CN215218990U

CN215218990U - Coal mill reversing valve probe

Info

Publication number: CN215218990U
Application number: CN202120448324.7U
Authority: CN
Inventors: 李照扩; 李赞; 高壮; 赵志刚; 赵磊
Original assignee: Hebei Handan Power Generation Co Ltd
Current assignee: Hebei Handan Power Generation Co Ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-12-17
Anticipated expiration: 2031-03-02

Abstract

Including base and fixed pin, its characterized in that: the through-hole has been seted up on the surface of base, and the left side of base is provided with the recess to the internal surface mounting of recess has electromagnetic inductor, electromagnetic inductor's externally surface mounting has the fixed block, and the inboard of fixed block is connected with the surface of base, and electromagnetic inductor's front end installs the probe body, the right-hand member of probe body runs through the centre of fixed bolster and is connected with the left end of switching-over valve body, and the right-hand member of fixed bolster is installed at the left end of switching-over valve body, and the rear end of switching-over valve body is fixed at the front surface of base. This coal pulverizer switching-over valve probe changes coal pulverizer switching-over valve mechanical probe into electromagnetic induction formula probe, through signal of telecommunication control electromagnetic inductor for electromagnetic inductor passes through probe body control switching-over valve body, from making the work of switching-over valve body more accurate, further improves the stability and the reliability of switching-over valve body.

Description

Coal mill reversing valve probe

Technical Field

The utility model relates to a switching-over valve probe technical field specifically is a coal pulverizer switching-over valve probe.

Background

In an automatic program control lubricating system, a reversing valve moves to a control measuring point through a firing pin on a piston rod and touches the attached control measuring point, so that one working cycle is terminated, but the piston rod is abraded after long-term operation, the abraded piston rod causes a pressure release phenomenon, the sensing misjudgment of the firing pin is influenced, a control signal is normal, but no oil injection phenomenon actually occurs, the reversing valve is unstable in work, and the reversing work in an oil way cannot be finished.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coal pulverizer switching-over valve probe to it wears easily to cause the problem that the pressure release influences firing pin response erroneous judgement to propose current coal pulverizer switching-over valve mechanical probe among the above-mentioned background art to solve.

In order to achieve the above object, the utility model provides a following technical scheme: a coal mill reversing valve probe comprises a base and a fixing pin, wherein a through hole is formed in the surface of the base, a groove is formed in the left side of the base, an electromagnetic inductor is installed on the inner surface of the groove, a fixing block is installed on the outer surface of the electromagnetic inductor, the inner side of the fixing block is connected with the outer surface of the base, a probe body is installed at the front end of the electromagnetic inductor, the right end of the probe body penetrates through the middle of a fixing support and is connected with the left end of the reversing valve body, the right end of the fixing support is installed at the left end of the reversing valve body, the rear end of the reversing valve body is fixed on the front surface of the base, one end of the fixing pin penetrates through the middle of an electric wire end and is connected with the other end of the electromagnetic inductor, the lower end of the electric wire end is fixed with the starting end of a power wire, the tail end of the power wire penetrates through the surface of a fixing frame, and one end of the fixing frame is installed on the rear surface of the base, and the front surface mounting of base has last sealed cowling and lower sealed cowling to the lower extreme of going up the sealed cowling is fixed with the fixture block, the draw-in groove has been seted up to the upper end of lower sealed cowling, and the internal surface of draw-in groove is connected with the surface of fixture block, and lower sealed cowling and last sealed cowling are located electromagnetic inductor's the outside.

Preferably, the through holes are distributed on the surface of the base at equal intervals, and the longitudinal section of the base is in a shape of a convex character.

Preferably, the groove is connected with the electromagnetic inductor in a clamping manner, the electromagnetic inductor is in threaded connection with the fixing block, and the fixing block is symmetrically arranged by taking the groove as a center.

Preferably, the probe body and the reversing valve body form a dismounting and mounting structure through a fixed support, and the probe body is respectively in sliding connection with the upper sealing cover and the lower sealing cover.

Preferably, the wire end is connected with the fixing pin in a clamping manner, and the fixing frame and the base form a dismounting and mounting structure.

Preferably, go up the sealed cowling and constitute with the base and dismantle mounting structure, and go up the sealed cowling and pass through the fixture block and be connected for the block with the draw-in groove to go up the sealed cowling and use electromagnetic inductor as the center and set up for the symmetry with lower sealed cowling, lower sealed cowling constitutes with the base simultaneously and dismantles mounting structure.

Compared with the prior art, the beneficial effects of the utility model are that: the probe of the reversing valve of the coal mill,

1. the mechanical probe of the reversing valve of the coal mill is replaced by an electromagnetic induction type probe, and an electromagnetic inductor is controlled through an electric signal, so that the electromagnetic inductor controls the reversing valve body through the probe body, the reversing valve body can work more accurately, and the stability and reliability of the reversing valve body are further improved;

2. the base can be integrally installed and fixed on the coal mill by penetrating the through hole through the bolt, so that the convenience of installation of the reversing valve body is improved, then the end of the electric wire is connected with the electromagnetic inductor through the fixing pin, the normal work of the electromagnetic inductor is facilitated, then the tail end of the power wire is connected to a power supply, and meanwhile, the power wire is fixed through the fixing frame to prevent the coal mill from shaking to cause the falling of the end of the electric wire;

3. through installing sealed cowling and lower sealed cowling in electromagnetic induction ware's the outside, avoid the oil stain that the switching-over valve body took place to leak to fall electromagnetic induction ware to avoid the oil stain to cause electromagnetic induction ware's normal work, guarantee electromagnetic induction ware's stability.

Drawings

FIG. 1 is a schematic overall front sectional view of the present invention;

FIG. 2 is a left side view of the structure of the electromagnetic inductor and the groove of the present invention;

FIG. 3 is a schematic overall front sectional view of the present invention;

fig. 4 is a schematic view of a sectional structure of the electromagnetic inductor of the present invention.

In the figure: 1. a base; 2. a through hole; 3. a groove; 4. an electromagnetic inductor; 5. a fixed block; 6. a probe body; 7. fixing a bracket; 8. a diverter valve body; 9. a fixing pin; 10. an electric wire end; 11. a power line; 12. a fixed mount; 13. an upper sealing cover; 14. a clamping block; 15. a card slot; 16. and a lower sealing cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a coal mill reversing valve probe comprises a base 1, a through hole 2, a groove 3, an electromagnetic inductor 4, a fixed block 5, a probe body 6, a fixed support 7, a reversing valve body 8, a fixed pin 9, an electric wire end 10, a power wire 11, a fixed frame 12, an upper sealing cover 13, a clamping block 14, a clamping groove 15 and a lower sealing cover 16, wherein the through hole 2 is formed in the surface of the base 1, the groove 3 is formed in the left side of the base 1, the electromagnetic inductor 4 is installed on the inner surface of the groove 3, the fixed block 5 is installed on the outer surface of the electromagnetic inductor 4, the inner side of the fixed block 5 is connected with the outer surface of the base 1, the probe body 6 is installed at the front end of the electromagnetic inductor 4, the right end of the probe body 6 penetrates through the middle of the fixed support 7 to be connected with the left end of the reversing valve body 8, the right end of the fixed support 7 is installed at the left end of the reversing valve body 8, and the rear end of the reversing valve body 8 is fixed on the front surface of the base 1, the middle of wire end 10 is passed to the one end of fixed pin 9 and the other end of electromagnetic inductor 4 is connected, and the lower extreme of wire end 10 is fixed with the top of power cord 11, and the end of power cord 11 passes the surface of mount 12, the rear surface at base 1 is installed to the one end of mount 12, and base 1's front surface mounting has last sealed cowling 13 and lower sealed cowling 16, and the lower extreme of going up sealed cowling 13 is fixed with fixture block 14, draw-in groove 15 has been seted up to the upper end of lower sealed cowling 16, and the internal surface of draw-in groove 15 is connected with the surface of fixture block 14, and lower sealed cowling 16 and last sealed cowling 13 are located the outside of electromagnetic inductor 4.

The through holes 2 are distributed on the surface of the base 1 at equal intervals, and the longitudinal section of the base 1 is in a convex shape, so that bolts can pass through the through holes, and the base 1 can be conveniently installed on a coal mill.

Recess 3 is connected for the block with electromagnetic inductor 4, and electromagnetic inductor 4 is threaded connection with fixed block 5 to fixed block 5 uses recess 3 to set up as central symmetry, and in the recess 3 was advanced to the 4 blocks of electromagnetic inductor of being convenient for, carries out the centre gripping to the recess 3 outside through 2 fixed blocks 5, and the electromagnetic inductor 4 monolithic stationary of being convenient for is in recess 3.

The probe body 6 forms a dismounting and mounting structure with the reversing valve body 8 through the fixing support 7, the probe body 6 is in sliding connection with the upper sealing cover 13 and the lower sealing cover 16 respectively, the probe body 6 can be conveniently mounted on the reversing valve body 8 through the fixing support 7, and the probe is simple in integral structure and convenient to mount quickly.

The wire end 10 is connected with the fixing pin 9 in a clamping manner, the fixing frame 12 and the base 1 form a dismounting and mounting structure, and the power wire 11 is prevented from shaking through the fixing frame 12.

Go up sealed cowling 13 and base 1 and constitute and dismantle mounting structure, and go up sealed cowling 13 and be connected for the block through fixture block 14 and draw-in groove 15 to go up sealed cowling 13 and use electromagnetic inductor 4 as the center and seal cowling 16 down for the symmetry setting, seal cowling 16 and base 1 constitute simultaneously and dismantle mounting structure, prevent the work of greasy dirt interference electromagnetic inductor 4 through last sealed cowling 13 and lower sealed cowling 16.

The working principle is as follows: when the probe of the reversing valve of the coal mill is used, firstly, a bolt penetrates through the through hole 2, so that the base 1 is integrally and fixedly installed on the coal mill, then, an oil pipeline is connected to the reversing valve body 8, then, the end 10 of the electric wire is fixed on the electromagnetic inductor 4 through the fixing pin 9, then, the electromagnetic inductor 4 is clamped in the groove 3, then, the fixing block 5 is rotated along the electromagnetic inductor 4, so that the electromagnetic inductor 4 is integrally fixed on the groove 3, and then, the tail end of the power wire 11 is connected to a power supply;

then, when the reversing valve body 8 works, the reversing valve body 8 reverses the moving direction in the oil way, and the electromagnetic inductor 4 is started, so that the electromagnetic inductor 4 controls the probe body 6 to move a device in the reversing valve body 8 to a proper position, the oil way starts to work, the safety and reliability of a gear oil injection system are improved, and equipment damage accidents caused by oil cut on the tooth surface are avoided;

finally, the power cord 11 is fixed on the base 1 through the fixing frame 12 to prevent the coal mill from being damaged when in work, the vibration generated by the wire end 10 causes the wire end to fall off from the electromagnetic inductor 4, thereby ensuring the working stability of the electromagnetic inductor 4, then the stability of the movement between the probe body 6 and the reversing valve body 8 is ensured by the fixed bracket 7, then the upper sealing cover 13 is clamped into the clamping groove 15 in the lower sealing cover 16 through the clamping block 14, so that the electromagnetic inductor 4 is wrapped by the upper sealing cover 13 and the lower sealing cover 16, at the same time, the upper sealing cover 13 and the lower sealing cover 16 do not interfere with the normal operation of the probe body 6, and then, the whole tightness is ensured through the clamping block 14 and the clamping groove 15, the oil leaked from the joint of the reversing valve body 8 and the pipeline is prevented from falling onto the electromagnetic inductor 4, the oil is prevented from interfering the signal transmission between the electromagnetic inductor 4, and the whole practicability is increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a coal pulverizer switching-over valve probe, includes base (1) and fixed pin (9), its characterized in that: the surface of the base (1) is provided with a through hole (2), the left side of the base (1) is provided with a groove (3), the inner surface of the groove (3) is provided with an electromagnetic inductor (4), the outer surface of the electromagnetic inductor (4) is provided with a fixed block (5), the inner side of the fixed block (5) is connected with the outer surface of the base (1), the front end of the electromagnetic inductor (4) is provided with a probe body (6), the right end of the probe body (6) penetrates through the middle of a fixed support (7) to be connected with the left end of a reversing valve body (8), the right end of the fixed support (7) is arranged at the left end of the reversing valve body (8), the rear end of the reversing valve body (8) is fixed on the front surface of the base (1), one end of a fixed pin (9) penetrates through the middle of an electric wire end (10) to be connected with the other end of the electromagnetic inductor (4), and the lower extreme of electric wire end (10) is fixed with the top of power cord (11) to the end of power cord (11) passes the surface of mount (12), the rear surface at base (1) is installed to the one end of mount (12), and the front surface mounting of base (1) has last sealed cowling (13) and lower sealed cowling (16), and the lower extreme of going up sealed cowling (13) is fixed with fixture block (14), draw-in groove (15) have been seted up to the upper end of lower sealed cowling (16), and the internal surface of draw-in groove (15) is connected with the surface of fixture block (14), and lower sealed cowling (16) and last sealed cowling (13) are located the outside of electromagnetic inductor (4).

2. The coal pulverizer reversing valve probe of claim 1, wherein: the through holes (2) are distributed on the surface of the base (1) at equal intervals, and the longitudinal section of the base (1) is in a convex shape.

3. The coal pulverizer reversing valve probe of claim 1, wherein: recess (3) are connected for the block with electromagnetic inductor (4), and electromagnetic inductor (4) are threaded connection with fixed block (5) to fixed block (5) use recess (3) to set up as central symmetry.

4. The coal pulverizer reversing valve probe of claim 1, wherein: the probe body (6) and the reversing valve body (8) form a dismounting and mounting structure through the fixed support (7), and the probe body (6) is respectively in sliding connection with the upper sealing cover (13) and the lower sealing cover (16).

5. The coal pulverizer reversing valve probe of claim 1, wherein: the electric wire end socket (10) is connected with the fixing pin (9) in a clamping mode, and the fixing frame (12) and the base (1) form a dismounting and mounting structure.

6. The coal pulverizer reversing valve probe of claim 1, wherein: go up sealed cowling (13) and base (1) constitution and dismantle mounting structure, and go up sealed cowling (13) and be connected for the block through fixture block (14) and draw-in groove (15) to go up sealed cowling (13) and use electromagnetic inductor (4) as center and lower sealed cowling (16) for the symmetry setting, lower sealed cowling (16) constitute with base (1) simultaneously and dismantle mounting structure.