CN219385204U

CN219385204U - Blast furnace iron notch depth measuring device based on hydraulic rock drill

Info

Publication number: CN219385204U
Application number: CN202320701653.7U
Authority: CN
Inventors: 许昉; 黄庆华; 何国锋; 尹其胜; 王海越
Original assignee: Lianfeng Steel Zhangjiagang Co Ltd
Current assignee: Lianfeng Steel Zhangjiagang Co Ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-07-21
Anticipated expiration: 2033-04-03

Abstract

The utility model relates to the field of iron notch depth measurement, in particular to a blast furnace iron notch depth measurement device based on a hydraulic rock drill, which comprises a flywheel, a one-way contact mechanism and a mechanical counter, wherein the flywheel is coaxial with a wheel shaft and is fixedly connected, a deflector rod is arranged on the flywheel and is used for being in contact with the one-way contact mechanism, the mechanical counter is fixedly connected with the hydraulic rock drill through a connecting base, the mechanical counter comprises a counter rotating rod and a reset button, the one-way contact mechanism is fixedly arranged on the counter rotating rod, a contact rod used for being in contact with the reset button is arranged on a steel rail, and the blast furnace iron notch depth measurement device based on the hydraulic rock drill is moved through the hydraulic rock drill, so that the deflector rod is driven to rotate when the wheel rotates, further the mechanical counter counts, accurate depth values can still be observed when the hydraulic rock drill is reset to a distance of a few centimeters before the hydraulic rock drill is reset, and the device adopts a pure mechanical structure and can be suitable for a severe environment.

Description

Blast furnace iron notch depth measuring device based on hydraulic rock drill

Technical Field

The utility model relates to the field of iron notch depth measurement, in particular to a blast furnace iron notch depth measurement device based on a hydraulic rock drill.

Background

The distance of travel of the hydraulic rock drill corresponds to the tap hole depth (sum of the tap hole area furnace wall and the depth of the mud ladle). The tap hole depth of the blast furnace is mastered and controlled, and a tap hole operator in front of the blast furnace can be guided to determine the mud pumping amount when the tap hole is blocked. The depth of the tap hole has a large influence on the tapping flow rate, and under the condition that the aperture of the tap hole is consistent, the tap hole deviates from the normal tap hole depth range, and the molten iron flow rate is too fast or too slow, so that excessive molten iron or insufficient molten iron is easily caused; can cause molten iron landing accidents or influence the production process. Too shallow a tap hole can cause hearth safety accidents, and too deep a tap hole can cause hearth deactivation. So the accurate data of the depth of the iron notch is grasped, which is not only the requirement of production practice, but also the necessary measure for long-life maintenance of the blast furnace, the poor control can influence the long stability and long smoothness of the furnace condition of the blast furnace, and the economic index can be influenced.

Chinese patent publication No.: CN206814799U discloses: the utility model provides a device of blast furnace tapping machine location, this application is the iron notch degree of depth through the scale and the numerical value of last depth scale and lower depth scale in the depth scale system that movable pointer corresponds, and the degree of accuracy is high, can satisfy the requirement of blast furnace accurate control iron notch degree of depth. Although this application is able to measure the depth of the tap hole, the test results need to be viewed at the instant the tap hole is drilled, but at this point in time the solution will be ejected from the tap hole and too dangerous. But is viewed after the drill pipe has been reset, the value will have disappeared.

Chinese patent publication No.: CN214361486U discloses: the utility model provides an automatic measuring device of blast furnace iron notch degree of depth, this application is installed on the driving sprocket 4 of travelling car through calibrated scale 11, PLC installs hydraulic pressure station 1 in the stokehold, when beginning to measure, liquid crystal display 4 shows as-400 mm (the initial interval of drilling rod front end and iron notch porthole 9), travelling car 2 removes the in-process, hydraulic motor 3 synchronous rotation, encoder 5 constantly counts, calculates displacement and iron notch degree of depth of travelling car through PLC, and the rethread liquid crystal display 10 shows, counts promptly through the encoder. And count through the encoder, at first, equipment operational environment is abominable, and hydraulic motor can adapt to abominable environment, and the encoder is not going, often can cause the damage of encoder to the numerical value of encoder record is the rotatory number of turns of wheel, and can't carry out the record when the rotatory half turn of wheel, can cause great error.

Therefore, in order to solve the above problems, it is necessary to design a numerical value that can observe the tap hole depth after the drill rod is reset, reduce the recorded digital error, and adapt to a severe environment for a long period of time.

Disclosure of Invention

The utility model aims to provide a blast furnace tap hole depth measuring device based on a hydraulic rock drill.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a blast furnace iron notch depth measuring device based on hydraulic rock drill, including flywheel, one-way contact mechanism and mechanical counter, the flywheel is coaxial and fixed connection with the axletree, is provided with the driving lever on the flywheel, the driving lever is used for contacting with the one-way contact mechanism, and mechanical counter is fixed connection with hydraulic rock drill through the connection base, and mechanical counter includes counter bull stick and reset button, and one-way contact mechanism is fixed mounting on counter bull stick, is provided with the contact lever that is used for contacting with reset button on the rail;

when the steel rail is reset to the initial position, the contact rod is contacted with the reset button, and the mechanical counter is cleared;

when the hydraulic rock drill moves towards the direction of the iron notch, the wheel of the rock drill drives the flywheel to rotate clockwise through the wheel shaft, and the deflector rod pushes the counter rotating rod to rotate through the unidirectional contact mechanism;

when the hydraulic rock drill moves towards the direction away from the iron notch, the wheel of the rock drill drives the flywheel to rotate anticlockwise through the wheel shaft, the deflector rod pushes the one-way contact mechanism, the one-way contact mechanism avoids the deflector rod, and the counter rotating rod is not driven to rotate.

Further, the number of the driving levers is four, and the four driving levers are uniformly arranged on the flywheel along the axis of the flywheel.

Further, the unidirectional contact mechanism comprises a contact rotating rod, a push column, a rotary driving plate and an elastic support, wherein the contact rotating rod is rotatably arranged on the counter rotating rod, the rotary driving plate is fixedly connected with the counter rotating rod, the push column is in contact with the rotary driving plate, and the elastic support is used for supporting one side, far away from the rotary driving plate, of the contact rotating rod;

when the wheel shaft drives the flywheel to rotate clockwise, the deflector rod pushes the rotary driving plate to rotate through the contact rotating rod and the push column, so that the rotary driving plate pushes the counter rotating rod to rotate;

when the wheel shaft drives the flywheel to rotate anticlockwise, the deflector rod pushes the contact rotating rod anticlockwise, so that the deflector rod is separated from the contact rotating rod.

Further, the elastic support comprises a torsion spring and a sleeve, the sleeve is fixedly arranged on the mechanical counter, the sleeve is sleeved on the outer edge of the counter rotating rod, the torsion spring is sleeved on the outer edge of the sleeve, one end of the torsion spring is in contact with the contact rotating rod and used for supporting and positioning the contact rotating rod, and the other end of the torsion spring is fixedly connected with the sleeve.

Further, a spline shaft is arranged at the end part of the wheel shaft, a spline groove which is clamped with the spline shaft is arranged in the center of the flywheel, a cover plate and a nut are arranged on one side, away from the wheel shaft, of the flywheel, the nut penetrates through the cover plate to be in meshed connection with the spline shaft, and a threaded hole for the nut to be meshed is formed in the spline shaft.

Further, one end of the deflector rod is provided with a stud, and the flywheel is provided with a screw hole which is meshed and connected with the stud.

The utility model has the beneficial effects that: this based on hydraulic rock drill blast furnace iron notch degree of depth measuring device removes through hydraulic rock drill for the wheel is rotatory when rotatory, and then makes mechanical counter count, and can still can observe accurate degree of depth numerical value when hydraulic rock drill resets the distance of several centimetres before the completion.

