CN203626973U - Stay wire fixing structure - Google Patents

Abstract

The utility model relates to a stay wire fixing structure and aims to provide a simply structured stay wire fixing structure with convenient installation and high versatility degree and capable of prolonging service life. The technical scheme of the stay wire fixing structure is that a stay wire can be fastened on a flameout rocking arm plate via the stay wire fixing structure; the stay wire fixing structure is characterized by comprising a hanging pin, a gasket, an elastic pad, a nut, a flat pad and an cotter; the hanging pin is divided into three sections from top to bottom, including a thread section, an intermediate section and a pin roll section; an axial vertical pin hole is formed in the lower part of the pin roll section; the pin roll section passes through a through hole in the flameout rocking arm plate and is coated with the flat pad; the flat pad is locked via the cotter in the pin hole; an axial vertical fixed hole is formed in the lower part of the thread section; the stay wire passes through the fixed hole and tightly pressed by the gasket sleeving the thread section; and the gasket and the nut are fastened via the elastic pad. The stay wire fixing structure is suitable for engineering machinery industry.

Description

A kind of bracing wire fixed structure

Technical field

The utility model relates to a kind of bracing wire fixed structure.Be applicable to construction machinery industry.

Background technique

Fixing of existing domestic engine misses bracing wire wire rope generally has two kinds of forms: adopt screw directly flameout pull-cord wire rope to be fixed on to motor bracing wire and hang on pin.Bracing wire wire rope is to be wound to required size by several finer wires, in the time of fixing bracing wire, and screw front end circumgyration incision steel wire, wire rope is flattened simultaneously, in this process, part steel wire fracture, all the other steel wire gross distortions, pull after the certain number of times of wire rope whole fracture in using process; Flameout pull-cord wire rope one end pressing Y-piece, uses bearing pin to be connected with engine misses rocking arm.Due to the installation dimension difference to some extent of different motor producer, cause the various in style of bracing wire, generalization degree is lower, is unfavorable for management, and cost rises simultaneously.

Summary of the invention

The technical problems to be solved in the utility model is: for the problem of above-mentioned existence, provide a kind of bracing wire fixed structure simple in structure, easy for installation, to increase the service life, generalization degree is high.

The technological scheme that the utility model adopts is: a kind of bracing wire fixed structure, for bracing wire being fixed on to flame-out rocker plate, it is characterized in that: this structure forms by hanging pin, packing ring, bullet pad, nut, plain cushion and cotter pin, wherein hang pin and be from top to bottom divided into three sections, be followed successively by thread section, intermediate section and bearing pin section, bearing pin pars infrasegmentalis is shaped with the pin-and-hole of vertical axial, and bearing pin section has plain cushion through the through hole in described flame-out rocker plate cover, the cotter pin locking of this plain cushion in inserting in pin-and-hole; Described thread section bottom is shaped with the fixed hole of vertical axial, and described bracing wire is passed fixed hole and compressed by the packing ring being placed on thread section, and this packing ring is fixed by bullet pad and nut;

Described packing ring has step hole, the one-level hole aperture b of below, and hole depth d, the second hole aperture a of top, establishes fillet between described one-level hole hole wall and packing ring lower end surface, radius R, packing ring 3 external diameter c;

The aperture f of described fixed hole, fixed hole centre distance intermediate section upper-end surface is apart from e;

Wherein $a=F_0^{+0.2}$

$b={(F+2\×D-E\×D)}_0^{+0.2}$

c-b=4D

d=1.2D

$e={(d/2+0.5)}_0^{+0.1}$

$f=d_{+0.1}^{+0.2}$

R=0.5～0.6mm

In above-mentioned formula, D is bracing wire diameter, and E is bracing wire bending deformation coefficient, and F is thread section diameter.

It is 6 × 7-SWC that described bracing wire adopts steel cord structure.

The intermediate section of described extension pin is trimming cylinder.

The beneficial effects of the utility model are:

The utility model long service life, the size of packing ring and extension pin decides according to the thickness of bracing wire wire rope and the bending ability of itself, extrusion-deformation place is all rounded down, bracing wire wire rope is only the distortion in normal bending ability, utilize its bending ability to fix, nor can rotate the steel wire fracture that cause forming it due to compressing member, greatly improve its working life; Install simply, means of fixation is the simple form that adopts packing ring to add nut just, and it is very convenient to install; Generalization degree is high, due to the change of means of fixation, and adjusting bracing wire length that can be random, the trouble of effectively avoiding each motor producer installation dimension difference to bring.

It is 6 × 7-SWC that the utility model bracing wire adopts steel cord structure, than conventional steel cord structure 1 × 19 in prior art, the utility model wire rope minimum breaking force improves, wire rope minimum breaking force is brought up to 3.38kN by original 2.39kN, improve more than 40%, the ability of the anti-fracture of wire rope is stronger, and reliability is higher; Wire rope elasticity is better, and the elongation percentage of wire rope also has and original be not more than 0.8% and be modified into 0.9%, and its elasticity is better, and reliability is higher.

Accompanying drawing explanation

Fig. 1 is exploded view of the present utility model.

Fig. 2 is the view after the utility model middle washer compresses.

Fig. 3 is the sectional view of the utility model middle washer.

Fig. 4, Fig. 5 are plan view, the side view of hanging pin in the utility model.

Fig. 6 is the schematic cross-section of bracing wire in the utility model.

