CN217707532U - Chain tensioning device - Google Patents
Chain tensioning device Download PDFInfo
- Publication number
- CN217707532U CN217707532U CN202220127148.1U CN202220127148U CN217707532U CN 217707532 U CN217707532 U CN 217707532U CN 202220127148 U CN202220127148 U CN 202220127148U CN 217707532 U CN217707532 U CN 217707532U
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- chain
- frame body
- slide
- tensioning
- rolling shaft
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Abstract
The utility model relates to a chain tensioning device, include: the frame body is of a groove-shaped structure, one end of the frame body is provided with a first rolling shaft, the first rolling shaft is connected with a chain, and the other end of the frame body is provided with a slideway; the tensioning support is of a U-shaped structure, a second rolling shaft is arranged in the tensioning support and is rotationally connected with the first rolling shaft through a chain, and slide way bolts are further arranged on two sides of the tensioning support and slide in the slide ways and drive the second rolling shaft to be far away from the first rolling shaft so as to achieve tensioning of the chain. Compared with a screw type tensioning mechanism of a main stream, the chain tensioning device is more compact in structure and more convenient to adjust, and single adjustment amount is larger on the premise of occupying the same adjusting space.
Description
Technical Field
The utility model belongs to the technical field of the logistics equipment manufacture technique and specifically relates to indicate a chain overspeed device tensioner.
Background
With the rapid development of the logistics industry and the increasing demand of stereoscopic warehouses, the demand of automatic operation of equipment is continuously increased, and in the stereoscopic warehouse system, conveying equipment is provided with a plurality of rollers and chain machines.
The chain machine is the most widely existing in an automatic warehouse, but the requirement of the chain machine on the stability and the universality of the equipment is extremely high due to the continuous improvement of the demand of the chain machine, the existing chain machine mostly adopts a carbon steel machine body as a base, a screw rod type tensioning chain is usually adopted as a tensioning part, namely, the chain rounds between a fixed rolling shaft and a movable rolling shaft at two ends of the machine body, the extending end of the movable rolling shaft is vertically connected with a screw rod, the screw rod is arranged on the side surface of the machine body, when the adjustment is carried out, a wrench is required to rotate one end of the screw rod, so that the other end of the screw rod drives the movable rolling shaft to be far away from the fixed end, and protective coamings are generally arranged at two sides of the screw rod, so that the adjustment amount of the screw rod at each time can not be too large.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model discloses the technical problem that will solve lies in overcoming the inconvenient problem of straining device adjustment among the prior art.
In order to solve the technical problem, the utility model provides a chain tensioning device, include:
the frame body is of a groove-shaped structure, one end of the frame body is provided with a first rolling shaft, the first rolling shaft is connected with a chain, and the other end of the frame body is provided with a slideway;
the tensioning support is of a U-shaped structure, a second rolling shaft is arranged in the tensioning support, the second rolling shaft is connected with the first rolling shaft in a rotating mode through the chain, slide bolts are further arranged on the two sides of the tensioning support, the slide bolts slide in the slides and drive the second rolling shaft to be far away from the first rolling shaft to achieve tensioning of the chain.
In an embodiment of the present invention, the slide way is a set of circular arc-shaped holes that are symmetrical to each other.
In an embodiment of the present invention, the two sides of the tensioning bracket are provided with bearings, and the bearing sleeves are disposed at two ends of the rolling shaft.
The utility model discloses an embodiment, the tensioning support with be provided with the stopper between the frame body, the slide bolt passes the stopper.
In an embodiment of the present invention, the frame body is provided with a spacing hole, the tensioning bracket is provided with a spacing bolt, and the spacing bolt is adapted to the spacing hole.
In an embodiment of the present invention, both sides of the tension bracket are attached to the frame body.
In an embodiment of the present invention, the second rollers are provided in two sets, and a middle point of the axis connecting line coincides with a center of the limiting hole.
In an embodiment of the present invention, the slide bolt is disposed on two sides of the tensioning bracket, and the center line of the slide bolt passes through the axis of the limiting bolt.
In an embodiment of the present invention, the slide bolt and the frame body are clamped by an elastic pad and a flat pad.
In an embodiment of the invention, the second roller is provided with an annular projection for limiting the movement of the chain.
Compared with the prior art, the technical scheme of the utility model have following advantage:
a chain overspeed device tensioner install two sets of roller bearings in the tensioning support, utilize the slip of the slide bolt on the tensioning support in convex slide, realize the change of the relative distance of roller bearing and front end axle to adjust the tensioning degree of chain, whole device is compacter for the screw straining device structure of mainstream, the adjustment is more convenient, and the volume of once adjustment is bigger under the prerequisite that occupies the same adjustment space.
Drawings
In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, taken in conjunction with the accompanying drawings, in which
Fig. 1 is a front view of the chain tensioner of the present invention;
fig. 2 is a side view of the chain tensioner of the present invention;
FIG. 3 is an elevational view of a portion of the chain tensioner of FIG. 1;
FIG. 4 is a side view of a portion of the chain tensioner of FIG. 1;
FIG. 5 is a side view of a stop block in the chain tensioner of FIG. 1;
description reference numbers indicate: 1. a frame body; 2. tensioning the bracket; 3. a second roller; 4. a slideway; 5. a slideway bolt; 6. a limit bolt; 7. a limiting hole; 8. a bearing; 9. a limiting block; 10. a spring washer; 11. flattening the cushion; 12. an annular projection; 13. and a chain.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.
Referring to fig. 1 and 2, an embodiment of the present invention discloses a chain tensioner, including:
the frame comprises a frame body 1 which is of a groove-shaped structure, wherein one end of the frame body 1 is provided with a first rolling shaft, the first rolling shaft is connected with a chain 13, and the other end of the frame body 1 is provided with a slide way 4;
The slide way 4 is a group of arc-shaped pore channels which are symmetrical to each other, specifically, two symmetrical sections are respectively arranged on two sides of the tensioning support 2 of the slide way 4, the length of the pore channels is determined according to the adjusting range of a required chain, two groups of slide way bolts 5 are correspondingly arranged, when one group of slide way bolts 5 fall to the bottom end of the first slide way, the other corresponding group of slide way bolts 5 fall to the top end of the second slide way, and the width of the slide way 4 is smaller than the nut width of the slide way bolts 5.
The both sides and the laminating of frame body 1 of tensioning support 2, the card is equipped with bullet pad 10 and flat pad 11 between slide bolt 5 and the frame body 1 to guarantee that tensioning support 2 can remove along slide 4 under the effect of power, nevertheless guarantee all the time to compress tightly frame body 1 with fixed second roller bearing 3.
Frame body 1 is provided with spacing hole 7, and tensioning support 2 is provided with spacing bolt 6, spacing bolt 6 and spacing hole 7 adaptation, and is specific, blocks between spacing bolt 6 and the frame body 1 and is equipped with bullet pad 10 and flat pad 11 to guarantee that whole tensioning support 2 uses spacing bolt 6 to rotate as the axle center.
Referring to fig. 3 and 4, the tensioning bracket 2 is a U-shaped structure, and more particularly, the tensioning bracket 2 may be a frame structure, and it can be seen that the U-shaped structure is relatively material-saving, and the corners of the tensioning bracket 2 are chamfered and rounded.
The two sides of the tensioning support 2 are provided with bearings 8, the bearings 8 are sleeved at the two ends of the second rolling shaft 3, specifically, the bearings 8 are deep groove ball bearings, the friction coefficient of the bearings is low, the limit rotating speed is high, the bearings are very durable, and basically no maintenance is needed.
The second rollers 3 are provided with two groups, the middle points of the connecting lines of the axle centers of the two groups coincide with the center of the limiting hole 7, conceivably, the arrangement mode is that in order to ensure that the roller groups rotate around the limiting hole 7 so as to calculate and judge the moving distance and position of the second rollers 3 better, the two groups of slideway bolts 5 are respectively arranged on one side of the tensioning support 2, and the connecting lines of the centers of the two groups of slideway bolts pass through the axle centers of the limiting bolts 6.
