CN113517783B - Steady stepper motor subassembly of tensioning - Google Patents
Steady stepper motor subassembly of tensioning Download PDFInfo
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- CN113517783B CN113517783B CN202111066612.7A CN202111066612A CN113517783B CN 113517783 B CN113517783 B CN 113517783B CN 202111066612 A CN202111066612 A CN 202111066612A CN 113517783 B CN113517783 B CN 113517783B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/24—Structural association with auxiliary mechanical devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/04—Balancing means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/26—Means for adjusting casings relative to their supports
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a stably tensioned stepping motor assembly, which comprises a centering device for a stepping motor and a multi-driving-rod synchronizing device; the multi-driving-rod synchronizing device is arranged on the working platform of the centering device for the stepping motor and is suitable for being driven by the stepping motor of the centering device for the stepping motor; the multi-drive rod synchronizing device comprises a first auxiliary drive rod, a second auxiliary drive rod and an adjusting component; the bottoms of the first auxiliary driving rod and the second auxiliary driving rod are fixedly provided with synchronous gears; the two synchronous gears are connected with a main driving tooth of a driving rod of the centering device for the stepping motor through an adjustable chain. The tension of the adjustable chain is adjusted through the adjusting assembly, the tension of the adjustable chain is guaranteed to be always within a preset range, sliding teeth of the synchronizing gear and the main driving gear are prevented, and the synchronizing performance of the multi-driving rod based on the control of the stepping motor is improved.
Description
Technical Field
The invention relates to the field of control of stepping motors, in particular to a stepping motor assembly stable in tensioning.
Background
A stepping motor is a motor that converts an electric pulse signal into a corresponding angular displacement or linear displacement, and is widely used in various fields as one of common driving control devices.
In the prior art, the multi-rod synchronous driving mechanism based on the stepping motor has poor synchronization performance, and a synchronous chain can become loose after being used for a long time to cause sliding teeth, so that the multi-rod synchronous driving mechanism cannot be driven synchronously.
The above problems are currently in need of solution.
Disclosure of Invention
The invention aims to provide a stepping motor assembly with stable tensioning.
In order to solve the technical problem, the invention provides a stepping motor assembly with stable tensioning, which comprises a centering device for a stepping motor and a multi-driving-rod synchronizing device;
the multi-driving-rod synchronizing device is arranged on the working platform of the centering device for the stepping motor and is suitable for being driven by the stepping motor of the centering device for the stepping motor;
the multi-drive rod synchronizing device comprises a first auxiliary drive rod, a second auxiliary drive rod and an adjusting component;
the bottoms of the first auxiliary driving rod and the second auxiliary driving rod are fixedly provided with synchronous gears;
the two synchronous gears are connected with main driving teeth of a driving rod of the centering device for the stepping motor through an adjustable chain;
the main driving gear and the two synchronous gears have the same tooth number;
the adjusting components are arranged on two sides of the adjustable chain and are suitable for adjusting the tension of the adjustable chain.
Further, the adjusting assembly comprises a first adjusting gear and a second adjusting gear;
the first adjusting gear and the second adjusting gear are respectively arranged at the outer sides of the chains of the two synchronous gears connected with the main driving gear;
the first adjusting gear and the second adjusting gear are arranged on the working platform in a sliding mode respectively and are suitable for being fixed after the tension of the adjustable chain is adjusted.
Further, the adjusting assembly further comprises a first sliding block and a second sliding block;
the first adjusting gear and the second adjusting gear are respectively and rotatably connected to the first sliding block and the second sliding block;
the first sliding block and the second sliding block are connected to the working platform in a sliding mode.
Furthermore, the adjusting component also comprises a fixed block and an adjusting shaft;
the adjusting shaft penetrates through the fixed block;
the adjusting shaft is provided with a positive thread and a negative thread respectively;
the first sliding block and the second sliding block are in threaded connection with the positive threads and the negative threads on the adjusting shaft respectively and are suitable for adjusting the first sliding block and the second sliding block to be close to or far away from when the adjusting shaft rotates.
Furthermore, a plurality of limiting grooves are formed in one side, far away from the first sliding block and the second sliding block, of the fixing block;
the tail end of the adjusting shaft is hinged with a handle;
the handle is suitable for being pressed into one of the limiting grooves when external force is applied.
Furthermore, the adjusting shaft and the fixing block are arranged on the side wall of the working platform.
Further, the first auxiliary driving rod and the second auxiliary driving rod both comprise universal couplings.
Further, the centering device for a stepping motor includes:
the device comprises a working platform, a stepping motor, a driving rod, a lifting assembly and a centering assembly;
the driving rod penetrates through the working platform;
the stepping motor is fixedly arranged below the working platform and is suitable for driving the driving rod to rotate;
the driving rod penetrates through the centering assembly;
the centering assembly is arranged on the lifting assembly and is suitable for centering the driving rod when the lifting assembly is lifted.
Further, the centering assembly comprises a rotating sleeve ring, a centering chain, a sliding plate, a lifting plate and three centering gears;
a centering circular groove is formed in the center of the lifting plate;
the sliding plate is embedded in the lifting plate, and the centering area of the sliding plate leaks out of the centering circular groove;
a rotating opening suitable for the rotating lantern ring to be connected in a rotating mode is formed in the center of the sliding plate;
the driving rod penetrates through the rotating lantern ring and then extends out;
the three centering gears are arranged around the rotating lantern ring in an equilateral triangle and are fixed on the sliding plate through corresponding fixing columns;
the three centering gears synchronously rotate through a centering chain;
one chain link of the centering chain is connected with the outer wall of the rotating sleeve ring and is suitable for driving the centering chain to rotate when the rotating sleeve ring rotates;
each centering gear extends out of a supporting block towards the inner wall of the centering circular groove, and the supporting blocks are suitable for supporting against the inner wall of the centering circular groove when the centering chain rotates so as to complete centering of the driving rod inserted into the rotating sleeve ring.
Furthermore, the centering chain is fixedly connected with the rotating sleeve ring through a telescopic block, and the joint of the telescopic block and the centering chain is rotatably connected.
The invention has the beneficial effects that the invention provides a stepping motor assembly with stable tensioning, which comprises a centering device for a stepping motor and a multi-driving-rod synchronizing device; the multi-driving-rod synchronizing device is arranged on the working platform of the centering device for the stepping motor and is suitable for being driven by the stepping motor of the centering device for the stepping motor; the multi-drive rod synchronizing device comprises a first auxiliary drive rod, a second auxiliary drive rod and an adjusting component; the bottoms of the first auxiliary driving rod and the second auxiliary driving rod are fixedly provided with synchronous gears; the two synchronous gears are connected with main driving teeth of a driving rod of the centering device for the stepping motor through an adjustable chain; the main driving gear and the two synchronous gears have the same tooth number; the adjusting components are arranged on two sides of the adjustable chain and are suitable for adjusting the tension of the adjustable chain. The tension of the adjustable chain is adjusted through the adjusting assembly, the tension of the adjustable chain is guaranteed to be always within a preset range, sliding teeth of the synchronizing gear and the main driving gear are prevented, and the synchronizing performance of the multi-driving rod based on the control of the stepping motor is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is an isometric view of a centering device for a stepper motor provided by the present invention.
Fig. 2 is a cross-sectional view of a centering device for a stepping motor provided in the present invention.
Fig. 3 is an enlarged view at a in fig. 2.
FIG. 4 is a state diagram of the centering assembly centering process provided by the present invention.
Fig. 5 is a state diagram after centering of the centering assembly provided by the present invention is completed.
Fig. 6 is a front view of a centering device for a stepper motor provided in accordance with the present invention.
Fig. 7 is an enlarged view at B in fig. 3.
Fig. 8 is a schematic structural view of a centering gear provided by the present invention.
Fig. 9 is an enlarged view at C in fig. 1.
Fig. 10 is an enlarged view at D in fig. 9.
Fig. 11 is a schematic structural diagram of a multi-drive rod synchronizer provided by the present invention.
