CN214465863U

CN214465863U - Power takeoff of integral type aluminium box structure

Info

Publication number: CN214465863U
Application number: CN202022771244.3U
Authority: CN
Inventors: 倪俊曾; 夏惠栋
Original assignee: Wuxi Interpump Weifu Hydraulics Company Ltd
Current assignee: Wuxi Interpump Weifu Hydraulics Company Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-10-22
Anticipated expiration: 2030-11-25

Abstract

The utility model relates to the field of machine manufacturing, concretely relates to power takeoff of integral type aluminum box body structure, including box, input gear, drive gear, input shaft, output shaft, ball bearing, output flange, flange screw, output gear, spring end cover, reset spring, jump ring for the primary shaft, shift fork, jump ring for the secondary shaft, inlet end cover, shift fork dabber, piston and spline housing, be equipped with the input shaft on the box, input gear fixes on the input shaft, and input gear meshes with drive gear, and output gear fixes on the output shaft, and the output shaft is fixed mutually with the output flange; spline housing and output shaft are through first splined connection, the shift fork is at the shift fork dabber through jump ring for the primary shaft and jump ring block for the secondary shaft, and the one end of shift fork dabber is connected with the piston, the piston is connected with the air inlet the other end of shift fork dabber is connected with reset spring, the utility model discloses novel structure, the integrated level is high, and the assembly is small.

Description

Power takeoff of integral type aluminium box structure

Technical Field

The utility model relates to the field of machine-building, concretely relates to power takeoff of integral type aluminum box structure.

Background

With the development of national economy, the demand and application of special vehicles are continuously increasing. The types of vehicles are continuously updated, which puts higher requirements on the transformation of special vehicles. At present, most special vehicles use a power takeoff to take power out of an engine or a gearbox, so that the vehicles can operate under special application, and various use requirements are effectively met. The split type power takeoff box is mainly made of cast iron and adopts a split structure for convenient processing, the split type box is combined by screws during assembly, the structure is heavy in weight and not high in structural strength, and the risk of joint surface oil leakage exists.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned not enough, provide a power takeoff of integral type aluminum box body structure, adopt the aluminum alloy box body, reduce power takeoff weight, satisfy energy saving and emission reduction's demand. The integral type box has higher structural strength, also can reduce the risk of outer seepage simultaneously.

According to the technical scheme of the utility model, the power takeoff of integral type aluminum box body structure, including box, input gear, drive gear, input shaft, output shaft, ball bearing, output flange, flange screw, output gear, spring end cover, reset spring, jump ring for the primary shaft, shift fork, jump ring for the secondary shaft, inlet end cover, shift fork dabber, piston and spline housing, be equipped with the input shaft on the box, input gear fixes on the input shaft, and input gear and drive gear are connected through the mode of shrink fit, output gear fixes on the output shaft, the tip of output shaft is fixed mutually with the output flange through flange screw; the shifting fork is characterized in that the spline housing is connected with the output shaft through a first spline, a second spline is further arranged between the output shaft and the output gear, the splines are matched with the spline housing, the shifting fork is clamped on the shifting fork mandrel through a first shaft snap spring and a second shaft snap spring, the shifting fork mandrel is installed on the box body, one end of the shifting fork mandrel is connected with the piston, the piston is connected with the air inlet, an air inlet end cover is arranged outside the air inlet, the other end of the shifting fork mandrel is connected with a reset spring, and the reset spring is fixed on the box body through a spring end cover.

As a further improvement of the utility model, be equipped with first conical bearing and second conical bearing on the input shaft.

As a further improvement, be equipped with first ball bearing and second ball bearing on the output shaft, wherein the outside that is close to the second ball bearing of output shaft terminal surface is equipped with a blanking cover.

As a further improvement of the utility model, reset spring's upper portion is equipped with a signal switch, signal switch cooperatees with the shift fork dabber.

As a further improvement of the utility model, an oil seal is arranged between the box body and the output flange.

The utility model has the advantages that:

1. the structure is novel, the integration level is high, and the assembly volume is small;

2. the high-strength aluminum alloy box body is light in weight and meets the requirements of energy conservation and emission reduction;

3. the integral type box, structural strength is high, reduces outer seepage risk point.

Drawings

Fig. 1 is a cross-sectional view of the overall structure of the present invention.

Description of reference numerals: the automatic transmission device comprises a box body 1, a first conical bearing 2, an input gear 3, a transmission gear 4, a second conical bearing 5, an input shaft 6, an output pump 7, a first ball bearing 8, an oil seal 9, an output flange 10, a flange screw 11, an output gear 12, a spring end cover 13, a reset spring 14, a spring end cover screw 15, a signal switch 16, a snap spring 17 for a first shaft, a shifting fork 18, a snap spring 19 for a second shaft, an air inlet end cover screw 20, an air inlet end cover 21, a shifting fork mandrel 22, a piston 23, a spline housing 24, a blocking cover 25, a second ball bearing 26, a first spline 27 and a second spline 28.

Detailed Description

The invention will be further elucidated in the following in accordance with the drawings.

As shown in fig. 1, the power takeoff of an integrated aluminum box structure comprises a box body 1, a first conical bearing 2, an input gear 3, a transmission gear 4, a second conical bearing 5, an input shaft 6, an output shaft 7, a ball bearing 8, an oil seal 9, an output flange 10, a flange screw 11, an output gear 12, a spring end cover 13, a return spring 14, a spring end cover screw 15, a signal switch 16, a snap spring 17 for the first shaft, a shifting fork 18, a snap spring 19 for the second shaft, an air inlet end cover screw 20, an air inlet end cover 21, a shifting fork core shaft 22, a piston 23, a spline sleeve 24, a blocking cover 25, a ball bearing 26, a first spline 27, a second spline 28 and the like;

an input shaft 6 is arranged on the box body 1, the input gear 3 is fixed on the input shaft 6, the input gear 3 is connected with the transmission gear 4 in a shrink fit mode, the output gear 12 is fixed on the output shaft 7, and the end part of the output shaft 7 is fixed with an output flange 10 through a flange screw 11; the spline housing 24 and the output shaft 7 are connected through a first spline 27, a second spline 28 is further arranged between the output shaft 7 and the output gear 12, the spline 28 is matched with the spline housing 24, the shifting fork 18 is clamped on the shifting fork mandrel 22 through a first snap spring 17 for a first shaft and a second snap spring 19 for a second shaft, the shifting fork mandrel 22 is installed on the box body 1, one end of the shifting fork mandrel 22 is connected with the piston 23, the piston 23 is connected with the air inlet, an air inlet end cover 21 is arranged outside the air inlet, the air inlet end cover 21 is fixed on the box body through an air inlet end cover screw 20, the other end of the shifting fork mandrel 22 is connected with the reset spring 14, the reset spring 14 is fixed on the box body 1 through a spring end cover 13 and limited, and the spring end cover 13 is fixed on the box body 1 through a spring end cover screw 15.

The input shaft 6 is provided with a first conical bearing 2 and a second conical bearing 5.

The output shaft 7 is provided with a first ball bearing 8 and a second ball bearing 26, wherein a blocking cover 25 is arranged on the outer side of the second ball bearing 26 close to the end face of the output shaft 7.

The upper part of the return spring 14 is provided with a signal switch 16, the signal switch 16 is matched with a shifting fork mandrel 22, the signal switch 16 is used for giving feedback whether a power takeoff works or not to a customer, the customer receives an indicator light or a buzzer in a cab by himself, and the customer can use the signal according to the own requirements or can not use the signal.

An oil seal 9 is arranged between the box body 1 and the output flange 10.

The utility model discloses an aluminum box, light in weight accords with present energy saving and emission reduction's requirement, is the integral type structure simultaneously, and internal similar product major part is the components of a whole that can function independently structure, and this kind of structure can reduce the leakage point.

The utility model discloses a working process does: when the power takeoff is mounted on a gearbox, as long as the power takeoff gear of the gearbox rotates, the input gear 3, the transmission gear 4 and the output gear 12 all rotate simultaneously, and the output shaft 7 does not rotate. When the air inlet end cover 21 is ventilated and works, the piston 23 pushes the shifting fork mandrel 22 leftwards through air pressure, the shifting fork 18 drives the spline housing 24 to move leftwards, the spline housing 12 rotates through the combination of the second spline 28 and the output gear 12, the output shaft 7 is driven to rotate, and the output flange 10 rotates to output torque. When the air inlet end cover 21 is cut off, the reset spring 14 pushes the shifting fork mandrel 22 rightwards to drive the shifting fork 18 and the spline housing 24 to move rightwards, the spline housing 24 is disconnected with the output gear 12, and the output shaft 7 and the output flange 10 stop rotating and do not output torque.

Claims

1. A power takeoff of an integrated aluminum box structure is characterized by comprising a box body (1), an input gear (3), a transmission gear (4), an input shaft (6), an output shaft (7), a ball bearing (8), an output flange (10), a flange screw (11), an output gear (12), a spring end cover (13), a reset spring (14), a snap spring (17) for a first shaft, a shifting fork (18), a snap spring (19) for a second shaft, an air inlet end cover (21), a shifting fork mandrel (22), a piston (23) and a spline sleeve (24), an input shaft (6) is arranged on the box body (1), the input gear (3) is fixed on the input shaft (6), the input gear (3) is connected with the transmission gear (4) in a shrink fit manner, the output gear (12) is fixed on the output shaft (7), and the end part of the output shaft (7) is fixed with the output flange (10) through a flange screw (11); spline housing (24) and output shaft (7) are connected through first spline (27), still be equipped with second spline (28) between output shaft (7) and output gear (12), spline (28) cooperate with spline housing (24), shift fork (18) are through jump ring (17) for the primary shaft and jump ring (19) block on shift fork dabber (22) for the secondary shaft, shift fork dabber (22) are installed on box (1), and the one end of shift fork dabber (22) is connected with piston (23), piston (23) are connected with the air inlet, are equipped with air inlet end cover (21) outward to the air inlet, the other end of shift fork dabber (22) is connected with reset spring (14), and reset spring (14) are fixed on box (1) through spring end cover (13).

2. The power takeoff of one-piece aluminum box structure as claimed in claim 1, wherein said input shaft (6) is provided with a first conical bearing (2) and a second conical bearing (5).

3. A power takeoff unit of one-piece aluminum casing structure as claimed in claim 1, wherein said output shaft (7) is provided with a first ball bearing (8) and a second ball bearing (26), wherein a cap (25) is provided on the outer side of the second ball bearing (26) adjacent to the end surface of the output shaft (7).

4. The power takeoff of one-piece aluminum box structure as claimed in claim 1, wherein a signal switch (16) is provided at an upper portion of said return spring (14), said signal switch (16) being engaged with a shift fork spindle (22).

5. The power takeoff of one-piece aluminum casing structure as claimed in claim 1, wherein an oil seal (9) is provided between said casing (1) and said output flange (10).