CN209698771U - Diesel engine cylinder head air valve grinder - Google Patents

Abstract

It is to overcome existing grind to diesel engine cylinder head air inlet and exhaust valve to repair, hand lapping heavy workload effect is low, time-consuming the utility model discloses a kind of diesel engine cylinder head air valve grinder；The existing valve tool that pneumatically grinds does not adapt to what the shortcomings that grinding of large-scale diesel engine cylinder head air valve needs provided, and the camshaft for being driven by a motor rotation is horizontally installed on pedestal, multiple cams are equipped on camshaft；It is located at the upper parallel of camshaft on pedestal and is supported by two stringers, the air valve lower end and cam being placed on the diesel engine cylinder head on stringer corresponds.The air valve on diesel engine cylinder head or more is jacked up and put down with moving cam since camshaft rotation is dynamic make grinding movement, once can more diesel engine cylinder heads of simultaneous grinding all air valves, without artificial pressing operation, only need starting motor push button that can work, labor intensity is significantly reduced, with hand lapping than improving work efficiency decades of times；The machine structure is simple, makes small investment, applied widely, easy to promote and utilize.

Description

Diesel engine cylinder head air valve grinder

Technical field

The utility model belongs to maintenance tool, and the air inlet and exhaust valve of specifically a kind of pair large-scale diesel engine cylinder head is ground Grind the grinder of reparation.

Background technique

When the large-sized diesel motor being equipped on to tugboat places under repair, need to the air inlet and exhaust valve of diesel engine cylinder head into Row grinding is repaired.Current grinding reparation is mostly that the air valve supported by compressed spring is pressed with manpower using carrying out by hand It operates, carries out one by one until all air valves on a diesel engine cylinder head are all ground by a loosening and a tightening.It grinds one by one by hand The heavy workload of mill, low efficiency damage more serious air valve if encountering, will spend more expense longer time.

What existing market was sold pneumatically grinds valve tool, the manual pressure of people can be replaced to be supported by compressed spring with machine Air valve grinding, hand-held tool is ground one by one with the opposite single air valve of sucker when use, although can mitigate the labour of manual pressure Intensity, but be also to be ground one by one to single air valve, and the tool is both for small-sized petrol and diesel oil machine design, and it is large-scale The air valve of petrol and diesel oil power-equipment is more much larger than small size gasoline diesel engine, if with the existing valve tool that grinds to large-sized power plant Air valve grinding, spoilage is especially high, using being eliminated afterwards several times, or must return in hand lapping；If being ground described in Valve tool design obtains too big, and manpower mentions too laborious, but also to be ground one by one to air valve, effect does not improve more yet It is few.

The air valve of hand lapping diesel engine cylinder head shares 48 under normal circumstances to be equipped with two diesel engines on a tugboat For air valve, needs 4-5 people to spend 3 days time that can just be fully completed grinding and repair, so low working efficiency can not adapt to The needs of large-sized power repair of machine.

Summary of the invention

Technical problem to be solved in the utility model is that the existing air inlet and exhaust valve to large-scale diesel engine cylinder head is overcome to repair Grinding, manual heavy workload and low efficiency；The existing valve tool that pneumatically grinds does not adapt to the grinding of large-scale diesel engine cylinder head air valve The shortcomings that needing provides a kind of diesel engine cylinder head air valve grinder.

In order to solve the above problems existing in the present technology, the utility model adopts the following technical solutions realization: In On fixed pedestal, it is horizontally installed with the camshaft for driving rotation respectively by two motors, is divided on two camshaft disposed in parallel It is not cased with multiple cams rotated with axis；It is located at the top of camshaft on pedestal, parallel support there are two of suitable cam axis direction Stringer, the salient point of the cam deviates from the center line for being placed in the diesel engine cylinder head air valve body of rod to be ground on stringer, with air valve Body of rod lower end be arranged in a one-to-one correspondence, when cam salient point turn to lower section when, the inverted cone surface of air valve just falls on air valve On valve seat.

The utility model also has following technical characteristic:

The stringer for placing diesel engine cylinder head is to be respectively perpendicular to be fixed with externally threaded vertical in the quadrangle of the pedestal Bar, the vertical core that two stringer ends are arranged in are through respectively in corresponding upright bar, are clamped in the solid up and down of stringer with nut It is fixed；

On two stringers, the seat board of diesel engine cylinder head bottom surface placement, seat are equipped with perpendicular to stringer and are suitble in pairs The both ends of plate ride over be fixedly mounted above two stringers respectively；

Fixed installation of the seat board on stringer is that opposite be cased with can be along stringer length direction respectively on two stringers Mobile sliding sleeve, the seat board both ends of the mounted in pairs, is separately fixed on corresponding sliding sleeve, and screw passes through sliding sleeve side wall On screw hole, hold out against on stringer；

It is respectively equipped with the baffle of setting in the opposite exterior lateral sides of the pairs of seat board, the both ends of baffle are equipped with perpendicular to its plate face Open-work, be parallel to stringer screw rod pass through each pair of baffle on open-work, with nut be screwed in two opposing flaps two outside；

The cam is mounted on camshaft, is to have guiding strong along its axial restraint on camshaft, is covered on camshaft Cam, the keyway on inner hole cover guiding it is strong it is upper fixed with jackscrew, the salient point in two adjacent cams is mutual on camshaft Offset angular installation；

The motor drives camshaft rotation, is to be fixed with substrate on the base, motor, motor are equipped on substrate Axis is connect with gear, the camshaft being connected on gear, through bearing parallel support on substrate；

The substrate is two pieces be set side by side, is separately installed with the camshaft for being driven by a motor rotation on two pieces of substrates, Excessively screw long hole, the screw vertical with the camshaft centerline is respectively equipped on substrate to be each passed through screw long hole, and be screwed in On pedestal in corresponding screw hole.

The advantages of the utility model and good effect are, multiple convex due to being equipped with above the camshaft of motor drive rotation Wheel, cam are prejudicially corresponded with the air inlet and exhaust valve on engine cylinder head, and cam is rotated with camshaft, is being jacked up and is being put down While air valve, the rotation that the air valve body of rod makees horizontal direction is stirred, grinds all gas being supported on stringer on engine cylinder head Valve significantly reduces the labor intensity of worker, work efficiency is high without more manpower works to all air valves grinding operation one by one.

Through testing, for being equipped with the four-cycle diesel of 12 cylinder heads on a tugboat, the stringer last time is placed on 3 platforms Diesel engine cylinder head is stated, 12 cylinder heads, which are put into four times on stringer, to be ground, and 1 people operation only can be fully completed task with two days, together The workload of sample improves working efficiency decades of times compared with the time for expending 3 days with 4-5 people completes, and is fully able to meet large-scale The needs of diesel machinery cylinder head air valve reparation grinding.

Detailed description of the invention

Fig. 1 is the schematic perspective view of the utility model；

Fig. 2 is the schematic front view that diesel engine cylinder head is equipped on Fig. 1；

Fig. 3 is the schematic top plan view of Fig. 2；

Fig. 4 is that the A-A of the diesel engine cylinder head of air valve is provided on Fig. 2 to schematic cross-sectional view；

Fig. 5 is the B-B direction schematic cross-sectional view of Fig. 2；

Fig. 6 is the enlarged diagram that cam above pushes away air valve body of rod eccentric setting in Fig. 4.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings and embodiments.

In Fig. 1, on fixed flat base 8, it is horizontally installed with two cams for driving rotation respectively by two motors 6 Axis 7, two camshafts 7 are arranged in parallel, and spacing distance is equipped with multiple cams 5 to rotate with the axis on camshaft 7；It is located on pedestal 8 There are two stringers 2 on the top of camshaft 7 along 7 direction parallel support of camshaft, the salient point on the multiple cam 5, respectively with peace 11.2 lower end of the body of rod for being put in 10 upper air valve 11 of diesel engine cylinder head on stringer 2 makees the one-to-one correspondence for deviateing its center line 11.3 (referring to fig. 4, Fig. 6)；

When the salient point of cam 5 turns to top, air valve 11 is jacked up, and engine cylinder is left in the back taper face 11.1 of upper part Head 10(referring to fig. 4 in right side air valve 11)；When the salient point of cam 5 turns to lower section, the back taper face 11.1 on 11 top of air valve (air valve 11 in left side in referring to fig. 4) is hit with 10.1 phase of air valve seat on 10 cylinder head of diesel engine cylinder head；

Due to deviateing its center line 11.3(referring to Fig. 6 when the salient point of cam 5 corresponds to 11 11.2 lower end of the body of rod of air valve), In The moment that the salient point of cam 5 is contacted with 11 body of rod of air valve, 11.2 lower end, the body of rod 11.2 that can stir air valve 11 rotate an angle Degree makes the body of rod 11.2 of air valve 11 make corner on one side in this way, cam 5 pushes air valve 11 to make a up and down motion fallen together on one side Degree movement, that is, can reach the purpose of grinding.

The stringer 2 for placing diesel engine cylinder head 10 is to be respectively perpendicular to be fixed with band external screw thread in the quadrangle of the pedestal 8 Upright bar 1, the vertical core that 2 both ends of stringer are respectively equipped with is through in corresponding upright bar 1, is clamped in the upper of stringer 2 with nut 1.1 Lower fixation (referring to fig. 4, Fig. 5)；

The height for turning the i.e. adjustable stringer 2 of the nut 1.1 being mounted on 1 external screw thread of upright bar, also just has adjusted on stringer 2 The height of diesel engine cylinder head 10, the different length of 10 cylinder head air valve of Lai Shiying different model diesel engine cylinder head, 11 body of rod 11.2 It needs.

Need grinding diesel engine cylinder head 10 more stable on the stringer 2 to make to be placed in, on two stringers 2, vertically In stringer 2 in pairs be equipped be suitble to 10 bottom surface of diesel engine cylinder head place seat board 3(referring to fig. 2, Fig. 3), the both ends of seat board 3 are taken respectively It connects and is installed on two stringers 2；

In order to adapt to the needs of 10 width of different model diesel engine cylinder head, overlap joint of the seat board 3 on stringer 2 is installed, Be on two stringers 2 respectively relative to be cased with can along the sliding sleeve 3.1 that 2 length direction of stringer moves, the both ends of the seat board 3, point It is not fixed on corresponding sliding sleeve 3.1, passes through the screw hole on 3.1 side wall of sliding sleeve with screw and hold out against the fixed (ginseng on stringer 2 See Fig. 2, Fig. 4, Fig. 5)；Unscrew fixing screws, one can be adjusted according to the width of 10 pedestal of diesel engine cylinder head, moving sliding sleeve 3.1 To the spacing between seat board 3.

In the opposite exterior lateral sides of the pairs of seat board 3, it is respectively equipped with the baffle 3.2 of setting, the both ends of baffle 3.2 are equipped with vertical In the open-work of 3.2 plate face of baffle, it is parallel to open-work of the screw rod 4 of stringer 2 on each pair of baffle 3.2, is screwed in phase with nut 4.1 To two outsides (referring to fig. 2, Fig. 3) of baffle 3.2.It is adjusted in this way to the spacing between seat board 3, it is only necessary to turn nut 4.1 i.e. The cylinder body for the diesel engine cylinder head 10 that can need to grind by different model clamps positioning.

The cam 5 is mounted on camshaft 7, is to have strip guiding strong 7.3 along its axial restraint on camshaft 7, It covers to cover in the keyway on 5 inner hole of cam on camshaft 7 and be fixed in guiding strong 7.3 with jackscrew 7.2, unscrewing jackscrew 7.2 can make Cam 5 is adjusted along strong 7.3 displacement of guiding, the needs of spacing between Lai Shiying different model engine upper air valve 11；In order to reduce Salient point in two adjacent cams 5 is mutually staggered angle installation by vibration when cam 5 works on camshaft 7.

The motor 6 drives the rotation of camshaft 7, is to be connected separately with gear 6.1 in the shaft end of two motors 6, The output end of gear 6.1 is connected with camshaft 7, camshaft 7 be supported on the pedestal 8 by bearing 7.1 (referring to Fig. 3, Fig. 4, Fig. 5)；In order to facilitate assembling and adjusting, substrate 9, motor 6 and its cam for driving rotation are horizontally fixed on pedestal 8 Axis 7 is fixed on substrate 9.

The substrate 9 is seperated block form, i.e., is made of substrate 9a and two pieces of substrate 9b, two of the connection of two motors 6 Camshaft 7 is separately mounted on substrate 9a and substrate 9b, and the direction with the camshaft 7 is respectively equipped on substrate 9a and substrate 9b Vertical crosses screw long hole 12, and screw 13 passes through in the stubborn screw hole on the base 3 of long hole 12 fixed (referring to Fig. 3)；Unclamp screw 13 can make substrate 9a or substrate 9b mobile along 12 direction of screw long hole is crossed, to adjust the distance between two camshafts 7 Adapt to the needs of the different spacing between a variety of diesel engine cylinder head inlet and outlet valves 11.

The gear 6.1 can be the small gear-box driven by motor 6, be also possible to real with sprocket wheel chain mechanism The deceleration of existing camshaft 7 operates (referring to Fig. 5), can also be by can be achieved speed change it is any other in a manner of so that camshaft 7 is slowed down Operating.

Two camshafts 7 are driven to rotate respectively with two motors 6, multiple cams 5 that camshaft 7 is installed above while work Make, more diesel engine cylinder heads 10 can once be come between each pair of seat board 3 installed on grinder, to the diesel engine cylinder head of placement All air valves 11 on 10 are ground with settling at one go simultaneously, are come compared with the grinding one by one manually to single air valve 11, are mentioned significantly High working efficiency；Manual operation is not needed, the labor intensity of worker is alleviated.

