CN216715135U - Chain tensioning device - Google Patents
Chain tensioning device Download PDFInfo
- Publication number
- CN216715135U CN216715135U CN202123055870.3U CN202123055870U CN216715135U CN 216715135 U CN216715135 U CN 216715135U CN 202123055870 U CN202123055870 U CN 202123055870U CN 216715135 U CN216715135 U CN 216715135U
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- China
- Prior art keywords
- chain
- support
- mandrel
- base
- tensioning device
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- 210000001503 joint Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 11
- 229910052786 argon Inorganic materials 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model relates to a chain tensioning device which comprises a supporting plate, a base, a support, a mandrel and a chain wheel, wherein the chain wheel is connected to the outer portion of the mandrel through a bearing, the mandrel is supported and fixed by the support, the support is arranged above the base, the base is connected with the support through a screw and a nut, and the top of the supporting plate is fixedly connected with the base. The advantages are that: simple structure is reasonable, through sprocket and chain meshing, and realizes adjusting the height of mandrel by screw rod, nut cooperation, and then adjusts the tight degree that rises of chain, perfects the tight effect that rises of chain, reduces the accident rate.
Description
Technical Field
The utility model belongs to the field of maintenance of transmission chains, and relates to a chain tensioning device.
Background
The chain transmission is a main transmission form of present production equipment, the structural forms of the chain transmission are various, but the fault points of the chain transmission are concentrated, generally, the chain is loosened and separated from a chain wheel or broken due to abnormal stress, and the main reasons are that the tightness of the chain is unreasonable. And reasonable tightness can not be achieved by directly changing the length of the chain in the chain installation process. A tensioning device is needed to adjust the tightness of the chain.
An argon gun lifting device for 1# LF furnace accidents in a certain steel plant is in chain transmission in a transmission form, but a transmission chain of the argon gun lifting device is not provided with a tensioning device, and the phenomenon of tooth jumping is caused by the fact that the chain is too loose in the using process, so that the argon gun lifting device greatly impacts a chain body and a whole transmission system, causes the chain to be over-fatigue and broken, and causes the argon gun to fall into molten steel to cause serious consequences.
The power of the chain transmission system of the argon gun is output by a speed reducer, a small chain is driven by a chain wheel to operate, the chain wheel and a main chain are driven by the small chain to operate, the lifting action of the argon gun is realized, the main chain is provided with a pull rod to adjust the tightness of the chain, but the small chain is not provided with an adjusting tightness device. In the operation process, the small chain is often too loose, so that the tooth jumping occurs, the parts of the equipment are damaged, and even the production stop accident is caused, therefore, the structure form has defects.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a chain tensioning device, which reduces accidents caused by chain transmission and further improves the production efficiency.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the chain tensioning device comprises a supporting plate, a base, a support, a mandrel and a chain wheel, wherein the chain wheel is connected to the outer portion of the mandrel through a bearing, the mandrel is supported and fixed by the support, the support is arranged above the base, the base is connected with the support through a screw rod and a nut, and the top of the supporting plate is fixedly connected with the base.
Still include the axle head baffle, the axle head baffle passes through bolt fixed connection on the support, and the tip of mandrel can support and lean on the axle head baffle.
The screw rod is welded with the nut, the base is arranged at the bottom of the nut, and the screw rod is connected with the support through the thread pair.
The spindle sleeve is sleeved outside the spindle.
Compared with the prior art, the utility model has the beneficial effects that:
the chain tensioning device is simple and reasonable in structure, the chain is meshed with the chain through the chain wheel, the height of the mandrel is adjusted through the matching of the screw and the nut, the tensioning degree of the chain is further adjusted, the tensioning effect of the chain is improved, and the accident rate is reduced.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a cross-sectional view taken along line a-a of fig. 1.
In the figure: 1-support plate 2-screw 3-nut 4-support 5-shaft end baffle 6-bolt 7-mandrel 8-chain wheel 9-bearing 10-shaft sleeve 11-base 12-chain.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.
