A torque motor with a self-locking structure

Abstract

The present invention provides a torque motor with a self-locking structure, which includes a torque motor body, a self-locking seat detachably installed on the top of the torque motor body, a mounting shell detachably installed on the top of the self-locking seat, a rotating rod installed at the center inside the mounting shell and a driving shaft fixed to the output end of the torque motor body, and two groups of transmission shafts arranged crosswise with the driving shaft. The present invention can quickly disconnect the self-locking structure from the motor output end, and can perform subsequent angle installation adaptation and output end orientation adaptation according to the installation position, so as to solve the problems that the existing torque motors cannot adjust the driving requirements according to the installation environment; have poor adjustability in the later stage under the limitation of the fixed installation position, cannot improve their applicable range, and have poor adaptability to equipment with large changes in the assembly line; there is slight movement after the motor is powered off during self-locking, and it cannot be quickly disconnected, affecting the driving and locking stability.

Description

Technical Field

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

[0002] In terms of electromagnetic principles, torque motors are similar to ordinary motors. It is also based on the law of electromagnetic induction, and generates torque through the interaction of the magnetic field between the stator winding and the rotor. However, torque motors pay more attention to the optimization of torque characteristics in design.

[0003] For example, its rotor usually adopts a special structure. Like a permanent magnet torque motor, the pole distribution and shape of the permanent magnets on its rotor are carefully designed to improve the utilization efficiency of the magnetic field, so as to generate a large torque at a relatively low speed. Moreover, the stator winding of the torque motor will also be designed according to the required torque characteristics, and by adjusting parameters such as the number of turns of the winding and the wire diameter, to meet the requirements of torque and current for different application scenarios.

[0004] In the existing technology, torque motors have the following defects:

[0005] First, under the limitation of the fixed installation position, the later adjustability is poor, the applicable range cannot be increased, and the adaptability is poor on equipment with large changes in the production line;

[0006] Second, when self-locking, there is slight movement after the motor is powered off, and it cannot be quickly disconnected, affecting the driving and locking stability.

[0007] The above-mentioned slight movement means that even though the mechanical braking component has come into contact, due to the inertia of the motor output shaft and the connected load, according to Newton's first law, they will maintain their original motion state. Therefore, at the initial stage of braking, the output shaft may continue to rotate a small distance due to inertia, which is the so-called slight movement. The amplitude and duration of this slight movement are related to the inertia of the load and the speed at which the braking device generates friction. If the load inertia is very large, such as large rotating machinery, the slight movement may be more obvious and the duration will be longer, which will cause moving damage to the device that needs to be braked and self-locked. Summary of the Invention

[0008] Aiming at the deficiencies of the existing technology, 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 end, and can perform angle installation adaptation and output end orientation adaptation later according to the installation position, so as to solve the problem that the existing torque motor cannot be adjusted according to the installation environment for driving requirements; under the limitation of the fixed installation position, the later adjustability is poor, the applicable range cannot be increased, and the adaptability is poor on equipment with large changes in the production line; when self-locking, there is slight movement after the motor is powered off, and it cannot be quickly disconnected, affecting the driving and locking stability.

[0009] To achieve the above object, the present invention is realized through the following technical solutions: 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 rotatably mounted at the center inside 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 worm gear sleeve is rotatably sleeved on the surface of the driving shaft. A mechanical self-locking driving mechanism is further included, which is arranged inside the mounting shell and used for mechanically self-locking the rotation of the driving shaft.

[0010] A stable vertical frame fixedly mounted at the center of the top of the self-locking seat. A self-locking quick disconnection mechanism is arranged on the stable vertical frame and used for quickly disconnecting the driving shaft from the worm gear sleeve to eliminate the inertia at the initial stage of mechanical braking.

[0011] An installation angle adjustment component is used for adjusting the installation angle of the self-locking seat and changing the driving direction of the transmission shaft.

[0012] Furthermore, the self-locking driving mechanism includes a first limiting frame, a second limiting frame, a worm gear, a double-shaft linkage component, and a shaft pin. The first limiting frame is fixedly mounted on both sides of the top of the self-locking seat. The second limiting frame is fixedly mounted on both sides of the top of the self-locking seat and located inside the first limiting frame. Two groups of shaft pins are rotatably mounted inside the second limiting frame. The worm gear is key-connected to the surface of the shaft pin and meshes with the worm gear sleeve. The double-shaft linkage component is arranged on the shaft pin and used for transmitting the driving force of the worm gear to the two groups of transmission shafts.

[0013] Furthermore, the double-shaft linkage component includes a small gear and a large gear. The small gear is fixedly mounted on the back of the worm gear and coaxial with the worm gear. The large gear is fixedly mounted on the surface of the transmission shaft. The transmission shaft is rotatably mounted with the second limiting frame. The large gear meshes with the small gear.

[0014] Further, the self-locking quick disconnection mechanism includes an electromagnetic push rod, a jacking frame, a coupling internal gear ring, a connecting side plate, a pressing ring, a tooth groove, an axial sliding limit component, and a limit sliding ring. The electromagnetic push rod is fixedly installed on the back of the stable vertical frame. The jacking frame is slidably installed on the stable vertical frame and fixedly installed with the output end of the electromagnetic push rod. The coupling internal gear ring is rotatably installed on the jacking frame, and the inner side of the coupling internal gear ring meshes with the tooth groove. The tooth groove is opened at the top of the surface of the driving shaft. The top of the limit sliding ring is fixedly installed with the bottom of the coupling internal gear ring through bolts. The axial sliding limit component is arranged on the limit sliding ring and is used for axially slidingly limiting the worm sleeve and the limit sliding ring, ensuring that the rotation of the coupling internal gear ring is not affected when the limit sliding ring moves up and down. There are two groups of connecting side plates, which are fixedly installed on both sides of the top of the jacking frame. The two sides of the pressing ring are fixedly installed with the connecting side plate through bolts. The bottom of the pressing ring is rotationally matched with the top of the coupling internal gear ring.

[0015] Further, a rubber ring is fixedly installed on the top of the jacking frame. The rubber ring is located outside the limit sliding ring and is used in cooperation with the bottom of the coupling internal gear ring.

[0016] Further, the axial sliding limit component includes a sliding groove and a limit strip. The sliding groove is opened at the four corners of the top of the outer surface of the worm sleeve. The limit strip is fixedly installed on the inner side of the limit sliding ring and is slidably matched with the sliding groove.

[0017] Further, the installation angle adjustment component includes a positioning bolt and a positioning hole. The positioning bolt is threadedly connected to the front side and the rear side of the top of the self-locking seat. There are multiple positioning holes, which are annularly and equidistantly opened on the top of the torque motor body and are threadedly matched with the positioning bolt.

[0018] Further, a limit ring is fixedly installed on the bottom of the outer surface of the worm sleeve. A limit retaining hoop that is located above the limit ring and is rotationally matched with the worm sleeve is fixedly installed on the bottom of the stable vertical frame close to the worm sleeve.

[0019] Further, a limit groove is fixedly installed on the top of the back of the stable vertical frame. A stable frame that is slidably matched with the jacking frame is opened inside the stable vertical frame. The jacking frame is slidably matched with the stable frame.

[0020] Advantages of the present invention: The present invention realizes multi-directional power transmission through two groups of cross-interlaced drive shafts, meeting the diverse power layout requirements. At the same time, through the self-locking drive mechanism, the worm sleeve continues to rotate so that the devices connected to the output end during operation are not affected by micro-movements. And when ensuring the output of the drive shaft, there is a real-time self-locking effect. Moreover, through the setting of the self-locking quick disconnection mechanism, when the motor needs to stop urgently or switch to specific working conditions, the power connection can be quickly cut off, avoiding excessive wear and impact of equipment components due to factors such as inertia, and preventing adverse effects on the related devices during operation caused by subsequent unnecessary movements. Brief Description of the Drawings

[0021] By reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, other features, objects, and advantages of the present invention will become more apparent:

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 is a partially exploded structural diagram of the installation shell of the present invention;

[0024] Figure 3 is a two-way exploded structural diagram of the installation shell of the present invention;

[0025] Figure 4 is Figure 3 an enlarged view of A in

[0026] Figure 5 is a semi-sectioned three-dimensional structural diagram of the stable support frame of the present invention;

[0027] Figure 6 is an exploded three-dimensional structural diagram of the coupling internal gear ring of the present invention;

[0028] Figure 7 is an exploded structural diagram of the worm sleeve of the present invention.

[0029] In the figure: 1. Torque motor body; 2. Self-locking seat; 201. Positioning bolt; 202. Positioning hole; 21. Limiting frame one; 22. Limiting frame two; 23. Stable support frame; 231. Drive shaft; 232. Worm gear; 2321. Small gear; 2322. Large gear; 2323. Axle pin; 2301. Electromagnetic push rod; 2302. Lifting frame; 23021. Rubber ring; 2303. Coupling internal gear ring; 2304. Connection side plate; 2305. Pressure ring; 2306. Tooth groove; 2307. Sliding groove; 23071. Limiting strip; 2308. Limiting sliding ring; 2311. Limiting groove; 2312. Stable frame; 2313. Limiting hoop; 24. Worm sleeve; 241. Limiting ring; 3. Installation shell; 4. Drive shaft. Detailed Embodiments

[0030] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0031] Please refer to Figure 1 and Figure 4 , Figure 1 which is a structural schematic diagram of the present invention; Figure 4 is Figure 3 an enlarged view of A in

[0032] A torque motor with a self-locking structure includes a torque motor body 1, a self-locking seat 2 detachably installed on the top of the torque motor body 1, an installation shell 3 detachably installed on the top of the self-locking seat 2, a driving shaft 231 with a rotating rod installed at the center inside the installation 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 installed on both sides of the driving shaft 231 and rotatably installed inside the installation shell 3. A worm gear sleeve 24 is rotatably sleeved on the surface of the driving shaft 231. It also includes a mechanical self-locking driving mechanism arranged inside the installation shell 3 and used for mechanically self-locking the rotation of the driving shaft 231.

[0033] A stable vertical frame 23 is fixedly installed at the center of the top of the self-locking seat 2. A self-locking quick disconnection mechanism is arranged on the stable vertical frame 23 and used for quickly disconnecting the driving shaft 231 from the worm gear sleeve 24 to eliminate the inertia at the initial stage of mechanical braking.

[0034] Please refer to Figure 2 , Figure 3 and Figure 4 , Figure 2 which is a partial exploded structural schematic diagram of the installation shell of the present invention; Figure 3 which is a two-way exploded structural schematic diagram of the installation shell of the present invention; Figure 4 is Figure 3 an enlarged view of A in

[0035] The self-locking drive mechanism includes a first limiting frame 21, a second limiting frame 22, a worm gear 232, a double-shaft linkage assembly, and a shaft pin 2323. The first limiting frame 21 is fixedly installed on both sides of the top of the self-locking seat 2. The second limiting frame 22 is fixedly installed on both sides of the top of the self-locking seat 2 and is located inside the first limiting frame 21. There are two sets of shaft pins 2323, which are rotatably installed inside the second limiting frame 22. The worm gear 232 is key-connected to the surface of the shaft pin 2323 and meshes with the worm gear sleeve 24. The double-shaft linkage assembly is arranged on the shaft pin 2323 and is used to transmit the driving force of the worm gear 232 to the two sets of transmission shafts 4. The first limiting frame 21 can limit the transmission shaft 4 and axially rotate and limit the double-shaft linkage assembly. At the same time, the second limiting frame 22 can axially rotate and limit the shaft pin 2323 to ensure that the worm gear 232 stably meshes with the worm gear sleeve 24. At the same time, the worm gear 232 can be driven to rotate by the worm gear sleeve 24 through meshing with the worm gear sleeve 24, and then drive the double-shaft linkage assembly to rotate.

[0036] Please refer to Figure 2 , Figure 3 and Figure 4 , Figure 2 which is a partial explosion structure schematic diagram of the installation shell of the present invention; Figure 3 which is a two-way explosion structure schematic diagram of the installation shell of the present invention; Figure 4 is Figure 3 the enlarged view of A in

[0037] The double-shaft linkage assembly includes a small gear 2321 and a large gear 2322. The small gear 2321 is fixedly installed on the back of the worm gear 232 and is coaxial with the worm gear 232. The large gear 2322 is fixedly installed on the surface of the transmission shaft 4. The transmission shaft 4 is rotatably installed with the second limiting frame 22, and the large gear 2322 meshes with the small gear 2321. The small gear 2321 can rotate following the worm gear 232, and then drive the transmission shaft 4 to rotate through meshing with the large gear 2322, achieving the effect of synchronously driving the two sets of transmission shafts 4, enabling the workshop to perform different power connections for the two sets of transmission shafts 4 according to usage requirements. At the same time, the longitudinal drive source can be utilized again, connecting the drive shaft 231 with the longitudinal drive source to achieve the multi-end drive effect, facilitating adaptation to the changing needs of workshop processing. Mechanical self-locking can be activated where mechanical self-locking is required, and the drive shaft 231 can be directly connected when it is not needed to ensure the precise driving performance of the torque motor.

