A combined cylindrical self-lubricating gear for a roasting machine star wheel

Abstract

The present invention provides a combined cylindrical self-lubricating gear of a roasting machine star wheel, comprising a tooth plate and gears mounted on the tooth plate, the tooth plate comprising a tooth plate base and a plurality of tooth plate columns, two gears being mounted on the left and right sides of the tooth plate columns; an oil storage channel is opened on the gear teeth along the outer contour from the top to the bottom, and multiple oil outlet channels connected to and passing through the oil storage channel are opened in parallel on the gear teeth from the top to the bottom, the outer port of the oil outlet channel is connected to the semicircular hole opening on the outer contour of the gear teeth, a spring is installed in the oil outlet channel, the semicircular hole is a semi-cylindrical hole structure perpendicular to the gear teeth in the front-back direction, a cylinder is installed inside the semicircular hole, and the semicircular hole opening constrains the cylinder to be tightly connected to the spring in the semicircular hole. The invention solves the problems of long replacement / repair time of the toothed working surface of the star wheel tooth plate during operation and easy deviation in installation, thereby improving the service life of the gear teeth.

Description

Technical Field

[0001] The invention relates to a gear mechanism for a belt roasting machine, in particular to a combined cylindrical self-lubricating gear of a roasting machine star wheel in the field of a pellet belt roasting machine. Background Art

[0002] The pellet belt roasting machine is generally composed of a closed track laid on a steel structure and a series of trolleys that move continuously on the track. The conveying device drives the head star wheel to lift the trolley from the lower track through the head bend to the upper horizontal track, and pushes the front trolley to move toward the tail of the machine. During the movement of the trolley, the feeding device evenly lays the material to be sintered on the trolley, and completes the sintering from the surface to the inside as the trolley moves. The rear trolley flips and unloads at the tail bend, and moves along the horizontal track relying on the jacking action of the rear trolley. When the trolley moves to the head bend, it engages with the rotating head star wheel, passes through the head bend and then turns to the upper horizontal track. The trolley runs one circle to complete a cycle of the working process.

[0003] Obviously, the star wheels at the head and tail of the pellet belt roasting machine are the key components for the trolley to drive and rotate. The star wheels are generally composed of parts such as chain barrels and star wheel tooth plates. The star wheel tooth plates are installed on the spokes on both sides of the chain barrel. At present, during the operation of the pellet belt roasting machine, the star wheels at the head and tail rotate, and the tooth plates of the star wheels mesh with the card wheel bearings of the trolley to push the trolley along the track. The existing pellet belt roasting machines at home and abroad have limited rotation of the card wheel bearings of the trolley due to the operation mode of the trolley. When the star wheel tooth plates mesh, the meshing points are almost always in the same area. In addition, the mass of the materials loaded on the trolley and its own gravity are very large, and the transmission force of the tooth plate is also very large. Under the action of long-term high contact stress and multiple working cycles at the same point, the gear teeth on the trolley star wheel tooth plate are very prone to wear, bonding, pitting and fatigue. Improving the lubrication properties of gear teeth is a difficult problem that needs to be solved urgently in the entire gear design industry. If the lubricating oil cannot be replenished due to an unexpected situation, the temperature of the gear will increase significantly, and serious accidents such as bonding and tooth breakage are very likely to occur.

[0004] At present, the solution to the wear, fatigue and other damage phenomena on the working surface of the star gear plate is mostly to replace the new star gear plate. However, due to the long working time of the star gear plate and the poor working environment, the frequency of wear and deformation is high. Once the card wheel bearing of the trolley is damaged, it is cumbersome and costly to remove the trolley to replace it. In addition, the working environment cannot guarantee the precision requirements of disassembly and installation, which directly affects the production work. Summary of the invention

[0005] In order to solve the problems described in the background technology that the toothed working surface of the existing star gear plate has high replacement cost or long offline repair time after wear and deformation during operation, and is prone to deviation during installation and is not suitable for precision production, the present invention proposes a combined cylindrical self-lubricating gear tooth of a roasting machine star gear. The present invention adopts an assembled connection, and when there is a problem with the side wall of the gear tooth, it can be quickly replaced. At the same time, in view of the wear, bonding, pitting and fatigue damage that the gear teeth are prone to, superhard materials can be used for the side wall of the gear tooth, while other parts can be made of general materials, which can reduce the cost of the entire device. At the same time, a lubrication device can be used on the side wall of the gear tooth to increase the service life of the gear tooth.

