CN2305666Y - Magnetic float counter friction moment calibrator for measurer - Google Patents

Abstract

The utility model relates to a magnetic floating type counter friction moment calibrator for a measurer. A cross spring leaf and a vertical spring leaf which are connected with a loading conversion lever are arranged on a mounting board which is connected to a base seat; a weight hook which is connected with a weight pan, a balance weight and a load transfer member are arranged on the loading conversion lever, and a weight protecting case is also arranged on the mounting board. A guide rail and a carrier frame are arranged on the base seat, and a guide board driving mechanism which is arranged on the carrier frame is sheathed in a guide board which is connected with a lower support board. A support post, a sensor frame and a lower bearing seat are arranged on the lower support board, wherein, the sensor frame is provided with a luminous tube and a photosensitive tube, and the lower bearing seat is provided with a lower magnetic floating bearing and a cylindrical bearing inside; an upper support board which is connected with the top end of the support post is provided with an upper bearing and a hairspring frame.

Description

Maglev type counter friction torque testing instrument caliberating device

The utility model belongs to the general field of measuring techniques of measuring torque, merit, mechanical output, mechanical efficiency, is specifically related to rotary-transmission dynamometer.

Maglev type counter friction torque testing instrument is newly designed a kind of testing tool, no any calibrating instrument or device are demarcated this instrument at present, do not do demarcation for testing tool and directly put into production and use in the practice, data that testing tool is surveyed are insecure.

The purpose of this utility model is can directly demarcate for maglev type counter friction torque testing instrument provides a kind of, simple in structure, stated accuracy is high, the caliberating device of stable performance.

For achieving the above object; the solution that the utility model adopts is: the installing plate that is connected in base one side is provided with crossed strip sheet and vertical spring leaf; crossed strip sheet and vertical spring leaf link with the loading shifter lever that vertical force can be converted to horizontal force respectively; one end of loading shifter lever is connected with the scale pan that can place counterweight by the counterweight hook; the other end is provided with counterweight; upside is connected with the force transmission element that the vertical survey axle with quilt demarcation maglev type counter friction torque testing instrument is linked, and also is provided with the counterweight protection box that is installed in counterweight hook and scale pan and counterweight periphery on installing plate.Opposite side at base is connected with carriage and guide rail, on carriage, establish outer cover and be contained in the guide plate that links with lower carrier plate and the guide plate driving mechanism that guide plate is slided along guide rail, on lower carrier plate, be provided with column, be equipped with luminotron and photosensitive tube sensor frame and in the step of floating lower bearing of magnetic and cylindrical bearing is housed.The upper supporting plate that is connected in the column top be provided with hairspring holder that hairspring one end with the vertical survey axle system of being demarcated maglev type counter friction torque testing instrument is linked and in the top chock of jewel bearing is housed.

Crossed strip sheet of the present utility model is orthogonal in different planes with vertical spring leaf.Loading shifter lever of the present utility model is for linking in same plane and mutually perpendicular horizontal lever and vertical lever.Laterally an end of lever is connected with scale pan, the other end that can place counterweight by the counterweight hook and is provided with counterweight, laterally balance reprovision one side of lever connects with the crossed strip sheet, the lower end of vertical lever connects with vertical spring leaf, and the upside of vertical lever connects with an end of force transmission element.Guide plate driving mechanism of the present utility model is: an end and the opposite side that is sleeved on the guide plate inner screw is arranged on the carriage, the outer cover of the other end is equipped with its end of spring and is connected with turn-knob.

Force transmission element of the present utility model is a filament.

The utility model can directly be demarcated maglev type counter friction torque testing instrument, have simple in structure, stated accuracy is high, advantage such as stable and reliable for performance.The key technical indexes of the present utility model is: measurement range is 0.002 μ Nm in the uncertainty of 0～0.5 μ Nm (Nm is a Newton meter).

Fig. 1 is the structural representation of an embodiment of the utility model.

Fig. 2 is the A-A sectional view among Fig. 1.

Fig. 3 is that the vertical survey axle of quilt demarcation maglev type counter friction torque testing instrument among Fig. 1 is the structural representation of grating dish.

Below in conjunction with drawings and Examples the utility model is further described.

In Fig. 1, installing plate 1 has been fixedly connected in the left side of base 27, the installing plate 1 of present embodiment is a rectangle, above the left side of installing plate 1 with the screw threads for fastening connector vertical spring leaf fixed block 36 that has been fixedly connected, the below is with the screw threads for fastening connector crossed strip sheet fixed block 34 that has been fixedly connected, be connected on the vertical spring leaf fixed block 36 with the upper end of screw threads for fastening connector vertical spring leaf 35, the left end of crossed strip sheet 29 is connected on the crossed strip sheet fixed block 34, crossed strip sheet 29 is orthogonal in different planes with vertical spring leaf 35, play supporting role.

The loading shifter lever 2 of present embodiment is to be made of horizontal lever 2-2 that is connected as a single entity and vertical lever 2-1, and laterally lever 2-2 and vertical lever 2-1 are orthogonal in same plane.The right-hand member of crossed strip sheet 29 connects with the right side of screw threads for fastening connector with horizontal lever 2-2, the lower end of vertical spring leaf 35 connects with the lower end of screw threads for fastening connector with vertical lever 2-1, mutually perpendicular crossed strip sheet 29 and vertical spring leaf 35 are as the supporting of loading shifter lever 2, moment of friction is minimum, and the data that make the utility model demarcate have higher degree of accuracy.Laterally the left end of lever 2-2 is connected with counterweight hook 32, the counterweight hook hangs with scale pan 30 32 times, at timing signal, can place counterweight 31 on the scale pan 30, right-hand member at horizontal lever 2-2 is placed with counterweight 28, counterweight 28 be used for balance the utility model at timing signal not, be when not placing counterweight 31 on the scale pan 30, the gravity torque of balance loading shifter lever 2, when the gravity torque of the gravity torque of counterweight 28 and loading shifter lever 2 balances each other, correct on the vertical lever 2-1 and aim at the balance zero reference line of being carved on the installing plate 13.Upside at vertical lever 2-1 is connected with force transmission element, and the force transmission element of present embodiment adopts filament 4, adopts nylon wire particularly, also can adopt other filament etc.The other end of filament 4 will link with the vertical survey axle 9 of the maglev type counter friction torque testing instrument of being demarcated.

Left end at installing plate 1 is connected with counterweight protection box 33, and counterweight protection box 33 is sleeved on the outside of counterweight hook 32 and scale pan 30 and counterweight 31, is used to protect counterweight hook 32 and scale pan 30 and counterweight 31.

Be connected with guide rail 22 on the right side of base 27, the xsect of guide rail 22 is a swallow tail shaped slot, two ends at the length direction of guide rail 22 are connected with carriage 20, carriage 20 is fixed on the base 27, on guide rail 22, be placed with guide plate 21, the xsect of guide plate 21 is a swallow-tail form, center at guide plate 21 length directions is processed with screw, on carriage 20, be connected with guide plate driving mechanism, the guide plate driving mechanism of present embodiment is by screw rod 19, spring 17, turn-knob 18 connects formation, screw rod 19 is screwed in the screw of guide plate 21, the left end of screw rod 19 and right side are installed on the carriage 20, and the right-hand member outer cover of screw rod 19 is equipped with spring 17, the end is connected with turn-knob 18 with the screw threads for fastening connector.Rotate turn-knob 18, make guide plate 21 move left and right on guide rail 22.Guide plate driving mechanism be used for the utility model when not hanging counterweight 31, adjust vertical lever 2-1 on correct the balance zero reference line of aiming on the installing plate 13.

With the screw threads for fastening connector lower carrier plate 16 that has been fixedly connected, thread connection has three root posts 11 on lower carrier plate 16 on guide plate 21, and column 11 plays a supportive role.Step 23 is housed on lower carrier plate 16, cylindrical bearing 24 is housed below the step 23, be alignment bearing, the floating lower bearing 25 of magnetic is housed above the cylindrical bearing 24.Sensor frame 14 also is housed on lower carrier plate 16, be equipped with above the sensor frame 14 luminotron 13, below photosensitive tube 15 is installed, luminotron 13 links to each other with power supply by lead, photosensitive tube 15 is connected with computing machine by cable, luminotron 13 is used to launch light signal, and photosensitive tube 15 is used for receiving optical signals.

Top thread connection at three root posts 11 has upper supporting plate 5, top chock 7 is installed on the upper supporting plate 5, jewel bearing 8 is housed in the top chock 7, and an end of hairspring holder 6 is fixed on the upper supporting plate 5, the other end will connect with hairspring 10 1 ends of the vertical survey axle system of being demarcated maglev type counter friction torque testing instrument.

When demarcating maglev type counter friction torque testing instrument with the utility model, system takes off from this instrument with the vertical survey axle, vertical survey axle system comprises vertical survey axle 9, be connected in the hairspring 10 on vertical survey axle 9 tops, be connected in vertical survey axle 9 bottoms grating dish 12, be bonded in grating dish 12 lower surfaces and be sleeved on the outer floating head bearing 26 of magnetic of vertical survey axle 9, the magnetic pole of floating head bearing 26 bottoms of magnetic should be installed in lower carrier plate 16 on the magnetic pole on floating lower bearing 25 tops of magnetic identical.With the upper end of the vertical survey axle 9 of vertical survey axle system be installed in the jewel bearing 8 on the upper supporting plate 5, the lower end is installed in the cylindrical bearing 24 on the lower carrier plate 16, the floating head bearing 26 of magnetic constitutes magnetic bearing with the floating lower bearing 25 of magnetic, under magneticaction, vertical survey axle 9 upwards floats, one end of hairspring 10 connects with the other end of hairspring holder 6, and grating dish 12 should place between luminotron 13 and the photosensitive tube 15.

Principle of work of the present utility model is as follows:

With the utility model maglev type counter friction torque testing instrument is carried out timing signal, determine to demarcate the moment scope, calculate the quality of counterweight 31 by the concrete torque meter of determining according to the measurement range of maglev type counter friction torque testing instrument.The operator is placed on counterweight 31 on the scale pan 30, under the action of gravity of counterweight 31, the left end of horizontal lever 2-2 moves down, right-hand member moves up, the upper end of vertical lever 2-1 rotates counterclockwise, loading shifter lever 2 converts the gravity of counterweight 31 vertical direction to the acting force of horizontal direction, through filament 4 masterpiece of horizontal direction is used on the vertical survey axle 9, vertical survey axle 9 suffered moments are $M=\frac{a}{b}\mathrm{rmg}$

M is the quality of counterweight 31 in the formula, and g is an acceleration of gravity, and r is the radius of the vertical survey axle 9 of maglev type counter friction torque testing instrument, and a is the length of the horizontal lever 2-2 of loading shifter lever 2, and b is the length of the vertical lever 2-1 of loading shifter lever 2.

Vertical survey axle 9 is under the effect of moment M, to rotate, vertical survey axle 9 drives grating dish 12 and rotates, the visible light that is sent by luminotron 13 is through the gap between grating dish 12 outers, two shading teeth 12-1, received by photosensitive tube 15, photosensitive tube 15 converts the light signal that is received to electric signal and sends into computing machine and carry out data processing, calculates the rotational angle θ of vertical survey axle 9, the moving 1 ° of suffered moment of vertical survey axle 9 revolutions is calibration value, and calibration value is $\frac{M}{\mathrm{\θ}}\·$

Claims (3)

1. maglev type counter friction torque testing instrument caliberating device, it is characterized in that: the installing plate [1] that is connected in base [27] one sides is provided with crossed strip sheet [29] and vertical spring leaf [35], crossed strip sheet [29] and vertical spring leaf [35] link with the loading shifter lever [2] that vertical force can be converted to horizontal force respectively, one end of loading shifter lever [2] is connected with the scale pan [30] that can place counterweight [31] by counterweight hook [32], the other end is provided with counterweight [28], upside is connected with the force transmission element that the vertical survey axle [9] with quilt demarcation maglev type counter friction torque testing instrument is linked, and also is provided with to be installed in the peripheral counterweight protection box [33] of counterweight hook [32] and scale pan [30] and counterweight [31] on installing plate [1];

Opposite side at base [27] is connected with carriage [20] and guide rail [22], on carriage [20], establish outer cover and be contained in the guide plate [21] that links with lower carrier plate [16] and the guide plate driving mechanism that guide plate [21] is slided along guide rail [22], on lower carrier plate [16], be provided with column [11], be equipped with luminotron [13] and photosensitive tube [15] sensor frame [14] and in the step [23] that magnetic floats lower bearing [25] and cylindrical bearing [24] is housed;

The upper supporting plate [5] that is connected in column [11] top be provided with hairspring holder [6] that hairspring [10] one ends with the vertical survey axle system of being demarcated maglev type counter friction torque testing instrument are linked and in the top chock [7] of jewel bearing [8] is housed.

2. according to the described maglev type counter of claim 1 friction torque testing instrument caliberating device, it is characterized in that: said crossed strip sheet [29] is orthogonal in different planes with vertical spring leaf [35]; Said loading shifter lever [2] is for linking in same plane and mutually perpendicular horizontal lever [2-2] and vertical lever [2-1]; Laterally an end of lever [2-2] is connected with scale pan [30], the other end that can place counterweight [31] by counterweight hook [32] and is provided with counterweight [28], laterally balance reprovision [28] one sides of lever [2-2] connect with crossed strip sheet [29], the lower end of vertical lever [2-1] connects with vertical spring leaf [35], and the upside of vertical lever [2-1] connects with an end of force transmission element; Said guide plate driving mechanism is: an end and the opposite side that is sleeved on guide plate [21] inner screw [19] is arranged on the carriage [20], the outer cover of the other end is equipped with its end of spring [17] and is connected with turn-knob [18].

3. according to claim 1 or 2 described maglev type counter friction torque testing instrument caliberating devices, it is characterized in that: said force transmission element is filament [4].

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