Solid density detection device

Abstract

The utility model discloses a solid density detection device which comprises a Z-shaped weighing frame, the Z-shaped weighing frame is installed above a box body, a first placing groove is formed in the top of the Z-shaped weighing frame, a weighing table is arranged under the first placing groove, the weighing table is connected with the top of the Z-shaped weighing frame through a connecting rope, and a second placing groove is formed in the weighing table; a vertically-arranged hollow rotating shaft is rotationally installed on the box body, an electric telescopic rod is fixedly installed in a main body of the hollow rotating shaft, the extending end of the electric telescopic rod is arranged upwards in the vertical direction, the head of the extending end of the electric telescopic rod is fixedly connected with a horizontally-arranged swing arm, and a pneumatic clamping jaw is arranged below the end, away from the electric telescopic rod, of the swing arm. According to the solid density detection device provided by the utility model, a sample can be automatically taken and placed in a measurement process, and the sample can be transferred without manual participation, so that the convenience degree and the accuracy of a test are improved.

Description

Technical Field

[0001] The utility model relates to a solid density detection device, belonging to the technical field of density detection. Background Art

[0002] The detection principle of the solid density detection device: Use an electronic analytical balance to calculate the weight of the sample in air (W1) and in water (W2) and calculate the W1-W2 value. The default density of water is ρ=1g / cm3. By establishing the equation Vsample=Vdrainage, the density of the sample can be calculated: ρ=W1 / (W1-W2)×ρwater.

[0003] The solid density detection device needs to measure two parameters: the sample's weight in air and its weight in water during the sample weighing process. The sample needs to be picked up, placed and transferred manually during the measurement process. All actions need to be completed manually. The degree of automation is low and is affected by human factors such as fatigue, rest, distraction, and carelessness. It is difficult to achieve long-term rapid and accurate detection.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the deficiencies in the background technology, the utility model provides a solid density detection device, which can automatically take and place samples and complete the transfer of sample positions during the measurement process without manual intervention, thereby improving the convenience and accuracy of the test.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The solid density detection device comprises a Z-shaped weighing frame, which is installed above the box body, and a first placement slot is provided on the top of the Z-shaped weighing frame; a weighing platform is provided directly below the first placement slot, and the weighing platform is connected to the top of the Z-shaped weighing frame through a connecting rope, and a second placement slot is provided on the weighing platform;

[0008] A vertically arranged hollow rotating shaft is rotatably installed on the box body, an electric telescopic rod is fixedly installed inside the main body of the hollow rotating shaft, the extended end of the electric telescopic rod is arranged upward in the vertical direction, the head of the extended end of the electric telescopic rod is fixedly connected to the horizontally arranged swing arm, and a pneumatic clamp is provided below the end of the swing arm away from the electric telescopic rod.

[0009] Furthermore, a weight sensor is installed between the bottom of the Z-shaped weighing frame and the box body.

[0010] Furthermore, the weighing platform is immersed in a transparent water tank, and the transparent water tank is located directly above the box body.

[0011] Furthermore, the hollow rotating shaft is located on the sides of the Z-shaped weighing frame and the transparent water tank, and the hollow rotating shaft is connected to the box body through a bearing seat.

[0012] Furthermore, the bottom end of the hollow shaft extends to the inside of the box, the bottom end of the hollow shaft is connected to the stepper motor, and the stepper motor is fixedly installed inside the box.

[0013] Furthermore, guide rods are arranged parallel to the extended end of the electric telescopic rod on both sides, the top of the guide rod is fixedly connected to the swing arm, the main body of the guide rod is slidably arranged in the fixed plate, and the fixed plate is fixedly connected to the top of the hollow rotating shaft.

[0014] Furthermore, a sample turntable is provided above the box body, and the upper surface of the sample turntable and the upper surface of the weighing platform are at the same level.

[0015] Furthermore, the sample turntable, the first placement slot and the second placement slot are all located below the rotation track of the pneumatic clamping jaws.

[0016] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0017] The pneumatic gripper in the utility model can not only perform lifting motion under the action of the electric telescopic rod, but also perform rotational motion under the action of the stepping motor. The pneumatic gripper can grab the sample into the first placement slot to obtain the weight of the sample in the air, then transfer the sample to the second placement slot to obtain the weight of the sample in water, and finally grab the sample back to the sample turnover table;

[0018] The utility model can automatically take and place samples and complete the transfer of sample positions during the measurement process without manual intervention, thereby improving the convenience and accuracy of the test.

[0019] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the rotation trajectory of the pneumatic gripper.

[0023] In the figure, 1-Z-shaped weighing frame, 2-box, 3-weight sensor, 4-first placement slot, 5-weighing table, 6-connecting rope, 7-second placement slot, 8-transparent water tank, 9-hollow rotating shaft, 10-bearing seat, 11-electric telescopic rod, 12-swing arm, 13-pneumatic clamp, 14-guide rod, 15-fixed plate, 16-sample turnover table, 17-stepping motor. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0025] like Figure 1-Figure 3 As shown together, the utility model provides a solid density detection device, including a Z-shaped weighing frame 1, the Z-shaped weighing frame 1 is installed above a box body 2, and a weight sensor 3 is installed between the bottom of the Z-shaped weighing frame 1 and the box body 2.

[0026] A first placement slot 4 is provided on the top of the Z-shaped weighing frame 1 . The sample is placed in the first placement slot 4 , and the weight of the sample in the air can be obtained through the weight sensor 3 .

[0027] A weighing platform 5 is provided directly below the first placement slot 4 . The weighing platform 5 is connected to the top of the Z-shaped weighing frame 1 through a connecting rope 6 . A second placement slot 7 is provided on the weighing platform 5 .

[0028] The weighing platform 5 is immersed in a transparent water tank 8 , and the transparent water tank 8 is located directly above the box body 2 .

[0029] The sample is placed in the second placement groove 7 , and the weight of the sample in water can be obtained by the weight sensor 3 .

[0030] A vertically arranged hollow shaft 9 is rotatably mounted on the box body 2 . The hollow shaft 9 is located on the side of the Z-shaped weighing frame 1 and the transparent water tank 8 . The hollow shaft 9 is connected to the box body 2 via a bearing seat 10 .

[0031] The bottom end of the hollow shaft 9 extends to the inside of the box body 2 . The bottom end of the hollow shaft 9 is connected to the stepper motor 17 . The stepper motor 17 is fixedly installed inside the box body 2 .

[0032] An electric telescopic rod 11 is fixedly installed inside the main body of the hollow rotating shaft 9, and the extended end of the electric telescopic rod 11 is arranged upward in the vertical direction.

[0033] The head of the extended end of the electric telescopic rod 11 is fixedly connected to the horizontally arranged swing arm 12, and guide rods 14 arranged parallel to the extended end of the electric telescopic rod 11 are respectively provided on both sides of the extended end of the electric telescopic rod 11, the top of the guide rod 14 is fixedly connected to the swing arm 12, and the main body of the guide rod 14 is slidably arranged in the fixed plate 15, and the fixed plate 15 is fixedly connected to the top of the hollow rotating shaft 9.

[0034] During the extension of the electric telescopic rod 11 , the guide rod 14 is driven to slide along the fixed plate 15 , and the stability and straightness of the swing arm 12 during the lifting process are ensured by the guide rod 14 .

[0035] A pneumatic clamp 13 is provided below the end of the swing arm 12 away from the electric telescopic rod 11 , and the pneumatic clamp 13 is used to pick up or place the sample.

[0036] A sample turntable 16 is also provided above the box body 2 , and the upper surface of the sample turntable 16 and the upper surface of the weighing platform 5 are at the same level.

[0037] The sample turntable 16 , the first placement slot 4 and the second placement slot 7 are all located below the rotation track of the pneumatic clamping jaws 13 .

[0038] The pneumatic clamping jaw 13 and the swing arm 12 of the utility model will not interfere with the connection rope 6 in position during the rotation process.

[0039] The specific working principle of this utility model:

[0040] The pneumatic clamping jaw 13 of the utility model can not only perform lifting motion under the action of the electric telescopic rod 11 , but also perform rotating motion under the action of the stepping motor 17 .

[0041] During the test, firstly, pure water is injected into the transparent water tank 8 so that the weighing platform 5 is immersed in the transparent water tank 8; the solid sample to be tested is placed on the sample turntable 16; the pneumatic gripper 13 grabs the sample into the first placement slot 4 to obtain the weight of the sample in the air; then the pneumatic gripper 13 transfers the sample to the second placement slot 7 to obtain the weight of the sample in water, and finally the sample in the second placement slot 7 is grabbed back onto the sample turntable 16; the density of the solid sample is calculated according to the formula: sample density = (sample weight in air × water density) ÷ (sample weight in air - sample weight in water).

[0042] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A solid density detection device, characterized in that: The Z-shaped weighing frame (1) is installed above a box body (2), and a first placement slot (4) is provided on the top of the Z-shaped weighing frame (1); a weighing platform (5) is provided directly below the first placement slot (4), and the weighing platform (5) is connected to the top of the Z-shaped weighing frame (1) via a connecting rope (6); a second placement slot (7) is provided on the weighing platform (5); A vertically arranged hollow rotating shaft (9) is rotatably mounted on the box body (2); an electric telescopic rod (11) is fixedly mounted inside the main body of the hollow rotating shaft (9); the extended end of the electric telescopic rod (11) is arranged upward in the vertical direction; the head of the extended end of the electric telescopic rod (11) is fixedly connected to a horizontally arranged swing arm (12); and a pneumatic clamp (13) is provided below the end of the swing arm (12) away from the electric telescopic rod (11).

2. The solid density detection device according to claim 1, characterized in that: A weight sensor (3) is installed between the bottom of the Z-shaped weighing frame (1) and the box body (2).

3. The solid density detection device according to claim 1, characterized in that: The weighing platform (5) is immersed in a transparent water tank (8), and the transparent water tank (8) is located directly above the box body (2).

4. The solid density detection device according to claim 3, characterized in that: The hollow rotating shaft (9) is located on the side of the Z-shaped weighing frame (1) and the transparent water tank (8), and the hollow rotating shaft (9) is connected to the box body (2) through a bearing seat (10).

5. The solid density detection device according to claim 4, characterized in that: The bottom end of the hollow rotating shaft (9) extends into the interior of the box body (2), and the bottom end of the hollow rotating shaft (9) is connected to the stepping motor (17), and the stepping motor (17) is fixedly mounted inside the box body (2).

6. The solid density detection device according to claim 1, characterized in that: Guide rods (14) are respectively provided on both sides of the extended end of the electric telescopic rod (11) and are arranged parallel thereto. The top end of the guide rod (14) is fixedly connected to the swing arm (12). The main body of the guide rod (14) is slidably arranged in a fixed plate (15). The fixed plate (15) is fixedly connected to the top of the hollow rotating shaft (9).

7. The solid density detection device according to claim 1, characterized in that: A sample turntable (16) is also provided above the box body (2), and the upper surface of the sample turntable (16) and the upper surface of the weighing platform (5) are located at the same level.

8. The solid density detection device according to claim 7, characterized in that: The sample turntable (16), the first placement slot (4) and the second placement slot (7) are all located below the rotation track of the pneumatic clamping jaws (13).

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