CN204028074U - A kind of equipment measuring cement setting time - Google Patents
A kind of equipment measuring cement setting time Download PDFInfo
- Publication number
- CN204028074U CN204028074U CN201420485721.1U CN201420485721U CN204028074U CN 204028074 U CN204028074 U CN 204028074U CN 201420485721 U CN201420485721 U CN 201420485721U CN 204028074 U CN204028074 U CN 204028074U
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- test point
- sliding bar
- equipment
- setting time
- crane
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Abstract
The utility model discloses a kind of equipment measuring cement setting time, described equipment comprises: support (1), universal stage (7), crane (8), sliding bar (2) and sucked type electromagnet (9); Described universal stage and crane are arranged on described support respectively; Described universal stage comprises rotating disc (22) and rotating stepper motor (21); Test point resetting-mechanism (10) is installed in described crane, and in test point resetting-mechanism, is provided with test point (11) and displacement transducer (14); Described sliding bar is arranged on the upper end of described test point, and installs institute's displacement sensors in the side of sliding bar and sliding bar; Described sucked type electromagnet is arranged on the top of described test point resetting-mechanism, and is fixed by a magnet fixed mount (16).The equipment that the utility model provides can imitate manually-operated overall process, easy to operate, measuring accuracy is high.
Description
Technical field
The utility model relates to a kind of sensing equipment of cement performance quality, particularly relates to a kind of equipment measuring cement setting time.
Background technology
Setting time is one of leading indicator of cement quality, defines portland cement presetting period and final setting time in standard GB175-2007 " common portland cement ".Meanwhile, the assay method of GB GB/T1346-2011 cement setting time.Cement setting adopts the certain depth that certain hour is interior, whether test point can sink to sample in die trial to determine.
The mensuration in presetting period: carry out first time mensuration after test specimen maintenance in moisture curing box adds water during 30min.During mensuration, take out under die trial is put into test point, after test point and cement paste surface contact, sink to cement paste test point Vertical Free.If when test point stops sinking or discharging test point 30s, when test point is sink to apart from base plate 4mm ± 1mm, for cement reaches initial set state, repeat said determination, reach initial set state to cement.It is the presetting period of cement that test specimen maintenance in moisture curing box adds water to the time that cement reaches initial set state.
The mensuration of final setting time: after completing presetting period mensuration, moisture curing box maintenance put into by test specimen, measures once every 15min when closing on the final setting time of regulation, when test point sinks to examination body 0.5mm, for cement reaches final set state.It is the final setting time of cement that test specimen maintenance in moisture curing box adds water to the time that cement reaches final set state.
Due to when surveying, this value of the 0.5mm of final set state is difficult to accurately observation, therefore special provision in standard GB/T1346-2011, situation is sunk in order to what accurately observe narrow regions test point, the mensuration of final setting time adopts the special test point that annular attachment is housed, when special test point sinks to examination body 0.5mm, at this moment annular attachment can not be left a trace on examination body, that is to say and does not occur that annular attachment vestige is final set for the last time.Specify in a standard, overturn die trial immediately after the presetting period arrives, whether object is very smooth in order to only starch surface when measuring final set, can accurately observe the annex on final set pin (i.e. special test point) leave a trace simultaneously.
Current domestic industry is the setting time adopting hand Vicat apparatus (accompanying drawing 1 is shown in by this instrument outward appearance and primary structure, and wherein 1 is support, and 2 is sliding bar, and 3 is slack adjuster, and 4 is pointer, and 5 is scale) to measure cement mostly.This is a kind of classic method having more than 100 year history, adopts manual operations, operates once every five minutes or 15 minutes, and the degree of depth that observation test point sinks to from cement paste surface freely falling body judges just, final setting time.
As can be seen from the method for testing of manual Vicat apparatus, this method is time-consuming, effort, and each sample will mensuration one by one, operating personnel need several hours even tens hours ground wait for, observe the arrival of final setting time.And, the accuracy that also affect measurement result different from ability of the skill level due to operating personnel.Thus carry out in the urgent need to automatic analyzer the setting time automatically, accurately measuring cement.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of equipment of easy to operate, mensuration cement setting time that measuring accuracy is higher.
The purpose of this utility model is realized by following technical scheme:
Measure an equipment for cement setting time, this equipment comprises:
Support (1), universal stage (7), crane (8), sliding bar (2) and sucked type electromagnet (9); Described universal stage and crane are arranged on described support respectively;
Described universal stage comprises rotating disc (22) and rotating stepper motor (21);
Test point resetting-mechanism (10) is installed in described crane, and in test point resetting-mechanism, is provided with test point (11) and displacement transducer (14);
Described sliding bar is arranged on the upper end of described test point, and on sliding bar and the side of sliding bar institute displacement sensors is installed;
Described sucked type electromagnet is arranged on the top of described test point resetting-mechanism, and is fixed by a magnet fixed mount (16).
Compared with prior art, one or more embodiment of the present utility model can have the following advantages by tool:
According to national testing standard, can manually-operated overall process be imitated, easy to operate, measuring accuracy is high.
