CN87204205U

CN87204205U - Electromagnetic direct inserting vibrating spear

Info

Publication number: CN87204205U
Application number: CN 87204205
Authority: CN
Inventors: 王海清
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-05-11
Filing date: 1987-05-11
Publication date: 1988-02-24

Abstract

The utility model relates to an electromagnetic direct inserting vibrating bar, also a tool used for dense plastic or hard concrete, mainly comprising a bar body and a flexible pipe. The utility model is mainly characterized in that the vibrations of the bar body are generated by that the attraction force of the electromagnetic force of an iron core to armature iron and the recoil force of a spring sheet are both passed to an outer shell through a bracket. The vibration source of the vibrating bar of the utility model is directly mounted in the bar body, with small size, light weight, low cost, long service life, convenient operation and carrying. The actual effect of the dense concrete reaches the level of the existing vibrating bar.

Description

Electromagnetic direct inserting vibrating spear

The direct insertion vibrating head of the electromagnetism that the utility model relates to is a kind of closely knit plasticity, rigid concrete facility of being used for.

Existing concrete closely knit facility have eccentric pillar, planetary, direct insertion three kinds of vibrating heads, wherein eccentric pillar, the long-pending restriction of planetary vibrating head factor receptor, and the conservative coefficient of driving member, connector is little, fragile, vibration source is connected the outside of barred body, and connector is many, and fault is also many, transmission main part spring flexible axle can not reverse, life-span is short, works at most 500 hours, and needs a people to hold motor, one people holds flexible pipe, and it is very inconvenient to operate and carry.Direct insertion vibrating head is that motor directly is contained in the barred body, has saved the spring flexible axle, has reduced connector, operates and carry all more convenient, but involve great expense, and barred body is bigger, can only be used for large-scale coagulation project, and usage range is little.

The purpose of this utility model is exactly that a kind of vibration source of designing at above-mentioned situation directly is contained in vibrating head in the barred body, and cost is low, the life-span is long, and is easy to use.

Detailed content of the present utility model is described below referring to accompanying drawing:

Referring to Fig. 1, the direct insertion vibrating head of electromagnetism of the present utility model mainly is to be made of barred body and flexible pipe (1), it is characterized in that barred body includes shell (7), armature (8), vibrating hammer (16), shell fragment (9), iron core (12) and coil (13), armature (8), vibrating hammer (16) is fixed on the armature bracket (10), armature bracket is fixed on the shell fragment (9) by shell fragment foundary weight (6), shell fragment (9) is contained in the support (11) that links to each other with shell (7), (14) on, conduit (3) can be connected with coil (13) by the circuit that can produce pulse current that is equipped with in the flexible pipe (1) or directly be connected with coil (13).Armature of the present utility model (12) is fixed on the housing (7) by iron core fixed mount (19), as shown in Figure 2, and iron core (12) is a rectangular strip, and several coils (13) are distributed in the iron core (12), makes iron core (12) can produce enough electromagnetic attractions and attracts armature (8).Angle of armature of the present utility model (8) and iron core (12) inclination, and the right-hand member of armature (8) than its left end away from iron core (12), simultaneously, the shell fragment length of shell fragment foundary weight (6) right-hand member is greater than the shell fragment length of shell fragment foundary weight (6) left end, the Oscillation Amplitude of barred body head is greater than its afterbody like this, can not only be effectively closely knit concrete, and operating personnel's feel is comfortable, shell fragment (9) has an arc bend at support (16) end, play the length compensation effect when shell fragment is out of shape, also limiting armature (8) simultaneously can not direct collision with iron core (12).In the utility model, it is the silicon controlled rectifier clipping circuit that the circuit that can produce pulse current is housed in the flexible pipe (1), and as shown in Figure 3, the current waveform figure of this circuit output as shown in Figure 4.

During use, barred body is inserted in the concrete, plug in.Better for the vibrating effect that makes barred body, in the flexible pipe (1) circuit that can produce pulse current can be housed, silicon controlled rectifier clipping circuit as shown in Figure 3, through behind this circuit, the output pulse current that the certain hour interval is arranged as shown in Figure 4.Because strip armature (8) is fixed on the shell fragment (9), the tension force of shell fragment makes iron core (12) and armature (8) keep certain interval.Under the effect of pulsating current, armature (8) overcomes the elastic force of shell fragment (9) by iron core (12) adhesive, armature bracket (10) and vibrating hammer also move to iron core (12) direction simultaneously, when electric current is zero, shell fragment (9) rebounds armature (8) and armature bracket (10) and vibrating hammer (16) together and goes back, owing between each pulse of electric current certain time interval is arranged all, electric current is to be enough to make shell fragment (9) bounce-back to be gone back the zero time.The electromagnetic force of iron core all passes on the shell (7) by support (11), (14) the attraction of armature and the vibration that bounce produced of shell fragment, and next inhales a bullet in the pulse current effect like this.Whole barred body has just produced strong vibration, and the Oscillation Amplitude of barred body head is greater than its afterbody, thus closely knit effectively concrete.

The vibration source of vibrating head of the present utility model directly is contained in the barred body and by the electromagnetic force effect, saved mechanical power attenuation, saves energy is about 60%, reduces the about 60%-80% of cost, improves 1-2 times application life, weight is heavy 1/4-1/5 times of existing vibrating head, and change the two wires electricity into by three-phase electricity, and be convenient to install, easy and simple to handle, easy to use and carry, the effect of actual dense concrete reaches the level of existing vibrating head.

Description of drawings:

Fig. 1 represents the structural representation of electric and magnetic oscillation rod.(1) flexible pipe wherein; (2) switch; (3) lead; (4) hose coupling; (5), (15) shell fragment set bolt; (6) shell fragment foundary weight; (7) shell; (8) armature; (9) shell fragment; (10) armature bracket; (11), (14) support; (12) iron core; (13) coil; (16) vibrating hammer; (17) vibrating hammer set bolt; (18) top blind nut; (20) controllable silicon clipping circuit.

The A-A section of Fig. 2 presentation graphs 1.(6) shell fragment foundary weight wherein; (7) shell; (8) armature; (9) shell fragment; (10) armature bracket; (12) iron core; (13) coil; (19) iron core fixed mount.

Fig. 3 represents circuit diagram of the present utility model.(2) switch wherein; (13) coil; (20) controllable silicon clipping circuit.

The pulse current waveform figure of Fig. 4 indication circuit output.

Embodiment:

According to the utility model embodiment shown in the drawings, wherein shell fragment is with 3.5 millimeters thick spring steel, machine-shaping after high-temperature heat treatment, shell with the 45# seamless steel pipe through Carburization Treatment, coil with 502 high-intensity resin gluings in iron core, barred body diameter phi 50, power 400W, weight 8kg, the average 8mm of Oscillation Amplitude, vibration frequency 6000 times/minute.

Claims

1, the direct insertion vibrating head of electromagnetism, mainly be to constitute by barred body and flexible pipe (1), the barred body that is characterised in that of the present utility model includes shell (7), armature (8), vibrating hammer (16), shell fragment (9), iron core (12) and coil (13), armature (8), vibrating hammer (16) is fixed on the armature bracket (10), armature bracket is fixed on the shell fragment (9) by shell fragment foundary weight (6), shell fragment (9) is contained in the support (11) that links to each other with shell (7), (14) on, lead (3) can be connected with coil (13) by the circuit that can produce pulse current that is equipped with in the flexible pipe (1) or directly be connected with coil (13).

2, according to the direct insertion vibrating head of the described electromagnetism of claim 1, it is characterized in that iron core (12) is fixed on the housing (7) by iron core fixed mount (19), and iron core (12) is rectangular strip, several coils (13) are distributed in the iron core (12).

3, according to the direct insertion vibrating head of the described electromagnetism of claim 2, it is characterized in that armature (8) and iron core (12) angle that tilts, and the right-hand member of armature (8) than its left end away from iron core (12).

4,, it is characterized in that the shell fragment length of the shell fragment length of shell fragment foundary weight (6) right-hand member, and shell fragment (9) there is an arc bend at support (14) end greater than shell fragment foundary weight (6) left end according to claim 1 or the direct insertion vibrating head of 2 or 3 described electromagnetism.

5, according to the direct insertion vibrating head of the described electromagnetism of claim 1, the circuit that it is characterized in that producing pulse current is the silicon controlled rectifier clipping circuit.