Embodiment

As shown in Figure 1, the present embodiment is a kind of bracing wire fixed structure, and this structure, for bracing wire 5 being fixed on to flame-out rocker plate 6, forms by hanging pin 4, packing ring 3, bullet pad 2, nut 1, plain cushion 7 and cotter pin 8.As shown in Figure 4, Figure 5, in this example, hang pin 4 and be divided into from top to down three sections, be followed successively by thread section 401, intermediate section 403 and bearing pin section 404.Wherein bearing pin section 404 bottoms are shaped with the pin-and-hole 405 of bearing pin section vertical axial, and this bearing pin section is through the through hole in flame-out rocker plate 6 and have plain cushion 7 at bared end cover, and plain cushion 7 locks by the cotter pin 8 inserting in pin-and-hole 405.The intermediate section 403 of hanging pin 4 is trimming cylinder.The bottom of thread section 401 is shaped with vertical its axial fixed hole 402, and bracing wire 5, through this fixed hole, and is compressed with the packing ring 3 being placed on thread section 401, and this packing ring is fixing by bullet pad 2 and nut 1, and nut 1 is threaded and hangs the thread section 401 of selling 4.

As shown in Figure 3, the present embodiment middle washer 3 has step hole, the one-level hole 301 aperture b of below, and hole depth d, establishes fillet 303, radius R between one-level hole 301 hole walls and packing ring 3 lower end surfaces; The second hole 302 aperture a of top; Packing ring 3 external diameter c.Hang the fixed hole 402 aperture f on pin 4, the centre distance intermediate section upper-end surface of fixed hole 402 is apart from e.

In the present embodiment

;

; C-b ≈ 4D; D ≈ 1.2D;

;

; R=0.5～0.6mm;

In above-mentioned formula, D is bracing wire 5 diameters, and E is bracing wire 5 bending deformation coefficients (gained by experiment), and F is thread section 401 diameters of hanging pin 4.

As shown in Figure 2, after packing ring 4 compresses, bracing wire 5 will produce bending, and in order to prevent that bracing wire 5 from producing fracture at bending part, packing ring 4 has fillet 303 at bracing wire 5 bending parts.Packing ring 3 size a, b, c, d, and hang pin 4 size e, f and determine according to the bending abilities of the diameter of bracing wire 5 and bracing wire 5 itself, to guarantee that bracing wire does not exceed the bending ability of himself, and can be with to hang pin 4 firmly fixing.Bracing wire 5 fixing main by its bending, the required screw-down torque of nut 1 is very little, can not do extruding significantly to bracing wire itself, and the probability that bracing wire 5 is ruptured reduces greatly, and working life is higher.

In order to make the longer service life of bracing wire 5, the kind of the wire rope to bracing wire 5 is adjusted, in order not raise the cost, versatility is also better, selects conventional wire rope according to GB/T14451-2008, and cost is lower, steel cord structure before improvement is 1 × 19, after improving, steel cord structure is 6 × 7-SWC, and wire rope has also done overstriking bracing wire 5, and to adopt steel cord structure be 6 × 7-SWC, sees Fig. 6.

The installation steps of the present embodiment are as follows:

1, in flame-out rocker plate 6, dress is hung pin 4, and plain cushion 7 is placed on and hangs pin 4, be pressed in flame-out rocker plate 6, and fixing with cotter pin 8, hang pin 4 and install;

2, bracing wire 5 is sold to the fixed hole 402 on 4 through extension, bracing wire 5 length adjustment are to required size;

3, packing ring 3 is pressed in bracing wire 5, and loads onto bullet pad 2 and nut 1, fastening nut 1.Be trimming cylinder owing to hanging pin 4 intermediate sections 403, when assembling like this, can use easily instrument fastening nut 1.

Claims (3)

1. a bracing wire fixed structure, for bracing wire (5) is fixed on to flame-out rocker plate (6), it is characterized in that: this structure is by hanging pin (4), packing ring (3), bullet pad (2), nut (1), plain cushion (7) and cotter pin (8) composition, wherein hang pin (4) and be from top to bottom divided into three sections, be followed successively by thread section (401), intermediate section (403) and bearing pin section (404), bearing pin pars infrasegmentalis is shaped with the pin-and-hole (405) of vertical axial, bearing pin section has plain cushion (7) through the through hole in described flame-out rocker plate (6) cover, cotter pin (8) locking of this plain cushion in inserting in pin-and-hole, described thread section bottom is shaped with the fixed hole (402) of vertical axial, and described bracing wire (5) compresses through fixed hole and by the packing ring (3) being placed on thread section, and this packing ring is fixing by bullet pad (2) and nut (1),

Described packing ring (3) has step hole, one-level hole (301) the aperture b of below, hole depth d, second hole (302) the aperture a of top, between described one-level hole (301) hole wall and packing ring (3) lower end surface, establish fillet (303), radius R, packing ring (3) external diameter c;

The aperture f of described fixed hole (402), fixed hole centre distance intermediate section upper-end surface is apart from e;

Wherein $a=F_0^{+0.2}$

$b={(F+2\×D-E\×D)}_0^{+0.2}$

c-b=4D

d=1.2D

$e={(d/2+0.5)}_0^{+0.1}$

$f=d_{+0.1}^{+0.2}$

R=0.5～0.6mm

In above-mentioned formula, D is bracing wire (5) diameter, and E is bracing wire (5) bending deformation coefficient, and F is thread section (401) diameter.

2. bracing wire fixed structure according to claim 1, is characterized in that: it is 6 × 7-SWC that described bracing wire (5) adopts steel cord structure.

3. bracing wire fixed structure according to claim 1, is characterized in that: the intermediate section (403) of described extension pin (4) is trimming cylinder.

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