CN214588555U

CN214588555U - Intelligent rotary limit switch

Info

Publication number: CN214588555U
Application number: CN202120787909.1U
Authority: CN
Inventors: 惠军; 吴彦辉; 钱枳君; 石火海
Original assignee: Shanghai Helang Intelligent Technology Development Co ltd
Current assignee: Shanghai Helang Intelligent Technology Development Co ltd
Priority date: 2021-04-18
Filing date: 2021-04-18
Publication date: 2021-11-02
Anticipated expiration: 2031-04-18

Abstract

The utility model discloses an intelligent rotary limit switch, which comprises an upper cover and a lower cover, wherein the outer ring at the bottom of the upper cover is clamped and connected with the outer ring at the top of the lower cover, a fixed mounting plate is fixedly arranged inside the joint of the lower cover and the upper cover, a switch fixed bottom plate is fixedly arranged at one side of the top of the fixed mounting plate, four cam adjusting mechanisms are fixedly arranged at one end of one side of the top of the switch fixed bottom plate, each cam adjusting mechanism comprises a cam and a cam adjusting worm, and the top of the cam is meshed and connected with the bottom of the cam adjusting worm. The installation is convenient and quick, the damage is not easy, the safety and the reliability are realized, and the use value is high.

Description

Intelligent rotary limit switch

Technical Field

The utility model relates to a limit switch technical field specifically is a rotatory limit switch of intelligence.

Background

The limit switch is also called a travel switch, and can be installed on relatively static objects (such as a fixed frame, a door frame and the like, for short, static objects) or moving objects (such as a traveling crane, a door and the like, for short, animals). When the animal approaches a stationary object, the linkage of the switch drives the contacts of the switch causing the closed contacts to open or the open contacts to close. The circuit and the motor are controlled by the change of the on-off state of the switch contact, so that a certain control purpose is achieved. In general, a limit switch is used to limit the position or stroke of the movement of a machine, so that the moving machine can automatically stop, move in a reverse direction, move at a variable speed, automatically reciprocate, etc. according to a certain position or stroke.

The limit switch in the existing mechanical field mainly collects the height information of an object by two modes:

1. the rotary limit switch output shaft is connected with the encoder through the coupler, height information can be collected in the mode, however, the installation difficulty exists, the external encoder is not protected, and the external encoder is easy to damage.

2, install the potentiometer additionally inside the rotation limit, detect the height position information by detecting the voltage on the end of the sliding rheostat of the potentiometer, this kind of time can also detect the height information, but the potential precision is low, and often need to correct the initial position of the potentiometer, it is troublesome to use.

3. The incremental encoder is additionally arranged in the rotation limit, and when the power supply is cut off, and an object moves due to inertia, partial position information can be lost.

Disclosure of Invention

An object of the utility model is to provide a rotatory limit switch of intelligence to solve the difficult big fragile of the corresponding switch installation that provides in the above-mentioned background art, the low problem of losing positional information easily of potential precision.

In order to achieve the above object, the utility model provides a following technical scheme: an intelligent rotary limit switch comprises an upper cover and a lower cover, wherein the outer ring of the bottom of the upper cover is connected with the outer ring of the top of the lower cover in a clamping manner, a fixed mounting plate is fixedly arranged inside the joint of the lower cover and the upper cover, a switch fixing bottom plate is fixedly arranged on one side of the top of the fixed mounting plate, four cam adjusting mechanisms are fixedly arranged at one end of one side of the top of the switch fixing bottom plate and comprise a cam and a cam adjusting worm, the top of the cam is meshed with the bottom of the cam adjusting worm and is connected with the other end of the top of the switch fixing bottom plate, four micro switches which are sequentially overlapped are fixedly arranged at the other end of one side of the top of the switch fixing bottom plate, a switch fixing cover plate is fixedly arranged at the top of the micro switches, an absolute value encoder is fixedly arranged at the other side of the top of the switch fixing bottom plate, and a circuit board is fixedly arranged at the other side of the top of the fixed mounting plate, the bottom of absolute value encoder rotates and is connected with the encoder connecting axle, the fixed turbine two that is provided with in middle part of encoder connecting axle, one side of fixed mounting panel bottom is rotated and is connected with and connects coaxially, connect coaxial surperficial top-down one side and fix and be provided with gear one, turbine one and gear two, one side meshing of turbine one is connected with the transmission worm, turn right from a left side on the surface of transmission worm and fixedly set up turbine three, E shape jump ring and copper sheathing in proper order.

As an optimized technical scheme of the utility model, four cam adjustment mechanism one side stack is arranged and is set up.

As an optimal technical scheme of the utility model, four micro-gap switch is connected with four cam drive respectively.

As an optimal technical scheme of the utility model, one side of gear one and one side of gear two all the meshing be connected with gear three, and two one side of gear three is the fixed connecting axle that sets up all.

As an optimized technical scheme of the utility model, the front of lower cover is fixed and is provided with two water joint.

As a preferred technical scheme of the utility model, one side of absolute value encoder is fixed and is provided with total line type output interface.

As an optimized technical scheme of the utility model, it corresponds the setting with cam adjustment mechanism to connect coaxially.

Compared with the prior art, the beneficial effects of the utility model are that: the limit switch can be widely applied to related industries such as engineering machinery, port machinery, tower cranes, bridge cranes, portal cranes, industrial electric doors and the like, has the characteristics of multiple functions, high precision, adjustable limit, strong universality, convenient maintenance, installation, use and adjustment and the like, and is convenient and quick to install, not easy to damage, safe, reliable and high in use value.

Drawings

Fig. 1 is a schematic view of the main body disassembly appearance structure of the present invention.

In the figure: 1. an upper cover; 2. a cam adjustment mechanism; 3. a cam adjusting worm; 4. a cam; 5. a first gear; 6. a first turbine; 7. a second gear; 8. a lower cover; 9. a waterproof joint; 10. a switch fixing cover plate; 11. a microswitch; 12. an absolute value encoder; 13. a circuit board; 14. a switch fixing bottom plate; 15. fixing the mounting plate; 16. a second turbine; 17. an encoder connecting shaft; 18. a third turbine; 19. e-shaped clamp springs; 20. a copper sleeve; 21. a drive worm; 22. a connecting shaft; 23. and a third 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, the utility model provides an intelligent rotary limit switch, which comprises an upper cover 1 and a lower cover 8, wherein the outer ring of the bottom of the upper cover 1 is connected with the outer ring of the top of the lower cover 8 in a clamping manner, a fixed mounting plate 15 is fixedly arranged inside the joint of the lower cover 8 and the upper cover 1, a switch fixing bottom plate 14 is fixedly arranged on one side of the top of the fixed mounting plate 15, four cam adjusting mechanisms 2 are fixedly arranged at one end of one side of the top of the switch fixing bottom plate 14, each cam adjusting mechanism 2 comprises a cam 4 and a cam adjusting worm 3, the top of the cam 4 is meshed with the bottom of the cam adjusting worm 3, four micro switches 11 which are sequentially overlapped and arranged are fixedly arranged at the other end of one side of the top of the switch fixing bottom plate 14, a switch fixing cover plate 10 is fixedly arranged at the top of each micro switch 11, an absolute value encoder 12 is fixedly arranged at the other side of the top of the switch fixing bottom plate 14, the other side fixed mounting at fixed mounting panel 15 top has circuit board 13, the bottom of absolute value encoder 12 is rotated and is connected with encoder connecting axle 17, the fixed turbine two 16 that is provided with in middle part of encoder connecting axle 17, one side of fixed mounting panel 15 bottom is rotated and is connected with and connects coaxially, it is coaxial to connect fixed gear one 5 that is provided with in surperficial top-down one side, turbine one 6 and gear two 7, one side meshing of turbine one 6 is connected with drive worm 21, drive worm 21's surface turns right from a left side and fixes turbine three 18 in proper order, E shape jump ring 19 and copper sheathing 20, have the characteristics such as the function is many, the precision is high, spacing adjustable, commonality is strong and maintenance installation and use adjustment are convenient, simple to operate is quick, not fragile, safety and reliability, and high use value.

Preferably, four 2 one sides stack range settings of cam adjustment mechanism, structural design scientific and reasonable.

Preferably, the four micro switches 11 are in transmission connection with the four cams 4 respectively, the transmission mechanism is reasonable in design, and transmission is stable and reliable.

Preferably, one side of the first gear 5 and one side of the second gear 7 are respectively connected with a third gear 23 in a meshed mode, one side of each of the three gears 23 is fixedly provided with a connecting shaft 22, the universality is high, and the later-period maintenance installation and the use and adjustment are convenient.

Preferably, the fixed two water joint 9 that are provided with in front of lower cover 8 can increase the holistic waterproof sealing performance of intelligence rotary switch, certain increase the life of switch.

Preferably, one side of the absolute value encoder 12 is fixedly provided with a bus type output interface, so that data output is more convenient, and installation and use by workers are facilitated.

Preferably, the connection shaft is arranged corresponding to the cam adjusting mechanism 2, and the design is reasonable.

When in specific use, the utility model relates to an intelligent rotary limit switch, take out intelligent rotary limit switch earlier, then can be according to limit switch's normal mounting means to install and use can, this rotary limit switch's encoder adopts absolute value encoder 12, absolute value encoder 12 is equipped with serial output or bus type output interface, each position of absolute value encoder 12 corresponds a definite digital code, therefore its demonstrate only with the start and the end position of measurement, and irrelevant with the middle process of measurement, absolute value encoder 12 is by the uniqueness of every position of mechanical position decision, it need not remember, need not look for the reference point, and need not count always, need know the position when, when just go to read its position, thereby make it have the function many, the precision is high, spacing adjustable, the commonality is strong and maintain installation and use adjustment convenient etc., the installation is convenient and quick, the damage is not easy, the safety and the reliability are realized, and the use value is high.

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 rotatory limit switch of intelligence, includes upper cover (1) and lower cover (8), its characterized in that: the outer ring of upper cover (1) bottom is connected with the outer ring block at lower cover (8) top, the fixed mounting panel (15) that is provided with in the inside of lower cover (8) and upper cover (1) junction, one side at fixed mounting panel (15) top is fixed and is provided with switch PMKD (14), the fixed four cam adjustment mechanism (2) that are provided with of one end of switch PMKD (14) top one side, cam adjustment mechanism (2) include cam (4) and cam regulation worm (3), the top of cam (4) is connected with the bottom meshing of cam regulation worm (3), the other end of switch PMKD (14) top one side is fixed and is provided with four micro-gap switch (11) of stacking arrangement in proper order, the top of micro-gap switch (11) is fixed and is provided with switch fixed apron (10), the opposite side fixed mounting at switch PMKD (14) top has absolute value encoder (12), fixed mounting panel (15) top opposite side fixed mounting has circuit board (13), the bottom of absolute value encoder (12) is rotated and is connected with encoder connecting axle (17), the fixed turbine two (16) that is provided with in middle part of encoder connecting axle (17), one side of fixed mounting panel (15) bottom is rotated and is connected coaxially, it is fixed gear one (5), turbine one (6) and gear two (7) to be provided with in connection coaxial surface top-down one side, one side meshing of turbine one (6) is connected with drive worm (21), the surface of drive worm (21) is turned right from a left side and is fixed turbine three (18), E shape jump ring (19) and copper sheathing (20) of having set gradually.

2. The intelligent rotary limit switch of claim 1, wherein: and one sides of the four cam adjusting mechanisms (2) are overlapped and arranged.

3. The intelligent rotary limit switch of claim 1, wherein: the four microswitches (11) are in transmission connection with the four cams (4) respectively.

4. The intelligent rotary limit switch of claim 1, wherein: one side of the first gear (5) and one side of the second gear (7) are respectively connected with a third gear (23) in a meshed mode, and one side of the third gear (23) is fixedly provided with a connecting shaft (22).

5. The intelligent rotary limit switch of claim 1, wherein: two waterproof joints (9) are fixedly arranged on the front surface of the lower cover (8).

6. The intelligent rotary limit switch of claim 1, wherein: and a bus type output interface is fixedly arranged on one side of the absolute value encoder (12).

7. The intelligent rotary limit switch of claim 1, wherein: the connecting shaft is arranged corresponding to the cam adjusting mechanism (2).