CN108843474A - The high-pressure oil pump provision for disengagement of diesel engine and method - Google Patents
The high-pressure oil pump provision for disengagement of diesel engine and method Download PDFInfo
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- CN108843474A CN108843474A CN201810648587.5A CN201810648587A CN108843474A CN 108843474 A CN108843474 A CN 108843474A CN 201810648587 A CN201810648587 A CN 201810648587A CN 108843474 A CN108843474 A CN 108843474A
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- pressure oil
- oil pump
- operating platform
- compressor arm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/48—Assembling; Disassembling; Replacing
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of high-pressure oil pump provisions for disengagement of diesel engine, including operating platform, operating platform turnover mechanism, operating platform locking mechanism, roller compression mechanism and pedestal, operating platform is located in pedestal both ends, operating platform turnover mechanism is symmetricly set on pedestal upper end and operating platform both ends, operating platform locking mechanism is symmetricly set between pedestal upper end and operating platform one end, and roller compression mechanism is vertically fixed on the downside center of operating platform.The method of the present invention includes：1）Operating platform overturning is locked in state vertically downward for 180 °, removes the idler wheel, tappet and plunger of high-pressure oil pump, 2）High-pressure oil pump is overturn to 180 ° again and is locked in state vertically upward, removes the plunger guide bush of high-pressure oil pump.The device of the invention structure is simple, method is easy, can be very convenient and safely dismantles high-pressure oil pump, easily operated, save trouble and labor, improves the safety and disassembly work efficiency of high-pressure oil pump disassembly.
Description
Technical field
The present invention relates to a kind of maintenance unit of diesel engine, in particular to one kind conveniently dismounts high-pressure fuel pump of diesel engine
The device and method of inner body belongs to engine maintenance technical field.
Background technique
The high-pressure oil pump of diesel engine is for the important component to diesel engine cylinder block conveying fuel oil, in diesel engine especially ship
There is surface jaundice with the plunger that shipowner feeds back high-pressure oil pump plunger matching parts in the long-term use process of diesel engine, is often connected to,
Surface galling and inordinate wear and other issues.The reason is that shipowner is to save cost, low-quality heavy oil is used for a long time（HFO）,
Caused by improper to peripheral system Operation and Maintenance, and shipowner is being related to heavy oil combustion（HFO）When the design of system, it is negligent of to combustion
The heat-insulated protection of oil pipe line and to heavy oil（HFO）The Oil-temperature control of heating unit, is negligent of to heavy oil（HFO）At the purification of system
Reason can not normally guarantee medium seed diesel engine heavy oil combustion after causing real ship to operate always（HFO）Into machine temperature control, can not
Guarantee that fuel oil controls between 10-15cSt into machine viscosity.There is plunger surface jaundice, surface galling, kills, peels etc. extremely
Wear phenomenon needs to dismantle high-pressure oil pump and repairs, seriously affects the normal use of marine diesel.
When high-pressure oil pump detachable maintaining, need to remove in high-pressure oil pump cooperation precision is high, is completely embedded plunger matching parts,
Tappet, spring base, spring and plunger guide bush.When disassembly, its idler wheel is fixed on maintenance platform upward first, is then exerted oneself
Down-pressure roller, then remove tappet bayonet lock and release tappet constraint.At this moment, as directly removed the pressure to idler wheel, in high-pressure oil pump
Under the action of pressure spring reset force, tappet, spring base and spring can go out high-pressure oil pump shell, and there are great security risks.?
After having removed tappet, also need for high-pressure oil pump overturning to be once again secured on maintenance platform for 180 °, high-pressure oil pump is restored to fuel-displaced
The reset condition of valve upward, could dismantle the plunger guide bush in the high-pressure oil pump other end, cumbersome, work efficiency is lower.
Summary of the invention
The object of the present invention is to provide a kind of high-pressure oil pump provisions for disengagement for operating time saving and energy saving, highly-safe diesel engine
And method.
