High-strength gear shaft

Abstract

The utility model relates to the technical field of gear shafts, and discloses a high-strength gear shaft which comprises an inner layer, an outer layer is arranged on the outer side of the inner layer in a sleeved mode, the inner layer comprises an inner rod, six limiting grooves are formed in the lower portion of the outer side wall of the inner rod in a circular mode, the lower end of the inner rod is fixedly connected with an extension rod, and the outer layer comprises an outer pipe. Six plum blossom teeth are circularly arranged at the end part of the outer pipe, and the six plum blossom teeth are respectively connected into the six limiting grooves in a sliding manner. According to the quincunx gear, the inner-layer structure and the outer-layer structure can effectively disperse, reduce abrasion and prolong the service life, maintenance and replacement are easier and more convenient through the inner-layer structure and the outer-layer structure, the maintenance and replacement cost can be remarkably reduced through the inner-layer structure and the outer-layer structure, the extension blocks are slidably connected into the limiting grooves, the connectivity between the quincunx gear and the limiting grooves is conveniently improved, and the service life of the quincunx gear is prolonged. And the six plum blossom teeth are arranged to be in a trapezoid shape, so that the torsional strength of the six plum blossom teeth is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of gear shaft technology, and in particular to a high-strength gear shaft. Background Technology

[0002] Gears are mechanical transmission devices used to transmit power and motion. They achieve this function through the meshing of teeth and are widely used in various mechanical equipment and systems. Gear shafts are used to connect gears, transmitting power from one component to another, realizing the transmission and speed change of rotational motion.

[0003] There are still some problems in the use of existing high-strength gear shafts. Traditional high-strength gear shafts are prone to wear during use, and once damaged, repair and replacement are very difficult. The cost of replacing the entire traditional gear shaft is high. Therefore, those skilled in the art have provided a high-strength gear shaft to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-strength gear shaft. This high-strength gear shaft features an inner and outer layer structure that effectively disperses and reduces wear, extends service life, simplifies maintenance and replacement, and significantly reduces repair and replacement costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-strength gear shaft, comprising an inner layer, wherein an outer layer is sleeved on the outer side of the inner layer;

[0006] The inner layer includes an inner rod, and six limiting grooves are arranged in a circle near the lower part of the outer side wall of the inner rod. An extension rod is fixedly connected to the lower end of the inner rod.

[0007] The outer layer includes an outer tube, and the end of the outer tube is provided with six staggered teeth arranged in a circular pattern. The six staggered teeth are slidably connected to the interior of six limiting grooves.

[0008] Through the above technical solutions, the inner and outer two-layer structure can effectively disperse and reduce wear, extend service life, make maintenance and replacement easier, and significantly reduce maintenance and replacement costs.

[0009] Furthermore, each of the six plum blossom teeth has an extension block fixedly connected to its inner side, and the other end of each of the six extension blocks is fixedly connected to the lower part of the inner wall of the outer tube.

[0010] The above technical solution facilitates the improvement of the connection between the plum blossom teeth and the limiting groove, and enhances the torsional strength of the plum blossom teeth.

[0011] Furthermore, a limiting plate is fitted on the upper part of the outer side wall of the extension rod. Six limiting bolts are arranged in a circle on the lower end face of the limiting plate. The six limiting bolts pass through the lower end face of the limiting plate and extend to the upper end of the limiting plate, and their ends are all threaded to the lower end face of the inner rod.

[0012] The above technical solution uses six limiting bolts to limit the limiting plate, thereby fixing the outer tube to the lower end face of the inner rod and limiting the outer tube.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the inner and outer two-layer structure of the high-strength gear shaft can effectively disperse and reduce wear, extend service life, and make maintenance and replacement easier. The inner and outer two-layer structure can significantly reduce the cost of maintenance and replacement.

[0015] 2. In this utility model, the extension block is slidably connected inside the limiting groove, which facilitates the connection between the plum blossom teeth and the limiting groove and improves the torsional strength of the plum blossom teeth.

[0016] 3. In this utility model, the six staggered teeth are arranged in a trapezoidal shape to increase the torsional strength of the six staggered teeth and improve the service life of the equipment. Attached Figure Description

[0017] Figure 1 This is a perspective view of a high-strength gear shaft proposed in this utility model;

[0018] Figure 2 This is a three-dimensional exploded view of a high-strength gear shaft proposed in this utility model;

[0019] Figure 3 This is a perspective view of the outer layer of a high-strength gear shaft proposed in this utility model.

