Cylinder liner delivery method

Abstract

This invention relates to the technical field of material transfer devices, specifically a method for conveying slotted cylinder liners. This method utilizes an adaptive rotating roller conveyor to transfer slotted cylinder liners from a loading station to a unloading station. The method includes the following steps: placing the slotted cylinder liner onto a material tray, ensuring the concave groove of the cylinder liner is embedded in the limiting block on the tray; starting a reducer to drive a drive sprocket and chain, which in turn drives the rollers to rotate. The rollers include a drive roller and driven rollers, with the drive roller driving each driven roller via a chain; the material tray is transferred from the loading station to the unloading station under the frictional force generated by the drive roller and driven rollers; when the rollers are fully loaded, the pulley on the driven roller rotates freely, and the driven roller does not rotate. This invention reduces friction and wear between the rollers and material trays when the roller conveyor is fully loaded, thus extending the service life of both.

Description

Technical Field

[0001] This invention relates to the technical field of material transfer devices, specifically a method for conveying materials using slotted cylinder liners. Background Technology

[0002] Industrial automation is a product that combines control systems with information technology and applies them to actual industry. It is mainly used to coordinate various operating processes and machinery in industry, which can save human resources and optimize production efficiency.

[0003] The inventors have developed a roller conveyor line for transporting slotted cylinder liners. The slotted cylinder liner is a short, cylindrical tube with a groove on its end face. A circular positioning boss is located on the material tray, and a limiting block corresponding to the groove is positioned around the boss. The inner hole of the slotted cylinder liner is fitted onto the positioning boss on the material tray, and the limiting block of the material tray is embedded into the groove on the end face of the cylinder liner, thus limiting the position of the slotted cylinder liner. The material tray is then placed on the rollers to transport the slotted cylinder liners. However, this roller conveyor line, which uses a reducer, sprockets, and chains to drive the rollers for product transport, has the following drawbacks:

[0004] In actual production, the speed reducer is usually running continuously. The speed reducer drives the drum to rotate continuously through the chain and gears. If the material is not fed into the tray in time, the tray will be full of material. Since the drum is rotating continuously, the material or the bottom of the tray will rub against the drum surface for a long time, which will accelerate the wear of the drum and the tray and reduce the service life of the drum and the tray. Summary of the Invention

[0005] This invention provides a grooved cylinder liner conveying method, which can solve the problem that existing roller conveyor lines are prone to wear between rollers and material trays when conveying materials.

[0006] This application provides the following technical solution: a method for conveying slotted cylinder liners, used to transfer slotted cylinder liners from a loading station to a unloading station using an adaptive rotating roller conveyor line. The adaptive rotating roller conveyor line includes a frame and multiple rollers rotatably connected to the frame. Each roller includes a driving roller and a driven roller. A pulley is rotatably connected to the same end of both the driving and driven rollers. An elastic element for abutting the pulley and roller is passed through a rod between the pulley and the roller end. The other end of the driving roller is driven by a driving wheel. The conveying process includes the following steps:

[0007] Step 1: Place the slotted cylinder liner onto the tray on the adaptive rotating roller conveyor line;

[0008] Step II: Start the drive wheel to drive the drive drum to rotate;

[0009] When the number of material trays on the roller is full, the pulley on the driven roller spins freely, and the driven roller does not rotate.

[0010] Beneficial effects: By limiting the distance between the drive sprockets according to the transmission conditions, when unloading is delayed at the feeding station, the number of material trays on the rollers will increase, the pressure on the driven rollers will increase, and the sliding friction between the driven rollers and the material trays will increase. The increased size ensures that the driving force of the drive roller can only drive the pulley to rotate via the belt, and cannot drive the driven roller to rotate. This prevents the surface of the driven roller from rubbing against the material tray, reducing wear on both the driven roller and the material tray, and extending their service life.

[0011] Furthermore, the maximum spacing between adjacent drive sprockets on the adaptive rotating roller conveyor line... = Spacing between the two closest rollers × the number of driven rollers n × 2; the number of driven rollers n = the frictional force between the belt and the pulley at the end of the driven roller. ÷ Rolling dynamic friction between the roller and the rolling bearing .

[0012] Beneficial effects: If the distance between the drive sprockets is too large, the number of driven rollers and the number of trays that can be held between the drive sprockets will increase, and the load on the rollers will increase. This will result in the drive force of the drive sprockets being insufficient to drive the rollers to rotate. Therefore, by determining the maximum distance between adjacent drive sprockets, it can be ensured that within this distance, the power of the drive sprockets can drive the rollers to rotate, ensuring the normal operation of the conveyor line.

[0013] Furthermore, the adaptive rotating roller conveyor line must ensure the friction between the belt and the pulley at the end of the driven roller. > Sliding friction between the driven roller and the material tray ≥ Frictional force of the spring at the end of the driven roller .

[0014] Beneficial effect: Controls the friction between the belt and pulley at the end of the driven roller. Greater than the sliding friction between the driven roller and the material tray. This allows the positive driving force generated by the driving roller to overcome the reverse resistance generated by the sliding friction between the driven roller and the material tray through the belt, pulley, and spring at the end of the driven roller, thereby ensuring that the material tray on the driven roller can be transported normally.

[0015] Furthermore, the adaptive rotating roller conveyor line must ensure the rolling dynamic friction between the roller and the rolling bearing. + Sliding friction between the driven roller and the tray > Frictional force of the spring at the end of the driven roller > Rolling dynamic friction between the roller and the rolling bearing .

[0016] Beneficial effect: Controls the rolling dynamic friction between the roller and the rolling bearing. sliding friction between the driven roller and the tray The sum is greater than the frictional force of the spring at the end of the driven roller. This is to ensure that when the conveyor is fully loaded, the friction between the pulley at the end of the driven roller and the spring at that position is insufficient to drive the driven roller to rotate, so that all driven rollers do not rotate at this time, and no friction occurs between the driven roller and the material tray above it, thereby reducing the wear between the material tray and the roller.

[0017] Furthermore, the spacing between the two closest rollers ×2≤Length of the tray Conveying length of roller conveyor line =Number of trays (m) × Spacing between the two closest rollers ×2.

[0018] Beneficial effect: Controls the spacing between two closest rollers. ×2≤Length of the tray This design ensures that the length of a single tray is just enough to span three rollers, so that the number of trays above the conveyor line is fixed when the line is fully loaded. This ensures that when the conveyor line is fully loaded, the driving force of the drive sprocket is just insufficient to drive the driven rollers to rotate, thus achieving the purpose of keeping all driven rollers stationary and reducing frictional losses between the driven rollers and the trays.

[0019] Furthermore, the frame of the adaptive rotating roller conveyor includes multiple support seats and track beams fixedly connected to both ends of the support seats. The rollers are rotatably connected between the track beams. One end of the drive roller is keyed to a drive sprocket, and a chain is installed on the drive sprocket. A pulley is rotatably connected to the end of the roller on the opposite side of the drive sprocket.

[0020] Beneficial effects: The adaptive rotating roller conveyor uses a drive sprocket and chain installed at one end of the roller for power output, and a belt and pulley drive at the other end of the roller. This allows the driven roller to rotate idling when the material tray on the roller is fully loaded, thus avoiding frictional wear with the material tray and improving the life of the material tray and the roller.

[0021] Furthermore, the end of the roller on which the pulley is mounted is a stepped shaft, the pulley is rotatably connected to the end of the stepped shaft, the elastic element is a spring, the spring passes through the rod of the stepped shaft, one end of the spring abuts against the stepped surface of the stepped shaft, and the other end of the spring abuts against the end face of the pulley.

[0022] Beneficial effect: The spring is set on the end face of the pulley and the stepped shaft of the roller, so that the driving force of the pulley can be transmitted to the driven roller through the spring. When the material tray is not fully loaded, the driven roller can rotate normally. When the material tray is fully loaded, the friction between the spring and the end face of the stepped shaft cannot drive the driven roller to rotate, thus keeping the driven roller in a non-rotating state.

[0023] Furthermore, the pulley has two annular grooves, and a belt is installed in the annular grooves. The pulleys between adjacent roller ends are connected by belts for transmission, and the belts between the rollers are installed in a staggered manner.

[0024] Beneficial effects: The belt is installed in a staggered manner, which separates the rotation of the driven roller and the driving roller, so that the driven roller can rotate or not rotate depending on the number of material trays on the roller. Attached Figure Description

[0025] Figure 1 This is the front view of the present invention.

[0026] Figure 2 for Figure 1 A cross-sectional view along the AA direction.

[0027] Figure 3 A front view of an adaptive rotating roller conveyor line, viewed from the end where the drive sprocket is located.

