CN201736289U - Quick tensioning mechanism and woodworking band saw with the mechanism - Google Patents
Quick tensioning mechanism and woodworking band saw with the mechanism Download PDFInfo
- Publication number
- CN201736289U CN201736289U CN2010202866237U CN201020286623U CN201736289U CN 201736289 U CN201736289 U CN 201736289U CN 2010202866237 U CN2010202866237 U CN 2010202866237U CN 201020286623 U CN201020286623 U CN 201020286623U CN 201736289 U CN201736289 U CN 201736289U
- Authority
- CN
- China
- Prior art keywords
- tensioning
- thrust bearing
- cam
- quick
- band saw
- 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
Images
Landscapes
- Sawing (AREA)
Abstract
The utility model provides a quick tensioning mechanism which is fixed to a band saw body and mainly comprises the following components: a large handwheel, a screw, a lower supporting plate, a first thrust bearing, an end cam, a second thrust bearing, a T-type screw thread plate, a spring, a slide block, a sliding bar and a cam regulator; wherein the large handwheel is fixedly connected with the screw; the screw successively penetrates the lower supporting plate, the first thrust bearing, the end cam, the second thrust bearing, the T-type screw thread plate and the spring from bottom to top; wherein the lower supporting plate, the first thrust bearing, the end cam and the second thrust bearing are successively connected closely; the T-type screw thread plate is provided with a round hole with internal thread and is connected with the screw at the upper part of the screw through screw thread; the slide block is matched with two parallel longitudinal sliding bars; an upper end and a lower end of the sliding bar are respectively fixed with the saw band body and the lower supporting plate; the spring is provided between the T-type screw thread plate and the slide block; and the cam regulator is fixedly connected with the end face cam. The quick tensioning mechanism has the following advantages: small sliding clearance, high stability, smooth movement, capacity for quick adjustment, and facilitated taking-off of the saw blade in release.
Description
Technical field
The utility model relates to a kind of mechanism for quick tensioning and contains the band saw of this mechanism.
Background technology
Strainer generally appears on the equipment that has belt, saw blade, and when equipment needed repairing or changes parts, strainer had often just been given play to its effect.Change saw blade, when diesel engine is changed belt, need unclamp original mechanism and change, tensioning again after the replacing as band sawing machine.In band saw, strainer is the important component part of band saw, and it tightly pastes the surface of clothes at wheel to saw blade with the tensile force of this mechanism spring, drives saw blade motion by the wheel rotation, thereby reaches the purpose of cutting timber.
At present the kind of saw blade strainer is more, and is rotary-type as bolt and nut, have the peripheral cam type and have the edge cam type.The rotary-type strainer of bolt and nut can not be realized quick tensioning, and unclamping or changing needs behind the saw blade to adjust; Have the mechanism for quick tensioning less stable of peripheral cam, cause vibrations easily; And the mechanism for quick tensioning that has edge cam also has certain shortcoming, as because the gap of mechanism for quick tensioning slide block and left and right sides support plate is big, causes glade plane space big during tensioning, and whole mechanism for quick tensioning moves structural instability along the left back support plate of body; Easy and other parts friction of cam mechanism is blocked when strainer need be swung easily, makes wheel can not reach adjusted state rapidly; The stage clip decrement that adopts is big, and the backhaul distance after spring unclamps is also big, and saw blade is not easy to take off.
Summary of the invention
In order to overcome above-mentioned shortcoming, the utility model provides that a kind of glade plane space is little, stability is high, motion is smooth and easy, make things convenient for mechanism for quick tensioning that saw blade takes off and the band saw that contains this mechanism in the time of adjusting rapidly and unclamp.
