Extendable arm device for online detection of tightening shaft torque

Abstract

The present invention relates to an extension arm device for online detection of tightening shaft torque, wherein two ends of an inner cantilever are respectively hinged to one side of an intermediate plate and a connecting plate of a bracket assembly through a rotating shaft, a parallel rod is connected between the intermediate plate and the connecting plate of the bracket assembly to form an inner cantilever parallelogram structure; a YQL supporting gas spring is additionally installed between the inner cantilever and the connecting plate of the bracket assembly to support the inner cantilever parallelogram structure; two ends of an outer cantilever are respectively hinged to the other side of the intermediate plate and the connecting plate of a deflection seat through a rotating shaft, another parallel rod is further connected between the intermediate plate and the connecting plate of the deflection seat to form an outer cantilever parallelogram structure, a YQL supporting gas spring is installed between the outer cantilever and the intermediate plate to offset gravity, the connecting plate of the deflection seat is connected to the deflection seat through a rotating shaft seat, and a locking device is provided on the outer side of the connection between the deflection seat and the rotating shaft seat; an LQL tension gas spring is further connected between the connecting plates of the deflection seat and the deflection seat.

Description

Technical Field

[0001] The invention relates to an extension arm device, in particular to an extension arm device for online detection of tightening shaft torque. Background Art

[0002] In the current domestic market, there is no device for online detection of tightening shaft torque. Usually, the tightening shaft needs to be removed for detection. The operation process is relatively complicated and has high requirements on personnel. The detection also takes a lot of time.

[0003] Therefore, it is necessary to adopt a device that drives the detection tool to the position of the tightening shaft for detection by moving the cantilever, so that the tightening shaft does not need to be removed during detection, saving time and manpower. Summary of the invention

[0004] The present invention provides an extension arm device for online detection of tightening shaft torque, which can directly detect the tightening shaft torque online.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is: an extension arm device for online detection of tightening shaft torque, comprising an inner cantilever, an intermediate plate, a deflection seat, a bracket assembly, a rotating shaft, and an outer cantilever, wherein the two ends of the inner cantilever are respectively hinged to one side of the intermediate plate and a connecting plate of the bracket assembly through the rotating shaft, and a parallel rod is connected between the intermediate plate and the connecting plate of the bracket assembly to form an inner cantilever parallelogram structure; a YQL support gas spring is installed between the inner cantilever and the connecting plate of the bracket assembly to support the inner cantilever parallelogram structure; the two ends of the outer cantilever are respectively hinged to the other side of the intermediate plate and the connecting plate of the deflection seat through the rotating shaft, and another parallel rod is also connected between the intermediate plate and the connecting plate of the deflection seat to form an outer cantilever parallelogram structure, a YQL support gas spring is installed between the outer cantilever and the intermediate plate to offset gravity, the connecting plate of the deflection seat is connected to the deflection seat through a rotating shaft seat, and a locking device is provided on the outer side of the connection between the deflection seat and the rotating shaft seat; an LQL tension gas spring is also connected between the deflection seat and the connecting plate of the deflection seat.

[0006] Furthermore, the connecting plate of the bracket assembly is connected to the YQL supporting gas spring via a linear fixing mechanism.

[0007] Furthermore, the linear fixing mechanism consists of a fixing knob, a fixing seat and a gas spring connecting seat, wherein the fixing knob is threadedly connected to the fixing seat fixed on the connecting plate of the bracket assembly, the front end of the fixing knob is threadedly connected to the rear end of the gas spring connecting seat, and the inner hole at the front end of the gas spring connecting seat is hinged to the YQL support gas spring.

[0008] Furthermore, the intermediate plate and the YQL supporting gas spring are connected via a deflection fixing mechanism.

[0009] Furthermore, the deflection fixing mechanism is composed of a deflection fixing knob, a support, and a deflection seat, wherein one end of the deflection fixing knob is hinged to the middle plate through a pin, and the other end is hinged to the YQL support gas spring through a pin, the deflection fixing knob is connected to the middle part of the deflection seat after being fixed to the support on the middle plate, and the deflection fixing knob is threadedly connected to the support and the deflection seat. During installation, the deflection seat is first hinged to the support, and the other end is hinged to the YQL support gas spring, and then the deflection seat is fixed with the deflection fixing knob.

[0010] Furthermore, a detection tool is installed on the deflection seat.

[0011] Furthermore, the entire extending arm device is installed on the detection vehicle through a bracket assembly.

[0012] Furthermore, the bracket assembly is connected to a rotating shaft fixed on the detection trolley.

[0013] The beneficial effect of the present invention is that the torque of the tightening shaft can be directly detected by driving the measuring tool installed on the deflection seat through the extension and retraction of the cantilever.

[0014] The present invention can realize 360° detection on a plane by rotating the bracket assembly installed on the detection trolley, and can realize multi-angle measurement in the vertical direction by rotating the rotating shaft seat; the support gas spring and the tension gas spring installed on the cantilever can offset the influence of gravity, making it lighter in use; in addition, the extension arm device can be folded up when not in use to save space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the structure of the extension arm device for online detection of tightening shaft torque of the present invention;

[0016] Figure 2 It is a partial rear view of the extension arm device for online detection of tightening shaft torque of the present invention;

[0017] Figure 3 It is a partial side view of the extension arm device for online detection of tightening shaft torque of the present invention. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figures 1 to 3 As shown, the extension arm device for online detection of tightening shaft torque of the present invention includes an inner cantilever 1, an intermediate plate 2, a wire frame 3, a deflection fixing knob 4, a support 5, a deflection fixing seat 6, a YQL support gas spring 7, an LQL tension gas spring 8, a rotating shaft seat 9, a deflection seat 10, a bracket assembly 11, a rotating shaft 12, a locking device 13, an outer cantilever 14, an adjustment fixing mechanism 17, a deflection fixing mechanism 21, etc.

[0020] One end of the inner cantilever 1 is mounted on one side of the middle plate 2 through the rotating shaft 12, and the other end is mounted on the bracket assembly connecting plate 15 through the rotating shaft 12. A parallel rod is also connected between the middle plate 2 and the bracket assembly connecting plate 15 to form an inner cantilever parallelogram structure. A YQL support gas spring 7 is installed between the inner cantilever 1 and the bracket assembly connecting plate 15 to support the inner cantilever parallelogram structure. One end of the outer cantilever 14 is connected to the other side of the middle plate 2 through the rotating shaft 12, and the other end of the outer cantilever 14 is mounted on the deflection seat connecting plate 16 through the rotating shaft 12. Another parallel rod is also connected between the middle plate 2 and the deflection seat connecting plate 16 to form an outer cantilever parallelogram structure. A YQL support gas spring 7 is also installed between the outer cantilever 14 and the middle plate 2 to offset gravity. The deflection seat connecting plate 16 is connected to the deflection seat 10 through the rotating shaft seat 9, and a locking device 13 is provided on the outer side of the connection between the deflection seat 10 and the rotating shaft seat 9. An LQL tension gas spring 8 is also connected between the deflection seat 10 and the deflection seat connecting plate 16. A detection tool is installed on the deflection seat 10.

[0021] The bracket assembly connecting plate 15 is connected to the YQL supporting gas spring 7 through an adjusting fixing mechanism 17. The adjusting fixing mechanism 17 is composed of an adjusting knob 18, a fixing seat 19 and a gas spring connecting seat 20, wherein the adjusting knob 18 is threadedly connected to the fixing seat 19 fixed on the bracket assembly connecting plate 15, the front end of the adjusting knob 18 is threadedly connected to the rear end of the gas spring connecting seat 20, and the inner hole at the front end of the gas spring connecting seat 20 is hinged to the YQL supporting gas spring 7.

[0022] The middle plate 2 and the YQL supporting gas spring 7 are connected via a deflection fixing mechanism 21. The deflection fixing mechanism 21 is composed of a deflection fixing knob 4, a support 5, and a deflection fixing seat 6, wherein one end of the deflection fixing knob 4 is hinged to the middle plate 2 via a pin, and the other end is hinged to the YQL supporting gas spring 7 via a pin. The deflection fixing knob 4 is connected to the middle part of the deflection fixing seat 6 after being fixed to the support 5 on the middle plate 2, and the deflection fixing knob 4 is threadedly connected to the support 5 and the deflection seat 6. During installation, the deflection fixing seat 6 is first hinged to the support 5, and the other end is hinged to the YQL supporting gas spring 7, and then the deflection fixing knob 4 is used to fix the deflection fixing seat 6.

[0023] The entire extension arm device is mounted on the detection trolley through a bracket assembly 11. The bracket assembly 11 is connected to a rotating shaft fixedly connected to the detection trolley.

[0024] The present invention drives the measuring tool installed on the deflection seat through the extension and retraction of the cantilever, so as to directly detect the torque of the tightening shaft, without removing the tightening shaft for detection like a conventional detection trolley; 360° detection on the plane can be achieved by rotating the bracket assembly installed on the detection trolley, and multi-angle measurement in the vertical direction can be achieved by rotating the rotating shaft seat; the support gas spring and the tension gas spring installed on the cantilever can offset the influence of gravity, making it lighter in use; in addition, the extension arm device can be folded up when not in use to save space.

[0025] Through the above mechanism, a protruding arm device for online detection of tightening shaft torque is formed.

Claims

1. An extension arm device for online detection of tightening shaft torque, comprising an inner cantilever, an intermediate plate, a deflection seat, a bracket assembly, a rotating shaft, and an outer cantilever, characterized in that: The two ends of the inner cantilever are respectively hinged to one side of the middle plate and the connecting plate of the bracket assembly through a rotating shaft, and a parallel rod is connected between the middle plate and the connecting plate of the bracket assembly to form an inner cantilever parallelogram structure; a YQL supporting gas spring is installed between the inner cantilever and the connecting plate of the bracket assembly to support the inner cantilever parallelogram structure; the two ends of the outer cantilever are respectively hinged to the other side of the middle plate and the connecting plate of the deflection seat through a rotating shaft, and another parallel rod is connected between the middle plate and the connecting plate of the deflection seat to form an outer cantilever parallelogram structure, and a YQL supporting gas spring is installed between the outer cantilever and the middle plate to offset gravity; the deflection seat is connected to the connecting plate of the deflection seat through a rotating shaft seat, and a locking device is provided on the outer side of the connection between the deflection seat and the rotating shaft seat; an LQL tension gas spring is also connected between the deflection seat and the connecting plate of the deflection seat.

2. The extension arm device for online detection of tightening shaft torque according to claim 1, characterized in that: The connecting plate of the bracket assembly is connected to the YQL supporting gas spring via an adjusting and fixing mechanism.

3. The extension arm device for online detection of tightening shaft torque according to claim 2, characterized in that: The adjustment fixation consists of an adjustment knob, a fixing seat and a gas spring connecting seat, wherein the adjustment knob is threadedly connected to the fixing seat fixed on the connecting plate of the bracket assembly, the front end of the adjustment knob is threadedly connected to the rear end of the gas spring connecting seat, and the inner hole at the front end of the gas spring connecting seat is hinged to the YQL support gas spring.

4. The extension arm device for online detection of tightening shaft torque according to claim 1, characterized in that: The middle plate and the YQL supporting gas spring are connected via a deflection fixing mechanism.

5. The extension arm device for online detection of tightening shaft torque according to claim 4, characterized in that: The deflection fixing mechanism consists of a deflection fixing knob, a support, and a deflection seat, wherein one end of the deflection fixing knob is hinged to the middle plate through a pin, and the other end is hinged to the YQL supporting gas spring through a pin. The deflection fixing knob is connected to the middle part of the deflection seat after being fixed to the support on the middle plate, and the deflection fixing knob is threadedly connected to the support and the deflection seat. During installation, the deflection seat is first hinged to the support, and the other end is hinged to the YQL supporting gas spring, and then the deflection seat is fixed with the deflection fixing knob.

6. The extension arm device for online detection of tightening shaft torque according to claim 1, characterized in that: A detection tool is installed on the deflection seat.

7. The extension arm device for online detection of tightening shaft torque according to any one of claims 1 to 6, characterized in that: The entire extending arm device is installed on the detection vehicle through a bracket assembly.

8. The extension arm device for online detection of tightening shaft torque according to claim 7, characterized in that: The bracket assembly is connected to a rotating shaft fixed on the detection trolley.

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