CN203382106U - Improved clamping block for spiral spring of vibrating conveyer - Google Patents

Abstract

An improved clamping block for a spiral spring of a vibrating conveyer comprises a pressing plate (1), a straight side (2), an insert (3), a middle hole (4) and a bulged positioning edge (5), wherein the straight side (2) is formed in a local edge of the pressing plate (1) in the plane direction, the insert (3) is arranged on the lower side of the pressing plate (1), edges of the pressing plate are bulged out of the insert (3), the bulged positioning edge (5) is formed at the side, where the straight side (2) is located, of the insert (3), and the coaxial middle hole (4) is formed in the pressing plate (1) and the insert (3). The clamping block adopting the insert provided with the bulged positioning edge is matched with a structure of the tail end of the spring, so that the unique feasible assembling manner is formed by means of the interlocking function, a good dynamic stress state and contact between metals are formed in the bolted joint position, and the vibration amplitude borne by the spring can be increased by 30% before the spring fails when the clamping block is used.

Description

Improved jigging conveyer coil spring clamp

Technical field

The utility model relates to the vibratory equipment medi-spring and is fixedly connected with fastener technology, especially improved jigging conveyer coil spring clamp.

Background technology

Jigging conveyer is usingd coil spring as important structure member, and coil spring is the important component part of machine vibration device, so the device of fixing spring is also extremely important.Spring usually use bolt and relevant clamp fastening.Spring failure is one of modal fault of vibratory equipment.

It is well-known technology that jigging conveyer utilizes the principle of natural frequency, can trace back to the 1950's.Typical machine is comprised of a delivery chute, a base and a spring system, and this spring system couples together base and delivery chute and actuating device and delivery chute, and disturbance force is delivered to delivery chute.

When the machine normal operation, coil spring bears high tersional stress and can calculate according to helical spring Wa Er equation, yet, for the ease of with fastener and clamp assembly by spring fitting to machine, need often to adjust the diameter of spring main body, to obtain small diameter, be to adopt symmetrical rounded washers and bolt or rivet to be fixed spring in the past.Yet orthodox method is deposited deficiency and also given prominence to, common flat gasket spring clamp piece mounting means, due to without any positioning function, can cause spring displacement or dislocation, and then cause transportation problem and/or construction defect.Specific descriptions comprise: while using the spring clamp piece of rounded washers type, clamp inside face and spring wire contact surface are that evolvent type divides cloth cover, and this will form inhomogeneous distribution of stress in having born heavily stressed spring zone.If clamp does not carry out correct orientation with respect to the spring spindle axis, it slides on spring wire possibly, rather than concora crush is in the spring tail end, because connecting, the bolt that is applied to live load all definitely require metal to contact with the metal joint face, so in this case, because lack metal, produce the bolt Joint failure with contacting of metal, the free turn stress of spring constantly caudad transmits, destroy the state that defines of the free circle of spring and tail end state of stress, finally cause fastening inefficacy.

The present situation of coil spring manufacture is: in rational consumption scope, wire shape is limited.For example, the coil spring steel wire can not bend to the minor diameter shape with steel wire self equal diameters.This just causes all helical spring diametric hole all large than spring being fastened to structural bolt hole.This diameter difference, the abbreviation footpath is poor, can cause spring deviations and fuzzy.

The utility model content

The purpose of this utility model is to provide improved jigging conveyer coil spring clamp, has directive texture to keep fixing helical spring bolt in effective tightening state.

The purpose of this utility model realizes by following technical measures: pressing plate in-plane local edge is straight flange, the pressing plate downside has inserts, platen edge protrudes from inserts, and inserts has the location lug, nib in straight flange one side, and pressing plate and inserts have coaxial mesopore.

Especially, pressing plate is have local circular arc excision discoideus, and inserts is tear-drop shape.

Especially, the inserts horizontal section is ellipticity, and an one longitudinal end is the location lug, nib.

Especially, the height of inserts is spring tail end 6 axial heights.

Especially, pressing plate is that 3-5 limit shape is tabular.

Especially, the location lug, nib is the riser shape.

The beneficial effects of the utility model are: the clamp that has the inserts of location lug, nib based on employing, the version of it and spring tail end is complementary, its interlocking function forms unique feasible assembling mode, and form contacting of good dynamic stress state and metal and metal at the bolted joint place, can be before spring failure after use, the vibration amplitude that spring is born increases by 30 percent.

The accompanying drawing explanation

The structural representation that Fig. 1 is embodiment 1 in the utility model

The structural representation that Fig. 2 is embodiment 2 in the utility model

Fig. 3 is coil spring tail end structural representation

Fig. 4 be in the utility model embodiment 1 install and use structural representation

Reference numeral comprises: pressing plate 1, straight flange 2, inserts 3, mesopore 4, location lug, nib 5, spring tail end 6, rear circle mouth 7, bolt 8, supporting member 9.

The specific embodiment

The utility model carries out Optimal Structure Designing and is, irregularly shaped according to coil spring rear circle mouth 7, realize relative positioning to embed rigid construction, and and then keep coil spring rear and supporting member 9 and bolt 8 fastening structures to keep stable, stop the free circle of spring to vibrate and transmit to the spring rear.

Realize that device of the present utility model comprises: pressing plate 1, straight flange 2, inserts 3, mesopore 4 and location lug, nib 5.

