CN103912034A - Cylinder bushing replacing method and cylinder structure of quartering hammer of excavator - Google Patents
Cylinder bushing replacing method and cylinder structure of quartering hammer of excavator Download PDFInfo
- Publication number
- CN103912034A CN103912034A CN201310506011.2A CN201310506011A CN103912034A CN 103912034 A CN103912034 A CN 103912034A CN 201310506011 A CN201310506011 A CN 201310506011A CN 103912034 A CN103912034 A CN 103912034A
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- inner sleeve
- installing hole
- cylinder body
- bushing
- digging machine
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Abstract
The invention discloses a cylinder bushing replacing method and a cylinder structure of the quartering hammer of an excavator. The method comprises prefabricating at least two through slots in the bushing positioning ring boss in the bushing mounting hole of the cylinder of the quartering hammer of an existing excavator; when replacing a bushing, penetrating the hole of the bushing with the drawbar of a hydraulic drawing device via the mounting hole, putting a pin roll into the bushing mounting hole through a ventilating hole, inserting the pin roll into the pin roll hole of the drawbar, then moving the draw bar to abut both ends of the pin roll against the bushing through the through slot in the bushing positioning ring boss, then through the hydraulic drawing device, drawing the pin roll through the drawbar to draw the bushing out of the mounting hole, and lastly, pressing a new bushing into the mounting hole. The cylinder structure of quartering hammer of the excavator has the advantages of being simple in structure, easy to fabricate and convenient, labor-saving and rapid in bushing replacement, and meanwhile, being high in mounting quality, reliable in performance, long in service life and the like.
Description
Technical field
The replacing method and the housing structure that the present invention relates to a kind of digging machine disintegrating hammer cylinder body inner sleeve, belong to digging machine disintegrating hammer technical field.
Background technology
The quartering hammer of excavator is in the time of work, can be subject to powerful impact load always, this impact load Main Function is on the drill rod of quartering hammer, and drill rod advocate to act on quartering hammer in put, drill rod inwall and backward step constantly and in inner sleeve in the time of work rubs, and inwall and backward step are constantly produced to impact load, therefore inwall and backward step are easy to be worn or damage, so the quartering hammer of excavator in use often need to be changed inner sleeve.At present, in the prior art, in the time changing digging machine disintegrating hammer inner sleeve, common employing is beaten or the mode of welding gun gas cutting is taken out its inner sleeve from the inner sleeve installing hole of cylinder body, but due to inner sleeve when mounted, to merge and be close on the inner sleeve location annulus boss leaning against in inner sleeve installing hole with the installing hole close-fitting of inner sleeve, therefore cannot adopt hydraulic drawing device to pull it, more cannot directly adopt the mode of beaing that it is taken out from inner sleeve installing hole, so normally first cylinder body is pulled down from the frame of quartering hammer, then after inner sleeve being cut into several by the mode of welding gun cutting, take out.The mode of existing this replacing inner sleeve not only time-consuming, effort, efficiency is low, and is easy to cylinder body to cause damage in the time of cutting, and installation quality while changing is also difficult to reach requirement.So it is very undesirable that the housing structure of existing digging machine disintegrating hammer and inner sleeve are changed ways and means, can not meet the needs of use.
Summary of the invention
The object of the invention is: provide a kind of easy to use, change laborsaving, quick and simple in structure, make and be easy to replacing method and the housing structure of digging machine disintegrating hammer cylinder body inner sleeve, to overcome the deficiencies in the prior art.
The present invention is achieved in that the replacing method of a kind of digging machine disintegrating hammer cylinder body inner sleeve of the present invention, it is characterized in that: on the annulus boss of the location of the inner sleeve in the installing hole of the cylinder body of existing digging machine disintegrating hammer, produce at least 2 grooves in advance, and air vent after producing on cylinder body, near the rear positions place of inner sleeve location annulus boss, in use be worn while needing to change when being contained in inner sleeve in installing hole like this, do not need cylinder body to dismantle from the frame of quartering hammer, only the pull bar of a hydraulic drawing device also need be passed to the hole of inner sleeve by installing hole, then a bearing pin is put in installing hole from rear air vent, and bearing pin is injected in the pin shaft hole of pull bar, then mobile pull bar, locate after groove on annulus boss is resisted against on the shoulder of inner sleeve by inner sleeve at the two ends that make bearing pin, can bearing pin be pulled out inner sleeve under the pulling of pull bar from installing hole by hydraulic drawing device, and then new inner sleeve is compressed into installing hole and be close to and lean against on the annulus boss of inner sleeve location.
The housing structure of a kind of digging machine disintegrating hammer of the present invention building according to said method is, this housing structure comprises the cylinder body of digging machine disintegrating hammer, in cylinder body, be provided with installing hole and inner sleeve location annulus boss, on the annulus boss of inner sleeve location, be provided with at least 2 grooves, and on cylinder body, be provided with air vent near the rear positions place of inner sleeve location annulus boss.
The quantity that is arranged on the groove on the annulus boss of above-mentioned inner sleeve location is even number, and is distributed in symmetrically on the annulus boss of inner sleeve location.
The groove bottom of above-mentioned groove is plane or arc surface.
The groove bottom of above-mentioned groove is plane, and this plane is less than 1～15 millimeter of the radius of trepanning in the installation of installing hole to the vertical distance of installing hole central axis.
The groove bottom of above-mentioned groove is arc surface, and this arc surface is 0～5 millimeter to the beeline of the interior trepanning inwall of installation of installing hole.
Owing to having adopted technique scheme, the present invention produces at least 2 grooves on the annulus boss of the location of the inner sleeve in the inner sleeve installing hole of the cylinder body of existing digging machine disintegrating hammer in advance, and on cylinder body, rear positions place near inner sleeve location annulus boss produces air vent, like this in the process using, in the time that needs are changed rear inner sleeve, after only need a bearing pin being put in inner sleeve installing hole from air vent and making bearing pin inject in the pin shaft hole of pull bar of hydraulic drawing device, can make bearing pin under the pulling of pull bar by hydraulic drawing device, inner sleeve is pulled out from the inner sleeve installing hole of cylinder body.So, the present invention compared with prior art, that the present invention not only has is simple in structure, make easily, change that inner sleeve is convenient, laborsaving, advantage efficiently, and in the time changing inner sleeve, owing to not needing that cylinder body is pulled down from the frame of quartering hammer, and cancelled the mode of welding gun cutting, thus can not cause any damage to cylinder body, therefore the present invention also have that installation quality is good, dependable performance, the advantage such as application life of equipment of improving.
Accompanying drawing explanation
Fig. 1 be adopt hydraulic drawing device by be arranged in cylinder body of the present invention inner sleeve pull-out time operating principle schematic diagram;
Fig. 2 is the structural representation that external bushing and neck bush are installed on cylinder body of the present invention;
Fig. 3 is inner sleeve structural representation of the present invention;
Fig. 4 is the A-A sectional structure schematic diagram of the groove bottom of the groove of Fig. 3 while being arc surface;
Fig. 5 is the A-A sectional structure schematic diagram of the groove bottom of the groove of Fig. 3 while being plane;
Fig. 6 is that quartering hammer that inner sleeve of the present invention is housed is arranged on the structural representation while use on excavator.
Description of reference numerals: 1-cylinder body, 2-installing hole, 3-inner sleeve location annulus boss, 3.1-groove, 4-air vent, 5-inner sleeve, 6-overcoat, 7-bearing pin, 8-hydraulic drawing device, 8.1-pull bar, 8.2-pin shaft hole, 9-quartering hammer, 10-excavator; When the groove bottom of L-groove is plane, this plane is to the vertical distance of bearing mounting hole central axis, the radius of R-bearing mounting hole.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is done further to say in detail.
