CN100356085C - Tensioner frame - Google Patents
Tensioner frame Download PDFInfo
- Publication number
- CN100356085C CN100356085C CNB200410052951XA CN200410052951A CN100356085C CN 100356085 C CN100356085 C CN 100356085C CN B200410052951X A CNB200410052951X A CN B200410052951XA CN 200410052951 A CN200410052951 A CN 200410052951A CN 100356085 C CN100356085 C CN 100356085C
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- Prior art keywords
- supporting sleeve
- fuse
- damping spring
- support
- connecting plate
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Abstract
The present invention relates to a supporting structure for tensioning transmission chains, particularly to a tensioner rack, which comprises a supporting sleeve, a core positioned in the supporting sleeve, and a connecting plate connected to the supporting sleeve or the core. The present invention is characterized in that the supporting sleeve and the core are respectively provided with a supporting part, and a group of buffer springs and a pressing plate which is butted to at least one buffer spring and is controlled by an adjusting part are arranged between the supporting parts of the supporting sleeve and the core; the buffer springs has elasticity and ageing resistance ability which are superior to rubber stickers. Pre-tensioning force can be adjusted and changed through various modes in work; the present invention has the advantages of long shock-resistant service life, good buffer effect, simple structure and convenient installation, and the structural accuracy can be easily ensured.
Description
[technical field]
The present invention relates to a kind of drive chain be carried out the supporting structure of tensioner, Tensioner frame 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 (Tensioning structure 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 Tensioning structure 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 its pretightening force again; After assembling was finished, the cylindrical of rubber filler strip contacted with side's cover, square core, and distortion (distortion) ability is little, can not obtain bigger pretightening force by increasing its degreeof tortuosity; In order to increase the pretension ability of belt tensioner, often when assembling, select the rubber filler strip of big specification for use, there is the difficulty of 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.
[summary of the invention]
The technical assignment of the technical problem to be solved in the present invention and proposition is the defective that overcomes in the existing technology, and a kind of new Tensioner frame is provided.For this reason, the present invention takes following technical proposals:
A kind of Tensioner frame, 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, make fuse and supporting sleeve relatively rotate equally with the extruding damping spring, 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 the expansion tightening wheel that is installed on the connecting plate by connecting plate, 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 tensioner element 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 Tensioner frame 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 Tensioner frame 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 Tensioner frame 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.Tensioner frame is remained on suitable working position, guarantee that each position of damping spring effectively contacts with supporting sleeve with fuse.
Described Tensioner frame 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 present invention compares 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 invention.
Fig. 5 is the right elevation of Fig. 4.
[embodiment]
Tensioner frame 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;
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;
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, a kind of Tensioner frame, 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, Tensioner frame according to claim 1 is characterized in that described damping spring (2) has a support edge (21) and two extended elastic tip (22) 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, Tensioner frame 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, Tensioner frame 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, Tensioner frame 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 |
|---|---|---|---|
| CNB200410052951XA CN100356085C (en) | 2004-07-14 | 2004-07-14 | Tensioner frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410052951XA CN100356085C (en) | 2004-07-14 | 2004-07-14 | Tensioner frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1721733A CN1721733A (en) | 2006-01-18 |
| CN100356085C true CN100356085C (en) | 2007-12-19 |
Family
ID=35912248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410052951XA Expired - Fee Related CN100356085C (en) | 2004-07-14 | 2004-07-14 | Tensioner frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100356085C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672351B (en) * | 2009-09-30 | 2011-05-11 | 东莞宏威数码机械有限公司 | Tightening mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2147175Y (en) * | 1993-01-09 | 1993-11-24 | 律宝实业有限公司 | Improved bicycle brake |
| US5951423A (en) * | 1997-10-08 | 1999-09-14 | Borg-Warner Automotive, Inc. | Mechanical friction tensioner |
| CN2713225Y (en) * | 2004-07-15 | 2005-07-27 | 新昌鹤群机械有限责任公司 | Pretightening and supporting structure for tension pulley |
-
2004
- 2004-07-14 CN CNB200410052951XA patent/CN100356085C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2147175Y (en) * | 1993-01-09 | 1993-11-24 | 律宝实业有限公司 | Improved bicycle brake |
| US5951423A (en) * | 1997-10-08 | 1999-09-14 | Borg-Warner Automotive, Inc. | Mechanical friction tensioner |
| CN2713225Y (en) * | 2004-07-15 | 2005-07-27 | 新昌鹤群机械有限责任公司 | Pretightening and supporting structure for tension pulley |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1721733A (en) | 2006-01-18 |
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