Special high-reliability wireless steering engine

Abstract

The special high-reliability wireless steering engine comprises an engine body, a driving shaft is rotationally installed in the engine body, the bottom of the driving shaft is connected with a potentiometer, the potentiometer is connected with a control panel, the control panel is connected with a motor and a wireless receiving module, and a second installation shaft parallel to the driving shaft is further rotationally installed in the engine body; a mounting groove is formed in one side of the machine body, the motor is detachably mounted in the mounting groove, one end of the second mounting shaft extends into the mounting groove, a spline sleeve is mounted at the end of the second mounting shaft, and a spline shaft is arranged on a rotating shaft of the motor and arranged in the spline sleeve. During use, the motor is convenient to disassemble and replace, and after the clamping jaws are arranged in the clamping grooves, the first ratchet wheel and the second ratchet wheel are clamped at the same time, so that forward rotation and reverse rotation of the driving shaft are limited and fixed, the clamping force of the ratchet wheels on the clamping jaws is large, and the driving shaft cannot cause unnecessary slippage during large impact.

Description

Technical Field

[0001] The invention relates to the technical field of steering gears, in particular to a special high-reliability wireless steering gear. Background Art

[0002] A servo is a position (angle) servo drive, mainly used to control control systems that require angles to change continuously and be maintained. It is widely used in various applications, including model airplanes, model cars, toy drones, etc. The servo receives a control signal, drives the output shaft to rotate to a specified angle, and maintains it at that position. The servo is usually composed of a DC motor, a reduction gear set, a sensor, and a control circuit, and is controlled by a pulse width modulation signal (PWM signal).

[0003] The drive shaft of the existing servo can rotate when it is stationary. If the connected load needs to maintain a constant position and angle after the servo is stationary, the traditional servo cannot effectively support the load. Driven by the gravity of the load, the shaft of the servo will rotate. To this end, we propose a dedicated high-reliability wireless servo. Summary of the invention

[0004] In view of the shortcomings of existing servo motors that are inconvenient to replace and cannot be fixed when stopped, the present invention provides a special high-reliability wireless servo, which has the advantages of convenient motor replacement and fixed drive shaft through ratchet pawl, solving the problems raised in the above background technology.

[0005] The technical solution of the present invention is achieved as follows: a special high-reliability wireless servo includes a body, a driving shaft is rotatably installed in the body, the bottom of the driving shaft is connected to the potentiometer, the potentiometer is connected to the control board, the control board is respectively connected to the motor and the wireless receiving module, and a second installation shaft parallel to the driving shaft is rotatably installed in the body; a mounting groove is provided on one side of the body, the motor is detachably installed in the mounting groove, one end of the second installation shaft extends into the mounting groove and a spline sleeve is installed at its end, a spline shaft is provided on the rotating shaft of the motor, and the spline shaft is placed in the spline sleeve; the second installation shaft and the driving shaft are connected by a gear transmission structure; a ratchet locking device is also provided on the driving shaft, and the ratchet locking device is driven to open and close by an electromagnetic drive mechanism, and the electromagnetic drive mechanism is connected to the control board.

[0006] Preferably, the gear transmission structure includes a fourth gear arranged on the second mounting shaft; a first mounting shaft is provided between the driving shaft and the second mounting shaft, one end of the first mounting shaft is rotatably connected to the machine body, and a third gear and a fifth gear are installed on the first mounting shaft, and the size of the fifth gear is smaller than the size of the third gear; at least one second gear is installed on the driving shaft, the size of the second gear is larger than the size of the fifth gear, and the second gear is meshed with the fifth gear; the size of the fourth gear is smaller than the size of the third gear, and the fourth gear is meshed with the third gear.

[0007] Preferably, a first gear is also mounted on the first mounting shaft, and a sixth gear is also mounted on the second mounting shaft, and the sixth gear is meshed with the first gear.

[0008] Preferably, the ratchet locking device includes a first ratchet and a second ratchet arranged on the driving shaft, and the inclination directions of the grooves on the edges of the first ratchet and the second ratchet are opposite; strip seats are respectively provided on both sides of the first ratchet and the second ratchet, and each strip seat surface is provided with claws corresponding to the first ratchet and the second ratchet respectively; a support arm is installed in the middle of each strip seat, and the middle part of the support arm is rotatably connected to the support shaft, one end of the support shaft is fixed to the machine body, and a torsion spring is provided on each support shaft, one end of the torsion spring is connected to the machine body, and the other end is connected to the support arm. Driven by the torsion spring, the strip seat approaches the driving shaft, and the claws are respectively placed in the grooves; an electromagnetic drive mechanism is set between the ends of the two support arms away from the driving shaft.

[0009] Preferably, the electromagnetic drive mechanism includes an armature arranged at one end of two arms away from the drive shaft, and an electromagnet arranged between the two armatures, a certain distance is set between the two ends of the electromagnet and the armature, and the middle part of the electromagnet is connected to the body through a mounting seat, and the electromagnet is connected to the controller.

[0010] Preferably, the machine body comprises a shell, a sealing cover is detachably provided on the top of the shell, and a mounting shell is detachably provided on the bottom of the shell.

[0011] Preferably, the gear transmission structure is arranged in the sealing cover, the ratchet locking device and the potentiometer are arranged in the shell, and the control board and the wireless transceiver module are both arranged in the mounting shell; the mounting groove is arranged on one side of the mounting shell, and a support is provided on one side of the motor, and the support is detachably connected to the side of the mounting shell.

[0012] Preferably, connecting seats are symmetrically installed on both sides of the body, and holes are provided on the connecting seats.

[0013] Compared with the prior art, when the present invention is in use, when the motor is damaged, it is only necessary to disassemble the motor and then pull the spline shaft out of the spline sleeve. After replacing the new motor, the spline shaft can be inserted into the spline sleeve. Therefore, there is no need to disassemble the body when replacing the motor, and the operation is convenient; and when the claws are placed in the slots respectively, the first ratchet and the second ratchet are clamped at the same time, so the forward and reverse rotations of the drive shaft are restricted and fixed, and the ratchet claws have a large clamping force, so that the drive shaft will not cause unnecessary slippage during a large impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 The structure of the present invention is shown in FIG. Figure 1 .

[0016] Figure 2 The structure of the present invention is shown in FIG. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the structure of the present invention without the motor.

[0018] Figure 4 It is a cross-sectional view of the present invention.

[0019] Figure 5 The structure of the ratchet locking device of the present invention is shown in FIG. Figure 1 .

[0020] Figure 6 The structure of the ratchet locking device of the present invention is shown in FIG. Figure 2 .

[0021] Figure 7 The present invention is a top view of the ratchet locking device of the present invention.

[0022] In the figure: 1. shell; 2. sealing cover; 3. connecting seat; 4. motor; 5. mounting shell; 6. driving shaft; 7. spline sleeve; 8. slot; 9. first gear; 10. mounting seat; 11. support arm; 12. supporting shaft; 13. potentiometer; 14. first ratchet; 15. second ratchet; 16. second gear; 17. third gear; 18. first mounting shaft; 19. second mounting shaft; 20. fourth gear; 21. fifth gear; 22. torsion spring; 23. sixth gear; 24. armature; 25. electromagnet; 26. bar seat; 27. claw; 28. mounting slot; 29. ​​support. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Reference Figures 1 to 7The present invention provides a technical solution: a dedicated high-reliability wireless steering engine, including a body, such as Figure 1 and Figure 2 As shown, the machine body comprises a shell 1, a sealing cover 2 is detachably provided on the top of the shell 1, and a mounting shell 5 is detachably provided on the bottom of the shell 1.

[0025] A drive shaft 6 is rotatably mounted in the body, and the top of the drive shaft 6 extends from the sealing cover 2 to the outside. Since the drive shaft 6 needs to be connected to the load when the steering gear is in use, a connector is also provided at the top of the drive shaft 6. During installation, the drive shaft 6 is specifically rotatably connected to the sealing cover 2 and the mounting shell 5. The bottom of the drive shaft 6 is connected to the potentiometer 13, and the potentiometer 13 is connected to the control board, which is respectively connected to the motor 4, and the control board and the wireless transceiver module are both arranged in the mounting shell 5, and the wireless transceiver module supports wireless signals such as LAN, 4G, 5G and 6G.

[0026] Next, a mounting groove 28 is provided on one side of the body, such as Figure 3 As shown, the mounting groove 28 is arranged on one side of the mounting shell 5, and the motor 4 is detachably mounted in the mounting groove 28. Specifically, a support 29 is provided on one side of the motor 4, and the support 29 is detachably connected to the side of the mounting shell 5. The support 29 and the mounting shell 5 are fastened by bolts.

[0027] A second mounting shaft 19 parallel to the drive shaft 6 is also rotatably mounted in the body. The second mounting shaft 19 is located at the mounting groove 28 and corresponds to the position of the motor 4. Therefore, the position of the second mounting shaft 19 is also located above the mounting groove 28. When installing, the second mounting shaft 19 can be rotatably mounted on the sealing cover 2. Figure 4 As shown, one end of the second mounting shaft 19 (the bottom of the second mounting shaft 19) extends into the mounting groove 28 and a spline sleeve 7 is installed at its end, and a spline shaft is provided on the rotating shaft of the motor 4, and the spline shaft is placed in the spline sleeve 7;

[0028] The motor 4 in the present application is a brushless motor, of course, a servo motor or other motors are also possible. The motor is arranged outside the body to help dissipate heat, and the motor 4 is easy to disassemble and replace. When the motor is damaged, it is only necessary to disassemble the motor 4 and pull the spline shaft out of the spline sleeve 7. After replacing the new motor, the spline shaft can be inserted into the spline sleeve 7. Therefore, there is no need to disassemble the body when replacing the motor, and the operation is convenient.

[0029] Furthermore, when the steering gear is in use, the motor 4 needs to drive the drive shaft 6 to rotate, and the second mounting shaft 19 and the drive shaft 6 need to be connected through a gear transmission structure so that the power of the two can be connected;

[0030] The gear transmission structure is arranged in the sealing cover 2, and the gear transmission structure will be described in detail below. Figure 4As shown, the gear transmission structure includes a fourth gear 20 arranged on the second mounting shaft 19, and a first mounting shaft 18 is arranged between the driving shaft 6 and the second mounting shaft 19, and one end of the first mounting shaft 18 is rotatably connected to the body, specifically, the bottom of the first mounting shaft 18 is rotatably mounted on the top of the housing 1;

[0031] A third gear 17 and a fifth gear 21 are mounted on the first mounting shaft 18. The third gear 17 and the fifth gear 21 are an integrated structure, and the size of the fifth gear 21 is smaller than that of the third gear 17.

[0032] At least one second gear 16 is installed on the drive shaft 6. In actual use, the second gear 16 is closest to the load and bears the largest load force, so the number of second gears 16 is at least two, so that the second gear 16 can have sufficient strength when driving the drive shaft 6, and the size of the second gear 16 is larger than the size of the fifth gear 21, and the second gear 16 is meshed with the fifth gear 21. Among them, the size of the fourth gear 20 is smaller than the size of the third gear 17, and the fourth gear 20 is meshed with the third gear 17;

[0033] Therefore, when the motor 4 rotates, it can drive the second installation shaft 19 to rotate, and the second installation shaft 19 drives the third gear 17 to rotate through the fourth gear 20, and the third gear 17 drives the second gear 16 to rotate through the fifth gear 21. The process is to make the third gear 17 and the fourth gear 20 perform a primary deceleration, and then perform a secondary deceleration through the fifth gear 21 and the second gear 16, so that the speed of the motor 4 is reduced, so that the output torque of the motor 4 is amplified;

[0034] Moreover, a first gear 9 is mounted on the first mounting shaft 18, and a sixth gear 23 is mounted on the second mounting shaft 19. The sixth gear 23 meshes with the first gear 9. Figure 4 As shown, the third gear 17 and the second installation shaft 19 can simultaneously drive the first installation shaft 18 to rotate, which can increase the connection strength between the first installation shaft 18 and the second installation shaft 19.

[0035] Furthermore, a ratchet locking device is also provided on the driving shaft 6, and the ratchet locking device and the potentiometer 13 are provided in the housing 1. The ratchet locking device will be described in detail below;

[0036] like Figure 5 and Figure 6 As shown, the ratchet locking device includes a first ratchet 14 and a second ratchet 15 arranged on the drive shaft 6, and the slots 8 on the edges of the first ratchet 14 and the second ratchet 15 are inclined in opposite directions. A strip seat 26 is provided on both sides of the first ratchet 14 and the second ratchet 15, and a claw 27 corresponding to the first ratchet 14 and the second ratchet 15 is provided on the surface of each strip seat 26;

[0037] A support arm 11 is installed in the middle of each strip seat 26, and the middle of the support arm 11 is rotatably connected to the support shaft 12, and one end of the support shaft 12 is fixed to the body, specifically, the top of the support shaft 12 is fixed to the top of the shell 1, and a torsion spring 22 is provided on each support shaft 12, and one end of the torsion spring 22 is connected to the body, specifically, the top of the torsion spring 22 is fixed to the support shaft 12 or the top of the shell 1, and the other end of the torsion spring 22 (i.e., the bottom of the torsion spring 22) is connected to the support arm 11. Driven by the torsion spring 22, the strip seat 26 approaches the driving shaft 6, and the claws 27 are respectively placed in the card slots 8;

[0038] It should be noted that the groove on the edge of the ratchet is inclined, mainly to achieve the engagement and sliding between the ratchet and the pawl. When the pawl is engaged with the ratchet, the cooperation between the ratchet and the pawl can prevent the shaft from rotating. Because a single ratchet can only prevent one-way rotation, the ratchet of the present application is two and oppositely arranged, so that when the claws 27 are respectively placed in the slots 8, the first ratchet 14 and the second ratchet 15 are simultaneously clamped, so that the forward and reverse rotations of the drive shaft 6 are restricted and fixed, so that the drive shaft 6 always remains stationary, and the ratchet claw 27 has a large clamping force, so that the drive shaft 6 will not cause unnecessary slippage during a large impact.

[0039] Furthermore, the ratchet locking device needs to be opened immediately when the drive shaft 6 rotates. The ratchet locking device is in a normally closed state only when the servo is normally closed or needs to be stopped. The ratchet locking device is arranged between the ends of the two arms 11 away from the drive shaft 6. The electromagnetic drive mechanism drives the ratchet locking device to open and close under the drive of the control board.

[0040] Among them, the electromagnetic drive mechanism includes an armature 24 arranged at one end of the two arms 11 away from the drive shaft 6, and an electromagnet 25 arranged between the two armatures 24. A certain distance is set between the two ends of the electromagnet 25 and the armature 24, and the distance is used for closing or opening the armature 24, and the middle part of the electromagnet 25 is connected to the body through the mounting seat 10.

[0041] Based on the above embodiment, it can be further optimized that the steering gear needs to be fixed when in use, such as Figure 1 and Figure 2 , Figure 3 As shown, connecting seats 3 are symmetrically installed on both sides of the body, and holes are provided on the connecting seats 3, which are fixed by bolts. During installation, the connecting seats 3 are specifically arranged on both sides of the housing 1.

[0042] Based on the above embodiment, further optimization can be performed. A spline shaft is provided at the bottom of the driving shaft, and a spline sleeve is installed on the shaft at the top of the potentiometer 13. During installation, the driving shaft 6 and the potentiometer 13 are connected by plugging and unplugging.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A special high-reliability wireless steering engine, comprising a body, a drive shaft (6) rotatably mounted in the body, the bottom of the drive shaft (6) is connected to a potentiometer (13), the potentiometer (13) is connected to a control board, the control board is respectively connected to a motor (4) and a wireless receiving module, characterized in that: A second mounting shaft (19) parallel to the driving shaft (6) is also rotatably mounted in the machine body; A mounting groove (28) is provided on one side of the machine body, and the motor (4) is detachably mounted in the mounting groove (28); one end of the second mounting shaft (19) extends into the mounting groove (28) and a spline sleeve (7) is mounted on the end thereof; a spline shaft is provided on the rotating shaft of the motor (4), and the spline shaft is placed in the spline sleeve (7); The second installation shaft (19) and the driving shaft (6) are connected via a gear transmission structure; and, A ratchet locking device is also provided on the driving shaft (6), and the ratchet locking device is driven to open and close by an electromagnetic driving mechanism, and the electromagnetic driving mechanism is connected to the control panel.

2. The dedicated high-reliability wireless servo as claimed in claim 1, characterized in that: The gear transmission structure comprises a fourth gear (20) arranged on the second mounting shaft (19); A first installation shaft (18) is provided between the driving shaft (6) and the second installation shaft (19), one end of the first installation shaft (18) is rotatably connected to the machine body, a third gear (17) and a fifth gear (21) are installed on the first installation shaft (18), and the size of the fifth gear (21) is smaller than that of the third gear (17); At least one second gear (16) is mounted on the driving shaft (6), the size of the second gear (16) is larger than the size of the fifth gear (21), and the second gear (16) is meshed with the fifth gear (21); The size of the fourth gear (20) is smaller than the size of the third gear (17), and the fourth gear (20) is meshed with the third gear (17).

3. The dedicated high-reliability wireless servo as claimed in claim 2, characterized in that: A first gear (9) is also mounted on the first mounting shaft (18), and a sixth gear (23) is also mounted on the second mounting shaft (19), and the sixth gear (23) is meshed with the first gear (9).

4. The dedicated high-reliability wireless servo as claimed in claim 1, characterized in that: The ratchet locking device comprises a first ratchet (14) and a second ratchet (15) arranged on a driving shaft (6), and the slots (8) on the edges of the first ratchet (14) and the second ratchet (15) are inclined in opposite directions; A strip seat (26) is provided on both sides of the first ratchet (14) and the second ratchet (15), and a claw (27) corresponding to the first ratchet (14) and the second ratchet (15) is provided on the surface of each strip seat (26); A support arm (11) is installed in the middle of each bar seat (26), the middle of the support arm (11) is rotatably connected to the support shaft (12), one end of the support shaft (12) is fixed to the machine body, and a torsion spring (22) is provided on each support shaft (12), one end of the torsion spring (22) is connected to the machine body, and the other end is connected to the support arm (11), driven by the torsion spring (22), the bar seat (26) approaches the driving shaft (6), and the claws (27) are respectively placed in the clamping grooves (8); An electromagnetic driving mechanism is arranged between the ends of the two supporting arms (11) away from the driving shaft (6).

5. The dedicated high-reliability wireless servo as claimed in claim 4, characterized in that: The electromagnetic drive mechanism comprises an armature (24) arranged at one end of two arms (11) away from the drive shaft (6), and an electromagnet (25) arranged between the two armatures (24), a certain distance being arranged between the two ends of the electromagnet (25) and the armature (24), and a middle part of the electromagnet (25) is connected to the machine body through a mounting seat (10), and the electromagnet (25) is connected to a controller.

6. The dedicated high-reliability wireless servo as claimed in claim 1, characterized in that: The machine body comprises a shell (1), a sealing cover (2) is detachably provided on the top of the shell (1), and a mounting shell (5) is detachably provided on the bottom of the shell (1).

7. The dedicated high-reliability wireless steering gear according to claim 6, characterized in that: The gear transmission structure is arranged in the sealing cover (2), the ratchet locking device and the potentiometer (13) are arranged in the housing (1), and the control panel and the wireless transceiver module are both arranged in the mounting shell (5); The mounting groove (28) is arranged on one side of the mounting shell (5); and A support (29) is provided on one side of the motor (4), and the support (29) is detachably connected to the side of the mounting shell (5).

8. The dedicated high-reliability wireless servo as claimed in any one of claims 1 to 8, characterized in that: Connecting seats (3) are symmetrically mounted on both sides of the machine body, and holes are arranged on the connecting seats (3).

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