CN216695830U

CN216695830U - Steel pipe strength test machine

Info

Publication number: CN216695830U
Application number: CN202122597796.1U
Authority: CN
Inventors: 柴军
Original assignee: Guangzhou Nanyue Steel Tube Co ltd
Current assignee: Guangzhou Nanyue Steel Tube Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-06-07
Anticipated expiration: 2031-10-27

Abstract

The utility model belongs to the technical field of steel pipe testing, and particularly relates to a steel pipe strength testing machine, which comprises a movable base, wherein the front end of the movable base is provided with a first fixed channel in a penetrating way, and the first fixed channel is internally detachably provided with a steel pipe, the front end of the movable base is provided with a double-layer movable ring, the front end of the double-layer movable ring is provided with a second fixed channel in a penetrating way, the steel pipe strength testing machine can clamp steel pipes with different diameters and needing to be tested by the mutual matching of the double-layer movable ring, the clamping wheels and other components, can avoid the subsequent pressure resistance strength test from being influenced by the shaking generated during the pressure resistance strength test, when the pressure resistance test is carried out, two groups of test arms in the strength test device can move relatively only by starting the motor to complete the pressure resistance test on the steel pipe, and the problems in the prior art are effectively solved.

Description

Steel pipe strength test machine

Technical Field

The utility model belongs to the technical field of steel pipe testing, and particularly relates to a steel pipe strength testing machine.

Background

Steel pipes are steel with a hollow cross section whose length is much greater than the diameter or circumference. The steel pipe is divided into round, square, rectangular and special-shaped steel pipes according to the shape of the cross section; the steel pipe is divided into a carbon structural steel pipe, a low-alloy structural steel pipe, an alloy steel pipe and a composite steel pipe according to the material quality; the steel pipes are divided into steel pipes for conveying pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment and the like according to the application; the production process includes seamless steel pipe and welded steel pipe, the seamless steel pipe includes hot rolling and cold rolling (drawing), and the welded steel pipe includes straight seam welded steel pipe and spiral seam welded steel pipe. Steel pipes are not only used for transporting fluids and powdery solids, exchanging heat energy, manufacturing mechanical parts and containers, but also are economical steels. The steel pipe is used for manufacturing the building structure net rack, the supporting column and the mechanical support, so that the weight can be reduced, the metal can be saved by 20-40%, and the industrialized mechanized construction can be realized. The steel pipe is used for manufacturing the highway bridge, so that steel can be saved, the construction is simplified, the area of a coating protective layer can be greatly reduced, and the investment and the maintenance cost are saved.

In different use environments, the pressure resistance requirements of the used steel pipes are different, so that the steel pipes need to be subjected to a pressure resistance strength test when the steel pipes are delivered.

The existing steel pipe strength testing device cannot test steel pipes with different diameters when in use, and has single testing diameter and weak applicability.

SUMMERY OF THE UTILITY MODEL

Based on the above background, the present invention is directed to provide a steel pipe strength testing machine, which can clamp steel pipes of different diameters to be tested, and can prevent the steel pipes from shaking during a compressive strength test to affect a subsequent compressive strength test, and during the compressive strength test, the steel pipes are subjected to a relative motion by a testing arm to complete the compressive strength test, so as to effectively solve the problems in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a steel pipe strength test machine, includes movable base, movable base's front end runs through and has seted up first fixed passage, and can dismantle in the first fixed passage and be provided with the steel pipe, movable base's front end is provided with double-deck movable ring, and the front end of double-deck movable ring runs through and has seted up second fixed passage, the activity is provided with four group's centre gripping wheels in the second fixed passage, strength testing arrangement is installed to movable base's rear end, and strength testing arrangement is including fixed base, fixed base's top side activity is provided with two sets of test arms.

As a preferable technical scheme of the utility model, universal wheels are installed at the bottom end of the movable base through bolts.

As a preferable technical scheme of the utility model, the front end of the movable base is provided with a rotating rod, one end of the rotating rod extends into the second fixed channel by penetrating through the outer wall of the double-layer movable ring to be connected with the clamping wheel, the outer wall of the rotating rod is provided with a movable sleeve, and the outer wall of the movable sleeve is movably connected with the inner wall of the double-layer movable ring.

