CN106695666A - Dismounting device for air valve seat, setting wheel bearing and hinge pin bushing of diesel engine - Google Patents
Dismounting device for air valve seat, setting wheel bearing and hinge pin bushing of diesel engine Download PDFInfo
- Publication number
- CN106695666A CN106695666A CN201510416463.0A CN201510416463A CN106695666A CN 106695666 A CN106695666 A CN 106695666A CN 201510416463 A CN201510416463 A CN 201510416463A CN 106695666 A CN106695666 A CN 106695666A
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- China
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- dismounting device
- supporting plate
- valve seat
- wheel bearing
- pin bushing
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Abstract
The invention provides a dismounting device for an air valve seat, a setting wheel bearing and a hinge pin bushing of a diesel engine, relates to a dismounting device for parts of the diesel engines, and aims at solving the problems of time and force waste, easy breaking on accessories, low efficiency and high working intensity of a current dismounting device for the air valve seat, the setting wheel bearing and a DF8B hinge pin bushing of the diesel engine. The dismounting device is characterized in that a puller is connected to the end part of a lead screw through an inner tapered sleeve, wherein a supporting plate is fixed to the lead screw through a feed screw nut; three supporting bolts are uniformly fixed in the same circumference of the supporting plate in the axial direction of the supporting plate. According to the dismounting device, the lead screw transmission and the tapered surface fitting principle is adopted, so that the force acted on a dismounted matter can be adjusted, and as a result, the dismounted matter can be prevented from being damaged during the operation process; the working acting point is converted from point contact into surface contact, so that the acting area is large, the power is balanced, the dismounting power is high, and as a result, the production efficiency is improved, and the working intensity is reduced; the dismounting device is simple in structure, low in cost, compact in structure, and convenient to dismount and mount.
Description
Technical field
The present invention relates to air valve seat and mistake wheel bearing and DF8B bearing pin bushing dismounting devices, the provision for disengagement of diesel engine cylinder head air valve seat and positive hour setting wheel sliding bearing and DF8B diesel engine front end third wheel bearing pin bushings is particularly related to.
Background technology
For the dismounting of DF8B types and DF11 type locomotive diesel engine front end third wheel bearing inserts, current method for dismounting is, the method tapped back and forth up and down using iron hammer or copper rod is dismantled, the physical dimension of body bushing mounting holes can be not only influenceed in unloading process, and waste time and energy, labour intensity is big.For DF4 series, DF5 series, DF7 series, DF10 series, DF8B serial diesel engines timing gears are mostly sliding bearings, generally also copper sheathing is tapped using both sides or the method that copper sheathing is crushed is dismantled with forcing press directly, bore physical dimension and finish equally can be also influenceed, so as to bury accident potential to locomotive.When air valve seat ring is dismantled, during usual way：（1）Machining, i.e., repair relatively thin size using boring machine by the thickness boring of valve retainer, the seat ring destruction after boring is repaiied with utensil, recycles lever principle, and the valve retainer that will be left in bore is prized；（2）Directly use electrical pads seat ring, then withstand seat ring with waste and old valve stem and tap energetically and get, the above method is cumbersome, labour intensity is big, it is less efficient, while will also result in destruction to mounting hole, increase accessory maintenance difficulty, due to the deformation of bore, also accident potential has been buried to later stage locomotive operation.
The content of the invention
The purpose of the present invention is directed to above-mentioned deficiency, and a kind of high working efficiency for proposing, hidden danger of quality, and simple structure will not be in itself caused to accessory, convenient disassembly is easy, a kind of provision for disengagement that can be used in many ways.
Technical solution of the invention is：The drawing horse of provision for disengagement is connected to the end of leading screw by taper inner sleeve, and supporting plate is fixed on leading screw by feed screw nut, and three carrying bolts are uniformly fixed with along the axial direction of supporting plate on the same circumference of supporting plate.
Three carrying bolts and feed screw nut described in technical solution of the invention are respectively provided on two sides of supporting plate.
The present invention uses lead screw transmission and cone match principle, reaches operation controllability, acts on and is disassembled the active force of object and can adjust, and can be prevented effectively from operating process and damage；The present invention utilizes worm drive principle, works more steady.Due to draw horse working face be arc close to semicircle thus work impetus by former point contact be converted to face contact, put forth effort area increasing, so functioning equalization, dismounting strength is big, solve that impetus is uneven well, the big problem of impulsive force, it is to avoid to the damage of accessory in unloading process；It is taper due to drawing horse inner sleeve, draws horse to increase air valve seat lateral pressure with the increased of pulling force, it is to avoid draws horse to slip in the course of work.The present invention is not only easy to operate, laborsaving, and substantially reduces the working time, drastically increases production efficiency；Simple structure of the present invention, low cost, compact conformation, convenient disassembly.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the schematic diagram using present invention dismounting cylinder end valve seat ring.
