CN2287385Y

CN2287385Y - Low vibrasion low noise reciprocating splitting saw for body

Info

Publication number: CN2287385Y
Application number: CN 97226024
Authority: CN
Inventors: 王国权; 卜云龙
Original assignee: BEIJING AGRICULTURAL MACHINERY INSTITUTE
Current assignee: BEIJING AGRICULTURAL MACHINERY INSTITUTE
Priority date: 1997-09-11
Filing date: 1997-09-11
Publication date: 1998-08-12
Anticipated expiration: 2007-09-11

Abstract

The utility model relates to a low vibration low noise reciprocating splitting saw for a body. The utility model is a sawing device for dividing bodies in a slaughterhouse. The utility model is characterized in that a crank block type reciprocating mechanism is adopted. Compared with identical type reciprocating body splitting saws, the utility model has lower vibration and noise through the measures that a crank and a connecting rod are additionally provided with proper weight balancing blocks, vibration damping and wear resistant cushion blocks are inlaid in guide grooves of the saw blades, and vibration isolation and noise absorption layers are pasted on the inner side of the housing.

Description

The reciprocating type trunk of low vibration low noise is split half saw

The utility model is to be used for the informal voucher pig that the slaughterhouse trunk cuts apart after particularly cutting open the chest to split a kind of saw cutting device of half operation.

Scale is butchered for the efficient of trunk splitting equipment and is had higher requirement; the continuous enhancing of realizing along with public's environmental consciousness and self-healthy protect simultaneously; to the vibration of trunk splitting equipment, some other parameters that relate to human engineering of noise and have proposed more harsh requirement.Cut apart efficient in order to improve trunk, and do not make saw cutting device too complicated, butcher and used the reciprocating type trunk of crank block to split half saw in the industry morely, for example the ZPJ-500 of Wuhan meat packing machinery plant production splits half saw.Though such saw is simple in structure, splitting half efficient still can, but because this saw is a reciprocating saw with the sawing shape is that source designs, when failing to take into full account trunk and cutting apart, the running of crank, link lever high-speed and noise that vibration that the inertia force that produces and moment of inertia cause and saw blade flutter are produced, therefore, such splits vibration and the noise of half saw when work is sizable, and the vibration acceleration at the hand-held place of actual measurement surpasses 74.6m/S ², idle operator lamp is higher than 85db (A sound level), and this is all to be quite disadvantageous to operator's the health or the life-span of equipment itself.

At these problems, reciprocating type half saw of splitting of the BBN-03 type that Germany KRUPP LONRHO company produces adopts the scheme of symmetric arrangement double link double-slider with balance inertial force and moment of inertia, reduce vibration and noise, but do like this compared with the reciprocating type trunk of single connecting rod single sliding block and split almost one times major part of half saw needs increase, and interfere for fear of mechanism, the crank of this scheme designs very complicatedly, and the manufacturing requirement on machining accuracy of complete machine is very high.In fact, adopting the reciprocating type trunk of slider-crank mechanism to split half saw there is no need also to make inertia force and moment of inertia obtain complete equipilibrium.As long as being split half saw, the reciprocating type trunk of plain connecting rod, slide block is optimized balanced design, improve the size of its vital part crank and connecting rod, weight, and take some other vibration damping, vibration isolation measure reduces its vibration and noise greatly, this not only is feasible technically, also can meet the demands in the use.

The purpose of this utility model provides the reciprocating type trunk of a kind of improved low vibration low noise and splits half saw, and the vibration acceleration of its portion of the handle when work can be reduced to 8.5m/S ²Below, noise is no more than 75db (A sound level).

The purpose of this utility model is achieved in that at the end of crank and connecting rod all makes counterweight block, with the inertia force of balanced crank and connecting rod, moment of inertia; Inlaying the vibration damping high-abrasive material in the saw blade gathering sill of saw bow front end knocks with the flutter of eliminating saw blade; The part sticking flexible material layer that particularly is connected with frame plate at the hood inner surface is with vibration isolation and eliminate possible resonance.

Fig. 1 splits half saw longitudinal sectional drawing (this figure crank and connecting rod all are in the dead-centre position) according to the reciprocating type trunk that the utility model proposes.

Fig. 2 is after the utility model removes hood, and C is to upward view, (this figure crank has departed from the dead-centre position).

Fig. 3 is the utility model B-B cutaway view

Fig. 4 is the utility model A-A cutaway view

Below in conjunction with details and the working condition of accompanying drawing detailed description according to the device that the utility model proposes.

By shown in Figure 1, the power of this device is a motor (1), and motor is fixed on the frame plate (2), is fixed on the guide rail (3) that has two V-shaped grooves in addition on the frame plate (2) simultaneously, the hood (9) of saw bow (4) and liner rubber blanket R.Rotary crank (8) is fixed on the axle head L of motor (1), this crank and an elongated connecting rod (7) are hinged, the slide block (6) of the other end of connecting rod and the two V-arrangement faces of a band is hinged, this slide block can move back and forth in two V-shaped grooves of guide rail (3), one end of workpiece saw blade (5) just is fixed on the slide block (6), in the gathering sill on its other end insertion saw bow (4).Crank (8) connecting rod (7) and slide block (6) and guide rail (3) all are included within the hood (9).

In conjunction with Fig. 2, when motor shaft L drove crank (8) rotation, connecting rod (7) was done plane motion, and hinged slide block (6) thereon then moves back and forth in two V-shaped grooves of guide rail (3), workpiece saw blade (5) also moves back and forth at a high speed thereupon, realizes the sawing to trunk.As shown in Figure 2, on crank 8, the counterweight block G (dash area among the figure) that is made as one or is fixedly connected with crank is arranged; On connecting rod (7), the counterweight block H (dash area among the figure) that is made as one or connects firmly in one with connecting rod is arranged.Concrete size and the weight parameter of counterweight block G and H are preferably determined to carry out optimal design after linear independent vector method calculation mechanism inertia force and the moment of inertia, to guarantee the optimum balance effect.The counterweight block G of crank and the counterweight block H of connecting rod will make fan-shaped and rectangle respectively, and this mainly is to have considered the convenience of calculating and processing.

According to shown in Figure 3, gathering sill two sides on the saw bow (4) that saw blade (5) front end inserts, all stud with the vibration damping unworn liner K of vibration damping nylon sheet or other types with the saw blade part that fits, like this, flutter was unlikely to directly to affact the inwall of gathering sill when saw blade was done to move back and forth at a high speed.Simultaneously, for damping block K is cooled off, on the wall of gathering sill, also have cooling water entrance hole J communicate with the water source (water source does not draw among the figure).

The situation that matches with guide rail (3) of slide block (6) as seen from Figure 4, they all are inclusive within the hood (9).The inner surface of hood (9) is pasted with the vibration insulation of thick about 6mm of rubber slab composition, and this layer appearance be the sponge absorbent treatment better effects if of the sticking about 4mm of one deck again.

Claims

1, being used for the slaughterhouse trunk cuts apart; the saw cutting device of splitting half operation of informal voucher pig after particularly cutting open the chest; this device has a rotary crank (8); the hinged connecting rod (7) thereon of off-centre; connecting rod and slide block (6) are hinged; slide block moves back and forth in guide rail (3); workpiece saw blade (5) is fixed on the slide block (6); in the gathering sill on the saw blade front end insertion saw bow (4); crank; all within protective cover (9), protective cover is fastened on the frame plate (2), it is characterized in that for connecting rod, slide block guide rail:

A all has counterweight block G and the H that is made as one or is connected as one with crank and connecting rod at the end of crank (8) and connecting rod (7);

Stud with the damping block K that nylon or other damping material are made in the b gathering sill, and on the gathering sill inwall, have the cooling water hole J that is used to cool off cushion blocking;

C hood inner surface is pasted with vibration isolation, the absorbent treatment R of rubber or other vibration damping/sound absorbing materials formation.