CN103706438A - Special bucket tooth of high-frequency crushing hammer - Google Patents
Special bucket tooth of high-frequency crushing hammer Download PDFInfo
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- CN103706438A CN103706438A CN201310707255.7A CN201310707255A CN103706438A CN 103706438 A CN103706438 A CN 103706438A CN 201310707255 A CN201310707255 A CN 201310707255A CN 103706438 A CN103706438 A CN 103706438A
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Abstract
The invention discloses a special bucket tooth of a high-frequency crushing hammer. The special bucket tooth mainly comprises a tooth sleeve, a tooth root and a gap adjusting mechanism, wherein the tooth sleeve is symmetric left and right, the front end of the tooth sleeve is in a wedge shape, the rear part of the tooth sleeve is arranged on the tooth root in a sleeved manner and fixed on the tooth root through the gap adjusting mechanism; the cross section of the front part of the tooth sleeve is in a rectangular shape, an inner hole in the rear part of the tooth sleeve is a symmetric wedged hole with a rectangular cross section; the tooth root is in bilateral symmetry and in a wedge shape and is provided with a wedged through hole from the front and rear surfaces to the middle part; the gap adjusting mechanism comprises an upper wedged pin, a screw and a lower wedged pin, the upper wedged pin and the lower wedged pin are longitudinally symmetrically arranged in the wedged through hole of the tooth root, an oblique plane of each of the upper wedged pin and the lower wedged pin is attached to an oblique plane of the through hole of the tooth root, and the screw penetrates through the holes of the upper wedged pin and the lower wedged pin and is screwed through threads. When a gap is produced by the abrasion between the inner hole of the tooth sleeve and the matched surface of the tooth root, the gap can be conveniently eliminated through the relative movement of the tooth sleeve and the tooth root, i.e. the tooth sleeve cannot swing relative to the tooth root, so that the accuracy for selecting an acting point of the crushing hammer can be improved.
Description
Technical field
The present invention relates to a kind of special-purpose bucket tooth of high-frequency breaking hammer of invention structure.
Background technology
High-frequency breaking hammer is to provide hydraulic energy to drive hydraulic motor by host hydraulic system, by gear drive, drive a pair of eccentric wheel in vibrating bin to rotate, form thus an exciting force changing by sinusoidal rule, make destroyer produce dither, and by bucket tooth, operation thing is carried out a kind of engineering machinery accessory of swing crushing.
High-frequency breaking hammer can substitute hydraulic breaking hammer work on a large scale, be applicable to the work-yards such as all kinds of mines, stone pit, constructing tunnel, basis fragmentation, building demolition and seabeach, irrigation canals and ditches, river course, wetland, especially for Polodyakonov coefficient lower than each rocks of 7 as sandstone, decomposed rock, limestone and karst landform rock, broken work efficiency is remarkable especially.
High-frequency breaking hammer is partly comprised of vibrating bin, upper lower link, frame, bucket tooth etc.When work, its bucket tooth directly contacts and transmits with the thing that is broken the dither producing from vibrating bin, and realize the thing that is broken is carried out to broken function, be the attrition component in high-frequency breaking hammer.High-frequency breaking hammer in the market, the existing excavator bucket teeth of the many employings of its bucket tooth.Because the major function of high-frequency breaking hammer is broken, and excavator bucket teeth major function is to excavate, therefore, when excavator bucket teeth is used on high-frequency breaking hammer, structurally there is the deficiency of the following aspects: 1, excavator bucket teeth is for ease of excavating, before its tooth cover, cross section size on thickness direction is less, thereby when crushing operation, it easily fractures.2, because the front end cross section of the excavator bucket teeth tooth cover size on thickness direction is less; thereby when tooth cover width is identical; it is less that the tooth of equal length overlaps the volume capacity of its antifriction metal (AFM); cause rapid wear; in work, shut down the frequency increase of changing bucket tooth, affected the operating efficiency of crushing operation.3, tooth cover endoporus and the contacting between face of matching on tooth root, though be also wedge shape or conical contact, but tooth cover is fixedly by a pin with the link of tooth root, in work, after the face that matches on tooth cover endoporus and tooth root weares and teares, match and will occur gap between face, this gap cannot be eliminated, cause tooth to overlap relative tooth root and occur situation about relatively swinging, this is unfavorable for choosing of quartering hammer impetus very much.
