A hardness tester for testing the structure of a screw extruder

Abstract

The utility model discloses a hardness tester for testing the structure of a screw extruder, which is applied in the field of screw extruders. The utility model rotates a worm by rotating a crank, and the rotation of the worm drives the rotation of a worm wheel, and the rotation of the worm wheel drives the rotation of a tooth column, and the rotation of the tooth column drives the rotation of a tooth ring, and the rotation of the tooth ring drives other tooth columns to rotate, so that the tooth rod moves, and the movement of the tooth rod drives the movement of a clamping plate, so that the distance between the clamping plates is changed, and the purpose of fixing samples of different sizes is achieved, the cost of detection is reduced, and the applicability is improved. The utility model drives the rotation of a reciprocating screw by the rotation of a motor, and the rotation of the reciprocating screw drives the reciprocating movement of a guide block, and the reciprocating movement of the guide block drives the reciprocating movement of a sliding block, and the reciprocating movement of the sliding block drives the reciprocating movement of a brush, and the method of cleaning the objective lens can achieve the purpose of having a cleaning function, ensure the imaging effect, and reduce the maintenance amount.

Description

Technical Field

[0001] The utility model relates to the field of screw extruders, in particular to a hardness tester for testing the structure of a screw extruder. Background Art

[0002] At present, a Chinese utility model with the announcement number CN219038618U discloses an anti-extrusion hardness tester, including a hardness tester body, a lifting rod and a clamping member, the top of the base of the hardness tester body is provided with a lifting rod, the top of the lifting rod is provided with a stage, the top of the stage is relatively provided with a slide groove, the bottom of the clamping member is provided with a slider extending into the inside of the slide groove, and the side wall of the slider is provided with an elastic member located inside the slide groove. The utility model, through the elastic member, pushes the clamping member to clamp the measurement sample from four directions, and can stably clamp irregular measurement samples. In the clamping state, the measurement sample is prevented from being squeezed out when the pressure head is pressed down, and the distance between the stage and the pressure head is controlled by the lifting rod, thereby controlling the pressure between the pressure head and the measurement sample. Therefore, it is possible to prevent the hardness tester probe from slipping when squeezing the measurement sample, and to prevent the measurement sample from falling from the stage and causing damage to the test product.

[0003] The existing hardness tester cannot fix samples of different sizes. The hardness of the key components of the screw extruder needs to meet the standard. Generally, a hardness tester is used to test them to ensure that they meet the design and use requirements. In order to ensure that the sample does not slide during the test, the hardness tester needs to use a fixing mechanism to fix it. The size of the fixing mechanism is fixed, and it can only fix samples of a fixed size. If it is necessary to fix samples of different sizes, the fixing mechanism needs to be replaced, which is more troublesome and increases the cost of the test, reduces the applicability, and does not have a cleaning function. Generally, the objective lens of the hardness tester is exposed. During long-term use, dust may adhere to the surface of the objective lens, affecting the imaging effect of the objective lens, making it inconvenient to use, and it needs to be maintained regularly, which increases the workload. In order to solve the above-mentioned problems, we propose a hardness tester for screw extruder structure testing. Utility Model Content

[0004] The utility model aims to provide a hardness tester for testing the structure of a screw extruder, which has the advantages of being able to fix samples of different sizes and having a cleaning function.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a hardness tester for testing the structure of a screw extruder, comprising a hardness tester body, a hand wheel is installed on the surface of the hardness tester body, a lifting rod is installed inside the hand wheel, a loading platform is bolted on the top of the lifting rod, a gear ring is rotatably sleeved on the inner wall of the loading platform, a gear column is meshed on the inner wall of the gear ring, and the bottom of the gear column is rotatably connected to the inner wall of the loading platform, a transmission mechanism is arranged at the bottom of the gear column on the right side, a gear rod is meshed on the surface of the gear column, and the gear rod slides with the inner wall of the loading platform The top of the gear rod is bolted with a clamping plate, the surface of the hardness tester body is installed with a detection pressure head and an objective lens, the surface of the hardness tester body is bolted with a protective shell, the surface of the protective shell is bolted with a motor, the output end of the motor extends to the interior of the protective shell and is connected to a reciprocating screw through a coupling, and the other end of the reciprocating screw is rotatably connected to the inner wall of the protective shell, the surface of the reciprocating screw is slidably sleeved with a sliding block, the inner wall of the sliding block is rotatably connected with a guide block, and the guide block is slidably connected to the inner wall of the reciprocating screw, and the surface of the sliding block is bolted with a brush.

[0006] By adopting the above technical scheme, the worm is rotated by turning the crank handle, and the rotation of the worm drives the worm wheel to rotate, and the rotation of the worm wheel drives the tooth column to rotate, and the rotation of the tooth column drives the gear ring to rotate, and the rotation of the gear ring drives other tooth columns to rotate, so that the gear rod moves, and the movement of the gear rod drives the clamping plate to move, so that the distance between the clamping plates is changed, and the purpose of fixing samples of different sizes can be achieved, reducing the cost of detection and improving applicability. The reciprocating screw is driven by the rotation of the motor to rotate, and the reciprocating screw drives the guide block to move back and forth, and the reciprocating movement of the guide block drives the sliding block to move back and forth, and the reciprocating movement of the sliding block drives the brush to move back and forth, so that the objective lens is cleaned, and the purpose of having a cleaning function can be achieved, the imaging effect is guaranteed, and the maintenance amount is reduced.

[0007] The utility model is further configured as follows: the transmission mechanism includes a fixed shell, the fixed shell is bolted to the bottom of the loading platform, a worm wheel is fixedly sleeved on the bottom of the gear column, a worm is meshed on the surface of the worm wheel, and the worm is rotatably sleeved on the inner wall of the fixed shell, and a crank is bolted to one end of the worm.

[0008] By adopting the above technical solution and setting a transmission mechanism, it is easy to adjust the size and fix it.

[0009] The utility model is further configured as follows: a first sliding groove is provided on the surface of the gear rod, a first sliding block is slidably connected inside the first sliding groove, and the first sliding block is bolted to the inner wall of the loading platform.

[0010] By adopting the above technical solution, the first sliding groove and the first sliding block are provided to prevent the gear rod from deflecting and ensure stability.

[0011] The utility model is further configured as follows: a second sliding block is bolted on the surface of the sliding block, a second sliding groove is slidably connected on the surface of the second sliding block, and the second sliding groove is opened on the inner wall of the protective shell.

[0012] By adopting the above technical solution, the second sliding block and the second sliding groove are provided to prevent the sliding block from deflecting and ensure stability.

[0013] The utility model is further configured as follows: a rubber pad is bonded to the surface of the pressing plate.

[0014] By adopting the above technical solution, a rubber pad is provided to prevent damage to the sample.

[0015] The utility model is further configured as follows: a fixing plate is rotatably sleeved on the surface of the crank, and the fixing plate is bolted to the bottom of the loading platform.

[0016] By adopting the above technical solution, the crank can be fixed by setting a fixing plate, which is convenient for use.

[0017] The utility model is further configured as follows: the material of the brush is nylon fiber material.

[0018] By adopting the above technical solution, the material of the brush is set to be nylon fiber material, which is cheap and durable.

[0019] The utility model is further configured as follows: a foot is bolted to the bottom of the hardness tester body.

[0020] By adopting the above technical solution and setting the feet, the stability of the device is improved.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. The utility model rotates the crank to rotate the worm, the rotation of the worm drives the worm wheel, the rotation of the worm wheel drives the tooth column, the rotation of the tooth column drives the tooth ring, the rotation of the tooth ring drives other tooth columns to rotate, so that the tooth rod moves, the movement of the tooth rod drives the pressing plate to move, and the distance between the pressing plates is changed, so that the purpose of fixing samples of different sizes can be achieved, the cost of detection is reduced, and the applicability is improved;

[0023] 2. The utility model drives the reciprocating screw to rotate by the rotation of the motor, the reciprocating screw drives the guide block to move back and forth, the reciprocating movement of the guide block drives the sliding block to move back and forth, and the reciprocating movement of the sliding block drives the brush to move back and forth, so as to clean the objective lens. The purpose of having a cleaning function is achieved, the imaging effect is ensured, and the maintenance amount is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0025] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0026] Figure 3 It is a top view cross-sectional view of the local structure of the utility model;

[0027] Figure 4 It is a top view cross-sectional view of the local structure of the utility model;

[0028] Figure 5 This utility model Figure 2 A magnified view of the structure at center;

[0029] Figure 6 This utility model Figure 2 A magnified view of the structure at B in the middle;

[0030] Figure 7 This utility model Figure 4 Enlarged view of the structure at point C in the middle.

[0031] Figure numerals: 1. hardness tester body; 2. hand wheel; 3. lifting rod; 4. loading platform; 5. gear ring; 6. gear column; 7. transmission mechanism; 8. gear rod; 9. clamping plate; 10. detection pressure head; 11. objective lens; 12. protective shell; 13. motor; 14. reciprocating screw; 15. sliding block; 16. guide block; 17. brush; 18. fixed shell; 19. worm gear; 20. worm; 21. crank; 22. first slide groove; 23. first slider; 24. second slider; 25. second slide groove; 26. rubber pad; 27. fixed plate; 28. foot. DETAILED DESCRIPTION

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0033] Embodiment 1:

[0034] refer to Figure 1 , Figure 2 , Figure 3 and Figure 5A hardness tester for testing the structure of a screw extruder comprises a hardness tester body 1, a hand wheel 2 is mounted on the surface of the hardness tester body 1, a lifting rod 3 is mounted inside the hand wheel 2, a loading platform 4 is bolted to the top of the lifting rod 3, a gear ring 5 is rotatably sleeved on the inner wall of the loading platform 4, a gear column 6 is meshed on the inner wall of the gear ring 5, and the bottom of the gear column 6 is rotatably connected to the inner wall of the loading platform 4, a transmission mechanism 7 is arranged at the bottom of the right gear column 6, a gear rod 8 is meshed on the surface of the gear column 6, and the gear rod 8 is rotatably connected to the inner wall of the loading platform 4. The wall is connected by sliding, and a clamping plate 9 is bolted on the top of the gear rod 8. The worm 20 is rotated by turning the crank 21, and the rotation of the worm 20 drives the worm wheel 19 to rotate, and the rotation of the worm wheel 19 drives the gear column 6 to rotate, and the rotation of the gear column 6 drives the gear ring 5 to rotate, and the rotation of the gear ring 5 drives other gear columns 6 to rotate, so that the gear rod 8 moves, and the movement of the gear rod 8 drives the clamping plate 9 to move, so that the distance between the clamping plates 9 is changed, which can achieve the purpose of fixing samples of different sizes, reduce the cost of detection, and improve applicability.

[0035] refer to Figure 5 The transmission mechanism 7 includes a fixed shell 18, which is bolted to the bottom of the stage 4. A worm wheel 19 is fixedly sleeved on the bottom of the tooth column 6. A worm 20 is meshed on the surface of the worm wheel 19, and the worm 20 is rotatably sleeved with the inner wall of the fixed shell 18. A crank 21 is bolted to one end of the worm 20. By setting the transmission mechanism 7, it is easy to adjust the size and fix it.

[0036] refer to Figure 3 A first sliding groove 22 is provided on the surface of the gear rod 8, and a first slider 23 is slidably connected inside the first sliding groove 22, and the first slider 23 is bolted to the inner wall of the loading platform 4. By providing the first sliding groove 22 and the first slider 23, the gear rod 8 is prevented from shifting and stability is ensured.

[0037] refer to Figure 1 A rubber pad 26 is bonded to the surface of the pressing plate 9. The rubber pad 26 is provided to prevent damage to the sample.

[0038] refer to Figure 1 A fixing plate 27 is rotatably sleeved on the surface of the crank 21, and the fixing plate 27 is bolted to the bottom of the loading platform 4. By setting the fixing plate 27, the crank 21 is fixed for easy use.

[0039] Embodiment 2:

[0040] refer to Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7A detection pressure head 10 and an objective lens 11 are installed on the surface of the hardness tester body 1, a protective shell 12 is bolted to the surface of the hardness tester body 1, a motor 13 is bolted to the surface of the protective shell 12, an output end of the motor 13 extends to the inside of the protective shell 12 and is connected to a reciprocating screw 14 through a coupling, and the other end of the reciprocating screw 14 is rotatably connected to the inner wall of the protective shell 12, a sliding block 15 is slidably sleeved on the surface of the reciprocating screw 14, a guide block 16 is rotatably connected to the inner wall of the sliding block 15, and the guide block 16 is slidably connected to the inner wall of the reciprocating screw 14, a brush 17 is bolted to the surface of the sliding block 15, the reciprocating screw 14 is driven to rotate by the rotation of the motor 13, the reciprocating screw 14 drives the guide block 16 to reciprocate, the reciprocating movement of the guide block 16 drives the sliding block 15 to reciprocate, and the reciprocating movement of the sliding block 15 drives the brush 17 to reciprocate, and the method of cleaning the objective lens 11 can achieve the purpose of having a cleaning function, ensure the imaging effect, and reduce the maintenance amount.

[0041] refer to Figure 4 A second slider 24 is bolted to the surface of the sliding block 15, and a second slide groove 25 is slidably connected to the surface of the second slider 24, and the second slide groove 25 is opened on the inner wall of the protective shell 12. By setting the second slider 24 and the second slide groove 25, the sliding block 15 is prevented from deflecting and stability is ensured.

[0042] refer to Figure 4 and Figure 6 The material of the brush 17 is nylon fiber material. By setting the material of the brush 17 to be nylon fiber material, the price is cheap and durable.

[0043] refer to Figure 1 and Figure 2 The bottom of the hardness tester body 1 is bolted with a foot 28, and the stability of the device is improved by providing the foot 28.

[0044] A brief description of the use process: turning the crank 21 rotates the worm 20, the rotation of the worm 20 drives the worm wheel 19 to rotate, the rotation of the worm wheel 19 drives the tooth column 6 to rotate, the rotation of the tooth column 6 drives the gear ring 5 to rotate, the rotation of the gear ring 5 drives other tooth columns 6 to rotate, so that the gear rod 8 moves, the movement of the gear rod 8 drives the clamping plate 9 to move, so that the distance between the clamping plates 9 changes, which can achieve the purpose of fixing samples of different sizes; the rotation of the motor 13 drives the reciprocating screw 14 to rotate, the rotation of the reciprocating screw 14 drives the guide block 16 to reciprocate, the reciprocating movement of the guide block 16 drives the sliding block 15 to reciprocate, the reciprocating movement of the sliding block 15 drives the brush 17 to reciprocate, and the objective lens 11 is cleaned, which can achieve the purpose of having a cleaning function.

[0045] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A hardness tester for testing the structure of a screw extruder, comprising a hardness tester body (1), characterized in that: A hand wheel (2) is installed on the surface of the hardness tester body (1), a lifting rod (3) is installed inside the hand wheel (2), a loading platform (4) is bolted to the top of the lifting rod (3), a gear ring (5) is rotatably sleeved on the inner wall of the loading platform (4), a gear column (6) is meshed on the inner wall of the gear ring (5), and the bottom of the gear column (6) is rotatably connected to the inner wall of the loading platform (4), a transmission mechanism (7) is arranged at the bottom of the gear column (6) on the right side, a gear rod (8) is meshed on the surface of the gear column (6), and the gear rod (8) is slidably connected to the inner wall of the loading platform (4), a clamping plate (9) is bolted to the top of the gear rod (8), and a detection device (1) is installed on the surface of the hardness tester body (1). A pressure measuring head (10) and an objective lens (11); a protective shell (12) is bolted to the surface of the hardness tester body (1); a motor (13) is bolted to the surface of the protective shell (12); an output end of the motor (13) extends to the interior of the protective shell (12) and is connected to a reciprocating screw (14) via a coupling; the other end of the reciprocating screw (14) is rotatably connected to the inner wall of the protective shell (12); a sliding block (15) is slidably sleeved on the surface of the reciprocating screw (14); a guide block (16) is rotatably connected to the inner wall of the sliding block (15); the guide block (16) is slidably connected to the inner wall of the reciprocating screw (14); a brush (17) is bolted to the surface of the sliding block (15).

2. A hardness tester for testing the structure of a screw extruder according to claim 1, characterized in that: The transmission mechanism (7) comprises a fixed shell (18), the fixed shell (18) is bolted to the bottom of the loading platform (4), a worm wheel (19) is fixedly sleeved on the bottom of the tooth column (6), a worm (20) is meshed on the surface of the worm wheel (19), and the worm (20) is rotatably sleeved on the inner wall of the fixed shell (18), and one end of the worm (20) is bolted to a crank (21).

3. A hardness tester for testing the structure of a screw extruder according to claim 1, characterized in that: A first sliding groove (22) is provided on the surface of the gear rod (8), a first sliding block (23) is slidably connected inside the first sliding groove (22), and the first sliding block (23) is bolted to the inner wall of the loading platform (4).

4. A hardness tester for testing the structure of a screw extruder according to claim 1, characterized in that: A second sliding block (24) is bolted to the surface of the sliding block (15), a second sliding groove (25) is slidably connected to the surface of the second sliding block (24), and the second sliding groove (25) is opened on the inner wall of the protective shell (12).

5. A hardness tester for testing the structure of a screw extruder according to claim 1, characterized in that: A rubber pad (26) is bonded to the surface of the pressing plate (9).

6. A hardness tester for testing the structure of a screw extruder according to claim 2, characterized in that: A fixing plate (27) is rotatably sleeved on the surface of the crank (21), and the fixing plate (27) is bolted to the bottom of the loading platform (4).

7. A hardness tester for testing the structure of a screw extruder according to claim 1, characterized in that: The brush (17) is made of nylon fiber.

8. A hardness tester for testing the structure of a screw extruder according to claim 1, characterized in that: The bottom of the hardness tester body (1) is bolted with a foot (28).

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