Mechanism for quick tensioning described in the utility model is fixed on the band saw body, mainly comprises big handwheel, screw rod, lower carrier plate, thrust bearing one, edge cam, thrust bearing two, T type thread plate, spring, slide block, sliding bar, cam adapter; Wherein big handwheel is fixedlyed connected with screw rod, the lower carrier plate that screw rod passes from bottom to top successively, thrust bearing one, edge cam, thrust bearing two, T type thread plate, spring, wherein lower carrier plate, thrust bearing one, edge cam, thrust bearing two closely link to each other successively, have tapped circular hole on the T type thread plate, at screw rod top and screw rod to be threaded, the slide block longitudinal sliding motion bar parallel with two cooperates, sliding bar is fixed with band saw body and lower carrier plate respectively at two ends up and down, and spring is between T type thread plate and slide block; Cam adapter is fixedlyed connected with edge cam.
When adjusting saw blade, at first adjust edge cam by cam adapter, make its contact that peaks, this moment, thrust bearing two was subjected to the effect of edge cam, drive whole screw rod and move up, the T type thread plate that is connected with screw rod also moves up thereupon, thereby makes the spring compression, spring promotes slide block and moves on sliding bar, makes saw blade reach initial tensioning state; Rotate big handwheel then and make screw rod rotation, and drive female T type thread plate and move on gradually, thereby slowly compress spring, make spring promote slide block and move on gradually, thereby make saw blade adjust to best tensioning state along sliding bar.
Saw blade need be adjusted into relaxed state or when saw blade changed, need adjust cam adapter once more, make edge cam become the low spot contact, under the release of spring force and under the gravity effect of wheel, slide block moves down rapidly, so saw blade unclamps.
When band saw needs work, need saw blade to be adjusted into best tensioning state, directly edge cam is adjusted into the peak contact this moment, saw blade is then in the rapid tensioning in the position of having adjusted, and needn't utilize screw rod adjustment once more, reached the purpose of quick tensioning.
Mechanism for quick tensioning described in the utility model has the following advantages:
1, mechanism for quick tensioning described in the utility model adopts edge cam and two sliding bar combining structures, and fixing two sliding bars and little with the slide block fit clearance.Its compact conformation, have good stability, improved strainer positioning accuracy and speed, overcome and be easy to generate the drawback that swings when strainer carries out tensioning.
2, mechanism for quick tensioning described in the utility model, cam mechanism is installed in the inside of mechanism for quick tensioning, i.e. the top of lower carrier plate.Reduced the friction with other parts like this, the service life of having improved cam and other parts; When mechanism for quick tensioning need be swung in the horizontal direction, can be swingingly more smooth and easy, the drawback of having blocked easily when having overcome the strainer swing.
In order to obtain better effect, mechanism for quick tensioning described in the utility model can adopt following measure:
1, mechanism for quick tensioning described in the utility model, spring wherein are butterfly spring.Can make the snap-off-distance of the stroke of edge cam greater than spring like this, saw blade is installed easily and is unloaded.
2, mechanism for quick tensioning described in the utility model also comprises one and the contacted regulating handle of lower carrier plate.The effect of regulating handle be to adjust the wheel with lower whorl at grade so that saw blade is correctly located at last wheel surface, reach saw blade even running, atwirl purpose.
3, mechanism for quick tensioning described in the utility model also comprises a regulating handle locking that is connected with regulating handle.This regulating handle locking can be locked the last wheel location of adjusting by regulating handle, thereby prevents that the position of adjusting from changing arbitrarily.
4, mechanism for quick tensioning described in the utility model, fixed form between described sliding bar and the band saw body is: sliding bar is fixed on the double threaded screw earlier, double threaded screw is connected with the loose joint bolting, and the back is bolted to loose joint on the band saw body by hex nut.This respective outer side edges gap is little, processing technology good, makes mechanism for quick tensioning have high stability and economy in swing.
5, mechanism for quick tensioning described in the utility model, described edge cam comprises that the tensioning platform is gone up piece and the tensioning platform rises piece down, mating surface between the two is divided into high plane and low degree two parts, and a side makes things convenient for the switching of high point of cam and low spot by the inclined-plane smooth transition between high face and the bottom surface; Opposite side is a rectangular shaped, can keep the position of cam at height point or low spot.