Summary of the invention
Problem to be solved by this invention is to provide a kind of special-purpose bucket tooth of high-frequency breaking hammer of invention structure, it can, by overlapping because wearing and tearing make tooth the gap that matches and produce between face on endoporus and tooth root in gap adjusting mechanism elimination work, improve the accuracy that quartering hammer impetus is chosen.Meanwhile, the present invention has strengthened tooth and has overlapped anterior thickness, has changed the situation of existing bucket tooth frangibility, quick abrasion, has extended the service life of bucket tooth, has reduced the time of shutting down because changing bucket tooth, has improved operating efficiency, has saved job costs.
The special-purpose bucket tooth of a kind of high-frequency breaking hammer of the present invention, it is mainly comprised of tooth cover, tooth root, gap adjusting mechanism; Tooth cover is symmetrical, and its front end is wedge shape, and rear sleeve is contained on tooth root, and is fixed on tooth root by gap adjusting mechanism.
Wherein, the front cross section of tooth cover is rectangle, and compares with the excavator bucket teeth of same widths, and its size on thickness direction is larger, and the endoporus at tooth cover rear portion is symmetrical rectangle cross section wedged hole, in endoporus two sides, is provided with square opening; The symmetrical wedge shape that is of tooth root, is provided with wedge shape through hole from two sides, front and back toward centre, its face near tooth root front portion is inclined-plane, and tooth root is contained in the rectangle cross section wedged hole of tooth cover.
Clearance adjustment mechanism comprises wedge pin, screw, lower wedge pin, upper wedge pin and lower wedge pin are arranged in the wedge shape through hole of tooth root up and down symmetrically, both inclined-planes fit with the inclined-plane in tooth root hole respectively, and screw passes from the hole of upper and lower wedge pin, and by screw thread tight.
Like this, on tooth cover endoporus and tooth root, match while there is gap because wearing and tearing between face, by tooth overlap and tooth root between relatively move, can eliminate easily gap: by tightening screw, drive upper and lower wedge pin to move to centre, realize relatively moving between tooth cover and tooth root, thereby play, eliminate the gap matching between face on tooth cover endoporus and tooth root, both are closely cooperated, be that tooth overlaps relative tooth root and can relatively not swing, improve the accuracy that quartering hammer impetus is chosen, meanwhile, also improve the service life of bucket tooth, reduced production cost.
Accompanying drawing explanation
Fig. 1 is the top view of general structure of the present invention;
Fig. 2 is the cutaway view along A-A line in Fig. 1;
Fig. 3 is the top view of tooth cover;
Fig. 4 is the cutaway view along B-B line in Fig. 3;
Fig. 5 is the cutaway view along C-C line in Fig. 4;
Fig. 6 is the cutaway view along D-D line in Fig. 5;
Fig. 7 is the top view of tooth root;
Fig. 8 is the cutaway view along E-E line in Fig. 7;
Fig. 9 is the left view of upper wedge pin;
Figure 10 is the upward view of Fig. 9;
Figure 11 is the cutaway view along F-F line in Figure 10;
Figure 12 is the left view of lower wedge pin;
Figure 13 is the top view of Figure 12;
Figure 14 is the cutaway view along G-G line in Figure 13.
The specific embodiment
Below in conjunction with accompanying drawing, this practicality invention is further described in detail:
From Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, the special-purpose bucket tooth of a kind of high-frequency breaking hammer of the present invention, is mainly comprised of tooth cover 1, tooth root 2, gap adjusting mechanism; It is 1 symmetrical that tooth overlaps, and its front end is wedge shape, and rear sleeve is contained on tooth root 2, and is fixed on tooth root 2 by gap adjusting mechanism.
Wherein, the front cross section of tooth cover 1 is rectangle, and compares with the excavator bucket teeth of same widths, and its size on thickness direction is larger, and the endoporus that tooth overlaps 1 rear portion is symmetrical rectangle cross section wedged hole, in endoporus two sides, is provided with square opening; The symmetrical wedge shape that is of tooth root 2, is provided with wedge shape through hole from two sides, front and back toward centre, its face near tooth root 2 front portions is inclined-plane, and tooth root 2 is contained in the rectangle cross section wedged hole of tooth cover 1.
