CN203203731U

CN203203731U - Jig capable of measuring torque of cylindrical helical torsion spring

Info

Publication number: CN203203731U
Application number: CN 201220699932
Authority: CN
Inventors: 史祺; 王铁镰; 刘冬英
Original assignee: Tianjin Baili Electronic Co Ltd
Current assignee: Tianjin Baili Electronic Co Ltd
Priority date: 2012-12-18
Filing date: 2012-12-18
Publication date: 2013-09-18
Anticipated expiration: 2022-12-18

Abstract

The utility model relates to a jig capable of measuring the torque of a cylindrical helical torsion spring. The jig is characterized in that the jig includes a lever rotating shaft, a driving rotating shaft, a screw combination piece, a cushion block with a central hole and a fixing metal sheet; the lever rotating shaft comprises a first fixing plate, a bearing lever and a first short positioning shaft; the driving rotating shaft comprises a second fixing plate, a shaft perpendicular to the plane of the second fixing plate, a second short positioning shaft, and a rotating shaft with a handle, wherein the rotating shaft with a handle is perpendicular to the plane of the second fixing plate; a free end surface of the shaft is provided with a screw thread; the fixing metal sheet is provided with a cylinder which is bent so as to surrounded the rotating shaft; and the outer diameter of the shaft is slightly smaller than the inner diameter of a tested cylindrical helical torsion spring. With the jig of the utility model composed of the lever rotating shaft, the driving rotating shaft, the fixing metal sheet, the cushion block and the screw combination piece adopted, the torque of the cylindrical helical torsion spring can be measured. The jig capable of measuring the torque of the cylindrical helical torsion spring is economical and practical, and is convenient for engineering technical personnel to perform qualitative analysis on and design low voltage electrical appliance products.

Description

Can measure the mold of cylindroid helical-coil torsion spring moment of torsion

Technical field

The utility model belongs to a kind of mold, particularly relates to a kind of mold of measuring the cylindroid helical-coil torsion spring moment of torsion.

Background technology

In present known low-voltage electrical apparatus switch, often use the bigger cylindroid helical-coil torsion spring of material diameter, because the instrument range ability of measurement torsion spring moment of torsion commonly used is little, can't measure the bigger high pulling torque cylindroid helical-coil torsion spring of this material diameter, be unfavorable for that engineering technical personnel analyze the design low-pressure electronic equipment product.

Summary of the invention

The utility model provides the mold of a kind of not only economy but also the practical cylindroid helical-coil torsion spring measured moment of torsion for solving the technical matters that exists in the known technology.

The technical scheme that the utility model is taked for the mold that can measure the cylindroid helical-coil torsion spring moment of torsion for the technical matters that exists in the solution known technology is: it includes a lever shaft, an active rotating shaft, a set screws component, cushion block and a fixing metal sheet that has center pit; Described lever shaft includes first fixed head, 1 meter the lever be longer than that extends along the described first fixed head plane and be connected on it, one perpendicular to the described first fixed head board plane and first locating shaft on it of being connected, and a circular hole is arranged at the center of described first fixed head; Described active rotating shaft includes second fixed head, a perpendicular axle of board plane and one perpendicular second locating shaft that is fixed on described second fixed head of board plane is therewith arranged at the side of described axle therewith is connected at the center of a side plane of described second fixed head, an end of the perpendicular rotating shaft of board plane therewith in the heart is connected in the another side of described second fixed head, the other end of described rotating shaft is fixed with a perpendicular handle of rotating shaft therewith, at the free end face of described axle one threaded hole is arranged; The free-ended threaded hole of the axle on described set screws component and described second fixed head is complementary, and this set screws component external thread size less than the diameter of described cushion block center pit so that described thread set component can be smoothly center pit by described cushion block; The width of described fixing metal sheet is the length less than described rotating shaft, and described fixing metal sheet is with its doubling, thereby and present one in its fold position and be bent into the cylinder that described rotating shaft can be surrounded wherein and described rotating shaft can be surrounded wherein; So that this axle can pass through smoothly, the diameter of described axle is less than the diameter of described rotating shaft greater than the diameter of the axle on described second fixed head for center hole diameter on described first fixed head in addition; The external diameter of described axle also less than the internal diameter of tested cylindroid helical-coil torsion spring so that tested cylindroid helical-coil torsion spring can successfully be enclosed within on the described axle.

Advantage and the good effect that the utlity model has are: owing to adopted the mold of being made up of lever shaft, active rotating shaft, fixing metal sheet, cushion block, set screws component, described mold namely can be measured the moment of torsion of cylindroid helical-coil torsion spring, this scheme not only economy but also practicality make things convenient for engineering technical personnel's qualitative analysis design low-voltage electric equipment products.

Description of drawings

Fig. 1 is the structural representation of the utility model lever shaft;

Fig. 2 is the structural representation of the utility model active rotating shaft;

Fig. 3 is the structural representation of the utility model set screws component;

Fig. 4 is the structural representation of the utility model cushion block;

Fig. 5 is the structural representation of the utility model fixing metal sheet;

Structural representation when Fig. 6 is the utility model measurement cylindroid helical-coil torsion spring moment of torsion.

Embodiment

For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

As shown in Figure 1, lever shaft is made up of lever 3, locating shaft 1 and fixed head 2, lever 3 is connected on the side of fixed head 2 along fixed head 2 face bondings, one end distance of lever 3 non-welding from fixed head 2 centers greater than 1 meter, locating shaft 1 is vertically welded on the fixed head 2, the diameter of the intrinsic circular hole 4 in the center of fixed head 2, the slightly larger in diameter of circular hole 4 axle 6 in Fig. 2 makes axle 6 can pass hole 4.

As shown in Figure 2, active rotating shaft is made up of fixed head 8, locating shaft 7, rotating shaft 9 and handle 10, intrinsic one 6 of rotating shaft 9 one ends, the diameter of axle 6 is less than the diameter of rotating shaft remainder, be slightly less than the internal diameter of tested cylindroid helical-coil torsion spring 15 simultaneously, can pass simultaneously the hole 4 of fixed head 2 among Fig. 1, the axle 6 in the rotating shaft 9 passes the center of fixed head 8 perpendicular to fixed head 8 and welds together with fixed head 8, and there is a threaded hole 5 termination of axle 6.Locating shaft 7 is vertically welded on the fixed head 8, and handle 10 is welded on the other end of the rotating shaft 9 relative with threaded hole 5 perpendicular to rotating shaft 9.

As shown in Figure 3, set screws component 11 sizes and threaded hole 5 sizes coupling.

As shown in Figure 4, the intrinsic circular hole 13 in cushion block 12 centers, circular hole 13 slightly larger in diameter are in the external thread size of set screws component 11.

As shown in Figure 5, stator 14 is made by thin aluminum alloy sheet, to surround cylindrical shape in the fold position after its doubling, the diameter of the slightly larger in diameter of cylinder part between Fig. 2 rotating shaft 9 upper mounted plates 8 and handle, the width of stator 14 is less than the distance of Fig. 2 shaft 9 between fixed head 8 and handle 10, and length is can be fixed on bench vice after the doubling to be advisable.

As shown in Figure 6, when measuring the moment of torsion of cylindroid helical-coil torsion spring 15, at first stator 14 is enclosed within the rotating shaft 9 of Fig. 2 active rotating shaft, stator 14 is fixed on bench vice, cylindroid helical-coil torsion spring 15 is enclosed within on the axle 6 of Fig. 2 active rotating shaft, hole 4 with Fig. 1 lever shaft is enclosed within on the axle 6 again, pad 12 is filled up on the hole 4 of Fig. 1 fixed head 2, with set screws component 11 that the axle 6 on pad 12 and the active rotating shaft is fixing, make Fig. 1 lever shaft not deviate from from axle 6, and make Fig. 1 lever shaft to rotate relative to axle 6, the locating shaft 1 of lever shaft and the locating shaft 7 of active rotating shaft be other two outsides of turning round arm at cylindroid helical-coil torsion spring 15 respectively.In the measuring process, turning handle 9, simultaneously hang sliding weight of steelyard at 1 meter, lever 9 fixed distance plates, 2 centers of circle, make lever 9 keep horizontal level always, two angles of turning round arm of cylindroid helical-coil torsion spring 15 can diminish, when turning handle 10 makes postrotational angle when turning round the arm angle and equaling to use, measure the gravity at 1 meter of gravity and lever 9 fixed distance plates, 2 centers of circle that is suspended on the sliding weight of steelyard on the lever, both sums multiply by 1 meter moment of torsion that is cylindroid helical-coil torsion spring 15.

Claims

1. the mold that can measure the cylindroid helical-coil torsion spring moment of torsion, it is characterized in that: it includes a lever shaft, an active rotating shaft, a set screws component, cushion block and a fixing metal sheet that has center pit; Described lever shaft includes first fixed head, 1 meter the lever be longer than that extends along the described first fixed head plane and be connected on it, one perpendicular to the described first fixed head board plane and first locating shaft on it of being connected, and a circular hole is arranged at the center of described first fixed head; Described active rotating shaft includes second fixed head, a perpendicular axle of board plane and one perpendicular second locating shaft that is fixed on described second fixed head of board plane is therewith arranged at the side of described axle therewith is connected at the center of a side plane of described second fixed head, an end of the perpendicular rotating shaft of board plane therewith in the heart is connected in the another side of described second fixed head, the other end of described rotating shaft is fixed with a perpendicular handle of rotating shaft therewith, at the free end face of described axle one threaded hole is arranged; The free-ended threaded hole of the axle on described set screws component and described second fixed head is complementary, and this set screws component external thread size less than the diameter of described cushion block center pit so that described thread set component can be smoothly center pit by described cushion block; The width of described fixing metal sheet is the length less than described rotating shaft, and described fixing metal sheet is with its doubling, thereby and present one in its fold position and be bent into the cylinder that described rotating shaft can be surrounded wherein and described rotating shaft can be surrounded wherein; So that this axle can pass through smoothly, the diameter of described axle is less than the diameter of described rotating shaft greater than the diameter of the axle on described second fixed head for center hole diameter on described first fixed head in addition; The external diameter of described axle also less than the internal diameter of tested cylindroid helical-coil torsion spring so that tested cylindroid helical-coil torsion spring can successfully be enclosed within on the described axle.