CN205778864U - The abrasion of pick matrix and the coal winning machine cutting bit device of rotating speed can be monitored - Google Patents
The abrasion of pick matrix and the coal winning machine cutting bit device of rotating speed can be monitored Download PDFInfo
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- CN205778864U CN205778864U CN201620602861.1U CN201620602861U CN205778864U CN 205778864 U CN205778864 U CN 205778864U CN 201620602861 U CN201620602861 U CN 201620602861U CN 205778864 U CN205778864 U CN 205778864U
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- pick
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- pick matrix
- winning machine
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Abstract
The abrasion of pick matrix and the coal winning machine cutting bit device of rotating speed can be monitored, including pick box, pick set it is fixed with on pick box, along being equipped with pick matrix in pick set, the outer face of pick matrix is provided with tooth head, is provided with centring ring in the middle part of pick matrix, and pick matrix inner face is provided with blind hole in the axial direction, being provided with rotatory sealing pipe joint at the aperture of blind hole, rotatory sealing pipe joint is provided with oil pressure sensor.Pick box top is provided with capacitive approach switch, and centring ring is provided with the detection head for capacitive approach switch detection.This utility model can promptly and accurately find pick matrix and the state of wear of pick set, avoid the abnormal damage of winning machine cutting part, can detect that pick matrix does not rotates or rotation time is spaced too long of signal in the course of the work, thus prevent pick matrix and the eccentric wear of tooth head, avoid the too early eccentric wear of other pick or the damage of cutting units simultaneously, and then reduction construction cost, improve the work efficiency of coal excavation apparatus.
Description
Technical field
This utility model belongs to mining machinery technical field, especially relates to one and can monitor the abrasion of pick matrix and rotating speed
Coal winning machine cutting bit device.
Background technology
In the prior art, the pick of coal-winning machine mainly includes pick box, pick set, pick matrix and jump ring, pick base
External end is provided with hard-metal insert head, and pick matrix underpart periphery is provided with jump-ring slot, and pick matrix is plugged in pick overlaps also
Being positioned by the jump ring being located in jump-ring slot, pick matrix is freely rotatable in pick overlaps.
During pick matrix and pick are enclosed within cut rock, coal seam, failure mode mainly has two kinds of situations: one is to cut
Tooth matrix and the abrasion of hard-metal insert head thereof, owing to hard alloy head is to be mounted on the outer face of pick matrix, along with
During cutting units turns over, hard-metal insert head there will be situation about coming off, and causes digging efficiency to be remarkably decreased；Another kind is
Pick box and pick set abrasion, it is impossible to provide for pick matrix and effectively support；The third is that pick matrix can not in pick overlaps
Flexible rotating, causes pick matrix and the eccentric wear of hard-metal insert head, and then digging efficiency is remarkably decreased.Due to coal mining activity
Special environment makes the abrasion of pick matrix and pick set sometimes be difficult to be found in time, if the pick matrix lost efficacy and pick
Set can not be changed in time, the most easily causes the abnormal damage of winning machine cutting part, and then affects the work efficiency of coal excavation apparatus.
Utility model content
In place of this utility model is in order to solve the deficiencies in the prior art, it is provided that a kind of simple in construction, anti-wear performance be strong, can
Detect the rotary state of pick matrix in time and change pick matrix in time, can effectively protect winning machine cutting part injury-free
The abrasion of pick matrix and the coal winning machine cutting bit device of rotating speed can be monitored.
In order to solve above-mentioned technical problem, this utility model adopt the following technical scheme that can monitor pick matrix abrasion and
The coal winning machine cutting bit device of rotating speed, including pick box, pick box is fixed with pick set, along being equipped with pick base in pick set
Body, pick matrix is provided with the jump-ring slot being positioned within pick set, is arranged with and pick set inwall snap-fit engagement in jump-ring slot
Jump ring, the outer face of pick matrix is provided with mounting groove in the axial direction, is fixed with the tooth protruding from outside mounting groove in mounting groove
Head, in the middle part of pick matrix, external peripheral surface is provided with the centring ring of annular, and the inner face of pick matrix the most at least sets
There is a blind hole, the bottom 5-10mm of the distance from bottom mounting groove of blind hole, it is provided with rotatory sealing pipe joint at the aperture of blind hole, rotation
Turning sealed fitting to be connected with the hydraulic system of coal-winning machine by oil pipe, rotatory sealing pipe joint is provided with in monitoring blind hole
The oil pressure sensor of oil pressure；
Pick box top is provided with and is positioned at exposed mounting box below the pick matrix outside pick set, along footpath on centring ring
Offer detection groove to direction, in detection groove, be inlaid with the detection head being made up of nonmetallic materials, detection head outer surface and location
Circle surface flushes or is depressed in detection groove, is provided with support in mounting box, and support is provided with capacitive approach switch, mounting box
The transparency cover being provided with between capacitive approach switch and centring ring, the sensitive surface of capacitive approach switch passes through transparency cover
Towards centring ring, being provided with the most penetrating through wires hole in pick box, through wires hole upper end is internal with mounting box to be connected, and wears in through wires hole
Being provided with signal control line, signal control line upper end is connected with capacitive approach switch.
Mounting groove is column type groove, and mounting groove inwall is provided with female thread, and tooth head external peripheral surface is provided with external screw thread, tooth head spiral shell
Fix in stricture of vagina is connected to mounting groove and by the way of soldering with pick matrix and be connected.
Pick matrix is structure as a whole with centring ring, pick matrix exposed pick overlap outside surface, centring ring surface and
Tooth head is coated with diamond wear proof layer on exposed surface outside pick matrix.
Using technique scheme, first, oil pressure sensor is connected to the control system of coal-winning machine by data signal line
On, capacitive approach switch is connected in the control system of coal-winning machine by described signal control line.
Operation principle of the present utility model is: during pick matrix and pick are enclosed within cut rock and coal seam, coal-winning machine
Hydraulic system in the blind hole that pick intrinsic silicon is arranged, inject low pressure oil, now oil pressure sensor detects that pressure signal is
Fixed value more than zero, when pick matrix may wear at set blind hole, low pressure oil is revealed, distress resolves, oil pressure sensor
The signal that pressure is zero detected, send, by the control system of data signal alignment coal-winning machine, the letter that the abrasion of pick matrix puts in place
Number, at this moment staff can the state of wear finding pick matrix promptly and accurately, change in time pick matrix, it is to avoid mine
Machine cutting units is the most damaged.
It addition, the pick of coal winning machine cutting bit is during cut rock and coal seam, pick matrix often rotates one week, condenser type
Proximity switch i.e. can detect that the detection in detection groove for the first time, and is transmitted to the control system of coal-winning machine by holding wire,
The rotating speed of pick matrix is calculated by receiving the time interval between twice signal.If capacitive approach switch for a long time can not
Detection head being detected, this signal is transmitted to the control system of coal-winning machine by capacitive approach switch by signal control line, adopts
Coal machine control system sends this pick matrix and does not rotates or the rotation time too long of alarm signal in interval, reminds staff to want
Change this pick in time.
Mounting box plays protection capacitive approach switch and has good working order in airtight environment, it is to avoid disliking
Bad working environment receives damage.The setting of through wires hole, makes signal control line the most exposed outside, and protection signal control line is not subject to
Damage.Detection head outer surface flushes with centring ring surface or is depressed in detection groove, so can avoid detecting head and be damaged.
Tooth head thread is connected in the mounting groove of pick matrix, and fixing with pick matrix by the way of soldering is connected,
Tooth head so can be avoided to be thrown out of after a period of operation come off, the first straight operation of tooth can be made to the bottommost of mounting groove.
On the exposed exposed surface outside pick matrix of surface, centring ring surface and tooth head outside pick overlaps of pick matrix
It is coated with diamond wear proof layer, the most fully extends this utility model service life in operation process.
In sum, this utility model simple in construction, easily operated monitoring, it is possible to discovery pick matrix promptly and accurately and
The state of wear of pick set, it is to avoid the abnormal damage of winning machine cutting part, can detect pick matrix not in the course of the work
Rotate or rotation time is spaced too long of signal, thus prevent pick matrix and the eccentric wear of tooth head, avoid cutting units simultaneously
The too early eccentric wear of other pick or damage, and then reduce construction cost, improve the work efficiency of coal excavation apparatus.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
The abrasion of pick matrix and the coal winning machine cutting bit device of rotating speed is monitored, including cutting as it is shown in figure 1, of the present utility model
Toothholder 1, pick box 1 is fixed with pick set 2, and along being equipped with pick matrix 3 in pick set 2, pick matrix 3 is provided with and is positioned at
Pick set jump-ring slot within 2, is arranged with in jump-ring slot and overlaps the jump ring 4 of 2 inwall snap-fit engagement, outside pick matrix 3 with pick
End face is provided with mounting groove in the axial direction, is fixed with the tooth head 5 protruded from outside mounting groove, in the middle part of pick matrix 3 in mounting groove
External peripheral surface is provided with the centring ring 6 of annular, the inner face of pick matrix 3 in the axial direction at least provided with a blind hole 15,
The bottom 5-10mm of the distance from bottom mounting groove of blind hole 15, is provided with rotatory sealing pipe joint 17 at the aperture of blind hole 15, rotate close
Tube sealing joint 17 is connected with the hydraulic system of coal-winning machine by oil pipe 19, and rotatory sealing pipe joint 17 is provided with for monitoring blind hole
The oil pressure sensor 21 of oil pressure in 15.
Pick box 1 top is provided with and is positioned at exposed mounting box 7 below the pick matrix 3 outside pick set 2, centring ring 6
On radially offer detection groove, be inlaid with, in detection groove, the detection 8 being made up of nonmetallic materials, detect 8 appearance
Face flushes with centring ring 6 surface or is depressed in detection groove, is provided with support 9 in mounting box 7, and support 9 is provided with condenser type and connects
Nearly switch 10, mounting box 7 is provided with the transparency cover 11 between capacitive approach switch 10 and centring ring 6, capacitive proximity
The sensitive surface of switch 10 towards centring ring 6, is provided with the most penetrating through wires hole 12, through wires hole by transparency cover 11 in pick box 1
12 upper ends are internal with mounting box 7 to be connected, and is equipped with signal control line 13, signal control line 13 upper end and condenser type in through wires hole 12
Proximity switch 10 connects.
Mounting groove is column type groove, and mounting groove inwall is provided with female thread, and tooth head 5 external peripheral surface is provided with external screw thread, tooth head 5
Fix in being threaded in mounting groove and by the way of soldering with pick matrix 3 and be connected.
Pick matrix 3 is structure as a whole with centring ring 6, pick matrix 3 exposed pick set 2 outside surface, centring ring 6 table
It is coated with diamond wear proof layer 14 on face and the exposed surface outside pick matrix 3 of tooth head 5.
First, oil pressure sensor 21 is connected in the control system of coal-winning machine by data signal line, and capacitive proximity is opened
Close 10 to be connected in the control system of coal-winning machine by described signal control line 13.
Operation principle of the present utility model is: pick matrix 3 and pick set 2, during cut rock and coal seam, are mined
The hydraulic system of machine injects low pressure oil in the internal blind hole 15 arranged of pick matrix 3, and now oil pressure sensor 21 detects pressure
Force signal is the fixed value more than zero, and when pick matrix 3 and pick set 2 may wear at set blind hole 15, low pressure oil is revealed,
Distress resolves, oil pressure sensor 21 detects the signal that pressure is zero, is sent out by the control system of data signal alignment coal-winning machine
Go out pick matrix 3 to wear and tear the signal that puts in place, at this moment staff can the state of wear finding pick matrix 3 promptly and accurately also
Change pick matrix 3, it is to avoid winning machine cutting part is the most damaged.
It addition, the pick of coal winning machine cutting bit is during cut rock and coal seam, pick matrix 3 often rotates one week, electric capacity
Formula proximity switch 10 i.e. can detect that the detection 8 in detection groove once, and by the control system of holding wire transmission to coal-winning machine
In system, calculate the rotating speed of pick matrix 3 by receiving the time interval between twice signal.If capacitive approach switch 10 is long
Time can not detect detection 8, and this signal is transmitted to coal-winning machine by capacitive approach switch 10 by signal control line 13
In control system, coal-winning machine control system sends this pick matrix 3 and does not rotates or the rotation time too long of alarm signal in interval,
Staff is reminded to change this pick in time.
Above example is only in order to illustrative not limiting the technical solution of the utility model, although with reference to above-described embodiment pair
This utility model has been described in detail, and it will be understood by those within the art that: without departing from essence of the present utility model
Any modification or partial replacement in god and scope, it all should be contained in the middle of right of the present utility model.
Claims (3)
1. can monitor the abrasion of pick matrix and the coal winning machine cutting bit device of rotating speed, including pick box, pick box be fixed with and cuts
Tooth set, along being equipped with pick matrix in pick set, pick matrix is provided with the jump-ring slot being positioned within pick set, jump-ring slot inner sleeve
Being provided with and the jump ring of pick set inwall snap-fit engagement, the outer face of pick matrix is provided with mounting groove in the axial direction, in mounting groove
Being fixed with the tooth head protruded from outside mounting groove, in the middle part of pick matrix, external peripheral surface is provided with the centring ring of annular, its feature
It is: the inner face of pick matrix is in the axial direction at least provided with a blind hole, the bottom 5-of the distance from bottom mounting groove of blind hole
10mm, is provided with rotatory sealing pipe joint at the aperture of blind hole, rotatory sealing pipe joint is by the hydraulic system of oil pipe with coal-winning machine
Connecting, rotatory sealing pipe joint is provided with the oil pressure sensor of oil pressure in monitoring blind hole；
Pick box top is provided with and is positioned at exposed mounting box below the pick matrix outside pick set, radially square on centring ring
To offering detection groove, in detection groove, it is inlaid with the detection head being made up of nonmetallic materials, detection head outer surface and centring ring table
Face flushes or is depressed in detection groove, is provided with support in mounting box, and support is provided with capacitive approach switch, and mounting box sets
Have the transparency cover between capacitive approach switch and centring ring, the sensitive surface of capacitive approach switch by transparency cover towards
Centring ring, is provided with the most penetrating through wires hole in pick box, through wires hole upper end is internal with mounting box to be connected, and is equipped with in through wires hole
Signal control line, signal control line upper end is connected with capacitive approach switch.
The pick matrix that monitors the most according to claim 1 weares and teares and the coal winning machine cutting bit device of rotating speed, it is characterised in that:
Mounting groove is column type groove, and mounting groove inwall is provided with female thread, and tooth head external peripheral surface is provided with external screw thread, and tooth head thread is connected to
Fix in mounting groove and by the way of soldering with pick matrix and be connected.
The pick matrix that monitors the most according to claim 1 and 2 weares and teares and the coal winning machine cutting bit device of rotating speed, and its feature exists
In: pick matrix is structure as a whole with centring ring, and exposed surface, centring ring surface and the tooth head outside pick overlaps of pick matrix is naked
It is exposed on the surface outside pick matrix and is coated with diamond wear proof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620602861.1U CN205778864U (en) | 2016-06-20 | 2016-06-20 | The abrasion of pick matrix and the coal winning machine cutting bit device of rotating speed can be monitored |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620602861.1U CN205778864U (en) | 2016-06-20 | 2016-06-20 | The abrasion of pick matrix and the coal winning machine cutting bit device of rotating speed can be monitored |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778864U true CN205778864U (en) | 2016-12-07 |
Family
ID=58132538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620602861.1U Expired - Fee Related CN205778864U (en) | 2016-06-20 | 2016-06-20 | The abrasion of pick matrix and the coal winning machine cutting bit device of rotating speed can be monitored |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205778864U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882170A (en) * | 2019-01-29 | 2019-06-14 | 淮南市众兴机械制造有限责任公司 | A kind of tooth seat structure of boom-type roadheader pick |
| CN110952428A (en) * | 2019-12-02 | 2020-04-03 | 上海道基环保科技有限公司 | Tool bit for heavy machinery tool drum and wear state alarm system thereof |
| CN113431573A (en) * | 2021-07-28 | 2021-09-24 | 西安煤矿机械有限公司 | Coal cutter cutting tooth breakage preventing device and method |
-
2016
- 2016-06-20 CN CN201620602861.1U patent/CN205778864U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882170A (en) * | 2019-01-29 | 2019-06-14 | 淮南市众兴机械制造有限责任公司 | A kind of tooth seat structure of boom-type roadheader pick |
| CN109882170B (en) * | 2019-01-29 | 2021-02-09 | 淮南市众兴机械制造有限责任公司 | Tooth holder structure of cantilever type heading machine cutting tooth |
| CN110952428A (en) * | 2019-12-02 | 2020-04-03 | 上海道基环保科技有限公司 | Tool bit for heavy machinery tool drum and wear state alarm system thereof |
| CN113431573A (en) * | 2021-07-28 | 2021-09-24 | 西安煤矿机械有限公司 | Coal cutter cutting tooth breakage preventing device and method |
| CN113431573B (en) * | 2021-07-28 | 2024-03-22 | 西安煤矿机械有限公司 | Device and method for preventing cutting pick of coal mining machine from falling off |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170620 |