A low-vibration, high-torque stepper motor

Abstract

The invention relates to the field of motor technology, and discloses a low-vibration, high-torque stepper motor, which solves the problem that the output end of the stepper motor and the external transmission shaft are not in a coaxial state, which will cause a certain vibration in the connection part between the output end of the stepper motor and the external transmission shaft. The invention comprises a stepper motor body and an adjustment shell, wherein the adjustment shell is provided with a disassembly and assembly unit adapted to the stepper motor body, the adjustment shell is a cavity structure with an opening at one end, an adjustment disk is provided in the adjustment shell, a rotating shaft connected in rotation passes through the adjustment disk, a support frame is provided on the external rotating sleeve of the rotating shaft, and the support frame is fixedly connected to the inner wall of the adjustment shell; the output end of the stepper motor body and the rotating shaft are connected by a plug-in connector; it is ensured that the connecting shaft and the external transmission shaft are in a coaxial state, thereby avoiding vibration caused by non-coaxiality, thereby protecting the stepper motor body and the external production equipment to be driven.

Description

Technical Field

[0001] The invention belongs to the technical field of motors, and in particular relates to a low-vibration, high-torque stepping motor. Background Art

[0002] A high-torque stepper motor is a type of torque motor, which is a special motor with a large number of poles. In the prior art search, a Chinese patent with a publication number of CN221597589U discloses a low-vibration high-torque stepper motor, which can play a limited vibration reduction role between the bearing groove and the bearing by setting a vibration reduction gasket, a first vibration reduction gasket and a second vibration reduction gasket, and can reduce the vibration transmitted to the front cover and the housing, thereby playing a vibration reduction role to a certain extent;

[0003] But it is worth thinking about that when the output end of the stepper motor and the external transmission shaft are connected, if the two are not in a coaxial state, it will cause certain vibrations at the connection point between the output end of the stepper motor and the external transmission shaft, which will not only damage itself, but also damage the external production equipment that needs to be driven.

[0004] Therefore, in order to solve the above problems, a related facility that better meets the usage requirements is needed. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a low-vibration, high-torque stepper motor, which effectively solves the problem that the output end of the stepper motor and the external transmission shaft in the above background technology are not in a coaxial state, which will cause a certain vibration at the connection part between the output end of the stepper motor and the external transmission shaft.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-vibration high-torque stepper motor, comprising a stepper motor body and an adjustment shell, the adjustment shell being equipped with a disassembly and assembly unit adapted to the stepper motor body, the adjustment shell being a cavity structure with one end open, an adjustment disk being arranged in the adjustment shell, a rotating shaft rotatably connected to the adjustment disk being penetrated, a support frame being arranged on the outer rotating sleeve of the rotating shaft, and the support frame being fixedly connected to the inner wall of the adjustment shell;

[0007] The output end of the stepper motor body is connected to the rotating shaft through a connector, a connecting shaft is provided on the side of the adjustment disk away from the stepper motor body, the adjustment disk is equipped with a belt transmission adjustment structure respectively matched with the rotating shaft and the connecting shaft, and the adjustment shell is equipped with a positioning mechanism matched with the adjustment disk.

[0008] Preferably, the belt transmission adjustment structure includes a first movable shell, a second movable shell and a synchronous toothed belt which are arranged on a side of an adjustment disk away from a stepper motor body, and the connecting shaft and the first movable shell are rotatably connected, a first toothed belt pulley is rotatably connected to the second movable shell, a second toothed belt pulley is fixedly provided on an external fixed sleeve of the connecting shaft, a third toothed belt pulley is fixedly connected to an end of the rotating shaft away from the stepper motor body, and the synchronous toothed belt is respectively sleeved on the outside of the first toothed belt pulley, the second toothed belt pulley and the third toothed belt pulley, the adjustment disk is installed with a moving mechanism for driving the first movable shell to move, and the adjustment disk is installed with a tension adjustment mechanism for adjusting the force with which the first toothed belt pulley presses the synchronous toothed belt.