Pressing plate 1 in-plane local edge is straight flange 2, and pressing plate 1 downside has inserts 3, and pressing plate 1 edge protrudes from inserts 3, and inserts 3 straight flange 2 one sides have the location lug, nib 5, pressing plate 1 and inserts 3 have coaxial mesopore 4.

The utility model, as the locating shim function, has solved the poor problem in spring footpath, and has defined the spring state of stress.Through the real example test that the spring that all kinds clamps have been installed is carried out, show, the vibration amplitude that design of the present utility model can make spring bear before spring failure increases by 30 percent.

Below in conjunction with drawings and Examples, further illustrate.

Embodiment 1: as shown in Figure 1, pressing plate 1 is for having the discoideus of local circular arc excision.

In aforementioned, inserts 3 horizontal sections are ellipticity, and an one longitudinal end is location lug, nib 5.Be that inserts 3 is tear-drop shape.

In aforementioned, the height of inserts 3 is spring tail end 6 axial heights; Certainly, during installation, inserts 3 bottom surfaces are adjacent to supporting member 9 fully, simultaneously, helical spring rear circle mouth 7 space and inserts 3 profiles combine closely as far as possible, be preferably to select.

In the utility model, as shown in Figure 3, based on the rigidity restriction of spring wire own, the section part axis of spring tail end 6 is straight line, the spring shaft that makes the rear freedom of entry circle of spring tail end 6 coiling form certainly will be to rear circle mouth 7 irregularly shaped that a distal process goes out, obviously, this outstanding position is positioned at the crossover location inboards that freedom of entry circle section forms after the section part of spring tail end 6 and 6 coilings of spring tail end, and the utility model need to be for arranging the space of location lug, nib 5 just in this position.

The utility model embodiment is when work, as shown in Figure 4, with spring tail end 6, be fitted on supporting member 9, the geometric figure of helical spring rear circle mouth 7 and inserts 3 profiles adapt, and location lug, nib 5 snaps in its sharp parts with unique angle, simultaneously, the relatively outstanding edge of pressing plate 1 is pressed on the steel wire of spring tail end 6, straight flange 2 is pressed in section part and the rear freedom of entry circle leading portion part of spring tail end 6 coiling of spring tail end 6 just, aim at corresponding fixed orifice on supporting member 9 with mesopore 4, then with bolt 8, run through mesopore 4 fastening.

In the utility model embodiment, straight flange 2 will position in vertical direction with the spring wire axle.Can form so a fixing strained condition, and form spring stiffness requisite certain " the free number of turn " on spring.On the spring clamp piece, lachrymal inserts 3 can play directional tagging.This means that the spring clamp piece only has a kind of mounting means, thereby avoid operator's error and make bolt 8 joint metals remain and contact with metal.Tear-drop shape on clamp is aimed at the spring tail end 6 on machine.Clamp only has a kind of mounting means, and the mesopore 4 of clamp will aim at the hole of supporting member 9, under this condition, regardless of workman's technology, can guarantee that the spring alignment installs.

The characteristics of spring clamp piece geometric configuration are " tear drop shape " designs with positioning function, and the version of it and spring tail end 6 is complementary, and has solved a lot of common spring problems.Its interlocking function forms unique feasible assembling mode, and forms contacting of good dynamic stress state and metal and metal at the bolted joint place.All these functions all have good value benefit and are enough to offset a small amount of part increases the cost brought.

Embodiment 2: as shown in Figure 2, pressing plate 1 is that 3-5 limit shape is tabular.Straight flange 2 is an one side.

In aforementioned, location lug, nib 5 is the riser shape.

The application of the utility model embodiment, make on machine mounting spring rapider, reliability is high, quality control check is faster, location more easily and the required training of operator still less, and Rig up error causes, do over again still less, because the stress integral body on spring is lower, spring still less lost efficacy, and the spring stiffness in practice is more easily predicted.

The utility model not only is confined to the contained implementation of the contained embodiment of specification sheets, simultaneously, also not only be applied among vibration conveying equipment, any needs relate to coil spring to be installed among fastening situation, all can technical measures of the present utility model realize fastening purpose.

Claims (6)

1. improved jigging conveyer coil spring clamp, comprise pressing plate (1), straight flange (2), inserts (3), mesopore (4) and location lug, nib (5), it is characterized in that: pressing plate (1) in-plane local edge is straight flange (2), pressing plate (1) downside has inserts (3), pressing plate (1) edge protrudes from inserts (3), and inserts (3) has location lug, nib (5) in straight flange (2) one sides, pressing plate (1) and inserts (3) have coaxial mesopore (4).

2. improved jigging conveyer coil spring clamp as claimed in claim 1, is characterized in that, pressing plate (1) is for having the discoideus of local circular arc excision, and inserts (3) is tear-drop shape.

3. improved jigging conveyer coil spring clamp as claimed in claim 1, is characterized in that, inserts (3) horizontal section is ellipticity, and an one longitudinal end is location lug, nib (5).

4. improved jigging conveyer coil spring clamp as claimed in claim 1, is characterized in that, the height of inserts (3) is spring tail end (6) axial height.

5. improved jigging conveyer coil spring clamp as claimed in claim 1, is characterized in that, pressing plate (1) is that 3-5 limit shape is tabular.

6. improved jigging conveyer coil spring clamp as claimed in claim 1, is characterized in that, location lug, nib (5) is the riser shape.

Images