Specific embodiment
As shown in figure 1, the present invention includes drawing horse 3, leading screw 5, supporting plate 6 and carrying bolt 4；Draw horse 3 that the end of leading screw 5 is connected to by the taper inner sleeve 8 for setting therebetween, supporting plate 6 is fixed with leading screw 5, by its center borehole jack on leading screw 5, supporting plate 6 is in a cross with leading screw 5 to supporting plate 6, and supporting plate 6 is fixed on leading screw 5 by feed screw nut 7；Three carrying bolts 4 are uniformly fixed with along the axial direction of supporting plate 6, three support spiral shells 4 are located on the same circumference of supporting plate 6；Three carrying bolts 4 and feed screw nut 7 are respectively provided on two sides of supporting plate 6, i.e., three carrying bolts 4 are located at the side that leading screw 5 pulls up horse 3；When using, the claw type face of horse 3 and the lower surface of split object is drawn to be brought into close contact.
Operation principle：As shown in Figure 2, as a example by the valve retainer 2 on cylinder head 1 is dismantled using the present invention, by the lower surface of the valve retainer 2 on claw type face and the cylinder head 1 in split object, i.e. Fig. 2 of drawing horse 3 of the invention closely against, the lower end of three carrying bolts 4 is supported on the upper surface of cylinder head 1, monkey wrench rotating threaded shaft nut 7 is used again, slow reinforcing, so as to drive leading screw 5 to move axially, drives valve retainer 2 to be removed from cylinder head 1 while 5 axial displacement of leading screw by drawing horse 3.
Claims (2)
1. a kind of diesel valve seat and excessively wheel bearing and bearing pin bushing dismounting device, it is characterized in that：The drawing horse of provision for disengagement（3）By taper inner sleeve（8）It is connected to leading screw（5）End, supporting plate（6）By feed screw nut（7）It is fixed on leading screw（5）On, in supporting plate（6）Same circumference on along supporting plate（6）Axial direction be uniformly fixed with three carrying bolts（4）.
2. diesel valve seat according to claim 1 and excessively wheel bearing and bearing pin bushing dismounting device, it is characterized in that：Three described carrying bolts（4）And feed screw nut（7）It is respectively provided at supporting plate（6）Two sides on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510416463.0A CN106695666A (en) | 2015-07-16 | 2015-07-16 | Dismounting device for air valve seat, setting wheel bearing and hinge pin bushing of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510416463.0A CN106695666A (en) | 2015-07-16 | 2015-07-16 | Dismounting device for air valve seat, setting wheel bearing and hinge pin bushing of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106695666A true CN106695666A (en) | 2017-05-24 |
Family
ID=58899062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510416463.0A Pending CN106695666A (en) | 2015-07-16 | 2015-07-16 | Dismounting device for air valve seat, setting wheel bearing and hinge pin bushing of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106695666A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111469090A (en) * | 2020-05-19 | 2020-07-31 | 上海三一重机股份有限公司 | Shaft sleeve dismounting device |
| CN112140050A (en) * | 2019-06-26 | 2020-12-29 | 中核检修有限公司 | Valve seat dismounting tool |
| CN112677102A (en) * | 2020-12-14 | 2021-04-20 | 人本股份有限公司 | Bearing removing mechanism |
| 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 |
| CN114083489A (en) * | 2021-12-20 | 2022-02-25 | 山推工程机械股份有限公司 | Tool apron dismounting device |
-
2015
- 2015-07-16 CN CN201510416463.0A patent/CN106695666A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112140050A (en) * | 2019-06-26 | 2020-12-29 | 中核检修有限公司 | Valve seat dismounting tool |
| CN111469090A (en) * | 2020-05-19 | 2020-07-31 | 上海三一重机股份有限公司 | Shaft sleeve dismounting device |
| CN112677102A (en) * | 2020-12-14 | 2021-04-20 | 人本股份有限公司 | Bearing removing mechanism |
| 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 |
| CN114083489A (en) * | 2021-12-20 | 2022-02-25 | 山推工程机械股份有限公司 | Tool apron dismounting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |