Method for operating a pusher ram

Abstract

The present application relates to a method for treating over-tight operation of a pusher ram, comprising the following steps: after the pusher ram has an over-tight operation failure, a hand shaking device is shaken by manpower to rotate the driving gear at a low speed to separate the contact between the driving teeth and the rack teeth in an abnormal meshing state, and to achieve a certain distance between the tooth tops of the driving teeth and the rack teeth in the abnormal meshing state; the top sleeve is installed on the tooth top of the rack teeth in the abnormal meshing state through the distance; the pusher ram is rotated for a period of time according to the required driving direction of the pusher ram by the inching pusher motor, and the downward rotating pressure and friction force on the top sleeve in the process of rotating the driving teeth to mesh with the rack teeth are used to drive the pusher ram to move to mesh the driving teeth and the rack teeth normally; the top sleeve is removed, and the normal operation of the pusher ram is restored. The present application can quickly solve the problem of over-tight operation of the pusher ram, and significantly reduces the time for treating over-tight operation of the pusher ram.

Description

Technical Field

[0001] This invention belongs to the technical field of coal chemical equipment fault handling, and more specifically, relates to a method for handling excessive stress in the operation of a coke pusher. Background Technology

[0002] Currently, the coke pushing device of the coke oven vehicle in the ironmaking and coking process mainly consists of a coke pushing drive system, a coke pushing rod, and corresponding idlers supporting the coke pushing rod. The coke pushing drive system is composed of a motor, a running control system, an eddy current brake, a parking brake, a reducer, drive gears, a hand crank, a hydraulic motor, and related connections. The coke pushing rod consists of a rack, movable gears, a rod body, a rod head, and large and small sliding shoes.

[0003] The coke pusher rod primarily pushes mature coke out of the coking chamber of the coke oven. It relies on the meshing of the drive teeth on the drive gear with the rack teeth of the rack mounted on the pusher rod. The rotation of the drive gear propels the entire pusher rod forward and backward. Its entire stroke is controlled by an encoder and an eddy current brake. If the encoder or eddy current brake in the control system malfunctions during operation, the pusher rod will lose control and experience over-stretching, causing the supporting rollers to break. The drive teeth will then mesh with the moving teeth, forcibly stopping the pusher. At this point, the relative position of the drive teeth's tips and the rack teeth changes, resulting in a change in stroke and the drive teeth being pressed against one side of the rack teeth, losing their meshing relationship. However, this over-stretching fault can only be resolved by dismantling the device, which is time-consuming.

[0004] Therefore, it is desirable to provide a method for quickly resolving the problem of excessive force in the coke pusher. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes a novel method for handling excessive force during the operation of the coke pusher.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] According to one aspect of the present invention, a method for handling excessive force during the operation of a coke pusher is provided, comprising the following steps:

[0008] 1) After the coke pusher rod experiences an over-strength failure, the drive gear is slowly rotated by manually cranking the hand crank device to disengage the drive teeth on the drive gear, which is in an abnormal meshing state, from the rack teeth on the coke pusher rod body, and to achieve a certain distance between the tooth tip of the drive teeth and the tooth tip of the rack teeth in an abnormal meshing state.

[0009] 2) Install the top sleeve on the tooth tip of the rack tooth that is in an abnormal meshing state by adjusting the spacing;

[0010] 3) The pusher motor is jogged to rotate for a period of time in the direction required to drive the pusher rod to move. The downward rotation pressure and friction on the top sleeve during the rotation of the drive teeth and meshing with the rack teeth are used to drive the pusher rod to move so that the drive teeth and rack teeth can mesh normally.

[0011] 4) Remove the top sleeve and restore the coke pusher to normal operation.

[0012] In one embodiment of the present invention, in step 1), the spacing meets the requirements for installing the top sleeve.

[0013] In one embodiment of the present invention, in step 2), the top sleeve is able to engage with the rack teeth.

[0014] In one embodiment of the present invention, in step 3), the top sleeve moves toward the root of the rack teeth when it is subjected to pressure and pushes the coke pusher rod together with the rack.

[0015] In one embodiment of the present invention, the inner side of the top sleeve has the same tooth shape module as the rack, and the outer side of the top sleeve has a circular arc guide structure at the contact point with the drive tooth.

[0016] In one embodiment of the present invention, the top sleeve is fitted laterally onto the top of the rack teeth.

