CN203770560U - Rocker arm type chain tensioning device - Google Patents
Rocker arm type chain tensioning device Download PDFInfo
- Publication number
- CN203770560U CN203770560U CN201420199756.9U CN201420199756U CN203770560U CN 203770560 U CN203770560 U CN 203770560U CN 201420199756 U CN201420199756 U CN 201420199756U CN 203770560 U CN203770560 U CN 203770560U
- Authority
- CN
- China
- Prior art keywords
- chain
- tensioning frame
- adjustable tensioning
- rocker arm
- pinch roller
- 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.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
Abstract
The utility model discloses a rocker arm type chain tensioning device which is characterized by being composed of a support, a rocker arm, an adjustable tensioning frame and screw rods. The adjustable tensioning frame is a movable parallelogram bracket composed of connecting rods; pressing wheels are arranged on the left and right diagonals of the movable parallelogram bracket; two ends of the rocker arm are connected with the support and the adjustable tensioning frame respectively; the screw rods are arranged on the upper and lower diagonals of the adjustable tensioning frame and are locked by virtue of nuts; the two pressing wheels are adjusted by virtue of the nuts on the screw rods so as to adjust the tension of a chain; using the support as the hinge point, the rock arm is capable of adjusting the tension form when the chain positively or negatively rotates. Compared with the prior art, the rocker arm type chain tensioning device is simple in structure, convenient to install, flexible in transmission, high in work efficiency, good in reliability, low in manufacturing and maintenance cost and especially suitable for chain transmission system limited by installing conditions.
Description
Technical field
The utility model relates to transmission device technical field, especially a kind of rocking arm type chain stretching device for driving mechanism in hoist vertical guide.
Background technique
Two sprocket wheels of chain drive are in the same face, and chain is because of service wear, and the active length of chain can increase gradually, cause that effective total number of teeth in engagement reduces, and cause transmission performance to decline, and cause driving unit fault when serious.In order to solve problems, generally all in driving mechanism, increase tension device, effectively improve transmission performance and the operating life of chain, band.
The chain stretching device of prior art adopts the tension structure of fixedly pushing down monolateral chain, though its tension chain effectively, the lax problem of solution chain.But the tension device of this structure is fixed tensioning, in the transfer process rotating and reverse at chain, both sides chain length is always constant, simultaneously in the situation that condition is limited, particularly without suitable fixed bearing, make arranging of tension device more difficult, especially cannot be arranged in hoist vertical guide and use in driving mechanism.
Model utility content
The purpose of this utility model is a kind of rocking arm type chain stretching device providing for the deficiencies in the prior art, adopt the tensioning support of two pinch rollers and parallelogram sturcutre, to change tetragonal diagonal angle, regulate the spacing of two pinch rollers, realize chain in the tensioning without under additional external force, chain tension is reliable, flexible arrangement is convenient, swinging tensioning support makes chain can realize the adjustment of tensioning when forward or reverse, especially be applicable to setting and the installation of driving mechanism in vertical guide, meet the needs of chain tension, simple in structure, reasonable stress, easy to use, greatly simplified the installation of tension device, effectively improve transmission performance and operating life.
The purpose of this utility model is achieved in that a kind of rocking arm type chain stretching device, be characterized in that this tension device is comprised of bearing, rocking arm, adjustable tensioning frame, screw rod and left and right two pinch rollers, described adjustable tensioning frame is the parallelogram travel(l)ing rest that connecting rod forms; Described left and right two pinch rollers are fixedly installed on the left and right diagonal angle of adjustable tensioning frame; Described rocking arm one end and bearing are hinged, and its other end is fixedly connected with diagonal angle on adjustable tensioning frame; Described screw rod is arranged on upper and lower two diagonal angles of adjustable tensioning frame, and screw rod one end is fixedly connected with the upper diagonal angle of adjustable tensioning frame, after the lower diagonal angle suit of its other end and adjustable tensioning frame, by adjusting nut, is locked; Described left and right two pinch rollers carry out the adjustment of chain tension by the adjusting nut being arranged on screw rod; Described rocking arm be take bearing and as hinged point rotates, is carried out the tensioning morpheme adjustment of chain when forward or reverse.
The utility model compared with prior art has simple in structure, easy for installation, ensuring smooth transmission, and working efficiency is high, and good reliability is manufactured, maintenance cost is low, is especially applicable to the limited chain transmission system of installation conditions.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model is specifically applied schematic diagram;
Fig. 3 is the work schematic diagram of the utility model when chain forward;
Fig. 4 is the work schematic diagram of the utility model when chain reverses.
Embodiment
Consult accompanying drawing 1, the utility model is comprised of bearing 4, Rocker arm 5, adjustable tensioning frame 6, left pinch roller 7, right pinch roller 8, screw rod 10 and adjusting nut 11, the parallelogram travel(l)ing rest that described adjustable tensioning frame 6 is comprised of four connecting rods 9; Described left pinch roller 7 and right pinch roller 8 are fixedly installed on left and right two diagonal angles of adjustable tensioning frame 6; Described Rocker arm 5 one end and bearing 4 are hinged, and its other end is fixedly connected with the upper diagonal angle of adjustable tensioning frame 6; Described screw rod 10 is arranged on upper and lower two diagonal angles of adjustable tensioning frame 6, and screw rod 10 one end are fixedly connected with the upper diagonal angle of adjustable tensioning frame 6, after the lower diagonal angle suit of its other end and adjustable tensioning frame 6, by adjusting nut 11, is locked; Described left pinch roller 7 and right pinch roller 8 are by the adjustment that is arranged on adjusting nut 11 on screw rod 10 and carries out drive chain tensioning; Described Rocker arm 5 be take bearing 4 as hinged point rotates, and makes adjustable tensioning frame 6 carry out the tensioning morpheme adjustment of drive chain when the forward or reverse with vertical guide translation.
Consult accompanying drawing 2, the utility model is to use like this: bearing 4 is fixedly installed on chain drive, left pinch roller 7 and right pinch roller 8 are arranged on two outsides of chain 2, when driving wheel 1 rotates, by chain 2, drive follower 3 to rotate, adjustment is arranged on the adjusting nut 11 on screw rod 10, makes the spacing of left pinch roller 7 and right pinch roller 8 dwindle and push down chain 2, realizes the tensioning of chain 2.Due to left and right two pinch rollers 7 and 8 power equal and opposite in direction and the opposite directions that act on chain 2, so left and right two pinch rollers 7 and 8 just can make chain 12 tensionings without external force in the situation that.Shake Rocker arm 5 adjustable tensioning frame 6 is rotated around bearing 4 under Rocker arm 5, adjustable tensioning frame 6 is adjusted the tensioning morpheme of chain 2 when the forward or reverse with vertical guide translation.
Consult accompanying drawing 3, when driving wheel 1 clockwise direction rotates, because of follower 3 resistances, chain 2 left-hand components are tightened relatively, right-hand component is relatively lax, swing Rocker arm 5 and make the translation left of adjustable tensioning frame 6, in the situation that not affecting chain 2 transmission, adjust the tensioning morpheme of chain 2, realize the tensioning of chain 2.
Consult accompanying drawing 4, when driving wheel 1 counterclockwise rotates, because of follower 3 resistances, chain 2 right-hand components are tightened relatively, left-hand component is relatively lax, swing the translation to the right of the adjustable tensioning frame 6 of Rocker arm 5, in the situation that not affecting chain 2 transmission, adjust the tensioning morpheme of chain 2, realize the tensioning of chain 2.
More than just the utility model is described further, not in order to limit the utility model patent, all is that the utility model equivalence is implemented, within all should being contained in the claim scope of the utility model patent.
Claims (1)
1. a rocking arm type chain stretching device, it is characterized in that this tension device is comprised of bearing (4), rocking arm (5), adjustable tensioning frame (6), left pinch roller (7), right pinch roller (8) and screw rod (10), described adjustable tensioning frame (6) is the parallelogram travel(l)ing rest that connecting rod (9) forms; Described left pinch roller (7) and right pinch roller (8) are fixedly installed on the left and right diagonal angle of adjustable tensioning frame (6); Described rocking arm (5) one end and bearing (4) are hinged, and its other end is fixedly connected with the upper diagonal angle of adjustable tensioning frame (6); Described screw rod (10) is arranged on upper and lower two diagonal angles of adjustable tensioning frame (6), screw rod (10) one end is fixedly connected with the upper diagonal angle of adjustable tensioning frame (6), after the lower diagonal angle suit of its other end and adjustable tensioning frame (6), by adjusting nut (11), is locked; Described left pinch roller (7) and right pinch roller (8) carry out the adjustment of chain tension by the adjusting nut (11) being arranged on screw rod (10); Described rocking arm (5) be take bearing (4) as hinged point rotates, and makes adjustable tensioning frame (6) carry out the tensioning morpheme adjustment of chain when the forward or reverse with vertical guide translation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199756.9U CN203770560U (en) | 2014-04-23 | 2014-04-23 | Rocker arm type chain tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199756.9U CN203770560U (en) | 2014-04-23 | 2014-04-23 | Rocker arm type chain tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770560U true CN203770560U (en) | 2014-08-13 |
Family
ID=51287752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420199756.9U Expired - Lifetime CN203770560U (en) | 2014-04-23 | 2014-04-23 | Rocker arm type chain tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770560U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899721A (en) * | 2014-04-23 | 2014-07-02 | 中船第九设计研究院工程有限公司 | Rocker arm type chain tensioning device |
| CN107593000A (en) * | 2017-10-23 | 2018-01-19 | 湖南龙舟农机股份有限公司 | A kind of flat field device peace field machine |
| CN107624274A (en) * | 2017-10-23 | 2018-01-26 | 湖南龙舟农机股份有限公司 | A kind of strainer and rotary cultivator |
| CN107630985A (en) * | 2017-10-23 | 2018-01-26 | 湖南龙舟农机股份有限公司 | A kind of chain stretching device and rotating rotary cultivator |
| CN113772339A (en) * | 2021-09-07 | 2021-12-10 | 杭州先罗输送机械有限公司 | Chain self-tensioning device of motor underneath type heavy-load elevator |
-
2014
- 2014-04-23 CN CN201420199756.9U patent/CN203770560U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899721A (en) * | 2014-04-23 | 2014-07-02 | 中船第九设计研究院工程有限公司 | Rocker arm type chain tensioning device |
| CN107593000A (en) * | 2017-10-23 | 2018-01-19 | 湖南龙舟农机股份有限公司 | A kind of flat field device peace field machine |
| CN107624274A (en) * | 2017-10-23 | 2018-01-26 | 湖南龙舟农机股份有限公司 | A kind of strainer and rotary cultivator |
| CN107630985A (en) * | 2017-10-23 | 2018-01-26 | 湖南龙舟农机股份有限公司 | A kind of chain stretching device and rotating rotary cultivator |
| CN113772339A (en) * | 2021-09-07 | 2021-12-10 | 杭州先罗输送机械有限公司 | Chain self-tensioning device of motor underneath type heavy-load elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |