CN211190247U

CN211190247U - Charpy pendulum mass impact sample low temperature instrument

Info

Publication number: CN211190247U
Application number: CN201922130562.9U
Authority: CN
Inventors: 刘建宇; 刘琳; 谢世军; 谢军; 陈永胜
Original assignee: JINAN LIANGONG TESTING TECHNOLOGY CO LTD
Current assignee: JINAN LIANGONG TESTING TECHNOLOGY CO LTD
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-08-07
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a summer is than pendulum impact specimen low temperature appearance. It includes casing, freezing groove, is used for giving the refrigerated refrigerating unit in freezing groove, characterized by: refrigerating unit sets up the lower part at the casing, the freezing groove sets up the upper portion at refrigerating unit, be provided with the capping on the upper portion of freezing groove, be provided with temperature sensor on the capping, elevating gear, the agitator motor of sub-unit connection agitator, elevating gear includes the fixing base, step motor, the lead screw connecting plate, the lead screw, the slider of being connected with the lead screw cooperation, the lift connecting rod, the vertical fixing of fixing base is on the capping, the lead screw connecting plate is connected with the fixing base, step motor installs on lead screw connecting plate upper portion, the vertical setting of lead screw is on the lead screw connecting plate, step motor's output shaft passes through shaft coupling and lead screw connection, the slider passes through the lift connection piece and is connected with the lift connecting rod. The utility model discloses small, convenient operation, control accuracy is high, and once freezing sample volume is big.

Description

Charpy pendulum mass impact sample low temperature instrument

Technical Field

The utility model relates to a cryoscope is a complete set and is applicable to summer than pendulum impact tester's cryoscope, belongs to testing machine technical field.

Background

When the Charpy pendulum impact test has temperature requirements, a sample needs to be placed in a low temperature instrument for freezing, if a freezing groove is too deep, the lower sample cannot be seen, and the sample cannot be clamped for testing due to space problems; the shallow groove will cause the problems of too large volume of the device, too little sample frozen at one time, uneven sample freezing and the like.

Present summer is than pendulum bob shock sample cryoscope in market is simply equipped with the low temperature groove of placing freezing sample, can not the effectual space that utilizes, causes great waste, and is inefficient, and the sample is frozen inhomogeneous moreover, has the problem that the precision is low. In addition, because the current user generally has the problems of large laboratory workload and small laboratory area, a cryometer with large sample placing quantity, small volume and convenient operation is needed.

Disclosure of Invention

To the above-mentioned defect that exists among the prior art, the utility model provides a summer is than pendulum hammer impact specimen low temperature appearance that sample volume is big, the precision is high, small, convenient operation to place.

The utility model discloses a realize through following technical scheme: the utility model provides a summer is than pendulum impact specimen low temperature appearance, includes casing, freezing groove, is used for giving the refrigerated refrigerating unit in freezing groove, characterized by: the refrigerating unit is arranged at the lower part of the shell, the freezing tank is arranged at the upper part of the refrigerating unit, a tank cover is arranged at the upper part of the freezing tank, a temperature sensor, a lifting device and a stirring motor with the lower part connected with a stirrer are arranged on the tank cover, the lifting device comprises a fixed seat, a stepping motor, a lead screw connecting plate, a lead screw, a slide block and a lifting connecting rod, wherein the slide block is connected with the lead screw in a matching way, the fixed seat is vertically fixed on the slot cover, the lead screw connecting plate is connected with the fixed seat, the stepping motor is arranged on the upper part of the lead screw connecting plate, the lead screw is vertically arranged on the lead screw connecting plate, the output shaft of the stepping motor is connected with the lead screw through a coupler, the sliding block is connected with the lifting connecting rod through a lifting connecting piece, and the lower end of the lifting connecting rod is connected with a sample basket supporting plate.

The utility model discloses the during operation is equipped with the refrigerating fluid in the freezing groove, and refrigerating unit is used for refrigerating the cooling for the freezing groove, and temperature sensor is used for detecting the temperature in the freezing groove, and agitator motor can drive the agitator and stir the refrigerating fluid of freezing inslot, guarantees that the inslot temperature is even. The lifting device drives the screw to rotate through the stepping motor, the screw rotates to drive the slider to lift, the slider drives the lifting connecting rod to lift, and then the sample basket supporting plate is driven to lift through the lifting connecting rod, and the sample basket is fixed on the sample basket supporting plate, so that a sample in the sample basket is driven to rise or fall. The sample can be conveniently taken and placed by the ascending of the sample basket, and a plurality of layers of sample baskets can be fixed on the sample basket supporting plate for freezing simultaneously.

Further, in order to facilitate the movement, casters are disposed at the bottom of the housing.

Furthermore, in order to ensure the lifting safety of the lifting device, the slide block is connected with a limit stop, and the upper part and the lower part of the screw rod connecting plate are respectively provided with an upper limit switch and a lower limit switch. The lifting position of the lifting device can be limited by the limit stop and the limit switch, and the working reliability of the equipment is ensured.

The utility model has the advantages that: the utility model has simple structure, can ensure the temperature in the freezing tank to be uniform by arranging the stirrer, ensure the sample to be uniformly frozen and ensure the test precision; drive the sample basket through setting up elevating gear and go up and down, can conveniently get and put the sample, convenient operation, the degree of depth of the freezing groove of this kind of structure can design deeply simultaneously, can fix the multilayer sample basket on sample basket layer board and freeze simultaneously, once freezes the sample volume big, can finely satisfy the experiment demand to can reduce the volume of complete machine greatly.

Drawings

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

fig. 2 is a schematic front view of the lifting device of the present invention;

FIG. 3 is a schematic left side view of FIG. 2;

in the figure, 1 is a cabinet, 2 is a refrigerating unit, 3 is a caster, 4 is a tank cover, 5 is a stirring motor, 6 is a lifting device, 7 is a temperature sensor, 8 is a freezing tank, 9 is a control switch, 10 is a temperature control meter, 11 is a stepping motor, 12 is a limit stopper, 13 is a coupling, 14 is a lead screw, 15 is a slider, 16 is a sample basket, 17 is an upper limit switch, 18 is a fixed seat, 19 is a lead screw connecting plate, 20 is a lower limit switch, 21 is a sample basket supporting plate, 22 is a lifting connecting plate, and 23 is a lifting connecting rod.

Detailed Description

The invention will now be further described by way of non-limiting examples with reference to the accompanying drawings:

as shown in the attached drawing, the Charpy pendulum impact sample low-temperature instrument comprises a shell 1, a freezing tank 8, a refrigerating unit 2, a stirring motor 5 and a lifting device. Wherein casing 1 is the frame foundation, refrigerating unit 2 sets up the lower part at casing 1, freezing groove 8 sets up the upper portion at refrigerating unit 2, and refrigerating unit 2 is used for cooling down for freezing groove 8, and casing 1 bottom four corners is provided with truckle 3. The upper part of the freezing tank 8 is provided with a tank cover 4, and the tank cover 4 is filled with heat insulation materials. The tank cover 4 is provided with a temperature sensor 7, a lifting device and a stirring motor 5, the temperature sensor 7 is used for detecting the temperature in the freezing tank 8, the lower part of the stirring motor 5 is connected with a stirrer, used for ensuring the temperature of the freezing tank 8 to be uniform, the lifting device comprises a fixed seat 18, a stepping motor 11, a lead screw connecting plate 19, a lead screw 14, a slide block 15 which is matched and connected with the lead screw 14 and a lifting connecting rod 23, the fixed seat 18 is vertically fixed on the slot cover 4, the lead screw connecting plate 19 is connected with the fixed seat 18, the stepping motor 11 is arranged on the upper part of the lead screw connecting plate 19, the lead screw 14 is vertically arranged on the lead screw connecting plate 19, an output shaft of the stepping motor 11 is connected with one end of a lead screw 14 through a coupler 13, one side of the sliding block 15 is connected with a lifting connecting piece 22, the lifting connecting piece 22 is connected with a vertically arranged lifting connecting rod 23, and the lower end of the lifting connecting rod 23 is connected with a sample basket supporting plate 21. The sample basket holding the sample may be fixed to the sample basket support plate 21. An upper limit switch 17 is provided on the upper portion of the screw connecting plate 19, a lower limit switch 20 is provided on the lower portion of the screw connecting plate 19, a limit stopper 12 is connected to the slider 15, and the lifting of the lifting device can be limited by the cooperation of the limit stopper 12 with the upper limit switch 17 and the lower limit switch 20. The front part of the machine shell 1 is also provided with a control switch 9 and a temperature control meter 10, the control switch 9 and the temperature control meter 10 are connected with a control circuit, the control switch 9 is used for controlling the operation of equipment, and the temperature control meter 11 is used for displaying and controlling the temperature of the equipment.

The utility model discloses the during operation adds the refrigerating fluid in the freezing groove 8, and the sample basket is fixed on sample basket layer board 21. Open control switch 9, temperature control table 10 shows the temperature, refrigerating unit 2 begins work, place the sample in the sample basket, press control switch 9, step motor 11 is rotatory, it is rotatory to drive lead screw 14 through shaft coupling 13, lead screw 14 drives slider 15 and descends, slider 15 drives lift connecting rod 23 through lift connection piece 22 and descends, and then it descends to drive the sample basket on sample basket layer board 21 and the sample basket layer board 21 through lift connecting rod 13, step motor 11 stops rotatoryly after limit stop 12 touches lower limit switch 20, the sample moves to the bottom of freezing groove 8. After reaching the temperature, press control switch 9 again, step motor 11 is rotatory, it is rotatory to drive lead screw 14 through shaft coupling 13, lead screw 14 drives slider 15 and rises, slider 15 drives lift connecting rod 23 through lift connection piece 22 and rises, lift connecting rod 23 drives sample basket layer board 21 and sample basket and rises, step motor 11 stops rotatoryly after limit stop 12 touches limit switch 17, the sample moves to 8 upper portions of freezing groove, the sample test of pressing from both sides this moment.

The utility model discloses simple structure, it is small, convenient operation, control accuracy is high, and once freezing sample volume is big, can satisfy the experiment demand.

Other parts in this embodiment are the prior art, and are not described herein again.

Claims

1. The utility model provides a summer is than pendulum impact specimen low temperature appearance, includes casing (1), freezing groove (8), is used for giving refrigerating unit (2) of freezing groove (8) refrigeration, characterized by: the refrigeration unit (2) is arranged at the lower part of the casing (1), the freezing tank (8) is arranged at the upper part of the refrigeration unit (2), a tank cover (4) is arranged at the upper part of the freezing tank (8), a temperature sensor (7), a lifting device and a stirring motor (5) of a lower connection stirrer are arranged on the tank cover (4), the lifting device comprises a fixed seat (18), a stepping motor (11), a lead screw connecting plate (19), a lead screw (14), a sliding block (15) and a lifting connecting rod (23), the sliding block (15) is connected with the lead screw (14) in a matching way, the fixed seat (18) is vertically fixed on the tank cover (4), the lead screw connecting plate (19) is connected with the fixed seat (18), the stepping motor (11) is arranged at the upper part of the lead screw connecting plate (19), and the lead screw (14) is vertically arranged on the lead screw connecting plate (19), the output shaft of the stepping motor (11) is connected with the lead screw (14) through a coupler, the sliding block (15) is connected with the lifting connecting rod (23) through a lifting connecting piece (22), and the lower end of the lifting connecting rod (23) is connected with a sample basket supporting plate (21).

2. The charpy pendulum impact specimen cryostat according to claim 1, wherein: the bottom of the machine shell (1) is provided with a caster.

3. The charpy pendulum impact specimen cryostat according to claim 1 or 2, wherein: the slider (15) is connected with a limit stop (12), and the upper part and the lower part of the screw rod connecting plate (19) are respectively provided with an upper limit switch and a lower limit switch.