CN219370454U - Pit drainage alarm device for installation of heating furnace outlet lifting motor - Google Patents

Abstract

The utility model discloses a pit drainage alarm device for installing a heating furnace outlet lifting motor, which relates to the field of metal smelting equipment and comprises a shell, a micro switch, an on-off control mechanism and a floating ball; the shell consists of a top cover and a shell body; the micro switch is arranged in the shell, and a terminal on the micro switch is electrically connected with the controller through a wire; the on-off control mechanism comprises a top pressing plate, the top surface of the top pressing plate corresponds to the contact of the micro switch, guide slide bars are arranged on two sides of the top pressing plate, the top pressing plate is in sliding connection with the guide slide bars, nuts are arranged at the upper ends of the guide slide bars, the lower ends of the guide slide bars are fixed with the bottom of the shell, springs are sleeved on the guide slide bars, the upper ends of the springs are propped against the top pressing plate, and the lower ends of the springs are propped against the bottom of the shell; the floating ball is of a cavity structure, the top surface of the floating ball is connected with a flexible rope, and the upper end of the flexible rope penetrates through a reserved first wire passing hole at the bottom of the shell body and then is connected with the top pressing plate. The utility model has reliable and stable structure and low manufacturing cost, and can effectively ensure the positive operation of the motor in the pit.

Description

Pit drainage alarm device for installation of heating furnace outlet lifting motor

Technical Field

The utility model relates to the field of metal smelting equipment, in particular to a pit drainage alarm device for installation of a heating furnace outlet lifting motor.

Background

The steel rolling heating furnace tapping lifting motor is low in installation position due to process and equipment, and the installation position is usually located in a pit. The furnace outlet roller way is arranged above the pit, and after the water pipe for cooling the roller way bearing package breaks, cooling water in the water pipe easily flows into the pit. In order to avoid water logging damage to a motor in a pit, at present, a magnetic floating ball level meter is commonly used for monitoring and alarming the water level in the pit, however, due to complex production environment of a steel rolling workshop, when the applied magnetic floating ball level meter is adhered by dirt, normal water level alarming cannot be completed, and the main reason is that after a measuring guide rod of the magnetic floating ball level meter is polluted, a floating ball cannot slide along the guide rod normally; when the magnetic floating ball liquid level meter has problems, the magnetic floating ball liquid level meter can only be replaced with a new one, and the motor is extremely easy to flood and damage while the production cost is increased, so that the normal production is influenced.

Disclosure of Invention

Based on the problems, the utility model aims to provide a pit drainage alarm device for installing a lifting motor for a heating furnace outlet, which adopts the following technical scheme:

the utility model provides a pit drainage alarm device for installing a heating furnace outlet lifting motor, which comprises a shell, a micro switch, an on-off control mechanism and a floating ball, wherein the micro switch is arranged on the shell; the shell is of a cavity structure and consists of a top cover and a shell body, and the top cover is provided with a wire outlet pipe; the micro switch is arranged in the shell, and a terminal on the micro switch is electrically connected with the controller through a wire; the on-off control mechanism is arranged in the shell and comprises a top pressing plate, the top surface of the top pressing plate corresponds to the contact of the micro switch, guide slide bars are arranged on two sides of the top pressing plate, the top pressing plate is in sliding connection with the guide slide bars, nuts are arranged at the upper ends of the guide slide bars, the lower ends of the guide slide bars are fixed with the bottom of the shell, springs are sleeved on the guide slide bars, the upper ends of the springs are propped against the top pressing plate, and the lower ends of the springs are propped against the bottom of the shell; the floating ball is of a cavity structure, the top surface of the floating ball is connected with a flexible rope, and the upper end of the flexible rope penetrates through a reserved first wire passing hole in the bottom of the shell body and then is connected with the top pressing plate.

Preferably, the bottom surface of the floating ball is in a flat bottom form, four thin supporting rods are arranged on the bottom surface of the floating ball, and the lower ends of the thin supporting rods are in tip shapes.

Preferably, the bottom both sides of shell body all are provided with the ear seat, the ear seat passes through the bolt assembly to be fixed on the base, the base passes through expansion bolts to be fixed on the pit lateral wall.

Preferably, the bottom surface of the top pressing plate and the top surface of the floating ball are both provided with earrings, and the earrings are connected with the end parts of the flexible ropes.