As a preferred technical scheme, the outer wall of the double-layer movable ring is provided with a fixed block, the front end of the movable base is provided with an arc-shaped groove, the inner wall of the arc-shaped groove is connected with the fixed block in a sliding mode, and the outer wall of the fixed block penetrates through the arc-shaped groove and is provided with a fixed bolt.

As a preferred technical scheme of the utility model, a motor is installed on one side of the fixed base, a bidirectional threaded rod is rotatably arranged in an inner cavity of the fixed base, one end of the bidirectional threaded rod penetrates through the fixed base to be connected with a power output end of the motor, and nut seats are movably arranged on two sides of the outer wall of the bidirectional threaded rod.

As a preferred technical scheme of the present invention, a sliding groove is formed through the top end of the fixed base, and two sets of connection sliders are slidably disposed on the inner wall of the sliding groove respectively, the top ends of the two sets of connection sliders are connected to the bottom ends of the two sets of test arms respectively, and the bottom ends of the two sets of connection sliders are connected to the two sets of nut seats respectively.

As a preferred technical scheme of the utility model, inner cavities of the two groups of nut seats are respectively provided with an internal thread groove matched with threads on two sides of the outer wall of the bidirectional threaded rod.

As a preferred technical scheme of the utility model, a fixed frame is arranged at the top end of the fixed base, a sliding rod is arranged on the viewing surface of the fixed frame, two groups of supporting sliding blocks are respectively arranged on the outer wall of the sliding rod in a sliding manner, and the bottom ends of the two groups of supporting sliding blocks are respectively connected with the top ends of the two groups of testing arms.

The utility model has the following beneficial effects:

(1) this kind of steel pipe strength test machine is through the double-deck movable ring with the centre gripping wheel etc. subassembly mutually support down, can carry out the steel pipe that tests to the needs of different diameters and press from both sides tight work, can avoid it to take place to rock and influence follow-up withstand voltage strength test when the withstand voltage strength test, and when carrying out the withstand voltage test, only need starter motor two sets of test arms in the strength test device that can carry out relative motion, accomplish the withstand voltage strength test to the steel pipe, effectively solve the problem that exists among the prior art.

(2) The steel pipe strength testing machine is simple to operate, low in manufacturing cost and suitable for investment and use of small and medium-sized factories and enterprises, the universal wheels at the bottom of the movable base enable the whole testing machine to have certain mobility, and certain convenience is brought to actual testing operation as far as possible.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic rear view of the structure of the present invention;

FIG. 3 is a schematic diagram of a dual layer moving loop configuration of the present invention;

FIG. 4 is a schematic top view of a fixing base structure according to the present invention;

fig. 5 is a schematic view of the nut seat structure of the present invention.

The reference numbers illustrate:

100. a movable base; 101. a first fixed channel; 102. an arc-shaped slot; 110. a universal wheel; 120. a steel pipe; 200. a double-layer movable ring; 201. a second fixed channel; 210. a rotating rod; 220. a movable sleeve; 230. a clamping wheel; 240. a fixed block; 241. Fixing the bolt; 300. a strength testing device; 310. a fixed base; 311. a chute; 320. a test arm; 330. a fixed mount; 340. a slide bar; 350. a support slide block; 400. a motor; 410. a bidirectional threaded rod; 420. a nut seat; 421. an internal thread groove; 430. and connecting the sliding block.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 to 5, the present invention includes a movable base 100, a first fixed channel 101 is formed through the front end of the movable base 100, a steel pipe 120 is detachably disposed in the first fixed channel 101, a double-layer movable ring 200 is disposed at the front end of the movable base 100, a second fixed channel 201 is formed through the front end of the double-layer movable ring 200, four sets of clamping wheels 230 are movably disposed in the second fixed channel 201, a strength testing device 300 is mounted at the rear end of the movable base 100, the strength testing device 300 includes a fixed base 310, and two sets of testing arms 320 are movably disposed at the top side of the fixed base 310;

when the steel pipe 120 is subjected to the strength test, the steel pipe 120 to be tested needs to penetrate through the movable base 100 through the first fixed channel 101, at the moment, the steel pipe 120 is also located in the second fixed channel 201, the four groups of clamping wheels 230 are driven to synchronously move by the movable double-layer movable ring 200, the steel pipe 120 is clamped, and after the steel pipe 120 is fixed, the pressure-resistant strength test is performed on the outer wall of the steel pipe 120 by controlling the two groups of test arms 320.

In the second embodiment, on the basis of the first embodiment, the universal wheels 110 are installed at the bottom end of the movable base 100 through bolts;

the universal wheels 110 of the movable base 100 also provide the whole testing machine with certain mobility, and bring certain convenience to actual testing operation as much as possible.

In the third embodiment, on the basis of the first embodiment, the front end of the movable base 100 is provided with a rotating rod 210, one end of the rotating rod 210 extends into the second fixed channel 201 by penetrating through the outer wall of the double-layer movable ring 200 to be connected with the clamping wheel 230, the outer wall of the rotating rod 210 is provided with a movable sleeve 220, and the outer wall of the movable sleeve 220 is movably connected with the inner wall of the double-layer movable ring 200;

the outer wall of the double-layer movable ring 200 is provided with a fixed block 240, the front end of the movable base 100 is provided with an arc-shaped groove 102, the inner wall of the arc-shaped groove 102 is connected with the fixed block 240 in a sliding manner, and the outer wall of the fixed block 240 penetrates through the arc-shaped groove 102 and is provided with a fixed bolt 241;

when the double-layer movable ring 200 rotates, the rotating rods 210 rotate through the movable sleeve 220, and one end of each of the four groups of rotating rods 210 is connected to the front end of the movable base 100, so that the clamping wheels 230 at the other end of each rotating rod are matched with each other under motion to clamp the steel pipe 120, and the situation that the subsequent strength test result is influenced due to position deviation of the rotating rods during testing is avoided, and the method is suitable for clamping operation of multi-size steel pipes 120;

wherein, when double-deck activity ring 200 rotation to certain angle, each centre gripping wheel 230 will accomplish the clamp of steel pipe 120, and avoid it to take place the mistake to rotate for fixed double-deck activity ring 200, accessible arc wall 102 and fixed block 240's sliding connection, cooperation fixing bolt 241 makes double-deck activity ring 200 fixed, at this in-process, the cooperation of arc wall 102 and fixed block 240 still will give double-deck activity ring 200 certain rotation restriction, avoid it excessively to rotate and lead to the damage of subassemblies such as bull stick 210 and movable sleeve 220.

In the fourth embodiment, on the basis of the first embodiment, a motor 400 is installed at one side of a fixed base 310, a bidirectional threaded rod 410 is rotatably arranged in an inner cavity of the fixed base 310, one end of the bidirectional threaded rod 410 penetrates through the fixed base 310 to be connected with a power output end of the motor 400, and nut seats 420 are movably arranged at two sides of an outer wall of the bidirectional threaded rod 410;

the top end of the fixed base 310 is provided with a sliding groove 311 in a penetrating manner, the inner wall of the sliding groove 311 is provided with two groups of connecting sliding blocks 430 in a sliding manner, the top ends of the two groups of connecting sliding blocks 430 are respectively connected with the bottom ends of the two groups of test arms 320, and the bottom ends of the two groups of connecting sliding blocks 430 are respectively connected with the two groups of nut seats 420;

the inner cavities of the two groups of nut seats 420 are respectively provided with an internal thread groove 421 matched with the threads on the two sides of the outer wall of the bidirectional threaded rod 410;

the top end of the fixed base 310 is provided with a fixed frame 330, the viewing surface of the fixed frame 330 is provided with a sliding rod 340, the outer wall of the sliding rod 340 is respectively provided with two groups of supporting sliding blocks 350 in a sliding manner, and the bottom ends of the two groups of supporting sliding blocks 350 are respectively connected with the top ends of the two groups of testing arms 320;

when the clamping operation of the steel pipe 120 is completed, the compressive strength test of the steel pipe 120 needs to be performed, at this time, the motor 400 can be started, so that the bidirectional threaded rod 410 in the fixed base 310 rotates, when the bidirectional threaded rod 410 rotates, the threads on the two sides of the outer wall of the bidirectional threaded rod respectively match with the inner thread grooves 421 in the two sets of nut seats 420, so that the two sets of nut seats 420 can move relatively, and the two sets of nut seats 420 make the two sets of test arms 320 move relatively through the connecting sliding block 430, so that the compressive strength test of the outer wall of the steel pipe 120 is completed;

under the sliding fit of the sliding rod 340 and the supporting slider 350, the two groups of test arms 320 can provide a certain stability during the movement process.

While the utility model has been described with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the various features of the disclosed embodiments of the utility model may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a steel pipe strength test machine, includes movable base (100), its characterized in that: the front end of activity base (100) runs through and has seted up first fixed passage (101), and can dismantle in first fixed passage (101) and be provided with steel pipe (120), the front end of activity base (100) is provided with double-deck activity ring (200), and the front end of double-deck activity ring (200) runs through and has seted up second fixed passage (201), second fixed passage (201) internalization is provided with four group's centre gripping wheels (230), intensity testing arrangement (300) are installed to the rear end of activity base (100), and intensity testing arrangement (300) including unable adjustment base (310), the top side activity of unable adjustment base (310) is provided with two sets of test arms (320).

2. The steel pipe strength testing machine according to claim 1, characterized in that: the bottom end of the movable base (100) is provided with a universal wheel (110) through a bolt.

3. The steel pipe strength testing machine according to claim 1, wherein: the front end of activity base (100) is provided with bull stick (210), and the one end of bull stick (210) is connected with centre gripping wheel (230) in extending to second fixed passage (201) through the outer wall that runs through double-deck activity ring (200), the outer wall of bull stick (210) is provided with movable sleeve (220), and the outer wall of movable sleeve (220) and the inner wall swing joint of double-deck activity ring (200).

4. The steel pipe strength testing machine according to claim 3, characterized in that: fixed block (240) are installed to the outer wall of double-deck activity ring (200), arc wall (102) have been seted up to the front end of activity base (100), and the inner wall and fixed block (240) sliding connection of arc wall (102), the outer wall of fixed block (240) runs through arc wall (102) and is provided with fixing bolt (241).

5. The steel pipe strength testing machine according to claim 1, characterized in that: motor (400) is installed to one side of unable adjustment base (310), and the inner chamber of unable adjustment base (310) rotates and is provided with two-way threaded rod (410), the power take off end that unable adjustment base (310) and motor (400) are run through to the one end of two-way threaded rod (410) is connected, and the outer wall both sides of two-way threaded rod (410) all activity is provided with nut seat (420).

6. The steel pipe strength testing machine according to claim 5, wherein: the top end of the fixed base (310) is penetrated and provided with a sliding groove (311), the inner wall of the sliding groove (311) is provided with two groups of connecting sliding blocks (430) in a sliding mode respectively, the top ends of the two groups of connecting sliding blocks (430) are connected with the bottom ends of the two groups of testing arms (320) respectively, and the bottom ends of the two groups of connecting sliding blocks (430) are connected with the two groups of nut seats (420) respectively.

7. The steel pipe strength testing machine according to claim 5, wherein: the inner cavities of the two groups of nut seats (420) are respectively provided with an internal thread groove (421) matched with the threads on the two sides of the outer wall of the bidirectional threaded rod (410).

8. The steel pipe strength testing machine according to claim 6, wherein: the test arm comprises a fixed base (310), a fixed frame (330) is installed at the top end of the fixed base (310), a sliding rod (340) is installed on the visual surface of the fixed frame (330), two groups of supporting sliding blocks (350) are arranged on the outer wall of the sliding rod (340) in a sliding mode respectively, and the bottom ends of the two groups of supporting sliding blocks (350) are connected with the top ends of two groups of test arms (320) respectively.