A sintering machine trolley

Abstract

The present application provides a sintering machine trolley, comprising a trolley body, end bars mounted on the trolley body and rollers, the end bars are detachably connected with the trolley body through spring pin mechanisms, and the rollers are bearing embedded rollers in a modular assembly form. The present application improves the fixing and mounting mode of the end bars and the structure form and mounting mode of the rollers, overcomes the defects of the complex mounting structure of the end bars and the rollers in the traditional trolley, and the difficulty in mounting and detaching, makes the mounting and detaching of the end bars and the rollers more convenient and fast, and the structure is compact and reasonable, and easy to maintain.

Description

A sintering machine trolley Technical Field

[0001] This invention belongs to the field of iron ore powder sintering process equipment, specifically a sintering machine trolley with a new type of end grate bar and trolley rollers. Background Technology

[0002] The sintering machine is the main equipment in a sintering plant for processing iron ore powder through the sintering process, and the trolley is the core operating component of the sintering machine. Generally, the main vulnerable parts of the sintering machine trolley are firstly, the end grate bars, and secondly, the rollers. Traditional installation structures use welding, bolts, or other methods to fix the end grate bars and rollers to the trolley. When the end grate bars or rollers need replacement due to failure, special tools or disassembly equipment are required, increasing the difficulty and complexity of disassembly. Therefore, improving these issues is crucial to ensuring the stable operation of the sintering machine trolley, thus requiring a new type of sintering machine trolley to address this problem. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this invention provides a sintering machine trolley. By improving the fixing and installation method of the end grate bars and the structure and installation method of the rollers, it overcomes the defects of traditional trolleys, such as complex installation structure of end grate bars and rollers, and difficulty in installation and disassembly. This makes the installation and disassembly of end grate bars and rollers more convenient and quick, with a compact and reasonable structure that is easy to maintain.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows:

[0005] A sintering machine trolley includes a trolley body and end grates and rollers mounted on the trolley body. The end grates are detachably connected to the trolley body via a spring pin mechanism, and the rollers are bearing-embedded rollers in a modular assembly form.

[0006] As a further embodiment of the present invention, the spring pin mechanism includes a pin and a retainer; the retainer consists of a horizontal plate and a vertical plate connected to the tail end of the horizontal plate, the head end of the horizontal plate is connected to the side plate of the trolley body, the vertical plate has a shaft hole a, the side plate of the trolley body has a shaft hole b, and the middle part of the end grate has a shaft hole c. The three shaft holes a, b, and c are concentric, and the pin is horizontally and retractably inserted into the three concentric shaft holes.

[0007] As a further embodiment of the present invention, each side of the middle part of the pin body of the pin is connected to a trunnion perpendicular to the pin body. When the pin is inserted into the three shaft holes, the trunnion abuts against the shaft hole b of the trolley body side plate.

[0008] As a further embodiment of the present invention, the spring pin mechanism further includes a spring sleeved on the pin, with both ends of the spring connected to one side of the trunnion and one side of the upright plate, respectively.

[0009] As a further embodiment of the present invention, a slot baffle extending in the direction of the pin body is connected to the horizontal plate of the card holder. When the pin is pulled out from the three shaft holes, the slot baffle abuts against the other side of the trunnion.

[0010] As a further embodiment of the present invention, a hand pull ring is provided at the tail end of the pin.

[0011] As a further embodiment of the present invention, the bearing-embedded roller includes a roller, a shaft, a bushing, and a plurality of rolling elements; one end of the shaft is connected to the trolley body, and the other end is connected to the bushing, with the middle of the bushing communicating with the middle of the shaft to form a passage; the bushing is composed of a pair of split structure bushings a and b, which are connected by tenon and mortise or by Z-shaped interlocking; each of the outer walls of bushings a and b has a raceway, and the plurality of rolling elements are respectively arrayed in the two raceways; the roller is fitted outside the bushing and its inner wall is in rolling contact with the plurality of rolling elements.

[0012] As a further embodiment of the present invention, the bushings a and b are formed with the roller through a shaping process to form a rolling groove, and the rolling groove is fully equipped with a plurality of rolling elements arranged in a cross shape.

[0013] As a further embodiment of the present invention, bushing a and bushing b are respectively provided with a wheel end seal at both ends of the roller.

