Roller mounting structure of roller chain

Abstract

The roller installation structure of the roller chain comprises a left chain with holes and a right chain with holes, a plurality of roller shafts are installed between the left chain with holes and the right chain with holes at equal intervals, and rollers are installed on the roller shafts. The two ends of the roller shaft are fixed through a left fixing screw and a right fixing screw respectively. A left loosening piece is arranged on the inner side of the left fixing screw, and a right loosening piece is arranged on the inner side of the right fixing screw. The right-angle loosening pieces are arranged on the inner sides of the screws, after assembly is completed, the right-angle sides of the loosening pieces just hook and press chain plates of a chain, then the screws and the loosening pieces are welded, the left loosening piece and the right loosening piece cannot rotate and move, and connection is firm and reliable. When the roller needs to be disassembled, the right-angle sides of the loosening pieces are straightened, the screws can be unscrewed, the roller is disassembled, and maintenance and replacement are convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of agricultural machinery and equipment, especially relates to a roller installation structure of roller chain. BACKGROUND

[0002] The traditional roller chain is connected with the chain in the following way: the shaft of the roller chain passes through the chain hole and is fixed axially by using an open pin. This way can ensure that the roller will not fall off in the chain, but causes difficulty in maintenance. When a roller is broken, the whole chain needs to be disassembled, which is time-consuming and laborious.

[0003] In order to solve the above problems in the prior art, the utility model connects the roller shaft with threaded holes at both ends and the chain with holes by using screws and relaxation pieces, and then welds the screws and the relaxation pieces. This method is firm and reliable in connection, and convenient in disassembly and maintenance. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a roller installation structure of roller chain, which is firm and reliable in connection, and convenient in disassembly and maintenance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a roller installation structure of roller chain, which comprises left and right chain belts with holes, a plurality of roller shafts are installed at equal intervals between the left and right chain belts with holes, and a roller is arranged on the roller shaft; the two ends of the roller shaft are fixed on the left and right chain belts with holes by left and right fixing screws respectively; the inner side of the left fixing screw is provided with a left relaxation piece, and the inner side of the right fixing screw is provided with a right relaxation piece.

[0006] Preferably, the left and right relaxation pieces are right-angle structures, one side of which is provided with a round hole for passing through the screw, and the other side is vertically bent inward and pressed against the upper edge of the chain plate.

[0007] Preferably, the two ends of the roller shaft are provided with threaded holes, and the left and right fixing screws are screwed into the threaded holes through the left and right chain belts with holes respectively.

[0008] Preferably, after the roller chain is assembled, the left fixing screw is welded and fixed with the left relaxation piece, and the right fixing screw is welded and fixed with the right relaxation piece.

[0009] Preferably, the roller is a non-powered roller.

[0010] Compared with the prior art, the utility model discloses the beneficial effect is: through setting up right angle type release sheet in the inboard of screw, after assembling, the right angle edge of release sheet just hooks and compresses the chain link of chain, then welds screw with release sheet, and left and right release sheet can not rotate and remove, and the connection is firm and reliable, when needing to disassemble the drum, after straightening the right angle edge of release sheet, can screw down screw, and remove the drum, and the maintenance replacement is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0012] Figure 2 It is the front view of the utility model;

[0013] Figure 3 It is the plan view of the utility model.

[0014] In the drawing: 1, left fixed screw;2, left release sheet;3, left hole chain;4, drum;5, right hole chain;6, right release sheet;7, right fixed screw;8, drum shaft. DETAILED DESCRIPTION

[0015] Below, one preferred embodiment of the utility model will be described with the drawings, and the technical scheme in the preferred embodiment of the utility model is clearly and completely described.

[0016] The utility model discloses left hole chain 3 and right hole chain 5, and a plurality of drum shafts 8 are installed between left hole chain 3 and right hole chain 5 at equal intervals, and the drum 4 is arranged on the drum shaft 8;The both ends of the drum shaft 8 are fixed on left hole chain 3 and right hole chain 5 through left fixed screw 1 and right fixed screw 7 respectively;The inboard of left fixed screw 1 is provided with left release sheet 2, and the inboard of right fixed screw 7 is provided with right release sheet 6.

[0017] Left release sheet 2 and right release sheet 6 are right angle structures, one side of which is provided with a round hole for passing through screw, and the other side is vertically bent inward and pressed on the upper edge of chain plate.

[0018] Threaded holes are made in the both ends of the drum shaft 8, and left fixed screw 1 and right fixed screw 7 are screwed into the threaded holes in left hole chain 3 and right hole chain 5 respectively.

[0019] The assembling and disassembling process of the utility model is as follows:

[0020] After left fixed screw 1 passes through the round hole on left release sheet 2 and the hole on left hole chain 3, it is screwed into the threaded hole of the drum shaft 8.

[0021] After right fixed screw 5 passes through the round hole on right release sheet 6 and the hole on right hole chain 5, it is screwed into the threaded hole of the drum shaft 8.

[0022] After the left fixing screw 1 and the right fixing screw 7 are screwed into place, the right-angled edges of the left and right loosening pieces 2 and 6 just hook and press the chain plates of the chain, and the left and right loosening pieces cannot rotate and move.

[0023] After the drum chain is assembled, the left fixing screw 1 and the left loosening piece 2 are welded and fixed, and the right fixing screw 7 and the right loosening piece 6 are welded and fixed, so that the installation is firm and reliable, and the drum chain cannot be loosened during use.

[0024] When the drum 4 needs to be disassembled due to maintenance and other reasons, the right-angled edges of the loosening pieces are straightened, and then the screws are unscrewed, the drum is disassembled, and replacement is performed.

[0025] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A roller mounting structure for a roller chain, characterized by: The invention comprises a left hole chain (3) and a right hole chain (5), wherein a plurality of roller shafts (8) are installed at equal intervals between the left hole chain (3) and the right hole chain (5), and a roller (4) is arranged on the roller shaft (8); the two ends of the roller shaft (8) are fixed to the left hole chain (3) and the right hole chain (5) by a left fixing screw (1) and a right fixing screw (7), respectively; a left loosening piece (2) is arranged on the inner side of the left fixing screw (1), and a right loosening piece (6) is arranged on the inner side of the right fixing screw (7).

2. The roller mounting structure of a roller chain according to claim 1, characterized in that: The left release plate (2) and the right release plate (6) are of right-angle structure, one side of which is provided with a circular hole for passing a screw, and the other side is vertically bent inwards and pressed against the upper edge of the chain plate.

3. The roller mounting structure of a roller chain according to claim 1, characterized in that: Threaded holes are formed at both ends of the roller shaft (8), and the left fixing screw (1) and the right fixing screw (7) pass through the left hole chain (3) and the right hole chain (5) respectively and are screwed into the threaded holes.

4. The roller mounting structure of a roller chain according to claim 1, characterized in that: After the roller chain is assembled, the left fixing screw (1) is fixed to the left loosening piece (2) by welding, and the right fixing screw (7) is fixed to the right loosening piece (6) by welding.

5. The roller mounting structure of a roller chain according to claim 1, characterized in that: The roller (4) is a non-powered roller.

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