Hydraulic tensile testing device

Abstract

The utility model relates to the technical field of stretching machines, in particular to a hydraulic stretching testing device which comprises a machine table, a stretching mechanism is arranged above the machine table, a fixing seat is further fixed on the machine table, a connecting mechanism is further arranged above the fixing seat and at the end of the stretching mechanism, and the connecting mechanism is used for being connected with a pipeline. Wherein a plurality of supporting legs are fixed to the bottom of the machine table, a containing groove is formed in the lower end of the machine table, after the arranged moving mechanism is controlled by the driving assembly, an original supporting mode of the supporting legs is replaced by the moving mechanism, so that the effect that the whole machine table can move is achieved, and therefore the whole equipment can be conveniently moved; meanwhile, a connecting mechanism used for being connected with a pipeline is further arranged in the pipeline connecting device, the connecting mechanism is fixed in a detachable connecting mode, the assembling convenience is further optimized, the overall structural design is simple, and the pipeline connecting device is more flexible and easy to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of stretching machines, in particular to a hydraulic stretching test device. Background Art

[0002] A flexible hybrid pipe, also known as a flexible composite high-pressure transmission pipe, is a pipe made of polymer composite materials, which has the characteristics of high strength, high pressure resistance, corrosion resistance, scale resistance, small friction coefficient, good heat preservation, good flexibility and long service life. This kind of pipe is mainly used in the oil and gas industry and can be used for various purposes such as oil transportation, gas transportation, water transportation and methanol injection.

[0003] Hydraulic stretching test is a commonly used test method in the field of petrochemical equipment to evaluate the tensile properties and strength of materials. In the hydraulic stretching test, the flexible hybrid pipe is placed in a stretching machine, and a force is applied through a hydraulic system to stretch the sample, while measuring the stress and strain during the stretching process. Through these data, important parameters such as the tensile strength, yield strength and fracture strength of the flexible hybrid pipe can be determined.

[0004] However, due to the machine table design of most stretching machines, generally only a single foot is used for support adjustment. In the actual application process, it is often necessary to move the position of the stretching machine. Since the structure design of the single foot cannot be moved, external handling equipment needs to be used, which causes certain inconvenience in actual use. Based on this, in order to further optimize the applicability of the existing stretching machine, we propose a hydraulic stretching test device. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages in the prior art that due to the structure design of the single foot, it cannot be moved, so external handling equipment needs to be used, which causes certain inconvenience in actual use, and a hydraulic stretching test device is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] Design a hydraulic stretching test device, including a machine table, a stretching mechanism is arranged above the machine table, a fixed seat is also fixed on the machine table, and a connecting mechanism is also arranged above the fixed seat and at the end of the stretching mechanism, and the connecting mechanism is used to connect the pipeline;

[0008] Wherein, a plurality of feet are fixed at the bottom of the machine table, a receiving groove is opened at the lower end of the machine table, a moving mechanism and a driving component are arranged inside the receiving groove, and the driving component is used to drive the moving mechanism to move up and down inside the receiving groove.

[0009] Further, the stretching mechanism includes a fixing frame fixed to the machine table, a hydraulic cylinder is installed on the top of the fixing frame, and one of the connecting mechanisms is fixed to the shaft end of the hydraulic cylinder.

[0010] Further, the connecting mechanism includes two oppositely arranged connecting seats, the two connecting seats are connected by fasteners, and a connecting ring is further arranged on the top of the connecting seat;

[0011] A shaft rod is fixed on the top of the fixed seat, the two connecting seats are clamped on the outside of the shaft rod, a limiting rod is fixed on the inner side of the connecting seat, and a matching hole inserted with the limiting rod is opened on the outside of the shaft rod.

[0012] Further, the moving mechanism includes a roller seat, a plurality of wheel sets are fixedly installed at the bottom of the roller seat, and a plurality of guide posts are further fixed on the top of the roller seat, and a positioning plate slidable with the guide posts is fixed inside the receiving groove.

[0013] Further, the driving component is a lifting hydraulic cylinder, one end of the lifting hydraulic cylinder is fixedly connected to the inner wall of the receiving groove, and the other end is detachably connected to the roller seat.

[0014] Further, an adapter seat is fixed at the other end of the lifting hydraulic cylinder, a plurality of insertion rods passing through the roller seat are fixed at the bottom of the adapter seat, and positioning beads for limiting are embedded on the outside of the insertion rods.

[0015] The hydraulic stretching test device proposed by the present utility model has the beneficial effects that: after the moving mechanism provided in the present utility model is controlled by the driving component, the support mode of the original feet is replaced by the moving mechanism, so as to achieve the effect that the entire machine table can be moved, so that the convenient movement of the entire device can be realized, the operability is improved, and at the same time, a connecting mechanism for connecting pipes is also provided in the present utility model, and the connecting mechanism is fixed by a detachable connection method, further optimizing the convenience of assembly, and the overall structural design is simple, making the device more flexible and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the present utility model;

[0017] Figure 2 is a schematic structural view of the shaft rod of the present utility model;

[0018] Figure 3 is a schematic structural view of the driving component of the present utility model;

[0019] Figure 4 is a schematic structural view of the roller seat of the present utility model.

[0020] In the figure: 1. Machine platform; 11. Support feet; 12. Accommodation groove; 13. Positioning plate; 2. Tensile mechanism; 21. Fixed frame; 22. Hydraulic cylinder; 3. Fixed seat; 31. Shaft rod; 32. Adaptation hole; 4. Connection mechanism; 41. Connection seat; 42. Connection ring; 43. Limit rod; 5. Moving mechanism; 51. Roller seat; 52. Wheel set; 53. Guide post; 6. Driving assembly; 61. Adaptation seat; 62. Insert rod; 63. Positioning bead. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Refer to Figures 1-4 For an embodiment of the present invention, a hydraulic tensile testing device is disclosed. The testing device includes a machine platform 1. A tensile mechanism 2 is arranged above the machine platform 1. The machine platform 1 is also fixed with a fixed seat 3. A connection mechanism 4 is also arranged above the fixed seat 3 and at the end of the tensile mechanism 2. The connection mechanism 4 is used to connect pipelines.

[0023] Among them, a plurality of support feet 11 are fixed at the bottom of the machine platform 1. An accommodation groove 12 is opened at the lower end of the machine platform 1. A moving mechanism 5 and a driving assembly 6 are arranged inside the accommodation groove 12. The driving assembly 6 is used to drive the moving mechanism 5 to move up and down inside the accommodation groove 12.

[0024] In some embodiments, the tensile mechanism 2 in the present invention includes a fixed frame 21 fixed on the machine platform 1. A hydraulic cylinder 22 is installed at the top of the fixed frame 21. Among them, one connection mechanism 4 is fixed at the shaft end of the hydraulic cylinder 22, and the other connection mechanism 4 is fixed on the fixed seat 3. By fixing the pipeline between the two connection mechanisms 4 and driving the upper connection mechanism 4 to move by the hydraulic cylinder 22, the stretching of the pipeline is realized. The driving pressure of the hydraulic cylinder 22 can be detected by means of a sensor unit to realize the detection of the tensile force. This method is the prior art and will not be elaborated here.

[0025] Furthermore, in this embodiment, the connection mechanism 4 includes two relatively arranged connection seats 41. The two connection seats 41 are connected by fasteners. Preferably, the fasteners in this embodiment are set as bolts. A connection ring 42 is also arranged at the top of the connection seat 41. The arranged connection ring 42 is used to connect the pipeline. Specifically, a hook can be fixed at the end of the pipeline, and the hook is hung in the above-mentioned connection ring 42 to achieve the effect of convenient connection and disassembly.

[0026] A shaft rod 31 is fixed to the top of the fixed seat 3. Two connecting seats 41 are clamped outside the shaft rod 31. A limiting rod 43 is fixed to the inner side of the connecting seat 41. An adaptor hole 32 into which the limiting rod 43 is inserted is formed on the outside of the shaft rod 31. Through the design of the limiting rod 43 and the adaptor hole 32, the connection stability between the two connecting seats 41 can be improved, and at the same time, a limiting effect can be achieved to avoid the problem that the two connecting seats 41 rotate during combination. Secondly, in this embodiment, the two connecting seats 41 are fixed to the shaft end of the hydraulic cylinder 22. Similarly, an adaptor hole 32 can also be formed at the shaft end of the hydraulic cylinder 22 to adapt to the limiting rods 43 on the two connecting seats 41.

[0027] Based on the above embodiment, the moving mechanism 5 includes a roller seat 51. A plurality of wheel sets 52 are fixedly installed at the bottom of the roller seat 51. The wheel sets 52 can be set as universal wheels or directional wheels, or a combination of both. The specific design can be appropriately selected by those skilled in the art and will not be elaborated here. Among them, a plurality of guide posts 53 are further fixed to the top of the roller seat 51. A positioning plate 13 that slides with the guide posts 53 is fixed inside the receiving groove 12. In this embodiment, the design of the guide posts 53 and the positioning plate 13 is used to guide the lifting and moving of the roller seat 51. Four guide posts 53 are provided in this embodiment. Of course, four positioning plates 13 should also be adapted.

[0028] Based on the above embodiment, in this embodiment, the driving component 6 is a lifting hydraulic cylinder. One end of the lifting hydraulic cylinder is fixedly connected to the inner wall of the receiving groove 12, and the other end is detachably connected to the roller seat 51.

[0029] Preferably, in this embodiment, an adaptor seat 61 is fixed to the other end of the lifting hydraulic cylinder. A plurality of insertion rods 62 that penetrate the roller seat 51 are fixed to the bottom of the adaptor seat 61. A positioning bead 63 for limiting is embedded on the outside of the insertion rod 62. The structure of the positioning bead 63 is a prior art and will not be elaborated here. In this embodiment, by fixing the lifting hydraulic cylinder to the adaptor seat 61, since the adaptor seat 61 and the roller seat 51 are detachably connected, the entire adaptor seat 61 can be disassembled. In this way, the entire roller seat 51 can be removed to facilitate the maintenance of each wheel set 52. During disassembly, only the telescopic end of the above-mentioned positioning bead 63 needs to be pressed, which is simple and convenient.

[0030] In summary, after the moving mechanism 5 provided in the present utility model is controlled by the driving component 6, the moving mechanism 5 replaces the original supporting method of the supporting feet 11, so as to achieve the effect that the entire machine table 1 can move. In this way, the convenient movement of the entire device can be realized, and the operability can be improved. At the same time, a connecting mechanism 4 for connecting pipelines is also provided in the present utility model. The connecting mechanism 4 is fixed by a detachable connection method, which further optimizes the convenience of assembly. The overall structural design is simple, making the device more flexible and easy to operate.

[0031] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A hydraulic tensile testing device, comprising a machine (1), characterized in that: A stretching mechanism (2) is arranged above the machine platform (1), a fixing seat (3) is also fixed to the machine platform (1), and a connecting mechanism (4) is also arranged above the fixing seat (3) and at the end of the stretching mechanism (2), and the connecting mechanism (4) is used to connect a pipeline; A plurality of legs (11) are fixed to the bottom of the machine (1), a receiving groove (12) is provided at the lower end of the machine (1), a moving mechanism (5) and a driving component (6) are provided inside the receiving groove (12), and the driving component (6) is used to drive the moving mechanism (5) to move up and down inside the receiving groove (12).

2. The hydraulic tensile testing device according to claim 1, characterized in that: The stretching mechanism (2) comprises a fixing frame (21) fixed on the machine platform (1), a hydraulic cylinder (22) is installed on the top of the fixing frame (21), wherein one of the connecting mechanisms (4) is fixed on the shaft end of the hydraulic cylinder (22).

3. The hydraulic tensile testing device according to claim 1, characterized in that: The connecting mechanism (4) comprises two connecting seats (41) arranged opposite to each other, the two connecting seats (41) are connected by a fastener, and a connecting ring (42) is also arranged on the top of the connecting seat (41); A shaft rod (31) is fixed on the top of the fixing seat (3), the two connecting seats (41) are clamped on the outer side of the shaft rod (31), a limiting rod (43) is fixed on the inner side of the connecting seat (41), and an adapter hole (32) for plugging into the limiting rod (43) is provided on the outer side of the shaft rod (31).

4. The hydraulic tensile testing device according to claim 1, characterized in that: The moving mechanism (5) comprises a roller seat (51), and a plurality of wheel groups (52) are fixedly mounted on the bottom of the roller seat (51), wherein a plurality of guide pillars (53) are also fixed on the top of the roller seat (51), and a positioning plate (13) sliding with the guide pillars (53) is fixed inside the receiving groove (12).

5. The hydraulic tensile testing device according to claim 4, characterized in that: The driving component (6) is a lifting hydraulic cylinder, one end of which is fixedly connected to the inner wall of the accommodating groove (12), and the other end of which is detachably connected to the roller seat (51).

6. The hydraulic tensile testing device according to claim 5, characterized in that: An adapter seat (61) is fixed at the other end of the lifting hydraulic cylinder, a plurality of insertion rods (62) passing through the roller seat (51) are fixed at the bottom of the adapter seat (61), and positioning glass beads (63) for limiting are embedded on the outer sides of the insertion rods (62).

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