Safety sensing device for heat treatment cooling water tank

Abstract

The utility model discloses a safety sensing device for a heat treatment cooling pool. The safety sensing device cooperatively controls lifting of a lifting guardrail and walking of a walking trolley through a plurality of groups of sensors. When the first group of pressure sensors senses the first pressure, the lifting guardrail begins to descend gently, and the walking trolley moves forwards at a normal constant speed; when the first group of pressure sensors sense that the lifting guardrail starts to descend in an accelerated manner under the pressure for the second time, the Hall sensor on the front wheel frame senses a signal, the walking trolley walks through the lifting guardrail area in an accelerated manner, and after passing, when the Hall sensor senses the signal for the fourth time, the walking trolley slows down to the normal speed, and the lifting guardrail ascends quickly; at the moment, the walking trolley already passes through the lifting guardrail area, reverse entering of the walking trolley is controlled through the same step, therefore, interference between the lifting guardrail and the walking trolley is avoided, control over the guardrail lifting speed and the trolley walking speed is achieved through four sets of sensors, the efficiency of the guardrail lifting speed and the trolley walking speed is guaranteed, and the neutral period of the lifting guardrail is shortened; and the safety degree of the cooling water tank is effectively improved.

Description

Technical Field

[0001] This utility model relates to a safety protection device for cooling water tanks, and more particularly to a safety sensing device for heat treatment cooling water tanks. Background Technology

[0002] Heat treatment of metal parts includes at least two processes: heating and cooling. The properties of metal parts are changed by heating and cooling. Cooling is an indispensable step in the heat treatment process. Currently, metal parts are usually immersed in a cooling pool and cooled by water.

[0003] Since our company's metal parts are mining crushing machinery, such as moving cones, they are characterized by their large size and weight. For convenient transportation, they are generally transported by trolley along a track, with a cooling water pool in the middle of the track and a heating box on the side of the track. However, due to the risk of the cooling water pool falling, guardrails are required. The traveling trolley needs to pass through one end of the pool, so a lifting guardrail needs to be installed at that end to avoid interference with the traveling trolley. In order to control the rhythm of the lifting guardrail during the traveling trolley's movement to maximize its protective function and ensure the efficient passage of the traveling trolley, i.e., by using a smooth descent and accelerated ascent to reduce the gap after the lifting guardrail descends, it is urgent to design a sensing device to automatically control the movement of the lifting guardrail based on the movement of the traveling trolley. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a safety sensing device for heat treatment cooling water tanks.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A safety sensing device for a heat treatment cooling water tank includes:

[0007] Cooling water tank, which contains cooling water;

[0008] Hollow tracks, comprising two parallel tracks arranged on both sides of the cooling water pool;

[0009] The traveling trolley has traveling wheels driven by a drive device. The traveling wheels are fastened to the hollow track, and the traveling trolley is controlled by a first controller and moves along the hollow track under the drive of the traveling wheels.

[0010] The lifting guardrail is installed at one end of the cooling water pool and its lifting is controlled by a second controller.

[0011] The sensing device includes two sets of pressure sensors and two sets of Hall sensors. The two sets of pressure sensors are symmetrically arranged about the lifting guardrail at the hollow track and are connected to the second controller. The Hall sensors are arranged on the wheel frame of each walking wheel, and two sets of magnets for generating sensing signals by the Hall sensors are symmetrically arranged about the lifting guardrail in the hollow track. The two sets of magnets are located between the two sets of pressure sensors.

[0012] Preferably, the hollow track is a downward-opening groove-shaped structure with a notch on the side. The pressure sensor's wiring is arranged inside the notch and passes through the notch to connect to the second controller.

[0013] Preferably, the top of the hollow track has a through hole, and the pressure sensor is fixed inside the opening of the hollow track with its top end protruding from the through hole.

[0014] Preferably, it also includes a heat treatment chamber, which is located on the left side of the hollow track, has an electric heating device inside, and has a lifting door that can be lifted and opened at its right end.

[0015] Preferably, the traveling trolley includes a traveling carriage and a forklift mounted on the traveling carriage. The traveling wheels of the traveling carriage are driven by a drive motor, which is powered by the forklift's own engine.

[0016] Preferably, a fixed guardrail is also included, which is located on the right side of the hollow track.

[0017] Compared with the prior art, the advantages of this utility model are as follows: In this application, when the first set of pressure sensors senses the first pressure, the lifting guardrail begins to descend smoothly, and the traveling trolley moves forward at a normal speed; when the first set of pressure sensors senses the second pressure, the lifting guardrail begins to descend rapidly, the Hall sensor on the front wheel frame senses the signal, and the traveling trolley accelerates to pass through the lifting guardrail area. After passing through, when the fourth Hall sensor senses the signal, the traveling trolley decelerates to a normal speed and the lifting guardrail rises rapidly. At this time, the traveling trolley has already passed the lifting guardrail area, and the traveling trolley reverses to enter using the same control steps. This avoids interference between the lifting guardrail and the traveling trolley, and the control of the guardrail lifting speed and the trolley traveling speed is achieved through four sets of sensors, ensuring the efficiency of both, reducing the downtime of the lifting guardrail, and effectively improving the safety of the cooling water pool. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a perspective view of the present application;

[0020] Figure 2 This is a top view of this application;

[0021] Figure 3 A 3D view of the installed lifting guardrail;

[0022] Figure 4 This is a 3D view of the lifting guardrail;

[0023] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 6 A 3D view of the wheels;

[0025] In the diagram: 01, pressure sensor; 02, magnet; 10, cooling water tank; 20, heat treatment chamber; 201, lifting door; 30, hollow track; 40, lifting guardrail; 401, lifting drive device; 50, fixed guardrail; 60, traveling trolley; 601, wheel frame; 602, drive motor; 603, Hall sensor; 604, traveling wheel; 70, installation space. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0027] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example

[0028] This embodiment mainly describes the title of the safety sensing device for the heat treatment cooling water tank, as follows:

[0029] Safety sensing devices for heat treatment cooling water tanks, such as Figure 1-6 As shown, it includes:

[0030] Cooling water tank 10, which is equipped with cooling water;

[0031] Hollow tracks 30, comprising two parallel tracks arranged on both sides of the cooling water pool 10;

[0032] The traveling trolley 60 has traveling wheels 604 driven by a drive device. The traveling wheels 604 are fastened to the hollow track 30 and the traveling trolley 60 is controlled by a first controller and moves along the hollow track 30 under the drive of the traveling wheels 604.

[0033] The lifting guardrail 40 is installed at one end of the cooling water pool 10 and its lifting is controlled by a second controller.

[0034] The sensing device includes two sets of pressure sensors 01 and two sets of Hall sensors 603. The two sets of pressure sensors 01 are symmetrically arranged about the lifting guardrail 40 at the hollow track 30 and are connected to the second controller. The Hall sensors 603 are arranged on the wheel frame 601 of each walking wheel 604. Two sets of magnets 02 are symmetrically arranged about the lifting guardrail 40 in the hollow track 30 for generating sensing signals by the Hall sensors 603. The two sets of magnets 02 are located between the two sets of pressure sensors 01. Taking the movement from the inside out as an example, when the first pressure sensor 01 senses the first pressure, the lifting guardrail 40 begins to descend slowly, and the traveling trolley 60 moves forward at a normal speed. When the first pressure sensor 01 senses the second pressure, the lifting guardrail 40 begins to descend rapidly. The Hall sensor 603 on the front wheel frame 601 senses the signal, and the traveling trolley 60 accelerates through the area of ​​the lifting guardrail 40. After passing through, when the Hall sensor 603 senses the signal for the fourth time, the traveling trolley 60 decelerates to a normal speed, and the lifting guardrail 40 rises rapidly. At this time, the traveling trolley 60 has already passed the area of ​​the lifting guardrail 40. The traveling trolley 60 then reverses and enters using the same control steps. This avoids interference between the lifting guardrail 40 and the traveling trolley 60, and the control of the lifting speed of the guardrail and the traveling speed of the trolley 60 are achieved through four sets of sensors, ensuring the efficiency of both and reducing the downtime of the lifting guardrail 40, thus effectively improving the safety of the cooling water pool 10.

[0035] Preferably, the hollow track 30 is a downward-opening groove structure with a notch on the side. The circuit of the pressure sensor 01 is arranged inside the opening and passes through the notch to connect to the second controller.

[0036] Preferably, the top of the hollow track 30 is provided with a through hole, and the pressure sensor 01 is fixed in the opening of the hollow track 30 with its top end protruding from the through hole. When the traveling wheel 604 passes by, it presses down on the pressure sensor 01, and the pressure sensor 01 obtains a pressure signal.

[0037] Preferably, the system also includes a heat treatment chamber 20, which is located on the left side of the hollow track 30. The chamber contains an electric heating device and has a lift door 201 that opens and closes at its right end. The heat treatment chamber 20 not only performs heat treatment on the workpiece but also provides protection on the left side, eliminating the need for a guardrail on the left side.

[0038] Preferably, the traveling trolley 60 includes a traveling carriage and a forklift mounted on the traveling carriage. The traveling wheels 604 of the traveling carriage are driven by a drive motor 602, which is powered by the forklift's own engine. The forklift's forks are used to pick up and move the workpiece to be heated, and it can horizontally deliver the workpiece into the heat treatment chamber 20, or immerse the workpiece in the cooling water tank 10 by lifting. In addition, to increase the forklift's translational range, it can be mounted on the traveling trolley 60 via slide rails, sliders, and cylinders.

[0039] Preferably, a fixed guardrail 50 is also included, which is located on the right side of the hollow track 30. The fixed guardrail 50 is used to provide protection on the right side. In addition, the inner end of the cooling water pool 10 is a wall, so no guardrail is required.

[0040] It should be noted that an installation space 70 is provided at the end of the cooling water pool 10. A lifting drive device 401 is provided in the installation space 70. The output end of the lifting drive device 401 is connected to the lifting guardrail 40. The lifting drive device 401 is a drive cylinder or a screw mechanism. In order to increase the stability of the lifting guardrail 40, a set of slide rails and sliders can be provided, and the lifting guardrail 40 is connected to the sliders.

[0041] The title provided above provides a detailed description of the present utility model. Specific examples have been used to illustrate the principles and implementation methods of the present utility model. The description of the above embodiments is only for the purpose of helping to understand the present utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present utility model without departing from the principles of the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A safety sensing device for a heat treatment cooling water tank, characterized in that, include: Cooling water tank, which contains cooling water; Hollow tracks, comprising two parallel tracks arranged on both sides of the cooling water pool; The traveling trolley has traveling wheels driven by a drive device. The traveling wheels are fastened to the hollow track, and the traveling trolley is controlled by a first controller and moves along the hollow track under the drive of the traveling wheels. The lifting guardrail is installed at one end of the cooling water pool and its lifting is controlled by a second controller. The sensing device includes two sets of pressure sensors and two sets of Hall sensors. The two sets of pressure sensors are symmetrically arranged about the lifting guardrail at the hollow track and are connected to the second controller. The Hall sensors are arranged on the wheel frame of each walking wheel, and two sets of magnets for generating sensing signals by the Hall sensors are symmetrically arranged about the lifting guardrail in the hollow track. The two sets of magnets are located between the two sets of pressure sensors.

2. The safety sensing device for heat treatment cooling water tank according to claim 1, characterized in that: The hollow track is a trough-shaped structure with an opening facing downwards. The side of the trough-shaped structure has a notch. The circuit of the pressure sensor is arranged inside the opening and passes out through the notch to connect to the second controller.

3. The safety sensing device for heat treatment cooling water tank according to claim 1, characterized in that: The top of the hollow track has a through hole, and the pressure sensor is fixed inside the opening of the hollow track with its top end protruding from the through hole.

4. The safety sensing device for a heat treatment cooling water tank according to claim 1, characterized in that: It also includes a heat treatment chamber, which is located on the left side of the hollow track, and has an electric heating device inside and a lifting door that can be lifted and opened at its right end.

5. The safety sensing device for a heat treatment cooling water tank according to claim 1, characterized in that: The traveling trolley includes a traveling trolley and a forklift mounted on the traveling trolley. The traveling wheels of the traveling trolley are driven by a drive motor, which is powered by the forklift's own engine.

6. The safety sensing device for a heat treatment cooling water tank according to claim 1, characterized in that: It also includes fixed guardrails, which are installed on the right side of the hollow track.

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