Transmission device of submerged chain conveyor

Abstract

The invention relates to the technical field of slag salvaging machines, in particular to a slag salvaging machine transmission device which comprises a chain mechanism which comprises a horizontal transmission part, a vertical transmission part arranged on one side of the horizontal transmission part and an inclined slag salvaging part arranged on the other side of the horizontal transmission part. The guide wheel mechanism comprises a connecting shaft structure, a transmission wheel structure arranged on the outer wall of the connecting shaft structure, a baffle structure arranged on the side face of the transmission wheel structure and a bearing structure arranged on the side face of the baffle structure, and the chain of the submerged chain conveyor is driven by a hydraulic dragging device at the top of the machine head and is reversed through guide wheels at all positions. The vertical side of the chain is inserted into the transmission teeth of the guide wheel body, the guide wheel is stressed to rotate to change the overall advancing direction of the chain, so that the chain operation effect is achieved, the bearing is changed to be externally arranged and is arranged on the outer side of the slag conveyor, the working environment of the bearing is greatly improved, and the service life of the bearing is prolonged. If the bearing breaks down, the submerged chain conveyor does not need to drain water.

Description

Technical Field

[0001] The invention relates to the technical field of slag scooping machines, in particular to a slag scooping machine transmission device. Background Art

[0002] The function of the slag scoop system is to collect and cool the bottom slag produced by boiler combustion, and continuously transport the bottom slag from the bottom of the furnace to the slag bin for storage and transportation. At present, the guide wheel commonly used in the slag scoop of power plants has a built-in bearing (the bearing is inside the slag scoop), which is immersed in the slag water for a long time. Its sealing mainly relies on the shaft seal and sealing water to prevent external slag water from entering the bearing. The use effect of this type of seal is unstable. If the shaft seal water pressure is insufficient or the shaft seal water is interrupted during long-term operation, it may cause seal failure and accelerate the damage of the guide wheel bearing.

[0003] In terms of layout, the tail guide wheel is cantilevered on both sides, and a single guide wheel has a large bearing capacity. The oil pressure of the slag picker is 7Mpa during normal operation. The amount of slag is greatly related to the increase in the unit load or the ash content of the coal. When the load is high or the coal quality is poor, the oil pressure of the slag picker rises to 15Mpa. At this time, the bearing capacity of the chain and the guide wheel will increase exponentially. The cantilevered guide wheel is subject to a large shear force, which can easily cause the guide wheel to fall off. Once the guide wheel is damaged, the slag picker must be stopped and the water must be drained for replacement. If necessary, the unit load must be reduced, which affects the unit economy. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a slag scooping machine transmission device, comprising: a chain mechanism, including a horizontal transmission part, a vertical transmission part arranged on one side of the horizontal transmission part, and an inclined slag scooping part arranged on the other side of the horizontal transmission part; and

[0006] The guide wheel mechanism comprises a coupling structure, a transmission wheel structure arranged on the outer wall of the coupling structure, a baffle structure arranged on the side of the transmission wheel structure, and a bearing structure arranged on the side of the baffle structure.

[0007] As a preferred solution of the slag scooping machine transmission device of the present invention, the inclination angle of the inclined slag scooping part is 35°.

[0008] As a preferred solution of the slag scoop transmission device of the present invention, the coupling structure includes an intermediate shaft, and a key groove is provided on the outer wall of the intermediate shaft.

[0009] As a preferred solution of the slag scoop transmission device of the present invention, the transmission wheel structure includes a guide wheel body arranged on the outer wall of the intermediate shaft, and the guide wheel body is connected to the intermediate shaft through a key.

[0010] As a preferred solution of the slag scoop transmission device of the present invention, a locking ring is arranged on the side of the guide wheel body, the locking ring is connected to the guide wheel body through a pin, and a transmission tooth is arranged on the outer wall of the guide wheel body.

[0011] As a preferred solution of the slag scoop transmission device of the present invention, the bearing structure includes a bearing seat, a guide wheel bearing is arranged inside the bearing seat, and baffles are arranged on both sides of the bearing seat.

[0012] As a preferred solution of the slag scoop transmission device of the present invention, a receiving groove is provided on the side of the retaining cover at one end of the bearing seat close to the guide wheel body, and an oil seal retaining ring is provided on the inner wall of the receiving groove.

[0013] As a preferred solution of the slag scoop transmission device of the present invention, the baffle structure includes a connecting ring, and the connecting ring is connected to the intermediate shaft through a pin.

