CN104772736A - Removing tool and method for inlet/exhaust valve seat of diesel engine - Google Patents
Removing tool and method for inlet/exhaust valve seat of diesel engine Download PDFInfo
- Publication number
- CN104772736A CN104772736A CN201510134117.3A CN201510134117A CN104772736A CN 104772736 A CN104772736 A CN 104772736A CN 201510134117 A CN201510134117 A CN 201510134117A CN 104772736 A CN104772736 A CN 104772736A
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- Prior art keywords
- axle
- valve seat
- clamp jaw
- seat
- positioning seat
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a removing tool for inlet/exhaust valve seat of a diesel engine. The removing tool comprises a mandrel, an air valve clamping mechanism, a mandrel anti-rotation mechanism, a locking nut, a tension bar and a heavy punch, wherein a plurality of clamping claws of the air valve clamping mechanism are hinged to clamping claw seats; one end of the mandrel passes out of the central hole of a positioning seat; the two transverse sides of the clamping claws are pressed against the inner hole of the valve seat and the frustum body end periphery of the mandrel respectively. The locking nut is screwed on a stud of the mandrel, the mandrel is arranged on the tension bar on a sleeving way, and one end of the tension bar is connected integrally with the stud end of the mandrel through a screw thread. A removing method disclosed by the invention comprises the following steps: (1) making the mandrel pass out from among the plurality of clamping claws, screwing the locking nut, and mounting a fastening screw; (2) unscrewing the locking nut, and inserting the mandrel, the positioning seat and the locking nut into the inner hole of the valve seat; (3) screwing the locking nut; (4) assembling the tension bar and the heavy punch, and removing the valve seat by means of collision. The removing tool is light and compact in structure, time and labor are saved greatly during operation, the maintenance cost of the diesel engine is reduced, and the working efficiency is increased.
Description
Technical field
The present invention relates to a kind of removal tool of diesel engine part, especially a kind of specific purpose tool removed for cylinder of diesel engine tops inlet and outlet valve seat, belongs to diesel engine manufacturing technology field.
Background technology
The cylinder head of four-cycle diesel is provided with two to enter, two rows totally four inlet and outlet valves, the valve seat cooperating that every air valve and steel alloy steel are done, according to the difference of cylinder of diesel engine quantity, the quantity of the valve seat of a matched with diesel engine is 20-36.Existing dismounting valve seat method is: cut one block of plug steel plate equal with valve seat bore and itself and valve seat be welded as a whole, then cylinder head body is overturn, be used as a round steel of transmission rod through air valve stem guide sleeve hole, withstand the plug surface of steel plate be welded on valve seat, knock round steel termination with iron hammer again, the method driving valve seat to depart from cylinder head body gradually by plug steel plate removes valve seat.This method not only time-consuming, expend steel, simultaneously also destroy valve seat, affect reusing of valve seat, also easily damage the cylinder head body being worth costliness.Because the welding performance of the valve seat of steel alloy steel work is poor, sometimes knock after plug Plate Welding and will come off several times, and valve seat can't remove, must repeat, process is loaded down with trivial details, at least needs personnel's compounding practice of two work posts, also requires higher to the technical ability of operating personnel simultaneously, thus increase manufacturing cost, extend the manufacturing cycle.
Summary of the invention
The object of this invention is to provide a kind of light structure, remove quick and convenient, and the diesel valve seat removal tool of the gentle cylinder cap body of valve seat can not be damaged.
The present invention is achieved by the following technical programs:
A kind of diesel engine inlet and outlet valve seat removal tool, comprise axle, air valve clamp system, axle rotation-preventing mechanism, lock nut, stayed mast and weight, described axle is the assembly of cone table and stud, air valve clamp system comprises positioning seat and several clamp jaw, several uniform clamp jaw seat is axially extended in positioning seat one end, described clamp jaw seat the inner goes out axial groove to positioning seat sunken inside, and clamp jaw one end is imbedded in axial groove, by straight pin and clamp jaw seat hinged; The stud of axle passes positioning seat centre bore from several clamp jaw medial center, and clamp jaw both lateral sides is resisted against on the cone table periphery of valve seat endoporus and axle respectively; Axle rotation-preventing mechanism is arranged on the stud of positioning seat and axle; Lock nut is spun on the stud of axle, and one end-face is resisted against on the positioning seat other end; Weight is enclosed within stayed mast, and the stud of stayed mast one end and axle is threaded connection integral.
Object of the present invention can also be realized further by following technical measures.
Aforesaid diesel engine inlet and outlet valve seat removal tool, wherein said clamp jaw be greater than the wedge structure of longitudinal other end width for longitudinal one end width, the small end end cross of described wedge structure extends hook end.Be concave arc inside described hook end, the dome arc of described concave arc and valve seat endoporus one end coincide.
Aforesaid diesel engine inlet and outlet valve seat removal tool, the cone table tapering of wherein said axle is 1:1.8 ~ 2.0, and the cone table tapering of axle is identical with the wedge shape gradient of clamp jaw.
Aforesaid diesel engine inlet and outlet valve seat removal tool, described axle rotation-preventing mechanism comprises holding screw and is arranged on the axial location groove on the stud of axle, and holding screw is screwed in positioning seat, and holding screw termination is stretched in axial location groove.Described stayed mast other end radial direction extends flange.
Apply that diesel engine gas enters, a method for valve seat removal tool, comprise the following steps:
1) first the stud of axle is passed in the middle of the several clamp jaws positioning seat, then lock nut is spun on the stud of axle, then holding screw is screwed in positioning seat, mandrel, make the termination of holding screw stretch in the axial location groove of axle;
2) lock nut of positioning seat upper end is unscrewed, axle is moved to leaving positioning seat clamp jaw seat one extreme direction, until the cylindrical that several clamp jaw is collapsed into after departing from axle is less than valve seat endoporus, then will assembles all-in-one-piece axle, positioning seat and lock nut and inject in valve seat endoporus;
3) screw lock nut, make lock nut end face be resisted against on positioning seat other end; Axle moves to positioning seat other end direction, the cone table of axle outwards extrudes several clamp jaw, clamp jaw both lateral sides is tightly resisted against on the cone table periphery of valve seat endoporus and axle respectively, move until axle is no longer outer, the hook end concave arc of clamp jaw is close to the dome arc of valve seat endoporus one end;
4) weight is enclosed within stayed mast, then rotates stayed mast, make the internal thread hole of stayed mast one end and the stud of axle be threaded connection integral;
5) flange inner that weight clashes into the stayed mast other end is repeatedly moved fast, until the hook end of clamp jaw pulls out valve seat from cylinder head body.
Light structure of the present invention, compact, wedge clamping force is adopted to increase the principle of several times, after screwing lock nut, valve seat endoporus is clamped by clamp jaw between valve seat endoporus and cone table, the flange inner of the stayed mast other end be connected with axle is clashed into again by weight, only need an operator can pull down complete valve seat from cylinder head body, do not need welding plug steel plate, operation save time very much, laborsaving.And the gentle cylinder cap of valve seat can not be damaged, reduce the maintenance cost of diesel engine, improve operating efficiency.
Advantage and disadvantage of the present invention, by for illustration and explanation for the non-limitative illustration passing through preferred embodiment below, these embodiments, only provide as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention loads valve seat;
Fig. 2 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As depicted in figs. 1 and 2, the present invention includes axle 1, air valve clamp system 2, axle rotation-preventing mechanism 3, lock nut 4, stayed mast 5 and weight 6, axle 1 is the assembly of cone table 11 and stud 12, and the tapering of cone table 11 is 1:1.8 ~ 2.0, and the present embodiment is 1:1.9.Air valve clamp system 2 comprises positioning seat 21 and 4 clamp jaws 22, positioning seat 21 left end shaft is to extending 4 uniform clamp jaw seats 211, clamp jaw seat 23 the inner goes out axial groove 212 to positioning seat 21 sunken inside, clamp jaw 22 left end imbeds in axial groove 212, hinged by straight pin 23 and clamp jaw seat 211.Clamp jaw 22 is the wedge structure that longitudinal right-hand member width is greater than longitudinal left end width, and clamp jaw 22 both lateral sides is resisted against on valve seat endoporus 71 and cone table 11 periphery respectively.
