Safety protection gear convenient to disassemble and assemble

Abstract

The invention provides a safety protection gear convenient to disassemble and assemble, belongs to the technical field of gears, and solves the technical problems that an existing safety protection gear is difficult to disassemble and assemble, easy to wear due to no protection and the like. Comprising a gear ring assembly and a gear shaft, a plurality of bolts evenly distributed in the circumferential direction are arranged at the front end of the outer side of a gear hub assembly, elastic gaskets are arranged between the bolts and the gear hub assembly, the bolts are connected to the front end of the outer side of the gear ring assembly in a screwed mode, a locking assembly is arranged in the gear hub assembly, and the gear shaft abuts against the locking assembly in an embedded mode. A turbulent flow fan is arranged on the rear side of the gear hub assembly. Axial positioning and circumferential fixing are achieved through split assembly, separation can be achieved by loosening bolts during disassembly, disassembly, assembly and maintenance are convenient, keyless interference connection can be achieved, meanwhile, multi-stage embedding is matched, circumferential zero-back-clearance transmission is achieved, the relative sliding risk is eliminated, dust and impurities can be prevented from entering a meshing area and an internal structure, abnormal abrasion is avoided, and the service life of the clutch is prolonged. And the operation stability and reliability are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of gears, and relates to a safety protection gear, in particular to a safety protection gear convenient to disassemble and assemble. BACKGROUND

[0002] A gear is a mechanical element with teeth on a rim capable of continuously meshing to transmit motion and power, and is a toothed mechanical part capable of meshing with each other. Traditional gears are mainly fixed through riveting, welding or interference fit, and destructive operation is required for disassembly, which is high in maintenance cost and time-consuming.

[0003] With the development of industrial automation, in the case of long-term motion, the gear often appears abnormal wear and breakage. Generally, when maintaining, the gear and the gear shaft are disassembled as a whole, and then the entire gear is replaced. Since the gear is firmly installed on the gear shaft, the disassembly is time-consuming, the maintenance efficiency is low, and in the use process of the gear, the external dust falling between the gears will cause abnormal wear of the gears.

[0004] Therefore, the application provides a safety protection gear convenient to disassemble and assemble. The axial positioning is achieved through split assembly, and the circumferential fixing is achieved. When disassembling, the gear can be separated by loosening the bolts, so that the gear is convenient to disassemble and assemble and maintain. The gear can be connected without key and interference, and the multi-stage embedding is matched to achieve the circumferential zero-backlash transmission, eliminate the relative sliding risk, ensure the stability of the torque transmission and the transmission accuracy, prevent the dust and impurities from entering the meshing area and the internal structure, avoid abnormal wear, and improve the operation stability and reliability. SUMMARY

[0005] The application aims at the above problems existing in the prior art, and provides a safety protection gear convenient to disassemble and assemble. The application aims to solve the technical problems of how to achieve safety protection of the gear, avoid abnormal wear, and realize quick disassembly and assembly.

[0006] The application can be realized by the following technical scheme.

[0007] A safety protection gear convenient to disassemble and assemble, comprising a gear ring assembly and a gear shaft, wherein the gear hub assembly is slidably embedded on the gear ring assembly, the front end of the gear hub assembly penetrates the gear ring assembly, the outer front end of the gear hub assembly is provided with a plurality of circumferentially distributed bolts, elastic washers are arranged between the bolts and the gear hub assembly, the bolts are all screwed on the outer front end of the gear ring assembly, the inside of the gear hub assembly is provided with a locking assembly, the gear shaft penetrates the gear hub assembly, the locking assembly and the gear ring assembly, and is embedded and abuts on the locking assembly, and the rear side of the gear hub assembly is provided with a spoiler fan.