[0014] As a preferred solution of the slag scoop transmission device of the present invention, the outer wall of the connecting ring is provided with a baffle, and the outer wall of the baffle is provided with a positioning hole.

[0015] As a preferred solution of the slag scoop transmission device of the present invention, the number of the transmission wheel structure, the bearing structure and the baffle structure is two, which are arranged at both ends of the coupling structure.

[0016] The beneficial effects of the present invention are as follows: the present invention changes the guide wheel bearing into an external type, and places the bearing on the outside of the slag remover, which greatly improves the working environment of the bearing, thereby extending the service life of the bearing. If the bearing fails, there is no need to drain the slag remover, and the bearing assembly can be directly replaced on the outside, which reduces the difficulty and time of maintenance and improves the economy of the unit. The symmetrical arrangement of the cantilever is changed into an axial end support design, which enhances the load-bearing capacity and improves the stability. A baffle is arranged on the side of the bearing seat to prevent the bottom slag from contaminating the bearing components during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the guide wheel mechanism structure in the present invention.

[0020] Figure 3 It is a two-dimensional assembly diagram of the guide wheel mechanism in the present invention. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Example 1, reference Figures 1 to 3 , is the first embodiment of the present invention, which provides a slag scooping machine transmission device, which includes a chain mechanism 100, including a horizontal transmission part 101, a vertical transmission part 102 arranged on one side of the horizontal transmission part 101 and an inclined slag scooping part 103 arranged on the other side of the horizontal transmission part 101, the horizontal transmission part 101 is a transmission section mainly used for transporting and salvaging the slag body at the bottom of the furnace body, and is arranged at the bottom of the furnace body, the top of the vertical transmission part 102 is connected to the slag discharge port of the boiler, and the end of the inclined slag scooping part 103 is connected to the driving motor, and the inclined slag scooping part 103 drives the slag scooping device to lift and dehydrate the slag and transport it to the slag bin outside the furnace frame for storage; and,

[0025] The guide wheel mechanism 200 includes a coupling structure 201, a transmission wheel structure 202 arranged on the outer wall of the coupling structure 201, a baffle structure 204 arranged on the side of the transmission wheel structure 202, and a bearing structure 203 arranged on the side of the baffle structure 204. The coupling structure 201 provides support for the guide wheels on both sides so that they can work normally. The transmission wheel structure 202 cooperates with the chain mechanism 100 to transmit power, and the baffle structure 204 provides further protection for the bearing structure 203.

[0026] Specifically, the chain of the slag machine is driven by the hydraulic drag device on the top of the machine head, and is changed in direction through the guide wheels at various locations. The vertical side of the chain is inserted into the transmission teeth 202b of the guide wheel body 202a. The guide wheel is rotated under force to change the overall direction of the chain, thereby achieving the effect of chain operation. The bearing is changed to an external type, and the bearing is placed outside the slag machine, which greatly improves the working environment of the bearing and prolongs the service life of the bearing. If the bearing fails, there is no need to drain the slag machine, and the bearing assembly can be directly replaced on the outside, which reduces the difficulty and time of maintenance.

[0027] Example 2, reference Figures 1 to 3 , which is the second embodiment of the present invention. Different from the previous embodiment, the inclination angle of the inclined slag scooping part 103 is 35°, and the coupling structure 201 includes an intermediate shaft 201a, and the outer wall of the intermediate shaft 201a is provided with a keyway 201b.

[0028] Furthermore, the transmission wheel structure 202 includes a guide wheel body 202a arranged on the outer wall of the intermediate shaft 201a, the guide wheel body 202a is connected to the intermediate shaft 201a by a key, a locking ring 202c is arranged on the side of the guide wheel body 202a, the locking ring 202c is connected to the guide wheel body 202a by a pin, and a transmission tooth 202b is opened on the outer wall of the guide wheel body 202a, and the transmission tooth 202b cooperates with the chain.

[0029] Furthermore, the bearing structure 203 includes a bearing seat 203a, a guide wheel bearing 203b is arranged inside the bearing seat 203a, and a cover 203c is arranged on both sides of the bearing seat 203a. A receiving groove 203d is opened on the side of the cover 203c at one end of the bearing seat 203a close to the guide wheel body 202a, and an oil seal ring 203e is arranged on the inner wall of the receiving groove 203d.

[0030] Specifically, the inclination angle of the inclined slag scooping part 103 is the same as that of the salvaging section of the slag scooping machine, providing power for the salvaging section. The locking ring 202c positions the guide wheel body 202a on the shaft to prevent it from axial movement on the intermediate shaft 201a. The cover 203c is arranged on the side of the bearing seat 203a close to the guide wheel body 202a, which can prevent the slag from jumping onto the bearing seat 203a during operation and causing pollution.

[0031] Example 3, reference Figures 1 to 3, which is the third embodiment of the present invention. Different from the previous embodiment, the baffle structure 204 includes a connecting ring 204a, which is connected to the intermediate shaft 201a through a pin, and the connecting ring 204a is fixed to the outer wall of the intermediate shaft 201a. The outer wall of the connecting ring 204a is provided with a baffle 204b, and the baffle 204b is fixedly connected to the connecting ring 204a. A positioning hole 204c is opened on the outer wall of the baffle 204b. The number of the transmission wheel structure 202, the bearing structure 203 and the baffle structure 204 is two, which are arranged at both ends of the connecting shaft structure 201.

[0032] Specifically, the bearing of the original guide wheel is built-in, and its sealing mainly relies on the shaft seal and sealing water. Once the shaft seal water pressure is insufficient or the shaft seal water is interrupted, the seal may fail, and the slag water enters the bearing, causing bearing damage. In addition, the seal and structure of the built-in bearing are complex, and maintenance is difficult. Now the bearing assembly is placed outside the slag scoop machine, and there are only guide wheels and shafts in the slag scoop machine. In this way, only the gap between the slag scoop machine housing and the shaft needs to be sealed, and the sealing structure is simplified to a flexible seal, which greatly simplifies the tail guide wheel structure. At the same time, the working environment of the external bearing is good, there is no risk of slag water infiltration, and the service life of the bearing is greatly extended. At the same time, a baffle 204b is set on the side of the bearing to further prevent the slag from contaminating the bearing.

[0033] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0034] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0035] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A slag scoop transmission device, characterized in that: include, The chain mechanism (100) comprises a horizontal transmission part (101), a vertical transmission part (102) arranged on one side of the horizontal transmission part (101), and an inclined slag scooping part (103) arranged on the other side of the horizontal transmission part (101); and, The guide wheel mechanism (200) comprises a shaft connection structure (201), a transmission wheel structure (202) arranged on the outer wall of the shaft connection structure (201), a baffle structure (204) arranged on the side of the transmission wheel structure (202), and a bearing structure (203) arranged on the side of the baffle structure (204).

2. The slag scoop transmission device according to claim 1, characterized in that: The inclination angle of the inclined slag scooping part (103) is 35°.

3. The slag scoop transmission device according to claim 2, characterized in that: The shaft coupling structure (201) comprises an intermediate shaft (201a), and a keyway (201b) is provided on an outer wall of the intermediate shaft (201a).

4. The slag scoop transmission device according to claim 3, characterized in that: The transmission wheel structure (202) comprises a guide wheel body (202a) arranged on the outer wall of the intermediate shaft (201a), and the guide wheel body (202a) is connected to the intermediate shaft (201a) via a key.

5. The slag scoop transmission device according to claim 4, characterized in that: A locking ring (202c) is provided on the side of the guide wheel body (202a), the locking ring (202c) is connected to the guide wheel body (202a) via a pin, and a transmission tooth (202b) is provided on the outer wall of the guide wheel body (202a).

6. The slag scoop transmission device according to claim 5, characterized in that: The bearing structure (203) comprises a bearing seat (203a), a guide wheel bearing (203b) is arranged inside the bearing seat (203a), and blocking covers (203c) are arranged on both sides of the bearing seat (203a).

7. The slag scoop transmission device according to claim 6, characterized in that: A receiving groove (203d) is provided on the side of the stop cover (203c) at one end of the bearing seat (203a) close to the guide wheel body (202a), and an oil seal retaining ring (203e) is provided on the inner wall of the receiving groove (203d).

8. The slag scoop transmission device according to claim 7, characterized in that: The baffle structure (204) comprises a connecting ring (204a), and the connecting ring (204a) is connected to the intermediate shaft (201a) via a pin.

9. The slag scoop transmission device according to claim 8, characterized in that: The outer wall of the connecting ring (204a) is provided with a blocking piece (204b), and the outer wall of the blocking piece (204b) is provided with a positioning hole (204c).

10. The slag scoop transmission device according to claim 9, characterized in that: The number of the transmission wheel structure (202), the bearing structure (203) and the baffle structure (204) is two, and they are arranged at both ends of the shaft connection structure (201).

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