[0017] In one embodiment of the present invention, the top sleeve is divided into multiple segments and installed on the top of the rack teeth.

[0018] In one embodiment of the invention, the top sleeve is made of rubber or wood or other materials with a hardness similar to that of rubber or wood.

[0019] In one embodiment of the present invention, when the top cover is made of wood, it can be soaked in water before use in a high-temperature environment.

[0020] In one embodiment of the invention, alternatively, in the event of a missing top cover, the top cover is replaced by a wooden board or a rubber board, or an article of similar hardness to a wooden board or a rubber board.

[0021] By adopting the above technical solution, the present invention has the following advantages compared with the prior art:

[0022] This invention quickly solves the problem of excessive force in the coking rod, significantly reduces the time required to handle excessive force in the coking rod, and solves the problems of long disassembly time and heavy load in existing methods when handling excessive force in the coking rod. Attached Figure Description

[0023] Figure 1 A flowchart of a method for handling excessive force during the operation of a coke pusher provided by the present invention is shown;

[0024] Figure 2 A schematic diagram of the structure after the push rod has been subjected to excessive force is shown;

[0025] Figure 3 A schematic diagram of the structure of the coke pusher after the top sleeve is installed is shown;

[0026] Figure 4 It shows Figure 3 Enlarged structural diagram of the installation location of the top sleeve;

[0027] Figure 5 It shows Figure 3 A schematic diagram of the side structure of the top sleeve mounted on the rack teeth;

[0028] Figure 6 It shows Figure 3 A schematic diagram of the front structure of the top sleeve mounted on the rack teeth;

[0029] Figure 7 It shows Figure 3 A schematic diagram of the side structure in which the top sleeve is installed on the tooth tip of the rack;

[0030] Figure 8 It shows Figure 3 A schematic diagram of the front structure of the top sleeve mounted on the top of the rack tooth.

[0031] List of reference numerals

[0032] Steps S101, S102, S103, and S104: 1. Coke pusher head; 2. Drive gear; 3. Drive tooth; 4. Movable tooth; 5. Rack; 51. Rack tooth; 52. Rack tooth tip; 6. Coke pusher body; 7. Idler roller; 8. Large slip shoe; 9. Top sleeve. Detailed Implementation

[0033] It should be understood that the embodiments of the invention shown in the exemplary embodiments are merely illustrative. Although only a few embodiments have been described in detail in this invention, those skilled in the art will readily recognize that various modifications are possible without substantially departing from the teachings of the invention. Accordingly, all such modifications should be included within the scope of the invention. Other substitutions, modifications, variations, and deletions can be made to the design, operating conditions, and parameters of the following exemplary embodiments without departing from the spirit of the invention.

[0034] The technical solution adopted in this invention is as follows: By manually shaking the coke pusher rod drive gear, a certain distance is achieved between the tooth tip of the drive tooth in an abnormal meshing state and the tooth tip of the rack tooth on the coke pusher rod. After a specially designed top sleeve is installed on the tooth tip of the rack tooth in an abnormal meshing state, the coke pusher motor is rotated in the direction required to drive the coke pusher rod to move by jogging. The rotation stops after a certain period of time. The pressure and friction on the top sleeve during the rotation of the drive tooth and the meshing of the rack tooth drive the coke pusher rod to move, so that the drive tooth and the rack tooth mesh normally, achieving the purpose of rapid recovery.

[0035] like Figure 1 As shown, the present invention provides a method for handling excessive force during the operation of a coke pusher, comprising the following steps:

[0036] Step S101: After the coke pusher rod experiences an over-strength failure, the drive gear is slowly rotated by manually cranking the hand crank device to disengage the drive teeth on the drive gear, which is in an abnormal meshing state, from the rack teeth on the coke pusher rod body, and to achieve a certain distance between the tooth tips of the drive teeth and the rack teeth in the abnormal meshing state.

[0037] Step S102: Install the top sleeve onto the tooth tip of the rack in an abnormal meshing state by adjusting the spacing;

[0038] Step S103: The pusher motor is jogged to rotate for a period of time in the direction required to drive the pusher rod to move. The downward rotation pressure and friction on the top sleeve during the meshing of the drive teeth on the drive gear with the rack on the pusher rod body are used to drive the pusher rod to move, so that the drive teeth and rack mesh normally.

[0039] Step S104: Remove the top sleeve and restore the normal operation of the coke pusher.

[0040] This invention quickly solves the problem of excessive force in the coking rod, significantly reduces the time required to handle excessive force in the coking rod, and solves the problems of long disassembly time and heavy load in existing methods when handling excessive force in the coking rod.

[0041] In the above method, in step S101, the spacing meets the requirements for installing the top sleeve.

[0042] In the above method, in step S102, the top sleeve can engage with the rack teeth.

[0043] In the above method, in step S103, when the top sleeve is subjected to pressure, it moves toward the root of the rack teeth and pushes the push rod together with the rack.

[0044] In the above method, the inner side of the top sleeve has the same tooth shape module as the rack, and the outer side of the top sleeve has a circular arc guide structure at the contact point with the drive tooth.

[0045] In the above method, the top sleeve is inserted laterally onto the top of the rack teeth.

[0046] In the above method, the top sleeve is divided into multiple segments and installed on the top of the rack teeth.

[0047] In the above method, the top sleeve is made of rubber or wood or other materials with a hardness similar to that of rubber or wood.

[0048] In the above method, when the top cover is made of wood, it can be soaked in water before use in high-temperature environments.

[0049] In the above method, alternatively, in the event of a missing top cover, the top cover may be replaced by a wooden board or a rubber board, or an item of similar hardness to a wooden board or a rubber board.

[0050] Specifically, in the specific embodiments of the present invention, such as Figure 2 The diagram shown illustrates the structure of the coke pusher after it has undergone excessive force. Figure 2 The coke pusher device includes a pusher rod head 1, a pusher rod body 6, a support roller 7 and a large slipper 8 located below the pusher rod body 6, a movable tooth 4 and a rack 5 mounted on the pusher rod body 6, and a drive tooth 3 on a drive gear 2 that meshes with the rack teeth 51 on the rack 5. During normal operation, the pusher rod moves forward and backward by the drive tooth 3 on the drive gear 2 meshing with the rack teeth 51 of the rack 5 mounted on the pusher rod body 6, and the rotation of the drive gear 2. When an over-strength fault occurs, the drive tooth 3 meshes with the movable tooth 4, forcibly stopping the operation. At this time, the relative position of the tooth tip of the drive tooth 3 and the rack teeth 51 of the rack 5 changes, resulting in a change in stroke that causes the drive tooth 3 to be pressed against one side of the rack teeth 51, losing its meshing relationship.

[0051] In order to restore the normal meshing between the drive tooth 3 and the rack tooth 51 on the rack 5, such as Figure 3-8 As shown, the present invention installs a special top sleeve 9 on the tooth tip 52 of the rack tooth 51 when it is in an abnormal meshing state. This specifically solves the problem. Figure 2 The method for the push rod to move through the force shown is as follows:

[0052] The present invention provides a method for handling excessive force on a coke pusher rod, which includes the steps of manual shaking, installing a top sleeve, jogging operation, and removing the top sleeve.

[0053] like Figure 3As shown, the method of the present invention is to manually crank the hand crank device to make the drive gear 2 rotate slowly, thereby disengaging the drive teeth 3 on the drive gear 2, which is in an abnormal meshing state, from the rack teeth 51 of the rack 5 on the coke pusher rod body 6. This makes the tooth tip of the drive teeth 3, which is in an abnormal meshing state, reach a certain distance from the tooth tip 52 of the rack teeth 51 on the coke pusher rod, so as to facilitate the installation of the top sleeve 9.

[0054] like Figure 3-8 As shown, the method of the present invention increases the height of the teeth by using a specially designed top sleeve 9 installed on the tooth tip 52 of the rack tooth 51 of the coke pusher rod, thereby achieving the purpose of meshing.

[0055] The method of the present invention is to rotate the pusher motor in the direction required to drive the pusher rod to move, and rotate it for a certain period of time.

[0056] like Figure 3-4 As shown, the method of the present invention is to drive the coke pusher rod to move by utilizing the pressure and friction force of the drive tooth 3 rotating and meshing with the rack tooth 51 during the meshing process, which presses on the top sleeve 9 and rotates downward, so that the drive tooth 3 and the rack tooth 51 mesh normally. When the top sleeve is subjected to the squeezing force, it moves towards the root of the rack tooth 51 and pushes the coke pusher rod to move with the rack 5.

