CN102950453B - Camshaft bush installation tool of heavy-duty diesel engine - Google Patents
Camshaft bush installation tool of heavy-duty diesel engine Download PDFInfo
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- CN102950453B CN102950453B CN201110249861.XA CN201110249861A CN102950453B CN 102950453 B CN102950453 B CN 102950453B CN 201110249861 A CN201110249861 A CN 201110249861A CN 102950453 B CN102950453 B CN 102950453B
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- diesel engine
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- duty diesel
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Abstract
The invention discloses a camshaft bush installation tool of a heavy-duty diesel engine. The camshaft bush installation tool of the heavy-duty diesel engine comprises a pressure lever and a guide sleeve sheathed with the pressure lever, wherein the pressure lever comprises a joint, a plunger chip, and a connecting pipe used for connecting the joint and the plunger chip, the joint is provided with a bush positioning part, and one end of the plunger chip is provided with a backstop bulge and a guide key arranged in a guide key slot extending along the axial direction; and the guide sleeve is internally provided with a guide slot, the pressure lever penetrates in the guide sleeve, and the guide key of the plunger chip extends into the guide slot of the guide sleeve, and is spaced by the backstop bulge. The installation phase and the installation depth of a camshaft bush on the diesel engine can be ensured by virtue of the camshaft bush installation tool of the heavy-duty diesel engine, so that the structure can greatly enhance the installation precision of the camshaft bush on the diesel engine, reduce the repeated operation and the camshaft bush scraped due to the poor installation precision of the camshaft bush, reduce the production cost and enhance the production efficiency.
Description
Technical field
The present invention relates to large diesel engine field, particularly a kind of tool for installing camshaft bush of heavy-duty diesel engine.
Background technology
Field is manufactured at diesel engine, especially on large diesel engine manufactures, due to the particularity of side-mounted camshaft structure, there is no special, large-scale cam shaft bush press-loading device, normally draw agate device (not shown) by hydraulic pressure, the labour intensity of the producer can be alleviated to a great extent, but in the installation accuracy of cam shaft bush 6, comprise the installation phase place of cam shaft bush on diesel-engine body and fitting depth, depend on the level of skill of producer individual completely.But also need two producers to cooperatively interact, wherein one man operation hydraulic pressure draws agate, control cam shaft bush 6 fitting depth on a diesel engine, another people controls cam shaft bush 6 installation phase place on a diesel engine by the camshaft hole oilhole 71 on diesel-engine body 7, and the oilhole 61 (as shown in Figure 2 a and 2 b) on guarantee cam shaft bush 6 aligns completely with the camshaft hole oilhole 71 (as shown in Fig. 1 a, Fig. 1 b and Fig. 1 c) on diesel-engine body 7.
There is obvious shortcoming installing in above cam shaft bush: the installation accuracy of (1) cam shaft bush 6 is poor: cam shaft bush 6 installation phase place on a diesel engine and fitting depth are owing to being rely on manual control, lack stopping means, cam shaft bush 6 installation accuracy is on a diesel engine difficult to ensure; (2) production efficiency is low, production cost is high: installing cam shaft bush 6 needs two producer's cooperations, just can complete, because cam shaft bush installation accuracy is low, the underproof cam shaft bush of installation accuracy is just many, needs are done over again, and after these cam shaft bushes adopt special tooling to take out from diesel-engine body, will scrap, can not use again, new cam shaft bush must be adopted to reinstall.
Summary of the invention
The technical problem that the present invention solves is to provide the tool for installing camshaft bush of heavy-duty diesel engine that a kind of installation accuracy is high, production efficiency is high.
For achieving the above object, the invention provides a kind of tool for installing camshaft bush of heavy-duty diesel engine, comprise: depression bar and the fairlead be sleeved on depression bar, depression bar comprises: joint and drift, and the tube connector of jointing and drift, joint has lining location division, one end of drift has stopper protrusion and is arranged on the feather key in the guide key groove that extends vertically, fairlead inside has gathering sill, when depression bar penetrates fairlead, the feather key of drift stretches into the gathering sill of fairlead, and spacing by stopper protrusion.
Further, lining location division is the pressing plate being arranged on joint side, and pressing plate has the cylindrical slot of top adduction, is provided with by spring-supported steel ball in cylindrical slot.
Further, pressing plate is two, is relatively mutually the side being arranged on described joint of 180 degree.
Further, fairlead comprises: cylindrical flange and the reinforcing bar annulus being fixed on cylindrical flange one end, the port of the other end of cylindrical flange has the annular stop of radially adduction, and fairlead is fixed to camshaft hole port by bolt through through hole in annular stop.
