An elevator conveyor

Abstract

This utility model relates to the field of lifting and conveying technology, and discloses a lifting conveyor, including: a base, a hydraulic cylinder arranged in the center of the base, a tray fixedly arranged on the top of the hydraulic cylinder, multiple sets of guide rods arranged at the four corners of the tray and the base, a support frame fixedly arranged above the tray, multiple sets of transmission shafts arranged horizontally along the support frame, the transmission shafts being perpendicular to the conveying direction and arranged parallel at certain intervals, rollers arranged on the front and rear sides of the transmission shafts, a motor arranged on one set of transmission shafts, a conveyor belt sleeved between the rollers of two adjacent transmission shafts, multiple sets of cylinders fixedly arranged at the bottom of the frame, and limit frames arranged at both the front and rear ends of the frame, with the top of the telescopic rod of the cylinders fixedly connected to the limit frames respectively; through the lifting platform assembly and the multi-axis roller conveyor assembly, it can flexibly adapt to supporting equipment of different heights, while also ensuring that the material conveying speed in the horizontal direction is stable and controllable, thus improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lifting and conveying technology, specifically to a lifting and conveying machine. Background Technology

[0002] In modern industrial production and logistics, conveyor lines, as key equipment for material handling, are widely used in various automated production lines. Traditional conveyor lines can mostly only achieve continuous horizontal material transport, and their height is fixed, making it impossible to adapt to the height differences of upstream and downstream equipment.

[0003] When processing equipment, storage devices, or other conveying units at different heights exist on a production line, traditional conveyor lines struggle to directly connect materials between these devices. This often necessitates manual handling, the addition of transfer platforms, or extra lifting equipment to lift and transfer materials. This not only increases labor costs and equipment investment but also leads to production interruptions and reduced overall efficiency. Furthermore, manual handling carries risks of material damage and safety accidents, hindering the automation integration level and continuous operation capability of the production line. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a lifting conveyor.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A lifting conveyor includes: a base, a hydraulic cylinder at the center of the base, a tray fixedly mounted on the top of the hydraulic cylinder, multiple sets of guide rods at the four corners of the tray and the base, a support frame fixedly mounted above the tray, multiple sets of drive shafts axially and horizontally mounted on the support frame, the drive shafts being perpendicular to the conveying direction and arranged parallel at certain intervals, rollers on the front and rear sides of the drive shafts, a motor mounted on one set of drive shafts, a conveyor belt sleeved between the rollers of two adjacent drive shafts, multiple sets of cylinders fixedly mounted at the bottom of the frame, and limit frames at both the front and rear ends of the frame, with the tops of the telescopic rods of the cylinders fixedly connected to the limit frames respectively.

[0007] The frame is used to connect and fix the pallet, cylinder and drive shaft. The guide rod is used to extend or shorten as the pallet rises or falls. The limit frame is used to clamp and fix the goods on the conveyor belt under the action of the cylinder. The motor shaft is fixedly connected to the roller and the motor is used to drive the drive shaft to rotate.

[0008] The lifting platform assembly consists of a pallet, base, hydraulic cylinder, and guide rod. The multi-axis roller conveyor assembly consists of a frame, drive shaft, rollers, conveyor belt, motor, limit frame, and cylinder. The pallet is used to support the multi-axis roller conveyor assembly, and the pallet is lifted and lowered by the hydraulic cylinder.

[0009] Preferably, the limiting frame is an L-shaped plate structure, and a rotating shaft is provided at the connection between it and the frame. The rotating shaft is used for the limiting frame to rotate around the rotating shaft to realize the opening and closing action.

[0010] Preferably, the guide rod includes an outer cylinder and an inner rod. The outer cylinder is fixed to the base, one end of the inner rod is connected to the tray, and the other end is nested inside the outer cylinder and can slide along the axial direction of the outer cylinder. A guide slider is provided between the outer cylinder and the inner rod.

[0011] Preferably, a reduction gearbox is provided between the motor and the drive shaft, and the output shaft of the motor is connected to the drive shaft through the reduction gearbox.

[0012] Preferably, the roller and the drive shaft are connected by a key, and the outer circumferential surface of the roller is provided with an annular groove for positioning the conveyor belt, and the conveyor belt is embedded in the annular groove.

[0013] Preferably, it includes: a position sensor, which is disposed on the top of the frame, and is used to detect whether the goods have moved to the center position of the multi-axis roller conveyor assembly, and send a signal to control the motor to shut down and the cylinder to start.