[0057] In the method of the present invention, such as Figure 5-6 As shown, the inner side of the top sleeve 9 has the same tooth shape module as the rack tooth 51, and the outer side of the top sleeve 9 has a circular arc guide structure at the contact point with the drive tooth 3, so that the drive tooth 3 does not hit the top of the top sleeve 9 and lose its effect.

[0058] In the method of the present invention, such as Figure 7-8 As shown, the top sleeve 9 is fitted laterally onto the tooth tip 52 of the rack tooth 51, which is suitable for the push rod to move backward and forward.

[0059] In the method of the present invention, preferably, the top sleeve 9 can be divided into multiple segments and installed on the tooth tips 52 of the rack teeth 51 of the rack 5. For example, the top sleeve 9 can be divided into three segments and installed on the tooth tips 52 of the rack teeth 51 of the rack 5, such as... Figure 6 As shown by the dashed line, the top sleeve 9 is divided into three parts and installed side by side, following one side of the rack tooth 51 during installation. In other embodiments, the three parts may be installed with a certain distance between them, not necessarily as shown. Figure 6 The three shown are installed side by side.

[0060] In the method of the present invention, preferably, the top sleeve 9 can be made of rubber material or wood material or a material with a hardness similar to that of rubber material or wood material.

[0061] In the method of the present invention, when using a top cover made of wood in a high-temperature environment, the top cover can be soaked in water before use to prevent combustion.

[0062] In the method of the present invention, alternatively, in the event of the absence of the top sleeve 9, in an emergency, the top sleeve 9 may be replaced by a wooden board or a rubber board or an article of similar hardness to a wooden board or rubber board.

[0063] By adopting the above technical solution, the present invention can quickly solve the problem of excessive force in the coking rod operation, and the present invention also solves the problems of long dismantling time and heavy load when dealing with excessive force in the coking rod in the existing means.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications or equivalent substitutions made to the present invention without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present invention.

Claims

1. A method for handling excessive force during the operation of a coke pusher, characterized in that, Includes the following steps: 1) After the coke pusher rod experiences an over-strength failure, the drive gear is slowly rotated by manually cranking the hand crank device to disengage the drive teeth on the drive gear, which are in an abnormal meshing state, from the rack teeth on the coke pusher rod body, and to achieve a certain distance between the tooth tip of the drive teeth and the tooth tip of the rack teeth in an abnormal meshing state. 2) Install the top sleeve on the tooth tip of the rack tooth that is in an abnormal meshing state by adjusting the spacing; 3) The pusher motor is jogged to rotate for a period of time in the direction required to drive the pusher rod to move. The downward rotation pressure and friction on the top sleeve during the rotation of the drive teeth and meshing with the rack teeth are used to drive the pusher rod to move so that the drive teeth and rack teeth can mesh normally. 4) Remove the top sleeve and restore the coke pusher to normal operation.

2. The method for handling excessive force during the operation of the coke pusher according to claim 1, characterized in that, In step 1), the spacing meets the requirements for installing the top sleeve.

3. The method for handling excessive force during the operation of the coke pusher according to claim 1, characterized in that, In step 2), the top sleeve can engage with the rack teeth.

4. The method for handling excessive force during the operation of the coke pusher according to claim 1, characterized in that, In step 3), when the top sleeve is subjected to pressure, it moves toward the root of the rack teeth and pushes the coke pusher rod together with the rack.

5. The method for handling excessive force during the operation of the coke pusher according to claim 1, characterized in that, The inner side of the top sleeve has the same tooth shape module as the rack, and the outer side of the top sleeve has a circular arc guide structure at the contact point with the drive tooth.

6. The method for handling excessive force during the operation of the coke pusher according to claim 1, characterized in that, The top sleeve is fitted laterally onto the top of the rack teeth.

7. The method for handling excessive force during the operation of the coke pusher according to claim 1, characterized in that, The top sleeve is divided into multiple sections and installed on the top of the rack teeth.

8. The method for handling excessive force during the operation of the coke pusher according to claim 1, characterized in that, The top sleeve is made of rubber or wood, or other materials with a hardness similar to that of rubber or wood.

9. The method for handling excessive force during the operation of the coke pusher according to claim 8, characterized in that, When the top sleeve is made of wood, it can be soaked in water before use in high-temperature environments.

10. The method for handling excessive force during the operation of the coke pusher according to claim 1, characterized in that, Alternatively, in the event of the missing top sleeve, the top sleeve may be replaced by a wooden board or a rubber board, or an item of comparable hardness to a wooden board or a rubber board.

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