CN201083570Y

CN201083570Y - Disc type constant torque loading unit

Info

Publication number: CN201083570Y
Application number: CNU2007200714933U
Authority: CN
Inventors: 章伯超; 李锋; 刘晨阳; 卢卫国; 潘发生
Original assignee: SHANGHAI BRANCH OF COAL SCIENCE GENERAL INST
Current assignee: SHANGHAI BRANCH OF COAL SCIENCE GENERAL INST
Priority date: 2007-06-22
Filing date: 2007-06-22
Publication date: 2008-07-09
Anticipated expiration: 2017-06-22

Abstract

The utility model provides a disc type constant torque loading device, which mainly solves the technical problem of simulation loading, etc. of the soft start equipment. The technical proposal is that base plates on both sides of a braking disc are respectively hinged with a set of baking arms in symmetry, each baking arm is hinged with a damper brake in the middle, each free end of the baking arm is provided with a baking connection rod and two ends of each baking connection rod are provided with an adjusting component respectively. The utility model is suitable for the test loading on soft starting equipment of various large mining machineries.

Description

The permanent moment of torsion charger of disc type

Technical field

The utility model relates to a kind of testing equipment, particularly a kind of loading equipemtn.

Background technology:

At present, many collieries with heavy mechanical equipment such as large power long apart from power from belt conveyor, blower fan, plant equipment such as water pump, when starting, necessary steadily slow start, to guarantee the safety of this class main equipment, operation reliably, can reduce simultaneously impact and fluctuation to electrical network, at above-mentioned technical requirement, the dealer researches and develops various supporting " steadily slow start equipment "---i.e. " soft start equipment ", soft start equipment can include variable speed fluid coupling, the sticking device of liquid and electric soft start equipment or the like, above-mentioned various types soft starting device, identify in research and development, the equipment typing, verification in the production run, the product qualification or the like of dispatching from the factory, all must to equipment (or product) under the condition that corresponding heavy mechanical equipment actual operating mode cooperates, can make and judge accurately whether this soft start equipment meets the technical requirement of respective standard and the actual demand of colliery operation; But colliery heavy mechanical equipment, its size is huge, complex structure, with these equipment the supporting of soft starting device checked, test, there is greatly difficulty technically, also can't bear economically, checking all is to carry out experimental measurement under non-actual condition, whether really possess under the load of setting as for these soft start equipment, steadily slow start, the especially large-scale colliery plant equipment of using in important place, can realize soft start function, all there is uncertain hidden danger, can brings serious safety problem, obviously to colliery production, how accurately the real load of analog soft start equipment is the technical matters that needs to be resolved hurrily.

The utility model content:

Technical problem to be solved in the utility model is, provide a kind of disc type permanent moment of torsion charger, it can provide the fictitious load of colliery heavy mechanical equipment actual operating mode, makes soft start equipment can identify, check, guarantee the security and the reliability of Coal Production accurately on testing table.

The technical scheme in the invention for solving the above technical problem is: the permanent moment of torsion charger of disc type includes pedestal, brake disc and damper brake, the transmission shaft of brake disc is arranged on the bearing support of pedestal, the drive motor of this transmission axle head and tested mechanical soft start equipment or electric soft start equipment is to drive and is connected, be characterized in: on pedestal, the both sides that are positioned at brake disc end face symmetry respectively are hinged with one group of brake arm, all be hinged with the damper brake that an energy and brake disc end face touch at the middle part of each brake arm, free end at each brake arm all is equipped with a brake connecting rod, two ends at each brake connecting rod, the outside at brake arm is respectively arranged with adjusting part.Handle adjusting part, each brake arm free end is made the subtend brake disc around the pedestal hinge and is moved, and drives the damper brake pressing simultaneously to brake disc, sets up the loading load of permanent moment of torsion on brake disc, and with the variation of the big or small control loaded load of regulated quantity.

The utility model is with above-mentioned simple structure, can simulate the load of colliery heavy mechanical equipment actual operating mode, brake disc can be simulated the moment of inertia of corresponding plant equipment, thereby realize starting load as soft start equipment, solved the technical matters that the present technique field had not solved for a long time, can make machinery or electric soft start equipment on testing table, identify accurately, check, thereby guarantee the security and the reliability of Coal Production, have great economic implications and social benefit.

Description of drawings:

Fig. 1 is the permanent moment of torsion charger of a utility model disc type front elevation.

Fig. 2 be among Fig. 1 A to view.

Embodiment:

With reference to Fig. 1,2, the permanent moment of torsion charger of disc type includes pedestal 1, brake arm 2, damper brake 3, brake connecting rod 4, brake disc 5.

Pedestal 1, it is the foundation support spare of device, its bottom surface can be fixed on the basis of testing table, it is provided with bearing support 12 as Fig. 2, the bearing of bearing support 12 is equiped with the transmission shaft 52 of brake disc 5, the drive motor of these transmission shaft 52 ends and tested mechanical soft start equipment or electric soft start equipment is to drive and is connected, and one group of hinged support also is set on pedestal 1, can be connected to form lower link point 11 with brake arm 2.

Brake arm 2 is rod members of a transmission power, and its lower end is articulated in the hinged support of pedestal 1, forms lower link point 11, and brake arm 2 can be around pin joint 11 swings;

Appropriate position at brake arm 2 middle parts, brake arm 2 and damper brake 3 are formed with upper link point 21 jointly;

Offer a through hole in the upper end of brake arm 2, this through hole brake connecting rod 4 that can stretch through;

The quantity of brake arm 2 amounts to 4 as shown in Figure 1, 2, is symmetrical arranged in twos, and a brake connecting rod 4 has stretched through in each right through hole.

Damper brake 3 is provided with a damper brake 3 at the middle part of each brake arm 2 and is hinged state, is provided with a friction disc 31 at an end of damper brake 3 nearly brake discs 5, and the resistance coefficient of friction disc remains steady state value substantially in the design temperature scope;

Damper brake 3 can be pressed together on a pair of friction disc 31 of symmetry on the end face 51 of brake disc 5 under the drive of brake arm 2, thereby forms the moment of resistance of the brake disc 5 that rotates.

Brake connecting rod 4, its two ends are extended through brake arm 2 upper end through holes respectively, and the outer respectively outside of stretching in brake arm 2, on this overhanging section, be arranged with support pads 411 and flexible member 412 in regular turn respectively, and be installed with setting nut 413, the adjusting part 41 of above-mentioned three's constituent apparatus in outermost;

The function of adjusting part 41 is to regulate the loading load value of charger, mainly is to rely on the force value of regulating flexible member 412, and flexible member 412 can be volute spring, butterfly spring or other similar component.

Brake disc 5, it is a rotatable disc, be connected with a transmission shaft 52 in the disc centre driving, the end of this transmission shaft 51 can drive and connect the tested mechanical soft start equipment or the drive motor of electric soft start equipment, the size of brake disc 5 diameters, can select according to the corresponding moment of inertia of colliery big machinery, in the hope of the moment of inertia of simulation actual loading.

During test, the loading moment of adjusting the permanent moment of torsion of disc type starts soft start equipment, up to the rated speed off-test to required load torque under specified constant torque load; The adjusting of loading moment is: the setting nut 413 that rotates adjusting part 41, make flexible member 412 generation distortion and be formed with spring force F, this power is ordered about two brake arms 2 and is clamped the application of force along brake connecting rod 4 to brake disc 5, the friction disc 31 that brake arm 2 drives damper brake 3 presses the end face 51 at brake disc 5, the moment of resistance M that produce this moment on brake disc 5 _fBe expressed as follows formula:

M _f∞F′·f·R

The acting force that F ' transforms for spring force F in the formula, friction disc resistance coefficient f and radius of action R are definite value, so resistance M _fSquare and spring force F are proportional, set up adjusting part 41 in the test after, this moment of resistance M _fBe definite value, be the permanent moment of torsion loading moment of disc type value.

Claims

1. the permanent moment of torsion charger of a disc type, include pedestal, brake disc and damper brake, the transmission shaft of brake disc is arranged on the bearing support of pedestal, and the drive motor of this transmission axle head and tested mechanical soft start equipment or electric soft start equipment is to drive and is connected, and it is characterized in that:

A. on pedestal (1), the both sides that are positioned at brake disc (5) end face (51) symmetry respectively are hinged with one group of brake arm (2);

B. all be hinged with the damper brake (3) that an energy and brake disc (5) end face (51) touch at the middle part of each brake arm (2);

C. the free end at each brake arm (2) all is equipped with a brake connecting rod (4);

D. at the two ends of each brake connecting rod (4), the outside in brake arm (2) is respectively arranged with adjusting part (41).

2. the permanent moment of torsion charger of disc type according to claim 1 is characterized in that damper brake (3) is provided with friction disc (31), and the friction disc end face (51) direct and brake disc (5) that loads under the duty touches.

3. the permanent moment of torsion charger of disc type according to claim 1, it is characterized in that adjusting part (41) includes support pads (411), flexible member (412) and setting nut (413), support pads (411) is set in brake connecting rod (4) and is positioned at brake arm (2) outside, flexible member (412) is set in brake connecting rod (4), one end item is held in support pads (411), and other end item is held in and revolves the setting nut (413) that is located at brake connecting rod (4) end.