Tail end rotating wiring device of double-rotating-shaft mechanism

Abstract

The utility model relates to a tail end rotating wiring device of a double-rotating-shaft mechanism. The tail end rotating wiring device comprises a lower base, a nut, an upper base, a pressing plate, filler, a steel wire and a ribbon. Two sets of wiring devices are respectively mounted on shells at the tail ends of two rotating shafts of the double-rotating-shaft mechanism; the two wiring devices are tensioned and fixed through a steel wire, and the two ends of the steel wire are each fixedly connected with one wiring device. A wire rod of the double-rotating-shaft mechanism is fixed to the steel wire through a binding belt. According to the utility model, through the ingenious design, the double-rotating-shaft mechanism ensures that the wire rod used by the driving motor does not rotate in the moving process, the wire rod is protected, and the double-rotating-shaft mechanism has the advantage of simple and reliable structure.

Description

Technical Field

[0001] The utility model belongs to the field of experimental aerodynamics and relates to a tail end rotating wiring device of a double-rotating shaft mechanism. Background Art

[0002] Wind tunnel capture trajectory test technology (CTS for short) is a special wind tunnel simulation test technology designed using the principle of relativity of motion and similarity theory to simulate the actual motion trajectory of an aircraft dropping external attachments during movement, thereby achieving the separation of the external attachments from the aircraft body. It has been applied to the test research on the separation characteristics of various aircraft such as rockets, providing a reliable test basis for the design and development of aircraft control systems.

[0003] The degrees of freedom of the CTS mechanism determine the simulation similarity of its simulated separation process. The CTS mechanism currently has the ability to simulate six degrees of freedom of the movement of external attachments, while the aircraft currently has only a single degree of freedom. Therefore, a two-degree-of-freedom motion mechanism is designed for CTS testing, which together with the existing single-degree-of-freedom mechanism forms a three-degree-of-freedom mechanism, which plays an important role in simulating the movement of the aircraft during the separation process.

[0004] At present, the two-degree-of-freedom motion mechanism generally adopts a dual-axis structure, that is, the yaw and roll angles of the model are changed by the relative rotation of two axes with a certain angle. Since the motors, encoders and wires of some measuring equipment inside the two axes cannot rotate with the axes, it leads to problems such as difficult wiring and easy wear of the wires. Utility Model Content

[0005] The technical problem solved by the utility model is to overcome the deficiencies of the prior art and propose a double-shaft mechanism tail end rotating wiring device to solve the problem of difficult wiring of wires inside the double-shaft mechanism.

[0006] The solution of this utility model is:

[0007] A double-shaft mechanism tail end rotating wiring device, comprising: a lower base, a nut, an upper base, a pressing plate, a filler, a steel wire and a cable tie;

[0008] The lower base is installed in the mounting hole on the housing at the rear end of the shaft, and there is a clearance fit between the lower base and the mounting hole; a nut is fixedly connected to one end of the lower base facing the housing at the rear end of the shaft; the lower base can rotate around the shaft relative to the housing at the rear end of the shaft;

[0009] The upper base is fixed to one end of the lower base away from the rear end housing of the shaft, the wire inside the rear end of the shaft passes through the lower base, and a filler is provided between the wire and the lower base; the filler is used to compress and protect the wire;

[0010] The pressing plate is fixed on the upper base;

[0011] A set of wiring devices is respectively installed on the two rear end housings of the dual-shaft mechanism;

[0012] The two sets of wiring devices are tightened and fixed by steel wires, and both ends of the steel wires are respectively fixedly connected to one set of wiring devices;

[0013] The wires of the double-axle mechanism are fixed to the steel wires by cable ties.

[0014] Preferably, a steel wire installation groove is provided on the inner wall of the pressing plate, and the steel wire installation groove is used to fix the steel wire.

[0015] Preferably, it also includes: a pressure plate screw;

[0016] The pressure plate is fixed on the upper base through pressure plate screws.

[0017] Preferably, it also includes: a base screw;

[0018] The upper base is fixed to the lower base by base screws.

[0019] Preferably, the nut is a hollow cylindrical structure with an outer wall having a groove, and the length of the groove is along the axial direction for tightening with force.

[0020] Preferably, the filler is soft cloth.

[0021] Preferably, a gap is left between the nut and the end surface of the wiring device mounting hole.

[0022] The beneficial effects of the utility model compared with the prior art are:

[0023] 1) The utility model designs a dual-shaft mechanism tail end rotating wire routing device, which adopts a simple structure to solve the problems of wire fixation and wire wear between relatively rotating shafts, thereby improving the reliability of the dual-shaft mechanism in wind tunnel tests.

[0024] 2) The utility model designs a double-shaft mechanism tail end rotating routing device, and designs a wire fixing structure (ie, steel wire) between the two routing devices, thereby reducing the damage rate of the wire in the wind tunnel test.

[0025] 3) The utility model is designed with a dual-axis mechanism tail end rotating wiring device, which has a compact overall design structure, is simple and reliable, is easy to process, and can be used in other scenarios where wiring is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a cross-sectional view of a wiring device according to an embodiment of the utility model;

[0027] Figure 2 This is an application scenario diagram of a dual-shaft mechanism tail end rotating wiring device according to an embodiment of the utility model;

[0028] Figure 3 It is a side view of the wiring device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0029] The utility model will be further described below in conjunction with the accompanying drawings.

[0030] like Figure 1 As shown, a dual-axis mechanism tail end rotating wiring device includes: a lower base 1, a nut 2, an upper base 3, a pressure plate 4, a steel wire installation groove 6, a pressure plate screw 5, a base screw 7, a filler 8, a steel wire 12 and a cable tie 14.

[0031] The lower base 1 is installed in the mounting hole 11 on the rear end housing of the shaft, and there is a clearance fit between the lower base 1 and the mounting hole 11; a nut 2 is fixedly connected to one end of the lower base 1 facing the rear end housing of the shaft; the lower base 1 can rotate around the shaft relative to the rear end housing of the shaft;

[0032] The upper base 3 is fixed to one end of the lower base 1 away from the rear end housing of the shaft. The wire 9 inside the rear end of the shaft passes through the lower base 1. A filler 8 is provided between the wire 9 and the lower base 1. The filler 8 is used to compress the wire 9 for protection.

[0033] like Figure 3 As shown, the pressing plate 4 is fixed on the upper base 3; a steel wire installation groove 6 is provided on the inner wall of the pressing plate 4, and the steel wire installation groove 6 is used to fix the installation steel wire 12;

[0034] A set of wiring devices is respectively installed on the two rear end housings of the dual-shaft mechanism;

[0035] The two sets of routing devices are tightened and fixed by a steel wire 12, and the two ends of the steel wire 12 are respectively fixedly connected to one set of routing devices; the wire 9 of the double-shaft mechanism is fixed to the steel wire 12 by a cable tie 14. Figure 2 shown.

[0036] The pressing plate 4 is fixed to the upper base 3 by means of the pressing plate screws 5. The upper base 3 is fixed to the lower base 1 by means of the base screws 7.

[0037] The two first wiring devices and the second wiring device are respectively installed on the two shaft tail end housings of the double shaft mechanism and connected by steel wire 12. Both ends of the steel wire 12 are provided with protrusions for fixing the wire 9. The steel wire 12 passes through the steel wire installation slot 6 of the first wiring device and passes through the steel wire installation slot 6 of the second wiring device 15. The wire 9-1 passes through the tail end of the first wiring device, and one end of the wire 9-1 is fixed between the first wiring device and the filler 8, and the part of the wire 9-1 between the two shafts is fixed to the steel wire 12 by the cable tie 14.

[0038] The lower base 1 is a hollow cylindrical structure with a notch on the edge. The shape of the notch is the same as that of the upper base 3. The lower plane of the notch is provided with an opening for installing the base screw 7, and the rear end is provided with a thread for installing the nut 2. The upper base 3 is a semicircular ring structure, and the outer end of the arc surface is provided with a screw hole for installing the pressure plate screw 5. The plane is provided with a screw hole for installing the base screw 7.

[0039] The pressing plate 4 is a sector-shaped circular ring structure, and an opening is provided on the outer surface for installing the pressing plate screw 5. A steel wire installation groove 6 is provided on the inner surface for installing the steel wire 12.

[0040] The nut 2 is a hollow cylindrical structure with a slotted outer wall. The length of the slot is along the axial direction and is used for tightening with added force.

[0041] The nut 2 is provided with two for loosening.

[0042] The filler 8 is a flexible material such as soft cloth, and is used to compress the wire 9 .

[0043] The steel wire 12 is a flexible steel wire, with protrusions at both ends for limiting position.

[0044] A gap is left between the nut 2 and the end surface of the wiring device mounting hole 11 .

[0045] The wire 9 passes through the lower base 1, and the upper and lower bases 1 compress the wire 9 through the filler 8. The lower base 1 is installed on the rear section of the double-axis mechanism through the nut 2, and can rotate around the axis to ensure that the wire 9 does not rotate when the double-axis mechanism rotates. The utility model describes a double-axis mechanism tail end rotating wiring device. When in use, the two first wiring devices and the second wiring device are respectively installed on the two shaft tail ends of the double-axis mechanism and connected by a steel wire 12. The steel wire 12 passes through the steel wire installation groove 6 of the first wiring device and passes into the steel wire installation groove 6 of the second wiring device. The wire 9-1 passes through the tail end of the first wiring device, and one end of the wire 9-1 is fixed between the first wiring device and the filler 8, and the part of the wire 9-1 located between the two shafts is fixed to the steel wire 12 by a cable tie 14. When the two rotating shafts of the double rotating shaft rotate, the wiring device rotates around the axis to ensure that the wire 9 is not twisted off, thereby achieving full fixation of the wire 9 of the double rotating shaft mechanism in the wind tunnel and improving the reliability of the wire 9 of the double rotating shaft mechanism.

[0046] Therefore, the utility model is a dual-axis mechanism tail end rotating wiring device, which is of great significance to solve the problem of difficult wiring of the internal wire 9 of the dual-axis mechanism. In addition to wind tunnel tests, this wiring device can also be used in other wiring scenarios of mechanical mechanisms with relative rotation.

[0047] Although the utility model has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the utility model. Any technical personnel in this field can make possible changes and modifications to the technical solution of the utility model by using the methods and technical contents disclosed above without departing from the spirit and scope of the utility model. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model are within the protection scope of the technical solution of the utility model.

Claims

1. A dual-shaft mechanism tail end rotating wiring device, characterized in that: include: A lower base (1), a nut (2), an upper base (3), a pressure plate (4), a filler (8), a steel wire (12) and a cable tie (14); The lower base (1) is installed in a mounting hole (11) on the housing at the rear end of the rotating shaft, and a clearance fit is formed between the lower base (1) and the mounting hole (11); a nut (2) is fixedly connected to one end of the lower base (1) facing the housing at the rear end of the rotating shaft; the lower base (1) can rotate around the axis relative to the housing at the rear end of the rotating shaft; The upper base (3) is fixed to one end of the lower base (1) away from the housing at the rear end of the rotating shaft. The wire (9) inside the rear end of the rotating shaft passes through the interior of the lower base (1). A filler (8) is provided between the wire (9) and the lower base (1); the filler (8) is used to compress and protect the wire (9). The pressing plate (4) is fixed on the upper base (3); A set of wiring devices is respectively installed on the two rear end housings of the dual-shaft mechanism; The two sets of wiring devices are tightened and fixed by a steel wire (12), and the two ends of the steel wire (12) are respectively fixedly connected to one set of wiring devices; The wire (9) of the double-rotating shaft mechanism is fixed on the steel wire (12) by means of a cable tie (14).

2. A dual-shaft mechanism tail end rotating wiring device according to claim 1, characterized in that: A steel wire installation groove (6) is provided on the inner wall of the pressing plate (4), and the steel wire installation groove (6) is used for fixing and installing the steel wire (12).

3. The dual-shaft mechanism tail end rotating wiring device according to claim 1, characterized in that: Also includes: Pressure plate screw (5); The pressing plate (4) is fixed on the upper base (3) by means of a pressing plate screw (5).

4. The dual-shaft mechanism tail end rotating wiring device according to claim 1, characterized in that: Also includes: Base screw (7); The upper base (3) is fixed to the lower base (1) via base screws (7).

5. The dual-shaft mechanism tail end rotating wiring device according to claim 1, characterized in that: The nut (2) is a hollow cylindrical structure with an outer wall having a groove, the length of the groove being along the axial direction and used for tightening with added force.

6. A dual-shaft mechanism tail end rotating wiring device according to any one of claims 1 to 5, characterized in that: The filler (8) is soft cloth.

7. The dual-shaft mechanism tail end rotating wiring device according to claim 6, characterized in that: A gap is left between the nut (2) and the end surface of the wiring device installation hole (11).

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