Tensioning tool for detecting mechanical property of pull rod

Abstract

The utility model discloses a tensioning tool for detecting the mechanical property of a pull rod. The tensioning tool comprises a counter-force supporting frame, a tensioning pull rod assembly and a jack assembly. The tensioning pull rod assembly is connected with the jack assembly, the clamping end of the tensioning pull rod assembly extends into the tensioning space of the counter-force supporting frame, the clamping end corresponds to an anchoring end base plate of the counter-force supporting frame in a spacing mode in the tensioning direction, and the clamping end is provided with an opening penetrating installation groove III used for penetrating installation of the test pull rod assembly; in the detection test, the anchoring end of the test pull rod assembly is installed on the anchoring end base plate in a penetrating mode, the tensioning end of the test pull rod assembly is installed on the clamping end in a penetrating mode through the third opening penetrating installation groove, and the jack assembly exerts tensioning force on the test pull rod assembly on the counter-force supporting frame through traction of the tensioning pull rod assembly on the test pull rod assembly. The device has the technical characteristics of short time consumption and high efficiency in the detection process of the test pull rod assembly in unit time, and effectively meets the technical requirements of carrying out super-tension mechanical property detection on a large number of pull rods required by suspension bridge engineering construction.

Description

Technical Field

[0001] The utility model relates to mechanical property testing equipment for metal parts, in particular to a tensioning tool for testing the mechanical properties of a steel pull rod. Background Art

[0002] In suspension bridge structures, high-strength steel tie rods are widely used, such as cable clamp locking connections (cable clamp tie rods), main cable anchor connections (anchor adjustment tie rods), etc. It can be seen that it is one of the core components of the load-bearing components of suspension bridges, and its mechanical properties are directly related to the forming and connection quality of the load-bearing components of suspension bridges. In order to ensure the reliability of the formed structure of the suspension bridge, the high-strength steel tie rods used need to be tested for related mechanical properties such as super-tensioning, static load, and fatigue, among which the super-tensioning mechanical properties are 100% tested for the product quantity.

[0003] Conventional tensioning tooling for super tensioning and static load mechanical performance testing of high-strength steel tie rods, such as Figure 1 As shown, it includes a reaction support frame 10 and a jack assembly 20. Specifically, the reaction support frame 10 is mainly composed of an anchor end seat plate 101, a tension end seat plate 102 and a plurality of reaction support rods 103; the anchor end seat plate 101 and the tension end seat plate 102 are arranged in a spacing manner in the tensioning direction to form a tensioning space, the anchor end seat plate 101 is provided with a through-rod hole 104 with a hole diameter larger than the outer diameter of the test tension rod body 301 and located in the tensioning space, and the tension end seat plate 102 is provided with a through-rod hole 2 105 with a hole diameter larger than the outer diameter of the test tension rod body 301 and located in the tensioning space, and the through-rod hole 2 105 corresponds to the through-rod hole 104; the plurality of reaction support rods 103 are connected between the anchor end seat plate 101 and the tension end seat plate 102 on both sides of the tensioning space in a left-right symmetrical arrangement structure along the tensioning direction. The test rod assembly 30 is mainly composed of a test rod body 301, an anchoring end nut 302 and a tensioning end nut 303. The anchoring end nut 302 is detachably connected to the anchoring end of the test rod body 301 with a threaded structure, and the tensioning end nut 303 is detachably connected to the tensioning end of the test rod body 301 with a threaded structure. The jack of the jack assembly 20 is a through-type structure, which is arranged outside the tensioning end seat plate 102 of the reaction support frame 10, corresponding to the through-rod hole 2 105 on the tensioning end seat plate 102.

[0004] When the tensioning tool is used to perform super tensioning mechanical property testing on multiple test tie rod assemblies 30, the following process is used:

[0005] Step 1. The test rod body 301 of the test rod assembly 30 is sequentially axially passed through the rod hole 104 on the anchor end base plate 101, the rod hole 105 on the tension end base plate 102, and the inner hole of the through-type jack (or sequentially axially passed through the inner hole of the through-type jack, the rod hole 105 on the tension end base plate 102, and the rod hole 104 on the anchor end base plate 101), until the tension end of the test rod body 301 extends outward from the front end of the through-type jack and the anchor end extends outward from the outer side of the anchor end base plate 101;

[0006] Step 2. Connect the tension end nut 303 to the tension end of the test tie rod body 301 with a threaded structure, and press against the through-type jack;

[0007] Connect the anchor end nut 302 to the anchor end of the test rod body 301 with a threaded structure, and press against the anchor end base plate 101;

[0008] Step 3. Start the through-type jack, and convert the force applied by the through-type jack between the tensioning end nut 303 and the tensioning end seat plate 102 into a tensioning force on the test tie rod assembly 30 on the reaction support frame 10;

[0009] Complete the super tension or static load mechanical performance test of the current test tie rod assembly 30;

[0010] Step 4. Disassemble the test tie rod assembly 30;

[0011] Pull out the test tie rod body 301 from the through-type jack and the reaction support frame 10, leaving the tensioning tooling empty;

[0012] Repeat steps 1 to 4 to perform super tension or static load mechanical property tests on other test tie rod assemblies 30 one by one.

[0013] It can be seen from the above process that before the formal mechanical property test of the test tie rod assembly is carried out, the disassembled test tie rod assembly needs to occupy a position on the tensioning fixture for the troublesome and time-consuming overall assembly and clamping operation; after the mechanical property test of the test tie rod assembly is completed, the overall assembled test tie rod assembly needs to occupy a position on the tensioning fixture for the troublesome and time-consuming disassembly and disassembly operation. Moreover, the aforementioned clamping and disassembly operations cause the current test tie rod assembly to occupy a position on the tensioning fixture for a relatively long time, hindering the detection of other test tie rod assemblies waiting to be placed on the current tensioning fixture. In other words, the detection process of the test tie rod assembly of a single tensioning fixture of the above structure is long and inefficient per unit time.

[0014] However, in the suspension bridge structure, a large number of high-strength steel tie rods are used, and under the 100% inspection technical requirements, the workload of tensioning inspection of high-strength steel tie rods is large. It will inevitably take a lot of time to complete the mechanical properties inspection of many high-strength steel tie rods on the same tensioning tooling.

[0015] Therefore, the detection efficiency of the above-mentioned existing tensioning tooling is low and cannot meet the technical requirements of super-tensioning and static load mechanical performance testing of a large number of tension rods. It is necessary to develop a tensioning tool that has a short and efficient detection process for the test tension rod assembly per unit time. Utility Model Content

[0016] The technical purpose of the utility model is to provide a tensioning tool for testing the mechanical properties of the rod, which is conducive to improving the convenience of clamping and disassembly of the test rod assembly on the tensioning tool, and shortening the time-consuming clamping and disassembly operations.

