CN214838338U - Automatic gear shifting device of gear reducer - Google Patents

Abstract

The utility model discloses a gear reducer automatic gear shifting device, including the casing, its characterized in that: be provided with the worm wheel in the casing, with the worm that the worm wheel matches is connected on the work of motor is served, worm wheel and pivot key-type connection, and the pivot is then rotated between bearing and the casing through its bottom and is connected, the top of pivot is connected with the carousel through gland nut to still be provided with the dish spring between gland nut and carousel, be provided with the trigger block on the carousel, be provided with first travel switch, second travel switch and third travel switch in the casing, the trigger block can trigger above-mentioned three travel switch respectively, it has the travel control dish to go back the key-type connection in the pivot, be provided with spacing arch on the outer circumference of travel control dish, then fixed be provided with in the casing can with the stopper of spacing protruding contact.

Description

Automatic gear shifting device of gear reducer

Technical Field

The utility model relates to a speed reducer field, especially a gear reducer automatic gear shifting device.

Background

The gear reducer is a mechanical transmission device in various fields of national economy. Traditional hydro-cylinder automatic gear shifting device is bulky, and the installation of being not convenient for, signal feedback is relatively untimely moreover, is unfavorable for carrying out automated control to it. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve the above-mentioned not enough that prior art exists, provide a simple structure, design benefit, rationally distributed, small in size, the action is smooth, reliable and be convenient for automated control's gear reducer automatic gear shifting device.

The technical solution of the utility model is that: the utility model provides a gear reducer automatic gear shifting device, includes casing 1, its characterized in that: the worm wheel 2 is arranged in the shell 1, the worm 3 matched with the worm wheel 2 is connected to the working end of the motor 4, the worm wheel 2 is in key connection with the rotating shaft 5, the rotating shaft 5 is in rotary connection with the shell 1 through the bearing 6 at the bottom of the rotating shaft 5, the top end of the rotating shaft 5 is connected with the rotary table 7 through the compression nut 23, the disc spring 8 is further arranged between the compression nut 23 and the rotary table 7, the rotary table 7 is provided with the trigger block 9, the shell 1 is internally provided with the first stroke switch 10, the second stroke switch 11 and the third stroke switch 12, the trigger block 9 can respectively trigger the three stroke switches, the rotating shaft 5 is in key connection with the stroke control disc 13, the outer circumference of the stroke control disc 13 is provided with the limit bulge 14, and the shell 1 is fixedly provided with the limit block 15 which can be in contact with the limit bulge 14,

the bottom of pivot 5 is provided with round pin axle 16, round pin axle 16 rotates to be connected in slider 17, slider 17 sliding connection sets up in the spout 19 on shift fork support 18, and shift fork support 18's bottom is then through bolt and uide bushing 20 fixed connection, uide bushing 20 slides and cup joints on uide bushing 21, uide bushing 21 set up the bottom at casing 1, simultaneously spout 19 and uide bushing 21 are mutually perpendicular on the space, still are connected with shift fork 22 on uide bushing 20, shift fork 22 can drive the axial float of the tooth of shifting of speed reducer along its pivot of place.

Compared with the prior art, the utility model, have following advantage:

the automatic gear shifting device of the gear reducer in the structural form is simple in structure, ingenious in design and reasonable in layout, and is designed to solve various problems existing in the working process of the traditional automatic gear shifting device of the gear reducer. The gear reducer is driven to rotate by the worm gear and worm transmission pair, on one hand, the rotation of the rotating shaft is converted into the reciprocating linear motion of the shifting fork by utilizing mechanisms such as a pin shaft, a connecting block and a guide sleeve, and on the other hand, the rotary disc arranged on the rotating shaft can trigger different travel switches when the shifting fork is in different states, so that the control system can master and control the current state of the gear reducer. The whole volume of the device is compact, so that the device does not need to occupy too large space, is convenient to realize automatic control and operation, has smooth and reliable whole action, simple manufacturing process and low manufacturing cost, has multiple advantages, is particularly suitable for popularization and application in the field, and has very wide market prospect.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

Fig. 3 is a top view of an embodiment of the present invention.

Detailed Description

The following description will explain embodiments of the present invention with reference to the drawings. As shown in fig. 1, 2, and 3: an automatic gear shifting device of a gear reducer comprises a shell 1 serving as a base, wherein a worm wheel 2 is arranged in the shell 1, a worm 3 matched with the worm wheel 2 is connected to a working end of a motor 4, the worm wheel 2 is in key connection with a rotating shaft 5, the rotating shaft 5 is in rotary connection with the shell 1 through a bearing 6 at the bottom of the rotating shaft 5, the top end of the rotating shaft 5 is connected with a rotary table 7 through a compression nut 23, a disc spring 8 is further arranged between the compression nut 23 and the rotary table 7, a trigger block 9 is arranged on the rotary table 7, a first travel switch 10, a second travel switch 11 and a third travel switch 12 are arranged in the shell 1, the trigger block 9 can respectively trigger the three travel switches, a travel control disc 13 is in key connection with the rotating shaft 5, and a limit bulge 14 is arranged on the outer circumference of the travel control disc 13, a limiting block 15 capable of contacting with the limiting bulge 14 is fixedly arranged in the shell 1,

the bottom of pivot 5 is provided with round pin axle 16, round pin axle 16 rotates to be connected in slider 17, slider 17 sliding connection sets up in the spout 19 on shift fork support 18, and shift fork support 18's bottom is then through bolt and uide bushing 20 fixed connection, uide bushing 20 slides and cup joints on uide bushing 21, uide bushing 21 set up the bottom at casing 1, simultaneously spout 19 and uide bushing 21 are mutually perpendicular on the space, still are connected with shift fork 22 on uide bushing 20, shift fork 22 can drive the axial float of the tooth of shifting of speed reducer along its pivot of place.

The utility model discloses gear reducer automatic gear shifting device's working process as follows: when gear shifting is required, firstly, the motor 4 is controlled to work to drive the worm 3 to rotate, and further the worm wheel 2 and the rotating shaft 5 are driven to rotate together, when the rotating shaft 5 rotates, on one hand, the pin shaft 16 at the bottom end of the rotating shaft is driven to rotate, so that the sliding block 17 slides in the sliding groove 19 and drives the guide sleeve 20 to do linear motion along the axial direction of the guide shaft 21, and thus the shifting fork 22 arranged on the guide sleeve 20 can move under the driving of the guide sleeve 20, and further different gear switches are shifted, and gear shifting is realized;

when the rotating shaft 5 rotates, the trigger block 9 on the rotating disc 7 rotates along with the rotating shaft, different travel switches are triggered in the movement process respectively, and the three travel switches arranged in the shell 1 correspond to three gears respectively (the first travel switch 10 corresponds to a first gear, the second travel switch 11 corresponds to a second gear, and the third travel switch 12 corresponds to a third gear), that is, when the trigger block 9 triggers the first travel switch 10, the first travel switch 10 sends a signal to the control system, the control system can judge that the shifting fork 22 is in the first gear at the moment, and the rest two gears are analogized;

meanwhile, in the movement process, the stroke control disc 13 also rotates along with the rotating shaft 5, and when the limiting block 15 contacts the limiting protrusion 14 and stops, the rotating shaft 5 cannot continue to rotate.

Claims (1)

1. The utility model provides a gear reducer automatic gear shifting device, includes casing (1), its characterized in that: a worm wheel (2) is arranged in the shell (1), a worm (3) matched with the worm wheel (2) is connected to the working end of a motor (4), the worm wheel (2) is in key connection with a rotating shaft (5), the rotating shaft (5) is in rotary connection with the shell (1) through a bearing (6) at the bottom of the rotating shaft (5), the top end of the rotating shaft (5) is connected with a rotary table (7) through a gland nut (23), a disc spring (8) is further arranged between the gland nut (23) and the rotary table (7), a trigger block (9) is arranged on the rotary table (7), a first travel switch (10), a second travel switch (11) and a third travel switch (12) are arranged in the shell (1), the trigger block (9) can respectively trigger the three travel switches, and a travel control disc (13) is in key connection with the rotating shaft (5), a limiting bulge (14) is arranged on the outer circumference of the stroke control disc (13), a limiting block (15) which can be contacted with the limiting bulge (14) is fixedly arranged in the shell (1),

the bottom of pivot (5) is provided with round pin axle (16), round pin axle (16) are rotated and are connected in slider (17), slider (17) sliding connection is in seting up spout (19) on shift fork support (18), and the bottom of shift fork support (18) is then through bolt and uide bushing (20) fixed connection, uide bushing (20) slip cup joint on uide shaft (21), uide shaft (21) set up the bottom in casing (1), simultaneously spout (19) and uide shaft (21) are at spatial mutually perpendicular, still are connected with shift fork (22) on uide bushing (20), shift fork (22) can drive the axial float of the tooth of shifting of speed reducer along its pivot of place.

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