A kind of camshaft lining of engine general dismantling device
Technical field
The utility model relates to a kind of dismantling devices for camshaft lining of engine.
Background technique
Currently, engine especially diesel engine camshaft general layout is mainly middle structure, cam shaft bush
It being mounted on body, camshaft is located in bush hole, and when engine operation, camshaft runs at high speed in cam shaft bush, because
This is very high to technical requirements such as the surface roughness of cam shaft bush, oilhole orientation, circularity and cylindricities, due to cam
Neck bush is limited in the intracorporal installation space of machine, and when installation needs to impose cam shaft bush certain initial pressure assembling force, therefore
In engine assembly and maintenance process, assembly or disassembly to cam shaft bush is usually all pacified using hand bumping mode
Assembly and disassembly are scratched cam shaft bush bore area easily, deform or even scrap, but also dismounting is inconvenient, labor
Fatigue resistance is big, and working efficiency is low.
Summary of the invention
The utility model provides a kind of general utility tool for camshaft lining of engine installation and removal, solves existing
During camshaft lining of engine installation and removal, cam shaft bush surface damage and problem on deformation, while it is strong to reduce labour
Degree improves working efficiency.
The technical solution adopted in the utility model is a kind of camshaft lining of engine general dismantling device, including manual liquid
Pressure draws horse, very heavy mounting assembly, spindle rod, bushing pressure head, pressure head positioning pin, positioning sleeve composition, manual hydraulic drawing horse and very heavy
Mounting assembly is installed in the body plane of front end, and spindle rod is located in cam shaft mounting hole, and bushing pressure head is installed on spindle rod,
Cam shaft bush is located on bushing pressure head, and spindle rod front end is contacted with manual hydraulic drawing horse, and main shaft rod rear end is equipped with positioning sleeve,
Pressure head positioning pin is located on bushing pressure head, and spindle rod is equipped with the spindle rod location hole of cam shaft bush installation radial position, cam
Neck bush is equipped with the circumferentially positioned concave block of cam shaft bush, and bushing pressure head is equipped on the circumferentially positioned convex block of bushing pressure head, cam
Neck bush cooperates location and installation in bushing pressure head by the circumferentially positioned concave block of cam shaft bush and the circumferentially positioned convex block of bushing pressure head
On, pressure head positioning pin sequentially passes through bushing pressure head and spindle rod location hole, and spindle rod front end is contacted with manual hydraulic drawing horse, main shaft
Rod rear end is equipped with positioning sleeve.
Above-mentioned camshaft lining of engine general dismantling device, very heavy mounting assembly by nut, studs, support,
Support fastening bolt composition, support are fixed in the body plane of front end by support fastening bolt, and studs is fixed on support
On, manual hydraulic drawing horse is installed on studs, is fixedly connected by nut with very heavy mounting assembly.
After above-mentioned camshaft lining of engine general dismantling device, manual hydraulic drawing horse and very heavy mounting assembly are installed on
In terminal body plane.
Since this dismantling device uses manual hydraulic drawing horse, slow pressure mode may be implemented to realize dismounting, camshaft
Bushing is pressed into during the mounting hole of body cam shaft bush, realized by bushing pressure head to the installation of cam shaft bush guiding and
Angle positioning, ensure that the good guidance and uniform force when cam shaft bush is pressed into body.Therefore, practical new using this
Type assembles and disassembles cam shaft bush surface without any damage and problem on deformation, and it is time saving and energy saving to realize, easy-to-operate.
Detailed description of the invention
Fig. 1 is that cam shaft bush dismantling device dismounts cross-sectional view on engine body.
Fig. 2 is the schematic three dimensional views of cam shaft bush dismantling device.
Fig. 3 is very heavy mounting assembly structural schematic diagram.
In figure, 1 is manual hydraulic drawing horse, and 2 be very heavy mounting assembly, and 3 be spindle rod, and 4 be bushing pressure head, and 5 is fixed for pressure head
Position pin, 6 be positioning sleeve, and 7 be cam shaft bush, and 8 be engine body, and 9 be nut, and 10 be studs, and 11 be support, and 12 are
Support fastening bolt, 13 be front end body plane, 14 is rear end body plane, 15 is the circumferentially positioned convex block of bushing pressure head, 16 is
The circumferentially positioned concave block of cam shaft bush, 17 spindle rod location holes.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
As shown in Figure 1, 2, 3, a kind of camshaft lining of engine general dismantling device, including it is manual hydraulic drawing horse 1, very heavy
Mounting assembly 2, spindle rod 3, bushing pressure head 4, pressure head positioning pin 5, positioning sleeve 6 form, manual hydraulic drawing horse 1 and very heavy support group
Part 2 is installed in front end body plane 13, and spindle rod 3 is located in cam shaft mounting hole, and spindle rod 3 is pacified equipped with cam shaft bush 7
The spindle rod location hole 17 of radial position is filled, cam shaft bush 7 is equipped with the circumferentially positioned concave block 16 of cam shaft bush, bushing pressure head
4 are equipped on the circumferentially positioned convex block 15 of bushing pressure head, and cam shaft bush 7 passes through the circumferentially positioned concave block 16 of cam shaft bush and bushing
The circumferentially positioned convex block 15 of pressure head cooperates location and installation on bushing pressure head 4, and bushing pressure head 4 is installed on spindle rod 3, pressure head positioning
Pin 5 sequentially passes through bushing pressure head 4 and spindle rod location hole 17, and 3 front end of spindle rod is contacted with manual hydraulic drawing horse 1, after spindle rod 3
End is equipped with positioning sleeve 6.
Above-mentioned very heavy mounting assembly 2 is made of nut 9, studs 10, support 11, support fastening bolt 12, support
11 are fixed in front end body plane 13 by four support fastening bolts 12, and two studs 10 are fixed on support 11,
Manual hydraulic drawing horse 1 is installed on studs 10, and manual hydraulic drawing horse 1 connects by the way that nut 9 and very heavy mounting assembly 1 are fixed
It connects.
Above-mentioned manual hydraulic drawing horse 1 and very heavy mounting assembly 2 can also be installed in rear end body plane 14.
By taking six-in-line diesel engine as an example, when work:
By manual hydraulic drawing horse 1 and the assembly of very heavy support group 2 in front end body plane 13,3 front end of spindle rod and hand
Hydrodynamic pressure draws horse 1 to contact;
Each road cam shaft bush 7 is passed through into the circumferentially positioned concave block 16 of cam shaft bush and the circumferentially positioned convex block of bushing pressure head
15 cooperation location and installations are on bushing pressure head 4;
When spindle rod 3 is sequentially passed through each road cam shaft mounting hole, it is sequentially loaded into the bushing pressure equipped with cam shaft bush 7
First 4;
Positioning sleeve 6 is installed in last 1 (the 7th) camshaft hole is installed;
The positioning for adjusting each road cam shaft bush 7 and oilhole, is packed into each pressure head positioning pin 5:
Manual hydraulic drawing horse 1 is operated, starts camshaft bushing 7, when 7 oilhole of cam shaft bush and engine body
It when oilhole on 8 is aligned perforation, that is, has been press-fit into place, has stopped press fitting, assembly is completed.
Continue to operate manual hydraulic drawing horse 1, spindle rod 3 is exited into each road camshaft toward opposite direction axial movement operation
When mounting hole, bushing pressure head 4 is successively removed;
If you need to dismantle cam shaft bush 7, then according to above-mentioned steps, manual hydraulic drawing horse 1 is operated, until cam shaft bush 7
Until being forced out each cam shaft bush hole of engine body 8 completely, disassembly is completed.
Above-mentioned pressure head positioning pin 5 realizes the assembly of spindle rod 3 and bushing pressure head 4, to realize that cam shaft bush 7 is starting
Axial movement dismounting in 8 camshaft hole of machine body, ensure that its good guiding and uniform force.Therefore, using this tool
It fills, tear 7 surface of cam shaft bush open without any damage and problem on deformation.Manual hydraulic drawing horse 1 uses roller bearing and nut
It is pressed screw rod fit structure, also may be implemented to apply pressure to this dismantling device spindle rod 3, and spindle rod 3 then passes through pressure head
Positioning pin 5 and bushing pressure head 4 realize assembly positioning;Spindle rod 3 guarantees be pressed by very heavy mounting assembly 2 and positioning sleeve 6
The stabilization of Shi Fangxiang and angle.Therefore, to when operating manual hydraulic drawing horse 1, spindle rod 3 will drive assembly on bushing pressure head 4
Cam shaft bush 7 realize axial displacement together, to be press-fitted into intracorporal each 7 mounting hole of road cam shaft bush of machine.Lining
The Position Design for covering pressure head 4 can guarantee that the stabilization of angle direction when cam shaft bush 7 is pressed, guide end size are less than camshaft
Bushing 7 inner hole about 0.20mm, the mounting hole for the 8 upper camshaft bushing 7 of body that the end size of bushing pressure head 4 is then less than
0.20mm, the then mounting hole for the cam shaft bush 7 for allowing bushing pressure head 4 to may pass through on engine body 8.Therefore, when operation is manual
When hydraulic screw extractor 1, it can be aligned, that is, be installed with 8 upper oil hole of engine body by the oilhole on observation cam shaft bush 7.
Such as because angle and oilhole are unjustified, each road cam shaft bush 7 need to be dismantled, then continues to operate manual hydraulic drawing horse 1, by cam bushing
Set 7 extrudes each cam shaft bush mounting hole of engine body 8, and disassembly is completed.Cam shaft bush 7 after disassembly can still continue to make
With.
This dismantling device is fixedly connected using manual hydraulic drawing horse 1 with very heavy mounting assembly 2, and slowly axial apply may be implemented
Pressure mode dismounts and mounts dress or disassembly cam shaft bush 7 to realize, due to having good steering capability and uniform force, dress
It tears 7 surface of cam shaft bush open and operates time saving and energy saving, safe ready without any damage and problem on deformation, and can be widely applied to send out
The fields such as the production of motivation small lot, manufacture and after-sales service.