CN212389673U

CN212389673U - Large-torque gear over-twisting protector

Info

Publication number: CN212389673U
Application number: CN202021505775.1U
Authority: CN
Inventors: 闫明祥; 曹旭东; 姜在赢; 付冠平
Original assignee: Anshan Sinlor Industrial Equipment Co
Current assignee: Anshan Sinlor Industrial Equipment Co
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-01-22
Anticipated expiration: 2030-07-27

Abstract

The utility model discloses a big moment of torsion gear is crossed and is turned round protector, including axle core, cooperation key, clutch skewed tooth end, clutch link end, go up the dish spring, packing ring, retaining ring down, it has the keyway to open on the axle core, has inlayed the cooperation key in the keyway, the clutch link end is being connected through the cooperation key cooperation on the axle core, the even epaxial end symmetry cooperation of upper end of clutch has clutch skewed tooth end, the oblique tooth end cup joint of clutch is in the axle core, clutch skewed tooth end, clutch link are served both ends joint about there is the dish spring, lower dish spring, go up the dish spring, the dish spring is the disc form down, it is equipped with the packing ring to go up dish spring end, the upper strata of packing ring is equipped with the retaining ring. The utility model discloses an inclined plane of end face tooth can make clutch output axial force, and when axial force was greater than both sides dish spring pressure, the clutch detachable realized the motor idle running, and protection motor and flank of tooth do not receive the damage.

Description

Large-torque gear over-twisting protector

Technical Field

The utility model relates to a gear equipment technical field, in particular to big moment of torsion gear excessively turns round protector.

Background

The structure of the existing magnetic drill is mainly characterized in that a straight gear and a helical gear are used as main components, different modes are adopted according to different designs, but no matter the working modes of the straight gear and the helical gear are adopted, mechanical over-torsion protection is not provided, the electric control is realized, specifically, the overcurrent protection is realized, when the output torque of a motor is overlarge, the current of the motor rises and the power is cut off, because the gear rotating at high speed generates inertia impact, the motor and the tooth surface are damaged, the service life is influenced, and meanwhile, the working efficiency is reduced.

In view of this, it is urgently needed to provide a structure of a large-torque gear over-twisting protector, so as to meet the requirements of engineering use, and a mechanical over-twisting protection is adopted, so that a motor and a working tooth surface are effectively protected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a big moment of torsion gear is crossed and is turned round protector, including axle core, cooperation key, clutch skewed tooth end, clutch link end, go up the dish spring, packing ring, retaining ring down, it has the keyway to open on the axle core, and it has the cooperation key to inlay in the keyway, clutch link end is being connected through the cooperation key cooperation on the axle core, the even epaxial end symmetry cooperation of end of clutch has clutch skewed tooth end, the clutch skewed tooth end cup joints the axle core, clutch skewed tooth end, clutch link both ends joint about the axle end have the dish spring, dish spring down, go up the dish spring, the dish spring is the disc form down, it is equipped with the packing ring to go up the dish spring end, the upper strata of packing ring is equipped with the retaining ring.

Furthermore, the gasket is directly sleeved on the shaft core, an annular fixing groove is formed in the circumferential surface of the shaft core positioned at the upper part of the gasket, and a retainer ring is clamped and embedded in the fixing groove.

Further, the retainer ring is in a semi-circular shape with a semi-open ring.

Furthermore, the bottoms of the two sides of the upper disc spring and the lower disc spring are arched outwards from the central position and form an angle with the horizontal flat surfaces of the upper disc spring and the lower disc spring.

Furthermore, the center of the bottom end face of the lower disc spring is directly clamped at the boss of the shaft core, and the upper end face of the lower disc spring is in contact with the lower end face of the shaft end of the clutch.

Furthermore, the bottom surface of the upper disc spring is directly contacted with the upper end surface of the inclined tooth end of the clutch, and the center arching position of the upper end surface of the upper disc spring directly supports against the gasket.

Furthermore, sawteeth are fixedly arranged on the circumference of the upper end face of the connecting shaft end of the clutch, and the sawteeth are curved teeth.

Furthermore, the circumference of the lower end face of the clutch bevel gear end is fixedly provided with sawteeth, and the sawteeth are curved face teeth.

Furthermore, the curvature radian of the curved surface teeth arranged on the upper end surface of the clutch connecting shaft end is matched with the curvature radian of the curved surface teeth arranged on the lower end surface of the clutch skewed tooth end.

Furthermore, the plane where the curved surface tooth crest on the clutch skewed tooth end and the clutch connecting shaft end is located is parallel to the radius of the clutch skewed tooth end and the clutch connecting shaft end.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an inclined plane of end face tooth can make clutch output axial force, and when axial force was greater than both sides dish spring pressure, the clutch detachable realized the motor idle running, and protection motor and flank of tooth do not receive the damage.

Drawings

FIG. 1 is a general schematic view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a perspective view of the clutch helical teeth end of the present invention;

FIG. 4 is a plan view of the helical end of the clutch of the present invention;

3 FIG. 3 5 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 the 3 present 3 invention 3; 3

Fig. 6 is a partial enlarged view of the position I of the present invention.

Detailed Description

The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

As shown in fig. 1-6, a large-torque gear over-twisting protector comprises a shaft core 1, a matching key 2, a clutch helical tooth end 3, a clutch coupling end 4, an upper disc spring 5, a lower disc spring 6, a gasket 7 and a retainer ring 8, wherein a key groove is formed in the shaft core 1, the key groove is internally embedded with the matching key 2, the shaft core 1 is connected with the clutch coupling end 4 in a matching way through the matching key 2, the clutch helical tooth end 3 is symmetrically matched with the upper end of the clutch coupling end 4, the clutch helical tooth end 3 is sleeved on the shaft core 1, the upper disc spring 5 and the lower disc spring 6 are clamped at the upper end and the lower end of the clutch helical tooth end 3 and the clutch coupling end 4, the upper disc spring 5 and the lower disc spring 6 are in a disc shape, the gasket 7 is arranged at the end of the upper disc spring 5, and the retainer ring 8 is arranged at the upper layer of the gasket 7.

