CN213088687U

CN213088687U - Combined gear

Info

Publication number: CN213088687U
Application number: CN202021679017.1U
Authority: CN
Inventors: 刘彬; 华林旺; 王欢运; 何永寿; 邓炉生; 龚荣威; 郭文杰; 赵明; 赖国雄; 谢泽伟; 何子东
Original assignee: Shaoguan Bohan Machinery Technology Co ltd
Current assignee: Guangdong Youlike Technology Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-04-30
Anticipated expiration: 2030-08-12

Abstract

The utility model relates to the technical field of gears, and a modular gear is disclosed, including interior axle, interior axle surface is provided with mounting hole and trompil, interior axle front side is equipped with the screw thread seat, first screw hole has been seted up on screw thread seat surface, screw thread seat is close to interior axle one side fixedly connected with pull rod, pull rod one end runs through the trompil and extends to interior axle rear side, interior axle rear side is equipped with the baffle. This combination formula gear, through being equipped with the screw thread seat, pull rod and baffle, when needs are dismantled the gear from the motor shaft, use the bolt that corresponds the model, twist in the first screwed hole on screw thread seat surface, the gear is held up to one hand, this bolt is continued to be twisted through the instrument to another hand, can make the screw thread seat remove, thereby drive pull rod and baffle and outwards remove, and the axial displacement breaks away from until the gear in promoting, compare the mode of directly knocking, this gear dismantlement mode is simple more laborsaving, avoided damaging gear or motor shaft because of knocking.

Description

Combined gear

Technical Field

The utility model relates to the technical field of gears, specifically a modular gear.

Background

The gear is a mechanical element with a gear on a wheel rim which is continuously engaged to transmit motion and power, the gear transmission is the most widely applied transmission form in the mechanical transmission, the gear can realize the functions of changing the rotating speed and torque, changing the motion direction, changing the motion form and the like by being engaged with other toothed mechanical parts, the gear and the gear product thereof are important basic parts of mechanical equipment, the main transmission parts of most mechanical complete equipment are gear transmission, and the gear mechanism is widely used in industrial products.

At present, a plurality of gears are connected with a motor shaft through flat keys, but the gears are inconvenient to disassemble, workers often disassemble the gears by adopting a method of repeatedly and forcibly knocking up and down, and the mode has the high possibility of causing damage and scrapping of the motor shaft or an installation hole of the gear and needs further improvement.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a modular gear possesses and dismantles the convenience, saves advantages such as cost, has solved at present a lot of gears and has passed through the parallel key and be connected with the motor shaft, but is very inconvenient when the gear is dismantled, and the workman adopts the method of strikeing repeatedly by force often and dismantles the gear, and this kind of mode, the mounting hole that very probably leads to motor shaft or gear is impaired to be scrapped, needs further improved problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a combined gear comprises an inner shaft, wherein a mounting hole and an opening are formed in the surface of the inner shaft, a thread seat is arranged on the front side of the inner shaft, a first threaded hole is formed in the surface of the thread seat, a pull rod is fixedly connected to one side, close to the inner shaft, of the thread seat, one end of the pull rod penetrates through the opening and extends to the rear side of the inner shaft, a baffle is arranged on the rear side of the inner shaft and is fixedly connected with the pull rod, a round hole is formed in the surface of the baffle, a first lantern ring is fixedly sleeved on the outer edge of the inner shaft, a second lantern ring is arranged on the front side of the first lantern ring and is movably sleeved with the inner shaft, an outer toothed ring is fixedly sleeved on the outer edge of the second lantern ring, a plurality of uniformly distributed gear teeth are fixedly arranged on the edge of the outer toothed ring, a third lantern ring is arranged on the front side, and a fastening bolt is arranged in the second threaded hole.

Preferably, the number of the openings is two, and the two openings are symmetrically distributed on two sides of the mounting hole.

Preferably, the number of the pull rods is two, and the two pull rods are movably inserted into the two holes respectively.

Preferably, the first, second and third collars are all matched in size and shape.

Preferably, the number of the second threaded holes is set to be a plurality, and the plurality of threaded holes are distributed in an annular array.

Preferably, the aperture of the first threaded hole is slightly smaller than that of the mounting hole, and the aperture of the round hole is slightly larger than that of the mounting hole.

Compared with the prior art, the utility model provides a modular gear possesses following beneficial effect:

1. this combination formula gear, through being equipped with the screw thread seat, pull rod and baffle, when needs are dismantled the gear from the motor shaft, use the bolt that corresponds the model, twist in the first screwed hole on screw thread seat surface, the gear is held up to one hand, this bolt is continued to be twisted through the instrument to another hand, can make the screw thread seat remove, thereby drive pull rod and baffle and outwards remove, and the axial displacement breaks away from until the gear in promoting, compare the mode of directly knocking, this gear dismantlement mode is simple more laborsaving, avoided damaging gear or motor shaft because of knocking.

2. This combination formula gear, through being equipped with the first lantern ring, the second lantern ring and the third lantern ring, and fixed by fastening bolt, be favorable to axle and outer tooth ring combination and fixed, when the teeth of a cogwheel at outer ring edge is impaired, the accessible is twisted and is moved fastening bolt and dismantle outer ring gear, later can change the outer ring gear of the same model again, and twist and move fastening bolt fixed, compare integrated into one piece's gear, only need change outer ring gear when teeth of a cogwheel edge damages, avoided whole scrapping to cause the wasting of resources, and saved the cost.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a rear view of the present invention;

fig. 4 is a schematic structural view of the inner shaft of the present invention;

fig. 5 is a schematic structural view of the second collar of the present invention.

Wherein: 1. an inner shaft; 2. mounting holes; 3. opening a hole; 4. a threaded seat; 5. a first threaded hole; 6. a pull rod; 7. a baffle plate; 8. a circular hole; 9. a first collar; 10. a second collar; 11. an outer ring gear; 12. gear teeth; 13. a third collar; 14. a second threaded hole; 15. and fastening the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a combined gear includes an inner shaft 1, a mounting hole 2 and two openings 3 are formed in a surface of the inner shaft 1, in practical application, the mounting hole 2 is disposed in a center of the inner shaft 1, the mounting hole 2 has a similar structure to that of the mounting hole 2 in the prior art, and includes a circular hole 8 and a key slot, the two openings 3 are disposed in two, the two openings 3 are symmetrically disposed on two sides of the mounting hole 2, in practical application, the number of the openings 3 can be set as multiple according to practical situations, the plurality of openings 3 are distributed in an annular array, a screw seat 4 is disposed on a front side of the inner shaft 1, a first threaded hole 5 is disposed on a surface of the screw seat 4, the first threaded hole 5 is disposed in a center of the screw seat 4, a pull rod 6 is fixedly connected to one side of the screw seat 4 close to the inner shaft 1, one end of the pull rod 6 penetrates, two pull rods 6 are movably inserted with two holes 3 respectively, in practical application, the number of the pull rods 6 can be set to be a plurality according to practical conditions, the pull rods 6 are matched with the holes 3 respectively, a baffle 7 is arranged at the rear side of the inner shaft 1, the baffle 7 is fixedly connected with the pull rods 6, in practical application, bolts of corresponding types are used for screwing into first threaded holes 5 on the surface of a threaded seat 4, one hand holds the gear, the other hand continuously screws the bolts through a tool, so that the threaded seat 4 can be moved, the pull rods 6 and the baffle 7 are driven to move outwards, and the inner shaft 1 is pushed to move outwards until the gear is separated, compared with a direct knocking mode, the gear dismounting mode is simpler and labor-saving, the gear or motor shaft is prevented from being damaged due to knocking, round holes 8 are formed in the surface of the baffle 7, a first sleeve ring 9 is fixedly sleeved on the outer edge of the inner shaft 1, and the first sleeve ring, the front side of the first collar 9 is provided with a second collar 10, the second collar 10 is movably sleeved with the inner shaft 1, the outer edge of the second collar 10 is fixedly sleeved with an outer toothed ring 11, the outer toothed ring 11 and the second collar 10 are integrally arranged, the front side surface of the outer toothed ring 11 is flush with the front side surface of the inner shaft 1 and the front side surface of a third collar 13, the rear side surface of the outer toothed ring 11 is flush with the rear side surface of the inner shaft 1 and the rear side surface of the first collar 9, the edge of the outer toothed ring 11 is fixedly provided with a plurality of uniformly distributed gear teeth 12, the front side of the second collar 10 is provided with a third collar 13, the third collar 13 is movably sleeved with the inner shaft 1, the first collar 9, the second collar 10 and the third collar 13 are matched in size and shape, the surface of the third collar 13 is provided with a second threaded hole 14, a fastening bolt 15 is arranged in the second threaded hole 14, the number of the second threaded holes 14 is set to be a plurality, and the, through being equipped with first lantern ring 9, second lantern ring 10 and third lantern ring 13, and fixed by fastening bolt 15, be favorable to making up interior axle 1 and outer ring gear 11 and fixed, when the teeth of a cogwheel 12 at outer ring gear 11 edge is impaired, the accessible is twisted and is moved fastening bolt 15 and dismantle outer ring gear 11, later can change the outer ring gear 11 of the same model again, and twist and move fastening bolt 15 and realize fixing, compare integrated into one piece's gear, only need change outer ring gear 11 when the teeth of a cogwheel 12 edge is damaged, it causes the wasting of resources to have avoided scrapping wholly, and save the cost, the aperture of first screw hole 5 slightly is less than the aperture of mounting hole 2, guarantee that the bolt one end that is used for dismantling the gear can just hug closely the motor shaft, the aperture of round hole 8 slightly is greater than the aperture of mounting hole 2, avoid influencing the installation of gear and.

When in use, firstly, a bolt with a specific model is screwed into the first threaded hole 5 on the surface of the threaded seat 4 until one end of the bolt is tightly attached to the motor shaft in the mounting hole 2, then one hand holds the gear to avoid the gear from rotating, the other hand continues to screw the bolt, the threaded seat 4 moves relative to the bolt, the pull rod 6 and the push plate can be driven to move towards one side of the bolt, the pull rod 6 contacts the inner shaft 1 and pushes the inner shaft 1 to move, finally, the inner shaft 1 can be pushed out from the motor shaft, the whole gear is disassembled, when the gear teeth 12 are damaged and need to be replaced, the fastening bolts 15 are screwed to remove the first collar 9, the second collar 10 and the third collar 13, then the third collar 13 and the second collar 10 can be detached, the second collar 10 of a specified model is replaced, the second collar is placed between the first collar 9 and the third collar 13 again, and the fastening bolts 15 are screwed again to achieve fixation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A combined gear comprising an inner shaft (1), characterized in that: the inner shaft is characterized in that a mounting hole (2) and an opening (3) are formed in the surface of the inner shaft (1), a threaded seat (4) is arranged on the front side of the inner shaft (1), a first threaded hole (5) is formed in the surface of the threaded seat (4), a pull rod (6) is fixedly connected to one side, close to the inner shaft (1), of the threaded seat (4), one end of the pull rod (6) penetrates through the opening (3) and extends to the rear side of the inner shaft (1), a baffle (7) is arranged on the rear side of the inner shaft (1), the baffle (7) is fixedly connected with the pull rod (6), a round hole (8) is formed in the surface of the baffle (7), a first lantern ring (9) is fixedly sleeved on the outer edge of the inner shaft (1), a second lantern ring (10) is arranged on the front side of the first lantern ring (9), the second lantern ring (10) is movably sleeved on the inner shaft (1, the outer ring gear (11) edge is fixed and is provided with a plurality of evenly distributed teeth of a cogwheel (12), second lantern ring (10) front side is equipped with the third lantern ring (13), the third lantern ring (13) cup joints with interior axle (1) activity, third lantern ring (13) surface is equipped with second screw hole (14), be equipped with fastening bolt (15) in second screw hole (14).

2. A composite gear according to claim 1, characterised in that: the number of the open holes (3) is two, and the two open holes (3) are symmetrically distributed on two sides of the mounting hole (2).

3. A composite gear according to claim 1, characterised in that: the number of the pull rods (6) is two, and the two pull rods (6) are movably inserted into the two holes (3) respectively.

4. A composite gear according to claim 1, characterised in that: the first, second and third collars (9, 10, 13) are all matched in size and shape.

5. A composite gear according to claim 1, characterised in that: the number of the second threaded holes (14) is set to be a plurality of, and the plurality of threaded holes are distributed in an annular array.

6. A composite gear according to claim 1, characterised in that: the aperture of the first threaded hole (5) is slightly smaller than that of the mounting hole (2), and the aperture of the round hole (8) is slightly larger than that of the mounting hole (2).