High-strength automobile gear

Abstract

The utility model discloses a high-strength automobile gear, which relates to the technical field of automobile gears, solves the problem that the whole gear needs to be replaced after the outer ring of the gear is abraded, so that the maintenance cost is higher, and comprises a high-strength core body and an outer gear ring, and a plurality of connecting blocks which are annularly distributed are arranged on the outer circumference of the high-strength core body; a plurality of connecting grooves matched with the connecting blocks are formed in the inner circumference of the outer gear ring, inserting grooves are formed in the two sides of each connecting groove, and inserting blocks matched with the inserting grooves are slidably connected to the two sides of each connecting block. The whole size is combined in the mode that the high-strength core body and the outer gear ring are split, after the outer gear ring is abraded, only the outer gear ring needs to be detached and replaced, the whole gear does not need to be replaced, and the maintenance cost can be reduced.

Description

Technical Field

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

[0002] Gears are mechanical parts with teeth that can mesh with each other. Gear transmission is one of the most widely used transmissions in automobiles. It is a very important transmission mechanism that can be used to transmit motion and power between two shafts. Therefore, the strength of automobile gears is very important.

[0003] The existing Chinese patent with the announcement number CN219994321U discloses a wear-resistant automobile gear, including a main body mechanism and a wear-resistant mechanism. The wear-resistant mechanism is located inside the main body mechanism. The main body mechanism includes an automobile gear body, a mounting sleeve and a mounting hole. The mounting sleeve is fixedly mounted on the upper end of the automobile gear body, and the mounting hole is fixedly arranged on the upper end of the mounting sleeve; the main body mechanism also includes a strength component and a connecting tooth plate. The strength component is fixedly mounted on the upper end of the automobile gear body, and the connecting tooth plate is fixedly mounted on the outer end of the automobile gear body.

[0004] With respect to the above-mentioned related technologies, the inventors have found that there are at least the following problems in the technologies: In the above-mentioned technologies, although the strength component in the middle of the gear enhances the overall strength of the gear, the service life of the outer ring of the gear decreases relatively quickly due to long-term wear of the outer ring of the gear. When the outer ring of the gear is worn, the entire gear needs to be replaced, resulting in high maintenance costs. Utility Model Content

[0005] In order to improve the problem that when the outer ring of the gear is worn, the entire gear needs to be replaced, which leads to high maintenance costs, the utility model provides a high-strength automobile gear.

[0006] The utility model provides a high-strength automobile gear, which adopts the following technical solutions:

[0007] A high-strength automotive gear comprises a high-strength core and an outer gear ring, wherein a plurality of annularly distributed connecting blocks are provided on the outer circumference of the high-strength core, a plurality of connecting grooves adapted to the connecting blocks are provided on the inner circumference of the outer gear ring, slots are provided on both sides of the connecting grooves, plug-in blocks adapted to the slots are slidably connected on both sides of the connecting blocks, a cavity is provided inside the high-strength core near each connecting block, a screw is rotatably connected in the cavity, one end of the screw is connected to a drive assembly, a movable block is threadedly connected to the screw, guide grooves are provided on both sides of the movable block, one end of the plug-in block extends into the movable block and is fixedly connected to a guide block, and the guide block is slidably connected in the guide groove.

[0008] By adopting the above technical solution, through the coordinated design of the connecting block, connecting groove, slot, insert block, screw, drive assembly, movable block, guide groove and guide block, when assembling the gear, the outer gear ring is put on the outside of the high-strength core so that the connecting block is completely inserted into the corresponding connecting groove. Then the screw can be rotated by the drive assembly so that the screw drives the movable block to move along the screw, and the movable block drives the guide block to slide in the guide groove, so that the guide block drives the insert block to extend out of the connecting block and insert it into the corresponding slot. The connecting block can be connected to the connecting groove, thereby realizing the combination of the high-strength core and the outer gear ring. When the high-strength core and the outer gear ring need to be disassembled, it is only necessary to rotate the screw in the opposite direction through the drive assembly to remove the insert block from the slot to separate the high-strength core and the outer gear ring. By combining the entire size in a manner that the high-strength core and the outer gear ring are separated, when the outer gear ring is worn, it is only necessary to disassemble and replace the outer gear ring without replacing the entire gear, thereby reducing maintenance costs.

[0009] Optionally, the drive assembly includes a nut, a worm and a worm wheel, the nut is fixedly connected to the end of the worm, the worm rotates and extends into the cavity, and the worm wheel is fixedly mounted on the screw and meshes with the worm.

[0010] By adopting the above technical solution, during operation, a tool can be used to rotate the nut, so that the nut drives the worm to rotate, the worm drives the worm wheel to rotate, and the worm wheel drives the screw to rotate.

[0011] Optionally, a plurality of annularly distributed grooves are provided on the surface of the high-strength core, and the nuts are arranged in the grooves.

[0012] By adopting the above technical solution, the nut can be stored and protected.

[0013] Optionally, limit blocks are provided on both sides of the movable block, and a limit groove is provided on the inner wall of the cavity, and the limit blocks slide in the limit groove.

[0014] By adopting the above technical solution, the movable block can be limited.

[0015] Optionally, the outer surface of the outer gear ring is provided with a surface hardening layer.

[0016] By adopting the above technical solution, the surface hardened layer is formed by common laser quenching technology, which greatly improves the wear resistance of the gear surface.

[0017] Optionally, an annular oil passage is provided inside the outer gear ring, and an oil outlet hole communicating with the annular oil passage is provided in each tooth groove of the outer gear ring.

[0018] By adopting the above technical solution, lubricating oil can be injected into the annular oil channel. When the gear rotates, the lubricating oil will enter the oil outlet hole under the action of centrifugal force and be discharged from the oil outlet hole into the tooth groove of the gear, lubricating the gear, reducing the wear on the gear, and at the same time playing a cooling role.

[0019] Optionally, a plurality of oil filling holes connected to the annular oil channel are provided on the surface of the outer gear ring, and an oil plug is connected to the inner thread of the oil filling hole.

[0020] By adopting the above technical solution, lubricating oil can be injected into the annular oil channel through the oil filling hole, and the oil plug can seal the oil filling hole.

[0021] Optionally, a check groove is provided inside the oil outlet hole, a spring is provided inside the check groove, and a sealing ball is fixedly connected to one end of the spring.

[0022] By adopting the above technical solution, when the gear is stationary, the spring will push the sealing ball to seal the check groove, preventing the lubricating oil from being discharged from the oil outlet hole, and at the same time preventing external impurities from entering the oil outlet hole. When the gear rotates, the sealing ball will squeeze the spring under the action of centrifugal force, and at the same time, the lubricating oil will enter the oil outlet hole under the action of centrifugal force.

[0023] In summary, the present invention has the following beneficial effects:

[0024] 1. The utility model combines the entire size with a high-strength core and an outer gear ring. When the outer gear ring is worn, it only needs to be disassembled and replaced without replacing the entire gear, which can reduce maintenance costs.

[0025] 2. The utility model is equipped with an annular oil channel, an oil outlet hole, an oil filling hole, an oil plug, a check groove, a spring and a sealing ball, and lubricating oil can be injected into the annular oil channel through the oil filling hole. When the gear is stationary, the spring will push the sealing ball to seal the check groove to prevent the lubricating oil from being discharged from the oil outlet hole. When the gear rotates, the sealing ball will squeeze the spring under the action of centrifugal force, and the lubricating oil will enter the oil outlet hole under the action of centrifugal force, and be discharged from the oil outlet hole into the tooth groove of the gear to lubricate the gear, reduce the wear on the gear, and at the same time have a cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the high-strength core of the utility model.

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the outer gear ring of the utility model.

[0029] Figure 4 This utility model Figure 2 A magnified view of the structure at center A.

[0030] Figure 5 This utility model Figure 1 Enlarged view of the structure at point B in the middle.

[0031] Figure 6 This utility model Figure 3 Enlarged view of the structure at point C in the middle.

[0032] Description of reference numerals:

[0033] 1. High-strength core; 11. Connecting block; 12. Insert block; 13. Screw; 14. Drive assembly; 141. Nut; 142. Worm; 143. Worm gear; 15. Movable block; 16. Guide groove; 17. Guide block; 18. Groove; 19. Limit block; 2. Outer gear ring; 21. Connecting groove; 22. Slot; 23. Hardened layer; 24. Annular oil channel; 25. Oil outlet; 26. Oil filling hole; 27. Oil plug; 28. Check groove; 29. ​​Spring; 210. Sealing ball. DETAILED DESCRIPTION

[0034] The following is in conjunction with the appended drawings in the embodiment of the present utility model. Figure 1-6 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0035] Please refer to Figure 1-4A high-strength automobile gear includes a high-strength core 1 and an outer ring gear 2. By combining the high-strength core 1 and the outer ring gear 2 in a separate manner, when the outer ring gear 2 is worn, it is only necessary to disassemble and replace the outer ring gear 2 without replacing the entire gear, which can reduce maintenance costs. A plurality of annularly distributed connecting blocks 11 are provided on the outer circumference of the high-strength core 1, and a plurality of connecting grooves 21 adapted to the connecting blocks 11 are provided on the inner circumference of the outer gear ring 2. Slots 22 are provided on both sides of the connecting grooves 21, and plugs 12 adapted to the slots 22 are slidably connected on both sides of the connecting block 11. A cavity is provided inside the high-strength core 1 near each connecting block 11, and a screw 13 is rotatably connected in the cavity. One end of the screw 13 is connected to a drive assembly 14, and a movable block 15 is threadedly connected to the screw 13. Guide grooves 16 are provided on both sides of the movable block 15, and one end of the plug 12 extends into the movable block 15 and is fixedly connected to a guide block 17. The guide block 17 is slidably connected in the guide groove 16, through the connecting block 11, the connecting groove 21, the slot 22, the plug 12, the screw 13, the drive assembly 14, The matching design of the movable block 15, the guide groove 16 and the guide block 17 is such that when assembling the gears, the outer gear ring 2 is put on the outside of the high-strength core 1 so that the connecting block 11 is completely inserted into the corresponding connecting groove 21. Then, the screw 13 can be rotated by the driving component 14, so that the screw 13 drives the movable block 15 to move along the screw 13, so that the movable block 15 drives the guide block 17 to slide in the guide groove 16, so that the guide block 17 drives the plug 12 to extend out of the connecting block 11 and insert it into the corresponding slot 22, so that the connecting block 11 can be connected to the connecting groove 21, thereby realizing the combination of the high-strength core 1 and the outer gear ring 2. When the high-strength core 1 and the outer gear ring 2 need to be disassembled, it is only necessary to rotate the screw 13 in the opposite direction through the driving component 14 to move the plug 12 out of the slot 22, so that the high-strength core 1 and the outer gear ring 2 can be separated.

[0036] Specifically, refer to Figure 4 and Figure 5 The drive assembly 14 includes a nut 141, a worm 142 and a worm wheel 143. The nut 141 can be an external hexagonal nut or an internal hexagonal nut to increase the diversity of the tool. The nut 141 is fixedly connected to the end of the worm 142, and the worm 142 rotates and extends into the cavity. The worm wheel 143 is fixedly mounted on the screw 13 and engages with the worm 142. Through the setting of the drive assembly 14, during operation, a tool can be used to rotate the nut 141, so that the nut 141 drives the worm 142 to rotate, and the worm 142 drives the worm wheel 143 to rotate, and the worm wheel 143 drives the screw 13 to rotate; the surface of the high-strength core 1 is provided with a plurality of annular grooves 18, and the nut 141 is arranged in the groove 18. Through the setting of the groove 18, the nut 141 can be stored and protected.

[0037] Among them, limit blocks 19 are set on both sides of the movable block 15, and the inner wall of the cavity is provided with a limit groove. The limit blocks 19 slide in the limit groove. Through the cooperation between the limit blocks 19 and the limit groove, the movable block 15 can be limited.

[0038] Reference Figure 3 The outer surface of the outer gear ring 2 is provided with a surface hardened layer 23, which is formed by common laser quenching technology, greatly improving the wear resistance of the gear surface and reducing the heat and wear generated by the friction between gears.

[0039] Reference Figure 3 、 Figure 4 and Figure 6 , an annular oil passage 24 is provided inside the outer gear ring 2, and an oil outlet hole 25 communicating with the annular oil passage 24 is provided in each tooth groove of the outer gear ring 2. A plurality of oil filling holes 26 communicating with the annular oil passage 24 are provided on the surface of the outer gear ring 2. An oil plug 27 is connected to the inner thread of the oil filling hole 26. A check groove 28 is provided inside the oil outlet hole 25, and a spring 29 is provided inside the check groove 28. A sealing ball 210 is fixedly connected to one end of the spring 29. Through the annular oil passage 24, the oil outlet hole 25, the oil filling hole 26, the oil plug 27, the check groove 28, The arrangement of the spring 29 and the sealing ball 210 allows lubricating oil to be injected into the annular oil channel 24 through the oil filling hole 26. When the gear is stationary, the spring 29 will push the sealing ball 210 to seal the check groove 28 to prevent the lubricating oil from being discharged from the oil outlet hole 25. When the gear rotates, the sealing ball 210 will squeeze the spring 29 under the action of centrifugal force. At the same time, the lubricating oil will enter the oil outlet hole 25 under the action of centrifugal force and be discharged from the oil outlet hole 25 into the tooth groove of the gear, lubricating the gear, reducing the wear on the gear, and at the same time playing a cooling role.

[0040] The implementation principle of the present invention is as follows: when assembling the gears, the outer gear ring 2 is put on the outside of the high-strength core 1 so that the connecting block 11 is completely inserted into the corresponding connecting groove 21. Then, the screw rod 13 can be rotated by the driving component 14, so that the screw rod 13 drives the movable block 15 to move along the screw rod 13, so that the movable block 15 drives the guide block 17 to slide in the guide groove 16, so that the guide block 17 drives the plug block 12 to extend from the connecting block 11 and insert it into the corresponding slot 22, so that the connecting block 11 can be connected to the connecting groove 21, thereby realizing the combination of the high-strength core 1 and the outer gear ring 2. When the high-strength core 1 and the outer gear ring 2 need to be disassembled, it is only necessary to rotate the screw rod 13 in the opposite direction through the driving component 14 to move the plug block 12 out of the slot 22. Separate the high-strength core 1 and the outer gear ring 2, and combine the high-strength core 1 and the outer gear ring 2 in a split manner. When the outer gear ring 2 is worn, it is only necessary to disassemble and replace the outer gear ring 2 without replacing the entire gear, which can reduce maintenance costs; lubricating oil can be injected into the annular oil channel 24 through the oil filling hole 26. When the gear is stationary, the spring 29 will push the sealing ball 210 to seal the check groove 28 to prevent the lubricating oil from being discharged from the oil outlet 25. When the gear rotates, the sealing ball 210 will squeeze the spring 29 under the action of centrifugal force. At the same time, the lubricating oil will enter the oil outlet hole 25 under the action of centrifugal force, and be discharged from the oil outlet hole 25 into the tooth groove of the gear, lubricating the gear, reducing the wear on the gear, and at the same time playing a cooling role.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-strength automobile gear, comprising a high-strength core (1) and an outer gear ring (2), characterized in that: The high-strength core (1) is provided with a plurality of annularly distributed connecting blocks (11) on the outer circumference, the outer gear ring (2) is provided with a plurality of connecting grooves (21) adapted to the connecting blocks (11), slots (22) are provided on both sides of the connecting grooves (21), and plug blocks (12) adapted to the slots (22) are slidably connected on both sides of the connecting block (11), the high-strength core (1) is provided with a cavity near the interior of each connecting block (11), a screw (13) is rotatably connected in the cavity, one end of the screw (13) is connected to a drive assembly (14), a movable block (15) is threadedly connected to the screw (13), and guide grooves (16) are provided on both sides of the movable block (15), one end of the plug block (12) extends into the movable block (15) and is fixedly connected to a guide block (17), and the guide block (17) is slidably connected in the guide groove (16).

2. A high-strength automotive gear according to claim 1, characterized in that: The driving assembly (14) comprises a nut (141), a worm (142) and a worm wheel (143); the nut (141) is fixedly connected to the end of the worm (142); the worm (142) rotates and extends into the cavity; and the worm wheel (143) is fixedly mounted on the screw (13) and meshes with the worm (142).

3. The high-strength automotive gear according to claim 2, characterized in that: The surface of the high-strength core (1) is provided with a plurality of annularly distributed grooves (18), and the nuts (141) are arranged in the grooves (18).

4. The high-strength automotive gear according to claim 1, characterized in that: Limiting blocks (19) are provided on both sides of the movable block (15), and limiting grooves are provided on the inner wall of the cavity, and the limiting blocks (19) slide in the limiting grooves.

5. The high-strength automotive gear according to claim 1, characterized in that: The outer surface of the outer gear ring (2) is provided with a surface hardening layer (23).

6. The high-strength automotive gear according to claim 1, characterized in that: An annular oil passage (24) is provided inside the outer gear ring (2), and an oil outlet hole (25) communicating with the annular oil passage (24) is provided in each tooth groove of the outer gear ring (2).

7. The high-strength automotive gear according to claim 6, characterized in that: The surface of the outer gear ring (2) is provided with a plurality of oil filling holes (26) connected to the annular oil passage (24), and the oil filling holes (26) are internally threadedly connected to oil plugs (27).

8. The high-strength automotive gear according to claim 6, characterized in that: A check groove (28) is provided inside the oil outlet hole (25), a spring (29) is provided inside the check groove (28), and a sealing ball (210) is fixedly connected to one end of the spring (29).

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