Microcomputer-controlled pipe ring stiffness testing machine

Abstract

The utility model discloses a microcomputer-controlled pipe ring stiffness testing machine which comprises a base, a control mechanism is arranged at the upper end of the base and comprises a supporting column fixedly connected to the upper end of the base, a supporting ring is fixedly connected to the outer side of the supporting column, a spring is connected to the upper side, close to the supporting ring, of the outer side of the supporting column in a sleeved mode, and the supporting ring is fixedly connected to the outer side of the supporting column. A sliding ring is slidably connected to the upper side, close to the spring, of the outer side of the supporting column, and a lower pressing plate is slidably connected to the upper side, close to the sliding ring, of the outer side of the supporting column. According to the microcomputer-controlled pipe ring stiffness testing machine disclosed by the utility model, the lower threaded ring is screwed to move downwards along the supporting column, and the mounting plate moves downwards along with the lower threaded ring, so that the distance between the contact block and a pipe becomes closer and closer; the purpose of conveniently reducing the stroke of the hydraulic cylinder pushing the contact block to move downwards is achieved, and then workers can rapidly test the rigidity of pipes of the same batch.

Description

Technical Field

[0001] This utility model relates to the field of stiffness testing machine technology, and in particular to a microcomputer-controlled pipe ring stiffness testing machine. Background Technology

[0002] A ring stiffness testing machine is a device used to test the ring stiffness of pipes. It collects test values ​​by compressing a ring-shaped material with a press, and determines the ring stiffness using the force and deformation values ​​measured during constant-rate deformation of the pipe. The pipe sample is placed horizontally, and the compression speed of the plates is determined according to the pipe diameter. Pressure is applied to the sample perpendicularly using two parallel plates.

[0003] Traditional microcomputer-controlled pipe ring stiffness testing machines have some drawbacks. In actual use, when the pressure plate presses down on the pipe, the diameter of the pipe is affected, and the diameter of each batch of pipes tested is different. The stroke of the pressure plate also varies, which leads to a longer testing time when testing smaller diameter pipes, making it inconvenient for workers to test the pipes. Utility Model Content

[0004] The main objective of this invention is to provide a microcomputer-controlled pipe ring stiffness testing machine, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A microcomputer-controlled pipe ring stiffness testing machine includes a base, a control mechanism at the upper end of the base, and a support column fixedly connected to the upper end of the base. A support ring is fixedly connected to the outer side of the support column. A spring is sleeved on the outer side of the support column near the upper side of the support ring. A sliding ring is slidably connected to the outer side of the support column near the upper side of the spring. A lower pressure plate is slidably connected to the outer side of the support column near the upper side of the sliding ring. A lower threaded ring is threadedly connected to the outer side of the support column near the upper side of the lower pressure plate. A mounting plate is slidably connected to the outer side of the support column near the upper side of the lower threaded ring. An upper threaded ring is threadedly connected to the outer side of the support column near the upper side of the mounting plate. A hydraulic cylinder is fixedly connected to the lower end of the mounting plate, and a contact block is fixedly connected to the lower end of the lower pressure plate.

[0007] Preferably, a placement seat is fixedly connected to the upper end of the base near the support column, the upper end of the placement seat has a placement groove, and a stabilizing frame is fixedly connected to the upper end of the support column.

[0008] Preferably, the lower end of the spring is fixedly connected to the upper end of the support ring, the upper end of the spring is fixedly connected to the lower end of the sliding ring, the upper end of the lower threaded ring is in contact with the side of the lower end of the mounting plate near the hydraulic cylinder, and the lower end of the upper threaded ring is in contact with the upper end of the mounting plate.

[0009] Preferably, the telescopic end of the lower end of the hydraulic cylinder is installed at the upper end of the lower pressure plate, the contact block is located above the placement seat, and the sliding ring is located below the lower pressure plate.

[0010] Preferably, a support frame is fixedly connected to the upper end of the base near the front side of the support column, a top plate is fixedly connected to the upper end of the support frame, and a crossbar is fixedly connected to the inner side of the support frame.

[0011] Preferably, a stabilizing rod is fixedly connected to one end of the support frame, the lower end of the top plate is fixedly connected to the upper end of the stabilizing frame near the rear side of the support frame, and the lower end of the stabilizing rod is fixedly connected to the upper end of the base near the support frame.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By twisting the lower threaded ring, the lower threaded ring moves downward along the support column, and the mounting plate moves downward with the lower threaded ring, bringing the contact block and the pipe closer together. This reduces the stroke required for the hydraulic cylinder to push the contact block downward, thus helping workers to quickly test the stiffness of the same batch of pipes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a microcomputer-controlled pipe ring stiffness testing machine according to the present invention.

[0015] Figure 2 This is a schematic diagram of the control mechanism of a microcomputer-controlled pipe ring stiffness testing machine according to the present invention.

[0016] Figure 3 This is a partial structural diagram of the control mechanism of a microcomputer-controlled pipe ring stiffness testing machine according to the present invention;

[0017] Figure 4 This utility model relates to a microcomputer-controlled pipe ring stiffness testing machine. Figure 2 Enlarged structural diagram of section A.

[0018] In the diagram: 1. Base; 2. Support frame; 3. Top plate; 4. Crossbar; 5. Stabilizing bar; 6. Control mechanism; 61. Support column; 62. Support ring; 63. Spring; 64. Sliding ring; 65. Lower pressure plate; 66. Lower threaded ring; 67. Mounting plate; 68. Upper threaded ring; 69. Hydraulic cylinder; 610. Contact block; 611. Placement seat; 612. Placement slot; 613. Stabilizing frame. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figure 1-4 As shown, a microcomputer-controlled pipe ring stiffness testing machine includes a base 1. A control mechanism 6 is provided at the upper end of the base 1. The control mechanism 6 includes a support column 61 fixedly connected to the upper end of the base 1. A support ring 62 is fixedly connected to the outer side of the support column 61. A spring 63 is sleeved on the outer side of the support column 61 near the upper side of the support ring 62. A sliding ring 64 is slidably connected to the outer side of the support column 61 near the upper side of the spring 63. A lower pressure plate 65 is slidably connected to the outer side of the support column 61 near the upper side of the sliding ring 64. A lower threaded ring 66 is threadedly connected to the outer side of the support column 61 near the upper side of the lower pressure plate 65. A mounting plate 67 is slidably connected to the outer side of the support column 61 near the upper side of the lower threaded ring 66. An upper threaded ring 68 is threadedly connected to the outer side of the support column 61 near the upper side of the mounting plate 67. A hydraulic cylinder 69 is fixedly connected to the lower end of the mounting plate 67. A contact block 610 is fixedly connected to the lower end of the lower pressure plate 65.

[0021] In this embodiment, the pipe is placed on the placement groove 612, and the pipes in this batch of tests have the same diameter. Then, the lower threaded ring 66 is screwed down, causing the lower threaded ring 66 to move downward along the support column 61, and the mounting plate 67 to move downward with the lower threaded ring 66. This brings the contact block 610 closer and closer to the pipe. At this time, the upper threaded ring 68 is screwed down, causing the upper threaded ring 68 to move along the support column 61 closer to the mounting plate 67, so that the upper threaded ring 68 contacts the mounting plate 67. At this time, the height of the hydraulic cylinder 69 is limited, and the contact block 610 is kept at a small vertical distance from the pipe. Then, the hydraulic cylinder 69 is activated, which pushes the lower pressure plate 65 downward along the support column 61, so that the contact block 610 contacts the pipe and the contact block 610 slowly moves downward to perform a stiffness test on the pipe. By twisting the lower threaded ring 66, the lower threaded ring 66 moves downward along the support column 61, and the mounting plate 67 moves downward with the lower threaded ring 66, so that the distance between the contact block 610 and the pipe gets closer and closer. This can reduce the stroke of the hydraulic cylinder 69 pushing the contact block 610 downward, and thus help workers quickly test the stiffness of the same batch of pipes.

[0022] Specifically, a placement seat 611 is fixedly connected to the upper end of the base 1 near the support column 61. The upper end of the placement seat 611 has a placement groove 612. A stabilizing frame 613 is fixedly connected to the upper end of the support column 61. The lower end of the spring 63 is fixedly connected to the upper end of the support ring 62. The upper end of the spring 63 is fixedly connected to the lower end of the sliding ring 64. The upper end of the lower threaded ring 66 is in contact with the lower end of the mounting plate 67 near the hydraulic cylinder 69. The lower end of the upper threaded ring 68 is in contact with the upper end of the mounting plate 67. The telescopic end of the lower end of the hydraulic cylinder 69 is installed at the upper end of the lower pressure plate 65. The contact block 610 is located above the placement seat 611, and the sliding ring 64 is located below the lower pressure plate 65.

[0023] In this embodiment, a support frame 2 is fixedly connected to the upper end of the base 1 near the front side of the support column 61. A top plate 3 is fixedly connected to the upper end of the support frame 2. A crossbar 4 is fixedly connected to the inner side of the support frame 2. A stabilizing rod 5 is fixedly connected to one end of the support frame 2. The lower end of the top plate 3 is fixedly connected to the upper end of the stabilizing frame 613 near the rear side of the support frame 2. The lower end of the stabilizing rod 5 is fixedly connected to the upper end of the base 1 near the side of the support frame 2.