[0014] Compared with the prior art, the present invention provides a lifting conveyor with the following advantages:

[0015] The multi-axis roller conveyor assembly, through the cooperation of multiple sets of parallel drive shafts, rollers, and conveyor belts, forms a stable conveying plane, enabling smooth and continuous material transport. The motor provides power to the drive shafts, which in turn drive adjacent rollers and drive shafts via the conveyor belt, ensuring uniform power transmission and stable, controllable material conveying speed in the horizontal direction.

[0016] The hydraulic cylinders in the lifting platform assembly provide strong and stable driving force, enabling precise lifting and lowering of the pallet and multi-axis roller conveyor assembly. It can flexibly adapt to supporting equipment at different heights and meet the height adjustment needs of diverse production environments. Attached Figure Description

[0017] Figure 1 This is a frontal planar structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the left-side planar structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal planar structure of the frame in this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the roller and motor in this utility model;

[0021] Figure 5 This is a schematic diagram of the planar structure of the limiting frame in this utility model.

[0022] The components include: 1. Multi-axis roller conveyor assembly; 2. Lifting platform assembly; 11. Support frame; 12. Drive shaft; 13. Roller; 14. Conveyor belt; 15. Motor; 16. Limiting frame; 17. Cylinder; 21. Pallet; 22. Base; 23. Hydraulic cylinder; 24. Guide rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-5 As shown, a lifting conveyor in this embodiment includes a base 22, and a hydraulic cylinder 23 is arranged in the center of the base 22. The hydraulic cylinder 23 provides power support for the lifting action of the entire device.

[0025] The top of the hydraulic cylinder 23 is fixedly connected to the tray 21. This fixed connection ensures that the hydraulic cylinder 23 can stably drive the tray 21 to rise and fall. Multiple sets of guide rods 24 are provided at the four corners of the tray 21 and the base 22. The distribution of the guide rods 24 provides stable guiding support for the rising and falling of the tray 21.

[0026] A support frame 11 is fixedly installed above the pallet 21. Multiple sets of drive shafts 12 are axially and horizontally arranged on the support frame 11. The drive shafts 12 are perpendicular to the conveying direction and are distributed in parallel at certain intervals. This distribution creates uniform force conditions for material conveying. Rollers 13 are provided on the front and rear sides of the drive shafts 12. A motor 15 is installed on one set of drive shafts 12, and the motor 15 provides power for the rotation of the drive shafts 12.

[0027] A conveyor belt 14 is fitted between the rollers 13 of two adjacent drive shafts 12, enabling power transmission between the adjacent rollers 13. Multiple sets of cylinders 17 are fixedly installed at the bottom of the support frame 11. Limit frames 16 are installed at both the front and rear ends of the support frame 11. The tops of the telescopic rods of the cylinders 17 are fixedly connected to the limit frames 16, allowing the cylinders 17 to precisely drive the limit frames 16.

[0028] This lifting conveyor device is typically positioned on the conveyor line at the location requiring a lifting height. When the device is activated, the hydraulic cylinder 23 actuates, pushing the pallet 21 up or down, aligning the multi-axis roller assembly 1 above it with the equipment height in the direction of incoming goods on the conveyor line. Subsequently, the motor 15 starts, driving its drive shaft 12 to rotate. The drive shaft 12 drives the rollers 13 at both ends to rotate, and through the conveyor belt 14 fitted onto the rollers 13, it drives the adjacent rollers 13 and their corresponding drive shafts 12 to rotate, thus achieving synchronous rotation of all rollers 13 in a cyclical manner, thereby propelling the goods above forward.

[0029] When the goods move to the center position of the multi-axis roller conveyor assembly 1, the motor 15 is turned off and the goods stop moving; then the cylinder 17 is activated, driving the limit frame 16 to clamp and fix the goods; then the hydraulic cylinder 23 is activated again, making the multi-axis roller conveyor assembly 1 level with the equipment height in the direction of the conveyor line, the motor 15 is restarted, and the goods continue to move forward, completing one cycle of operation.

[0030] In some examples, the limiting frame 16 is an L-shaped plate structure, and a rotating shaft is provided at the connection between it and the support frame 11. The rotating shaft allows the limiting frame 16 to rotate around the shaft to achieve the opening and closing action. This structure not only ensures the clamping effect on the goods, but also flexibly adapts to the fixing needs of goods of different sizes.

[0031] In some examples, the guide rod 24 includes an outer cylinder and an inner rod. The outer cylinder is fixed to the base 22, one end of the inner rod is connected to the tray 21, and the other end is nested inside the outer cylinder and can slide along the axial direction of the outer cylinder. A guide slider is provided between the outer cylinder and the inner rod. The guide slider reduces the frictional resistance when the two slide relative to each other, while enhancing the guiding accuracy of the guide rod 24 and further improving the stability of the lifting and lowering of the tray 21.