[0017] The technical purpose of the utility model is achieved through the following technical scheme: a tensioning tool for testing the mechanical properties of a pull rod, comprising a reaction support and a jack assembly;

[0018] The jack assembly is arranged on the outer side of the tension end seat plate of the reaction support;

[0019] The tensioning tool also includes a tensioning rod assembly, the tensioning rod assembly has a tensioning end connected to the jack assembly, and a clamping end connected to the test rod assembly, the clamping end of the tensioning rod assembly has an open insertion groove three with a U-shaped profile structure for inserting the test rod assembly;

[0020] The tensioning rod assembly is connected to the jack assembly, and the clamping end of the tensioning rod assembly extends into the tensioning space of the reaction support frame, and the clamping end of the tensioning rod assembly and the anchor end seat plate of the reaction support frame form a corresponding spacing in the tensioning direction; in the detection test, the anchor end of the test rod assembly is installed on the anchor end seat plate of the reaction support frame, and the tensioning end of the test rod assembly is installed on the clamping end of the tensioning rod assembly through the open installation groove, and the jack assembly pulls the test rod assembly through the tensioning rod assembly to apply tensioning force to the test rod assembly on the reaction support frame.

[0021] The above technical measures are aimed at the particularity of over-tensioning and static load testing of steel tie rods. The tensioning tie rod assembly connected by the jack assembly cooperates with the reaction support to clamp the test tie rod assembly. The test tie rod assembly does not need to pass through the jack assembly on the reaction support, and the tensioning tie rod assembly uses an open threading groove of a U-shaped structure to perform quick-install / quick-disassemble open-type threading connection on the tensioning end of the test tie rod assembly. Under the premise of not affecting the tensioning force, the test tie rod assembly with the tensioning end nut can be directly placed in / taken out of the clamping end of the tensioning tie rod assembly, without affecting the tensioning force, and there is no need to perform the overall assembly and clamping of the split structure / disassembly of the overall structure of the tensioning end of the test tie rod assembly in the occupied state, which is beneficial to avoid the tedious operations of perforating the tensioning end of the test tie rod assembly and connecting / disassembling the tensioning end nut. That is to say, the above technical measures can make the assembled test tie rod assembly (at least the tensioning end assembled) in the non-occupied state be connected to the tensioning tie rod assembly directly and quickly on the reaction support frame for clamping; or, the overall test tie rod assembly after the test is completed can be directly and quickly disassembled from the tensioning tie rod assembly on the reaction support frame, and the assembled test tie rod assembly can be disassembled in the out-of-position state. Therefore, compared with the traditional tensioning tooling, the above technical measures greatly simplify the clamping and disassembly operations of the test tie rod assembly on the reaction support frame, and also greatly reduce the time spent on the clamping and disassembly operations of the test tie rod assembly on the reaction support frame. It has the technical characteristics of short time consumption and high efficiency in the detection process of the test tie rod assembly per unit time, and effectively meets the technical requirements of super-tensioning and static load mechanical performance testing of a large number of tie rods required for the construction of suspension bridge projects.

[0022] As one of the preferred solutions, the clamping end of the tension rod assembly has a traction head, and the traction head is provided with an open insertion groove three for inserting the test rod assembly;

[0023] When the test rod assembly is installed on the clamping end of the tensioning rod assembly, the tensioning end of the test rod body of the test rod assembly extends into or passes through the traction head through the open insertion groove three, and the tensioning end nut one of the test rod assembly is matched with the anchor end nut spacing across the structure where the open insertion groove three is located.

[0024] Furthermore, a concave structure is formed in the middle of the traction head of the tension rod assembly to form a limited cavity, and the side of the limited cavity away from the jack assembly is connected to the open wear groove three times, and the limited cavity and the open wear groove three times are connected.

[0025] forming a T-shaped sink structure on the traction head;

[0026] When the test rod assembly is installed on the clamping end of the tensioning rod assembly, the tensioning end of the test rod body of the test rod assembly extends into the limiting cavity through the open installation groove three, and the tensioning end nut connected to the tensioning end of the test rod body is located in the limiting cavity.

[0027] The traction head of the above technical measures can reliably cooperate with the reaction support frame to efficiently connect the test pull rod assembly for quick installation / quick removal without hindering the tensioning force, and has the technical characteristics of simple structure, easy molding and clear force.

[0028] As one of the preferred solutions, the tension rod assembly is mainly composed of a tension rod body, a tension end nut 2, and a traction head;

[0029] The tensioning end of the tensioning rod body passes through the jack of the jack assembly and extends out of the end of the jack away from the reaction support frame;

[0030] The tensioning end nut 2 is connected to the tensioning end of the tensioning rod body extending out of the jack with a detachable threaded structure;

[0031] The traction head is connected to the clamping end of the tension rod body with a detachable threaded structure;

[0032] The jack of the jack assembly is a through-type jack.

[0033] The tensioning rod assembly of the above technical measures is specially formed for cooperation with the through-type jack, and has the technical characteristics of simple structure, easy forming and clear force. It can be repeatedly used on the tensioning tooling and will not be replaced with the replacement of the test rod assembly (except for specification changes or damage replacement).

[0034] As one of the preferred solutions, the reaction support frame is mainly composed of an anchor end base plate, a tension end base plate and a plurality of reaction support rods;

[0035] The anchoring end seat plate and the tensioning end seat plate are arranged in a spacing manner in the tensioning direction to form a tensioning space;

[0036] A plurality of reaction force support rods are connected between the anchor end seat plate and the tensioning end seat plate on both sides of the tensioning space in a bilaterally symmetrical arrangement structure along the tensioning direction.

[0037] Furthermore, an open insertion groove with a U-shaped profile structure for inserting the test pull rod assembly is formed on the anchor end seat plate of the reaction support frame with a sunken concave structure;

[0038] The first opening insertion groove on the anchor end seat plate corresponds to the third opening insertion groove on the clamping end of the tensioning rod assembly in the tensioning space.

[0039] The reaction support frame of the above technical measures cooperates with the above tensioning rod assembly. Under the cooperation of the two, the test rod assembly can be more effectively assembled / disassembled quickly, that is, the integral structure test rod assembly with the anchor end nut and the tensioning end nut can be directly put into / taken out of the tensioning fixture, without the need to perform the integral assembly and clamping of the split structure / disassembly of the integral structure of the test rod assembly in the occupied state, which is conducive to eliminating the tedious operations of perforating the test rod assembly and connecting / disassembling the anchor end nut and the tensioning end nut. In other words, the above technical measures can directly and quickly clamp the assembled test rod assembly in the non-occupied state (i.e., out-of-position state) on the tensioning fixture; or, the integral test rod assembly after the test is completed can be directly and quickly disassembled and detached from the tensioning fixture, and the assembled and completed test rod assembly can be disassembled in the out-of-position state. Therefore, compared with traditional tensioning fixtures, the above-mentioned technical measures have greatly simplified the clamping and disassembly operations of the test rod assembly on the tensioning fixture, and also greatly reduced the time spent on clamping and disassembling the test rod assembly on the tensioning fixture. It has the technical characteristics of short time and high efficiency in the inspection process of the test rod assembly per unit time, and effectively meets the technical requirements for super-tensioning and static load mechanical property testing of a large number of rods required for the construction of suspension bridge projects.

[0040] Furthermore, the outer wall surface of the anchor end seat plate of the reaction support is formed with positioning stoppers in a concave structure along both sides of the forming contour of the opening through-fitting groove 1;

[0041] When the test rod assembly is installed at the reaction support, the anchoring end of the test rod body of the test rod assembly passes through the open installation groove 1 and extends outside the anchoring end seat plate. The anchoring end nut of the test rod assembly is connected to the test rod body outside the anchoring end seat plate, and the anchoring end nut is located in the positioning stop, and the positioning stop limits the anchoring end nut to prevent rotation.

[0042] Under the premise of satisfying the requirements of rapid clamping and reliable force application of the test rod assembly, the above-mentioned technical measures can effectively prevent the test rod assembly from rotating on the reaction support frame through the cooperation of the positioning stop and the anchor end nut, which is beneficial to enhancing the stability of the test rod assembly clamped on the reaction support frame.

[0043] As one of the preferred solutions, the tensioning end seat plate of the reaction support frame is formed with a second opening insertion groove with a U-shaped profile structure for inserting the tensioning rod assembly in a sunken concave structure;

[0044] When the clamping end of the tensioning rod assembly extends into the tensioning space of the reaction support, the tensioning rod body of the tensioning rod assembly passes through the tensioning end seat plate through the second opening insertion groove.

[0045] The reaction support frame of the above technical measures can be quickly assembled / disassembled with the tension rod assembly installed on the jack assembly, and the assembly / disassembly operation is simplified, which is conducive to simple and rapid replacement of the tension rod assembly on the reaction support frame.

[0046] As one of the preferred solutions, the test rod assembly is mainly composed of a test rod body, an anchoring end nut and a tensioning end nut;

[0047] The anchor end nut is connected to the anchor end of the test tie rod body by a threaded structure. In the detection test, the anchor end nut cooperates with the anchor end seat plate of the reaction support frame;

[0048] The tensioning end nut 1 is connected to the tensioning end of the test rod body by a threaded structure. In the detection test, the tensioning end nut 1 cooperates with the clamping end of the tensioning rod assembly.

[0049] Furthermore, the outer contours of the anchoring end nut and the tensioning end nut are respectively rectangular structures.

[0050] The test tie rod assembly of the above technical measures effectively meets the operational technical requirements of the tensioning test and is conducive to enhancing the stability of the test rod assembly when clamped with the tensioning fixture.

[0051] The beneficial technical effect of the utility model is as follows: the above-mentioned technical measures are aimed at the particularity of over-tensioning and static load testing of steel tie rods. The tensioning tie rod assembly connected by the jack assembly cooperates with the reaction force support frame to clamp the test tie rod assembly. The tensioning tooling uses an open threading groove of a U-shaped structure to perform quick-install / quick-disassemble open-type threading connection on the test tie rod assembly. Under the premise of not affecting the tensioning force, the integral structure test tie rod assembly with the anchor end nut and the tensioning end nut can be directly placed in / taken out of the tensioning tooling, without affecting the tensioning force, and there is no need to perform the integral assembly and clamping of the split structure / disassembly of the integral structure of the test tie rod assembly in the occupied state, which is beneficial to avoid the cumbersome operations of perforating the test tie rod assembly and connecting / disassembling the anchor end nut and the tensioning end nut.

[0052] Therefore, the above technical measures can directly and quickly clamp the assembled test tie rod assembly in the non-occupied state (i.e., out-of-position state) on the tensioning fixture; or, directly and quickly disassemble and detach the entire test tie rod assembly after the test is completed on the tensioning fixture, and disassemble the assembled and tested test tie rod assembly in the out-of-position state. It can be seen that compared with the traditional tensioning fixture, the above technical measures greatly simplify the clamping and disassembly operations of the test tie rod assembly on the tensioning fixture, and also greatly reduce the time spent on the clamping and disassembly operations of the test tie rod assembly on the tensioning fixture. It has the technical characteristics of short time consumption and high efficiency in the detection process of the test tie rod assembly per unit time, and effectively meets the technical requirements for super-tensioning and static load mechanical performance testing of a large number of tie rods required for the construction of suspension bridge projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 The figure is a schematic diagram of the structure of the existing tensioning tooling used for testing the mechanical properties of the tie rod.

[0054] Figure 2 It is a structural schematic diagram of the utility model.

[0055] Figure 3 for Figure 2 The reference diagram of the use state of the utility model is shown.

[0056] Figure 4 for Figure 3 Side view of.

[0057] Figure 5 for Figure 2 , Figure 3 and Figure 4 Schematic diagram of the structure of the traction head.

[0058] Figure 6 for Figure 3 and Figure 4 Schematic diagram of the structure of the test rod assembly.

[0059] Meanings of the codes in the figure: 1, 10—reaction support frame; 11, 101—anchor end seat plate; 12, 102—tension end seat plate; 13, 103—reaction support rod; 14—opening through-mounting slot one; 15—opening through-mounting slot two; 16—positioning stop; 104—through-mounting hole one; 105—through-mounting hole two; 2, 20—jack assembly; 21—jack; 22—bracket; 3, 30—test tie rod assembly; 31, 301—test tie rod body; 32, 302—anchor end nut; 33—tension end nut one; 303—tension end nut; 4—tension tie rod assembly; 41—tension tie rod body; 42—traction head; 43—limiting cavity; 44—opening through-mounting slot three; 45—tension end nut two. DETAILED DESCRIPTION

[0060] The utility model relates to a mechanical property testing device for metal workpieces, specifically a tensioning tool for testing the mechanical properties of steel pull rods. The main technical solution of the utility model is specifically described below in combination with multiple embodiments. Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The technical solution of the present utility model is clearly and in detail explained; although other embodiments are not separately drawn with drawings, their main structures can still refer to the drawings of embodiment 1.

[0061] It should be noted that the drawings of the present invention are schematic, and unnecessary details have been simplified to clarify the technical purpose of the present invention, so as to avoid blurring the technical solution of the present invention in the prior art. In addition, the expressions "approximately" and "substantially" in the following text regarding quantity or matching relationship mean that reasonable assembly errors and processing errors in the industry are allowed to exist, and do not literally express absolute quantity or matching relationship.

[0062] Example 1

[0063] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the utility model is a tensioning tool for testing the mechanical properties of a tension rod, especially a high-strength steel tension rod under super tension (static load), which includes a reaction support 1, a jack assembly 2 and a tensioning rod assembly 4.

[0064] like Figure 6 As shown, the test rod assembly 3 used for mechanical property testing of the utility model is mainly composed of a test rod body 31, an anchoring end nut 32 and a tensioning end nut 33. The test rod body 31 is a steel structure, and its two ends have threaded structures respectively. Corresponding to the tensioning test, one end is defined as the anchoring end and the other end is defined as the tensioning end. Therefore, the anchoring end nut 32 is connected to the anchoring end of the test rod body 31 with a detachable threaded structure. In the detection test, it is used to cooperate with the anchoring end seat plate 11 of the reaction support frame 1. The tensioning end nut 33 is connected to the tensioning end of the test rod body 31 with a detachable threaded structure. In the detection test, it is used to cooperate with the clamping end of the tensioning rod assembly 4 extending into the tensioning space of the reaction support frame 1. In order to increase the clamping force on the tensioning fixture and prevent the test rod assembly 3 from rotating on the tensioning fixture, the outer contours of the aforementioned anchoring end nut 32 and tensioning end nut 33 are rectangular structures respectively.

[0065] The reaction support frame 1 is mainly composed of an anchor end base plate 11, a tension end base plate 12 and four reaction support rods 13. The anchor end base plate 11 and the tension end base plate 12 are arranged in a spacing manner in the tension direction to form a tensioning space; at the middle of the top side of the anchor end base plate 11, an open insertion groove 14 with a U-shaped profile structure is formed in a sunken concave structure to connect the inner and outer sides and is used to pass through the test tie rod assembly 3; at the middle of the top side of the tension end base plate 12, an open insertion groove 2 with a U-shaped profile structure is formed in a sunken concave structure to connect the inner and outer sides and is used to pass through the tension tie rod assembly 4, and the open insertion groove 2 15 basically corresponds to the aforementioned open insertion groove 14 in the tension direction. Four reaction support rods 13 are connected between the anchor end seat plate 11 and the tension end seat plate 12 on both sides of the tensioning space in a bilaterally symmetrical arrangement structure along the tensioning direction, so that the reaction support frame 1 forms a frame structure.

[0066] The jack assembly 2 is mainly composed of a through-type jack 21, a bracket 22 and a force sensor. Under the adjustment support of the bracket 22, the jack 21 is arranged outside the tension end seat plate 12 of the above-mentioned reaction support frame 1, and the center hole of the jack 21 corresponds to the opening through-slot 2 15 on the above-mentioned tension end seat plate 12. The force sensor is connected to the jack 21.

[0067] The tensioning rod assembly 4 is mainly composed of a tensioning rod body 41, a tensioning end nut 45, and a traction head 42. The outer diameter of the tensioning rod body 41 is slightly smaller than the inner hole of the jack 21 and the open through-groove 15 on the tensioning end seat plate 12. It is used to pass through the inner hole of the jack 21 and connect with the test rod assembly 3 in the reaction support frame 1. Therefore, corresponding to the tensioning test, one end is defined as the clamping end and the other end is defined as the tensioning end. The tensioning end of the tensioning rod body 41 passes through the inner hole of the jack 21 of the jack assembly 2 and extends out of the end of the jack 21 away from the reaction support frame 1; in the matching structure of the jack assembly 2 and the reaction support frame 1, the clamping end of the tensioning rod body 41 passes through the open through-groove 15 on the tensioning end seat plate 12 and extends into the tensioning space of the reaction support frame 1. The tensioning end nut 2 45 is connected to the tensioning end of the tensioning rod body 41 extending out of the jack 21 with a detachable threaded structure, and the tensioning rod body 41 is locked at the outer end of the jack 21. The traction head 42 is connected to the clamping end of the tensioning rod body 41 with a detachable threaded structure, and is located in the tensioning space of the reaction support 1.

[0068] At the middle of the top side of the traction head 42, a limit cavity 43 is formed by a sunken concave structure. The horizontal width (relative to the horizontal direction of the tensioning direction) and the sunken depth of the limit cavity 43 are slightly larger than the circumferential profile of the tensioning end nut 33 of the test tie rod assembly 3, and can accommodate it; the longitudinal depth (relative to the longitudinal direction of the tensioning direction) of the limit cavity 43 is slightly larger than the thickness of the tensioning end nut 33 of the test tie rod assembly 3 and the outer tie rod end of the tensioning end nut 33. On the side of the limit cavity 43 away from the jack assembly 2 (i.e., the side close to the anchor end seat plate 11 of the reaction support frame 1), an open insertion groove 3 44 with a U-shaped profile structure connecting the limit cavity 43 and the outer side and used for inserting the test tie rod assembly 3 is formed by a sunken concave structure. The open insertion groove 3 44 is connected with the above-mentioned limit cavity 43, so that the limit cavity 43 and the open insertion groove 3 44 form a T-shaped sunken groove structure on the traction head 42. The open insertion groove 3 44 on the traction head 42 corresponds to the open insertion groove 14 provided on the anchor end base plate 11 of the reaction support 1 in the tensioning direction in the tensioning space.

[0069] When the test rod assembly 3 of the above structure is installed on the clamping end of the above tensioning rod assembly 4, the tensioning end of the test rod body 31 of the test rod assembly 3 extends into the limiting cavity 43 through the above-mentioned open installation groove three 44, and the tensioning end nut 33 of the test rod assembly 3 is in the limiting cavity 43, so that the traction head 42 forms a hook and traction on the tensioning end nut 33 of the test rod assembly 3, and the tensioning end nut 33 of the test rod assembly 3 is matched with the anchoring end nut 32 through the cavity wall of the limiting cavity 43 where the open installation groove three 44 is located.

[0070] When the test rod assembly 3 of the above structure is installed on the anchor end seat plate 11 of the above reaction support frame 1, the anchor end of the test rod body 31 of the test rod assembly 3 extends out of the anchor end seat plate 11 through the above-mentioned open installation groove 14, and the anchor end nut 32 of the test rod assembly 3 is located outside the anchor end seat plate 11, forming a limit for the test rod body 31 in the tensioning direction.

[0071] In the matching structure between the anchor end seat plate 11 and the anchor end nut 32, a positioning stop 16 is formed in a concave structure on the outer wall of the anchor end seat plate 11 along both sides of the molding contour of the open threading groove 14. The width of the positioning stop 16 is slightly larger than the rectangular contour width of the anchor end nut 32 of the above structure, but smaller than the maximum rotation diameter of the anchor end nut 32 of the above structure. When the test tie rod assembly 3 is installed at the reaction support 1, as described above, the anchor end of the test tie rod body 31 of the test tie rod assembly 3 passes through the open threading groove 14 and extends outside the anchor end seat plate 11. The anchor end nut 32 of the test tie rod assembly 3 is connected to the test tie rod body 31 outside the anchor end seat plate 11, and the anchor end nut 32 is in the positioning stop 16. The positioning stop 16 prevents the anchor end nut 32 from rotating.

[0072] When the tensioning tool of the utility model is used to perform super tensioning and static load mechanical performance testing on the test tie rod assembly 3, the following process can be implemented:

[0073] Step 1. In the off-position state, assemble the test rod body 31, the anchor end nut 32, and the tension end nut 33 of the test rod assembly 3 into a whole according to the tension length in the reaction support frame 1;

[0074] Step 2. Insert the entire test tie rod assembly 3 directly and quickly through the open insertion groove 3 44 on the traction head 42 and the open insertion groove 14 on the anchor end base plate 11 with an open connection structure to form a tension limiter;

[0075] Compared with the relative position of the reaction support frame 1 and the tension rod assembly 4, the test rod assembly 3 can be fine-tuned;

[0076] Step 3. Start the through-type jack 21, and convert the force applied by the through-type jack 21 between the tensioning end nut 2 45 and the tensioning end seat plate 12 into a traction force of the tensioning rod assembly 4 on the test rod assembly 3, thereby applying a tensioning force to the test rod assembly 3 on the reaction support 1;

[0077] Complete the super tension or static load mechanical performance test of the current test tie rod assembly 3;

[0078] Step 4. Take out the whole test rod assembly 3 directly and quickly through the open insertion groove 3 44 on the traction head 42 and the open insertion groove 14 on the anchor end base plate 11 with an open connection structure;

[0079] The whole test rod assembly 3 is disassembled in the out-of-position state.

[0080] Through the above process, it can be found that the clamping and disassembly of the test rod assembly 3 on the tensioning fixture of the utility model are very convenient and fast. The test rod assembly 3 is in place for a short time on the tensioning fixture, and the time in place is mainly reflected in the clamping fine-tuning and tensioning force application process, which eliminates the operation of assembling the test rod assembly of the split structure as an integral whole in place, and disassembling the test rod assembly of the integral structure in place.

[0081] Example 2

[0082] The utility model is a tensioning tool for testing the mechanical properties of a tension rod, especially a high-strength steel tension rod under super tension (static load), which comprises a reaction force support, a jack assembly and a tensioning tension rod assembly.