[0009] Preferably, the moving mechanism includes a first guide block fixedly mounted on the first movable shell, a first guide groove matched with the first guide block is opened on the adjusting disk, the first guide block is located in the first guide groove, a first screw rod passes through the first guide block, the first screw rod and the first guide block are connected by a threaded connection, and the first screw rod and the adjusting disk are rotatably connected, and the first screw rod is fixedly mounted with a first support disk.

[0010] Preferably, the tension adjustment mechanism includes a second guide block fixedly mounted on the second movable shell, a second guide groove matched with the second guide block is opened on the adjusting disk, the second guide block is located in the second guide groove, a second screw rod passes through the second guide block, the second screw rod and the adjusting disk are rotatably connected, and a third guide block is sleeved on the outside of the second screw rod, the third guide block is located in the second guide groove, the second screw rod and the third guide block are connected in a threaded manner, a first compression spring is sleeved on the outside of the second screw rod, and two ends of the first compression spring are respectively fixedly connected to the second guide block and the third guide block, and the second screw rod is fixedly mounted with a second support disk.

[0011] Preferably, the first support plate and the second support plate are both provided with inner hexagonal grooves, and the inner wall of the adjustment shell is provided with first avoidance holes matched with the inner hexagonal grooves.

[0012] Preferably, the adjustment disk is rotatably connected to a guide wheel, the guide wheel is provided with an annular groove matched with the synchronous toothed belt, and the synchronous toothed belt is in contact with the inner wall of the annular groove.

[0013] Preferably, the positioning mechanism includes a pressing ring arranged in the adjusting shell, the adjusting shell is equipped with a locking piece adapted to the pressing ring, two pressing frames are arranged in the adjusting shell, pressing grooves adapted to the first support plate and the second support plate are opened on the two pressing frames, the first support plate and the second support plate are respectively in contact with the corresponding pressing grooves, the pressing frame is fixedly installed with two guide strips, the external sliding sleeve of the guide strip is provided with a support block, and the support block and the adjusting plate are fixedly connected.

[0014] Preferably, the locking member includes two movable plates fixedly mounted on the pressing ring, two second avoidance holes are opened on the inner wall of the adjusting shell, and the movable plate passes through the corresponding second avoidance holes, and a third screw rod located outside the adjusting shell passes through the movable plate, and both ends of the third screw rod are fixedly connected to the adjusting shell through connecting blocks respectively, and two nuts are provided on the outside of the third screw rod, and two adjacent nuts are respectively in contact with two sides of the movable plate.

[0015] Preferably, the connector comprises an insert block fixedly mounted on the output end of the stepper motor body, a slot is provided at one end of the rotating shaft facing the stepper motor body, and the insert block is located in the slot.

[0016] Preferably, the disassembly and assembly unit includes two positioning blocks fixedly mounted on the stepper motor body, the positioning blocks are penetrated by a positioning column located in the adjustment shell, the external fixing sleeve of the positioning column is provided with a fixing ring, the fixing ring is in contact with the positioning block, and the end of the positioning column away from the positioning block is fixedly connected to a movable disk located outside the adjustment shell, the external sleeve of the positioning column is provided with a second compression spring, and the two ends of the second compression spring are respectively abutted against the fixing ring and the inner wall of the adjustment shell.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The staff drives the adjustment disk to rotate and changes the position of the connecting shaft in the adjustment shell. After the position of the adjustment disk is adjusted, the position of the adjustment disk is positioned by the positioning mechanism, and the connecting shaft is driven to move relative to the adjustment disk by the belt transmission adjustment structure. The position of the connecting shaft is further adjusted to make the connecting shaft and the external transmission shaft coaxial. The staff fixes the connecting shaft and the external transmission shaft together through an external coupling, and drives the rotating shaft to rotate through the stepper motor body. The rotating shaft drives the connecting shaft and the external transmission shaft to rotate synchronously through the belt transmission adjustment structure, which is convenient for adjusting the position of the connecting shaft and ensuring that the connecting shaft and the external transmission shaft are coaxial, thereby avoiding vibration caused by non-coaxiality, thereby protecting the stepper motor body and the external production equipment to be driven. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] In the attached picture:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 A schematic diagram of the structure of the interior of the shell is adjusted according to the present invention;

[0023] Figure 3It is a structural schematic diagram of the adjustment disk of the present invention;

[0024] Figure 4 It is a schematic structural diagram of the first guide groove and the second guide groove of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the split plug-in block and the slot of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the pressing frame of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the guide wheel of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the disassembly and assembly unit of the present invention.

[0029] In the figure: 1, stepper motor body; 2, adjustment shell; 3, adjustment plate; 4, rotating shaft; 5, first movable shell; 6, connecting shaft; 7, support frame; 8, second movable shell; 9, first toothed belt wheel; 10, second toothed belt wheel; 11, third toothed belt wheel; 12, synchronous toothed belt; 13, first guide block; 14, first guide groove; 15, first screw rod; 16, first support plate; 17, second guide block; 18, second guide groove; 19, second screw rod; 20, third guide block; 21, The first compression spring; 22, the second support plate; 23, the first avoidance hole; 24, the hexagonal groove; 25, the pressing ring; 26, the pressing frame; 27, the pressing groove; 28, the guide strip; 29, the support block; 30, the movable plate; 31, the second avoidance hole; 32, the third screw rod; 33, the connecting block; 34, the nut; 35, the guide wheel; 36, the annular groove; 37, the insert block; 38, the slot; 39, the positioning block; 40, the positioning column; 41, the fixing ring; 42, the movable plate; 43, the second compression spring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Embodiment 1, by Figure 1 , Figure 2 and Figure 3The present invention comprises a stepper motor body 1 and an adjustment shell 2, the adjustment shell 2 is equipped with a disassembly unit adapted to the stepper motor body 1, the adjustment shell 2 is a cavity structure with one end open, an adjustment disk 3 is arranged in the adjustment shell 2, a rotating shaft 4 rotatably connected passes through the adjustment disk 3, a support frame 7 is arranged on the outer rotating sleeve of the rotating shaft 4, and the support frame 7 is fixedly connected to the inner wall of the adjustment shell 2;

[0032] The output end of the stepper motor body 1 is connected to the rotating shaft 4 through a plug-in connector. A connecting shaft 6 is provided on the side of the adjustment disk 3 away from the stepper motor body 1. The adjustment disk 3 is equipped with a belt transmission adjustment structure respectively matched with the rotating shaft 4 and the connecting shaft 6. The adjustment shell 2 is equipped with a positioning mechanism matched with the adjustment disk 3. The staff drives the adjustment disk 3 to rotate and changes the position of the connecting shaft 6 in the adjustment shell 2. After the position of the adjustment disk 3 is adjusted, the position of the adjustment disk 3 is positioned by the positioning mechanism, and the connecting shaft 6 is driven to move relative to the adjustment disk 3 by the belt transmission adjustment structure. Further adjust the position of the connecting shaft 6 so that the connecting shaft 6 and the external transmission shaft are in a coaxial state. The staff fixes the connecting shaft 6 and the external transmission shaft together through an external coupling, and drives the rotating shaft 4 to rotate through the stepper motor body 1. The rotating shaft 4 drives the connecting shaft 6 and the external transmission shaft to rotate synchronously through the belt transmission adjustment structure, which is convenient for adjusting the position of the connecting shaft 6 and ensuring that the connecting shaft 6 and the external transmission shaft are in a coaxial state, thereby avoiding vibration caused by non-coaxiality, thereby protecting the stepper motor body 1 and the external production equipment to be driven.

[0033] Embodiment 2, based on embodiment 1, Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7The belt transmission adjustment structure includes a first movable shell 5, a second movable shell 8 and a synchronous toothed belt 12 arranged on the side of the adjustment disk 3 away from the stepper motor body 1, and the connecting shaft 6 is rotatably connected to the first movable shell 5, the second movable shell 8 is rotatably connected to the first toothed belt wheel 9, the external fixed sleeve of the connecting shaft 6 is provided with a second toothed belt wheel 10, the end of the rotating shaft 4 away from the stepper motor body 1 is fixedly connected to the third toothed belt wheel 11, and the synchronous toothed belt 12 is respectively sleeved on the outside of the first toothed belt wheel 9, the second toothed belt wheel 10 and the third toothed belt wheel 11, and the adjustment disk 3 is installed with a useful The movable mechanism for driving the first movable shell 5 to move, the adjusting disk 3 is equipped with a tension adjustment mechanism for adjusting the force of the first toothed belt wheel 9 pressing the synchronous toothed belt 12, the movable mechanism includes a first guide block 13 fixedly mounted on the first movable shell 5, the adjusting disk 3 is provided with a first guide groove 14 adapted to the first guide block 13, the first guide block 13 is located in the first guide groove 14, the first guide block 13 is penetrated by a first screw rod 15, the first screw rod 15 and the first guide block 13 are connected in a threaded manner, and the first screw rod 15 and the adjusting disk 3 are rotatably connected, and the first screw rod 1 The first support plate 16 is fixedly mounted, the tension adjustment mechanism includes a second guide block 17 fixedly mounted on the second movable shell 8, a second guide groove 18 adapted to the second guide block 17 is opened on the adjustment plate 3, the second guide block 17 is located in the second guide groove 18, a second screw rod 19 runs through the second guide block 17, the second screw rod 19 is rotatably connected to the adjustment plate 3, and a third guide block 20 is sleeved on the outer side of the second screw rod 19, the third guide block 20 is located in the second guide groove 18, the second screw rod 19 and the third guide block 20 are connected in a threaded manner, and the second screw rod The outer sleeve of 19 is provided with a first compression spring 21, and the two ends of the first compression spring 21 are fixedly connected to the second guide block 17 and the third guide block 20 respectively, the second screw rod 19 is fixedly installed with a second support plate 22, the first support plate 16 and the second support plate 22 are provided with an inner hexagonal groove 24, the inner wall of the adjustment shell 2 is provided with a first avoidance hole 23 adapted to the inner hexagonal groove 24, the adjustment plate 3 is rotatably connected with a guide wheel 35, the guide wheel 35 is provided with an annular groove 36 adapted to the synchronous toothed belt 12, and the synchronous toothed belt 12 is in contact with the inner wall of the annular groove 36;

[0034] The staff operates an external Allen wrench, and the end of the Allen wrench is inserted into the adjustment shell 2 through the first avoidance hole 23, and the end of the Allen wrench is inserted into the Allen slot 24 located in the first support disk 16. The first support disk 16 and the first screw rod 15 are rotated by rotating the Allen wrench, and the first screw rod 15 drives the first guide block 13 and the first movable shell 5 to move synchronously, so that the connecting shaft 6 and the second toothed belt pulley 10 move relative to the adjustment disk 3. When the position of the connecting shaft 6 is adjusted, the staff drives the adjustment disk 3 to move so that the second support disk 22 is located directly below the second avoidance hole 31. The staff again inserts the end of the Allen wrench into the Allen slot 24 located on the second support disk 22, and drives the second screw rod 19 to rotate by rotating the Allen wrench. The second screw rod 19 drives the third guide block 20 to move in the second guide slot 18, and the third guide block 20 passes through The second guide block 17, the second movable shell 8 and the first toothed belt pulley 9 are pushed to move by the first compression spring 21. When the synchronous toothed belt 12 is in a taut state, the second guide block 17 and the second movable shell 8 stop moving. As the third guide block 20 continues to move, the distance between the third guide block 20 and the second guide block 17 becomes smaller, and the deformation degree of the first compression spring 21 is adjusted, thereby adjusting the tension of the synchronous toothed belt 12. When the rotating shaft 4 rotates, the rotating shaft 4 drives the third toothed belt pulley 11 to rotate. The third toothed belt pulley 11 drives the first toothed belt pulley 9 and the second toothed belt pulley 10 to rotate synchronously through the synchronous toothed belt 12. The second toothed belt pulley 10 drives the connecting shaft 6 to rotate, and the synchronous toothed belt 12 contacts the inner wall of the annular groove 36. Through the design of the guide wheel 35, the synchronous toothed belt 12 can rotate smoothly relative to the adjusting disk 3, reducing the possibility of tilting and shaking of the synchronous toothed belt 12.

[0035] Embodiment 3, based on embodiment 2, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8It is given that the positioning mechanism includes a pressing ring 25 arranged in the adjusting shell 2, and the adjusting shell 2 is equipped with a locking piece adapted to the pressing ring 25. Two pressing frames 26 are arranged in the adjusting shell 2, and pressing grooves 27 adapted to the first support plate 16 and the second support plate 22 are respectively provided on the two pressing frames 26. The first support plate 16 and the second support plate 22 are respectively in contact with the corresponding pressing grooves 27. The pressing frame 26 is fixedly installed with two guide bars 28, and the outer sliding sleeve of the guide bar 28 is provided with a support block 29, and the support block 29 is fixedly connected to the adjusting disk 3. The locking piece includes two movable plates 30 fixedly installed on the pressing ring 25, and two second avoidance holes 31 are provided on the inner wall of the adjusting shell 2, and the movable plate 30 passes through the corresponding second avoidance holes 31. A third screw rod 32 located outside the adjusting shell 2 is passed through the movable plate 30, and the two ends of the third screw rod 32 are respectively connected by The block 33 is fixedly connected to the adjustment shell 2, the outer sleeve of the third screw rod 32 is provided with two nuts 34, and the two adjacent nuts 34 are respectively in contact with the two sides of the movable plate 30, the plug-in connector includes a plug-in block 37 fixedly installed on the output end of the stepper motor body 1, the end of the rotating shaft 4 facing the stepper motor body 1 is provided with a slot 38, and the plug-in block 37 is located in the slot 38, the disassembly unit includes two positioning blocks 39 fixedly installed on the stepper motor body 1, the positioning block 39 is penetrated by a positioning column 40 located in the adjustment shell 2, the outer fixed sleeve of the positioning column 40 is provided with a fixing ring 41, the fixing ring 41 is in contact with the positioning block 39, and the end of the positioning column 40 away from the positioning block 39 is fixedly connected with a movable disk 42 located outside the adjustment shell 2, the outer sleeve of the positioning column 40 is provided with a second compression spring 43, and the two ends of the second compression spring 43 are respectively in contact with the fixing ring 41 and the inner wall of the adjustment shell 2;

[0036] When the adjusting disk 3 rotates, the adjusting disk 3 drives the pressing frame 26 to rotate synchronously through the supporting block 29 and the guide strip 28, and the pressing frame 26 slides relative to the pressing ring 25. When the position of the adjusting disk 3 needs to be positioned, the staff drives the movable plate 30 and the pressing ring 25 to move, and the pressing ring 25 is in close contact with the pressing frame 26, so that the two pressing grooves 27 are respectively in close contact with the first supporting disk 16 and the second supporting disk 22, so that the second supporting disk 22 and the first supporting disk 16 are fixed relative to the adjusting disk 3, and the adjusting disk 3 is fixed relative to the adjusting shell 2, and the staff drives the two adjacent nuts 34 to rotate, and the nuts 34 move relative to the third screw rod 32, and finally the two adjacent nuts 34 clamp the movable plate 30, so that the movable plate 3 0 and the pressing ring 25 are fixed relative to the adjusting shell 2. When the stepper motor body 1 needs to be removed from the adjusting shell 2, the staff drives the movable disk 42 and the positioning column 40 to move, and the positioning column 40 drives the fixed ring 41 to move, so that the second compression spring 43 is in a compressed state, and the positioning column 40 slides relative to the positioning block 39. When the positioning column 40 is separated from the positioning block 39, the limitation on the position of the positioning block 39 and the stepper motor body 1 is released, and the staff drives the stepper motor body 1 to move relative to the adjusting shell 2, so that the positioning block 39 is pulled out of the adjusting shell 2, and the stepper motor body 1 drives the plug block 37 to disengage from the slot 38, so that the stepper motor body 1 can be removed, which is convenient for replacing and repairing the stepper motor body 1.

[0037] Working principle: the staff drives the adjustment disk 3 to rotate and changes the position of the connecting shaft 6 in the adjustment shell 2. After the position of the adjustment disk 3 is adjusted, the position of the adjustment disk 3 is positioned by the positioning mechanism, and the connecting shaft 6 is driven to move relative to the adjustment disk 3 by the belt transmission adjustment structure, and the position of the connecting shaft 6 is further adjusted to make the connecting shaft 6 and the external transmission shaft in a coaxial state. The staff fixes the connecting shaft 6 and the external transmission shaft together through an external coupling, and drives the rotating shaft 4 to rotate through the stepper motor body 1. The rotating shaft 4 drives the connecting shaft 6 and the external transmission shaft to rotate synchronously through the belt transmission adjustment structure, which is convenient for adjusting the position of the connecting shaft 6, ensuring that the connecting shaft 6 and the external transmission shaft are in a coaxial state, thereby avoiding vibration caused by non-coaxiality, thereby protecting the stepper motor body 1 and the external production equipment to be driven;

[0038] The staff operates an external Allen wrench, and the end of the Allen wrench is inserted into the adjustment shell 2 through the first avoidance hole 23, and the end of the Allen wrench is inserted into the Allen slot 24 located in the first support disk 16. The first support disk 16 and the first screw rod 15 are rotated by rotating the Allen wrench, and the first screw rod 15 drives the first guide block 13 and the first movable shell 5 to move synchronously, so that the connecting shaft 6 and the second toothed belt pulley 10 move relative to the adjustment disk 3. When the position of the connecting shaft 6 is adjusted, the staff drives the adjustment disk 3 to move so that the second support disk 22 is located directly below the second avoidance hole 31. The staff again inserts the end of the Allen wrench into the Allen slot 24 located on the second support disk 22, and drives the second screw rod 19 to rotate by rotating the Allen wrench. The second screw rod 19 drives the third guide block 20 to move in the second guide slot 18, and the third guide block 20 passes through The second guide block 17, the second movable shell 8 and the first toothed belt wheel 9 are pushed to move by the first compression spring 21. When the synchronous toothed belt 12 is in a taut state, the second guide block 17 and the second movable shell 8 stop moving. As the third guide block 20 continues to move, the distance between the third guide block 20 and the second guide block 17 becomes smaller, and the deformation degree of the first compression spring 21 is adjusted, thereby adjusting the tension of the synchronous toothed belt 12. When the rotating shaft 4 rotates, the rotating shaft 4 drives the third toothed belt wheel 11 to rotate. The third toothed belt wheel 11 drives the first toothed belt wheel 9 and the second toothed belt wheel 10 to rotate synchronously through the synchronous toothed belt 12. The second toothed belt wheel 10 drives the connecting shaft 6 to rotate, and the synchronous toothed belt 12 contacts the inner wall of the annular groove 36. Through the design of the guide wheel 35, the synchronous toothed belt 12 can rotate smoothly relative to the adjusting disk 3, reducing the possibility of tilting and shaking of the synchronous toothed belt 12.

[0039] When the adjusting disk 3 rotates, the adjusting disk 3 drives the pressing frame 26 to rotate synchronously through the supporting block 29 and the guide strip 28, and the pressing frame 26 slides relative to the pressing ring 25. When the position of the adjusting disk 3 needs to be positioned, the staff drives the movable plate 30 and the pressing ring 25 to move, and the pressing ring 25 is in close contact with the pressing frame 26, so that the two pressing grooves 27 are respectively in close contact with the first supporting disk 16 and the second supporting disk 22, so that the second supporting disk 22 and the first supporting disk 16 are fixed relative to the adjusting disk 3, and the adjusting disk 3 is fixed relative to the adjusting shell 2, and the staff drives the two adjacent nuts 34 to rotate, and the nuts 34 move relative to the third screw rod 32, and finally the two adjacent nuts 34 clamp the movable plate 30, so that the movable plate 3 0 and the pressing ring 25 are fixed relative to the adjusting shell 2. When the stepper motor body 1 needs to be removed from the adjusting shell 2, the staff drives the movable disk 42 and the positioning column 40 to move, and the positioning column 40 drives the fixed ring 41 to move, so that the second compression spring 43 is in a compressed state, and the positioning column 40 slides relative to the positioning block 39. When the positioning column 40 is separated from the positioning block 39, the limitation on the position of the positioning block 39 and the stepper motor body 1 is released, and the staff drives the stepper motor body 1 to move relative to the adjusting shell 2, so that the positioning block 39 is pulled out of the adjusting shell 2, and the stepper motor body 1 drives the plug block 37 to disengage from the slot 38, so that the stepper motor body 1 can be removed, which is convenient for replacing and repairing the stepper motor body 1.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-vibration, high-torque stepper motor, comprising a stepper motor body (1) and an adjustment housing (2), characterized in that: The adjustment shell (2) is provided with a disassembly and assembly unit adapted to the stepper motor body (1); the adjustment shell (2) is a hollow structure with one end open; an adjustment disk (3) is provided inside the adjustment shell (2); a rotating shaft (4) rotatably connected to the adjustment disk (3) passes through the adjustment disk (3); a support frame (7) is provided on the outer rotating sleeve of the rotating shaft (4); and the support frame (7) is fixedly connected to the inner wall of the adjustment shell (2); The output end of the stepper motor body (1) and the rotating shaft (4) are connected via a plug-in connector; a connecting shaft (6) is provided on a side of the adjustment disk (3) away from the stepper motor body (1); the adjustment disk (3) is provided with a belt transmission adjustment structure respectively matched with the rotating shaft (4) and the connecting shaft (6); and the adjustment housing (2) is provided with a positioning mechanism matched with the adjustment disk (3); The belt transmission adjustment structure comprises a first movable shell (5), a second movable shell (8) and a synchronous toothed belt (12) which are arranged on a side of the adjustment disk (3) away from the stepper motor body (1), and the connecting shaft (6) and the first movable shell (5) are rotatably connected, a first toothed belt wheel (9) is rotatably connected to the second movable shell (8), a second toothed belt wheel (10) is fixedly sleeved on the outside of the connecting shaft (6), a third toothed belt wheel (11) is fixedly connected to one end of the rotating shaft (4) away from the stepper motor body (1), and the synchronous toothed belt (12) is respectively sleeved on the outside of the first toothed belt wheel (9), the second toothed belt wheel (10) and the third toothed belt wheel (11), the adjustment disk (3) is provided with a moving mechanism for driving the first movable shell (5) to move, and the adjustment disk (3) is provided with a tension adjustment mechanism for adjusting the force with which the first toothed belt wheel (9) presses the synchronous toothed belt (12); The moving mechanism comprises a first guide block (13) fixedly mounted on the first movable shell (5); a first guide groove (14) adapted to the first guide block (13) is formed on the adjusting disk (3); the first guide block (13) is located in the first guide groove (14); a first screw rod (15) penetrates the first guide block (13); the first screw rod (15) and the first guide block (13) are connected in a threaded manner; the first screw rod (15) and the adjusting disk (3) are rotatably connected; and a first support disk (16) is fixedly mounted on the first screw rod (15); The tension adjustment mechanism comprises a second guide block (17) fixedly mounted on the second movable shell (8); a second guide groove (18) matched with the second guide block (17) is formed on the adjustment disk (3); the second guide block (17) is located in the second guide groove (18); a second screw rod (19) passes through the second guide block (17); the second screw rod (19) and the adjustment disk (3) are rotatably connected; a third guide block (20) is sleeved on the outside of the second screw rod (19); the third guide block (20) is located in the second guide groove (18); the second screw rod (19) and the third guide block (20) are connected in a threaded manner; a first compression spring (21) is sleeved on the outside of the second screw rod (19); two ends of the first compression spring (21) are respectively fixedly connected to the second guide block (17) and the third guide block (20); and a second support disk (22) is fixedly mounted on the second screw rod (19); The positioning mechanism comprises a pressing ring (25) arranged in the adjustment shell (2); the adjustment shell (2) is provided with a locking member matched with the pressing ring (25); two pressing frames (26) are arranged in the adjustment shell (2); pressing grooves (27) respectively matched with the first support plate (16) and the second support plate (22) are opened on the two pressing frames (26); the first support plate (16) and the second support plate (22) are respectively in contact with the corresponding pressing grooves (27); the pressing frame (26) is fixedly provided with two guide bars (28); the outer sliding sleeve of the guide bar (28) is provided with a support block (29); and the support block (29) and the adjustment plate (3) are fixedly connected.

2. A low-vibration high-torque stepper motor according to claim 1, characterized in that: The first support plate (16) and the second support plate (22) are both provided with an inner hexagonal groove (24), and the inner wall of the adjustment shell (2) is provided with a first avoidance hole (23) that matches the inner hexagonal groove (24).

3. A low-vibration high-torque stepper motor according to claim 2, characterized in that: The adjustment disk (3) is rotatably connected to a guide wheel (35), the guide wheel (35) is provided with an annular groove (36) adapted to the synchronous toothed belt (12), and the synchronous toothed belt (12) is in contact with the inner wall of the annular groove (36).

4. A low-vibration high-torque stepper motor according to claim 3, characterized in that: The locking member comprises two movable plates (30) fixedly mounted on the pressing ring (25); two second avoidance holes (31) are provided on the inner wall of the adjustment shell (2); and the movable plate (30) passes through the corresponding second avoidance holes (31); a third screw rod (32) located outside the adjustment shell (2) passes through the movable plate (30); two ends of the third screw rod (32) are respectively fixedly connected to the adjustment shell (2) via connecting blocks (33); two nuts (34) are sleeved on the outside of the third screw rod (32), and two adjacent nuts (34) are respectively in contact with two sides of the movable plate (30).

5. A low-vibration high-torque stepper motor according to claim 1, characterized in that: The plug-in connector comprises an insert block (37) fixedly mounted on the output end of the stepper motor body (1); a slot (38) is provided at one end of the rotating shaft (4) facing the stepper motor body (1), and the insert block (37) is located in the slot (38).

6. A low-vibration high-torque stepper motor according to claim 1, characterized in that: The disassembly and assembly unit comprises two positioning blocks (39) fixedly mounted on the stepper motor body (1); a positioning column (40) located in the adjustment shell (2) passes through the positioning block (39); a fixing ring (41) is provided on the outer fixing sleeve of the positioning column (40); the fixing ring (41) and the positioning block (39) are in contact with each other; and one end of the positioning column (40) away from the positioning block (39) is fixedly connected to a movable disk (42) located outside the adjustment shell (2); a second compression spring (43) is provided on the outer sleeve of the positioning column (40); and two ends of the second compression spring (43) are respectively in contact with the fixing ring (41) and the inner wall of the adjustment shell (2).

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