6, mechanism for quick tensioning described in the utility model, described cam adapter are a handle ball of fixedlying connected with piece under the tensioning platform liter.Move this handle ball make the tensioning platform rise down piece rotates, contact with height point that the tensioning platform is gone up piece or low spot contacts thereby finish.
The band saw that contains above-mentioned mechanism for quick tensioning described in the utility model mainly comprises mechanism for quick tensioning, saw blade, last wheel assembly, following wheel assembly, workbench, motor, band saw body, wherein strainer is fixed on the top of band saw body, upper whorl axial in the last wheel assembly is fixedlyed connected with strainer, following wheel assembly is fixed on the bottom of band saw body, saw blade distributes around last wheel assembly and following wheel assembly circumferencial direction, motor links to each other with following wheel assembly, and stationary table is on the band saw body.
The band saw that contains above-mentioned mechanism for quick tensioning that the utility model provides, realize the quick tensioning of saw blade and unclamp by mechanism for quick tensioning, Stability Analysis of Structures, easy to operate, running vibrations are little, positioning accuracy is high, can bring great convenience to the operator, and can guarantee the timber cutting quality of high-quality.
Description of drawings
Fig. 1 is the front view of mechanism for quick tensioning described in the utility model.
Fig. 2 is the side view of mechanism for quick tensioning described in the utility model.
Fig. 3 is the front view that contains the band saw of mechanism for quick tensioning described in the utility model.
Fig. 4 is the side view that contains the band saw of mechanism for quick tensioning described in the utility model.
Number description:
The big handwheel of 1-; The 2-screw rod; The 3-lower carrier plate; 4-thrust bearing one; 5-tensioning platform rises piece down; 6-tensioning platform is gone up piece; 7-thrust bearing two; 8-T type thread plate; The 9-disk spring; The 10-slide block; The 11-sliding bar; The 12-handle ball; The 13-regulating handle; The locking of 14-regulating handle; The 15-double threaded screw; 16-loose joint bolt; The 17-hex nut; The 18-mechanism for quick tensioning; The last wheel assembly of 19-; Wheel assembly under the 20-; The 21-saw blade; The 22-motor; The 23-workbench; 24-band saw body.
The specific embodiment
In conjunction with Fig. 1 to Fig. 2 mechanism for quick tensioning described in the utility model is elaborated.
Mechanism for quick tensioning described in the utility model comprises that mainly piece 5, tensioning platform are gone up piece 6, thrust bearing 27, T type thread plate 8, disk spring 9, slide block 10, sliding bar 11, handle ball 12, regulating handle locking 13, regulating handle locking 14, double threaded screw 15, loose joint bolt 16, hex nut 17 down for big handwheel 1, screw rod 2, lower carrier plate 3, thrust bearing 1, tensioning platform liter.Wherein:
Two parallel longitudinal sliding motion bar 11 lower ends and lower carrier plate 3 are fixing; Fixedly connected with double threaded screw 15 in sliding bar 11 upper ends, double threaded screw 15 is fixedlyed connected with loose joint bolt 16, the back is fixed on loose joint bolt 16 on the band saw body 24 by hex nut 17, gapped between loose joint bolt 16 and the double threaded screw 15, make the swing that mechanism for quick tensioning can be in the horizontal direction like this, to adjust wheel and lower whorl at grade,, reach saw blade even running, atwirl purpose so that saw blade is correctly located at last wheel surface; Regulating handle 13 is fixedlyed connected with lower carrier plate 3, and regulating handle locking 14 is fixedlyed connected with regulating handle 13, can adjust the swinging distance of mechanism for quick tensioning by adjusting regulating handle 13, and fix by adjusting handle locking 14.
In addition, the mating surface between the two is divided into high plane and low degree two parts, and a side makes things convenient for the switching of high point of cam and low spot by the inclined-plane smooth transition between high face and the bottom surface; Opposite side is a rectangular shaped, can keep the position of cam at height point or low spot.Handle ball 12 and tensioning platform rise down piece 5 fixedlys connected, by reconcile handle ball 12 make the tensioning platform rise down piece rotates, contact with height point that the tensioning platform is gone up piece 6 or low spot contacts thereby finish.