[0028] Figure 4 for Figure 1 Enlarged view of the end of the adaptive rotating roller conveyor line. Detailed Implementation

[0029] The following detailed description illustrates the specific implementation method:

[0030] The markings in the accompanying drawings include: drive roller 1, driven roller 2, chain 3, drive sprocket 4, belt 5, material tray 6, rolling bearing 7, pulley 8, spring 9, bearing roller 10, track beam 11, support base 12, limit block 13, retaining ring 14, retaining groove cylinder liner 15.

[0031] Example 1

[0032] like Figure 1 and Figure 2As shown, the present invention provides an adaptive rotating roller conveyor line, comprising several equidistantly distributed support seats 12. Two parallel track beams 11 are symmetrically welded onto each support seat 12. Multiple mounting holes are equally spaced on each track beam 11, and several rolling bearings 7 are interference-fitted into the mounting holes. Rollers are installed between opposing rolling bearings 7. Each roller includes multiple equally spaced driving rollers 1 and driven rollers 2, with the number of driven rollers 2 exceeding the number of driving rollers 1. Each driving roller 1 has a driving wheel keyed to its end on the same side. In this application, the driving wheel is as follows: Figure 1 The driving sprocket 4 shown is connected to all other driving sprockets 4 via a chain 3, which is driven by a speed reducer. Figure 2 As shown, the portion of each roller extending beyond the track beam 11 on the side away from the drive sprocket 4 is a stepped shaft. A bearing roller 10 is screwed to the end of the stepped shaft. A pulley 8 is mounted on the outer surface of the bearing roller 10. A retaining ring 14 locks the pulley 8 to the bearing roller 10, allowing the pulley 8 to rotate around the end of the stepped shaft. A spring 9, a compression spring, is fitted onto the rod of the stepped shaft. One end of the spring 9 abuts against the stepped surface of the stepped shaft, and the other end abuts against the end face of the pulley 8. The pulley 8 has two annular grooves, and a belt 5 is installed in each groove. Figure 4 As shown, the belts 5 on two adjacent pulleys 8 are installed in a staggered manner.

[0033] The method for conveying the cylinder liner in the slot is as follows:

[0034] Place the slotted cylinder sleeve 15 onto the material tray 6, ensuring that the concave groove of the slotted cylinder sleeve 15 is embedded in the limiting block 13 on the material tray 6; ensuring the stability of the slotted cylinder sleeve 15 on the material tray 6;

[0035] The speed reducer is started, driving the chain 3 and the drive sprocket 4 to rotate, which in turn drives the drive roller 1 to rotate. The material tray 6, under the frictional force generated by the drive roller 1 and the driven roller 2, moves from... Figure 1 The roller gradually moves from the left to the right; during production, the drive roller is always rotating.

[0036] When the number of material trays 6 on the roller is full (full load means that the maximum number of material trays 6 that the interval can accommodate is piled up above all the driven rollers 2 between any two adjacent driving rollers 1), the driving roller 1 and the pulley 8 at the end of the driving roller 1 continue to rotate, while driving the pulley 8 at the end of the other driven rollers 2 to rotate together.

[0037] When the pulley 8 at the end of the driven roller 2 rotates, due to the overload of the number of trays 6, the friction between the pulley 8 at the end of the driven roller 2 and the spring 9 at that position is insufficient to drive the driven roller 2 to rotate, so that all the driven rollers 2 do not rotate at this time, and the trays 6 above all the driven rollers 2 will not be transported.

[0038] when Figure 1 After the material tray 6 at the unloading station on the right side is recovered, the total number of material trays 6 on the rollers decreases. The friction between the pulley 8 at the end of the driven roller 2 and the spring 9 at that position can drive the driven roller 2 to rotate, so that all the driven rollers 2 resume rotation at this time, and the material trays 6 above all the driven rollers 2 continue to be transported.

[0039] The adaptive rotating roller conveyor line needs to meet the following conditions during conveying:

[0040] like Figure 3 As shown, the maximum spacing between adjacent drive sprockets = Spacing between the two closest rollers × The number of driven rollers n×2;

[0041] The number of driven rollers n = the frictional force between the belt and the pulley at the end of the driven roller. ÷ Rolling dynamic friction between the roller and the rolling bearing ;

[0042] Spacing between the two closest rollers ×2≤Length of the tray Conveying length of roller conveyor line =Number of trays (m) × Spacing between the two closest rollers ×2;

[0043] Friction between the belt and pulley at the end of the driven roller > Sliding friction between the driven roller and the material tray ≥ Frictional force of the spring at the end of the driven roller ;

[0044] Rolling dynamic friction between the roller and the rolling bearing + Sliding friction between the driven roller and the tray > Frictional force of the spring at the end of the driven roller > Rolling dynamic friction between the roller and the rolling bearing .

[0045] The advantage of this conveying method is that when the number of trays on the roller is full, the sliding friction between the driven roller and the trays increases due to the increased weight of the trays. The rolling friction force between the roller and the rolling bearing increases at this time. sliding friction between the driven roller and the tray The sum is greater than the frictional force of the spring at the end of the driven roller. This ensures that the driving force of the drive roller can only drive the pulley on the driven roller to idle, but is insufficient to drive the driven roller to rotate. Since the driven roller does not rotate, its surface will not rub against the material tray, thereby reducing the wear of the driven roller and the material tray. When the material tray on the roller is removed in time, the pressure on the driven roller decreases, and the driving force of the drive roller can then drive the driven roller to rotate, thus enabling the conveyor line to operate normally.

[0046] When the number of material trays 6 on the roller is full, the sliding friction between the driven roller 2 and the material trays 6 increases due to the increased weight of the material trays 6. The rolling friction force between the roller and the rolling bearing 7 increases. The sliding friction between the driven roller 2 and the material tray 6 The sum is greater than the frictional force of the spring 9 at the end of the driven roller 2. This ensures that the driving force of the drive roller 1 can only drive the pulley 8 on the driven roller 2 to idle, but is insufficient to drive the driven roller 2 to rotate. Since the driven roller 2 does not rotate, its surface will not rub against the material tray 6, thereby reducing the wear of the driven roller 2 and the material tray 6. When the material tray 6 on the roller is removed in time, the pressure on the driven roller 2 decreases, and the driving force of the drive roller 1 can then drive the driven roller 2 to rotate, thereby allowing the conveyor line to flow normally.

[0047] The above are merely embodiments of the present invention. The invention is not limited to the fields covered by these embodiments, and common knowledge regarding specific structures and characteristics is not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A method for conveying cylinder liners in slots, characterized in that: This adaptive rotary roller conveyor is used to transfer grooved cylinder liners from the loading station to the unloading station. The conveyor includes a frame and multiple rollers rotatably connected to the frame. Each roller includes a driving roller and a driven roller. Pulleys are rotatably connected to the same end of both the driving and driven rollers. An elastic element for abutting the pulleys and rollers is threaded through a rod between the pulleys and the roller ends. The other end of the driving roller is driven by a driving wheel. The conveying process includes the following steps: Step 1: Place the slotted cylinder liner onto the tray on the adaptive rotating roller conveyor line; Step II: Start the drive wheel to drive the drive drum to rotate; When the number of material trays on the roller is full, the pulley on the driven roller spins freely, and the driven roller does not rotate; Maximum distance between adjacent driving wheels = Spacing between the two closest rollers × the number of driven rollers n × 2; the number of driven rollers n = the frictional force between the belt and the pulley at the end of the driven roller. ÷ Rolling dynamic friction between the roller and the rolling bearing ; The adaptive rotating roller conveyor line must ensure the friction between the belt and the pulley at the end of the driven roller. > Sliding friction between the driven roller and the material tray ≥ Frictional force of the spring at the end of the driven roller ; The adaptive rotating roller conveyor line must ensure the rolling dynamic friction between the roller and the rolling bearing. + Sliding friction between the driven roller and the tray > Frictional force of the spring at the end of the driven roller > Rolling dynamic friction between the roller and the rolling bearing ; Spacing between the two closest rollers ×2≤Length of the tray Conveying length of roller conveyor line =Number of trays (m) × Spacing between the two closest rollers ×2.

2. The method for conveying cylinder liners in a slot according to claim 1, characterized in that: The frame includes multiple support seats and track beams fixedly connected to both ends of the support seats. The rollers are rotatably connected between the track beams. The drive wheel is keyed to one end of the drive roller, and a chain is installed on the drive wheel. The pulley is rotatably connected to the end of the roller on the opposite side of the drive wheel.

3. The method for conveying cylinder liners in a slot according to claim 2, characterized in that: The end of the roller on which the pulley is mounted is a stepped shaft. The pulley is rotatably connected to the end of the stepped shaft. The elastic element is a spring, which passes through the rod of the stepped shaft. One end of the spring is pressed against the stepped surface of the stepped shaft, and the other end of the spring is pressed against the end face of the pulley.

4. The method for conveying cylinder liners in a slot according to claim 3, characterized in that: The pulley has two annular grooves, and a belt is installed in the grooves. The pulleys between adjacent roller ends are connected by belts for transmission, and the belts between the rollers are installed in a staggered manner.

Images