High-strength spiral bevel gear

Abstract

The utility model relates to the technical field of automobile rear axle gears, and provides a high-strength spiral bevel gear which comprises a gear body and a thickening layer, the thickening layer is arranged outside the gear body, a center shaft is connected in the gear body in a sleeved mode, a fastening connecting assembly is arranged outside the center shaft and the gear body, and a fixing layer is fixed outside the center shaft. The filling supporting assembly is arranged between the thickening layer and the fixing layer and comprises an outer ring groove, the outer ring groove is formed in the surface of the thickening layer, a plurality of filling grooves are formed in the inner surface of the outer ring groove, and the center shaft is sleeved with a supporting layer in a connected mode. By means of the technical scheme, the problems that in the prior art, a common automobile rear axle driven spiral bevel gear is annular, a cavity is formed in the middle, in the transmission process, the middle cavity of the spiral bevel gear is supported only through a connected rotating shaft, the compressive strength is not high enough, and a gear body is prone to being broken are solved; other transmission structures can be seriously damaged after breakage and collapse, and potential safety hazards exist.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile rear axle gears, and in particular to a high-strength spiral bevel gear. Background Art

[0002] The rear axle of a car refers to the drive axle between the wheels at the rear of the car. Gear transmission is essential in the driving process. Gear transmission is divided into active gears and passive gears. The gear commonly used in the rear axle of a car is the spiral bevel gear.

[0003] Generally, the shortcomings of the passive spiral bevel gears on the rear axle of a car are that the driven spiral bevel gears on the rear axle of a car are generally ring-shaped, with a cavity in the middle. In this way, during the transmission process, the middle cavity of the spiral bevel gear is only supported by the connected rotating shaft, and the compressive strength is not high enough, which can easily lead to the breakage of the gear body. After the breakage, it will seriously damage other transmission structures, posing a safety hazard.

[0004] Therefore, improvements are made to address the above problems. Utility Model Content

[0005] The utility model proposes a high-strength spiral bevel gear, which solves the problem in the related art that the driven spiral bevel gears of general automobile rear axles are all annular and have a cavity in the middle. In this way, during the transmission process, the middle cavity of the spiral bevel gear is only supported by the connected rotating shaft, and the compressive strength is not high enough, which can easily lead to the situation that the gear body breaks. After the breakage, it will seriously damage other transmission structures, posing a safety hazard.

[0006] The technical solution of the utility model is as follows:

[0007] A gear body and a thickened layer, wherein the thickened layer is arranged outside the gear body;

[0008] A central shaft, the central shaft being sleeved and connected in the gear body;

[0009] A fastening connection assembly, the fastening connection assembly is arranged outside the central shaft and the gear body;

[0010] A fixed layer, the fixed layer being fixed outside the central axis;

[0011] A filling support assembly is arranged between the thickening layer and the fixed layer, and the filling support assembly includes an outer ring groove, which is opened on the surface of the thickening layer, and a plurality of filling grooves are opened on the inner surface of the outer ring groove. A support layer is sleeved and connected to the outside of the central axis, and a plurality of filling plates are arranged on the surface of the support layer, and the filling plates are plugged and connected in the filling grooves.

[0012] As a further technical solution, the fixed layer is rotatably connected to a rotating seat on the outside, a plurality of threaded holes are provided on the surface of the rotating seat, a supporting screw is screwed into the threaded hole, a plurality of sleeves are provided on the surface of the supporting layer, one end of the supporting screw is rotatably connected to a docking block, and the docking block is inserted and connected in the sleeve.

[0013] As a further technical solution, the fastening connection assembly includes an installation groove, which is opened at one end of the central axis. A threaded groove is opened in the installation groove, and an insert block is inserted in the installation groove. A clamping plate is fixedly connected to the upper end of the insert block.

[0014] As a further technical solution, a plurality of slide grooves are provided on the surface of the clamping plate and the two opposite surfaces of the gear body, a plurality of ball bearings are arranged in the slide grooves, through holes are provided in the clamping plate and the plug block, connecting bolts are inserted and connected in the through holes, and the connecting bolts are screwed and connected in the threaded grooves.

[0015] As a further technical solution, the cross-sections of the mounting groove and the plug block are both hexagonal or polygonal structures.

[0016] As a further technical solution, a dust cover is sleeved and connected to the fixed layer and the outside of the central axis.

[0017] As a further technical solution, the connecting bolt is connected to the thread groove and then fixedly connected to the clamping plate by welding.

[0018] As a further technical solution, the cross section of the connection between the fixing layer and the supporting layer is a stepped structure.

[0019] The working principle and beneficial effects of the utility model are:

[0020] 1. The utility model is provided with a filling support assembly. Through the interaction of structures such as a filling groove, a filling plate, a rotating seat, a supporting screw and a supporting block, the gear body is connected to the rotating seat and the supporting layer at a high speed through transmission, thereby improving the stability of the gear body during rotation. Moreover, through the structural supplement of the filling groove and the filling plate, the gear body has a good anti-fracture effect, thereby effectively improving the service life of the gear body.

[0021] 2. The utility model is provided with a fastening connection assembly, through the interaction of structures such as the mounting groove, the threaded groove, the clamping plate and the connecting bolt, the gear body can be more firmly connected to the central axis, and there will be no deviation during the rotation process, thereby improving the stability of the gear body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is an axonometric sectional view of the utility model;

[0025] Figure 3 This is an axonometric cross-sectional view from another viewing angle of the present invention;

[0026] Figure 4 This is another axonometric cross-sectional view of the utility model from another viewing angle;

[0027] Figure 5 It is a cross-sectional view of the utility model;

[0028] In the figure: 1. gear body; 2. thickening layer; 3. center axis; 4. fixing layer; 5. filling support assembly; 5-1. outer ring groove; 5-2. filling groove; 5-3. support layer; 5-4. filling plate; 5-5. rotating seat; 5-6. threaded hole; 5-7. support screw; 5-8. sleeve layer; 5-9. docking block; 6. fastening connection assembly; 6-1. mounting groove; 6-2. threaded groove; 6-3. plug-in block; 6-4. clamping plate; 6-5. slide groove; 6-6. ball; 6-7. through hole; 6-8. connecting bolt; 7. dust cover. DETAILED DESCRIPTION

[0029] The following will be combined with 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 of 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.

[0030] like Figure 1~Figure 5 As shown, this embodiment proposes a high-strength spiral bevel gear, including

[0031] A gear body 1 and a thickened layer 2, wherein the thickened layer 2 is arranged outside the gear body 1;

[0032] A central shaft 3, wherein the central shaft 3 is sleeved and connected inside the gear body 1;

[0033] A fastening connection component 6, wherein the fastening connection component 6 is arranged outside the central shaft 3 and the gear body 1;

[0034] A fixed layer 4, wherein the fixed layer 4 is fixed outside the central axis 3;

[0035] A filling support assembly 5 is arranged between the thickening layer 2 and the fixing layer 4, and the filling support assembly 5 includes an outer annular groove 5-1, and the outer annular groove 5-1 is opened on the surface of the thickening layer 2, and a plurality of filling grooves 5-2 are opened on the inner surface of the outer annular groove 5-1, and a supporting layer 5-3 is sleeved and connected to the outside of the central axis 3, and a plurality of filling plates 5-4 are arranged on the surface of the supporting layer 5-3, and the filling plates 5-4 are plugged and connected in the filling grooves 5-2, and a rotating seat 5-5 is rotatably connected to the outside of the fixing layer 4, and a plurality of threaded holes 5-6 are opened on the surface of the rotating seat 5-5, and a supporting screw 5-7 is screwed and connected in the threaded hole 5-6, and a plurality of sleeve layers 5-8 are arranged on the surface of the supporting layer 5-3, and one end of the supporting screw 5-7 is rotatably connected to a docking block 5-9, and the docking block 5-9 is plugged and connected in the sleeve layer 5-8.

[0036] In this embodiment, in order to achieve the reinforcement filling effect of the main wheel body, a filling support assembly 5 is designed, a fixing layer 4 is fixed on the central shaft 3, a rotatable rotating seat 5-5 is arranged outside the fixing layer 4, a plurality of threaded holes 5-6 are opened on the surface of the rotating seat 5-5, a support screw 5-7 is screwed in the threaded hole 5-6, an outer ring groove 5-1 is opened on the surface of the thickened layer 2 on the back of the gear body 1, a plurality of filling grooves 5-2 are evenly distributed in an annular shape on the surface of the outer ring groove 5-1, and the central shaft 3 is provided with a plurality of filling grooves 5-2 on the surface of the outer ring groove 5-1. The outer sleeve is connected with a movable supporting layer 5-3, and a filling plate 5-4 is arranged on the surface of the supporting layer 5-3. The filling plate 5-4 is inserted into the filling groove 5-2, so that the connection between the gear body 1 and the central axis 3 is fixed to the supporting layer 5-3 at the same time. A docking block 5-9 is arranged at one end of the supporting screw 5-7, and the docking block 5-9 is plug-connected with the sleeve layer 5-8 on the surface of the supporting layer 5-3. When the gear body 1 rotates, the supporting layer 5-3 and the rotating seat 5-5 rotate synchronously, thereby improving the stability of the gear body 1.

[0037] Furthermore, the fastening connection component 6 includes a mounting groove 6-1, the mounting groove 6-1 is opened at one end of the central axis 3, a threaded groove 6-2 is opened in the mounting groove 6-1, an insert block 6-3 is inserted and connected in the mounting groove 6-1, a clamping plate 6-4 is fixedly connected to the upper end of the insert block 6-3, a plurality of slide grooves 6-5 are opened on the surface of the clamping plate 6-4 and the two surfaces opposite to the gear body 1, a plurality of ball bearings 6-6 are arranged in the slide groove 6-5, a through hole 6-7 is opened in the clamping plate 6-4 and the insert block 6-3, a connecting bolt 6-8 is inserted and connected in the through hole 6-7, and the connecting bolt 6-8 is screwed and connected in the threaded groove 6-2.

[0038] In this embodiment, in order to achieve a stable installation of the gear body 1 on the central shaft 3 and a tightening effect, a fastening connection component 6 is designed. A mounting groove 6-1 is opened at one end of the central shaft 3, and a threaded groove 6-2 is opened inside. A clamping plate 6-4 and an insert block 6-3 are inserted and connected in the mounting groove 6-1. The insert block 6-3 is tightly connected to the mounting groove 6-1 and is opened with a through hole 6-7. A connecting bolt 6-8 is inserted and connected in the through hole 6-7 and is screwed to the threaded groove 6-2. The surface of the clamping plate 6-4 and the surface of the gear body 1 are both provided with a slide groove 6-5 and filled with balls 6-6. While not affecting the gear body 1, it can also reinforce the gear body 1 and improve the stability during operation.

[0039] Furthermore, the cross-sections of the installation groove 6-1 and the insert block 6-3 are both hexagonal or polygonal structures.

[0040] In this embodiment, the insert block 6 - 3 is fixedly connected to the mounting groove 6 - 1 through a polygonal structure, so that stable coaxial transmission can be performed.

[0041] Furthermore, a dust cover 7 is sleeved and connected to the fixing layer 4 and the exterior of the central shaft 3 .

[0042] In this embodiment, by installing the dust cover 7, all transmission parts are completely wrapped inside to prevent the transmission effect from being affected by dust.

[0043] Furthermore, the connecting bolt 6-8 is connected to the thread groove 6-2 and fixedly connected to the clamping plate 6-4 by welding.

[0044] In this embodiment, the connecting bolts 6-8 are fixed to the clamping plate 6-4 by welding to avoid the connecting bolts 6-8 from loosening during high-speed rotation.

[0045] Furthermore, the cross section of the connection between the fixing layer 4 and the supporting layer 5 - 3 is a stepped structure.

[0046] In this embodiment, the stepped structure makes the rotation between the fixed layer 4 and the supporting layer 5 - 3 more firm and stable.