[0008] The working principle of the present application is as follows: during installation, the gear hub assembly is slidingly fitted inside the gear ring assembly, the front end of the gear hub assembly passes through the gear ring assembly, and the gear ring assembly and the gear hub assembly are firmly connected by a plurality of bolts, an elastic gasket is arranged between each bolt and the gear hub assembly, which not only enhances the reliability of the connection, but also effectively absorbs vibration, relieves impact load, prolongs service life, and then the locking assembly is placed inside the gear hub assembly, the gear shaft penetrates the gear hub assembly, the locking assembly and the gear ring assembly, and is fitted against the locking assembly, thereby realizing stable transmission of torque, the locking assembly plays a role of axial positioning and radial locking inside the gear hub assembly, ensuring that the gear shaft and the gear hub assembly do not slide relative to each other, improving transmission accuracy and safety.

[0009] At the same time, a turbulence fan is arranged at the rear side of the gear hub assembly, which can generate airflow when rotating synchronously with the gear, effectively preventing dust and impurities from entering the inside of the gear, reducing the meshing temperature when the gear is running, and improving overall protection performance and running stability.

[0010] The gear hub assembly comprises a gear hub body, the inside of the gear hub body is hollow, the rear side of the gear hub body is provided with a fixing ring, the middle position of the fixing ring is provided with an avoiding hole arranged along the front-rear axis, the avoiding hole is communicated with the inside of the gear hub body, the outside of the fixing ring is provided with a plurality of circumferentially distributed fan blades, the outside of the gear hub body is provided with a plurality of circumferentially distributed clamping strips arranged along the front-rear axis, the clamping strips are in trapezoidal structure, the end of the clamping strip protrudes from the front side end face of the gear hub body, and the end of the clamping strip is provided with a locking hole arranged along the radial direction.

[0011] With the above structure, the fixing ring is used to fix a plurality of fan blades, the fan blades disturb airflow to form wind when rotating with the gear hub body, and the wind blows on the gear ring assembly to form a wind curtain effect, preventing dust from falling on the gear ring assembly and preventing the friction between the gear ring assembly and other gears from increasing, which causes abnormal wear and prolongs the service time, the gear hub body is slidingly fitted on the gear ring assembly through a plurality of clamping strips, the locking hole is used to connect the gear hub body and the gear ring assembly, and the clamping strip is in trapezoidal structure to limit the gear hub body, preventing the gear hub body from shaking inside the gear ring assembly.

[0012] The gear ring assembly comprises a gear ring body, the front side of the gear ring body is provided with a blocking disc, the inner ring of the gear ring body and the outer side of the blocking disc are both provided with a plurality of circumferentially distributed split grooves arranged along the front-rear axial direction, and the split grooves on the gear ring body are in communication with the split grooves of the blocking disc, the number and shape of the split grooves are matched with the clamping strips, the length of the split grooves is equal to the length of the clamping strips, the clamping strips are clamped in the split grooves at the corresponding positions, a plurality of circumferentially distributed radial screw holes are formed on the outer side of the blocking disc, the number and position of the screw holes are matched with the split grooves, when the clamping strips are clamped in the split grooves at the corresponding positions, the screw holes are in communication with the locking holes at the corresponding positions, a fixing hole and a plurality of circumferentially distributed embedding grooves one are formed at the central position of the blocking disc, and the plurality of embedding grooves one are located on the outer side of the fixing hole.

[0013] With the above structure, during installation, the clamping strips are aligned with the split grooves at the corresponding positions, and the gear hub body is pushed, so that the clamping strips slide along the split grooves at the corresponding positions, and the plurality of clamping strips pass through the gear ring body until the gear hub body abuts against the blocking disc, after the pushing is completed, the front side end of the plurality of clamping strips is flush with the front side end surface of the blocking disc, at this time, the screw holes are in communication with the locking holes at the corresponding positions, the blocking disc is used for limiting the gear hub body, and the gear hub body is split in the gear ring body in cooperation with the split grooves, so as to form a split structure, when the gear ring body teeth are broken or abnormally worn, the gear ring body can be quickly disassembled and replaced, the fixing hole is used for the gear shaft to pass through, and the embedding groove one is used for clamping the gear shaft.

[0014] The locking assembly comprises two symmetrically arranged arc-shaped locking rings, the inner ring of the arc-shaped locking ring is provided with a tapered surface with a large front side and a small rear side, and two embedding grooves two are formed in the inner ring of the arc-shaped locking ring.

[0015] With the above structure, the two symmetrically arranged arc-shaped locking rings are matched with the gear shaft through the tapered surface on the front side of the inner ring, when the gear shaft is inserted, the gear shaft abuts against the tapered surface of the arc-shaped locking ring, so that the two arc-shaped locking rings are radially expanded, the arc-shaped locking ring tightly clamps the surface of the gear shaft, a key interference fit is formed, radial locking and torque transmission are realized, at the same time, the embedding grooves two of the inner ring of the arc-shaped locking ring are embedded with the gear shaft, further preventing circumferential relative sliding, ensuring transmission accuracy, and the symmetric design makes the locking force uniformly distributed, avoiding partial load, and the arc-shaped locking ring can be released by applying force in the opposite direction during disassembly, realizing quick maintenance.

[0016] The middle position of the gear shaft is sequentially provided with a second fixing protrusion, a tapered ring and a first fixing protrusion from back to front, a plurality of circumferentially distributed embedding protrusions are arranged on the second fixing protrusion, the tapered ring and the first fixing protrusion, the shape of the embedding protrusions is matched with the embedding grooves two, the embedding protrusions are clamped in the embedding grooves two of the two arc-shaped locking rings, and when the embedding is performed, the tapered surface abuts against the first fixing protrusion, and the two arc-shaped locking rings abut against the inner ring of the gear hub body.

[0017] With the above structure, when the gear shaft is inserted into the locking assembly, the fixing protrusions two on the rear side of the gear shaft contact the conical surface, and when inserted, the plurality of embedded protrusions are embedded in the embedded grooves two inside the two arc-shaped locking rings, the gear shaft is continuously pushed to pass through the fixing hole, the gear shaft is rotated to make the plurality of embedded protrusions embedded in the embedded grooves one in the corresponding position, and the conical surface is abutted on the fixing protrusion one, the inclined surface effect of the conical surface forces the two symmetrical arc-shaped locking rings to produce radial elastic expansion, so that the inner wall of the arc-shaped locking ring tightly holds the surface of the gear shaft, forming a keyless interference fit, realizing circumferential zero-backlash transmission, and completely eliminating the risk of circumferential sliding. At this time, the rear end surface of the arc-shaped locking ring is firmly abutted on the inner ring of the gear hub body, and the conical ring of the gear shaft facilitates the pushing of the gear shaft, ensuring the stability under high torque conditions.

[0018] The bolt passes through the inner hole and locking hole of the elastic gasket and is screwed in the screw hole, the bolt abuts on the elastic gasket, the elastic gasket abuts on the clamping strip of the gear hub body, and the elastic gasket is made of elastic wear-resistant rubber material.

[0019] With the above structure, the split gear ring assembly and the gear hub assembly are fastened by the bolt and the elastic gasket, which facilitates quick disassembly and assembly of the gear ring assembly, and facilitates quick replacement when the teeth of the gear ring assembly are broken or abnormally worn.

[0020] Compared with the prior art, the safety protection gear convenient to disassemble has the following advantages:

[0021] 1. The axial positioning is realized by the sliding embedding of the gear ring assembly and the gear hub assembly, and the circumferential fixing is realized by the bolt combined with the locking hole and the screw hole. When disassembly is needed, the gear ring assembly and the gear hub assembly can be separated by loosening the bolt, which is convenient for disassembly and maintenance, improves the maintenance efficiency, and reduces the maintenance cost.

[0022] 2. The radial expansion force is generated by the cooperation of the locking assembly and the gear shaft, the gear shaft and the locking assembly tightly hold the surface of the gear shaft, form a keyless interference connection, and realize circumferential zero-backlash transmission by cooperating with the multi-stage embedding structure, eliminate the risk of relative sliding, and ensure the stability and transmission accuracy of torque transmission.

[0023] 3. The turbulence fan on the rear side of the gear hub assembly can generate directional airflow when rotating synchronously with the gear, continuously blowing the surface of the gear ring assembly to form an air curtain, effectively preventing dust and impurities from entering the meshing area and the internal structure, improving the operation stability and reliability. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front side perspective structure schematic diagram of the present application.

[0025] Figure 2This is a schematic diagram of the rear three-dimensional structure of the present invention.

[0026] Figure 3 This is a schematic diagram of the rear three-dimensional structure of the gear hub assembly in this invention.

[0027] Figure 4 This is a schematic diagram of the front three-dimensional structure of the gear hub assembly in this invention.

[0028] Figure 5 This is a schematic diagram of the front three-dimensional structure of the gear ring assembly in this invention.

[0029] Figure 6 This is a three-dimensional structural diagram of the rear side of the gear ring assembly in this invention.

[0030] Figure 7 This is a schematic diagram of the locking component in this invention.

[0031] Figure 8 This is a schematic diagram of the gear shaft in this invention.

[0032] In the diagram, 1. Gear ring assembly; 2. Gear shaft; 3. Gear hub assembly; 4. Bolt; 5. Baffle fan; 6. Elastic washer; 7. Retaining ring; 8. Clearance hole; 9. Fan blade; 10. Gear hub body; 11. Engaging strip; 12. Locking hole; 13. Gear ring body; 14. Blocking circular plate; 15. Fixing hole; 16. Assembly groove; 17. Fitting groove one; 18. Screw hole; 19. Arc-shaped locking ring; 20. Fitting groove two; 21. Conical surface; 22. Fixing protrusion one; 23. Fitting protrusion; 24. Conical ring; 25. Fixing protrusion two. Detailed Implementation

[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0034] like Figures 1-8 As shown, this easy-to-disassemble safety gear includes a gear ring assembly 1 and a gear shaft 2. A gear hub assembly 3 is slidably fitted onto the gear ring assembly 1. The front end of the gear hub assembly 3 passes through the gear ring assembly 1, and several circumferentially distributed bolts 4 are provided on the outer front end of the gear hub assembly 3. Elastic washers 6 are provided between the bolts 4 and the gear hub assembly 3, and the bolts 4 are all screwed onto the outer front end of the gear ring assembly 1. A locking assembly is provided inside the gear hub assembly 3. The gear shaft 2 passes through the gear hub assembly 3, the locking assembly, and the gear ring assembly 1, and is fitted and abuts against the locking assembly. A turbulence fan 5 is provided on the rear side of the gear hub assembly 3.

[0035] In this embodiment, during installation, the gear hub assembly 3 is slidingly fitted inside the gear ring assembly 1, the front end of the gear hub assembly passes through the gear ring assembly 1, and the gear ring assembly 1 and the gear hub assembly 3 are firmly connected by a plurality of bolts 4, and an elastic gasket 6 is arranged between each bolt 4 and the gear hub assembly 3, which not only enhances the reliability of the connection, but also effectively absorbs vibration, relieves impact load, prolongs service life, and then places the locking assembly inside the gear hub assembly, so that the gear shaft 2 penetrates the gear hub assembly 3, the locking assembly and the gear ring assembly 1, and is fitted against the locking assembly, thereby realizing stable transmission of torque, the locking assembly plays a role of axial positioning and radial locking inside the gear hub assembly 3, ensuring that there is no relative sliding between the gear shaft 2 and the gear hub assembly 3, improving transmission accuracy and safety;

[0036] At the same time, a spoiler fan 5 is arranged at the rear side of the gear hub assembly 3, which can generate airflow when rotating synchronously with the gear, effectively preventing dust and impurities from entering the inside of the gear, reducing the meshing temperature when the gear is running, and improving the overall protection performance and running stability.

[0037] The gear hub assembly 3 comprises a gear hub body 10, the inside of the gear hub body 10 is hollow, the rear side of the gear hub body 10 is provided with a fixing ring 7, the middle position of the fixing ring 7 is provided with an avoiding hole 8 arranged along the front-rear axis, the avoiding hole 8 is communicated with the inside of the gear hub body 10, the outside of the fixing ring 7 is provided with a plurality of circumferentially distributed fan blades 9, the outside of the gear hub body 10 is provided with a plurality of circumferentially distributed clamping strips 11 arranged along the front-rear axis, the clamping strips 11 are in trapezoidal structure, the end of the clamping strips 11 extends out of the front side of the gear hub body 10, and the end of the clamping strips 11 is provided with a locking hole 12 arranged along the radial direction.

[0038] In this embodiment, the fixing ring 7 is used to fix a plurality of fan blades 9, when the gear hub body 10 rotates, the fan blades 9 disturb the airflow to form wind, and the wind blows on the gear ring assembly 1 to form a wind curtain effect, preventing dust from falling on the gear ring assembly 1 and preventing the friction between the gear ring assembly 1 and other gears from increasing, which causes abnormal wear and prolongs the service life, the gear hub body 10 is slidingly fitted on the gear ring assembly 1 through a plurality of clamping strips 11, the locking hole 12 is used to connect the gear hub body 10 and the gear ring assembly 1, and the clamping strips 11 are in trapezoidal structure to limit the gear hub body 10, preventing the gear hub body 10 from shaking inside the gear ring assembly 1.

[0039] The gear ring assembly 1 comprises a gear ring body 13, the front side of the gear ring body 13 is provided with a blocking disc 14, the inner ring of the gear ring body 13 and the outer side of the blocking disc 14 are both provided with a plurality of circumferentially distributed split grooves 16 arranged along the front-rear axial direction, and the split grooves 16 on the gear ring body 13 are communicated with the split grooves 16 of the blocking disc 14, the number and shape of the split grooves 16 are matched with the clamping strips 11, the length of the split grooves 16 is equal to the length of the clamping strips 11, the clamping strips 11 are clamped inside the split grooves 16 at the corresponding positions, the outer side of the blocking disc 14 is provided with a plurality of circumferentially distributed screw holes 18 arranged along the radial direction, the number and position of the screw holes 18 are matched with the split grooves 16, and when the clamping strips 11 are clamped inside the split grooves 16 at the corresponding positions, the screw holes 18 are communicated with the locking holes 12 at the corresponding positions, the central position of the blocking disc 14 is provided with a fixing hole 15 and a plurality of circumferentially distributed embedding grooves 17, and the plurality of embedding grooves 17 are located outside the fixing hole 15.

[0040] In the embodiment, during installation, the clamping strips 11 are all aligned with the split grooves 16 at the corresponding positions, the gear hub body 10 is pushed, the clamping strips 11 slide along the split grooves 16 at the corresponding positions, and the plurality of clamping strips 11 pass through the gear ring body 13 until the gear hub body 10 abuts against the blocking disc 14, after the pushing is completed, the front side end portions of the plurality of clamping strips 11 are flush with the front side end surface of the blocking disc 14, at this time, the screw holes 18 are communicated with the locking holes 12 at the corresponding positions, the blocking disc 14 is used for limiting the gear hub body 10, and the blocking disc 14 cooperates with the split grooves 16 to split the gear hub body 10 inside the gear ring body 13, thereby forming a split structure, when the teeth of the gear ring body 13 are broken or abnormally worn, the gear ring body 13 is convenient to quickly disassemble and replace, the fixing hole 15 is used for the gear shaft 2 to pass through, and the embedding grooves 17 are used for clamping the gear shaft 2.

[0041] The locking assembly comprises two symmetrically arranged arc-shaped locking rings 19, the inner ring of each arc-shaped locking ring 19 is provided with a tapered surface 21 with a large front side and a small rear side, and the inner ring of each arc-shaped locking ring 19 is provided with two embedding grooves 20.

[0042] In the embodiment, the two symmetrically arranged arc-shaped locking rings 19 cooperate with the gear shaft 2 through the tapered surfaces 21 on the inner rings of the arc-shaped locking rings 19, when the gear shaft 2 is inserted, the gear shaft 2 abuts against the tapered surfaces 21 of the arc-shaped locking rings 19, so that the two arc-shaped locking rings 19 are radially expanded, the arc-shaped locking rings 19 tightly embrace the surface of the gear shaft 2, form a keyless interference fit, realize radial locking and torque transmission, at the same time, the embedding grooves 20 of the inner rings of the arc-shaped locking rings 19 are embedded with the gear shaft 2, further prevent circumferential relative sliding, and ensure transmission accuracy, the symmetric design makes the locking force uniformly distributed, avoids partial load, and when disassembled, the embrace can be released by applying force in the reverse direction, thereby realizing quick maintenance.

[0043] The middle position of the gear shaft 2 is provided with the fixed protrusion two 25, the conical ring 24 and the fixed protrusion one 22 from back to front in turn, and a plurality of circumferentially distributed embedded protrusions 23 are arranged on the fixed protrusion two 25, the conical ring 24 and the fixed protrusion one 22, the shape of the embedded protrusions 23 is matched with the embedded groove two 20, the embedded protrusions 23 are clamped in the embedded groove two 20 of the two arc-shaped locking rings 19, and when the embedded protrusions 23 are embedded, the conical surface 21 abuts against the fixed protrusion one 22, and the two arc-shaped locking rings 19 abut against the inner ring of the gear hub body 10.

[0044] In the embodiment, when the gear shaft 2 is inserted into the locking assembly, the fixed protrusion two 25 and the conical ring 24 at the rear side of the gear shaft 2 contact the conical surface 21, and when the gear shaft 2 is inserted, the plurality of embedded protrusions 23 are embedded in the embedded groove two 20 of the two arc-shaped locking rings 19, the gear shaft 2 is continuously pushed to pass through the fixed hole 15, the gear shaft 2 is rotated to make the plurality of embedded protrusions 23 embedded in the corresponding embedded groove one 17, the gear shaft 2 is continuously pushed to make the conical surface 21 abut against the fixed protrusion one 22, the slope effect of the conical surface 21 forces the two symmetrical arc-shaped locking rings 19 to be radially elastically expanded, the inner wall of the arc-shaped locking ring 19 tightly clamps the surface of the gear shaft 2 to form a keyless interference fit, the circumferential zero-backlash transmission is realized, and the circumferential sliding risk is completely eliminated, at this time, the rear end surface of the arc-shaped locking ring 19 firmly abuts against the inner ring of the gear hub body 10, and the conical ring 24 of the gear shaft 2 facilitates the pushing of the gear shaft 2, and the stability under the high-torque working condition is ensured.

[0045] The bolt 4 passes through the inner hole of the elastic gasket 6 and the locking hole 12 and is screwed in the screw hole 18, the bolt 4 abuts against the elastic gasket 6, the elastic gasket 6 abuts against the clamping strip 11 of the gear hub body 10, and the elastic gasket 6 is made of elastic wear-resistant rubber material.

[0046] In the embodiment, the split gear ring assembly 1 and the gear hub assembly 3 are combined by the bolt 4 and the elastic gasket 6, the split gear ring assembly 1 is facilitated to be quickly disassembled, and the split gear ring assembly 1 is facilitated to be quickly replaced when the gear ring assembly 1 has a broken and abnormally worn tooth.