In conjunction with Fig. 3 to Fig. 4 the band saw that contains mechanism for quick tensioning described in the utility model is elaborated again.
The band saw that contains above-mentioned mechanism for quick tensioning described in the utility model mainly comprises mechanism for quick tensioning 18, goes up wheel assembly 19; Following wheel assembly 20; Saw blade 21; Motor 22; Workbench 23; Band saw body 24, wherein strainer is fixed 18 tops at band saw body 24, upper whorl axial in the last wheel assembly 19 is fixedlyed connected with strainer 18, following wheel assembly 20 is fixed on the bottom of band saw body 24, saw blade 21 distributes around last wheel assembly 19 and following wheel assembly 20 circumferencial directions, motor 22 links to each other with following wheel assembly 20, and workbench 23 is fixed on the band saw body.
Because strainer 18 is fixedlyed connected with the wheel shaft in the last wheel assembly 19, therefore going up wheel assembly 19 is following among the slide block 10(figure one) on move or move down, thereby the purpose that reaches tensioning saw blade 21 or unclamp saw blade 21 has realized the effect of mechanism for quick tensioning 18 thus.When last wheel assembly 19 and following wheel assembly 20 during not on a plane, saw blade 21 is bumpy motion under the drive of last wheel assembly 19 and following wheel assembly 20, can adjust the swinging distance of mechanism for quick tensioning 18 by regulating handle 13, make wheel assembly 19 and following wheel assembly 20 at same level, and fixing, thereby band saw can normally be worked stably by adjusting handle locking 14.
Claims (10)
1. a mechanism for quick tensioning is fixed on the band saw body, it is characterized in that it mainly comprises big handwheel, screw rod, lower carrier plate, thrust bearing one, edge cam, thrust bearing two, T type thread plate, spring, slide block, sliding bar, cam adapter; Wherein big handwheel is fixedlyed connected with screw rod, the lower carrier plate that screw rod passes from bottom to top successively, thrust bearing one, edge cam, thrust bearing two, T type thread plate, spring, wherein lower carrier plate, thrust bearing one, edge cam, thrust bearing two closely link to each other successively, have tapped circular hole on the T type thread plate, at screw rod top and screw rod to be threaded, the slide block longitudinal sliding motion bar parallel with two cooperates, sliding bar is fixed with band saw body and lower carrier plate respectively at two ends up and down, and spring is between T type thread plate and slide block; Cam adapter is fixedlyed connected with edge cam.
2. mechanism for quick tensioning according to claim 1 is characterized in that described spring is a butterfly spring.
3. mechanism for quick tensioning according to claim 1 and 2 is characterized in that described mechanism for quick tensioning also comprises one and the contacted regulating handle of lower carrier plate.
4. mechanism for quick tensioning according to claim 3 is characterized in that it also comprises a regulating handle locking that is connected with regulating handle.
5. according to claim 1 or 2 described mechanism for quick tensioning, it is characterized in that the fixed form between described sliding bar and the band saw body is: sliding bar is fixed on the double threaded screw earlier, double threaded screw is connected with the loose joint bolting, and the back is bolted to loose joint on the band saw body by hex nut.
6. mechanism for quick tensioning according to claim 3, it is characterized in that the fixed form between described sliding bar and the band saw body is: sliding bar is fixed on the double threaded screw earlier, double threaded screw is connected with the loose joint bolting, and the back is bolted to loose joint on the band saw body by hex nut.
7. mechanism for quick tensioning according to claim 1 and 2, it is characterized in that described edge cam comprises that the tensioning platform is gone up piece and the tensioning platform rises piece down, mating surface between the two is divided into high plane and low degree two parts, and by the inclined-plane smooth transition, opposite side is a rectangular shaped between high face and the bottom surface.
8. according to the described mechanism for quick tensioning of claim 3, it is characterized in that described edge cam comprises that the tensioning platform is gone up piece and the tensioning platform rises piece down, mating surface between the two is divided into high plane and low degree two parts, and by the inclined-plane smooth transition, opposite side is a rectangular shaped between high face and the bottom surface.