The present invention is achieved by the following technical programs：
A kind of high-pressure oil pump provision for disengagement of diesel engine, including operating platform, operating platform turnover mechanism, operating platform lock machine
Structure, roller compression mechanism and pedestal, the pedestal both ends are A-shaped, respectively on the ground by the support of symmetrically arranged battered leg,
Draw-off tray both ends horizontal is fixed in the middle of the base；Operating platform is located in pedestal both ends, including is equipped with center hole, all around
Have the plate of rib and be separately fixed at the flange group of center hole two sides, the flange group include respectively with two kinds of model high pressures
The corresponding upper flange of oil pump and lower flange ring, upper flange and lower flange ring are fixed on plate one on the other；Operating platform turns over
Rotation mechanism is symmetricly set on pedestal upper end and operating platform both ends, operating platform locking mechanism be symmetricly set on pedestal upper end and
Between operating platform one end, roller compression mechanism is vertically fixed on the downside center of operating platform.
The purpose of the present invention can also be further realized by following technical measures.
Further, the operating platform turnover mechanism includes angle square seat, support base and overturning handle, angle square seat end face phase
It is respectively and vertically fixed at the upside at pedestal both ends over the ground, support base is located on the inside of angle square seat, is respectively and vertically fixed at operating platform
On both ends；Support base includes vertical plate and support tube, and the support tube passes through vertical plate central horizontal and is fixed on vertical plate, vertical plate and angle
The vertical plate end face of rod support is opposite；Overturning handle is in inverted L-shaped, and the horizontal ends for overturning handle sequentially pass through vertical panel and support tube,
And it is fixedly connected with support tube.
Further, the operating platform locking mechanism includes two groups of snap lock rationed marketings and is arranged on the vertical plate of support base
Several lock holes, every group of two snap lock rationed marketings are horizontally fixed on respectively on the vertical panel of angle square seat, the pin of snap lock rationed marketing
Body head is corresponding with several locking hole sites uniformly distributed in the vertical plate center circle of operating platform both ends support base.
Further, roller compression mechanism is arranged on the downside of the center of operating platform, including horizontal bar, two screw rods and pressure
Tight bar combination, screw rod upper end are separately fixed on operating platform, and screw rod lower end is fixedly connected with horizontal bar both ends respectively；Compressor arm
Combined upper end is resisted against on the idler wheel for the high-pressure oil pump lower end that need to be dismantled, and lower end is vertical with horizontal bar center connects for compressor arm combination
It connects.The compressor arm combination includes compressor arm, roller compression seat and plane bearing, and roller compression seat is in a groove shape, compressor arm lower end
It is connect by screw thread with horizontal bar center, compressor arm upper end end and the bottom centre of roller compression seat are hinged, and plane bearing is set
It sets between roller compression seat downside and the flange of compressor arm upper end.The trough rim upper end of roller compression seat two sides is equipped with V-shaped groove
Mouthful.
A kind of method of the high-pressure oil pump provision for disengagement of diesel engine, includes the following steps：
1）High-pressure oil pump right angle setting is on the operational platform
The idler wheel of high-pressure oil pump is passed through to the center hole of operating platform downward, the mounting flange in the middle part of high-pressure oil pump passes through several
Fastener is fixed on operating platform center；
2）High-pressure oil pump overturning is locked in state vertically downward for 180 °
2 snap lock rationed marketings that outer pulling process platform is diagonally held respectively, shank head are detached from corresponding lock hole；Overturn handle rotation
Turn 180 °, so that the idler wheel of roller compression mechanism and high-pressure oil pump is vertically upward；Unclamp aforementioned 2 snap lock rationed marketings, shank
Head puts in corresponding lock hole, and operating platform is made to be locked in the position of roller compression mechanism upward；
3）Remove the idler wheel of high-pressure oil pump, the plunger of tappet and plunger matching parts
Compressor arm is rotated forward with spanner, compressor arm moves down, and pushes high-pressure oil pump by plane bearing pushing rolling wheels support base
Idler wheel；The tappet bayonet lock and sealing ring for removing high-pressure oil pump housing side, release the constraint of tappet；Then it is rotated backward with spanner
