CN201184408Y - Telescopic chain box - Google Patents
Telescopic chain box Download PDFInfo
- Publication number
- CN201184408Y CN201184408Y CNU2008200698776U CN200820069877U CN201184408Y CN 201184408 Y CN201184408 Y CN 201184408Y CN U2008200698776 U CNU2008200698776 U CN U2008200698776U CN 200820069877 U CN200820069877 U CN 200820069877U CN 201184408 Y CN201184408 Y CN 201184408Y
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- CN
- China
- Prior art keywords
- chain box
- square
- chain
- square flange
- box
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- 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 - Fee Related
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Abstract
The utility model relates to a telescopic chain box having a split connection structure, which is composed of an input chain box, an output chain box and an elastic telescopic joint hermetically connected between the input chain box and the output chain box, wherein a square flange is arranged at the connection end of the input chain box and the output chain box; the elastic telescopic joint can be selected from a metal corrugated pipe composed of square flanges at both ends and an intermediate corrugated body with a rectangular cross section; seal rings are arranged in the grooves on the outer end faces of the two square flanges; the metal corrugated pipe is connected with the input chain box and the output chain box respectively through the square flanges; the elastic telescopic joint can be a rubber pipe consisting of two square flanges on both ends and an intermediate rubber body with a waist drum shape; the intermediate rubber body has square seal ends on both ends; and the two square flanges are respectively sheathed on the both ends of the rubber body and are respectively connected with the input chain box and the output chain box through the square flanges. The telescopic chain box can meet the requirement of the changing center distance of a sprocket and ensure normal operation of each seal structures, thereby ensuring the normal use and the service life of the chains.
Description
Technical field
The utility model relates to the chain box of chain-driven unit, specifically is a kind of scalable chain box.
Background technique
Oil-well rig, well repairing machine are extensive use of chain-driven unit, the chain box that chain-driven unit is made by steel plate welding and be installed in the sprocket wheel input device that constitutes by input sprocket, input shaft in the chain box, the sprocket wheel output unit that is made of output sprocket, output shaft constitutes, seal with sealing gasket between sprocket wheel input device, sprocket wheel output unit and the chain box, make chain box become the container of the storage lubricant oil of sealing.
In the known technology, chain box is an overall structure.During work, chain drive is because stressed bigger, two centre of sprocket change apart from meeting, when two centre of sprocket when bigger variation takes place apart from, sealing configuration between sprocket wheel input device, sprocket wheel output unit and the steel chain box is wrecked, the lubricant oil that makes being used to of storing in the chain box lubricate, cool off chain produces and leaks, and chain can not obtain normally lubricating, cool off and reduce working life.
Summary of the invention
The purpose of this utility model is to provide a kind of scalable chain box for chain-driven unit, the big variable quantity that can adapt to the centre of sprocket distance, make the sealing configuration between sprocket wheel input device, sprocket wheel output unit and the chain box keep stable, chain box can keep sealability, can guarantee chain normal working life.
The scalable chain box of the utility model is characterized in that: described chain box is made of the elastic telescopic joint of importing chain box, discharging chain barrel and be sealedly attached between the two for dividing attachment structure.
Described input chain box, discharging chain barrel connecting end have square flange, described elastic telescopic joint is a metal bellows, metal bellows is made of the square flange at two ends, middle corrugated body, all there is a rectangular cross-section groove two square flange exterior edge faces, seal ring is housed in the groove, corrugated body has the rectangular cross-section, and metal bellows is connected with bolt and nut by square flange respectively with input chain box, discharging chain barrel.
Have neck bush in the described metal bellows, neck bush is a square structure, and an end is fixed on the metal bellows one end square flange inner ring, and the other end is a free end.
Described input chain box, discharging chain barrel connecting end have square flange, described elastic telescopic joint is a rubber pipe, rubber pipe is made up of the square flange at two ends, middle rubber body, rubber body has swelling-waist shape, two ends are the quad seal face, two square flanges are enclosed within the rubber body two ends respectively, and rubber pipe is connected with bolt and nut by square flange respectively with input chain box, discharging chain barrel.
Beneficial effect: the scalable chain box of the utility model, satisfied centre of sprocket apart from the requirement that changes, reduced chain-driven sealing configuration internal stress, each sealing configuration all can normally be played a role, in scalable chain box, can store the lubricant oil of normal quantity, guarantee the normal working life of chain.Simultaneously, because centre of sprocket apart from can regulating, after chain uses a period of time to elongate, is suitably regulated the centre of sprocket distance between sprocket wheel input device, the sprocket wheel output unit, tension chain can prolong working life of chain.
Description of drawings
Fig. 1 is the chain box structural representation that the utility model uses the metal bellows slip joint.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the zoomed-in view of Z among Fig. 1, is the metal bellows schematic partial cross-sectional view.
Fig. 4 is the chain box structural representation that the utility model uses the rubber pipe slip joint.
Fig. 5 is the plan view of Fig. 4.
