Tool matched with indentation analyzer and used for measuring mechanical property of screw

Abstract

The utility model belongs to the field of metal material detection, and discloses a tool matched with an indentation analyzer and used for testing the mechanical property of a screw rod, which comprises a turntable connected with the screw rod to be tested, the turntable is provided with a containing cavity, the indentation analyzer can be placed in the containing cavity, and the testing surface of the indentation analyzer is in contact with the surface of the screw rod to be tested; a tower type fixing seat for applying pressure to the indentation analyzer is arranged above the indentation analyzer; the tower-type fixing seat is provided with an adjusting structure capable of moving up and down; two ends of the adjusting structure are connected with chains; supporting arms are fixedly connected to the peripheral surfaces of the turntables, sliding blocks are connected to the supporting arms, and the lower ends of the chains are connected with the sliding blocks or the turntables on the corresponding sides respectively; and the pressure applied to the indentation analyzer by the chain is changed by adjusting the looseness of the chain. According to the utility model, in the process of carrying out mechanical property detection on the screw rod, the screw rod is prevented from being broken, the diameter of the detected screw rod can be adapted by replacing different turntables, the stability is higher, the operation is simple, and the carrying is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal material detection technical field especially relates to a with indentation analysis appearance matched measure screw rod mechanical property with frock. BACKGROUND

[0002] With the rapid development and promotion of national industrial capacity, the demand for high-strength bolts is also increasing, and the manufacturing and installation quality of high-strength bolts is very important to ensure the safe operation of equipment or unit. For example, all parts of the wind turbine unit are connected into a whole by high-strength bolts, and when the material is received, part of the bolts can be proportionally sampled, especially destructive mechanical tests, and basically detecting a workpiece requires destroying it, but this way is also difficult to detect the whole batch of high-strength bolts. However, the bolts connecting the rack and the main shaft are prone to breakage. UTILITARIAN CONTENT

[0003] The utility model discloses a portable, can carry out detection relevant mechanical property of on -the -spot screw rod with indentation analysis appearance matched measure screw rod mechanical property frock.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a with indentation analysis appearance matched measure screw rod mechanical property frock, including the rotating disc that is connected with the screw rod to be measured, the rotating disc has the accommodating cavity, and the accommodating cavity is used for placing the indentation analysis appearance, and makes the indentation analysis appearance test surface and the screw rod surface to be measured contact;

[0005] The indentation analysis appearance is provided with the tower type fixing seat that gives it pressure from above;

[0006] The tower type fixing seat is provided with the adjusting structure that can move up and down, and the adjusting structure is connected with the chain at both ends;

[0007] The rotating disc outer peripheral surface is fixedly connected with the support arm, the support arm is connected with the sliding block, and the lower end of the chain is connected with the sliding block or the rotating disc on the corresponding side respectively;

[0008] The chain is adjusted to change the pressure size that it exerts on the indentation analysis appearance.

[0009] According to the utility model, further, the sliding block is sleeved on the outer periphery of the support arm, and the sliding block is provided with the bolt that restricts the sliding bolt along the support arm.

[0010] According to the utility model, further, the sliding block and the rotating disc are all provided with the chain groove, the pin shaft is rotatably installed in the two chain grooves, and the two pin shafts are fixedly connected with the corresponding chains respectively.

[0011] Further, the tower type fixing base is a cavity structure, a through groove is formed in the side surface, and an adjusting structure is installed in the through groove.

[0012] According to the utility model, further, the adjusting structure includes rectangular hook chain body, rectangular hook chain body two ends extend to the tower type fixing base outside and corresponding side chain connection, the tower type fixing base top is equipped with screw hole, rectangular hook chain body is equipped with another screw hole with its coaxial, force screw rod from top to bottom in proper order penetrates two screw holes, moves up and down through rotating force screw rod and drives rectangular hook chain body.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1, the utility model discloses can be detected to the mechanical property of screw without damaging the screw, can detect regularly for the service life extension equipment screw, observes the change of relevant index, and the stability is higher, and the operation is simple, convenient to carry.

[0015] 2, the utility model discloses not only can detect the firmness of the indentation analyzer on the measured sample, but also can fix the equipment with similar structure, and through the rotation disc and the measured object fixed, and detect.

[0016] 3. The utility model discloses can avoid the fracture of screw, improve the service life of screw in the process of detecting the mechanical property of screw, and the rotation disc plays the supporting role. DRAWINGS

[0017] Figure 1 It is a kind of solid structure schematic diagram of the tooling for measuring the mechanical property of screw matched with indentation analyzer proposed in the utility model;

[0018] Figure 2 It is a kind of solid explosion drawing of the tooling for measuring the mechanical property of screw matched with indentation analyzer proposed in the utility model;

[0019] Figure 3 It is a kind of front view structure schematic diagram of the tooling for measuring the mechanical property of screw matched with indentation analyzer proposed in the utility model;

[0020] Figure 4 It is a kind of side view structure schematic diagram of the tooling for measuring the mechanical property of screw matched with indentation analyzer proposed in the utility model;

[0021] Figure 5 It is a kind of plan view structure schematic diagram of the tooling for measuring the mechanical property of screw matched with indentation analyzer proposed in the utility model.

[0022] In the figure: 1-rotating disc; 2-supporting arm; 3-sliding block; 4-chain; 5-tower type fixing base; 6-rectangular hook chain body; 7-indentation analyzer. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] Referring to Figures 1-5 A tool for testing mechanical properties of a screw matched with an indentation analyzer, comprising a rotating disc 1 fixedly connected with a tested screw to provide support force for the screw, the rotating disc 1 is in the shape of a whole ring, the hollow cavity of the ring is used to accommodate the indentation analyzer 7, the top of the indentation analyzer 7 is provided with a tower type fixing base 5, the tower type fixing base 5 is connected with the rotating disc 1 through a chain 4, the slack degree of the chain 4 is adjustable, the pressure of the tower type fixing base 5 on the indentation analyzer 7 is changed by adjusting the slack degree, so that the indentation analyzer 7 meets the test preloading requirement; wherein the rotating disc 1 with a corresponding inner diameter matched with the diameter of the tested screw can be selected, the hollow cavity peripheral wall of the rotating disc 1 is provided with threads, so that it can be fixedly connected with the outer periphery of the tested large screw. It is stated here that the indentation analyzer 7 is a kind of detection equipment capable of detecting mechanical properties on site, the measuring head thereof is in the shape of L, and it needs to be stably fixed on the tested sample during testing, and cannot be deflected or displaced during the equipment pressing process.

[0025] Specifically, the outer peripheral surface of the rotating disc 1 is fixedly connected with a supporting arm 2 extending away from the rotating disc 1, the supporting arm 2 is connected with a sliding block 3, the sliding block 3 and the rotating disc 1 are both fixedly connected with a chain 4, the ends of the two chains 4 are connected with the tower type fixing base 5, and the two chains 4 are located on the two sides of the indentation analyzer 7. Wherein, the sliding block 3 and the rotating disc 1 are both provided with a chain groove, a pin shaft is rotatably installed in each of the two chain grooves, and the two pin shafts are fixedly connected with the two chains 4 respectively; the side surface of the tower type fixing base 5 is provided with a through groove penetrating through the two side surfaces, the rectangular hook chain body 6 is movably installed in the through groove, the two ends of the rectangular hook chain body 6 are provided with arc-shaped hooks, the arc-shaped hooks extend to the outside of the tower type fixing base, and are matched with the corresponding side chain 4 to realize hook fixing.

[0026] The tower type fixing base 5 is provided with a threaded hole in the center of the upper end, the rectangular hook chain body 6 is provided with a threaded hole coaxial with the threaded hole of the tower type fixing base 5, the force adding screw rod penetrates the threaded holes of the tower type fixing base and the rectangular hook chain body 6 from top to bottom, and the nut of the force adding screw rod is located above the tower type fixing base 5. By rotating the force adding screw rod, the rectangular hook chain body is driven to move upward or downward, the tension applied to the chain 4 is changed, the slack of the chain 4 is changed, and the pressure applied to the indentation analyzer 7 by the tower type fixing base 5 is changed. The force adding screw rod is a customized screw rod, the thread of the screw rod has a smooth rod section at a position close to the nut, and the rest is a threaded section. The smooth rod section limits the upward and downward displacement of the rectangular hook chain body 6.

[0027] The assembly process of the tower type fixing base 5 is as follows: the rectangular hook chain body 6 is placed horizontally into the through slot of the tower type fixing base 5, and then the force adding screw rod is screwed into the threaded hole in the center of the upper end of the tower type fixing base 5 and the center threaded hole of the rectangular hook chain body 6 from the lower end surface. The assembly is completed, and the chain 4 can be tensioned or loosened.

[0028] In the embodiment, the surface of the sliding block 3 is provided with a rectangular through hole, and the support arm 2 is a rectangular pipe matched with the rectangular through hole. The rectangular through hole is sleeved on the outer periphery of the support arm 2, and the two can slide during adjustment. The sliding block 3 is provided with a fastening bolt screwed thereon. After adjustment, the fastening bolt is screwed to fix the position of the sliding block 3 and the support arm 2.

[0029] Working process: when in use, the measured position of the large screw rod is determined, which is usually the end surface of the anchor bolt or the end surface of the standby bolt. The measured bolt end surface position is simply polished to meet the smoothness requirement. The corresponding size of the turntable 1 is used to connect the measured screw rod, so that the upper end surface of the measured screw rod is flush with the upper end surface of the turntable 1. Then, the lower ends of the two chains 4 are connected with the sliding block 3 and the turntable 1 respectively. The indentation analyzer 7 is placed stably on the end surface of the measured screw rod, and the measured point should be at the midpoint position of the same horizontal line of the two end chains 4. The horizontal centering of the measured point can be realized by adjusting the position of the sliding block 3 and rotating the turntable 1 by a certain angle. Then, the fastening bolt on the sliding block 3 is tightened for positioning. The four slot openings at the bottom of the tower type fixing base 5 are aligned and buckled on the upper end surface of the indentation analyzer 7. The arc-shaped hooks on the rectangular hook chain body 6 are located on the left and right sides of the indentation analyzer 7 respectively. Then, the two chains 4 are hung and buckled on the arc-shaped hooks of the rectangular hook chain body 6 in equal length, so as to ensure that the indentation analyzer 7 is balanced when force is applied. The force adding screw rod of the tower type fixing base 5 is screwed clockwise. The rectangular hook chain body 6 is continuously lifted under the driving of the thread, and the chain 4 is tensioned until the chain 4 can provide sufficient preload to meet the test requirement of the indentation analyzer 7. When it is necessary to replace the measured point position, the force adding screw rod needs to be screwed counterclockwise, so that the chain 4 is loosened. The chain 4 is removed, the position of the indentation analyzer 7 is moved, the turntable 1 is rotated by a certain angle, the position of the sliding block 3 is adjusted, and the measured screw rod is measured again according to the above technical scheme.

[0030] The above merely describes a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent substitutions or changes within the technical range disclosed by the present application, which should be covered within the scope of protection of the present application.

Claims

1. A tool for measuring mechanical properties of a screw matched with an indentation analyzer, characterized by, The turntable includes a rotating disk connected to the screw to be tested, wherein the rotating disk has a receiving cavity, and the receiving cavity is used to place an indentation analyzer so that a test surface of the indentation analyzer contacts a surface of the screw to be tested; A tower-type fixing seat for applying pressure to the indentation analyzer is provided above the indentation analyzer; The tower-type fixing seat is provided with an adjustment structure that can move up and down, and chains are connected to both ends of the adjustment structure; A support arm extending away from the turntable is fixedly connected to the outer peripheral surface of the turntable, and a slider is slidably connected to the support arm. The lower ends of the chains are respectively connected to the sliders or turntables on the corresponding sides; by adjusting the slack of the chain, the pressure applied to the indentation analyzer is changed to detect the mechanical properties of the bolt being tested.

2. The tool for testing mechanical properties of a screw according to claim 1, wherein The sliding block is sleeved on the outer periphery of the support arm, and a bolt is installed on the sliding block to limit the sliding of the sliding block along the support arm.

3. The tool for testing mechanical properties of a screw according to claim 1, wherein The slider and the turntable are both provided with chain slots, and pins are rotatably installed in the two chain slots. The two pins are respectively fixedly connected to corresponding chains.

4. The tool for testing mechanical properties of a screw according to claim 1, wherein The tower-type fixing seat is a cavity structure, a through slot is provided on the side surface, and an adjustment structure is installed in the through slot.

5. The tool for testing mechanical properties of a screw according to claim 4, wherein The adjustment structure includes a rectangular hook chain body, both ends of which extend to the outside of the tower fixing seat and are connected to the chain on the corresponding side. A threaded hole is provided on the top of the tower fixing seat, and another threaded hole coaxial with the tower fixing seat is provided on the rectangular hook chain body. The force screw passes through the two threaded holes from top to bottom in sequence, and the rectangular hook chain body is driven to move up and down by rotating the force screw.

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