CN202752694U - Tensioning device for band sawing machine - Google Patents

Abstract

The utility model provides a tensioning device for a band sawing machine, relates to the tensioning device, and solves the problems that a tensioning device for the band sawing machine in the prior art is unreasonable in structure, severe in wear and high in replacement frequency due to sliding friction between a leas screw rod and a lateral plate of a base of the tensioning device, the replacement process of a sliding block of the tensioning device is complicated compared with other elements, and machining cost of the band sawing machine is high. A long groove is machined in the middle portion of the upper surface of a bottom plate along the length direction, two sides of the upper surface of the bottom plate are respectively provided with a sliding block adjusting plate along the length direction of the bottom plate, a through shaft hole is arranged in the middle of the sliding block along the thickness direction of the sliding block, a through hole communicated with a through groove is arranged in the center of a lateral end face of an upper plate adjacent to a lateral plate, the sliding block is arranged between the bottom plate and the sliding block adjusting plates, the sliding block is connected with the bottom plate and the sliding block adjusting plates in a sliding mode, an adjusting block is fixedly connected with the center of the outer end of a connecting shaft, an adjusting nut is disposed in the through groove and fixedly connected with the through groove, and a push bearing is arranged in a counter bore and a ring-shaped groove. The tensioning device is used for adjustment of the tightness degree of a band saw blade.

Description

A kind of band sawing machine tensioning apparatus

Technical field

The utility model relates to a kind of tensioning apparatus.

Background technology

Tensioning apparatus is the important component part of band sawing machine, its effect is the rate of tension of accommodation zone saw blade, but existing band sawing machine tensioning device structure is unreasonable, the side plate of lead screw shaft and tensioner base adopts sliding friction, serious wear, replacement frequency is high, and the slide block of tensioning apparatus is more loaded down with trivial details than other component replacement processes after damaging, and causes the processing cost of band sawing machine high.

The utility model content

The utility model is unreasonable for solving existing band sawing machine tensioning device structure, the side plate of lead screw shaft and tensioner base adopts sliding friction, serious wear, replacement frequency is high, the slide block of tensioning apparatus is more loaded down with trivial details than other component replacement processes after damaging, cause the high problem of processing cost of band sawing machine, and then a kind of band sawing machine tensioning apparatus is provided.

The utility model is to solve the problems of the technologies described above the technical scheme of taking to be:

A kind of band sawing machine tensioning apparatus of the present utility model comprises L-type base, lead screw shaft, slide block and two slide block adjustable plates, the L-type base by horizontally disposed base plate with consist of with the vertical affixed side plate of an end of described base plate, described tensioning apparatus also comprises adjusting nut and thrust bearing, the middle part of plate upper surface is processed with long recess along its length, long recess is through the upper and lower surface of base plate, the center of side plate interior plate face is processed with locating hole, and the center of side plate outer panel face is processed with the counterbore that communicates with described locating hole; The upper surface of base plate respectively is provided with a slide block adjustable plate along the both sides of floor length direction, and slide block adjustable plate upper surface equidistantly is processed with a plurality of screwed holes along its length side by side, and slide block adjustable plate and base plate are connected by screw; Slide block consists of by horizontally disposed upper plate with the affixed projection in the middle part of the lower surface of upper plate, the middle part of slide block is processed with the axis hole of perforation along the thickness direction of slide block, projection is arranged in the long recess and with long recess and is slidingly connected, upper plate is processed with groove near a side of side plate along upper plate thickness direction, the side channel inwall that groove is adjacent with projection is processed with the screw rod limiting groove that communicates with groove, the center of the side end face that upper plate is adjacent with side plate is processed with the through hole that communicates with groove, slide block is arranged between base plate and the slide block adjustable plate, and slide block and base plate and slide block adjustable plate are slidingly connected; Lead screw shaft is comprised of connecting axle, bearing fixed axis, leading screw main body and regulating block, the vertically coaxial setting of connecting axle, bearing fixed axis and leading screw main body also fixes as one successively, the center of connecting axle outer end is connected with regulating block, the center of the side that the bearing fixed axis is adjacent with the leading screw main body is processed with cannelure, and the aperture of cannelure and locating hole is identical; Adjusting nut is arranged in the groove and is fastenedly connected with groove, and the leading screw main body is passed successively thrust bearing, locating hole, through hole and is threaded with adjusting nut, and the end of leading screw main body places in the screw rod limiting groove, and thrust bearing is arranged in counterbore and the cannelure.

The utility model compared with prior art has following beneficial effect: roll in thrust bearing during lead screw shaft work, reduced the friction to lead screw shaft, reduced the replacement frequency of lead screw shaft, the leading screw main body is threaded with adjusting nut, when the adjusting nut thread damage, only need to change adjusting nut and get final product, do not need to change the more loaded down with trivial details slide block of unloading process, thereby reduced the processing cost of band sawing machine.

Description of drawings

Fig. 1 is that the master of a kind of band sawing machine tensioning apparatus of the present utility model looks installation diagram, and Fig. 2 is the top view of Fig. 1, and Fig. 3 is the front view of lead screw shaft of the present utility model, and Fig. 4 is that the master of slide block of the present utility model looks cutaway view, and Fig. 5 is the top view of Fig. 4.

The specific embodiment

The specific embodiment one: in conjunction with Fig. 1～Fig. 5 explanation, a kind of band sawing machine tensioning apparatus of present embodiment comprises L-type base 1, lead screw shaft 2, slide block 3 and two slide block adjustable plates 4, L-type base 1 by horizontally disposed base plate 1-1 with consist of with the vertical affixed side plate 1-2 of an end of described base plate 1-1, described tensioning apparatus also comprises adjusting nut 5 and thrust bearing 6, the middle part of base plate 1-1 upper surface is processed with long recess 1-1-1 along its length, long recess 1-1-1 is through the upper and lower surface of base plate 1-1, the center of side plate 1-2 interior plate face is processed with locating hole 1-2-1, and the center of side plate 1-2 outer panel face is processed with the counterbore 1-2-2 that communicates with described locating hole 1-2-1; The upper surface of base plate 1-1 respectively is provided with a slide block adjustable plate 4 along the both sides of base plate 1-1 length direction, and slide block adjustable plate 4 upper surfaces equidistantly are processed with a plurality of screwed hole 4-1 along its length side by side, and slide block adjustable plate 4 is connected by screw 4-2 with base plate 1-1; Slide block 3 consists of by horizontally disposed upper plate 3-1 with the affixed projection 3-2 in the middle part of the lower surface of upper plate 3-1, the middle part of slide block 3 is processed with the axis hole 3-3 of perforation along the thickness direction of slide block 3, projection 3-2 is arranged in the long recess 1-1-1 and with long recess 1-1-1 and is slidingly connected, upper plate 3-1 is processed with groove 3-1-1 near the side of side plate 1-2 along upper plate 3-1 thickness direction, the side channel inwall that groove 3-1-1 is adjacent with projection 3-2 is processed with the screw rod limiting groove 3-4 that communicates with groove 3-1-1, the center of the side end face that upper plate 3-1 is adjacent with side plate 1-2 is processed with the through hole 3-5 that communicates with groove 3-1-1, slide block 3 is arranged between base plate 1-1 and the slide block adjustable plate 4, and slide block 3 is slidingly connected with base plate 1-1 and slide block adjustable plate 4; Lead screw shaft 2 is comprised of connecting axle 2-1, bearing fixed axis 2-2, leading screw main body 2-3 and regulating block 2-4, connecting axle 2-1, bearing fixed axis 2-2 and vertically coaxial setting of leading screw main body 2-3 also fix as one successively, the center of connecting axle 2-1 outer end is connected with regulating block 2-4, the center of the side that bearing fixed axis 2-2 is adjacent with leading screw main body 2-3 is processed with cannelure 2-2-1, and cannelure 2-2-1 is identical with the aperture of locating hole 1-2-1; Adjusting nut 5 is arranged in the groove 3-1-1 and is fastenedly connected with groove 3-1-1, and leading screw main body 2-3 passes successively thrust bearing 6, locating hole 1-2-1, through hole 3-5 and is threaded with adjusting nut 5, and the end of leading screw main body 2-3 places in the screw rod limiting groove 34; Thrust bearing 6 is arranged in counterbore 1-2-2 and the cannelure 2-2-1.

The specific embodiment two: in conjunction with Fig. 4 and Fig. 5 explanation, the projection 3-2 of present embodiment is cylinder.Other composition is identical with the specific embodiment one with connected mode.

Operation principle: lead screw shaft 2 is rolled in thrust bearing 6, leading screw main body 2-3 is threaded with adjusting nut 6, when adjusting nut 6 will be with movable slider 3 to move when leading screw main body 2-3 moves, axis hole 3-3 links to each other with power transmission shaft on the band sawing machine, power transmission shaft on the band sawing machine links to each other with bands for band, the moving direction that changes slide block 3 is namely regulated the tightness of bands for band, but rotate in the direction of the clock regulating block 2-4 puller strap saw blade with torque spanner, in running order, rotate regulating block 2-4 bands for band with torque spanner to counter clockwise direction and unclamp, be in off working state.

Claims (2)

1. band sawing machine tensioning apparatus, described tensioning apparatus comprises L-type base (1), lead screw shaft (2), slide block (3) and two slide block adjustable plates (4), L-type base (1) by horizontally disposed base plate (1-1) with consist of with the vertical affixed side plate of an end (1-2) of described base plate (1-1), it is characterized in that: described tensioning apparatus also comprises adjusting nut (5) and thrust bearing (6), the middle part of base plate (1-1) upper surface is processed with long recess (1-1-1) along its length, long recess (1-1-1) is through the upper and lower surface of base plate (1-1), the center of side plate (1-2) interior plate face is processed with locating hole (1-2-1), and the center of side plate (1-2) outer panel face is processed with the counterbore (1-2-2) that communicates with described locating hole (1-2-1); The upper surface of base plate (1-1) respectively is provided with a slide block adjustable plate (4) along the both sides of base plate (1-1) length direction, slide block adjustable plate (4) upper surface equidistantly is processed with a plurality of screwed holes (4-1) along its length side by side, and slide block adjustable plate (4) is connected by screw (4-2) with base plate (1-1); Slide block (3) consists of by horizontally disposed upper plate (3-1) with the affixed projection (3-2) in the middle part of the lower surface of upper plate (3-1), the middle part of slide block (3) is processed with the axis hole (3-3) of perforation along the thickness direction of slide block (3), projection (3-2) is arranged in the long recess (1-1-1) and with long recess (1-1-1) and is slidingly connected, upper plate (3-1) is processed with groove (3-1-1) near a side of side plate (1-2) along upper plate (3-1) thickness direction, the side channel inwall that groove (3-1-1) is adjacent with projection (3-2) is processed with the screw rod limiting groove (3-4) that communicates with groove (3-1-1), the center of the side end face that upper plate (3-1) is adjacent with side plate (1-2) is processed with the through hole (3-5) that communicates with groove (3-1-1), slide block (3) is arranged between base plate (1-1) and the slide block adjustable plate (4), and slide block (3) is slidingly connected with base plate (1-1) and slide block adjustable plate (4); Lead screw shaft (2) is comprised of connecting axle (2-1), bearing fixed axis (2-2), leading screw main body (2-3) and regulating block (2-4), connecting axle (2-1), bearing fixed axis (2-2) and vertically coaxial setting of leading screw main body (2-3) also fix as one successively, the center of connecting axle (2-1) outer end is connected with regulating block (2-4), the center of the side that bearing fixed axis (2-2) is adjacent with leading screw main body (2-3) is processed with cannelure (2-2-1), and cannelure (2-2-1) is identical with the aperture of locating hole (1-2-1); Adjusting nut (5) is arranged on groove and (is fastenedly connected in 3-1-1) and with groove (3-1-1), leading screw main body (2-3) is passed successively thrust bearing (6), locating hole (1-2-1), through hole (3-5) and is threaded with adjusting nut (5), and the end of leading screw main body (2-3) places in the screw rod limiting groove (3-4); Thrust bearing (6) is arranged in counterbore (1-2-2) and the cannelure (2-2-1).

2. a kind of band sawing machine tensioning apparatus according to claim 1 is characterized in that: described projection (3-2) is cylinder.

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