Bevel gear

Abstract

The invention belongs to the technical field of gears, and particularly relates to a bevel gear which comprises a main body, tooth roots and first teeth, the main body comprises a connecting end and a tooth end, the tooth roots are circumferentially arranged at the tooth end at equal intervals and are provided with mounting grooves, and the first teeth are mounted in the mounting grooves; meanwhile, a swing structure is arranged in the mounting groove, and the swing structure comprises a fulcrum; one end of the first tooth is limited in the mounting groove, so that the first tooth can float along the fulcrum in a balanced manner; the first teeth on the bevel gears are movably arranged in the mounting grooves of the tooth roots, and the first teeth can float in a balanced mode along the supporting points through the supporting points of the swing structures, that is, when small angular deviation exists in the axial direction of the two bevel gears, seesaw type floating is conducted through the two ends of the first teeth, and therefore the two bevel gears can float in a balanced mode. And the tooth angles of the two bevel gears are adjusted, so that the two bevel gears are completely meshed, and the matching effect between the two bevel gears is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of gears, and particularly relates to a bevel gear. Background Art

[0002] Bevel gears are also known as mitre gears, which are mainly used for gear transmission between intersecting shafts. Taking bevel gears with straight teeth as an example, after two bevel gears are engaged, there is usually a deviation in the axial angle between the two bevel gears, resulting in incomplete engagement of the teeth of the two bevel gears, which easily affects the meshing effect of the two bevel gears. In actual use, even after the two bevel gears are installed with high precision, due to the influence of the machining precision and installation precision of the bevel gears, the axes of the two bevel gears are not completely perpendicular or at the set angle, and there are usually small deviations, which need to be improved. Summary of the Invention

[0003] The purpose of the present invention is to provide a bevel gear for the above-mentioned existing technical problems, achieving the effect of being able to make up for the small angular deviation when the axes of the two bevel gears are matched due to the machining precision and installation precision of the bevel gears.

[0004] In view of this, the present invention provides a bevel gear, including: A main body, including a connection end and a tooth end; Tooth roots, circumferentially and equidistantly arranged at the tooth end, and provided with installation grooves; First teeth, installed in the installation grooves; A swing structure, arranged in the installation groove and including a fulcrum; Wherein, one end of the first tooth is restricted in the installation groove, enabling the first tooth to balance and float along the fulcrum.

[0005] In the above technical solution, further: Slot holes are provided on the inner walls on both sides of the installation groove, and one end of the first tooth located in the installation groove extends towards both sides of the slot hole to form first protrusions; Wherein, along the radial direction of the main body, an elastic pad is provided between the inner wall of the installation groove and the first tooth, and an elastic strip is provided between the first protrusion and the inner wall of the slot hole, and is used for the reset of the first tooth after balancing and floating along the fulcrum.

[0006] In the above technical solution, further: A first gap is left between the elastic strip and the first tooth and the inner wall of the slot hole, and a second gap is left between the elastic pad and the inner wall of the slot hole; Wherein, the elastic pad is bonded between the inner wall of the installation groove and the first tooth by a vulcanization process, and the elastic strip is bonded between the first protrusion and the inner wall of the slot hole by a vulcanization process.

[0007] In the above technical solution, further: The inner wall on the side of the slot hole away from the main body axis is inclined. Among them, after being squeezed by the first protrusion, the elastic strip can protrude into the first gap, and after protruding, the elastic strip abuts against the surface of the first tooth.

[0008] In the above technical solution, further, the fulcrum includes: A support seat, installed at the midpoint of the installation groove and correspondingly arranged with the midpoint of the first tooth; A rotating member, installed on the support seat and cooperatively connected with the midpoint of the first tooth; Among them, both ends of the rotating member are rotatably connected to the support seat.

[0009] In the above technical solution, further, the rotating member includes: A rotating shaft, installed inside the support seat and rotatably connected to the support seat at both ends; A gear, sleeved on the rotating shaft and extending out of the support seat at the top; Among them, on the surface of the first tooth close to the gear, there is a second tooth that meshes with the gear, and a third gap is formed between the two radial sides of the gear and the elastic pad, and a strip-shaped groove adapted to the second tooth is formed on the surface of the elastic pad adhesively connected to the first tooth.

[0010] In the above technical solution, further: A first embedding groove adapted to the support seat is opened in the installation groove, and a second embedding groove adapted to the support seat is opened on the inner wall of the slot hole.