[0038] Please refer to Figure 5 Figure 6 and Figure 7 , Figure 5 which is a semi-section three-dimensional structure schematic diagram of the stable vertical frame of the present invention; Figure 6 which is a three-dimensional explosion structure schematic diagram of the coupling internal gear ring of the present invention; Figure 7 which is an explosion structure schematic diagram of the worm gear sleeve of the present invention.

[0039] 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;

[0040] 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.

[0041] See also Figure 7 , Figure 7 It is a schematic diagram of the explosion structure of the worm sleeve of the present invention.

[0042] 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.

[0043] See also Figure 7 , Figure 7 It is a schematic diagram of the explosion structure of the worm sleeve of the present invention.

[0044] 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.

[0045] See also Figure 1 , Figure 1 It is a schematic diagram of the structure of the present invention.

[0046] 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.

[0047] 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.

[0048] A limiting ring 241 is fixedly installed at the bottom of the outer surface of the worm sleeve 24. A limiting hoop 2313 which is located at the top of the limiting ring 241 and is rotationally matched with the worm sleeve 24 is fixedly installed at the bottom of the stable vertical frame 23 close to the worm sleeve 24. The limiting ring 241 can cooperate with the limiting hoop 2313 to keep the worm sleeve 24 stable when rotating, without fluctuating up and down, thereby ensuring the driving stability of the worm wheel 232. At the same time, it can prevent the jacking frame 2302 which is pulled upward from driving the limiting sliding ring 2308 to pull the worm sleeve 24 upward after long-term operation, affecting the driving stability of the worm wheel 232.

[0049] Please refer to Figure 7 , Figure 7 which is the schematic exploded view of the worm sleeve of the present invention.

[0050] A limiting groove 2311 is fixedly installed at the top of the back surface of the stable vertical frame 23. A stable frame 2312 which is slidably matched with the jacking frame 2302 is provided inside the stable vertical frame 23, and the jacking frame 2302 is slidably matched with the stable frame 2312. The limiting groove 2311 and the stable frame 2312 can enable the jacking frame 2302 to be inclined under a single-direction force during the up and down movement, ensuring the stability of the jacking resistance on both sides of the jacking frame 2302 and avoiding the phenomenon that the jacking frame 2302 is inclined and jammed.

[0051] Please refer to Figure 1-7 , Figure 1 which is the schematic structure view of the present invention; Figure 2 which is the schematic exploded view of the partial installation shell of the present invention; Figure 3 which is the schematic double-exploded view of the installation shell of the present invention; Figure 4 is Figure 3 the enlarged view of A in Figure 5 which is the schematic semi-sectional three-dimensional structure view of the stable vertical frame of the present invention; Figure 6 which is the schematic exploded three-dimensional structure view of the coupling internal gear ring of the present invention; Figure 7 which is the schematic exploded view of the worm sleeve of the present invention.

[0052] Working principle: When the torque motor body 1 operates, the torque motor body 1 drives the drive shaft 231 to rotate, and the worm sleeve 24 on the drive shaft 231 rotates accordingly. The worm sleeve 24 drives the worm wheel 232 meshed with it to rotate around the pivot pin 2323;

[0053] A small gear 2321 is coaxially and fixedly installed on the back of the worm gear 232. The small gear 2321 meshes with a large gear 2322 fixed on the surface of the transmission shaft 4. As the worm gear 232 rotates, the small gear 2321 drives the large gear 2322 to rotate, thereby driving the transmission shaft 4 to rotate, achieving the synchronous driving effect of the two groups of transmission shafts 4. In this way, the workshop can make different power connections to the two groups of transmission shafts 4 according to the usage requirements, and can also use the longitudinal drive source to be connected to the drive shaft 231 to achieve the purpose of multi-end drive to adapt to the changes in the processing requirements of the workshop. When mechanical self-locking is required, this mechanism is enabled, and when not needed, the drive shaft 231 is directly connected to ensure the accurate driving performance of the motor.

[0054] Disconnection operation:

[0055] When quick disconnection is required to eliminate inertia, start the electromagnetic push rod 2301 fixed on the back of the stable stand 23. The output end of the electromagnetic push rod 2301 drives the lifting frame 2302 fixed thereto to slide upward. The lifting frame 2302 is slidably matched with the stable stand 23 through the opened stable frame 2312, and the limiting groove 2311 on the back ensures that it is inclined under a single force during the up and down movement to avoid jamming.

[0056] The lifting frame 2302 drives the coupling internal gear ring 2303 rotatably installed thereon to move upward. The inner side of the coupling internal gear ring 2303 is separated from the tooth groove 2306 opened at the top of the surface of the drive shaft 231. At the same time, the limiting sliding ring 2308 fixed to the bottom of the coupling internal 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 outer surface of the top of the worm gear sleeve 24. This structure ensures that the limiting sliding ring 2308 does not affect the rotation of the coupling internal gear ring 2303 when lifting and lowering, but can make the coupling internal gear ring 2303 drive the limiting sliding ring 2308 to move upward, thereby quickly cutting off the connection between the drive shaft 231 and the worm gear sleeve 24, removing the micro-movement that may be caused by inertia, and avoiding the influence of the micro-movement of the torque motor body 1 on the working device after power-off.

[0057] Reconnection operation:

[0058] If it is necessary to restore the output of the transmission shaft 4 and ensure the real-time self-locking effect, perform the reverse operation. The output end of the electromagnetic push rod 2301 drives the lifting frame 2302 downward. The lifting frame 2302 drives the pressing ring 2305 to press the coupling internal gear ring 2303 downward through the connecting side plates 2304 on both sides, so that the coupling internal gear ring 2303 is re-engaged with the tooth groove 2306 on the surface of the output end of the drive shaft 231. In this way, the coupling internal gear ring 2303 can follow the rotation of the drive shaft 231, and then drive the limiting sliding ring 2308 fixed thereto to rotate. The limiting sliding ring 2308 drives the worm gear sleeve 24 to rotate through the axial sliding limiting component, and the worm gear sleeve 24 then drives the worm gear 232 meshing with it to rotate, realizing the restoration of power transmission and the self-locking function.

[0059] The rubber ring 23021 at the top of the jacking frame 2302 is located outside the limit sliding ring 2308 and cooperates with the bottom of the coupling internal gear ring 2303 to provide buffering during the jacking process and prevent rigid hard pulling from damaging the jacking frame 2302.

[0060] Working process of the installation angle adjustment component:

[0061] The positioning bolts 201 are threadedly connected to the front and rear sides of the top of the self-locking seat 2. A plurality of positioning holes 202 are equidistantly arranged in a ring shape at the top of the torque motor body 1; according to the installation requirements of the workshop equipment, rotate the positioning bolts 201, adaptively twist and install the self-locking seat 2 at an angle, and after adjustment, threadedly connect and fix the positioning bolts 201 with the corresponding positioning holes 202, so as to change the driving direction of the transmission shaft 4 and meet the requirements of different equipment layouts and operations.

[0062] Overall collaborative work:

[0063] When the motor is running normally, the mechanical self-locking drive mechanism drives the transmission shaft 4 through the worm sleeve 24, the worm wheel 232 and the double-shaft linkage component to meet the various power transmission requirements of the workshop; when an emergency stop is required or to prevent slight movement after power failure, the self-locking quick disconnection mechanism responds quickly and cuts off the inertial connection between the drive shaft 231 and the worm sleeve 24; while the installation angle adjustment component can flexibly adjust the angles of the self-locking seat 2 and related components during the initial installation or subsequent transformation of the equipment, so that the entire torque motor system can better adapt to the complex and changeable workshop production environment and ensure stable and accurate operation.

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0065] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments 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; An 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 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).

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: 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).

5. The torque motor with a self-locking structure according to claim 1, 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).

6. 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).

7. 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).

8. The torque motor with a self-locking structure according to claim 1, 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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