CN2713225Y - Pretightening and supporting structure for tension pulley - Google Patents
Pretightening and supporting structure for tension pulley Download PDFInfo
- Publication number
- CN2713225Y CN2713225Y CN 200420037755 CN200420037755U CN2713225Y CN 2713225 Y CN2713225 Y CN 2713225Y CN 200420037755 CN200420037755 CN 200420037755 CN 200420037755 U CN200420037755 U CN 200420037755U CN 2713225 Y CN2713225 Y CN 2713225Y
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- CN
- China
- Prior art keywords
- supporting sleeve
- supporting
- fuse
- tightening wheel
- expansion tightening
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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 - Lifetime
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Abstract
The utility model relates to a tension supporting structure for driving chain, concretely which is pretightening and supporting structure for tension pulley. It comprises a supporting sleeve, a mandrel positioned in the supporting sleeve and a connecting plate which is connected to either. The utility model is characterized in that the supporting sleeve and the mandrel both have supporting parts, and a pool of buffer springs and a regulating piece controlled press platen which presses on a buffer spring between the supporting parts of the supporting sleeve and the mandrel. The buffer spring has advantage over the elastic and ageing resistance of rubber sticker, and it can alter pretightening force by various ways of regulating in the process of working, and it has longer lifetime of impact resistance and better effect of vibration damping. And it has a simple structure, and it is convenient to install and it easily ensures accuracy of the structure.
Description
[technical field]
The utility model relates to and a kind of drive chain is carried out the supporting structure of tensioner, expansion tightening wheel pretension supporting structure specifically.
[background technique]
Adopt chain transmission between dobby head and the loom main frame, chain lax in transmission process bears alternate load, have suitable impact force and vibration, need carry out tensioner (belt tensioner acts on the slack side of chain usually) to chain B, with vibration damping and locking (see figure 1).
Originally in order to vibration damping and locking belt tensioner A shown in Fig. 2,3, it is the side's of comprising cover A4, square core A5, fulcrum connecting plate A6, fulcrum A7 and expansion tightening wheel A11 mainly, wherein in the square core A5 side of the being positioned at cover A4, respectively filled a rubber filler strip A12 in four triangular cavities that between the two, form, fulcrum connecting plate A6 is connected on the square core, fulcrum A7 is welded on the fulcrum connecting plate, and expansion tightening wheel A11 is spacing on fulcrum A7 by collar A10.Under the working state, side cover A4 is fixed on the coupling shaft A1 through connecting sleeve A2, contiguous block A3, square core phase the other side overlaps the reactive torque that rotates extruding rubber filler strip and be subjected to coming from this rubber filler strip, this reactive torque passes to expansion tightening wheel by fulcrum connecting plate A6, expansion tightening wheel is supported on the chain with certain pretightening force F, prevent that chain is lax, reduces chain vibration.This shows that the pretightening force of expansion tightening wheel depends on that elasticity, the belt tensioner of rubber filler strip itself assemble the back extruded degree of rubber filler strip and overlap the degree that makes the distortion of rubber filler strip of rotating by square core phase the other side.Therefore, in a single day the belt tensioner that assembles installs and fixes, and just is difficult to regulate the pretightening force of expansion tightening wheel support chains again; After assembling was finished, the cylindrical of rubber filler strip contacted with side's cover, square core, and distortion (distortion) ability is little, may obtain bigger pretightening force by increasing its degreeof tortuosity hardly; Therefore, in order to increase the pretension ability of belt tensioner, often when assembling, select the rubber filler strip of big specification for use, but have bigger difficulty at fit on; And the easy ageing failure of rubber filler strip, reduce self elasticity, the shock-resistant life-span is shorter, only has 7000 hours, and effectiveness in vibration suppression is relatively poor, and the chain minimum amplitude only reaches 22 millimeters.
In addition, coupling shaft A1 adopts screw A8 to connect (node Aa) with connecting sleeve A2; Contiguous block A3 adopts screw A9 to be connected (node Ab) with connecting sleeve A2; Contiguous block A3 adopts electric welding to connect (node Ac) with side cover A4; Square core A5, fulcrum connecting plate A6, expansion tightening wheel fulcrum A7 adopt electric welding to connect (node Ad, Ae), component part is many, mechanical coupling point reaches the A5 place each other, and screw attachment is easily loosening at vibrational state, fulcrum connecting plate A6 and expansion tightening wheel fulcrum A7 have the perpendicularity requirement, and electric welding connects difficult quality control.
