CN214412496U - Transmission sleeve, motor assembly and medical equipment - Google Patents
Transmission sleeve, motor assembly and medical equipment Download PDFInfo
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- CN214412496U CN214412496U CN202023350528.1U CN202023350528U CN214412496U CN 214412496 U CN214412496 U CN 214412496U CN 202023350528 U CN202023350528 U CN 202023350528U CN 214412496 U CN214412496 U CN 214412496U
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- sleeve
- hole
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- sleeve body
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Abstract
The utility model discloses a transmission sleeve, a motor component and medical equipment, wherein the transmission sleeve comprises a sleeve body, and the sleeve body is provided with a sleeve hole for fixedly sleeving on a motor shaft; the shock-absorbing sleeve comprises a circumferential shock-absorbing part which is connected with the outer peripheral surface of the sleeve body in an adaptive mode. The utility model discloses technical scheme can carry out the shock attenuation to the transmission between motor shaft and the transmission shaft.
Description
Technical Field
The utility model relates to the field of medical treatment, in particular to transmission sleeve, motor element and medical equipment.
Background
Some medical equipment (such as an infusion pump or an injection pump) is generally provided with a stepping motor, a motor shaft of the stepping motor generates vibration due to electric pulses, and the vibration of the motor shaft causes vibration of a transmission shaft connected with the motor shaft, so that the performance of the medical equipment can be reduced, and if the performance of the medical equipment is not accurate, the infusion volume of the infusion pump or the injection pump is not accurate, noise is generated, and harm is brought to patients.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a transmission sleeve aims at carrying out the shock attenuation to the transmission between motor shaft and the transmission shaft.
In order to achieve the above object, the present invention provides a transmission sleeve, which comprises a sleeve body, wherein the sleeve body has a sleeve hole for fixedly sleeving on a motor shaft; the shock-absorbing sleeve comprises a circumferential shock-absorbing part which is connected with the outer peripheral surface of the sleeve body in an adaptive mode.
Optionally, the damping sleeve further includes an axial damping portion, the axial damping portion is connected to one side edge of the circumferential damping portion, and the axial damping portion abuts against one side surface of the sleeve body.
Optionally, a connecting hole is formed in the sleeve body, a connecting convex column is arranged on one side face of the axial damping portion, and the connecting convex column is arranged in the connecting hole in a matched mode.
Optionally, the connecting hole includes a first hole and a second hole that are connected to each other, the first hole and the second hole are sequentially distributed in the axial direction of the sleeve body, the first hole is located on one side of the second hole close to the axial shock absorption portion, and the diameter or equivalent diameter of the first hole is smaller than the diameter or equivalent diameter of the second hole; the connecting convex column comprises a first convex column which is matched and arranged in the first hole and a second convex column which is matched and arranged in the second hole.
Optionally, the diameter or equivalent diameter of the first bore is at least partially tapered in a direction towards the axial shock absorber; and/or the diameter or equivalent diameter of the second bore is at least partially tapered in a direction towards the axial shock absorber.
Optionally, a limit ring protrusion is disposed on a periphery of the sleeve hole, the axial damping portion abuts against an outer annular surface of the limit ring protrusion, and the axial damping portion protrudes from the limit ring protrusion in a direction away from the sleeve body.
Optionally, the damping sleeve further comprises a limiting part, the limiting part is connected to the other side edge of the circumferential damping part, a limiting notch is formed in one edge of the outer circumferential surface of the sleeve body, and the limiting part is arranged in the limiting notch.
Optionally, the sleeve body is in the shape of a plum-blossom wheel, and the limiting notch is formed in the protruding portion of the sleeve body.
Optionally, the sleeve body is made of hard glue or metal.
Optionally, the transmission sleeve is in a plum-blossom-shaped wheel shape as a whole.
Optionally, the damping sleeve is made of soft rubber.
Optionally, the soft glue is silica gel or rubber.
The utility model discloses still provide a motor element, motor element include motor, transmission shaft and the transmission cover.
The utility model discloses still provide a medical equipment, medical equipment includes motor element.
Optionally, the medical device is a syringe pump or an infusion pump.
The technical proposal of the utility model is that the transmission sleeve is connected with the motor shaft and the transmission shaft, so that the torsion of the motor shaft is transmitted to the transmission shaft through the transmission sleeve, and the transmission shaft is driven to rotate; and through the cover body that makes the transmission cover include with locate the global circumference shock-absorbing part of cover body to utilize the cushioning effect of circumference shock-absorbing part, cushion the vibrations of motor shaft, thereby can reduce the vibration range that transmits to the transmission shaft, thereby reduce the vibrations of transmission shaft.
So, can realize the transmission shock attenuation to the motor shaft under the prerequisite that does not change the motor performance to realize motor element and the medical equipment that have the shock attenuation effect, thereby can guarantee/improve medical equipment's performance, if can make the transfer pump infusion volume accurate, and the noise is less, in order to avoid bringing harm to the disease.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a transmission sleeve of the present invention;
FIG. 2 is an exploded view of the drive sleeve of FIG. 1;
FIG. 3 is a cross-sectional view of the drive sleeve of FIG. 1;
FIG. 4 is an exploded schematic view of the drive sleeve and the drive shaft of FIG. 1;
fig. 5 is a cross-sectional view of an embodiment of the motor assembly of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1000 | |
21 | |
| 100 | |
22 | Axial shock-absorbing |
| 10 | |
23 | Connecting |
| 110 | Trepan boring | 231 | |
| 11 | Connecting |
232 | |
| 111 | |
24 | Limiting |
| 112 | |
200 | Transmission shaft |
| 12 | Spacing ring convex | 30 | |
| 13 | |
31 | Counter bore |
| 14 | PositioningRing convex | 300 | |
| 20 | Shock-absorbing |
40 | Motor shaft |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a transmission sleeve for the motor specifically is used for connecting motor shaft and transmission shaft.
In the embodiment of the present invention, as shown in fig. 1 and 4, the driving sleeve 100 includes a sleeve body 10, the sleeve body 10 has a sleeve hole 110 for fixedly sleeving on the motor shaft 40 to transmit the torque of the motor shaft 40; and a damper housing 20, the damper housing 20 including a circumferential damper portion 21 fittingly coupled to an outer circumferential surface of the housing body 10 to damp vibration in a direction perpendicular to the axis.
Specifically, the transmission sleeve 100 is sleeved on the motor shaft 40; one end of the transmission shaft 200 is provided with a connecting part, the connecting part is provided with a groove 30, and the transmission sleeve 100 is fittingly installed in the groove 30 so as to realize the connection of the motor shaft 40 and the transmission shaft 200 through the transmission sleeve 100.
The technical scheme of the utility model is that the transmission sleeve 100 is adopted to connect the motor shaft 40 and the transmission shaft 200, so that the torsion of the motor shaft 40 is transmitted to the transmission shaft 200 through the transmission sleeve 100, and the transmission shaft 200 is driven to rotate; and the transmission sleeve 100 comprises the sleeve body 10 and the circumferential damping part 21 arranged on the circumferential surface of the sleeve body 10, so that the vibration of the motor shaft 40 is damped by the damping effect of the circumferential damping part 21, thereby reducing the vibration amplitude transmitted to the transmission shaft 200 and reducing the vibration of the transmission shaft 200.
So, can realize the transmission shock attenuation to motor shaft 40 under the prerequisite that does not change the motor performance to realize motor element 1000 and the medical equipment that have the shock attenuation effect, thereby can guarantee/improve medical equipment's performance, if can make the transfer pump infusion volume accurate, and the noise is less, in order to avoid bringing harm to the disease.
Further, referring to fig. 2 and 3, the damping sleeve 20 further includes an axial damping portion 22, the axial damping portion 22 is connected to a side edge of the circumferential damping portion 21, and the axial damping portion 22 abuts against a side surface of the sleeve body 10.
Specifically, the axial damping portion 22 is disposed at a side edge of the axial damping portion 22 away from the motor, and the axial damping portion 22 is located between the sleeve body 10 and the bottom of the groove 30 to buffer the vibration of the motor shaft 40 in the axial direction during transmission, so as to further reduce the vibration of the transmission shaft 200.
Further, the axial damping portion 22 and the circumferential damping portion 21 are integrally formed (e.g., integrally injection molded) to increase the connection strength between the circumferential damping portion 21 and the sleeve body 10, so as to prevent the circumferential damping portion 21 from falling off the sleeve body 10.
Meanwhile, the axial damping part 22 increases the contact area between the damping sleeve 20 and the transmission shaft 200, and when the motor rotates, the area of the transmission sleeve 100 bearing the vibration amplitude of the motor shaft 40 increases, so as to improve the buffering effect of the transmission sleeve 100 and improve the damping effect.
Further, a connecting hole 11 is formed in the sleeve body 10, a connecting convex column 23 is arranged on one side face of the axial damping portion 22, and the connecting convex column 23 is arranged in the connecting hole 11 in a matched mode.
Therefore, the connection convex columns 23 are fixed in the connection holes 11, so that the connection strength between the damping sleeve 20 and the sleeve body 10 is increased, the damping sleeve 20 is not easy to fall off, meanwhile, the damping sleeve 20 is tightly connected with the sleeve body 10, the loss of the transmission sleeve 100 in the process of transmitting the torsion of the motor shaft 40 can be reduced, and the transmission precision is improved.
In the present embodiment, the connection hole 11 is provided in plurality to increase the connection area of the cover body 10 and the damping sleeve 20.
Specifically, a plurality of connecting holes 11 are uniformly distributed in the circumferential direction of trepanning 110, so that the stress of sleeve body 10 and damping sleeve 20 is balanced, one side of damping sleeve 20 is prevented from dropping off sleeve body 10, the service life of damping sleeve 20 is prolonged, and the torque transmission of motor shaft 40 is balanced.
Of course, in other embodiments, the number of the connection holes 11 and the positions of the connection holes 11 on the sleeve body 10 may be set as required; or the connection hole 11 may not be provided to reduce the cost and the like.
Further, the connection hole 11 includes a first hole 111 and a second hole 112 connected to each other, the first hole 111 and the second hole 112 are sequentially distributed in the axial direction of the sleeve body 10, the first hole 111 is located on one side of the second hole 112 close to the axial shock absorption portion 22, and a diameter or an equivalent diameter of the first hole 111 is smaller than a diameter or an equivalent diameter of the second hole 112; the connecting protrusion 23 includes a first protrusion 231 disposed in the first hole 111 and a second protrusion 232 disposed in the second hole 112.
Therefore, as the diameter or the equivalent diameter of the first hole 111 is smaller than the diameter or the equivalent diameter of the second hole 112, and the diameter or the equivalent diameter of the first convex column 231 matched with the first hole is smaller than the diameter or the equivalent diameter of the second convex column 232, an inverse buckle between the connecting hole 11 and the connecting convex column 23 is formed, when the connecting hole 11 is connected with the connecting convex column 23, the first hole 111 limits the second convex column 232, so that the second convex column 232 is not easy to pull out in the axial direction away from the motor shaft 40, the axial shock absorption part 22 is not easy to separate from the sleeve body 10, and the service life of the transmission sleeve 100 is prolonged.
Further, the diameter or equivalent diameter of the first hole 111 is at least partially reduced in a direction close to the axial shock absorption portion 22; and/or the diameter or equivalent diameter of the second bore 112 is at least partially tapered in a direction towards the axial shock absorber 22.
Specifically, in the present embodiment, the diameters or equivalent diameters of the first hole 111 and the second hole 112 are reduced in a direction close to the axial damping portion 22, so as to increase the adhesion force between the connecting boss 23 and the connecting hole 11, and make the connection between the sleeve body 10 and the damping sleeve 20 tighter.
Of course, in other embodiments, other forms of the connection hole 11 and the connection boss 23 may be provided to reinforce the connection between the sleeve body 10 and the damping sleeve 20, such as the sleeve body 10 is provided with a connection hole having a screw shape and the axial damping portion 22 is provided with a connection boss matching with the screw-shaped connection hole, or the connection hole 11 has an overall diameter or an equivalent diameter that is at least partially reduced in a direction approaching the axial damping portion 22.
Further, as shown in fig. 3, a limit ring protrusion 12 is disposed on a periphery of the sleeve hole 110, the axial shock absorbing portion 22 abuts against an outer circumferential surface of the limit ring protrusion 12, and the axial shock absorbing portion 22 protrudes from the limit ring protrusion 12 in a direction away from the sleeve body 10, so as to prevent the sleeve body 10 from contacting with a bottom of the groove 30, and reduce vibration of the transmission shaft 200 and the motor.
Preferably, the other circumferential edge of the sleeve hole 110 is provided with a positioning ring protrusion 14 to limit the position of the driving sleeve 100 when the driving sleeve 100 is connected to the motor shaft 40, so as to prevent the driving sleeve 100 from contacting the surface of the motor and increasing the vibration of the driving sleeve 100.
Further, the damping sleeve 20 further comprises a limiting portion 24, the limiting portion 24 is connected to the other side edge of the circumferential damping portion 21, a limiting notch 13 is formed in one edge of the outer circumferential surface of the sleeve body 10, and the limiting portion 24 is arranged in the limiting notch 13. Thus, the anti-dropping can be further realized.
In this embodiment, cover body 10 is the plum blossom wheel form, spacing breach 13 is located the bellying of cover body 10 locates spacing breach 13 department through spacing portion 24, and it is spacing to a side that shock attenuation cover 20 and cover body 10 are close to the motor, has increased shock attenuation cover 20 and cover body 10's the degree of connection simultaneously.
Further, the sleeve body 10 is made of hard glue or metal to ensure transmission of the output torque of the motor shaft 40.
Further, the whole transmission sleeve 100 is in the shape of a plum-blossom wheel, on one hand, the contact area between the damping sleeve 20 and the transmission shaft 200 is increased by the transmission sleeve 100 in the shape of the plum-blossom wheel, so that a better damping effect is achieved, and on the other hand, the transmission sleeve 100 in the shape of the plum-blossom wheel is stressed evenly during working and can transmit larger torque.
Of course, in other embodiments, the driving sleeve 100 may be provided with other shapes as a whole, such as a rectangular shape, a hexagonal shape, or the like.
Further, the damping sleeve 20 is made of soft rubber to buffer the vibration of the motor shaft 40, and meanwhile, the soft rubber has good adhesive force, so that the connecting force between the sleeve body 10 and the transmission shaft 200 can be increased.
Optionally, the soft glue is silica gel or rubber.
The utility model discloses still provide a motor element 1000, refer to fig. 4, this motor element 1000 includes motor 300, transmission shaft 200 and driving sleeve 100, and above-mentioned embodiment is referred to this driving sleeve 100's concrete structure, because this motor element 1000 has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and it is here no longer repeated one by one.
Specifically, one end of the transmission shaft 200 is provided with a connecting portion, the connecting portion has a groove 30, and the transmission sleeve 100 is fittingly installed in the groove 30, so as to connect the motor shaft 40 and the transmission shaft 200 through the transmission sleeve 100.
In an operating state, the circumferential and axial vibration absorbing parts 21 and 22 between the sleeve body 10 and the transmission shaft 200 have a buffering effect on vibration of the motor shaft 40 to reduce transmission vibration between the motor shaft and the transmission shaft, thereby forming the motor assembly 1000 having a vibration absorbing effect.
In this embodiment, the groove 30 is adapted to the driving sleeve 100, for example, the shape thereof may be a plum-blossom wheel shape.