[0083] The utility model is a test rod assembly used for mechanical property testing, which is mainly composed of a test rod body, an anchoring end nut and a tensioning end nut. The test rod body is a steel structure, and its two ends have threaded structures respectively. Corresponding to the tensioning test, one end is defined as the anchoring end and the other end is defined as the tensioning end. Therefore, the anchoring end nut is connected to the anchoring end of the test rod body with a detachable threaded structure, and in the detection test, it is used to cooperate with the anchoring end seat plate of the reaction support. The tensioning end nut is connected to the tensioning end of the test rod body with a detachable threaded structure, and in the detection test, it is used to cooperate with the clamping end of the tensioning rod assembly extending into the tensioning space of the reaction support. In order to increase the clamping force on the tensioning fixture and prevent the test rod assembly from rotating on the tensioning fixture, the outer contours of the aforementioned anchoring end nut and tensioning end nut are respectively rectangular structures.

[0084] The reaction support frame is mainly composed of an anchor end seat plate, a tensioning end seat plate and four reaction support rods. The anchor end seat plate and the tensioning end seat plate are arranged in a spacing manner in the tensioning direction to form a tensioning space; in the middle of the top side of the anchor end seat plate, an open insertion groove with a U-shaped profile structure is formed with a sunken concave structure to connect the inside and outside sides and is used to pass through the test tie rod assembly; in the middle of the tensioning end seat plate, a through-rod hole is formed with a through-hole structure to connect the inside and outside sides and is used to pass through the tensioning tie rod assembly. The through-rod hole basically corresponds to the bottom of the aforementioned open insertion groove in the tensioning direction. The four reaction support rods are connected between the anchor end seat plate and the tensioning end seat plate on both sides of the tensioning space in a left-right symmetrical arrangement structure along the tensioning direction, so that the reaction support frame forms a frame structure.

[0085] The jack assembly is mainly composed of a through-type jack, a bracket and a force sensor. Under the adjustment support of the bracket, the jack is arranged on the outside of the tension end seat plate of the above-mentioned reaction support frame, and the center hole of the jack corresponds to the through-rod hole on the above-mentioned tension end seat plate. The force sensor is connected to the jack.

[0086] The tensioning rod assembly is mainly composed of a tensioning rod body, a tensioning end nut 2, and a traction head. The outer diameter of the tensioning rod body is slightly smaller than the inner hole of the above-mentioned jack and the through-rod hole on the above-mentioned tensioning end seat plate. It is used to pass through the inner hole of the above-mentioned jack and connect with the test rod assembly in the above-mentioned reaction support frame. Therefore, corresponding to the tensioning test, one end is defined as the clamping end and the other end is defined as the tensioning end. The tensioning end of the tensioning rod body passes through the inner hole of the jack assembly and extends out of the end of the jack away from the above-mentioned reaction support frame; in the matching structure of the above-mentioned jack assembly and the reaction support frame, the clamping end of the tensioning rod body passes through the through-rod hole on the above-mentioned tensioning end seat plate and extends into the tensioning space of the above-mentioned reaction support frame. The tensioning end nut 2 is connected to the tensioning end of the tensioning rod body extending out of the jack with a detachable threaded structure, and locks the tensioning rod body at the outer end of the jack. The traction head is connected to the clamping end of the tensioning rod body with a detachable threaded structure and is located in the tensioning space of the reaction support frame.

[0087] At the middle of the top side of the traction head, a limited cavity is formed by a sunken concave structure. The horizontal width (relative to the horizontal direction of the tensioning direction) and the sunken depth of the limited cavity are slightly larger than the circumferential contour of the tensioning end nut of the test pull rod assembly, and can accommodate it; the vertical depth (relative to the longitudinal direction of the tensioning direction) of the limited cavity is slightly larger than the thickness of the tensioning end nut of the test pull rod assembly and the outer side of the tensioning end nut. On the side of the limited cavity away from the jack assembly (i.e., the side close to the anchor end seat plate of the reaction support frame), an open insertion groove 3 with a U-shaped profile structure connecting the limited cavity and the outside and used for inserting the test pull rod assembly is formed by the sunken concave structure. The open insertion groove 3 is connected with the above-mentioned limited cavity, so that the limited cavity and the open insertion groove 3 form a T-shaped sunken groove structure on the traction head. The open insertion groove 3 on the traction head and the open insertion groove 1 opened on the anchor end seat plate of the reaction support frame have corresponding spacing in the tensioning direction in the tensioning space.

[0088] When the test rod assembly of the above structure is installed on the clamping end of the above tensioning rod assembly, the tensioning end of the test rod body of the test rod assembly extends into the limiting cavity through the above-mentioned open installation groove three, and the tensioning end nut of the test rod assembly is in the limiting cavity, so that the traction head forms a hook and traction on the tensioning end nut of the test rod assembly, and the tensioning end nut of the test rod assembly is matched with the anchoring end nut through the limiting cavity wall where the open installation groove three is located.

[0089] When the test tie rod assembly of the above structure is installed on the anchor end seat plate of the above reaction support, the anchor end of the test rod body of the test tie rod assembly extends out of the anchor end seat plate through the above-mentioned open installation groove, and the anchor end nut of the test tie rod assembly is located outside the anchor end seat plate, forming a limit for the test tie rod body in the tensioning direction.

[0090] In the matching structure of the anchor end seat plate and the anchor end nut, a positioning stop is formed with an inner concave structure on the outer wall of the anchor end seat plate along the two sides of the forming contour of the opening threading groove 1, and the width of the positioning stop is slightly larger than the rectangular contour width of the anchor end nut of the above structure, but smaller than the maximum rotation diameter of the anchor end nut of the above structure. When the test tie rod assembly is installed at the reaction support, as described above, the anchor end of the test tie rod body of the test tie rod assembly passes through the opening threading groove 1 and extends outside the anchor end seat plate, and the anchor end nut of the test tie rod assembly is connected to the test tie rod body outside the anchor end seat plate, and the anchor end nut is in the positioning stop, and the positioning stop prevents the anchor end nut from rotating.

[0091] When the tensioning tool of the utility model is used to perform super tensioning and static load mechanical performance testing on the test tie rod assembly, the following process can be implemented:

[0092] Step 1. In the off-position state, assemble the test rod body, anchor end nut, and tension end nut of the test rod assembly into a whole according to the tension length in the reaction support frame;

[0093] Step 2. Insert the entire test tie rod assembly directly and quickly through the open installation slot 3 on the traction head and the open installation slot 1 on the anchor end seat plate with an open connection structure to form a tension limiter;

[0094] It is sufficient to fine-tune the test tie rod assembly compared to the relative position of the reaction support and the tension tie rod assembly;

[0095] Step 3. Start the through-type jack, and convert the force applied by the through-type jack between the tensioning end nut 2 and the tensioning end seat plate into the traction force of the tension rod assembly on the test rod assembly, thereby applying tension force to the test rod assembly on the reaction support frame;

[0096] Complete the super tension or static load mechanical performance test of the current test rod assembly;

[0097] Step 4. Take out the whole test tie rod assembly directly and quickly through the open installation slot 3 on the traction head and the open installation slot 1 on the anchor end base plate with an open connection structure;

[0098] The whole test tie rod assembly is disassembled in the out-of-position state.

[0099] Through the above process, it can be found that the clamping and disassembly of the test tie rod assembly on the tensioning fixture of the utility model are very convenient and fast. The test tie rod assembly is in place for a short time on the tensioning fixture, and the time in place is mainly reflected in the clamping fine-tuning and tensioning force application process, which eliminates the operation of assembling the test tie rod assembly of the split structure as an integral whole in place, and disassembling the test tie rod assembly of the integral structure in place.

[0100] Example 3

[0101] The utility model is a tensioning tool for testing the mechanical properties of a tension rod, especially a high-strength steel tension rod under super tension (static load), which comprises a reaction force support, a jack assembly and a tensioning tension rod assembly.

[0102] The utility model is a test rod assembly used for mechanical property testing, which is mainly composed of a test rod body, an anchoring end nut and a tensioning end nut. The test rod body is a steel structure, and its two ends have threaded structures respectively. Corresponding to the tensioning test, one end is defined as the anchoring end and the other end is defined as the tensioning end. Therefore, the anchoring end nut is connected to the anchoring end of the test rod body with a detachable threaded structure, and in the detection test, it is used to cooperate with the anchoring end seat plate of the reaction support. The tensioning end nut is connected to the tensioning end of the test rod body with a detachable threaded structure, and in the detection test, it is used to cooperate with the clamping end of the tensioning rod assembly extending into the tensioning space of the reaction support. In order to increase the clamping force on the tensioning fixture and prevent the test rod assembly from rotating on the tensioning fixture, the outer contours of the aforementioned anchoring end nut and tensioning end nut are respectively rectangular structures.

[0103] The reaction support frame is mainly composed of an anchor end seat plate, a tension end seat plate and four reaction support rods. The anchor end seat plate and the tension end seat plate are arranged in a spacing manner in the tensioning direction to form a tensioning space; in the middle of the top side of the anchor end seat plate, a sunken concave structure is formed to form an open insertion groove 1 with a U-shaped profile structure that connects the inside and outside sides and is used to pass through the test pull rod assembly; in the middle of the top side of the tension end seat plate, a sunken concave structure is formed to form an open insertion groove 2 with a U-shaped profile structure that connects the inside and outside sides and is used to pass through the tensioning pull rod assembly. The open insertion groove 2 basically corresponds to the aforementioned open insertion groove 1 in the tensioning direction. The four reaction support rods are connected between the anchor end seat plate and the tension end seat plate on both sides of the tensioning space in a left-right symmetrical arrangement structure along the tensioning direction, so that the reaction support frame forms a frame structure.

[0104] The jack assembly is mainly composed of a through-type jack, a bracket and a force sensor. Under the adjustment support of the bracket, the jack is arranged on the outside of the tension end seat plate of the above-mentioned reaction support frame, and the center hole of the jack corresponds to the opening through-slot 2 on the above-mentioned tension end seat plate. The force sensor is connected to the jack.

[0105] The tensioning rod assembly is mainly composed of a tensioning rod body, two tensioning end nuts, and a traction head. The tensioning rod body is used to pass through the inner hole of the above-mentioned jack and is connected to the test rod assembly in the above-mentioned reaction support frame. Therefore, corresponding to the tensioning test, one end is defined as the clamping end and the other end is defined as the tensioning end. The clamping end of the tensioning rod body is a split Y-shaped structure. Except for the Y-shaped clamping end of the tensioning rod body, the outer diameter of the tensioning rod body is slightly smaller than the inner hole of the above-mentioned jack and the second open through-groove on the above-mentioned tensioning end seat plate. The tensioning end of the tensioning rod body passes through the inner hole of the jack of the jack assembly and extends out of the end of the jack away from the above-mentioned reaction support frame; in the matching structure of the above-mentioned jack assembly and the reaction support frame, the clamping end of the tensioning rod body needs to pass through the second open through-groove on the above-mentioned tensioning end seat plate and extend into the tensioning space of the above-mentioned reaction support frame. The tensioning end nut 2 is connected to the tensioning end of the tensioning rod body extending out of the jack with a detachable threaded structure, locking the tensioning rod body at the outer end of the jack. The traction head is connected to the Y-shaped head of the clamping end of the tensioning rod body with a detachable structure through a fastening nut, and is located in the tensioning space of the above-mentioned reaction support.

[0106] The traction head is a plate-like structure, with through holes at both ends in the length direction for inserting the Y-shaped head of the tensioning rod body. The Y-shaped head of the tensioning rod body passes through the corresponding through holes at both ends of the traction head and is locked by a fastening nut. At the middle of the top side of the traction head between the Y-shaped heads, a sunken concave structure is formed with an open insertion groove three with a U-shaped profile structure that connects the two sides of the traction head and is used to insert the test rod assembly. The open insertion groove three on the traction head and the open insertion groove one opened on the anchor end seat plate of the reaction support frame have a corresponding spacing in the tensioning direction in the tensioning space.

[0107] When the test rod assembly of the above structure is installed on the clamping end of the above tensioning rod assembly, the tensioning end of the test rod body of the test rod assembly passes through the traction head through the above-mentioned open installation groove three, and the tensioning end nut of the test rod assembly is located on the side of the traction head between the Y-shaped heads, so that the traction head forms a hook and traction on the tensioning end nut of the test rod assembly, and the tensioning end nut of the test rod assembly is matched with the spacing of the anchoring end nut on the traction head plate where the open installation groove three is located.

[0108] When the test tie rod assembly of the above structure is installed on the anchor end seat plate of the above reaction support, the anchor end of the test rod body of the test tie rod assembly extends out of the anchor end seat plate through the above-mentioned open installation groove, and the anchor end nut of the test tie rod assembly is located outside the anchor end seat plate, forming a limit for the test tie rod body in the tensioning direction.

[0109] In the matching structure of the anchor end seat plate and the anchor end nut, a positioning stop is formed with an inner concave structure on the outer wall of the anchor end seat plate along the two sides of the forming contour of the opening threading groove 1, and the width of the positioning stop is slightly larger than the rectangular contour width of the anchor end nut of the above structure, but smaller than the maximum rotation diameter of the anchor end nut of the above structure. When the test tie rod assembly is installed at the reaction support, as described above, the anchor end of the test tie rod body of the test tie rod assembly passes through the opening threading groove 1 and extends outside the anchor end seat plate, and the anchor end nut of the test tie rod assembly is connected to the test tie rod body outside the anchor end seat plate, and the anchor end nut is in the positioning stop, and the positioning stop prevents the anchor end nut from rotating.

[0110] When the tensioning tool of the utility model is used to perform super tensioning and static load mechanical performance testing on the test tie rod assembly, the following process can be implemented:

[0111] Step 1. In the off-position state, assemble the test rod body, anchor end nut, and tension end nut of the test rod assembly into a whole according to the tension length in the reaction support frame;

[0112] Step 2. Insert the entire test tie rod assembly directly and quickly through the open installation slot 3 on the traction head and the open installation slot 1 on the anchor end seat plate with an open connection structure to form a tension limiter;

[0113] It is sufficient to fine-tune the test tie rod assembly compared to the relative position of the reaction support and the tension tie rod assembly;

[0114] Step 3. Start the through-type jack, and convert the force applied by the through-type jack between the tensioning end nut 2 and the tensioning end seat plate into the traction force of the tension rod assembly on the test rod assembly, thereby applying tension force to the test rod assembly on the reaction support frame;

[0115] Complete the super tension or static load mechanical performance test of the current test rod assembly;

[0116] Step 4. Take out the whole test tie rod assembly directly and quickly through the open installation slot 3 on the traction head and the open installation slot 1 on the anchor end base plate with an open connection structure;

[0117] The whole test tie rod assembly is disassembled in the out-of-position state.

[0118] Through the above process, it can be found that the clamping and disassembly of the test tie rod assembly on the tensioning fixture of the utility model are very convenient and fast. The test tie rod assembly is in place for a short time on the tensioning fixture, and the time in place is mainly reflected in the clamping fine-tuning and tensioning force application process, which eliminates the operation of assembling the test tie rod assembly of the split structure as an integral whole in place, and disassembling the test tie rod assembly of the integral structure in place.

[0119] Example 4

[0120] The utility model is a tensioning tool for testing the mechanical properties of a tension rod, especially a high-strength steel tension rod under super tension (static load), which comprises a reaction force support, a jack assembly and a tensioning tension rod assembly.

[0121] The utility model is a test rod assembly used for mechanical property testing, which is mainly composed of a test rod body, an anchoring end nut and a tensioning end nut. The test rod body is a steel structure, and its two ends have threaded structures respectively. Corresponding to the tensioning test, one end is defined as the anchoring end and the other end is defined as the tensioning end. Therefore, the anchoring end nut is connected to the anchoring end of the test rod body with a detachable threaded structure, and in the detection test, it is used to cooperate with the anchoring end seat plate of the reaction support. The tensioning end nut is connected to the tensioning end of the test rod body with a detachable threaded structure, and in the detection test, it is used to cooperate with the clamping end of the tensioning rod assembly extending into the tensioning space of the reaction support. In order to increase the clamping force on the tensioning fixture and prevent the test rod assembly from rotating on the tensioning fixture, the outer contours of the aforementioned anchoring end nut and tensioning end nut are respectively rectangular structures.

[0122] The reaction support frame is mainly composed of an anchor end seat plate, a tensioning end seat plate and four reaction support rods. The anchor end seat plate and the tensioning end seat plate are arranged in a spacing manner in the tensioning direction to form a tensioning space; in the central area of ​​the anchor end seat plate, a waist-shaped hole structure is opened vertically, which connects the inside and outside and is used to pass through the test tie rod assembly; in the middle of the top side of the tensioning end seat plate, a second open insertion groove with a U-shaped profile structure is formed with a sunken concave structure, which connects the inside and outside and is used to pass through the tensioning tie rod assembly. The second open insertion groove basically corresponds to the aforementioned waist-shaped hole in the tensioning direction. The four reaction support rods are connected between the anchor end seat plate and the tensioning end seat plate on both sides of the tensioning space in a left-right symmetrical arrangement structure along the tensioning direction, so that the reaction support frame forms a frame structure.

[0123] The jack assembly is mainly composed of a through-type jack, a bracket and a force sensor. Under the adjustment support of the bracket, the jack is arranged on the outside of the tension end seat plate of the above-mentioned reaction support frame, and the center hole of the jack corresponds to the opening through-slot 2 on the above-mentioned tension end seat plate. The force sensor is connected to the jack.

[0124] The tensioning rod assembly is mainly composed of a tensioning rod body, a tensioning end nut and a traction head. The outer diameter of the tensioning rod body is slightly smaller than the inner hole of the jack and the second open insertion groove on the tensioning end seat plate. It is used to pass through the inner hole of the jack and connect with the test rod assembly in the reaction support frame. Therefore, corresponding to the tensioning test, one end is defined as the clamping end and the other end is defined as the tensioning end. The tensioning end of the tensioning rod body passes through the inner hole of the jack assembly and extends out of the end of the jack away from the reaction support frame; in the matching structure of the jack assembly and the reaction support frame, the clamping end of the tensioning rod body passes through the second open insertion groove on the tensioning end seat plate and extends into the tensioning space of the reaction support frame. The tensioning end nut is connected to the tensioning end of the tensioning rod body extending out of the jack with a detachable threaded structure, and locks the tensioning rod body at the outer end of the jack. The traction head is connected to the clamping end of the tensioning rod body with a detachable threaded structure and is located in the tensioning space of the reaction support frame.

[0125] At the middle of the top side of the traction head, a limited cavity is formed by a sunken concave structure. The horizontal width (relative to the horizontal direction of the tensioning direction) and the sunken depth of the limited cavity are slightly larger than the circumferential contour of the tensioning end nut of the test pull rod assembly, and can accommodate it; the vertical depth (relative to the longitudinal direction of the tensioning direction) of the limited cavity is slightly larger than the thickness of the tensioning end nut of the test pull rod assembly and the outer side of the tensioning end nut. On the side of the limited cavity away from the jack assembly (i.e., the side close to the anchor end seat plate of the reaction support frame), an open insertion groove 3 with a U-shaped profile structure connecting the limited cavity and the outside and used for inserting the test pull rod assembly is formed by the sunken concave structure. The open insertion groove 3 is connected with the above-mentioned limited cavity, so that the limited cavity and the open insertion groove 3 form a T-shaped sunken groove structure on the traction head. The open insertion groove 3 on the traction head and the lower area of ​​the waist-shaped rod insertion hole opened on the anchor end seat plate of the reaction support frame have corresponding spacing in the tensioning direction in the tensioning space.

[0126] When the test rod assembly of the above structure is installed on the clamping end of the above tensioning rod assembly, the tensioning end of the test rod body of the test rod assembly extends into the limiting cavity through the above-mentioned open installation groove three, and the tensioning end nut of the test rod assembly is in the limiting cavity, so that the traction head forms a hook and traction on the tensioning end nut of the test rod assembly, and the tensioning end nut of the test rod assembly is matched with the anchoring end nut through the limiting cavity wall where the open installation groove three is located.

[0127] When the test tie rod assembly of the above structure is installed on the anchor end seat plate of the above reaction support, the anchor end of the test tie rod body without the anchor end nut extends out of the anchor end seat plate through the above waist-shaped through-rod hole, and the anchor end nut is connected to the end of the anchor end of the test tie rod body extending out of the anchor end seat plate, and is located on the outside of the anchor end seat plate, thereby limiting the test tie rod body in the tensioning direction.

[0128] When the tensioning tool of the utility model is used to perform super tensioning and static load mechanical performance testing on the test pull rod assembly, the following process can be implemented:

[0129] Step 1. In the off-position state, assemble the test rod body and the tension end nut of the test rod assembly into a whole, so that the test rod body and the anchor end nut remain separated;

[0130] Step 2. Pass the test tie rod assembly of step 1 through the waist-shaped through-rod hole on the anchor end base plate from the tensioning space to the anchor end;

[0131] Put the test rod assembly after the anchor end is passed through the open installation groove 3 on the traction head, and directly and quickly put it into the limit cavity on the traction head with an open connection structure;

[0132] Assemble the anchor end nut on the test tie rod body outside the anchor end base plate to form a tension limiter;

[0133] Step 3. Start the through-type jack, and convert the force applied by the through-type jack between the tensioning end nut 2 and the tensioning end seat plate into the traction force of the tension rod assembly on the test rod assembly, thereby applying tension force to the test rod assembly on the reaction support frame;

[0134] Complete the super tension or static load mechanical performance test of the current test rod assembly;

[0135] Step 4. Remove the anchor end nut from the test tie rod body outside the anchor end base plate;

[0136] Take out the test tie rod body with the tension end nut 1 directly and quickly through the open insertion slot 3 on the traction head with an open connection structure, and pull it out from the waist-shaped through-rod hole of the anchor end base plate;

[0137] The test tie rod body with the tensioning end nut 1 is separated from the test tie rod body in a dislocated state.

[0138] Through the above process, it can be found that the test tie rod assembly forms a very convenient and fast operation for clamping and disassembly at the tensioning tie rod assembly, and the traditional installation method is basically adopted at the anchor end seat plate of the reaction support. The convenience and efficiency of this solution are obviously not as good as those of Example 1, Example 2, and Example 3, but it is worse than the traditional tensioning tooling, and to a certain extent, it shortens the time that the test tie rod assembly is in place on the tensioning tooling.

[0139] The above embodiments are only used to illustrate the present invention, but not to limit it.

[0140] Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the above embodiments or make equivalent replacements for some of the technical features therein, for example, the reaction support frame has six reaction support rods symmetrically arranged on both sides, etc. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the present invention.

Claims

1. A tensioning tool for testing the mechanical properties of a tie rod, comprising a reaction support (1) and a jack assembly (2); The jack assembly (2) is arranged outside the tensioning end seat plate (12) of the reaction support frame (1); Features: The tensioning tool also includes a tensioning rod assembly (4), the tensioning rod assembly (4) having a tensioning end connected to the jack assembly (2) and a clamping end connected to the test rod assembly (3), the clamping end of the tensioning rod assembly (4) having an open insertion groove (44) with a U-shaped profile structure for inserting the test rod assembly (3); The tensioning rod assembly (4) is connected to the jack assembly (2), and the clamping end of the tensioning rod assembly (4) extends into the tensioning space of the reaction support frame (1), and the clamping end of the tensioning rod assembly (4) and the anchor end seat plate (11) of the reaction support frame (1) form a corresponding spacing in the tensioning direction; in the detection test, the anchor end of the test rod assembly (3) is installed on the anchor end seat plate (11) of the reaction support frame (1), and the tensioning end of the test rod assembly (3) is installed on the clamping end of the tensioning rod assembly (4) through the open installation groove three (44), and the jack assembly (2) applies a tensioning force to the test rod assembly (3) on the reaction support frame (1) through the traction of the tensioning rod assembly (4) on the test rod assembly (3).

2. The tensioning tool for testing the mechanical properties of the tie rod according to claim 1, characterized in that: The clamping end of the tension rod assembly (4) has a traction head (42), and the traction head (42) is provided with an open insertion groove (44) for inserting the test rod assembly (3); When the test rod assembly (3) is installed on the clamping end of the tensioning rod assembly (4), the tensioning end of the test rod body (31) of the test rod assembly (3) extends into or passes through the traction head (42) through the open installation groove three (44), and the tensioning end nut one (33) of the test rod assembly (3) is spaced apart from the structure where the open installation groove three (44) is located and the anchoring end nut (32) is spaced apart.

3. The tensioning tool for testing the mechanical properties of the tie rod according to claim 2, characterized in that: A limiting cavity (43) is formed in a concave structure at the middle of the traction head (42) of the tensioning rod assembly (4), and the side of the limiting cavity (43) away from the jack assembly (2) is connected to the third opening insertion groove (44), and the limiting cavity (43) and the third opening insertion groove (44) form a T-shaped recessed groove structure on the traction head (42); When the test rod assembly (3) is installed on the clamping end of the tensioning rod assembly (4), the tensioning end of the test rod body (31) of the test rod assembly (3) extends into the limiting cavity (43) through the open installation groove three (44), and the tensioning end nut one (33) connected to the tensioning end of the test rod body (31) is located in the limiting cavity (43).

4. The tensioning tool for testing the mechanical properties of the tie rod according to claim 1, 2 or 3, characterized in that: The tensioning rod assembly (4) is mainly composed of a tensioning rod body (41), a second tensioning end nut (45), and a traction head (42); The tensioning end of the tensioning rod body (41) passes through the jack (21) of the jack assembly (2) and extends out of the end of the jack (21) away from the reaction support frame (1); The tensioning end nut 2 (45) is connected to the tensioning end of the tensioning rod body (41) extending out of the jack (21) with a detachable threaded structure; The traction head (42) is connected to the clamping end of the tensioning rod body (41) with a detachable threaded structure; The jack (21) of the jack assembly (2) is a through-type jack.

5. The tensioning tool for testing the mechanical properties of the tie rod according to claim 1, characterized in that: The reaction support frame (1) is mainly composed of an anchoring end seat plate (11), a tensioning end seat plate (12) and a plurality of reaction support rods (13); The anchoring end seat plate (11) and the tensioning end seat plate (12) are arranged in a spaced manner in the tensioning direction to form a tensioning space; A plurality of reaction force support rods (13) are connected between the anchoring end seat plate (11) and the tensioning end seat plate (12) on both sides of the tensioning space in a bilaterally symmetrical arrangement structure along the tensioning direction.

6. The tensioning tool for testing the mechanical properties of the tie rod according to claim 1 or 5, characterized in that: On the anchor end base plate (11) of the reaction support frame (1), an open insertion groove (14) with a U-shaped profile structure is formed in a sunken concave structure for inserting the test pull rod assembly (3); The first open insertion groove (14) on the anchor end base plate (11) corresponds to the third open insertion groove (44) on the clamping end of the tensioning rod assembly (4) in the tensioning space.

7. The tensioning tool for testing the mechanical properties of the tie rod according to claim 6, characterized in that: The outer wall surface of the anchor end seat plate (11) of the reaction support (1) is formed with positioning stoppers (16) in a concave structure along both sides of the molded contour of the opening through-fitting groove (14); When the test rod assembly (3) is installed at the reaction support (1), the anchoring end of the test rod body (31) of the test rod assembly (3) passes through the open installation groove (14) and extends outside the anchoring end seat plate (11). The anchoring end nut (32) of the test rod assembly (3) is connected to the test rod body (31) outside the anchoring end seat plate (11), and the anchoring end nut (32) is located in the positioning stop (16). The positioning stop (16) prevents the anchoring end nut (32) from rotating.

8. The tensioning tool for testing the mechanical properties of the tie rod according to claim 1 or 5, characterized in that: On the tensioning end seat plate (12) of the reaction support frame (1), a second opening insertion groove (15) with a U-shaped profile structure is formed in a sunken concave structure for inserting the tensioning rod assembly (4); When the clamping end of the tensioning rod assembly (4) extends into the tensioning space of the reaction support (1), the tensioning rod body (41) of the tensioning rod assembly (4) passes through the tensioning end seat plate (12) via the second open insertion groove (15).

9. The tensioning tool for testing the mechanical properties of the tie rod according to claim 1, characterized in that: The test rod assembly (3) is mainly composed of a test rod body (31), an anchoring end nut (32) and a tensioning end nut (33); The anchor end nut (32) is connected to the anchor end of the test tie rod body (31) with a threaded structure. During the detection test, the anchor end nut (32) cooperates with the anchor end base plate (11) of the reaction support frame (1); The tensioning end nut (33) is connected to the tensioning end of the test rod body (31) by a threaded structure. During the inspection test, the tensioning end nut (33) cooperates with the clamping end of the tensioning rod assembly (4).

10. The tensioning tool for testing the mechanical properties of the tie rod according to claim 9, characterized in that: The outer contours of the anchoring end nut (32) and the tensioning end nut (33) are respectively rectangular structures.

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