The second roller 3 is provided with an annular projection 12 for limiting the movement of the chain 13, and more generally, the shape of the annular projection 12 may vary according to the type of chain, for example, it may also be a rack on which the chain is connected.
Referring to fig. 4 and 5 as an illustration, be provided with stopper 9 between tensioning support 2 and the frame body 1, slide bolt 5 passes stopper 9, and is specific, and stopper 9 can be a waist shape rectangular piece, and slide bolt 5 is worn to establish at its both ends, and stopper bolt 6 passes stopper 9's central point and puts, and stopper 9's thickness will be guaranteed to be not less than the height that bearing 8 salient tensioning support 2, and in addition, stopper 9 can also play the supporting role to slide bolt 5.
When the device is installed, the second roller 3 is installed on the tensioning bracket 2, then the tensioning bracket 2 is integrally plugged into the frame body 1, and the limiting bolt 6 and the slideway bolt 5 are sequentially locked; during adjustment, only the middle position of the tensioning support 2 is clamped by a wrench or other clamping tools to rotate, so that the slide bolt 5 slides in the slide 4, and the relative position between the second roller 3 and the first roller can be adjusted to realize the adjustment of the chain tension.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.
Claims (10)
1. A chain tensioner, comprising:
the frame body is of a groove-shaped structure, one end of the frame body is provided with a first rolling shaft, the first rolling shaft is connected with a chain, and the other end of the frame body is provided with a slideway;
the tensioning support is of a U-shaped structure, a second roller is arranged in the tensioning support, the second roller is connected with the first roller in a rotating mode through the chain, slide bolts are further arranged on the two sides of the tensioning support and slide in the slide, and the second roller is driven to be far away from the first roller to achieve tensioning of the chain.
2. The chain tensioner as set forth in claim 1, wherein: the slide way is a group of arc pore canals which are symmetrical to each other.
3. The chain tensioner as set forth in claim 1, wherein: and bearings are arranged on two sides of the tensioning support and sleeved at two ends of the rolling shaft.
4. The chain tensioner as set forth in claim 1, wherein: the tensioning support with be provided with the stopper between the frame body, the slide bolt passes the stopper.
5. The chain tensioner as set forth in claim 1, wherein: the frame body is provided with a limiting hole, the tensioning support is provided with a limiting bolt, and the limiting bolt is matched with the limiting hole.
6. The chain tensioner as set forth in claim 1, wherein: and the two sides of the tensioning support are attached to the frame body.
7. The chain tensioner as set forth in claim 5, wherein: the second rollers are arranged in two groups, and the middle point of the axis connecting line of the second rollers is superposed with the center of the limiting hole.
8. The chain tensioner as set forth in claim 5, wherein: the slide bolts are arranged on one side of the tensioning support respectively, and the center connecting line of the slide bolts passes through the axis of the limiting bolt.
9. The chain tensioner as set forth in claim 1, wherein: an elastic pad and a flat pad are clamped between the slide way bolt and the frame body.
10. The chain tensioner as set forth in claim 1, wherein: the second roller is provided with an annular projection for limiting movement of the chain.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220127148.1U CN217707532U (en) | 2022-01-18 | 2022-01-18 | Chain tensioning device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220127148.1U CN217707532U (en) | 2022-01-18 | 2022-01-18 | Chain tensioning device |
Publications (1)
Publication Number | Publication Date |
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CN217707532U true CN217707532U (en) | 2022-11-01 |
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ID=83788439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202220127148.1U Active CN217707532U (en) | 2022-01-18 | 2022-01-18 | Chain tensioning device |
Country Status (1)
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CN (1) | CN217707532U (en) |
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2022
- 2022-01-18 CN CN202220127148.1U patent/CN217707532U/en active Active
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