9. according to claim 1 or 2 described mechanism for quick tensioning, it is characterized in that described cam adapter is a handle ball of fixedlying connected with piece under the tensioning platform liter.
10. band saw is characterized in that it contains claim 1 or 2 described mechanism for quick tensioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202866237U CN201736289U (en) | 2010-08-10 | 2010-08-10 | Quick tensioning mechanism and woodworking band saw with the mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202866237U CN201736289U (en) | 2010-08-10 | 2010-08-10 | Quick tensioning mechanism and woodworking band saw with the mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201736289U true CN201736289U (en) | 2011-02-09 |
Family
ID=43551572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202866237U Expired - Lifetime CN201736289U (en) | 2010-08-10 | 2010-08-10 | Quick tensioning mechanism and woodworking band saw with the mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201736289U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659928A (en) * | 2013-12-19 | 2014-03-26 | 扬州海威机械制造有限公司 | Band-sawing machine for carpenters |
| CN107520911A (en) * | 2017-09-28 | 2017-12-29 | 青岛金岭电器有限公司 | Wood working band sawing machine mechanism for quick tensioning and wood working band sawing machine |
| CN110340994A (en) * | 2019-07-18 | 2019-10-18 | 叶杏 | A kind of band sawing machine |
-
2010
- 2010-08-10 CN CN2010202866237U patent/CN201736289U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659928A (en) * | 2013-12-19 | 2014-03-26 | 扬州海威机械制造有限公司 | Band-sawing machine for carpenters |
| CN103659928B (en) * | 2013-12-19 | 2016-01-06 | 扬州海威机械制造有限公司 | A kind of wood working band sawing machine |
| CN107520911A (en) * | 2017-09-28 | 2017-12-29 | 青岛金岭电器有限公司 | Wood working band sawing machine mechanism for quick tensioning and wood working band sawing machine |
| CN110340994A (en) * | 2019-07-18 | 2019-10-18 | 叶杏 | A kind of band sawing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102152261B (en) | Centering, positioning, self-locking and clamping device used in automatic press mounting special machine of automobile transmission shaft | |
| CN2846000Y (en) | Positioning device for sawing angle of sawing machine | |
| CN204094491U (en) | A kind of lathe fast clamp mechanism | |
| CN201736289U (en) | Quick tensioning mechanism and woodworking band saw with the mechanism | |
| CN201105387Y (en) | Clamping indexing attachment for crankshaft fabrication | |
| CN203045991U (en) | Inorganic nonmetallic material cutting machine | |
| CN109894658A (en) | A kind of live milling equipment of guide-track groove | |
| CN102152179A (en) | Mobile grinding machine for repair of taper hole of machine tool spindle | |
| CN203062112U (en) | Connecting rod type clamping mechanism | |
| CN211333092U (en) | Workbench for hardware product production and manufacturing | |
| CN112238358A (en) | Machining work piece clamping device | |
| CN115343029B (en) | Comprehensive fault experiment table for reciprocating machinery | |
| CN215357640U (en) | Positioning and grinding device for machining | |
| CN216503538U (en) | Workpiece clamp | |
| CN111590263B (en) | Positioner for welding | |
| CN201702819U (en) | Transverse rapid tensioning structure and woodworking belt saw thereof | |
| CN213168707U (en) | Center-separation propulsion mechanism | |
| CN204603454U (en) | A kind of saw blade damping | |
| CN201755874U (en) | Synchronous clamping mechanism of silicon bar cutting clamp | |
| CN221560978U (en) | Grinding wheel dresser of guide rail grinding machine | |
| CN220854991U (en) | Motor test fixture | |
| CN2468662Y (en) | Two side grinding machine for brake head | |
| CN216097506U (en) | Rail-type sliding auxiliary table for large-scale machine tool equipment | |
| CN205067089U (en) | Test bench with mixed magnetic bearing of polar form three -phase AC | |
| CN214134947U (en) | Adjustable inner raceway clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |