CN216643030U

CN216643030U - Overload protection type helical gear worm speed reducer

Info

Publication number: CN216643030U
Application number: CN202123038810.0U
Authority: CN
Inventors: 章忠石
Original assignee: Zhejiang Boqiang Transmission Co ltd
Current assignee: Zhejiang Boqiang Transmission Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-31
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses an overload protection type helical gear worm and gear speed reducer, and particularly relates to the technical field of speed reducers. According to the utility model, through the cooperation of the speed sensor and the controller, the rotating speed of the worm can be monitored, and the electric push rod is started to drive the ring plate and the worm wheel to move upwards, so that the worm wheel is separated from the worm, and further the worm idles, so that the worm wheel and the worm are not subjected to meshing resistance, the worm wheel and the worm are prevented from being damaged by overload, and the protection on the worm wheel and the worm is improved.

Description

Overload protection type helical gear worm speed reducer

Technical Field

The utility model relates to the technical field of speed reducers, in particular to an overload protection type helical gear worm speed reducer.

Background

The worm gear speed reducer is a power transmission mechanism, and utilizes the speed converter of gear to reduce the number of revolutions of motor to required number of revolutions and obtain the mechanism with larger torque.

The existing speed reducer has limited torque, is easy to damage the speed reducer when meeting overload conditions, shortens the service life of the speed reducer, increases the maintenance cost of the speed reducer, and therefore the overload protection type helical gear worm speed reducer is needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides the overload protection type helical-tooth worm and gear speed reducer, the rotation speed of the worm can be monitored through the matching of the speed sensor and the controller, the electric push rod is started to drive the ring plate and the worm wheel to move upwards, the worm wheel is separated from the worm, the worm rotates idly, the worm and the gear cannot be subjected to meshed resistance, the worm and the gear are prevented from being damaged by overload, the protection of the worm and the gear is improved, and the problems in the background art are solved.

In order to achieve the purpose, the utility model provides the following technical scheme: overload protection type skewed tooth worm gear speed reducer, including the main tank body, the inside drive shaft that is equipped with of main tank body, drive shaft top and bottom all through the bearing respectively with main tank body inner chamber top and bottom swing joint, the outside cover of drive shaft is equipped with the worm wheel, be equipped with coupling assembling between drive shaft and the worm wheel, the worm wheel top is equipped with the crown plate, the crown plate passes through ball bearing and worm wheel top swing joint, the crown plate top is equipped with vertical lifting subassembly, the fixed intercommunication in main tank body front side has from the box, from the inside worm that is equipped with of box, the worm wheel meshes with the worm mutually, the worm both ends all through the bearing respectively with from box both sides inner wall swing joint, the fixed speedtransmitter that is equipped with in worm one end top, the fixed controller that is equipped with in main tank body inner chamber bottom.

In a preferred embodiment, coupling assembling includes two spacing grooves, and both sides around the drive shaft are seted up respectively to two spacing grooves, the spacing inslot portion is equipped with the limiting plate, limiting plate and one side inner wall fixed connection of worm wheel can order about the drive shaft to rotate through the cooperation of limiting plate and spacing groove along with worm pivoted worm wheel.

In a preferred embodiment, vertical lifting subassembly includes two electric putter, and both ends top around the crown plate is located respectively to two electric putter, electric putter bottom and crown plate top fixed connection, electric putter top and main tank body inner chamber top fixed connection, through electric putter's setting, are convenient for drive crown plate and worm wheel and shift up to can make worm wheel and worm separation, make the worm be in idle running state, avoid both meshed resistance to cause the damage each other.

In a preferred embodiment, an alarm and a wireless network card are fixedly arranged at the bottom of the inner cavity of the main box body, the alarm is positioned on one side of the wireless network card, the alarm is started through a controller to perform early warning, overload information is transmitted through the setting of the wireless network card, and the running state of user equipment is prompted.

In a preferred embodiment, a motor is fixedly arranged on one side of the slave box body, an output end of the motor penetrates through the slave box body and is fixedly connected with one end of a worm, the worm is driven to rotate by the motor, and then the worm drives an engaged worm wheel to rotate.

In a preferred embodiment, the main box body and the auxiliary box body are fixedly provided with a plurality of radiating fins, the radiating fins are respectively and uniformly distributed outside the main box body and the auxiliary box body at intervals, the radiating efficiency of the main box body and the auxiliary box body can be improved through the arrangement of the radiating fins, the heat in the main box body and the heat in the auxiliary box body can not be dissipated, and further the damage of overheating to components in the main box body and the auxiliary box body can be avoided.

The utility model has the technical effects and advantages that:

the utility model monitors the rotating speed of the worm through the speed sensor, transmits monitoring information to the controller, when the overload condition occurs due to abnormal speed, the controller starts the electric push rod to drive the ring plate and the worm wheel to move upwards, further the worm wheel and the worm can be separated, the worm idles, the worm wheel and the worm cannot be subjected to meshing resistance, the damage to the worm wheel and the worm due to overload is avoided, meanwhile, the controller starts the alarm to give an early warning, and the overload information is transmitted through the setting of the wireless network card to prompt the running state of user equipment.

Drawings

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

FIG. 2 is a sectional view of the main casing and the sub-casing of the present invention.

Fig. 3 is an exploded view of the main tank of the present invention.

Fig. 4 is an exploded view of the drive shaft and worm gear of the present invention.

FIG. 5 is a sectional view taken from the top of the case of the present invention.

The reference signs are: 1. a main box body; 2. a drive shaft; 3. a worm gear; 4. a ring plate; 5. a slave box body; 6. a worm; 7. a speed sensor; 8. a controller; 9. a limiting groove; 10. a limiting plate; 11. an electric push rod; 12. an alarm; 13. a wireless network card; 14. a motor; 15. and (4) radiating fins.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached drawings 1-5 in the specification, the overload protection type helical-tooth worm gear reducer of the embodiment comprises a main box body 1, a driving shaft 2 is arranged inside the main box body 1, the top end and the bottom end of the driving shaft 2 are respectively and movably connected with the top and the bottom of an inner cavity of the main box body 1 through bearings, a worm wheel 3 is sleeved outside the driving shaft 2, a connecting assembly is arranged between the driving shaft 2 and the worm wheel 3 and comprises two limiting grooves 9, the two limiting grooves 9 are respectively arranged at the front side and the rear side of the driving shaft 2, limiting plates 10 are arranged inside the limiting grooves 9, the limiting plates 10 are fixedly connected with the inner wall of one side of the worm wheel 3, the worm wheel 3 rotating along with a worm 6 can drive the driving shaft 2 to rotate through the matching of the limiting plates 10 and the limiting grooves 9, a ring plate 4 is arranged at the top of the worm wheel 3, and the ring plate 4 is movably connected with the top of the worm wheel 3 through a ball bearing, the top of the ring plate 4 is provided with a longitudinal lifting assembly, the longitudinal lifting assembly comprises two electric push rods 11, the two electric push rods 11 are respectively arranged at the top parts of the front end and the rear end of the ring plate 4, the bottom end of the electric push rod 11 is fixedly connected with the top part of the ring plate 4, the top end of the electric push rod 11 is fixedly connected with the top part of the inner cavity of the main box body 1, the electric push rod 11 is arranged to conveniently drive the ring plate 4 and the worm wheel 3 to move upwards, so that the worm wheel 3 and the worm 6 can be separated, the worm 6 is in an idle running state, the damage to each other caused by the resistance of the meshing of the worm wheel and the worm 6 is avoided, the front side of the main box body 1 is fixedly communicated with a secondary box body 5, the worm 6 is arranged inside the secondary box body 5, the worm wheel 3 is meshed with the worm 6, the two ends of the worm 6 are respectively movably connected with the inner walls at the two sides of the secondary box body 5 through bearings, one end of the worm 6 is fixedly provided with a speed sensor 7, the fixed controller 8 that is equipped with in 1 inner chamber bottom of the main tank body, fixed alarm 12 and the wireless network card 13 of being equipped with in 1 inner chamber bottom of the main tank body, alarm 12 is located wireless network card 13 one side, starts alarm 12 through controller 8 and carries out the early warning to setting through wireless network card 13 transmits overload information, suggestion user equipment running state, follow the fixed motor 14 that is equipped with in 5 one side of the box, 14 output of motor run through from box 5 and with 6 one end fixed connection of worm, order about worm 6 through motor 14 and rotate, then drive the worm wheel 3 rotation of meshing by worm 6.

The implementation scenario is specifically as follows: monitoring the rotating speed of the worm 6 through the speed sensor 7, transmitting monitoring information to the controller 8, judging the monitoring information by the controller 8, when the overload condition appears in abnormal speed, the controller 8 starts the electric push rod 11 to drive the ring plate 4 and the worm wheel 3 to move upwards, further separating the worm wheel 3 from the worm 6, idling the worm 6, preventing the worm wheel 3 and the worm 6 from being engaged with each other, avoiding the damage to the worm wheel 3 and the worm 6 caused by overload, meanwhile, the controller 8 starts the alarm 12 to give an early warning, and through the setting of the wireless network card 13, transmitting the overload information, prompting the running state of the user equipment, the whole structure is simple to operate, the use is convenient, protective measures can be timely carried out according to the overload condition, the protection to the worm wheel 3 and the worm 6 is improved, and meanwhile, the overload condition of the user equipment can also be warned.

Referring to the attached

drawings

1, 2, 3 and 5 in the specification, in the overload protection type helical-tooth worm and gear speed reducer of the embodiment, the main box body 1 and the slave box body 5 are fixedly provided with a plurality of radiating fins 15, the radiating fins 15 are respectively and uniformly distributed outside the main box body 1 and the slave box body 5 at intervals, through the arrangement of the radiating fins 15, the radiating efficiency of the main box body 1 and the slave box body 5 can be improved, the heat in the main box body 1 and the slave box body 5 is prevented from being dissipated, and further, the damage of overheating to components in the main box body 1 and the slave box body 5 can be avoided.

And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. Overload protection type skewed tooth worm gear speed reducer, including the main tank body (1), its characterized in that: the improved main box body structure is characterized in that a driving shaft (2) is arranged inside the main box body (1), the top end and the bottom end of the driving shaft (2) are respectively movably connected with the top of an inner cavity of the main box body (1) and the bottom of the inner cavity of the main box body (1) through bearings, a worm wheel (3) is sleeved outside the driving shaft (2), a connecting assembly is arranged between the driving shaft (2) and the worm wheel (3), a ring plate (4) is arranged at the top of the worm wheel (3), the ring plate (4) is movably connected with the top of the worm wheel (3) through a ball bearing, a longitudinal lifting assembly is arranged at the top of the ring plate (4), a slave box body (5) is fixedly communicated with the front side of the main box body (1), a worm (6) is arranged inside the slave box body (5), the worm wheel (3) is meshed with the worm (6), the two ends of the worm (6) are respectively movably connected with the inner walls of the two sides of the slave box body (5) through bearings, a speed sensor (7) is fixedly arranged at the top of one end of the worm (6), the bottom of the inner cavity of the main box body (1) is fixedly provided with a controller (8).

2. The overload protection type helical worm gear reducer according to claim 1, wherein: coupling assembling includes two spacing grooves (9), and both sides around drive shaft (2) are seted up respectively in two spacing grooves (9), spacing groove (9) inside is equipped with limiting plate (10), limiting plate (10) and worm wheel (3) one side inner wall fixed connection.

3. The overload protection type helical worm gear reducer according to claim 1, wherein: vertical lifting subassembly includes two electric putter (11), and both ends top around crown plate (4) are located respectively in two electric putter (11), electric putter (11) bottom and crown plate (4) top fixed connection, electric putter (11) top and main tank body (1) inner chamber top fixed connection.

4. The overload protection type helical worm gear reducer according to claim 1, wherein: the alarm device is characterized in that an alarm (12) and a wireless network card (13) are fixedly arranged at the bottom of an inner cavity of the main box body (1), and the alarm (12) is located on one side of the wireless network card (13).

5. The overload protection type helical worm gear reducer according to claim 1, wherein: the motor (14) is fixedly arranged on one side of the slave box body (5), and the output end of the motor (14) penetrates through the slave box body (5) and is fixedly connected with one end of the worm (6).

6. The overload protection type helical worm gear reducer according to claim 1, wherein: the main box body (1) and the slave box body (5) are fixedly provided with a plurality of radiating fins (15), and the radiating fins (15) are uniformly distributed outside the main box body (1) and the slave box body (5) at intervals respectively.