CN211567666U

CN211567666U - Power takeoff

Info

Publication number: CN211567666U
Application number: CN201922471246.8U
Authority: CN
Inventors: 李占江; 郭能; 朱先玲; 邓勇
Original assignee: Chongqing Yuebo Transmission System Co ltd
Current assignee: Chongqing Yuebo Transmission System Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-25
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a power takeoff, the power takeoff includes: bearing frame, sliding sleeve, input shaft, output shaft, gyration portion, select shelves portion and angle displacement sensor, angle displacement sensor sets up in the gyration portion upper end, selects shelves portion to set up perpendicularly in the gyration portion middle part, and the sliding sleeve sets up in the below of gyration portion, and the gyration portion can drive the connection and the disconnection of sliding sleeve control input shaft and output shaft through the rotation, and input shaft and output shaft set up on the bearing frame, and angle displacement sensor is connected with new forms of energy vehicle control unit, and the input shaft is connected with the gearbox, the power takeoff has angle displacement sensor's signal can directly incorporate into whole car control system, has retrencied the control variable.

Description

Power takeoff

Technical Field

The utility model relates to a new energy automobile field particularly, relates to a power takeoff.

Background

The current power takeoff adopts traditional mechanical type pressure or gas pocket switch to carry out signal transmission, is the utility model discloses an integral rearmounted power takeoff of heavy-duty car gearbox like the china utility model that publication number is CN201357759, has solved the problem that current heavy doublestage rearmounted power takeoff assembly takes time, assembly quality is difficult to the assurance. The integral rear power takeoff of heavy-duty car gearbox, the empty power takeoff input gear that overlaps on the power takeoff input shaft, set up the power takeoff toothholder on the power takeoff toothholder, set up the external splines on power takeoff input gear and the power takeoff toothholder, the splined groove in the power takeoff toothholder, power takeoff toothholder is opened outward has the declutch shift groove, the declutch shift shaft is connected to the declutch shift, the piston, the set of return spring on the declutch shift shaft, set up the power takeoff output shaft gear with power takeoff input gear engaged with on the power takeoff output shaft. The utility model has the advantages that: can the unit assemblage, simple to operate, work safety, the reliability is high, and bearing capacity is big, and the whole of the whole car of being convenient for arranges, can satisfy heavy automobile's multiple use condition.

Also for example, the utility model with chinese publication No. CN204109811U discloses a rear power takeoff assembly, which is characterized in that: the transition connecting plate is fixed at the rear end of the transmission, the power takeoff assembly is fixed on the transition connecting plate, the power takeoff input shaft is positioned at the middle position of the power takeoff shell, the front end of the power takeoff input shaft extending out of the power takeoff shell is connected with the transmission main box intermediate shaft through a power takeoff shaft sleeve, the rear end position of the power takeoff input shaft is provided with a spline tooth holder, the input shaft spline tooth holder is provided with an external spline, the inner side of the power takeoff shift tooth sleeve is provided with an internal spline groove, the power takeoff shift tooth sleeve is fixedly connected on the input shaft spline tooth holder through the matching of the internal spline groove and the external spline, a needle roller bearing at the middle section of the power takeoff input shaft is fixedly connected with a power takeoff input gear, a shifting fork shaft is positioned above the power takeoff shell, an air inlet joint on the power takeoff shell is connected with one end of a shifting fork shaft in the power takeoff shell, a shifting fork is, the shifting fork and the shifting fork groove are matched, so that the problems of difficulty in assembly of the power takeoff, difficulty in power takeoff and single output form are solved.

However, the following disadvantages still exist: 1. the traditional switch pushes the free end of the elastic element to generate displacement through the change of pressure, and then pushes the switch element directly or after comparison, so that the on-off state of the switch element is changed, and a corresponding signal is output. The defects of low precision and slow reaction exist; 2. in the whole new energy vehicle accessed to the power takeoff, a set of special control system is needed to receive and process the switch signal, so that redundancy is obvious.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a power takeoff to prior art not enough, the power takeoff includes: the device comprises a bearing seat, a sliding sleeve, an input shaft, an output shaft, a rotary part, a gear selecting part and an angle displacement sensor, wherein the angle displacement sensor is arranged at the upper end of the rotary part;

the rotation part further comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged in the middle of the rotation part and connected with the gear selecting part, and the second connecting piece is arranged at the lower end of the rotation part and connected with the sliding sleeve.

Further, the gear selecting part comprises: the gear selecting mechanism comprises a vent hole, a gear selecting shaft and an elastic piece, wherein the vent hole is arranged at one end of the gear selecting part, the gear selecting shaft is arranged in the middle of the gear selecting shaft, the gear selecting shaft can slide in the gear selecting part, the elastic piece is arranged at the other end of the gear selecting part, and the gear selecting shaft is connected with a first connecting piece.

Further, the second connecting piece includes first connecting block and second connecting block, and first connecting block sets up in gyration portion lower extreme, and first connecting block lower extreme side is provided with the arch, and the second connecting block sets up in the protruding below.

Furthermore, a first groove and a second groove are arranged in the revolving part, the second groove is arranged above the first groove, the width of the second groove is smaller than that of the first groove, the first groove is connected with the revolving part, and the second groove is connected with the first connecting piece.

Compared with the prior art, power takeoff device have following excellent effect that is showing:

1, the power takeoff provided with the angular displacement sensor can directly incorporate a vehicle control system, so that the control quantity is reduced.

2, the power takeoff transmits data in real time through the angle displacement sensor, so that the signal transmission precision is improved.

Drawings

Fig. 1 is a schematic view of the main structure of the power takeoff of the present invention.

Fig. 2 is a schematic view of the connection relationship between the rotating shaft and the sliding sleeve.

Fig. 3 is a schematic view of the connection relationship between the rotating shaft and the gear selecting portion of the present invention.

Description of reference numerals:

1-an input shaft; 2-an output shaft; 3, sliding sleeve; 4-a turn section; 41-a first connector; 42-a second connector; 421-first connection block; 422 a second connecting block, 5-an angular displacement sensor; 6-a gear selection part; 61-a vent hole; 62-gear selecting shaft; 63-an elastic member; 7-bearing.

Detailed Description

The invention is described in further detail below with reference to the drawings and the detailed description.

As shown in fig. 1-3, the power take-off comprises: a bearing seat 7, a sliding sleeve 3, an input shaft 1, an output shaft 2, a rotary part 4, a gear selecting part 6 and an angle displacement sensor 5, wherein the angle displacement sensor 5 is arranged at the upper end of the rotary part 4 and is used for measuring and transmitting the rotation angle information of the rotary part 4, the gear selecting part 6 is vertically arranged in the middle of the rotary part 4 and can ensure the measurement precision of the angle displacement sensor 5, the sliding sleeve 3 is arranged below the rotary part 4, the rotary part 4 can drive the sliding sleeve 3 to control the connection and disconnection of the input shaft 1 and the output shaft 2 through rotation, when the input shaft 1 is connected with the output shaft 2, the power taking is started, when the input shaft 1 is disconnected with the output shaft 2, the power taking is stopped, the input shaft 1 and the output shaft 2 are arranged on the bearing seat 7, the angle displacement sensor 5 is connected with a vehicle controller (not shown in the figure), and the input, the angular displacement sensor 5 sends the angle information of the rotation of the rotating part 4 to the vehicle control unit, and the vehicle control unit judges the current gear according to the received angle information and controls the gearbox to transmit corresponding power to the input shaft 1.

The revolving part 4 further comprises a first connecting piece 41 and a second connecting piece 42, the first connecting piece 41 is arranged in the middle of the revolving part 4 and connected with the gear selecting part 6 for controlling the revolving part 4 to rotate through the parallel movement of the gear selecting part 6, and the second connecting piece 42 is arranged at the lower end of the revolving part 4 and connected with the sliding sleeve 3 for controlling the parallel movement of the sliding sleeve 3.

Further, the gear selecting portion 6 includes a vent 61, a gear selecting shaft 62 and an elastic member 63, the vent 61 is disposed at one end of the gear selecting portion 6 and is used for allowing compressed air to enter the interior of the gear selecting portion 6, the gear selecting shaft 62 is disposed at the middle portion of the gear selecting shaft 6, the gear selecting shaft 62 can slide in the gear selecting portion 6 and is used for controlling the rotating portion 4 to rotate clockwise, the elastic member 63 is disposed at the other end of the gear selecting portion 6 and is used for resetting the gear selecting shaft 62, and the gear selecting shaft 6 is connected with the first connecting member 41.

Further, the second connecting piece 42 includes first connecting block 421 and second connecting block 422, first connecting block 421 sets up in 4 lower extremes of gyration, first connecting block 421 is cylindrical, first connecting block 421 lower extreme side is provided with the arch, the second is connected 422 the piece and is set up in the protruding below, rotator 4 is rotatory to be driven first connecting block 421 and is rotary motion, rotary motion through first connecting block 421 drives the second connecting block and is moved in sliding sleeve 3, thereby control sliding sleeve 3 parallel motion.

Further, a first groove 621 and a second groove 622 are disposed in the rotation shaft 62, the second groove 622 is disposed above the first groove 621, the width of the second groove 622 is smaller than that of the first groove 621, the first groove 621 is connected to the rotation portion 4, and the second groove 622 is connected to the first connecting member 41.

Preferably, the turn 4 is a cylindrical turn shaft.

Preferably, the elastic member 63 is a spring.

When the power takeoff of the utility model works, compressed air enters the gear selecting part 6 from the vent hole 61 and pushes the gear selecting shaft 62 to move, when the gear selecting shaft 62 moves, the groove 622 in the middle of the gear selecting shaft 62 contacts with the first connecting piece 41 on the revolving part 4 and pushes the revolving part 4 to rotate clockwise, meanwhile, the gear selecting shaft 62 extrudes the elastic piece 63, the second connecting piece 42 at the lower end of the revolving part 4 contacts with one side of the annular groove of the sliding sleeve 3, the revolving shaft 4 rotates to drive the sliding sleeve 3 to move towards the input shaft 1, so that the input shaft 1 is connected with the output shaft 2 through the sliding sleeve 3, power is transmitted from the input shaft 1 to the output shaft 2 through the sliding sleeve 3, the power taking function is realized, when the compressed air is withdrawn from the gear selecting part 6 from the vent hole 61, the gear selecting shaft 62 starts to reset under the action of the elastic piece 63, in the resetting process, the second groove 622 on the gear selecting shaft 62 drives the first, the second connecting piece 42 at the lower end of the rotating part 4 is in contact with the other side of the annular groove of the sliding sleeve 3, the sliding sleeve 3 is pushed to be away from the input shaft 1 until the sliding sleeve 3 is completely separated from the input shaft 1, the power taking function is closed, the angle displacement sensor 5 can send the angle information of the rotating part 4 to the vehicle control unit according to the rotating angle of the rotating part 4, and the vehicle control unit judges the current gear according to the received angle information and controls the transmission to transmit corresponding power to the input shaft 1;

the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention.

Claims

1. A power takeoff, comprising: the angle displacement sensor is arranged at the upper end of the rotating part, the gear selecting part is vertically arranged in the middle of the rotating part, the sliding sleeve is arranged below the rotating part, the rotating part drives the sliding sleeve to control the connection and disconnection of the input shaft and the output shaft through rotation, the input shaft and the output shaft are arranged on the bearing seat, the angle displacement sensor is connected with a vehicle control unit, and the input shaft is connected with a gearbox;

the rotating portion further comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged in the middle of the rotating portion and connected with the gear selecting portion, and the second connecting piece is arranged at the lower end of the rotating portion and connected with the sliding sleeve.

2. The power takeoff according to claim 1, wherein said shift select unit comprises an air hole provided at one end of said shift select unit, a shift select shaft provided at a middle portion of said shift select shaft, said shift select shaft being slidable within said shift select unit, and an elastic member provided at the other end of said shift select unit, said shift select shaft being connected to said first connecting member.

3. The power takeoff device as claimed in claim 1, wherein the second connecting member comprises a first connecting block and a second connecting block, the first connecting block is disposed at a lower end of the turning portion, the first connecting block is cylindrical, a protrusion is disposed at a side surface of a lower end of the first connecting block, and the second connecting block is disposed below the protrusion.

4. The power takeoff of claim 1, wherein a first groove and a second groove are disposed in the turn portion, the second groove is disposed above the first groove, the second groove has a width less than a width of the first groove, the first groove is connected to the turn portion, and the second groove is connected to the first connecting member.