CN110410074A - Cohesion device and development machine telescoping mechanism - Google Patents
Cohesion device and development machine telescoping mechanism Download PDFInfo
- Publication number
- CN110410074A CN110410074A CN201910766178.XA CN201910766178A CN110410074A CN 110410074 A CN110410074 A CN 110410074A CN 201910766178 A CN201910766178 A CN 201910766178A CN 110410074 A CN110410074 A CN 110410074A
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- Prior art keywords
- brake lining
- cylinder
- seat
- fixed arm
- cohesion device
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- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 238000009434 installation Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 19
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention relates to a kind of cohesion devices and development machine telescoping mechanism, the cohesion device includes brake lining and brake lining seat, the main body and brake lining of brake lining seat are columnar structured, brake lining is coaxially fixed in the main body of brake lining seat, the inner surface of brake lining is cylindrical surface, and forward outer surface is pre-small post-large outer conical surface, positioned at the front of brake lining seat, the periphery of the main body of brake lining seat is fixedly connected with the cylinder rod of multiple piston cylinders or cylinder barrel, the axial direction of the telescopic direction of cylinder rod each along brake lining；The development machine telescoping mechanism includes fixed arm, telescopic arm and cohesion device, telescopic arm cooperates in fixed arm with fixed arm linear slide, cohesion device covers on telescopic arm, and it is located at the rear of fixed arm, the inner hole of the rear end of fixed arm is set as the small internal conical surface of outer imperial palace, and the relatively fixed arm of the cylinder barrel or cylinder rod of piston cylinder is fixedly mounted.The present invention can eliminate the gap between telescopic slide pair, improve the rigidity of cutting mechanism, reduce vibratory impulse when cutting, reduce abrasion.
Description
Technical field
The present invention relates to a kind of cohesion device of telescopic cutting mechanism of coal mine development machine and using the driving of the device
Machine telescoping mechanism.
Background technique
When the telescopic cutting mechanism operation of traditional coal mine development machine, there are gaps between telescopic slide pair.Coal mine
Under working environment it is especially severe, impact endurance test shock is big, seriously polluted.With the accumulation using the time of machine, telescopic slide pair
Between rubbing surface within the regular hour will serious wear, gap increases, impact when cutting mechanism operation and vibration therewith
Aggravation, it is impaired so as to will cause cutting mechanism frame and transmission parts.Impact reach fuselage, in turn result in Hydraulic Elements,
Electrical component initial failure.
Summary of the invention
The object of the present invention is to provide a kind of cohesion devices and development machine telescoping mechanism, can make in the cutting mechanism of development machine
The gap between telescopic slide pair is eliminated when industry, improves the rigidity of cutting mechanism, reduces vibratory impulse when cutting, reduces mill
Damage, promotes reliability and the service life of cutting mechanism.
Main technical schemes of the invention have:
A kind of cohesion device, including brake lining and brake lining seat, the main body of the brake lining seat and the brake lining are cylinder-shaped knot
Structure, the brake lining are coaxially fixed in the main body of the brake lining seat, and the inner surface of the brake lining is cylindrical surface, the brake lining
Forward outer surface is pre-small post-large outer conical surface, and the front of the brake lining seat, the master of the brake lining seat are located under installation condition
The periphery of body is fixedly connected with the cylinder rod of multiple piston cylinders or cylinder barrel, the multiple circumferentially spaced distribution of piston cylinder, and
Axial direction of the telescopic direction of its cylinder rod each along the brake lining.
The brake lining seat is preferably arc-shaped by two panels middle part, both ends are formed with the brake lining seat unit spliced of ear mount, described
Ear mount extends radially outwardly along the arc-shaped of middle part, and two ear mount fittings are fixed between two brake lining seat units, the brake lining
The periphery of the main body of seat is fixedly connected by the ear mount with the cylinder rod of the piston cylinder or cylinder barrel.
The rear portion of the brake lining can be equipped with external cylindrical surface, and the rear portion fixation of the brake lining is inlaid in the brake lining seat,
The front of the external cylindrical surface exposes to the front of the brake lining seat under installation condition.
The rear portion of the brake lining is also preferably equipped with the land of a circle diameter convex, on the inner hole wall of the main body of the brake lining seat
It is correspondingly provided with a ring slot, the land is radially inserted into the annular groove.
Multiple preceding notches and multiple rear notches are perfectly even equipped on the brake lining along whole circumference, the preceding notch is with after
Notch is the axially extending narrow slit structure along the brake lining, and length is greater than the half of the axial dimension of the brake lining, institute
Leading edge of unique opening in the brake lining of preceding notch is stated, the unique of the rear notch is open in the back edge of the brake lining,
The preceding notch and rear notch are alternatively arranged one by one.
A kind of development machine telescoping mechanism, including fixed arm, telescopic arm and the cohesion device, the telescopic arm is described solid
Cooperating in fixed arm with the fixed arm linear slide, the part in the close axle center of the fixed arm is equipped at one and axially interrupts, with
The part that the axial direction interrupts corresponding separate axle center still maintains continuously whole for front and back, and one section is exposed at axial interruption
Telescopic arm, the cohesion device are mounted at the axial direction interruption and cover on the telescopic arm, and the fixed arm is close at interruption
Front inner hole be set as the small internal conical surface of outer imperial palace, taper is equal to the taper of the forward outer surface of the brake lining, described
The relatively described fixed arm of the cylinder barrel or cylinder rod of piston cylinder is fixedly mounted.
The beneficial effects of the present invention are:
Cohesion device of the invention is mobile by the axial reciprocating between the fixed arm and telescopic arm of telescoping mechanism, realizes
It is eliminating telescopic slide auxiliary air gap and is restoring the switching between telescopic slide auxiliary air gap.When working arm operation, filled with holding tightly
It sets and eliminates telescopic slide auxiliary air gap, the rigidity of cutting mechanism can be significantly improved, vibratory impulse when cutting is effectively reduced, mentions
The functional reliability and service life of cutting mechanism are risen, and is further decreased hydraulic to driving section and complete machine, electric under vibration operating condition
The negative effect of control system etc..
When due to eliminating telescopic slide auxiliary air gap, keep opposing stationary between cutting mechanism fixed arm and telescopic arm, it can be with
The abrasion of the wear-resistant sleeve between fixed arm and telescopic arm is effectively reduced, the use longevity of wear-resistant sleeve or even entire cutting mechanism is improved
Life.
The development machine telescoping mechanism of the invention is when telescopic arm is held tightly, due to self-locking design, cohesion device not
In the case where actively unclamping, hold tightly state can not vibrated impact influence continuously effective, hold tightly reliably.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the cohesion device；
Fig. 2 is the structural schematic diagram of the piston cylinder；
Fig. 3 is the structural schematic diagram of the brake lining；
Fig. 4 is the structural schematic diagram of the brake lining seat unit；
Fig. 5 is the structural schematic diagram of one embodiment of the development machine telescoping mechanism.
Detailed description of the invention:
1. brake lining；11. outer conical surface；12. external cylindrical surface；Notch before 13.；Notch after 14.；
2. brake lining seat；21. brake lining seat unit；211. ear mount；
3. piston cylinder；31. cylinder barrel；32. cylinder rod；33. disk spring；34. connector；
4. thread connector；
5. fixed arm；51. internal conical surface；
6. telescopic arm；
7. cohesion device；
8. wear-resistant sleeve.
Specific embodiment
The invention discloses a kind of cohesion devices, as shown in Figs 1-4, including brake lining 1 and brake lining seat 2, the brake lining seat
Main body and the brake lining be it is columnar structured, the brake lining is coaxially fixed in the main body of the brake lining seat.The brake lining
Inner surface is cylindrical surface, and the forward outer surface of the brake lining is pre-small post-large outer conical surface 11, the main body of the brake lining seat
Periphery is fixedly connected with the cylinder rod 32 of multiple piston cylinders 3 or cylinder barrel 31, the multiple circumferentially spaced distribution of piston cylinder,
And the telescopic direction of its cylinder rod is each along the axial direction and front-rear direction of the brake lining.
The internal diameter of the main body of the brake lining seat should be greater than the internal diameter of the brake lining.
The material of the brake lining preferably uses high-strength spring steel.
When cylinder rod is flexible with respect to cylinder barrel, the brake lining seat moves back and forth before and after driving the brake lining, the brake lining it is forward and
The cohesion device, which is respectively corresponded, by latter two position is in holding and release two states.
The piston cylinder is preferably circumferentially uniformly distributed, in this way to the push-and-pull action power of the brake lining seat and brake lining in circle
In circumferential direction more evenly, to ensure that brake lining is axially translated and is unlikely to skew and distortion.In the present embodiment, the piston cylinder
There are two, it is mutually 180 degree arrangement.
As shown in figure 4, the brake lining seat can be arc-shaped by two panels middle part, brake lining seat unit of the both ends with ear mount 211
21 splicing compositions, the ear mount extend radially outwardly along the arc-shaped of middle part, two ear mount patches between two brake lining seat units
It closes, and is threaded part 4 and fixes, the cylinder that the periphery of the main body of the brake lining seat passes through the ear mount and the piston cylinder
Bar or cylinder barrel are fixedly connected.
As shown in Fig. 2, the piston cylinder preferably uses single-action piston cylinder.
Further, the piston cylinder is single rod piston cylinder, and rod chamber is built-in with disk spring 33.The dish bullet
Spring covers in cylinder rod.Fluid media (medium) enters rodless cavity by connector 34, pushes cylinder rod overhanging.When fluid media (medium) passes through connector 34
When oil return, the disk spring in rod chamber is sprung back, and retracts cylinder rod.
Piston cylinder described in the present embodiment uses hydraulic cylinder, and power output is big and steady.
As shown in Fig. 3,5, the rear portion of the brake lining can be equipped with external cylindrical surface 12, before outer conical surface 11 and external cylindrical surface 12
After abut, the fixation of the rear portion of the brake lining is inlaid in the brake lining seat, and the front of the external cylindrical surface is preferred under installation condition
Expose to the front of the brake lining seat.The outer diameter of the external cylindrical surface is generally equal to the maximum gauge of the outer conical surface.
In the present embodiment, the rear portion of the brake lining, which specifically can be, is also preferably equipped with a circle diameter convex on external cylindrical surface 12
Land, be correspondingly provided with a ring slot on the inner hole wall of the main body of the brake lining seat, the land is radially inserted into the annular groove
In, being fixedly connected for the brake lining and the main body of brake lining seat is realized with this.The annular groove can play good radial direction to brake lining
With the position-limiting action of axial twocouese.When disassembly, at least first tears next brake lining seat unit open, further take out the brake lining.
Multiple preceding notches 13 and multiple rear notches 14 are uniformly provided with along whole circumference on the brake lining, the preceding notch is with after
Notch is the axially extending narrow slit structure along the brake lining, and length is greater than the half of the axial dimension of the brake lining, institute
Leading edge of unique opening in the brake lining of preceding notch is stated, the unique of the rear notch is open in the back edge of the brake lining,
The preceding notch and rear notch are alternatively arranged one by one, form S type notch.Using the deformation of S type notch, when the cohesion device
In hold tightly state when, can be obtained between the front of the brake lining and inside and outside adjacent other parts with wedge it is tighter, therefore can make embrace
It is tight more reliable.
The preceding notch and the edge of the respective end of rear notch (i.e. the innermost end of narrow slit structure) are preferably smooth curve
Transition, and radius of curvature not only facilitates the deflection for increasing brake lining more preferably greater than the half of slit width, but also is avoided that or subtracts
Stress is concentrated when few brake lining deformation.
In the embodiment shown in that figure, the cylinder rod 32 of the piston cylinder is fixedly connected with the brake lining seat, and specifically cylinder rod is worn
A pair of ear mount being fixed together is crossed, the fastenings such as connection bolt are recycled.
The invention also discloses a kind of development machine telescoping mechanisms, as shown in figure 5, including fixed arm 5, telescopic arm 6 and aforementioned
Cohesion device 7, the telescopic arm in the fixed arm with the fixed arm linear slide cooperate.The fixed arm leans on
The part of the paraxial heart is equipped with axial interruption at one, and it is preceding that the part in separate axle center corresponding with axial direction interruption, which still maintains,
It is continuous whole afterwards.Expose one section of telescopic arm at axial interruption.The cohesion device is mounted at the axial direction interruption and covers in institute
It states on telescopic arm.The fixed arm is set as the small internal conical surface 51 of outer imperial palace, taper etc. close to the front inner hole at interruption
In the taper of the front outer conical surface 11 of the brake lining.By the way that the fixed arm is wedged close to interruption in the front of the brake lining
The front inner hole at place is eliminated the gap between telescopic arm and fixed arm, is made without relative motion between fixed arm and telescopic arm, i.e.,
Realize " holding ".The rigidity of development machine telescoping mechanism can be significantly improved using cohesion device, reduce vibration punching when cutting
It hits, reduces abrasion, promote reliability and the service life of development machine telescoping mechanism.The cylinder barrel or cylinder rod of the piston cylinder are mounted on institute
It states on fixed arm.
The case where being fixedly connected for the cylinder rod of the piston cylinder with the brake lining seat, the cylinder barrel of the piston cylinder is then installed
On the fixed arm.
Before telescoping mechanism will do expanding-contracting action, first allow the cohesion device piston cylinder rodless cavity oil inlet, piston and
Cylinder rod drives brake lining seat and brake lining to move backward, to unlock the brake lining of the taper of cohesion device, make fixed arm and telescopic arm it
Between restore gap, it is ensured that expanding-contracting action is gone on smoothly.After telescoping mechanism expanding-contracting action stops, before cutting mechanism preparation work,
The rodless cavity oil return for making the piston cylinder of cohesion device pushes brake lining seat and brake lining by the disk spring in piston cylinder rod chamber
It moves forward, brake lining holds forward the telescopic arm tightly, eliminates the sliding auxiliary air gap between fixed arm and telescopic arm, keeps quasi- rigid
Property, vibratory impulse when cutting is effectively reduced, promotes the functional reliability and service life of cutting mechanism.
By the deformation of S type notch, the outer conical surface 11 of the brake lining and the internal conical surface 51 of fixed arm can be obtained more with wedge
Tightly, brake lining can closely hold telescopic arm tightly.Outer conical surface 11 and the taper design of internal conical surface 51 also are compliant with from bolt
Part.
By being arranged the cohesion device, keep opposing stationary between fixed arm and telescopic arm when operation, therefore can subtract
The abrasion of fixed wear-resistant sleeve 8, improves the service life of telescoping mechanism on few fixed arm inner hole wall.
Claims (10)
1. a kind of cohesion device, it is characterised in that: including brake lining and brake lining seat, the main body of the brake lining seat and the brake lining are
Columnar structured, the brake lining is coaxially fixed in the main body of the brake lining seat, and the inner surface of the brake lining is cylindrical surface, described
The forward outer surface of brake lining is pre-small post-large outer conical surface, and the front of the brake lining seat, the brake lining are located under installation condition
The periphery of the main body of seat is fixedly connected with the cylinder rod of multiple piston cylinders or cylinder barrel, circumferentially spaced point of the multiple piston cylinder
Cloth, and the telescopic direction of its cylinder rod is each along the axial direction of the brake lining.
2. cohesion device as described in claim 1, it is characterised in that: the brake lining seat by being arc-shaped in the middle part of two panels, both ends
Brake lining seat unit spliced composition with ear mount, the ear mount extend radially outwardly along the arc-shaped of middle part, two brake lining seat lists
The fitting of two ear mounts is fixed between member, the periphery of the main body of the brake lining seat by the cylinder rod of the ear mount and the piston cylinder or
Cylinder barrel is fixedly connected.
3. cohesion device as claimed in claim 2, it is characterised in that: the piston cylinder uses single-action piston cylinder.
4. cohesion device as claimed in claim 3, it is characterised in that: the piston cylinder is single rod piston cylinder, rod chamber
It is built-in with disk spring.
5. cohesion device as claimed in claim 4, it is characterised in that: the piston cylinder is hydraulic cylinder.
6. the cohesion device as described in claim 2,3,4 or 5, it is characterised in that: the rear portion of the brake lining is equipped with external cylindrical surface,
The rear portion fixation of the brake lining is inlaid in the brake lining seat, and the front of the external cylindrical surface exposes to the lock under installation condition
The front of bar.
7. cohesion device as claimed in claim 6, it is characterised in that: the rear portion of the brake lining is additionally provided with a circle diameter convex
Land is correspondingly provided with a ring slot on the inner hole wall of the main body of the brake lining seat, and the land is radially inserted into the annular groove.
8. the cohesion device as described in claim 1,2,3,4,5,6 or 7, it is characterised in that: along whole circumference on the brake lining
Be uniformly provided with multiple preceding notches and it is multiple after notch, the preceding notch and rear notch are along the axially extending narrow of the brake lining
Crack structure, length are greater than the half of the axial dimension of the brake lining, and unique opening of the preceding notch is before the brake lining
Edge, in the back edge of the brake lining, the preceding notch and rear notch are alternatively arranged unique opening of the rear notch one by one.
9. a kind of development machine telescoping mechanism, it is characterised in that: including any one of fixed arm, telescopic arm and claim 1-8
The cohesion device, the telescopic arm cooperate in the fixed arm with the fixed arm linear slide, the fixed arm
It is equipped with axial interruption at one close to the part in axle center, it is preceding that the part in separate axle center corresponding with axial direction interruption, which still maintains,
It is continuous whole afterwards, one section of telescopic arm is exposed at axial interruption, the cohesion device is mounted at the axial direction interruption and covers in institute
It states on telescopic arm, the fixed arm is set as the small internal conical surface of outer imperial palace close to the front inner hole at interruption, and taper is equal to
The taper of the forward outer surface of the brake lining, the relatively described fixed arm of the cylinder barrel or cylinder rod of the piston cylinder are fixedly mounted.
10. development machine telescoping mechanism as claimed in claim 9, it is characterised in that: the cylinder rod of the piston cylinder and the brake lining
Seat is fixedly connected, and the cylinder barrel of the piston cylinder is fixedly connected with the fixed arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766178.XA CN110410074B (en) | 2019-08-19 | 2019-08-19 | Enclasping device and heading machine telescopic mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766178.XA CN110410074B (en) | 2019-08-19 | 2019-08-19 | Enclasping device and heading machine telescopic mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110410074A true CN110410074A (en) | 2019-11-05 |
| CN110410074B CN110410074B (en) | 2024-05-03 |
Family
ID=68367953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910766178.XA Active CN110410074B (en) | 2019-08-19 | 2019-08-19 | Enclasping device and heading machine telescopic mechanism |
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| Country | Link |
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| CN (1) | CN110410074B (en) |
Citations (13)
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|---|---|---|---|---|
| FR785161A (en) * | 1934-04-25 | 1935-08-03 | Improvements to braking devices and similar mechanisms | |
| GB1531058A (en) * | 1976-07-15 | 1978-11-01 | Draftex Dev Ag | Channel-shaped sealing finishing and guide strips |
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2019
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| Publication number | Publication date |
|---|---|
| CN110410074B (en) | 2024-05-03 |
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