[0014] As a further embodiment of the present invention, an end cap is provided at the outer end of the bushing, and an oil hole communicating with the middle passage of the bushing is provided on the end cap.

[0015] The beneficial effects of this invention include:

[0016] The end grate bars are detachably connected to the trolley body via a spring pin mechanism. The rollers are modularly assembled bearing-embedded rollers, overcoming the shortcomings of traditional trolley end grate bar and roller installation structures, such as complex structure and difficulty in installation and disassembly. The end grate bars are detachably connected to the trolley body via a spring pin mechanism, making maintenance and replacement of the end grate bars more convenient. Through simple operation, maintenance and replacement can be easily carried out, improving the maintainability and reliability of the equipment. The rollers are modularly assembled bearing-embedded rollers, making the rollers easier to install and replace. The use of modular components can improve assembly efficiency and reduce downtime, thereby improving production efficiency.

[0017] The concentric arrangement of the shaft holes on the card seat, the trolley body side panel, and the end grate bars allows the pins in the spring pin mechanism to be precisely and horizontally retractably inserted into the three shaft holes, ensuring the accuracy and consistency of the installation position and angle of the end grate bars, forming a solid connection, making the installation and disassembly of the end grate bars flexible and easy, with a simple structure and high assembly efficiency.

[0018] The pin body is connected to a trunnion perpendicular to the pin body. When the pin is inserted into the three shaft holes, the trunnion abuts against the shaft hole of the trolley body panel, ensuring a stable connection between the pin and the trolley body and preventing the pin from shifting inward during operation, thus enhancing the stability and reliability of the entire structure. A spring is fitted on the pin between the trunnion and the upright plate. Under the action of spring tension, the position of the pin can be further stabilized, preventing the pin from moving and providing a certain buffering effect. The slot baffle provides additional support and fixation when the pin is pulled out into place. A pull ring is provided at the end of the pin for easy insertion and removal.

[0019] The combined design of rollers, shafts, bushings, and rolling elements in the bearing-embedded roller structure provides smooth rolling motion. A central connection between the shaft and bushing creates a passageway, allowing for the efficient transfer of lubricant or bearing oil. The bushing consists of two separate structures, bushing a and bushing b, connected by mortise and tenon joints or a Z-shaped interlocking structure. This facilitates easier installation, maintenance, and replacement. The separate bushing structure improves assembly efficiency and reduces equipment downtime. Each bushing a and bushing b has a raceway on its outer wall, with multiple rolling elements arrayed within each raceway. This raceway array design balances the load, provides more support area, distributes the roller load, and improves rolling smoothness.

[0020] The bushings a and b are machined to form rolling grooves with the rollers. These rolling grooves are filled with multiple rolling elements arranged in a cross pattern, which provide additional support and rolling guidance to enhance the connection between the rollers and bushings and ensure smooth rolling motion. The use of rolling elements also reduces friction and wear between the rollers and bushings, improving the service life of the rollers. Both ends of bushings a and b are equipped with wheel end seals, which effectively prevent dust, moisture and other impurities from entering the structure and protect the rollers and rolling elements from external environmental pollution and damage. The outer ends of the bushings are equipped with end caps, and oil holes communicating with the central passage of the bushing are opened on the end caps to facilitate lubrication of the structure and prevent external impurities from entering the bushings. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the sintering machine trolley of the present invention;

[0022] Figure 2 is a schematic diagram of the pin state of the spring pin mechanism in this invention.

[0023] Figure 3 is a schematic diagram of the spring pin mechanism structure in the present invention in the pin-pulling state.

[0024] Figure 4 is a schematic diagram of the bearing-embedded roller structure in this invention.

[0025] Figure 5 is a schematic diagram of the two-distribution arrangement structure of the rolling elements in Embodiment 1 of the present invention.

[0026] In the diagram: 1. Trolley body; 2. End grate bars; 3. Spring pin mechanism; 4. Bearing-embedded rollers;

[0027] 3.1 Pin; 3.2 Spring; 3.3 Socket; 3.4 Trunnion; 3.5 Slot baffle; 3.6 Hand pull ring;

[0028] 4.1 Roller; 4.2 Shaft; 4.3 Bushing; 4.4 Rolling element 1; 4.5 Rolling groove; 4.6 Wheel end seal; 4.7 End cover. Detailed Implementation

[0029] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "vertical," "horizontal," "head," and "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "one" and "two" are only used to distinguish components and should not be construed as indicating or implying relative importance.