[model utility content]
The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome defective of the prior art, and a kind of new expansion tightening wheel pretension supporting structure is provided.For this reason, the utility model is taked following technical proposals:
A kind of expansion tightening wheel pretension supporting structure, comprise supporting sleeve, be positioned at the fuse of supporting sleeve and be connected in the two one of on connecting plate, it is characterized in that described supporting sleeve and fuse all have support, be equipped with pool of buffer spring and the pressing plate that is pressed at least one damping spring between the support of the two by adjusting element control.Under the working state, the fuse (or supporting sleeve) that does not link to each other with connecting plate is fixing, the supporting sleeve (or fuse) that order links to each other with connecting plate rotates with the extruding damping spring relative to fuse (or supporting sleeve), thereby make the supporting sleeve (or fuse) that links to each other with connecting plate be subjected to coming from the reactive torque of damping spring, this reactive torque passes to by connecting plate the expansion tightening wheel that is supported on the connecting plate is installed, expansion tightening wheel is supported on the chain with certain pretightening force, prevents that chain is lax, reduces chain vibration; Damping spring in this structure has the elasticity, distortion (distortion) ability and the ageing resistance that are better than the rubber filler strip by the distortion generation effect of its relative support edge of elastic tip; During assembling, can select specification identical but damping spring that elasticity is different can not increase assembling difficulty because of increasing elasticity; In the working procedure, the position of regulating pressing plate by adjusting element can change the extruded degree of damping spring, thereby the change expansion tightening wheel is supported on the pretightening force on the chain; And, when mounted, can make square core phase the other side be enclosed within the bigger angular range rotation and obtain required pretightening force because damping spring has stronger distortion (distortion) ability and damping spring has bigger deformation space; The shock-resistant life-span is longer, and effectiveness in vibration suppression is better.
Described expansion tightening wheel pretension supporting structure is characterized in that described damping spring has a support edge and two extended elastic tip from the support edge; Described supporting sleeve has square inner bore, and its hole wall is its support; Described fuse is similarly square, and the outer wall of fuse is its support; And form four triangular cavities between the square inner bore of square core and supporting sleeve; Each triangular cavity is built-in with a described damping spring, and the support edge of damping spring leans against the outer wall of square core, and at least one elastic tip of damping spring is supported on the hole wall of square inner bore.In the course of the work, the amplitude of deformation of elastic tip when fuse and supporting sleeve relatively rotate that the damping spring of this special shape is supported on the square inner bore hole wall is big, make the elastic force that provides abundant in the larger context that relatively rotates of fuse and supporting sleeve, so that the pretightening force of expansion tightening wheel is set.
Described expansion tightening wheel pretension supporting structure is characterized in that described adjusting element is by being threaded in the screw rod on the supporting sleeve.By adjusting screw rod, can be at the deformation extent of regulating damping spring in the scope arbitrarily that relatively rotates of fuse and supporting sleeve, so that expansion tightening wheel is supported on the chain with comparatively suitable pretightening force.
Described expansion tightening wheel pretension supporting structure is characterized in that described supporting sleeve and connecting plate are affixed, and described fuse is fixed on the tension shaft, is connected with ring washer on this tension shaft.So that expansion tightening wheel pretension supporting structure is remained on suitable working position, guarantee that each position of damping spring effectively contacts with supporting sleeve with fuse.
Described expansion tightening wheel pretension supporting structure is characterized in that on the described connecting plate by the mandrel that has been threaded.Perpendicularity between connecting plate plane and the mandrel can be guaranteed that quality is guaranteed by machine tooling.
The utility model is compared with the technological scheme of existing Tensioning structure, and its damping spring has elasticity and the ageing resistance that is better than the rubber filler strip, can regulate the change pretightening force in several ways in the course of the work, and the shock-resistant life-span is longer, and effectiveness in vibration suppression is better; And simple in structure, be convenient to install, easily guarantee the accuracy of its structure.
[description of drawings]
Fig. 1 is the schematic representation that Tensioning structure passes through its expansion tightening wheel support chains.
Fig. 2 is the schematic representation of existing Tensioning structure.
Fig. 3 is the right elevation of Fig. 2.
Fig. 4 is a structural representation of the present utility model.
Fig. 5 is the right elevation of Fig. 4.
[embodiment]
Expansion tightening wheel pretension supporting structure shown in Fig. 4,5 comprises supporting sleeve 1, fuse 6, connecting plate 7, damping spring 2 and adjusting part, wherein:
Supporting sleeve 1 has square inner bore, and its hole wall is its support;
Fuse 6 is similarly square, and the outer wall of fuse is its support;
Connecting plate 7 is microscler plate object, and the one end is fixedlyed connected with supporting sleeve 1 and is integral, and its other end is by the mandrel 9 that is threaded;
Damping spring 2 roughly is the triangle of opening, comprises a support edge 21 and two extended elastic tip 22 from the support edge;
Adjusting part comprises by being threaded in the screw rod 5 on the supporting sleeve and being positioned at the pressing plate 4 of supporting sleeve, and pressing plate 4 rotating the inners that are connected screw rod 5;
Under the assembling condition, form four triangular cavities 3 between the square inner bore of square core 6 and supporting sleeve 1 and the pressing plate 4; Each triangular cavity is built-in with a damping spring, by adjusting screw rod 5, makes pressing plate 4 extruding damping springs 2, and the support edge of damping spring 2 leans against on the outer wall of square core, and the elastic tip of damping spring is supported on the hole wall of square inner bore or on the pressing plate; Fuse 6 is fixed on the tension shaft 10, is connected with ring washer 11 on this tension shaft 10, with the axial displacement of constraint fuse 6, guarantees that each position of damping spring effectively contacts with supporting sleeve with fuse.
When being installed in the working position, expansion tightening wheel 8 is installed on mandrel 9, the setting angle by actual demand adjusting fuse and tension shaft can make expansion tightening wheel be supported on the chain with suitable expanding force.
After measured, the shock-resistant life-span reaches 30000 hours, and good damping result, minimum amplitude can reach 10 millimeters.
Claims (5)
1, expansion tightening wheel pretension supporting structure, comprise supporting sleeve (1), be positioned at the fuse (6) of supporting sleeve and be connected in the two one of on connecting plate (7), it is characterized in that described supporting sleeve and fuse all have support, be equipped with pool of buffer spring (2) between the support of the two and be pressed on pressing plate (4) at least one damping spring by adjusting element (5) control.
2, expansion tightening wheel pretension supporting structure according to claim 1 is characterized in that described damping spring (2) has a support edge (21) and two extended elastic tip (2 2) from the support edge; Described supporting sleeve (1) has square inner bore, and its hole wall is its support; Described fuse (6) is similarly square, and the outer wall of fuse is its support; And form four triangular cavities (3) between the square inner bore of square core and supporting sleeve; Each triangular cavity is built-in with a described damping spring, and the support edge of damping spring leans against the outer wall of square core, and at least one elastic tip of damping spring is supported on the hole wall of square inner bore.
3, expansion tightening wheel pretension supporting structure according to claim 1 and 2 is characterized in that described adjusting element (5) is by being threaded in the screw rod on the supporting sleeve.
4, expansion tightening wheel pretension supporting structure according to claim 1 is characterized in that described supporting sleeve (1) and connecting plate (7) are affixed, and described fuse (6) is fixed on the tension shaft (10), is connected with ring washer (11) on this tension shaft (10).
5, expansion tightening wheel pretension supporting structure according to claim 1 is characterized in that on the described connecting plate by the mandrel that has been threaded (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037755 CN2713225Y (en) | 2004-07-15 | 2004-07-15 | Pretightening and supporting structure for tension pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037755 CN2713225Y (en) | 2004-07-15 | 2004-07-15 | Pretightening and supporting structure for tension pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2713225Y true CN2713225Y (en) | 2005-07-27 |
Family
ID=34871724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420037755 Expired - Lifetime CN2713225Y (en) | 2004-07-15 | 2004-07-15 | Pretightening and supporting structure for tension pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2713225Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356085C (en) * | 2004-07-14 | 2007-12-19 | 新昌鹤群机械有限责任公司 | Tensioner frame |
-
2004
- 2004-07-15 CN CN 200420037755 patent/CN2713225Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356085C (en) * | 2004-07-14 | 2007-12-19 | 新昌鹤群机械有限责任公司 | Tensioner frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20071219 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |