CN216986398U - Servo motor driven high pressure developments axial compression post structure - Google Patents
Servo motor driven high pressure developments axial compression post structure Download PDFInfo
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- CN216986398U CN216986398U CN202220625258.0U CN202220625258U CN216986398U CN 216986398 U CN216986398 U CN 216986398U CN 202220625258 U CN202220625258 U CN 202220625258U CN 216986398 U CN216986398 U CN 216986398U
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- piston
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Abstract
The utility model discloses a high-pressure dynamic axial compression column structure driven by a servo motor, which relates to the technical field of compression columns and comprises a bottom support, wherein a chromatographic column is fixedly arranged on the bottom support, an upper support is arranged at the upper end of the bottom support, the servo motor is arranged on the left side of the upper support, a driving wheel is arranged at the lower end of the servo motor, a lead screw and a piston are arranged in the middle of the upper support, a base is arranged below the upper support, a threaded sleeve is arranged at the center of the base, a transmission sleeve and a driven wheel are arranged below the threaded sleeve, and a belt is arranged between the driving wheel and the driven wheel. The utility model adopts servo motor drive, screw sleeve and screw rod movement, the lower end of the screw rod is connected with the piston, the piston is provided with the pressure sensor, the state control of the chromatographic column packing process is completed, the whole equipment precision is improved, the controllability of the packing process is improved, the equipment compatibility is improved, the requirements of the packing process of different packing can be met without replacing the chromatographic column, the automation degree is improved, the operation efficiency is improved, and the labor is saved.
Description
Technical Field
The utility model relates to the technical field of compression columns, in particular to a high-pressure dynamic axial compression column structure driven by a servo motor.
Background
The dynamic axial compression column system is one of column packing techniques in the field of preparative chromatography, and can keep good separation effect in column chromatography of various scales, so that the dynamic axial compression column system is widely applied. In order to maintain the uniformity and stability of the packing density, most of the traditional dynamic axial compression columns utilize air pressure or oil pressure to push a piston to compress the packing, the fixed pressure is always kept in the whole elution process, the stability and the uniformity of the packing in a column bed are ensured, and gaps are eliminated. In order to ensure that the filling state of the filling material is controllable, the repeatability of the filling state can be realized even after multiple times of filling, and the pressure and the speed in the motion process of the piston need to be monitored; because the pressure required by the packing with different grain diameters is different, the dynamic axial compression column is divided into high pressure and low pressure. The pneumatically driven form has limited pressure and cannot provide high pressures and therefore cannot be used in high pressure chromatography columns. Although the form of the oil hydraulic cylinder can meet the high pressure requirement, the pressure is easy to float due to the fluctuation of the oil pressure or the air pressure, the pressure precision is not high, and the speed cannot be controlled and adjusted in real time in the motion process. A new structural form is urgently needed, the accurate control of the chromatographic column on the pressure and the parameters of the piston motion process can be met, and a compression column structure is provided.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a high-pressure dynamic axial compression column structure driven by a servo motor, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a servo motor driven high pressure developments axial compression column structure, includes the bottom support, and the centre fixed mounting of bottom support has the chromatographic column, and the upper end of bottom support is equipped with the upper portion support, the left side fixed mounting of upper portion support has servo motor, the action wheel is installed to servo motor's lower extreme, the centre of upper portion support is equipped with the lead screw and the piston is installed to the lower extreme, the below fixed mounting of upper portion support has the base, the center department of base is equipped with the thread bush, the below fixed mounting of thread bush has the transmission cover and follows the driving wheel, the action wheel and is connected with the belt from the driving wheel between.
Further: guide posts are arranged on two sides of the lead screw, the upper end and the lower end of each guide post are fixedly mounted on the upper support, a guide sliding block is arranged at the uppermost end of the lead screw, a ball head is movably connected between the lead screw and the guide sliding block, and linear bearings are arranged at contact positions of two sides of the guide sliding block, which are penetrated on the guide posts.
Further: a piston support is arranged between the lower end of the lead screw and the piston, a pressure sensor is arranged on the piston support, the lead screw penetrates through the threaded sleeve, the transmission sleeve and the driven wheel, bearings are arranged between the transmission sleeve and the base, and the number of the bearings is two.
Preferably: the bottom support and the upper support are fixedly connected through the stand column, and a handle is fixedly mounted at the upper end of the rear portion of the bottom support.
Preferably: the bottom support is wide at the bottom and narrow at the top, and universal wheels are fixedly installed at four corners at the lowest end of the bottom support.
Compared with the prior art, the utility model has the beneficial effects that: the utility model adopts a servo motor for driving, adopts a threaded sleeve and a lead screw for up-and-down movement, the lower end of the lead screw is connected with a piston of a chromatographic column, the servo motor drives the piston to move integrally, a pressure sensor is arranged on the piston, the pressure in the motion process of the piston is monitored in real time and fed back to a controller, the action of the motor is controlled, the accurate control of the pressure, the displacement and the speed in the motion process is realized, the state control of the filling process of the chromatographic column is completed, the accuracy of the whole equipment is improved, the controllability of the filling process is improved, the compatibility of the equipment is improved, the filling process requirements of different fillers can be met without replacing the chromatographic column, the automation degree is improved, the operation efficiency is improved, and the labor is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic sectional view A-A;
FIG. 4 is a top view of the present invention;
fig. 5 is an enlarged schematic view at B.
In the figure: 1. the device comprises a bottom support, 2, a chromatographic column, 3, a universal wheel, 4, a stand column, 5, an upper support, 6, a servo motor, 7, a guide column, 8, a guide sliding block, 9, a lead screw, 10, a handle, 11, a driving wheel, 12, a belt, 13, a piston, 14, a piston support, 15, a driven wheel, 16, a transmission sleeve, 17, a threaded sleeve, 18, a base, 19 and a bearing.
Detailed Description
The present invention will be described below based on embodiments with reference to the attached drawings in the embodiments of the present invention, but it should be noted that the present invention is not limited to the embodiments, and some specific details are described in detail in the following detailed description of the present invention, however, those skilled in the art can fully understand the present invention for the portions not described in detail.
Furthermore, those skilled in the art will appreciate that the drawings are provided solely for the purposes of illustrating the utility model, features and advantages thereof, and are not necessarily drawn to scale.
Also, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the meaning of "includes but is not limited to".
Referring to fig. 1-5, the present invention provides a technical solution: including bottom support 1, the middle fixed mounting of bottom support 1 has chromatographic column 2, and the upper end of bottom support 1 is equipped with upper portion support 5, the left side fixed mounting of upper portion support 5 has servo motor 6, action wheel 11 is installed to servo motor 6's lower extreme, the centre of upper portion support 5 is equipped with lead screw 9 and installs piston 13 bottom, the below fixed mounting of upper portion support 5 has base 18, the center department of base 18 is equipped with thread bush 17, the below fixed mounting of thread bush 17 has transmission sleeve 16 and follows driving wheel 15, action wheel 11 and follow driving wheel 15 between be connected with belt 12.
Guide posts 7 are arranged on two sides of the lead screw 9, the upper end and the lower end of each guide post 7 are fixedly mounted on the upper support 5, a guide sliding block 8 is arranged at the uppermost end of the lead screw 9, a ball head is movably connected between the lead screw 9 and the guide sliding block 8, and linear bearings are arranged at contact positions of two sides of the guide sliding block 8, which are penetrated on the guide posts 7.
A piston bracket 14 is arranged between the lower end of the lead screw 9 and the piston 13, the lead screw 9 penetrates through a threaded sleeve 17, a transmission sleeve 16 and a driven wheel 15, a bearing 19 is arranged between the transmission sleeve 16 and a base 18, and the number of the bearings 19 is two.
The bottom support 1 and the upper support 5 are fixedly connected through a stand column 4, and a handle 10 is fixedly mounted at the upper end of the rear portion of the bottom support 1.
The bottom support 1 is wide at the bottom and narrow at the top, and universal wheels 3 are fixedly installed at four corners of the lowest end of the bottom support 1.
When the device is used, the use is also very convenient and simple, materials are placed in the chromatographic column 2, then the servo motor 6 is started to drive the screw rod 9 and the piston 13 to move downwards through the belt 12 to be compressed, the pressing force is fed back through the pressure sensor arranged on the piston support 14, the overload or insufficient pressure is prevented, the whole device is high in mobility, and the most important is the accurate control and operability of the pressure.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a servo motor driven high pressure developments axial compression post structure, includes bottom sprag (1), and the centre fixed mounting of bottom sprag (1) has chromatographic column (2), its characterized in that: the upper end of bottom support (1) is equipped with upper portion support (5), the left side fixed mounting of upper portion support (5) has servo motor (6), action wheel (11) are installed to the lower extreme of servo motor (6), the centre of upper portion support (5) is equipped with lead screw (9) and piston (13) are installed to the lower extreme, the below fixed mounting of upper portion support (5) has base (18), the center department of base (18) is equipped with thread bush (17), the below fixed mounting of thread bush (17) has transmission sleeve (16) and follows driving wheel (15), be connected with belt (12) between action wheel (11) and the follow driving wheel (15).
2. A servo motor driven high pressure dynamic axial compression column structure as claimed in claim 1, wherein: guide posts (7) are arranged on two sides of the lead screw (9), the upper end and the lower end of each guide post (7) are fixedly mounted on the upper portion support (5), a guide sliding block (8) is arranged at the uppermost end of the lead screw (9), a ball head is movably connected between the lead screw (9) and the guide sliding block (8), and linear bearings are arranged at contact positions of the two sides of the guide sliding block (8) which are penetrated on the guide posts (7).
3. A servo motor driven high pressure dynamic axial compression column structure as claimed in claim 2, wherein: be equipped with piston support (14) between lower extreme and piston (13) of lead screw (9) to lead screw (9) pass thread bush (17), driving sleeve (16) and follow driving wheel (15), be equipped with bearing (19) between driving sleeve (16) and base (18), and bearing (19) are located the inside of base (18) and count two from top to bottom.
4. A servo motor driven high pressure dynamic axial compression column structure as claimed in claim 1, wherein: the bottom support (1) and the upper support (5) are fixedly connected through a stand column (4), and a handle (10) is fixedly mounted at the upper end of the rear portion of the bottom support (1).
5. A servo motor driven high pressure dynamic axial compression column structure as claimed in claim 1, wherein: the bottom support (1) is wide at the bottom and narrow at the top, and universal wheels (3) are fixedly installed at four corners of the lowest end of the bottom support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220625258.0U CN216986398U (en) | 2022-03-22 | 2022-03-22 | Servo motor driven high pressure developments axial compression post structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220625258.0U CN216986398U (en) | 2022-03-22 | 2022-03-22 | Servo motor driven high pressure developments axial compression post structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216986398U true CN216986398U (en) | 2022-07-19 |
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ID=82370730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220625258.0U Active CN216986398U (en) | 2022-03-22 | 2022-03-22 | Servo motor driven high pressure developments axial compression post structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216986398U (en) |
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2022
- 2022-03-22 CN CN202220625258.0U patent/CN216986398U/en active Active
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