CN204341867U - Chain stretching device - Google Patents
Chain stretching device Download PDFInfo
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- CN204341867U CN204341867U CN201420740000.0U CN201420740000U CN204341867U CN 204341867 U CN204341867 U CN 204341867U CN 201420740000 U CN201420740000 U CN 201420740000U CN 204341867 U CN204341867 U CN 204341867U
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- tensioning
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Abstract
The utility model relates to chain stretching device.Tensioning frame is by the burr adjustable tail margin supporting bottom it, and slide block is arranged on tensioning frame and also can horizontal cross be free to slide, and tensioning wheel assembly is arranged on slide block; Tensioning screw assembly is arranged on tensioning wheel assembly right, tensioning screw assembly comprises tensioning screw, positioning plate, volute spring and spring perch, 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.The utility model 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.
Description
Technical field
The utility model relates to a kind of chain stretching device, and 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 purpose of this utility model 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.
Technical scheme according to the utility model provides: 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 further improvement of the utility model, 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 further improvement of the utility model, 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 further improvement of the utility model, 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, the male part at trigger board two ends can be encountered and trigger travel switch, travel switch is made to send signal.
As further improvement of the utility model, 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 the utility model:the utility model 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 utility model embodiment.
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 utility model is described in further detail.
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 utility model embodiment, 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 utility model embodiment, 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 utility model embodiment, 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 utility model embodiment, 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740000.0U CN204341867U (en) | 2014-11-28 | 2014-11-28 | Chain stretching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740000.0U CN204341867U (en) | 2014-11-28 | 2014-11-28 | Chain stretching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204341867U true CN204341867U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420740000.0U Active CN204341867U (en) | 2014-11-28 | 2014-11-28 | Chain stretching device |
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| CN (1) | CN204341867U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444124A (en) * | 2014-11-28 | 2015-03-25 | 天奇自动化工程股份有限公司 | Chain tensioning device |
| CN105668139A (en) * | 2015-07-03 | 2016-06-15 | 徐工集团工程机械股份有限公司 | Tensioning device and belt conveyor |
| CN107284947A (en) * | 2017-07-24 | 2017-10-24 | 广东科立工业技术股份有限公司 | A kind of slider guide chain traction walking pushes away arranging device |
-
2014
- 2014-11-28 CN CN201420740000.0U patent/CN204341867U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444124A (en) * | 2014-11-28 | 2015-03-25 | 天奇自动化工程股份有限公司 | Chain tensioning device |
| CN105668139A (en) * | 2015-07-03 | 2016-06-15 | 徐工集团工程机械股份有限公司 | Tensioning device and belt conveyor |
| CN107284947A (en) * | 2017-07-24 | 2017-10-24 | 广东科立工业技术股份有限公司 | A kind of slider guide chain traction walking pushes away arranging device |
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| GR01 | Patent grant |