CN204327088U - Adopt the high-power coal cutter of 176mm pitch running gear - Google Patents
Adopt the high-power coal cutter of 176mm pitch running gear Download PDFInfo
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- CN204327088U CN204327088U CN201420617303.3U CN201420617303U CN204327088U CN 204327088 U CN204327088 U CN 204327088U CN 201420617303 U CN201420617303 U CN 201420617303U CN 204327088 U CN204327088 U CN 204327088U
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Abstract
The utility model discloses a kind of high-power coal cutter adopting 176mm pitch running gear, comprises body shell, traction running part, cutting units; Traction running part comprises tractive unit, running part, and cutting units comprises rocking arm, cutting drum; Described body shell adopts circular arc to bloat structure at planetary gear speed reducing mechanism place, convex camber is many faceted pebbles of arc surface, plane or multiple intersecting plane composition; Described running gear comprises running part casing, road wheel, guide slip shoe; Described road wheel circumferencial direction is uniformly distributed 11 gear teeth; Road wheel pitch is 176mm, and corresponding modulus is 56.02mm, and graduated arc string is thick is 87.6mm.The utility model adopts the high-power coal mining of 176mm pitch running gear, while can ensureing that underbelly has enough coal spaces excessively, effective control fuselage thickness and machine height, reduce the center of gravity of complete machine as far as possible, thus improve the stability under coal-winning machine lateral attitude.
Description
Technical field
The utility model belongs to coal mining device technical field, relates to a kind of coal-winning machine, particularly relates to a kind of high-power coal cutter adopting 176mm pitch running gear.
Background technology
Coal-winning machine is as coal mine production system equipment foremost, and not only production capacity will meet mine design requirement, also must can adapt to geological conditions complicated and changeable.In recent years, along with the slope thick seam exploitation work plane quantity of work plane inclination angle >=25 ° is on the increase, high-power coal cutter is often comparatively large due to deadweight, and bottleneck appears in hauling ability, cannot meet the production requirement of more than 25 ° work planes.
The deficiency of high-power coal cutter hauling ability, overweight relevant with coal-winning machine fuselage weight on the one hand, be because shearer haulage power exports too small relevant on the other hand.But coal-winning machine design tractive force and drag conveyor pin row also have close relationship.The pitch of the traction running gear of current coal-winning machine mainly contains two kinds: 125 (126) mm and 147mm, the pin row rated drawbar pull of two kinds of pitches can reach 600kN and 1000kN respectively, for thick coal-layer mining work plane, the hydraulic support of main employing 1750 width and corresponding 147mm pitch traction running gear, limit by 147mm pitch pin row tooth intensity, coal-winning machine maximum drawbar pull can not more than 1000kN.But the high-power coal cutter deadweight of more than 1800kW, often beyond 100t, causes complete machine to lead anharmonic ratio and cannot break through 1 times.According to theory calculate and on-the-spot application experience, the tractive force of 1000kN cannot meet the climbing demand of high-power coal cutter work plane more than 25 °, therefore, the hauling ability of existing coal-winning machine and drag conveyor traction engagement systems obviously can not meet slope thick seam exploitation needs.
In view of this, nowadays in the urgent need to designing a kind of high-power coal cutter adopting brand-new 176mm pitch running gear, during to ensure to coordinate with 176 pitch pin rows, by improving the tractive force allowable of walking wheel of coal cutter and pin row to about 1500kN, make to lead anharmonic ratio and break through 1 times, thus improve the Performance And Reliability of integrally dragging system.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of high-power coal mining adopting 176mm pitch running gear, while can ensureing that underbelly has enough coal spaces excessively, effective control fuselage thickness and machine height, reduce the center of gravity of complete machine as far as possible, thus improve the stability under coal-winning machine lateral attitude.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
Adopt a high-power coal cutter for 176mm pitch running gear, described coal-winning machine comprises: body shell, traction running part, cutting units; Traction running part comprises tractive unit, running part, and cutting units comprises rocking arm, cutting drum;
Described body shell adopts circular arc to bloat structure at planetary gear speed reducing mechanism place, convex camber is many faceted pebbles of arc surface, plane or multiple intersecting plane composition;
Described running gear comprises running part casing, road wheel, guide slip shoe; Described road wheel circumferencial direction is uniformly distributed 11 gear teeth; Road wheel pitch is 176mm, and corresponding modulus is 56.02mm, and graduated arc string is thick is 87.6mm;
Described guide slip shoe is provided with wearing layer, and wearing layer length adopts asymmetrical design, and below wearing layer length is more than 1.2 times of top wearing layer length;
Down-the-hole type wearing and tearing mark is furnished with near the guiding surface of described guide slip shoe two ends, the wearing and tearing of described down-the-hole type are designated and are arranged in blind hole near the guiding surface of guide slip shoe two ends, that process from below upward, and blind hole is circular hole or screwed hole or stepped counterbore or waist-shaped hole;
Described road wheel only can engage with the drag conveyor pin row of 176 ± 2mm pitch.
Adopt a high-power coal cutter for 176mm pitch running gear, described coal-winning machine comprises: body shell, traction running part, cutting units; Traction running part comprises tractive unit, running part, and cutting units comprises rocking arm, cutting drum;
Described body shell adopts circular arc to bloat structure at planetary gear speed reducing mechanism place, convex camber is many faceted pebbles of arc surface, plane or multiple intersecting plane composition;
Described running gear comprises running part casing, road wheel, guide slip shoe; Described road wheel circumferencial direction is uniformly distributed 11 gear teeth; Road wheel pitch is 176mm, and corresponding modulus is 56.02mm, and graduated arc string is thick is 87.6mm.
As a kind of preferred version of the present utility model, described guide slip shoe is provided with wearing layer, and wearing layer length adopts asymmetrical design.
As a kind of preferred version of the present utility model, described wearing layer comprises below wearing layer, top wearing layer, and below wearing layer length is more than 1.2 times of top wearing layer length.
As a kind of preferred version of the present utility model, be furnished with down-the-hole type wearing and tearing mark near the guiding surface of described guide slip shoe two ends, described down-the-hole type wearing and tearing are designated and are arranged in blind hole near the guiding surface of guide slip shoe two ends, that process from below upward.
As a kind of preferred version of the present utility model, described blind hole is circular hole or screwed hole or stepped counterbore or waist-shaped hole.
As a kind of preferred version of the present utility model, described road wheel only can engage with the drag conveyor pin row of 176 ± 2mm pitch.
The beneficial effects of the utility model are: a kind of high-power coal cutter adopting 176mm pitch running gear that the utility model proposes, by adopting the road wheel of 176mm pitch, can on the basis of existing 1.75m width hydraulic support frames type, tractive force allowable for coal-winning machine is exported within being increased to 1500kN, make high-power coal cutter lead anharmonic ratio and reach more than 1 times, thus realize high-power coal cutter in 25 ° of-35 ° of work planes operations and exploitation.
Accompanying drawing explanation
Fig. 1 is a kind of high-power coal cutter schematic diagram adopting 176mm pitch running gear of the utility model.
Fig. 2 is the 176mm pitch road wheel flank profil schematic diagram that the utility model adopts.
Fig. 3 is the utility model walking wheel of coal cutter and 176mm pitch pin row mesh schematic representation.
Detailed description of the invention
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Embodiment one
Refer to Fig. 1, the utility model discloses a kind of high-power coal cutter adopting 176mm pitch running gear, and described coal-winning machine comprises: body shell, traction running part, cutting units; Traction running part comprises tractive unit, running part, and cutting units comprises rocking arm, cutting drum.
Described body shell adopts circular arc to bloat structure at planetary gear speed reducing mechanism place, convex camber 1 is many faceted pebbles of arc surface, plane or multiple intersecting plane composition;
Described running gear comprises running part casing, road wheel 2, guide slip shoe; Described road wheel 2 circumferencial direction is uniformly distributed 11 gear teeth; Road wheel pitch is 176mm, and corresponding modulus is 56.02mm, and graduated arc string is thick is 87.6mm, as shown in Figure 2.
Described guide slip shoe is provided with wearing layer, and wearing layer length adopts asymmetrical design, and below wearing layer length is more than 1.2 times of top wearing layer length.
Down-the-hole type wearing and tearing mark is furnished with near the guiding surface of described guide slip shoe two ends, the wearing and tearing of described down-the-hole type are designated and are arranged in blind hole near the guiding surface of guide slip shoe two ends, that process from below upward, and blind hole is circular hole or screwed hole or stepped counterbore or waist-shaped hole.
Fig. 3 is 176mm pitch road wheel 2 and pin row 3 mesh schematic representation, and corresponding pin row 3 pitch is also necessary for 176 ± 2mm (described road wheel 2 only can engage with the drag conveyor pin row of 176 ± 2mm pitch).Described 176mm pitch road wheel and pin row are compared with existing 147mm pitch system, transverse tooth thickness significantly increases, thus the root bending intensity of the gear teeth increases, and improves tractive force allowable, thus the mode that high-power coal cutter can be exported by increasing tractive force realizes wide-angle climbing demand.
In sum, a kind of high-power coal cutter adopting 176mm pitch running gear that the utility model proposes, effectively can utilize the hydraulic support of 1.75m width the most general at present, owing to adding modulus, correspondingly add reference circle transverse tooth thickness, enhance dedendum strength, add effective traction, improve bending strength, improve the safety of transmission.Meanwhile, bloat structure by towing tank local, can effectively control fuselage thickness and machine height, make to reduce machine gravity and reduce, thus realize stability and the reliability of wide-angle climbing operation.
Here description of the present utility model and application is illustrative, not wants by scope restriction of the present utility model in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present utility model or substantive characteristics, the utility model can in other forms, structure, layout, ratio, and to realize with other assembly, material and parts.When not departing from the utility model scope and spirit, can other distortion be carried out here to disclosed embodiment and change.
Claims (7)
1. adopt a high-power coal cutter for 176mm pitch running gear, it is characterized in that, described coal-winning machine comprises: body shell, traction running part, cutting units; Traction running part comprises tractive unit, running part, and cutting units comprises rocking arm, cutting drum;
Described body shell adopts circular arc to bloat structure at planetary gear speed reducing mechanism place, convex camber is many faceted pebbles of arc surface, plane or multiple intersecting plane composition;
Described running gear comprises running part casing, road wheel, guide slip shoe; Described road wheel circumferencial direction is uniformly distributed 11 gear teeth; Road wheel pitch is 176mm, and corresponding modulus is 56.02mm, and graduated arc string is thick is 87.6mm;
Described guide slip shoe is provided with wearing layer, and wearing layer length adopts asymmetrical design, and below wearing layer length is more than 1.2 times of top wearing layer length;
Down-the-hole type wearing and tearing mark is furnished with near the guiding surface of described guide slip shoe two ends, the wearing and tearing of described down-the-hole type are designated and are arranged in blind hole near the guiding surface of guide slip shoe two ends, that process from below upward, and blind hole is circular hole or screwed hole or stepped counterbore or waist-shaped hole;
Described road wheel only can engage with the drag conveyor pin row of 176 ± 2mm pitch.
2. adopt a high-power coal cutter for 176mm pitch running gear, it is characterized in that, described coal-winning machine comprises: body shell, traction running part, cutting units; Traction running part comprises tractive unit, running part, and cutting units comprises rocking arm, cutting drum;
Described body shell adopts circular arc to bloat structure at planetary gear speed reducing mechanism place, convex camber is many faceted pebbles of arc surface, plane or multiple intersecting plane composition;
Described running gear comprises running part casing, road wheel, guide slip shoe; Described road wheel circumferencial direction is uniformly distributed 11 gear teeth; Road wheel pitch is 176mm, and corresponding modulus is 56.02mm, and graduated arc string is thick is 87.6mm.
3. the high-power coal cutter of employing 176mm pitch running gear according to claim 2, is characterized in that:
Described guide slip shoe is provided with wearing layer, and wearing layer length adopts asymmetrical design.
4. the high-power coal cutter of employing 176mm pitch running gear according to claim 3, is characterized in that:
Described wearing layer comprises below wearing layer, top wearing layer, and below wearing layer length is more than 1.2 times of top wearing layer length.
5. the high-power coal cutter of employing 176mm pitch running gear according to claim 2, is characterized in that:
Be furnished with down-the-hole type wearing and tearing mark near the guiding surface of described guide slip shoe two ends, described down-the-hole type wearing and tearing are designated and are arranged in blind hole near the guiding surface of guide slip shoe two ends, that process from below upward.
6. the high-power coal cutter of employing 176mm pitch running gear according to claim 5, is characterized in that:
Described blind hole is circular hole or screwed hole or stepped counterbore or waist-shaped hole.
7. the high-power coal cutter of employing 176mm pitch running gear according to claim 2, is characterized in that:
Described road wheel only can engage with the drag conveyor pin row of 176 ± 2mm pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617303.3U CN204327088U (en) | 2014-10-23 | 2014-10-23 | Adopt the high-power coal cutter of 176mm pitch running gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617303.3U CN204327088U (en) | 2014-10-23 | 2014-10-23 | Adopt the high-power coal cutter of 176mm pitch running gear |
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| CN204327088U true CN204327088U (en) | 2015-05-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843323A (en) * | 2018-08-13 | 2018-11-20 | 天地科技股份有限公司上海分公司 | Surface miner |
| CN110273683A (en) * | 2018-11-08 | 2019-09-24 | 中煤张家口煤矿机械有限责任公司 | Integral die-forged 201mm pitch drag conveyor pin rail |
-
2014
- 2014-10-23 CN CN201420617303.3U patent/CN204327088U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843323A (en) * | 2018-08-13 | 2018-11-20 | 天地科技股份有限公司上海分公司 | Surface miner |
| CN108843323B (en) * | 2018-08-13 | 2024-04-05 | 天地科技股份有限公司上海分公司 | Open-pit miner |
| CN110273683A (en) * | 2018-11-08 | 2019-09-24 | 中煤张家口煤矿机械有限责任公司 | Integral die-forged 201mm pitch drag conveyor pin rail |
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