High-strength gear shaft

Abstract

The utility model discloses a high-strength gear shaft, belongs to the technical field of gear shafts, and solves the problems that a gear needs to be frequently detached and replaced due to the fact that a crusher is easy to damage during working, interference fit between the gear shaft and the gear is difficult to maintain due to abrasion after repeated replacement, and the service life of the gear shaft is prolonged. Therefore, it is possible to replace the gear shaft together. Comprising a shaft body, and one end of the shaft body is provided with a connecting groove which is recessed inwards. When the gear shaft works, the gear is sleeved on the outer side of the shaft body until the gear is attached to the limiting ring. Then the connecting shaft is knocked from the opening of the connecting groove, the sliding shaft is pushed to slide, and the jacking shaft enters the space between the sliding blocks. Along with further displacement of the sliding shaft, the guiding main face is attached to the guiding auxiliary face of the sliding block, under guiding of the guiding main face and the guiding auxiliary face, the jacking shaft and the sliding shaft displace, the sliding block moves in the wide groove, the jacking block moves in the narrow groove and abuts against the inner ring of the gear, and the gear is prevented from being disengaged. Finally, the limiting shaft is screwed in to abut against the sliding shaft, and the top shaft and the sliding shaft are prevented from loosening.

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] A gear shaft is a common mechanical component used to mount gears for transmitting power and motion. The shaft body is typically cylindrical, while the gears are designed with different modules and numbers of teeth to meet varying transmission ratio requirements. The primary function of a gear shaft is to transfer power from one component to another, while also changing the direction and speed of motion. Gear shafts are widely used in various mechanical transmission systems, such as those in automobiles, motorcycles, and industrial equipment. Their design must consider factors such as strength, rigidity, and wear resistance to ensure stability and reliability under high load and high-speed operating conditions. Gear shafts are typically made of steel or cast iron, manufactured through forging, machining, and heat treatment processes to improve their mechanical properties and service life.

[0003] When gear shafts and gears are used in crushers, they are usually connected by an interference fit. However, due to the operation of the crusher, they are easily damaged, so the gears often need to be disassembled and replaced. After multiple replacements, the interference fit between the gear shaft and the gear is difficult to maintain due to wear. Therefore, it may be necessary to replace the gear shaft as well, resulting in the need to disassemble the entire machine.

[0004] Therefore, a high-strength gear shaft is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-strength gear shaft.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-strength gear shaft includes a shaft body. One end of the shaft body has an inwardly recessed connecting groove. The inner circumference of the connecting groove away from its opening has several wide grooves. A narrow groove penetrating the outer circumference of the shaft body is formed on the side of the wide groove away from the connecting groove. A slider is slidably connected in the wide groove. A top block that can slide in the narrow groove is fixedly connected to the slider. A sliding shaft is detachably connected in the connecting groove. The end of the sliding shaft is fixedly connected to a top shaft that can be embedded between several sliders. A guide surface is formed at the junction of the top shaft and the sliding shaft.

[0008] Preferably, a limiting shaft that restricts the separation of the top shaft and the sliding shaft is detachably connected within the connecting groove.

[0009] Preferably, the connecting groove is internally threaded at an inner end of the opening thereof, and the limiting shaft is externally threaded, and the connecting groove and the limiting shaft are threadedly connected by the internal thread and the external thread.

[0010] Preferably, the limiting shaft is internally threaded at an inner end of the opening thereof.

[0011] Preferably, the limiting shaft is internally threaded at an inner end of the opening thereof.

[0012] Preferably, the sliding block is internally threaded at an inner end of the opening thereof.

[0013] Preferably, the shaft body is externally threaded at an inner end of the opening thereof.

[0014] The utility model has the advantages of the following beneficial effects:

[0015] In operation, the gear sleeve is first arranged outside the shaft body until the gear sleeve is attached to the limiting ring. Then the connecting shaft is knocked from the opening of the connecting groove to push the sliding shaft to slide, and the top shaft enters between the sliding blocks. With further displacement of the sliding shaft, the guiding main surface is attached to the guiding sub-surface of the sliding block, and under the guidance of the two, the top shaft and the sliding shaft are displaced, the sliding blocks move in the wide groove, and the top blocks move in the narrow groove and are attached to the inner ring of the gear to prevent the gear from being detached. Finally, the limiting shaft is screwed in to tightly attach the sliding shaft to prevent the top shaft and the sliding shaft from being loosened. If the gear needs to be disassembled, only reverse operation is needed, and the connecting through groove on the connecting shaft is convenient for tool connection to realize reverse displacement of the top shaft and the sliding shaft to complete disassembly and replacement. BRIEF DESCRIPTION OF DRAWINGS

[0016] To make the technical solutions of the embodiments of the utility model clearer, the following will briefly introduce the drawings needed in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without creative labor.

[0017] Figure 1 The drawings are schematic views of the utility model;

[0018] Figure 2 The drawings are schematic views of the utility model; Figure One ;

[0019] Figure 3 The drawings are schematic views of the utility model; Figure Two .

