CN2285029Y

CN2285029Y - DC permanent-magnet linear motor

Info

Publication number: CN2285029Y
Application number: CN 96246158
Authority: CN
Inventors: 金庆武
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-12-25
Filing date: 1996-12-25
Publication date: 1998-06-24
Anticipated expiration: 2006-12-25

Abstract

The utility model belongs to the technical field of a motor. A DC permanent magnetism type linear motor is composed of a linear motor and a controlling circuit, wherein, the linear motor is composed of a main shaft, a casing body, coils, a large movable iron core, a small movable iron core, a copper bush, etc. The main shaft is made of stainless steel. The small movable iron core is formed by the combination of A 3 steel rings and Nd-Fe-B magnetic rings. The large movable iron core is composed of three ring bodies, wherein, two ring bodies are an embedded permanent magnet and a large iron core provided with a buffer spring; another ring body is a middle copper ring. The components are assembled into the casing body in sequence and matched with the controlling circuit to for the DC permanent magnetism type linear motor. The utility model has the characteristics of compact structure, small size, energy saving, wide purpose and low cost and can be directly applied to a mechanism device which needs a reciprocating rectilinear motion.

Description

The direct current permanent magnetic linear electric motors

The utility model belongs to technical field of motors, and particularly a kind of direct current permanent magnetic linear reciprocating motor is suitable for plunger displacement pump, planer, and oil elevator etc. needs the plant equipment field of linear reciprocating motion.

At present plant equipment realizes that it is power source that linear reciprocating motion generally adopts with air pressure or oil pressure, promotion piston realization linear reciprocating motion, or with the electric rotating machine be power through bent axle, crank changes turn power into rectilinear motion.Aforesaid way all needs intermediate conversion links, so it is many to expend the energy, and manufacturing cost height, complex structure.

Given this, the purpose of this utility model is to provide a kind of direct current permanent magnetic linear electric motors of direct linear movement output power, can directly apply among the plant equipment that needs linear reciprocating motion, has designs simplification, characteristics energy-conservation, with low cost.

The purpose of this utility model realizes by following technical measures: the direct current permanent magnetic linear electric motors are made up of linear electric motors and control circuit, wherein linear electric motors are by main shaft, housing, coil, big moving unshakable in one's determination, the petty action iron core, parts such as copper sheathing are formed, wherein main shaft is a stainless steel ICr18Ni9Ti material, the petty action iron core is an assembly, constitute by A3 steel loop and magnetic Nd-Fe-B ring, wherein an A3 steel loop cooperates with spindle thread, wherein two magnetic Nd-Fe-B rings and another A3 steel loop are sleeved on the main shaft successively, form a side petty action iron core, and be set in the copper sheathing and be slidingly matched with copper sheathing, at copper sheathing outside suit magnet exciting coil, magnetic guiding loop is sleeved on the copper sheathing outside, with coil end face contact matching, big moving iron core is made up of three ring bodies, wherein two is the big iron core of insert permanent magnet and assembling buffer spring, another sheet is middle steel loop, the big iron core of a slice cooperates with spindle thread, its end face and magnetic conduction anchor ring contact matching, middle steel loop is enclosed within on the main shaft successively, the big iron core of another sheet still cooperates with spindle thread, contact with middle steel loop face, another group petty action iron core is according to magnetic Nd-Fe-B ring, the A3 steel loop, magnetic Nd-Fe-B ring is enclosed within on the main shaft in proper order, last A3 steel loop and spindle thread are connected, rubber buffer is enclosed within on the main shaft and is attached to A3 steel loop end face, copper sheathing is nested with on this group petty action iron core, the another magnetic guiding loop is sleeved on the copper sheathing, housing is formed by three sections, is nested with on coil, and the magnetic guiding loop outer rim is installed in the seam of housing, the end cap center studs with axle sleeve, end cap seam face attaches cushion pad, and main shaft is by axle sleeve, and end cap fastens as one housing by bolt.Control circuit is by RL ₁, RL ₂Two coils, D ₁, D ₂, D ₃, D ₄, meet to diode SCR ₁, SCR ₂Single-phase silicon-controlled major loop and triggering loop of waiting the electrical equipment original paper to constitute formed, by triggering circuit controls and regulating the speed of triggering frequency, to reconcile the speed of linear electric motors motion, SCR in the major loop ₁With SCR ₂Alternately logical, outage commutation work causes coil both positive and negative polarity alternate, forms coil N, S utmost point alternate, produces the power of the linear reciprocating motion of main shaft, realizes the purpose of linear reciprocating motion.

By accompanying drawing concrete structure of the present utility model is elaborated.

Fig. 1 is a structure principle chart of the present utility model.

Fig. 2 is big moving core construction figure of the present utility model.

Fig. 3 is main loop circuit figure of the present utility model.

Fig. 4 is triggering loop circuit figure of the present utility model.

Fig. 1 is embodiment of the present utility model.

With reference to Fig. 1,2 direct current permanent magnetic linear electric motors, form by linear electric motors and control circuit, wherein linear electric motors are by main shaft 1, housing 4, coil 3, big by moving unshakable in one's determination 6, petty action iron core 8, copper sheathing 10 parts such as grade are formed, wherein main shaft 1 is the Stainless Steel material, petty action unshakable in one's determination 8 is an assembly, by A3 steel loop and main shaft 1 threaded engagement, in addition two magnetic Nd-Fe-B rings and another A3 steel loop are enclosed within on the main shaft 1 successively, form a side petty action iron core 8, and be set in the copper sheathing 10 and be slidingly matched with copper sheathing 10, at copper sheathing 10 outside suit magnet exciting coils 3, magnetic guiding loop 9 is sleeved on copper sheathing 10 outsides, with coil 3 end face face contact matching, big moving unshakable in one's determination 6 are made up of three ring bodies, wherein two is the big iron core of insert permanent magnet 11 and assembling buffer spring 13, another sheet is middle steel loop 12, big iron core of a slice and main shaft 1 threaded engagement, 9 contact matching of its end face and magnetic guiding loop, middle steel loop 12 is enclosed within on the main shaft 1 successively, the big iron core of another sheet still with main shaft 1 threaded engagement, contact with middle steel loop face, another group petty action iron core 8 is according to magnetic Nd-Fe-B ring, A3 steel loop, magnetic Nd-Fe-B ring are enclosed within on the main shaft in proper order, and the A3 steel loop in end is connected with main shaft 1 threaded engagement, rubber buffer 14 is enclosed within on the main shaft 1 and is attached to A3 steel loop end face, copper sheathing 10 is placed on this group petty action iron core 8, and another magnetic guiding loop 9 is sleeved on the copper sheathing 10, and coil 3 is along being enclosed within on the copper sheathing 10, housing 4 is formed by three sections, be nested with on coil 3, magnetic guiding loop 9 outer rims are installed in the seam of housing 10, and end cap 2 centers stud with axle sleeve 15, end cap 2 fastens as one housing 4 by bolt 17, and base 16 is installed on housing 4 bottoms.

Control circuit is by RL ₁, RL ₂Two coils 3 are with D ₁, D ₂, D ₃, D ₄Commutation diode, SCR ₁, SCR ₂The single-phase silicon-controlled electrical equipment original paper that waits constitutes main loop circuit and circuits for triggering composition, regulates the speed that triggers frequency when regulating the potentiometer W in the circuits for triggering, that is has controlled SCR ₁, SCR ₂The speed of switching electricity time reaches the speed that the control linear electric motors move.

The utility model compact conformation, volume is little, has energy-conservation, of many uses, cheap spy Point can directly apply among the plant equipment that needs linear reciprocating motion.

Claims

1, a kind of direct current permanent magnetic linear electric motors, form by linear electric motors and control circuit, wherein linear electric motors are by main shaft, housing, coil, big moving unshakable in one's determination, the petty action iron core, parts such as copper sheathing are formed, it is characterized in that: main shaft is a stainless steel ICr18Ni9Ti material, the petty action iron core is an assembly, constitute by A3 steel loop and magnetic Nd-Fe-B ring, wherein an A3 steel loop cooperates with spindle thread, wherein two magnetic Nd-Fe-B rings and another A3 steel loop are sleeved on the main shaft successively, form a side petty action iron core, and be set in the copper sheathing and be slidingly matched with copper sheathing, at copper sheathing outside suit magnet exciting coil, magnetic guiding loop is sleeved on the copper sheathing outside, with coil end face contact matching, big moving iron core is made up of three ring bodies, wherein two is the big iron core of insert permanent magnet and assembling buffer spring, another sheet is middle steel loop, the big iron core of a slice cooperates with spindle thread, its end face and magnetic conduction anchor ring contact matching, middle steel loop is enclosed within on the main shaft successively, the big iron core of another sheet still cooperates with spindle thread, contact with middle steel loop face, another group petty action iron core is according to magnetic Nd-Fe-B ring, the A3 steel loop, magnetic Nd-Fe-B ring is enclosed within on the main shaft in proper order, last A3 steel loop and spindle thread are connected, rubber buffer is enclosed within on the main shaft and is attached to A3 steel loop end face, copper sheathing is nested with on this group petty action iron core, and the another magnetic guiding loop is sleeved on the copper sheathing, and housing is formed by three sections, be nested with on coil, the magnetic guiding loop outer rim is installed in the seam of housing, and the end cap center studs with axle sleeve, and end cap seam face attaches cushion pad, main shaft is by axle sleeve, and end cap fastens as one housing by bolt.