Tool for structural layer material strength drawing instrument

Abstract

The utility model discloses a tool for a structural layer material strength drawing instrument. The tool comprises an upper bottom plate, a lower bottom plate, a supporting assembly, a fixing cylinder and a plurality of jacking assemblies arranged in the radial direction of the fixing cylinder. The supporting assembly is fixedly connected between the upper bottom plate and the lower bottom plate; a through hole is formed in the upper bottom plate; one end of the fixed cylinder is fixedly connected to the lower bottom plate; the jacking assembly comprises a bolt and a jacking block, the bolt penetrates through the cylinder wall of the fixing cylinder and is in threaded connection with the fixing cylinder, and the end, extending into the fixing cylinder, of the bolt is rotationally connected with the jacking block; a cushion layer is detachably connected to the side, away from the bolt, of the ejector block. According to the device, the cylindrical sample can be effectively fixed indoors, and the research of a pull-out test can be conveniently carried out indoors.

Description

Technical Field

[0001] The present application relates to the technical field of pullers, and in particular to a tooling for a strength puller for structural layer materials. Background Art

[0002] Asphalt pavement or bridge deck asphalt pavement is often affected by weather, temperature, traffic, materials and pavement structure design, asphalt pavement or bridge deck will inevitably have early structural interface damage such as rutting, pavement structure layer displacement, waterproof layer structure sliding, etc. These diseases have a serious impact on driving speed, passenger comfort, pavement service life and traffic safety, resulting in the need to deal with rutting, displacement, interlayer sliding and other diseases soon after completion and opening to traffic, causing adverse social impact. In order to facilitate the experimental research and analysis of the bonding condition between asphalt pavement layers of asphalt pavement or bridge deck, it is necessary to study the asphalt interlayer bonding materials, mix ratio and interlayer treatment in the laboratory.

[0003] Pull-out equipment is now mostly used for pulling asphalt interlayer structural materials of on-site roads and bridges. The pulling process on site is generally as follows: first, a ring groove needs to be drilled on the road surface or bridge deck by a core drill to form a cylinder, and then the pull-out instrument is supported on the road surface or bridge deck, and the pull head of the pull-out instrument is bonded to the top of the cylinder. After the bonding is complete, the pull-out instrument is used to pull it upward. However, in the prior art, pull-out instruments are rarely used for indoor research, because in indoor research, the cylindrical sample needs to be fixed indoors before the pull-out test can be carried out by the pull-out instrument. It is inconvenient to fix the cylindrical sample indoors, and the cylindrical sample often becomes loose during the indoor pulling process, which affects the indoor pulling test. Utility Model Content

[0004] The embodiment of the present application provides a tooling for a structural layer material strength pulling instrument, thereby solving the technical problems in the prior art that when conducting indoor research, the cylindrical specimen needs to be fixed indoors before a pulling test can be performed using a pulling instrument, and it is inconvenient to fix the cylindrical specimen indoors, and the cylindrical specimen often becomes loose during the indoor pulling process. The present application thus achieves effective fixing of the cylindrical specimen indoors, and allows convenient research on pulling tests indoors.

[0005] An embodiment of the utility model provides a tool for a structural layer material strength pulling instrument, comprising an upper base plate, a lower base plate, a support assembly, a fixed cylinder and a plurality of tightening assemblies arranged along the radial direction of the fixed cylinder; the support assembly is fixedly connected between the upper base plate and the lower base plate; the upper base plate is provided with a through opening; one end of the fixed cylinder is fixedly connected to the lower base plate; the tightening assembly comprises a bolt and a top block, the bolt passes through the cylinder wall of the fixed cylinder and is threadedly connected to the fixed cylinder, the end of the bolt extending into the interior of the fixed cylinder is rotatably connected to the top block; the side of the top block away from the bolt is detachably connected to a cushion layer.

[0006] In one possible implementation, the support assembly includes multiple screw rods and multiple nuts; one end of the screw rod is fixedly connected to the lower base plate, and the other end of the screw rod passes through the upper base plate; the screw rod is threadedly connected to the nut, and the screw rod and the upper base plate are fixedly connected via the nut.

[0007] In a possible implementation, the tightening components are arranged in multiple layers along the length direction of the fixing tube, and the multiple tightening components in the upper layer and the multiple tightening components in the lower layer are arranged alternately up and down.

[0008] In a possible implementation manner, a side of the top block away from the bolt is configured as an arc-shaped surface.

[0009] In a possible implementation, the cushion layer includes a first arc-shaped plate and a second arc-shaped plate; the first arc-shaped plate and the second arc-shaped plate are respectively detachably connected to a side of the top block away from the bolt.

[0010] In a possible implementation manner, the first curved plate and the second curved plate are both made of elastic material.

[0011] In a possible implementation, a clamping piece is provided between the top block at the top and the outer side of the cushion layer; the clamping piece includes a first clamping block, a second clamping block and a clamping rod; the first clamping block is fixedly connected to the outer sides of the top ends of the first arc plate and the second arc plate; the second clamping block is fixedly connected to the top end of the top block at the top, and a socket is provided on the second clamping block; the clamping rod is fixedly connected to the first clamping block and can be plugged into the socket.

[0012] One or more technical solutions provided in the embodiments of the present utility model have at least the following technical effects or advantages:

[0013] The embodiment of the utility model adopts an upper base plate, a lower base plate, a support assembly, a fixed cylinder and a plurality of tightening assemblies arranged along the radial direction of the fixed cylinder, and the support assembly is fixedly connected between the upper base plate and the lower base plate to form a support frame of the entire tooling, and the fixed cylinder is fixedly connected to the lower base plate. The tightening assembly is arranged to include bolts and a top block, and the bolts and the top block can be used to tighten the outer side of the cylindrical sample placed inside the fixed cylinder, so that the cylindrical sample can be fixed in the fixed cylinder. By arranging a cushion layer on the inner side of the top block, the cushion layer is in contact with the outer side of the cylindrical sample, and the contact area between the top block and the cylindrical sample can be further increased, thereby increasing the cylindrical sample being The friction force after tightening can effectively fix the cylindrical specimen in the fixed tube; during indoor tests, the bottom end of the puller is fixedly connected to the upper base plate, and then the pull head of the puller can pass through the through opening and bonded to the top of the cylindrical specimen, so as to carry out subsequent pulling tests; it effectively solves the technical problems in the prior art that when conducting indoor research, the cylindrical specimen needs to be fixed indoors before the pulling test can be carried out through the puller, it is inconvenient to fix the cylindrical specimen indoors, and the cylindrical specimen often becomes loose during the indoor pulling process, and realizes the research that can effectively fix the cylindrical specimen indoors and can conveniently carry out pulling tests indoors. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 An axonometric diagram of a tooling for a structural layer material strength pulling instrument provided in an embodiment of the present application;

[0016] Figure 2 A top view of the fixing cylinder, the tightening assembly, the cushion layer and the clamping member provided in the embodiment of the present application;

[0017] Figure 3 An axonometric view of the fixing cylinder, the tightening assembly, the cushion layer and the clamping member provided in the embodiment of the present application;

[0018] Figure 4 for Figure 3 Axonometric drawing of the cushion and top block before installation.

[0019] Icons: 1-upper base plate; 11-through port; 2-lower base plate; 3-support assembly; 31-screw rod; 32-nut; 4-fixing cylinder; 5-tightening assembly; 51-bolt; 52-top block; 521-arc surface; 6-cushion; 61-first arc plate; 62-second arc plate; 7-clamping piece; 71-first clamping block; 72-second clamping block; 721-socket; 73-clamping rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0022] Reference Figure 1-4The embodiment of the utility model provides a tool for a structural layer material strength pulling instrument, comprising an upper base plate 1, a lower base plate 2, a support assembly 3, a fixed cylinder 4 and a plurality of tightening assemblies 5 arranged along the radial direction of the fixed cylinder 4; the support assembly 3 is fixedly connected between the upper base plate 1 and the lower base plate 2; the upper base plate 1 is provided with a through opening 11; one end of the fixed cylinder 4 is fixedly connected to the lower base plate 2; the tightening assembly 5 comprises a bolt 51 and a top block 52, the bolt 51 passes through the cylinder wall of the fixed cylinder 4 and is threadedly connected to the fixed cylinder 4, and the end of the bolt 51 extending into the interior of the fixed cylinder 4 is rotatably connected to the top block 52; the side of the top block 52 away from the bolt 51 is detachably connected to a cushion layer 6. In the embodiment of the present application, when conducting a pull-out test, it is first necessary to place the cylindrical specimen in the fixed tube 4, and then by screwing a plurality of bolts 51, the top block 52 and the cushion layer 6 are driven by the bolts 51 to approach the cylindrical specimen until they contact and squeeze the outside of the cylindrical specimen, and finally the cylindrical specimen is pressed tightly in the fixed tube 4. By setting the top block 52 and the cushion layer 6, the contact area with the outside of the cylindrical specimen can be increased, thereby effectively improving the friction force of the cylindrical specimen after being pressed tightly; then the base of the puller is fixedly installed on the upper base plate 1, and then the puller is controlled so that the pull head of the puller passes through the through opening 11 and adheres to the top of the cylindrical specimen, and finally the pull-out test of the cylindrical specimen is realized by controlling the puller to pull upward. In the embodiment of the present application, the materials of the upper base plate 1, the lower base plate 2, and the fixed tube 4 are all made of steel.

