Adaptor for earth boring machine
First Claim
1. An adaptor for an earth boring machine having means for rotating an auger and boring head through a transmission, gear reduction unit, torque hub, and torque hub flange and having a bulkhead plate disposed between the transmission and gear reduction unit and the torque hub flange, the machine being movable into and out of the bore, comprising:
- (a) a bearing housing attachable to the bulkhead plate on the side opposite the transmission and gear reduction unit;
(b) said bearing housing extending outwardly from the bulkhead plate and surrounding the torque hub flange;
(c) bearing means carried within said bearing housing in encircling relationship with the torque hub flange; and
(d) said bearing means being movable axially relative to the torque hub flange and into bearing engagement with said bearing housing upon movement of the machine out of the bore whereby pulling forces are transmitted to the bulkhead plate.
2 Assignments
0 Petitions
Accused Products
Abstract
An adaptor assembly for an earth boring machine includes a thrust bearing housing removably attachable to the bulkhead plate of an earth boring machine surrounding the torque hub flange. A rear drive flange is attached to the torque hub and a front drive flange is mounted within the housing and carries a thrust bearing movable into and out of contact with the housing. The front drive flange has an extension which projects beyond the housing for attachment of an auger and boring head and is connected to the rear drive flange for rotational movement therewith and axial movement relatively thereof.
45 Citations
21 Claims
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1. An adaptor for an earth boring machine having means for rotating an auger and boring head through a transmission, gear reduction unit, torque hub, and torque hub flange and having a bulkhead plate disposed between the transmission and gear reduction unit and the torque hub flange, the machine being movable into and out of the bore, comprising:
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(a) a bearing housing attachable to the bulkhead plate on the side opposite the transmission and gear reduction unit; (b) said bearing housing extending outwardly from the bulkhead plate and surrounding the torque hub flange; (c) bearing means carried within said bearing housing in encircling relationship with the torque hub flange; and (d) said bearing means being movable axially relative to the torque hub flange and into bearing engagement with said bearing housing upon movement of the machine out of the bore whereby pulling forces are transmitted to the bulkhead plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An adaptor for an earth boring machine having means for rotating an auger and boring head through a transmission, gear reduction unit, torque hub, and torque hub flange and having a bulkhead plate, the machine being movable into and out of the bore, comprising:
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(a) a bearing housing attachable to the bulkhead plate; (b) said bearing housing extending outwardly from the bulkhead plate and surrounding the torque hub flange; (c) bearing means carried within said bearing housing in encircling relationship with the torque hub flange; (d) said bearing means being movable axially relative to the torque hub flange; (e) a rear drive flange attached to the torque hub flange; (f) a front drive flange received within said bearing housing and carrying said bearing means; (g) connector means fixed to said rear drive flange and connected to said front drive flange for rotation therewith; and (h) said front drive flange being movable axially with respect to said connector means. - View Dependent Claims (12)
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13. An adaptor for an earth boring machine having means for rotating an auger and boring head through a transmission, gear reduction unit, torque hub, and torque hub flange and having a bulkhead plate, the machine being movable into and out of the bore, comprising:
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(a) a bearing housing attachable to the bulkhead plate; (b) said bearing housing extending outwardly from the bulkhead plate and surrounding the torque hub flange; (c) bearing means carried within said bearing housing in encircling relationship with the torque hub flange; (d) said bearing means being movable axially relative to the torque hub flange; (e) a flange for attachment to the bulkhead plate; (f) a housing body projecting axially from said flange; (g) a housing cap secured to the projecting end of said housing body; and (h) said bearing means are received within said housing body adjacent said housing cap. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification