CN112271867A - Electromechanical integrated electric push rod for medical CT machine - Google Patents
Electromechanical integrated electric push rod for medical CT machine Download PDFInfo
- Publication number
- CN112271867A CN112271867A CN202011297705.6A CN202011297705A CN112271867A CN 112271867 A CN112271867 A CN 112271867A CN 202011297705 A CN202011297705 A CN 202011297705A CN 112271867 A CN112271867 A CN 112271867A
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- China
- Prior art keywords
- push rod
- nut
- worm
- sleeve
- box body
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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
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
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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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
-
- 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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
- H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses an electromechanical integrated electric push rod for a medical CT machine, which comprises a box body, wherein a motor and a push rod sleeve are arranged on the box body, a worm gear assembly is arranged in the box body and comprises a worm gear and a worm, the worm is vertically arranged in the box body and is connected with an output shaft, the lower end of the worm is connected with a first brake and a second brake, the second brake is connected with the first brake and then arranged below the box body, the worm gear is matched and connected with a lead screw of a ball screw assembly, the lead screw of the ball screw assembly is arranged in the push rod sleeve, a nut of the ball screw assembly is movably arranged in the push rod sleeve, the nut is connected to the tail end of the push rod, the motor drives the lead screw to rotate through the worm gear assembly, and the lead. Through the mode, the electromechanical integrated electric push rod for the medical CT machine can brake the electric push rod in time, accurately control the stroke, and is simple in structure, safe and reliable.
Description
Technical Field
The invention relates to the field of electric push rods, in particular to an electromechanical integrated electric push rod for a medical CT machine.
Background
The radiographic CT on the market currently requires the use of an electric push rod as a moving device to adjust the position of the patient. The existing electric push rod has insufficient stroke control and braking performance, inaccurate displacement precision and can not meet the use requirement.
Disclosure of Invention
The invention mainly solves the technical problem of providing the electromechanical integrated electric push rod for the medical CT machine, which can brake the electric push rod in time, accurately control the stroke, and has simple structure, safety and reliability.
In order to solve the technical problems, the invention adopts a technical scheme that: the electromechanical integrated electric push rod for the medical CT machine comprises a box body, wherein a motor is installed in the vertical direction of the box body, a push rod sleeve is arranged in the horizontal direction of the box body, an output shaft of the motor extends into the box body, a worm gear assembly is installed in the box body and comprises a worm gear and a worm, the worm is vertically arranged in the box body and is connected with the output shaft, the lower end of the worm is connected with a first brake and a second brake, the second brake is connected with the first brake and then installed below the box body, the worm gear is connected with a lead screw of the ball screw assembly in a matching manner, the lead screw of the ball screw assembly is arranged in the push rod sleeve, a nut of the ball screw assembly is movably installed in the push rod sleeve, the nut is connected to the tail end of the push rod, and the motor drives the lead, the lead screw rotates to enable the nut to slide in the push rod sleeve in a reciprocating mode so as to drive the push rod to move.
In a preferred embodiment of the invention, a worm screw thread sleeve is connected to the outer side of the worm screw in a threaded manner, a groove is formed in the worm screw thread sleeve, and an elastic cylindrical pin which is in contact with the worm screw is arranged in the groove.
In a preferred embodiment of the present invention, a connector is disposed at a front end of the push rod.
In a preferred embodiment of the invention, the right end of the push rod sleeve is connected to the box body through a locking nut, and a supporting sleeve for supporting the push rod is arranged inside the left end of the push rod sleeve.
In a preferred embodiment of the invention, a straight-through type oil filling cup is further installed on the right side of the box body.
In a preferred embodiment of the present invention, the screw shaft has a double thread groove formed by coiling, a ball passage is formed between the double thread grooves, the double thread groove is movably connected with a nut, a plurality of balls matched with the ball passage are arranged between the nut and the screw shaft, the rear end of the nut is connected with a support sleeve, the inner side of the support sleeve is further provided with a safety nut, the safety nut is sleeved outside the screw shaft, sliding friction is formed between the safety nut and the screw shaft, the support sleeve is further arranged in the support sleeve, the support sleeve is attached to the rear end surface of the nut, and a ball body is arranged between the rear end surface of the support sleeve and the front end surface of the safety nut.
The invention has the beneficial effects that: the electromechanical integrated electric push rod for the medical CT machine can brake the electric push rod in time, accurately control the stroke, and has the advantages of simple structure, safety and reliability.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural view of a preferred embodiment of an electromechanical integrated electric push rod for a medical CT machine according to the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 1;
FIG. 4 is a left side view of FIG. 1;
FIG. 5 is a schematic view of a portion of the structure of FIG. 1;
the parts in the drawings are numbered as follows: 1. the oil injection device comprises a box body, 11, a straight-through type oil injection cup, 2, a motor, 21, an output shaft, 3, a push rod sleeve, 31, a locking nut, 32, a support sleeve, 4, a worm gear assembly, 41, a worm gear, 42, a worm, 43, a worm thread sleeve, 44, an elastic cylindrical pin, 5, a first brake, 6, a second brake, 7, a ball screw assembly, 71, a screw rod, 72, a nut, 73, a double thread groove, 74, a ball passage, 75, a safety nut, 76, a ball, 77, a support sleeve, 78, a support sleeve, 79, a ball body, 8, a push rod, 81 and a connecting head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, an electromechanical integrated electric push rod for a medical CT machine includes a box 1, a motor 2 is installed in the vertical direction of the box 1, a push rod sleeve 3 is installed in the horizontal direction of the box 1, an output shaft 21 of the motor 2 extends into the box 1, a worm and gear assembly 4 is installed in the box 1, the worm and gear assembly 4 includes a worm wheel 41 and a worm 42, the worm 42 is vertically disposed in the box 1 and connected to the output shaft 21 through a deep groove ball bearing (not shown), a first brake 5 and a second brake 6 are connected to a lower end of the worm 42, the second brake 5 is connected to the first brake 6 and then installed below the box 1, the worm wheel 41 is connected to a lead screw 71 of a ball screw assembly 7 in a matching manner, a lead screw 71 of the ball screw assembly 7 is disposed in the push rod sleeve 3, a nut 72 of the ball screw assembly 7 is movably installed in the push rod sleeve 3, the nut 72 is connected with the push rod 8, the motor 2 drives the lead screw 71 to rotate through the worm gear assembly 7, and the lead screw 71 rotates to enable the nut 72 to slide in the push rod sleeve 3 in a reciprocating mode so as to drive the push rod 8 to move. The first brake 5 and the second brake 6 brake with the worm 42, ensuring that the stroke of the push rod 8 can be accurately controlled.
In addition, a worm screw thread sleeve 43 is connected to the outer side of the worm 42 in a threaded manner, a groove is formed in the worm screw thread sleeve 43, and an elastic cylindrical pin 44 which is in contact with the worm 42 is arranged in the groove.
In addition, the front end of the push rod 8 is provided with a connector 81.
In addition, the right end of push rod sleeve 3 is connected to box 1 through lock nut 31, and the inside support sleeve 32 that is used for supporting push rod 8 that is equipped with of the left end of push rod sleeve 3.
In addition, a straight-through type oil filling cup 11 is also arranged at the right side of the box body 1.
In addition, the screw 71 is provided with a double-thread groove 73 formed by coiling, a ball passage 74 is formed between the double-thread groove 73, the double-thread groove 73 is movably connected with a nut 72, a plurality of balls 76 matched with the ball passage 74 are arranged between the nut 72 and the screw 71, the rear end of the nut 72 is connected with a support sleeve 77, the inner side of the support sleeve 77 is also provided with a safety nut 75, the safety nut 75 is sleeved on the outer side of the screw 71, sliding friction is formed between the safety nut 75 and the screw 71, a support sleeve 78 is further arranged in the support sleeve 77, the support sleeve 78 is attached to the rear end face of the nut, and a ball body 79 is arranged between the rear end face of the support sleeve 78 and the front end face of the safety nut.
Different from the prior art, the electromechanical integrated electric push rod for the medical CT machine can brake the electric push rod in time, accurately control the stroke, and has the advantages of simple structure, safety and reliability.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. An electromechanical integrated electric push rod for a medical CT machine comprises a box body, wherein a motor is installed in the vertical direction of the box body, a push rod sleeve is arranged in the horizontal direction of the box body, and the electromechanical integrated electric push rod is characterized in that an output shaft of the motor extends into the box body, a worm gear assembly is installed in the box body and comprises a worm gear and a worm, the worm is vertically arranged in the box body and is connected with the output shaft, the lower end of the worm is connected with a first brake and a second brake, the second brake is connected with the first brake and then is installed below the box body, the worm gear is connected with a lead screw of the ball screw assembly in a matching manner, a lead screw of the ball screw assembly is arranged in the push rod sleeve, a nut of the ball screw assembly is movably installed in the push rod sleeve, the nut is connected to the tail end of the, the lead screw rotates to enable the nut to slide in the push rod sleeve in a reciprocating mode so as to drive the push rod to move.
2. The mechatronic electric putter of claim 1, wherein a worm screw thread sleeve is connected to the outer side of the worm screw in a threaded manner, a groove is formed in the worm screw thread sleeve, and an elastic cylindrical pin contacting with the worm screw is arranged in the groove.
3. The mechanical and electrical integration electric push rod for the medical CT machine according to claim 1, wherein the front end of the push rod is provided with a connector.
4. The mechanical and electrical integration electric push rod for the medical CT machine according to claim 3, wherein the right end of the push rod sleeve is connected to the box body through a locking nut, and a support sleeve for supporting the push rod is arranged inside the left end of the push rod sleeve.
5. The mechatronic electric putter of claim 4, wherein a straight-through type oil filling cup is further installed on the right side of the box.
6. The mechanical and electrical integration electric push rod for the medical CT machine according to any one of claims 1 to 5, wherein the screw shaft is provided with double thread grooves formed by coiling, a ball passage is formed between the double thread grooves, a nut is movably connected to the double thread grooves, a plurality of balls matched with the ball passage are arranged between the nut and the screw shaft, a support sleeve is connected to the rear end of the nut, a safety nut is further installed inside the support sleeve, the safety nut is sleeved outside the screw shaft, sliding friction is formed between the safety nut and the screw shaft, a support sleeve is further installed inside the support sleeve, the support sleeve is attached to the rear end face of the nut, and a ball body is arranged between the rear end face of the support sleeve and the front end face of the safety nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011297705.6A CN112271867A (en) | 2020-11-19 | 2020-11-19 | Electromechanical integrated electric push rod for medical CT machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011297705.6A CN112271867A (en) | 2020-11-19 | 2020-11-19 | Electromechanical integrated electric push rod for medical CT machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112271867A true CN112271867A (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011297705.6A Pending CN112271867A (en) | 2020-11-19 | 2020-11-19 | Electromechanical integrated electric push rod for medical CT machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN112271867A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114572911A (en) * | 2022-03-10 | 2022-06-03 | 浙江鼎力机械股份有限公司 | Scissor fork type aerial work platform and scissor fork lifting assembly thereof |
-
2020
- 2020-11-19 CN CN202011297705.6A patent/CN112271867A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114572911A (en) * | 2022-03-10 | 2022-06-03 | 浙江鼎力机械股份有限公司 | Scissor fork type aerial work platform and scissor fork lifting assembly thereof |
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