CN104444124A - Chain tensioning device - Google Patents

Chain tensioning device Download PDF

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Publication number
CN104444124A
CN104444124A CN201410713375.2A CN201410713375A CN104444124A CN 104444124 A CN104444124 A CN 104444124A CN 201410713375 A CN201410713375 A CN 201410713375A CN 104444124 A CN104444124 A CN 104444124A
Authority
CN
China
Prior art keywords
tensioning
chain
frame
slide block
screw
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.)
Granted
Application number
CN201410713375.2A
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Chinese (zh)
Other versions
CN104444124B (en
Inventor
戴卫刚
王瑶瑶
蒋正兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miracle Automation Engineering Co Ltd
Original Assignee
Miracle Automation Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Miracle Automation Engineering Co Ltd filed Critical Miracle Automation Engineering Co Ltd
Priority to CN201410713375.2A priority Critical patent/CN104444124B/en
Publication of CN104444124A publication Critical patent/CN104444124A/en
Application granted granted Critical
Publication of CN104444124B publication Critical patent/CN104444124B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/44Belt or chain tensioning arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2812/00Indexing codes relating to the kind or type of conveyors
    • B65G2812/02Belt or chain conveyors
    • B65G2812/02267Conveyors having endless traction elements
    • B65G2812/02277Common features for chain conveyors
    • B65G2812/02326Chains, cables or the like
    • B65G2812/02336Accessories

Abstract

The invention relates to a chain tensioning device. A tensioning frame is supported by adjustable at the bottom of the tensioning frame, a slide block is installed on the tensioning frame and can slide horizontally, transversely and freely, and a tensioning wheel assembly is installed on the slide block. A tensioning screw assembly is arranged on the right of the tensioning wheel assembly and comprises a tensioning screw, a limiting plate, a volute spiral spring and a spring seat, wherein the spring seat is fixedly installed on the tensioning frame, the volute spiral spring is installed in the spring seat, the tensioning screw is arranged horizontally and transversely and penetrates through the center of the volute spiral spring, the front end of the tensioning screw is connected with the slide block and is locked by using a nut, the limiting plate is installed in the middle of the tensioning screw and is locked by using a nut, and the head end of the volute spiral spring ejects and presses the limiting plate from right to left. The chain tensioning device is simple and reasonable in structure and capable of saving effort during chain tensioning operation and conducting synchronous tensioning adjustment on chains of a double-chain conveyor, avoids the problems including chain jumping, chain dragging and abnormal chain abrasion caused by inconsistent tensioning forces of the chains of the double-chain conveyor and can provide overload and broken-chain protection.

Description

Chain stretching device
Technical field
The present invention relates to a kind of chain stretching device, specifically a kind of chain stretching device on double-chain conveyor, belongs to load transfer device technical field.
Background technology
Double-chain conveyor is used for skid delivery system, is generally applied to the workpiece conveying of workshop process section.Common double-chain conveyor one end is actuating device, and the other end is tightening device, orders about whole piece conveyer run along requirement logistics direction by certain speed by the operation of drive motor.
Tightening device on traditional double-chain conveyor generally adopts nut screw directly tight chain, tight chain operation is not only wasted time and energy, and easily because the asynchronous chain tension that causes of tight chain is inconsistent, easily occur jumping chain, drag chain and chain inordinate wear problem, impact conveying stability.In addition, the tightening device on traditional double-chain conveyor does not transship and chain rupture protection mechanism, easily causes safety misadventure, brings heavy losses to production.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art; a kind of chain stretching device is provided; it is simple and reasonable; tight chain rapid operation, synchronous tension adjustment can be carried out to the chain of double-chain conveyor; the jumping chain avoiding double-chain conveyor to cause because chain tension is inconsistent, drag chain and chain inordinate wear problem, and overload and chain rupture protection can be provided.
According to technical scheme provided by the invention: chain stretching device, it is characterized in that: comprise tensioning wheel assembly, slide block, tensioning frame and tensioning screw assembly, described tensioning frame is by the burr adjustable tail margin supporting bottom it, slide block is arranged on tensioning frame and also can horizontal cross be free to slide, and described tensioning wheel assembly is arranged on slide block; Described tensioning screw assembly is arranged on tensioning wheel assembly right, tensioning screw assembly comprises tensioning screw, positioning plate, volute spring and spring perch, described spring perch is fixedly mounted on tensioning frame, in volute spring mounting spring seat, tensioning screw horizontal cross is arranged, and pass from the center of volute spring, tensioning screw front end is connected with slide block and uses nut locking, positioning plate is arranged on also with nut locking in the middle part of tensioning screw, and volute spring head end right-to-left top is pressed on positioning plate.
As a further improvement on the present invention, two sideskids of described tensioning frame are provided with horizontal cross elongated slot, described slide block comprises two pieces of sideskids and one piece of connecting panel, the upper of two pieces of sideskid medial surfaces is provided with groove below, sideskid is coordinated with the upper following of horizontal cross elongated slot on tensioning frame side board by following groove on its medial surface, and the right-hand member connecting panel of two pieces of sideskids is fixedly connected with; Described tensioning wheel assembly is arranged on the both sides sideskid of slide block, and described tensioning screw is connected on the connecting panel of slide block.
As a further improvement on the present invention, described tensioning wheel assembly comprises tension wheel, wheel shaft and rolling bearing units, described tension wheel to be sleeved on wheel shaft and to be connected with wheel shaft by key, described wheel shaft two supports is arranged in two pieces rolling bearing units, and described rolling bearing units are fixed on the both sides sideskid of slide block by the fastener be made up of bolt, flat gasket and bullet packing ring.
As a further improvement on the present invention; described chain stretching device also comprises overload chain rupture protection mechanism; described overload chain rupture protection mechanism comprises trigger board, travel switch and switch mounting; described trigger board is arranged on slide block; travel switch is arranged on trigger board side; travel switch is arranged on switch mounting; the head end of travel switch is towards trigger board; trigger board two ends are provided with male part; when there is overload or chain rupture situation; slide block will cross safety travel, and the male part at trigger board two ends can be encountered and trigger travel switch, makes travel switch send signal.
As a further improvement on the present invention, described tensioning frame right is provided with chain guide frame, chain guide frame left end is connected with tensioning frame right-hand member, chain tension frame right-hand member is by regulating lower margin supporting, the following top of chain tension frame is provided with the lower sliver of horizontal cross layout, the top, top of chain tension frame is provided with slot guide, is provided with sliver in slot guide.
compared with prior art, tool has the following advantages in the present invention:the present invention is simple and reasonable; tight chain rapid operation, synchronous tension adjustment can be carried out to the chain of double-chain conveyor; the jumping chain avoiding double-chain conveyor to cause because chain tension is inconsistent, drag chain and chain inordinate wear problem, and overload and chain rupture protection can be provided.
Accompanying drawing explanation
Fig. 1 is the structural front view of the embodiment of the present invention.
Fig. 2 is the A-A direction view in Fig. 1.
Fig. 3 is the birds-eye view of Fig. 1.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in the figure: the chain stretching device in embodiment is primarily of compositions such as tensioning wheel assembly 1, slide block 2, tensioning frame 3, tensioning screw assembly 4, chain guide frame 5, burr adjustable tail margin 6, trigger board 7, travel switch 8, switch mounting 9, lower sliver 10, slot guide 11 and upper slivers 12.
As shown in Fig. 1 ~ Fig. 3, described tensioning frame 3 is supported by the burr adjustable tail margin 6 bottom it, and slide block 2 is arranged on tensioning frame 3 and also can horizontal cross be free to slide.In the embodiment of the present invention, two sideskid 2a of described tensioning frame 3 are provided with horizontal cross elongated slot, described slide block 2 forms primarily of two pieces of sideskid 2a and piece connecting panel 2b, the upper of two pieces of sideskid 2a medial surfaces is provided with groove below, sideskid 2a is coordinated with the upper following of horizontal cross elongated slot on tensioning frame 3 side board by following groove on its medial surface, and the right-hand member connecting panel 2b of two pieces of sideskid 2a is fixedly connected with.
As shown in Fig. 1 ~ Fig. 3, described tensioning wheel assembly 1 is arranged on the both sides sideskid 2a of slide block 2.In the embodiment of the present invention, described tensioning wheel assembly 1 forms primarily of tension wheel 1a, wheel shaft 1b and rolling bearing units 1c, described tension wheel 1a to be sleeved on wheel shaft 1b and to be connected with wheel shaft 1b by key, described wheel shaft 1b two supports is arranged in two pieces rolling bearing units 1c, and described rolling bearing units 1c is fixed on the both sides sideskid 2a of slide block 2 by the fastener be made up of bolt, flat gasket and bullet packing ring.
As shown in Fig. 1 ~ Fig. 3, described tensioning screw assembly 4 is arranged on tensioning wheel assembly 1 right, tensioning screw assembly 4 is primarily of tensioning screw 4a, positioning plate 4b, volute spring 4c and spring perch 4d forms, described spring perch 4d is fixedly mounted on tensioning frame 3, in volute spring 4c mounting spring seat 4d, tensioning screw 4a horizontal cross is arranged, pass from the center of volute spring 4c, on the connecting panel 2b that tensioning screw 4a front end is connected to slide block 2 and with nut locking, positioning plate 4b is arranged in the middle part of tensioning screw 4a also with nut locking, volute spring 4c head end right-to-left top is pressed on positioning plate 4b.Namely the tensile force of tensioning wheel assembly 1 is provided by volute spring 4c, because the rigidity of volute spring 4c is comparatively large, so this chain stretching device can predetermincd tension also larger more stable.
As Fig. 1, shown in Fig. 3, in the embodiment of the present invention, described chain stretching device also comprises overload chain rupture protection mechanism, described overload chain rupture protection mechanism is primarily of trigger board 7, travel switch 8 and switch mounting 9 form, described trigger board 7 is arranged on slide block 2, travel switch 8 is arranged on trigger board 7 side, travel switch 8 is arranged on switch mounting 9, the head end of travel switch 8 is towards trigger board 7, trigger board 7 two ends are provided with male part, when there is overload or chain rupture situation, slide block 2 will cross safety travel, the male part at trigger board 7 two ends can be encountered and be triggered travel switch 8, travel switch 8 is made to send signal.
As shown in Fig. 1 ~ Fig. 3, in the embodiment of the present invention, described tensioning frame 3 right is also provided with chain guide frame 5, chain guide frame 5 left end is connected with tensioning frame 3 right-hand member, chain tension frame 3 right-hand member is by regulating lower margin supporting, the following top of chain tension frame 3 is provided with the lower sliver 10 of horizontal cross layout, and the top, top of chain tension frame 3 is provided with slot guide 11, is provided with sliver 12 in slot guide 11.

Claims (5)

1. chain stretching device, it is characterized in that: comprise tensioning wheel assembly (1), slide block (2), tensioning frame (3) and tensioning screw assembly (4), described tensioning frame (3) is by burr adjustable tail margin (6) supporting bottom it, slide block (2) is arranged on tensioning frame (3) and above also can horizontal cross be free to slide, and described tensioning wheel assembly (1) is arranged on slide block (2), described tensioning screw assembly (4) is arranged on tensioning wheel assembly (1) right, tensioning screw assembly (4) comprises tensioning screw (4a), positioning plate (4b), volute spring (4c) and spring perch (4d), described spring perch (4d) is fixedly mounted on tensioning frame (3), in volute spring (4c) mounting spring seat (4d), tensioning screw (4a) horizontal cross is arranged, pass from the center of volute spring (4c), tensioning screw (4a) front end is connected with slide block (2) and uses nut locking, positioning plate (4b) is arranged on tensioning screw (4a) middle part and uses nut locking, volute spring (4c) head end right-to-left top is pressed on positioning plate (4b).
2. chain stretching device as claimed in claim 1, it is characterized in that: two sideskids (2a) of described tensioning frame (3) are provided with horizontal cross elongated slot, described slide block (2) comprises two pieces of sideskids (2a) and one piece of connecting panel (2b), the upper of two pieces of sideskid (2a) medial surfaces is provided with groove below, sideskid (2a) is coordinated with the upper following of horizontal cross elongated slot on tensioning frame (3) side board by groove following on its medial surface, and the right-hand member connecting panel (2b) of two pieces of sideskids (2a) is fixedly connected with; Described tensioning wheel assembly (1) is arranged on the both sides sideskid (2a) of slide block (2), and described tensioning screw (4a) is connected on the connecting panel (2b) of slide block (2).
3. chain stretching device as claimed in claim 2, it is characterized in that: described tensioning wheel assembly (1) comprises tension wheel (1a), wheel shaft (1b) and rolling bearing units (1c), described tension wheel (1a) is sleeved on wheel shaft (1b) and goes up and be connected with wheel shaft (1b) by key, described wheel shaft (1b) two supports is arranged in two pieces rolling bearing units (1c), and described rolling bearing units (1c) are fixed on the both sides sideskid (2a) of slide block (2) by the fastener be made up of bolt, flat gasket and bullet packing ring.
4. chain stretching device as claimed in claim 1, it is characterized in that: described chain stretching device also comprises overload chain rupture protection mechanism, described overload chain rupture protection mechanism comprises trigger board (7), travel switch (8) and switch mounting (9), described trigger board (7) is arranged on slide block (2), travel switch (8) is arranged on trigger board (7) side, travel switch (8) is arranged on switch mounting (9), the head end of travel switch (8) is towards trigger board (7), trigger board (7) two ends are provided with male part, when there is overload or chain rupture situation, slide block (2) will cross safety travel, the male part at trigger board (7) two ends can be encountered and be triggered travel switch (8), travel switch (8) is made to send signal.
5. chain stretching device as claimed in claim 1, it is characterized in that: described tensioning frame (3) right is provided with chain guide frame (5), chain guide frame (5) left end is connected with tensioning frame (3) right-hand member, chain tension frame (3) right-hand member is by regulating lower margin supporting, the following top of chain tension frame (3) is provided with the lower sliver (10) of horizontal cross layout, the top, top of chain tension frame (3) is provided with slot guide (11), is provided with sliver (12) in slot guide (11).
CN201410713375.2A 2014-11-28 2014-11-28 Chain tensioning device Active CN104444124B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410713375.2A CN104444124B (en) 2014-11-28 2014-11-28 Chain tensioning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410713375.2A CN104444124B (en) 2014-11-28 2014-11-28 Chain tensioning device

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CN104444124A true CN104444124A (en) 2015-03-25
CN104444124B CN104444124B (en) 2017-02-22

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104895588A (en) * 2015-06-05 2015-09-09 李德安 Improved push chain type concrete spraying machine
CN106429231A (en) * 2016-11-08 2017-02-22 天奇自动化工程股份有限公司 Oil pressure counterweight tensioning device
CN106628861A (en) * 2016-10-20 2017-05-10 宁波蓝圣智能科技有限公司 Simple conveyer belt tensioning adjustment alarming device
WO2017206279A1 (en) * 2016-05-31 2017-12-07 山东科技大学 Chain tension regulating device used for tail of scraper and use thereof
CN108260405A (en) * 2018-01-10 2018-07-10 昆明理工大学 A kind of whole rod type sugarcane stripping leaf machine
CN109720787A (en) * 2019-01-15 2019-05-07 中冶华天南京工程技术有限公司 A kind of chain-linked conveyer automatic takeup

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0826443A (en) * 1994-07-11 1996-01-30 Tsubakimoto Chain Co Chain tension setting apparatus
CN201914675U (en) * 2010-12-08 2011-08-03 江苏天鹏机电制造有限公司 Tension device for running component of plate-type feeding machine
CN102849406A (en) * 2012-08-21 2013-01-02 苏州麦科威化工设备有限公司 Tensioning device of tube chain machine
CN102963684A (en) * 2012-11-02 2013-03-13 无锡明珠增压器制造有限公司 Chain tension checking device
CN103612880A (en) * 2013-12-04 2014-03-05 无锡雪浪环境科技股份有限公司 Rolling tensioning structure for chain conveyer
CN204341867U (en) * 2014-11-28 2015-05-20 天奇自动化工程股份有限公司 Chain stretching device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0826443A (en) * 1994-07-11 1996-01-30 Tsubakimoto Chain Co Chain tension setting apparatus
CN201914675U (en) * 2010-12-08 2011-08-03 江苏天鹏机电制造有限公司 Tension device for running component of plate-type feeding machine
CN102849406A (en) * 2012-08-21 2013-01-02 苏州麦科威化工设备有限公司 Tensioning device of tube chain machine
CN102963684A (en) * 2012-11-02 2013-03-13 无锡明珠增压器制造有限公司 Chain tension checking device
CN103612880A (en) * 2013-12-04 2014-03-05 无锡雪浪环境科技股份有限公司 Rolling tensioning structure for chain conveyer
CN204341867U (en) * 2014-11-28 2015-05-20 天奇自动化工程股份有限公司 Chain stretching device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104895588A (en) * 2015-06-05 2015-09-09 李德安 Improved push chain type concrete spraying machine
WO2017206279A1 (en) * 2016-05-31 2017-12-07 山东科技大学 Chain tension regulating device used for tail of scraper and use thereof
CN106628861A (en) * 2016-10-20 2017-05-10 宁波蓝圣智能科技有限公司 Simple conveyer belt tensioning adjustment alarming device
CN106429231A (en) * 2016-11-08 2017-02-22 天奇自动化工程股份有限公司 Oil pressure counterweight tensioning device
CN108260405A (en) * 2018-01-10 2018-07-10 昆明理工大学 A kind of whole rod type sugarcane stripping leaf machine
CN108260405B (en) * 2018-01-10 2020-04-07 昆明理工大学 Whole-rod type sugarcane leaf peeling machine
CN109720787A (en) * 2019-01-15 2019-05-07 中冶华天南京工程技术有限公司 A kind of chain-linked conveyer automatic takeup

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