In this embodiment, the gasket 7 is directly sleeved on the shaft core 1, an annular fixing groove is formed on the circumferential surface of the shaft core 1 at the upper part of the gasket 7, and a retainer ring 8 is clamped and embedded in the fixing groove.

In this embodiment, the retainer ring 8 has a semicircular shape with a half-open ring.

In this embodiment, the bottom of the two sides of the upper disc spring 5 and the lower disc spring 6 are arched outwards from the center position, and are arranged at an angle with the horizontal bottom surface of the upper disc spring 5 and the lower disc spring 6.

In this embodiment, the center of the bottom end surface of the lower disc spring 6 is directly clamped on the boss of the shaft core 1, and the upper end surface of the lower disc spring contacts with the lower end surface of the clutch coupling end 4.

In this embodiment, the bottom surface of the upper disc spring 5 directly contacts with the upper end surface of the clutch helical teeth end 3, and the center arched position of the upper end surface of the upper disc spring 5 directly abuts against the washer 7.

In this embodiment, the circumference of the upper end surface of the clutch coupling end 4 is fixedly provided with saw teeth, and the saw teeth are curved teeth.

In this embodiment, the circumference of the lower end surface of the clutch helical tooth end 3 is fixedly provided with saw teeth, and the saw teeth are curved surface teeth.

In this embodiment, the curvature radian of the curved teeth on the upper end surface of the clutch coupling end 4 is matched with the curvature radian of the curved teeth on the lower end surface of the clutch helical teeth end 3.

In the embodiment, the plane where the curved surface tooth crest on the clutch helical tooth end 3 and the clutch connecting shaft end 4 is located is parallel to the radius of the clutch helical tooth end 3 and the clutch connecting shaft end 4.

The inclined plane of the end face teeth can enable the clutch to produce axial force, and when the axial force is larger than the pressure of the disc springs on the two sides, the clutch can be separated, so that idling of the motor is realized, and the motor and the tooth surface are protected from being damaged.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a big moment of torsion gear is crossed turns round protector which characterized in that: comprises a shaft core (1), a matching key (2), a clutch bevel gear end (3), a clutch connecting shaft end (4), an upper disc spring (5), a lower disc spring (6), a gasket (7) and a retainer ring (8), a key groove is arranged on the shaft core (1), a matching key (2) is embedded in the key groove, the shaft core (1) is connected with a clutch connecting shaft end (4) in a matching way through a matching key (2), the upper end of the clutch connecting shaft end (4) is symmetrically matched with a clutch bevel gear end (3), the clutch bevel gear end (3) is sleeved on the shaft core (1), the upper and lower ends of the clutch bevel gear end (3) and the clutch connecting shaft end (4) are clamped with an upper disc spring (5) and a lower disc spring (6), the upper disc spring (5) and the lower disc spring (6) are in a disc shape, a gasket (7) is arranged at the end of the upper disc spring (5), and a retainer ring (8) is arranged on the upper layer of the gasket (7).

2. The protector for over-twisting of a high-torque gear according to claim 1, wherein the gasket (7) is directly sleeved on the shaft core (1), a ring-shaped fixing groove is formed on the circumferential surface of the shaft core (1) at the upper part of the gasket (7), and the retainer ring (8) is clamped and embedded in the fixing groove.

3. A high torque gear over-torque protector according to claim 1, characterized in that the retainer ring (8) is semi-circular in shape with a half-open ring.

4. The large-torque gear over-twisting protector as claimed in claim 1, wherein the bottoms of the two sides of the upper disc spring (5) and the lower disc spring (6) are arched outwards from the central position and are arranged at an angle with the horizontal bottom surfaces of the upper disc spring (5) and the lower disc spring (6).

5. The high-torque gear over-twisting protector as claimed in claim 4, wherein the center of the bottom end face of the lower disc spring (6) is directly clamped at the boss of the shaft core (1), and the upper end face of the lower disc spring is in contact with the lower end face of the clutch connecting shaft (4).

6. A high torque gear over-torque protector according to claim 4 wherein the bottom surface of the upper disc spring (5) is in direct contact with the upper end surface of the clutch skewed tooth end (3) and the centrally arched position of the upper end surface of the upper disc spring (5) is in direct contact with the washer (7).

7. A high-torque gear over-twisting protector as claimed in claim 5, wherein the circumference of the upper end face of the clutch connecting shaft end (4) is fixedly provided with saw teeth, and the saw teeth are curved teeth.

8. A high-torque gear over-twisting protector as claimed in claim 6, characterized in that the circumference of the lower end face of the clutch bevel gear end (3) is fixedly provided with saw teeth, and the saw teeth are curved teeth.

9. The protector for over-twisting of large-torque gear according to claim 7, wherein the curvature of the curved teeth formed on the upper end face of the clutch connecting shaft end (4) is matched with the curvature of the curved teeth formed on the lower end face of the clutch helical teeth end (3).

10. The high-torque gear over-twisting protector according to claim 9, wherein the plane of the curved crest on the clutch skewed tooth end (3) and the clutch connecting shaft end (4) is parallel to the radius of the clutch skewed tooth end (3) and the clutch connecting shaft end (4).