[0023] Reference Figure 1 , the support assembly 3 includes a plurality of screw rods 31 and a plurality of nuts 32; one end of the screw rod 31 is fixedly connected to the lower base plate 2, and the other end of the screw rod 31 passes through the upper base plate 1; the screw rod 31 is threadedly connected to the nut 32, and the screw rod 31 and the upper base plate 1 are fixedly connected by the nut 32. Specifically, in the embodiment of the present application, the support assembly 3 includes four screw rods 31 and eight nuts 32, and the four screw rods 31 are respectively arranged at the four corners of the upper base plate 1 and the lower base plate 2, and the bottom ends of the four screw rods 31 are fixed to the lower base plate 2 by welding or threaded connection, and the top ends of the four screw rods 31 pass through the upper base plate 1, and each screw rod 31 is fixed on the upper and lower sides of the upper base plate 1 by two nuts 32, and the height between the upper base plate 1 and the lower base plate 2 can be adjusted according to actual needs.

[0024] Reference Figure 1 , 34, the tightening components 5 are arranged in multiple layers along the length direction of the fixed tube 4, and the multiple tightening components 5 in the upper layer and the multiple tightening components 5 in the lower layer are arranged alternately up and down. In the embodiment of the present application, two layers of tightening components 5 are arranged, and the number of tightening components 5 in each layer is three, that is, the upper and lower layers are arranged alternately by six bolts 51, respectively. Through such an arrangement, the outer side of the cylindrical sample inside the fixed tube 4 can be tightened by the six bolts 51, so that the outer side of the cylindrical sample can be evenly stressed.

[0025] Reference Figure 4 , the side of the top block 52 away from the bolt 51 is set as an arc surface 521. In the embodiment of the present application, the inner side of the top block 52 is further set as an arc surface 521. When the top block 52 and the cushion layer 6 contact the outside of the cylindrical specimen, the contact area with the outside of the cylindrical specimen can be increased by the set arc surface 521.

[0026] Reference Figure 2-4 The cushion layer 6 includes a first curved plate 61 and a second curved plate 62; the first curved plate 61 and the second curved plate 62 are respectively detachably connected to the side of the top block 52 away from the bolt 51. In the embodiment of the present application, the cushion layer 6 specifically includes the first curved plate 61 and the second curved plate 62, and the first curved plate 61 and the second curved plate 62 are in contact with the outer side of the cylindrical specimen, which can effectively increase the contact area of ​​the cylindrical specimen after being tightened.

[0027] Reference Figure 4 The first curved plate 61 and the second curved plate 62 are both made of elastic material. In the embodiment of the present application, the first curved plate 61 and the second curved plate 62 are made of rubber material, and the curvature of the first curved plate 61 and the second curved plate 62 can be adaptively fitted according to the outer diameter of the cylindrical sample.

[0028] Reference Figure 2-4A clamping piece 7 is provided between the top block 52 at the top and the outer side of the cushion layer 6; the clamping piece 7 includes a first clamping block 71, a second clamping block 72 and a clamping rod 73; the first clamping block 71 is fixedly connected to the outer side of the top ends of the first arc plate 61 and the second arc plate 62; the second clamping block 72 is fixedly connected to the top end of the top block 52 at the top, and a socket 721 is provided on the second clamping block 72; the clamping rod 73 is fixedly connected to the first clamping block 71, and can be plugged into the socket 721. In the embodiment of the present application, the clamping member 7 is specifically provided, the purpose is to facilitate the installation of the first curved plate 61 and the second curved plate 62 on the top block 52; taking the example of three top blocks 52 in each layer, the top outer side of the first curved plate 61 is fixedly connected to a first clamping block 71, and the top outer side of the second curved plate 62 is fixedly connected to two first clamping blocks 71. When installing the cushion layer 6, the clamping rod 73 on the first curved plate 61 is correspondingly inserted into the socket 721 on the second clamping block 72 on one of the top top blocks 52, so that the bottom outer side of the first curved plate 61 is connected to the The inner sides of the two top blocks 52 of the next layer are in contact (the outer side of the top end of the first curved plate 61 is in contact with the inner side of a top block 52 of the previous layer), thereby realizing the installation of the first curved plate 61. The two clamping rods 73 at the top end of the second curved plate 62 are respectively inserted into the sockets 721 on the two second clamping blocks 72 on the two topmost top blocks 52, so that the outer side of the bottom end of the second curved plate 62 is in contact with the inner side of a top block 52 of the next layer (the outer side of the top end of the second curved plate 62 is in contact with the inner sides of the two top blocks 52 of the previous layer), thereby realizing the installation of the second curved plate 62.

[0029] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0030] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A tooling for a structural layer material strength pulling instrument, characterized in that: It comprises an upper base plate (1), a lower base plate (2), a support assembly (3), a fixing cylinder (4), and a plurality of tightening assemblies (5) arranged along the radial direction of the fixing cylinder (4); The support assembly (3) is fixedly connected between the upper base plate (1) and the lower base plate (2); The upper base plate (1) is provided with a through opening (11); One end of the fixed tube (4) is fixedly connected to the lower base plate (2); The tightening assembly (5) comprises a bolt (51) and a top block (52); the bolt (51) penetrates through the wall of the fixing tube (4) and is threadedly connected to the fixing tube (4); the end of the bolt (51) extending into the fixing tube (4) is rotatably connected to the top block (52); A cushion layer (6) is detachably connected to a side of the top block (52) away from the bolt (51).

2. The tooling for the structural layer material strength drawing instrument according to claim 1 is characterized in that: The support assembly (3) comprises a plurality of screw rods (31) and a plurality of nuts (32); One end of the screw rod (31) is fixedly connected to the lower base plate (2), and the other end of the screw rod (31) passes through the upper base plate (1); The screw rod (31) is threadedly connected to the nut (32), and the screw rod (31) and the upper base plate (1) are fixedly connected via the nut (32).

3. The tooling for the structural layer material strength drawing instrument according to claim 1 or 2, characterized in that: The tightening components (5) are arranged in multiple layers along the length direction of the fixing tube (4), and the multiple tightening components (5) in the upper layer and the multiple tightening components (5) in the lower layer are arranged alternately up and down.

4. The tooling for the structural layer material strength drawing instrument according to claim 1 is characterized in that: A side of the top block (52) away from the bolt (51) is provided as an arc-shaped surface (521).

5. The tooling for the structural layer material strength drawing instrument according to claim 1 is characterized in that: The cushion layer (6) comprises a first curved plate (61) and a second curved plate (62); The first arc-shaped plate (61) and the second arc-shaped plate (62) are respectively detachably connected to a side of the top block (52) away from the bolt (51).

6. The tooling for the structural layer material strength drawing instrument according to claim 5 is characterized in that: The first arc-shaped plate (61) and the second arc-shaped plate (62) are both made of elastic material.

7. The tooling for the structural layer material strength drawing instrument according to claim 5, characterized in that: A clamping piece (7) is provided between the top block (52) at the top and the outer side of the cushion layer (6); The clamping member (7) comprises a first clamping block (71), a second clamping block (72) and a clamping rod (73); The first clamping block (71) is fixedly connected to the outer sides of the top ends of the first arc-shaped plate (61) and the second arc-shaped plate (62); The second clamping block (72) is fixedly connected to the top of the top block (52) at the top, and a plug hole (721) is provided on the second clamping block (72); The clamping rod (73) is fixedly connected to the first clamping block (71) and can be plugged into the insertion hole (721).

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