Due to two pieces that the substrate of two camshafts 7 of support installation on the pedestal 8 of this grinder is arranged side by side, it is separately mounted to The spacing of camshaft 7 on substrate 9a and substrate 9b is adjustable, and necessarily adjustable with 5 spacing of two rows of cams that camshaft 7 rotates；It is convex Wheel 5 is mounted on the camshaft 7 being oriented to feather key 7.3, it is coaxial on 5 spacing of cam it is adjustable；With with externally threaded upright bar 1 The stringer 2 on 7 top of supporting cam wheel axis, stringer 2 can drive 3 high and low position of seat board installed thereon adjustable；Diesel oil is placed on stringer 2 3 spacing of seat board of machine cylinder head 10,2 length of You Keshun stringer mobile sliding sleeve 3.1 adjust fixation.In this way, a grinder can The different length of the body of rod 11.2 and the air valve 11 for adapting to a variety of inlet and outlet valves 11 on large-scale petrol and diesel oil machine cylinder head 10 are mutual The grinding reparation of different spacing diesel engine cylinder heads 10.

Above-mentioned grinding machine structure is simple, and production small investment, at low cost, effect is high, convenient in large-scale petrol and diesel oil dynamic power machine Repairing trades promotes and applies.

Above-described embodiment is only the indicative explaination carried out to the utility model, is not unique technical solution, all Using modification or equivalent replacement that the technical solution of the utility model is carried out by purport, in the protection scope of the utility model Within.

Claims (8)

1. a kind of diesel engine cylinder head air valve grinder, it is characterised in that: on fixed pedestal, be horizontally installed with by two motors The camshaft of rotation is driven respectively, is cased with multiple cams rotated with axis on two camshaft disposed in parallel respectively；Pedestal is upper In the top of camshaft, parallel support has two stringers of suitable cam axis direction, the salient point of the cam deviate from be placed in it is vertical The center line of the diesel engine cylinder head air valve body of rod to be ground, is arranged in a one-to-one correspondence with the body of rod lower end of air valve, works as cam on beam Salient point turn to lower section when, the inverted cone surface of air valve is just fallen on the valve seat of air valve.

2. diesel engine cylinder head air valve grinder as described in claim 1, it is characterised in that: described to place the vertical of diesel engine cylinder head Beam is to be respectively perpendicular to be fixed with the vertical core that two stringer ends are arranged in externally threaded upright bar point in the quadrangle of the pedestal It is not through in corresponding upright bar, is clamped in fixing up and down for stringer with nut.

3. diesel engine cylinder head air valve grinder as claimed in claim 1 or 2, it is characterised in that: on two stringers, at To the seat board for being equipped with perpendicular to stringer and being suitble to the placement of diesel engine cylinder head bottom surface, the both ends of seat board are ridden over respectively above two stringers It is fixedly mounted.

4. diesel engine cylinder head air valve grinder as claimed in claim 3, it is characterised in that: fixation of the seat board on stringer Installation is on two stringers respectively relative to be cased with can be along the sliding sleeve that stringer length direction moves, the seat board of the mounted in pairs Both ends are separately fixed on corresponding sliding sleeve, and screw passes through the screw hole on sliding sleeve side wall, are held out against on stringer.

5. diesel engine cylinder head air valve grinder as claimed in claim 4, it is characterised in that: in the relatively outer of the pairs of seat board Side is respectively equipped with the baffle of setting, and the both ends of baffle are equipped with the open-work perpendicular to its plate face, and the screw rod for being parallel to stringer passes through often To the open-work on baffle, two outsides of two opposing flaps are screwed in nut.

6. diesel engine cylinder head air valve grinder as described in claim 1, it is characterised in that: the cam is mounted on camshaft On, it is to have guiding strong along its axial restraint on camshaft, covers the cam on camshaft, the keyway on inner hole, which covers, to be oriented to It is fixed on strong with jackscrew, the salient point in two adjacent cams mutually staggers angle installation on camshaft.

7. diesel engine cylinder head air valve grinder as described in claim 1, it is characterised in that: the motor drives camshaft rotation Turn, is to be fixed with substrate on the base, motor is installed on substrate, motor shaft is connect with gear, is connected to speed change Camshaft in mechanism, through bearing parallel support on substrate.

8. diesel engine cylinder head air valve grinder as claimed in claim 7, it is characterised in that: the substrate is two be set side by side Block is separately installed with the camshaft for being driven by a motor rotation on two pieces of substrates, is respectively equipped on substrate and the camshaft center Line vertical screw long hole, screw excessively were each passed through screw long hole, were screwed on pedestal in corresponding screw hole.