High-strength shaft wheel connecting structure

Abstract

The utility model relates to the technical field of axle wheel connection, and discloses a high-strength axle wheel connecting structure which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is located at the inner end of the main body mechanism, the main body mechanism comprises an axle body, an outer cylinder body and a wheel body, the outer cylinder body is fixedly installed on the outer side of the axle body, and the wheel body is fixedly installed on the outer side of the outer cylinder body. The wheel body is fixedly installed on the right side of the outer barrel body, the main body mechanism comprises a sealing piece, a threaded inner connector, a rubber ring and a threaded shaft, and the sealing piece is in threaded connection with the shaft body. According to the high-strength shaft and wheel connecting structure, the main body mechanism is installed, the threads are arranged on the inner side of the threaded inner connector, the outer barrel is installed and mainly used for limiting the wheel body, the connecting position between the shaft body and the wheel body is prevented from being eroded, the threaded inner connector is in threaded connection with the threaded shaft, and therefore the shaft body and the wheel body can be connected more firmly; water can be prevented from entering the connecting position between the shaft body and the wheel body through installation of the sealing piece and the rubber ring, the connecting position is prevented from being rusted, and the safety of the structure is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft-wheel connection, in particular to a high-strength shaft-wheel connection structure. Background Art

[0002] Flat keys are keys that rely on two side surfaces as working surfaces and transmit torque by squeezing the key and the side of the keyway. Flat keys are divided into three types: ordinary flat keys, thin flat keys, and guide flat keys. Ordinary flat keys have good centering, high positioning accuracy, and are easy to fold and install, but they cannot achieve axial fixation of parts on the shaft. They are used for high-speed shafts or shafts that bear impact or variable loads; thin flat keys are used for thin-walled structures and places where the torque transmission is small; guide flat keys use screws to fix the keys on the shaft. They are used in places where the parts on the shaft do not move much along the shaft. They are simple to manufacture, easy to assemble and disassemble, and have good centering. They are used in fixed connections with high precision, high speed, and under impact or variable loads. They can also be used in guide connections with general requirements. This form is often used for the connection between gears, worm wheels, pulleys and shafts. The upper and lower surfaces of the wedge key are both working surfaces. The upper surface of the key has a slope of 1:100, and the bottom surface of the hub keyway has a slope of 1:100. When the wedge key is driven into the shaft and hub, a large preload is generated on the surface. During operation, the torque is mainly transmitted by friction and can withstand axial force in one direction.

[0003] The existing patent CN201078379Y high-strength shaft-wheel connection structure is proposed. The utility model includes a shaft and a wheel. The shaft and the wheel are connected by a flat key. The shaft end face of the shaft is provided with a radial flat keyway matching the gland. The radial flat keyway on the gland and the radial flat keyway on the shaft end face are connected to the gland and the shaft end face of the shaft by a radial flat key and a bolt. Advantages: First, it fundamentally solves the creep deformation of the flat key between the wheel and the shaft when subjected to a large shear force, avoids the gap between the shaft and the wheel, and ensures the overall processing accuracy and bonding strength of the machine tool; second, it greatly improves the transmission torque between the shaft and the wheel. Even if the dynamic load is exceeded, it will not affect the stability of the dynamic load, which not only prolongs the service life of the whole machine, but also reduces the trouble-free rate of the equipment to the lowest.

[0004] However, the existing patent CN201078379Y avoids the gap between the shaft and the wheel, ensuring the overall processing accuracy and bonding strength of the machine tool; secondly, it greatly improves the transmission torque between the shaft and the wheel. Even if the dynamic load is exceeded, it will not affect the stability of the dynamic load, which not only extends the service life of the whole machine, but also reduces the trouble-free rate of the equipment to the lowest. However, during the transmission process of the shaft and the wheel, the shaft and the wheel may vibrate, and the connection between the shaft and the wheel may rust, which may then affect the transmission efficiency. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a high-strength shaft-wheel connection structure to solve the problem mentioned in the above background technology that during the transmission process of the shaft and the wheel, the shaft and the wheel may vibrate, and the connection between the shaft and the wheel may rust, which may affect the transmission efficiency.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength shaft-wheel connection structure, including a main mechanism and an auxiliary mechanism, wherein the auxiliary mechanism is located at the inner end of the main mechanism, and the main mechanism includes a shaft body, an outer cylinder body and a wheel body, wherein the outer cylinder body is fixedly installed on the outside of the shaft body, and the wheel body is fixedly installed on the right side of the outer cylinder body; the main mechanism includes a seal, a threaded inner interface, a rubber ring and a threaded shaft, and the seal is threadedly connected to the shaft body.

[0009] Preferably, the threaded inner interface is fixedly arranged on the left side of the seal, and the threaded inner interface is movably installed inside the outer cylinder. The inner side of the threaded inner interface is provided with threads. The installation of the outer cylinder is mainly used to limit the wheel body to prevent the connection between the shaft body and the wheel body from being corroded, thereby effectively improving the safety of the structure.

[0010] Preferably, the rubber ring is fixedly mounted on the right end of the inner side of the outer cylinder, and the rubber ring is fixedly mounted on the outer side of the threaded inner interface, and the threaded inner interface is threadedly connected to the threaded shaft, so that the shaft body and the wheel body can be connected more tightly, effectively improving the safety of the structure.

[0011] Preferably, the threaded shaft is fixedly arranged at the right end of the shaft body, and the threaded shaft is threadedly connected to the threaded inner interface. The installation of the seal and the rubber ring can prevent water from entering the connection between the shaft body and the wheel body, prevent it from rusting, and effectively improve the safety of the structure.

[0012] Preferably, the auxiliary mechanism includes a limit block, a telescopic shaft, a hollow shaft and a buffer spring. The limit block is fixedly arranged at the inner end of the outer cylinder. The limit blocks are evenly distributed at the inner end of the outer cylinder. When the shaft body and the wheel body shake during transmission, the telescopic shaft squeezes the inner side of the hollow shaft.

[0013] Preferably, the telescopic shaft is movably mounted on the outer end of the limit block, the hollow shaft fixing sleeve is arranged on the outer side of the telescopic shaft, the telescopic shaft is pressed toward the inner side of the hollow shaft, and the buffer spring contracts.

[0014] Preferably, the hollow shaft is evenly distributed on the outside of the shaft body, and the buffer spring is movably installed on the outside of the telescopic shaft. The buffer spring contracts to dampen the shaft body, which can reduce the vibration amplitude of the shaft body at the connection with the wheel body, and effectively improve the stability of the structure.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The high-strength shaft-wheel connection structure is provided with threads on the inner side of the threaded inner interface through the installation of the main body mechanism. The installation of the outer cylinder is mainly used to limit the wheel body to prevent the connection between the shaft body and the wheel body from being corroded. The threaded inner interface is threadedly connected with the threaded shaft, which can make the connection between the shaft body and the wheel body more tightly. The installation of the seal and the rubber ring can prevent the connection between the shaft body and the wheel body from water ingress and rust, thereby effectively improving the safety of the structure.

[0017] 2. This high-strength shaft-wheel connection structure, through the installation of auxiliary mechanisms, when the shaft and the wheel body shake during the transmission process, the telescopic shaft is squeezed toward the inner side of the hollow shaft, the buffer spring contracts, and the shaft body is shock-absorbing, which can reduce the vibration amplitude of the shaft at the connection with the wheel body and effectively improve the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the seal of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the outer cylinder of the utility model;

[0021] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0022] In the figure: 1. main mechanism; 101. shaft body; 102. outer cylinder body; 103. wheel body; 104. sealing element; 105. threaded inner interface; 106. rubber ring; 107. threaded shaft; 2. auxiliary mechanism; 201. limit block; 202. telescopic shaft; 203. hollow shaft; 204. buffer spring. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 4The utility model provides a technical solution: a high-strength shaft-wheel connection structure, including a main mechanism 1 and an auxiliary mechanism 2, the auxiliary mechanism 2 is located at the inner end of the main mechanism 1, the main mechanism 1 includes a shaft body 101, an outer cylinder 102 and a wheel body 103, the outer cylinder 102 is fixedly installed on the outer side of the shaft body 101, and the wheel body 103 is fixedly installed on the right side of the outer cylinder 102; the main mechanism 1 includes a seal 104, a threaded inner interface 105, a rubber ring 106 and a threaded shaft 107, the seal 104 is threadedly connected to the shaft body 101, the threaded inner interface 105 is fixedly arranged on the left side of the seal 104, the threaded inner interface 105 is movably installed inside the outer cylinder 102, the rubber ring 106 is fixedly installed at the right end of the inner side of the outer cylinder 102, the rubber ring 106 is fixedly installed on the outer side of the threaded inner interface 105, the threaded shaft 107 is fixedly arranged at the right end of the shaft body 101, and the threaded shaft 107 is threadedly connected to the threaded inner interface 105.

