公开(公告)号：US20190136468A1

公开(公告)日：2019-05-09

申请号：US16139273

申请日：2018-09-24

申请人： Roadtec, Inc.

发明人： Todd Avans ,  James H. Bevill ,  David Swearingen

IPC分类号： E01C23/088 ,  G01L1/22

摘要： A milling machine for milling a roadway surface includes a frame and a milling drum that is mounted for rotation with respect to the frame. A primary drum drive assembly is operatively attached to the milling drum and adapted to rotate the milling drum, and a ground-engaging drive assembly that is adapted to drive the milling machine along the roadway surface. A lifting column is attached at its upper end to the frame and at its lower end to the ground-engaging drive assembly. The lifting column includes a linear actuator which can be operated to raise and lower the frame of the machine with respect to the roadway surface. A sensor that is associated with the lifting column is adapted to determine if the lifting column is not supporting a portion of the weight of the milling machine sufficient to insure that the milling drum is not supporting any part of the weight of the milling machine. A controller is operatively attached to the primary drum drive assembly and to the sensor. The controller is adapted to receive from the sensor a signal indicating that the lifting column is not supporting the portion of the weight of the milling machine that is sufficient to insure that the milling drum is not supporting any part of the weight of the milling machine, and upon receipt of such signal, to stop the rotation of the milling drum.

公开(公告)号：US20200040534A1

公开(公告)日：2020-02-06

申请号：US16596271

申请日：2019-10-08

申请人： Roadtec, Inc.

发明人： Todd Avans ,  James H. Bevill ,  David Swearingen

IPC分类号： E01C23/088 ,  G01L1/22 ,  G01G19/12

摘要： A milling machine for milling a roadway surface includes a frame and a milling drum that is mounted for rotation with respect to the frame. A primary drum drive assembly is operatively attached to the milling drum and is adapted to rotate the milling drum, and a ground-engaging drive assembly is adapted to drive the milling machine along the roadway surface. A lifting column is attached at its upper end to the frame and at its lower end to the ground-engaging drive assembly. The lifting column includes a linear actuator which can be operated to raise and lower the frame of the machine with respect to the roadway surface. A sensor that is mounted to the lifting column is adapted to determine if the lifting column is not supporting at least a predetermined portion of the weight of the milling machine. A controller is operatively attached to the primary drum drive assembly and to the sensor. The controller is adapted to receive from the sensor a signal indicating that the lifting column is not supporting the predetermined portion of the weight of the milling machine, and upon receipt of such signal, to stop the rotation of the milling drum.

公开(公告)号：US20190024329A1

公开(公告)日：2019-01-24

申请号：US16038871

申请日：2018-07-18

申请人： Roadtec, Inc.

发明人： Todd Avans ,  James H. Bevill

IPC分类号： E01C23/088

摘要： A milling machine for milling a surface of a roadway includes a frame and a milling assembly having a cutter drum that is mounted for rotation with respect to the frame. The cutter drum has a drive shaft on which a sheave is mounted. A primary drum drive assembly is adapted to rotate the cutter drum with respect to the frame. The primary drum drive assembly includes a drive belt that cooperates with the sheave on the drive shaft for the cutter drum to rotate the cutter drum. A belt lift assembly may be operated to selectively disengage the drive belt from the sheave of the drive shaft for the cutter drum.

公开(公告)号：US20170362782A1

公开(公告)日：2017-12-21

申请号：US15187146

申请日：2016-06-20

申请人： Roadtec, Inc.

发明人： Joseph E. Musil ,  James H. Bevill

IPC分类号： E01C23/088 ,  E01C23/12

CPC分类号： E01C23/088 ,  B60B35/10 ,  B60B35/1018 ,  B60G3/01 ,  B60G2204/46 ,  B60G2204/4604 ,  B60G2300/09 ,  B60G2300/40 ,  E01C23/127

摘要： A milling machine includes a frame, a housing, a milling drum mounted on the frame within the housing and a drive assembly. A positioning assembly is provided for moving the drive assembly between a first position which is laterally outside the periphery of the machine housing and a second position which is laterally inside the periphery of the machine housing, and for locking the drive assembly in at least the first and second positions without requiring the operator to manually manipulate a locking pin.

公开(公告)号：US20200123717A1

公开(公告)日：2020-04-23

申请号：US16717762

申请日：2019-12-17

申请人： Roadtec, Inc.

发明人： Todd Avans ,  James H. Bevill

IPC分类号： E01C23/088 ,  E01C23/12

摘要： A milling machine for milling a surface of a roadway includes a frame and a milling assembly having a cutter drum that is mounted for rotation with respect to the frame. The cutter drum has a drive shaft on which a sheave is mounted. A primary drum drive assembly is adapted to rotate the cutter drum with respect to the frame. The primary drum drive assembly includes a drive belt that cooperates with the sheave on an input drive shaft for the cutter drum to rotate the cutter drum. A belt lift assembly may be operated to selectively disengage the drive belt from the sheave of the input drive shaft for the cutter drum, so that an auxiliary drum drive assembly comprising an auxiliary drive motor may be operated to rotate the cutter drum independently of the primary drum drive assembly.