Referring to fig. 1 and 2, the chain tensioning device comprises a supporting plate 1, a base 11, a support 4, a mandrel 7 and a chain wheel 8, wherein the chain wheel 8 is connected to the outside of the mandrel 7 through a bearing 9, the mandrel 7 is supported and fixed by the support 4, the support 4 is arranged above the base 11, the base 11 is connected with the support 4 through a screw rod 2 and a nut 3, and the top of the supporting plate 1 is fixedly connected with the base 11. The screw rod 2 is welded with the nut 3, a through hole is formed in the base 11, the screw rod 2 penetrates through the through hole to be welded with the nut 3, the base 11 is arranged at the bottom of the nut 3, and the screw rod 2 is connected with the support 4 through a thread pair. The screw 2 may be a hex head bolt. Two bearings 9 are provided, a shaft sleeve 10 is arranged between the bearings 9, and the shaft sleeve 10 is sleeved outside the mandrel 7.
The chain tensioning device further comprises a shaft end baffle 5, the shaft end baffle 5 is fixedly connected to the support 4 through a bolt 6, and the end portion of the mandrel 7 can abut against the shaft end baffle 5.
When the chain tensioning device is installed, the direction of the tensioning force of the chain 12 and the direction of the supporting force of the chain 12 tensioning device are on the same straight line, namely the chain tensioning device is perpendicular to the chain 12. The chain wheel 8 matched with the chain 12 is selected according to the type of the chain, the connecting plate is welded and fixed on the argon gun support during installation, the adjusting direction of the support 4 is perpendicular to the direction of the chain 12, four groups of screw rods 2 feed simultaneously during tensioning of the chain 12, height adjustment can be achieved due to the fact that the feeding mode is a thread mode, the tensioning force of the chain 12 is guaranteed, and meanwhile the adjusting feeding of the independent nut 3 guarantees the verticality of the tensioning device and the chain 12.
The longitudinal fixing mode of the utility model ensures that the supporting force of the tensioning device and the tension force of the chain 12 are in the same straight line, and the bearing capacity is larger and more stable. The screw thread type adjustment is adopted, the feeding is more uniform, the independent feeding of each group of screw rods 2 can also adjust the angle of the tensioning device, and the perpendicularity of the tensioning device and the chain 12 is ensured. Meanwhile, the feeding in the form of threads realizes the stepless adjustment of the tension force of the chain tension device.
Claims (4)
1. The utility model provides a chain rises and tightly installs which characterized in that, includes backup pad, base, support, mandrel, sprocket, and the mandrel outside is connected with the sprocket through the bearing, and the mandrel is supported fixedly by the support, and the support setting is in the base top, and the base passes through screw rod, nut and leg joint, backup pad top fixedly connected with base.
2. The chain tensioning device according to claim 1, further comprising a shaft end baffle, wherein the shaft end baffle is fixedly connected to the support through a bolt, and an end portion of the mandrel can abut against the shaft end baffle.
3. The chain tensioning device according to claim 1, wherein the screw is welded with the nut, the base is arranged at the bottom of the nut, and the screw is connected with the support through a thread pair.
4. The chain tensioning device according to claim 1, further comprising two shaft sleeves, wherein the shaft sleeves are arranged between the two bearings and are sleeved outside the mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123055870.3U CN216715135U (en) | 2021-12-06 | 2021-12-06 | Chain tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123055870.3U CN216715135U (en) | 2021-12-06 | 2021-12-06 | Chain tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216715135U true CN216715135U (en) | 2022-06-10 |
Family
ID=81884017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123055870.3U Active CN216715135U (en) | 2021-12-06 | 2021-12-06 | Chain tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216715135U (en) |
-
2021
- 2021-12-06 CN CN202123055870.3U patent/CN216715135U/en active Active
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