CN215817833U - Horizontal motion control system of diagnostic bed - Google Patents
Horizontal motion control system of diagnostic bed Download PDFInfo
- Publication number
- CN215817833U CN215817833U CN202122112459.9U CN202122112459U CN215817833U CN 215817833 U CN215817833 U CN 215817833U CN 202122112459 U CN202122112459 U CN 202122112459U CN 215817833 U CN215817833 U CN 215817833U
- Authority
- CN
- China
- Prior art keywords
- motor
- control board
- main control
- bed
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Invalid Beds And Related Equipment (AREA)
Abstract
The utility model provides a horizontal motion control system of a diagnostic bed, which relates to the technical field of medical equipment, acts on a bed board and comprises: the motor is driven by a motor driver and is provided with an encoder; the transmission mechanism is driven by a motor through a speed reducer; the main control board is communicated with the motor driver so as to drive the motor to work through the motor driver and obtain the coding feedback of the encoder; the clutch button is connected with the main control board and used for sending a state signal to the main control board in a starting state; the motor driver controls the motor to enable, drives the bed board to move, returns a code to be fed back to the main control board, and the main control board reads the current bed board position according to the code feedback; the motor driver controls the motor to lose energy, applies pulling force to drive the bed board to move, the motor moves along with the movement and returns a code to be fed back to the main control board, the main control board updates the current bed board position according to the code feedback, the operation is simple and convenient, and the existing scanning bed needs the matching of multiple elements and has a complex structure.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a horizontal motion control system of a diagnostic bed.
Background
The CT scanning bed can use an external encoder, a clutch, a motor and the like to control the horizontal movement of the scanning bed in a matching way, the motor is used for driving the driving unit to drive the horizontal movement of the sickbed, the clutch is used for separating the motor from the transmission mechanism and can be manually dragged when the clutch switch is triggered, and the external encoder is used for recording the position of the sickbed. Under the condition that the clutch switch is triggered, the motor and the lead screw are in a separated state, the motor does not move at the moment, the sickbed moves independently, and the external encoder cannot identify the position of the scanning bed, so that the conventional CT scanning bed can only realize each function of the scanning bed by matching components such as the external encoder, the clutch and the motor, and has a complex structure and more components.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defects, the utility model aims to provide a horizontal motion control system of a diagnostic bed, which is used for solving the problems that the existing scanning bed needs to be matched with a plurality of components and has a complex structure.
The utility model discloses a horizontal motion control system of a diagnostic bed, which acts on a bed board and comprises:
the motor is driven by a motor driver, and an encoder is arranged on the motor and used for determining the moving distance of the bed plate;
the transmission mechanism is driven by the motor through a speed reducer to drive the bed plate to move;
the main control board is communicated with the motor driver so as to drive the motor to work through the motor driver and obtain the coding feedback of the encoder;
the clutch button is connected with the main control board and used for sending a state signal to the main control board in a starting state;
when the control system works, the main control board does not receive a state signal, namely the clutch button is not started, and sends an instruction to the motor driver, so that the motor driver controls the motor to enable, the bed board is driven to move, a code is returned to the main control board, and the main control board reads the current position of the bed board according to the code feedback;
when the master control board receives a state signal, namely the clutch button is started, an instruction is sent to the motor driver, the motor driver controls the motor to lose energy, tension is applied to drive the bed board to move, the motor moves along with the motor and returns a code to be fed back to the master control board, and the current bed board position is updated by the control board according to the code feedback
Preferably, the encoder is an incremental encoder or an absolute value encoder.
Preferably, the encoder is an incremental encoder, and the zero returning operation is executed when the control system is started.
Preferably, the main control board further comprises a prompt module for monitoring the status signal in real time and sending a prompt signal when the status signal is not received.
Preferably, the control system adopts a motor which is in a dynamic brake state and is in a free movement state after the rotating speed is less than a preset threshold value.
Preferably, the dynamic brake is set by adjusting the motor parameters, and the brake is in a free moving state after the rotating speed is less than a preset threshold value.
Preferably, when the control system is powered off, the pulling force is applied to drive the bed board to move, and the motor moves along with the bed board.
After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:
according to the scheme, the motor is controlled to lose or enable the motor according to the state of the clutch button through the main control board, when the motor enables, the encoder arranged on the motor is used for reading the movement distance of the bed board and returning to the main control board, when the motor fails, the bed board is moved by applying pulling force from the outside, the bed board and the motor are driven to move synchronously, the encoder on the motor can be used for recording encoded data at the moment, so that the movement distance of the bed board is obtained, the control on the horizontal movement of the diagnostic bed can be realized without the cooperation of a clutch and multiple devices of an external encoder, the operation is simple and convenient, the problem that the existing CT scanning bed needs the cooperation of multiple devices, and the structure is complex is solved.
Drawings
FIG. 1 is a schematic diagram of a horizontal motion control system of a diagnostic bed according to the present invention;
fig. 2 is a schematic structural diagram of a control circuit of a horizontal motion control system of a diagnostic bed according to the present invention.
Reference numerals: 1-a motor; 2-a reducer; 3-a transmission mechanism; 4-an encoder; 5, a main control board; 6-motor driver; 7-Clutch button.
Detailed Description
The advantages of the utility model are further illustrated in the following description of specific embodiments in conjunction with the accompanying drawings.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.
Example (b): the present embodiment provides a diagnostic bed horizontal movement control system, referring to fig. 1 and 2, acting on a bed plate (not shown in the figure), comprising:
the device comprises a motor 1 driven by a motor driver 6, wherein the motor 1 is provided with an encoder 4 for determining the moving distance of a bed plate;
in the above embodiment, the encoder 4 may be implemented by an incremental encoder or an absolute encoder, and is disposed on the motor 1, and does not need to be used with a clutch, unlike the prior art in which a clutch and an external encoder are necessary. It is further preferred that if the encoder 4 is an incremental encoder, a zeroing operation is performed at the start of the control system, the purpose of zeroing being to measure the position of the object movement with the encoder.
The transmission mechanism 3 is driven by the motor through the speed reducer 2 to drive the bed board to move;
a main control board 5, which communicates with the motor 1 driver (such as ports D1 and D4 in FIG. 2) to drive the motor to work through the motor driver 6 and obtain the coding feedback of the encoder 4 (port D2); the main control board 5 may transmit an enable signal or a disable signal to the motor driver in order to control the operating state of the motor.
A clutch button 7 connected to the main control board 5 (as shown in fig. 2, port D3), configured to send a status signal to the main control board 5 in a start state; it should be noted that the clutch button 7 is different from a clutch in the prior art, the clutch button 7 is only used for communicating with the main control board 5 and sending a status signal to identify that the bed board can move relatively to the bed frame under the action of an external force, that is, when the clutch button 7 is started, the main control board 5 controls the motor 1 to be disabled, the bed board can receive a manually applied pulling force to drive the bed board to move, when the clutch button 7 is not started, the main control board 5 controls the motor 1 to be enabled, and the bed board can move horizontally under the driving of the motor 1.
When the control system works, the main control board 5 does not receive a state signal, namely the clutch button 7 is not started, and sends an instruction to the motor driver 6, so that the motor driver 6 controls the motor 1 to enable, the bed board is driven to move, a code is returned to the main control board 5, and the main control board 5 reads the current bed board position according to the code feedback;
when the main control board 5 receives a state signal, namely the clutch button 7 is started, an instruction is sent to the motor driver 6, so that the motor driver 6 controls the motor 1 to lose energy, a pulling force is applied to drive the bed board to move, the motor 1 moves along with the movement and returns a code to be fed back to the main control board 5, and the main control board 5 updates the current position of the bed board according to the code feedback.
In this embodiment, the encoder 4 arranged on the motor 1 records the encoded data of the motor 1, and the distance corresponding to the movement of the bed board can be calculated according to the encoded data preset conversion formula, the motor 1 works in the forward direction or the reverse direction to correspondingly drive the bed board to move in the forward direction or the reverse direction, the encoder 4 can adopt positive and negative numerical value expression at the moment, and when the bed board moves by applying pulling force manually, the bed board and the motor 1 are driven to move synchronously, the encoder on the motor 1 can be relied on to record the encoded data at the moment, the movement distance of the bed board is further obtained, and the current position of the bed board can be updated, the control on the horizontal movement of the diagnosis bed can be realized without the cooperation of a plurality of devices of clutches and external encoders, the operation is simple and convenient, and the problems that the existing CT scanning bed needs the cooperation of a plurality of devices and has a complicated structure are solved.
As further explained, when the bed board needs to move, the main control board 5 detects whether the clutch button 7 is pressed, if the clutch button is pressed, a status signal is received, the bed board cannot move, if the clutch button is not pressed, the motor driver 6 drives the motor 1 to drive the bed board to move, at this time, the motor 1 records the position of the bed board from the encoder 4, and the main control board 5 can read the current position of the bed board through a communication interface or a coding feedback signal (a D2 port); when the bed board is dragged by the manual application pulling force, whether the clutch button 7 is pressed or not is checked by the main control board 5 at the moment, if not, the motor driver 6 sends an enabling signal to the motor 1 and cannot be pushed, when the clutch button 7 is pressed, the main control board 5 sends a disabling signal to the motor driver 6 to the motor 1, the bed board can be dragged at the moment, the motor 1 also rotates along with the bed board dragging process, the motor 1 carries the encoder 4 along with recording the position of the bed board, the main control board 5 can still read the current position of the bed board through the communication interface or the encoding feedback signal, and therefore the current position of the bed board is updated, and the real-time position of the current bed board can be obtained.
In a preferred embodiment, in order to further improve the accuracy of the measurement of the horizontal movement of the bed board during the process of manually pulling the bed board by applying a pulling force, and reduce the error of the encoder degree caused by the braking of the motor 1 itself in the process of moving the motor 1 by the bed board, the control system adopts the motor 1 which is in a dynamic braking state and is in a free movement state after the rotating speed is less than a preset threshold, specifically, the motor 1 is set to be in a dynamic braking state by adjusting the parameters of the motor 1, and is in a free movement state after the rotating speed is less than the preset threshold, for example, a driver and a motor of the a2 series can be adopted, and the driving P1-2 is set: the dynamic braking is executed firstly, and free run is executed after the motor is stopped (the rotating speed of the motor is less than P1-38), and the parameters can ensure that the motor can still be dragged after the motor is disabled and the motor is stopped for a short time.
In the above embodiment, when the control system is powered off, the applied pulling force can drive the bed board to move, and at this time, the motor 1 moves along with the control system, in addition to the above, in a preferred embodiment, the main control board 5 may further include a prompt module (not shown in the figure) for monitoring the status signal in real time, and sending a prompt signal when the status signal is not received, specifically, an indicator light or a visual indication image or the like may be used, that is, it is ensured that whether the clutch button is pressed down or not can be checked in time when the bed board is dragged by applying an external force manually, thereby reducing the problem caused by applying an external force without pressing the clutch button in the above implementation process.
It should be noted that the embodiments of the present invention have been described in terms of preferred embodiments, and not by way of limitation, and that those skilled in the art can make modifications and variations of the embodiments described above without departing from the spirit of the utility model.
Claims (7)
1. A diagnostic bed horizontal motion control system, for acting on a bed plate, comprising:
the motor is driven by a motor driver, and an encoder is arranged on the motor and used for determining the moving distance of the bed plate;
the transmission mechanism is driven by the motor through a speed reducer to drive the bed plate to move;
the main control board is communicated with the motor driver so as to drive the motor to work through the motor driver and obtain the coding feedback of the encoder;
the clutch button is connected with the main control board and used for sending a state signal to the main control board in a starting state;
when the control system works, the main control board does not receive a state signal, namely the clutch button is not started, and sends an instruction to the motor driver, so that the motor driver controls the motor to enable, the bed board is driven to move, a code is returned to the main control board, and the main control board reads the current position of the bed board according to the code feedback;
when the master control board receives a state signal, namely the clutch button is started, an instruction is sent to the motor driver, the motor driver controls the motor to lose energy, a pulling force is applied to drive the bed board to move, the motor moves along with the motor and returns a code to be fed back to the master control board, and the current bed board position is updated by the control board according to the code feedback.
2. The control system of claim 1, comprising:
the encoder adopts an incremental encoder or an absolute value encoder.
3. The control system of claim 2, comprising:
and the encoder adopts an incremental encoder, and the zero returning operation is executed when the control system is started.
4. The control system of claim 1, wherein:
the main control board further comprises a prompt module for monitoring the state signal in real time and sending out a prompt signal when the state signal is not received.
5. The control system of claim 1, comprising:
the control system adopts a motor which is in a dynamic brake state and is in a free moving state after the rotating speed is less than a preset threshold value.
6. The control system of claim 5, comprising:
the dynamic brake is set by adjusting the motor parameters, and the brake can move freely when the rotating speed is less than a preset threshold value.
7. The control system of claim 1, comprising:
when the control system is powered off, the pulling force is applied to drive the bed board to move, and the motor moves along with the bed board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122112459.9U CN215817833U (en) | 2021-09-01 | 2021-09-01 | Horizontal motion control system of diagnostic bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122112459.9U CN215817833U (en) | 2021-09-01 | 2021-09-01 | Horizontal motion control system of diagnostic bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215817833U true CN215817833U (en) | 2022-02-11 |
Family
ID=80155358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122112459.9U Active CN215817833U (en) | 2021-09-01 | 2021-09-01 | Horizontal motion control system of diagnostic bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215817833U (en) |
-
2021
- 2021-09-01 CN CN202122112459.9U patent/CN215817833U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110141365A (en) | Simulate the blood vessel intervention operation auxiliary device remote control system of surgical operation | |
| CN113729961A (en) | Main end operating handle of interventional operation robot | |
| CN108572576B (en) | Man-machine co-driving and unmanned technology and vehicle-mounted external driving robot for testing | |
| CN104972916B (en) | The method that electronic parking brake system is applied in vehicle propulsion system | |
| CN215817833U (en) | Horizontal motion control system of diagnostic bed | |
| CN113765290B (en) | Linear drive device | |
| CN112587241B (en) | Main end guide wire/catheter operating device of vascular intervention surgical robot | |
| CN113729960A (en) | Main end control module of interventional operation robot | |
| CN113274227B (en) | Examination bed power-assisted system and control method thereof | |
| CN200962069Y (en) | Online detection system for back bridge noise quality | |
| CN108403319A (en) | A kind of omnidirectional's electric wheelchair control system based on three-dimensional Hall control stick | |
| CN218885418U (en) | Automobile pedal force detection equipment | |
| CN111904455A (en) | CT scanning bed lifting control system, CT scanning bed and control method | |
| CN212796857U (en) | Wireless remote control device for automatic ore loading operation of train | |
| CN108973667A (en) | A kind of pilotless automobile auxiliary arrangement of clutch and control method | |
| CN1908611A (en) | Online rear axle noise quality detecting system | |
| CN209947135U (en) | Vascular intervention operation training device | |
| CN208946184U (en) | A kind of crusing robot with detection device | |
| CN108538138B (en) | Motion control system for collecting puncture experiment data information and use method thereof | |
| CN112857818A (en) | Accelerator pedal control device and method | |
| CN214965758U (en) | CT scanning bed and push-pull force quality inspection system for same | |
| CN216317670U (en) | Detect servo motor and CT equipment of position of CT bed board | |
| CN112298145A (en) | Electric control hydraulic oil brake device and method | |
| CN214066010U (en) | Frame positioning device of direct drive motor of CT machine | |
| CN114699654A (en) | Control system of accelerator treatment couch and fault judgment method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |