A kind of reduction shield cutter hobboing cutter shock loading device
Technical field
Patent of the present invention belongs to shield cutter hobboing cutter antivibration area, is primarily related to a kind of reduction shield cutter rolling
Knife shock loading device.
Background technology
When hard-soft heterogeneous ground and pebble layer tunnel, hobboing cutter is suddenly encountered shield cutter hobboing cutter by relatively soft stratum
Rock will produce larger shock loading, and impact force energy can not only damage the blade of hobboing cutter, and cutterhead axle journal can be made to roll
Bearing bears prodigious shock loading, is tunneled with the continuous rotation of hobboing cutter, shield cutter hobboing cutter blade and the bearing of journals are repeatedly
It is acted on by shock loading, in this way its service life of meeting serious curtailment, increases the tool changing of cutterhead hobboing cutter and maintenance frequency, reduce pick
Golden efficiency and increase economic cost, therefore, the present invention is a kind of reduction shield cutter hobboing cutter shock loading device, extends cutterhead rolling
The knife service life.
In view of defect existing for above-mentioned existing shield cutter hobboing cutter, the present inventor is based on being engaged in such product design system
Abundant for many years practical experience and professional knowledge are made, and coordinates the utilization of scientific principle, is actively subject to research and innovation, to found one kind
New structural reduction shield cutter hobboing cutter shock loading device can improve general existing shield cutter hob device, make it
With more practicability.By constantly studying, designing, and after studying sample repeatedly and improving, it is practical that really tool is created finally
The present invention of value.
Invention content
The object of the present invention is to provide a kind of reduction shield cutter hobboing cutter shock loading devices, can absorb cutterhead rolling
The impact endurance test shock energy of knife extends cutterhead cutter life to reduce the impact that cutterhead hobboing cutter is subject to.
The object of the invention to solve the technical problems is realized using following technical scheme.One proposed according to the present invention
Kind reduces shield cutter hobboing cutter shock loading device comprising tool post 1 and cutterhead hobboing cutter 2, the cutter axis of the cutterhead hobboing cutter 2
Neck 5 is pressed on by wedge-shaped compact heap 4 on tool post 1;17 one end of bolt is pressed on wedge-shaped compact heap 4, and the other end passes through tool apron
Body 1, and be locked on tool post 1 by the first nut 15 and the second nut 16;The bolt 17 is pressed on wedge-shaped compact heap 4
Alloy damping vibration attenuation part 3 is additionally provided between one end and tool post 1;The tool post 1 is filled with 5 joint of cutterhead axle journal equipped with off-load
It sets.It the purpose of the present invention and solves its technical problem and can also be further achieved by the following technical measures.
Reduction shield cutter hobboing cutter shock loading device above-mentioned, wherein the relief arrangement include piston mandril 12,
Hydraulic cylinder 20 and cylinder cover screw 11, wherein 12 one end of piston top are equipped with the boss 18 to offset with cutterhead axle journal 5, and the other end is inserted into
Hydraulic cylinder 19, end are equipped with piston 20, which is closed by cylinder cover screw 11, and piston 20 and cylinder cover screw 11 it
Between be marked with liquid medium.
Reduction shield cutter hobboing cutter shock loading device above-mentioned, wherein the relief arrangement is located at cutterhead axle journal
5 both horizontally and vertically.
Reduction shield cutter hobboing cutter shock loading device above-mentioned, wherein between second nut 16 and tool post 1
It is additionally provided with bottom compact heap 13.
Reduction shield cutter hobboing cutter shock loading device above-mentioned, wherein the bottom compact heap 13 and the second nut 16
Between be additionally provided with gasket 14.
Reduction shield cutter hobboing cutter shock loading device above-mentioned, wherein between having between the boss 18 and tool post 1
Gap.
Reduction shield cutter hobboing cutter shock loading device above-mentioned, wherein the piston mandril 12 is located in hydraulic cylinder 19
One end be equipped with compressed spring 6, which offsets with piston 20, and the other end is pressed on hydraulic cylinder 20.
Reduction shield cutter hobboing cutter shock loading device above-mentioned, wherein the cylinder cover screw 11 is equipped with adjusting screw
10。
Reduction shield cutter hobboing cutter shock loading device above-mentioned, wherein the end at the 19 hydraulically full end of hydraulic cylinder
With aperture is offered on side wall, be inside respectively provided with pressure release check valve 71 and oiling check valve 72.
Reduction shield cutter hobboing cutter shock loading device above-mentioned, wherein the pressure release check valve 71 includes check valve sheet
Body, ball sealer 9 and resetting spring 8,8 one end of resetting spring are pressed on unidirectional valve body, and the other end is pressed on ball sealer 9, sealing
On the osculum of 9 envelope pressure cylinder of ball, 19 end;The oiling check valve 72 includes unidirectional valve body, ball sealer 9, resetting spring
8 and the cylinder that connects with the osculum of 19 side wall of hydraulic cylinder, resetting spring 8 be located in the cylinder, ball sealer 9 is by unidirectional valve body
It is pressed on resetting spring 8, cylinder is sealed.
Using above-mentioned technical proposal, the present invention has the following advantages:The original of impact vibration energy is absorbed using liquid medium
Reason, cutterhead roller bearing neck are pressed on by wedge-shaped compact heap on horizontal and vertical piston mandril, and hobboing cutter load passes through piston mandril, liquid
Medium, adjusting screw and cylinder cover screw are transmitted on tool apron, and load transfer path is by liquid medium, when cutterhead hobboing cutter is soft or hard
Uneven stratum and pebble layer driving when having larger shock loading, alleviate temporary impact load by relief arrangement;It is revolved in cutterhead
Turn the opposite side in direction and shock loading energy is absorbed by alloy damping unit.
Description of the drawings
Fig. 1 is the front view that the present invention reduces shield cutter hobboing cutter shock loading device;
Fig. 2 is the sectional view that the present invention reduces shield cutter hobboing cutter shock loading device.
【Main element symbol description】
1:Tool post
2:Cutterhead hobboing cutter
3:Alloy damping vibration attenuation part
4:Wedge-shaped compact heap
5:Cutterhead axle journal
6:Spring
71:Pressure release check valve
72:Oiling check valve
8:Resetting spring
9:Ball sealer
10:Adjusting screw
11:Cylinder cover screw
12:Piston mandril
13:Bottom compact heap
14:Gasket
15:First nut
16:Second nut
17:Bolt
18:Boss
19:Hydraulic cylinder
20:Piston
Specific implementation mode
It is of the invention to reach the technological means and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to reduction shield cutter hobboing cutter shock loading device its specific embodiment party proposed according to the present invention
Formula, structure, feature and its effect are described in detail as after.
It please refers to Fig.1 and Fig. 2, for a kind of structural representation reducing shield cutter hobboing cutter shock loading device of the present invention
Figure, apparatus of the present invention include tool post 1 and cutterhead hobboing cutter 2, and the cutterhead axle journal 5 of cutterhead hobboing cutter 2 is pressed on by wedge-shaped compact heap 4
On 1 on hob holder, which is pressed in thereon by one end, and the other end passes through the bolt 17 of tool post 1 to fix.It should
17 other end of bolt is locked by the first nut 15 and the second nut 16.Preferably, second nut 16 and tool post 1
Between be additionally provided with bottom compact heap 13, but not limited to this.Preferably, between 13 and second nut 16 of the bottom compact heap
It is additionally provided with gasket 14.
Alloy damping vibration attenuation part 3 is additionally provided between one end that the bolt 17 is pressed on wedge-shaped compact heap 4 and tool post 1.
The tool post 1 is equipped with relief arrangement with 5 connecting position of cutterhead axle journal.Preferably, the relief arrangement is located at cutterhead
Axle journal 5 is horizontally and vertically.Preferably, the relief arrangement includes piston mandril 12, hydraulic cylinder 19 and cylinder cap spiral shell
Nail 11, wherein 12 one end of the piston mandril is equipped with boss 18, which offsets with cutterhead axle journal 5, and the other end is inserted into hydraulic pressure
In cylinder 19, and end is equipped with piston 20.Preferably, having gap between the boss 18 and tool post 1.
The end of the hydraulic cylinder 19 is closed by the cylinder cover screw 11 being located on tool apron 1, and the piston 20 and cylinder cap
It is marked with liquid medium between screw 11.
Preferably, one end that the piston mandril 12 is inserted into hydraulic cylinder 19 is equipped with spring 6, which is in compression
State, one end offset with piston 20, and the other end is pressed on hydraulic cylinder 19.
Preferably, the cylinder cover screw 11 is equipped with adjusting bolt 10, it to be used for the position of regulating piston mandril 12.
Preferably, aperture is offered on the end of the hydraulically full one end of the hydraulic cylinder 20 and side wall, interior difference
Equipped with pressure release check valve 71 and oiling check valve 72.The check valve includes unidirectional valve body, ball sealer 9 and resetting spring 8.
Wherein in pressure release check valve 71,8 one end of resetting spring is pressed on unidirectional valve body, and the other end is pressed on ball sealer 9, ball sealer 9
It seals on the osculum of 20 end of pressure cylinder.In oiling check valve 72, it is additionally provided with the cylinder to connect with the osculum of 20 side wall of hydraulic cylinder,
Resetting spring 8 is located in the cylinder, and ball sealer 9 is pressed in by unidirectional valve body on the resetting spring 8, is sealed to cylinder.With
For horizontal direction hydraulic cylinder 20, in one aperture of right side opening of hydraulic cylinder 20, installation pressure release check valve 71, the side wall of hydraulic cylinder 20
Open another aperture, installation oiling check valve 72.When piston mandril 12 is moved right by hobboing cutter pressure, piston mandril 12 compresses liquid
Body medium makes liquid medium overflow hydraulic cylinder, is unloaded to play when pressure reaches the pressure release check valve 71 on an open-top right side of timing
The effect of lotus;When the liquid medium in hydraulic cylinder is reduced, by controlling the oiling check valve 72 on 20 side wall of hydraulic cylinder, realization is outer
Supply of the portion to hydraulic cylinder liquid medium.
Above-mentioned pressure release check valve 71 and oiling check valve 72 can carry out pressure tune by the screw on unidirectional valve body
It is whole.
For the present invention when shield cutter hobboing cutter is by temporary impact load, by taking horizontal direction as an example, load passes through piston top
Bar 12, liquid medium, adjusting bolt 7 and cylinder cover screw 11 act on tool apron 1, and liquid medium absorbs impact energy at this time, reduce
The shock loading that hobboing cutter horizontal direction is subject to, when shock loading is excessive, pressure release check valve 71 is opened, and liquid medium is by aperture stream
Go out to reach off-load purpose, the liquid medium of outflow is supplemented by oiling check valve 72;Vertical direction reduces the principle of shock loading
It is identical.Alloy damping device 3 absorbs the shock loading energy of horizontal other direction.
The above described is only a preferred embodiment of the present invention, limitation in any form not is done to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, according to the technical essence of the invention
Any simple modification, equivalent change and modification made to the above embodiment, in the range of still falling within technical solution of the present invention.