[0025] The auxiliary mechanism 2 includes a limit block 201, a telescopic shaft 202, a hollow shaft 203 and a buffer spring 204. The limit block 201 is fixedly arranged at the inner end of the outer cylinder 102, and the limit block 201 is evenly distributed at the inner end of the outer cylinder 102. The telescopic shaft 202 is movably installed at the outer end of the limit block 201. The hollow shaft 203 fixed sleeve is arranged on the outer side of the telescopic shaft 202. The hollow shaft 203 is evenly distributed on the outer side of the shaft body 101. The buffer spring 204 is movably installed on the outer side of the telescopic shaft 202. When using a high-strength shaft-wheel connection structure, a thread is provided on the inner side of the threaded inner interface 105. The installation of the outer cylinder 102 is mainly used for the wheel body 10 3 is limited to prevent the connection between the shaft body 101 and the wheel body 103 from being corroded. The threaded inner interface 105 is threadedly connected with the threaded shaft 107, which can make the connection between the shaft body 101 and the wheel body 103 more tightly. The installation of the seal 104 and the rubber ring 106 can prevent water from entering the connection between the shaft body 101 and the wheel body 103 and prevent it from rusting. When the shaft body 101 and the wheel body 103 shake during the transmission process, the telescopic shaft 202 squeezes the inner side of the hollow shaft 203, and the buffer spring 204 contracts to reduce the shock of the shaft body 101, which can reduce the vibration amplitude of the shaft body 101 at the connection with the wheel body 103.

[0026] Working principle: When using a high-strength shaft-wheel connection structure, a thread is provided on the inner side of the threaded inner interface 105. The installation of the outer cylinder 102 is mainly used to limit the wheel body 103 to prevent the connection between the shaft body 101 and the wheel body 103 from being corroded. The threaded inner interface 105 is threadedly connected to the threaded shaft 107, which can make the connection between the shaft body 101 and the wheel body 103 more tightly. The installation of the seal 104 and the rubber ring 106 can prevent water from entering the connection between the shaft body 101 and the wheel body 103 and prevent it from rusting. When the shaft body 101 and the wheel body 103 shake during the transmission process, the telescopic shaft 202 is squeezed toward the inner side of the hollow shaft 203, and the buffer spring 204 contracts to reduce the shock of the shaft body 101, which can reduce the vibration amplitude of the shaft body 101 at the connection with the wheel body 103.

[0027] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A high-strength shaft-wheel connection structure, comprising a main mechanism (1) and an auxiliary mechanism (2), characterized in that: The auxiliary mechanism (2) is located at the inner end of the main mechanism (1); the main mechanism (1) comprises a shaft body (101), an outer cylinder body (102) and a wheel body (103); the outer cylinder body (102) is fixedly mounted on the outside of the shaft body (101); and the wheel body (103) is fixedly mounted on the right side of the outer cylinder body (102); The main body mechanism (1) comprises a sealing member (104), a threaded internal interface (105), a rubber ring (106) and a threaded shaft (107); the sealing member (104) is threadedly connected to the shaft body (101).

2. A high-strength shaft-wheel connection structure according to claim 1, characterized in that: The threaded inner interface (105) is fixedly arranged on the left side of the sealing member (104), and the threaded inner interface (105) is movably installed inside the outer cylinder (102).

3. A high-strength shaft-wheel connection structure according to claim 2, characterized in that: The rubber ring (106) is fixedly mounted on the right end of the inner side of the outer cylinder (102), and the rubber ring (106) is fixedly mounted on the outer side of the threaded inner interface (105).

4. A high-strength shaft-wheel connection structure according to claim 3, characterized in that: The threaded shaft (107) is fixedly arranged at the right end of the shaft body (101), and the threaded shaft (107) is threadedly connected to the threaded inner interface (105).

5. A high-strength shaft-wheel connection structure according to claim 4, characterized in that: The auxiliary mechanism (2) comprises a limit block (201), a telescopic shaft (202), a hollow shaft (203) and a buffer spring (204); the limit block (201) is fixedly arranged at the inner end of the outer cylinder (102); and the limit blocks (201) are evenly distributed at the inner end of the outer cylinder (102).

6. A high-strength shaft-wheel connection structure according to claim 5, characterized in that: The telescopic shaft (202) is movably mounted on the outer end of the limit block (201), and the fixing sleeve of the hollow shaft (203) is arranged on the outer side of the telescopic shaft (202).

7. A high-strength shaft-wheel connection structure according to claim 6, characterized in that: The hollow shafts (203) are evenly distributed on the outside of the shaft body (101), and the buffer spring (204) is movably mounted on the outside of the telescopic shaft (202).

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