The front end of tooth cover 1 of the present invention is wedge shape, is conducive to like this increase the impulsive force in impetus unit are, and is conducive to the crack that bucket tooth enters rock, realizes smoothly the fragmentation to rock.As can be seen from Figure 6, the front portion of tooth cover 1 of the present invention is compared with the excavator bucket teeth of same widths, and its size H on thickness direction is larger, its cross-sectional area is larger, therefore its active force that can bear is also larger, and the bending strength of tooth cover 1 of the present invention increases greatly, thereby frangibility not; Simultaneously, when the width L of tooth cover 1 is identical, due to it, on thickness direction, to compare size H larger with the excavator bucket teeth of same widths, its cross-sectional area is larger, the tooth cover of equal length, its amount of metal that can wear and tear is just many, and it is just long that tooth overlaps the anti abrasive time, thereby reduced the speed of wearing and tearing, extended the service time of single bucket tooth.
Clearance adjustment mechanism comprises wedge pin 3, screw 4, lower wedge pin 5, upper wedge pin 3 and lower wedge pin 5 are arranged in the wedge shape through hole of tooth root 2 up and down symmetrically, both inclined-planes fit with the inclined-plane in tooth root 2 holes respectively, screw 4 passes from the hole of upper and lower wedge pin 3,5, and by screw thread tight.
In Tooth structure of the present invention, increased gap adjusting mechanism, when overlapping, tooth on 1 endoporus and tooth root 2, matches while there is gap because of wearing and tearing between face, by tightening screw 4, drive upper and lower wedge pin 3 and 5 to move to centre, realize relatively moving of 2, tooth cover 1 and tooth root, thereby play elimination tooth, overlap the gap matching between face on 1 endoporus and tooth root 2, both are closely cooperated, be that tooth overlaps relative tooth root and can relatively not swing, improve the accuracy that break-up point is chosen.Wherein, the plane that upper wedge pin 3 is relative with inclined-plane with lower wedge pin 5 all fits with the square opening face of tooth cover 1.
From Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, as a modification of the present invention mode, the hole of upper wedge pin 3 is step through hole, and macropore is screwed hole; The hole of lower wedge pin 5 is step through hole, and large and small hole is screwed hole.Because the macropore of upper and lower wedge pin 3 and 5 stepped holes is screwed hole, when needs are changed tooth cover, the screw 4 of only need first dismantling, then screws in this screwed hole by the thread head of pin removal, just can take out easily upper and lower wedge pin 3 and 5.
During the special-purpose bucket tooth of assembling high-frequency breaking hammer, first tooth cover 1 is installed on tooth root 2, then respectively by upper, lower wedge pin 3 and 5 slots that overlap 1 two side faces by tooth pack in the wedge shape slot of two side faces of tooth root 2, then the end of thread of screw 4 is passed to the through hole on upper wedge pin 3, screw and turn screw 4 with the screw on lower wedge pin 5, in this process, by turning screw 4, in drive, lower wedge pin 3 and 5 moves to centre, on, lower wedge pin 3 and 5 drives tooth cover 1 and tooth root 2 to relatively move, tooth overlaps the gap matching between face on 1 endoporus and tooth root 2 and reduces gradually, until tighten screw 4, making wedge pin 3 and lower wedge pin 5 inclined-plane above and tooth overlap 2 inclined-plane fits, plane below all fits with the square opening face of tooth cover 1, at this moment, tooth cover 1 is fixed on tooth root 2 tightly.In work, when tooth overlaps, on 1 endoporus and tooth root 2, match while there is gap because of wearing and tearing between face, as long as again tighten screw 4, just can eliminate gap therebetween.Change tooth and overlap 2 o'clock, the screw 4 of only need first dismantling, then screws in the thread head of pin removal respectively the large end screw of upper and lower wedge pin 3 and 5, utilizes pin removal can take out easily upper and lower wedge pin 3 and 5, finally just can take off like a cork tooth and overlap 1.
The special-purpose bucket tooth of high-frequency breaking hammer of the present invention has overcome the deficiency existing on existing Tooth structure, has improved operating efficiency, has reduced job costs.
Claims (5)
1. the special-purpose bucket tooth of high-frequency breaking hammer, is characterized in that: it is mainly comprised of tooth cover (1), tooth root (2), gap adjusting mechanism; Tooth cover (1) is symmetrical, and its front end is wedge shape, and it is upper that rear sleeve is contained in tooth root (2), and be fixed on tooth root (2) by gap adjusting mechanism.
2. the special-purpose bucket tooth of high-frequency breaking hammer according to claim 1, it is characterized in that: the front cross section of tooth cover (1) is rectangle, and compare with the excavator bucket teeth of same widths, its size on thickness direction is larger, the endoporus at tooth cover (1) rear portion is symmetrical rectangle cross section wedged hole, in endoporus two sides, is provided with square opening; The symmetrical wedge shape that is of tooth root (2), is provided with wedge shape through hole from two sides, front and back toward centre, it is inclined-plane near the anterior face of tooth root (2), and tooth root (2) is contained in the rectangle cross section wedged hole of tooth cover (1).
3. the special-purpose bucket tooth of high-frequency breaking hammer according to claim 1, it is characterized in that: clearance adjustment mechanism comprises wedge pin (3), screw (4), lower wedge pin (5), upper wedge pin (3) and lower wedge pin (5) are arranged in the wedge shape through hole of tooth root (2) up and down symmetrically, both is inclined-plane above, fit with the inclined-plane in tooth root (2) hole respectively, screw (4) passes from the hole of upper and lower wedge pin (3,5), and by screw thread tight.
4. the special-purpose bucket tooth of high-frequency breaking hammer according to claim 3, is characterized in that: after upper wedge pin (3) and lower wedge pin (5), be plane, all fit with the square opening face of tooth cover (1).
5. according to the special-purpose bucket tooth of the high-frequency breaking hammer described in claim 3 or 4, it is characterized in that: the hole of upper wedge pin (3) is step through hole, and macropore is screwed hole; The hole of lower wedge pin (5) is step through hole, and large and small hole is screwed hole.
Priority Applications (1)
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CN201310707255.7A CN103706438A (en) | 2013-12-20 | 2013-12-20 | Special bucket tooth of high-frequency crushing hammer |
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CN201310707255.7A CN103706438A (en) | 2013-12-20 | 2013-12-20 | Special bucket tooth of high-frequency crushing hammer |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3831297A (en) * | 1973-06-27 | 1974-08-27 | Caterpillar Tractor Co | Replaceable cutting edge assembly with wedge means |
GB1476822A (en) * | 1974-08-05 | 1977-06-16 | Caterpillar Tractor Co | Earthworking tooth assemblies |
US5564206A (en) * | 1995-11-13 | 1996-10-15 | Gh Hensley Industries, Inc. | Self-adjusting tooth/adapter connection system for material displacement apparatus |
US5718070A (en) * | 1995-11-13 | 1998-02-17 | Gh Hensley Industries, Inc. | Self-adjusting tooth/adapter connection system for material displacement apparatus |
US6108950A (en) * | 1999-03-08 | 2000-08-29 | Gh Hensley Industries, Inc. | Self-adjusting tooth/adapter connection system for material displacement apparatus |
CN201605621U (en) * | 2009-12-21 | 2010-10-13 | 广西玉柴重工有限公司 | Looseness-proof structure used for bucket teeth |
CN103243773A (en) * | 2013-05-10 | 2013-08-14 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth |
CN203750603U (en) * | 2013-12-20 | 2014-08-06 | 安徽惊天液压智控股份有限公司 | Special bucket tooth for high-frequency breaking hammer |
-
2013
- 2013-12-20 CN CN201310707255.7A patent/CN103706438A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3831297A (en) * | 1973-06-27 | 1974-08-27 | Caterpillar Tractor Co | Replaceable cutting edge assembly with wedge means |
GB1476822A (en) * | 1974-08-05 | 1977-06-16 | Caterpillar Tractor Co | Earthworking tooth assemblies |
US5564206A (en) * | 1995-11-13 | 1996-10-15 | Gh Hensley Industries, Inc. | Self-adjusting tooth/adapter connection system for material displacement apparatus |
US5718070A (en) * | 1995-11-13 | 1998-02-17 | Gh Hensley Industries, Inc. | Self-adjusting tooth/adapter connection system for material displacement apparatus |
US6108950A (en) * | 1999-03-08 | 2000-08-29 | Gh Hensley Industries, Inc. | Self-adjusting tooth/adapter connection system for material displacement apparatus |
CN201605621U (en) * | 2009-12-21 | 2010-10-13 | 广西玉柴重工有限公司 | Looseness-proof structure used for bucket teeth |
CN103243773A (en) * | 2013-05-10 | 2013-08-14 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth |
CN203750603U (en) * | 2013-12-20 | 2014-08-06 | 安徽惊天液压智控股份有限公司 | Special bucket tooth for high-frequency breaking hammer |
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Application publication date: 20140409 |