[0006] To achieve the above-mentioned purpose, the technical solution of a combined cylindrical self-lubricating gear tooth of a roasting machine star wheel of the present invention includes: a combined cylindrical self-lubricating gear tooth of a roasting machine star wheel, characterized in that: it includes a tooth plate and gear teeth installed on the tooth plate, the tooth plate includes a tooth plate base and a plurality of tooth plate columns, and two gear teeth are installed on the left and right sides of the tooth plate column; an oil storage channel is opened on the gear tooth from the top to the bottom along its outer contour, and multiple oil outlet channels connected to the oil storage channel are opened in parallel from the top to the bottom of the gear tooth, and the external port of the oil outlet channel is connected to the semicircular hole opening on the outer contour of the gear tooth, and a spring is installed in the oil outlet channel, and the semicircular hole is a semi-cylindrical hole structure that is perpendicular to the gear tooth in the front-to-back direction, and a cylinder is installed inside it, and the semicircular hole opening constrains the cylinder to be tightly connected to the spring in the semicircular hole.

[0007] Furthermore, the tooth plate adopts an integrated structure, a blind hole group I is opened on the top of the tooth plate column, a blind hole group II is opened on the side wall, and a completely through double-row hexagonal through hole group I is opened on the front and rear sides; the left and right sides of the tooth plate column are installed with the same gear teeth, which are two left gear teeth and two right gear teeth with symmetrical structure distribution respectively, the two left gear teeth are symmetrical front and back, and the two left gear teeth are opened with a single-row hexagonal through hole group II that is interconnected, and a plurality of T-pin holes are opened in the upper and lower directions on the right side thereof, which are connected to the blind hole group II through T-pins, and the top of the left gear tooth is provided with a countersunk threaded hole I that is connected to the blind hole group I on the top of the tooth plate column through a countersunk bolt, and the bottom of the left gear tooth is opened with two gear countersunk threaded holes II that are interconnected with bolts.

[0008] Furthermore, a central angle θ of a notch formed by the semi-cylindrical hole of the semicircular hole and the side wall of the gear tooth is less than 90°.

[0009] Furthermore, a threaded hole is opened outside the entrance of the oil storage channel at the top of the gear tooth, and the sealing cover is locked and connected to the gear tooth sealing oil storage channel through the threaded hole 23.

[0010] Furthermore, hexagonal prisms are inserted into the hexagonal through hole group I and the hexagonal through hole group II.

[0011] Furthermore, four completely penetrating circular through holes are opened on the corresponding tooth plate base below each tooth plate column, and the circular through holes are symmetrically distributed with respect to the axis of the tooth plate column.

[0012] Furthermore, a tooth plate column I and a tooth plate column II are installed on the tooth plate base, and two left gear teeth and two right gear teeth are installed on the two tooth plate columns.

[0013] Furthermore, the oil storage channel is divided into two symmetrical halves which are respectively arranged on the joint surfaces of the two left gear teeth or the two right gear teeth to form an integral channel.

[0014] The specific installation process of the combined cylindrical self-lubricating gear of the roasting machine star wheel of the present invention is as follows:

[0015] The tooth plate consisting of tooth plate column Ⅰ, tooth plate column Ⅱ and tooth plate base is processed in one piece. Left gear teeth Ⅰ, Ⅱ and right gear teeth Ⅰ, Ⅱ are installed on the left and right sides of tooth plate column Ⅰ and tooth plate column Ⅱ. The middle of the two left gear teeth and the two right gear teeth are connected to the blind hole group 1 on the left and right sides of the tooth plate column with a T-pin, which can enhance the connection strength between the gear teeth and the tooth plate column. The countersunk threaded hole Ⅰ at the top of the left and right gear teeth is connected to the blind hole group Ⅰ at the top of the tooth plate column through a countersunk bolt. A cylinder is installed inside the semicircular hole outside the left and right gear teeth, and then a spring is installed in the oil outlet channel, and the spring and the cylinder are kept in a compressed state.

[0016] Then, the countersunk threaded holes II at the bottom of the two left gear teeth are connected with countersunk bolts, and the countersunk threaded holes II at the bottom of the two right gear teeth are connected with countersunk bolts. A sealing cover is used on the top of the oil storage channel and it is sealed through the threaded hole to prevent the oil from flowing out. Finally, the entire gear tooth is connected to the gear tooth base through the circular through hole on the tooth plate base, and finally the normal operation of the entire gear tooth is realized. In addition, according to the different usage of the gear tooth, a hexagonal prism can be inserted into the hexagonal through hole group I and the hexagonal through hole group II, and the symmetry of the gear tooth structure needs to be ensured.

