Anti-overloading pin penetrating device capable of adjusting limit torque

Abstract

The utility model discloses an anti-overloading pin penetrating device capable of adjusting limit torque, which comprises a torsion limiter, two vertical plates, a rotating shaft and a bottom plate, the two vertical plates are oppositely mounted on the bottom plate, the rotating shaft is arranged between the two vertical plates, a first connecting plate provided with a pin shaft or a pin hole is fixed on the rotating shaft, and a second connecting plate provided with a pin shaft or a pin hole is fixed on the first connecting plate. A bearing is installed on the shaft section, stretching into the vertical plates, of the rotating shaft, at least one vertical plate is provided with a torsion limiter, and the shaft section of the rotating shaft stretches into the torsion limiter and is connected with the torsion limiter. A pin hole or a pin shaft matched with the first connecting plate is installed on the second connecting plate, the torque limiter can adjust the bearable limit torque of the rotating shaft, when the torque of the rotating shaft caused by the jacking force borne by the first connecting plate exceeds the preset value of the torque controller, the torque limiter slips to enable the rotating shaft to rotate freely, the first connecting plate is lifted upwards, and the rotating shaft rotates freely. And damage caused by mutual conflict of the first connecting plate and the second connecting plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of structural material shear test loading systems, in particular to an anti-overload pinning device capable of adjusting limit torque. Background Art

[0002] The loading system of the shear test of structural materials is divided into two parts: a shear moving platform and a linear sample feeding module. When working, the linear module first transports the shear moving platform carrying the sample to the specified position, and then the shear moving platform is separated from the linear sample feeding module and the test is carried out. After the test, the shear moving platform is combined with the linear sample feeding module for the next round of tests. In the prior art, the shear moving platform and the linear sample feeding module are combined by a pin-hole combination. During the combination process, the pin holes cannot be aligned due to inaccurate positioning, and the fixing pins cannot be perforated normally. The connecting plate on the shear moving platform will squeeze the connecting plate of the linear sample feeding module, which is easy to cause damage to the plate. Therefore, an anti-overload device is needed to overcome the damage of the linear sample feeding module caused by the pin-hole matching error. Utility Model Content

[0003] The purpose of the utility model is to provide an anti-overload pinning device with adjustable limit torque to solve the problems existing in the above-mentioned prior art. When the shearing moving platform and the linear sample feeding module are not accurately positioned, the shearing moving platform rises to push the connecting plate on the linear sample feeding module so that the connecting plate can rotate freely, thereby avoiding strong pushing to damage the connecting plate and the rotating shaft.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides an anti-overload pin penetration device with adjustable limit torque, comprising a torque limiter, a vertical plate, a rotating shaft and a bottom plate, wherein there are two vertical plates, the two vertical plates are relatively mounted on the bottom plate, the rotating shaft is arranged between the two vertical plates, a first connecting plate with a pin shaft or a pin hole is fixed on the rotating shaft, a bearing is installed on the shaft section of the rotating shaft extending into the vertical plate, at least one of the vertical plates is installed with a torque limiter, and the shaft section of the rotating shaft extends into the torque limiter and is connected to the torque limiter.

[0006] Preferably, a pin hole penetrating through the first connecting plate is formed on the first connecting plate.

[0007] Preferably, it further comprises a second connecting plate, wherein the second connecting plate is installed together with the shearing moving platform, and a pin shaft cooperating with the pin hole is installed on the second connecting plate.

[0008] Preferably, the bottom plate is installed with a supporting device, and the supporting device contacts the bottom surface of the first connecting plate to provide support for the pin hole plate.

[0009] Preferably, the supporting device is a supporting bolt, a screw rod of the supporting bolt is fixedly installed in the base plate, and a head of the bolt contacts the first connecting plate to form support.

[0010] Preferably, a limit rod is installed between the two vertical plates, the limit rod is above the rotating shaft, and the limit rod and the supporting bolt are respectively located at the front and rear sides of the rotating shaft.

[0011] Preferably, shaft end covers are installed on the two end faces of the rotating shaft.

[0012] Preferably, a handle is installed on the side of the first connecting plate.

[0013] Preferably, a plurality of connection holes are provided on the edge of the bottom plate, and the connection holes are used to connect the bottom plate with other components in the linear sample feeding module through connectors.

[0014] Compared with the prior art, the utility model has achieved the following technical effects:

[0015] The torque-adjustable anti-overload pin-piercing device provided by the utility model uses a torque limiter to adjust the ultimate torque that the rotating shaft can withstand. When the shear moving platform and the linear sample feeding module are inaccurately positioned, resulting in the pin holes being unable to accurately match, and the rotating shaft torque caused by the top thrust received by the first connecting plate exceeds the preset value of the torque controller, the torque limiter slips and allows the rotating shaft to rotate freely, and the first connecting plate is lifted upward, thereby preventing the first connecting plate and the second connecting plate from conflicting with each other and causing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 will be briefly introduced below. Obviously, the drawings described below are only 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.

[0017] Figure 1 It is a front view of the torque-adjustable anti-overload pinning device in the embodiment of the utility model;

[0018] Figure 2 It is a front cross-sectional view of an anti-overload pinning device with adjustable torque in an embodiment of the utility model;

[0019] Figure 3 It is a top view of the torque-adjustable anti-overload pinning device in the embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the overall structure of the anti-overload pinning device with adjustable torque in the embodiment of the utility model;

[0021] Figure 5 It is a right side view of the torque-adjustable anti-overload pinning device in the embodiment of the utility model;

[0022] Figure 6 It is a right side cross-sectional view of the torque-adjustable anti-overload pinning device in the embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of the overall structure of an anti-overload pinning device with adjustable torque in another embodiment of the utility model.

[0024] Among them, 1. torque limiter; 2. vertical plate; 3. rotating shaft; 4. bottom plate; 5. first connecting plate; 6. pin shaft; 7. pin hole; 8. bearing; 9. second connecting plate; 10 supporting device; 11. limiting rod; 12. shaft end baffle; 13. handle; 14. connecting hole; 15. connecting piece; 16. supporting device mounting hole. DETAILED DESCRIPTION

[0025] 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 only 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.

[0026] The purpose of the utility model is to provide an anti-overload pinning device with adjustable limit torque to solve the problems existing in the above-mentioned prior art. When the shearing moving platform and the linear sample feeding module are not accurately positioned, the shearing moving platform rises to push the connecting plate on the linear sample feeding module so that the connecting plate can rotate freely, thereby avoiding strong pushing to damage the connecting plate and the rotating shaft.

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] like Figure 1-7As shown, the utility model provides an anti-overload pinning device with adjustable limit torque, comprising a torque limiter 1, a vertical plate 2, a rotating shaft 3 and a bottom plate 4, wherein the vertical plates 2 are two, and the two vertical plates 2 are relatively mounted on the bottom plate 4, the rotating shaft 3 is arranged between the two vertical plates 2, a first connecting plate 5 with a pin shaft 6 or a pin hole 7 is fixed on the rotating shaft 3, a bearing 8 is installed on the shaft section of the rotating shaft 3 extending into the vertical plate 2, at least one of the vertical plates 2 is installed with a torque limiter 1, and the shaft section of the rotating shaft 3 extends into the torque limiter 1 and is in contact with the torque limiter The device 1 is connected, and the maximum torque value that the torque limiter 1 can withstand is set before starting work. During the combination of the shearing moving platform and the linear sample feeding module, if the shearing moving platform and the linear sample feeding module are not positioned accurately, resulting in the pin holes not being able to accurately match, the torque of the rotating shaft 3 caused by the thrust force received by the first connecting plate 5 exceeds the preset value of the torque limiter 1, the torque limiter 1 will slip so that the rotating shaft 3 can rotate freely, and the first connecting plate 5 can be flipped to avoid the first connecting plate 1 and the second connecting plate 9 being squeezed and damaged by each other.

[0029] The torque limiter 1 used in the present invention is a finished product and can be purchased directly on the market. The VM91 series double friction plate slip torque limiter produced by VMTT is preferred. The torque limiter of this type has a double friction plate contact transmission structure inside. When the torque exceeds the set value, the torque brought by the torque on the driving side exceeds the friction between the driving side and the load side, causing friction slip on the driving side. The torque limiter produced by Chengdu Pufeiket Machinery Co., Ltd. is also selected in the present invention.

[0030] like Figure 2-4 As shown, in a preferred embodiment, the first connecting plate 5 is provided with the pin hole 7 penetrating the first connecting plate 5. Figure 2-4 The utility model further comprises a second connecting plate 9, which is installed together with the shearing moving platform. A pin shaft 6 which cooperates with the pin hole 7 is installed on the second connecting plate 9, and the pin shaft 6 and the pin hole 7 cooperate to form a stable connection.

[0031] The bottom plate 4 is provided with a supporting device, and the supporting device contacts the bottom surface of the first connecting plate 5 to support the first connecting plate 5. Figure 2 As shown, in a preferred embodiment, the support device 10 is a support bolt, the screw of the support bolt is fixedly installed in the base plate 4, and the head of the bolt contacts the first connecting plate 5 to form a support. The support device 10 can also be in other forms, such as a pin, a support rod, a bracket, etc. Figure 7 As shown, in another embodiment, the support device mounting holes 16 are distributed on both sides of the rotating shaft 3 to improve the convenience of installation.

[0032] like Figure 3-6 As shown, a limit rod 11 is installed between the two vertical plates 2, and the limit rod 11 is above the rotating shaft 3. The limit rod 11 and the supporting device 10 are respectively located on the front and rear sides of the rotating shaft. The limit rod 11 is used to limit the flipping angle of the first connecting plate 5 when installing an anti-overload pinning device with adjustable torque, so as to facilitate the installation of the base plate 4.

[0033] like Figure 3 As shown, in one embodiment, shaft end blocking covers 12 are installed on the two end faces of the rotating shaft 3 , and the shaft end blocking covers 12 can protect the shaft ends of the rotating shaft 3 .

[0034] like Figure 3 As shown, in a preferred embodiment, a handle 12 is installed on the side of the first connecting plate 5. When the first connecting plate 5 is flipped up, the operator can operate the handle 13 to restore the first connecting plate, which is very convenient.

[0035] like Figure 4 As shown, in one embodiment, a plurality of connection holes 14 are provided on the edge of the bottom plate 4 , and the connection holes 14 are used to connect the bottom plate 4 with other components in the linear sample feeding module through connectors 15 .

[0036] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An anti-overload pinning device with adjustable limit torque, characterized in that: It includes a torque limiter, a vertical plate, a rotating shaft and a bottom plate. There are two vertical plates, and the two vertical plates are relatively installed on the bottom plate. The rotating shaft is arranged between the two vertical plates. A first connecting plate with a pin shaft or a pin hole is fixed on the rotating shaft. A bearing is installed on the shaft section of the rotating shaft extending into the vertical plate. At least one of the vertical plates is installed with a torque limiter, and the shaft section of the rotating shaft extends into the torque limiter and is connected to the torque limiter.

2. The anti-overload pinning device with adjustable limit torque according to claim 1, characterized in that: The first connecting plate is provided with the pin hole penetrating through the first connecting plate.

3. The anti-overload pinning device with adjustable limit torque according to claim 2, characterized in that: It also includes a second connecting plate, which is installed together with the shearing moving platform, and the pin shaft that matches the pin hole is installed on the second connecting plate.

4. The anti-overload pinning device with adjustable limit torque according to claim 2, characterized in that: The bottom plate is installed with a supporting device, and the supporting device contacts the bottom surface of the first connecting plate to support the first connecting plate.

5. The anti-overload pinning device with adjustable limit torque according to claim 4, characterized in that: The supporting device is a supporting bolt, the screw rod of the supporting bolt is fixedly installed in the base plate, and the head of the bolt contacts the first connecting plate to form support.

6. The anti-overload pinning device with adjustable limit torque according to claim 5, characterized in that: A limiting rod is installed between the two vertical plates, the limiting rod is above the rotating shaft, and the limiting rod and the supporting bolt are respectively located at the front and rear sides of the rotating shaft.

7. The anti-overload pinning device with adjustable limit torque according to claim 1, characterized in that: Shaft end blocking covers are installed on the two end surfaces of the rotating shaft.

8. The anti-overload pinning device with adjustable limit torque according to any one of claims 1 to 7, characterized in that: A handle is installed on the side of the first connecting plate.

9. The anti-overload pinning device with adjustable limit torque according to claim 1, characterized in that: A plurality of connection holes are provided on the edge of the bottom plate, and the connection holes are used to connect the bottom plate with other components in the linear sample feeding module through connectors.

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