CN217372233U

CN217372233U - Bolt fastening test structure

Info

Publication number: CN217372233U
Application number: CN202221517505.1U
Authority: CN
Inventors: 吴颖怡; 陈忱晨; 陈静珊; 陈敏珊
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-09-06
Anticipated expiration: 2032-06-17

Abstract

The utility model provides a bolt-up test structure, the on-line screen storage device comprises a base, two fixed orificess have been seted up to base upper surface symmetry, base upper surface middle part position fixedly connected with is spacing, spacing upper surface sets up the lower breach that is used for alternating test bolt, spacing interior ann has inserted first clamp splice and second clamp splice, first clamp splice is through two connecting screw and second clamp splice fixed connection, first semicircle groove has been seted up to first clamp splice towards the one side of second clamp splice, second clamp splice is seted up towards the one side of second clamp splice with first semicircle groove matched with second semicircle groove, first semicircle inslot surface and second semicircle inslot surface all process have with test bolt matched with internal thread, the utility model discloses following beneficial effect has: the broken bolt part can be smoothly taken out from the threaded connection part.

Description

Bolt fastening test structure

Technical Field

The utility model relates to a bolt-up test structure belongs to bolt test field.

Background

The tensile strength of the screwed bolt is one of the tests of the tightness of the bolt, one end of the bolt is screwed in a threaded hole on a carrier, and the head of the bolt is stretched by utilizing driving components such as a hydraulic cylinder and the like, so that the tensile strength of the screw is conveniently tested. At present, after one end of a bolt is screwed into a threaded hole in a carrier, when the bolt breaks in the stretching process, a part of the bolt remains in the threaded hole in the carrier, so that the bolt remaining in the threaded hole is difficult to take out, and the subsequent use is influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a bolt-up test structure to solve the problem that proposes in the above-mentioned background art, the utility model discloses make cracked bolt position take out from the threaded connection position smoothly.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a bolt fastening test structure comprises a base, wherein two fixing holes are symmetrically formed in the upper surface of the base, a limiting frame is fixedly connected to the middle position of the upper surface of the base, the limiting frame is of an L-shaped structure, a lower notch for inserting a test bolt is formed in the upper surface of the limiting frame, a first clamping block and a second clamping block are inserted into the limiting frame, the first clamping block is fixedly connected with the second clamping block through two connecting screws, a first semicircular groove is formed in one surface, facing the second clamping block, of the first clamping block, a second semicircular groove matched with the first semicircular groove is formed in one surface, facing the second clamping block, of the second clamping block, internal threads matched with the test bolt are machined in the inner surface of the first semicircular groove and the inner surface of the second semicircular groove, a U-shaped frame is arranged on the upper side of the limiting frame, two ends of the U-shaped frame are fixedly connected with the base, and a hydraulic cylinder which is vertically arranged is fixedly connected to the middle position of the upper surface of the U-shaped frame, the movable end of the hydraulic cylinder extends into the U-shaped frame and is provided with a limiting part for stretching the test bolt.

Furthermore, two round holes are symmetrically formed in one surface, facing the second clamping block, of the first clamping block, two threaded blind holes aligned with the round holes are symmetrically formed in one surface, facing the first clamping block, of the second clamping block, and the connecting screw penetrates through the round holes and is in threaded connection with the threaded blind holes.

Further, the locating part includes U type frame, pneumatic cylinder activity end fixedly connected with goes up U type frame, be equipped with the stock tensiometer in going up U type frame, the stock tensiometer cover is established on the connecting rod, connecting rod upper end fixedly connected with disc, the disc sets up at the stock tensiometer upside, it has seted up the perforation to go up U type frame lower surface, the connecting rod lower extreme runs through U type frame under perforation and fixedly connected with, U type frame lower surface offers the last breach that is used for alternating test bolt down.

Furthermore, a screw hole is formed in the middle of the lower surface of the disc, an external thread is machined on the outer surface of the upper end of the connecting rod, and one end of the external thread machined by the connecting rod is connected into the screw hole in a threaded mode.

Furthermore, the upper surface of the U-shaped frame is fixedly connected with a vertically arranged pole, and two limiting ropes are tied to the outer surface of the pole in a tying mode.

Furthermore, a through hole is formed in the position, where the hydraulic cylinder is installed on the upper surface of the U-shaped frame, and the movable end of the hydraulic cylinder penetrates through the through hole and extends into the U-shaped frame.

The utility model has the advantages that:

1. processing the first semicircular groove with the internal thread on the first clamping block and processing the second semicircular groove with the internal thread on the second clamping block, then utilizing the connecting screw to connect the first clamping block and the second clamping block, dividing the threaded hole matched with the test bolt into two parts, leaving one part of the fractured test bolt in the space formed by the first semicircular groove and the second semicircular groove, detaching the connecting screw and then separating the first clamping block and the second clamping block, realizing that one part of the fractured test bolt remaining between the first semicircular groove and the second semicircular groove is taken out quickly, and facilitating subsequent reutilization.

2. With two spacing rope difference tethers two oil pipe tip on the pneumatic cylinder on the post, and then the post plays the restriction jointly with spacing rope and connects the position at pneumatic cylinder oil pipe end portion, when oil pipe breaks away from with the pneumatic cylinder, plays the effect of restriction oil pipe end portion whipping scope, improves the security.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a bolt fastening test structure of the present invention;

FIG. 2 is an enlarged view of the position A of the bolt fastening test structure of the present invention;

FIG. 3 is a schematic view illustrating the assembly of a first clamping block and a second clamping block in a bolt fastening test structure according to the present invention;

FIG. 4 is a perspective view of a first clamping block in a bolt tightening test structure according to the present invention;

FIG. 5 is a perspective view of a second clamping block in a bolt tightening test structure according to the present invention;

FIG. 6 is a perspective view of an upper U-shaped frame in a bolt tightening test structure according to the present invention;

FIG. 7 is a perspective view of a lower U-shaped frame in a bolt tightening test structure according to the present invention;

in the figure: 1-base, 2-fixed hole, 3-U-shaped frame, 4-lower U-shaped frame, 5-connecting rod, 6-anchor rod tension meter, 7-upper U-shaped frame, 8-hydraulic cylinder, 9-limiting rope, 10-column rod, 11-disc, 12-first clamping block, 13-second clamping block, 14-lower notch, 15-limiting frame, 16-connecting screw, 17-first semicircular groove, 18-circular hole, 19-second semicircular groove, 20-threaded blind hole, 21-through hole and 22-upper notch.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a bolt-up test structure, includes base 1, and two fixed orificess 2 have been seted up to base 1 upper surface symmetry, utilize fixed orifices 2 to fix base 1 in required position department, accomplish the fixed of base 1 position.

Referring to fig. 1, 2, 3, 4 and 5, a limiting frame 15 is fixedly connected to the middle of the upper surface of the base 1, the limiting frame 15 is of an L-shaped structure, a lower notch 14 for inserting a test bolt is formed in the upper surface of the limiting frame 15, a first clamping block 12 and a second clamping block 13 are inserted into the limiting frame 15, the first clamping block 12 is fixedly connected with the second clamping block 13 through two connecting screws 16, two round holes 18 are symmetrically formed in one surface of the first clamping block 12 facing the second clamping block 13, two threaded blind holes 20 aligned with the round holes 18 are symmetrically formed in one surface of the second clamping block 13 facing the first clamping block 12, the connecting screws 16 penetrate through the round holes 18 and are in threaded connection with the threaded blind holes 20, and connection of the first clamping block 12 and the second clamping block 13 is completed.

Referring to fig. 1, 2, 3, 4 and 5, a first semicircular groove 17 is formed in a surface of the first clamping block 12 facing the second clamping block 13, a second semicircular groove 19 matched with the first semicircular groove 17 is formed in a surface of the second clamping block 13 facing the second clamping block 13, internal threads matched with the test bolt are formed in both the inner surface of the first semicircular groove 17 and the inner surface of the second semicircular groove 19, the first semicircular groove 17 with internal threads is formed in the first clamping block 12, the second semicircular groove 19 with internal threads is formed in the second clamping block 13, the first clamping block 12 and the second clamping block 13 are connected through a connecting screw 16, the threaded hole matched with the test bolt is divided into two parts, when a part of the broken test bolt remains in a space formed by the first semicircular groove 17 and the second semicircular groove 19, the first clamping block 12 and the second clamping block 13 are separated after the connecting screw 16 is removed, and the broken test bolt remains between the first semicircular groove 17 and the second semicircular groove 19, so that a part of the broken test bolt can be rapidly taken out And therefore, subsequent reutilization is facilitated.

Referring to fig. 1, spacing 15 upside is equipped with U type frame 3, the both ends of U type frame 3 all with base 1 fixed connection, U type frame 3 upper surface middle part position fixedly connected with vertical arrangement's pneumatic cylinder 8, the through-hole has been seted up to U type frame 3 upper surface mounting pneumatic cylinder 8's position department, pneumatic cylinder 8 expansion end runs through the through-hole and extends to in the U type frame 3, the through-hole provides installation space for pneumatic cylinder 8, U type frame 3 upper surface fixedly connected with vertical arrangement's post 10, post 10 surface tether has two spacing ropes 9, tie two oil pipe tip on pneumatic cylinder 8 with two spacing ropes 9 on the post 10 respectively, and then post 10 plays the restriction jointly with spacing rope 9 and connects the position at pneumatic cylinder 8 oil pipe end portion, when oil pipe and pneumatic cylinder 8 break away from, play the effect of restriction oil pipe tip swing range, the security is improved.

Referring to fig. 1, 6 and 7, an upper U-shaped frame 7 is fixedly connected to a movable end of a hydraulic cylinder 8, an anchor rod tension meter 6 is arranged in the upper U-shaped frame 7, the anchor rod tension meter 6 is sleeved on a connecting rod 5, a disc 11 is fixedly connected to an upper end of the connecting rod 5, a screw hole is formed in the middle of the lower surface of the disc 11, an external thread is processed on the outer surface of the upper end of the connecting rod 5, one end of the connecting rod 5, which is processed with the external thread, is screwed into the screw hole, so that the connecting rod 5 and the disc 11 can be conveniently disassembled and assembled, the disc 11 is arranged on the upper side of the anchor rod tension meter 6, a through hole 21 is formed in the lower surface of the upper U-shaped frame 7, the lower end of the connecting rod 5 penetrates through the through hole 21 and is fixedly connected with a lower U-shaped frame 4, an upper gap 22 for inserting a test bolt is formed in the lower gap 22, the first semicircular groove 17 and the second semicircular groove 19, and then the hydraulic cylinder 8 is controlled to contract, u type frame 7 upwards removes in the pneumatic cylinder 8 drive, and lower U type frame 4 is unchangeable with the relative position of base 1, and disc 11 extrusion stock tensiometer 6 this moment makes stock tensiometer 6 show the tensile force numerical value, records stock tensiometer 6's numerical value after the examination bolt fracture, is convenient for record the tensile strength of testing bolt.

Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.

Claims

1. The utility model provides a bolt-up test structure, includes base (1), its characterized in that: the upper surface of the base (1) is symmetrically provided with two fixing holes (2), the middle position of the upper surface of the base (1) is fixedly connected with a limiting frame (15), the limiting frame (15) is of an L-shaped structure, the upper surface of the limiting frame (15) is provided with a lower notch (14) for inserting a test bolt, a first clamping block (12) and a second clamping block (13) are inserted into the limiting frame (15), the first clamping block (12) is fixedly connected with the second clamping block (13) through two connecting screws (16), one surface of the first clamping block (12) facing the second clamping block (13) is provided with a first semicircular groove (17), one surface of the second clamping block (13) facing the second clamping block (13) is provided with a second semicircular groove (19) matched with the first semicircular groove (17), and the inner surfaces of the first semicircular groove (17) and the second semicircular groove (19) are both provided with internal threads matched with the test bolt, spacing (15) upside is equipped with U type frame (3), the both ends of U type frame (3) all with base (1) fixed connection, U type frame (3) upper surface middle part fixedly connected with vertical arrangement's pneumatic cylinder (8), pneumatic cylinder (8) expansion end extends to in U type frame (3) and installs the locating part that is used for tensile test bolt.

2. The bolt-fastening test structure according to claim 1, wherein: two round holes (18) are symmetrically formed in one surface, facing the second clamping block (13), of the first clamping block (12), two threaded blind holes (20) aligned with the round holes (18) are symmetrically formed in one surface, facing the first clamping block (12), of the second clamping block (13), and the connecting screw (16) penetrates through the round holes (18) and is in threaded connection with the threaded blind holes (20).

3. The bolt-fastening test structure according to claim 1, wherein: the locating part includes U type frame (7), pneumatic cylinder (8) movable end fixedly connected with goes up U type frame (7), upward be equipped with stock tensiometer (6) in U type frame (7), stock tensiometer (6) cover is established on connecting rod (5), connecting rod (5) upper end fixedly connected with disc (11), disc (11) set up at stock tensiometer (6) upside, go up U type frame (7) lower surface and seted up perforation (21), U type frame (4) under connecting rod (5) lower extreme run through perforation (21) and fixedly connected with, last breach (22) that are used for interlude test bolt are seted up to U type frame (4) lower surface down.

4. A bolt-tightening test structure according to claim 3, wherein: the disc (11) is characterized in that a screw hole is formed in the middle of the lower surface of the disc (11), an external thread is processed on the outer surface of the upper end of the connecting rod (5), and one end of the connecting rod (5) for processing the external thread is connected into the screw hole in a threaded mode.

5. The bolt-fastening test structure according to claim 1, wherein: the upper surface of the U-shaped frame (3) is fixedly connected with a vertically arranged post rod (10), and two limiting ropes (9) are tied to the outer surface of the post rod (10).

6. The bolt-fastening test structure according to claim 1, wherein: the U-shaped frame (3) upper surface mounting pneumatic cylinder (8) position department has seted up the through-hole, pneumatic cylinder (8) expansion end runs through the through-hole and extends to in U-shaped frame (3).