[0031] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Example 1

[0033] A sintering machine trolley includes a trolley body 1, end grate bars 2, spring pin mechanism 3, and bearing-embedded rollers 4. The side plate of the trolley body 1 is provided with shaft holes b, and the middle part of the end grate bars 2 is provided with shaft holes c.

[0034] As shown in Figures 2 and 3, the spring pin mechanism 3 includes a pin 3.1, a spring 3.2, and a retaining seat 3.3. The retaining seat 3.3 has a shaft hole a at its tail end, with shaft holes a, b, and c being concentric. The retaining seat 3.3 is fixed to the side panel of the trolley body 1. The tail of the pin 3.1 has a circular pull ring 3.6 structure, with trunnions 3.4 on both sides of the middle, forming a cross structure. The pin 3.1 passes through the concentric shaft holes of the retaining seat 3.3, the side panel of the trolley body 1, and the end grate 2. The spring 3.2 passes through the pin 3.1, with one end abutting against the tail end of the retaining seat 3.3 and the other end abutting against one side of the cross-shaped trunnion 3.4 of the pin 3.1, thus limiting the movement of the spring 3.2 at both ends. Under the action of spring tension, the other side of the cross-shaped trunnion 3.4... The pin 3.1 is inserted into the shaft hole c of the end grate 2 at the shaft hole b of the side plate of the trolley body 1, locking the end grate 2. When the end grate 2 needs to be removed, manually pull the hand ring 3.6 to pull the pin 3.1 outward. The spring 3.2 is compressed between the cross structure trunnion 3.4 of the pin 3.1 and the tail end plate of the card seat 3.3 until the cross structure trunnion 3.4 retracts to the slot baffle 3.5 provided on the card seat 3.3. Then, by rotating the hand ring 3.6, the pin 3.1 is rotated, so that the cross structure trunnion 3.4 of the pin 3.1 is locked on the slot baffle 3.5, so that the pin 3.1 is completely pulled out of the end grate 2, unlocking the fixation of the end grate 2.

[0035] As shown in Figure 4, the bearing-embedded roller 4 includes a roller 4.1, a shaft 4.2, a bushing 4.3, rolling elements 4.4 and 4.5, a wheel end seal 4.6, and an end cap 4.7. The bushing 4.3 of the bearing-embedded roller 4 adopts a pair of split structures, bushing a and bushing b. Bushing a and bushing b can be engaged with tenons or Z-shaped structures and form a passage with the oil hole opened on the shaft 4.2. The roller 4.1 is fitted onto the bushing 4.3. Each of the two split structures of the bushing 4.3 has a raceway. Multiple rolling elements 4.4 are arrayed in the raceway cavity formed by the roller 4.1 and the bushing 4.3. In addition, the two split structures of the bushing 4.3 and the roller 4.1 are modified to form a rolling groove 4.5. The rolling groove 4.5 is filled with multiple rolling elements 2 arranged in a cross pattern. The two split structures of the bushing 4.3 are respectively provided with a wheel end seal 4.6 at both ends of the roller 4.1. Thus, the roller 4.1, bushing 4.3, rolling element 1 4.4, rolling element 2 and wheel end seal 4.6 form a modular assembly, which has the dual functions of bearing and wheel. This modular assembly structure is fitted onto the shaft 4.2. The end cover 4.7 is connected to the bushing 4.3 by bolts. The end cover 4.7 has an oil hole. The shaft 4.2 is connected to the trolley body.

[0036] In the above embodiment, the bushing 4.3 of the bearing-embedded roller 4 adopts a pair of split structures, which can be engaged by tenon or mortise and tenon or Z-shaped structure, and has the following advantages:

[0037] Easy to install and disassemble: Due to the split structure, it is easier to install and disassemble, which greatly simplifies the process of maintaining and replacing bushings, reducing maintenance time and labor costs;

[0038] Flexible adjustment and adaptability: The split structure allows the size and shape of the bushing to be adjusted relatively independently to adapt to different needs and installation spaces, improving the flexibility and versatility of the product;

[0039] Increased structural strength: By using mortise and tenon or Z-shaped interlocking structures, the connection of the bushing becomes more robust and stable, which can improve the structural strength of the bushing and increase the load-bearing capacity and durability of the roller;

[0040] Reduced component costs: The split structure saves on material and manufacturing costs by manufacturing and assembling two smaller components separately. In addition, the adjustable bushings reduce unnecessary machining steps, further reducing overall costs.

[0041] In the above implementation scheme, the rolling groove 4.5 is fully equipped with multiple rolling elements arranged in a cross-shaped pattern, as shown in Figure 5. This arrangement offers the following advantages: reduced friction, resulting in smoother sliding; the cross-shaped rolling elements can withstand larger loads in multiple directions because they can evenly distribute the load and provide support through multiple rolling elements; the cross-shaped rolling element design improves the accuracy and rigidity of the rotating structure, reduces the gap between the rolling elements and the raceway, thereby improving the accuracy and rotational precision of the rolling structure; the distributed load of the cross-shaped rolling elements helps reduce fatigue and deterioration of the rolling structure, and by distributing the load across multiple rolling elements, the service life of the rolling structure can be extended.

[0042] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A sintering machine trolley, comprising a trolley body (1) and end grates (2) and rollers mounted on the trolley body (1), characterized in that, The end grate bar (2) is detachably connected to the trolley body (1) via a spring pin mechanism (3). The roller is a bearing-embedded roller (4) in a modular assembly form. The spring pin mechanism (3) includes a pin (3.1) and a retainer (3.3). The retainer (3.3) consists of a horizontal plate and a vertical plate connected to the end of the horizontal plate. The first end of the horizontal plate is connected to the side plate of the trolley body (1). The vertical plate has a shaft hole a, the side plate of the trolley body (1) has a shaft hole b, and the end grate bar (2) has a shaft hole c in the middle. The shaft holes a, b, and c are concentric. The pin (3.1) is horizontally and retractably inserted into the three concentric shaft holes. The pin body of the pin (3.1) is connected to a trunnion (3.4) with a cross structure perpendicular to the pin body on each side of the middle part of the pin body. When the pin (3.1) is inserted into the three shaft holes, the trunnion (3.4) abuts against the pin. The trolley body (1) has a shaft hole b on the side panel; the spring pin mechanism (3) also includes a spring (3.2) sleeved on the pin (3.1), the two ends of which are connected to one side of the trunnion (3.4) and one side of the upright plate respectively; the horizontal plate of the card seat (3.3) is connected to a slot baffle (3.5) extending towards the pin body of the pin (3.1), when the pin (3.1) is pulled out from the three shaft holes into place, the slot baffle (3.5) 5) It abuts against the other side of the trunnion (3.4); the tail end of the pin (3.1) is provided with a rotatable hand pull ring (3.6); the bearing embedded roller (4) includes a roller (4.1), a shaft (4.2), a bushing (4.3), and multiple rolling elements (4.4); one end of the shaft (4.2) is connected to the trolley body (1), and the other end is connected to the bushing (4.3), and the middle part of the bushing (4.3) is connected to the middle part of the shaft (4.2) to form a passage.

2. A sintering machine trolley according to claim 1, characterized in that, The bushing (4.3) consists of a pair of split structure bushings a and b. Bushings a and b are connected by tenon and mortise or by Z-shaped interlocking. Each bushing a and bushing b has a raceway on its outer wall. Multiple rolling elements (4.4) are arrayed in the two raceways. The roller (4.1) is fitted on the outside of the bushing (4.3) and its inner wall is in rolling contact with the multiple rolling elements (4.4).

3. A sintering machine trolley according to claim 2, characterized in that, The bushings a and b are formed into a rolling groove (4.5) between the roller (4.1) and the roller (4.1). The rolling groove (4.5) is filled with multiple rolling elements arranged in a cross shape.

4. A sintering machine trolley according to claim 2, characterized in that, The bushings a and b are respectively provided with a wheel end seal (4.6) at both ends of the roller (4.1).

5. A sintering machine trolley according to any one of claims 2-4, characterized in that, An end cap (4.7) is provided at the outer end of the bushing (4.3), and an oil hole is provided on the end cap (4.7) that communicates with the passage in the middle of the bushing (4.3).

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