Preferably, the outside of first line hole is provided with dust keeper, dust keeper includes the stand pipe, the upper end of stand pipe with the bottom of shell body is connected, the lower extreme of stand pipe is connected with the top board, the below of top board is provided with the holding down plate, the top board with be provided with the rubber pad between the holding down plate, the rubber pad middle part is provided with the second line hole, be provided with a plurality of openings on the inner wall of second line hole.

Compared with the prior art, the utility model has the beneficial technical effects that:

the utility model has reliable and stable structure and low manufacturing cost, and can effectively ensure the normal operation of the motor in the pit.

Drawings

The utility model is further described with reference to the following description of the drawings.

FIG. 1 is a schematic diagram of a mounting structure of a pit drainage alarm device for mounting a heating furnace outlet lifting motor;

FIG. 2 is a schematic view of the internal components of the housing according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a floating ball according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a dust-proof device according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a rubber pad according to an embodiment of the present utility model.

Reference numerals illustrate: 1. a housing; 101. a top cover; 102. a shell body; 103. a wire outlet pipe; 104. an ear seat; 2. a micro-switch; 3. an on-off control mechanism; 301. a top pressing plate; 302. a slide guiding rod; 303. a nut; 304. a spring; 4. a floating ball; 401. a thin strut; 5. a flexible rope; 6. a first via hole; 7. a base; 8. ear rings; 9. a dust-proof device; 901. a guide tube; 902. an upper press plate; 903. a lower pressing plate; 904. a rubber pad; 905. a second via hole; 906. a notch; 10. pit.

Detailed Description

As shown in fig. 1 and 2, this embodiment discloses a pit drainage alarm device for installing a lifting motor for a heating furnace outlet, which comprises a shell 1, a micro switch 2, an on-off control mechanism 3 and a floating ball 4.

The shell 1 is of a cavity structure, the shell 1 is composed of a top cover 101 and a shell 102, the top cover 101 is fixed on the shell 102 through a bolt assembly, an outgoing line pipe 103 is welded on the top cover 101, the micro switch 2 is arranged in the shell 102, terminals on the micro switch 2 are electrically connected with a controller through wires, and connecting wires penetrate through the outgoing line pipe 103.

The on-off control mechanism 3 is arranged in the shell 102, the on-off control mechanism 3 comprises a top pressing plate 301, the top surface of the top pressing plate 301 corresponds to the contact of the micro switch 2, guide slide bars 302 are arranged on two sides of the top pressing plate 301, the top pressing plate 301 is in sliding connection with the guide slide bars 302, nuts 303 are arranged at the upper ends of the guide slide bars 302, the lower ends of the guide slide bars are fixed with the bottom of the shell 102, springs 304 are sleeved on the guide slide bars 302, the upper ends of the springs 304 are propped against the top pressing plate 301, and the lower ends of the springs 304 are propped against the bottom of the shell 102.

As shown in fig. 3, the floating ball 4 is of a hollow structure, which is made of stainless steel, the top surface of the floating ball 4 is connected with a flexible rope 5, and the upper end of the flexible rope 5 penetrates through a first reserved wire passing hole 6 at the bottom of the shell 102 and then is connected with the top pressing plate 301.

The working principle of the utility model is as follows: the floating ball 4 is a pulling force driving source of the flexible rope 5, when water is not in the pit 10, the floating ball 4 pulls the top pressing plate 301 to slide down along the guide slide rod 302 through the flexible rope 5, so that the top pressing plate 301 is separated from a contact of the micro switch 2, and at the moment, the drainage pump stops working. When water exists in the pit 10, the floating ball 4 rises under the action of water buoyancy, the flexible rope 5 is positioned on the loosening turntable, the pressing plate 301 rises under the action of the spring 304 and presses the contact of the micro switch 2, and at the moment, the drainage pump works to drain accumulated water in the pit 10.

Further, in this embodiment, the bottom surface of the floating ball 4 is designed to be a flat bottom, and four thin struts 401 are provided on the bottom surface of the floating ball 4, and the lower ends of the thin struts 401 are pointed. The contact surface between the floating ball 4 and the pit bottom is reduced by the thin supporting rod 401, so that the phenomenon that the floating ball 4 is adhered to the pit bottom and cannot rise in time due to the adhesion of pollutants is avoided.

Further, in this embodiment, the ear seats 104 are welded on both sides of the bottom of the casing 102, the ear seats 104 are fixed on the base 7 by bolt assemblies, and the base 7 is fixed on the side wall of the pit 10 by expansion bolts.

Further, in this embodiment, the bottom surface of the top pressing plate 301 and the top surface of the floating ball 4 are both provided with an ear ring 8, and the ear ring 8 is connected with the end of the flexible rope 5.

Further, in the present embodiment, as shown in fig. 4 and 5, the outside of the first via hole 6 is provided with a dust-proof device 9 to better prevent dust from entering into the housing 1. Specifically, the dust keeper 9 includes a guide tube 901, the upper end of the guide tube 901 is connected with the bottom of the shell 102, the lower end of the guide tube 901 is connected with an upper pressing plate 902, a lower pressing plate 903 is arranged below the upper pressing plate 902, the upper pressing plate 902 and the lower pressing plate 903 are fixed together through a bolt assembly to be used for clamping a middle rubber pad 904, a second wire passing hole 905 is arranged in the middle of the rubber pad 904, and a plurality of openings 906 are formed in the inner wall of the second wire passing hole 905. The notch 906 is normally closed and may be dust-proof. Because the rubber pad 904 itself has elasticity, when the flexible cord 5 slides in the second wire passing hole 905, the notch 906 can be opened, preventing the flexible cord 5 from being stuck in the second wire passing hole 905.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims (5)

1. The utility model provides a heating furnace lifting motor installation pit drainage alarm device that goes out way which characterized in that includes:

the shell (1), the shell (1) is of a cavity structure, the shell (1) is composed of a top cover (101) and a shell body (102), and a wire outlet pipe (103) is arranged on the top cover (101);

the micro switch (2) is arranged in the shell (102), and a terminal on the micro switch (2) is electrically connected with the controller through a wire;

the on-off control mechanism (3), the on-off control mechanism (3) is arranged in the shell body (102), the on-off control mechanism (3) comprises a top pressing plate (301), the top surface of the top pressing plate (301) corresponds to the contact of the micro switch (2), guide sliding rods (302) are arranged on two sides of the top pressing plate (301), the top pressing plate (301) is in sliding connection with the guide sliding rods (302), nuts (303) are arranged at the upper ends of the guide sliding rods (302), the lower ends of the guide sliding rods are fixed with the bottom of the shell body (102), springs (304) are sleeved on the guide sliding rods (302), the upper ends of the springs (304) are propped against the top pressing plate (301), and the lower ends of the springs are propped against the bottom of the shell body (102);

the floating ball (4), the floating ball (4) is of a cavity structure, the top surface of the floating ball (4) is connected with a flexible rope (5), and the upper end of the flexible rope (5) penetrates through a reserved first wire passing hole (6) at the bottom of the shell body (102) and then is connected with the top pressing plate (301).

2. The heating furnace exit lifting motor installation pit drainage alarm device according to claim 1, wherein: the bottom surface of the floating ball (4) is in a flat bottom form, four thin supporting rods (401) are arranged on the bottom surface of the floating ball (4), and the lower ends of the thin supporting rods (401) are in tip shapes.

3. The heating furnace exit lifting motor installation pit drainage alarm device according to claim 1, wherein: ear seats (104) are arranged on two sides of the bottom of the shell body (102), the ear seats (104) are fixed on the base (7) through bolt assemblies, and the base (7) is fixed on the side wall of the pit through expansion bolts.

4. The heating furnace exit lifting motor installation pit drainage alarm device according to claim 1, wherein: the bottom surface of top board (301) and the top surface of floater (4) all are provided with earrings (8), earrings (8) with the end connection of flexible rope (5).

5. The heating furnace exit lifting motor installation pit drainage alarm device according to claim 1, wherein: the outside of first wire hole (6) is provided with dust keeper (9), dust keeper (9) are including stand pipe (901), the upper end of stand pipe (901) with the bottom of shell (102) is connected, the lower extreme of stand pipe (901) is connected with top board (902), the below of top board (902) is provided with holding down plate (903), top board (902) with be provided with rubber pad (904) between holding down plate (903), rubber pad (904) middle part is provided with second wire hole (905), be provided with a plurality of opening (906) on the inner wall of second wire hole (905).