CN2755621Y

CN2755621Y - Electric motor lock-testing table

Info

Publication number: CN2755621Y
Application number: CN 200420115644
Authority: CN
Inventors: 刘润海; 兰民山
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-17
Filing date: 2004-11-17
Publication date: 2006-02-01
Anticipated expiration: 2014-11-17

Abstract

A locked-rotor test table for an electric motor mainly relates to the class of short circuit test tools for electric motors. The utility model is designed to solve the problem that a drive shaft of an electric motor does not rotate under the energization condition at the time of short circuit tests for the electric motor. The utility model has the solution technical scheme that a horizontal long hole (2) is arranged on the two long side walls of a test table (1); wire rod holes which are arranged on the two short side walls of the test table (1) are arranged on the same horizontal axis, and a rotating screw rod (3) with a thread nut (4) is arranged in the wire rod holes; one end of the screw rod is provided with a drive handle (5); an inner shelf of the horizontal long hole (2) is provided with a mobile transverse beam (6) connected to the thread nut (4), and both ends of the transverse beam (6) are connected to a gantry (7). The center of the transverse beam of the gantry is provided with a pressing mechanism of a motor. A door frame shaped locked-rotor shelf (9) is fixed at the end of the gantry (7), which is corresponding to the test table (1), screw holes are respectively arranged above and below the locked-rotor shelf, a pressing screw rod (10) and an upper supporting screw rod (4) are respectively arranged in the screw holes, and a handwheel (11), a handle (16), a corresponding brake shoe (13) and a lower brake shoe (15) are respectively arranged on the end heads of the two screw rods. The utility model is mainly suitable for short circuit tests for electric motors after the electric motors are repaired, or when a new electric motor enters a warehouse and other performance tests for electric motors can also be carried out on the table.

Description

The motor rotation blockage testing table

(1) technical field: the utility model belongs to motor performance Testing apparatus field, relates generally to motor short-circuit test utensil class.

(2) background technology: along with the high speed development of industrial and mining enterprises and agricultural modernization, threephase asynchronous obtains a large amount of application as power, because the quality of machine operation environment does not have motor to damage simultaneously, motor after scaling loss is repaired must be measured the every technical requirement of motor, and measuring can be for user's application after qualified.When repairing the back to the motor short-circuit test, the motor of energising must not carried out under the rotation situation, for the energising motor transmission shaft is not rotated, the palpus several people carries out short-circuit test after with yoke, rope the motor transmission shaft binding being killed, because the binding stall of manpower, rare loosening in short-circuit test, the data error that records is just very big.This motor is repaiied back short-circuit test method, when the stall motor, waste time and energy, and the data accuracy that records is also relatively poor.

(3) summary of the invention: technical problem to be solved in the utility model is when to be threephase asynchronous at new machine warehouse-in with after repairing make the motor short-circuit test, motor transmission shaft stall after will switching on mechanical system, eliminating artificial stall wastes time and energy and tests the not high phenomenon of accuracy.

The technical scheme that solves the problems of the technologies described above: the threephase asynchronous lock-testing table comprises test platform and motor rotation blockage hold-down mechanism.The two long sidewall upper edge testing table length directions that it is characterized in that the testing table of rectangular lid shape are shaped on contour horizontal slotted hole, below horizontal slotted hole, be shaped on the lead screw hole of same transverse axis examination from two short sidewalls, the rotating threaded shaft of band screw is housed in the lead screw hole, and an end of rotating threaded shaft is equipped with the gear train of rotating threaded shaft.Two contour horizontal slotted hole internal frames are equipped with moving beam, moving beam and screw are connected, make the axis of moving beam become 90 degree with horizontal slotted hole, the two ends of stretching out the outer moving beam of testing table sidewall are fixed with portal frame, and the crossbeam center dress of portal frame is shaped on adjustable motor hold-down mechanism up and down.At the corresponding testing table of a portal frame end jaggy, stride the motor transmission shaft stall mechanism that the testing table center line is fixed with doorframe shape, the doorframe shape stall frame center line of this mechanism respectively is shaped on a screw up and down, be equipped with in the last screw of doorframe shape stall frame and compress leading screw, handwheel is equipped with in the upper end that compresses leading screw, and the brake shoe bearing is equipped with in the lower end, on the brake shoe bearing brake shoe is housed, in the following screw jackscrew thick stick is housed, brake shoe is equipped with down in the upper end of last jackscrew thick stick, and handgrip is equipped with in the lower end.

The beneficial effects of the utility model: 1, since testing table on movably portal frame is housed, and on the portal frame again the dress be shaped on hold-down mechanism, all be fixed on the testing table very easily the individual size of tested motor no matter be convenient to; 2, because the motor transmission shaft stall mechanism of on the testing table doorframe shape being housed, the formed axis of the brake shoe up and down position of this mechanism is adjustable up and down, no matter motor size, compress leading screw and last jackscrew thick stick as long as adjust, the motor transmission shaft stall with energising that just can be firm is convenient to various model motors are carried out short-circuit test; 3, owing to designed the removable portal frame and the motor rotation blockage mechanism of clamping motor on the testing table, greatly facilitate short-circuit test, reduced labor strength, shortened test period motor, because stall is solid and reliable, test figure accuracy height.

(4) description of drawings:

Fig. 1 is a motor rotation blockage test platform structure synoptic diagram.

Fig. 2 is the side view of Fig. 1.

(5) embodiment:

The utility model comprises testing table, motor transmission shaft stall mechanism, and motor hold-down mechanism three parts are formed.Two long sidewall upper edge testing table length directions of rectangular lid shape testing table 1 are shaped on contour horizontal slotted hole 2, below the horizontal slotted hole 2, be shaped on the lead screw hole of same horizontal axis from two short sidewalls, the rotating threaded shaft 3 of band screw 4 is housed in the lead screw hole, one end of rotating threaded shaft 3 is fixed with transmission handle 5, two contour horizontal slotted hole 2 internal frames are equipped with moving beam 6, and moving beam 6 is connected with nut 4, make the axis of moving beam 6 become 90 degree with horizontal slotted hole.The two ends of stretching out the moving beam 6 of testing table 1 sidewall are fixed with portal frame 7, portal frame screw 8 is equipped with in portal frame crossbeam center, gantry leading screw 17 is housed in this screw, one end of this leading screw is equipped with motor and compresses handwheel 18, the other end is equipped with motor pressing plate 19, at portal frame 7 corresponding testing table 1 ends jaggy, stride the motor transmission shaft stall mechanism that the testing table center line is fixed with doorframe shape, the doorframe shape stall frame 9 of this mechanism respectively is shaped on a screw up and down along center line, be equipped with in the last screw of doorframe shape stall frame and compress leading screw 10, handwheel 11 is equipped with in the upper end that compresses leading screw 10, brake shoe bearing 12 is equipped with in the lower end, and brake shoe 13 is housed on the brake shoe bearing, in the following screw jackscrew thick stick 14 is housed, brake shoe 15 is equipped with down in the upper end of last jackscrew thick stick, and handgrip 16 is equipped with in the lower end.

The utility model is installed in the repairing motor place, when the threephase asynchronous after repairing is carried out short-circuit test, motor is hung on testing table, drive axle of motor is stretched under the doorframe shape stall frame, and motor is adjusted on the center line of testing table, and shake transmission handle 5, portal frame is moved above motor case, shake motor and compress handwheel 18, motor pressure strip 19 is pressed on the motor firmly.Adjust then and compress leading screw 10 and last jackscrew thick stick 14 on the doorframe shape stall frame, make brake shoe 13, down brake shoe 15 firm hold motor transmission shaft tightly, just can switch on, motor carries out the motor short-circuit test under the stall situation.

Claims

1, the motor rotation blockage testing table, it comprises test platform and motor rotation blockage hold-down mechanism, it is characterized in that on the two long sidewalls of testing table (1) of rectangular lid shape, be shaped on contour horizontal slotted hole (2) along the testing table length direction, below horizontal slotted hole (2), be shaped on the lead screw hole of same horizontal axis from two short sidewalls, the rotating threaded shaft (3) of band screw (4) is housed in the lead screw hole, one end of rotating threaded shaft (3) is equipped with the gear train of rotating threaded shaft, two contour slotted hole (2) internal frames are equipped with moving beam (6), moving beam (6) is connected with line mother (4), make the axis of moving beam (6) become 90 degree with horizontal slotted hole (2), the two ends of stretching out the outer moving beam (6) of testing table (1) sidewall are fixed with portal frame (7), the crossbeam center dress of portal frame is shaped on adjustable motor hold-down mechanism up and down, at the corresponding testing table of portal frame (7) (a 1) end jaggy, stride the motor transmission shaft stall mechanism that the testing table center line is fixed with doorframe shape, the doorframe shape stall frame (9) of this mechanism respectively is shaped on a screw up and down along center line, be equipped with in the last screw of doorframe shape stall frame and compress leading screw (10), handwheel (11) is equipped with in the upper end that compresses leading screw, brake shoe bearing (12) is equipped with in the lower end, brake shoe (13) is housed on the brake shoe bearing, jackscrew thick stick (14) is housed in the following screw, brake shoe (15) is equipped with down in the upper end of last jackscrew thick stick, and handgrip (16) is equipped with in the lower end.

2, the gear train that motor rotation blockage testing table according to claim 1, an end that it is characterized in that described leading screw (3) are equipped with rotating threaded shaft is in the termination of leading screw (3) transmission handle (5) to be installed.

3, motor rotation blockage testing table according to claim 1 and 2, the crossbeam center dress that it is characterized in that described portal frame (7) is shaped on up and down, and adjustable motor hold-down mechanism is that portal frame screw (8) is housed at the center of portal frame crossbeam, gantry leading screw (17) is housed in the portal frame screw (8), one end of gantry leading screw is equipped with motor and compresses handwheel (18), and the other end is equipped with motor pressing plate (19).