A high temperature oil tank sample clamping device

Abstract

The utility model discloses a high temperature oil groove sample clamping device, including high temperature oil groove main part, the bottom of high temperature oil groove main part is provided with lifting assembly, the top of lifting assembly is provided with test product rack, the test product rack includes the support component of installation in the top of lifting assembly, be provided with a plurality of clamping parts on the support component for clamping test product, the utility model discloses design structure is reasonable through installing lifting assembly and support component in the inside of high temperature oil groove main part, then install clamping part on the support component, through clamping test product piece of part, then through lifting assembly and drive test product piece downward movement and immerse in oil, solve the mode of the copper wire binding and putting in and the cover clamping of existing, not only inconveniently clamping and easy to fall off.

Description

Technical Field

[0001] This utility model relates to the technical field of cable testing devices, specifically a high-temperature oil tank sample clamping device. Background Technology

[0002] High-temperature oil baths are primarily used for tensile testing of cable sheaths after immersion in mineral oil. They simulate an oily environment, where the cable sheath sample is immersed in the high-temperature oil bath for a specified time before the tensile test is conducted, thus determining the impact of this environment on the cable sheath. The sheath sample must be fully and completely immersed in the oil bath to ensure environmental equilibrium and reliable tensile data. Therefore, immersion in mineral oil is a crucial environmental condition before the sheath tensile test; ensuring the sample remains firmly attached and that immersion is thorough is key.

[0003] Currently, high-temperature oil baths are not equipped with special clamps for holding samples. The operator must use a copper wire to bind one end of the sample before placing it in the oil bath, and use a cover plate to hold the other end. Figure 1 As shown, this not only makes clamping inconvenient but also fails to guarantee the sample's stability, potentially causing it to fall to the bottom of the oil tank and posing a risk of burns to personnel. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a high-temperature oil tank sample clamping device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A high-temperature oil tank sample clamping device includes a high-temperature oil tank body, a lifting assembly is provided at the bottom of the high-temperature oil tank body, and a sample placement rack is provided at the top of the lifting assembly. The sample placement rack includes a support component installed on top of the lifting assembly, and the support component is provided with several clamping parts for clamping the sample.

[0006] Furthermore, the lifting assembly includes a fixed base, the bottom of which is fixedly connected to the bottom of the high-temperature oil tank body, a lifting structure is installed on the top of the fixed base, and a driving assembly is provided at the bottom of the lifting structure for driving the lifting structure to move.

[0007] Furthermore, the lifting structure includes an external threaded cylinder, the bottom of which is rotatably connected to the fixed base. An internal threaded cylinder is threadedly connected to the outer wall of the external threaded cylinder. A limiting structure is also provided on the internal threaded cylinder to limit the rotation of the internal threaded cylinder, so that the rotation of the external threaded cylinder drives the internal threaded cylinder to move up and down.

[0008] Furthermore, the limiting structure includes a limiting sleeve, the outer wall of which is rotatably connected to the inner wall of the external threaded cylinder, the bottom of which is fixedly connected to the fixed seat, and an elliptical rod slidably connected to the inner wall of the limiting sleeve, the top of which is fixedly connected to the top of the internal threaded cylinder, for limiting the rotation of the internal threaded cylinder.

[0009] Furthermore, the drive assembly includes a worm gear with a central opening. The inner wall of the worm gear is fixedly sleeved on one end of the external threaded cylinder near the bottom. The outer side of the worm gear meshes with a worm. One end of the worm rotates through the high-temperature oil tank body, and a drive structure is fixedly connected to the end of the worm located outside the high-temperature oil tank body for driving the worm to rotate.

[0010] Furthermore, the support assembly includes a fixing block, the bottom of which is fixedly connected to the top of the internal threaded cylinder. Several connecting mechanisms are fixedly connected to the outside of the fixing block, and several positioning sleeves are detachably provided on the outer wall of each connecting mechanism. A clamping part is fixedly connected to the bottom of the positioning sleeve.

[0011] Furthermore, the connecting mechanism includes a support cylinder, one end of which is fixedly connected to the fixing block. A positioning sleeve is fitted on the outer side of the support cylinder, and a fixing structure is provided inside the support cylinder for positioning the positioning sleeve. The end of the support cylinder furthest from the fixed block is threaded with a support rod, and one end of the support rod is threaded with a fixing ring to restrict the movement of the positioning sleeve.

[0012] Furthermore, the fixing structure includes a bidirectional threaded rod, the end of which is rotatably connected to the inner wall of the support cylinder, the bidirectional threaded rod being threadedly connected to a threaded sleeve on the inner wall of the support cylinder, a connecting rod being rotatably connected to one side of the threaded sleeve, and a support plate being rotatably connected to the end of the connecting rod away from the threaded sleeve. The outer side of the support cylinder is provided with a sliding groove that connects the inside and outside. The inner wall of the sliding groove is slidably connected to the outer wall of the support plate to restrict the rotation of the support plate so that the outer wall of the support plate abuts against the inner wall of the positioning sleeve.

[0013] Compared with existing technologies, this high-temperature oil tank sample clamping device has the following advantages: I. This utility model solves the problem that existing methods of binding with copper wire and clamping with a cover plate are not only inconvenient to clamp but also easy to fall off.

[0014] 2. The clamping part of this utility model is installed on the support cylinder by a positioning ring, and the support cylinder and the fixed ring are connected by a support rod. At the same time, the distance between the support cylinder and the fixed ring is greater than the width of the positioning ring, so that the number of positioning rings and clamping parts can be increased or decreased by utilizing the gap between them after the support rod is removed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an existing clamping method; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a cross-sectional view of the main body of the high-temperature oil tank of this utility model; Figure 4 This is a three-dimensional structural diagram of the fixing ring in this utility model; Figure 5 This is a cross-sectional view of the limiting sleeve in this utility model; Figure 6 In this utility model Figure 5 Enlarged schematic diagram of the structure at point A; Figure 7 This is a cross-sectional view of the support cylinder in this utility model; Figure 8 This is a partial exploded view of the structure of this utility model.

[0016] In the diagram: 1. High-temperature oil tank body; 2. Fixed seat; 3. Worm gear; 4. Drive structure; 5. Worm wheel; 6. Limiting sleeve; 7. Elliptical rod; 8. Internal threaded cylinder; 9. External threaded cylinder; 10. Fixed block; 11. Support cylinder; 12. Bidirectional threaded rod; 13. Support rod; 14. Threaded sleeve; 15. Connecting rod; 16. Support plate; 17. Slide groove; 18. Fixed ring; 19. Positioning sleeve; 20. Clamping part. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] like Figure 1-8As shown, this utility model provides a technical solution: a high-temperature oil tank sample clamping device, including a high-temperature oil tank body 1, a lifting assembly at the bottom of the high-temperature oil tank body 1, and a sample placement rack at the top of the lifting assembly; the sample placement rack includes a support assembly installed on the top of the lifting assembly, and a plurality of clamping parts 20 are provided on the support assembly for clamping the sample; in use, a cover plate is hinged to the top of the high-temperature oil tank body 1 for closing and opening the top opening; when it is necessary to immerse the sample in the oil medium for sufficient heating, the high-temperature oil tank body 1 is first opened, and then... The lifting assembly moves the support assembly to the outside. Then, the staff will clamp the test specimens to be tested onto the support assembly through the clamping part 20 (the clamping part 20 can be a high-temperature resistant spring clamp, a mechanical lever clamp, etc., and is made of high-temperature resistant, oil-resistant and corrosion-resistant materials). Then, the lifting assembly will drive the lifting assembly to move the test specimens downward with the support assembly and immerse them in the oil medium. This allows the test specimens to be fully heated in the oil medium at the specified temperature. This not only facilitates the operation of the staff and ensures that the specimens are securely fixed, but also reduces the risk of burns to the staff and simulates the optimal test environment, reducing test errors.

[0019] The lifting assembly includes a fixed base 2, the bottom of which is fixedly connected to the bottom of the high-temperature oil tank body 1 (e.g., by bolts). A lifting structure is installed on the top of the fixed base 2, and a driving assembly is provided at the bottom of the lifting structure for driving the lifting structure to move. The lifting structure includes an external threaded cylinder 9, the bottom of which is rotatably connected to the fixed base 2. An internal threaded cylinder 8 is threadedly connected to the outer wall of the external threaded cylinder 9. A limiting structure is also provided on the internal threaded cylinder 8 to limit the rotation of the internal threaded cylinder 8 so that the external threaded cylinder 9 can rotate to drive the internal threaded cylinder 8 to move up and down. The limiting structure includes a limiting sleeve 6, the outer wall of which is rotatably connected to the inner wall of the external threaded cylinder 9. The bottom of the limiting sleeve 6 is fixedly connected to the fixed base 2. An elliptical rod 7 is slidably connected to the inner wall of the limiting sleeve 6. The top of the elliptical rod 7 is fixedly connected to the top of the internal threaded cylinder 8 to limit the rotation of the internal threaded cylinder 8.

[0020] In use, the middle part of the fixed base 2 is provided with a hollow structure. The bottom of the external threaded cylinder 9 is rotatably connected to the top of the fixed base 2, while the limiting sleeve 6 extends through the top of the fixed base 2 to the bottom of the hollow structure and is fixedly connected to the fixed base 2. By rotating the external threaded cylinder 9, and at the same time using the limitation that the elliptical rod 7 cannot rotate inside the limiting sleeve 6, the internal threaded cylinder 8 is further limited to not rotate. Thus, the internal threaded cylinder 8 is driven to move up and down on the rotating external threaded cylinder 9 to achieve the purpose of lifting and lowering.

[0021] The drive assembly includes a worm gear 5 with a central opening. The inner wall of the worm gear 5 is fixedly fitted onto the bottom end of the external threaded cylinder 9 (e.g., through interference fit, welding, etc.). The outer side of the worm gear 5 meshes with a worm 3. One end of the worm 3 rotates through the high-temperature oil tank body 1, and the end of the worm 3 located outside the high-temperature oil tank body 1 is fixedly connected to a drive structure 4 for driving the worm 3 to rotate. In use, the drive structure 4 can be a forward and reverse electric motor, which drives the worm 3 to rotate. The worm 3 drives the worm gear 5 to rotate, which in turn drives the external threaded cylinder 9 to rotate, thereby driving the internal threaded cylinder 8 to move up and down. A support seat is also provided on the side of the worm 3 near the fixed seat 2. The support seat is rotatably connected to the worm 3 to improve the stability of the worm 3's rotation. A sealing structure, such as a high-temperature resistant sealing ring, is provided at the connection between the worm 3 and the high-temperature oil tank body 1 to maintain the sealing effect at the connection between the high-temperature oil tank body 1 and the worm 3.

[0022] The support assembly includes a fixing block 10, the bottom of which is fixedly connected to the top of the internal threaded cylinder 8. Several connecting mechanisms are fixedly connected to the outside of the fixing block 10, and several positioning sleeves 19 are detachably provided on the outer wall of each connecting mechanism. A clamping part 20 is fixedly connected to the bottom of the positioning sleeve 19. In use, the fixing block 10 is driven to move up and down by the lifting assembly. The fixing block 10 further drives the connecting mechanism to move. The connecting mechanism drives the clamping part 20 to move up and down through the positioning sleeves 19, thereby driving the sample on the clamping part 20 to rise and fall. The detachable connection between the positioning sleeve 19 and the connecting mechanism allows for the replacement of clamping parts 20 of different specifications to clamp sample pieces of different specifications.

[0023] The connecting mechanism includes a support cylinder 11, one end of which is fixedly connected to a fixing block 10. A positioning sleeve 19 is fitted onto the outer side of the support cylinder 11, and a fixing structure is provided inside the support cylinder 11 for positioning the positioning sleeve 19. A support rod 13 is threadedly connected to the end of the support cylinder 11 away from the fixing block 10, and a fixing ring 18 is threadedly connected to one end of the support rod 13 to restrict the movement of the positioning sleeve 19. In use, six support cylinders 11 are fixedly connected to the outside of the fixing block 10, and each support cylinder 11 is threadedly connected to an end of a fixing ring 18. Support rods 13, one end of each of the six support rods 13 is threaded to the same fixing ring 18, and support cylinder 11 is located between the fixing ring 18 and the fixing block 10. The distance between the support cylinder 11 and the fixing ring 18 is greater than the width of a single positioning sleeve 19, so that the support rods 13 can be removed from the support cylinder 11 by rotating them, and then the positioning sleeves 19 can be slid in the gap between the support cylinder 11 and the fixing ring 18 to remove or install new positioning sleeves 19, thereby increasing or decreasing, or replacing the positioning sleeves 19 and clamping parts 20 on the support cylinder 11.

[0024] The fixing structure includes a bidirectional threaded rod 12, the end of which is rotatably connected to the inner wall of the support cylinder 11. A threaded sleeve 14 is threadedly connected to the inner wall of the support cylinder 11. A connecting rod 15 is rotatably connected to one side of the threaded sleeve 14. A support plate 16 is rotatably connected to the end of the connecting rod 15 away from the threaded sleeve 14. A sliding groove 17 communicating with the inside and outside is opened on the outer side of the support cylinder 11. The inner wall of the sliding groove 17 is slidably connected to the outer wall of the support plate 16 to restrict the rotation of the support plate 16 so that the outer wall of the support plate 16 abuts against the inner wall of the positioning sleeve 19.

[0025] In use, there are three chute 17s arranged in a T-shape, with the central chute 17 opening downwards to facilitate medium flow. The bidirectional threaded rod 12 has two sets of threaded areas, with two threads symmetrically arranged within each set. Each threaded section is threadedly connected to a threaded sleeve 14, driving the two threaded sleeves 14 in each set to move closer or further apart. An opening slot is also provided on the outer side of the threaded sleeve 14, and a rotating shaft is rotatably connected to the opening slot. The outer wall of the rotating shaft is rotatably connected to one end of the connecting rod 15, while the other end of the connecting rod 15 is rotatably connected to another rotating shaft, which is rotatably connected to... On one side of the support plate 16; when it is necessary to release the positioning sleeve 19, the support rod 13 is removed, so that the end of the bidirectional threaded rod 12 located near the fixing ring 18 of the support cylinder 11 is exposed to the outside. The bidirectional threaded rod 12 is rotated through the polygonal hole at this end, while the threaded sleeve 14 is restricted from rotating by the contact of the connecting rod 15 and the support plate 16 with the slide groove 17, thereby driving the threaded sleeves 14 away from each other. Then, the support plate 16 is pulled away from the positioning sleeve 19 by the connecting rod 15, so that the positioning sleeve 19 can slide freely on the outside of the support cylinder 11, and the spacing and number of positioning sleeves 19 can be adjusted.

Claims

1. A high-temperature oil tank sample clamping device, comprising a high-temperature oil tank body (1), characterized in that, The bottom of the high-temperature oil tank body (1) is provided with a lifting assembly, and the top of the lifting assembly is provided with a sample placement rack. The sample placement rack includes a support component installed on the top of the lifting assembly, and the support component is provided with a plurality of clamping parts (20) for clamping the sample; The lifting assembly includes a fixed seat (2), the bottom of which is fixedly connected to the bottom of the high-temperature oil tank body (1), a lifting structure is installed on the top of the fixed seat (2), and a driving assembly is provided at the bottom of the lifting structure for driving the lifting structure to move. The lifting structure includes an external threaded cylinder (9), the bottom of which is rotatably connected to the fixed seat (2). An internal threaded cylinder (8) is threadedly connected to the outer wall of the external threaded cylinder (9). A limiting structure is also provided on the internal threaded cylinder (8) to limit the rotation of the internal threaded cylinder (8) so that the external threaded cylinder (9) can rotate to drive the internal threaded cylinder (8) to move up and down. The drive assembly includes a worm gear (5) with a central opening. The inner wall of the worm gear (5) is fixedly sleeved on one end of the external threaded cylinder (9) near the bottom. The outer side of the worm gear (5) meshes with a worm (3). One end of the worm (3) rotates through the high-temperature oil tank body (1), and the end of the worm (3) located outside the high-temperature oil tank body (1) is fixedly connected to a drive structure (4) for driving the worm (3) to rotate.

2. The high-temperature oil tank sample clamping device according to claim 1, characterized in that: The limiting structure includes a limiting sleeve (6), the outer wall of the limiting sleeve (6) is rotatably connected to the inner wall of the external threaded cylinder (9), the bottom of the limiting sleeve (6) is fixedly connected to the fixed seat (2), and an elliptical rod (7) is slidably connected to the inner wall of the limiting sleeve (6). The top of the elliptical rod (7) is fixedly connected to the top of the internal threaded cylinder (8) to limit the rotation of the internal threaded cylinder (8).

3. The high-temperature oil tank sample clamping device according to claim 1, characterized in that: The support assembly includes a fixing block (10), the bottom of which is fixedly connected to the top of the internal threaded cylinder (8). The fixing block (10) is fixedly connected to a number of connecting mechanisms, and each connecting mechanism is detachably provided with a number of positioning sleeves (19) on its outer wall. The bottom of the positioning sleeve (19) is fixedly connected to a clamping part (20).

4. The high-temperature oil tank sample clamping device according to claim 3, characterized in that: The connecting mechanism includes a support cylinder (11), one end of which is fixedly connected to the fixing block (10). A positioning sleeve (19) is sleeved on the outside of the support cylinder (11), and a fixing structure is provided inside the support cylinder (11) for positioning the positioning sleeve (19). The support cylinder (11) is threaded to a support rod (13) at one end away from the fixed block (10), and a fixed ring (18) is threaded to one end of the support rod (13) to restrict the movement of the positioning sleeve (19).

5. The high-temperature oil tank sample clamping device according to claim 4, characterized in that: The fixing structure includes a bidirectional threaded rod (12), the end of which is rotatably connected to the inner wall of the support cylinder (11). The bidirectional threaded rod (12) is threadedly connected to a threaded sleeve (14) on the inner wall of the support cylinder (11). A connecting rod (15) is rotatably connected to one side of the threaded sleeve (14). A support plate (16) is rotatably connected to the end of the connecting rod (15) away from the threaded sleeve (14). The outer side of the support cylinder (11) is provided with a sliding groove (17) that connects the inside and outside. The inner wall of the sliding groove (17) is slidably connected to the outer wall of the support plate (16) to restrict the rotation of the support plate (16) so that the outer wall of the support plate (16) abuts against the inner wall of the positioning sleeve (19).

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