公开(公告)号：US20240318693A1

公开(公告)日：2024-09-26

申请号：US18125172

申请日：2023-03-23

Applicant: Deere & Company

Inventor： Steven R. Whiteman

IPC: F16D48/02 ,  B60K17/342 ,  E02F9/20 ,  F16D21/08 ,  F16D23/14 ,  F16D25/08

CPC classification number: F16D25/14 ,  B60K17/342 ,  E02F9/202 ,  F16D21/08 ,  F16D23/14 ,  F16D25/083 ,  B60K17/02

Abstract: A rear mechanism for a work machine includes first and second spring housings operably engaged by one or more springs. The first and second spring housings are assembled with an endcap housing between first and second clutch packs that engage a rear axle of the work machine. A first cavity is formed between the first and second spring housing, and a second cavity is formed between the first housing and the endcap housing. Pressurizing the first cavity compresses the springs and releases a park brake of the work machine to enable front wheel drive of the work machine. While pressurizing the first cavity, the second cavity is pressurized such that the first spring housing compresses the first clutch pack to enable four wheel drive of the work machine.

公开(公告)号：US12043981B2

公开(公告)日：2024-07-23

申请号：US17032114

申请日：2020-09-25

Applicant: Deere & Company

Inventor： Steven R. Fliearman ,  Jeffrey S. Turner ,  Douglas S. Base

IPC: E02F9/20

CPC classification number: E02F9/202 ,  E02F9/207 ,  E02F9/2079

Abstract: A drive assembly for a work vehicle includes an electric machine input arrangement with a first electric machine configured to generate a first source of power, an electric machine input gear assembly configured to receive the first source of power from the first electric machine, and a second electric machine configured to generate a second source of power. The drive assembly further includes a combination gear arrangement coupled to selectively receive the first source of power from the electric machine input gear assembly and the second source of power from the second electric machine to produce a combined power; and an electric machine output arrangement configured to receive and transfer the combined power from the combination gear arrangement.

公开(公告)号：US12038070B2

公开(公告)日：2024-07-16

申请号：US17671072

申请日：2022-02-14

Applicant: Nabtesco Corporation

Inventor： Kazuki Hisada ,  Etsuro Komori

IPC: F16H19/08 ,  E02F3/36 ,  E02F9/00 ,  E02F9/20 ,  F16H1/32 ,  F16H35/10

CPC classification number: F16H19/08 ,  E02F3/3604 ,  E02F9/006 ,  E02F9/202 ,  F16H1/32 ,  F16H35/10 ,  F16H2001/323

Abstract: A drive transmission device according to one embodiment of the disclosure includes: an arm having a motor that generates a rotational force; a speed reducer that is provided in the arm and has a carrier for decelerating rotation of the motor and outputting the decelerated rotation; a bucket fixed to the carrier by a reamer bolt, the reamer bolt being inserted in a bracket through hole formed in the bucket; and a resin bush provided between an internal surface of the bracket through hole and an external lateral surface of the reamer bolt. The mechanical strength of the resin bush is lower than the mechanical strength of the bucket and the mechanical strength of the reamer bolt.

公开(公告)号：US11976716B2

公开(公告)日：2024-05-07

申请号：US16557609

申请日：2019-08-30

Applicant: Caterpillar Inc.

Inventor： Nathaniel K. Harshman ,  Benjamin J. Kovalick ,  Nikhil Sharma

IPC: E02F9/12 ,  E02F3/815 ,  E02F9/20 ,  F16H57/029 ,  E02F3/76 ,  E02F3/84

CPC classification number: F16H57/029 ,  E02F3/8152 ,  E02F9/202 ,  E02F3/764 ,  E02F3/844

Abstract: Disclosed is a seal assembly for a grading machine. The grading machine may include a machine body, a blade assembly, and a circle assembly supporting the blade assembly. The circle assembly may include a circle having a plurality of gear teeth. The grading machine may also include a drawbar assembly connecting the circle assembly to the machine body. The seal assembly may include a non-metallic seal component extending circumferentially around an inner circumference of the circle assembly for sealing the plurality of gear teeth.

公开(公告)号：US11859369B1

公开(公告)日：2024-01-02

申请号：US17893794

申请日：2022-08-23

Applicant: Caterpillar Inc.

Inventor： Brandon L Hagman

IPC: E02F9/20 ,  F16H45/02

CPC classification number: E02F9/202 ,  F16H45/02 ,  F16H2045/0284

Abstract: A spring preloaded lockup clutch system comprises clutch disc(s), an input component, and an output component housed in a hydraulic fluid chamber of a torque converter, a lockup piston and a mechanical spring housed in a piston housing of the torque converter, and a relief valve coupled to the hydraulic fluid chamber. The clutch disc(s), when engaged, couples the input component to the output component. The lockup piston has a first end and a second end, engages with the clutch disc(s) when biased, and disengages from the clutch disc(s) when unbiased. The mechanical spring, coupled to the lockup piston at the second end, applies force to bias the lockup piston. The relief valve, when opened, relieves hydraulic pressure in the hydraulic fluid chamber allowing the lockup piston to remain being biased, and, when closed, allows the hydraulic pressure to build up allowing the lockup piston to be unbiased.

公开(公告)号：US11753795B2

公开(公告)日：2023-09-12

申请号：US16567264

申请日：2019-09-11

Applicant: Baidu Online Network Technology (Beijing) Co., Ltd.

Inventor： Xinjing Cheng ,  Ruigang Yang ,  Yajue Yang ,  Feixiang Lu ,  Hao Xu

IPC: E02F9/12 ,  E02F9/26 ,  E02F9/20 ,  F16H7/02

CPC classification number: E02F9/123 ,  E02F9/202 ,  E02F9/264 ,  F16H7/023 ,  B60Y2200/412 ,  F16C2361/61

Abstract: A device for detecting a rotary angle used for an excavator. The device can include: a synchronous belt, arranged around a rotating shaft of a slewing mechanism of the excavator, a tooth-shaped surface of the synchronous belt being away from a surface of the rotating shaft; a transmission part, engaged with the tooth-shaped surface of the synchronous belt and arranged on a supporting base; an angle detection part, in transmission connection to the transmission part; and the supporting base, connected to a chassis of the excavator.

公开(公告)号：US11674576B2

公开(公告)日：2023-06-13

申请号：US17911158

申请日：2020-09-29

Applicant: Hitachi Construction Machinery Co., Ltd.

Inventor： Takuma Koinuma

IPC: F16H37/04 ,  F16H61/70 ,  F16H3/72 ,  E02F9/20

CPC classification number: F16H37/046 ,  F16H3/72 ,  F16H61/702 ,  E02F9/202

Abstract: A speed-changing device (21) is provided with an input shaft (22), an output shaft (23), a planetary gear mechanism (29), a first variator (33), a second variator (34), and a controller (25). The planetary gear mechanism (29) is configured to include a carrier (29A) connected to the input shaft (22), a first sun gear (29B) connected to the first variator (33), and a second sun gear (29C) connected to the output shaft (23). The second variator (34) transmits power transmitted from the first variator (33) to the output shaft (23), or transmits power transmitted from the output shaft (23) to the first variator (33). The controller (25) changes the rotation speed of the first variator (33), thereby changing the rotation speed of the output shaft (23) in relation to the rotation speed of the input shaft (22).

公开(公告)号：US20230147860A1

公开(公告)日：2023-05-11

申请号：US17911158

申请日：2020-09-29

Applicant: Hitachi Construction Machinery Co., Ltd.

Inventor： Takuma KOINUMA

IPC: F16H37/04 ,  F16H3/72 ,  F16H61/70

CPC classification number: F16H37/046 ,  F16H3/72 ,  F16H61/702 ,  E02F9/202

Abstract: A speed-changing device (21) is provided with an input shaft (22), an output shaft (23), a planetary gear mechanism (29), a first variator (33), a second variator (34), and a controller (25). The planetary gear mechanism (29) is configured to include a carrier (29A) connected to the input shaft (22), a first sun gear (29B) connected to the first variator (33), and a second sun gear (29C) connected to the output shaft (23). The second variator (34) transmits power transmitted from the first variator (33) to the output shaft (23), or transmits power transmitted from the output shaft (23) to the first variator (33). The controller (25) changes the rotation speed of the first variator (33), thereby changing the rotation speed of the output shaft (23) in relation to the rotation speed of the input shaft (22).

公开(公告)号：US20180170426A1

公开(公告)日：2018-06-21

申请号：US15834267

申请日：2017-12-07

Applicant: Allison Transmission, Inc.

Inventor： Robert C. Hood ,  Kelly L. Jones

IPC: B62D11/00 ,  F16H47/04 ,  F16H59/02

CPC classification number: B62D11/003 ,  B62D11/005 ,  B62D11/18 ,  B62D11/183 ,  E02F9/202 ,  E02F9/2079 ,  E02F9/2087 ,  E02F9/225 ,  E02F9/2253 ,  F16H47/02 ,  F16H47/04 ,  F16H59/0217 ,  F16H61/143 ,  F16H2059/467

Abstract: A method of controlling a transmission includes providing an input, an output, a controller, a control system, a hydrostatic unit, and a geartrain. The geartrain includes a direct drive pivot clutch and a steer drive geartrain. The method also includes receiving a pivot command by the controller from a shift selector, where the command indicates the shift selector is in a pivot position. The method further includes engaging the direct drive pivot clutch, decoupling the hydrostatic unit from a torque path defined between the input and the output, and coupling the input and the output to one another via a second torque path. The second torque path is defined through the direct drive pivot clutch and the steer drive geartrain. The transmission is controllable in a direct drive steer operation.

公开(公告)号：US09909661B2

公开(公告)日：2018-03-06

申请号：US14903370

申请日：2014-07-16

Applicant: KOMATSU LTD.

Inventor： Shinichi Naito ,  Hiroyuki Inoue

IPC: F16H61/02 ,  F16D25/0638 ,  F16D25/12 ,  F16H3/72 ,  F16H3/44 ,  F16H57/04 ,  F16H57/08 ,  F16H61/00 ,  F16D21/06 ,  E02F9/20 ,  F16H37/08

CPC classification number: F16H61/0265 ,  E02F9/202 ,  F16D21/06 ,  F16D25/0638 ,  F16D25/123 ,  F16H3/44 ,  F16H3/728 ,  F16H57/0473 ,  F16H57/0484 ,  F16H57/082 ,  F16H61/0003 ,  F16H61/0025 ,  F16H2037/0873 ,  F16H2200/2007 ,  F16H2200/2046

Abstract: A carrier is provided with a circular plate section, a cylinder section, a planetary gear arrangement section, a first hydraulic fluid flow path, and a second hydraulic fluid flow path. The cylinder section has a second support section for supporting a support pin for a planetary gear, a first clutch attachment section for attaching to a first clutch, a second clutch attachment section for attaching to a second clutch, and a piston attachment section for attaching to a piston for driving the second clutch. The first hydraulic fluid flow path has a first inlet which is provided in the circular plate section to receive hydraulic fluid to lubricate the first clutch. The second hydraulic fluid flow path has a second inlet which is provided in the circular plate section to receive hydraulic fluid to drive the piston.