CN201828464U - Pressure testing machine - Google Patents
Pressure testing machine Download PDFInfo
- Publication number
- CN201828464U CN201828464U CN201020581630XU CN201020581630U CN201828464U CN 201828464 U CN201828464 U CN 201828464U CN 201020581630X U CN201020581630X U CN 201020581630XU CN 201020581630 U CN201020581630 U CN 201020581630U CN 201828464 U CN201828464 U CN 201828464U
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- ball screw
- fixed
- pressing plate
- testing machine
- power device
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Abstract
The utility model discloses a pressure testing machine which comprises a base. Four stand columns are fixed on the base; cross beams are fixed on the upper ends of the stand columns; an upper pressing plate is fixed on the cross beams; a pressure sensor is arranged on the upper pressing plate; a power device is arranged in the base; a lower pressing plate is fixed on the power device; the power device comprises a step motor, a decelerator and a ball screw pair; the step motor is connected with the decelerator in a transmission manner through a synchronous belt; the decelerator is connected with the ball screw pair in a transmission manner; the ball screw pair comprises a ball screw rod and a thread sleeve matched with the ball screw rod; the ball screw rod is connected with the decelerator in a transmission manner; and the lower pressing plate is fixed on the thread sleeve. By the matching between the step motor and the ball screw pair, the power device replaces the existing hydraulic power device; during the operation, the load between the upper pressing plate and the lower pressing plate is more stable and the problems such as oil leak, loud noise and the like of a hydraulic system are prevented in the using process. At the same time, the null drift of the read data is smaller and more stable by using a load sensor.
Description
Technical field
The utility model relates to a kind of testing machine, particularly relates to a kind of pressure testing machine that concrete, mortar or cement briquette is carried out pressure test.
Background technology
In the engineering construction processes such as existing bridge, need a large amount of pressure tests is carried out in concrete test block, mortar or cement briquette etc.Its pressure test is undertaken by pressure testing machine usually.Existing pressure testing machine generally includes support, be fixed with four root posts on the described support, the upper fixed of described column has top board, be provided with propulsion system in the described support, described propulsion system link to each other with lower platen, during test test block are placed on the lower platen, start on the propulsion system drive lower platen to push up until pushing up top board, test block between upper and lower pressing plate, and is read the pressure test data by pressure transducer by pressure holding.The propulsion system of existing pressure testing machine generally include oil pump, hydraulic mechanism etc.Adopt the pressure testing machine of this propulsion system form, in when work, because the load instability of the birth defect of hydraulic mechanism when having determined that it loads, and phenomenons such as leakage of oil in use also may appear in hydraulic mechanism, need periodic replacement O-ring seal etc.Simultaneously, oil pump work meeting produces bigger noise, has influenced working environment.
The utility model content
For overcoming above-mentioned defective, the utility model aims to provide a kind of pressure testing machine, and it is stable that it has loaded load, safe in utilization, cleaning, convenient, characteristics such as noise is little.
For achieving the above object, the technical solution adopted in the utility model is: a kind of pressure testing machine, comprise pedestal, be fixed with four root posts on described its seat, the upper end of described column is fixed with crossbeam, be fixed with top board on the described crossbeam, described top board is provided with pressure transducer, be provided with propulsion system in the described pedestal, be fixed with lower platen on the described propulsion system, described propulsion system comprise stepper motor or AC servo motor, reductor and ball screw assembly, are in transmission connection by synchronous band between described stepper motor and the reductor, and described reductor and ball screw assembly, are in transmission connection.
Described ball screw assembly, comprises ball screw and the swivel nut that is mated, and described ball screw and reductor are in transmission connection, and are fixed with lower platen on the described swivel nut.
Described pressure transducer is a load sensor.
Adopted pressure testing machine of the present utility model, because its propulsion system cooperate ball screw assembly, to replace existing fluid pressure type propulsion system by stepper motor or AC servo motor, when operation, load between the upper and lower pressing plate is more stable, has also avoided problems such as hydraulic system leakage of oil, noise in use is big simultaneously.Simultaneously, adopt load sensor, make the reading of data drift littler, more stable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: the 1-pedestal, the 2-column, the 3-crossbeam, the 4-top board, the 5-pressure transducer, the 6-propulsion system, the 7-lower platen, 11-stepper motor or AC servo motor, the 12-reductor, the 13-ball screw assembly,, 14-is with synchronously, 15-ball screw, 16-swivel nut.
Embodiment
As shown in Figure 1, the utility model discloses a kind of pressure testing machine, comprise pedestal 1, be fixed with four root posts 2 on described its seat 1, the upper end of described column 2 is fixed with crossbeam 3, be fixed with top board 4 on the described crossbeam 3, described top board 4 is provided with pressure transducer 5, is provided with propulsion system 6 in the described pedestal 1, is fixed with lower platen 7 on the described propulsion system 6, the position of described lower platen 7 should be under top board 4, described propulsion system 6 can drive lower platen 7 and rise, and during operation, test block is placed on the lower platen 7, when lower platen 7 rises, test block by pressure holding between top board 4 and lower platen 7.In sum, with existing pressure testing machine basically identical.
Innovative point of the present utility model is that mainly described propulsion system 6 comprise stepper motor 11, reductor 12 and ball screw assembly, 13, by being with 14 to be in transmission connection synchronously, described reductor 12 is in transmission connection with ball screw assembly, 13 between described stepper motor 11 and the reductor 12.Described ball screw assembly, 13 comprises ball screw 15 and the swivel nut 16 that is mated, and described ball screw 15 is in transmission connection with reductor 12, is fixed with lower platen 7 on the described swivel nut 16.During operation, drive reductor 12 by stepper motor or AC servo motor 11, and then drive ball screw 15 rotates, when ball screw 15 positive and negative rotations, can drive swivel nut 16 axially moving up and down along column 2, make lower platen 7 axially the moving up and down that is fixed on the swivel nut 16 along column 2, thereby realize lower platen 7 moving up and down to top board 4 directions, when test block is lived by top board 4 and lower platen 7 pressure holdings, because stepper motor or AC servo motor 11, reductor 12 has the control accuracy height with the propulsion system 6 that ball screw assembly, 13 is formed, characteristics such as sound shadow speed is fast make the test result of pressure testing machine more accurate.
In addition, pressure transducer 5 of the present utility model can be load sensor.The data drift of load sensor is littler more stable, modular design, and a tractor serves several purposes reduces use cost.And the upgrading of laboratory equipment accuracy class is provided convenience after can be.
Claims (3)
1. pressure testing machine, comprise pedestal (1), be fixed with four root posts (2) on described its seat (1), the upper end of described column (2) is fixed with crossbeam (3), be fixed with top board (4) on the described crossbeam (3), described top board (4) is provided with pressure transducer (5), be provided with propulsion system (6) in the described pedestal (1), be fixed with lower platen (7) on the described propulsion system (6), it is characterized in that described propulsion system (6) comprise stepper motor (11), reductor (12) and ball screw assembly, (13), by being with (14) to be in transmission connection synchronously, described reductor (12) is in transmission connection with ball screw assembly, (13) between described stepper motor (11) and the reductor (12).
2. pressure testing machine according to claim 1, it is characterized in that the swivel nut (16) that described ball screw assembly, (13) comprises ball screw (15) and is mated, described ball screw (15) is in transmission connection with reductor (12), is fixed with lower platen (7) on the described swivel nut (16).
3. pressure testing machine according to claim 1 is characterized in that described pressure transducer (5) is a load sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020581630XU CN201828464U (en) | 2010-10-28 | 2010-10-28 | Pressure testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020581630XU CN201828464U (en) | 2010-10-28 | 2010-10-28 | Pressure testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201828464U true CN201828464U (en) | 2011-05-11 |
Family
ID=43966990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020581630XU Expired - Fee Related CN201828464U (en) | 2010-10-28 | 2010-10-28 | Pressure testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201828464U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879273A (en) * | 2012-10-09 | 2013-01-16 | 中天科技精密材料有限公司 | Measuring device and measuring method for loose degree of powder bar |
| CN106124268A (en) * | 2016-07-03 | 2016-11-16 | 湖南科技大学 | Similarity simulation experiment test block prepressing device and the method making experiment test block with it |
-
2010
- 2010-10-28 CN CN201020581630XU patent/CN201828464U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879273A (en) * | 2012-10-09 | 2013-01-16 | 中天科技精密材料有限公司 | Measuring device and measuring method for loose degree of powder bar |
| CN102879273B (en) * | 2012-10-09 | 2015-02-04 | 中天科技精密材料有限公司 | Measuring device and measuring method for loose degree of powder bar |
| CN106124268A (en) * | 2016-07-03 | 2016-11-16 | 湖南科技大学 | Similarity simulation experiment test block prepressing device and the method making experiment test block with it |
| CN106124268B (en) * | 2016-07-03 | 2019-04-05 | 湖南科技大学 | A method of experiment test block is made with similarity simulation experiment test block prepressing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20141028 |
|
| EXPY | Termination of patent right or utility model |