Compressor arm, compressor arm move up, and remove idler wheel, and tappet pops up under the action of the spring；Continue to rotate backward compressor arm with spanner,
Compressor arm continues to move up, until can be taken out tappet, spring base, spring and plunger one by one with hand；
4）High-pressure oil pump is overturn to 180 ° again and is locked in state vertically upward
2 snap lock rationed marketings that outer pulling process platform is diagonally held respectively again, shank head are detached from corresponding lock hole；It revolves again
Turn 180 ° of handle of overturning, roller compression mechanism is vertically downward；2 snap lock rationed marketings above-mentioned are unclamped, shank head puts in correspondence
Lock hole, so that operating platform is locked in the reset condition of roller compression mechanism vertically downward, then remove high-pressure oil pump go out
Oil valve；
5）Remove the plunger guide bush of high-pressure oil pump
After the plug screw and sealing ring of removing high-pressure oil pump shell two sides with spanner, in the spiro pluging hole of taking-up high-pressure oil pump shell two sides
The pin being connected with plunger guide bush；Then according to the model of high-pressure oil pump, the upper flange of fixed operation platform companion flange group is removed
With lower flange ring, upper flange and lower flange ring are placed on one on the other on the top of plunger guide bush, fasten spiral shell at least two
Nail is fixed on plunger guide bush top across upper flange；The corresponding spiral shell of upper flange outer rim is screwed into at least two housing screw again
In pit, housing screw lower end end withstands on the upside of lower flange ring；Continue to tighten housing screw, is lifted off down upper flange gradually
Flange ring, upper flange pulls the plunger guide bush of connection fixed thereto by 2 fastening screws, so that plunger guide bush is pulled out high pressure
Oil pump case completes the disassembly of high-pressure oil pump.
The device of the invention structure is simple, method is easy, and high-pressure oil pump can be vertically fixed on to the center of operating platform, leads to
Cross operating platform turnover mechanism successively 180 ° of turning operation platforms twice, and with operating platform locking mechanism lock operation platform,
Consequently facilitating splitting out the plunger and plunger guide bush of idler wheel, tappet, plunger matching parts respectively from the both ends of high-pressure oil pump.Roller compression machine
The compressor arm of structure, which first moves down, pushes down idler wheel to dismantle tappet, then slowly moves up release idler wheel, avoids that spring and spring occurs
The safety accident that seat pops up suddenly.Method of the invention can be very convenient and safely dismantles high-pressure oil pump, easily operated, province
Thing is laborsaving, improves the safety and disassembly work efficiency of high-pressure oil pump disassembly.
The advantages and features of the present invention will be illustrated and explained by the non-limitative illustration of preferred embodiment below,
These embodiments only provide as an example referring to attached drawing.
Detailed description of the invention
Fig. 1 is the main view of high-pressure oil pump；
Fig. 2 is the structure diagram of high-pressure oil pump；
Fig. 3 is that high-pressure oil pump is mounted on structural schematic diagram of the invention；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is the top view of Fig. 3；
Fig. 6 is the structural schematic diagram that operating platform of the invention overturns 180 °.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As depicted in figs. 1 and 2, high-pressure oil pump 100 includes tappet 1, plunger 2, plunger guide bush 3, flange 4., delivery valve 5, goes out
Oil valve mounting screw 6, flange mounting screw 7, spring 8., spring base 9, sealing ring 10, tappet bayonet lock 11, high-pressure oil pump shell
12, idler wheel 13 and roller pin 14, idler wheel 13 are supported in the lower end of tappet 1 by roller pin 14, and tappet 1 is located at high pressure oil pump case
In the lower end of body 12, tappet bayonet lock 11 passes through high-pressure oil pump shell 12 and puts in the border groove of tappet 1, and tappet 1 is locked in height
In pressure oil pump case 12.The upper and lower side of spring 8 is respectively supported between 3 lower end of plunger guide bush and spring base 9, and plunger guide bush 3 is embedding
Into the upper end of pressure oil pump case 12,9 sets of spring base on 2 lower end of plunger, 2 lower end of plunger is resisted against the upper end of tappet 1, plunger 2
Upper end is injected in plunger guide bush 3, and 3 upper end of plunger guide bush is fixed on high-pressure oil pump shell by the several flange mounting screws 7 of circle
On 12 top surface, delivery valve 5 is fixed on the top surface of plunger guide bush 3 by the several delivery valve mounting screws 6 of circle.