Accompanying drawing explanation
Fig. 1 is hand Vicat apparatus structural representation of the prior art;
Fig. 2 is the device structure schematic diagram measuring cement setting time;
Structural representation when Fig. 3 is test point reset;
Fig. 4 is the structural representation of test point resetting-mechanism;
Fig. 5 is the structural representation of universal stage.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with embodiment and accompanying drawing, the utility model embodiment is described in further detail.
As shown in Figure 2, for measuring the device structure of cement setting time, this structure comprises: support 1, universal stage 7, crane 8, sliding bar 2 and sucked type electromagnet 9; Described universal stage and crane are arranged on described support respectively;
Described universal stage comprises rotating disc 22 and rotating stepper motor 21 (as shown in Figure 5);
Test point resetting-mechanism 10 is installed in described crane, and in test point resetting-mechanism, is provided with test point 11 and displacement transducer 14 (as shown in Figure 3 and Figure 4);
Described sliding bar is arranged on the upper end of described test point, and on sliding bar and the side of sliding bar institute displacement sensors is installed;
Described sucked type electromagnet is arranged on the top of described test point resetting-mechanism, and is fixed by a magnet fixed mount 16, and sucked type electromagnet is used for tightly inhaling sliding bar upper end when test point resets.
Above-mentioned sliding bar is the reset being realized test point by test point resetting-mechanism by turning over turnback.
Above-mentioned support 1 is provided with casing 6;
Above-mentioned rotating disc is provided with glass plate 13 and die trial 12, there is electrical connection sampling end on the rotating pan, be connected with the signal voltage input end of control device respectively, and be connected with given voltage input end by resistance in series, this sampling end obtains signal when metal test mould, cement paste and test point conduct.
The said equipment also comprises stepper motor 18, motor fixing plate 20, lifter plate 19 and test point fixed mount 15;
Described stepper motor is connected with described test point resetting-mechanism by connecting plate for electric motor 17.
Although the embodiment disclosed by the utility model is as above, the embodiment that described content just adopts for the ease of understanding the utility model, and be not used to limit the utility model.Technician in any the utility model art; under the prerequisite not departing from the spirit and scope disclosed by the utility model; any amendment and change can be done what implement in form and in details; but scope of patent protection of the present utility model, the scope that still must define with appending claims is as the criterion.
Claims (3)
1. measure an equipment for cement setting time, it is characterized in that, described equipment comprises: support (1), universal stage (7), crane (8), sliding bar (2) and sucked type electromagnet (9); Described universal stage and crane are arranged on described support respectively;
Described universal stage comprises rotating disc (22) and rotating stepper motor (21);
Test point resetting-mechanism (10) is installed in described crane, and in test point resetting-mechanism, is provided with test point (11) and displacement transducer (14);
Described sliding bar is arranged on the upper end of described test point, and on sliding bar and the side of sliding bar institute displacement sensors is installed;
Described sucked type electromagnet is arranged on the top of described test point resetting-mechanism, and is fixed by a magnet fixed mount (16).
2. the equipment of mensuration cement setting time according to claim 1, is characterized in that,
Described support (1) is provided with casing (6);
Described rotating disc is provided with glass plate (13) and die trial (12).
3. the equipment of mensuration cement setting time according to claim 1, it is characterized in that, described equipment also comprises stepper motor (17), motor fixing plate (20), lifter plate (19) and test point fixed mount (15);
Described stepper motor is connected with described test point resetting-mechanism by connecting plate for electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420485721.1U CN204028074U (en) | 2014-08-26 | 2014-08-26 | A kind of equipment measuring cement setting time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420485721.1U CN204028074U (en) | 2014-08-26 | 2014-08-26 | A kind of equipment measuring cement setting time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204028074U true CN204028074U (en) | 2014-12-17 |
Family
ID=52067916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420485721.1U Withdrawn - After Issue CN204028074U (en) | 2014-08-26 | 2014-08-26 | A kind of equipment measuring cement setting time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204028074U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155212A (en) * | 2014-08-26 | 2014-11-19 | 深圳市太科检测有限公司 | Automatic determining instrument of cement setting time |
| CN104865374A (en) * | 2015-05-13 | 2015-08-26 | 张芳 | Method for measuring cement setting time in cement experiment |
| CN110068522A (en) * | 2019-05-23 | 2019-07-30 | 南京邮电大学通达学院 | A kind of measurement device and method of cement setting time |
-
2014
- 2014-08-26 CN CN201420485721.1U patent/CN204028074U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155212A (en) * | 2014-08-26 | 2014-11-19 | 深圳市太科检测有限公司 | Automatic determining instrument of cement setting time |
| CN104865374A (en) * | 2015-05-13 | 2015-08-26 | 张芳 | Method for measuring cement setting time in cement experiment |
| CN110068522A (en) * | 2019-05-23 | 2019-07-30 | 南京邮电大学通达学院 | A kind of measurement device and method of cement setting time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141217 Effective date of abandoning: 20160907 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |