Coke pushing rod anti-falling structure for coke pusher

Abstract

The utility model discloses a coke pushing rod anti-falling structure for a coke pusher, and belongs to the technical field of coke oven moving machinery. Comprising a U-shaped supporting rod, a spring and movable teeth. The rear end of the coke pushing rod and the rear side of the rack are connected with a U-shaped supporting rod, a spring and a movable tooth are sleeved on a cross rod of the U-shaped supporting rod, one end of the spring is connected with the U-shaped supporting rod, and the other end of the spring is connected with the movable tooth; the movable teeth are in sliding connection with the U-shaped supporting rod; when the coke pushing rod moves forwards, the transmission gear is meshed with the movable gear, the spring counteracts the displacement of the coke pushing rod, and the coke pushing rod is always kept at the original position and is prevented from being derailed and pushed out of the furnace body; the coke pushing rod derailing device is simple in structure and solves the problem of derailing of the coke pushing rod.

Description

Technical Field

[0001] The utility model belongs to the technical field of coke oven mobile machinery, in particular to a coke pushing rod anti-slip structure for a coke pushing vehicle. Background Art

[0002] The main product of a coking plant is coke. First, the prepared fine coal is loaded into a coal tower, and then loaded into the coal box of a ramming coal-loading car through a feeder. The coal is rammed into coal cakes, and then the ramming coal-loading car sends the coal cakes from the machine side into the carbonization chamber of the coke oven. The coal cakes undergo a coking cycle and high-temperature dry distillation in the carbonization chamber to form mature coke. Finally, the coke in the carbonization chamber is pushed to the quenching car by a coke pusher. The hot coke is cooled to below 200°C through wet quenching or dry quenching, and transported to the coke storage yard by a belt for sale.

[0003] The coke pushing device uses a transmission mechanism to drive a pusher rod, pushing the mature coke out of the carbonization chamber. The pusher rod's stroke and total length are determined by the length of the carbonization chamber, typically leaving a margin of approximately 200 mm. The pusher rod is often constructed in two detachable sections for ease of transportation, installation, and storage. To reduce the overall dimensions of the coke pusher, the tail of the pusher rod can be tilted. The width of the pusher rod head is 80 to 90 mm narrower than the average width of the carbonization chamber. The pushing speed is generally 20 to 30 m / min.

[0004] The coke pushing rod's pushing speed generally progresses through a process of low speed, high speed, low speed, and then stop. Currently, the coke pushing rod primarily uses electrical limit switches to determine distance, controlling the rod's speed to low, high, low, and then stop. The temperature of mature coke is between 950°C and 1050°C. During the coke pushing process, there is significant resistance. Limit switches are typically installed at both the forward and rearward ends of the coke pushing rod. Because the coke pushing rod must withstand the 1000°C furnace heat, the limit switches have a high failure rate. If a limit switch fails during this process, the coke pushing rod will derail due to inertia and may not recover for several hours. Prolonged exposure to the high-temperature furnace chamber can cause the rod to deform, disrupting subsequent production and resulting in significant direct economic losses. If the limit switch fails and cannot operate, the coke pushing rod cannot be stopped and may be pushed completely into the furnace, leading to a derailment accident. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and proposes a coke pushing rod anti-slip structure for a coke pushing vehicle to solve the problem of coke pushing rod derailment. The utility model is achieved through the following technical solutions:

[0006] The cam is fixed to the front end of the coke pushing rod, and a rack is provided at the bottom of the rear end of the coke pushing rod; the transmission wheel is arranged below the coke pushing rod, and a transmission tooth is provided on the outer periphery of the transmission wheel, the transmission wheel is connected to the motor, and the transmission tooth is meshed with the rack; it also includes a U-shaped support rod, a spring and a movable tooth; a U-shaped support rod is connected at the rear end of the coke pushing rod and on the rear side of the rack, the U-shaped support rod includes a cross bar and two vertical bars, and the two vertical bars are fixedly connected to the two ends of the cross bar respectively; the two vertical bar ends of the U-shaped support rod are connected to the coke pushing rod, and one of the vertical bars is adjacent to the last tooth of the rack, the spring and the movable tooth are both sleeved on the cross bar of the U-shaped support rod, one end of the spring is connected to the vertical bar adjacent to the rack, and the other end of the spring is connected to the movable tooth; the movable tooth is slidably connected to the cross bar of the U-shaped support rod.

[0007] Furthermore, the movable teeth are smaller than the teeth on the rack.

[0008] Furthermore, the length of the spring is the length of two teeth on the rack; one end of the movable tooth contacts the vertical rod of the U-shaped support rod away from one end of the rack.

[0009] Furthermore, the ends of the two vertical rods at both ends of the U-shaped support rod are embedded in the coke pushing rod and welded to the coke pushing rod.

[0010] Furthermore, a coke pushing head is embedded in the front end of the coke pushing rod and is fastened to the coke pushing head by screws; an iron shoe is fixedly connected to the bottom of the coke pushing head.

[0011] Furthermore, it also includes a support frame and a guide frame; the support frame is connected to the bottom of the coke pushing rod, and the guide frame is rotatably connected to a guide wheel; the coke pushing rod is slidably connected to the guide wheel.

[0012] Furthermore, a through hole is left on the movable tooth, which can be passed through the U-shaped support rod.

[0013] The beneficial effects of the present invention compared to the prior art are as follows:

[0014] The coke pushing rod described in the utility model is provided with a row of racks, and the transmission gear is engaged with the racks on the coke pushing rod; to push the coke pushing rod forward and backward, the utility model designs an elastic movable tooth at the very end of the rack, when the coke pushing rod moves forward to the position of the elastic movable tooth, the transmission gear engages with the elastic movable tooth, and the elastic movable tooth offsets the displacement of the transmission gear through spring compression, and during the alternation of the two gears, the elastic movable tooth returns to its original state, and the cycle continues. Although the transmission gear is always working, the coke pushing rod no longer moves forward, thereby preventing derailment. When the coke pushing rod moves backward, the elastic movable tooth can serve as a part of the rack, so that the coke pushing rod can move backward smoothly under the drive of the transmission gear, thereby ensuring that the coke pushing rod will never derail. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a coke pushing rod anti-slip structure for a coke pushing vehicle according to the present invention;

[0016] Figure 2 This is a schematic structural diagram of the movable teeth of the present invention;

[0017] Among them: 1. Pushing head; 2. Pushing rod; 3. Iron shoe; 4. Guide wheel; 5. Support frame; 6. Guide frame; 7. Rack; 8. Transmission gear; 9. Transmission wheel; 10. Spring movable gear assembly; 11. Spring; 12. U-shaped support rod; 13. Movable gear DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. The technical solutions of the present invention will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0019] See also Figure 1 and Figure 2 The present embodiment proposes a coke pushing rod anti-slip structure for a coke pushing car, comprising a coke pushing rod 2, a guide frame 6, a support frame 5, a coke pushing head 1, a transmission wheel 9, a rack 7, a U-shaped support rod 12, a spring 11 and a spring movable tooth assembly 10; the coke pushing head 1 is fixed to the front end of the coke pushing rod 2, and the coke pushing head 1 contacts the coke and pushes the mature coke from the furnace body to the coke quenching car; a section is embedded in the coke pushing head 1 at the front end of the coke pushing rod 2, and is fastened to the coke pushing head 1 by screws to prevent the coke pushing head 1 from loosening; the iron shoe 3 is fixedly connected to the bottom of the coke pushing head 1 It plays the role of supporting the coke pushing head 1. In addition, the iron shoe 3 is in contact with the floor of the furnace body, and the fallen coke can be cleaned up; the support frame 5 is composed of a base and a support rod. The support frame 5 is connected to the bottom of the coke pushing rod 2 to support the coke pushing rod 2 and prevent the coke pushing rod 2 from deformation; the guide frame 6 and the coke pushing rod 2 are supported by four surfaces through the guide wheel 4, and the coke pushing rod 2 is slidably connected to the guide wheel 4, which plays a guiding and limiting role to prevent the coke pushing rod 2 from running out of the track during movement; a rack 7 is welded on the coke pushing rod 2 to move the coke pushing rod 2.

[0020] A transmission wheel 9 is provided on the ground, and a transmission tooth 8 is provided on the outer periphery of the transmission wheel 9. The rotation displacement is transmitted to the transmission wheel 9 through the reducer through the motor transmission, and the transmission wheel 9 drives the transmission tooth 8 to rotate. The transmission tooth 8 and the rack 7 are engaged, and the rotation displacement can be converted into a horizontal displacement and transferred to the coke pushing rod 2, driving the coke pushing rod 2 to move forward and backward. The coke pushing rod 2 moves forward to push out the coke and moves backward to exit the furnace body. If the limit fails in the process of the coke pushing rod 2 pushing the coke forward, it will cause the coke pushing rod 2 to lose teeth and run out of the track, and it will be very difficult to recover. In this embodiment, if Figure 2 As shown, a spring movable tooth integration 10 is provided at the end of the coke pushing rod 2 and on the rear side of the rack 7; the spring movable tooth integration 10 includes a U-shaped support rod 12, a spring 11 and a movable tooth 13; the U-shaped support rod 12 is welded to the coke pushing rod 2, and the U-shaped support rod 12 includes a cross bar and two vertical rods, and the two vertical rods are fixedly connected to the two ends of the cross bar; the two vertical rod ends at both ends of the U-shaped support rod 12 are embedded in the coke pushing rod 2 and welded to the coke pushing rod 2, and one of the vertical rods is adjacent to the last tooth of the rack 7, and the spring 11 and the movable tooth 13 are both sleeved on the cross bar of the U-shaped support rod 12, one end of the spring 11 is connected to the vertical rod adjacent to the rack 7, and the other end of the spring 11 is connected to the movable tooth 13.

[0021] In this embodiment, the movable tooth 13 is smaller than the teeth on the rack 7. A through hole is left on the movable tooth 13 so that it can be passed through the U-shaped support rod 12 and slidably connected to the cross bar of the U-shaped support rod 12. The left side of the spring 11 is welded to the leftmost vertical rod side of the U-shaped support rod 12, and the right side of the spring 11 is welded to the movable tooth 13. The right side of the movable tooth 13 contacts the vertical rod on the right side of the U-shaped support rod 12. The length of the spring 11 is the length of two teeth on the rack 7. When the coke pushing rod 2 moves forward so that the transmission tooth 8 is located at the position of the movable tooth 13, the transmission wheel 9 drives the transmission tooth 8 to engage with the movable tooth 13, and the movable tooth 13 moves to the left, at this time the spring is displaced to offset the displacement of the coke pushing rod 2, and the coke pushing rod 2 still maintains its original position. After the engagement is completed, under the action of the spring 11, the movable tooth 13 returns to its original state, and the next transmission tooth 8 continues to engage with the movable tooth 13. In this process, as long as the transmission tooth 8 moves to the left, the coke pushing rod 2 will always maintain its original position, preventing the coke pushing rod 2 from derailing and being pushed out of the furnace body; when the transmission tooth 8 moves to the right, the movable tooth 13, like the rack 7, drives the coke pushing rod 2 to move to the right, pulling the coke pushing rod 2 out of the furnace body, and so on and so forth, avoiding the risk of the coke pushing rod 2 derailing.

[0022] The above content is a further detailed description of the present invention in combination with a specific preferred embodiment. It cannot be determined that the specific embodiments of the present invention are limited to this. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the present invention, which should be regarded as belonging to the present invention and the scope of patent protection determined by the submitted claims.

Claims

1. A coke pushing rod anti-slip structure for a coke pushing vehicle, comprising a coke pushing rod (2), a coke pushing head (1), a transmission wheel (9) and a rack (7); the coke pushing head (1) is fixed to the front end of the coke pushing rod (2), and a rack (7) is provided at the bottom of the rear end of the coke pushing rod (2); the transmission wheel (9) is provided below the coke pushing rod (2), and a transmission tooth (8) is provided on the outer periphery of the transmission wheel (9), the transmission wheel (9) is connected to a motor, and the transmission tooth (8) is meshed with the rack (7); it is characterized in that The invention also includes a U-shaped support rod (12), a spring (11) and a movable tooth (13); a U-shaped support rod (12) is connected to the rear end of the coke pushing rod (2) and the rear side of the rack (7); the U-shaped support rod (12) includes a crossbar and two vertical rods, and the two vertical rods are fixedly connected to the two ends of the crossbar; the two vertical rod ends of the U-shaped support rod (12) are connected to the coke pushing rod (2), and one of the vertical rods is adjacent to the last tooth of the rack (7); the spring (11) and the movable tooth (13) are both sleeved on the crossbar of the U-shaped support rod (12), one end of the spring (11) is connected to the vertical rod adjacent to the rack (7), and the other end of the spring (11) is connected to the movable tooth (13); the movable tooth (13) is slidably connected to the crossbar of the U-shaped support rod (12).

2. The anti-slip structure for a coke pushing rod of a coke pushing vehicle according to claim 1, characterized in that: The movable teeth (13) are smaller than the teeth on the rack (7).

3. The anti-slip structure for a coke pushing rod of a coke pushing vehicle according to claim 2, characterized in that: The length of the spring (11) is the length of two teeth on the rack (7); one end of the movable tooth (13) and the U-shaped support rod (12) are in contact with the vertical rod at one end at a distance of two racks from the rack (7).

4. The anti-slip structure for a coke pushing rod of a coke pushing vehicle according to claim 1, characterized in that: The ends of the two vertical rods at both ends of the U-shaped support rod (12) are embedded in the coke pushing rod (2) and welded to the coke pushing rod (2).

5. The anti-slip structure for a coke pushing rod of a coke pushing vehicle according to claim 1, characterized in that: The front end of the coke pushing rod (2) is embedded with a coke pushing head (1) and is fastened to the coke pushing head (1) by screws; the bottom of the coke pushing head (1) is fixedly connected with an iron shoe (3).

6. The anti-slip structure for a coke pushing rod of a coke pushing vehicle according to claim 1, characterized in that: It also includes a support frame (5) and a guide frame (6); the support frame (5) is connected to the bottom of the coke pushing rod (2), and the guide frame (6) is rotatably connected to the guide wheel (4); the coke pushing rod (2) is slidably connected to the guide wheel (4).

7. The anti-slip structure for a coke pushing rod of a coke pushing vehicle according to claim 1, characterized in that: The movable tooth (13) is provided with a through hole capable of being passed through the U-shaped support rod (12).

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