Tooth blade replaceable type sharp tooth chain

Abstract

The utility model relates to the technical field of sharp tooth chains, in particular to a tooth piece replaceable sharp tooth chain which comprises outer tooth pieces, inner tooth pieces, connecting chain plate pieces and cotter pins, a roller is arranged between the inner tooth pieces, a roller is arranged on the inner side of the roller, a connecting shaft rod is arranged on the inner side of the roller, and the cotter pins are arranged on the connecting shaft rod. One end of the connecting shaft rod is fixedly connected with a limiting block, and the end, away from the limiting block, of the connecting shaft rod is fixedly connected with a spiral short rod. According to the structure composed of the spiral short rod, the gasket, the nut, the connecting shaft rod and the like, when the outer tooth piece or the inner tooth piece needs to be replaced, the nut is separated from the spiral short rod, and the outer tooth piece or the inner tooth piece is replaced; according to the tooth-blade-replaceable sharp-tooth chain, limiting of the nut on the gasket is canceled, the gasket is separated from the spiral short rod, namely limiting of the outer tooth blades is canceled, the outer tooth blades or the inner tooth blades needing to be replaced can be selected according to conditions, and the capacity that the tooth blades of the tooth-blade-replaceable sharp-tooth chain can be replaced is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sharp-tooth chains, in particular to a tooth-piece replaceable sharp-tooth chain. Background Art

[0002] With the development of society, chains are used more and more widely as transmission components. Among them, sharp-toothed chains are mostly used for the transportation of objects. For example, they are used in the process of feeding and conveying wood to keep the position of wood fixed, so as to facilitate workers' operation and improve wood processing efficiency.

[0003] A sharp tooth chain is usually composed of an inner tooth plate, an outer tooth plate, a pin shaft, a connecting chain plate, etc. The inner tooth plate and the outer tooth plate act on the wood. Under high-intensity work, the inner tooth plate and the outer tooth plate may not wear out, which may affect their use effect. The teeth of common sharp tooth chains are usually not replaceable, which reduces the use efficiency of the sharp tooth chain. Therefore, a tooth plate replaceable sharp tooth chain is proposed to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a toothed chain with replaceable teeth to solve the problems mentioned in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A tooth chain with replaceable teeth, comprising outer teeth, inner teeth, connecting chain plates and cotter pins, a group of rollers are arranged between the inner teeth, a roller is arranged on the inner side of the roller, a connecting shaft is arranged on the inner side of the roller, one end of the connecting shaft is fixedly connected to a limiting block, one end of the connecting shaft away from the limiting block is fixedly connected to a spiral short rod, a gasket is sleeved on the outer side of the spiral short rod, and a nut is spirally connected to the outer side of the spiral short rod.

[0007] Preferably, a plurality of rubber balls are arranged on the outer side of the gasket, the rubber balls are arranged in an array with equal angles with the same center, and the rubber balls are arranged between the gasket and the nut.

[0008] Preferably, the connecting shaft rod passes through the outer tooth plate, the inner tooth plate and the roller in sequence, and the inner tooth plate is arranged between a group of outer tooth plates.

[0009] Preferably, the limit block is arranged on the outside of the outer tooth plate, and the spiral short rod is arranged on the outside of the outer tooth plate.

[0010] Preferably, there are two cotter pins, and the cotter pins are of equal size.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, through the structure composed of the spiral short rod, gasket, nut and connecting shaft rod, when the outer tooth plate or the inner tooth plate needs to be replaced, the nut is separated from the spiral short rod, so that the limitation of the nut on the gasket is cancelled, and the gasket is separated from the spiral short rod, that is, the limitation on the outer tooth plate is cancelled, and the outer tooth plate or the inner tooth plate to be replaced can be selected according to the situation, that is, the ability of the tooth plate replacement type sharp tooth chain to replace the tooth plate is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0015] Figure 3 This is a schematic diagram of the overall front structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the gasket of the utility model.

[0017] In the figure: 1. outer tooth plate; 2. inner tooth plate; 3. roller; 4. drum; 5. connecting shaft rod; 6. limit block; 7. spiral short rod; 8. gasket; 9. rubber ball; 10. nut; 11. connecting chain plate; 12. cotter pin. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0021] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0022] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0023] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] A tooth chain with replaceable teeth comprises an outer tooth plate 1, an inner tooth plate 2, a connecting chain plate 11 and a cotter pin 12, a roller 3 is arranged between a group of inner tooth plates 2, a drum 4 is arranged on the inner side of the roller 3, a connecting shaft 5 is arranged on the inner side of the drum 4, one end of the connecting shaft 5 is fixedly connected to a limiting block 6, one end of the connecting shaft 5 away from the limiting block 6 is fixedly connected to a spiral short rod 7, a gasket 8 is sleeved on the outer side of the spiral short rod 7, and a nut 10 is spirally connected to the outer side of the spiral short rod 7.

