Guide carriage having a rolling-body guide section which engages behind the raceway insert

Patent metadata

Field	Value
Publication number	US-9476451-B2
Application number	US-201514723818-A
Country	US
Kind code	B2
Filing date	May 28, 2015
Priority date	May 28, 2014
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

A guide carriage is configured for use with an elongate guide rail. The guide carriage has at least one row of spherical rolling bodies which are received in an associated endless circulatory channel. The circulatory channel has a load-bearing section and a return channel which are connected to one another at their ends which lie opposite one another via in each case one curved deflection channel. The load-bearing section is delimited by a carriage raceway extending in a longitudinal direction on the guide carriage and a rail raceway on the guide rail. A separate main body of metal is also provided. The carriage raceway is arranged on a separate raceway insert which bears against the main body. A separate rolling-body guide part is also provided which has a guide section extending in the longitudinal direction. The guide section engages behind the raceway insert.

First claim

What is claimed is:

1. A guide carriage for use with an elongate guide rail, the guide carriage comprising:
a main body made of metal;
at least one endless circulatory channel having a load-bearing section and a return channel,
the load-bearing section and the return channel connected to one another at their ends which lie opposite one another,
each of the ends of the load-bearing section and the return channel connected via a curved deflection channel, the load-bearing section delimited by a carriage raceway, which extends in a longitudinal direction on the guide carriage, and a rail raceway on the guide rail,
the carriage raceway arranged on a separate raceway insert configured to bear against the main body;

at least one row of spherical rolling bodies received in a respective one of the at least one circulatory channel; and
a separate rolling-body guide part having a guide section which extends in the longitudinal direction, the guide section configured to engage behind the raceway insert, wherein:
the guide section has a first rolling-body guide face configured to delimit the at least one circulatory channel in the load-bearing section, and
the first rolling-body guide face has a circular configuration as viewed in cross section.

2. The guide carriage according to claim 1 , further comprising:
a rolling-body holding web extending in the longitudinal direction, the rolling-body holding web having a second rolling-body guide face configured to delimit the at least one circulatory channel in the load-bearing section such that the carriage raceway is arranged between the first rolling-body guide face and the second rolling-body guide face, wherein:
the second rolling-body guide face has a circular configuration as viewed in cross section, and
a clear span between the first rolling-body guide face and the second rolling-body guide face in a region of the rail raceway is smaller than a diameter of the rolling bodies.

3. The guide carriage according to claim 1 , wherein:
the main body has a flat bearing face,
the guide section is configured to bear against the flat bearing face, and
the raceway insert extends between the rolling bodies in the load-bearing section and the bearing face.

4. The guide carriage according to claim 3 , wherein:
a shoulder is arranged on the main body at an end of the bearing face which faces away from the raceway insert, and
the guide section is configured to bear against the shoulder.

5. The guide carriage according to claim 1 , wherein:
a longitudinal sealing lip is arranged on the guide section, and
the longitudinal sealing lip is arranged in such a way that it makes contact with the guide rail when the guide carriage is mounted on the guide rail.

6. The guide carriage according to claim 5 , wherein:
the guide section has a free surface facing away from the raceway insert, and
the free surface merges into the longitudinal sealing lip without a step.

7. The guide carriage according to claim 1 , wherein:
the raceway insert has a first carriage raceway and a second carriage raceway,
a first bearing face is arranged on the raceway insert between the first and second carriage raceways,
the raceway insert has a second bearing face arranged so as to lie opposite the first bearing face, and
a width of the second bearing face is greater than a width of the first bearing face.

8. The guide carriage according to claim 7 , wherein the raceway insert has a groove in a region of the second bearing face, the groove extending in the longitudinal direction over an entire length of the raceway insert.

9. The guide carriage according to claim 7 , wherein:
the main body has a V-shaped groove with a first flat side face and a second flat side face,
the raceway insert is configured to bear against the first and second side faces, and
the rolling bodies are arranged in the load-bearing section within a straight extension of the first and second side faces.

10. A guide carriage for use with an elongate guide rail, the guide carriage comprising:
a main body made of metal;
at least one endless circulatory channel having a load-bearing section and a return channel,
the load-bearing section and the return channel connected to one another at their ends which lie opposite one another,
each of the ends of the load-bearing section and the return channel connected via a curved deflection channel, the load-bearing section delimited by a carriage raceway, which extends in a longitudinal direction on the guide carriage and a rail raceway on the guide rail,
the carriage raceway arranged on a separate raceway insert configured to bear against the main body,
the raceway insert having:
a first carriage raceway;
a second carriage raceway;
a first bearing face arranged on the raceway insert between the first carriage raceway and the second carriage raceway;
a second bearing face arranged so as to lie opposite the first bearing face, a width of the second bearing face being greater than a width of the first bearing face; and
a groove in a region of the second bearing face, the groove extending in the longitudinal direction over an entire length of the raceway insert;

at least one row of spherical rolling bodies received in a respective one of the at least one circulatory channel; and
a separate rolling-body guide part having a guide section which extends in the longitudinal direction, the guide section configured to engage behind the raceway insert.

11. The guide carriage according to claim 10 , wherein:
the main body has a flat bearing face,
the guide section is configured to bear against the flat bearing face, and
the raceway insert extends between the rolling bodies in the load-bearing section and the bearing face.

12. The guide carriage according to claim 11 , wherein:
a shoulder is arranged on the main body at an end of the bearing face which faces away from the raceway insert, and
the guide section is configured to bear against the shoulder.

13. The guide carriage according to claim 10 , wherein:
a longitudinal sealing lip is arranged on the guide section, and
the longitudinal sealing lip is arranged in such a way that it makes contact with the guide rail when the guide carriage is mounted on the guide rail.

14. The guide carriage according to claim 13 , wherein:
the guide section has a free surface facing away from the raceway insert, and
the free surface merges into the longitudinal sealing lip without a step.

15. The guide carriage according to claim 10 , wherein:
the main body has a V-shaped groove with a first flat side face and a second flat side face,
the raceway insert is configured to bear against the first and second side faces, and
the rolling bodies are arranged in the load-bearing section within a straight extension of the first and second side faces.

16. A guide carriage for use with an elongate guide rail, the guide carriage comprising:
a main body made of metal and having a flat bearing face;
at least one endless circulatory channel having a load-bearing section and a return channel,
the load-bearing section and the return channel connected to one another at their ends which lie opposite one another,
each of the ends of the load-bearing section and the return channel connected via a curved deflection channel, the load-bearing section delimited by a carriage raceway, which extends in a longitudinal direction on the guide carriage and a rail raceway on the guide rail,
the carriage raceway arranged on a separate raceway insert configured to bear against the main body;

at least one row of sph

Assignees

• Bosch Gmbh Robert

Inventors

• Elting Martina
• Schenk Juergen
• Korbacher Michael
• Dorn Stefan
• Stock Marco
• Ziegler Mario
• Spatschek Gerd
• Schlegel Peter

Classifications

• F16C43/04

  Assembling rolling-contact bearings · CPC title

• F16C29/0645

  with load directions in O-arrangement · CPC title

• F16C29/06 Primary

  in which the rolling bodies circulate partly without carrying load · CPC title

• F16C29/0607 Primary

  of parts or members for retaining the rolling elements, i.e. members to prevent the rolling elements from falling out of the bearing body or carriage · CPC title

• F16C29/088

  Seals extending in the longitudinal direction of the carriage or bearing body · CPC title