CN2313720Y - Carpenter's table band saw - Google Patents
Carpenter's table band saw Download PDFInfo
- Publication number
- CN2313720Y CN2313720Y CN 97238635 CN97238635U CN2313720Y CN 2313720 Y CN2313720 Y CN 2313720Y CN 97238635 CN97238635 CN 97238635 CN 97238635 U CN97238635 U CN 97238635U CN 2313720 Y CN2313720 Y CN 2313720Y
- Authority
- CN
- China
- Prior art keywords
- upper wheel
- wheel
- cam lever
- bearing
- support bar
- 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 - Fee Related
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- Sawing (AREA)
Abstract
The utility model relates to a carpenter 's table type band sawing machine which is composed of a table frame, a supporting frame, a lower saw wheel and an upper saw wheel. The upper saw wheel adopts a double-pole support structure. Two bearings for supporting the upper saw wheel adopt the form of limiting in the left direction, the right direction and move in the upper direction, causing the bears to automatically center when the bearings receives uneven force. A saw blade automatic tensioning structure adopts a cam and lever form. The utility model has the advantages of simple structure, low cost, convenient operation, reduced frequency of maintenance, etc., and extends the service life of the bearings.
Description
The utility model relates to a kind of desk-top wood working band sawing machine.
At present, the desk-top wood working band sawing machine of producing on China domestic market has two kinds usually: a kind of is that upper wheel is the single-column supporting structure, and another kind is that upper wheel is the twin columns supporting structure.No matter be single-column supporting structure or twin columns supporting structure, all have two problems to fail to solve preferably always: the one, the bearing of supporting upper wheel adopts fixed installation, and when the sawtooth of saw blade and hump are heated irregular and make the power that is applied on the saw wheel inconsistent, make the upper wheel bearing be easy to generate off-centre, and can not automatic aligning after the bearing fixing, therefore, cause bearing easy to wear, service life is short; The 2nd, after friction was heated during saw blade work, the saw blade elongation had only the distance of regulating between the up and down saw wheel, just can make the saw blade operate as normal.This control method has three kinds usually: (1) is regulated by hand.(2) adopting hydraulic means to regulate, is 88209620 " fluid pressure type bands for band autobalance tensioning apparatus " as number of patent application.(3) adopting spring assembly to regulate, is 88211037 " band sawing machine upper wheel elastic floating support device " as number of patent application.Regulate not only time-consuming but also require great effort by hand; With the hydraulic means adjusting a complete hydraulic system must be arranged, involve great expense cost up; The employing spring assembly is regulated, and when spring is not enough, must change, and the replacing process is cumbersome.
The purpose of this utility model is to provide a kind of simple in structure, cost is low, the upper wheel bearing can automatic aligning, saw blade can auto-tensioning desk-top wood working band sawing machine.
The utility model is according to the principle and the lever principle of expanding with heat and contract with cold, can reduce the stressed principle of block bearing according to upper wheel with the twin columns supporting, the utility model is adopted upper wheel twin columns supporting structure, two design bearing of supporting upper wheel are become left and right, go up movably form of tripartite spacing, below, when making shaft strength irregular, can reverse automatically, thereby reduce the wearing and tearing of bearing; Saw blade auto-tensioning structure is designed to the form that cam adds lever, promptly utilizes the direction of the equilibrant force adjustment cam of lever, when making saw blade stretch sheet, cam can reach the purpose of auto-tensioning saw blade automatically with upper wheel jack-up.
Owing to adopted technique scheme, the utlity model has simple in structure, cost is low, easy and simple to handle, reduce characteristics such as maintenance frequency.According on probation, the upper wheel bearing improves more than 10 times service life.
Description of drawings:
Fig. 1 looks schematic diagram for the utility model master.
Fig. 2 is the utility model side-looking generalized section.
Fig. 3 is upper wheel bearing block (6) and upper wheel bearing (15) assembling partial enlarged drawing.
Fig. 4 is the main schematic diagram of looking of cam lever (13).
Fig. 5 is cam lever (a 13) schematic side view.