[0026] A plurality of rubber balls 9 are arranged on the outside of the gasket 8. The rubber balls 9 are arranged in an array with equal angles with the same center. The rubber balls 9 are arranged between the gasket 8 and the nut 10. This arrangement enables the rubber balls 9 to increase the contact area between the gasket 8 and the nut 10, and increases the friction between the gasket 8 and the nut 10, so that the nut 10 can be stably fixed on the outside of the spiral short rod 7; the connecting shaft 5 passes through the outer tooth piece 1, the inner tooth piece 2 and the roller 4 in sequence, and the inner tooth piece 2 is arranged on a group of outer teeth. The outer tooth plate 1, the inner tooth plate 2 and the roller 4 are connected together by the connecting shaft 5; the limit block 6 is arranged on the outside of the outer tooth plate 1, and the spiral short rod 7 is arranged on the outside of the outer tooth plate 1. This arrangement enables the positioning of the limit block 6 and the spiral short rod 7, so that the limit block 6 and the spiral short rod 7 can work together; there are two cotter pins 12, and the sizes of the cotter pins 12 are equal. This arrangement makes it possible to limit the connecting chain plate 11 by the cotter pins 12.

[0027] Working process: when replacing the outer tooth piece 1 or the inner tooth piece 2, detach the nut 10 from the spiral short rod 7 to cancel the limit of the nut 10 on the gasket 8, detach the gasket 8 from the spiral short rod 7, that is, cancel the limit of the outer tooth piece 1, and then you can choose the outer tooth piece 1 or the inner tooth piece 2 to be removed according to the situation, push the inner tooth piece 2 or the outer tooth piece 1 to be replaced in the direction away from the limit block 6, so that it is separated from the connecting shaft 5. When the outer tooth piece 1 or the inner tooth piece 2 close to the limit block 6 is to be removed, for convenience, you can directly pull out the connecting shaft 5 from the outer tooth piece 1 away from the limit block 6, the inner tooth piece 2 away from the limit block 6, the roller 4, the inner tooth piece 2 close to the limit block 6 and the roller close to the limit block 6 in turn. The outer tooth plate 1 on one side separates the roller 3 from the inner tooth plate 2. After selecting a new outer tooth plate 1 or inner tooth plate 2, it and other components are sleeved on the outer side of the connecting shaft 5 according to the original position, and then the outer tooth plate 1 is limited by the nut 10. The rubber ball 9 can increase the contact area between the gasket 8 and the nut 10, and increase the friction between the gasket 8 and the nut 10, so that the nut 10 can be stably fixed on the outer side of the spiral short rod 7, that is, the replacement of the outer tooth plate 1 or the inner tooth plate 2 is realized. In the prior art, the cotter pin 12 is detachable. When the connecting chain plate 11 is to be disassembled, the cotter pin 12 can be pulled out of the connecting chain plate 11, and then the reverse operation can be performed to install the connecting chain plate 11.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A toothed chain with replaceable teeth, comprising an outer tooth (1), an inner tooth (2), a connecting chain plate (11) and a split pin (12), characterized in that: A roller (3) is arranged between a group of the inner tooth plates (2), a drum (4) is arranged on the inner side of the roller (3), a connecting shaft (5) is arranged on the inner side of the drum (4), one end of the connecting shaft (5) is fixedly connected to a limit block (6), one end of the connecting shaft (5) away from the limit block (6) is fixedly connected to a spiral short rod (7), a gasket (8) is sleeved on the outer side of the spiral short rod (7), and a nut (10) is spirally connected to the outer side of the spiral short rod (7).

2. A toothed chain with replaceable teeth according to claim 1, characterized in that: A plurality of rubber balls (9) are arranged on the outside of the gasket (8), the rubber balls (9) are arranged in an array at equal angles with the same center, and the rubber balls (9) are arranged between the gasket (8) and the nut (10).

3. The tooth-replaceable sharp-tooth chain according to claim 1, characterized in that: The connecting shaft (5) passes through the outer tooth plate (1), the inner tooth plate (2) and the roller (4) in sequence, and the inner tooth plate (2) is arranged between a group of outer tooth plates (1).

4. The tooth-replaceable sharp-tooth chain according to claim 1, characterized in that: The limit block (6) is arranged on the outside of the outer tooth plate (1), and the spiral short rod (7) is arranged on the outside of the outer tooth plate (1).

5. The tooth-replaceable sharp-tooth chain according to claim 1, characterized in that: There are two cotter pins (12) in total, and the cotter pins (12) are of equal size.

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