And the device adopts pure mechanical structure, can be applicable to abominable environment, and this simple structure, the cost is lower.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are required to be used in the embodiments of the present utility model will be briefly described below.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of a partial perspective structure of the present utility model;

FIG. 3 is a schematic perspective view of the structure of FIG. 2 from another perspective;

FIG. 4 is an enlarged view of a portion of FIG. 2 at A;

FIG. 5 is a partially exploded perspective view of the present utility model;

FIG. 6 is an exploded perspective view of the flywheel and lever;

in the figure: 1-a rock drill wheel; 2-a steel rail; 3-wheel axle; 3 a-spline shaft; 4-connecting the base; 5-flywheel; 5 a-a deflector rod; 5 b-spline grooves; 6-a one-way contact mechanism; 6 a-contact the rotating rod; 6 b-pushing column; 6 c-rotating the drive plate; 6 d-elastic support; 6d 1-torsion spring; 6d 2-sleeve; 7-a mechanical counter; 7 a-a counter rotating rod; 7 b-reset button; 8-cover plate; 9-nut.

Detailed Description

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced in size and do not represent the actual product dimensions.

Referring to fig. 1 to 6, the blast furnace tap hole depth measuring device based on the hydraulic rock drill comprises a flywheel 5, a unidirectional contact mechanism 6 and a mechanical counter 7, wherein the flywheel 5 is coaxial with a wheel shaft 3 and is fixedly connected, a deflector rod 5a is arranged on the flywheel 5, the radius of the center of the flywheel 5 is 15.9155mm, the deflector rod 5a is used for being in contact with the unidirectional contact mechanism 6, the mechanical counter 7 is fixedly connected with the hydraulic rock drill through a connecting base 4, the mechanical counter 7 comprises a counter rotating rod 7a and a reset button 7b, the unidirectional contact mechanism 6 is fixedly arranged on the counter rotating rod 7a, and a contact rod used for being in contact with the reset button 7b is arranged on a steel rail 2; the mechanical counter 7 uses a digital display, facing the operator. The camera device can be installed at the turning standby position of the tapping machine, and the touch times can be converted into data by using the image recognition system.

When the steel rail 2 is reset to the initial position, the contact rod is contacted with the reset button 7b, and the mechanical counter 7 is cleared;

when the hydraulic rock drill moves towards the direction of the iron notch, the wheel 1 of the rock drill drives the flywheel 5 to rotate clockwise through the wheel shaft 3, the deflector rod 5a pushes the counter rotating rod 7a to rotate through the unidirectional contact mechanism 6, namely, each time the deflector rod 5a contacts with the unidirectional contact mechanism 6 once, the mechanical counter 7 counts once, so that mechanical counting is realized, and the probability of faults is reduced without passing through electrical elements. The device is simple and low in cost;

when the hydraulic rock drill moves towards the direction away from the iron notch, the wheel 1 of the rock drill drives the flywheel 5 to rotate anticlockwise through the wheel shaft 3, the deflector rod 5a pushes the unidirectional contact mechanism 6, the unidirectional contact mechanism 6 avoids the deflector rod 5a, and the counter rotating rod 7a is not driven to rotate, so that the mechanical counter 7 is not driven to count reversely when the hydraulic rock drill moves reversely, the influence on the result is avoided, and the result can be kept until the contact rod contacts with the reset button 7b, so that the worker can watch conveniently. And the contact rod and the reset button 7b are used for enabling the worker to reset continuously by controlling the hydraulic rock drill after the worker finishes watching, so that the numerical value is cleared. The two devices are arranged on the rear wheel of the hydraulic rock drill, and more accurate test values can be achieved through the two groups of data. Of course, it is also possible to use a machine mounted on four rock drill wheels 1, but the front two wheels require the worker to press the reset mechanical counter 7.

The number of the deflector rods 5a is four, and the four deflector rods 5a are uniformly arranged on the flywheel 5 along the axis of the flywheel 5. The number recorded between two adjacent deflector rods 5a is 2mm, and by arranging four deflector rods 5a, compared with arranging one deflector rod 5a, the recorded error is less than 25mm, so that the number is more accurate. The depth of the iron notch is normally 2000mm to 3000mm, so that the counter driving lever only needs to adopt a three-digit counter.

Assume that: the depth of the iron notch is 3000mm, and the flywheel runs for 30 circles. The counter lever is only touched 120 times.

As shown in fig. 2 to 4, the unidirectional contact mechanism 6 comprises a contact rotating rod 6a, a push post 6b, a rotary driving plate 6c and an elastic support 6d, wherein the contact rotating rod 6a is rotatably arranged on a counter rotating rod 7a, the rotary driving plate 6c is fixedly connected with the counter rotating rod 7a, the push post 6b is contacted with the rotary driving plate 6c, and the elastic support 6d is used for supporting one side of the contact rotating rod 6a far away from the rotary driving plate 6 c;

when the wheel shaft 3 drives the flywheel 5 to rotate clockwise, the deflector rod 5a pushes the rotary driving plate 6c to rotate through the contact rotating rod 6a and the push column 6b, so that the rotary driving plate 6c pushes the counter rotating rod 7a to rotate;

when the wheel shaft 3 rotates the flywheel 5 counterclockwise, the lever 5a pushes the contact lever 6a counterclockwise, so that the lever 5a is separated from the contact lever 6a, wherein the elastic support 6d is compressed when the contact lever 6a is pushed counterclockwise. After the shift lever 5a is separated from the contact rotary lever 6a, the elastic support 6d returns the push contact rotary lever 6a to the initial position.

As shown in fig. 3, the elastic support 6d includes a torsion spring 6d1 and a sleeve 6d2, the sleeve 6d2 is fixedly mounted on the mechanical counter 7, the sleeve 6d2 is sleeved on the outer edge of the counter rotating rod 7a, the torsion spring 6d1 is sleeved on the outer edge of the sleeve 6d2, and the torsion spring 6d1 is prevented from being in direct contact with the counter rotating rod 7 a. And then avoid when torsional spring 6d1 is promoted, the frictional force between torsional spring 6d1 and the counter bull stick 7a drives counter bull stick 7a rotation, and the one end and the contact bull stick 6a of torsional spring 6d1 are used for supporting the location to contact bull stick 6a for push away post 6b can keep laminating with rotatory drive plate 6c, and the other end and the sleeve 6d2 fixed connection of torsional spring 6d 1.

As shown in fig. 5, a spline shaft 3a is arranged at the end of the wheel shaft 3, a spline groove 5b clamped with the spline shaft 3a is arranged at the center of the flywheel 5, a cover plate 8 and a nut 9 are arranged at one side of the flywheel 5 away from the wheel shaft 3, the nut 9 penetrates through the cover plate 8 to be in meshed connection with the spline shaft 3a, and a threaded hole for the nut 9 to be meshed is formed in the spline shaft 3a, so that the flywheel 5 can be driven to rotate together when the wheel shaft 3 rotates. It is contemplated that spline shaft 3a and spline grooves 5b may be replaced with other conventional mechanical snap-fit arrangements.

One end of the deflector rod 5a is provided with a stud, and the flywheel 5 is provided with a screw hole which is meshed and connected with the stud, so that the deflector rod 5a is detachably connected with the flywheel 5, and the flywheel is convenient to process. The flywheel deflector rod is made of stainless steel with the diameter of 6mm, and the rod body is polished. The root is made into a thread, and the head is spherical, so that the counter is smooth when touched, and the mechanical counter is not damaged.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims

1. The blast furnace iron notch depth measuring device based on the hydraulic rock drill is characterized by comprising a flywheel (5), a one-way contact mechanism (6) and a mechanical counter (7), wherein the flywheel (5) is coaxial with a wheel shaft (3) and is fixedly connected, a deflector rod (5 a) is arranged on the flywheel (5), the deflector rod (5 a) is used for being in contact with the one-way contact mechanism (6), the mechanical counter (7) is fixedly connected with the hydraulic rock drill through a connecting base (4), the mechanical counter (7) comprises a counter rotating rod (7 a) and a reset button (7 b), the one-way contact mechanism (6) is fixedly arranged on the counter rotating rod (7 a), and a contact rod used for being in contact with the reset button (7 b) is arranged on a steel rail (2);

when the steel rail (2) is reset to the initial position, the contact rod is contacted with the reset button (7 b), and the mechanical counter (7) is cleared;

when the hydraulic rock drill moves towards the direction of the iron notch, the wheel (1) of the rock drill drives the flywheel (5) to rotate clockwise through the wheel shaft (3), and the deflector rod (5 a) pushes the counter rotating rod (7 a) to rotate through the unidirectional contact mechanism (6);

when the hydraulic rock drill moves towards the direction away from the iron notch, the wheel (1) of the rock drill drives the flywheel (5) to rotate anticlockwise through the wheel shaft (3), the deflector rod (5 a) pushes the unidirectional contact mechanism (6), the unidirectional contact mechanism (6) avoids the deflector rod (5 a), and the counter rotating rod (7 a) is not driven to rotate.

2. The blast furnace tap hole depth measuring device based on the hydraulic rock drill according to claim 1, wherein the number of the deflector rods (5 a) is four, and the four deflector rods (5 a) are uniformly arranged on the flywheel (5) along the axis of the flywheel (5).

3. A blast furnace tap hole depth measuring device based on a hydraulic rock drill according to claim 2, characterized in that the unidirectional contact mechanism (6) comprises a contact rotating rod (6 a), a push post (6 b), a rotary driving plate (6 c) and an elastic support (6 d), the contact rotating rod (6 a) is rotatably mounted on the counter rotating rod (7 a), the rotary driving plate (6 c) is fixedly connected with the counter rotating rod (7 a), the push post (6 b) is in contact with the rotary driving plate (6 c), and the elastic support (6 d) is used for supporting one side of the contact rotating rod (6 a) far away from the rotary driving plate (6 c);

when the wheel shaft (3) drives the flywheel (5) to rotate clockwise, the deflector rod (5 a) pushes the rotary driving plate (6 c) to rotate through the contact rotating rod (6 a) and the push column (6 b), so that the rotary driving plate (6 c) pushes the counter rotating rod (7 a) to rotate;

when the wheel shaft (3) drives the flywheel (5) to rotate anticlockwise, the deflector rod (5 a) pushes the contact rotating rod (6 a) anticlockwise, so that the deflector rod (5 a) is separated from the contact rotating rod (6 a).

4. A blast furnace taphole depth measuring device based on a hydraulic rock drill according to claim 3, characterized in that the elastic support (6 d) comprises a torsion spring (6 d 1) and a sleeve (6 d 2), the sleeve (6 d 2) is fixedly arranged on the mechanical counter (7), the sleeve (6 d 2) is sleeved on the outer edge of the counter rotating rod (7 a), the torsion spring (6 d 1) is sleeved on the outer edge of the sleeve (6 d 2), one end of the torsion spring (6 d 1) is contacted with the contact rotating rod (6 a) for supporting and positioning the contact rotating rod (6 a), and the other end of the torsion spring (6 d 1) is fixedly connected with the sleeve (6 d 2).

5. The blast furnace taphole depth measuring device based on the hydraulic rock drill according to claim 4, characterized in that a spline shaft (3 a) is arranged at the end part of the wheel shaft (3), a spline groove (5 b) which is clamped with the spline shaft (3 a) is formed in the center of the flywheel (5), a cover plate (8) and a nut (9) are arranged on one side, far away from the wheel shaft (3), of the flywheel (5), the nut (9) penetrates through the cover plate (8) to be in meshed connection with the spline shaft (3 a), and a threaded hole for the nut (9) to be meshed is formed in the spline shaft (3 a).

6. The blast furnace taphole depth measuring device based on the hydraulic rock drill according to claim 5, wherein a stud is arranged at one end of a deflector rod (5 a), and a screw hole meshed with the stud is arranged on the flywheel (5).