Hydraulic bending testing machine protection device

Abstract

The utility model belongs to the technical field of hydraulic bending testing machines, and particularly relates to a hydraulic bending testing machine protection device which comprises a supporting base, an operation table is fixedly connected to the top of the supporting base, and a hydraulic bending testing mechanism is arranged at the top of the operation table. The adjusting head is rotationally connected to one end of the outer wall of the mounting shell, the adjusting lead screw is rotationally connected to the two ends of the inner wall of the mounting shell, one end of the adjusting lead screw is fixedly connected with one end of the adjusting head, and the threaded sleeves are symmetrically connected to the outer wall of the adjusting lead screw in a threaded and sleeving mode. Therefore, the distance between the two threaded sleeves can be driven to be adjusted, the supporting position is adjusted according to the size of the steel pipe, the clamping plates are symmetrically and fixedly connected to the outer walls of the sliding side plates, the sleeving plates are rotationally connected to the inner walls of the clamping plates, and then under the action of the rotating shafts on the clamping plates, the stability of a steel pipe bending test is improved; and the protection effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic bending testing machines, and in particular relates to a protective device for a hydraulic bending testing machine. Background Art

[0002] In the traditional hydraulic bending test machine design, when the steel pipe sample is subjected to the bending test, the two ends are usually fixed to the two ends of the test machine by special clamps. The core concept of this design is to maintain the stability of the sample during the test and ensure that the applied bending force can be accurately transmitted to the sample, so as to evaluate the performance of the material when subjected to the bending force.

[0003] During the steel pipe bending test, the stress state of the inner and outer diameter surfaces changes, with compressive stress generated on the inside and tensile stress generated on the outside. When the clamping method does not allow the end of the steel pipe to rotate naturally with the bending, additional stress will be generated in the clamping area. These stresses will be superimposed on the stress generated during the bending process, resulting in stress exceeding the material's bearing capacity, thereby causing cracks or fractures.

[0004] In order to solve the above problems, the present application proposes a protection device for a hydraulic bending testing machine. Utility Model Content

[0005] To solve the problems raised in the above background technology. The utility model provides a protection device for a hydraulic bending tester, which can solve the problem that in the steel pipe bending test, the stress state of the inner and outer diameter surfaces changes, compressive stress is generated on the inside, and tensile stress is generated on the outside. When the clamping method does not allow the end of the steel pipe to rotate naturally with the bending, additional stress will be generated in the clamping area. These stresses will be superimposed on the stresses generated during the bending process, resulting in stresses exceeding the bearing capacity of the material, thereby causing cracks or fractures.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protection device for a hydraulic bending test machine, comprising a support base, a top of the support base is fixedly connected to an operating table, and a hydraulic bending test mechanism is arranged on the top of the operating table;

[0007] The hydraulic bending test mechanism includes a supporting side plate, a hydraulic cylinder, a driving rod, a contact head, an adjustment assembly and a supporting assembly. The supporting side plate is fixedly connected to one side of the top of the operating table, the hydraulic cylinder is installed on one side of the supporting side plate, one end of the driving rod is fixedly connected to the output end of the hydraulic cylinder, one side of the contact head is fixedly connected to the other end of the driving rod, the adjustment assembly is arranged on the other side of the top of the operating table, and the supporting assembly is provided with two groups, which are symmetrically arranged on the adjustment assembly.

[0008] As a preferred protective device for a hydraulic bending testing machine of the utility model, the adjustment assembly includes a mounting shell, an adjustment head, an adjustment screw and a threaded sleeve, the mounting shell is fixedly connected to the other side of the top of the operating table, the adjustment head is rotatably connected to one end of the outer wall of the mounting shell, the adjustment screw is rotatably connected to both ends of the inner wall of the mounting shell, and one end of the adjustment screw is fixedly connected to one end of the adjustment head, and the threaded sleeve is symmetrically threadedly sleeved on the outer wall of the adjustment screw.

[0009] As a preferred protective device for a hydraulic bending testing machine of the utility model, the supporting assembly includes a sliding side plate, a clamping plate and a socket plate, the sliding side plate is slidably clamped on one side of the mounting shell, and the inner wall of the sliding side plate is fixedly connected to the outer wall of the threaded sleeve, the clamping plate is symmetrically fixedly connected to the outer wall of the sliding side plate, and the socket plate is rotatably connected to the inner wall of the clamping plate.

[0010] As a preferred protective device for a hydraulic bending testing machine of the utility model, a protective top plate is fixedly connected to the top of the mounting shell.

[0011] As a preferred embodiment of the protective device for a hydraulic bending tester of the utility model, the threads on both sides of the middle end of the adjusting screw rod are in opposite directions.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The mounting shell is fixedly connected to the other side of the top of the operating table, the adjusting head is rotatably connected to one end of the outer wall of the mounting shell, the adjusting screw is rotatably connected to both ends of the inner wall of the mounting shell, and one end of the adjusting screw is fixedly connected to one end of the adjusting head, the threaded sleeve is symmetrically threaded on the outer wall of the adjusting screw, and then the adjusting screw is driven to rotate by rotating the adjusting head, thereby driving the spacing between the two threaded sleeves to be adjusted, so as to adjust the position of the support according to the size of the steel pipe;

[0014] 2. In order to make the supporting position of the steel pipe deflect at a corresponding angle according to the bending angle, the sliding side plate is slidably clamped on one side of the mounting shell, and the inner wall of the sliding side plate is fixedly connected to the outer wall of the threaded sleeve, the clamping plate is symmetrically fixedly connected to the outer wall of the sliding side plate, and the sleeve plate is rotatably connected to the inner wall of the clamping plate, thereby improving the stability of the steel pipe bending test and the protection effect under the action of the rotating shaft on the clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of installing the housing in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the threaded casing in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the hydraulic cylinder in the utility model.

[0020] In the figure:

[0021] 1. Support base; 2. Operating table; 3. Hydraulic bending test mechanism; 31. Support side plate; 32. Hydraulic cylinder; 33. Drive rod; 34. Contact head; 35. Adjustment assembly; 351. Installation shell; 3511. Protective top plate; 352. Adjustment head; 353. Adjustment screw; 354. Threaded sleeve; 36. Support assembly; 361. Sliding side plate; 362. Clamping plate; 363. Socket plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 As shown,

[0024] A protection device for a hydraulic bending test machine comprises a support base 1. An operating table 2 is fixedly connected to the top of the support base 1. A hydraulic bending test mechanism 3 is arranged on the top of the operating table 2.

[0025] In this embodiment: Under normal circumstances, during the steel pipe bending test, the stress state of the inner and outer diameter surfaces changes, compressive stress is generated on the inside, and tensile stress is generated on the outside. When the clamping method does not allow the end of the steel pipe to rotate naturally with the bending, additional stress will be generated in the clamping area. These stresses will be superimposed on the stresses generated during the bending process, resulting in stresses exceeding the bearing capacity of the material, thereby causing cracks or fractures. Then, by adding a hydraulic bending test mechanism 3, the position of the support can be adjusted according to the size of the steel pipe. At the same time, the position of the support can be deflected with the bending angle to reduce the risk of fracture and play a protective role.

[0026] like Figure 1 - Figure 3 As shown,

[0027] Based on the existing hydraulic bending test machine protection device, it is possible to solve the problem that during the steel pipe bending test, the stress state of the inner and outer diameter surfaces changes, compressive stress is generated on the inside, and tensile stress is generated on the outside. When the clamping method does not allow the end of the steel pipe to rotate naturally with the bending, additional stress will be generated in the clamping area. These stresses will be superimposed on the stresses generated during the bending process, resulting in stresses exceeding the material's bearing capacity, thereby causing cracks or fractures.

[0028] More specifically:

[0029] In combination with the above content, in order to adjust the position of the support according to the size of the steel pipe, and at the same time the position of the support can be deflected with the bending angle to reduce the risk of fracture and play a protective role, a hydraulic bending test mechanism 3 is arranged on the top of the operating table 2, the hydraulic bending test mechanism 3 includes a supporting side plate 31, a hydraulic cylinder 32, a driving rod 33, a contact head 34, an adjustment assembly 35 and a support assembly 36, the supporting side plate 31 is fixedly connected to one side of the top of the operating table 2, the hydraulic cylinder 32 is installed on one side of the supporting side plate 31, one end of the driving rod 33 is fixedly connected to the output end of the hydraulic cylinder 32, one side of the contact head 34 is fixedly connected to the other end of the driving rod 33, the adjustment assembly 35 is arranged on the other side of the top of the operating table 2, and the support assembly 36 is provided with two groups, and is symmetrically arranged on the adjustment assembly 35.

[0030] In this embodiment: In order to ensure the stability during the steel pipe bending test, the supporting side plate 31 is fixedly connected to one side of the top of the operating table 2, the hydraulic cylinder 32 is installed on one side of the supporting side plate 31, one end of the driving rod 33 is fixedly connected to the output end of the hydraulic cylinder 32, one side of the contact head 34 is fixedly connected to the other end of the driving rod 33, the adjusting component 35 is arranged on the other side of the top of the operating table 2, and the supporting component 36 is provided with two groups and symmetrically arranged on the adjusting component 35, and then the supporting position of the end of the steel pipe is adjusted by the adjusting component 35, and then the hydraulic cylinder 32 is started to extrude and bend the steel pipe through the contact head 34 under the action of the driving rod 33, and the operation is more convenient.

[0031] To be more specific: the adjustment component 35 includes a mounting shell 351, an adjustment head 352, an adjustment screw 353 and a threaded sleeve 354. The mounting shell 351 is fixedly connected to the other side of the top of the operating table 2, the adjustment head 352 is rotatably connected to one end of the outer wall of the mounting shell 351, the adjustment screw 353 is rotatably connected to the two ends of the inner wall of the mounting shell 351, and one end of the adjustment screw 353 is fixedly connected to one end of the adjustment head 352, and the threaded sleeve 354 is symmetrically threadedly sleeved on the outer wall of the adjustment screw 353.

[0032] In this embodiment: In order to adjust the position of the support according to the size of the steel pipe, the mounting shell 351 is fixedly connected to the other side of the top of the operating table 2, the adjusting head 352 is rotatably connected to one end of the outer wall of the mounting shell 351, the adjusting screw 353 is rotatably connected to the two ends of the inner wall of the mounting shell 351, and one end of the adjusting screw 353 is fixedly connected to one end of the adjusting head 352, and the threaded sleeve 354 is symmetrically threaded on the outer wall of the adjusting screw 353, and then he drives the adjusting screw 353 to rotate by rotating the adjusting head 352, thereby driving the spacing between the two threaded sleeves 354 to be adjusted, thereby adjusting the position of the support according to the size of the steel pipe.

[0033] To be more specific: the support assembly 36 includes a sliding side plate 361, a clamping plate 362 and a socket plate 363, the sliding side plate 361 is slidably clamped on one side of the mounting shell 351, and the inner wall of the sliding side plate 361 is fixedly connected to the outer wall of the threaded sleeve 354, the clamping plate 362 is symmetrically fixedly connected to the outer wall of the sliding side plate 361, and the socket plate 363 is rotatably connected to the inner wall of the clamping plate 362.

[0034] In this embodiment: in order to make the supporting position of the steel pipe deflect at a corresponding angle according to the bending angle, the sliding side plate 361 is slidably clamped on one side of the mounting shell 351, and the inner wall of the sliding side plate 361 is fixedly connected to the outer wall of the threaded sleeve 354, the clamping plate 362 is symmetrically fixedly connected to the outer wall of the sliding side plate 361, and the sleeve plate 363 is rotatably connected to the inner wall of the clamping plate 362, and then under the action of the rotating shaft on the clamping plate 362, the stability of the steel pipe bending test is improved, and the protection effect is improved.

[0035] It should be understood that a protective top plate 3511 is fixedly connected to the top of the mounting housing 351 , and the thread directions of the two sides of the middle end of the adjusting screw rod 353 are opposite.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A protection device for a hydraulic bending test machine, comprising a support base (1), the top of the support base (1) being fixedly connected to an operating table (2), characterized in that: A hydraulic bending test mechanism (3) is provided on the top of the operating platform (2); The hydraulic bending test mechanism (3) comprises a supporting side plate (31), a hydraulic cylinder (32), a driving rod (33), a contact head (34), an adjustment assembly (35) and a supporting assembly (36); the supporting side plate (31) is fixedly connected to one side of the top of the operating table (2); the hydraulic cylinder (32) is installed on one side of the supporting side plate (31); one end of the driving rod (33) is fixedly connected to the output end of the hydraulic cylinder (32); one side of the contact head (34) is fixedly connected to the other end of the driving rod (33); the adjustment assembly (35) is arranged on the other side of the top of the operating table (2); and two groups of the supporting assembly (36) are arranged and are symmetrically arranged on the adjustment assembly (35).

2. The protection device for the hydraulic bending test machine according to claim 1 is characterized in that: The adjustment assembly (35) comprises a mounting shell (351), an adjustment head (352), an adjustment screw (353) and a threaded sleeve (354); the mounting shell (351) is fixedly connected to the other side of the top of the operating table (2); the adjustment head (352) is rotatably connected to one end of the outer wall of the mounting shell (351); the adjustment screw (353) is rotatably connected to two ends of the inner wall of the mounting shell (351); one end of the adjustment screw (353) is fixedly connected to one end of the adjustment head (352); and the threaded sleeve (354) is symmetrically threadedly sleeved on the outer wall of the adjustment screw (353).

3. The protection device for the hydraulic bending test machine according to claim 2 is characterized in that: The support assembly (36) includes a sliding side plate (361), a clamping plate (362) and a sleeve plate (363); the sliding side plate (361) is slidably clamped on one side of the mounting shell (351), and the inner wall of the sliding side plate (361) is fixedly connected to the outer wall of the threaded sleeve (354); the clamping plate (362) is symmetrically fixedly connected to the outer wall of the sliding side plate (361), and the sleeve plate (363) is rotatably connected to the inner wall of the clamping plate (362).

4. The protection device for the hydraulic bending test machine according to claim 2 is characterized in that: A protective top plate (3511) is fixedly connected to the top of the installation shell (351).

5. The protection device for the hydraulic bending test machine according to claim 2 is characterized in that: The screw threads on both sides of the middle end of the adjusting screw rod (353) are in opposite directions.

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