[0047] The working principle of the present application is as follows: when installing, align the clamping strips 11 with the corresponding split grooves 16, and push the gear hub body 10 so that the clamping strips 11 slide along the corresponding split grooves 16 and pass through the gear ring body 13 until the gear hub body 10 abuts against the blocking disc 14. After pushing, the front end of the clamping strips 11 is flush with the front end surface of the blocking disc 14. At this time, the screw holes 18 are in communication with the corresponding locking holes 12, and the gear ring assembly 1 and the gear hub assembly 3 are firmly connected by passing a plurality of bolts 4 through the elastic washers 6, the locking holes 12 and the screw holes 18 inside the corresponding screw holes 18, thereby enhancing the reliability of the connection, effectively absorbing vibration and relieving impact load, prolonging the service life, and then placing the locking assembly inside the gear hub assembly, so that the gear shaft 2 penetrates the gear hub assembly 3, the locking assembly and the gear ring assembly 1 and is embedded and abuts against the locking assembly. That is, the gear shaft 2 penetrates the gear hub assembly 3, the locking assembly and the gear ring assembly 1, the fixing protrusion two 25 at the rear of the gear shaft 2 and the conical surface 21 contact the conical surface 21. When inserting, the embedded protrusions 23 are embedded in the embedded grooves two 20 of the two arc-shaped locking rings 19. Continue to push the gear shaft 2 so that the gear shaft 2 passes through the fixing hole 15. Rotate the gear shaft 2 so that the embedded protrusions 23 are embedded in the corresponding embedded grooves one 17. Continue to push so that the conical surface 21 abuts against the fixing protrusion one 22. The slope effect of the conical surface 21 forces the two symmetrical arc-shaped locking rings 19 to expand radially, so that the inner wall of the arc-shaped locking ring 19 tightly holds the surface of the gear shaft 2, forming a keyless interference fit, achieving a circumferential zero-backlash transmission, and completely eliminating the risk of circumferential sliding. At this time, the rear end surface of the arc-shaped locking ring 19 firmly abuts against the inner ring of the gear hub body 10, thereby realizing stable transmission of torque. The locking assembly plays a role in axial positioning and radial locking in the gear hub assembly 3, ensuring that there is no relative sliding between the gear shaft 2 and the gear hub assembly 3, improving transmission accuracy and safety.

[0048] At the same time, when the gear hub body 10 rotates, the fan blades 9 disturb the airflow to form wind, which blows on the gear ring assembly 1, forming a wind curtain effect, preventing dust and impurities from falling on the gear ring assembly 1, increasing the friction between the gear ring assembly 1 and other gears, causing abnormal wear, prolonging the use time, improving the overall protection performance and operation stability, and reducing the meshing temperature of the gear during operation.

[0049] In summary, the gear ring assembly 1 and the gear hub assembly 3 are axially positioned by sliding and embedding, and are circumferentially fixed by the bolts 4 combined with the locking holes 12 and the screw holes 18. When disassembling, the gear ring assembly 1 and the gear hub assembly 3 can be separated by loosening the bolts 4, which is convenient for disassembly and repair, improves the maintenance efficiency and reduces the maintenance cost.

[0050] By cooperating with the locking assembly and the gear shaft 2, the gear shaft 2 cooperates with the locking assembly to generate a radial expansion force, tightly holds the surface of the gear shaft 2, forms a keyless interference connection, and cooperates with a multi-stage embedded structure to realize a circumferential zero-backlash transmission, eliminate the risk of relative sliding, and ensure the stability of torque transmission and transmission accuracy;

[0051] By the spoiler fan 5 at the rear side of the gear hub assembly 3, directional airflow can be generated when rotating synchronously with the gear, continuously blowing the surface of the gear ring assembly 1, forming a wind curtain, effectively preventing dust and impurities from entering the meshing area and the internal structure, and improving the operation stability and reliability.

[0052] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A safety gear that is easy to assemble and disassemble, comprising a gear ring assembly (1) and a gear shaft (2), characterized in that, The gear hub assembly (3) is slidably fitted onto the gear ring assembly (1). The front end of the gear hub assembly (3) passes through the gear ring assembly (1), and the outer front end of the gear hub assembly (3) is provided with several circumferentially distributed bolts (4). There are elastic washers (6) between the bolts (4) and the gear hub assembly (3), and the bolts (4) are all screwed onto the outer front end of the gear ring assembly (1). The gear hub assembly (3) is provided with a locking assembly inside. The gear shaft (2) passes through the gear hub assembly (3), the locking assembly and the gear ring assembly (1), and is fitted and abuts against the locking assembly. The rear side of the gear hub assembly (3) is provided with a turbulence fan (5).

2. The safety protective gear that is easy to disassemble and assemble according to claim 1, characterized in that, The gear hub assembly (3) includes a gear hub body (10), which is hollow inside. A fixing ring (7) is provided on the rear side of the gear hub body (10). An avoidance hole (8) is provided in the middle position of the fixing ring (7) along the front and rear axial direction. The avoidance hole (8) is connected to the inside of the gear hub body (10). Several fan blades (9) are evenly distributed on the outer side of the fixing ring (7).

3. The safety protective gear that is easy to disassemble and assemble according to claim 2, characterized in that, The gear hub body (10) has several circumferentially distributed locking strips (11) arranged along the front and rear axial directions. The locking strips (11) have a trapezoidal structure, and the ends of the locking strips (11) extend out of the front end face of the gear hub body (10). The ends of the locking strips (11) are all provided with locking holes (12) arranged in the radial direction.

4. The safety protective gear that is easy to disassemble and assemble according to claim 3, characterized in that, The gear ring assembly (1) includes a gear ring body (13). A blocking circular plate (14) is provided on the front side of the gear ring body (13). A number of circumferentially distributed splicing grooves (16) arranged along the front and rear axial directions are provided on the inner ring of the gear ring body (13) and the outer side of the blocking circular plate (14). The splicing grooves (16) on the gear ring body (13) are connected to the splicing grooves (16) of the blocking circular plate (14). The number and shape of the splicing grooves (16) match the locking strip (11). The length of the splicing groove (16) is equal to the length of the locking strip (11). The locking strip (11) is locked inside the splicing groove (16) at the corresponding position. The outer side of the blocking circular plate (14) is provided with a number of radially arranged screw holes (18) evenly distributed around the circumference. The number and position of the screw holes (18) match the splicing groove (16). When the locking strip (11) is locked inside the splicing groove (16) at the corresponding position, the screw holes (18) are connected to the locking holes (12) at the corresponding position.

5. A safety protective gear that is easy to disassemble and assemble according to claim 4, characterized in that, The center of the blocking circular plate (14) is provided with a fixing hole (15) and several circumferentially distributed fitting grooves (17), with the fitting grooves (17) located outside the fixing hole (15).

6. A safety protective gear that is easy to disassemble and assemble according to claim 5, characterized in that, The locking assembly includes two symmetrically arranged arc-shaped locking rings (19). The inner ring of the arc-shaped locking ring (19) has a tapered surface (21) that is larger in the front and smaller in the back. The inner ring of the arc-shaped locking ring (19) has two fitting grooves (20).

7. A safety protective gear that is easy to disassemble and assemble according to claim 6, characterized in that, The gear shaft (2) is provided with a fixed protrusion two (25), a conical ring (24) and a fixed protrusion one (22) in the middle position from back to front. The fixed protrusion two (25), the conical ring (24) and the fixed protrusion one (22) are provided with a number of circumferentially distributed fitting protrusions (23). The shape of the fitting protrusions (23) matches the fitting groove two (20). The fitting protrusions (23) are engaged in the fitting groove two (20) of the two arc-shaped locking rings (19). When engaged, the conical surface (21) abuts against the fixed protrusion one (22), and the two arc-shaped locking rings (19) abut against the inner ring of the gear hub body (10).

8. A safety protective gear that is easy to disassemble and assemble according to claim 7, characterized in that, The bolt (4) passes through the inner hole and locking hole (12) of the elastic washer (6) and is screwed into the screw hole (18). The bolt (4) abuts against the elastic washer (6), and the elastic washer (6) abuts against the locking strip (11) of the gear hub body (10). The elastic washer (6) is made of elastic wear-resistant rubber material.

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