch 12, thus makes controller send halt instruction.
Principle of work is as follows: during work, electromagnetic valve 9 valve opening makes the pressurized air of band setting pressure in source of the gas enter in the cylinder body of single-acting cylinder 7 through reducing valve 10 from air inlet pipe 8, in cylinder body gaseous tension effect under the piston rod of single-acting cylinder 7 extend downwards, ordering about swinging mounting 4 drives tensioning shaft 3 to rotate around installation shaft 2, thus the idler sprocket 5 ordered about on tensioning shaft 3 moves downward and makes conveyer chain 6 be in tensioning state, the piston now in single-acting cylinder 7 cylinder body is in stress balance state.In conveyor screw working process, once conveyer chain 6 occurs to loosen, in single-acting cylinder 7 cylinder body gaseous tension effect under, piston can move to the side of Compress Spring at once until the piston rod of single-acting cylinder 7 orders about idler sprocket 5 moves downwardly to and make conveyer chain 6 continue to keep tensioning state, so just ensure in the whole working process of conveyor screw, conveyer chain remains at tensioning state, thus substantially increases conveying stability and the transport efficiency of conveyor screw; The tensioning mode of this conveyer chain 6 is also very convenient, automatically can carry out tensioning adjustment.Because the pressurized air of source of the gas can first through reducing valve 10, reducing valve 10 can regulate the gaseous tension size entered in single-acting cylinder 7, thus can control the size of conveyer chain 6 tensile force, so just can effectively avoid the situation causing because tensile force is excessive conveyer chain 6 to rupture or cause because tensile force is too small conveyer chain 6 to loosen to occur.In conveyor screw working process, once the fault that conveyer chain 6 fracture occurs, in single-acting cylinder 7 cylinder body gaseous tension effect under, the piston rod of single-acting cylinder 7 can be stretched to range downwards, thus dynamic answers support 13 to move downwardly to the induction upper end of support 13 and the detection range of proximity switch 12 is separated, now this signal will be sent to the controller in conveyor screw by detector switch 12, controller is made to send halt instruction, thus conveyor screw is quit work, so just effectively prevent the conveyor screw when conveyer chain 6 ruptures to continue run and cause the accident of equipment or cargo damage to occur.When causing the gaseous tension in air inlet pipe 8 to be less than setting value when source of the gas et out of order, this signal can be sent to the controller in conveyor screw by pressure detection switch 11, thus makes controller send halt instruction, and conveyor screw is quit work.The effect arranging pressure detection switch 11 is: avoid avoiding conveyor screw under conveyer chain 6 loosens state to run under gas path failure state, namely, thus effectively can avoid the generation of the conveyor screw operating troubles caused because conveyer chain loosens.
Claims (4)
1. the stretching device of conveyer chain in conveyor screw, comprise: erecting frame, it is characterized in that: the two ends of installation shaft are movably arranged on erecting frame respectively by bearing, tensioning shaft is parallel to installation shaft and arranges, swinging mounting is provided with between installation shaft and tensioning shaft, the two ends of swinging mounting are connected on installation shaft and tensioning shaft, described tensioning shaft is provided with idler sprocket, idler sprocket engagement is resisted against on conveyer chain, swinging mounting is connected with the piston rod of single-acting cylinder, described single-acting cylinder is arranged on the erecting frame above swinging mounting, be connected by air inlet pipe between single-acting cylinder with source of the gas, described air inlet pipe is provided with electromagnetic valve, the piston rod of single-acting cylinder extends downwards and swinging mounting can be driven to drive tensioning shaft to rotate around installation shaft, thus the idler sprocket ordered about on tensioning shaft moves downward and makes conveyer chain tensioning.
2. the stretching device of conveyer chain in conveyor screw according to claim 1, is characterized in that: the air inlet pipe between source of the gas and electromagnetic valve is provided with can the reducing valve of adjustments of gas pressure.
3. the stretching device of conveyer chain in conveyor screw according to claim 2; it is characterized in that: the air inlet pipe between electromagnetic valve and reducing valve is provided with pressure detection switch; when pressure detection switch detects that pressure in air inlet pipe is lower than setting value; this signal can be sent to the controller in conveyor screw by pressure detection switch, thus makes controller send halt instruction.
4. the stretching device of conveyer chain in conveyor screw according to claim 1 and 2, it is characterized in that: the erecting frame above tensioning shaft is provided with proximity switch, the piston rod of single-acting cylinder is provided with induction support, the upper-end part of driving of induction support is in the detection range of proximity switch, when conveyer chain ruptures, the piston rod of single-acting cylinder is stretched to range downwards, thus order about the detection range that induction support moves downwardly to the upper end disengaging proximity switch of induction support, this signal will be sent to the controller in conveyor screw by proximity switch, thus make controller send halt instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309444.8A CN104925463B (en) | 2015-06-09 | 2015-06-09 | The strainer of carrier chain in conveying worm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309444.8A CN104925463B (en) | 2015-06-09 | 2015-06-09 | The strainer of carrier chain in conveying worm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104925463A true CN104925463A (en) | 2015-09-23 |
| CN104925463B CN104925463B (en) | 2017-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510309444.8A Active CN104925463B (en) | 2015-06-09 | 2015-06-09 | The strainer of carrier chain in conveying worm |
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| CN (1) | CN104925463B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692058A (en) * | 2016-03-07 | 2016-06-22 | 江苏新美星包装机械股份有限公司 | Double-channel type chain plate screw conveyor |
| CN112298929A (en) * | 2020-12-03 | 2021-02-02 | 中冶北方（大连）工程技术有限公司 | Constant force flexible tension device for conveyor belt |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3463022A (en) * | 1967-10-24 | 1969-08-26 | Caterpillar Tractor Co | Chain adjuster |
| CN201626690U (en) * | 2009-11-13 | 2010-11-10 | 赵天喜 | Pneumatic tensioning device |
| JP2011098820A (en) * | 2009-11-06 | 2011-05-19 | Komatsu Ltd | Chain conveyor device |
| CN202784648U (en) * | 2012-09-11 | 2013-03-13 | 邵阳纺织机械有限责任公司 | Conveying chain plate tensioning device |
| CN104444123A (en) * | 2014-11-24 | 2015-03-25 | 安徽理工大学 | Scraper chain adjusting device |
| CN104455255A (en) * | 2014-11-26 | 2015-03-25 | 江苏新美星包装机械股份有限公司 | Chain tensioning mechanism |
| CN204751299U (en) * | 2015-06-09 | 2015-11-11 | 江苏新美星包装机械股份有限公司 | Straining device of conveying chain among screw conveyer |
-
2015
- 2015-06-09 CN CN201510309444.8A patent/CN104925463B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3463022A (en) * | 1967-10-24 | 1969-08-26 | Caterpillar Tractor Co | Chain adjuster |
| JP2011098820A (en) * | 2009-11-06 | 2011-05-19 | Komatsu Ltd | Chain conveyor device |
| CN201626690U (en) * | 2009-11-13 | 2010-11-10 | 赵天喜 | Pneumatic tensioning device |
| CN202784648U (en) * | 2012-09-11 | 2013-03-13 | 邵阳纺织机械有限责任公司 | Conveying chain plate tensioning device |
| CN104444123A (en) * | 2014-11-24 | 2015-03-25 | 安徽理工大学 | Scraper chain adjusting device |
| CN104455255A (en) * | 2014-11-26 | 2015-03-25 | 江苏新美星包装机械股份有限公司 | Chain tensioning mechanism |
| CN204751299U (en) * | 2015-06-09 | 2015-11-11 | 江苏新美星包装机械股份有限公司 | Straining device of conveying chain among screw conveyer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692058A (en) * | 2016-03-07 | 2016-06-22 | 江苏新美星包装机械股份有限公司 | Double-channel type chain plate screw conveyor |
| CN112298929A (en) * | 2020-12-03 | 2021-02-02 | 中冶北方（大连）工程技术有限公司 | Constant force flexible tension device for conveyor belt |
| CN112298929B (en) * | 2020-12-03 | 2024-06-04 | 中冶北方（大连）工程技术有限公司 | Constant force flexible tension device for conveyor belt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104925463B (en) | 2017-08-25 |
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