Embodiments of the invention: the replacing method of a kind of digging machine disintegrating hammer cylinder body inner sleeve of the present invention can directly be implemented on existing digging machine disintegrating hammer, as shown in Figure 1, Figure 2 with shown in Fig. 6, when enforcement, on inner sleeve in the installing hole 2 of the cylinder body 1 of existing digging machine disintegrating hammer location annulus boss 3, produce at least 2 grooves 3.1 in advance, and on cylinder body 1, produce air vent 4 near the rear positions place of inner sleeve location annulus boss 3, in use be worn while needing to change when being contained in inner sleeve 5 in installing hole 2 like this, do not need cylinder body 1 to take out from the frame of quartering hammer 9, only need be by the pull bar of a hydraulic drawing device 8 8.1 by inner sleeve installing hole 2 and through behind the hole of inner sleeve 5, again a bearing pin 7 is put in inner sleeve installing hole 2 from rear tank filler sleeve 4, and bearing pin 7 is injected in the pin shaft hole 8.2 of pull bar 8.1, then mobile pull bar 8.1, locate after groove 3.1 on annulus boss 3 is resisted against in inner sleeve 5 by inner sleeve at the two ends that make bearing pin 7, can bearing pin 7 be pulled out inner sleeve 5 under the pulling of pull bar 8.1 from installing hole 2 by hydraulic drawing device 8, and then new inner sleeve 5 is put in installing hole 2 and be close to and lean against on the annulus boss of inner sleeve location.In the time adopting hydraulic drawing device 8 that inner sleeve 5 is pulled out, should adopt traditional mode first overcoat 6 to be taken out from the installing hole 2 of cylinder body 1.Hydraulic drawing device 8 can adopt existing common hydraulic drawing device.
The schematic diagram of the housing structure of a kind of digging machine disintegrating hammer of the present invention building according to said method is as shown in Fig. 3～5, this housing structure comprises the cylinder body 1 of existing digging machine disintegrating hammer, in cylinder body 1, be provided with installing hole 2 and inner sleeve location annulus boss 3, when making, on inner sleeve location annulus boss 3, produce at least 2 grooves 3.1, the quantity of groove 3.1 should be even number, and should be distributed in symmetrically on inner sleeve location annulus boss 3, generally produce under normal conditions 2～4 grooves 3.1, when making, the groove bottom of groove 3.1 can be made into plane or arc surface, in the time that the groove bottom of groove 3.1 is made as to plane, should make the plane of the groove bottom of groove 3.1 be less than 1～15 millimeter of the radius R (as shown in Figure 5) of the interior trepanning of installation of installing hole 2 to the vertical distance L of installing hole 2 central axis, in the time that the groove bottom of groove 3.1 is made as to arc surface, should make the arc surface of the groove bottom of groove 3.1 is 0～15 millimeter to the beeline of the interior trepanning inwall of installation of installing hole 2, preferably the arc surface of the groove bottom of groove 3.1 is made into the inwall of interior trepanning being installed with installing hole 2 on same, for in the time changing inner sleeve 5, bearing pin 7 can be placed in bearing mounting hole 2, can be on cylinder body 1, produce an air vent 4 near the rear positions place of inner sleeve location annulus boss 3, the beeline that the hole wall of air vent 4 can be located to the boss rear surface of annulus boss 3 to inner sleeve when making be controlled at the distance of 5～50 millimeters.Usually, while use, a traditional breather valve can be installed on air vent 4.
Claims (6)
1. the replacing method of a digging machine disintegrating hammer cylinder body inner sleeve, it is characterized in that: on the location annulus boss of the inner sleeve in the installing hole (2) of the cylinder body (1) of existing digging machine disintegrating hammer (3), produce at least 2 grooves (3.1) in advance, and upper at cylinder body (1), produce rear air vent (4) near the rear positions place of inner sleeve location annulus boss (3), in use be worn while needing to change when being contained in inner sleeve (5) in installing hole (2) like this, only the pull bar (8.1) of a hydraulic drawing device (8) also need be passed to the hole of inner sleeve (5) by installing hole (2), then a bearing pin (7) is put in installing hole (2) from rear air vent (4), and bearing pin (7) is injected in the pin shaft hole (8.2) of pull bar (8.1), then mobile pull bar (8.1), locate after groove (3.1) on annulus boss (3) is resisted against on the shoulder of inner sleeve (5) by inner sleeve at the two ends that make bearing pin (7), can bearing pin (7) be pulled out inner sleeve (5) under the pulling of pull bar (8.1) from installing hole (2) by hydraulic drawing device (8), and then new inner sleeve (5) is compressed into installing hole (2) and be close to that to lean against inner sleeve location annulus boss (3) upper.
2. the housing structure of a digging machine disintegrating hammer, comprise the cylinder body (1) of digging machine disintegrating hammer, in cylinder body (1), be provided with installing hole (2) and inner sleeve location annulus boss (3), it is characterized in that: on inner sleeve location annulus boss (3), be provided with at least 2 grooves (3.1), and rear positions place upper at cylinder body (1), close inner sleeve location annulus boss (3) is provided with air vent (4).
3. the housing structure of digging machine disintegrating hammer according to claim 2, is characterized in that: the quantity that is arranged on the groove (3.1) on inner sleeve location annulus boss (3) is even number, and is distributed in symmetrically on inner sleeve location annulus boss (3).
4. the housing structure of digging machine disintegrating hammer according to claim 2, is characterized in that: the groove bottom of groove (3.1) is plane or arc surface.
5. the housing structure of digging machine disintegrating hammer according to claim 4, it is characterized in that: the groove bottom of groove (3.1) is plane, and this plane is less than 1～15 millimeter of the radius (R) of trepanning in the installation of installing hole (2) to the vertical distance (L) of installing hole (2) central axis.
6. the housing structure of digging machine disintegrating hammer according to claim 4, is characterized in that: the groove bottom of groove (3.1) is arc surface, and this arc surface is 0～5 millimeter to the beeline of the interior trepanning inwall of installation of installing hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310506011.2A CN103912034B (en) | 2013-10-24 | 2013-10-24 | The replacing options of digging machine disintegrating hammer cylinder body inner sleeve and housing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310506011.2A CN103912034B (en) | 2013-10-24 | 2013-10-24 | The replacing options of digging machine disintegrating hammer cylinder body inner sleeve and housing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103912034A true CN103912034A (en) | 2014-07-09 |
| CN103912034B CN103912034B (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310506011.2A Expired - Fee Related CN103912034B (en) | 2013-10-24 | 2013-10-24 | The replacing options of digging machine disintegrating hammer cylinder body inner sleeve and housing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103912034B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2209351C1 (en) * | 2002-03-04 | 2003-07-27 | Козлов Александр Николаевич | Pneumatic cylinder |
| CN1785603A (en) * | 2005-12-12 | 2006-06-14 | 河北师范大学 | Mounding and removing tool of cylinder jacker |
| CN200974223Y (en) * | 2006-10-31 | 2007-11-14 | 扬动股份有限公司 | Cylinder jacket quick-releasing instrument |
| KR100932048B1 (en) * | 2009-06-08 | 2009-12-15 | 동아대학교 산학협력단 | Servo cylinder |
| CN102294674A (en) * | 2010-12-02 | 2011-12-28 | 莫雪松 | Method for quickly dismantling drill rod bush of drill rod base assembly of hydraulic breaking hammer |
| CN202391849U (en) * | 2011-12-20 | 2012-08-22 | 鞍钢集团矿业公司 | Hydraulic actuator for disassembling inner sleeves in interference fit |
| CN202438351U (en) * | 2012-02-28 | 2012-09-19 | 天津辰龙重工机械有限公司 | Hydraulic breaking hammer |
| CN203531034U (en) * | 2013-10-24 | 2014-04-09 | 程鹤峰 | Cylinder block structure of excavator breaking hammer |
-
2013
- 2013-10-24 CN CN201310506011.2A patent/CN103912034B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2209351C1 (en) * | 2002-03-04 | 2003-07-27 | Козлов Александр Николаевич | Pneumatic cylinder |
| CN1785603A (en) * | 2005-12-12 | 2006-06-14 | 河北师范大学 | Mounding and removing tool of cylinder jacker |
| CN200974223Y (en) * | 2006-10-31 | 2007-11-14 | 扬动股份有限公司 | Cylinder jacket quick-releasing instrument |
| KR100932048B1 (en) * | 2009-06-08 | 2009-12-15 | 동아대학교 산학협력단 | Servo cylinder |
| CN102294674A (en) * | 2010-12-02 | 2011-12-28 | 莫雪松 | Method for quickly dismantling drill rod bush of drill rod base assembly of hydraulic breaking hammer |
| CN202391849U (en) * | 2011-12-20 | 2012-08-22 | 鞍钢集团矿业公司 | Hydraulic actuator for disassembling inner sleeves in interference fit |
| CN202438351U (en) * | 2012-02-28 | 2012-09-19 | 天津辰龙重工机械有限公司 | Hydraulic breaking hammer |
| CN203531034U (en) * | 2013-10-24 | 2014-04-09 | 程鹤峰 | Cylinder block structure of excavator breaking hammer |
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| Publication number | Publication date |
|---|---|
| CN103912034B (en) | 2016-08-17 |
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Granted publication date: 20160817 Termination date: 20171024 |
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| CF01 | Termination of patent right due to non-payment of annual fee |