CN212340924U

CN212340924U - Vicat instrument

Info

Publication number: CN212340924U
Application number: CN202021878507.4U
Authority: CN
Inventors: 浦军; 刘磊
Original assignee: Yuyao Sme Electric Technology Co ltd
Current assignee: Yuyao Sme Electric Technology Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-01-12
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses a Vicat instrument, which comprises a host, wherein a bracket is fixed at the top of the host, a lead screw which is longitudinally arranged and a motor which is used for driving the lead screw to rotate are arranged on the bracket, a lifting platform which is matched with the lead screw is arranged on the lead screw, a machine head is fixed at the front end of the lifting platform, a displacement sensor which is longitudinally arranged is arranged at the front end of the machine head, and a test needle or a test rod is arranged at the lower end of the displacement sensor; the displacement sensor comprises a sensor shell fixed at the front end of the machine head, a sensor inductor longitudinally and slidably arranged in the sensor shell and an inductor coupler fixed at the lower end of the sensor inductor, a test needle or a test rod is arranged at the lower end of the inductor coupler, and a limiting mechanism used for connecting the sensor inductor to control the sensor inductor to freely slide down is arranged on the machine head. The automatic thickness measuring device can automatically measure standard consistency, initial setting time and final setting time, is convenient to use, saves time and labor, and improves the detection efficiency.

Description

Vicat instrument

Technical Field

The utility model relates to a vicat appearance.

Background

The Vicat instrument is a kind of instrument for detecting cement and concrete industry, and is mainly used for detecting the water requirement of standard consistency and setting time of cement paste. The prior art is mainly characterized in that a manual Vicat instrument is adopted, manual operation and manual observation are needed, and the use is troublesome.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, the present invention is directed to: provides a convenient use Vicat instrument.

The technical solution of the utility model is that: the Vicat instrument comprises a host, wherein a bracket is fixed at the top of the host, a lead screw which is longitudinally arranged and a motor for driving the lead screw to rotate are arranged on the bracket, a lifting table which is matched with the lead screw is arranged on the lead screw, a machine head is fixed at the front end of the lifting table, a displacement sensor which is longitudinally arranged is arranged at the front end of the machine head, and a test needle or a test rod is arranged at the lower end of the displacement sensor;

the displacement sensor comprises a sensor shell fixed at the front end of the machine head, a sensor inductor longitudinally and slidably arranged in the sensor shell and an inductor coupler fixed at the lower end of the sensor inductor, a test needle or a test rod is arranged at the lower end of the inductor coupler, and a limiting mechanism used for connecting the sensor inductor to control the sensor inductor to freely slide down is arranged on the machine head.

Furthermore, the rear end of the lifting platform is provided with a sliding table, the support is provided with a sliding groove which is longitudinally arranged, and the sliding table is accommodated in the sliding groove and is in sliding fit with the sliding groove.

Furthermore, stop gear includes electro-magnet and bolt, and the aircraft nose lower extreme is fixed with a mount, and the electro-magnet is fixed on the mount, and the bolt is fixed at the electro-magnet front end telescopically around can, and the bolt is used for locking the sensor inductor.

Furthermore, the electromagnet is a push-pull electromagnet

Furthermore, an inwards concave annular groove is formed in the outer wall of the sensor inductor, and the front end of the bolt is clamped into the groove, so that the sensor inductor is placed at the front end of the bolt.

Furthermore, the front end of the bolt is provided with an arc-shaped slot.

Further, the base that is located support the place ahead is put at the top of host computer, is used for placing examination mould and glass reference plate on the base.

Furthermore, a touch screen is arranged at the front end of the host.

Use the utility model provides a vicat appearance, its beneficial effect is: the automatic thickness measuring device can automatically measure standard consistency, initial setting time and final setting time, is convenient to use, saves time and labor, and improves the detection efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the present invention after the host, the base, the test mold and the glass reference plate are removed;

FIG. 3 is a schematic side view of the present invention with the host, the base, the test mold and the glass reference plate removed;

FIG. 4 is another schematic side view of the present invention with the host, the base, the test mold and the glass reference plate removed;

fig. 5 is an installation schematic diagram of the plug and the sensor inductor of the present invention.

Shown in the figure: the device comprises a main machine 1, a support 2, a sliding chute 21, a lead screw 3, a motor 4, a lifting table 5, a sliding table 51, a machine head 6, a displacement sensor 7, a sensor shell 71, a sensor inductor 72, a groove 721, an inductor coupler 73, a test needle 8, an electromagnet 9, a bolt 10, a slot 101, a fixing frame 11, a base 12, a test mold 13, a glass reference plate 14, a touch screen 15, a protective cover 16 and a test rod 17.

Detailed Description

For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting characteristic description is now performed by combining the drawings of the present invention:

the first embodiment is as follows: as shown in fig. 1-5, the vicat instrument comprises a main machine 1, a support 2 is fixed on the top of the main machine 1, a screw rod 3 which is longitudinally arranged and a motor 4 which is used for driving the screw rod 3 to rotate are installed on the support 2, a lifting table 5 which is matched with the screw rod 3 is installed on the screw rod 3, a machine head 6 is fixed at the front end of the lifting table 5, a protective cover 16 is covered outside the machine head 6, a displacement sensor 7 which is longitudinally arranged is installed at the front end of the machine head 6, and a test needle 8 or a test rod 17 is installed at the lower end of the displacement sensor 7;

the displacement sensor 7 comprises a sensor shell 71 fixed at the front end of the machine head 6, a sensor inductor 72 longitudinally slidably arranged in the sensor shell 71 and an inductor coupler 73 fixed at the lower end of the sensor inductor 72, a test needle 8 or a test rod 17 is installed at the lower end of the inductor coupler 73, the test needle 8 can be detachably connected with the lower end of the inductor coupler 73 in a clamping or threaded connection mode, and a limiting mechanism used for connecting the sensor inductor 72 to control the sensor inductor 72 to freely slide downwards is installed on the machine head 6.

As shown in fig. 2, in order to facilitate the up-and-down movement of the lifting platform 5, the rear end of the lifting platform 5 is provided with a sliding table 51, the bracket 2 is provided with a sliding groove 21 arranged longitudinally, and the sliding table 51 is accommodated in the sliding groove 21 and is in sliding fit with the sliding groove 21. The lifting platform 5 plays a role of a screw rod nut, the motor 4 drives the screw rod 3 to rotate forward and backward, so that the lifting platform 5 can move up and down, the machine head 6 is driven to move after the lifting platform 5 moves, and the machine head 6 drives the displacement sensor 7 to move.

As shown in fig. 2 and 5, the limiting mechanism includes an electromagnet 9 and a latch 10, a fixing frame 11 is fixed at the lower end of the handpiece 6, the electromagnet 9 is a push-pull electromagnet, the electromagnet 9 is fixed on the fixing frame 11, the latch 10 is telescopically fixed at the front end of the electromagnet 9 in a front-back direction, and the latch 10 is used for locking the sensor inductor 72 to control the sensor inductor 72 to freely fall. The outer wall of the sensor inductor 72 is provided with an inward concave annular groove 721, the front end of the bolt 10 is clamped in the groove 721, so that the sensor inductor 72 is placed at the front end of the bolt 10, that is, the sensor inductor 72 can be hung on the handpiece 6 through the bolt 10, the sensor inductor 72 can not fall freely through the bolt 10, and after the bolt 10 is separated from the sensor inductor 72, the sensor inductor 72 can fall freely.

As shown in fig. 5, in order to facilitate the connection of the plug 10 to the sensor body 72, the front end of the plug 10 has an arc-shaped slot 101, and the shape of the slot 101 matches the shape of the annular groove 721.

As shown in fig. 1, a base 12 is placed on the top of the main body 1 in front of the support 2, and a test mold 13 and a glass reference plate 14 are placed on the base 12.

As shown in fig. 1, a touch screen 15 is provided at the front end of the main body 1. The host 1 has data storage and transmission functions, and a USB interface (not shown) may be provided in the host 1 to transmit data.

As shown in FIGS. 3 and 4, FIG. 3 uses a test needle 8, FIG. 4 uses a test stick 17, FIG. 4 uses the test stick 17 when the standard consistency measurement is performed, and FIG. 3 uses the test needle 8 when the initial setting time measurement and the final setting time measurement are performed.

The use method of the Vicat instrument comprises the following use steps:

(1) standard consistency determination comprising:

(11) a glass reference plate 14 is placed on a base 12, a motor 4 drives a machine head 6 to descend, a test rod 17 is connected with a sensor inductor 72 at the moment, the sensor inductor 72 is hung on the machine head 6 through a bolt 10, the test rod 17 descends along with the machine head 6, after the test rod 17 contacts the glass reference plate 14, the sensor inductor 72 stops descending, the machine head 6 continues descending, the bolt 10 slides downwards in a groove 721 of the sensor inductor 72, the host 1 acquires the change of the value of a displacement sensor 7 at the moment, the position at the moment is judged to be a reference position, then the machine head 6 is automatically lifted, and the standard consistency reference position is automatically calibrated;

(12) placing a test mold 13 arranged on a glass reference plate 14 on a base 12, driving a machine head 6 to descend by a motor 4, enabling a test rod 17 to descend along with the machine head 6, enabling the test rod 17 to descend to the height position of the upper surface of the test mold 13 and stop, attracting by an electromagnet 9, driving a bolt 10 to move backwards, enabling a sensor inductor 72 to automatically descend after being separated from the bolt 10, enabling the test rod 17 to sink into clean slurry of the test mold 13, acquiring a displacement change value when the test rod 17 stops sinking or releases the test rod 1730s by a displacement sensor 7, taking the clean slurry of the test rod 17 sinking into the clean slurry and 146mm +/-1 mm away from the glass reference plate as the clean slurry of the standard consistency, and enabling the mixing water quantity of the clean slurry to be the water quantity of the standard consistency;

(13) the machine head 6 drives the bolt 10 to move to the upper edge of the groove 721 of the sensor inductor 72, the electromagnet 9 is released, the bolt 10 is driven to be inserted into the groove 721 of the sensor inductor 72 forwards, and the machine head 6 drives the displacement sensor 7 and the test rod 17 to move upwards;

(2) initial setting time determination comprising:

(21) firstly, a test rod 17 used for measuring the standard consistency is taken down, a test needle 8 used for measuring the initial setting time is replaced, a glass reference plate 14 is placed on a base 12, a machine head 6 is driven by a motor 4 to descend, the test needle 8 descends along with the machine head 6, after the test needle 8 contacts the glass reference plate 14, a sensor inductor 72 stops descending, the machine head 6 continues descending, a bolt 10 slides downwards in a groove 721 of the sensor inductor 72, at the moment, a host machine 1 acquires the change of the numerical value of a displacement sensor 7, the position at the moment is judged to be a reference position, then the machine head 6 is automatically lifted, and the reference position measured by the initial setting time is automatically calibrated;

(22) placing a maintained test mold 13 which is placed on a glass reference plate 14 on a base 12, driving a machine head 6 to descend by a motor 4, enabling a test needle 8 to descend along with the machine head 6, enabling the test needle 8 to descend to the height position of the upper surface of the test mold 13 and stop, enabling an electromagnet 9 to be attracted and driving a bolt 10 to move backwards, enabling a sensor inductor 72 to automatically descend after being separated from the bolt 10, enabling the test needle 8 to sink into clean slurry of the test mold 13, enabling a displacement sensor 7 to acquire displacement change values when the test needle 8 stops sinking or releases the test needle 830s, and enabling the time when the test needle 8 sinks to be 4mm +/-1 mm away from a bottom plate to be the initial setting time of cement;

(23) the machine head 6 drives the bolt 10 to move to the upper edge of the groove 721 of the sensor inductor 72, the electromagnet 9 is released, the bolt 10 is driven to be inserted into the groove 721 of the sensor inductor 72 forwards, and the machine head 6 drives the displacement sensor 7 and the test needle 8 to move upwards;

(3) final set time determination comprising:

(31) the other side of the test mold 13 is also covered with a glass reference plate 14, the test mold 13 and the glass reference plate are taken down and turned for 180 degrees, then the test mold is placed on the base 12, the upper plane of the glass reference plate 14 on the test mold 13 is used as a reference surface calibration position, the motor 4 drives the machine head 6 to descend, the test needle 8 descends along with the machine head 6, after the test needle 8 contacts the glass reference plate 14 on the test mold 13, the sensor inductor 72 stops descending, the machine head 6 continues descending, the plug pin 10 slides downwards in the groove 721 of the sensor inductor 72, at the moment, the host 1 collects the change of the number value of the displacement sensor 7, the position at the moment is judged as a reference position, then the machine head 6 is automatically lifted, and the reference position measured by the final setting time is automatically calibrated;

(32) the glass reference plate 14 on the test mold 13 is taken away, the motor 4 drives the machine head 6 to descend, the test needle 8 descends along with the machine head 6, the thickness distance of the glass reference plate 14 on the test mold 13 is compensated when the test needle 8 descends, namely the machine head 6 drives the test needle 8 to descend to the height position of the upper surface of the test mold 13 and stop, the electromagnet 9 is attracted to drive the bolt 10 to move backwards, the sensor inductor 72 automatically descends after being separated from the bolt 10, the test needle 8 descends simultaneously, and whether the displacement change value of the test needle 8 at the moment is smaller than 0.5mm is measured through the displacement sensor 7 to judge whether the test mold 13 reaches a final set state or not.

The test needles 8 used in the steps (2) and (3) are the same. Compare in the examination needle of prior art vicat appearance, prior art vicat appearance need adopt a examination pole and two differences examination needles, the utility model discloses only need a examination pole 17 and an examination needle 8 can, saved the step of changing an examination needle, adopted step (3) back promptly, the displacement variation value through 1 record examination needle 8 of host computer just can be judged automatically whether examination mould 13 reaches final setting state, and need not go with the naked eye to observe, and it is more convenient to use.

Example two: the difference between the second embodiment and the first embodiment is that: the electromagnet 9 is replaced by an air cylinder (not shown), a piston rod of the air cylinder is connected with a bolt 10, and the bolt 10 moves back and forth through the expansion of the air cylinder.

It is to be understood that the foregoing is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, which is defined by the following claims and drawings.

Claims

1. The Vicat appearance, its characterized in that: the test bed comprises a host, wherein a bracket is fixed at the top of the host, a lead screw which is longitudinally arranged and a motor for driving the lead screw to rotate are arranged on the bracket, a lifting table which is matched with the lead screw is arranged on the lead screw, a machine head is fixed at the front end of the lifting table, a displacement sensor which is longitudinally arranged is arranged at the front end of the machine head, and a test needle or a test rod is arranged at the lower end of the displacement sensor;

2. The vicat instrument of claim 1, wherein: the rear end of the lifting platform is provided with a sliding table, the bracket is provided with a sliding groove which is longitudinally arranged, and the sliding table is accommodated in the sliding groove and is in sliding fit with the sliding groove.

3. The vicat instrument of claim 1, wherein: the limiting mechanism comprises an electromagnet and a bolt, a fixing frame is fixed at the lower end of the machine head, the electromagnet is fixed on the fixing frame, the bolt is fixed at the front end of the electromagnet in a front-back telescopic mode, and the bolt is used for locking the sensor inductor.

4. The vicat instrument of claim 3, wherein: the outer wall of the sensor inductor is provided with an inwards concave groove, and the front end of the bolt is clamped into the groove, so that the sensor inductor is placed at the front end of the bolt.

5. The Vicat apparatus according to claim 4, wherein: the front end of the bolt is provided with an arc-shaped slot.

6. The Vicat apparatus according to claim 5, wherein: the base that is located support the place ahead is put at the top of host computer, is used for placing examination mould and glass benchmark board on the base.

7. The vicat instrument of claim 1, wherein: the front end of the host is provided with a touch screen.