Double-link coupling for tamping coke oven

Abstract

The utility model relates to the technical field of couplings, in particular to a dual-link coupling for a tamping coke oven, which comprises two fixedly connected inner gear rings, gear shafts are engaged in the two inner gear rings, front end flanges are fixed at the opposite ends of the two inner gear rings, and rear end flanges are fixed on the two gear shafts. And the front-end flange is detachably connected with the rear-end flange. In the power transmission process, the front-end flange is fixedly connected with the inner gear ring, the rear-end flange is fixedly connected with the gear shaft, and the front-end flange is detachably connected with the gear shaft through the connecting piece, so that the stress load of teeth between the gear shaft and the inner gear ring is shunted, the stress load of the teeth can be reduced, and the tooth breakage rate is reduced; and the connection strength between the inner gear ring and the gear shaft can be enhanced. And when tooth breakage occurs, the front-end flange and the rear-end flange are connected in a fastened mode, the inner gear ring and the gear shaft can still be stably connected, power is transmitted, and the stability of power transmission is improved.

Description

Technical Field

[0001] The present application relates to the technical field of couplings, and in particular to a double-link coupling for ramming coke ovens. Background Art

[0002] Stamping coke oven refers to a side-loading coke oven that uses the tamping method to load coal for coking. The tamping coking process is mature and easy to operate. It is especially suitable for coking with high-volatile weakly caking coal as the main coal blending. It has the advantages of high automation and institutionalization, high tamping density, reduced mechanical wear, reduced labor intensity, improved operating environment and reduced unorganized emissions.

[0003] The tamping station is an important link in the production of tamping coke ovens. The motive force generated by the motor is vertically transmitted from the primary coupling to the primary reduction box, and then transmitted to the secondary reduction box through the longitudinal gear coupling. Through the rotation of the gear, the eccentric group makes the tamping hammer move up and down to impact and compact the coal powder. The coupling of the secondary reducer of the tamping station is an important power transmission device. If a fault occurs, it will cause the transmission to fail and the coal cake cannot be tamped, which will cause the problem of supporting coke. Long-term coke dragging makes the furnace temperature difficult to control and affects the heating system; it causes the temperature of the furnace top space to increase, affecting the quality of the recovered products, especially the quality of tar, its specific gravity increases, the viscosity increases, and it is not easy to dehydrate. This indirect increase in production costs and reduced profits. In addition, long-term coke dragging increases the difficulty of pushing coke and the risk of damage to the furnace body. Moreover, long-term coke dragging will also cause the dry quenching coke oven to fail to obtain coke heat in time, resulting in a reduction in the power generation of the steam turbine. In addition, after the coupling of the secondary reducer of the tamping station breaks, the tamping hammer will fall instantly, causing serious damage to equipment and personnel.

[0004] The gear coupling has the following problems in use:

[0005] 1. Since there is a gap between the teeth of the inner gear ring and the gear shaft and the two tooth surfaces periodically slide axially relative to each other, they are easily contaminated by coal powder, causing damage to the lubrication system and grease.

[0006] 2. During the transmission process of the gear coupling, friction and wear will occur between the gears, which cannot be repaired. If the problem of broken teeth occurs, it will cause the coupling to fail, resulting in the above-mentioned focus problem.

[0007] 3. And after the gear coupling fails, most of them are replaced as a whole. Because there needs to be a certain gap between the gears, a correspondingly large space is required for installation and disassembly. The equipment characteristics of the tamping station are compact structure and small available space, which increases the difficulty and workload of maintenance, affects subsequent production, and causes damage to the furnace body.

[0008] 4. Gear couplings are prone to lateral loads during operation. If overloaded, they may fail, and may even cause equipment damage or worker injuries, making them relatively less safe.

[0009] To this end, the present application provides a double-link coupling for a ramming coke oven, which improves the use strength of the coupling and increases its service life. Utility Model Content

[0010] The purpose of the present application is to solve the problems existing in the prior art and to propose a double-link coupling for ramming coke ovens.

[0011] In order to achieve the above purpose, this application adopts the following technical solutions:

[0012] A double-link coupling for tamping coke ovens comprises two fixedly connected inner gear rings, gear shafts are meshed in the two inner gear rings, front end flanges are fixed to the opposite ends of the two inner gear rings, rear end flanges are fixed to the two gear shafts, and the front end flanges are detachably connected to the rear end flanges.

[0013] Preferably, dust baffles are detachably mounted on opposite ends of the two rear end flanges.

[0014] Preferably, the front end flange and the rear end flange are both pin flanges, and the front end flange and the rear end flange are plugged in via a nylon rod pin shaft.

[0015] Preferably, the front end flange and the rear end flange are respectively welded to the inner gear ring and the outer wall of the gear shaft.

[0016] Preferably, a shaft sleeve and a shoulder are welded to the front end flange and the rear end flange respectively, and the shaft sleeve and the shoulder are connected to the corresponding inner gear ring and gear shaft via fasteners.

[0017] Preferably, the front end flange, the rear end flange and the dust baffle are all divided into a plurality of petals.

[0018] Preferably, sealing gaskets are provided between the front end flange and the rear end flange, and between the inner wall of the dust baffle and the gear shaft.

[0019] Compared with the prior art, the present application provides a double-link coupling for tamping coke ovens, which has the following beneficial effects:

[0020] 1. During the power transmission process, the front flange is fixedly connected to the inner gear ring, and the rear flange is fixedly connected to the gear shaft. The front flange and the gear shaft are detachably connected via a connecting piece, which diverts the force load on the teeth between the gear shaft and the inner gear ring, which can reduce the force load on the teeth and reduce the tooth collapse rate; it can also strengthen the connection strength between the inner gear ring and the gear shaft. In addition, when tooth collapse occurs, the front flange and the rear flange are tightly connected, which can still make the inner gear ring and the gear shaft stably connected and transmit power, thereby improving the stability of power transmission.

[0021] 2. The gear coupling is embedded between the two rear flanges to limit the gear coupling and reduce the generation of lateral load, thereby reducing transmission overload and avoiding the tamping hammer falling from a high altitude and injuring personnel when the equipment is damaged due to overload.

[0022] Other advantages, objectives and features of the present application will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the installation of the double-link coupling of the present application on the tamping equipment.

[0024] Figure 2 This is a schematic diagram of the structure of the double-link coupling welding connection of the present application.

[0025] Figure 3 For this application Figure 2 Separation diagram of the front flange, rear flange and dust baffle.

[0026] Figure 4 This is a schematic diagram of the structure of the double-link coupling of the present application fixed by fasteners.

[0027] Figure 5 For this application Figure 4 Separation diagram of the front flange, rear flange and dust baffle.

[0028] Figure 6 This is a schematic diagram of the flange (top) and dust baffle (bottom) structure of this application.

[0029] Figure 7 This is a schematic diagram of the installation of the gear coupling of the present application on the tamping equipment.

[0030] In the figure: 1. primary reducer; 2. secondary reducer; 3. eccentric assembly; 4. tamping hammer; 5. connecting shaft; 6. inner ring gear; 7. gear shaft; 8. front end flange; 9. rear end flange; 10. nylon rod pin shaft; 11. dust baffle; 12. bushing; 13. waistcoat. DETAILED DESCRIPTION

[0031] The following will be combined with the attached examples of the present application Figure 1-7 , the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0032] In order to solve the problems existing in the prior art, the present embodiment provides a double-link coupling for ramming coke ovens, including two fixedly connected inner gear rings 6, each of which is meshed with a gear shaft 7, and each of the two inner gear rings 6 is fixed with a front end flange 8 at the opposite ends of the two inner gear rings 6, and each of the two gear shafts 7 is fixed with a rear end flange 9, and the front end flange 8 and the rear end flange 9 are detachably connected.

[0033] Principle details of this embodiment:

[0034] The present embodiment provides a double-link coupling for tamping coke ovens, including a connecting shaft 5. An inner gear ring 6 is fixed at both ends of the connecting shaft 5, and a gear shaft 7 is meshed in the two inner gear rings 6. The two inner gear rings 6 and the two gear shafts 7 together constitute a two-stage gear coupling. The two gear shafts 7 are respectively connected to the output end of the primary reducer 1 and the input end of the secondary reducer 2. The input end of the primary reducer 1 is connected to the motor. The output end of the secondary reducer 2 is connected to a tamping hammer 4 via an eccentric wheel group.

[0035] A front end flange 8 is fixed to the opposite ends of the two inner gear rings 6, and a rear end flange 9 is fixed to the two gear shafts 7. The front end flange 8 and the rear end flange 9 are detachably connected via a connecting piece.

[0036] When in use, the motor provides power to the primary reducer 1, and the power is transmitted to the secondary reducer 2 via the two-stage gear coupling. The output end of the secondary reducer 2 drives the tamping hammer 4 to move vertically back and forth via the eccentric wheel group.

[0037] During the power transmission process, since the front flange 8 is fixedly connected to the inner gear ring 6 and the rear flange 9 is fixedly connected to the gear shaft 7, the front flange 8 and the gear shaft 7 are detachably connected via a connecting piece. The front flange 8 is connected to the rear flange 9, thereby diverting the force load of the teeth between the gear shaft 7 and the inner gear ring 6, that is, the connection strength between the inner gear ring 6 and the gear shaft 7 can be strengthened; when the inner gear ring 6 or the gear shaft 7 has broken teeth, the front flange 8 and the rear flange 9 can still stably connect the inner gear ring 6 and the gear shaft 7, and transmit power, thereby improving the stability of power transmission. In addition, due to the existence of two sets of rear flanges 9, the gear coupling is embedded between the two rear flanges 9, which limits the gear coupling, reduces the generation of lateral load, and thus reduces transmission overload, and avoids the tamping hammer 4 from falling from a high altitude and injuring personnel when the equipment is damaged due to overload.

[0038] According to the above principle, this device has multiple usage scenarios:

[0039] The first type: single kinetic energy transmission. The front flange 8 and the rear flange 9 are not set or connected. At this time, the power is transmitted only by the inner gear ring 6 and the gear shaft 7 in the gear coupling. At this time, the transmission load is concentrated on the teeth, which is very easy to cause wear and tooth collapse.

[0040] The second type: dual kinetic energy transmission. The front flange 8 and the rear flange 9 are tightly connected. This disperses the moment at the joint, reduces the force load on the teeth, and reduces the material loss rate of the teeth, which can not only improve the operating stability of the equipment, but also increase the service life of the equipment. This method can also be called one transmission and one protection.

[0041] The third type: single kinetic energy transmission after tooth collapse. Under the premise that the front flange 8 and the rear flange 9 are tightly connected, when tooth collapse occurs, the torque is borne by the connecting parts between the front flange 8 and the rear flange 9 to continue power transmission. In this case, although the connecting parts fully bear the load and are prone to breakage after long-term use; however, compared with the teeth hidden in the inner gear ring 6, which need to be completely disassembled after damage, the connecting parts are exposed to the outside, which has a larger disassembly and installation space, and the disassembly and assembly operations are more convenient and more efficient. Therefore, when a tooth collapse problem occurs, you can choose not to repair the teeth and continue to use it. When there is a problem with the connecting parts, just replace the connecting parts. Connectors are cheaper, and this method is more cost-effective.

[0042] In a further embodiment of the present invention, dust baffles 11 are detachably mounted on opposite ends of the two rear flanges 9. The dust baffles 11 are used for sealing protection to prevent flying dust from penetrating into the transmission part, especially the tooth meshing part, thereby protecting the lubrication system and grease from being contaminated by coal powder.

[0043] In this embodiment, the dust baffle 11 is fixed to the rear end flange 9 via fasteners, such as countersunk screws.

[0044] In a further embodiment of the present invention, the front flange 8 and the rear flange 9 are both pin flanges, and the front flange 8 and the rear flange 9 are plugged in via a nylon rod pin shaft 10. The load diverted from the inner gear ring 6 and the gear shaft 7 is borne by the nylon rod pin shaft 10. The nylon rod pin shaft 10 is simple to manufacture, low in cost, and easy to replace.

[0045] In a further embodiment of the present invention, two specific structures are provided in which the front end flange 8, the rear end flange 9, the inner gear ring 6, and the gear shaft 7 are fixedly connected:

[0046] The first method: the front flange 8 and the rear flange 9 are welded to the outer wall of the inner gear ring 6 and the gear shaft 7 respectively. The front flange 8 and the rear flange 9 are fixed to the inner gear ring 6 and the gear shaft 7 respectively, so as to realize the fixed connection between the front flange 8 and the rear flange 9 and the inner gear ring 6 and the gear shaft 7. However, after the connection is made in this way, when the tooth collapse problem occurs, the transmission connection can only be carried out by the nylon rod pin shaft 10.

[0047] The second type: refer to the attached Figure 4 , Attachment Figure 5As shown, the front flange 8 and the rear flange 9 are respectively welded with a sleeve 12 and a shoulder 13, the inner diameter of the sleeve 12 matches the outer diameter of the inner gear ring 6, and the inner diameter of the shoulder 13 matches the outer diameter of the shaft end of the gear shaft 7. The sleeve 12 and the shoulder 13 are provided with a plurality of grooves in an annular array, and the outer walls of the inner gear ring 6 and the gear shaft 7 are provided with threaded holes corresponding to the grooves, so that the sleeve 12 and the inner gear ring 6, and the shoulder 13 and the gear shaft 7 are connected through fasteners. The fastener connection can not only make the front flange 8, the rear flange 9 and the inner gear ring 6 and the gear shaft 7 stably connected, but also make them detachable and replaceable. In this way, when broken teeth occur, they can be disassembled and replaced; or when a transmission part is damaged, it can be replaced alone.

[0048] In a further embodiment of the present invention, the front flange 8, the rear flange 9 and the dust baffle 11 are all divided into a plurality of petals, which can be disassembled and reassembled. The gear shaft 7 does not need to be removed during disassembly and assembly, making disassembly and assembly more convenient.

[0049] In a further embodiment of the present invention, sealing gaskets are provided between the front flange 8 and the rear flange 9, and between the inner wall of the dust baffle 11 and the gear shaft 7, so as to further improve the airtightness between the transmission components.

[0050] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and application concept of the present application, which should be covered by the protection scope of the present application.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0052] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A double-link coupling for ramming coke ovens, characterized in that: The invention comprises two fixedly connected inner gear rings (6), each of which is meshed with a gear shaft (7), a front end flange (8) being fixed to opposite ends of the two inner gear rings (6), a rear end flange (9) being fixed to the two gear shafts (7), and the front end flange (8) and the rear end flange (9) being detachably connected.

2. A double-link coupling for tamping coke oven according to claim 1, characterized in that: Dust baffles (11) are detachably mounted on opposite ends of the two rear end flanges (9).

3. A double-link coupling for tamping coke oven according to claim 1, characterized in that: The front end flange (8) and the rear end flange (9) are both pin flanges, and the front end flange (8) and the rear end flange (9) are plugged in via a nylon rod pin shaft (10).

4. A double-link coupling for tamping coke oven according to claim 3, characterized in that: The front end flange (8) and the rear end flange (9) are respectively welded to the inner gear ring (6) and the outer wall of the gear shaft (7).

5. A double link coupling for tamping coke oven according to claim 3, characterized in that: A shaft sleeve (12) and a shoulder (13) are welded to the front end flange (8) and the rear end flange (9), respectively. The shaft sleeve (12), the shoulder (13) and the corresponding inner gear ring (6) and the gear shaft (7) are connected via fasteners.

6. A double-link coupling for tamping coke oven according to claim 2, characterized in that: The front end flange (8), the rear end flange (9) and the dust baffle (11) are all divided into a plurality of petals.

7. A double-link coupling for tamping coke oven according to claim 6, characterized in that: Sealing gaskets are provided between the front flange (8), the rear flange (9), the inner wall of the dust baffle (11) and the gear shaft (7).

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