Fig. 6 is the zoomed-in view of Y among Fig. 4, is the rubber pipe schematic partial cross-sectional view.
Embodiment
Embodiment one:
As Fig. 1, Fig. 2, shown in Figure 3, scalable chain box comprises input chain box 1, discharging chain barrel 2, elastic telescopic joint, and input chain box 1, discharging chain barrel 2 are made by the steel plate welding, and connecting end is welded with square flange 4,5 respectively.Elastic telescopic joint adopts metal bellows 3, and metal bellows 3 is scalable, is used for compensating the variation of sprocket wheel centre distance.Metal bellows 3 is by square flange 31, corrugated body 32, square flange 33, neck bush 34 is formed, corrugated body 32 has the rectangular cross-section, rectangle is used round-corner transition for four jiaos, avoid producing the stress concentration phenomenon, the extending amount of corrugated body is determined according to the maximum variable quantity of centre of sprocket distance, square flange 31, uniform bolt hole is arranged on the square flange 33, end face has the rectangular cross-section groove, be used for placing respectively O type oil-resistant seal ring 6,7, square flange 31, square flange 33 respectively with the input chain box 1, the square flange 4 of discharging chain barrel 2, after 5 usefulness bolt and nuts connect, make O type oil-resistant seal ring 6,7 compressions produce resiliently deformable and play seal action.Scalable chain box is connected the back with sprocket wheel input device, sprocket wheel output unit with bolt and nut and forms closed container, stores lubricant oil and is used to lubricate, cool off chain.Neck bush 34 is a square structure, is positioned at corrugated body 32 inside, and an end is welded on square flange 31 inner rings, and it is free end that the other end stretches into square flange 33 inner rings, is used to protect corrugated body 32 to avoid the chain bump.
Embodiment two:
As Fig. 4, Fig. 5, shown in Figure 6, the elastic telescopic joint of scalable chain box adopts rubber pipe 8, form by square flange 81, rubber body 82, square flange 83, rubber body 82 has swelling-waist shape, there is the cord fabric reinforced layer centre, two ends are quad seal end 82a, 82b, square flange 81,83 is a steel, be enclosed within rubber body 82 two ends, uniform bolt hole is arranged on it, when square flange 81,83 respectively with after square flange 4, the 5 usefulness bolt and nuts of input chain box 1, discharging chain barrel 2 are connected, sealed end 82a, the 82b of compressing rubber body 82, produce pretightening force, produce seal action.
Claims (4)
1, a kind of scalable chain box is characterized in that: described chain box is made of the elastic telescopic joint of importing chain box (1), discharging chain barrel (2) and be sealedly attached between the two for dividing attachment structure.
2, scalable according to claim 1 chain box, it is characterized in that: described input chain box (1), discharging chain barrel (2) connecting end has square flange (4) respectively, (5), described elastic telescopic joint is metal bellows (3), metal bellows (3) is by the square flange (31) at two ends, (33) and middle corrugated body (32) constitute, two square flanges (31), (33) all there is a rectangular cross-section groove exterior edge face, seal ring (6) is housed respectively in the groove, (7), corrugated body (32) has the rectangular cross-section, metal bellows (3) passes through square flange (4) with input chain box (1), (31) connect with bolt and nut, metal bellows (3) passes through square flange (5) with discharging chain barrel (2), (33) connect with bolt and nut.
3, as scalable chain box as described in the claim 2, it is characterized in that: have neck bush (34) in the described metal bellows (3), neck bush (34) is a square structure, and an end is fixed on metal bellows (3) one end square flange (31) inner rings, and the other end is a free end.
4, scalable according to claim 1 chain box, it is characterized in that: described input chain box (1), discharging chain barrel (2) connecting end has square flange (4), (5), described elastic telescopic joint is rubber pipe (8), rubber pipe (8) is by the square flange (81) at two ends, (83) Zhong Jian rubber body (82) is formed, rubber body (82) has swelling-waist shape, two ends are quad seal end (82a), (82b), two square flanges (81), (83) be enclosed within rubber body (82) two ends respectively, rubber pipe (8) passes through square flange (4) with input chain box (1), (81) connect with bolt and nut, rubber pipe (8) passes through square flange (5) respectively with discharging chain barrel (2), (83) connect with bolt and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200698776U CN201184408Y (en) | 2008-03-27 | 2008-03-27 | Telescopic chain box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200698776U CN201184408Y (en) | 2008-03-27 | 2008-03-27 | Telescopic chain box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184408Y true CN201184408Y (en) | 2009-01-21 |
Family
ID=40272147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200698776U Expired - Fee Related CN201184408Y (en) | 2008-03-27 | 2008-03-27 | Telescopic chain box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201184408Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525751A (en) * | 2019-09-16 | 2019-12-03 | 林泓毅 | A kind of package packing machine chain breakage protection device |
-
2008
- 2008-03-27 CN CNU2008200698776U patent/CN201184408Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525751A (en) * | 2019-09-16 | 2019-12-03 | 林泓毅 | A kind of package packing machine chain breakage protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20110327 |