CN212685246U - Novel rear power takeoff assembly - Google Patents
Novel rear power takeoff assembly Download PDFInfo
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- CN212685246U CN212685246U CN202020866399.2U CN202020866399U CN212685246U CN 212685246 U CN212685246 U CN 212685246U CN 202020866399 U CN202020866399 U CN 202020866399U CN 212685246 U CN212685246 U CN 212685246U
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- power takeoff
- shaft
- assembly
- cover
- shifting fork
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Abstract
The utility model discloses a novel rear power takeoff assembly, which comprises a shell assembly, wherein the shell assembly comprises a power takeoff shell and a power takeoff cover connected with the power takeoff shell; the shifting fork shaft is supported on the power takeoff cover, one end of the shifting fork shaft is connected with the shifting fork, and the other end of the shifting fork shaft is arranged in the piston and is connected with the return spring; the piston is arranged in the cylinder body, and the cylinder body is fixed on the power takeoff cover; one end of the return spring is connected with the shifting fork shaft, and the other end of the return spring is connected with the cylinder body; the hollow shaft is connected with an input gear through a needle bearing, the input gear is connected with an output gear shaft and transmits power, and one end of the output gear shaft is connected with a flange plate; one end of the input gear is connected with the meshing sleeve, and the other end of the input gear, which is positioned on the side of the power takeoff cover, is provided with an input gear retainer ring. The utility model discloses with derailleur main shaft rear bearing cap and auxiliary tank intermediate shaft bearing cap and power takeoff casing integrated as an organic whole, reduced the sealed area of assembly part and dispersion, both reduced assembly cost and be favorable to the holistic leakproofness of assembly again.
Description
Technical Field
The utility model belongs to the technical field of the power takeoff equipment, concretely relates to novel back power takeoff assembly.
Background
The power takeoff is mainly used for obtaining power from a vehicle chassis system, then transmitting the power to a vehicle oil pump system through a transmission shaft through self conversion, and further controlling the upper assembly to complete respective special functions. The power takeoff can be of various types according to different classification forms. There may be a front, a middle and a rear power takeoff depending on the location of installation. The six 20/25 ton crane model selection of the China UnionPay planning department matches with the Fashi special 8JS125TC speed changer. The transmission is limited by a structure with a small center distance of the auxiliary box, so that the transmission can not be matched with the conventional rear power takeoff assembly with the torque of 700Nm or above series at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel back power takeoff assembly to solve among the prior art Fashi special 8JS125TC derailleur because the little structural constraint of auxiliary tank centre-to-centre spacing, can't match the problem of the power takeoff assembly behind the current moment of torsion 700Nm and above series at present.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a novel rear power takeoff assembly comprises a shell assembly, a shifting fork shaft, a hollow shaft, an input gear and an output gear shaft, wherein the shifting fork shaft, the hollow shaft, the input gear and the output gear shaft are arranged in the shell assembly; the shell assembly comprises a power takeoff shell and a power takeoff cover connected with the power takeoff shell;
the shifting fork shaft is supported on the power takeoff cover, one end of the shifting fork shaft is connected with the shifting fork, and the other end of the shifting fork shaft is arranged in the piston and is connected with the return spring; the piston is arranged in the cylinder body, and the cylinder body is fixed on the power takeoff cover through a bolt; one end of the return spring is connected with the shifting fork shaft through a bolt, and the other end of the return spring is connected to the cylinder body;
the hollow shaft is connected with an input gear through a needle bearing, the input gear is connected with an output gear shaft and transmits power, and one end of the output gear shaft is connected with a flange plate; one end of the input gear is connected with the meshing sleeve, and the other end of the input gear, which is positioned on the side of the power takeoff cover, is provided with an input gear retainer ring.
Furthermore, a sealing baffle is arranged in the flange plate, and the flange plate and the sealing baffle are fixed on one end of the output gear shaft through bolts.
Furthermore, a vent plug is arranged on the cylinder body and connected with a pressure switch.
Furthermore, a second O-shaped ring is arranged between the piston and the cylinder body facing surface.
Furthermore, a third O-shaped ring is arranged between the power takeoff cover and the shifting fork shaft joint surface.
Furthermore, the power takeoff cover is provided with a bearing cover at the joint of the flange plate, and an oil seal is arranged at the joint of the bearing cover and the flange plate.
Furthermore, a supporting spring is arranged at the joint of the input gear and the meshing sleeve.
Furthermore, the two ends of the output gear shaft are respectively supported and positioned through a first cylindrical roller bearing and a second cylindrical roller bearing, the first cylindrical roller bearing is arranged in the power takeoff shell, and the second cylindrical roller bearing is arranged in the power takeoff cover.
Furthermore, a first O-shaped ring is arranged at the position of the facing surface of the sealing baffle and the flange.
Furthermore, the power takeoff shell is integrated with a transmission main shaft rear bearing cover and an auxiliary box intermediate shaft bearing cover.
The utility model has the advantages as follows:
1. the novel rear power takeoff assembly provided by the embodiment of the utility model comprises a shell assembly, wherein the shell assembly comprises a power takeoff shell and a power takeoff cover connected with the power takeoff shell; the shifting fork shaft is supported on the power takeoff cover, one end of the shifting fork shaft is connected with the shifting fork, and the other end of the shifting fork shaft is arranged in the piston and is connected with the return spring; the piston is arranged in the cylinder body, and the cylinder body is fixed on the power takeoff cover; one end of the return spring is connected with the shifting fork shaft, and the other end of the return spring is connected with the cylinder body; the hollow shaft is connected with an input gear through a needle bearing, the input gear is connected with an output gear shaft and transmits power, and one end of the output gear shaft is connected with a flange plate; one end of the input gear is connected with the meshing sleeve, and the other end of the input gear, which is positioned on the power takeoff cover side, is provided with an input gear retainer ring; the problem that the rear power takeoff assembly cannot be matched due to the structural limitation of small center distance of the auxiliary box of the transmission is solved, the Faste 8JS125TC transmission can be perfectly matched, and the requirements of the complete automobile factory of the middle-united re-department are met.
2. The embodiment of the utility model provides a novel back power takeoff assembly, with derailleur main shaft rear bearing cap and auxiliary tank jackshaft bearing cap and power takeoff casing integrated as an organic whole, reduced the sealed region of assembly part and dispersion, both reduced assembly cost and be favorable to the holistic leakproofness of assembly again.
3. The embodiment of the utility model provides a novel back power takeoff assembly can match eight little grades of series speed changers, and satisfies the demand that market is greater than or equal to 700Nm to the power takeoff maximum input torque.
4. According to the novel rear power takeoff assembly provided by the embodiment of the utility model, the first O-shaped ring can seal lubricating oil in the power takeoff to prevent the lubricating oil from flowing out from between the output gear shaft and the flange plate; the second O-shaped ring can divide the cylinder body into 2 cavities, and the power takeoff is shifted through air pressure; the third O-shaped ring can seal lubricating oil in the power takeoff to prevent the lubricating oil from flowing into the cylinder body between the shifting fork shaft and the power takeoff cover.
5. The embodiment of the utility model provides a novel back power takeoff assembly, simple structure, simple to operate and with the derailleur faying face wholeness good, thereby can reduce the oil leak risk with the sealed point overall seal of former dispersion.
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 is a schematic structural diagram of a novel rear power takeoff assembly provided in an embodiment of the present invention;
fig. 2 is a schematic view of an appearance structure of a novel rear power takeoff assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a power takeoff casing of the novel rear power takeoff assembly according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a power takeoff cover of the novel rear power takeoff assembly according to an embodiment of the present invention;
wherein: 1-power takeoff shell, 2-power takeoff cover, 3-pressure switch, 4-shifting fork shaft, 5-meshing sleeve, 6-hollow shaft, 7-first cylindrical roller bearing, 8-output gear shaft, 9-second cylindrical roller bearing, 10 bearing cover, 11-oil seal, 12-flange plate, 13-sealing baffle, 14-first O-shaped ring, 15-input gear, 16-needle bearing, 17-input gear retainer ring, 18-cylinder block, 19-piston, 20-return spring, 21-vent plug, 22-second O-shaped ring, 23-third O-shaped ring, 24-support spring, 25-shifting fork, 101-transmission main shaft rear bearing cover and 102-auxiliary box intermediate shaft bearing cover.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. 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 following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention.
As shown in fig. 1 and 2, a novel rear power takeoff assembly comprises a housing assembly, and a shifting fork shaft 4, a hollow shaft 6, an input gear 15 and an output gear shaft 8 which are arranged in the housing assembly; the shell assembly comprises a power takeoff shell 1 and a power takeoff cover 2 connected with the power takeoff shell 1; the shifting fork shaft 4 is supported on the power takeoff cover 2, one end of the shifting fork shaft is connected with a shifting fork 25, and the other end of the shifting fork shaft is arranged in the piston 19 and is connected with a return spring 20; the piston 19 is arranged in a cylinder block 18, and the cylinder block 18 is fixed on the power takeoff cover 2 through bolts; one end of the return spring 20 is connected with the shifting fork shaft 4 through a bolt, and the other end of the return spring is connected with the cylinder body 18; the hollow shaft 6 is connected with an input gear 15 through a needle bearing 16, the input gear 15 is connected with an output gear shaft 8 and transmits power, and one end of the output gear shaft 8 is connected with a flange 12; one end of the input gear 15 is connected with the meshing sleeve 5, and the other end of the input gear 15, which is positioned on the side of the power takeoff cover 2, is provided with an input gear retainer ring 17.
Further, a sealing baffle 13 is arranged in the flange plate 12, and the flange plate 12 and the sealing baffle 13 are fixed on one end of the output gear shaft 8 through bolts.
Further, a vent plug 21 is arranged on the cylinder block 18, and the vent plug 21 is connected with the pressure switch 3.
Further, a second O-ring 22 is provided between the piston 19 and the facing surface of the cylinder block 18.
Further, a third O-ring 23 is installed between the abutting surface of the power takeoff cover 2 and the shift fork shaft 4.
Furthermore, a bearing cover 10 is arranged at the joint of the power takeoff cover 2 and the flange plate 12, and an oil seal 11 is arranged at the joint of the bearing cover 10 and the flange plate 12.
Further, a supporting spring 24 is arranged at the joint of the input gear 15 and the meshing sleeve 5.
Further, two ends of the output gear shaft 8 are respectively supported and positioned by a first cylindrical roller bearing 7 and a second cylindrical roller bearing 9, the first cylindrical roller bearing 7 is arranged in the power takeoff shell 1, and the second cylindrical roller bearing 9 is arranged in the power takeoff cover 2.
Furthermore, a first O-shaped ring 14 is arranged at the position where the sealing baffle 13 is attached to the flange 12.
Further, one end of the return spring 20 is connected to the fork shaft 4 through a bolt, and the other end is connected to the cylinder block 18.
Further, the power take-off housing 1 is integrated with a transmission main shaft rear bearing cover 101 and an auxiliary case intermediate shaft bearing cover 102.
The embodiment of the utility model provides a novel back power takeoff assembly, the power takeoff casing, back bearing cap and the auxiliary box jackshaft bearing cap integration of former QH70 series power takeoff are integrated as a whole, new back power takeoff assembly that a matching Fashi special small eight grades of series speed changers used. The novel rear power takeoff assembly provided by the embodiment of the utility model is connected with the rear cover of the speed changer through the power takeoff shell 1 and is arranged on the speed changer, and the hollow shaft 6 is combined with the outer spline of the lengthened middle shaft of the auxiliary speed changer box to transmit the power of the speed changer; the meshing sleeve 5 is adopted for gear hanging and gear picking, and the output gear shaft 8 is supported and positioned through the first cylindrical roller bearing 7 and the second cylindrical roller bearing 9 on the two sides, so that stable power output is ensured; when the power takeoff needs to be shifted, the air path of the whole vehicle is used for the power takeoff cylinder, the power takeoff cylinder and the power takeoff cavity are isolated into two independent spaces through the sealed third O-shaped ring 23, and the air leakage is avoided. When the piston 19 is pushed by air to move back and forth, the piston 19 moves to drive the shifting fork 4 to move, the shifting fork 4 drives the meshing sleeve 5 to slide, the meshing sleeve 5 slides to be meshed with the input gear 15, meshing between gears in the power takeoff is achieved, power is transmitted to the flange plate 12 through the input gear 15 through the output gear shaft 8, and the power takeoff is in gear engagement. When the air path is disconnected, the return spring 20 pushes the piston to return, and the power takeoff is shifted off.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (10)
1. A novel rear power takeoff assembly is characterized by comprising a shell assembly, a shifting fork shaft (4), a hollow shaft (6), an input gear (15) and an output gear shaft (8), wherein the shifting fork shaft, the hollow shaft (6), the input gear and the output gear shaft are arranged in the shell assembly; the shell assembly comprises a power takeoff shell (1) and a power takeoff cover (2) connected with the power takeoff shell (1);
the shifting fork shaft (4) is supported on the power takeoff cover (2), one end of the shifting fork shaft is connected with the shifting fork (25), and the other end of the shifting fork shaft is arranged in the piston (19) and is connected with the return spring (20); the piston (19) is arranged in a cylinder block (18), and the cylinder block (18) is fixed on the power takeoff cover (2); one end of the return spring (20) is connected with the shifting fork shaft (4), and the other end of the return spring is connected with the cylinder body (18);
the hollow shaft (6) is connected with an input gear (15) through a needle bearing (16), the input gear (15) is connected with an output gear shaft (8) and transmits power, and one end of the output gear shaft (8) is connected with a flange plate (12); one end of the input gear (15) is connected with the meshing sleeve (5), and the other end of the input gear (15) on the side of the power takeoff cover (2) is provided with an input gear retainer ring (17).
2. The novel rear power takeoff assembly as claimed in claim 1, wherein a sealing baffle (13) is arranged in the flange plate (12), and the flange plate (12) and the sealing baffle (13) are fixed on one end of the output gear shaft (8) through bolts.
3. The novel rear power takeoff assembly as claimed in claim 1, characterized in that a vent plug (21) is provided on the cylinder block (18), the vent plug (21) being connected to the pressure switch (3).
4. The novel rear power takeoff assembly as claimed in claim 1, wherein a second O-ring (22) is provided between facing surfaces of the piston (19) and the cylinder block (18).
5. The novel rear power takeoff assembly as claimed in claim 1, wherein a third O-ring (23) is arranged between the abutting surfaces of the power takeoff cover (2) and the shifting fork shaft (4).
6. The novel rear power takeoff assembly as claimed in claim 1, wherein a bearing cover (10) is arranged at the joint of the power takeoff cover (2) and the flange plate (12), and an oil seal (11) is arranged at the joint of the bearing cover (10) and the flange plate (12).
7. The novel rear power takeoff assembly as claimed in claim 1, characterized in that a supporting spring (24) is provided at the connection of the input gear (15) and the meshing sleeve (5).
8. The novel rear power takeoff assembly as claimed in claim 1, wherein both ends of the output gear shaft (8) are supported and positioned by a first cylindrical roller bearing (7) and a second cylindrical roller bearing (9), respectively, the first cylindrical roller bearing (7) being disposed in the power takeoff housing (1), and the second cylindrical roller bearing (9) being disposed in the power takeoff cover (2).
9. The novel rear power takeoff assembly as claimed in claim 2, wherein a first O-ring (14) is provided at the facing surface of the sealing baffle (13) with the flange (12).
10. The new rear power take-off assembly according to claim 1, characterized in that the power take-off housing (1) integrates a transmission main shaft rear bearing cover (101) and a sub-case intermediate shaft bearing cover (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020866399.2U CN212685246U (en) | 2020-05-21 | 2020-05-21 | Novel rear power takeoff assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020866399.2U CN212685246U (en) | 2020-05-21 | 2020-05-21 | Novel rear power takeoff assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212685246U true CN212685246U (en) | 2021-03-12 |
Family
ID=74887664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020866399.2U Active CN212685246U (en) | 2020-05-21 | 2020-05-21 | Novel rear power takeoff assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212685246U (en) |
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2020
- 2020-05-21 CN CN202020866399.2U patent/CN212685246U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230713 Address after: No. 116, Wenxing Road, Qindu District, Xianyang, Shaanxi 712099 Patentee after: Shaanxi Fashte Intelligent Brake System Co.,Ltd. Address before: 710119 No. 129 West Road, Changan Industrial Park, Xi'an high tech Zone, Shaanxi Patentee before: SHAANXI FAST AUTO DRIVE Group Co. |