In the figure: 110. a working platform; 120. a stepping motor; 130. a drive rod; 131. a sleeve; 1311. a stroke slot; 1311a, first stroke; 1311b, second stroke; 132. a rotating shaft; 140. a centering assembly; 141. rotating the lantern ring; 142. a centering chain; 1421. a telescopic block; 143. a sliding plate; 144. a lifting plate; 145. a centering gear; 1451. a holding block; 1452. a roll axis; 1453. a fixed part; 1453a, a holding plate; 1454. a bending section; 150. a lifting assembly; 151. a screw rod; 152. lifting teeth; 153. a synchronization chain; 210. a first secondary drive link; 220. a second sub-drive lever; 221. a synchronizing gear; 222. a main drive tooth; 230. an adjustment assembly; 231. a first adjusting gear; 232. a second adjusting gear; 233. a first slider; 234. a second slider; 235. a fixed block; 236. an adjustment shaft; 237. a limiting groove; 238. a handle; 240. an adjustable chain.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example 1
The embodiment 1 provides a stably tensioned stepping motor assembly, which comprises a centering device for a stepping motor and a multi-driving-rod synchronizing device; the multi-driving-rod synchronizing device is arranged on a working platform of the centering device for the stepping motor and is suitable for being driven by the stepping motor of the centering device for the stepping motor.
As shown in fig. 1, in the present embodiment, the centering device for the stepping motor 120 includes: a working platform 110, a stepping motor 120, a driving rod 130, a lifting assembly 150 and a centering assembly 140; the drive rod 130 passes through the work platform; the stepping motor 120 is fixedly disposed below the working platform 110 and adapted to drive the driving rod 130 to rotate; the driving rod 130 passes through the centering assembly 140; the centering assembly 140 is arranged on the lifting assembly 150 and is suitable for centering the driving rod 130 when the lifting assembly 150 rises, and the liftable centering assembly 140 is arranged to finish centering the driving rod 130 in the lifting process, so that the problem that the top of the longer driving rod 130 cannot be centered through a bearing in a specific environment is solved, and the eccentricity of the driving rod 130 when a grinding wheel is driven by the driving rod 130 to polish or polish a plurality of stacked articles is avoided.
Referring to fig. 2 and 3, in the present embodiment, the centering assembly 140 includes a rotating collar 141, a centering chain 142, a sliding plate 143, a lifting plate 144 and three centering gears 145; a centering circular groove is formed in the center of the lifting plate 144; the sliding plate 143 is embedded in the lifting plate 144, and the centering area of the sliding plate 143 leaks out of the centering circular groove; a rotating port suitable for the rotating collar 141 to be rotatably connected is formed in the center of the sliding plate 143; the driving rod 130 extends out after passing through the rotating collar 141; the three centering gears 145 are arranged around the rotating collar 141 in an equilateral triangle and fixed on the sliding plate 143 through corresponding fixing posts; the three centering gears 145 rotate synchronously through the centering chain 142; one of the links of the centering chain 142 is connected to the outer wall of the rotating collar 141, and is adapted to drive the centering chain 142 to rotate when the rotating collar 141 rotates; each centering gear 145 extends to form a supporting block 1451 towards the inner wall of the circular centering groove, and the supporting block 1451 is adapted to support against the inner wall of the circular centering groove when the centering chain 142 rotates, so as to complete the centering of the driving rod 130 inserted into the rotating collar 141. The initial state of the centering assembly 140 is shown in fig. 3, in which the angle of deflection of the abutment block 1451 of each centering gear 145 is the same. The centering assembly 140 is in a centering state as shown in fig. 4, and when the rotating collar 141 rotates, the centering chain 142 is driven to move, and at this time, the centering gear 145 engaged with the centering chain 142 is simultaneously rotated by the same angle, and, when the driving lever 130 is eccentric, the supporting blocks 1451 of one or two centering gears 145 will contact with the centering circular groove first, at this time, the rotating collar 141 continues to rotate, the sliding plate generates displacement in the lifting plate 144 until 3 supporting blocks 1451 all support against the inner wall of the centering circular groove, at this time, centering is completed, as shown in fig. 5, a soft centering method is adopted, i.e., the driving lever 130 is not directly moved, but the carrier of the driving lever 130, i.e., the sliding plate, is moved, to perform centering of the sliding plate, thereby indirectly enabling the driving rod 130 to complete the centering, avoiding the hard contact between the driving rod 130 and the rotating collar 141 and reducing the abrasion of the driving rod 130.
Referring to fig. 3, the centering chain 142 is fixedly connected to the rotating collar 141 through a telescopic block, and a connection portion of the telescopic block 1421 and the centering chain 142 is rotatably connected.
In this embodiment, the driving rod 130 includes a sleeve 131 and a rotating shaft 132 disposed inside the sleeve 131; the rotation shaft 132 is adapted to be rotated by the stepping motor 120. The sleeve 131 is used for protection and avoiding accidental touch, and meanwhile, the sleeve 131 can reduce abrasion between the rotating shaft 132 and the rotating collar 141.
Referring to fig. 6, a stroke groove 1311 is formed in an outer wall of the sleeve 131, and a moving block (not shown) is fixedly disposed on an inner wall of the rotating collar 141 corresponding to the stroke groove 1311; the moving block is clamped in the stroke groove 1311 and is adapted to move in the stroke groove 1311 when the rotating collar 141 moves up and down along with the lifting plate 144; the stroke slot 1311 includes a first stroke 1311a and a second stroke 1311 b; the first stroke 1311a is provided at the lower end of the sleeve 131, and the second stroke 1311b is provided at the upper portion of the first stroke 1311 a; the first stroke 1311a is arranged around the sleeve 131, and when the moving block of the rotating collar 141 moves to the boundary between the first stroke 1311a and the second stroke 1311b, each of the abutting blocks 1451 abuts against the inner wall of the centering circular groove. In the present embodiment, the encircling angle of the first stroke 1311a is related to the angle of rotation required by the centering gear 145, that is, the angle of rotation required by the centering gear 145 is related to the length of movement of the centering chain 142, and the length of movement of the centering chain 142 is related to the angle of rotation of the rotating collar 141, so that the angle of encircling required by the first stroke 1311a is defined by the angle of rotation required by the centering gear 145, and the specific corresponding relationship needs to be set according to the dimensional relationship of each component, and this embodiment is not further described.
Referring to fig. 7 and 8, the abutting block 1451 and the abutting end of the centering circular groove are provided with a rolling shaft 1452; the rolling shaft 1452 is rotatably disposed on the supporting block 1451. The rolling connection mode is adopted, so that the abrasion of the abutting block 1451 and the centering circular groove is reduced, and the service life is prolonged.
In this embodiment, the supporting block 1451 includes a fixing portion 1453 and a bending portion 1454; the fixing portion 1453 is rotatably connected to the bent portion 1454, and an engaging structure is disposed at the connection position, and the bent portion 1454 is engaged with the fixing portion 1453 when rotated; the bending portion 1454 abuts against the circular centering groove, and the engaging force between the bending portion 1454 and the fixing portion 1453 is slightly larger than the abutting force between the bending portion 1454 and the circular centering groove. When the abutting force between the bending part 1454 and the centering circular groove is larger than a normal value, the resistance applied when the lifting assembly 150 is lifted is increased, the load of the motor of the lifting assembly 150 is increased, and when the load is detected to be increased, an alarm prompt can be sent to avoid the abnormal state of the centering assembly 140.
Referring to fig. 6-8, specifically, the stroke slot 1311 further includes a third stroke, which is disposed above the second stroke 1311b and around the sleeve 131; the fixing part 1453 extends to the centering circular groove to form a butting plate 1453 a; when the rotating collar 141 slides in the third stroke, the force of the bending portion 1454 abutting against the circular centering groove gradually increases, and when the force of the bending portion 1454 abutting against the circular centering groove is greater than the force of the bending portion 1454 engaging with the fixing portion 1453, the bending portion 1454 disengages from the fixing portion 1453, and the abutting plate 1453a of the fixing portion 1453 abuts against the circular centering groove. The rising height of the centering assembly 140 is limited by setting a third stroke, when the force of the bent part 1454 abutting against the centering circular groove is greater than the force of the bent part 1454 engaging with the fixing part 1453, the bent part 1454 is disengaged from the fixing part 1453, and at this time, the load of the driving motor of the lifting assembly 150 also shows an abnormal condition, and an alarm is given to stop driving the centering assembly 140, so as to prevent the centering assembly 140 from contacting with an external device connected to the upper part of the driving rod 130.
Referring to fig. 1, in the present embodiment, the lifting assembly 150 includes a driving motor and two lead screws 151; the two screw rods 151 are rotatably arranged on the working platform 110, and the driving rod 130 is arranged between the two screw rods 151; the centering assembly 140 is provided with an internal thread at a position corresponding to the screw rod 151, and is suitable for driving the centering assembly 140 to ascend and descend when the screw rod 151 rotates; the bottom end of the screw rod 151 is fixedly provided with a lifting tooth 152 which is rotationally connected with the working platform 110; the working platform 110 is also provided with a driving gear for driving the lifting gear 152; the driving gear and the two lifting teeth 152 are arranged in a triangular shape and are connected through a synchronous chain 153; the driving motor is used for driving the driving gear to rotate, so as to drive the screw rod 151 to rotate.
The present embodiment also provides a centering method for the stepping motor 120, including the centering device for the stepping motor 120 as described above; the method completes the centering of the driving rod 130 by driving the centering assembly 140 to ascend through the lifting assembly 150. Through setting up liftable centering subassembly 140, accomplish the centering to actuating lever 130 at the lift in-process, solved longer actuating lever 130 under specific environment, can't adopt the top to carry out the problem of centering through the bearing, avoided the eccentricity of actuating lever 130 when polishing or polish a plurality of range upon range of article through actuating lever 130 drive emery wheel.
With reference to fig. 1, the multi-driving rod synchronizing device includes a first sub-driving rod 210, a second sub-driving rod 220 and an adjusting assembly 230; the bottoms of the first auxiliary driving rod 210 and the second auxiliary driving rod 220 are both fixedly provided with a synchronizing gear 221; the two said synchronizing gears 221 are connected with the main driving tooth 222 of the driving rod of the centering device for the stepping motor through an adjustable chain 240; the main driving gear 222 and the two synchronous gears 221 have the same number of teeth; the adjusting assembly 230 is disposed at two sides of the adjustable chain 240 and is adapted to adjust the tension of the adjustable chain 240. The tension of the adjustable chain 240 is adjusted through the adjusting assembly 230, the tension of the adjustable chain 240 is guaranteed to be always within a preset range, sliding teeth of the synchronizing gear 221 and the main driving gear 222 are prevented, and the synchronizing performance of the multi-driving rod based on the control of the stepping motor is improved.
Wherein the adjusting assembly 230 comprises a first adjusting gear 231 and a second adjusting gear 232; the first adjusting gear 231 and the second adjusting gear 232 are respectively arranged at the outer sides of the chains where the two synchronizing gears 221 are connected with the main driving gear 222; the first adjusting gear 231 and the second adjusting gear 232 are respectively slidably disposed on the working platform 110, and are adapted to be fixed after the tension of the adjustable chain 240 is adjusted. Through simple regulation structure, can not produce phenomenons such as smooth tooth when guaranteeing the synchronous drive of many actuating levers, improved synchronous precision.
With continued reference to fig. 1 and 9, the adjusting assembly 230 further includes a first sliding block 233 and a second sliding block 234; the first adjustment gear 231 and the second adjustment gear 232 are rotatably connected to the first slider 233 and the second slider 234, respectively; the first slider 233 and the second slider 234 are slidably connected to the work platform. The tension of the adjustable chain 240 can be adjusted by adjusting the positions of the first sliding block 233 and the second sliding block 234 on the working platform, so that the operation is simple, and the use is convenient.
The adjusting assembly 230 further comprises a fixed block 235 and an adjusting shaft 236; the adjusting shaft 236 penetrates through the fixed block 235; the adjusting shaft 236 is provided with a positive thread and a negative thread respectively; the first slider 233 and the second slider 234 are respectively in threaded connection with the positive and negative threads of the adjusting shaft 236, and are adapted to adjust the first slider 233 and the second slider 234 to approach or separate from each other when the adjusting shaft 236 rotates. The distance between the first and second sliders 233 and 234 is simultaneously adjusted by the adjustment shaft 236, thereby adjusting the tension of the adjustable chain 240.
Referring to fig. 9 to 11, a plurality of limiting grooves 237 are disposed on a side of the fixing block 235 away from the first sliding block 233 and the second sliding block 234; the tail end of the adjusting shaft 236 is hinged with a handle 238; the handle 238 is adapted to be pressed into one of the retaining grooves 237 when subjected to an external force. When the tension adjusting device is used, the handle 238 is lifted, and the handle 238 is rotated to drive the adjusting shaft 236 to rotate, so that tension adjustment of the adjustable chain 240 is completed.
In this embodiment, the adjusting shaft 236 and the fixing block 235 are disposed on the sidewall of the working platform 110. In other embodiments, the adjusting shaft 236 and the fixing block 235 may be disposed on the upper surface of the working platform 110.
In this embodiment, the first and second secondary drive rods 210 and 220 each include a universal joint. The distance between the multiple driving rods is enlarged through the universal coupling, so that different customer requirements are met.
In summary, the present invention provides a stably tensioned stepping motor assembly, which includes a centering device for a stepping motor and a multi-driving-rod synchronizing device; the multi-driving-rod synchronizing device is arranged on the working platform of the centering device for the stepping motor and is suitable for being driven by the stepping motor of the centering device for the stepping motor; the multi-drive rod synchronizing device comprises a first auxiliary drive rod, a second auxiliary drive rod and an adjusting component; the bottoms of the first auxiliary driving rod and the second auxiliary driving rod are fixedly provided with synchronous gears; the two synchronous gears are connected with main driving teeth of a driving rod of the centering device for the stepping motor through an adjustable chain; the main driving gear and the two synchronous gears have the same tooth number; the adjusting components are arranged on two sides of the adjustable chain and are suitable for adjusting the tension of the adjustable chain. The tension of the adjustable chain is adjusted through the adjusting assembly, the tension of the adjustable chain is guaranteed to be always within a preset range, sliding teeth of the synchronizing gear and the main driving gear are prevented, and the synchronizing performance of the multi-driving rod based on the control of the stepping motor is improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A stably tensioned stepper motor assembly comprises a centering device for a stepper motor and a multi-drive rod synchronization device;
the multi-driving-rod synchronizing device is arranged on the working platform of the centering device for the stepping motor and is suitable for being driven by the stepping motor of the centering device for the stepping motor;
the multi-drive rod synchronizing device comprises a first auxiliary drive rod, a second auxiliary drive rod and an adjusting component;
the bottoms of the first auxiliary driving rod and the second auxiliary driving rod are fixedly provided with synchronous gears;
the two synchronous gears are connected with main driving teeth of a driving rod of the centering device for the stepping motor through an adjustable chain;
the main driving gear and the two synchronous gears have the same tooth number;
the adjusting components are arranged on two sides of the adjustable chain and are suitable for adjusting the tension of the adjustable chain;
the adjusting assembly comprises a first adjusting gear and a second adjusting gear;
the first adjusting gear and the second adjusting gear are respectively arranged at the outer sides of the chains of the two synchronous gears connected with the main driving gear;
the first adjusting gear and the second adjusting gear are respectively arranged on the working platform in a sliding manner and are suitable for being fixed after the tension of the adjustable chain is adjusted; the adjusting assembly further comprises a first sliding block and a second sliding block;
the first adjusting gear and the second adjusting gear are respectively and rotatably connected to the first sliding block and the second sliding block;
the first sliding block and the second sliding block are connected to the working platform in a sliding mode; the adjusting component also comprises a fixed block and an adjusting shaft;
the adjusting shaft penetrates through the fixed block;
the adjusting shaft is provided with a positive thread and a negative thread respectively;
the first sliding block and the second sliding block are respectively in threaded connection with the positive threads and the negative threads on the adjusting shaft and are suitable for adjusting the first sliding block and the second sliding block to be close to or far away from each other when the adjusting shaft rotates;
the centering device for a stepping motor includes:
the device comprises a working platform, a stepping motor, a driving rod, a lifting assembly and a centering assembly;
the driving rod penetrates through the working platform;
the stepping motor is fixedly arranged below the working platform and is suitable for driving the driving rod to rotate;
the driving rod penetrates through the centering assembly;
the centering assembly is arranged on the lifting assembly and is suitable for centering the driving rod when the lifting assembly is lifted;
the centering assembly comprises a rotating sleeve ring, a centering chain, a sliding plate, a lifting plate and three centering gears;
a centering circular groove is formed in the center of the lifting plate;
the sliding plate is embedded in the lifting plate, and the centering area of the sliding plate leaks out of the centering circular groove;
a rotating opening suitable for the rotating lantern ring to be connected in a rotating mode is formed in the center of the sliding plate;
the driving rod penetrates through the rotating lantern ring and then extends out;
the three centering gears are arranged around the rotating lantern ring in an equilateral triangle and are fixed on the sliding plate through corresponding fixing columns;
the three centering gears synchronously rotate through a centering chain;
one chain link of the centering chain is connected with the outer wall of the rotating sleeve ring and is suitable for driving the centering chain to rotate when the rotating sleeve ring rotates;
each centering gear extends out of a supporting block towards the inner wall of the centering circular groove, and the supporting blocks are suitable for supporting against the inner wall of the centering circular groove when the centering chain rotates so as to complete centering of the driving rod inserted into the rotating sleeve ring.
2. The stably tensioned stepper motor assembly of claim 1, wherein a side of the fixed block remote from the first slider and the second slider is provided with a plurality of limiting grooves;
the tail end of the adjusting shaft is hinged with a handle;
the handle is suitable for being pressed into one of the limiting grooves when external force is applied.
3. The tension stabilized stepper motor assembly of claim 1, wherein the adjustment shaft and the fixed block are disposed on a side wall of the work platform.
4. The tension stabilized stepper motor assembly of claim 1, wherein the first secondary drive rod and the second secondary drive rod each include a universal joint.
5. The tension stabilized stepper motor assembly of claim 1, wherein the centering chain is fixedly connected to the rotating collar via a telescoping block, the telescoping block being rotatably connected to the centering chain at a junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111066612.7A CN113517783B (en) | 2021-09-13 | 2021-09-13 | Steady stepper motor subassembly of tensioning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111066612.7A CN113517783B (en) | 2021-09-13 | 2021-09-13 | Steady stepper motor subassembly of tensioning |
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| Publication Number | Publication Date |
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| CN113517783A CN113517783A (en) | 2021-10-19 |
| CN113517783B true CN113517783B (en) | 2021-11-26 |
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| CN103909447B (en) * | 2012-12-31 | 2016-06-29 | 上海和鹰机电科技股份有限公司 | Abrasive band knife sharpening device |
| EP3376530B1 (en) * | 2017-03-16 | 2019-08-14 | ATOTECH Deutschland GmbH | Automated substrate holder loading device |
| CN208552734U (en) * | 2018-02-01 | 2019-03-01 | 天津昌和生物医药技术有限公司 | A kind of high pressure injector driving device |
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| CN112828764B (en) * | 2020-12-29 | 2022-05-03 | 无锡鹰贝精密液压有限公司 | Floating self-centering clamp for valve sleeve honing |
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| CN207433762U (en) * | 2017-07-13 | 2018-06-01 | 陆玉亮 | A kind of offshore oil production drilling platform of stability and high efficiency |
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