[0017] After the present invention adopts the above technical solution, the beneficial effects are:

[0018] (1) The components are replaceable, making disassembly, cleaning and maintenance simple and convenient. During use, the side walls of the gear teeth are prone to wear, bonding, pitting and fatigue due to multiple impacts. Superhard materials can be used for the two left and two right gear teeth. When a problem occurs with the gear teeth on one side, it can be quickly replaced, making the gear teeth high in strength, good in wear resistance, high in load-bearing capacity and long in service life;

[0019] (2) An array of cylinders is used on the side wall of the gear teeth. When the gear teeth are moving, the lubricating oil in the oil storage channel is brought out through the cylinder on the side wall of the gear teeth to lubricate the gear teeth, thereby reducing the impact force and temperature of the gear teeth, and ultimately increasing the service life of the entire gear teeth;

[0020] (3) The two left gear teeth and the two right gear teeth are connected through the hexagonal prism, which can reduce the weight of the entire gear teeth. At the same time, hexagonal prisms can be added according to different usage places, so that the gear tooth structure is suitable for different places. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Figure 1 It is a structural diagram of the present invention;

[0023] Figure 2 for Figure 1 The three-dimensional structure diagram of the middle tooth plate;

[0024] Figure 3 for Figure 1 A cross-sectional view of the middle tooth plate;

[0025] Figure 4 for Figure 1 Front view of the middle left gear tooth II;

[0026] Figure 5 for Figure 1 Top view of the middle left gear tooth II;

[0027] Figure 6 It is a cross-sectional view of the present invention.

[0028] In the figure: 1. tooth plate; 2. tooth plate base; 3. tooth plate column I; 4. tooth plate column II; 5. left gear teeth I; 6. left gear teeth II; 7. right gear teeth I; 8. right gear teeth II; 9. hexagonal through hole group I; 10. circular through hole; 11. blind hole group I; 12. countersunk threaded hole I; 13. blind hole group; 14. hexagonal through hole group II; 15. T-pin hole; 16. oil storage channel; 17. oil outlet channel; 18. semicircular hole; 19. side wall; 20. spring; 21. cylinder; 22. countersunk threaded hole II; 23. threaded hole; 24. T-pin. DETAILED DESCRIPTION

[0029] The present invention is a combined cylindrical self-lubricating gear of a roasting machine star wheel. In order to facilitate understanding of the structural features of the present invention, it is stipulated here that the tooth plate base 2 is the lower position of the entire system, otherwise it is the upper position, and the tooth plate column II 4 is the right position of the entire system, otherwise it is the left position.

[0030] See also Figure 1 and Figure 2 A combined cylindrical self-lubricating gear of a roasting machine star wheel includes: a tooth plate 1, a tooth plate base 2, a tooth plate column I3, a tooth plate column II4, left wheel teeth I5, left wheel teeth II6, right wheel teeth I7, right wheel teeth II8, a hexagonal through hole group I9, a circular through hole 10, a threaded hole group 11, a countersunk threaded hole I12, and a blind hole group II13.

[0031] See also Figures 1 to 3 The tooth plate 1 is composed of a tooth plate base 2, a tooth plate column Ⅰ3 and a tooth plate column Ⅱ4. The tooth plate base 2 is provided with 8 completely penetrating circular through holes 10. Every 4 circular through holes 10 are respectively arranged below the tooth plate column Ⅰ3 and the tooth plate column Ⅱ4 and are arranged in groups of 2 to be symmetrically distributed corresponding to the axis of the tooth plate column. The circular through holes 10 can be connected to the gear tooth base. The tooth plate column Ⅰ3, the tooth plate column Ⅱ4 and the tooth plate base 2 are integrally formed, which can improve the strength of the entire device. At the same time, a completely penetrating double-row hexagonal through hole group Ⅰ9 is opened on the front and rear sides of the tooth plate column Ⅰ3 and the tooth plate column Ⅱ4, and a blind hole group Ⅰ11 is opened on the top, and a blind hole group 13 is opened on the left and right sides. The same gear teeth are installed on the left and right sides of the tooth plate column Ⅰ3 and the tooth plate column Ⅱ4, so one group of the tooth plate column Ⅰ3 is selected for introduction.

[0032] See also Figure 1 Left gear teeth Ⅰ5 and left gear teeth Ⅱ6 are respectively arranged at the front and rear of the left side of the tooth plate column Ⅰ3, and right gear teeth Ⅰ7 and right gear teeth Ⅱ8 are respectively arranged at the front and rear of the right side, and a single countersunk threaded hole Ⅰ12 is opened at the top of each of them. The left gear teeth Ⅰ5, the left gear teeth Ⅱ6, the right gear teeth Ⅰ7 and the right gear teeth Ⅱ8 are respectively fixed to the tooth plate column Ⅰ3 by countersunk bolts passing through the countersunk threaded holes Ⅰ12. Since the left gear teeth Ⅰ5, the left gear teeth Ⅱ6, the right gear teeth Ⅰ7 and the right gear teeth Ⅱ8 have the same structure, and the left gear teeth Ⅰ5, the left gear teeth Ⅱ6, the right gear teeth Ⅰ7 and the right gear teeth Ⅱ8 are symmetrically distributed, only one of the left gear teeth Ⅱ6 is selected for introduction.

[0033] See also Figure 4 and Figure 5, a single row of hexagonal through holes group II14 is formed on the left gear II6, and two upper and lower T-shaped pin holes 15 are formed on the right side thereof. In addition, a semi-square oil storage channel 16 is formed from the top of the left gear II6 and faces the left gear I5, and runs from top to bottom. The two oil storage channels 16 on the left gear I5 and the left gear II6 are closed into a complete square channel structure. A plurality of upper and lower oil outlet channels 17 communicating with the oil storage channel 16 are formed parallel to the left side wall 19 of the left gear II6, and a semicircular hole 18 is formed at the left port side wall 19 of the oil outlet channel 17. The semicircular hole 18 is a semi-cylindrical hole structure perpendicular to the gear in the front-to-back direction, and a cylinder 21 is installed inside it, and the central angle θ of the gap formed between the cylinder 21 and the side wall 19 of the left gear II is less than 90°. A spring 20 is installed in the oil outlet channel 17, and a cylinder 21 is installed inside the semicircular hole 18. The left side of the cylinder 21 is connected to the spring 20. The purpose is to facilitate the oil flow out during the movement of the gear teeth, thereby reducing the friction heat generated during the movement of the gear teeth and increasing their service life. Finally, a through countersunk threaded hole II22 is opened at the bottom of the left gear tooth II6.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical implementation scheme of the present invention and are not intended to limit the present invention. Any modification or equivalent replacement of the technical solution of the present invention without departing from the purpose and scope of the technical solution of the present invention should be included in the scope of the present invention.

Claims

1. A combined cylindrical self-lubricating gear of a roasting machine star wheel, characterized in that : It includes a tooth plate and gear teeth installed on the tooth plate, the tooth plate includes a tooth plate base and a plurality of tooth plate columns, and two gear teeth are installed on the left and right sides of the tooth plate column; an oil storage channel is opened on the gear teeth from the top to the bottom along the outer contour thereof, and multiple oil outlet channels connected to the oil storage channel are opened in parallel from the top to the bottom of the gear teeth, and the outer port of the oil outlet channel is connected to the semicircular hole opening on the outer contour of the gear teeth, and a spring is installed in the oil outlet channel, and the semicircular hole is a semi-cylindrical hole structure perpendicular to the gear teeth in the front-back direction, and a cylinder is installed inside the semicircular hole, and the semicircular hole opening constrains the cylinder to be tightly connected with the spring in the semicircular hole; The tooth plate adopts an integrated structure, with a blind hole group I on the top of the tooth plate column, a blind hole group II on the side wall, and a double-row hexagonal through hole group I that is completely through on the front and rear sides; the same gear teeth are installed on the left and right sides of the tooth plate column, which are two left gear teeth and two right gear teeth with symmetrical structure distribution, respectively. The two left gear teeth are symmetrical in front and back, and the two left gear teeth are provided with a single-row hexagonal through hole group II that is connected to each other through a T-pin, and multiple T-pin holes are provided in the upper and lower directions on the right side thereof, and a countersunk threaded hole I is provided on the top of the left gear tooth, which is connected to the blind hole group I on the top of the tooth plate column through a countersunk bolt, and two countersunk threaded holes II of the gear teeth that are connected to each other through a bolt are provided at the bottom of the left gear tooth; The central angle θ between the semi-cylindrical hole of the semicircular hole and the side wall of the gear tooth is less than 90°; A threaded hole is opened outside the entrance of the oil storage channel at the top of the gear tooth, and a sealing cover is locked and connected to the gear tooth sealing oil storage channel through the threaded hole.

2. The combined cylindrical self-lubricating gear of the roasting machine star wheel according to claim 1 is characterized in that: Hexagonal prisms are inserted into the hexagonal through hole group I and the hexagonal through hole group II.

3. The combined cylindrical self-lubricating gear of the roasting machine star wheel according to claim 1, characterized in that: Four completely penetrating circular through holes are opened on the corresponding tooth plate base below each tooth plate column, and the circular through holes are symmetrically distributed with respect to the axis of the tooth plate column.

4. The combined cylindrical self-lubricating gear of the roasting machine star wheel according to claim 1 is characterized in that: A tooth plate column I and a tooth plate column II are installed on the tooth plate base, and two left gear teeth and two right gear teeth are installed on the two tooth plate columns.

5. The combined cylindrical self-lubricating gear of the roasting machine star wheel according to claim 1, characterized in that: The oil storage channel is divided into two symmetrical halves which are respectively arranged on the joint surfaces of two left gear teeth or two right gear teeth and are butt-jointed to form an integral channel.

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