Substance detection test vacuum tank

Abstract

The utility model discloses a substance detection test vacuum tank, which comprises a first vacuum tank, a second vacuum tank and a sample delivery vehicle, the first vacuum tank and the second vacuum tank are both provided with air exhaust interfaces, the first vacuum tank is connected with the second vacuum tank, and communication and separation of the first vacuum tank and the second vacuum tank are controlled by a valve. A first guide rail is arranged in the first vacuum tank, a second guide rail is arranged in the second vacuum tank, the second guide rail is arranged in the extending direction of the first guide rail, and the sample conveying vehicle runs on the first guide rail and the second guide rail and is provided with at least two sets of driving wheels and at least one set of driven wheels. The distance between the driving wheels and the distance between the driving wheels and the driven wheels are larger than the distance between the first guide rail and the second guide rail. According to the utility model, the first vacuum tank and the second vacuum tank which can be turned off are adopted, and the second vacuum tank is pretreated, so that the requirement of repeated sample feeding can be met under the condition that the first vacuum tank is not influenced, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a vacuum tank, in particular to a vacuum tank for material detection testing. Background Art

[0002] Material detection experiments are an important scientific research activity, the main goal of which is to simulate the surface environment characteristics of various planets so as to conduct in-depth tests and analyses of different samples under such conditions. Such experiments are of great significance for understanding key issues such as the geological composition, climate conditions and possible signs of life on planets.

[0003] In material detection tests, the vacuum tank is a crucial equipment, and the vacuum tank usually has a large volume. However, due to the large volume of the tank, the vacuum pumping process is often long. During the test, the hatch of the vacuum tank needs to be opened frequently for various reasons, such as adding or replacing samples, adjusting experimental equipment, etc. However, each time the hatch is opened, the temperature of the vacuum tank needs to be slowly restored to a state close to room temperature, and then the re-pressurization operation is performed, that is, the pressure in the tank is gradually increased to atmospheric pressure before the door is opened. Therefore, the entire test process lasts a long time and the efficiency is relatively low. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the task of the utility model is to provide a vacuum tank for material detection testing, aiming to solve the problem of long time and low efficiency caused by the door opening operation of the vacuum tank during the test.

[0005] The technical scheme of the utility model is as follows: A material detection test vacuum tank, comprising a first vacuum tank, a second vacuum tank and a sample delivery vehicle, the first vacuum tank and the second vacuum tank are both provided with an exhaust interface, the first vacuum tank is connected to the second vacuum tank and the connection and isolation between the first vacuum tank and the second vacuum tank are controlled by a valve, a first guide rail is provided in the first vacuum tank, a second guide rail is provided in the second vacuum tank, the second guide rail is arranged in the extension direction of the first guide rail, the sample delivery vehicle runs on the first guide rail and the second guide rail, the sample delivery vehicle is provided with at least two sets of driving wheels and at least one set of driven wheels, the spacing between the driving wheels and between the driving wheels and the driven wheels are greater than the spacing between the first guide rail and the second guide rail.

[0006] Furthermore, in order to control the total length of the vacuum tank for the material detection test, the axis of the first vacuum tank is cross-set with the axis of the second vacuum tank, a third guide rail and a transfer and transport mechanism are provided in the first vacuum tank, the transfer and transport mechanism runs on the third guide rail, the transfer and transport mechanism includes a turntable and a lifting mechanism for driving the turntable to rise and fall, and the sample delivery vehicle is provided with a slot extending from the front end to the rear end for avoiding the transfer and transport mechanism.

[0007] Furthermore, the sample delivery vehicle includes two longitudinal beams and a plurality of cross beams, wherein the cross beams are connected between the longitudinal beams, the cross beams are arranged at the middle and tail portions of the longitudinal beams, and the notch is formed between the front portions of the two longitudinal beams.

[0008] Furthermore, the turntable includes a rotation drive device, a rotating shaft sleeve, a central axis and a table top, a vertically movable central axis is arranged in the rotating shaft sleeve, the table top is connected to the central axis, the rotation drive device drives the rotating shaft sleeve to drive the central axis to rotate, the lifting mechanism includes a lifting drive device and a screw rod, the screw rod and the central axis are matched to form a screw rod nut kinematic pair, and the lifting drive device drives the screw rod to rotate.

[0009] Furthermore, in order to ensure stability during lifting and rotation, a plurality of guide holes are provided on the surface of the turntable, a sample carrying platform is provided on the sample delivery vehicle, and a guide column cooperating with the guide holes is provided on the bottom surface of the sample carrying platform.

[0010] Furthermore, the guide hole and the guide column are truncated cone shapes that match each other.

[0011] Further, the first guide rail and the second guide rail are arranged along the axial direction of the second vacuum tank.

[0012] Furthermore, the third guide rail is arranged along the axial direction of the first vacuum tank.

[0013] The advantages of the utility model compared with the prior art are:

[0014] The second vacuum tank is set up to form a transition area for sample storage. The second vacuum tank only needs to accommodate the second rail, the sample delivery vehicle and the sample, so it can be set smaller, and can quickly achieve an environmental state close to the first vacuum tank, and can be operated in advance, so when it is necessary to take the sample from the first vacuum tank, it is not necessary to reheat and repressurize the first vacuum tank, which improves the efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of the vacuum tank for material detection test in the embodiment.

[0016] Figure 2 It is a schematic diagram of the lateral structure of the vacuum tank for material detection test of the embodiment.

[0017] Figure 3 This is a schematic diagram of the top view of the structure of the sample delivery vehicle cooperating with the first guide rail and the second guide rail (on the second guide rail).

[0018] Figure 4This is a schematic diagram of the top view of the structure of the sample delivery vehicle cooperating with the first guide rail and the second guide rail (located between the first guide rail and the second guide rail).

[0019] Figure 5 Schematic diagram of the lateral structure of the sample delivery vehicle (with a sample carrying platform).

[0020] Figure 6 It is a schematic diagram of the structure of the transfer and transportation mechanism (with a sample carrying platform). DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments, but is not intended to limit the present invention.

[0022] Please combine Figure 1 , Figure 2 As shown, the material detection test vacuum tank involved in this embodiment includes a first vacuum tank 1, a second vacuum tank 2 and a sample delivery vehicle 3. The first vacuum tank 1 is the main tank body for material detection test, and the second vacuum tank 2 is a transition tank body to provide a preparation space for samples. The second vacuum tank 2 is connected to the first vacuum tank 1, and the two are connected by a valve. In this embodiment, the valve is a plug valve 4. The opening and closing of the valve can control the connection and isolation between the first vacuum tank 1 and the second vacuum tank 2, so that the internal spaces of the two are connected or separated.

[0023] As a preferred embodiment, the second vacuum tank 2 is connected to the side of the first vacuum tank 1, that is, the axis of the first vacuum tank 1 and the axis of the second vacuum tank 2 are perpendicularly intersected, which can control the total length of the entire device and utilize the lateral space of the device to avoid excessive occupation. Both the first vacuum tank 1 and the second vacuum tank 2 are provided with an exhaust interface to achieve a vacuum low-pressure environment inside the two.

[0024] A first guide rail 5 is laid in the first vacuum tank 1, and a second guide rail 6 is laid in the second vacuum tank 2. Both the first guide rail 5 and the second guide rail 6 include two left and right rails. Generally speaking, the second guide rail 6 is arranged parallel to the axial direction of the second vacuum tank 2. The purpose of laying the first guide rail 5 and the second guide rail 6 is to enable the sample delivery vehicle 3 to shuttle between the first vacuum tank 1 and the second vacuum tank 2. Therefore, the first guide rail 5 is arranged in the extension direction of the second guide rail 6, that is, the first guide rail 5 is also parallel to the axial direction of the second vacuum tank 2. Due to the existence of the gate valve 4, the first guide rail 5 and the second guide rail 6 cannot be directly connected, and a certain distance is left between them.

[0025] Please combine Figures 3 to 5As shown, the sample delivery vehicle 3 needs to be able to run on the first guide rail 5 and the second guide rail 6 respectively and to be able to transfer between the first guide rail 5 and the second guide rail 6, so a plurality of wheel sets are arranged at the bottom of the sample delivery vehicle 3 to match the first guide rail 5 and the second guide rail 6. At least two sets of driving wheels 7 and at least one set of driven wheels 8 are included. In order to enable the sample delivery vehicle 3 to smoothly transfer from the first guide rail 5 to the second guide rail 6, or from the second guide rail 6 to the first guide rail 5, the distance between the two sets of driving wheels 7 or between the driving wheel 7 and the driven wheel 8 (also referred to as the wheelbase) is greater than the distance between the first guide rail 5 and the second guide rail 6. In this way, no matter where the sample delivery vehicle 3 is located on the first guide rail 5 and the second guide rail 6, at least two sets of wheels (one set of driving wheels 7 and one set of driven wheels 8, or two sets of driving wheels 7) are on the first guide rail 5 or the second guide rail 6 to ensure the stability of the sample delivery vehicle 3, and at least one set of driving wheels 7 is on the first guide rail 5 or the second guide rail 6 to drive the sample delivery vehicle 3 to move. In this embodiment, three sets of driven wheels 8 and two sets of driving wheels 7 are provided. The two sets of driving wheels 7 are driven by a driving motor 9 connected to a gear transmission mechanism 10.

[0026] In this embodiment, since the axis of the first vacuum tank 1 and the axis of the second vacuum tank 2 are perpendicularly intersected, and the first vacuum tank 1 has a longer tank body, even if the sample delivery vehicle 3 enters the first vacuum tank 1 from the second vacuum tank 2, it cannot reach the test area of ​​the first vacuum tank 1. In addition, considering the power supply problem of the sample delivery vehicle 3, if the sample delivery vehicle 3 is used as a full-range moving device for the sample, the system layout becomes complicated. A third guide rail 11 is also laid in the first vacuum tank 1. The third guide rail 11 is set lower than the second guide rail 6, and a transfer and transportation mechanism 12 runs on the third guide rail 11. The transfer and transportation mechanism 12 transports the sample transferred by the sample delivery vehicle 3 to the test area of ​​the first vacuum tank 1.

[0027] In order to achieve the transfer of samples, the body of the sample delivery vehicle 3 includes two longitudinal beams 301 and several cross beams 302. The cross beams 302 are connected between the longitudinal beams 301. The cross beams 302 are arranged in the middle and tail of the longitudinal beams 301. A slot 303 is formed between the front parts of the two longitudinal beams 301. The slot 303 is used to avoid the transfer and transportation mechanism 12, so that the transfer and transportation mechanism 12 can lift and move the samples from the sample delivery vehicle 3.

[0028] Please combine Figure 6As shown, the specific transfer and transport mechanism 12 includes a turntable and a lifting mechanism for driving the turntable to rise and fall. The operation of the transfer and transport mechanism 12 on the third track 11 is achieved by a vacuum motor driving a roller. This is a prior art structure and will not be described in detail. The turntable includes a rotation drive device 1201, a rotating shaft sleeve 1202, a central axis 1203 and a table 1204. A vertically movable central axis 1203 is arranged in the rotating shaft sleeve 1202. The table 1204 is fixedly connected to the central axis 1203. The rotation drive device 1201 is a worm gear mechanism. The first vacuum motor 1201a drives the worm wheel 1201b to rotate through a worm. The worm wheel 1201b is fixedly connected to the rotating shaft sleeve 1202. When the rotating shaft sleeve 1202 rotates, it drives the central axis 1203 to rotate, thereby rotating the table 1204. The lifting mechanism includes a lifting drive device 1205 and a screw 1206. The lifting drive device is driven by the second vacuum motor 1205a through the meshing of the bevel gears 1205b of the two to drive the screw 1206 to rotate. The screw 1206 extends into the central axis 1203 and matches with the central axis 1203 to form a screw-nut motion pair. The central axis 1203 is confined in the rotating shaft sleeve 1202. When the screw 1206 rotates, the central axis 1203 is lifted and lowered, thereby lifting and lowering the table 1204. In a preferred embodiment, a plurality of guide holes 1204a are provided on the surface of the table 1204, a sample carrier table 13 is provided on the sample delivery vehicle 3, and a guide column 1301 cooperating with the guide hole 1204a is provided on the bottom surface of the sample carrier table 13. The guide hole 1204a and the guide column 1301 are mutually matching truncated cones. When the transfer and transport mechanism 12 is located under the sample carrier table 13 and starts to lift, the table 1204 and the sample carrier table 13 can be automatically aligned through the self-positioning effect of the truncated cone to correct a slight positional offset, thereby ensuring the stability of the lifting. After the guide hole 1204a and the guide column 1301 are aligned, the turntable can be rotated more smoothly.

Claims

1. A vacuum tank for material detection test, characterized in that: The invention comprises a first vacuum tank, a second vacuum tank and a sample delivery vehicle, wherein the first vacuum tank and the second vacuum tank are both provided with an exhaust interface, the first vacuum tank is connected with the second vacuum tank and the connection and isolation between the first vacuum tank and the second vacuum tank are controlled by a valve, a first guide rail is provided in the first vacuum tank, a second guide rail is provided in the second vacuum tank, the second guide rail is arranged in the extension direction of the first guide rail, the sample delivery vehicle runs on the first guide rail and the second guide rail, the sample delivery vehicle is provided with at least two sets of driving wheels and at least one set of driven wheels, the spacing between the driving wheels and between the driving wheels and the driven wheels are both greater than the spacing between the first guide rail and the second guide rail.

2. The material detection test vacuum tank according to claim 1, characterized in that: The axis of the first vacuum tank is arranged to cross the axis of the second vacuum tank. A third guide rail and a transfer and transport mechanism are provided in the first vacuum tank. The transfer and transport mechanism runs on the third guide rail. The transfer and transport mechanism includes a turntable and a lifting mechanism for driving the turntable to rise and fall. The sample delivery vehicle is provided with a slot extending from the front end to the rear end for avoiding the transfer and transport mechanism.

3. The material detection test vacuum tank according to claim 2, characterized in that: The sample delivery vehicle comprises two longitudinal beams and a plurality of transverse beams, wherein the transverse beams are connected between the longitudinal beams, the transverse beams are arranged at the middle and tail parts of the longitudinal beams, and the notch is formed between the front parts of the two longitudinal beams.

4. The material detection test vacuum tank according to claim 2, characterized in that: The turntable includes a rotation drive device, a rotating shaft sleeve, a central axis and a table top. The rotating shaft sleeve is provided with a vertically movable central axis. The table top is connected to the central axis. The rotation drive device drives the rotating shaft sleeve to drive the central axis to rotate. The lifting mechanism includes a lifting drive device and a screw rod. The screw rod and the central axis are matched to form a screw rod nut kinematic pair. The lifting drive device drives the screw rod to rotate.

5. The material detection test vacuum tank according to claim 2, characterized in that: The surface of the turntable is provided with a plurality of guide holes, the sample delivery vehicle is provided with a sample carrying platform, and the bottom surface of the sample carrying platform is provided with guide columns matched with the guide holes.

6. The material detection test vacuum tank according to claim 5, characterized in that: The guide hole and the guide column are mutually matching truncated cone shapes.

7. The material detection test vacuum tank according to claim 1, characterized in that: The first guide rail and the second guide rail are arranged along the axial direction of the second vacuum tank.

8. The material detection test vacuum tank according to claim 2, characterized in that: The first guide rail and the second guide rail are arranged along the axial direction of the second vacuum tank, and the third guide rail is arranged along the axial direction of the first vacuum tank.

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