Anti-arching device for sintering machine trolley
By using a combined structure of guide blocks and rigid tracks on the sintering machine trolley, the problem of trolley arching is solved, the stability of trolley operation and the extension of equipment life are achieved, and the maintenance cost is reduced.
Patent Information
- Application Number
- CN202422345424.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-25
AI Technical Summary
During operation, sintering machine trolleys are prone to arch due to the friction torque exceeding their own weight, causing trolleys to mount shoulders, causing equipment accidents and wear, and affecting production efficiency.
The combined structure of guide block and rigid track is adopted. The design of guide blocks enables the trolley to automatically return to position under gravity to prevent arches and adjust surface contact to line contact to ensure stable operation of the trolley.
Effectively prevent trolleys from arching, improve operational stability, extend equipment service life, reduce maintenance costs, and reduce production fluctuations.
Smart Images
Figure CN223106691U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of smelting equipment, and particularly relates to an anti-arching device for a sintering machine trolley. Background Technique
[0002] The sintering trolley is the main equipment for the production of sintered ore by a belt-type sintering machine. The sintering main machine mainly consists of upper and lower guide rails, front and rear star wheels, curved rails, a transmission mechanism, and trolleys arranged on the upper and lower guide rails. The rotation of the trolley at the tail star wheel is guided by the star wheel teeth and the driving force is transmitted. When the trolley turns past the center of the tail star wheel and is just approaching the horizontal state on the lower guide rail (i.e., the return lane), the tooth plate of the tail star wheel pushes the trolley to continue moving forward. The front working surface of the tooth plate contacts the rear wheel axle sleeve of the trolley and provides a thrust. This thrust causes the trolleys to squeeze each other to generate a horizontal component force to push the trolley forward, and at the same time generates an upward frictional component force. When the torque generated by this frictional component force is greater than the self-weight of the trolley, the rear part of the trolley will be lifted by the tooth plate, and the front end surface of the subsequent trolley contacts and squeezes the rear end surface of the previous trolley so that it cannot fall. In this way, the phenomenon of shoulder arching occurs repeatedly. The arching height is generally 20 - 50 mm. When the squeezing torque of the arching trolley becomes smaller than the self-weight of the trolley during the operation towards the head, the arching trolley will instantaneously fall (i.e., hit the rail) to generate a huge impact, causing damage to the trolley bearing or cracks or fractures in the vehicle body, resulting in equipment accidents, and also causing uneven wear on the end surface, increasing the air leakage rate, reducing the production efficiency, and at the same time causing burning and deformation of the side plate. Content of the Utility Model
[0003] The purpose of the utility model is to provide an anti-arching device for a sintering machine trolley. The anti-arching device has a simple structure, is convenient to install, has a low manufacturing cost, is convenient for operation and adjustment, can effectively ensure the stability of the trolley operation in sintering production, greatly reduces the maintenance cost of the equipment, and effectively extends the service life of the trolley bearing, wheels, rails, etc. without human intervention.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] An anti-arching device for a sintering machine trolley, the sintering machine has a tail star wheel, a lower guide rail and a trolley, the trolley can move on the lower guide rail after passing through the tail star wheel, the anti-arching device includes a guide block and a rigid rail. Among them, the lower guide rail includes a front section and a rear section, both ends of the rigid rail are respectively connected to the front section and the rear section, the guide block is arranged on the rigid rail, the guide block includes an uphill section, a horizontal section and a downhill section, and the uphill section, the horizontal section and the downhill section are sequentially connected along the moving direction of the trolley.
[0006] Further, in the above anti-arching device for the sintering machine trolley, the horizontal section is of a cuboid structure, the length of the horizontal section is 500 mm, the tops of the uphill section and the downhill section are both in the same plane as the upper surface of the horizontal section, the vertical distance between the upper surface of the horizontal section and the upper surface of the rigid track is 50 mm, the widths of the uphill section and the downhill section are both the same as the width of the horizontal section, the upper surface of the uphill section is an inclined plane, the length of the upper surface of the downhill section is less than the distance between the two wheels of the trolley, the upper surface of the downhill section is an inclined plane, and the length of the upper surface of the downhill section is greater than the distance between the two wheels of the trolley.
[0007] Further, in the above anti-arching device for the sintering machine trolley, the distance between the connection point of the tail star wheel and the lower guide rail and the uphill section is 800 mm.
[0008] Further, in the above anti-arching device for the sintering machine trolley, the length of the uphill section is 1000 mm.
[0009] Further, in the above anti-arching device for the sintering machine trolley, the length of the downhill section is 1500 mm.
[0010] Further, in the above anti-arching device for the sintering machine trolley, the sintering machine has a guide rail base, the lower guide rail is installed on the guide rail base, the guide block and the rigid track are of an integral structure, several fixing pieces are arranged at the bottom of the rigid track, and the fixing pieces are connected to the guide rail base by bolts.
[0011] Further, in the above anti-arching device for the sintering machine trolley, connecting pieces are arranged at both ends of the rigid track, and the connecting pieces are connected to the front section or the rear section by bolts.
