CN203308923U - Spindle sleeve structure of door spindle - Google Patents

Abstract

The utility model discloses a spindle sleeve structure of a door spindle. A spindle hole the diameter of which is the same as that of the door spindle is formed in the spindle sleeve; a matched conical surface is arranged in a position corresponding to the door spindle in the shaft hole; the spindle sleeve is formed by connecting two half sleeve bodies intersected along the axis of the spindle hole; screw holes are formed in the matched end surface of the two half sleeve bodies; the screw hole of at least one half sleeve body runs through the half sleeve body; bolts for connecting the two half sleeve bodies are arranged in the screw holes. Compared with the prior art, the spindle sleeve is formed by connecting the two half sleeve bodies intersected along the axis of the spindle hole, so that the installation problem of the spindle sleeve is solved; the spindle hole of the spindle sleeve has a diameter the same as that of the door spindle; an inner hole can be manufactured in a way that the inner hole has the diameter the same as that of a spindle and is matched with the spindle; the spindle sleeve structure has the beneficial effect that the shaking abrasion of the spindle due to a gap is prevented.

Description

Shaft sleeve structure

technical field

The utility model relates to a shaft sleeve structure of a door shaft.

Background technique

The door shaft sleeve structure widely used at present usually includes a complete shaft sleeve body, and the shaft sleeve body is set on the inner hole matched with the shaft. The precision is not high, resulting in the gap between the shaft and the bushing being easily worn.

Contents of the invention

In order to solve the problems existing in the use of the prior art, the utility model provides an easy-to-use and high-precision door shaft sleeve structure.

The technical solution of the utility model to solve the existing problems is: a shaft sleeve structure of the door shaft, the shaft hole with the same diameter as the door shaft is arranged in the shaft sleeve, and the shaft hole is provided with a shaft hole corresponding to the door shaft. The corresponding tapered surface, the bushing is formed by connecting two half-sleeves divided along the axis line of the shaft hole, and the matching end faces of the two half-sleeves are provided with screw holes, and the at least A screw hole of half of the sleeve body runs through the half sleeve body, and bolts connecting the two halves of the sleeve body are arranged in the screw hole.

As a further improvement, the inner hole of the shaft sleeve is provided with a reinforcement layer matched with the shaft.

As a further improvement, the strengthening layer in the inner hole of the shaft sleeve is a carburized layer or a manganese steel layer.

As a further improvement, the thickness of the strengthening layer is 20-30mm.

Compared with the prior art, the utility model is that the shaft sleeve is connected by two half sleeves divided along the axis line of the shaft hole, which solves the installation problem of the shaft sleeve. The shaft hole of the shaft sleeve is equal to the door shaft, and the inner The hole can be manufactured to be matched with the shaft with a fairly high precision equal to the shaft, and the matching tapered surface can effectively adjust the precision of the door shaft, and its beneficial effect is to prevent the shaft from shaking and wearing due to clearance.

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a cross-sectional top view of FIG. 1 .

Detailed ways

Referring to Figure 1-2, the implementation case in this city includes a shaft sleeve 1. A shaft hole with the same diameter as the door shaft is provided in the shaft sleeve 1. A corresponding taper surface is provided in the shaft hole corresponding to the door shaft. The shaft sleeve 1 is composed of Two half-sleeves divided along the axis line of the shaft hole are connected. The matching end faces of the two half-sleeves are provided with screw holes. At least half of the sleeves are threaded through the half-sleeves. The bolt 2 of the half sleeve body, the shaft sleeve 1 inner hole 11 is equal in diameter with the matched shaft.

In order to improve the service life of the shaft sleeve 1, the inner hole of the shaft sleeve 1 is provided with a reinforcement layer 3 matching with the shaft. The reinforcement layer 3 in the inner hole of the shaft sleeve 1 is a carburized layer or a manganese steel layer, and the thickness of the reinforcement layer 3 is 20-30mm.

Claims (4)

1. door-hinge axle sleeve structure, it is characterized in that: in described axle sleeve, be provided with the axis hole isometrical with door-hinge, in described axis hole, be provided with the door-hinge corresponding position conical surface adapted, described axle sleeve is formed by connecting by two and half bodies of cutting apart along the axis hole shaft axis, the end face that described two and half bodies match is provided with screw, described half body screw at least runs through this half body, in described screw, is provided with the bolt that connects the two halves body.

2. door-hinge axle sleeve structure as claimed in claim 1, it is characterized in that: described inner hole of shaft sleeve is provided with the strengthened layer coordinated with axle.

3. door-hinge axle sleeve structure as claimed in claim 2, it is characterized in that: the described strengthened layer of described inner hole of shaft sleeve is carburized case or manganese steel layer.

4. door-hinge axle sleeve structure as claimed in claim 2 or claim 3, it is characterized in that: described strengthened layer thickness is 20-30mm.

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