[0020] Fig. 1, shaft body; 2, limiting ring; 3, connecting groove; 4, limiting shaft; 5, transmission groove; 6, embedding groove; 7, wide groove; 8, narrow groove; 9, sliding block; 10, top block; 11, guiding surface; 12, sliding shaft; 13, top shaft; 14, guiding main surface; 15, connecting shaft; 16, connecting through groove. DETAILED DESCRIPTION

[0021] To make the objects, technical solutions, and advantages of the embodiments of the present application clearer, the following will be a clear and complete description of the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0024] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In addition, the terms "first", "second", "third", and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the utility model, still need explaining, unless another explicit provision and limitation, term "arrangement", "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through intermediate medium indirectly connected, can be two elements inside the intercommunication.For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0027] A high-strength gear shaft, as shown in Figures 1 to 3 The shaft body 1 has a connecting groove 3 recessed inward at one end, a plurality of wide grooves 7 are formed in the inner ring of the end of the connecting groove 3 away from the opening, a narrow groove 8 penetrating the outer ring of the shaft body 1 is formed at the side of the wide groove 7 away from the connecting groove 3, a limiting ring 2 is fixedly connected to the side of the narrow groove 8 of the shaft body 1, a sliding block 9 is slidably connected in the wide groove 7, a top block 10 that can slide in the narrow groove 8 is fixedly connected to the sliding block 9, a sliding shaft 12 is detachably connected in the connecting groove 3, a top shaft 13 that can be embedded between the sliding blocks 9 is fixedly connected to the end of the sliding shaft 12, a guide main surface 14 is formed at the junction of the top shaft 13 and the sliding shaft 12, and a guide sub-surface 11 parallel to the guide main surface 14 is formed in the inner ring of the side of the sliding block 9 facing the sliding shaft 12.

[0028] A limiting shaft 4 that limits the separation of the top shaft 13 and the sliding shaft 12 is detachably connected in the connecting groove 3, internal threads are formed in the inner ring of the end of the connecting groove 3 facing the opening, external threads are formed in the outer ring of the limiting shaft 4, the connecting groove 3 and the limiting shaft 4 are threadedly connected through the internal threads and the external threads, a positive polygonal transmission groove 5 is formed in the end of the limiting shaft 4 away from the sliding shaft 12, a connecting shaft 15 is fixedly connected to the end of the sliding shaft 12 away from the top shaft 13, an embedding groove 6 that can accommodate the connecting shaft 15 is formed in the end of the limiting shaft 4 facing the connecting shaft 15, and a connecting through groove 16 penetrating the outer ring of the connecting shaft 15 is formed.

[0029] The utility model discloses a gear is installed on the shaft body 1, and the gear is connected with the top axle 13 and the sliding axle 12 through the connecting groove 3, and the sliding axle 12 is connected with the sliding block 9 through the wide groove 7 and the narrow groove 8, and the sliding block 9 is connected with the top block 10, and the top block 10 is connected with the inner ring of the gear, thereby avoiding the gear from separating from the shaft body 1.

[0030] If the gear needs to be disassembled when being damaged, only need to reverse the above operation, and the connecting through groove 16 on the connecting axle 15 can be conveniently used by the operator to use the tool to connect, so that the top axle 13 and the sliding axle 12 can be reversely displaced in the connecting groove 3, and then the disassembly and replacement action is completed.

[0031] The above only for the preferred embodiment of the utility model has been, and is not used to limit the utility model, for the skilled person in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-strength gear shaft, characterized in that, The device includes a shaft (1), one end of which has an inwardly recessed connecting groove (3). The inner circumference of the connecting groove (3) away from its opening has several wide grooves (7). The side of the wide groove (7) away from the connecting groove (3) has a narrow groove (8) that penetrates the outer circumference of the shaft (1). A slider (9) is slidably connected in the wide groove (7). A top block (10) that can slide in the narrow groove (8) is fixedly connected to the slider (9). A sliding shaft (12) is detachably connected in the connecting groove (3). A top shaft (13) that can be embedded between several sliders (9) is fixedly connected to the end of the sliding shaft (12). A guide surface (14) is provided at the junction of the top shaft (13) and the sliding shaft (12).

2. The high-strength gear shaft according to claim 1, characterized in that, The connecting groove (3) is detachably connected to a limiting shaft (4) that restricts the separation of the top shaft (13) and the sliding shaft (12).

3. A high-strength gear shaft according to claim 2, characterized in that, The inner ring of the connecting groove (3) facing its opening is provided with an internal thread, and the outer ring of the limiting shaft (4) is provided with an external thread. The connecting groove (3) and the limiting shaft (4) are connected by the internal thread and the external thread.

4. A high-strength gear shaft according to claim 2, characterized in that, The limiting shaft (4) has a regular polygonal transmission groove (5) at the end away from the sliding shaft (12).

5. A high-strength gear shaft according to claim 2, characterized in that, The sliding shaft (12) is fixedly connected to a connecting shaft (15) at one end away from the top shaft (13). The limiting shaft (4) has a groove (6) at one end facing the connecting shaft (15) that can accommodate the connecting shaft (15). The outer ring of the connecting shaft (15) has a through connecting groove (16).

6. A high-strength gear shaft according to claim 1, characterized in that, The slider (9) has a guide side (11) on the inner ring of the side facing the slide shaft (12) that is parallel to the guide main surface (14).

7. A high-strength gear shaft according to claim 1, characterized in that, The outer ring of the shaft (1) is fixedly connected to a limiting ring (2) located on one side of the narrow groove (8).

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