Mechanical touch stroke switch detects running equipment deformation shutdown protection device

Abstract

The utility model relates to a kind of mechanical touch stroke switch detection operation equipment deformation shutdown protection device, including stroke switch, connecting rod, detection wheel, base, first sheath, second sheath, pin shaft.The device simple structure, low in manufacturing cost, part is easily replaced, the stroke switch of this device is fixed on base and connected with connecting rod, the position of the detection wheel set changes, the connecting rod of self-connection is driven the connecting rod of limit body self-attached, deviates original position, reaches the numerical value when setting distance and sends out signal alarm, to prompt that movement component is deformed or shutdown.

Description

Technical Field

[0001] This patent application belongs to the technical field of equipment deformation detection system, and more specifically, it relates to a mechanical contact limit switch detection device for stopping and protecting operating equipment in case of deformation. Background Technology

[0002] The coal leveling rod is an important piece of equipment in the coking car. Its main function is to level the coking coal in the carbonization chamber, ensuring that the coal is packed evenly and uniformly. This guarantees a uniform space at the top of the carbonization chamber, preventing blockages and missing corners, and allowing for unobstructed gas flow. Additionally, leveling the coal also compacts it, increasing the amount of coal loaded into the carbonization chamber, which in turn increases the yield of coke and chemical products. The increased bulk density of the coking coal further improves coke quality.

[0003] The coal leveling boom currently in use mainly consists of a front section, a middle section, a tail section, idlers, guide rollers, limit switches, and a wire rope fixing device. Its rated lifting capacity is 4.831t, and its length is 28.945m. The coal leveling speed is 60 m / min.

[0004] Currently, there is no detection device during the coal leveling process. Because the coal leveling rod of the coke pusher needs to enter the coke oven to work, and because the rod itself is thin and relatively long, it is prone to deformation under high temperatures. Working in the high-temperature coke oven for extended periods, if the rod bends more than 30mm upwards and more than 20mm laterally due to heat, it will break free from the support rollers' restraints, deviate from its original trajectory, and scrape against the furnace wall, collide with surrounding equipment, or cause damage to itself or other equipment, leading to equipment shutdown. During the process of re-entering the furnace, it may collide with the front protective cover and small furnace door, causing the rod to bend and become damaged, preventing it from entering the furnace. This can also cause equipment accidents, escalate existing accidents, directly damage equipment, and disrupt normal production. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a mechanical contact limit switch detection device for equipment deformation and shutdown protection. This device can ensure that the deformation of the operating equipment is within the specified range at all times, and completely solves the problem of equipment deformation causing damage to surrounding equipment and itself, thus preventing the escalation of equipment accidents.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] A mechanical contact limit switch detection and deformation shutdown protection device for operating equipment is installed at the front of a coal leveling rod. It includes a base, a first and second sheath installed on the upper and lower sides of the base respectively, a first connecting rod inserted into the first sheath, a third connecting rod inserted into the second sheath, a first detection wheel rotatably connected to the first connecting rod, a third detection wheel rotatably connected to the third connecting rod, a pin installed on the base and located beside the second sheath, a second connecting rod rotatably mounted on the pin through which the pin passes, and a second detection wheel rotatably connected to the second connecting rod. The first connecting rod and the first sheath, and the third connecting rod and the second sheath, are clearance fits; the second connecting rod and the pin are clearance fits, and the second connecting rod can rotate flexibly around the pin.

[0008] The first detection wheel, the second detection wheel, and the third detection wheel are all located on the outside of the base, which is fixed to the steel structure at the upper front section of the coal leveling rod.

[0009] It also includes a first limit switch, a second limit switch, and a third limit switch mounted on the base. The swing arm of the first limit switch is connected to the first link, the swing arm of the second limit switch is connected to the second link, and the swing arm of the third limit switch is connected to the third link. The first limit switch, the second limit switch, and the third limit switch are all linked with the central control system.

[0010] Furthermore, the first limit switch, the second limit switch, and the third limit switch are fixed to the base with bolts.

[0011] Furthermore, the base is made of 6mm~10mm steel plate.

[0012] Furthermore, the first sheath, the second sheath, and the pin are all fixedly welded to the base.

[0013] Furthermore, the first limit switch, the second limit switch, and the third limit switch are all DTH type high temperature resistant limit switches.

[0014] Furthermore, the first, second, and third links are all L-shaped links.

[0015] The beneficial effects achieved by this utility model due to the adoption of the above technical solution are as follows:

[0016] This device has a simple structure, low manufacturing cost, and easily replaceable parts, ensuring that the deformation of the operating equipment is monitored and kept within the specified range in real time. Because the coal leveling rod is subjected to high temperature and the force of the raw coal in the open-hearth furnace, deformation is inevitable. Exceeding plastic deformation can lead to permanent deformation. This device sets the detection value to the maximum deformation that does not affect normal use. It ensures that any deformation during operation, reaching the set value and triggering the limit switch, will trigger a stop signal, requiring timely repair, correction, or replacement of the equipment. This completely solves the problem of equipment deformation damaging surrounding equipment and itself, preventing the escalation of equipment accidents, achieving controllable equipment operation, and enabling planned maintenance and repair.

[0017] This device has a simple structure, low manufacturing cost, and easy-to-replace parts. The device fixes the limit switch on the base and connects it to the connecting rod. When the position of the set detection wheel changes, it drives the connecting rod of the limit body to deviate from the original position through the connecting rod of its own connection. When it reaches the set distance value, it sends a signal alarm, thereby indicating that the deformation of the moving parts exceeds the standard or stopping the machine. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention;

[0019] Figure 2 yes Figure 1 The motion state diagram;

[0020] Figure 3 This is a top view of the structure of this utility model;

[0021] Figure 4 yes Figure 3 The motion state diagram;

[0022] In the diagram: First limit switch 1, second limit switch 2, third limit switch 3, first link 4, second link 5, third link 6, first detection wheel 7, second detection wheel 8, third detection wheel 9, base 10, first protective sleeve 11, second protective sleeve 12, pin 13. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the embodiments.

[0024] A mechanical contact limit switch detection and deformation shutdown protection device for operating equipment, such as Figures 1-4The device comprises three limit switches, pins 13, three connecting rods, three detection wheels, two protective sleeves, and a base 10. The first limit switch 1, the second limit switch 2, and the third limit switch 3 are connected to the first detection wheel 7, the second detection wheel 8, and the third detection wheel 9 respectively via their respective first connecting rods 4, second connecting rods 5, and third connecting rods 6. The first limit switch 1, the second limit switch 2, and the third limit switch 3 are all mounted on the base 10. The first protective sleeve 11 and the second protective sleeve 12 serve as slide rails for the first connecting rod 4 and the third connecting rod 6, and are fixed to the base 10. The base 10 is mounted and fixed to the upper steel structure of the front section of the coal leveling rod.

[0025] Pin 13 is mounted on base 10, passes through and fixes the second connecting rod 5, and the second connecting rod 5 can rotate flexibly around pin 13. The first detection wheel 7 and the third detection wheel 9 move in the direction of the first sheath 11 and the second sheath 12 under force via their respective connecting rods (first connecting rod 4 and third connecting rod 6), driving the corresponding limit switches (first limit switch 1 and third limit switch 3). The second detection wheel 8 is mounted on pin 13 via the second connecting rod 5 and can move upwards to drive the second limit switch 2. The first detection wheel 7, the second detection wheel 8, and the third detection wheel 9 can rotate flexibly on the corresponding first connecting rod 4, second connecting rod 5, and third connecting rod 6.

[0026] by Figure 2 , Figure 4 For example, with the horizontal direction of movement, the device bends to the left, pushing the first detection wheel 7; bends to the right, pushing the third detection wheel 9; and bends upwards, pushing the second detection wheel 8. If any one of the detection wheels (first detection wheel 7, second detection wheel 8, third detection wheel 9) is pushed to the set data by external force, the corresponding limit switch (first limit switch 1, second limit switch 2, third limit switch 3) will activate and stop the machine, indicating that the equipment deformation exceeds the standard. Replacement is necessary to prevent accidents.

[0027] The first limit switch 1, the second limit switch 2, and the third limit switch 3 are fixed to the base 10 by bolts. The first connecting rod 4, the second connecting rod 5, and the third connecting rod 6 are connected to the corresponding limit switch (first limit switch 1, second limit switch 2, and third limit switch 3) swing arms, which can drive the swing arms to move together.

[0028] The first connecting rod 4 and the third connecting rod 6 are clearance-fitted with the first sheath 11 and the second sheath 12, allowing them to slide freely within the first sheath 11 and the second sheath 12. The pin 13 passes through the second connecting rod 5, and the second connecting rod 5 is clearance-fitted with the pin 13, allowing the second connecting rod 5 to rotate freely around the pin 13.

[0029] The first sheath 11, the second sheath 12, and the pin 13 are all fixedly welded to the base 10.

[0030] The first detection wheel 7, the second detection wheel 8, and the third detection wheel 9 are installed on the first connecting rod 4, the second connecting rod 5, and the third connecting rod 6, respectively, and can rotate flexibly. When in contact with the equipment (coal leveling rod), they can rotate with the equipment (coal leveling rod) until the equipment (coal leveling rod) deforms and pushes the corresponding detection wheels (first detection wheel 7, second detection wheel 8, and third detection wheel 9) to move outward to the set distance.