Further, there is multiple spacing preiection coordinated with stopper protrusion in cylindrical flange.
Further, joint and drift respectively by positioning spiro pit positioning welding on tube connector.
According to technical scheme of the present invention, owing to ensureing cam shaft bush installation phase place on a diesel engine and fitting depth by tool for installing camshaft bush of heavy-duty diesel engine, these special constructions have increased substantially cam shaft bush installation accuracy on a diesel engine, decrease scrapping of because cam shaft bush installation accuracy the difference work of doing over again that causes and cam shaft bush, reduce production cost, improve production efficiency.
Accompanying drawing explanation
Fig. 1 a is the main TV structure schematic diagram of existing large diesel engine body;
Fig. 1 b is the horizontal complete section structural representation of existing large diesel engine body;
Fig. 1 c is the sectional structure schematic diagram in the A-A direction of Fig. 1 b;
Fig. 2 a and Fig. 2 b looks and side-looking structural representation according to the master of camshaft bush of heavy-duty diesel engine of the present invention;
Fig. 3 a is the structural representation of the depression bar according to tool for installing camshaft bush of heavy-duty diesel engine of the present invention;
Fig. 3 b is the sectional structure schematic diagram in the B-B direction of Fig. 3 a;
Fig. 4 a and Fig. 4 b looks and axial sectional structure schematic diagram according to the master of the joint of tool for installing camshaft bush of heavy-duty diesel engine of the present invention;
Fig. 5 a is the main TV structure schematic diagram of the joint pressing plate according to tool for installing camshaft bush of heavy-duty diesel engine of the present invention;
Fig. 5 b is the sectional structure schematic diagram in the C-C direction of Fig. 5 a;
Fig. 6 a is the main TV structure schematic diagram of the drift according to tool for installing camshaft bush of heavy-duty diesel engine of the present invention;
Fig. 6 b is the sectional structure schematic diagram in the D-D direction of Fig. 6 a;
Fig. 7 a and Fig. 7 b looks and axial sectional structure schematic diagram according to the master of the tube connector of tool for installing camshaft bush of heavy-duty diesel engine of the present invention;
Fig. 8 a and Fig. 8 b looks and plan structure schematic diagram according to the master of the fairlead of tool for installing camshaft bush of heavy-duty diesel engine of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of detailed description of the invention.
Referring to Fig. 3 a and Fig. 3 b, this tool for installing camshaft bush of heavy-duty diesel engine comprises: depression bar 5 and the fairlead 4 be sleeved on depression bar 5, depression bar 5 comprises: joint 1 and drift 2, and the tube connector 3 connecting this joint 1 and drift 2.Wherein, as shown in figures 4 a and 4b, joint 1 is cylindric, middle part has stop lug 11, right-hand member is attachment plug 12, the side opening of attachment plug 12 is provided with positioning spiro pit (not shown), the upper and lower side of left end is relatively set with two pressing plates 13, the middle part of this pressing plate 13 has the cylindrical slot 131 of top adduction, the cylindrical slot 131 of two pressing plates 13 is mutually 180 degree, be provided with by spring-supported steel ball 132 in cylindrical slot 131, steel ball 132 pushes against the upper port of cylindrical slot 131 under the action of the spring, part is only had to spill this upper port, the two ends of this pressing plate 13 are fixed on (as shown in figure 5 a and 5b) on joint 1 by sunk screw, the cylindrical slot 131 of two pressing plates 13 is mutually 180 degree of installations making same depression bar 5 coordinate different fairleads 4 can realize two grades of cam shaft bushes symmetrical on diesel engine, reduce costs.
As shown in figures 6 a and 6b, drift 2 is column, left end (in figure upper end) has attachment plug 21, the side opening of attachment plug 21 is provided with positioning spiro pit 211, right-hand member (in figure lower end) has stopper protrusion 22, and stopper protrusion 22 is three, is evenly distributed on the right-hand member circumference of drift 2, drift 2 also has the guide key groove 23 extended along right-hand member left, and feather key 24 is arranged in this guide key groove 23.
As shown in figs. 7 a and 7b, tube connector 3 can adopt seamless steel pipe, left and right two-port is distributed and is provided with jiont treatment groove 31 and drift mounting groove 32, the sidewall of jiont treatment groove 31 offers the positioning spiro pit 311 run through, the sidewall of drift mounting groove 32 offers the positioning spiro pit 321 run through;
During assembling depression bar 5, after first jiont treatment groove 31 being inserted in the attachment plug 12 of joint 1, positioned by the positioning spiro pit of screw through positioning spiro pit 311 and attachment plug 12, finally joint 1 is welded on tube connector 3; Drift 2 is installed again, after first drift mounting groove 32 being inserted in the attachment plug 21 of drift 2, is positioned through positioning spiro pit 321 and positioning spiro pit 211 by screw, finally drift 2 is welded on tube connector 3.Erection joint 1 and drift 2 is come by the positioning spiro pit 311 on tube connector 3 and positioning spiro pit 321, can ensure that the guide key groove 23 center angulation of axis and drift 2 installed by the steel ball 132 in joint 1 top board 13, and then ensure that the oilhole 61 of the cam shaft bush 6 be enclosed within joint 1 just in time aligns completely with the camshaft hole oilhole 71 on diesel-engine body 7 after pressure people.
As figures 8 a and 8 b show, fairlead 4 is weldment, comprise: cylindrical flange 41 and the reinforcing bar annulus 42 being welded on cylindrical flange 41 right-hand member excircle, left end (in the figure lower end) mouthpiece of cylindrical flange 41 has the annular stop of radially adduction, the top of annular stop has locating surface A, and be evenly equipped with through hole 411, the inwall of cylindrical flange 41 is welded with multiple circumferentially uniform spacing preiection 412, and the upper end of one of them spacing preiection 412 offers axially extended gathering sill 413.
During camshaft lining 6, first fairlead 4 through hole 411 that hexagon socket cap head screw passes annular end face is fixed on the end face of camshaft holes of diesel engine 72, according to first middle gear, progressively two ends select appropriate length tool for installing camshaft bush to install successively forwards, backwards, concrete steps are: first the joint 1 of depression bar 5 is pushed fairlead 4, enter diesel-engine body 7, when feather key 24 part of drift 2 enters the gathering sill 413 on fairlead 4, cam shaft bush 6 is installed to joint 1 from the inner chamber cover of diesel-engine body 7, make the steel ball 132 on the oilhole 61 pairs of pressure plates 13 on cam shaft bush 6, steel ball 132 is upspring under the action of the spring and is blocked the oilhole 61 of cam shaft bush 6, the installation axis of steel ball 132 and guide key groove 23 center angulation can ensure that the oilhole 61 of cam shaft bush 6 just in time aligns completely with the camshaft hole oilhole 71 on diesel-engine body 7 after pressure people, thus ensure the installation phase place of cam shaft bush 6, also ensure that cam shaft bush 6 does not rotate press-fiting in process simultaneously, then connecting hydraulic pressure draws three claws of agate (not shown) on the reinforcing bar annulus 42 of fairlead 4, hydraulic pressure is regulated to draw the thimble length of agate, it is made to touch the right side of drift 2, pull hydraulic pressure and draw agate spanner, thimble is made to continue to stretch out, actuating cam neck bush 6 moves along camshaft holes of diesel engine 72, stop until the stopper protrusion 22 of drift 2 contacts with the locating surface A of fairlead 4, now touch reversal valve, remove hydraulic pressure, depression bar 5 is pulled out along drift 2 direction, steel ball 132 all enters in pressing plate 13, depression bar 5 departs from cam shaft bush 6, just can complete the assembling of the cam shaft bush 6 of a grade.
Cam shaft bush 6 fitting depth on a diesel engine controls expression formula: L1+L2=H1+H2+H3, and wherein L1 is the spacing (as shown in Figure 8 a) of locating surface A face to the end face of camshaft holes of diesel engine 72 of fairlead 4; L2 is the distance (as illustrated in figure 1 c) of center to camshaft holes of diesel engine 72 end face of diesel-engine body 7 overhead cam bearing bushing oil hole 71; H1 is that drift 2 locating surface (upper surface of drift 2 stopper protrusion 22) is to the distance (as shown in Figure 6 b) between drift 2 and tube connector 3 joint face; H2 is tube connector 3 length (as shown in Figure 7b); H3 be pressing plate 13 cylindrical slot 131 axis to joint 1 axial locating surface (right side of joint 1 stop lug 11) distance (as shown in fig. 4 a), wherein L2 is constant, is determined by the structural parameters of diesel engine.
Owing to ensureing cam shaft bush 6 installation phase place on a diesel engine and fitting depth by tool for installing camshaft bush of heavy-duty diesel engine, these special constructions have increased substantially cam shaft bush 6 installation accuracy on a diesel engine, decrease scrapping of because cam shaft bush 6 installation accuracy the difference work of doing over again that causes and cam shaft bush, reduce production cost, improve production efficiency.
