CN112196962A

CN112196962A - Hand-cranking device of electric mechanism

Info

Publication number: CN112196962A
Application number: CN202010999630.XA
Authority: CN
Inventors: 冶振; 关文卿; 许海善; 杨馥宁
Original assignee: Lanzhou Wanli Aviation Electromechanical Co ltd
Current assignee: Lanzhou Wanli Aviation Electromechanical Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-01-08

Abstract

The invention provides a hand-cranking device of an electric mechanism, which comprises: a gear shaft (2-3), a gear (2-6) and a sawtooth sleeve (2-10); the gear shaft (2-3) is connected with a hand tool and a gear (2-6); the gear (2-6) is meshed with a gear on a transmission link of the electric mechanism, and the gear (2-6) rotates to drive the gear on the transmission link of the electric mechanism to rotate; the sawtooth sleeve (2-10) is fixed on the shell of the electric mechanism and sleeved on the gear shaft (2-3); when the electric mechanism is not in failure, the binding surfaces of the sawtooth sleeves (2-10) and the gears (2-6) are meshed through sawteeth; when the electric mechanism is in failure, the gear (2-6) is driven to be separated from the sawtooth sleeve (2-10) by the axial pushing of the hand tool. The invention is directly matched and sleeved in a transmission chain of the electric mechanism, and when the electric mechanism can not obtain the driving force of the motor, the device can be used for manually replacing the electric mechanism. When in use, only a hand tool is needed to be matched, the operation is simple, and the reliability is high.

Description

Hand-cranking device of electric mechanism

Technical Field

The invention belongs to the field of structural design of electric mechanisms, and particularly relates to a hand-cranking device of an electric mechanism.

Background

The electric mechanism is used for driving various mechanical products in modern industry, and the power of the motor is transmitted to the execution part through the speed reducer of the electric mechanism, so that various mechanical actions are completed. Has wide application in various types of mechanical equipment. However, once the motor fails, it cannot be used.

Disclosure of Invention

The purpose of the invention is: the invention provides a hand-cranking device of an electric mechanism, which realizes a hand-cranking function when parts need to be hand-cranked after power failure by adopting the hand-cranking device, and can realize the extension or retraction of an output shaft by adopting a hand-cranking mode when a motor cannot normally supply power to work.

The technical scheme of the invention is as follows: the invention provides a hand cranking device of an electric mechanism, which is arranged in the electric mechanism and comprises: a gear shaft 2-3, a gear 2-6 and a sawtooth sleeve 2-10;

the first end of the gear shaft 2-3 is used for being connected with a hand tool arranged outside the electric mechanism, the second end of the gear shaft 2-3 is connected with the gear 2-6 through splines, the hand tool drives the gear shaft 2-3 to rotate, and the gear shaft 2-3 drives the gear 2-6 to rotate;

the gears 2-6 are meshed with gears on the transmission link of the electric mechanism, and the gears 2-6 rotate to drive the gears on the transmission link of the electric mechanism to rotate;

the sawtooth sleeve 2-10 is fixed on the shell of the electric mechanism and sleeved on the gear shaft 2-3;

when the electric mechanism is not in failure, the sawtooth sleeves 2-10 are meshed with the abutting surfaces of the gears 2-6 through sawteeth; when the electric mechanism is in failure, the gear 2-6 is pushed axially by the hand tool to drive the gear 2-6 to be separated from the sawtooth sleeve 2-10.

Optionally, the hand cranking device further comprises: a pair of bearings 2-7 and springs 2-8;

the pair of bearings 2-7 are arranged at two ends of the inner ring of the sawtooth sleeve 2-10, the spring 2-8 is arranged between the pair of bearings 2-7, and the pair of bearings 2-7 and the spring 2-8 are sleeved on the gear shaft 2-3;

one end of the spring 2-8 is fixedly connected with the gear shaft 2-3.

Optionally, the hand cranking device further comprises: a pair of spring collars 2-5;

and spring retainer rings 2-5 are respectively arranged at the contact positions of the springs 2-8 and the pair of bearings 2-7.