As shown in Fig. 3~Fig. 6, the device of the present embodiment includes operating platform 10, operating platform turnover mechanism 20, operates and put down
Platform locking mechanism 30, roller compression mechanism 40 and pedestal 50,50 both ends of pedestal are A-shaped, respectively by being symmetrical arranged, using fashioned iron
The manufactured support of battered leg 501 on the ground, improves the stability of pedestal 50,502 both ends horizontal of draw-off tray is weldingly fixed on pedestal
On 50 middle parts.
As shown in figure 5, operating platform 10 is located in 50 both ends of pedestal, including rib is with equipped with center hole 101, surrounding
102 plate 103 and the flange group for being separately fixed at 101 two sides of center hole, 2 flange groups include respectively with L27/38,
The corresponding upper flange 104 of two kinds of different model high-pressure oil pumps of L32/40 and lower flange ring 105, upper flange 104 and lower flange ring 105
It is fixed on and is fixed on plate 101 by fastening screw nut group 106 one on the other.Flange group is as dismounting plunger guide bush 3
Important tool, when use on plunger guide bush 3；It is fixed on operating platform 10 when not used, prevents its loss.
As shown in Figure 3 and Figure 6, operating platform turnover mechanism 20 is symmetricly set on 10 both ends of 50 upper end of pedestal and operating platform
On, including angle square seat 201, support base 202 and overturning handle 203,201 end face of angle square seat is relatively respectively and vertically fixed at pedestal
The upside at 50 both ends, support base 202 are located at 201 inside of angle square seat, are respectively perpendicular and are weldingly fixed on 10 both ends of operating platform.Branch
Supportting seat 202 includes vertical plate 2021 and support tube 2022, and support tube 2022 passes through 2021 central horizontal of vertical plate and is weldingly fixed on vertical plate
On 2021, vertical plate 2021 is opposite with 2011 end face of vertical panel of angle square seat 201.Overturning handle 203 is in inverted L-shaped, overturns handle
Horizontal ends sequentially pass through vertical panel 2011 and support tube 2022, connect by the way that flat key 204 and end plates 205 and support tube 2022 are fixed
It connects.
As shown in figure 5, operating platform locking mechanism 30 is symmetricly set between 10 one end of 50 upper end of pedestal and operating platform,
Including two groups of snap lock rationed marketings 301 and 8 lock holes 2023 being arranged on the vertical plate 2021 of support base 202, every group of 2 elasticity
Locking pin 301 is horizontally fixed on respectively on the vertical panel 2011 of angle square seat 201, the shank head of snap lock rationed marketing 301 and operation
8 uniformly distributed 2023 positions of lock hole are corresponding in 2021 center circle of vertical plate of 10 both ends support base 202 of platform, make operating platform 10
It can be locked in and just set and overturn on 180 ° of inverted two kinds of positions.10 liang of diagonal snap locks of operating platform are generally only used when use
Rationed marketing 301, another two snap lock rationed marketing 301 is as spare.
As shown in Figure 3 and Figure 6, roller compression mechanism 40 is arranged on the downside of the center of operating platform 10, including horizontal bar
401, two screw rods 402 and compressor arm combination 403, horizontal bar 401 is obliquely installed along 10 diagonal direction of operating platform, screw rod 402
Upper end passes through nut 404 respectively and is fixed in the diagonal direction of operating platform 10, and lower end passes through nut 404 and horizontal bar respectively
401 both ends are fixedly connected.The upper end of compressor arm combination 403 is resisted against on the idler wheel 13 for 100 lower end of high-pressure oil pump that need to be dismantled, under
Hold connect vertical with 401 center of horizontal bar.Compressor arm combination 403 includes compressor arm 4031, roller compression seat 4032 and plane axis
4033 are held, roller compression seat 4032 is in a groove shape, and 4031 lower end of compressor arm is connected through a screw thread with 401 center of horizontal bar, compressor arm
4031 upper ends end and the bottom centre of roller compression seat 4032 are hinged, and plane bearing 4033 is arranged under roller compression seat 4032
Between the flange of 4031 upper end of side and compressor arm；The trough rim upper end of 4032 two sides of roller supporting seat is equipped with V-shaped groove mouth 4034.This
When rotating compressor arm 4031, roller supporting seat 4032 can only be gone up and down without can rotate the structure of sample, the two sides of V-shaped groove mouth 4034
The idler wheel 13 of the tight high-pressure oil pump 100 of face pressure.
A kind of method of the high-pressure oil pump provision for disengagement of diesel engine, includes the following steps：
1）High-pressure oil pump 100 is vertically mounted on operating platform 10
The idler wheel 13 of high-pressure oil pump 100 is passed through to the center hole 101 of operating platform 10, the peace at 100 middle part of high-pressure oil pump downward
Dress flange 15 is fixed on 10 center of operating platform by 4 fasteners 16.
2）The overturning of high-pressure oil pump 100 is locked in state vertically downward for 180 °
2 snap lock rationed marketings 301 that outer pulling process platform 100 is diagonally held respectively, shank head are detached from corresponding lock hole 2023.
It overturns handle 203 and rotates 180 °, so that the idler wheel 13 of roller compression mechanism 40 and high-pressure oil pump 100 is vertically upward.Before release
2 snap lock rationed marketings 301 are stated, shank head puts in corresponding lock hole 2023, operating platform 10 is made to be locked in roller compression machine
The position of structure 40 upward.
3）Remove the idler wheel 13 of high-pressure oil pump 100, the plunger 2 of tappet 1 and plunger matching parts
Compressor arm 4031 is rotated forward with spanner, compressor arm 4031 moves down, and passes through 4033 pushing rolling wheels support base of plane bearing
4032 push the idler wheel 13 of high-pressure oil pump 100.With regard to the tappet bayonet lock 11 and sealing ring 10 of dismountable 12 side of high-pressure oil pump shell,
Release the constraint of tappet 1；Then compressor arm 4031 is rotated backward with spanner, compressor arm 4031 moves up, and removes idler wheel 13, tappet 1
It is popped up under the effect of spring 8；Continue to rotate backward compressor arm 4031 with spanner, compressor arm 4031 continues to move up, until can
Tappet 1, spring base 9, spring 8 and plunger 2 to be taken out one by one with hand.
4）High-pressure oil pump 100 is overturn 180 ° again and is locked in state vertically upward
2 diagonal snap lock rationed marketings 301 of outer pulling process platform both ends two are distinguished again, and shank head is detached from corresponding lock hole
2023.180 ° of rotary turning handles 203 again, roller compression mechanism 40 is vertically downward.Unclamp 2 snap lock rationed marketings above-mentioned
301, shank head puts in corresponding lock hole 2023, and operating platform 10 is made to be locked in the original of roller compression mechanism 40 vertically downward
Then beginning state removes the delivery valve 5 of high-pressure oil pump 100.
5）Remove the plunger guide bush of high-pressure oil pump
After the plug screw and sealing ring of removing 12 two sides of high-pressure oil pump shell with spanner, in the spiro pluging hole of 12 two sides of high-pressure oil pump shell
The pin being connected with plunger guide bush takes out, and then according to the model of high-pressure oil pump 100, removes 10 companion flange group of fixed operation platform
Upper flange 103 and lower flange ring 104, upper flange 103 and lower flange ring 104 are placed on plunger guide bush 3 one on the other
On top, upper flange 103 is passed through at least two fastening screw 16 and is fixed on 3 top of plunger guide bush.It is compressed again at least two
Screw 17 is screwed into the corresponding threaded hole of 103 outer rim of upper flange, and 17 lower end end of housing screw withstands on the upper of lower flange ring 104
Side；Continue to tighten housing screw 17, upper flange 103 is made gradually to be lifted off lower flange ring 104, upper flange 103 passes through 2 fastening screws
16 pull the plunger guide bush 3 of connection fixed thereto, so that plunger guide bush 3 is pulled out high-pressure oil pump shell 12, complete high-pressure oil pump
100 disassembly.
After part in high-pressure oil pump shell 12 is dismantled, the service condition for disassembling part is gone through, is used
New part exchanging after part of damage, ressembles high-pressure oil pump according to the reverse order of disassembly.
In addition to the implementation, the present invention can also have other embodiments, all to use equivalent substitution or equivalent transformation shape
At technical solution, be all fallen within the protection domain of application claims.
Claims (7)
1. a kind of high-pressure oil pump provision for disengagement of diesel engine, including pedestal, the pedestal both ends are A-shaped, respectively by symmetrical
On the ground, draw-off tray both ends horizontal is fixed in the middle of the base for the battered leg support of setting；It is characterized in that, further including that operation is flat
Platform, operating platform turnover mechanism, operating platform locking mechanism and roller compression mechanism, operating platform are located in pedestal both ends, packet
It includes and is with the plate of rib equipped with center hole, surrounding and is separately fixed at the flange group of center hole two sides, the flange group
Including upper flange corresponding with two kinds of model high-pressure oil pumps and lower flange ring respectively, upper flange and lower flange ring are solid one on the other
It is scheduled on plate；Operating platform turnover mechanism is symmetricly set on pedestal upper end and operating platform both ends, and operating platform locks machine
Structure is symmetricly set between pedestal upper end and operating platform one end, and roller compression mechanism is vertically fixed in the downside of operating platform
The heart.
2. the high-pressure oil pump provision for disengagement of diesel engine as described in claim 1, it is characterised in that：The operating platform tipper
Structure includes that angle square seat, support base and overturning handle, angle square seat end face are relatively respectively and vertically fixed at the upside at pedestal both ends, is propped up
Support seat is located on the inside of angle square seat, is respectively and vertically fixed on operating platform both ends；Support base includes vertical plate and support tube, the branch
Support cylinder passes through vertical plate central horizontal and is fixed on vertical plate, and vertical plate end face is opposite with angle square seat for vertical plate；Overturning handle is in inverted L
Shape, the horizontal ends for overturning handle sequentially pass through vertical panel and support tube, and are fixedly connected with support tube.
3. the high-pressure oil pump provision for disengagement of diesel engine as described in claim 1, it is characterised in that：The operating platform locks machine
Structure includes two groups of snap lock rationed marketings and several lock holes for being arranged on the vertical plate of support base, every group of 2 snap lock rationed marketings difference
It is horizontally fixed on the vertical panel of angle square seat, the shank head of snap lock rationed marketing and the vertical plate center of operating platform both ends support base
Uniformly distributed several locking hole sites are corresponding on circle.
4. the high-pressure oil pump provision for disengagement of diesel engine as described in claim 1, it is characterised in that：The setting of roller compression mechanism exists
The center downside of operating platform, including horizontal bar, two screw rods and compressor arm combination, screw rod upper end is separately fixed at operating platform
On, screw rod lower end is fixedly connected with horizontal bar both ends respectively；The upper end of compressor arm combination is resisted against under the high-pressure oil pump that need to be dismantled
On the idler wheel at end, lower end is vertical with horizontal bar center connect for compressor arm combination.
5. the high-pressure oil pump provision for disengagement of diesel engine as claimed in claim 4, it is characterised in that：The compressor arm combines
Compressor arm, roller compression seat and plane bearing, roller compression seat are in a groove shape, and compressor arm lower end and horizontal bar center are connected by screw thread
Connect, compressor arm upper end end and the bottom centre of roller compression seat are hinged, plane bearing setting in roller compression seat downside and
Between the flange of compressor arm upper end.
6. the high-pressure oil pump provision for disengagement of diesel engine as claimed in claim 5, it is characterised in that：The slot of roller compression seat two sides
Side upper end is equipped with V-shaped groove mouth.
7. a kind of method of the high-pressure oil pump provision for disengagement using diesel engine as described in claim 1, it is characterised in that：Including
Following steps：
1）High-pressure oil pump right angle setting is on the operational platform
The idler wheel of high-pressure oil pump is passed through to the center hole of operating platform downward, the mounting flange in the middle part of high-pressure oil pump passes through several
Fastener is fixed on operating platform center；
2）High-pressure oil pump overturning is locked in state vertically downward for 180 °
2 snap lock rationed marketings that outer pulling process platform is diagonally held respectively, shank head are detached from corresponding lock hole；Overturn handle rotation
Turn 180 °, so that the idler wheel of roller compression mechanism and high-pressure oil pump is vertically upward；Unclamp aforementioned 2 snap lock rationed marketings, shank
Head puts in corresponding lock hole, and operating platform is made to be locked in the position of roller compression mechanism upward；
Remove the idler wheel of high-pressure oil pump, the plunger of tappet and plunger matching parts
Compressor arm is rotated forward with spanner, compressor arm moves down, and pushes high-pressure oil pump by plane bearing pushing rolling wheels support base
Idler wheel；The tappet bayonet lock and sealing ring for removing high-pressure oil pump housing side, release the constraint of tappet；Then it is rotated backward with spanner
Compressor arm, compressor arm move up, and remove idler wheel, and tappet pops up under the action of the spring；Continue to rotate backward compressor arm with spanner,
Compressor arm continues to move up, until can be taken out tappet, spring base, spring and plunger one by one with hand；
4）High-pressure oil pump is overturn to 180 ° again and is locked in state vertically upward
2 snap lock rationed marketings that outer pulling process platform is diagonally held respectively again, shank head are detached from corresponding lock hole；It revolves again
Turn 180 ° of handle of overturning, roller compression mechanism is vertically downward；2 snap lock rationed marketings above-mentioned are unclamped, shank head puts in correspondence
Lock hole, so that operating platform is locked in the reset condition of roller compression mechanism vertically downward, then remove high-pressure oil pump go out
Oil valve；
5）Remove the plunger guide bush of high-pressure oil pump
After the plug screw and sealing ring of removing high-pressure oil pump shell two sides with spanner, in the spiro pluging hole of taking-up high-pressure oil pump shell two sides
The pin being connected with plunger guide bush removes the upper flange of fixed operation platform companion flange group then according to the model of high-pressure oil pump
With lower flange ring, upper flange and lower flange ring are placed on one on the other on the top of plunger guide bush, fasten spiral shell at least two
Nail is fixed on plunger guide bush top across flange；The corresponding screw thread of upper flange outer rim is screwed into at least two housing screw again
Kong Zhong, housing screw lower end end withstand on the upside of lower flange ring；Continue to tighten housing screw, upper flange is made gradually to be lifted off laxative remedy
Lan Huan, upper flange pulls the plunger guide bush of connection fixed thereto by 2 fastening screws, so that plunger guide bush is pulled out high pressure oil
Pump case completes the disassembly of high-pressure oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810648587.5A CN108843474B (en) | 2018-06-22 | 2018-06-22 | Device and method for disassembling high-pressure oil pump of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810648587.5A CN108843474B (en) | 2018-06-22 | 2018-06-22 | Device and method for disassembling high-pressure oil pump of diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108843474A true CN108843474A (en) | 2018-11-20 |
| CN108843474B CN108843474B (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810648587.5A Active CN108843474B (en) | 2018-06-22 | 2018-06-22 | Device and method for disassembling high-pressure oil pump of diesel engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161126A (en) * | 2021-12-20 | 2022-03-11 | 河南省正龙煤业有限公司 | Dismounting device of large water pump and using method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114161126A (en) * | 2021-12-20 | 2022-03-11 | 河南省正龙煤业有限公司 | Dismounting device of large water pump and using method thereof |
| CN114161126B (en) * | 2021-12-20 | 2022-11-15 | 河南省正龙煤业有限公司 | Dismounting device of large water pump and using method thereof |
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| CN108843474B (en) | 2021-04-30 |
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