公开(公告)号：US09951484B2

公开(公告)日：2018-04-24

申请号：US15187146

申请日：2016-06-20

申请人： Roadtec, Inc.

发明人： Joseph E. Musil ,  James H. Bevill

IPC分类号： E01C23/088 ,  E01C23/12 ,  B60G3/01 ,  B60B35/10

CPC分类号： E01C23/088 ,  B60B35/10 ,  B60B35/1018 ,  B60G3/01 ,  B60G2204/46 ,  B60G2204/4604 ,  B60G2300/09 ,  B60G2300/40 ,  E01C23/127

摘要： A milling machine includes a frame, a housing, a milling drum mounted on the frame within the housing and a drive assembly. A positioning assembly is provided for moving the drive assembly between a first position which is laterally outside the periphery of the machine housing and a second position which is laterally inside the periphery of the machine housing, and for locking the drive assembly in at least the first and second positions without requiring the operator to manually manipulate a locking pin.

公开(公告)号：US10787775B2

公开(公告)日：2020-09-29

申请号：US16717762

申请日：2019-12-17

申请人： Roadtec, Inc.

发明人： Todd Avans ,  James H. Bevill

IPC分类号： E01C23/088 ,  E01C23/12 ,  F16H7/08

摘要： A milling machine for milling a surface of a roadway includes a frame and a milling assembly having a cutter drum that is mounted for rotation with respect to the frame. The cutter drum has a drive shaft on which a sheave is mounted. A primary drum drive assembly is adapted to rotate the cutter drum with respect to the frame. The primary drum drive assembly includes a drive belt that cooperates with the sheave on an input drive shaft for the cutter drum to rotate the cutter drum. A belt lift assembly may be operated to selectively disengage the drive belt from the sheave of the input drive shaft for the cutter drum, so that an auxiliary drum drive assembly comprising an auxiliary drive motor may be operated to rotate the cutter drum independently of the primary drum drive assembly.

公开(公告)号：US10655286B2

公开(公告)日：2020-05-19

申请号：US16596271

申请日：2019-10-08

申请人： Roadtec, Inc.

发明人： Todd Avans ,  James H. Bevill ,  David Swearingen

IPC分类号： E01C23/088 ,  E01C23/12 ,  G01G19/12 ,  G01L1/22

摘要： A milling machine includes a primary drum drive assembly that is adapted to rotate a milling drum, and a ground-engaging drive assembly that is adapted to drive the milling machine along a roadway. A lifting column includes a linear actuator which can be operated to raise and lower the frame of the machine with respect to the roadway. A sensor that is mounted to the lifting column is adapted to determine if the lifting column is not supporting at least a predetermined portion of the weight of the milling machine. A controller is operatively attached to the primary drum drive assembly and to the sensor. The controller is adapted to receive from the sensor a signal indicating that the lifting column is not supporting the predetermined portion of the weight of the milling machine, and upon receipt of such signal, to stop the rotation of the milling drum.

公开(公告)号：US20200080267A1

公开(公告)日：2020-03-12

申请号：US16561211

申请日：2019-09-05

申请人： Roadtec, Inc.

发明人： James H. Bevill ,  Tim Stevens

IPC分类号： E01C23/088 ,  E01C23/12

摘要： A side cutter milling assembly is used to modify a milling machine having a frame, a milling drum housing that is removably attached to the frame, a milling drum that is mounted for rotation within the milling drum housing, and a primary drum drive assembly that is adapted to rotate the milling drum. The side cutter milling assembly includes a drum housing having a main portion and a side portion. The main portion is adapted to be installed on the frame of the milling machine in place of the milling drum housing, and the side portion is offset to one side of the milling machine. A side cutter milling drum is mounted for rotation within the side portion of the drum housing, and a side cutter drivetrain is configured and adapted to be operatively attached to the side cutter milling drum and the primary drum drive assembly.

公开(公告)号：US10577759B2

公开(公告)日：2020-03-03

申请号：US16038871

申请日：2018-07-18

申请人： Roadtec, Inc.

发明人： Todd Avans ,  James H. Bevill

IPC分类号： E01C23/088 ,  E01C23/12 ,  B28D1/18

摘要： A milling machine for milling a surface of a roadway includes a frame and a milling assembly having a cutter drum that is mounted for rotation with respect to the frame. The cutter drum has a drive shaft on which a sheave is mounted. A primary drum drive assembly is adapted to rotate the cutter drum with respect to the frame. The primary drum drive assembly includes a drive belt that cooperates with the sheave on the drive shaft for the cutter drum to rotate the cutter drum. A belt lift assembly may be operated to selectively disengage the drive belt from the sheave of the drive shaft for the cutter drum.