[0031] During manufacturing, the base 10 is made of steel plate with a thickness of 6mm to 10mm. The first limit switch 1, the second limit switch 2, and the third limit switch 3 are first installed on the base 10. The pin 13 passes through the second connecting rod 5 and is then fixed to the base 10. The first sheath 11 and the second sheath 12 are welded to the base 10. The first connecting rod 4 and the third connecting rod 6 pass through the first sheath 11 and the second sheath 12 and are connected to the swing arms of the first limit switch 1 and the third limit switch 3. The first detection wheel 7, the second detection wheel 8, and the third detection wheel 9 are installed onto the first connecting rod 4, the second connecting rod 5, and the third connecting rod 6.

[0032] After all components are assembled on the base 10, they are installed and fixed onto the upper steel structure of the operating equipment, depending on the site conditions.

[0033] exist Figure 2 In the middle, when the coal leveling rod bends and deforms upwards, it will push the second detection wheel 8. Figure 4 In the middle, when the coal leveling rod bends and deforms to the left, it will push the first detection wheel 7; similarly, when it bends and deforms to the right, it will push the third detection wheel 9.

[0034] In practical applications, the installation location of this device can be determined according to the site conditions. It is designed to accurately detect and meet production needs, facilitate inspection, maintenance, and repair, and avoid affecting the operation of other equipment. The contact distance between the swing arms of each limit switch (first limit switch 1, second limit switch 2, and third limit switch 3) and the components is adjusted according to the site distance to ensure that the pressure distance of the detection wheels (first detection wheel 7, second detection wheel 8, and third detection wheel 9) is the maximum deformation required after equipment deformation. This ensures that the deformation of the detection equipment does not exceed the maximum deformation, completely solving the problem of equipment deformation damaging surrounding equipment and itself, preventing the escalation of equipment accidents, achieving equipment control, and ensuring the execution of maintenance and repair plans.

Claims

1. A mechanical contact limit switch detection and deformation shutdown protection device for operating equipment, installed at the front end of a coal leveling rod, characterized in that: The system includes a base (10), a first sleeve (11) and a second sleeve (12) respectively installed on the upper and lower sides of the base (10), a first connecting rod (4) inserted into the first sleeve (11), a third connecting rod (6) inserted into the second sleeve (12), a first detection wheel (7) rotatably connected to the first connecting rod (4), a third detection wheel (9) rotatably connected to the third connecting rod (6), a pin (13) installed on the base (10) and located next to the second sleeve (12), a second connecting rod (5) rotatably mounted on the pin (13), and a second detection wheel (8) rotatably connected to the second connecting rod (5); the first connecting rod (4) and the first sleeve (11) and the third connecting rod (6) and the second sleeve (12) are both clearance fits; the second connecting rod (5) and the pin (13) are clearance fits, and the second connecting rod (5) can rotate flexibly around the pin (13); The first detection wheel (7), the second detection wheel (8), and the third detection wheel (9) are all located outside the base (10), and the base (10) is installed and fixed on the steel structure at the upper part of the front section of the coal leveling rod; It also includes a first limit switch (1), a second limit switch (2), and a third limit switch (3) set on the base (10). The swing arm of the first limit switch (1) is connected to the first link (4), the swing arm of the second limit switch (2) is connected to the second link (5), and the swing arm of the third limit switch (3) is connected to the third link (6). The first limit switch (1), the second limit switch (2), and the third limit switch (3) are all linked with the central control system.

2. The mechanical contact limit switch detection and deformation shutdown protection device for operating equipment according to claim 1, characterized in that: The first limit switch (1), the second limit switch (2), and the third limit switch (3) are fixed to the base (10) by bolts.

3. The mechanical contact limit switch detection and deformation shutdown protection device for operating equipment according to claim 2, characterized in that: The base (10) is made of 6mm~10mm steel plate.

4. The mechanical contact limit switch detection and deformation shutdown protection device for operating equipment according to claim 2, characterized in that: The first sheath (11), the second sheath (12), and the pin (13) are all fixedly welded to the base (10).

5. The mechanical contact limit switch detection and deformation shutdown protection device for operating equipment according to claim 1, characterized in that: The first limit switch (1), the second limit switch (2), and the third limit switch (3) are all DTH type high temperature resistant limit switches.

6. A mechanical contact limit switch detection and equipment deformation shutdown protection device according to any one of claims 1-5, characterized in that: The first link (4), the second link (5), and the third link (6) are all L-shaped links.

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