[0024] Specifically, when the lower pressure plate 65 contacts the sliding ring 64, the sliding ring 64 compresses the spring 63, and under the elastic action of the spring 63, the lower pressure plate 65 slowly moves downward.

[0025] Working principle:

[0026] In use, first place the base 1 in the designated position, then take out the pipe and place it on the placement slot 612. All pipes in this batch of tests should have the same diameter. Then, tighten the lower threaded ring 66, causing it to move downwards along the support column 61, and the mounting plate 67 to follow the lower threaded ring 66 downwards, bringing the contact block 610 closer to the pipe. Next, tighten the upper threaded ring 68, moving it along the support column 61 towards the mounting plate 67, until the upper threaded ring 68 contacts the mounting plate 67. At this point, limit the height of the hydraulic cylinder 69, maintaining a small vertical distance between the contact block 610 and the pipe. Then, activate the hydraulic cylinder 69, causing the hydraulic cylinder 610 to... 9. Push the lower pressure plate 65 downward along the support column 61 and make the lower pressure plate 65 contact the sliding ring 64, which in turn squeezes the spring 63. Under the elastic action of the spring 63, the lower pressure plate 65 slowly moves downward, so that the contact block 610 contacts the pipe and the contact block 610 slowly moves downward to perform a stiffness test on the pipe. By twisting the lower threaded ring 66, the lower threaded ring 66 moves downward along the support column 61, and the mounting plate 67 moves downward with the lower threaded ring 66, so that the distance between the contact block 610 and the pipe gets closer and closer. This can reduce the stroke of the hydraulic cylinder 69 pushing the contact block 610 downward, and thus help workers quickly test the stiffness of the same batch of pipes.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A microcomputer-controlled pipe ring stiffness testing machine, comprising a base (1), characterized in that: A control mechanism (6) is provided at the upper end of the base (1). The control mechanism (6) includes a support column (61) fixedly connected to the upper end of the base (1). A support ring (62) is fixedly connected to the outer side of the support column (61). A spring (63) is sleeved on the outer side of the support column (61) near the upper side of the support ring (62). A sliding ring (64) is slidably connected to the outer side of the support column (61) near the upper side of the spring (63). A lower pressure plate (65) is connected to the support column (61). A lower threaded ring (66) is threadedly connected to the upper side of the support column (61) near the lower pressure plate (65). A mounting plate (67) is slidably connected to the upper side of the support column (61) near the lower threaded ring (66). An upper threaded ring (68) is threadedly connected to the upper side of the support column (61) near the mounting plate (67). A hydraulic cylinder (69) is fixedly connected to the lower end of the mounting plate (67). A contact block (610) is fixedly connected to the lower end of the lower pressure plate (65).

2. The microcomputer-controlled pipe ring stiffness testing machine according to claim 1, characterized in that: A placement seat (611) is fixedly connected to the upper end of the base (1) near the support column (61). A placement groove (612) is opened at the upper end of the placement seat (611). A stabilizing frame (613) is fixedly connected to the upper end of the support column (61).

3. The microcomputer-controlled pipe ring stiffness testing machine according to claim 2, characterized in that: The lower end of the spring (63) is fixedly connected to the upper end of the support ring (62), the upper end of the spring (63) is fixedly connected to the lower end of the sliding ring (64), the upper end of the lower threaded ring (66) is in contact with the side of the lower end of the mounting plate (67) near the hydraulic cylinder (69), and the lower end of the upper threaded ring (68) is in contact with the upper end of the mounting plate (67).

4. A microcomputer-controlled pipe ring stiffness testing machine according to claim 2, characterized in that: The telescopic end of the lower end of the hydraulic cylinder (69) is installed at the upper end of the lower pressure plate (65), the contact block (610) is located above the placement seat (611), and the sliding ring (64) is located below the lower pressure plate (65).

5. A microcomputer-controlled pipe ring stiffness testing machine according to claim 1, characterized in that: A support frame (2) is fixedly connected to the upper end of the base (1) near the front side of the support column (61). A top plate (3) is fixedly connected to the upper end of the support frame (2). A crossbar (4) is fixedly connected to the inner side of the support frame (2).

6. A microcomputer-controlled pipe ring stiffness testing machine according to claim 5, characterized in that: One end of the support frame (2) is fixedly connected to a stabilizing rod (5), the lower end of the top plate (3) is fixedly connected to the upper end of the stabilizing frame (613) near the rear side of the support frame (2), and the lower end of the stabilizing rod (5) is fixedly connected to the upper end of the base (1) near the side of the support frame (2).

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