[0012] Further, in the above anti-arching device for the sintering machine trolley, when two trolleys pass through the guide block successively, the guide block precisely fine-tunes the contact angles of the two trolleys, enabling the trolley to automatically return to its position under gravity and preventing the trolley from arching.
[0013] Further, in the above anti-arching device for the sintering machine trolley, the materials of the guide block and the rigid track are both 45# steel.
[0014] Further, in the above anti-arching device for the sintering machine trolley, transition fillets are arranged at the joints of the uphill section and the horizontal section and at the joints of the horizontal section and the downhill section, and the radius of the transition fillets is greater than or equal to 3 mm.
[0015] Analysis shows that the present utility model discloses an anti-arching device for a sintering machine trolley. This anti-arching device has a simple structure, low manufacturing cost, and low later maintenance cost, and is convenient and reliable during actual use and maintenance. By adjusting the surface contact of the trolley to line contact, the running stability of the trolley is greatly improved, avoiding production fluctuations caused by the fluctuations of the trolley and the impact of hitting the rail. This anti-arching device is firm and not easily damaged, has a long service life, low maintenance workload, and high reliability during daily operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The schematic diagrams in the specification, which form a part of this application, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. Among them:
[0017] Figure 1 is a schematic structural diagram of a sintering machine according to an embodiment of the present utility model.
[0018] Figure 2 is a schematic structural diagram of the trolley during arching operation and after arching repair according to an embodiment of the present utility model.
[0019] Figure 3 is a schematic structural diagram according to an embodiment of the present utility model.
[0020] Description of the reference numerals: 1 lower guide rail; 2 tail star wheel; 3 trolley; 4 guide block; 5 uphill section; 6 horizontal section; 7 downhill section; 8 rigid rail; 9 front section; 10 rear section. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments. Each example is provided by way of explanation of the present utility model rather than limitation of the present utility model. In fact, those skilled in the art will clearly understand that modifications and variations can be made to the present utility model without departing from the scope or spirit of the present utility model. For example, the features shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present utility model includes such modifications and variations within the scope of the appended claims and their equivalents.
[0022] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and does not require the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "connected", "connected to", and "disposed" used in the present utility model should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component; it can be a wired connection, a radio connection, or a wireless communication signal connection. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.
[0023] One or more examples of the present utility model are shown in the accompanying drawings. The detailed description uses numerical and alphabetical labels to refer to features in the drawings. Similar or like labels in the drawings and the description have been used to refer to similar or like parts of the present utility model. As used herein, terms such as "first", "second", and "third" are used interchangeably to distinguish one component from another and are not intended to indicate the position or importance of individual components.
[0024] As Figures 1 to 3 shown, according to an embodiment of the present utility model, a device for preventing arching of a sintering machine trolley is provided. As Figure 1 shown, the sintering machine has a tail star wheel 2, a lower guide rail 1, and a trolley 3. After passing through the tail star wheel 2, the trolley 3 can move on the lower guide rail 1. The anti-arching device includes a guide block 4 and a rigid rail 8. Among them, the lower guide rail 1 includes a front section 9 and a rear section 10. Both ends of the rigid rail 8 are respectively connected to the front section 9 and the rear section 10. The guide block 4 is disposed on the rigid rail 8. As Figure 3 shown, the guide block 4 includes an uphill section 5, a horizontal section 6, and a downhill section 7. The uphill section 5, the horizontal section 6, and the downhill section 7 are sequentially connected along the moving direction of the trolley 3. The anti-arching device has a simple structure, is easy to install, has a low manufacturing cost, is convenient for operation and adjustment, can well solve the situation of uneven tooth plate thrust of the tail star wheel 2, resulting in arching of the shoulders of the trolley 3, etc., effectively ensures the stability of the operation of the trolley 3, greatly reduces the maintenance cost of the equipment, greatly extends the service life of trolley bearings, wheels, rails, etc., and can be maintained conveniently and reliably.
[0025] Furthermore, the uphill section 5, the horizontal section 6, and the downhill section 7 are of an integral structure. The horizontal section 6 is of a cuboid structure with a length of 500 mm. The tops of the uphill section 5 and the downhill section 7 are both in the same plane as the upper surface of the horizontal section 6. The vertical distance between the upper surface of the horizontal section 6 and the upper surface of the rigid track 8 is 50 mm. The widths of the uphill section 5 and the downhill section 7 are both the same as the width of the horizontal section 6. The upper surface of the uphill section 5 is an inclined plane. The length of the upper surface of the downhill section 7 is less than the distance between the two wheels of the trolley 3. Preferably, the length of the uphill section 5 is 1000 mm. The upper surface of the downhill section 7 is an inclined plane, and the length of the upper surface of the downhill section 7 is greater than the distance between the two wheels of the trolley 3. Preferably, the length of the downhill section 7 is 1500 mm. The distance between the connection point of the tail star wheel 2 and the lower guide rail 1 and the uphill section 5 is 800 mm. As Figure 2 shown, when two adjacent trolleys 3 pass through the guide block 4 successively, the rear wheel of the trolley 3 in the front drops, and the front wheel of the trolley 3 in the back rises, changing the surface contact between the trolleys 3 to line contact. By precisely fine-tuning the contact angle of the two trolleys 3, the guide block 4 enables the trolley 3 to automatically return to its position under the action of gravity, achieving precise adjustment at the 50-mm level without human intervention, preventing the trolley 3 from arching, effectively ensuring the stability of the trolley 3 during operation, and avoiding production fluctuations caused by the fluctuations and rail impacts of the trolley 3. This anti-arching device increases the distance between the trolleys 3, reduces the friction between the trolleys 3, thus playing an anti-arching role, greatly extending the service life of the bearings, wheels, tracks, etc. of the trolley 3, and reducing the equipment maintenance cost.
[0026] Furthermore, the sintering machine has a guide rail base, and the lower guide rail is installed on the guide rail base. The guide block 4 and the rigid track 8 are of an integral structure. A number of fixing pieces are provided at the bottom of the rigid track 8, and the fixing pieces are connected to the guide rail base by bolts. This setting can make the anti-arching device more stable and not easily damaged, with a long service life.
[0027] Furthermore, connection pieces are provided at both ends of the rigid track 8, and the connection pieces are connected to the front section 9 or the rear section 10 by bolts. This setting can facilitate the replacement of the anti-arching device, with a low maintenance workload and high reliability during daily operation.
[0028] Furthermore, the materials of the guide block 4 and the rigid track 8 are both 45# steel. The surface quenching method of 45# steel greatly improves the impact stability of the anti-arching device, and the wear service life exceeds 24 months. When wear occurs, the anti-arching device can also be repaired by on-line surfacing.
[0029] Furthermore, transition rounded corners are provided at the joints between the uphill section 5 and the horizontal section 6 and between the horizontal section 6 and the downhill section 7, and the radius of the transition rounded corners is greater than or equal to 3 mm. This setting can ensure the smooth operation of the trolley 3.
[0030] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:
[0031] An anti-arching device for a sintering machine trolley, the anti-arching device has a simple structure, low manufacturing cost and low later maintenance cost, and is convenient and reliable during actual use and maintenance. By adjusting the surface contact of the trolley 3 to line contact, the running stability of the trolley 3 is greatly improved, and production fluctuations caused by the fluctuations and rail impacts of the trolley 3 are avoided. The anti-arching device is firm and not easily damaged, has a long service life, low inspection and maintenance workload, and high reliability in daily operation.
[0032] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An anti-arching device for a trolley of a sintering machine, the sintering machine having a tail star wheel, a lower guide rail and a trolley, the trolley being able to move on the lower guide rail after passing through the tail star wheel, characterized in that, The anti-arching device includes a guide block and a rigid track. Among them, the lower track includes a front section and a rear section, and both ends of the rigid track are respectively connected to the front section and the rear section. The guide block is arranged on the rigid track. The guide block includes an uphill section, a horizontal section, and a downhill section, and the uphill section, the horizontal section, and the downhill section are connected in sequence along the moving direction of the trolley.
2. The anti-arching device for a sintering machine trolley according to claim 1, characterized in that the horizontal section is of a cuboid structure, and the length of the horizontal section is 500 mm. The top ends of the uphill section and the downhill section are both in the same plane as the upper surface of the horizontal section, and the vertical distance between the upper surface of the horizontal section and the upper surface of the rigid track is 50 mm. The widths of the uphill section and the downhill section are both the same as the width of the horizontal section. The upper surface of the uphill section is an inclined plane, and the length of the upper surface of the downhill section is less than the distance between two wheels of the trolley. The upper surface of the downhill section is an inclined plane, and the length of the upper surface of the downhill section is greater than the distance between two wheels of the trolley.
3. The anti-arching device for a sintering machine trolley according to claim 1, characterized in that the distance between the connection point of the tail star wheel and the lower track and the uphill section is 800 mm.
4. The anti-arching device for a sintering machine trolley according to claim 1, characterized in that the length of the uphill section is 1000 mm.
5. The anti-arching device for a sintering machine trolley according to claim 1, characterized in that the length of the downhill section is 1500 mm.
6. The anti-arching device for a sintering machine trolley according to claim 1, characterized in that the sintering machine has a track base, and the lower track is installed on the track base. The guide block and the rigid track are of an integral structure. A plurality of fixing pieces are arranged at the bottom of the rigid track, and the fixing pieces are connected to the track base by bolts.
7. The anti-arching device for a sintering machine trolley according to claim 1, characterized in that connection pieces are arranged at both ends of the rigid track, and the connection pieces are connected to the front section or the rear section by bolts.
8. The anti-arching device for a sintering machine trolley according to claim 1, characterized in that When two trolleys pass through the guide block successively, the guide block can accurately fine-tune the contact angles of the two trolleys, so that the trolley can automatically return to its position under gravity and prevent the trolley from arching.
9. The anti-arching device for a sintering machine trolley according to claim 1, characterized in that the materials of the guide block and the rigid track are both 45# steel.
10. The anti-arching device for a sintering machine trolley according to claim 1, characterized in that transition rounded corners are arranged at the joints of the uphill section and the horizontal section and at the joints of the horizontal section and the downhill section, and the radius of the transition rounded corners is greater than or equal to 3 mm.