CN211292373U

CN211292373U - Bolt ball joint load detection device

Info

Publication number: CN211292373U
Application number: CN201922125114.XU
Authority: CN
Inventors: 周振宇; 左慧英; 王旭雁; 郄文婷; 苏文娟
Original assignee: BAOTOU RESEARCH INSTITUTE OF METALLURGICAL CONSTRUCTION
Current assignee: BAOTOU RESEARCH INSTITUTE OF METALLURGICAL CONSTRUCTION
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-08-18
Anticipated expiration: 2029-12-02

Abstract

The utility model discloses a bolt ball joint load detection device, which comprises a horizontal tensile testing machine, wherein the horizontal tensile testing machine is provided with a fixed bedplate, a movable bedplate and a hydraulic cylinder, the upper end surface of one end of the fixed bedplate, which is close to the movable bedplate, is provided with a pin hole, and the upper end surface of one end of the movable bedplate, which is close to the fixed bedplate, is also provided with a pin hole; the pull ring comprises a U-shaped part and a transverse plate part, and the transverse plate part is provided with a connecting through hole; the fixed platen and the movable platen are detachably provided with fixed shafts in pin holes, the fixed platen and the movable platen are respectively provided with a fixed shaft in the pin hole, the two fixed shafts respectively penetrate through the U-shaped part of one pull ring, and the two pull rings are respectively connected with a bolt ball through a bolt of which the threaded rod part penetrates through the connecting through hole. The utility model discloses can conveniently use horizontal tensile testing machine to realize the clamping to the bolt ball node, the horizontal tensile testing machine of convenient to use carries out the tensile force detection of bolt ball.

Description

Bolt ball joint load detection device

Technical Field

The utility model relates to a bolt ball node detects technical field, specifically is a bolt ball node load detection device.

Background

The steel structure grid structure is used for building a large-space building, and starts in the last century, is flourishing in the modern novel structural form, has the advantages of novel structure, reasonable stress, light dead weight, low steel consumption and the like, and is widely applied to large stadiums, exhibition centers, movie theaters, markets, airport buildings, waiting halls, factory workshops, warehouses, television towers and the like. The main components of the steel structure grid structure are bolt ball joints.

As shown in fig. 1, the bolt-ball joint is a schematic structural diagram of a bolt-ball joint in the prior art, and as can be seen from the figure, the bolt-ball joint is composed of parts such as a bolt ball, a high-strength bolt, a sleeve, a fastening screw, and a cone head or a sealing plate, the number of the parts such as the high-strength bolt is set according to the use requirement, and the parts for the bolt-ball joint are processed and welded in a processing factory and can be conveniently installed on site.

The existing tension testing machine which is frequently used is vertical, the vertical tension testing machine is convenient to clamp the bolt ball compared with the horizontal tension testing machine, but the stroke of the vertical tension testing machine is short, the vertical tension testing machine is only suitable for testing and detecting the bolt ball with small volume, the tension testing machine is inconvenient to unfold for the bolt ball with large volume, and the horizontal tension testing machine is long in stroke, but is inconvenient to clamp the bolt ball.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bolt ball node load detection device can conveniently use horizontal tensile testing machine to realize the clamping to the bolt ball, and the horizontal tensile testing machine of convenient to use carries out the tensile testing of bolt ball.

The utility model discloses a realize like this: a bolt ball node load detection device comprises a horizontal tensile testing machine, wherein a fixed platen, a movable platen and a hydraulic cylinder are arranged on the horizontal tensile testing machine, the movable platen is fixedly connected with an extension rod of the hydraulic cylinder, a pin hole is formed in the upper end face of one end, close to the movable platen, of the fixed platen, a pin hole is also formed in the upper end face of one end, close to the fixed platen, of the movable platen, and the pin hole formed in the fixed platen and the pin hole formed in the movable platen are arranged along the moving direction of the movable platen; the utility model also comprises a pull ring, the pull ring comprises a U-shaped part and a transverse plate part, the transverse plate part is arranged at the U-shaped opening part of the U-shaped part and is of an integrated structure, and the transverse plate part is provided with a connecting through hole; the fixing device comprises a fixed platen, a movable platen, a fixed shaft, a pull ring, a bolt ball, a bolt head and two bolts, wherein the fixed shaft is detachably arranged in pin holes of the fixed platen and the movable platen, the upper end of the fixed shaft is higher than the upper end surfaces of the fixed platen and the movable platen, the fixed shaft is arranged in the pin hole of the fixed platen and the pin hole of the movable platen, the two fixed shafts respectively penetrate through a U-shaped part of the pull ring, the two pull rings are respectively connected with the bolt ball through the bolt of which the threaded rod part penetrates through a connecting through hole, the head of the bolt is positioned between the U-shaped part.

Furthermore, the fixing shaft is L-shaped, and one end of the fixing shaft is inserted into the corresponding pin hole.

Furthermore, a backing ring is arranged between the head part of the bolt and the transverse plate part.

Furthermore, a U-shaped reinforcing plate is welded on the front and the back of the intersection of the U-shaped part and the transverse plate part of the pull ring respectively, the transverse part of the U-shaped reinforcing plate is attached to the transverse plate part, and the longitudinal part of the U-shaped reinforcing plate is attached to the longitudinal part of the U-shaped part.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses can conveniently use horizontal tensile testing machine to realize the clamping to the bolt ball node, the horizontal tensile testing machine of convenient to use carries out the tensile force detection of bolt ball.

2. The fixed shaft is L-shaped, and the arrangement of the L-shaped fixed shaft enables the pull rings not to be separated from the upper end of the fixed shaft to affect normal detection tests when the two pull rings are pulled.

3. A backing ring is arranged between the head of the bolt and the transverse plate, the backing ring equivalently increases the contact area of the head of the bolt and the transverse plate, and the pressure of the head of the bolt to the transverse plate during the test is reduced.

4. The front and the back of the intersection of the U-shaped part and the transverse plate part of the pull ring are respectively welded with a U-shaped reinforcing plate, and the arrangement of the U-shaped reinforcing plates increases the bearing capacity of the pull ring.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a prior art stud-and-ball joint;

FIG. 2 is a schematic structural view of the present invention when detecting the load of the bolt ball;

FIG. 3 is a schematic view of the mechanism of the present invention when the pull ring is connected to the bolt ball;

FIG. 4 is a front view of the tab of the present invention;

FIG. 5 is a front view of the pull ring of the present invention with a U-shaped reinforcing plate;

FIG. 6 is a side view of the pull ring of the present invention with a U-shaped reinforcement plate;

fig. 7 is a schematic cross-sectional structure diagram of the grommet of the present invention.

In the figure: 1. fixing the bedplate; 2. moving the platen; 3. a pull ring; 301. a U-shaped portion; 302. a lateral plate portion; 303. a connecting through hole; 4. a fixed shaft; 5. a bolt; 6. a bolt ball; 7. a backing ring; 8. u-shaped reinforcing plate.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 2, 3 and 4, in an embodiment of the present invention, a bolt ball joint load detection apparatus includes a horizontal tensile testing machine, a fixed platen 1, a movable platen 2 and a hydraulic cylinder are disposed on the horizontal tensile testing machine, the movable platen 2 is fixedly connected to an extension rod of the hydraulic cylinder, a pin hole is disposed on an upper end surface of one end of the fixed platen 1 close to the movable platen 2, a pin hole is also disposed on an upper end surface of one end of the movable platen 2 close to the fixed platen 1, and the pin hole disposed on the fixed platen 1 and the pin hole disposed on the movable platen 2 are disposed along a moving direction of the movable platen 2; the utility model also comprises a pull ring 3, the pull ring 3 comprises a U-shaped part 301 and a transverse plate part 302, the transverse plate part 302 is arranged at the U-shaped opening part of the U-shaped part 301, and the two are in an integrated structure, and the transverse plate part 302 is provided with a connecting through hole 303; the fixed platen 1 and the movable platen 2 are detachably provided with fixed shafts 4 in pin holes, the upper ends of the fixed shafts 4 are higher than the upper end surfaces of the fixed platen 1 and the movable platen 2, the fixed shafts 4 are respectively arranged in the pin holes of the fixed platen 1 and the movable platen 2, the two fixed shafts 4 respectively penetrate through a U-shaped part 301 of one pull ring 3, the two pull rings 3 are respectively connected with a bolt ball 6 through a bolt 5 with a threaded rod part penetrating through a connecting through hole 303 of the bolt 5, the head part of the bolt 5 is positioned between the U-shaped part 301 and a transverse plate part 302, and the two bolts 5 are respectively connected with two opposite ends of the bolt ball 6.

The utility model discloses a theory of operation: connecting a bolt ball 6 with a pull ring 3 as shown in fig. 3, fixing a combined part after connecting the bolt ball 6 with the pull ring 3 on a fixed bedplate 1 and a movable bedplate 2 of the horizontal tensile testing machine through two fixed shafts 4 as shown in fig. 2, starting a hydraulic cylinder of the horizontal tensile testing machine, driving the movable bedplate 2 to move towards a direction far away from the fixed bedplate 1 by the hydraulic cylinder, pulling the pull ring 3 by the movable bedplate 2 through the fixed shafts 4, and applying pulling force to the bolt ball 6 by the pull ring 3 through a bolt to perform a tensile detection test.

Therefore, the utility model discloses can conveniently use horizontal tensile testing machine to realize the clamping to the bolt ball node, the horizontal tensile testing machine of convenient to use carries out the tensile force detection of bolt ball.

Referring to fig. 2, in the embodiment of the present invention, the fixing shaft 4 is L-shaped, one end of the fixing shaft 4 is inserted into the corresponding pin hole, and the L-shaped fixing shaft 4 is disposed such that the pull ring 3 is not separated from the upper end of the fixing shaft 4 when pulling the two pull rings 3, thereby affecting the normal detection test.

Referring to fig. 3, in the embodiment of the present invention, a backing ring 7 is disposed between the head portion and the transverse plate portion 302 of the bolt 5, the backing ring 7 is a two-stage step-shaped circular ring structure, wherein the thin ring portion is inserted into the connecting through hole 303 of the pull ring 3, and the rod portion of the bolt 5 passes through the central hole of the backing ring 7. The material of the pull ring 3 is Q355B, the hardness and the strength are not very high, the part can be damaged during the test, the material of the backing ring 7 is selected based on the fact that the hardness is larger than that of the measured object, the backing ring 7 equivalently increases the contact area between the head of the bolt 5 and the transverse plate part 302, and the pressure of the head of the bolt 5 on the transverse plate part 302 during the test is reduced.

Referring to fig. 3, 5 and 6, in the embodiment of the present invention, a U-shaped reinforcing plate 8 is welded to the front and the back of the intersection of the U-shaped portion 301 and the horizontal plate portion 302 of the pull ring 3, the horizontal portion of the U-shaped reinforcing plate 8 is attached to the horizontal plate portion 302, and the longitudinal portion of the U-shaped reinforcing plate 8 is attached to the longitudinal portion of the U-shaped portion 301. The provision of the U-shaped reinforcing plate 8 increases the load-bearing capacity of the tab 3.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bolt ball node load detection device comprises a horizontal tensile testing machine, wherein a fixed bedplate (1), a movable bedplate (2) and a hydraulic cylinder are arranged on the horizontal tensile testing machine, the movable bedplate (2) is fixedly connected with an extension rod of the hydraulic cylinder, and the bolt ball node load detection device is characterized in that a pin hole is formed in the upper end face of one end, close to the movable bedplate (2), of the fixed bedplate (1), a pin hole is also formed in the upper end face of one end, close to the fixed bedplate (1), of the movable bedplate (2), the pin hole formed in the fixed bedplate (1) and the pin hole formed in the movable bedplate (2) are arranged along the moving direction of the movable bedplate (2), the bolt ball node load detection device further comprises a pull ring (3), the pull ring (3) comprises a U-shaped part (301) and a transverse plate part (302), and the transverse plate part (302) is arranged at the U-shaped opening part of the U-shaped part (, the two are of an integrally formed structure, and a connecting through hole (303) is arranged on the transverse plate part (302); the fixing device is characterized in that fixing shafts (4) are detachably mounted in pin holes of the fixing bedplate (1) and the moving bedplate (2), the upper ends of the fixing shafts (4) are higher than the upper end surfaces of the fixing bedplate (1) and the moving bedplate (2), one fixing shaft (4) is arranged in the pin hole of the fixing bedplate (1) and the moving bedplate (2), the two fixing shafts (4) respectively penetrate through a U-shaped part (301) of one pull ring (3), the two pull rings (3) are respectively connected with a bolt ball (6) through a bolt (5) with a threaded rod part penetrating through a connecting through hole (303), the head of the bolt (5) is located between the U-shaped part (301) and the transverse plate part (302), and the two bolts (5) are respectively connected to two opposite ends of the bolt ball (6).

2. A bolt-ball joint load detecting device according to claim 1, characterized in that the fixed shaft (4) is L-shaped, and one end of the fixed shaft (4) is inserted into the corresponding pin hole.

3. A bolt-ball joint load detection device according to claim 1, characterised in that a grommet (7) is provided between the head of the bolt (5) and the cross plate portion (302).

4. A bolt ball joint load detection device according to claim 1, wherein a U-shaped reinforcing plate (8) is welded to each of the front and rear surfaces of the intersection of the U-shaped portion (301) and the transverse plate portion (302) of the tab (3), the transverse portion of the U-shaped reinforcing plate (8) is fitted to the transverse plate portion (302), and the longitudinal portion of the U-shaped reinforcing plate (8) is fitted to the longitudinal portion of the U-shaped portion (301).