CN210799907U - Explosion-proof speed reducer - Google Patents
Explosion-proof speed reducer Download PDFInfo
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- CN210799907U CN210799907U CN201921759575.6U CN201921759575U CN210799907U CN 210799907 U CN210799907 U CN 210799907U CN 201921759575 U CN201921759575 U CN 201921759575U CN 210799907 U CN210799907 U CN 210799907U
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Abstract
The utility model discloses an explosion-proof speed reducer, including box, base, buffering axle right, drive shaft right. First shaft hole and first mounting groove have been seted up to the top of box is vertical, the central axis of first shaft hole and first mounting groove all coincides with the central axis of symmetry at box top mutually. The transmission shaft and the first drive gear, adopt double bond connection between the first drive gear, and between input shaft and the second drive gear, all adopt double bond connection between output shaft and the second drive gear, can guarantee the joint strength of each gear engagement of speed reducer, and output shaft and input shaft all are in same axis, each part structure looks zonulae occludens, form two-stage coaxial structure, the embedding is between box and base, the advantage that has high torque, high stability, high leakproofness, box and base except the output shaft, the equal closed connection of the part that the input shaft extends, rigidity and toughness are good, guarantee its good blast resistance.
Description
Technical Field
The utility model belongs to the technical field of the speed reducer, concretely relates to explosion-proof type speed reducer.
Background
The speed reducer plays the roles of speed matching and torque transmission between the prime motor and the working machine, and achieves the purpose of speed reduction on the driving of the prime motor, thereby ensuring the stable operation of the working machine. The driving structure and the base of the speed reducer are different according to the types of equipment and the practical application environment, the speed reducer used for the electric mine car needs to be suitable for the working environment under a mine and work for a long time, the speed reducer needs to have high sealing performance, high torque and good explosion resistance, the planetary reducer has the characteristics of light weight, good safety and stability and high torque, the existing electric mine car also uses the planetary reducer as a speed reducing device, however, the planetary reducer generally operates by engaging a plurality of gears, and has a complex structure, resulting in poor explosion-proof performance, in addition, the falling objects in the mine are large, the mine car needs to run for a long time, and once the planetary reducer is stressed, part of parts are slightly dislocated, so that the application effect of the planetary reducer is deteriorated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an explosion-proof formula speed reducer to solve the problem that proposes among the above-mentioned background art.
This utility model adopts for achieving the above purpose:
an explosion-proof speed reducer comprising:
the top of the box body is vertically provided with a first shaft hole and a first mounting groove;
the base is connected to the bottom of the box body in a closed embedded mode, a second shaft hole matched with the first shaft hole in an opposite mode and a second installation groove matched with the first installation groove in an opposite mode are vertically formed in the middle of the base, the vertical central axis of the first shaft hole is coaxial with the vertical central axis of the second shaft hole, and the vertical central axis of the first installation groove is coaxial with the vertical central axis of the second installation groove;
the buffer shaft pair consists of a first shaft connecting plate which is embedded and fixed on the first mounting groove, a second shaft connecting plate which is embedded and fixed on the second mounting groove, first cylindrical roller bearings which are arranged at the bottom of the first shaft connecting plate and at the top of the second shaft connecting plate, a transmission shaft which is embedded between the two first cylindrical roller bearings and can rotate around the axis of the transmission shaft, a first driving gear which is connected on the transmission shaft and coaxially rotates with the transmission shaft, and a first transmission gear which is connected on the transmission shaft and coaxially rotates with the transmission shaft and is positioned right below the first driving gear, the transmission shaft is provided with annular baffles which are parallel and spaced at equal intervals, the annular baffles at the upper end and the lower end of the transmission shaft are respectively connected with the first cylindrical roller bearings in the first mounting groove and the second mounting groove, the first driving gear is arranged between the two annular baffles at the upper part of the transmission shaft, and the first driving gear is arranged between the two annular baffles at the lower part of the transmission shaft;
the driving shaft pair comprises a first fixed bearing which is embedded and fixed on the first shaft hole, a second fixed bearing which is embedded and fixed on the second shaft hole, a connecting bearing arranged at the bottom end of the first fixed bearing, angular contact ball bearings which are respectively arranged at the top end of the second fixed bearing and the bottom end of the connecting bearing, an output shaft embedded in the first fixed bearing, an input shaft embedded in the second fixed bearing, and a second cylindrical roller bearing arranged between the input shaft and the output shaft, wherein the upper end of the output shaft is embedded into the angular contact ball bearings at the upper part of the output shaft, the connecting bearing and the first fixed bearing and extends out of the first fixed bearing, the lower end of the side wall of the output shaft is connected with a second transmission gear which is oppositely meshed with the first driving gear, a cylindrical opening is formed at the bottom of the output shaft, the top end of the input shaft is embedded in the cylindrical opening, and the second cylindrical roller bearing is embedded between the side wall, the output shaft and the input shaft are embedded between the box body and the base at intervals through a second cylindrical roller bearing, the lower end of the input shaft is embedded into an angular contact ball bearing, the second cylindrical roller bearing and a second fixed bearing at the bottom of the input shaft and extends out of the second fixed bearing, and a second driving gear which is oppositely meshed with the first driving gear is connected to the input shaft.
It is further explained that the central axes of the first shaft hole and the first mounting groove are coincident with the central axis of symmetry of the top of the box body.
It is further explained that the vertical central axes of the first cylindrical roller bearing, the transmission shaft, the first driving gear and the first transmission gear are coaxial.
Further, vertical central axes of the first fixed bearing, the second fixed bearing, the connecting bearing, the output shaft, the input shaft, the angular contact ball bearing, the second cylindrical roller bearing, the second driving gear and the second transmission gear are coaxial.
It is further explained that the transmission shaft and the first driving gear, and the transmission shaft and the first driving gear are connected in a double-key connection mode.
The output shaft and the second transmission gear are connected in a double-key connection mode, and the input shaft and the second driving gear are connected in a double-key connection mode.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the transmission shaft and the first drive gear, adopt double bond connection between the first drive gear, and between input shaft and the second drive gear, all adopt double bond connection between output shaft and the second drive gear, can guarantee the joint strength of each gear engagement of speed reducer, and output shaft and input shaft all are in same axis, each part structure looks zonulae occludens, form two-stage coaxial structure, the embedding is between box and base, the advantage that has high torque, high stability, high leakproofness, box and base except the output shaft, the equal closed connection of the part that the input shaft extends, rigidity and toughness are good, guarantee its good blast resistance.
Drawings
The accompanying drawings 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 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of a pair of buffer shafts and a pair of driving shafts in the present invention;
fig. 3 is a schematic structural diagram of a pair of buffer shafts according to the present invention;
fig. 4 is a schematic structural diagram of a pair of driving shafts in the present invention;
fig. 5 is a sectional structure diagram of the utility model;
wherein: 1. a box body; 101. a first shaft hole; 102. a first mounting groove; 2. a base; 201. a second shaft hole; 202. a second mounting groove; 3. a pair of buffer shafts; 301. a first bearing plate; 302. a second shaft connecting plate; 303. a first cylindrical roller bearing; 304. a drive shaft; 305. a first drive gear; 306. a first drive gear; 307. an annular baffle; 4. a pair of drive shafts; 401. a first fixed bearing; 402. a second fixed bearing; 403. connecting a bearing; 404. angular contact ball bearings; 405. an output shaft; 406. an input shaft; 407. a second cylindrical roller bearing; 408. a cylindrical opening; 409. a second transmission gear; 410. a second drive gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides the following technical solutions:
an explosion-proof speed reducer comprises a box body 1, a base 2, a buffer shaft pair 3 and a driving shaft pair 4. A first shaft hole 101 and a first mounting groove 102 are vertically formed in the top of the box body 1, and the central axes of the first shaft hole 101 and the first mounting groove 102 are coincident with the central axis of symmetry of the top of the box body 1; the base 2 is connected to the bottom of the box body 1 in a sealing and embedding manner, a second shaft hole 201 which is opposite to and matched with the first shaft hole 101 and a second mounting groove 202 which is opposite to and matched with the first mounting groove 102 are vertically formed in the middle of the base, the vertical central axis of the first shaft hole 101 is coaxial with the vertical central axis of the second shaft hole 201, and the vertical central axis of the first mounting groove 102 is coaxial with the vertical central axis of the second mounting groove 202; wherein, the box body 1 and the base 2 are both molded by QT400-18 ball-milling cast iron and are jointly used as a bearing box body of the speed reducer.
The buffer shaft pair 3 is composed of a first shaft connecting plate 301 which is embedded and fixed on the first mounting groove 102, a second shaft connecting plate 302 which is embedded and fixed on the second mounting groove 202, a first cylindrical roller bearing 303 which is arranged at the bottom of the first shaft connecting plate 301 and the top of the second shaft connecting plate 302, a transmission shaft 304 which is embedded between the two first cylindrical roller bearings 303 and can rotate around the self axis, a first driving gear 305 which is connected on the transmission shaft 304 and rotates coaxially with the transmission shaft 304, and a first transmission gear 306 which is connected on the transmission shaft 304 and rotates coaxially with the transmission shaft 304 and is positioned under the first driving gear 305, annular baffles 307 which are parallel and spaced at equal intervals are formed on the transmission shaft 304, the annular baffles 307 at the upper end and the lower end of the transmission shaft 304 are respectively connected with the first cylindrical roller bearings 303 in the first mounting groove 102 and the second mounting groove 202, the first driving gear 305 is arranged, the first transmission gear 306 is arranged between the two annular baffles 307 at the lower part of the transmission shaft 304; the vertical central axes of the first cylindrical roller bearing 303, the transmission shaft 304, the first driving gear 305 and the first transmission gear 306 are coaxial, the transmission shaft 304 and the first driving gear 305 and the transmission shaft 304 and the first transmission gear 306 are connected in a double-key connection mode, the upper end and the lower end of the transmission shaft 304 are respectively limited in the first cylindrical roller bearing 303 below the first bearing plate 301 and the first cylindrical roller bearing 303 above the second bearing plate 302, and the first driving gear 305, the second driving gear 410 and the transmission shaft 304 can coaxially rotate in the same direction.
The drive shaft pair 4 is composed of a first fixed bearing 401 which is fixedly embedded on a first shaft hole 101, a second fixed bearing 402 which is fixedly embedded on a second shaft hole 201, a connecting bearing 403 which is arranged at the bottom end of the first fixed bearing 401, an angular contact ball bearing 404 which is respectively arranged at the top end of the second fixed bearing 402 and the bottom end of the connecting bearing 403, an output shaft 405 which is embedded in the first fixed bearing 401, an output shaft 406 which is embedded in the second fixed bearing 402, and a second cylindrical roller bearing 407 which is arranged between the output shaft 406 and the output shaft 405, the upper end of the output shaft 405 is embedded in the angular contact ball bearing 404 which is arranged at the upper part of the output shaft, the connecting bearing 403, the first fixed bearing 401 and extends out of the first fixed bearing 401, the lower end of the side wall of the output shaft 405 is connected with a second transmission gear 409 which is engaged with the first drive gear 305 in a relative position, a cylindrical opening 408 is formed at the bottom of the output shaft 405, the top end of the output shaft 406 is embedded in the cylindrical opening 408, the top end of the output shaft 406 and the first fixed bearing 401, a second cylindrical roller bearing 407 which is embedded in the cylindrical opening 408, a cylindrical roller bearing 405, a second cylindrical roller bearing 405 which is embedded in the cylindrical bearing 406, the output shaft 406 is embedded in the cylindrical bearing 405, the output shaft 406 is embedded in the cylindrical bearing 405, the cylindrical bearing is embedded in the cylindrical bearing 400, the cylindrical bearing 405, the output shaft 406, the cylindrical bearing is embedded in the cylindrical bearing 406, the cylindrical bearing 405, the cylindrical bearing 406, the cylindrical bearing 400, the output shaft bearing is embedded in the output shaft 406, the cylindrical bearing 400, the output shaft 406, the cylindrical bearing is embedded in the cylindrical bearing, the cylindrical bearing 400, the cylindrical bearing, the.
In addition, the structures of the buffer shaft pair 3 and the drive shaft pair 4 which are connected with each other are lubricated by using engine oil, and the parts between the cylindrical opening 408 at the bottom of the output shaft 406 and the second cylindrical roller bearing 407 and between the second cylindrical roller bearing 407 and the output shaft 405 can be sealed by adopting high-temperature-resistant fluororubber oil seals, so that the engine oil for lubrication is ensured not to leak when the speed reducer runs at high speed.
When the output shaft device is used, the outer end of the output shaft 406 is connected with a prime motor, the outer end of the output shaft 405 is connected with a working machine, the output shaft 406 rotates under the driving of the prime motor, the output shaft 406 rotates in the second cylindrical roller bearing 407 to drive the second driving gear 410 to rotate, the second driving gear 410 drives the first transmission gear 306 to rotate, the transmission shaft 304 and the first driving gear 305 rotate coaxially under the rotation of the first transmission gear 306, the second transmission gear 409 meshed with the first driving gear 305 rotates synchronously to enable the output shaft 405 to rotate coaxially to output, and the second cylindrical roller bearing 407 enables the output shaft 405 and the output shaft 406 to rotate coaxially and asynchronously.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 (6)
1. An explosion-proof speed reducer, characterized by, includes:
the top of the box body (1) is vertically provided with a first shaft hole (101) and a first mounting groove (102);
the base (2) is connected to the bottom of the box body (1) in a closed and embedded mode, a second shaft hole (201) which is matched with the first shaft hole (101) in a relative position mode and a second installation groove (202) which is matched with the first installation groove (102) in a relative position mode are vertically formed in the middle of the base, the vertical central axis of the first shaft hole (101) is coaxial with the vertical central axis of the second shaft hole (201), and the vertical central axis of the first installation groove (102) is coaxial with the vertical central axis of the second installation groove (202);
the buffer shaft pair (3) comprises a first shaft connecting plate (301) which is fixedly embedded on the first mounting groove (102), a second shaft connecting plate (302) which is fixedly embedded on the second mounting groove (202), first cylindrical roller bearings (303) arranged at the bottom of the first shaft connecting plate (301) and the top of the second shaft connecting plate (302), a transmission shaft (304) which is embedded between the two first cylindrical roller bearings (303) and can rotate around the axis of the transmission shaft, a first driving gear (305) which is connected to the transmission shaft (304) and coaxially rotates with the transmission shaft (304), and a first transmission gear (306) which is connected to the transmission shaft (304) and coaxially rotates with the transmission shaft (304) and is positioned right below the first driving gear (305), annular baffles (307) which are parallel and equidistantly spaced are formed on the transmission shaft (304), the annular baffles (307) at the upper end and the lower end of the transmission shaft (304) are respectively connected with the first mounting groove (102), The first cylindrical roller bearings (303) in the second mounting groove (202) are connected, the first driving gear (305) is arranged between the two annular baffles (307) at the upper part of the transmission shaft (304), and the first transmission gear (306) is arranged between the two annular baffles (307) at the lower part of the transmission shaft (304);
the driving shaft pair (4) is composed of a first fixed bearing (401) which is fixedly embedded on the first shaft hole (101), a second fixed bearing (402) which is fixedly embedded on the second shaft hole (201), a connecting bearing (403) arranged at the bottom end of the first fixed bearing (401), angular contact ball bearings (404) which are respectively arranged at the top end of the second fixed bearing (402) and the bottom end of the connecting bearing (403), an output shaft (405) embedded in the first fixed bearing (401), an input shaft (406) embedded in the second fixed bearing (402), and a second cylindrical roller bearing (407) arranged between the input shaft (406) and the output shaft (405), wherein the upper end of the output shaft (405) is embedded into the angular contact ball bearing (404) at the upper part of the output shaft (405), the connecting bearing (403), the first fixed bearing (401) and extends out of the first fixed bearing (401), and the lower end of the side wall of the output shaft (405) is connected with a second transmission gear which is meshed with the first driving gear (409) The bottom of the output shaft (405) is provided with a cylindrical opening (408), the top end of the input shaft (406) is embedded into the cylindrical opening (408), a second cylindrical roller bearing (407) is embedded between the side wall of the input shaft (406) and the side wall of the cylindrical opening (408), the output shaft (405) and the input shaft (406) are embedded between the box body (1) and the base (2) at intervals through the second cylindrical roller bearing (407), the lower end of the input shaft (406) is embedded into an angular contact ball bearing (404), the second cylindrical roller bearing (407) and a second fixed bearing (402) at the bottom of the input shaft and extends out of the second fixed bearing (402), and a second driving gear (410) which is meshed with the first driving gear (306) in a relative position is connected to the input shaft (406).
2. An explosion-proof speed reducer according to claim 1, characterized in that: the central axes of the first shaft hole (101) and the first mounting groove (102) are coincident with the central axis of symmetry at the top of the box body (1).
3. An explosion-proof speed reducer according to claim 1, characterized in that: the vertical central axes of the first cylindrical roller bearing (303), the transmission shaft (304), the first driving gear (305) and the first transmission gear (306) are coaxial.
4. An explosion-proof speed reducer according to claim 1, characterized in that: the vertical central axes of the first fixed bearing (401), the second fixed bearing (402), the connecting bearing (403), the output shaft (405), the input shaft (406), the angular contact ball bearing (404), the second cylindrical roller bearing (407), the second driving gear (410) and the second transmission gear (409) are coaxial.
5. An explosion-proof speed reducer according to claim 1, characterized in that: the transmission shaft (304) is connected with the first driving gear (305) and the transmission shaft (304) is connected with the first driving gear (306) in a double-key connection mode.
6. An explosion-proof speed reducer according to claim 1, characterized in that: the output shaft (405) is connected with the second transmission gear (409) in a double-key connection mode, and the input shaft (406) is connected with the second driving gear (410).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921759575.6U CN210799907U (en) | 2019-10-18 | 2019-10-18 | Explosion-proof speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921759575.6U CN210799907U (en) | 2019-10-18 | 2019-10-18 | Explosion-proof speed reducer |
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| Publication Number | Publication Date |
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| CN210799907U true CN210799907U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921759575.6U Active CN210799907U (en) | 2019-10-18 | 2019-10-18 | Explosion-proof speed reducer |
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| CN (1) | CN210799907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211991A (en) * | 2020-10-29 | 2021-01-12 | 广东卓宏达智能传动科技有限公司 | Concentric speed reducer and mine transfer mechanical trolley |
-
2019
- 2019-10-18 CN CN201921759575.6U patent/CN210799907U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211991A (en) * | 2020-10-29 | 2021-01-12 | 广东卓宏达智能传动科技有限公司 | Concentric speed reducer and mine transfer mechanical trolley |
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