CN208546500U - Hydraulic pressure precise control device in a kind of laboratory soil test - Google Patents
Hydraulic pressure precise control device in a kind of laboratory soil test Download PDFInfo
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- CN208546500U CN208546500U CN201721710838.5U CN201721710838U CN208546500U CN 208546500 U CN208546500 U CN 208546500U CN 201721710838 U CN201721710838 U CN 201721710838U CN 208546500 U CN208546500 U CN 208546500U
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- fixed plate
- lead screw
- control device
- hydraulic pressure
- precise control
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Abstract
The utility model provides hydraulic pressure precise control device in a kind of laboratory soil test, including first fixed plate and second fixed plate fixed by first support bar, second fixed plate is equipped with the high transmission ratio gear and pinion gear of intermeshing connection, pinion gear is placed in the motor reducer in the first fixed plate by being driven axis connection, motor reducer is connected with stepper motor, high transmission ratio gear is equipped with the lead screw being connected through a screw thread with high transmission ratio gear, lead screw both ends are each passed through the first fixed plate and the second fixed plate, one end that lead screw passes through the first fixed plate is equipped with piston, lead screw is equipped with shift(ing) ring close to piston one end, shift(ing) ring outer cover connected the concentric die of bearing connection, and shift(ing) ring and high transmission ratio gear are connected together by concentric die.Hydraulic pressure precise control device in a kind of laboratory soil test of the utility model, increasing can prevent hypertonia, stepper motor torque are excessive to lead to Problem of Failure in the case of speed reducer, improve step motor control precision.
Description
Technical field
The utility model belongs to laboratory soil test field Pressure Control Technology, more particularly, to a kind of laboratory soil test
Middle hydraulic pressure precise control device.
Background technique
The soil body is a kind of pore media material, and the soil body of nature is made of soil particle, pore water, hole gas.It is thus right
The research of soil capability is related to the application and measurement of water pressure in the soil body mostly, and is related to water pressure control and measures to set
Standby, the pressure of existing hydraulic pressure force control apparatus is that screw rod rotation, the pressure that pressurized water is supplied, due to water are driven by stepper motor
Be it is incompressible, cause high pressure (be greater than 2MPa) situation stepper motor minor motion just to have the pressure increase and decrease of tens Pa
Amount, so equipment is unable to satisfy the water pressure under the conditions of high pressure and is precisely controlled.
Utility model content
In view of this, the utility model is directed to hydraulic pressure precise control device in a kind of laboratory soil test, so that its
Water pressure control precision can be improved, while can solve the problems, such as stepper motor high energy consumption when the control of permanent high pressure.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
Hydraulic pressure precise control device in a kind of laboratory soil test, including first fixed plate fixed by first support bar
With the second fixed plate, second fixed plate is equipped with the high transmission ratio gear and pinion gear of intermeshing connection, the small tooth
Wheel is placed in the motor reducer in first fixed plate by being driven axis connection, and the motor reducer is connected with stepper motor
It connects, the high transmission ratio gear is equipped with the lead screw being connected through a screw thread with the high transmission ratio gear, the lead screw both ends point
Not Chuan Guo first fixed plate and second fixed plate, the lead screw pass through first fixed plate one end be equipped with live
Plug, the lead screw are equipped with shift(ing) ring close to described piston one end, and the shift(ing) ring outer cover connected the concentric of bearing connection
Mould, and the shift(ing) ring and the high transmission ratio gear are connected together by the concentric die.
Further, first fixed plate side both ends are respectively equipped with guide rail, and the guide rail end is fixed equipped with guide rail
Plate；
Further, it is equipped with deep groove ball bearing on two guide rails, is fixed with silk on two deep groove ball bearings
Thick stick fixed plate, the lead screw other end are flexibly connected with the lead screw fixed plate；
Further, second fixed plate is equipped with the hydraulic plate connected by second support bar；
Further, the screw pitch mm of the lead screw, and coming unglued on °~° on the screw rod；
Further, the screw pitch of the high transmission ratio gear is consistent with the screw pitch of the pinion gear.
Compared with the existing technology, hydraulic pressure precise control device has in a kind of laboratory soil test described in the utility model
Following advantage:
1. hydraulic pressure precise control device in a kind of laboratory soil test described in the utility model, in the case of increasing speed reducer
It can prevent hypertonia, stepper motor torque are excessive to lead to Problem of Failure, improve step motor control precision, and save energy
Consumption；
2. hydraulic pressure precise control device in a kind of laboratory soil test described in the utility model, it can be achieved that pressure in 2MPa
Being precisely controlled in the section 3MPa；
3. hydraulic pressure precise control device in a kind of laboratory soil test described in the utility model increases high transmission ratio tooth
Wheel is conducive to test due to that can complete hydraulic holding when the emergency events such as motor power-off occur under high-pressure situations
Continue；
4. hydraulic pressure precise control device in a kind of laboratory soil test described in the utility model, have that structure is simple, makes
With convenient, practical feature.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 ties for the whole of hydraulic pressure precise control device in a kind of laboratory soil test described in the utility model embodiment
Structure schematic diagram；
Fig. 2 ties for the part of hydraulic pressure precise control device in a kind of laboratory soil test described in the utility model embodiment
Structure schematic diagram；
Fig. 3 is that hydraulic pressure precise control device is faced in a kind of laboratory soil test described in the utility model embodiment
Figure.
Description of symbols:
The first fixed plate of 1-, the second fixed plate of 2-, 3- first support bar, 4- hydraulic plate, 5- second support bar, 6- lead screw,
7- piston, 8- high transmission ratio gear, 9- pinion gear, 10- motor reducer, 11- stepper motor, 12- guide rail fixed plate, 13- are led
Rail, 14- deep groove ball bearing, 15- lead screw fixed link, 16- concentric die, 17- shift(ing) ring, 18- bearing, 19- transmission shaft.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, Figure 2 and Figure 3, hydraulic pressure precise control device in a kind of laboratory soil test: including passing through first
Strut 3 fixed the first fixed plate 1 and the second fixed plate 2, second fixed plate 2 are equipped with the high transmission of intermeshing connection
Than gear 8 and pinion gear 9, and the screw pitch of the high transmission ratio gear 8 is consistent with the screw pitch of the pinion gear 9, the pinion gear 9
The motor reducer 10 being placed in first fixed plate 1, the motor reducer 10 and stepping electricity are connected by transmission shaft 19
Machine 11 is connected, the setting of motor reducer 10, adjustable corresponding speed ratio, improves equipment precision, energy saving can be with
It prevents hypertonia, 11 torque of stepper motor are excessive from leading to Problem of Failure, improves the control precision of stepper motor 10, the high biography
It is dynamic to be equipped with the lead screw 6 being connected through a screw thread with the high transmission ratio gear 8 than gear 8, the screw pitch 2mm of the lead screw 6, and
Coming unglued on 15 °~16 °, the mobile distance of the lead screw 6 is 0.0002mm on the screw rod 6, has better accuracy,
6 both ends of lead screw are each passed through first fixed plate 1 and second fixed plate 2, and it is solid that the lead screw 6 passes through described first
One end of fixed board 1 is equipped with piston 7, and the lead screw 6 is equipped with shift(ing) ring 17 close to described 7 one end of piston, outside the shift(ing) ring 17
The concentric die 16 that portion's socket is connected by bearing 18, and the concentric die 18 is by the shift(ing) ring 17 and the high transmission ratio gear
8 are connected together.
First fixed plate, the 2 side both ends are respectively equipped with guide rail 13, the guide rail 13, and 13 end of guide rail is equipped with
Guide rail fixed plate 12 is equipped with deep groove ball bearing 14 on two guide rails 13, is fixed on two deep groove ball bearings 14
Lead screw fixed plate 15,6 other end of lead screw are flexibly connected with the lead screw fixed plate 15.
Second fixed plate 2 is equipped with the hydraulic plate 4 connected by second support bar 5.
Stepper motor 11 works, and the power generated is transferred to pinion gear 9, pinion gear after the deceleration of motor reducer 10
9 rotations drive high transmission ratio gear 8 to rotate, and high transmission ratio gear 8 can be under high-pressure situations due to time bursts such as motor power-off
Hydraulic holding, the accuracy of increase whole device operation are carried out when generation, the rotation of high transmission ratio gear 8 drives shift(ing) ring 17 and height
The concentric rotation of ratio gear 8, the two can drive screw rod 6 to be moved forward and backward while rotation, lead screw 6 passes through lead screw fixed plate 15
Movable state is scheduled on guide rail 13 with deep groove ball bearing 14, it is ensured that lead screw 6 is in moving process, and progress is linear motion, together
When due to the screw pitch of lead screw 6 it is small compared with the screw pitch of existing lead screw 6, therefore the mobile distance of lead screw 6 shortens, so that the device is reaching
Under high-pressure situations, adjustment pressure is finer.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or
Person be the utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model
Simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construction
And operation, therefore should not be understood as limiting the present invention.It is only used in addition, belonging to " first ", " second ", " third " etc.
Description is distinguished, and cannot be construed as to imply that or imply relative importance.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. hydraulic pressure precise control device in a kind of laboratory soil test, it is characterised in that: including fixed by first support bar (3)
The first fixed plate (1) and the second fixed plate (2), second fixed plate (2) be equipped with intermeshing connection high transmission ratio
Gear (8) and pinion gear (9), the pinion gear (9) connect the electricity being placed on first fixed plate (1) by transmission shaft (19)
Machine speed reducer (10), the motor reducer (10) are connected with stepper motor (11), and the high transmission ratio gear (8) is equipped with
The lead screw (6) being connected through a screw thread with the high transmission ratio gear (8), it is solid that lead screw (6) both ends are each passed through described first
Fixed board (1) and second fixed plate (2), one end that the lead screw (6) passes through first fixed plate (1) are equipped with piston (7),
The lead screw (6) is equipped with shift(ing) ring (17) close to the piston (7) one end, and shift(ing) ring (17) outer cover connected bearing
(18) concentric die (16) connected, and the concentric die (18) blocks the shift(ing) ring (17) and the high transmission ratio gear (8)
It is connected together.
2. hydraulic pressure precise control device in a kind of laboratory soil test according to claim 1, it is characterised in that: described
One fixed plate (1) side both ends are respectively equipped with guide rail (13), the guide rail (13), and guide rail (13) end is fixed equipped with guide rail
Plate (12).
3. hydraulic pressure precise control device in a kind of laboratory soil test according to claim 2, it is characterised in that: two institutes
It states and is equipped on guide rail (13) deep groove ball bearing (14), be fixed with lead screw fixed plate on two deep groove ball bearings (14)
(15), lead screw (6) other end is flexibly connected with the lead screw fixed plate (15).
4. hydraulic pressure precise control device in a kind of laboratory soil test according to claim 1, it is characterised in that: described
Two fixed plates (2) are equipped with the hydraulic plate (4) connected by second support bar (5).
5. hydraulic pressure precise control device in a kind of laboratory soil test according to claim 1, it is characterised in that: the silk
The screw pitch 2mm of thick stick (6), and coming unglued on 15 °~16 ° on the screw rod (6).
6. hydraulic pressure precise control device in a kind of laboratory soil test according to claim 1, it is characterised in that: the height
The screw pitch of ratio gear (8) is consistent with the screw pitch of the pinion gear (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721710838.5U CN208546500U (en) | 2017-12-11 | 2017-12-11 | Hydraulic pressure precise control device in a kind of laboratory soil test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721710838.5U CN208546500U (en) | 2017-12-11 | 2017-12-11 | Hydraulic pressure precise control device in a kind of laboratory soil test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208546500U true CN208546500U (en) | 2019-02-26 |
Family
ID=65416116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721710838.5U Active CN208546500U (en) | 2017-12-11 | 2017-12-11 | Hydraulic pressure precise control device in a kind of laboratory soil test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208546500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570517A (en) * | 2020-11-26 | 2021-03-30 | 燕山大学 | Large-scale pipe fitting forming accuracy control equipment |
| CN113230563A (en) * | 2021-05-10 | 2021-08-10 | 江苏优尼科工业消防有限公司 | Pressure adjusting device of foam fire extinguisher |
-
2017
- 2017-12-11 CN CN201721710838.5U patent/CN208546500U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570517A (en) * | 2020-11-26 | 2021-03-30 | 燕山大学 | Large-scale pipe fitting forming accuracy control equipment |
| CN113230563A (en) * | 2021-05-10 | 2021-08-10 | 江苏优尼科工业消防有限公司 | Pressure adjusting device of foam fire extinguisher |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 301700 No. 19 Wujing Road, Huangzhuang street, Wuqing District, Tianjin Patentee after: Cubic Tongda (Tianjin) Experimental Instrument Co.,Ltd. Address before: 300000 535-4, 18 Fuyuan Road, development zone, Wuqing District, Tianjin (centralized office area) Patentee before: LIFANG TONGDA INDUSTRIAL (TIANJIN) CO.,LTD. |