Optionally, the end face of the second end of the gear shaft 2-3 is provided with a limit boss for preventing the gear 2-6 from falling off from the second end of the gear shaft 2-3.

Optionally, the hand cranking device further comprises: 2-4 parts of an end cover;

the end cover 2-4 is sleeved on the gear shaft 2-3 and arranged on one side, far away from the gear 2-6, of the sawtooth sleeve 2-10.

Optionally, the hand cranking device further comprises: an end cover 2-1 and a sleeve 2-2;

the sleeve 2-2 is connected with the first end of the gear shaft 2-3 and penetrates through a shell of the electric mechanism;

when the electric mechanism is not in failure, the end cover 2-1 is arranged outside the shell of the electric mechanism and closes the sleeve 2-2; when the electric mechanism is in failure, the end cover 2-1 is removed, and the sleeve 2-2 is connected with a hand tool arranged outside the electric mechanism.

Optionally, the hand tool comprises: an output shaft 1-2, a pair of bearings 1-3, a shell 1-4, a crank 1-6, an input shaft 1-12, a pair of spur gears 1-13 and a pair of bearings 1-14;

a pair of bearings 1-3 and a pair of bearings 1-14 are fixedly arranged in the shell 1-4, and a pair of spur gears 1-13 are arranged between the pair of bearings 1-3 and the pair of bearings 1-14;

the input shaft 1-12 and the output shaft 1-2 are respectively meshed with a pair of straight gears 1-13, the crank 1-6 is connected with the input shaft 1-12 through a key, the crank 1-6 drives the input shaft 1-12 to rotate, and the input shaft 1-12 drives the output shaft 1-2 to rotate;

the output shaft 1-2 is used for connecting the first end of the gear shaft 2-3 and driving the gear shaft 2-3 to rotate.

Optionally, the hand tool further comprises: 1-11 parts of spring steel balls;

the spring steel balls 1-11 are arranged on the input shaft 1-12 and used for clamping the crank handle 1-6 to prevent the crank handle 1-6 from falling off from the input shaft 1-12.

Optionally, the hand tool further comprises: 1-7 parts of a cotter pin, 1-8 parts of a nut, 1-9 parts of a screw and 1-10 parts of a handle;

the screw 1-9 is arranged in the handle 1-10 in a penetrating way to connect the handle 1-10 and the crank 1-6 together;

the nut 1-8 is sleeved on the screw 1-9 and is arranged on one side of the crank 1-6 far away from the handle 1-10;

the bolts 1-9 are provided with split pins 1-7 in a penetrating way and used for clamping the nuts 1-8 and preventing the nuts 1-8 from falling off from the bolts 1-9.

The invention has the advantages that: the invention provides a hand-cranking device of an electric mechanism, which is directly matched in a transmission chain of the electric mechanism, and can be used for manually replacing the electric mechanism when the electric mechanism cannot obtain the driving force of a motor. When in use, only a hand tool is needed to be matched, the operation is simple, and the reliability is high.

Drawings

FIG. 1 is a schematic view of the hand cranking device of the electric mechanism provided by the present invention;

FIG. 2 is a first schematic structural view of the hand tool provided by the present invention;

FIG. 3 is a second schematic structural view of the hand tool provided by the present invention;

description of reference numerals:

1-sealing cover; 1-2-axis; 1-3-bearings; 1-4-housing; 1-5-end cap;

1-6-crank; 1-7-cotter pin; 1-8-nut; 1-9-screws; 1-10-handle;

1-11-spring steel balls; 1-12-axis; 1-13-spur gear; 1-14-bearings;

2-1-end cap; 2-sleeve; 2-3-gear shaft; 2-4-end cap; 2-5-spring retainer ring;

2-6-gear; 2-7-bearings; 2-8-spring; 2-9-screws; 2-10-sawtooth sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1-3, the present invention provides a hand cranking device with an electric mechanism, which comprises a gear shaft 2-3, a sawtooth sleeve 2-10, a gear 2-6, a spring 2-8 and an end cap 2-4.

The end cover 2-1 seals the sleeve 2-2 arranged on the gear shaft 2-3, the gear shaft 2-3 is meshed with the gear 2-6, the right end face of the gear shaft 2-3 is provided with a limit boss for limiting the right end face of the gear 2-6, the sawteeth on the left end face of the gear 2-6 are meshed with the sawteeth of the sawtooth sleeve 2-10, and the sawtooth sleeve 2-10 and the end cover 2-4 are connected into a whole through a screw 2-9. Two ends of the inner ring of the sawtooth sleeve 2-10 are provided with a pair of bearings 2-7, a pair of spring retainer rings 2-5 are arranged between the two bearings 2-7, a spring 2-8 is arranged in the middle of the spring retainer ring 2-5, and the bearing 2-7 can be axially limited by the spring retainer ring 2-5 under the action of the spring 2-8.

The output gear 2-6 of the hand cranking device is connected with a gear (only can be used as a non-motor gear) on a transmission link of the electric mechanism, and when an execution part works normally, the tooth cog (sawtooth) on the end surface of the gear 2-6 is meshed with the sawtooth of the sawtooth sleeve 2-10 to fix the gear on the transmission link of the external electric mechanism; when the part needs to be hand-operated after being powered off, the gear shaft 2-3 is pressed to compress the spring, the tooth cog 2-6 of the output gear of the hand-operated device is separated from the sawtooth of the sawtooth sleeve 2-10, and the crank 1-6 is rotated, so that the output gear 2-6 of the hand-operated device drives the gear on the transmission link of the external electric mechanism to rotate, and the hand-operated function is realized.

When the hand-operated device works, an operator holds the handle 1-10 and shakes the crank handle 1-6 circumferentially around the shaft 1-12, input torque is transmitted to the shaft 1-12 through the crank handle 1-5, the gear 1-13 on the shaft 1-12 transmits the torque to the shaft 1-2, the shaft 1-2 is matched with the sleeve 2-2 in the hand-operated device, and the torque is finally transmitted to the gear shaft 2-3 of the hand-operated device. After the whole shaking process is finished, the cotter pin 1-7 is pulled out, the nut 1-8 is screwed off, the handle 1-10 and the screw 1-9 are disassembled, and the crank 1-6 is taken off from the shaft 1-12 when the spring steel ball 1-11 in the original state is pressed to the compressed state. Finally, the rest of the hand tool together with the housing 1-1 is removed from the sleeve 2-2 of the hand device engaged therewith to complete the hand tool removal.

The manual working principle of the product in the using process is as follows: when the motor cannot work normally, the hand tool is assembled, the crank 1-6 is rotated clockwise or anticlockwise, the crank 1-6 drives the shaft 1-12 to rotate through the key, and further drives the gear 1-13 on the shaft 1-12 to rotate, so that the torque is transmitted to the shaft 1-2, and the shaft 1-2 is matched with a sleeve 2-2 interface of a hand device arranged in a product; an axial force is applied to the hand-operated device through a hand-operated tool in the matching process, the springs 2-8 are compressed by the gear shaft 2-3 of the hand-operated device, so that the sawtooth sleeve 2-10 is separated from the end face teeth of the gear 2-6, the gear 2-6 transmits a manual moment to the gear on the transmission link of the original electric mechanism, the manual principle is realized, when the hand-operated starting is not needed, the axial force of the hand-operated tool is removed, the limiting boss at the shaft end of the gear shaft 2-3 drives the gear 2-6 to reset along with the resetting of the gear shaft 2-3 under the action of the springs 2-8, so that the output gear 2-6 is meshed with the sawtooth sleeve 2-10 again, the axial rotation cannot be performed, and the hand-operated.

Finally, it should be noted that the above examples are only illustrative of the implementation of the present invention and are not limiting. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical proposal described in the embodiments can be modified, or some technical features can be equally replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the present invention, and are intended to be included within the scope of the appended claims.

Claims

1. The hand cranking device of the electric mechanism is characterized in that the hand cranking device is arranged in the electric mechanism and comprises: a gear shaft (2-3), a gear (2-6) and a sawtooth sleeve (2-10);

the first end of the gear shaft (2-3) is used for being connected with a hand tool arranged outside the electric mechanism, the second end of the gear shaft (2-3) is connected with the gear (2-6) through a spline, the hand tool drives the gear shaft (2-3) to rotate, and the gear shaft (2-3) drives the gear (2-6) to rotate;

the gears (2-6) are meshed with gears on a transmission link of the electric mechanism, and the gears (2-6) rotate to drive the gears on the transmission link of the electric mechanism to rotate;

the sawtooth sleeve (2-10) is fixed on the shell of the electric mechanism and sleeved on the gear shaft (2-3);

when the electric mechanism is not in failure, the contact surfaces of the sawtooth sleeves (2-10) and the gears (2-6) are meshed through sawteeth; when the electric mechanism is in failure, the gear (2-6) is pushed axially by the hand tool to drive the gear (2-6) to be separated from the sawtooth sleeve (2-10).

2. The hand cranking device of claim 1, further comprising: a pair of bearings (2-7) and springs (2-8);

the pair of bearings (2-7) are arranged at two ends of an inner ring of the sawtooth sleeve (2-10), the springs (2-8) are arranged between the pair of bearings (2-7), and the pair of bearings (2-7) and the springs (2-8) are sleeved on the gear shaft (2-3);

one end of the spring (2-8) is fixedly connected with the gear shaft (2-3).

3. The hand cranking device of claim 2, further comprising: a pair of spring collars (2-5);

and the contact positions of the springs (2-8) and the pair of bearings (2-7) are respectively provided with a spring retainer ring (2-5).

4. The hand cranking device according to claim 1, wherein the end surface of the second end of the gear shaft (2-3) is provided with a stop boss for preventing the gear (2-6) from falling off the second end of the gear shaft (2-3).

5. The hand cranking device of claim 1, further comprising: end caps (2-4);

the end covers (2-4) are sleeved on the gear shafts (2-3) and arranged on one sides of the sawtooth sleeves (2-10) far away from the gears (2-6).

6. The hand cranking device of claim 1, further comprising: an end cover (2-1) and a sleeve (2-2);

the sleeve (2-2) is connected with the first end of the gear shaft (2-3) and penetrates through the shell of the electric mechanism;

when the electric mechanism is not in failure, the end cover (2-1) is arranged outside the shell of the electric mechanism and closes the sleeve (2-2); when the electric mechanism is in fault, the end cover (2-1) is detached, and the sleeve (2-2) is connected with a hand tool arranged outside the electric mechanism.

7. The hand cranking device of claim 1, wherein the hand tool comprises: the device comprises an output shaft (1-2), a pair of bearings (1-3), a shell (1-4), a crank (1-6), an input shaft (1-12), a pair of spur gears (1-13) and a pair of bearings (1-14);

a pair of bearings (1-3) and a pair of bearings (1-14) are fixedly arranged in the shell (1-4), and a pair of spur gears (1-13) are arranged between the pair of bearings (1-3) and the pair of bearings (1-14);

the input shafts (1-12) and the output shafts (1-2) are respectively meshed with a pair of straight gears (1-13), the crank (1-6) is connected with the input shafts (1-12) through a key, the crank (1-6) drives the input shafts (1-12) to rotate, and the input shafts (1-12) drive the output shafts (1-2) to rotate;

the output shaft (1-2) is used for being connected with the first end of the gear shaft (2-3) and driving the gear shaft (2-3) to rotate.

8. The hand cranking device of claim 1, wherein the hand tool further comprises: spring steel balls (1-11);

the spring steel balls (1-11) are arranged on the input shaft (1-12) and used for clamping the crank (1-6) to prevent the crank (1-6) from falling off from the input shaft (1-12).

9. The hand cranking device of claim 1, wherein the hand tool further comprises: the opening pin (1-7), the nut (1-8), the screw (1-9) and the handle (1-10);

the screw (1-9) penetrates through the handle (1-10) to connect the handle (1-10) and the crank (1-6) together;

the nut (1-8) is sleeved on the screw (1-9) and arranged on one side of the crank (1-6) far away from the handle (1-10);

the screw (1-9) is provided with an opening pin (1-7) in a penetrating way and used for clamping the nut (1-8) to prevent the nut (1-8) from falling off from the screw (1-9).