[0020] Figure 4 This is a perspective view of the inner layer of a high-strength gear shaft proposed in this utility model.

[0021] Legend:

[0022] 1. Outer layer; 101. Outer tube; 102. Plum blossom tooth; 103. Extension block; 2. Inner layer; 201. Inner rod; 202. Limiting groove; 203. Extension rod; 3. Limiting plate; 4. Limiting bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1-4 This utility model provides an embodiment of a high-strength gear shaft, comprising an inner layer 2, an outer layer 1 sleeved on the outer side of the inner layer 2, the inner layer 2 comprising an inner rod 201, six limiting grooves 202 arranged in a circular pattern on the lower part of the outer side wall of the inner rod 201, an extension rod 203 fixedly connected to the lower end of the inner rod 201, and the outer layer 1 comprising an outer tube 101, six staggered teeth 102 arranged in a circular pattern at the end of the outer tube 101, the six staggered teeth 102 being slidably connected to the six limiting grooves 202 respectively. The inner and outer layer structure can effectively disperse and reduce wear, extend service life, make maintenance and replacement easier, and significantly reduce maintenance and replacement costs.

[0025] like Figure 2 and 3 As shown, each of the six lobed teeth 102 has an extension block 103 fixedly connected to its inner side. The other end of each of the six extension blocks 103 is fixedly connected to the lower part of the inner wall of the outer tube 101, which facilitates the connection between the lobed teeth 102 and the limiting groove 202 and improves the torsional strength of the lobed teeth 102.

[0026] like Figure 2 As shown, a limiting plate 3 is fitted on the upper part of the outer side wall of the extension rod 203. Six limiting bolts 4 are arranged in a circle on the lower end face of the limiting plate 3. The six limiting bolts 4 pass through the lower end face of the limiting plate 3 and extend to the upper end of the limiting plate 3. The ends of the bolts 4 are threaded to the lower end face of the inner rod 201. The limiting plate 3 is limited by the six limiting bolts 4, thereby fixing the outer tube 101 to the lower end face of the inner rod 201 and limiting the outer tube 101.

[0027] Working principle: When wear occurs, the six limiting bolts 4 are removed, the limiting plate 3 is pulled out, and the outer tube 101 is pulled out downwards, so that the six extension blocks 103 and the six teeth 102 are pulled out downwards along the limiting groove 202. Then, the new outer tube 101 is fitted onto the inner rod 201, the limiting plate 3 is fitted onto the extension rod 203, and the limiting bolts 4 are used for limiting and fixing, which facilitates replacement and makes maintenance and replacement more convenient. The inner and outer two-layer structure can significantly reduce the cost of maintenance and replacement.

[0028] The extension block 103 is slidably connected inside the limiting groove 202, which facilitates the connection between the plum blossom teeth 102 and the limiting groove 202, improves the torsional strength of the plum blossom teeth 102, and increases the torsional strength of the six plum blossom teeth 102 by setting them in a trapezoidal shape, thereby improving the service life of the equipment.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-strength gear shaft comprising an inner layer (2), characterized in that: The inner layer (2) is sleeved with an outer layer (1) outside; The inner layer (2) comprises an inner rod (201), six limiting grooves (202) are arranged in a circular shape at the lower part of the outer wall of the inner rod (201), and an extension rod (203) is fixedly connected to the lower end of the inner rod (201); The outer layer (1) comprises an outer tube (101), six plum teeth (102) are arranged in a circular shape at the end of the outer tube (101), and the six plum teeth (102) are respectively slidably connected inside the six limiting grooves (202).

2. A high-strength gear shaft according to claim 1, characterized in that: The inner side of each of the six plum teeth (102) is fixedly connected with an extension block (103), and the other end of each of the six extension blocks (103) is fixedly connected to the inner side wall of the outer tube (101) at the lower part.

3. A high-strength gear shaft as defined in claim 1, wherein: The outer side wall of the extension rod (203) is sleeved with a limiting plate (3) at the upper part, six limiting bolts (4) are arranged in a circular shape at the lower end face of the limiting plate (3), the six limiting bolts (4) respectively pass through the lower end face of the limiting plate (3) to the upper end of the limiting plate (3), and the end portions are threadedly connected to the lower end face of the inner rod (201).

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