CN210661291U

CN210661291U - Gear box

Info

Publication number: CN210661291U
Application number: CN201921803617.1U
Authority: CN
Inventors: 陈革新
Original assignee: Wuxi Gexin Cnc Technology Co ltd
Current assignee: Wuxi Gexin Cnc Technology Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-06-02
Anticipated expiration: 2029-10-25

Abstract

The utility model discloses a gear box, including gear box body, driven shaft, first helical gear, lower pressure seat and second helical gear, gear box body's top is provided with the gear box apron, and the inside of gear box apron is provided with the bearing gland, the inside of bearing gland runs through there is the straight-teeth gear, and the top of straight-teeth gear installs the gear gland, be provided with the sealing washer on gear box body's the bottom outer wall, the ventilation groove has been seted up on gear box body's the outer wall, and the internally mounted in ventilation groove has the dust screen, on the second helical gear was fixed in the outer wall of driving shaft, and second helical gear and first helical gear meshing are connected. According to the gear box, the ventilation groove is formed in the outer wall of the gear box body, the dustproof net is arranged inside the ventilation groove, and the aperture of the dustproof net is 0.1-0.5mm, so that when the gear box body is subjected to heat dissipation, external impurities can be effectively intercepted, and the cleanliness of the interior of the gear box body is kept.

Description

Gear box

Technical Field

The utility model relates to a gear box technical field specifically is a gear box.

Background

The gearbox is an important mechanical part widely applied to a wind generating set, mainly functions to transmit power generated by a wind wheel under the action of wind power to a generator and enable the generator to obtain a corresponding rotating speed, and is widely applied to conveying equipment and chemical equipment at present.

But the existing gear box still has some shortcomings in the use process, for example, the gear box can generate heat when in use, and the heat is in the process of dissipating, external impurities easily enter the gear box, so that the cleanness inside the gear box is influenced.

Disclosure of Invention

An object of the utility model is to provide a gear box to solve the gear box on the existing market that above-mentioned background art provided inside can produce the heat when using, and the heat is at the in-process of loosing, and outside impurity gets into inside the gear box easily, has influenced the inside cleanliness of gear box, and traditional gear box adopts the anti-backlash gear structure moreover, and stability is not high, can not be applicable to high-power motor's use, thereby has reduced the problem of the practicality of gear box.

In order to achieve the above object, the utility model provides a following technical scheme: a gear box comprises a gear box body, a driven shaft, a first helical gear, a lower pressing seat and a second helical gear, wherein a gear box cover plate is arranged above the gear box body, an upper bearing gland is arranged inside the gear box cover plate, a straight gear penetrates through the inside of the upper bearing gland, a gear gland is arranged at the top of the straight gear, the driven shaft penetrates through the inside of the straight gear, a driving shaft is arranged below the gear box body, lower bearing glands are arranged on the left side and the right side of one end, located inside the gear box body, of the driving shaft, a shaft sleeve is arranged at the joint of the driven shaft and the gear box body, the first helical gear is arranged on the outer wall of the driven shaft, a butterfly spring is arranged above the first helical gear, an upper pressing seat is arranged above the butterfly spring, a butterfly spring is arranged above the lower pressing seat, a groove is formed in the first, and the groove is connected with the driven shaft through a fixture block, the fixture block is fixed on the outer wall of the driven shaft, a sealing ring is arranged on the outer wall of the bottom of the gear box cover plate, a ventilation groove is formed in the outer wall of the gear box body, a dustproof net is arranged inside the ventilation groove, the second helical gear is fixed on the outer wall of the driving shaft, and the second helical gear is meshed with the first helical gear.

Preferably, the connection mode of the straight gear and the driven shaft is welding, and the connection mode of the straight gear and the gear gland is laminating connection.

Preferably, the driven shaft and the clamping block are of an integrated structure, and the clamping block forms a dismounting structure through the groove and the first bevel gear.

Preferably, the number of the belleville springs is two, and the 2 belleville springs are respectively connected with the lower pressing seat and the upper pressing seat in an attaching mode.

Preferably, the connection mode of the sealing ring and the gear box cover plate is bonding, and the connection mode of the sealing ring and the gear box body is joint connection.

Preferably, the ventilation grooves and the dust screens are connected through bolts, the aperture of each dust screen is 0.1-0.5mm, and the ventilation grooves are arranged in two groups.

Compared with the prior art, the beneficial effects of the utility model are that: the gear box is arranged on the upper portion of the gear box,

(1) the outer wall of the gear box body is provided with a ventilation groove, a dustproof net is arranged in the ventilation groove, and the aperture of the dustproof net is 0.1-0.5mm, so that when the gear box body is radiated, the entering of external impurities can be effectively intercepted, and the cleanness of the interior of the gear box body is kept;

(2) 2 first bevel gears are arranged, and disc springs are arranged among the 2 first bevel gears, the upper pressure seat and the lower shaft seat, so that when the gear box is used, a gap eliminating effect can be achieved through the disc springs, and the structure of the gear box is more stable when the gear box is used;

(3) first helical gear passes through recess and fixture block and constitutes dismantlement structure with the driven shaft, and the equal angular distribution of fixture block is around the driven shaft, and when first helical gear appears damaging like this, easily dismantle the change to first helical gear, for staff's operation brings the facility, has increased the flexibility of this gear box.

Drawings

FIG. 1 is a schematic view of the overall main sectional structure of the present invention;

FIG. 2 is a schematic view of a cross-sectional structure of the connection between the driven shaft and the first bevel gear according to the present invention;

FIG. 3 is a schematic view of the connection overlooking structure of the first bevel gear and the driven shaft according to the present invention;

fig. 4 is the connecting structure diagram of the gear box cover plate and the sealing ring of the present invention.

In the figure: 1. a gear housing; 2. a gear case cover plate; 3. an upper bearing gland; 4. a spur gear; 5. a gear gland; 6. a driven shaft; 7. a drive shaft; 8. a lower bearing gland; 9. a first helical gear; 10. a shaft sleeve; 11. a belleville spring; 12. pressing down the base; 13. an upper pressing seat; 14. a groove; 15. a clamping block; 16. a seal ring; 17. a ventilation slot; 18. a dust screen; 19. a second bevel gear.

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. 1-4, the present invention provides a technical solution: a gear box comprises a gear box body 1, a gear box cover plate 2, an upper bearing gland 3, a straight gear 4, a gear gland 5, a driven shaft 6, a driving shaft 7, a lower bearing gland 8, a first helical gear 9, a shaft sleeve 10, a belleville spring 11, a lower pressure seat 12, an upper pressure seat 13, a groove 14, a clamping block 15, a sealing ring 16, a ventilation groove 17, a dustproof net 18 and a second helical gear 19, wherein the gear box cover plate 2 is arranged above the gear box body 1, the upper bearing gland 3 is arranged inside the gear box cover plate 2, the straight gear 4 penetrates through the upper bearing gland 3, the gear gland 5 is arranged at the top of the straight gear 4, the driven shaft 6 penetrates through the straight gear 4, the driving shaft 7 is arranged below the gear box body 1, the lower bearing glands 8 are arranged on the left side and the right side of one end, located inside the gear box body 1, of the driving shaft 7, the shaft sleeve 10 is arranged, the first bevel gear 9 is installed on the outer wall of the driven shaft 6, a belleville spring 11 is arranged above the first bevel gear 9, an upper pressing seat 13 is arranged above the belleville spring 11, the belleville spring 11 is arranged above a lower pressing seat 12, a groove 14 is formed in the first bevel gear 9, the groove 14 is connected with the driven shaft 6 through a clamping block 15, the clamping block 15 is fixed on the outer wall of the driven shaft 6, a sealing ring 16 is arranged on the outer wall of the bottom of the gear box cover plate 2, a ventilation groove 17 is formed in the outer wall of the gear box body 1, a dustproof net 18 is installed in the ventilation groove 17, a second bevel gear 19 is fixed on the outer wall of the driving shaft 7, and the second bevel gear 19 is meshed with the first bevel gear;

the straight gear 4 and the driven shaft 6 are connected in a welding mode, and the straight gear 4 and the gear gland 5 are connected in a fitting mode, so that the firmness of connection between the straight gear 4 and the driven shaft 6 is ensured, and the phenomenon of falling off in the using process is effectively prevented;

the driven shaft 6 and the fixture block 15 are of an integrated structure, and the fixture block 15 and the first bevel gear 9 form a dismounting structure through the groove 14, so that when the first bevel gear 9 is damaged, the first bevel gear 9 is convenient to dismount and replace, and convenience is brought to operation of workers;

the two belleville springs 11 are arranged, and 2 belleville springs 11 are respectively connected with the lower pressing seat 12 and the upper pressing seat 13 in an attaching mode, so that the gear box is more stable in use under the action of eliminating gaps through the belleville springs 11, and can be suitable for a high-power motor;

the connection mode of the sealing ring 16 and the gear box cover plate 2 is bonding, and the connection mode of the sealing ring 16 and the gear box body 1 is laminating connection, so that the sealing performance between the gear box cover plate 2 and the gear box body 1 is better, and the normal use of the gear box is further ensured;

the ventilation grooves 17 and the dust screens 18 are connected through bolts, the aperture of each dust screen 18 is 0.1-0.5mm, and the ventilation grooves 17 are divided into two groups, so that the external impurities can be effectively intercepted under the condition that the normal heat dissipation of the gear box is ensured, and the cleanness inside the gear box is ensured.

