Auxiliary drive

Patent metadata

Field	Value
Publication number	US-9624628-B2
Application number	US-201615364877-A
Country	US
Kind code	B2
Filing date	Nov 30, 2016
Priority date	Jun 27, 2000
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

A construction machine for the treatment of ground surfaces includes a machine frame and a work drum supported from the machine frame and including exchangeable tools fastened to the work drum. A drive line includes a work motor and a transmission connecting the work motor to the work drum. The transmission includes a belt drive and a reduction gear. An auxiliary drive is mounted at a location on the construction machine and includes an auxiliary drive motor. The auxiliary drive has a first configuration in which the auxiliary drive motor is coupled to the work drum via at least a portion of the transmission to rotate the work drum. The auxiliary drive has a second configuration in which the auxiliary drive remains mounted at the location on the construction machine and the work drum can be rotated by the work motor.

First claim

What is claimed is:

1. A construction machine for the treatment of ground surfaces, comprising:
a machine frame;
a work drum supported from the machine frame and including exchangeable tools fastened to the work drum;
a drive line including a work motor and a transmission connecting the work motor to the work drum, the transmission including:
a belt drive including a motor-side pulley, a drum-side pulley, and at least one drive belt connecting the motor-side pulley to the drum-side pulley; and
a reduction gear arranged internally of the work drum and connected to the drum-side pulley; and

an auxiliary drive mounted at a location on the construction machine and including an auxiliary drive motor, the auxiliary drive having a first configuration in which the auxiliary drive motor is coupled to the work drum via at least a portion of the transmission to rotate the work drum, the auxiliary drive having a second configuration in which the auxiliary drive remains mounted at the location on the construction machine and the work drum can be rotated by the work motor.

2. The construction machine of claim 1 , wherein in the second configuration of the auxiliary drive the auxiliary drive motor is uncoupled from the work drum.

3. The construction machine of claim 1 , wherein in the second configuration of the auxiliary drive the auxiliary drive motor is in idle operation so that the work drum can be rotated by the work motor without decoupling the auxiliary drive motor from the transmission.

4. The construction machine of claim 1 , wherein in the first configuration of the auxiliary drive the auxiliary drive is operatively engaged with the belt drive.

5. The construction machine of claim 1 , wherein:
the transmission further includes a drive coupling between the work motor and the motor-side pulley, the drive coupling being configured to decouple the motor-side pulley from the work motor.

6. The construction machine of claim 5 , wherein:
the transmission further includes a pump distributor drive located between the work motor and drive coupling.

7. The construction machine of claim 5 , wherein in the first configuration of the auxiliary drive the auxiliary drive is operatively engaged with the drive coupling.

8. The construction machine of claim 1 , wherein in the first configuration of the auxiliary drive the auxiliary drive is operatively engaged with the drum-side pulley.

9. The construction machine of claim 1 , wherein in the first configuration of the auxiliary drive the drum-side pulley is rotated when the work drum is rotated.

10. The construction machine of claim 1 , wherein the auxiliary drive motor further comprises an electric motor or a hydraulic motor or a pneumatic motor.

11. The construction machine of claim 1 , wherein the auxiliary drive is coupled to the transmission coaxially to a rotational axis of the drum-side pulley.

12. The construction machine of claim 1 , further comprising:
a drum housing including a lid openable so that an operating person may enter a working space behind the work drum; and
a remote control mounted on the machine for controlling the auxiliary drive, the remote control being accessible by the operating person located in the working space behind the work drum.

13. The construction machine of claim 1 , wherein the auxiliary drive can be switched on only in a switched-off or decoupled state of the work motor.

14. The construction machine of claim 1 , wherein:
the transmission further includes:
a drive coupling between the work motor and the motor-side pulley, the drive coupling being configured to decouple the motor-side pulley from the work motor; and
a pump distributor drive located between the work motor and drive coupling;

the auxiliary drive motor is an electric motor and in the second configuration of the auxiliary drive the auxiliary drive motor is uncoupled from the work drum; and
the auxiliary drive can be switched on only in a switched-off or decoupled state of the work motor.

15. A construction machine for the treatment of ground surfaces, comprising:
a machine frame;
a work drum supported from the machine frame and including exchangeable tools fastened to the work drum;
a drive line including a work motor and a transmission connecting the work motor to the work drum, the transmission including:
a belt drive including a motor-side pulley, a drum-side pulley, and at least one drive belt connecting the motor-side pulley to the drum-side pulley;
a drive coupling between the work motor and the motor-side pulley, the drive coupling being configured to decouple the motor-side pulley from the work motor;
a pump distributor drive located between the work motor and the drive coupling; and
a reduction gear connected between the drum-side pulley and the work drum to reduce a rotational speed of the work drum relative to the drum-side pulley; and

an auxiliary drive mounted at a location on the construction machine and including an auxiliary drive motor, the auxiliary drive having a first configuration in which the auxiliary drive motor is coupled to the work drum by operative engagement of the auxiliary drive with the transmission to rotate the work drum, the auxiliary drive having a second configuration in which the auxiliary drive remains mounted at the location on the construction machine and the auxiliary drive motor is uncoupled from the work drum and the work drum can be rotated by the work motor.

16. The construction machine of claim 15 , wherein the auxiliary drive motor further comprises an electric motor.

17. The construction machine of claim 15 , wherein the auxiliary drive is coupled to the transmission coaxially to a rotational axis of the drum-side pulley.

18. The construction machine of claim 15 , further comprising:
a drum housing including a lid openable so that an operating person may enter a working space behind the work drum; and
a remote control mounted on the machine for controlling the auxiliary drive, the remote control being accessible by the operating person located in the working space behind the work drum.

19. The construction machine of claim 15 , wherein the auxiliary drive can be switched on only in a switched-off or decoupled state of the work motor.

20. The construction machine of claim 15 , wherein in the first configuration of the auxiliary drive the drum-side pulley is rotated when the work drum is rotated.

21. A method of manufacturing a construction machine for the treatment of ground surfaces, comprising:
(a) providing a machine frame;
(b) mounting a work drum on the machine frame;
(c) mounting a work motor on the machine frame;
(d) connecting the work motor with the work drum via a transmission so that the work motor rotates the work drum at a first rotational speed when the work motor is activated, the transmission including:
a belt drive including a motor-side pulley, a drum-side pulley, and at least one drive belt connecting the motor-side pulley to the drum-side pulley; and
a reduction gear connected between the drum-side pulley and the work drum to reduce a rotational speed of the work drum relative to the drum-side pulley; and

(e) mounting an auxiliary drive at a location on the construction machine, the auxiliary drive being operably engaged with the transmission to drive at least a portion of the transmission so that the auxiliary drive can rotate the work drum at a second rotational speed less than the first rotational speed when the work drum is in a raised condition out of e

Assignees

• Wirtgen Gmbh

Inventors

• Busley Peter
• Gaertner Olaf
• Simons Dieter

Classifications

• E01C23/127

  rotary, e.g. rotary hammers · CPC title

• E01C23/088 Primary

  Rotary tools, e.g. milling drums {(for forming recesses to receive marking materials E01C23/0946)} · CPC title

• Y10T29/49826

  Assembling or joining · CPC title