CN211506291U

CN211506291U - Single-shaft industrial control rod

Info

Publication number: CN211506291U
Application number: CN202020541202.8U
Authority: CN
Inventors: 陈社东; 金磊; 王道康; 宋业建
Original assignee: Shanghai Chengong Electronic Control Co ltd
Current assignee: Shanghai Chengong Electronic Control Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-09-15
Anticipated expiration: 2030-04-14

Abstract

The utility model discloses a single-shaft industrial control rod, belonging to the technical field of industrial control rods, which comprises a box body, a rocking bar and a rocking sensing component; it is through the structure simplification mode, two pivot on the required unipolar direction of traditional perpendicular to this application have been cancelled, the axle sleeve combination, and two torsion spring on this direction, the well position clearance on the perpendicular to operation direction has been eliminated completely, the operational reliability is better, in addition, change the hall element structure that original symmetry set up on the PCB board into the unilateral mode of setting, it is more linear to shake excellent turned angle output electrical property, thereby simplify the structure and simplify technology, in order to reach raise the efficiency, improve product reliability, reduce the product because the inefficacy or the unstable problem that the connection problem caused.

Description

Single-shaft industrial control rod

Technical Field

The utility model relates to an industry control rod technical field especially relates to a unipolar industry control rod.

Background

The existing market uses many industrial operation rods with similar structures, the conventional mechanical connection and matching are used for completing a double-shaft structure, and in the case of a single-shaft structure, a limiting plate is used for realizing the function of single-shaft operation, but the existing technology for realizing the function of single-shaft by using the limiting plate for double shafts has great defects in single-shaft reliability and handle durability, such as the gap size difference of torsion spring supporting positions in two operation directions and the assembly gap difference of shaft sleeves and shaft pins in the two operation directions, so that an operator can obviously feel the problem of middle gap when operating a baton; in addition, the Hall elements are symmetrically arranged on the Hall PCB relative to the magnetic steel in the existing operating lever, and the output voltage of the rotating angle of the rocker is found to be not linear enough in the actual experiment process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a unipolar industrial control pole, it has cancelled two pivots, the axle sleeve combination on the required unipolar direction of traditional perpendicular to this application through the structure simplified mode to and two torsion spring on this side, eliminated the meso position clearance on the perpendicular to operation direction completely, the operational reliability is better, and in addition, hall element changes the unilateral setting into, and it is more linear to shake excellent turned angle output electrical property.

In order to solve the problems that the control rods in the prior art all use mechanical connection matching to complete a double-shaft structure, and when the control rods are in a single-shaft structure, a limiting plate is used for realizing single-shaft operation, because the double-shaft structure has the problem of median clearance perpendicular to the operation direction when used as a single shaft, and in addition, the output voltage of the rotation angle of the rocking rod is not linear, the utility model provides a single-shaft industrial control rod which comprises a box body, the rocking rod and a rocking sensing assembly;

the box body comprises a shell, a limiting plate and a connecting seat; the two mounting plates are symmetrically arranged on the inner side wall of the shell; the limiting plate covers the end part of the shell, and an elongated slot is formed in the limiting plate; the connecting seat is bridged between the two mounting plates;

the inner end of the rocker penetrates through the elongated slot and extends to the inner cavity of the shell, an inner support is integrally formed at the inner end of the rocker and is connected to the shell through a rotating shaft structure, a stop block extends out of the inner support on the same side as the rotating shaft structure, a strip-shaped groove is formed in the stop block, a torsion spring is sleeved on the rotating shaft structure, and two ends of the torsion spring are respectively stopped at two ends of the strip-shaped groove and used for controlling the reset action of the rocker;

the shaking sensing assembly comprises a Hall PCB and annular magnetic steel; the annular magnetic steel is integrally molded on the inner support, and the Hall PCB is mounted on the end face of the connecting seat close to one side of the annular magnetic steel.

Further, the utility model provides a unipolar industrial control pole, wherein, hall PCB board includes PCB board and a hall element; the Hall element is offset at one side of the PCB and is arranged on a projection line of a rotating axis of the rotating shaft structure on the PCB; in the practical experiment process, the linear relation between the output voltage of the Hall element biased relative to the single side of the annular magnetic steel and the rotation angle of the rocker is found, and the method is obviously superior to the traditional bilateral symmetry arrangement mode.

Preferably, the utility model provides a unipolar industry control rod, wherein, annular magnet steel is just right during the PCB board, hall element is located annular magnet steel and is in on the plane of projection of PCB board.

Further, the utility model provides a single-shaft industrial control rod, wherein, the rotating shaft structure comprises a shaft sleeve, a shaft pin, a sleeve pipe extending from the inner support and a shaft sleeve hole arranged on the outer shell; the shaft sleeve is inserted into the shaft sleeve hole, and the shaft sleeve is in interference fit with the shaft sleeve hole; one end of the shaft pin is inserted into the sleeve, the other end of the shaft pin is inserted into the shaft sleeve, a knurling structure is arranged on the matching surface of the shaft pin and the sleeve, and the shaft pin is in clearance fit with the shaft sleeve.

The utility model provides a pair of unipolar industry control rod compares with prior art and has following advantage:

the utility model discloses change the hall element structure that original symmetry set up on the PCB board into the unilateral and set up the mode, the excellent turned angle output electrical property of shaking is more linear to thereby simplify the structure and simplify technology, in order to reach raise the efficiency, improve product reliability, reduce the product because the inefficacy or the unstable problem that the connection problem caused.

Drawings

FIG. 1 is a top view of a single-axis industrial control stick of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic diagram of an explosive structure of a single-shaft industrial control rod according to the present invention;

FIG. 5 is a partial schematic view of the structure;

fig. 6 is a schematic structural view of the locking mechanism of the present invention;

FIG. 7 is an enlarged view at F1 of FIG. 6;

fig. 8 is a schematic structural view of the locking block of the present invention.

Wherein: 1. a box body; 2. shaking the rod; 3. a housing; 4. a limiting plate; 5. a connecting seat; 6. mounting a plate; 7. a long groove; 8. an inner support; 9. a rotating shaft structure; 10. a stop block; 11. a strip-shaped groove; 12. a torsion spring; 13. a shaft sleeve; 14. a shaft pin; 15. a sleeve; 16. a shaft sleeve hole; 17. a Hall PCB board; 18. annular magnetic steel; 19. a PCB board; 20. a Hall element; 112. a boss; 230. a locking block; 231. an upper ring groove; 232. a guide slope; 233. inserting grooves; 234. a fastening groove; 235. installing the notch; 236. a locking surface; 240. a sleeve; 241. an inner sleeve; 242. a forcing ring; 243. a plug-in ring; 250. a limiting cover; 510. a spring; 520. a screw; 530. an unlocking lever; 540. an unlocking plate; 551. a first hinge pin; 552. a second hinge pin; 560. a spring plate; 561. the buckle is convex.

Detailed Description

The technical solution 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 of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention;

in the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1 to 5, the embodiment provides a single-shaft industrial joystick, which includes a box 1, a rocking bar 2 and a rocking sensing component;

the box body 1 comprises a shell 3, a limiting plate 4 and a connecting seat 5; two mounting plates 6 are arranged in the shell 3, and the two mounting plates 6 are symmetrically arranged on the inner side wall of the shell 3; the limiting plate 4 covers the end part of the shell 3, and a long groove 7 is formed in the limiting plate 4; the connecting seat 5 is bridged between the two mounting plates 6;

the inner end of the rocker 2 penetrates through the elongated slot 7 and extends to the inner cavity of the housing 3, an inner support 8 is integrally formed at the inner end of the rocker 2, the inner support 8 is connected to the housing 3 through a rotating shaft structure 9, a stop block 10 extends from the inner support 8 on the same side as the rotating shaft structure 9, a strip-shaped groove 11 is formed in the stop block 10, a torsion spring 12 is sleeved on the rotating shaft structure 9, and two ends of the torsion spring 12 are respectively stopped at two ends of the strip-shaped groove 11 and used for controlling the reset action of the rocker 2; the rotating shaft structure 9 comprises a shaft sleeve 13, a shaft pin 14, a sleeve 15 extending from the inner bracket 8, and a shaft sleeve hole 16 formed in the outer shell 3; the shaft sleeve 13 is inserted into the shaft sleeve hole 16, and the shaft sleeve 13 is in interference fit with the shaft sleeve hole 16; one end of the shaft pin 14 is inserted into the sleeve 15, the other end of the shaft pin is inserted into the shaft sleeve 13, a knurled structure is arranged on the matching surface of the shaft pin 14 and the sleeve 15, and the shaft pin 14 is in clearance fit with the shaft sleeve 13;

the shake sensing component comprises a Hall PCB (printed Circuit Board) 17 and annular magnetic steel 18; the annular magnetic steel 18 is integrally injected to the inner support 8, the magnetism of the annular magnetic steel 18 generates a radial magnetic field in the embodiment, and the hall PCB 17 is installed on the end surface of the connecting seat 5 close to one side of the annular magnetic steel 18; the Hall PCB 17 comprises a PCB 19 and a Hall element 20; the hall element 20 is offset to one side of the PCB 19 and is arranged on a projection line of a rotation axis of the rotating shaft structure 9 on the PCB 19; in the practical experiment process, the linear relation between the output voltage of the Hall element 20 biased relative to the single side of the annular magnetic steel 18 and the rotation angle of the rocker 2 is found, which is obviously superior to the traditional bilateral symmetry arrangement mode; when the annular magnetic steel 18 is over against the PCB 19, the Hall element 20 is positioned on the projection surface of the annular magnetic steel 18 on the PCB 19, and the linear effect is better.

The working process and principle are as follows: before the operating lever is assembled and leaves the factory, the program burning is carried out on the Hall element 20.

When the Hall PCB 17 is static along with the rocker, the Hall element 20 on the Hall PCB continuously outputs a fixed middle voltage value due to Hall effect because a certain distance exists between the Hall element 20 and the annular magnetic steel 18; when the Hall PCB 17 rotates along with the rocker, the distance between the Hall element 20 and the annular magnetic steel 18 changes, and the Hall element 20 outputs a related voltage value according to a program due to a pre-burning program; the voltage value required to be output can be adjusted according to the pre-burning program; due to the fact that the Hall elements 20 are arranged on the two sides, the Hall moving distance is different on the two sides, and therefore poor output voltage linearity is generated; and the side surface mounting Hall element 20 can make the relation of the moving distance of both sides basically symmetrical and has good linearity.

As a further preferable technical solution, referring to fig. 6 to 8, since the inner space of the housing is small in the embodiment, it is not easy to add a corresponding locking mechanism in the housing in the case that the rocker 2 needs to be locked and positioned, so the applicant sets the locking mechanism outside the rocker 2, specifically as follows:

the outer side of the rocker 2 is sleeved with a locking block 230 in an axially sliding manner, and a locking surface 236 of the locking block 230 is pressed against the end surface of the boss 112 on two sides of the long groove 7, so that the rocker 2 is locked (the position of the rocker is relatively fixed) through friction force.

The locking block 230 is further provided with an upper ring groove 231, a guide inclined surface 232, an insertion groove 233, a buckling groove 234 and an installation notch groove 235, the guide inclined surface 232 is arranged at the joint of the inner wall of the upper ring groove 231 and the insertion groove 233, the buckling groove 234 penetrates through the locking block 230 and is communicated with the upper ring groove 231, and the installation notch groove 235 is arranged on the outer wall of the locking block 230 and is communicated with the buckling groove 234;

the insertion groove 233 is inserted into the insertion ring 243 for assembly, and the screw 520 penetrates through the locking block 230 and then is screwed with the insertion ring 243 for assembly and fixation; the bottom surface of the inner side of the upper ring groove 231 is tightly pressed with the bottom of the spring 510, the top of the spring 510 is arranged in the limit cover 250, and the limit cover 250 is fixed on the rocker 2;

the inserting ring 243 is arranged at the bottom of the sleeve 240, an inner sleeve 241 is arranged inside the sleeve 240, and the inner sleeve 241 is sleeved outside the limiting cover 250 and can axially slide with the limiting cover; a force applying ring 242 is arranged at the top of the outer side of the sleeve 240, and the force applying ring 242 is used for facilitating the upward pulling of the sleeve 240;

the spring 510 is used for generating a pushing force for pressing the locking block 230, so that the locking block 230 is pressed against the boss end face to be relatively fixed. When the locking is required to be released, the locking block is separated from the boss only by pulling the sleeve 240 upwards through the forcing ring. Preferably, referring to fig. 6, the locking surface 236 is a curved surface protruding toward the boss along the length of the elongated slot, and this design is mainly to ensure that the locking block can be pressed against the boss at any position of the rocker.

The bottom of the limiting cover 250 is fixedly assembled with one end of the spring leaf 560, the other end of the spring leaf 560 is provided with a buckling bulge 561, and the spring leaf has elasticity. The locking groove 234 can be assembled with the locking protrusion 561 in a locking manner, the unlocking rod 530 is assembled in the locking groove 234 in a locking and sliding manner, one end of the unlocking rod 530 penetrates through the locking groove 234, enters the installation notch 235 and is hinged to one end of the unlocking plate 540 through the first hinge pin 551, and the other end of the unlocking plate 540 is hinged to the inner wall of the installation notch 235 through the second hinge pin 552.

When the rocker needs to be rotated, the sleeve is pulled upwards until the snap protrusions are clamped into the snap grooves, and the snap protrusions push the unlocking lever 530 outwards, so that the unlocking plate 540 and the unlocking lever hinge groove protrude outwards. The rocking bar can be swung freely for adjustment. When locking again is needed, only the unlocking plate 540 needs to be pressed towards the unlocking rod, so that the unlocking rod pushes the buckle protrusion out of the buckle groove. The use is very convenient, and the inner space of the shell is not occupied.

The details of the present invention are well known to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The single-shaft industrial joystick is characterized by comprising a box body (1), a rocking bar (2) and a rocking sensing component;

the box body (1), the box body (1) comprises a shell (3), a limiting plate (4) and a connecting seat (5); two mounting plates (6) are arranged in the shell (3), and the two mounting plates (6) are symmetrically arranged on the inner side wall of the shell (3); the limiting plate (4) covers the end part of the shell (3), and a long groove (7) is formed in the limiting plate (4); the connecting seat (5) is bridged between the two mounting plates (6);

the inner end of the rocking rod (2) penetrates through the long groove (7) and extends to the inner cavity of the shell (3), an inner support (8) is integrally formed at the inner end of the rocking rod (2), the inner support (8) is connected to the shell (3) through a rotating shaft structure (9), a stop block (10) extends out of the inner support (8) on the same side with the rotating shaft structure (9), a strip-shaped groove (11) is formed in the stop block (10), a torsion spring (12) is sleeved on the rotating shaft structure (9), and two ends of the torsion spring (12) are respectively stopped at two ends of the strip-shaped groove (11) and used for controlling the reset action of the rocking rod (2);

the shaking sensing assembly comprises a Hall PCB (printed circuit board) plate (17) and annular magnetic steel (18); the annular magnetic steel (18) is integrally injected on the inner support (8), and the Hall PCB (17) is installed on the end face of the connecting seat (5) close to one side of the annular magnetic steel (18).

2. The single-axis industrial joystick of claim 1, wherein the hall PCB board (17) comprises a PCB board (19) and a hall element (20); the Hall element (20) is offset to one side of the PCB (19) and is arranged on a projection line of a rotation axis of the rotating shaft structure (9) on the PCB (19).

3. The single-axis industrial joystick according to claim 2, wherein the hall element (20) is located on a projection plane of the annular magnetic steel (18) on the PCB (19) when the annular magnetic steel (18) is directly opposite to the PCB (19).

4. The single-shaft industrial joystick according to claim 1, wherein the shaft structure (9) comprises a shaft sleeve (13), a shaft pin (14), a sleeve (15) extending from the inner bracket (8), and a shaft sleeve hole (16) opened in the housing (3); the shaft sleeve (13) is inserted into the shaft sleeve hole (16), and the shaft sleeve (13) is in interference fit with the shaft sleeve hole (16); one end of the shaft pin (14) is inserted into the sleeve (15), the other end of the shaft pin is inserted into the shaft sleeve (13), a knurling structure is arranged on the matching surface of the shaft pin (14) and the sleeve (15), and the shaft pin (14) is in clearance fit with the shaft sleeve (13).