CN201108840Y

CN201108840Y - Impact breaker slab-hammer reinforced gripping mechanism

Info

Publication number: CN201108840Y
Application number: CNU2007200425717U
Authority: CN
Inventors: 詹旺明; 王逵; 刘勇
Original assignee: CBMI SINOMA INTERNATIONAL ENGINEERING Co Ltd
Current assignee: CBMI SINOMA INTERNATIONAL ENGINEERING Co Ltd
Priority date: 2007-11-14
Filing date: 2007-11-14
Publication date: 2008-09-03
Anticipated expiration: 2017-11-14

Abstract

A flat hammer mandatory fastening mechanism of an impact crusher is provided. A rotor is provided with a plurality of rectangular flat hammers rotating synchronously with the rotor. The structure is characterized in that the rotor is provided with a plurality of U-shaped grooves corresponding to the flat hammers on number and running through the rotor along the axial direction. The U-shaped grooves are used to place the flat hammers. One side of the U-shaped groove is a vertical plane while the other side is an inclined plane, and a wedge space is formed between the two planes. A wedge block is arranged in the wedge space and the two inclined planes at the lower end are respectively jointed with two locking blocks the upper ends of which are provided with opposite inclined planes. The two locking blocks are separated and a blot is arranged. By tightening the bolt, the two locking blocks get close and the wedge block is forced to move to the narrow end along the wedge space. Consequently, the flat hammer is fastened. The structure has the advantage that before the rotor moves, the active and mandatory fastening of the flat hammer is finished.

Description

The impact breaker bar is forced clamp mechanism

Technical field

The utility model relates to the secure fixation of the impact breaker bar that is used for crushed stone lime stone, sandstone etc., and particularly a kind of impact breaker bar is forced clamp mechanism.

Background technology

The bar fixed form of existing impact breaker has modes such as bolt is directly fixing, bar band positive stop lug boss, the centrifugal self-locking of wedge, all has different defectives.Bolt is directly fixing, need stay bolt hole on bar, has slackened the intensity of bar, and material hits on bolt, has influenced anti-loosing effect, and is bolt strained in addition very big, the easily destroyed and influence dismounting of screw thread; Bar band positive stop lug boss mode, be to leave the elongated boss that spacing usefulness is installed in the lower end of bar, in the bar mounting groove of rotor block, be provided with spacing pallet, spacing Ka Tai, its lower end boss of bar back in place hooks spacing pallet, insert space between spacing Ka Tai and the bar with briquetting again, bar is fixed.Because bar can not be changed sides up and down, this fixed form greatly reduces the utilization rate of material, and applying is not very tight between bar and the associated part; The centrifugal self-locking mode of wedge is to utilize centrifugal force that wedge is moved from the wedge structure small end that trend has the self-locking angle, and then compresses bar.Its structure is simpler, but when being subjected to impact on judder or the diametric(al), the clamping degree of bar will be slackened and then produce and rock, if the toughness of bar is relatively poor, the danger that embrittlement takes place just be arranged.

Summary of the invention

The utility model provides a kind of impact breaker bar to force clamp mechanism for overcoming the deficiency of prior art, can carry out quick, clamping reliably.Its technical scheme is as follows: a kind of impact breaker bar is forced clamp mechanism, rotor block is provided with a plurality of cuboid bars that rotate synchronously with rotor block, it is characterized in that on the rotor block being provided with corresponding with bar quantity, run through the axial U type groove of rotor block, U type groove is settled bar, U type groove one side is a vertical plane, the another side is set to the inclined-plane, constitutes wedge shape space between them, forms one from contracting angle.One wedge block is set in this wedge shape space, and its two inclined-planes, lower end are provided with the latch segment applying of reverse slope mutually with two upper ends respectively, have between two latch segments at interval and by screw to socket, and the latch segment lower end leans against on the U type groove bottom.Be being slidingly matched of axial notch and boss between U type groove vertical plane and the relative bar face, and cooperating two ends to be provided with bar axial limiting sideboard.U type fluted shaft is provided with the wedge block postive stop baffle laterally.

Advantage of the present utility model and effect: before rotor operation, promptly finish, enforceable clamping locking initiatively, make bar equal reliable grip before and after the rotor running, get rid of influence of random disturbance and influence to bar.

Description of drawings

Fig. 1 is a schematic diagram behind the utility model clamping bar;

Fig. 2 is the C-C profile of Fig. 1;

Fig. 3 is the stereogram of rotor block after dismounting bar and the clamp mechanism;

Fig. 4 be Fig. 1 stereogram.

The specific embodiment

Referring to Fig. 1-4, the U type groove a that runs through full duration on the rotor block 8 is for installing bar and clamp mechanism, and the installation of U type groove a straight flange is close at bar 5 back sides, and boss on the bar 5 and v-depression b cooperatively interact.Bar 5 positive hypotenuses with U type groove a form wedge shape space, the steel plate that is welded on the rotor block forms semiclosed chute c with it jointly, wedge block 1 is promptly installed and is contained in this place and compresses bar 5 fronts, and wedge block 1 is limited by chute c side along the armature spindle direction, can only be along chute c installation or removal.

Also cooperate by respective ramp between the lower end of wedge block 1 and latch segment 2 upper ends, latch segment 2 lower ends are pressed on the rotor block 8.Change the distance between two latch segments 2, can change the position of wedge block 1 in chute c.Close mutually by high-strength screw 3, two latch segments 2 of pretension, wedge block 2 is forced to move to the narrow end of wedge shape space along chute c, thereby bar 5 is forced to clamp.At work, invariant position is guaranteed in wedge block 1 piece 2 locking that is locked all the time.Axial baffle 6 blocks the axial boss on the bar back side, restriction bar 5 axial motions.

Claims

1, a kind of impact breaker bar is forced clamp mechanism, rotor block is provided with a plurality of cuboid bars that rotate synchronously with rotor block, it is characterized in that being provided with on the rotor block corresponding with bar quantity, run through the axial U type groove of rotor block, U type groove is settled bar, U type groove one side is a vertical plane, the another side is set to the inclined-plane, constitute wedge shape space between them, one wedge block is set in this wedge shape space, its two inclined-planes, lower end are provided with the latch segment applying of reverse slope mutually with two upper ends respectively, have between two latch segments at interval and by screw to socket, the latch segment lower end leans against on the U type groove bottom.

2, impact breaker bar according to claim 1 is forced clamp mechanism, it is characterized in that between U type groove vertical plane and the relative bar face being being slidingly matched of axial notch and boss, and is provided with bar axial limiting sideboard at the cooperation two ends.

3, impact breaker bar according to claim 1 and 2 is forced clamp mechanism, it is characterized in that U type fluted shaft is provided with the wedge block postive stop baffle laterally.