The working principle is as follows: when the gearbox is used, as shown in fig. 1 and 3, firstly, a worker installs the gearbox at a corresponding position, then connects the external motor with the driving shaft 7, and starts the external motor to drive the driving shaft 7 to rotate, because the second bevel gear 19 on the driving shaft 7 is meshed with the first bevel gear 9, two first bevel gears 9 are provided, and the driven shaft 6 penetrates through the first bevel gear 9, so that when the second bevel gear 19 rotates, 2 first bevel gears 9 and the driven shaft 6 can be driven to rotate together, 2 driven shafts 6 rotate inside the gearbox body 1, the top of the driven shaft 6 is provided with the spur gear 4, and the spur gear 4 can be driven to rotate together, because the butterfly spring 11 is arranged between 2 first bevel gears 9 and the lower pressing seat 12 and the upper pressing seat 13, under the action of the butterfly spring 11, the gear box can be subjected to a clearance elimination effect, so that the gear box is more stable in use and can be suitable for a high-power motor;

as shown in fig. 2, since the first bevel gear 9 is provided with a groove 14 therein, and the groove 14 is connected with the driven shaft 6 through a latch 15, therefore, when the first bevel gear 9 is damaged, the first bevel gear 9 is convenient to disassemble and replace, the operation of workers is convenient, the flexibility of the gear box is improved, as shown in fig. 1, because the joint of the gear box cover plate 2 and the gear box body 1 is provided with a sealing ring 16, therefore, the sealing performance of the gear box is better, and simultaneously, because the ventilation grooves 17 at the left side and the right side of the gear box body 1 are provided with the dustproof nets 18, therefore, under the condition of ensuring the normal heat dissipation of the gear box, the gear box can effectively intercept external impurities and keep the cleanness inside the gear box, the above is the operation of the whole device, and the details not described in the present specification are the prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a gear box, includes gear box body (1), driven shaft (6), first helical gear (9), pushes down seat (12) and second helical gear (19), its characterized in that: the gearbox cover plate (2) is arranged above the gearbox body (1), the upper bearing gland (3) is arranged inside the gearbox cover plate (2), a straight gear (4) penetrates through the inner portion of the upper bearing gland (3), a gear gland (5) is installed at the top of the straight gear (4), the driven shaft (6) penetrates through the inner portion of the straight gear (4), a driving shaft (7) is arranged below the gearbox body (1), lower bearing glands (8) are arranged on the left side and the right side of one end, located inside the gearbox body (1), of the driving shaft (7), a shaft sleeve (10) is arranged at the joint of the driven shaft (6) and the gearbox body (1), the first helical gear (9) is installed on the outer wall of the driven shaft (6), a butterfly spring (11) is arranged above the first helical gear (9), and an upper pressure seat (13) is arranged above the butterfly spring (11), the top of pushing down seat (12) is provided with belleville spring (11), recess (14) are seted up to the inside of first helical gear (9), and recess (14) are connected with driven shaft (6) through fixture block (15) to fixture block (15) are fixed in on the outer wall of driven shaft (6), be provided with sealing washer (16) on the bottom outer wall of gearbox apron (2), set up on the outer wall of gearbox casing (1) ventilation groove (17), and the internally mounted of ventilation groove (17) has dust screen (18), second helical gear (19) are fixed in on the outer wall of driving shaft (7), and second helical gear (19) and first helical gear (9) meshing connection.

2. A gearbox according to claim 1 wherein: the connection mode of straight-tooth gear (4) and driven shaft (6) is welding, and the connection mode of straight-tooth gear (4) and gear gland (5) is laminating connection.

3. A gearbox according to claim 1 wherein: the driven shaft (6) and the fixture block (15) are of an integrated structure, and the fixture block (15) forms a dismounting structure through the groove (14) and the first bevel gear (9).

4. A gearbox according to claim 1 wherein: the two butterfly springs (11) are arranged, and the 2 butterfly springs (11) are respectively connected with the lower pressing seat (12) and the upper pressing seat (13) in an attaching mode.

5. A gearbox according to claim 1 wherein: the connection mode of sealing washer (16) and gear box apron (2) is for bonding, and the connection mode of sealing washer (16) and gear box body (1) is for laminating the connection.

6. A gearbox according to claim 1 wherein: the ventilation grooves (17) are connected with the dust screen (18) through bolts, the aperture of the dust screen (18) is 0.1-0.5mm, and two groups of ventilation grooves (17) are arranged.