Composite transmission structure of friction wheel and gear

Abstract

The utility model relates to the technical field of packaging machinery, in particular to a composite transmission structure of a friction wheel and a gear, when the composite transmission structure is used, a motor drives a small friction wheel to rotate, the small friction wheel is in friction connection with a large friction wheel, and the large friction wheel rotates when the small friction wheel rotates; therefore, when the small friction wheel stops rotating, the annular gear ring stops rotating under the action of the gear, the large friction wheel further stops rotating, the transmission precision is improved, multiple sets of arc-shaped racks are adopted, the manufacturing cost is reduced, the cost performance is improved, and meanwhile the service life of the transmission mechanism is prolonged. Comprising a small friction wheel, a large friction wheel, arc-shaped racks and a gear, the gear is arranged at the plane end of the small friction wheel, multiple sets of arc-shaped racks are arranged at the plane end of the large friction wheel and define an annular gear ring, the outer side wall of the small friction wheel is in friction connection with the outer side wall of the large friction wheel, and the gear is meshed with the annular gear ring.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machinery, in particular to a composite transmission structure of a friction wheel and a gear. Background Art

[0002] In the mechanical packaging processing of carton boxes, a strapping machine is often needed to strap the packed cartons. The large friction wheel drives the cantilever, and a strapping belt is arranged on the cantilever. The outer wall of the large friction wheel is generally in friction contact with the side wall of the small friction wheel. When the small friction wheel rotates, the large friction wheel rotates through friction connection. However, when the small friction wheel stops rotating, the large friction wheel will rotate relatively due to inertia, resulting in low transmission accuracy. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a composite transmission structure of a friction wheel and a gear for improving transmission accuracy.

[0004] The composite transmission structure of friction wheels and gears of the utility model comprises a small friction wheel, a large friction wheel, an arc-shaped rack and a gear. The plane end of the small friction wheel is provided with a gear, the plane end of the large friction wheel is provided with a plurality of groups of arc-shaped racks, the plurality of groups of arc-shaped racks are combined to form an annular gear ring, the outer wall of the small friction wheel is frictionally connected with the outer wall of the large friction wheel, and the gear is meshed with the annular gear ring; when in use, a motor drives the small friction wheel to rotate, and since the small friction wheel is frictionally connected with the large friction wheel, the large friction wheel rotates when the small friction wheel rotates, and since the gear is meshed with the annular gear ring, when the small friction wheel stops rotating, the annular gear ring stops rotating under the action of the gear, and the large friction wheel is further stopped from rotating, thereby improving the transmission accuracy, adopting a plurality of groups of arc-shaped racks, reducing the manufacturing cost, improving the cost performance, and prolonging the service life of the transmission mechanism.

[0005] Preferably, the arc-shaped rack is mounted on the large friction wheel by bolts; the arc-shaped rack is mounted on the large friction wheel with the cooperation of the bolts, thereby improving the convenience of disassembly and installation.

[0006] Compared with the prior art, the utility model has the following beneficial effects: when in use, the motor drives the small friction wheel to rotate. Since the small friction wheel is frictionally connected to the large friction wheel, the large friction wheel rotates when the small friction wheel rotates. At the same time, since the gear is meshed with the annular gear ring, when the small friction wheel stops rotating, the annular gear ring stops rotating under the action of the gear, further stopping the large friction wheel from rotating, thereby improving transmission accuracy, adopting multiple sets of arc-shaped racks, reducing manufacturing costs, improving cost performance, and extending the service life of the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0008] Figure 2 It is an enlarged structural diagram of the small friction wheel and gear structure;

[0009] Figure 3 It is an enlarged structural diagram of a large friction wheel and an arc-shaped rack structure;

[0010] Figure 4 It is a schematic diagram of the explosion structure of the utility model.

[0011] Markings in the attached drawings: 1. small friction wheel; 2. large friction wheel; 3. arc-shaped rack; 4. gear. DETAILED DESCRIPTION

[0012] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0013] Example 1

[0014] like Figures 1 to 4 As shown, the composite transmission structure of friction wheels and gears of the utility model comprises a small friction wheel 1, a large friction wheel 2, an arc-shaped rack 3 and a gear 4, the plane end of the small friction wheel 1 is provided with the gear 4, the plane end of the large friction wheel 2 is provided with multiple groups of arc-shaped racks 3, the multiple groups of arc-shaped racks 3 are surrounded to form an annular gear ring, the outer wall of the small friction wheel 1 is frictionally connected with the outer wall of the large friction wheel 2, and the gear 4 is meshed with the annular gear ring;

[0015] The arc-shaped rack 3 is mounted on the large friction wheel 2 by means of bolts.

[0016] In this embodiment, when in use, the motor drives the small friction wheel 1 to rotate. Since the small friction wheel 1 is frictionally connected with the large friction wheel 2, the large friction wheel 2 rotates when the small friction wheel 1 rotates. At the same time, since the gear 4 is meshed with the annular gear ring, when the small friction wheel 1 stops rotating, the annular gear ring stops rotating under the action of the gear 4, further stopping the large friction wheel 2 from rotating, thereby improving the transmission accuracy. By adopting multiple sets of arc-shaped racks 3, the manufacturing cost is reduced, the cost performance is improved, and the service life of the transmission mechanism is extended.

[0017] The arc-shaped rack 3 and the gear 4 of the composite transmission structure of the friction wheel and the gear of the utility model are purchased on the market, and the technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative efforts.

[0018] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A composite transmission structure of a friction wheel and a gear, comprising a small friction wheel (1), a large friction wheel (2), an arc-shaped rack (3) and a gear (4), characterized in that: The plane end of the small friction wheel (1) is provided with a gear (4), and the plane end of the large friction wheel (2) is provided with a plurality of groups of arc-shaped racks (3), the plurality of groups of arc-shaped racks (3) are combined to form an annular gear ring, the outer wall of the small friction wheel (1) is frictionally connected with the outer wall of the large friction wheel (2), and the gear (4) is meshed with the annular gear ring.

2. The composite transmission structure of friction wheel and gear according to claim 1, characterized in that: The arc-shaped rack (3) is mounted on the large friction wheel (2) by means of bolts.

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