CN217977251U - Transmission mechanism and coal mining machine with same - Google Patents
Transmission mechanism and coal mining machine with same Download PDFInfo
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- CN217977251U CN217977251U CN202221722588.8U CN202221722588U CN217977251U CN 217977251 U CN217977251 U CN 217977251U CN 202221722588 U CN202221722588 U CN 202221722588U CN 217977251 U CN217977251 U CN 217977251U
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Abstract
The utility model provides a drive mechanism and have its coal-winning machine, including power component, one-level planetary reducer and the second grade planetary reducer who connects gradually, second grade planetary reducer includes: the bearing seat is provided with a positioning bulge; the bearing seat is arranged at the end part of the inner gear ring, the inner gear ring is provided with a positioning groove, and at least part of the positioning bulge is inserted in the positioning groove; and the plurality of planetary wheel sets are sequentially arranged around the planet carrier of the secondary planetary reducer and are all meshed with the inner gear ring. The utility model provides a coal-winning machine among the prior art's problem that life is low.
Description
Technical Field
The utility model relates to a coal mining technical field particularly, relates to a drive mechanism and have its coal-winning machine.
Background
At present, in the process of coal mining, because the height of an underground fully mechanized coal mining face is larger, the strength of each part of a coal mining machine is improved, so that the overall weight of the coal mining machine is greatly increased, and the reliability of a traction mechanism of the coal mining machine is required to be higher.
Most of the existing traction mechanisms of the coal mining machine transmit power to a rack rail wheel through an input end traction transmission mechanism and an output end planetary reducer assembly by a driving motor, and the rack rail is meshed with a pin row of a scraper conveyor so as to drive the coal mining machine to travel.
However, because the whole machine body is too heavy, the tractor of the coal mining machine in the prior art has large traction resistance and quick loss, and the service life of the coal mining machine is shortened.
SUMMERY OF THE UTILITY MODEL
A main object of the utility model is to provide a drive mechanism and have its coal-winning machine to solve the problem that the life of the coal-winning machine among the prior art is low.
In order to achieve the above object, according to the utility model discloses an aspect provides a transmission mechanism, including power component, one-level planetary reducer and the second grade planetary reducer who connects gradually, second grade planetary reducer includes: the bearing seat is provided with a positioning bulge; the bearing seat is arranged at the end part of the inner gear ring, the inner gear ring is provided with a positioning groove, and at least part of the positioning bulge is inserted in the positioning groove; and the plurality of planetary wheel sets are sequentially arranged around the planet carrier of the secondary planetary reducer and are all meshed with the inner gear ring.
Furthermore, a plurality of positioning bulges are arranged at intervals along the circumferential direction of the bearing seat in sequence; the positioning grooves are arranged in a plurality of corresponding one-to-one correspondence to the positioning bulges.
Furthermore, the bearing seats comprise a first bearing seat and a second bearing seat which are oppositely arranged along the axial direction of the planet carrier, and the first bearing seat and the second bearing seat are respectively arranged at two ends of the internal gear ring along the axial direction; positioning protrusions are arranged on the first bearing seat and the second bearing seat, and positioning grooves are formed in two ends of the inner gear ring respectively.
Further, the two-stage planetary reducer further includes: the cylindrical roller bearing is sleeved at the first end of the planet carrier and is connected with the first bearing seat; and the self-aligning bearing is sleeved at the second end of the planet carrier and is connected with the second bearing seat.
Further, each of the planetary gear sets includes: at least two planet wheels, at least two planet wheels set gradually along the axis direction of planet carrier, and at least two planet wheels all mesh with the ring gear.
Further, the transmission mechanism further comprises: and the transmission assembly is arranged between the power assembly and the primary planetary reducer and is respectively connected with a driving shaft of the power assembly and an input shaft of the primary planetary reducer.
Further, the cover is equipped with first gear on power component's the drive shaft, is provided with sun gear on the one-level planetary reducer, and transmission assembly includes: and the idle gear is meshed with the first gear and the central gear respectively.
Further, the transmission assembly further comprises: the traction shaft is sleeved with a second gear and a third gear, the idler gear is meshed with the first gear and the second gear respectively, and the third gear is meshed with the central gear.
According to the utility model discloses an on the other hand provides a coal-winning machine, including casing and drive mechanism, drive mechanism sets up in the casing, and drive mechanism is foretell drive mechanism.
Further, the coal mining machine further comprises: and the output end of a secondary planetary reducer of the transmission mechanism is connected with the travelling wheel.
By applying the technical scheme of the utility model, the transmission mechanism comprises a power component, a primary planetary reducer and a secondary planetary reducer which are connected in sequence, wherein the secondary planetary reducer comprises a bearing seat, an inner gear ring and a plurality of planetary wheel sets, and at least part of the positioning bulge of the bearing seat is inserted into the positioning groove; the plurality of planetary wheel sets are sequentially arranged around the planet carrier of the secondary planetary reducer, and the plurality of planetary wheel sets are all meshed with the inner gear ring. Through positioning groove and the protruding setting in location, make the joint strength and the positioning accuracy of ring gear and bearing frame promote by a wide margin, compare in traditional spline connection mode and can bear bigger heavy burden to improve drive mechanism's life.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural view of an embodiment of the transmission mechanism according to the invention;
fig. 2 shows a schematic structural view of a two-stage planetary gear unit of the transmission according to the invention;
fig. 3 shows a schematic structural view of the transmission mechanism installed in the casing according to the present invention.
Wherein the figures include the following reference numerals:
1. a power assembly; 2. a primary planetary reducer; 3. a secondary planetary reducer; 30. a bearing seat; 301. positioning the projection; 31. an inner gear ring; 310. a positioning groove; 32. a planetary gear set; 33. a planet carrier; 302. a first bearing housing; 303. a second bearing housing; 34. a cylindrical roller bearing; 35. a self-aligning bearing; 320. a planet wheel; 4. a transmission assembly; 10. a first gear; 20. a sun gear; 40. an idler pulley; 41. a traction shaft; 410. a second gear; 411. a third gear; 100. a casing.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 3, the present invention provides a transmission mechanism, which includes a power assembly 1, a first-stage planetary reducer 2 and a second-stage planetary reducer 3, the second-stage planetary reducer 3 includes: the bearing seat 30 is provided with a positioning bulge 301; the inner gear 31, the bearing seat 30 is arranged at the end part of the inner gear 31, the inner gear 31 is provided with a positioning groove 310, and at least part of the positioning bulge 301 is inserted in the positioning groove 310; a plurality of planetary gear sets 32 are sequentially provided around a carrier 33 of the secondary planetary gear reducer 3, and the plurality of planetary gear sets 32 are all engaged with the ring gear 31.
According to the utility model provides a transmission mechanism, including power component 1, one-level planetary reducer 2 and the second grade planetary reducer 3 that connect gradually, wherein, second grade planetary reducer 3 includes bearing frame 30, ring gear 31 and a plurality of planetary wheel set 32, and bearing frame 30 sets up the tip at ring gear 31, is provided with location arch 301 on the bearing frame 30, is provided with positioning groove 310 on the ring gear 31, and at least part of location arch 301 inserts and establishes in positioning groove 310; a plurality of planetary gear sets 32 are sequentially provided around a carrier 33 of the secondary planetary gear reducer 3, and the plurality of planetary gear sets 32 are all meshed with the ring gear 31. Through the setting of positioning groove 310 and positioning protrusion 301, make the joint strength and the positioning accuracy of ring gear 31 and bearing frame 30 promote by a wide margin, compare and can bear bigger heavy burden in traditional spline connection mode to improve drive mechanism's life.
Preferably, the number of the positioning protrusions 301 is multiple, and the multiple positioning protrusions 301 are sequentially arranged at intervals along the circumferential direction of the bearing seat 30; the number of the positioning grooves 310 is plural, and the plurality of positioning grooves 310 and the plurality of positioning protrusions 301 are arranged in one-to-one correspondence. Therefore, the gear structures can be formed on the bearing seat 30 and the inner gear ring 31, so that the bearing seat 30 and the inner gear ring 31 form gear fit, and the bearing weight of the transmission mechanism is improved.
In a specific implementation process, the bearing seat 30 includes a first bearing seat 302 and a second bearing seat 303 which are oppositely arranged along the axial direction of the planet carrier 33, and the first bearing seat 302 and the second bearing seat 303 are respectively arranged at two ends of the ring gear 31 along the axial direction; the first bearing seat 302 and the second bearing seat 303 are both provided with positioning protrusions 301, and two ends of the ring gear 31 are respectively provided with positioning grooves 310. By arranging the positioning grooves 310 at both ends of the internal gear ring 31, both ends of the internal gear ring 31 are respectively inserted into the first bearing seat 302 and the second bearing seat 303, so that the positioning accuracy between the internal gear ring 31 and the first bearing seat 302 and the second bearing seat 303 is improved.
In the present application, the secondary planetary reducer 3 further includes: a cylindrical roller bearing 34 sleeved on a first end of the planet carrier 33 and connected with the first bearing seat 302; and the self-aligning bearing 35 is sleeved at the second end of the planet carrier 33 and is connected with the second bearing seat 303. The first bearing seat 302 is located at one end of the inner gear ring 31 close to the primary planetary reducer 2, and the cylindrical roller bearing 34 and the self-aligning bearing 35 are matched, so that the requirements of the transmission mechanism on bearing capacity and positioning accuracy are met, the adaptability to impact load in the walking process is fully considered, the self-aligning bearing 35 allows the transmission mechanism to be subjected to a trace non-concentric working condition caused by the spline shaft under the action of external complex impact load, and the reliability of the transmission mechanism is effectively improved.
In order to solve the contradiction between the bearing capacity and the machining precision of the planetary gear 320, each planetary gear set 32 includes: at least two planet wheels 320, at least two planet wheels 320 are arranged in sequence along the axis direction of the planet carrier 33, and at least two planet wheels 320 are all meshed with the annular gear 31. This arrangement enables the arrangement of the planet gears 320 to be compatible with the manner in which the inner ring gear 31 and the bearing housing 30 are engaged.
In the embodiment provided by the utility model, drive mechanism still includes: and the transmission assembly 4 is arranged between the power assembly 1 and the primary planetary reducer 2, and the transmission assembly 4 is respectively connected with a driving shaft of the power assembly 1 and an input shaft of the primary planetary reducer 2. The torque in the power assembly 1 is transmitted to the primary planetary reducer 2 and the secondary planetary reducer 3 through the transmission assembly 4.
Specifically, the driving shaft of the power assembly 1 is sleeved with a first gear 10, the primary planetary reducer 2 is provided with a sun gear 20, and the transmission assembly 4 comprises: the idle gear 40, the idle gear 40 meshes with the first gear 10 and the sun gear 20, respectively. Wherein, the driving shaft of the power assembly 1 drives the idle gear 40 to rotate, and the idle gear 40 drives the primary planetary reducer 2 to operate through the sun gear 20.
Further, the transmission assembly 4 further includes: the traction shaft 41 is sleeved with a second gear 410 and a third gear 411, the idle gear 40 is respectively meshed with the first gear 10 and the second gear 410, and the third gear 411 is meshed with the central gear 20. In the transmission process, the idle gear 40 drives the traction shaft 41 to rotate through the second gear 410, and the traction shaft 41 drives the sun gear 20 to rotate through the third gear 411, so as to drive the primary planetary reducer 2 to operate.
The utility model also provides a coal mining machine, including casing 100 and drive mechanism, drive mechanism sets up in casing 100, and drive mechanism is the drive mechanism of above-mentioned embodiment.
Wherein, coal-winning machine still includes: and the output end of a secondary planetary reducer 3 of the transmission mechanism is connected with the travelling wheels. In the transmission process, the sun gear in the central gear 20 drives the primary planetary reducer 2 to rotate, the sun gear in the primary planetary reducer 2 drives the secondary planetary reducer 3 to rotate, and finally, power is transmitted to the traveling wheel, so that the coal mining machine travels.
The coal mining machine in the application circularly walks on the left and right sides of the working face to work, in order to meet production efficiency, the transmission mechanism is kept in a high-speed running state for a long time and bears alternating load, and the fatigue resistance life of the tooth surface and the bearing life are checked according to the working condition of the working face.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
according to the utility model provides a transmission mechanism, including power component 1, one-level planetary reducer 2 and the second grade planetary reducer 3 that connect gradually, wherein, second grade planetary reducer 3 includes bearing frame 30, ring gear 31 and a plurality of planetary wheel set 32, and bearing frame 30 sets up the tip at ring gear 31, is provided with location arch 301 on the bearing frame 30, is provided with positioning groove 310 on the ring gear 31, and at least part of location arch 301 inserts and establishes in positioning groove 310; a plurality of planetary gear sets 32 are sequentially arranged around a carrier 33 of the secondary planetary gear reducer 3, and the plurality of planetary gear sets 32 are all engaged with the ring gear 31. Through the setting of positioning groove 310 and positioning protrusion 301, make the joint strength and the positioning accuracy of ring gear 31 and bearing frame 30 promote by a wide margin, compare and can bear bigger heavy burden in traditional spline connection mode to improve drive mechanism's life.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a transmission mechanism, includes power component (1), one-level planetary reducer (2) and second grade planetary reducer (3) that connect gradually, its characterized in that, second grade planetary reducer (3) include:
the bearing seat (30), a positioning bulge (301) is arranged on the bearing seat (30);
the bearing seat (30) is arranged at the end part of the inner gear ring (31), a positioning groove (310) is formed in the inner gear ring (31), and at least part of the positioning protrusion (301) is inserted into the positioning groove (310);
the planetary gear sets (32) are sequentially arranged around a planetary carrier (33) of the secondary planetary reducer (3), and the planetary gear sets (32) are all meshed with the annular gear (31).
2. The transmission mechanism according to claim 1, wherein the positioning protrusions (301) are multiple, and the plurality of positioning protrusions (301) are sequentially arranged at intervals along the circumferential direction of the bearing seat (30);
the number of the positioning grooves (310) is multiple, and the plurality of the positioning grooves (310) and the plurality of the positioning bulges (301) are arranged in one-to-one correspondence.
3. The transmission mechanism according to claim 1, wherein the bearing seat (30) comprises a first bearing seat (302) and a second bearing seat (303) which are oppositely arranged along the axial direction of the planet carrier (33), and the first bearing seat (302) and the second bearing seat (303) are respectively arranged at two ends of the inner gear ring (31) along the axial direction;
and the first bearing seat (302) and the second bearing seat (303) are both provided with positioning protrusions (301), and two ends of the inner gear ring (31) are respectively provided with a positioning groove (310).
4. A transmission mechanism according to claim 3, wherein said secondary planetary reducer (3) further comprises:
the cylindrical roller bearing (34) is sleeved at the first end of the planet carrier (33) and is connected with the first bearing seat (302);
and the self-aligning bearing (35) is sleeved at the second end of the planet carrier (33) and is connected with the second bearing seat (303).
5. The transmission mechanism according to claim 1, characterized in that each of said planetary wheel sets (32) comprises:
the planet gear (320) is sequentially arranged along the axis direction of the planet carrier (33), and the planet gears (320) are meshed with the inner gear ring (31).
6. The transmission mechanism as claimed in claim 1, further comprising:
and the transmission assembly (4) is arranged between the power assembly (1) and the primary planetary reducer (2), and the transmission assembly (4) is connected with a driving shaft of the power assembly (1) and an input shaft of the primary planetary reducer (2) respectively.
7. Transmission mechanism according to claim 6, characterized in that a first gear (10) is sleeved on the driving shaft of said power assembly (1), a sun gear (20) is arranged on said primary planetary reducer (2), said transmission assembly (4) comprises:
an idler gear (40), the idler gear (40) meshing with the first gear (10) and the sun gear (20), respectively.
8. The transmission mechanism according to claim 7, characterized in that the transmission assembly (4) further comprises:
the traction mechanism comprises a traction shaft (41), a second gear (410) and a third gear (411) are sleeved on the traction shaft (41), the idle gear (40) is meshed with the first gear (10) and the second gear (410) respectively, and the third gear (411) is meshed with the central gear (20).
9. A shearer loader comprising a casing (100) and a transmission mechanism arranged in the casing (100), characterized in that the transmission mechanism is a transmission mechanism according to any one of claims 1 to 8.
10. The shearer loader of claim 9, further comprising:
and the output end of a secondary planetary reducer (3) of the transmission mechanism is connected with the travelling wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221722588.8U CN217977251U (en) | 2022-07-06 | 2022-07-06 | Transmission mechanism and coal mining machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221722588.8U CN217977251U (en) | 2022-07-06 | 2022-07-06 | Transmission mechanism and coal mining machine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217977251U true CN217977251U (en) | 2022-12-06 |
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ID=84275622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221722588.8U Active CN217977251U (en) | 2022-07-06 | 2022-07-06 | Transmission mechanism and coal mining machine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217977251U (en) |
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2022
- 2022-07-06 CN CN202221722588.8U patent/CN217977251U/en active Active
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