As shown in Figure 2, cone table 11 tapering is identical with the wedge shape gradient of clamp jaw 22, the conicity angles alpha of 1:1.9 tapering is 13.89 °, thus, cone table 11 moves horizontally more than 4 times that normal force F that power F1 produces is F1 to the right, the stud 12 of axle 1 passes positioning seat centre bore 213 from 4 clamp jaw 22 medial center, and clamp jaw 22 both lateral sides is resisted against on cone table 11 periphery of valve seat endoporus 71 and axle 1 respectively.The principle of the wedge clamping utilizing axle 1 to move axially, makes axle 1, clamp jaw 22 and valve seat 7 link into an integrated entity.Clamp jaw 22 small end end cross extends hook end 221, and the dome arc of the concave arc inside hook end 21 and valve seat endoporus left end coincide, and is convenient to clamp jaw 22 and pulls out valve seat 7 from cylinder head body 8.Lock nut 4 is spun on the stud 12 of axle 1, and its left end end face is resisted against on the right side of positioning seat 21.The weight 6 of annular is enclosed within stayed mast 5, and stayed mast 5 left end screwed hole 51 links into an integrated entity with the stud 12 of axle 1, and stayed mast 5 right-hand member radial direction extends the flange end 52 for weight 6 hammering.
When the effect of axle rotation-preventing mechanism 3 is to prevent spin locking nut 4, axle 1 is and then rotated together.It axial location groove 121 comprising holding screw 31 and be arranged on the stud 12 of axle 1, holding screw 31 is screwed in it along positioning seat 21 radial direction, and its termination is stretched in axial location groove 121.
Apply that diesel engine gas of the present invention enters, the method for valve seat removal tool, comprise the following steps:
1) first the stud 12 of axle is passed in the middle of the clamp jaw 22 of 4 positioning seat 21, then lock nut 4 is spun on the stud 12 of axle 1, then holding screw 31 is screwed in positioning seat 21, mandrel 1, the termination of holding screw 31 is made to stretch in the axial location groove 121 of axle 1, during to prevent spin locking nut 4, axle 1 and then rotates and cannot screw.
2) lock nut 4 of positioning seat 21 right-hand member is unscrewed, axle 1 is moved to the clamp jaw seat 211 left end direction of positioning seat 21, until the cylindrical that 3 clamp jaws 22 are collapsed into after departing from axle 1 is less than valve seat endoporus 71, then assembling all-in-one-piece axle 1, positioning seat 21 and lock nut 4 are injected in valve seat endoporus 71.
3) screw lock nut 4, make lock nut 4 end face be resisted against on positioning seat right side; Axle 1 moves to positioning seat 21 right-hand member direction, cone table 11 outwards extruding 4 clamp jaws 22 of axle 1, clamp jaw 22 both lateral sides is tightly resisted against on the periphery of cone table 11 of valve seat endoporus 71 and axle 1 respectively, until axle 1 no longer moves to right, hook end 221 concave arc of clamp jaw 22 is close to the dome arc of valve seat endoporus 71 one end.
4) weight 6 is enclosed within stayed mast 5, then rotates stayed mast 5, make the internal thread hole 51 of stayed mast 5 left end be threaded connection integral with the stud 12 of axle 1.
5) fast repeatedly move weight 6 to clash into inside the flange 51 of stayed mast 5 right-hand member, until the hook end 221 of clamp jaw 22 pulls out valve seat 7 from cylinder head body 8, operation save time very much, laborsaving.
In addition to the implementation, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of application claims.
Claims (7)
1. a diesel engine inlet and outlet valve seat removal tool, it is characterized in that: comprise axle, air valve clamp system, axle rotation-preventing mechanism, lock nut, stayed mast and weight, described axle is the assembly of cone table and stud, air valve clamp system comprises positioning seat and several clamp jaw, several uniform clamp jaw seat is axially extended in positioning seat one end, described clamp jaw seat the inner goes out axial groove to positioning seat sunken inside, and clamp jaw one end is imbedded in axial groove, by straight pin and clamp jaw seat hinged; The stud of axle passes positioning seat centre bore from several clamp jaw medial center, and clamp jaw both lateral sides is resisted against on the cone table periphery of valve seat endoporus and axle respectively; Axle rotation-preventing mechanism is arranged on the stud of positioning seat and axle; Lock nut is spun on the stud of axle, and one end-face is resisted against on the positioning seat other end; Weight is enclosed within stayed mast, and the stud of stayed mast one end and axle is threaded connection integral.
2. diesel engine inlet and outlet block of valve seat removal tool as claimed in claim 1, is characterized in that: described clamp jaw be greater than the wedge structure of longitudinal other end width for longitudinal one end width, the small end end cross of described wedge structure extends hook end.
3. diesel engine inlet and outlet block of valve seat removal tool as claimed in claim 2, is characterized in that: be concave arc inside described hook end, the dome arc of described concave arc and valve seat endoporus one end coincide.
4. diesel engine inlet and outlet valve seat removal tool as claimed in claim 1, is characterized in that: the cone table tapering of described axle is 1:1.8 ~ 2.0, and the cone table tapering of axle is identical with the wedge shape gradient of clamp jaw.
5. diesel engine inlet and outlet valve seat removal tool as claimed in claim 1, it is characterized in that: described axle rotation-preventing mechanism comprises holding screw and is arranged on the axial location groove on the stud of axle, holding screw is screwed in positioning seat, and holding screw termination is stretched in axial location groove.
6. diesel engine inlet and outlet valve seat removal tool as claimed in claim 1, is characterized in that: described stayed mast other end radial direction extends flange.
7. apply a method for diesel engine gas inlet and outlet valve seat removal tool as claimed in claim 1, it is characterized in that: comprise the following steps:
1) first the stud of axle is passed in the middle of the several clamp jaws positioning seat, then lock nut is spun on the stud of axle, then holding screw is screwed in positioning seat, mandrel, make the termination of holding screw stretch in the axial location groove of axle;
2) lock nut of positioning seat upper end is unscrewed, axle is moved to leaving positioning seat clamp jaw seat one extreme direction, until the cylindrical that several clamp jaw is collapsed into after departing from axle is less than valve seat endoporus, then will assembles all-in-one-piece axle, positioning seat and lock nut and inject in valve seat endoporus;
3) screw lock nut, make lock nut end face be resisted against on positioning seat other end; Axle moves to positioning seat other end direction, the cone table of axle outwards extrudes several clamp jaw, clamp jaw both lateral sides is tightly resisted against on the cone table periphery of valve seat endoporus and axle respectively, move until axle is no longer outer, the hook end concave arc of clamp jaw is close to the dome arc of valve seat endoporus one end;
4) weight is enclosed within stayed mast, then rotates stayed mast, make the internal thread hole of stayed mast one end and the stud of axle be threaded connection integral;
5) flange inner that weight clashes into the stayed mast other end is repeatedly moved fast, until the hook end of clamp jaw pulls out valve seat from cylinder head body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134117.3A CN104772736B (en) | 2015-03-26 | 2015-03-26 | Method for applying removing tool for inlet/exhaust valve seat of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134117.3A CN104772736B (en) | 2015-03-26 | 2015-03-26 | Method for applying removing tool for inlet/exhaust valve seat of diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104772736A true CN104772736A (en) | 2015-07-15 |
| CN104772736B CN104772736B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510134117.3A Active CN104772736B (en) | 2015-03-26 | 2015-03-26 | Method for applying removing tool for inlet/exhaust valve seat of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104772736B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105773517A (en) * | 2016-03-22 | 2016-07-20 | 兰州理工大学 | Installation method of heavy valve element |
| CN106078617A (en) * | 2016-08-23 | 2016-11-09 | 中冶陕压重工设备有限公司 | A kind of self-locking three-jaw pulls out valve device |
| CN109571371A (en) * | 2019-01-24 | 2019-04-05 | 中国人民解放军陆军工程大学 | Revolve handler |
| CN109773695A (en) * | 2019-03-25 | 2019-05-21 | 安徽瑞林精科股份有限公司 | A kind of engine Rear oil seal bracket mounting tool |
| CN110977872A (en) * | 2019-12-20 | 2020-04-10 | 东方电气集团东方汽轮机有限公司 | Valve seat dismounting device and method |
| CN113400249A (en) * | 2021-07-14 | 2021-09-17 | 四川交通职业技术学院 | Diesel engine valve seat dismounting tool and using method thereof |
| CN115026757A (en) * | 2021-03-05 | 2022-09-09 | 中国航发商用航空发动机有限责任公司 | Disassembling tool for sealing runway |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191324896A (en) * | 1913-11-01 | 1914-10-22 | William Smith | Improved Apparatus for Lifting and Removing Bodies such as Valve Seats and the like. |
| GB203143A (en) * | 1922-07-29 | 1923-09-06 | Arthur Edgerton | A new or improved tool or device for removing valves and their fittings from internal combustion engines |
| US1652857A (en) * | 1925-07-07 | 1927-12-13 | Edgar E Greve | Valve-seat puller |
| US1958330A (en) * | 1933-06-26 | 1934-05-08 | Lawrence O Beard | Race puller |
| US5533245A (en) * | 1994-10-18 | 1996-07-09 | Stanton; Eddie | Releasable valve seat removal tool |
| CN102085650A (en) * | 2011-01-27 | 2011-06-08 | 东风朝阳柴油机有限责任公司 | Appliance special for dismounting valve seat ring of diesel engine cylinder cover |
| CN103341844A (en) * | 2013-07-15 | 2013-10-09 | 天津百利展发集团有限公司 | Installation tool for gate valve base |
| CN203357397U (en) * | 2013-06-04 | 2013-12-25 | 中国石油化工股份有限公司 | Oil field polymer injection pump repairing tool |
| CN203542537U (en) * | 2013-11-29 | 2014-04-16 | 七台河宝泰隆圣迈煤化工有限责任公司 | Special tool for detaching valve of feeding pump |
| CN204640114U (en) * | 2015-03-26 | 2015-09-16 | 中船动力有限公司 | Diesel engine inlet and outlet valve seat removal tool |
-
2015
- 2015-03-26 CN CN201510134117.3A patent/CN104772736B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191324896A (en) * | 1913-11-01 | 1914-10-22 | William Smith | Improved Apparatus for Lifting and Removing Bodies such as Valve Seats and the like. |
| GB203143A (en) * | 1922-07-29 | 1923-09-06 | Arthur Edgerton | A new or improved tool or device for removing valves and their fittings from internal combustion engines |
| US1652857A (en) * | 1925-07-07 | 1927-12-13 | Edgar E Greve | Valve-seat puller |
| US1958330A (en) * | 1933-06-26 | 1934-05-08 | Lawrence O Beard | Race puller |
| US5533245A (en) * | 1994-10-18 | 1996-07-09 | Stanton; Eddie | Releasable valve seat removal tool |
| CN102085650A (en) * | 2011-01-27 | 2011-06-08 | 东风朝阳柴油机有限责任公司 | Appliance special for dismounting valve seat ring of diesel engine cylinder cover |
| CN203357397U (en) * | 2013-06-04 | 2013-12-25 | 中国石油化工股份有限公司 | Oil field polymer injection pump repairing tool |
| CN103341844A (en) * | 2013-07-15 | 2013-10-09 | 天津百利展发集团有限公司 | Installation tool for gate valve base |
| CN203542537U (en) * | 2013-11-29 | 2014-04-16 | 七台河宝泰隆圣迈煤化工有限责任公司 | Special tool for detaching valve of feeding pump |
| CN204640114U (en) * | 2015-03-26 | 2015-09-16 | 中船动力有限公司 | Diesel engine inlet and outlet valve seat removal tool |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105773517A (en) * | 2016-03-22 | 2016-07-20 | 兰州理工大学 | Installation method of heavy valve element |
| CN106078617A (en) * | 2016-08-23 | 2016-11-09 | 中冶陕压重工设备有限公司 | A kind of self-locking three-jaw pulls out valve device |
| CN106078617B (en) * | 2016-08-23 | 2018-04-24 | 中冶陕压重工设备有限公司 | A kind of self-locking three-jaw pulls out valve device |
| CN109571371A (en) * | 2019-01-24 | 2019-04-05 | 中国人民解放军陆军工程大学 | Revolve handler |
| CN109571371B (en) * | 2019-01-24 | 2024-01-30 | 中国人民解放军陆军工程大学 | Rotary unloading device |
| CN109773695A (en) * | 2019-03-25 | 2019-05-21 | 安徽瑞林精科股份有限公司 | A kind of engine Rear oil seal bracket mounting tool |
| CN109773695B (en) * | 2019-03-25 | 2021-01-01 | 安徽瑞林精科股份有限公司 | Engine rear oil seal support mounting tool |
| CN110977872A (en) * | 2019-12-20 | 2020-04-10 | 东方电气集团东方汽轮机有限公司 | Valve seat dismounting device and method |
| CN115026757A (en) * | 2021-03-05 | 2022-09-09 | 中国航发商用航空发动机有限责任公司 | Disassembling tool for sealing runway |
| CN115026757B (en) * | 2021-03-05 | 2024-02-27 | 中国航发商用航空发动机有限责任公司 | Disassembling tool for sealing runway |
| CN113400249A (en) * | 2021-07-14 | 2021-09-17 | 四川交通职业技术学院 | Diesel engine valve seat dismounting tool and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104772736B (en) | 2017-01-25 |
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Address after: 212211 No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |