CN103104257B - Coal mining machine and travel unit overload protective device thereof - Google Patents
Coal mining machine and travel unit overload protective device thereof Download PDFInfo
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- CN103104257B CN103104257B CN201310038871.8A CN201310038871A CN103104257B CN 103104257 B CN103104257 B CN 103104257B CN 201310038871 A CN201310038871 A CN 201310038871A CN 103104257 B CN103104257 B CN 103104257B
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- travel unit
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Abstract
The invention provides a coal mining machine and a travel unit overload protective device thereof. The travel unit overload protective device of the coal mining machine comprises a first connecting piece, a second connecting piece and a friction piece, wherein the first connecting piece is connected with a low-speed end of a transmission system of a traction unit of the coal mining machine; the second connecting piece is connected with a travelling wheel of the travel unit of the of the coal mining machine; and friction surfaces of the friction piece are respectively tightly pressed on the first connecting piece and the second connecting piece, so that the first connecting piece and the second connecting piece can be in overload slipped connection with each other. The travel unit overload protective device of the coal mining machine has the beneficial effects that when the overload phenomenon occurs, the first connecting piece and the second connecting piece can slip to realize overload protection, so that overload protection parts can not be damaged; and as the first connecting piece is connected with the low-speed end of the transmission system of the traction unit of the coal mining machine, the overload protection effect can be played within the shortest time, so that damage to transmission parts and components due to overload can be avoided.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of coal-winning machine and travel unit overload protective device thereof.
Background technology
At present, in the overload protection of Walk Part of Shearer, the measure mainly taked is by the scheme such as torque axis or electic protection.The scheme of torque axis is adopted to be connect a torque axis on motor shaft; when transmission system is transshipped; ruptured by torque axis and transmission system protected; but this scheme is when torque axis ruptures; whole driving parts between road wheel and torque axis are subject to heavy duty all; certain injury has been caused to transmission system, also not obvious to the protection of road wheel.For electic protection scheme, because electic protection exists obvious hysteresis quality, so still certain injury can be caused to transmission system.Also has a kind of overload protection scheme; the program is effectively protected road wheel by adopting torsion loop; although this kind of overload protection scheme can not make whole transmission system by heavy duty; but this scheme is the same with torque axis scheme to be still to destroy protection part and to reach protection object, overload needs the part more renewed after damaging.
Summary of the invention
In view of this, the present invention is intended to propose a kind of coal-winning machine and travel unit overload protective device thereof, with solve to the protection of Walk Part of Shearer not and overload damage after need the problem of the protection part more renewed.
For achieving the above object, technical scheme of the present invention is achieved in that
On the one hand; the invention provides a kind of travel unit overload protective device of coal-winning machine; comprise the first connector, the second connector and friction member; described first connector is connected with the low speed end of the transmission system of described shearer hauled-part; described second connector is connected by the road wheel of major axis with described Walk Part of Shearer; the rubbing surface of described friction member is pressed on described first connector and the second connector respectively, thus makes described first connector and the second connector form the connection of transshipping and can skid.
Further, described friction member is the expansion set of a cylindrical shape, and described first connector is the adapter sleeve that external surface coordinates with the inner core face of described expansion set, and described second connector is the bearing that inner surface coordinates with the urceolus face of described expansion set.
Further, be provided with multiple for regulating the bolt of described expansion set diameter along its diametric(al) at the external surface of described expansion set.
Further, described adapter sleeve engages with the low speed end of the transmission system of described Walk Part of Shearer or is coaxially connected.
Further, the connection of described bearing and described major axis is that same axle key connects or polygonal shaft hole matching connects.
Further, described bearing is a tubular structure, is provided with the keyway or polygonal hole that coordinate with described major axis, is provided with detachable end in the openend of described bearing at the blind end of described bearing.
Further, described polygonal hole is square opening or hexagonal hole.
On the other hand, present invention also offers a kind of coal-winning machine being provided with the travel unit overload protective device of above-mentioned coal-winning machine.
Relative to prior art, the present invention has following advantage:
1, the travel unit overload protective device of coal-winning machine of the present invention, because adopting friction member and the first connector, the frictional fit of the second connector realizes the transmission of moment of torsion, so, when there is overload phenomenon, can by skidding to realize overload protection between first connector and the second connector, this overload protection can not damage overload protection part; And because the first connector is connected with the low speed end of the transmission system of Walk Part of Shearer; therefore travel unit overload protective device of the present invention can play overload protective function for each transmission component of shearer hauled-part within the fastest time; avoid damaging transmission component, particularly road wheel because of overload.
2, friction member of the present invention is expansion set, expansion set is provided with the bolt for regulating expansion set diameter, therefore, can by regulating the contact area of expansion set and adapter sleeve and bearing to the adjustment of expansion set diameter, thus regulate the frictional force of expansion set and adapter sleeve and bearing, and then regulate the maximum delivered moment of torsion of adapter sleeve and bearing, can regulate the limit torque value of overload, to adapt to different operating mode like this.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the cross-sectional schematic of the travel unit overload protective device of coal-winning machine described in the embodiment of the present invention.
Description of reference numerals:
1-adapter sleeve, 2-expansion set, 3-bearing, 4-major axis, 5-road wheel, 6-bolt, 7-end cap.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Fig. 1 is the cross-sectional schematic of the travel unit overload protective device of coal-winning machine described in the present embodiment, and as shown in FIG., the travel unit overload protective device described in the present embodiment comprises the first connector, the second connector and friction member.
First connector is connected with the low speed end of the transmission system of shearer hauled-part, and low speed end described here is the output after slowing down of transmission system, and in the present embodiment, this first connector is the adapter sleeve 1 that inner surface engages with this low speed end.
Second connector is connected with the road wheel 5 of Walk Part of Shearer by major axis 4, in the present embodiment, this second connector is the bearing 3 in tubular structure that one end open is closed in an one end, coordinating of this bearing 3 and major axis 4 is that square hole axle coordinates, namely a square opening coaxial with major axis 4 is provided with at the blind end of this bearing 3, and the square head corresponding with this square opening is provided with in one end of this major axis 4, this bearing 3 and major axis 4 coordinate transmitting torque by this square opening and square head; In the openend of this bearing 3, be also provided with a detachable end 7.And the other end of this major axis 4 is connected with road wheel 5 by spline.
The rubbing surface of friction member is pressed on the first connector and the second connector respectively.Concrete, friction member is the expansion set 2 of a hollow cylindrical, and this expansion set 2 is socketed on the external surface of adapter sleeve 1, and namely the inner core face of this expansion set 2 and the external surface of adapter sleeve 1 are by frictional force transmitting torque; The urceolus face of this expansion set 2 and the inner surface of bearing 3 closely cooperate, and namely the urceolus face of this expansion set 2 and the inner surface of bearing 3 are also by frictional force transmitting torque; Also be provided with multiple for regulating the bolt 6 of expansion set 2 diameter along its diametric(al) at the external surface of this expansion set 2, thus can by regulating the contact area of expansion set 2 and adapter sleeve 1 and bearing 3 to the adjustment of expansion set 2 diameter, thus regulate the frictional force of expansion set 2 and adapter sleeve 1 and bearing 3, and then regulate the maximum delivered moment of torsion of adapter sleeve 1 and bearing 3, can regulate the limit torque value of overload, to adapt to different operating mode like this.
When coal-winning machine runs into the obstacle of advancing caused compared with hard coal seam or other reasons in traveling process, because shearer haulage power does not change, resistance increases, now the transmission device of coal-winning machine can be subject to great load, and namely the part of overload serious threat is road wheel 5.Road wheel 5 produce moment of torsion can be delivered to expansion set 2 by parts such as major axis 4, bearings 3, when expansion set 2 reaches the moment of torsion of restriction expansion set 2 with produce relative slip between bearing 3, adapter sleeve 1, and then ensure mine machine road wheel 5 avoid coming to harm.
As other embodiments of the present embodiment, the first connector and adapter sleeve 1, also coaxially can be connected with the low speed end of the transmission system of shearer hauled-part; Bearing 3 also can be connected for other polygonal hole axles with coordinating of major axis 4, as hexagonal hole axle is connected, can also be key connection etc.
Except the travel unit overload protective device of above-mentioned coal-winning machine, the present invention also provides a kind of coal-winning machine being provided with the travel unit overload protective device of above-mentioned coal-winning machine, and the structural reference prior art of other each several part of this coal-winning machine, repeats no more herein.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the travel unit overload protective device of a coal-winning machine, it is characterized in that, comprise the first connector, the second connector and friction member, described first connector is connected with the low speed end of the transmission system of described shearer hauled-part, described second connector is connected with the road wheel (5) of described Walk Part of Shearer by major axis (4), and the rubbing surface of described friction member is pressed on described first connector and the second connector respectively;
Described friction member is the expansion set (2) of a cylindrical shape, described first connector is the adapter sleeve (1) that external surface coordinates with the inner core face of described expansion set (2), and described second connector is the bearing (3) that inner surface coordinates with the urceolus face of described expansion set (2);
Be provided with multiple for regulating the bolt (6) of described expansion set (2) diameter along its diametric(al) at the external surface of described expansion set (2).
2. the travel unit overload protective device of coal-winning machine according to claim 1, is characterized in that, described adapter sleeve (1) engages with the low speed end of the transmission system of described Walk Part of Shearer or is coaxially connected.
3. the travel unit overload protective device of coal-winning machine according to claim 2, is characterized in that, described bearing (3) is that same axle key connects or polygonal shaft hole matching connects with the connection of described major axis (4).
4. the travel unit overload protective device of coal-winning machine according to claim 3; it is characterized in that; described bearing (3) is a tubular structure; be provided with the keyway or polygonal hole that coordinate with described major axis (4) at the blind end of described bearing (3), be provided with detachable end (7) in the openend of described bearing (3).
5. the travel unit overload protective device of coal-winning machine according to claim 4, is characterized in that, described polygonal hole is square opening or hexagonal hole.
6. a coal-winning machine, is characterized in that, described coal-winning machine is provided with the travel unit overload protective device as described in claim 1 to 5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310038871.8A CN103104257B (en) | 2013-01-31 | 2013-01-31 | Coal mining machine and travel unit overload protective device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310038871.8A CN103104257B (en) | 2013-01-31 | 2013-01-31 | Coal mining machine and travel unit overload protective device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103104257A CN103104257A (en) | 2013-05-15 |
| CN103104257B true CN103104257B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310038871.8A Active CN103104257B (en) | 2013-01-31 | 2013-01-31 | Coal mining machine and travel unit overload protective device thereof |
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| Country | Link |
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| CN (1) | CN103104257B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251138A (en) * | 2013-06-27 | 2014-12-31 | 三一重型装备有限公司 | Coal cutter walking portion and coal cutter |
| CN104453891B (en) * | 2014-08-18 | 2017-05-17 | 三一重型装备有限公司 | Coal mining machine and cutting part thereof |
| CN104453890B (en) * | 2014-09-17 | 2018-03-02 | 三一重型装备有限公司 | Coal-winning machine and its running part |
| CN104595383A (en) * | 2014-12-31 | 2015-05-06 | 太重煤机有限公司 | Coal mining machine traction clutch device with overload protection function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2088442A (en) * | 1980-11-15 | 1982-06-09 | Gewerk Eisenhuette Westfalia | Improvements in Overload Protection for the Drive of Mining Equipment |
| CN1894516A (en) * | 2003-12-13 | 2007-01-10 | Sms迪马格股份公司 | Security coupling in particular for main drivetrains on rolling stands |
| CN201255194Y (en) * | 2008-08-15 | 2009-06-10 | 张大林 | Composite coupler |
| CN102032283A (en) * | 2010-12-30 | 2011-04-27 | 三一重工股份有限公司 | Ball-cage type universal coupling and full-hydraulic grader |
| CN202326799U (en) * | 2011-11-18 | 2012-07-11 | 成都思茂科技有限公司 | Torsion coupler |
| CN102562058A (en) * | 2011-12-05 | 2012-07-11 | 三一重型装备有限公司 | Overload protecting device for running wheel of coal mining machine and coal mining machine provided with overload protecting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002037434A (en) * | 2000-07-19 | 2002-02-06 | Nifuko Plant Kk | Rotating shaft of conveyer |
-
2013
- 2013-01-31 CN CN201310038871.8A patent/CN103104257B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2088442A (en) * | 1980-11-15 | 1982-06-09 | Gewerk Eisenhuette Westfalia | Improvements in Overload Protection for the Drive of Mining Equipment |
| CN1894516A (en) * | 2003-12-13 | 2007-01-10 | Sms迪马格股份公司 | Security coupling in particular for main drivetrains on rolling stands |
| CN201255194Y (en) * | 2008-08-15 | 2009-06-10 | 张大林 | Composite coupler |
| CN102032283A (en) * | 2010-12-30 | 2011-04-27 | 三一重工股份有限公司 | Ball-cage type universal coupling and full-hydraulic grader |
| CN202326799U (en) * | 2011-11-18 | 2012-07-11 | 成都思茂科技有限公司 | Torsion coupler |
| CN102562058A (en) * | 2011-12-05 | 2012-07-11 | 三一重型装备有限公司 | Overload protecting device for running wheel of coal mining machine and coal mining machine provided with overload protecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103104257A (en) | 2013-05-15 |
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Inventor after: Ke Nuoer Inventor after: Dai Yulong Inventor after: Tong Hailong Inventor before: Dai Yulong Inventor before: Jia Anpeng Inventor before: Tong Hailong |
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Free format text: CORRECT: INVENTOR; FROM: LUO JUAN SONG GUOXIN HUANG YI TO: KE NUO R LUO JUAN HUANG YI |
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