[0047] When installation is required, the support layer 5-3 is inserted into the central axis 3, and then the gear body 1 is installed. The support screw 5-7 is turned to make the docking block 5-9 push the support layer 5-3 in the sleeve layer 5-8, so that the filling plate 5-4 is inserted into the filling groove 5-2, and then the clamping plate 6-4 is inserted into the installation groove 6-1 through the insert block 6-3, and then the connecting bolt 6-8 is screwed through the through hole 6-7 and connected to the threaded groove 6-2 for fixation. Finally, the dust cover 7 is put on and it can be used. When the gear body 1 rotates during transmission, it rotates on the central axis 3. At the same time, the support layer 5-3 cooperates with the rotating seat 5-5 to rotate synchronously with it, thereby improving the stability of the gear body 1.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-strength spiral bevel gear, characterized in that: include A gear body (1) and a thickened layer (2), wherein the thickened layer (2) is arranged outside the gear body (1); A central shaft (3), wherein the central shaft (3) is sleeved and connected inside the gear body (1); A fastening connection component (6), wherein the fastening connection component (6) is arranged outside the central shaft (3) and the gear body (1); A fixed layer (4), wherein the fixed layer (4) is fixed outside the central axis (3); A filling support assembly (5), wherein the filling support assembly (5) is arranged between the thickening layer (2) and the fixing layer (4), wherein the filling support assembly (5) comprises an outer ring groove (5-1), wherein the outer ring groove (5-1) is opened on the surface of the thickening layer (2), wherein the inner surface of the outer ring groove (5-1) is opened with a plurality of filling grooves (5-2), wherein the outer portion of the central axis (3) is sleevedly connected with a support layer (5-3), wherein the surface of the support layer (5-3) is provided with a plurality of filling plates (5-4), wherein the filling plates (5-4) are plug-connected in the filling grooves (5-2).

2. A high-strength spiral bevel gear according to claim 1, characterized in that: The fixed layer (4) is rotatably connected to a rotating seat (5-5) on the outside, a plurality of threaded holes (5-6) are provided on the surface of the rotating seat (5-5), a support screw (5-7) is screwed in the threaded hole (5-6), a plurality of sleeves (5-8) are provided on the surface of the support layer (5-3), one end of the support screw (5-7) is rotatably connected to a docking block (5-9), and the docking block (5-9) is plugged and connected in the sleeve (5-8).

3. A high-strength spiral bevel gear according to claim 1, characterized in that: The fastening connection assembly (6) comprises a mounting groove (6-1), the mounting groove (6-1) being provided at one end of the central axis (3), a threaded groove (6-2) being provided in the mounting groove (6-1), an insert block (6-3) being inserted and connected in the mounting groove (6-1), and a clamping plate (6-4) being fixedly connected to the upper end of the insert block (6-3).

4. A high-strength spiral bevel gear according to claim 3, characterized in that: The surfaces of the clamping plate (6-4) and the gear body (1) are both provided with a plurality of slide grooves (6-5), and a plurality of balls (6-6) are arranged in the slide grooves (6-5). The clamping plate (6-4) and the insert block (6-3) are provided with through holes (6-7), and connecting bolts (6-8) are inserted and connected in the through holes (6-7), and the connecting bolts (6-8) are screwed and connected in the threaded grooves (6-2).

5. The high-strength spiral bevel gear according to claim 3, characterized in that: The cross sections of the installation groove (6-1) and the insert block (6-3) are both hexagonal or polygonal structures.

6. The high-strength spiral bevel gear according to claim 1, characterized in that: The fixing layer (4) and the central shaft (3) are externally sleeved with a dust cover (7).

7. The high-strength spiral bevel gear according to claim 4, characterized in that: The connecting bolt (6-8) is connected to the thread groove (6-2) and then fixedly connected to the pressing plate (6-4) by welding.

8. The high-strength spiral bevel gear according to claim 1, characterized in that: The cross section of the connection between the fixing layer (4) and the supporting layer (5-3) is in a stepped structure.

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