[0011] In the above technical solution, further: On the surface of the first tooth located outside the installation groove, there is a second protrusion, and along the main body axis, the surface of the second protrusion is flush with the surface of the tooth root; Among them, a fourth gap allowing the first tooth to balance and float along the fulcrum is formed between the second protrusion and the tooth root.

[0012] In the above technical solution, further: The angle range for the first tooth to balance and float along the fulcrum is 0 - 1°.

[0013] In the above technical solution, further: A spline hole is axially opened in the main body.

[0014] The beneficial effects of the present invention are: 1. The first tooth of the bevel gear is movably arranged in the mounting groove of the tooth root, and the first tooth can perform balanced floating along the fulcrum through the fulcrum of the swinging structure. That is to say, when there is a small angular deviation in the axial direction of the two bevel gears, the first tooth floats in a seesaw manner at both ends to adjust the tooth angles on the two bevel gears, so that the two bevel gears are fully meshed, improving the matching effect between the two bevel gears; 2. Through the arrangement of the slot hole and the first protrusion on the first tooth, the first tooth can be effectively limited, preventing the first tooth from detaching from the tooth root. Through the arrangement of the elastic strip and the elastic pad, and bonding connection through the vulcanization process, the first tooth is effectively restricted, enabling the first tooth to only perform balanced floating along the fulcrum, improving the stability of the first tooth; 3. By adopting the arrangement of the rotating part and the support, the flexibility of the first tooth floating in a seesaw manner through the fulcrum is improved, preventing friction between the first tooth and the fulcrum from affecting the floating of the first tooth; 4. By setting the rotating part as a gear and a rotating shaft, and opening a second tooth on the first tooth that meshes with the gear, the convenience of installing the first tooth into the mounting groove can be improved, and at the same time, the stability of the first tooth during floating can be improved. Description of the Drawings

[0015] Figure 1 is the structural schematic diagram of the present invention; Figure 2 is the present invention Figure 1 the enlarged view of part A in; Figure 3 is the front view of the present invention; Figure 4 is the present invention Figure 3 the cross-sectional view taken along B-B in; Figure 5 is the present invention Figure 4 the enlarged view of part C in; Figure 6 is the exploded view of the first tooth part of the present invention; Figure 7 is the present invention Figure 6 the enlarged view of part D in; The reference signs in the drawings are represented as: 1, main body; 100, connection end; 101, tooth end; 102, spline hole; 2, tooth root; 20, mounting groove; 21, slot hole; 22, first embedding groove; 23, second embedding groove; 3, first tooth; 30, first protrusion; 31, second tooth; 32, second protrusion; 4, fulcrum; 40, support; 41, rotating part; 410, rotating shaft; 411, gear; 5, elastic pad; 50, strip-shaped groove; 6, elastic strip; 7, first gap; 8, second gap; 9, third gap; 10, fourth gap. Specific Embodiments

[0016] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0017] Embodiment 1: This embodiment provides a bevel gear, including: A main body 1, including a connection end 100 and a tooth end 101; Tooth roots 2, circumferentially arranged at equal intervals on the tooth end 101, and provided with mounting grooves 20; A first tooth 3, installed in the mounting groove 20; A swing structure, arranged in the mounting groove 20 and including a fulcrum 4; Wherein, one end of the first tooth 3 is restricted within the mounting groove 20, such that the first tooth 3 can only balance and float along the fulcrum 4; Meanwhile, an integral structure is adopted between the connection end 100 and the tooth roots 2.

[0018] It can be seen from this embodiment that by restricting one end of the first tooth 3 on the bevel gear within the mounting groove 20 of the tooth roots 2, and enabling the first tooth 3 to only balance and float along the fulcrum 4 through the fulcrum 4 of the swing structure, that is to say, when there is a small angular deviation in the axial direction between two bevel gears, the tooth angles on the two bevel gears are adjusted through the seesaw-like floating at both ends of the first tooth 3, so as to achieve complete meshing between the two bevel gears and improve the matching effect between the two bevel gears.

[0019] Embodiment 2: This embodiment provides a bevel gear, which, in addition to including the technical solutions of the above embodiment, further has the following technical features: Slot holes 21 are provided on the inner walls on both sides of the mounting groove 20, and the first tooth 3 extends towards both sides of the slot holes 21 at one end located in the mounting groove 20 to form first protrusions 30; Wherein, along the radial direction of the main body 1, an elastic pad 5 is provided between the inner wall of the mounting groove 20 and the first tooth 3, and an elastic strip 6 is provided between the inner wall of the first protrusion 30 and the slot hole 21, and is used for the reset of the first tooth 3 after balancing and floating along the fulcrum 4; Meanwhile, the elastic strip 6 and the elastic pad 5 can be made of rubber material.

[0020] It can be seen from this embodiment that through the arrangement of the slot hole 21 and the first protrusion 30 on the first tooth 3, the first tooth 3 can be effectively limited, preventing the first tooth 3 from detaching from the tooth root 2. Through the arrangement of the elastic strip 6 and the elastic pad 5, a buffering effect is achieved on the seesaw-like balanced floating of the first tooth 3, avoiding hard collisions, ensuring the stability of the floating, and improving the stability of the floating of the first tooth 3. And being respectively arranged on both sides of the first protrusion 30 can prevent the first tooth 3 from floating due to its own gravity, further ensuring stability.

[0021] Embodiment 3: This embodiment provides a bevel gear. In addition to including the technical solutions of the above embodiments, it also has the following technical features: A first gap 7 is left between the elastic strip 6, the first tooth 3, and the inner wall of the slot hole 21, and a second gap 8 is left between the elastic pad 5 and the inner wall of the slot hole 21; Among them, the elastic pad 5 is adhesively bonded between the inner wall of the installation groove 20 and the first tooth 3 by vulcanization process, and the elastic strip 6 is adhesively bonded between the first protrusion 30 and the inner wall of the slot hole 21 by vulcanization process.

[0022] It can be seen from this embodiment that through the vulcanization process, adhesive connection can be carried out, thereby effectively restricting the first tooth 3, making the first tooth 3 only able to perform balanced floating along the fulcrum 4. At the same time, the settings of the first gap 7 and the second gap 8 can prevent the elastic pad 5 and the elastic strip 6 from being adhesively bonded only to the surfaces along the floating direction of the first tooth 3 with the inner wall of the installation groove 20, the inner wall of the slot hole 21, and the surface of the first tooth 3 after vulcanization, avoiding affecting the seesaw-like balanced floating of the first tooth 3.

[0023] Embodiment 4: This embodiment provides a bevel gear. In addition to including the technical solutions of the above embodiments, it also has the following technical features: The inner wall of the slot hole 21 on the side away from the axis of the main body 1 is inclined; Among them, after the elastic strip 6 is extruded by the first protrusion 30, it can protrude into the first gap 7, and after protruding, the elastic strip 6 abuts against the surface of the first tooth 3.

[0024] It can be seen from this embodiment that by arranging the inner wall of the slot hole 21 on the side away from the axis of the main body 1 to be inclined, the elastic strip 6 can more easily protrude from the first gap 7 after being extruded by the first protrusion 30, so as to effectively abut against the surface of the first tooth 3, and then delay and hinder the reset of the first tooth 3 to a certain extent. When the bevel gear is in use, the first tooth 3 will not frequently perform seesaw-like balanced floating, improving the stability of the first tooth 3 and ensuring the stability of the bevel gear transmission.

[0025] Embodiment 5: This embodiment provides a bevel gear. In addition to the technical solutions of the above embodiments, it also has the following technical features. The fulcrum 4 includes: A support 40, installed at the midpoint of the installation groove 20 and correspondingly arranged with the midpoint of the first tooth 3; A rotating member 41, installed on the support 40 and cooperatively connected with the midpoint of the first tooth 3; Wherein, both ends of the rotating member 41 are rotatably connected to the support 40.

[0026] It can be seen from this embodiment that by adopting the arrangement of the rotating member 41 and the support 40, the flexibility of the first tooth 3 during the seesaw-like floating through the fulcrum 4 is improved, and the friction between the first tooth 3 and the fulcrum 4 is avoided, which may affect the floating of the first tooth 3.

[0027] Embodiment 6: This embodiment provides a bevel gear. In addition to the technical solutions of the above embodiments, it also has the following technical features. The rotating member 41 includes: A rotating shaft 410, installed inside the support 40 and rotatably connected to the support 40 at both ends; A gear 411, sleeved on the rotating shaft 410 and extending out of the support 40 at the top; Wherein, on one side of the first tooth 3 close to the gear 411, there is a second tooth 31 meshing with the gear 411. A third gap 9 is formed between the two radial sides of the gear 411 and the elastic pad 5, and a strip-shaped groove 50 adapted to the second tooth 31 is formed on the surface of the elastic pad 5 adhesively connected to the first tooth 3; At the same time, an interference fit is adopted between the gear 411 and the rotating shaft 410, and the axial dimension of the gear 411 is the same as or slightly smaller than the spacing dimension between the inner walls on both sides of the installation groove 20, which can improve the meshing effect between the second tooth 31 and the gear 411 and improve the stability; Moreover, for the formation of the strip-shaped groove 50, before vulcanization after the installation of the elastic pad 5, the first tooth 3 and the elastic strip 6, the elastic pad 5 is in a compressed state, that is, it is ensured that the second tooth 31 can be embedded in the elastic pad 5 to form the strip-shaped groove 50 during vulcanization.

[0028] It can be seen from this embodiment that by arranging the rotating member 41 with the gear 411 and the rotating shaft 410 and providing the second tooth 31 meshing with the gear 411 on the first tooth 3, the convenience of installing the first tooth 3 into the installation groove 20 can be improved, and at the same time, the stability of the first tooth 3 during floating can be improved; And the formation of the second tooth 31 can improve the connection strength between the elastic pad 5 and the first tooth 3 and further improve the stability.

[0029] Embodiment 7: This embodiment provides a bevel gear. In addition to including the technical solutions of the above embodiments, it also has the following technical features: A first embedding groove 22 adapted to the support 40 is provided in the mounting groove 20, and a second embedding groove 23 adapted to the support 40 is provided on the inner wall of the slot hole 21; Wherein, an interference fit is adopted between the support 40 and the first embedding groove 22 and the second embedding groove 23.

[0030] It can be seen from this embodiment that through the settings of the first embedding groove 22 and the second embedding groove 23, it is convenient to improve the structural stability after the installation of the support 40, ensure the stability of the first tooth 3 to make a seesaw-like balanced floating, and the second embedding groove 23 can also play a certain guiding effect on the installation of the support 40, improving the installation accuracy of the support 40.

[0031] Embodiment 8: This embodiment provides a bevel gear. In addition to including the technical solutions of the above embodiments, it also has the following technical features: A second protrusion 32 is provided on the surface of the first tooth 3 outside the mounting groove 20, and along the axial direction of the main body 1, the surface of the second protrusion 32 is flush with the surface of the tooth root 2; Wherein, a fourth gap 10 allowing the first tooth 3 to balance and float along the fulcrum 4 is formed between the second protrusion 32 and the tooth root 2; At the same time, an integral structure is adopted between the second protrusion 32 and the first tooth 3.

[0032] It can be seen from this embodiment that through the setting of the second protrusion 32 and the surface of the second protrusion 32 being flush with the surface of the tooth root 2, the stability of the meshing transmission between the two bevel gears is ensured, and a large gap between the teeth of the two bevel gears is avoided. The opening of the fourth gap 10 avoids the influence of the setting of the second protrusion 32 on the balanced floating of the first tooth 3.

[0033] Embodiment 9: This embodiment provides a bevel gear. In addition to including the technical solutions of the above embodiments, it also has the following technical features: The angle range for the first tooth 3 to balance and float along the fulcrum 4 is 0 - 1°.

[0034] It can be seen from this embodiment that through the thickness of the fourth gap 10, the elastic pad 5 and the elastic strip 6, the angular range of the balanced floating of the first tooth 3 along the fulcrum 4 is limited between 0-1°. On the one hand, it avoids the angular range of floating being limited to a small range, which may have too much impact on the transmission stability of the bevel gear. On the other hand, this angular range can be used as the error range of the deviation between the two axes when two bevel gears are installed. That is to say, after the two bevel gears are installed, the allowable error range of the corresponding two axes can be controlled within 0-1°, which improves the installation convenience and reduces the requirements for installation accuracy and machining accuracy to a certain extent.

[0035] Embodiment 10: This embodiment provides a bevel gear. In addition to including the technical solutions of the above embodiments, it also has the following technical features: A spline hole 102 is axially formed in the main body 1; Wherein, a flat key groove can also be axially formed in the main body 1, which is specifically set according to the application requirements and will not be elaborated here.

[0036] It can be seen from this embodiment that through the formation of the spline hole 102, it is convenient to install and connect the bevel gear with the input shaft and between the input shafts.

[0037] Finally, it should be noted that when two bevel gears are meshed and matched, the bevel gear of this application is matched with the traditional bevel gear, rather than both bevel gears adopting the bevel gear of this application, so as to avoid the balanced floating of the first teeth 3 of both bevel gears and affect the stability of the balanced floating and the meshing transmission stability.

[0038] The embodiments of the present application have been described above with reference to the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are only illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A bevel gear, characterized in that: include: A main body (1) comprising a connecting end (100) and a tooth end (101); Tooth roots (2) are arranged at equal intervals on the circumference of the tooth ends (101) and are provided with mounting grooves (20); A first tooth (3) mounted in the mounting groove (20); A swing structure, arranged in the mounting groove (20) and comprising a fulcrum (4); One end of the first tooth (3) is restricted in the mounting groove (20), so that the first tooth (3) can only float in a balanced manner along the fulcrum (4).

2. The bevel gear according to claim 1, characterized in that: Slot holes (21) are provided on the inner walls of both sides of the installation groove (20), and the first tooth (3) is located at one end of the installation groove (20) and extends toward both sides of the slot hole (21) to form a first protrusion (30); In the radial direction of the main body (1), an elastic pad (5) is provided between the inner wall of the mounting groove (20) and the first tooth (3), and an elastic strip (6) is provided between the first protrusion (30) and the inner wall of the slot hole (21), and is used for resetting the first tooth (3) after balanced floating along the fulcrum (4).

3. The bevel gear according to claim 2, characterized in that: A first gap (7) is left between the elastic strip (6) and the first tooth (3) and the inner wall of the slot (21), and a second gap (8) is left between the elastic pad (5) and the inner wall of the slot (21); The elastic pad (5) is bonded between the inner wall of the installation groove (20) and the first tooth (3) by a vulcanization process, and the elastic strip (6) is bonded between the first protrusion (30) and the inner wall of the slot hole (21) by a vulcanization process.

4. The bevel gear according to claim 3, characterized in that: The inner wall of the slot (21) away from the axial side of the main body (1) is arranged in an inclined manner; The elastic strip (6) is able to protrude toward the first gap (7) after being squeezed by the first protrusion (30), and after protruding, the elastic strip (6) abuts against the surface of the first tooth (3).

5. The bevel gear according to claim 2, characterized in that: The fulcrum (4) comprises: A support (40) is mounted at the midpoint of the mounting groove (20) and is arranged corresponding to the midpoint of the first tooth (3); A rotating member (41) is mounted on the support (40) and is cooperatively connected with the midpoint of the first tooth (3); Wherein, both ends of the rotating member (41) are rotatably connected to the support (40).

6. The bevel gear according to claim 5, characterized in that: The rotating member (41) comprises: A rotating shaft (410) is installed in the support (40) and has two ends rotatably connected to the support (40); A gear (411) is sleeved on the rotating shaft (410), and a top end thereof extends out of the support (40); A second tooth (31) meshing with the gear (411) is provided on a surface of the first tooth (3) close to the gear (411), and a third gap (9) is formed between the gear (411) and the elastic pad (5) on both radial sides, and a strip groove (50) matching the second tooth (31) is formed on the surface of the elastic pad (5) bonded to the first tooth (3).

7. The bevel gear according to claim 5, characterized in that: A first embedding groove (22) adapted to the support (40) is provided in the installation groove (20), and a second embedding groove (23) adapted to the support (40) is provided on the inner wall of the slot hole (21).

8. The bevel gear according to claim 1, characterized in that: A second protrusion (32) is provided on the surface of the first tooth (3) located outside the mounting groove (20), and along the axial direction of the main body (1), the surface of the second protrusion (32) is flush with the surface of the tooth root (2); A fourth gap (10) is formed between the second protrusion (32) and the tooth root (2), allowing the first tooth (3) to float in a balanced manner along the fulcrum (4).

9. The bevel gear according to claim 1, characterized in that: The first tooth (3) has a balanced floating angle range of 0-1° along the fulcrum (4).

10. The bevel gear according to claim 1, characterized in that: The main body (1) is axially provided with a spline hole (102).

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