Be further described below in conjunction with accompanying drawing: the utility model is made up of stand (1), bearing support (4), following saw wheel (2), upper wheel (7) four major parts.The belt pulley (10) of following saw wheel (2) and transferring power fixedly is assemblied on the stand (1).On the platen of stand (1), be fixed with backup plate (18) and backup plate regulating handle (3) and cramp bar regulating handle (9) and bevel gear (11); Supporting partly is made up of bearing support (4), pillar (8), upper wheel lower support bar (12), upper wheel upper support bar (14), cam lever (13) and balancing pole (5).Upper wheel lower support bar (12) and upper wheel upper support bar (14) are mounted in the pillar (8), and pillar (8) is fixed on the bearing support (4); Cam lever (13) is the shape of cams at two ends, intermediate cylindrical, be disposed across between upper wheel lower support bar (12) and the upper wheel upper support bar (14), upper wheel upper support bar (14) is pressed on the cam position of cam lever (13), and when not working, cam is in the position minimum state; Balancing pole (5) is fixed on the cylinder part of cam lever (13), and on balancing pole (5), design has 3-8 small sircle hole, and the utility model is 3, in order to weigh down the lift heavy thing; Upper wheel partly is made up of upper wheel (7), upper wheel bearing block (6) and upper wheel bearing (15).Under upper wheel bearing block inside, design has a semicircle orifice, and in semicircle orifice, cover is put a ball (16); Upper wheel bearing (15) is left and right, upward tripartite spacing in upper wheel bearing block (6) by screw (17), and the below is by ball (16) supporting.
During the utility model work, between upper wheel (7) and following saw wheel (2), install bands for band, make bevel gear (11) action, upper wheel lower support bar (12) is up pushed up by regulating cramp bar regulating handle (9), just upper wheel (7) is up moved, with the saw blade tensioning; On balancing pole (5), weigh down with a weight equilbrium position of tensioning when making cam lever (13) utilize the lever force of weight to be in saw blade not work; Control backup plate regulating handle (3), the wood that will be sawed is pressed on the backup plate (18), and starter motor, belt pulley (10) drive saw wheel (2) and saw blade rotation down, and wood is cut; When friction after the saw blade work is subjected to thermal stretching, saw blade reduces the power that is pressed on the cam lever (13) by upper wheel (7) and upper wheel upper support bar (14), bob is hung in the weight on the balancing pole (5), then the effect by lever force is rotated cam lever (13), when forwarding the position that cam continues to be compressed by upper wheel upper support bar (14) to, keep poised state again, make the saw blade auto-tensioning; When the sawtooth of saw blade and hump irregular when making the power that is pressed on the upper wheel (7) inhomogeneous because of being heated, make two bearings (15) of supporting upper wheel (7) produce eccentric, bearing (15) is then made adjusting by mobile on ball (16), make the bearing (15) and the axle of upper wheel (7) keep concentric, thereby reduced the wearing and tearing of bearing, prolonged the service life of upper wheel bearing (15).
Claims (3)
1, a kind of desk-top wood working band sawing machine, by stand (1), following saw wheel (2), bearing support (4) and upper wheel (7) are formed.Upper wheel is the twin columns supporting structure, it is characterized in that between upper wheel lower support bar (12) and upper wheel upper support bar (14), and design has a cam lever (13), upper wheel upper support bar (14) to be pressed on the cam position of cam lever (13); Under upper wheel bearing block inside, design has a semicircle orifice, and in semicircle orifice, cover is placed with ball (16), and upper wheel bearing (15) is left and right, upward tripartite spacing in upper wheel bearing block (6) by screw (17), and support with ball (16) below.
2, desk-top wood working band sawing machine according to claim 1 is characterized in that the shape of cam lever (13) for cams at two ends, intermediate cylindrical, on the cylinder part of cam lever (13), is fixed with a balancing pole (5).
According to claim 1,2 described desk-top wood working band sawing machines, it is characterized in that on balancing pole (5) that 3, design has 3-8 small sircle hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97238635 CN2313720Y (en) | 1997-07-30 | 1997-07-30 | Carpenter's table band saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97238635 CN2313720Y (en) | 1997-07-30 | 1997-07-30 | Carpenter's table band saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2313720Y true CN2313720Y (en) | 1999-04-14 |
Family
ID=33948906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97238635 Expired - Fee Related CN2313720Y (en) | 1997-07-30 | 1997-07-30 | Carpenter's table band saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2313720Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111906853A (en) * | 2020-08-11 | 2020-11-10 | 江苏东巨机械科技有限公司 | Band saw machine with over-and-under type saw wheel |
-
1997
- 1997-07-30 CN CN 97238635 patent/CN2313720Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111906853A (en) * | 2020-08-11 | 2020-11-10 | 江苏东巨机械科技有限公司 | Band saw machine with over-and-under type saw wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |