CN215064270U - Inner hole circumference angle ruler - Google Patents

Abstract

The utility model relates to an inner hole circumference angle ruler, which comprises a circular or semicircular base plate, wherein the front side of the base plate is connected with an angle scale layer along the circumferential direction of the base plate, the axle center of the base plate is connected with a rotating rod shaft, the rotating rod shaft is rotatably connected with a rotating rod, and the upper end of the rotating rod is connected with a pointer pointing to the angle scale layer; the rear side of the rotating rod shaft is provided with a horizontal rod connected to the base plate, and two ends of the horizontal rod are connected with conical heads capable of moving along the axial direction of the horizontal rod. The ruler can accurately mark the circumferential positions of all threaded holes in the inner hole of the wind power main shaft, and can accurately measure the angle positions of the machined threaded holes.

Description

Inner hole circumference angle ruler

Technical Field

The utility model relates to an inner chamber screw hole processing location appurtenance technical field specifically is a hole circumference bevel protractor.

Background

The wind-powered electricity generation main shaft hole has more screw holes on the circumferencial direction, distributes according to certain angle between each screw hole, and when these screw holes before processing, the measuring tools such as angle ruler, tape measure or vernier caliper need be assisted with the help of to carry out accurate marking off mark to the angular position between the screw hole, carries out drilling tapping again according to the position of mark. In the prior art, measuring tools used for positioning are complicated and inconvenient to use, and measurement errors generated by various measuring tools are easy to accumulate so that the final positioning position has larger deviation.

SUMMERY OF THE UTILITY MODEL

For overcoming the above-mentioned problem that exists among the prior art, the utility model provides a hole circumference bevel protractor can be to the accurate mark in each screw hole circumference position in the wind-powered electricity generation main shaft hole, and can carry out the accuracy measurement to the screw hole angular position after the processing.

The utility model discloses a realize through following technical scheme:

an inner hole circumference angle ruler comprises a circular or semicircular base plate, wherein the front side of the base plate is connected with an angle scale layer along the circumferential direction of the base plate, the axis of the base plate is connected with a rotating rod shaft, a rotating rod is rotatably connected onto the rotating rod shaft, and the upper end of the rotating rod is connected with a pointer pointing to the angle scale layer; the rear side of the rotating rod shaft is provided with a horizontal rod connected to the base plate, and two ends of the horizontal rod are connected with conical heads capable of moving along the axial direction of the horizontal rod.

Preferably, the conical head is in threaded connection with the horizontal rod.

Preferably, the horizontal rod comprises a left rod and a right rod which are symmetrical to each other, and the left rod and the right rod are slidably connected to the rear side of the base plate.

Preferably, a side rod scale layer capable of determining the extending length of the left side rod or the right side rod is connected to the left side rod and the right side rod in the length direction.

Preferably, the rotating rod comprises an upper rod and a lower rod slidably connected to the upper rod.

Preferably, the lower end center position of the lower rod is provided with an identification notch.

Preferably, the lower end of the lower rod is provided with a scribing sliding chute in the vertical direction, a scribing sliding shaft is connected in the scribing sliding chute in a sliding mode, the upper portion of the scribing sliding shaft is connected with the lower rod through a return spring, and a chalk sleeve is connected below the scribing sliding shaft.

Preferably, the angle scale layer inboard is equipped with the annular of seting up on the base plate, the dwang upper end is connected with the bolt sliding shaft, bolt sliding shaft sliding connection has the sliding shaft nut in the annular, threaded connection on the bolt sliding shaft.

The utility model has the advantages that:

1. the base plate front side is connected with the angle scale layer along the base plate circumferencial direction, and the axle center department of base plate is through rotating the pivot rotatable coupling dwang, and the upper end of dwang is connected with the pointer on directional angle scale layer, and pivot axle rear side is equipped with the horizon bar of connection on the base plate, and the both ends of horizon bar all are connected with the conical head that can follow horizon bar axial displacement. When the ruler is used for determining the position of a threaded hole to be machined, the ruler is placed into an inner cavity of a main shaft, conical heads at two ends of a horizontal rod are symmetrically adjusted firstly, so that the conical heads are abutted against the circumferential line of the inner cavity of the main shaft needing to be provided with the threaded hole, a rotating rod shaft is coaxial with the main shaft, then the rotating rod is rotated according to the angular position of the threaded hole to be machined, the accurate angle of the rotating rod is determined through an angle scale layer corresponding to a pointer, after the angle is determined, a mark is marked on the circumferential line of the inner cavity of the main shaft, then the rotating rod is rotated to determine the position of the next threaded hole, and drilling and tapping are carried out until all the positions of the threaded hole are marked; when this chi is used for detecting the angular position between the screw hole, put into the main shaft inner chamber with this chi equally, the conical head at horizontal pole both ends is adjusted to the symmetry for the conical head inserts the contained angle and fixes this chi for two threaded holes of 180, and rotatory dwang to every screw hole determines whether there is screw hole angular deviation according to the angle value on the directional angle scale layer of pointer. The ruler can mark the positions of all threaded holes in an inner hole of a wind power main shaft in a marking mode, and can measure the angle positions of the machined threaded holes, and is convenient to use and carry, and high in identification and measurement accuracy.

2. The horizon bar includes left side pole and the right side pole of mutual symmetry, and left side pole and right side pole sliding connection are in the base plate rear side, and the length of horizon bar can slide adjusting, and this chi can adapt to each screw hole circumference position accurate marking and measurement of different positions department in the main shaft of different internal diameters or the toper hole main shaft.

3. Be connected with the side lever scale layer that can confirm left side lever or right side pole extension length in the length direction of left side lever and right side pole, no longer need additionally measure with the help of the scale like this when adjusting the extension length of left side lever and right side pole, it is more convenient.

4. The dwang includes the lower beam of upper boom and sliding connection in the upper boom, and the length of dwang also can be adjusted like this to each screw hole circumference position accurate marking and measurement of different positions department in the main shaft or the toper hole main shaft of adaptation different internal diameters.

5. The lower extreme central point of lower beam puts and has seted up the sign breach, the sign that can be more accurate through the sign breach will process the position of screw hole.

6. The lower end of the lower rod is provided with a marking chute in the vertical direction, a marking sliding shaft is connected in the marking chute in a sliding mode, the upper portion of the marking sliding shaft is connected with the lower rod through a reset spring, and a chalk sleeve is connected below the marking sliding shaft. When the rotating rod is rotated in place, the marking sliding shaft is pressed downwards, the chalk in the chalk sleeve can draw a dot mark at the position, the marking sliding shaft is loosened after the mark is finished, the chalk is automatically retracted under the restoring force of the reset spring, the operation is more convenient, and the mark is more accurate.

7. The inner side of the angle scale layer is provided with an annular groove formed in the substrate, the upper end of the rotating rod is connected with a bolt sliding shaft, the bolt sliding shaft is connected in the annular groove in a sliding mode, and a sliding shaft nut is connected to the bolt sliding shaft in a threaded mode. The dwang slides in the annular simultaneously when rotating, and is more stable through two point bearing structure.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a front view of the present invention.

Fig. 2 is a schematic view of the rear view structure of the present invention.

Fig. 3 is a schematic view of a three-dimensional structure of the present invention.

Fig. 4 is a schematic perspective view of the present invention.

Fig. 5 is a rotating rod structure diagram of the present invention.

Fig. 6 is a partial enlarged view at I in fig. 5.

In the figure, 1-substrate, 11-angle scale layer, 12-rotating rod shaft, 13-ring groove, 14-center hole, 15-thread sliding rod, 2-rotating rod, 21-upper rod, 22-lower rod, 221-lower rod adjusting groove, 222-marking notch, 23-bolt sliding shaft, 231-sliding shaft nut, 24-marking sliding shaft, 241-marking sliding groove, 242-chalk sleeve, 243-reset spring, 25-pointer, 3-horizontal rod, 31-left side rod, 32-right side rod, 33-conical head, 34-side rod adjusting groove and 35-side rod scale layer.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be further described with reference to the accompanying drawings.

The utility model relates to an inner hole circumference bevel protractor, as shown in fig. 1-6, including circular or semicircular base plate 1, basic 1 is semi-circular in this embodiment, and the material is the stainless steel, and base plate 1 front side is connected with angle scale layer 11, the similar protractor among the prior art along 1 circumferencial direction of base plate.

The axis of the base plate 1 is connected with a rotating rod shaft 12, the rotating rod shaft 12 is rotatably connected with a rotating rod 2, and the upper end of the rotating rod 2 is connected with a pointer 25 pointing to the angle scale layer 11. When the rotating rod 2 rotates to determine the angle between each threaded hole on the circumference in the wind power main shaft inner hole (inner cavity), the angle is accurately determined according to the scale value of the pointer 25 pointing to the angle scale layer 11, for example, the included angle between two M5 threaded holes is 30 degrees, the position of a first M5 threaded hole is determined, then the rotating rod 2 rotates 30 degrees, the middle point of the position where one end of the rotating rod 2, which is far away from the pointer 25, is the accurate position of another M5 threaded hole, and the mark is drawn after the position is determined, so that subsequent drilling and tapping are facilitated.

The rear side of the rotating rod shaft 12 is provided with a horizontal rod 3 connected to the base plate 1, and the horizontal rod 3 is not only a reference for rotating the rotating rod 2, but also a support for fixing the ruler in the inner cavity of the main shaft. The both ends of horizontal pole 3 all are connected with the conical head 33 that can follow 3 axial displacement of horizontal pole, and in this embodiment, conical head 33 and 3 threaded connection of horizontal pole make horizontal pole 3 both ends can be fixed on certain circumference of main shaft inner chamber or threaded hole through outside rotatory conical head 33. The conical head 33 is of a tapered section so as to be able to be inserted and fixed in threaded holes of a larger diameter range, and in the embodiment, the conical head 33 can be inserted into all the threaded holes of M4-M12.

Horizontal pole 3 includes left side pole 31 and right side pole 32 of mutual symmetry, left side pole 31 and right side pole 32 sliding connection are in base plate 1 rear side, it is specific, as shown in fig. 3, 4, it all is equipped with two threaded slide bar 15 of wearing to locate on base plate 1 to rotate lever shaft 12 both sides, threaded slide bar 15 is the bolt, set up left right direction's side lever adjustment tank 34 on left side pole 31 and the right side pole 32, left side pole 31 and right side pole 32 penetrate threaded slide bar 15 through side lever adjustment tank 34 on, and tightly fix in base plate 1 rear side through the nut on the threaded slide bar 15, after loosening the nut, left side pole 31 and right side pole 32 can the horizontal slip realization length adjustment.

The side rod scale layer 35 which can determine the extending length of the left side rod 31 or the right side rod 32 is connected in the length direction of the left side rod 31 and the right side rod 32, as shown in fig. 3, the side rod scale layer 35 is positioned below the side rod adjusting groove 34, and when the extending length of the left side rod 31 and the right side rod 32 is adjusted, the measuring by means of a scale is not needed, and the operation is more convenient. The protruding lengths of the left side rod 31 and the right side rod 32 need to be the same, otherwise the axes of the rotary rod shaft 12 and the main shaft are not uniform, so that the determined positions of the threaded holes are inaccurate.

The rotating rod 2 includes an upper rod 21 and a lower rod 22 slidably connected to the upper rod 21, and specifically, as shown in fig. 6, lower adjustment grooves 221 are formed in the upper rod 21 and the lower rod 22 in the length direction, and bolts and nuts are inserted into the lower adjustment grooves 221 to fix the upper rod 21 and the lower rod 22. The whole length of dwang 2 also can adjust like this to each screw hole circumference position accurate marking and measurement of different positions department in the main shaft or the toper hole main shaft of adaptation different internal diameters.

The lower end center position of lower beam 22 has seted up sign breach 222, and sign breach 222 is located the intermediate position of lower beam 22 lower extreme, because lower beam 22 has certain width, the accurate position of sign screw hole that can be more accurate through sign breach 222.

The lower end of the lower bar 22 is provided with a vertical scribing chute 241, as shown in fig. 6, a scribing slide shaft 24 is slidably connected to the scribing chute 241, the upper part of the scribing slide shaft 24 is connected to the lower bar 22 through a return spring 243, a chalk sleeve 242 is connected to the lower part of the scribing slide shaft 24, and chalk can be inserted into the chalk sleeve 242. When the rotating rod 2 is rotated to a proper position, the marking sliding shaft 24 is pressed downwards against the elastic force of the return spring 243, the chalk in the chalk sleeve 242 can be marked at the position on the circumference line of the inner cavity of the main shaft, the marking sliding shaft 24 is loosened after the marking is finished, the chalk is automatically withdrawn under the restoring force of the return spring 243, the operation is more convenient, and the marking is more accurate.

The inside of the angle scale layer 11 is provided with an annular groove 13 formed on the substrate 1, the upper end of the rotating rod 2 is connected with a bolt sliding shaft 23, the bolt sliding shaft 23 is connected in the annular groove 13 in a sliding manner, and a sliding shaft nut 231 is connected on the bolt sliding shaft 23 in a threaded manner. The rotating rod 2 slides in the annular groove 13 when rotating around the rotating rod shaft 12, and the rotating rod 2 is more stable through a two-point supporting structure. After the corner of the rotating rod 2 is adjusted, the sliding shaft nut 231 is screwed down to fix the rotating rod 2 on the substrate 1, so that the mark can be drawn in the inner cavity of the spindle more conveniently, and the rotating rod 2 is prevented from rotating to cause the mark position to be inaccurate in the marking process.

The base plate 1 is provided with the central hole 14, so that the material is saved, and the ruler is lighter and less heavy.

The working process is as follows: when the ruler is used for determining the angle position of a threaded hole to be processed, drawing a circumferential line at a circumferential position with a specified depth in an inner cavity of a main shaft; the length of the horizontal side rod 3 is adjusted according to the diameter of the circumference, and the conical heads 33 at the two ends of the horizontal side rod 3 are symmetrically adjusted, so that the horizontal side rod 3 is fixed on the circumference of the inner cavity of the main shaft; and sequentially rotating the rotating rod 2 according to the angle positions among the threaded holes, and after the angle position of one threaded hole is determined each time, marking the position by chalk according to the lower marking sliding shaft 24 until all the threaded hole positions are marked.

When the ruler is used for detecting the angle position between the threaded holes, the ruler is placed into the inner cavity of the main shaft, and the conical heads 33 at the two ends of the horizontal rod 3 are symmetrically adjusted, so that the conical heads 33 are inserted into the two threaded holes with the included angle of 180 degrees to fix the ruler; rotating the rotating rod 2 to each threaded hole position, and determining whether the threaded hole angle deviation exists according to the angle value of the pointer 25 pointing to the angle scale layer 11.

In the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the present invention, but do not require the present invention to be constructed or operated in a specific orientation, and therefore, cannot be construed as limiting the present invention. The terms "connected" and "connected" in the present invention are to be understood in a broad sense, and may be connected or detachably connected, for example; the terms may be directly connected or indirectly connected through intermediate components, and specific meanings of the terms may be understood as specific conditions by those skilled in the art.

The foregoing is a preferred embodiment of the present invention, and the description of the specific embodiments is only for better understanding of the idea of the present invention. To those skilled in the art, many modifications and equivalents may be made in accordance with the principles of the present invention and are deemed to fall within the scope of the invention.

Claims (8)

1. The utility model provides an inner hole circumference angle ruler, includes circular or semicircular base plate (1), base plate (1) front side is connected with angle scale layer (11), its characterized in that along base plate (1) circumferencial direction: a rotating rod shaft (12) is connected to the axis of the base plate (1), a rotating rod (2) is rotatably connected to the rotating rod shaft (12), and a pointer (25) pointing to the angle scale layer (11) is connected to the upper end of the rotating rod (2); the rear side of the rotating rod shaft (12) is provided with a horizontal rod (3) connected to the base plate (1), and two ends of the horizontal rod (3) are connected with conical heads (33) capable of moving along the axial direction of the horizontal rod (3).

2. An internal bore circumference angle gauge, as defined in claim 1, wherein: the conical head (33) is in threaded connection with the horizontal rod (3).

3. An internal bore circumference angle gauge, as defined in claim 2, wherein: the horizontal rod (3) comprises a left side rod (31) and a right side rod (32) which are symmetrical to each other, and the left side rod (31) and the right side rod (32) are connected to the rear side of the base plate (1) in a sliding mode.

4. An internal bore circumference angle gauge according to claim 3, wherein: and a side rod scale layer (35) capable of determining the extending length of the left side rod (31) or the right side rod (32) is connected in the length direction of the left side rod (31) and the right side rod (32).

5. An internal bore circumference angle gauge, as defined in claim 4, wherein: the rotating rod (2) comprises an upper rod (21) and a lower rod (22) which is connected to the upper rod (21) in a sliding mode.

6. An internal bore circumference angle gauge, as defined in claim 5, wherein: the lower end center position of the lower rod (22) is provided with an identification notch (222).

7. An internal bore circumference angle gauge, as defined in claim 6, wherein: the lower end of the lower rod (22) is provided with a marking chute (241) in the vertical direction, a marking sliding shaft (24) is connected in the marking chute (241) in a sliding mode, the upper portion of the marking sliding shaft (24) is connected with the lower rod (22) through a return spring (243), and a chalk sleeve (242) is connected below the marking sliding shaft (24).

8. An internal bore circumference angle gauge according to claim 1 or 7, wherein: angle scale layer (11) inboard is equipped with annular (13) of seting up on base plate (1), dwang (2) upper end is connected with bolt sliding shaft (23), bolt sliding shaft (23) sliding connection has sliding shaft nut (231) in annular (13), threaded connection on bolt sliding shaft (23).

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