Torque motor with self-locking structure

Abstract

The invention provides a torque motor with a self-locking structure. Comprising a torque motor body, a self-locking seat detachably mounted at the top of the torque motor body, a mounting shell detachably mounted at the top of the self-locking seat, a driving shaft of which a rotating rod is mounted at the center in the mounting shell and which is fixed with the output end of the torque motor body, and two groups of transmission shafts which are arranged in a crossed manner with the driving shaft. According to the invention, the self-locking structure and the output end of the motor can be disconnected quickly, and later angle installation adaptation and output end orientation adaptation can be carried out according to the installation position, so that the problem that the driving requirement of the existing torque motor cannot be adjusted according to the installation environment is solved; under the limitation of a fixed mounting position, the later-stage adjustability is poor, the application range cannot be widened, and the adaptability on equipment with large assembly line change is poor; and during self-locking, micro-motion exists after the motor is powered off, quick disconnection cannot be achieved, and the driving locking stability is affected.

Description

Technical Field

[0001] The present invention relates to the technical field of torque motors, and in particular to a torque motor with a self-locking structure. Background Art

[0002] In terms of electromagnetic principles, torque motors are similar to ordinary motors. They are also based on the law of electromagnetic induction and generate torque through the interaction of magnetic fields between stator windings and rotors. However, torque motors are designed with more emphasis on optimizing torque characteristics.

[0003] For example, its rotor usually adopts a special structure. For example, the permanent magnet pole distribution and shape on the rotor of a permanent magnet torque motor are carefully designed to improve the utilization efficiency of the magnetic field, thereby generating a larger torque at a lower speed. In addition, the stator winding of the torque motor is also designed according to the required torque characteristics, and the torque and current requirements of different application scenarios are met by adjusting the number of winding turns, wire diameter and other parameters.

[0004] In the existing technology, the torque motor has the following defects: 1. The later adjustability is poor under the limitation of fixed installation position, which cannot improve its application scope and has poor adaptability on equipment with large changes in assembly lines; 2. When the motor is self-locking, there is a slight movement after the power is cut off, and it cannot be disconnected quickly, which affects the stability of the drive locking.

[0005] The above-mentioned micromotion means that even if the mechanical brake components have been in contact, due to the inertia of the motor output shaft and the load connected to it, according to Newton's first law, they will maintain their original state of motion. Therefore, in the early stage of braking, the output shaft may continue to rotate a short distance due to inertia, which is the so-called micromotion. The amplitude and duration of this micromotion are related to the inertia of the load and the speed at which the brake device generates friction. If the load inertia is large, such as large rotating machinery, the micromotion may be more obvious and last longer, which will cause movement damage to the device that needs to be braked and self-locked. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a torque motor with a self-locking structure, which can quickly disconnect the self-locking structure from the motor output terminal, and can perform subsequent angle installation adaptation and output terminal orientation adaptation according to the installation position, so as to solve the problem that the existing torque motor cannot be adjusted according to the driving requirements of the installation environment; the later adjustability is poor under the limitation of the fixed installation position, and its application range cannot be improved, and its adaptability is poor on equipment with large changes in the assembly line; when self-locking, the motor has micro-motion after power is cut off, and cannot be disconnected quickly, affecting the stability of the drive lock.

[0007] In order to achieve the above-mentioned purpose, the present invention is realized by the following technical scheme: a torque motor with a self-locking structure, comprising a torque motor body, a self-locking seat detachably mounted on the top of the torque motor body, a mounting shell detachably mounted on the top of the self-locking seat, a driving shaft whose rotating rod is mounted at the center of the mounting shell and fixed to the output end of the torque motor body, and two groups of transmission shafts arranged crosswise with the driving shaft, the two groups of transmission shafts are symmetrically mounted on both sides of the driving shaft and rotatably mounted inside the mounting shell, a surface rotating sleeve of the driving shaft is provided with a worm sleeve, and also includes a mechanical self-locking drive mechanism, which is arranged inside the mounting shell and is used to mechanically self-lock the rotation of the driving shaft; A stable stand fixedly mounted at the center of the top of the self-locking seat, wherein a self-locking quick disconnect mechanism is arranged on the stable stand for quickly disconnecting the drive shaft from the worm sleeve to eliminate the inertia at the initial stage of mechanical braking; The installation angle adjustment component is used to adjust the installation angle of the self-locking seat and change the driving direction of the transmission shaft.

[0008] Furthermore, the self-locking drive mechanism includes a limit frame 1, a limit frame 2, a worm gear, a double-axis linkage assembly and an axle pin. The limit frame 1 is fixedly installed on both sides of the top of the self-locking seat, the limit frame 2 is fixedly installed on both sides of the top of the self-locking seat and is located on the inner side of the limit frame 1. The axle pin is provided with two groups and is rotatably installed inside the limit frame 2. The worm gear key is connected to the surface of the axle pin and meshes with the worm sleeve. The double-axis linkage assembly is arranged on the axle pin and is used to transmit the driving force of the worm gear to the two groups of transmission shafts.

[0009] Furthermore, the dual-axis linkage assembly includes a pinion and a large gear, the pinion is fixedly mounted on the back of the worm gear and is coaxial with the worm gear, the large gear is fixedly mounted on the surface of the transmission shaft, the transmission shaft is rotatably mounted on the limit frame, and the large gear is meshed with the pinion.

[0010] Furthermore, the self-locking quick disconnect mechanism includes an electromagnetic push rod, a lifting frame, a coupling inner gear ring, a connecting side plate, a pressure ring, a tooth groove, an axial sliding limit assembly and a limiting sliding ring. The electromagnetic push rod is fixedly mounted on the back of the stable stand, the lifting frame is slidably mounted on the stable stand and fixedly mounted on the output end of the electromagnetic push rod, the coupling inner gear ring is rotatably mounted on the lifting frame, and the inner side of the coupling inner gear ring is meshed with the tooth groove, the tooth groove is provided at the top of the driving shaft surface, the top of the limiting sliding ring is fixedly mounted with the bottom of the coupling inner gear ring by bolts, the axial sliding limit assembly is arranged on the limiting sliding ring and is used to axially slide and limit the worm sleeve and the limiting sliding ring to ensure that the rotation of the coupling inner gear ring is not affected when the limiting sliding ring is lifted or lowered, the connecting side plates are provided with two groups and are fixedly mounted on both sides of the top of the lifting frame, the two sides of the pressure ring are fixedly mounted with the connecting side plates by bolts, and the bottom of the pressure ring is rotatably matched with the top of the coupling inner gear ring.

[0011] Furthermore, a rubber ring is fixedly installed on the top of the jacking frame, and the rubber ring is located on the outside of the limiting sliding ring and is used in conjunction with the bottom of the coupling inner gear ring.

[0012] Furthermore, the axial sliding limit assembly includes a sliding groove and a limit strip, the sliding groove is opened at the top four corners of the outer surface of the worm sleeve, and the limit strip is fixedly installed on the inner side of the limit sliding ring and slidably cooperates with the sliding groove.

[0013] Furthermore, the installation angle adjustment assembly includes a positioning bolt and a positioning hole, the positioning bolt is threadedly connected to the front and rear sides of the top of the self-locking seat, and there are multiple positioning holes, which are annularly equidistantly opened on the top of the torque motor body and cooperate with the positioning bolt thread.

[0014] Furthermore, a limiting ring is fixedly installed on the bottom of the outer surface of the worm sleeve, and a limiting clamp located on the top of the limiting ring and rotatably matched with the worm sleeve is fixedly installed on the bottom of the stable stand close to the worm sleeve.

[0015] Furthermore, a limiting groove is fixedly installed on the top of the back side of the stabilizing stand, and a stabilizing frame which is slidably matched with the lifting frame is provided inside the stabilizing stand, and the lifting frame is slidably matched with the stabilizing frame.

[0016] The beneficial effects of the present invention are as follows: the present invention realizes multi-directional power transmission through two sets of cross-staggered transmission shafts, meets the diverse power layout requirements, and at the same time, the worm sleeve continues to rotate through the self-locking drive mechanism so that the device connected to the output end in operation will not be affected by micro-motion; and there can be a real-time self-locking effect when ensuring the output of the transmission shaft, and through the setting of the self-locking quick disconnect mechanism, the motor can quickly cut off the power connection when some emergency stops or specific working conditions are required, avoiding excessive wear and impact of equipment components due to inertia and other factors, and preventing subsequent unnecessary movements from having adverse effects on related devices in operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the partial explosion structure of the installation shell of the present invention; Figure 3 It is a schematic diagram of the bidirectional explosion structure of the installation shell of the present invention; Figure 4 for Figure 3 A magnified view of middle; Figure 5It is a schematic diagram of a half-cut three-dimensional structure of a stable stand of the present invention; Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the coupled internal gear ring of the present invention; Figure 7 It is a schematic diagram of the explosion structure of the worm sleeve of the present invention.

[0018] In the figure: 1. torque motor body; 2. self-locking seat; 201. positioning bolt; 202. positioning hole; 21. limit frame 1; 22. limit frame 2; 23. stable frame; 231. drive shaft; 232. worm gear; 2321. small gear; 2322. large gear; 2323. shaft pin; 2301. electromagnetic push rod; 2302. lifting frame; 23021. rubber ring; 2303. coupling inner gear ring; 2304. connecting side plate; 2305. pressure ring; 2306. tooth groove; 2307. sliding groove; 23071. limit strip; 2308. limit sliding ring; 2311. limit groove; 2312. stable frame; 2313. limit clamp; 24. worm sleeve; 241. limit ring; 3. mounting shell; 4. transmission shaft. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] See also Figure 1 and Figure 4 , Figure 1 It is a structural schematic diagram of the present invention; Figure 4 for Figure 3 A is an enlarged view of the middle image.

[0021] A torque motor with a self-locking structure, comprising a torque motor body 1, a self-locking seat 2 detachably mounted on the top of the torque motor body 1, a mounting shell 3 detachably mounted on the top of the self-locking seat 2, a driving shaft 231 whose rotating rod is mounted at the center of the mounting shell 3 and fixed to the output end of the torque motor body 1, and two groups of transmission shafts 4 arranged crosswise with the driving shaft 231, the two groups of transmission shafts 4 are symmetrically mounted on both sides of the driving shaft 231 and rotatably mounted inside the mounting shell 3, a worm sleeve 24 is provided on the surface of the driving shaft 231, and a mechanical self-locking driving mechanism is also included, which is arranged inside the mounting shell 3 and is used to mechanically self-lock the rotation of the driving shaft 231; A stable stand 23 is fixedly mounted at the top center of the self-locking seat 2, and a self-locking quick disconnect mechanism is provided on the stable stand 23 for quickly disconnecting the drive shaft 231 from the worm sleeve 24 to eliminate the inertia in the initial stage of mechanical braking.

[0022] See also Figure 2 , Figure 3 and Figure 4 , Figure 2 It is a schematic diagram of the partial explosion structure of the installation shell of the present invention; Figure 3 It is a schematic diagram of the bidirectional explosion structure of the installation shell of the present invention; Figure 4 for Figure 3 A is an enlarged view of the middle image.

[0023] The self-locking drive mechanism includes a limit frame 21, a limit frame 22, a worm gear 232, a double-axis linkage assembly and an axle pin 2323. The limit frame 21 is fixedly installed on both sides of the top of the self-locking seat 2, the limit frame 22 is fixedly installed on both sides of the top of the self-locking seat 2 and is located on the inner side of the limit frame 21, and the axle pin 2323 is provided with two groups and is rotatably installed inside the limit frame 22. The worm gear 232 is keyed to the surface of the axle pin 2323 and meshes with the worm sleeve 24. The double-axis linkage assembly is arranged on the axle pin 2323 and is used to transmit the driving force of the worm gear 232 to the two groups of transmission shafts 4. The limit frame 1 21 can limit the transmission shaft 4 and the axial rotation limit of the dual-axis linkage assembly. At the same time, the limit frame 22 can limit the axial rotation of the shaft pin 2323 to ensure that the worm wheel 232 is stably engaged with the worm sleeve 24. At the same time, the worm wheel 232 can be driven to rotate by the worm sleeve 24 through engagement with the worm sleeve 24, and then drive the dual-axis linkage assembly to rotate.

[0024] See also Figure 2 , Figure 3 and Figure 4 , Figure 2 It is a schematic diagram of the partial explosion structure of the installation shell of the present invention; Figure 3 It is a schematic diagram of the bidirectional explosion structure of the installation shell of the present invention; Figure 4 for Figure 3 A is an enlarged view of the middle image.

[0025] The double-axis linkage assembly includes a pinion 2321 and a large gear 2322. The pinion 2321 is fixedly mounted on the back of the worm gear 232 and is coaxial with the worm gear 232. The large gear 2322 is fixedly mounted on the surface of the transmission shaft 4. The transmission shaft 4 is rotatably mounted with the stop frame 22, and the large gear 2322 is meshed with the pinion 2321. The pinion 2321 can rotate with the worm gear 232, and then drive the transmission shaft 4 to rotate by meshing with the large gear 2322, so as to achieve the effect of synchronously driving the two sets of transmission shafts 4, so that the workshop can connect the two sets of transmission shafts 4 with different power according to the use requirements, and at the same time, the longitudinal driving source can be used to connect the driving shaft 231 with the longitudinal driving source to achieve a multi-end driving effect, which is convenient for adapting to the changes in the needs of workshop processing. The mechanical self-locking can be activated where the mechanical self-locking is required, and the driving shaft 231 can be directly connected when it is not necessary to ensure the precise driving performance of the torque motor.

[0026] See also Figure 5 Figure 6 and Figure 7 , Figure 5 It is a schematic diagram of a half-cut three-dimensional structure of a stable stand of the present invention; Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the coupled internal gear ring of the present invention; Figure 7 It is a schematic diagram of the explosion structure of the worm sleeve of the present invention.

[0027] The self-locking quick disconnect mechanism includes an electromagnetic push rod 2301, a lifting frame 2302, a coupling inner gear ring 2303, a connecting side plate 2304, a pressure ring 2305, a tooth groove 2306, an axial sliding limit assembly and a limit sliding ring 2308. The electromagnetic push rod 2301 is fixedly installed on the back of the stable stand 23, the lifting frame 2302 is slidably installed on the stable stand 23 and fixedly installed with the output end of the electromagnetic push rod 2301, the coupling inner gear ring 2303 is rotatably installed on the lifting frame 2302, and the inner side of the coupling inner gear ring 2303 is meshed with the tooth groove 2306, and the tooth groove 2306 is provided on the surface of the drive shaft 231 The top of the limit sliding ring 2308 is fixedly installed with the bottom of the coupling inner gear ring 2303 by bolts, the axial sliding limit assembly is arranged on the limit sliding ring 2308 and is used to axially slide and limit the worm sleeve 24 and the limit sliding ring 2308, so as to ensure that the limit sliding ring 2308 does not affect the rotation of the coupling inner gear ring 2303 when it is lifted or lowered, the connecting side plates 2304 are provided with two groups and are fixedly installed on both sides of the top of the jacking frame 2302, the two sides of the pressure ring 2305 are fixedly installed with the connecting side plates 2304 by bolts, and the bottom of the pressure ring 2305 is rotatably matched with the top of the coupling inner gear ring 2303; When self-locking and quick disconnection are required, the electromagnetic push rod 2301 is started to drive the lifting frame 2302 to move upward, and the electromagnetic driving characteristics of the electromagnetic push rod 2301 have a buffering effect and will not be rigidly lifted, and then the lifting frame 2302 drives the coupled inner gear ring 2303 to move upward, and the coupled inner gear ring 2303 drives the limiting sliding ring 2308 fixed thereto to move upward, and at the same time, the coupled inner gear ring 2303 moves upward to the height at which the tooth groove 2306 is separated. Since the coupled inner gear ring 2303 is separated from the tooth groove 2306 on the surface of the drive shaft 231, the drive shaft 231 under the action of inertia continues to rotate and cannot drive the coupled inner gear ring 2303 through the tooth groove 2306, thereby achieving a quick disconnection effect, and will not affect the devices operating at the output end of the transmission shaft 4. At this time, the drive shaft 231 can be quickly removed. 1 is connected with the worm sleeve 24 by inertia, so as to avoid the micro-motion of the torque motor body 1 affecting the worm sleeve 24 after the power is cut off, so that the worm sleeve 24 continues to rotate and the device connected to the output end in operation will not be affected by the micro-motion. When it is necessary to ensure that the transmission shaft 4 has a real-time self-locking effect when outputting, the above steps can be reversed to make the output end of the electromagnetic push rod 2301 drive the lifting frame 2302 downward, and cooperate with the connecting side plate 2304 to drive the pressure ring 2305 to press the coupling inner gear ring 2303 downward, so that it is engaged with the tooth groove 2306 on the output end surface of the driving shaft 231, so that the coupling inner gear ring 2303 can follow the selection of the driving shaft 231, and then drive the limiting sliding ring 2308 fixed thereto to rotate, and the limiting sliding ring 2308 drives the worm sleeve 24 to rotate through the axial sliding limiting component, and then starts the worm wheel 232 engaged therewith to rotate.

[0028] See also Figure 7 , Figure 7 It is a schematic diagram of the explosion structure of the worm sleeve of the present invention.

[0029] A rubber ring 23021 is fixedly installed on the top of the lifting frame 2302. The rubber ring 23021 is located outside the limit sliding ring 2308 and is used in conjunction with the bottom of the coupling inner gear ring 2303. The rubber ring 23021 can provide a certain buffer when the lifting frame 2302 is lifted upward, avoiding damage to the lifting frame 2302 due to rigid pulling, and improving the service life of the lifting frame 2302.

[0030] See also Figure 7 , Figure 7 It is a schematic diagram of the explosion structure of the worm sleeve of the present invention.

[0031] The axial sliding limit assembly includes a sliding groove 2307 and a limit bar 23071. The sliding groove 2307 is provided at the top four corners of the outer surface of the worm sleeve 24. The limit bar 23071 is fixedly mounted on the inner side of the limit sliding ring 2308 and slides with the sliding groove 2307. The limit bar 23071 can drive the sliding groove 2307 to rotate through the limit sliding ring 2308, and then drive the worm sleeve 24 to rotate through the sliding groove 2307, so that the worm sleeve 24 can drive the worm wheel 232 meshing therewith.

[0032] See also Figure 1 , Figure 1 It is a structural schematic diagram of the present invention.

[0033] The installation angle adjustment component is used to adjust the installation angle of the self-locking seat 2 and change the driving direction of the transmission shaft 4; the installation angle adjustment component includes a positioning bolt 201 and a positioning hole 202. The positioning bolt 201 is threadedly connected to the front and rear sides of the top of the self-locking seat 2. There are multiple positioning holes 202, which are equidistantly arranged in a ring shape on the top of the torque motor body 1 and threadedly matched with the positioning bolt 201. The positioning bolt 201 can be rotated according to the installation requirements to adapt the angle of the self-locking seat 2 after the torque motor body 1 is fixed, and then the positioning bolt 201 and the positioning hole 202 are fixed by thread connection at the required angle, which can adapt to the installation requirements of the workshop equipment.

[0034] See also Figure 5 and Figure 7 , Figure 5 It is a schematic diagram of a half-cut three-dimensional structure of a stable stand of the present invention; Figure 7 It is a schematic diagram of the explosion structure of the worm sleeve of the present invention.

[0035] A limit ring 241 is fixedly installed at the bottom of the outer surface of the worm sleeve 24, and a limit hoop 2313 located at the top of the limit ring 241 and rotatingly cooperating with the worm sleeve 24 is fixedly installed at the bottom of the stable stand 23 near the worm sleeve 24. The limit ring 241 can cooperate with the limit hoop 2313 to keep the worm sleeve 24 stable during rotation without up and down fluctuations, thereby ensuring the driving stability of the worm wheel 232, and preventing the lifting frame 2302 from pulling the limit sliding ring 2308 upward to pull the worm sleeve 24 upward after long-term operation, thereby affecting the driving stability of the worm wheel 232.

[0036] See also Figure 7 , Figure 7 It is a schematic diagram of the explosion structure of the worm sleeve of the present invention.

[0037] A limit groove 2311 is fixedly installed on the top of the back of the stabilizing frame 23, and a stabilizing frame 2312 is provided inside the stabilizing frame 23 to slide with the lifting frame 2302. The lifting frame 2302 slides with the stabilizing frame 2312. The limit groove 2311 and the stabilizing frame 2312 can make the lifting frame 2302 tilt in one direction during the up and down movement, ensuring the stability of the lifting resistance on both sides of the lifting frame 2302, and avoiding the phenomenon of the lifting frame 2302 tilting and getting stuck.

[0038] See also Figure 1-7 , Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the partial explosion structure of the installation shell of the present invention; Figure 3 It is a schematic diagram of the bidirectional explosion structure of the installation shell of the present invention; Figure 4 for Figure 3 A magnified view of middle; Figure 5 It is a schematic diagram of a half-cut three-dimensional structure of a stable stand of the present invention; Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the coupled internal gear ring of the present invention; Figure 7 It is a schematic diagram of the explosion structure of the worm sleeve of the present invention.

[0039] Working principle: When the torque motor body 1 is running, the torque motor body 1 drives the driving shaft 231 to rotate, and the worm sleeve 24 on the driving shaft 231 rotates accordingly, and the worm sleeve 24 drives the worm wheel 232 meshing therewith to rotate around the shaft pin 2323; A pinion 2321 is coaxially fixedly installed on the back of the worm gear 232, and the pinion 2321 meshes with a large gear 2322 fixed on the surface of the transmission shaft 4; as the worm gear 232 rotates, the pinion 2321 drives the large gear 2322 to rotate, and then drives the transmission shaft 4 to rotate, achieving a synchronous driving effect on the two sets of transmission shafts 4. In this way, the workshop can make different power connections to the two sets of transmission shafts 4 according to the use requirements, and can also use the longitudinal drive source to connect with the drive shaft 231 to achieve the purpose of multi-end drive to adapt to the changes in the workshop's processing requirements; when mechanical self-locking is required, the mechanism is enabled, and when not required, the drive shaft 231 is directly connected to ensure the precise driving performance of the motor.

[0040] Disconnection operation: When it is necessary to quickly disconnect to eliminate inertia, the electromagnetic push rod 2301 fixed on the back of the stabilizing frame 23 is started; the output end of the electromagnetic push rod 2301 drives the lifting frame 2302 fixed thereto to slide upward, and the lifting frame 2302 and the stabilizing frame 23 are slidably matched through the stabilizing frame 2312 opened, and the limiting groove 2311 on the back ensures that it is unidirectionally tilted by force during the up and down movement to avoid jamming.

[0041] The lifting frame 2302 drives the coupling inner gear ring 2303 rotatably installed thereon to move upward, and the inner side of the coupling inner gear ring 2303 is separated from the tooth groove 2306 opened on the top of the surface of the driving shaft 231. At the same time, the limiting sliding ring 2308 fixed to the bottom of the coupling inner gear ring 2303 by bolts also moves upward; the limiting strip 23071 on the inner side of the limiting sliding ring 2308 is slidably matched with the sliding grooves 2307 opened at the four corners of the top of the outer surface of the worm sleeve 24. This structure ensures that the limiting sliding ring 2308 does not affect the rotation of the coupling inner gear ring 2303 when it is raised or lowered, but can enable the coupling inner gear ring 2303 to drive the limiting sliding ring 2308 to move upward, thereby quickly cutting off the connection between the driving shaft 231 and the worm sleeve 24, removing the micro-motion that may be caused by inertia, and avoiding the micro-motion of the torque motor body 1 after power is cut off. Impact on the operating device.

[0042] Restore connection operation: If the output of the transmission shaft 4 is to be restored and the real-time self-locking effect is to be ensured, the operation is performed in the reverse direction; the output end of the electromagnetic push rod 2301 drives the lifting frame 2302 downward, and the lifting frame 2302 drives the pressure ring 2305 through the connecting side plates 2304 on both sides to press the coupling inner gear ring 2303 downward, so that the coupling inner gear ring 2303 re-engages with the tooth groove 2306 on the output end surface of the drive shaft 231, so that the coupling inner gear ring 2303 can rotate with the drive shaft 231, and then drive the limiting sliding ring 2308 fixed thereto to rotate, and the limiting sliding ring 2308 drives the worm sleeve 24 to rotate with the aid of the axial sliding limiting assembly, and the worm sleeve 24 then drives the worm wheel 232 engaged therewith to rotate, thereby realizing power transmission recovery and self-locking functions.

[0043] The rubber ring 23021 on the top of the lifting frame 2302 is located on the outside of the limiting sliding ring 2308 and cooperates with the bottom of the coupling inner gear ring 2303 to provide a buffer during the lifting process to prevent the lifting frame 2302 from being damaged by rigid pulling.

[0044] Installation angle adjustment component working process: The positioning bolt 201 is threadedly connected to the front and rear sides of the top of the self-locking seat 2, and a plurality of positioning holes 202 are equidistantly provided in a ring shape on the top of the torque motor body 1; according to the installation requirements of the workshop equipment, the positioning bolt 201 is rotated, and the installation angle of the self-locking seat 2 is adaptively twisted. After adjusting into place, the positioning bolt 201 is threadedly connected and fixed with the corresponding positioning hole 202, so as to change the driving direction of the transmission shaft 4 to meet the requirements of different equipment layouts and operation.

[0045] Overall collaborative work: When the motor is operating normally, the mechanical self-locking drive mechanism drives the transmission shaft 4 through the worm sleeve 24, the worm wheel 232 and the dual-axis linkage assembly to meet various power transmission needs of the workshop; when an emergency stop is required or micro-motion after power failure is prevented, the self-locking quick disconnect mechanism responds quickly to cut off the inertial connection between the drive shaft 231 and the worm sleeve 24; and the installation angle adjustment assembly can flexibly adjust the angle of the self-locking seat 2 and related components during the initial installation of the equipment or subsequent modifications, so that the entire torque motor system can better adapt to the complex and changeable workshop production environment and ensure stable and precise operation.

[0046] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A torque motor with a self-locking structure, comprising a torque motor body (1), a self-locking seat (2) detachably mounted on the top of the torque motor body (1), a mounting shell (3) detachably mounted on the top of the self-locking seat (2), a driving shaft (231) whose rotating rod is mounted at the center of the mounting shell (3) and fixed to the output end of the torque motor body (1), and two groups of transmission shafts (4) arranged crosswise with the driving shaft (231), the two groups of transmission shafts (4) being symmetrically mounted on both sides of the driving shaft (231) and rotatably mounted inside the mounting shell (3), a surface rotating sleeve of the driving shaft (231) being provided with a worm sleeve (24), characterized in that: It also includes a mechanical self-locking drive mechanism, which is arranged inside the mounting shell (3) and is used to mechanically self-lock the rotation of the drive shaft (231); A stable stand (23) fixedly mounted at the top center of the self-locking seat (2), wherein the stable stand (23) is provided with a self-locking quick disconnect mechanism for quickly disconnecting the drive shaft (231) from the worm sleeve (24) to eliminate the inertia at the initial stage of mechanical braking; The installation angle adjustment component is used to adjust the installation angle of the self-locking seat (2) and change the driving direction of the transmission shaft (4).

2. The torque motor with a self-locking structure according to claim 1, characterized in that: The self-locking drive mechanism comprises a first limiting frame (21), a second limiting frame (22), a worm wheel (232), a double-axis linkage assembly and an axle pin (2323); the first limiting frame (21) is fixedly mounted on both sides of the top of the self-locking seat (2); the second limiting frame (22) is fixedly mounted on both sides of the top of the self-locking seat (2) and is located inside the first limiting frame (21); two groups of the axle pins (2323) are provided and are rotatably mounted inside the second limiting frame (22); the worm wheel (232) is keyed to the surface of the axle pin (2323) and meshes with the worm sleeve (24); and the double-axis linkage assembly is arranged on the axle pin (2323) and is used to transmit the driving force of the worm wheel (232) to the two groups of transmission shafts (4).

3. The torque motor with a self-locking structure according to claim 2, characterized in that: The dual-axis linkage assembly comprises a pinion (2321) and a large gear (2322); the pinion (2321) is fixedly mounted on the back of the worm gear (232) and is coaxial with the worm gear (232); the large gear (2322) is fixedly mounted on the surface of a transmission shaft (4); the transmission shaft (4) is rotatably mounted on a second limiting frame (22); and the large gear (2322) is meshed with the pinion (2321).

4. The torque motor with a self-locking structure according to claim 1, characterized in that: The self-locking quick disconnect mechanism comprises an electromagnetic push rod (2301), a lifting frame (2302), a coupling inner gear ring (2303), a connecting side plate (2304), a pressure ring (2305), a tooth groove (2306), an axial sliding limit assembly and a limit sliding ring (2308), wherein the electromagnetic push rod (2301) is fixedly mounted on the back of the stable stand (23), the lifting frame (2302) is slidably mounted on the stable stand (23) and fixedly mounted on the output end of the electromagnetic push rod (2301), the coupling inner gear ring (2303) is rotatably mounted on the lifting frame (2302), and the inner side of the coupling inner gear ring (2303) is meshed with the tooth groove (2306), and the tooth groove (2306) is provided on the drive shaft (2308). 31) surface, the top of the limit sliding ring (2308) is fixedly installed with the bottom of the coupling inner gear ring (2303) by bolts, the axial sliding limit assembly is arranged on the limit sliding ring (2308) and is used to axially slide and limit the worm sleeve (24) and the limit sliding ring (2308), so as to ensure that the limit sliding ring (2308) does not affect the rotation of the coupling inner gear ring (2303) when it is lifted or lowered, the connecting side plates (2304) are provided with two groups and are fixedly installed on both sides of the top of the lifting frame (2302), the two sides of the pressure ring (2305) are fixedly installed with the connecting side plates (2304) by bolts, and the bottom of the pressure ring (2305) is rotatably matched with the top of the coupling inner gear ring (2303).

5. The torque motor with a self-locking structure according to claim 4, characterized in that: A rubber ring (23021) is fixedly mounted on the top of the lifting frame (2302), and the rubber ring (23021) is located on the outside of the limiting sliding ring (2308) and is used in conjunction with the bottom of the coupling inner gear ring (2303).

6. The torque motor with a self-locking structure according to claim 4, characterized in that: The axial sliding limit assembly comprises a sliding groove (2307) and a limit strip (23071), wherein the sliding groove (2307) is provided at the top four corners of the outer surface of the worm sleeve (24), and the limit strip (23071) is fixedly mounted on the inner side of the limit sliding ring (2308) and is slidably matched with the sliding groove (2307).

7. The torque motor with a self-locking structure according to claim 1, characterized in that: The installation angle adjustment assembly comprises a positioning bolt (201) and a positioning hole (202); the positioning bolt (201) is threadedly connected to the front and rear sides of the top of the self-locking seat (2); a plurality of positioning holes (202) are provided, and are annularly arranged at equal distances on the top of the torque motor body (1) and threadedly matched with the positioning bolt (201).

8. The torque motor with a self-locking structure according to claim 1, characterized in that: A limit ring (241) is fixedly mounted on the bottom of the outer surface of the worm sleeve (24), and a limit hoop (2313) located on the top of the limit ring (241) and rotatably engaged with the worm sleeve (24) is fixedly mounted on the bottom of the stabilizing stand (23) on one side close to the worm sleeve (24).

9. The torque motor with a self-locking structure according to claim 4, characterized in that: A limiting groove (2311) is fixedly installed at the top of the back of the stabilizing stand (23), and a stabilizing frame (2312) that slidably cooperates with the lifting frame (2302) is provided inside the stabilizing stand (23), and the lifting frame (2302) slidably cooperates with the stabilizing frame (2312).

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