Be only a specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (5)
1. a tool for installing camshaft bush of heavy-duty diesel engine, it is characterized in that, comprise: depression bar and the fairlead be sleeved on described depression bar, described depression bar comprises: joint and drift, and connect the tube connector of described joint and drift, described joint has lining location division, one end of described drift has stopper protrusion and is arranged on the feather key in the guide key groove that extends vertically, described fairlead inside has gathering sill, when described depression bar penetrates fairlead, the feather key of described drift stretches into the gathering sill of described fairlead, and spacing by described stopper protrusion; Described fairlead comprises: cylindrical flange and the reinforcing bar annulus being fixed on described cylindrical flange one end, the port of the other end of described cylindrical flange has the annular stop of radially adduction, and described fairlead is fixed to camshaft hole port by bolt through through hole in described annular stop.
2. tool for installing camshaft bush of heavy-duty diesel engine according to claim 1, it is characterized in that, described lining location division is the pressing plate being arranged on described joint side, and described pressing plate has the cylindrical slot of top adduction, is provided with by spring-supported steel ball in described cylindrical slot.
3. tool for installing camshaft bush of heavy-duty diesel engine according to claim 2, is characterized in that, described pressing plate is two, is relatively mutually the side being arranged on described joint of 180 degree.
4. tool for installing camshaft bush of heavy-duty diesel engine according to claim 1, is characterized in that, has the spacing preiection that multiple and described stopper protrusion coordinates in described cylindrical flange.
5. tool for installing camshaft bush of heavy-duty diesel engine according to claim 1, is characterized in that, described joint and drift respectively by positioning spiro pit positioning welding on tube connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110249861.XA CN102950453B (en) | 2011-08-29 | 2011-08-29 | Camshaft bush installation tool of heavy-duty diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110249861.XA CN102950453B (en) | 2011-08-29 | 2011-08-29 | Camshaft bush installation tool of heavy-duty diesel engine |
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| Publication Number | Publication Date |
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| CN102950453A CN102950453A (en) | 2013-03-06 |
| CN102950453B true CN102950453B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110249861.XA Active CN102950453B (en) | 2011-08-29 | 2011-08-29 | Camshaft bush installation tool of heavy-duty diesel engine |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395043B (en) * | 2013-07-02 | 2015-08-05 | 广西玉柴机器股份有限公司 | Press mounting of camshaft bush of diesel engine device |
| CN103737292A (en) * | 2013-12-31 | 2014-04-23 | 广西玉柴机器股份有限公司 | Engine cam shaft lining installation device |
| CN105689964B (en) * | 2014-11-24 | 2018-01-16 | 安徽省小小科技股份有限公司 | A kind of automatic force feed covering device of hollow shaft |
| CN106335024B (en) * | 2016-11-08 | 2018-01-30 | 广西玉柴机器股份有限公司 | Bushing press-mounting instrument |
| CN106541361B (en) * | 2016-11-08 | 2018-06-01 | 广西玉柴机器股份有限公司 | Bushing press-mounting instrument |
| CN106392990B (en) * | 2016-12-08 | 2019-05-21 | 广西玉柴机器股份有限公司 | The pressing component of cylinder block cam shaft bush |
| CN106984962A (en) * | 2017-06-01 | 2017-07-28 | 四川银钢通凸轮轴有限公司 | One kind pressure signal wheel frock |
| CN107838834B (en) * | 2017-12-13 | 2023-07-11 | 中船动力有限公司 | Roller bushing installation positioning device and method |
| CN108274215B (en) * | 2018-01-17 | 2020-03-17 | 广东威灵电机制造有限公司 | Tool for mounting motor shaft |
| CN109128800B (en) * | 2018-08-23 | 2019-10-11 | 南京机电职业技术学院 | A kind of O-ring group kludge |
| CN110405682A (en) * | 2019-07-30 | 2019-11-05 | 新余钢铁股份有限公司 | A kind of cam shaft for diesel engine dismounting process guide sleeve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3925093B2 (en) * | 2001-03-12 | 2007-06-06 | 日産自動車株式会社 | Rubber bushing press-fitting method and press-fitting device |
| JP4079259B2 (en) * | 2002-12-13 | 2008-04-23 | 日産ディーゼル工業株式会社 | Press-fitting device |
| CN201808021U (en) * | 2010-09-17 | 2011-04-27 | 安徽江淮汽车股份有限公司 | Cylinder cap air valve catheter press mounting auxiliary tool |
| CN201889751U (en) * | 2010-11-23 | 2011-07-06 | 广西玉柴机器股份有限公司 | Tool for mounting engine camshaft bushing |
| CN202292035U (en) * | 2011-08-29 | 2012-07-04 | 广西玉柴机器股份有限公司 | Tool for installing camshaft bush of heavy-duty diesel engine |
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