Optionally, a counter bore 31 is further disposed in the transmission shaft 200, and the counter bore 31 is disposed at the bottom of the groove 30, so as to be suitable for motor shafts 40 with different lengths, and prevent the motor shaft 40 from abutting against the transmission shaft 200 when the motor shaft 40 is too long and extends out of the transmission sleeve 100, thereby affecting the damping effect of the transmission sleeve 100.
The utility model discloses still provide a medical equipment, this medical equipment includes motor element and transmission cover, and the concrete structure of this transmission cover refers to above-mentioned embodiment, because this motor element has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
Optionally, the medical device comprises an infusion pump or a syringe pump.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. A driving sleeve is used for connecting a motor shaft and a transmission shaft, and is characterized by comprising:
the sleeve body is provided with a sleeve hole for fixedly sleeved on the motor shaft;
the damping sleeve comprises a circumferential damping part which is connected to the outer circumferential surface of the sleeve body in an adaptive manner;
the damping sleeve further comprises an axial damping portion, the axial damping portion is connected to one side edge of the circumferential damping portion, and the axial damping portion is abutted to one side face of the sleeve body.
2. The transmission sleeve as claimed in claim 1, wherein the sleeve body is provided with a connecting hole, and one side surface of the axial damping portion is provided with a connecting convex column which is fittingly arranged in the connecting hole.
3. The transmission sleeve as claimed in claim 2, wherein the connection hole comprises a first hole and a second hole which are connected with each other, the first hole and the second hole are sequentially distributed in the axial direction of the sleeve body, the first hole is positioned on one side of the second hole close to the axial damping portion, and the diameter or equivalent diameter of the first hole is smaller than that of the second hole;
the connecting convex column comprises a first convex column which is matched and arranged in the first hole and a second convex column which is matched and arranged in the second hole.
4. A drive sleeve according to claim 3, wherein the diameter or equivalent diameter of the first bore is at least partially tapered in a direction towards the axial damping portion; and/or the presence of a gas in the gas,
the diameter or equivalent diameter of the second bore is at least partially tapered in a direction towards the axial shock absorber.
5. The drive sleeve as recited in claim 1, wherein a circumferential edge of the sleeve hole is provided with a retainer ring protrusion, the axial damping portion abuts against an outer circumferential surface of the retainer ring protrusion, and the axial damping portion protrudes beyond the retainer ring protrusion in a direction away from the sleeve body.
6. The transmission sleeve as claimed in any one of claims 1 to 5, wherein the damping sleeve further comprises a limiting portion connected to the other side edge of the circumferential damping portion, one edge of the outer circumferential surface of the sleeve body is provided with a limiting notch, and the limiting portion is arranged in the limiting notch.
7. The transmission sleeve as claimed in claim 6, wherein the sleeve body is in the shape of a plum-blossom wheel, and the limiting notch is arranged on the convex part of the sleeve body; and/or the presence of a gas in the gas,
the sleeve body is made of hard glue or metal; and/or the presence of a gas in the gas,
the transmission sleeve is in a plum-blossom-shaped wheel shape as a whole; and/or the presence of a gas in the gas,
the damping sleeve is made of soft rubber.
8. An electric motor assembly, characterized in that the electric motor assembly comprises an electric motor, a drive shaft and a drive sleeve according to any one of claims 1-7.
9. A medical device, characterized in that it comprises a motor assembly according to claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023350528.1U CN214412496U (en) | 2020-12-31 | 2020-12-31 | Transmission sleeve, motor assembly and medical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023350528.1U CN214412496U (en) | 2020-12-31 | 2020-12-31 | Transmission sleeve, motor assembly and medical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214412496U true CN214412496U (en) | 2021-10-15 |
Family
ID=78043854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023350528.1U Active CN214412496U (en) | 2020-12-31 | 2020-12-31 | Transmission sleeve, motor assembly and medical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214412496U (en) |
-
2020
- 2020-12-31 CN CN202023350528.1U patent/CN214412496U/en active Active
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