[0032] In some examples, a gearbox is provided between the motor 15 and the drive shaft 12, and the output shaft of the motor 15 is connected to the drive shaft 12 through the gearbox. The gearbox can adjust the speed of the drive shaft 12 according to the actual conveying requirements, making the conveying speed of goods more controllable and adapting to the conveying requirements of different materials.

[0033] In some examples, the roller 13 is keyed to the drive shaft 12, and the outer circumferential surface of the roller 13 is provided with an annular groove for positioning the conveyor belt 14, which is embedded in the annular groove. The keyed connection ensures the synchronous rotation of the roller 13 and the drive shaft 12, while the annular groove effectively prevents the conveyor belt 14 from shifting during operation, ensuring the stability of power transmission.

[0034] In some examples, a position sensor is installed on the top of the support frame 11. The position sensor detects whether the goods have moved to the center position of the multi-axis roller conveyor assembly 1 and sends a signal to control the motor 15 to shut down and the cylinder 17 to start. This setup automates the equipment's operation, reduces manual operation, and improves conveying efficiency and accuracy.

[0035] The working principle of this utility model is as follows:

[0036] When using this type of lifting conveyor, firstly, select a suitable installation location according to the layout requirements of the conveyor line, and place the base 22 stably, utilizing its stable structure to ensure the overall stability of the equipment. Using a fixed connection method, connect one end of the hydraulic cylinder 23 to the center of the base 22, and fix the other end to the bottom of the pallet 21, making the hydraulic cylinder 23 perpendicular to the plane of the base 22 and the pallet 21. Then, connect one end of multiple sets of guide rods 24 to the four corners of the pallet 21, and fix the other end to the corresponding position on the base 22. The nested structure of the outer cylinder and inner rod of the guide rods 24 ensures the guiding accuracy of the pallet 21 during lifting.

[0037] Next, the support frame 11 is fixed above the tray 21. Multiple sets of drive shafts 12 are installed parallel to each other on the support frame 11 at preset intervals, ensuring that the drive shafts 12 are axially horizontal and perpendicular to the conveying direction. Rollers 13 are installed on the front and rear sides of the drive shafts 12, and keyed connections are used to ensure synchronous rotation. A conveyor belt 14 is fitted between adjacent rollers 13, so that the conveyor belt 14 is embedded in the annular groove of the roller 13 to prevent deviation. The motor 15 is installed on one of the drive shafts 12, and power is transmitted through a reduction gearbox. At the same time, the cylinder 17 is fixed to the bottom of the support frame 11, and its telescopic rod is connected to the limit frames 16 at the front and rear ends, completing the overall assembly of the equipment.

[0038] During normal operation, the operator can activate the device via the control system. First, the hydraulic cylinder 23 actuates, pushing the pallet 21 up or down along the guide rod 24, making the multi-axis roller assembly 1 on the support frame 11 level with the equipment height in the direction of incoming parts on the conveyor line. At this time, the motor 15 starts, driving the connected drive shaft 12 to rotate through the reduction gearbox. The rollers 13 at both ends of the drive shaft 12 rotate accordingly, driving the adjacent rollers 13 and their corresponding drive shafts 12 to rotate through the conveyor belt 14. This sequentially links all the rollers 13 to rotate synchronously, thereby driving the goods above to move smoothly forward along the conveying direction.

[0039] When the position sensor at the top of the support frame 11 detects that the goods have moved to the center position of the multi-axis roller conveyor assembly 1, it sends a signal to shut off the motor 15, stopping the goods from moving. Immediately afterwards, the telescopic rod of the cylinder 17 extends, causing the L-shaped limit frame 16 to rotate and close around the rotating shaft, clamping and fixing the goods to prevent displacement during lifting. Then, the hydraulic cylinder 23 actuates again, adjusting the height of the pallet 21 so that the multi-axis roller conveyor assembly 1 is aligned with the equipment height in the conveyor line's delivery direction. The telescopic rod of the cylinder 17 retracts, causing the limit frame 16 to open, the motor 15 restarts, and the goods continue to be conveyed to the next section of the line, completing one full lifting and conveying cycle.

[0040] The lifting conveyor features a modular design, with the connection structure between the multi-axis roller conveyor assembly 1 and the lifting platform assembly 2 facilitating disassembly. When maintenance is required, components such as the drive shaft 12, rollers 13, and conveyor belt 14 can be easily cleaned and lubricated. The entire equipment is constructed of high-strength steel, and the guide sliders of the guide rod 24 are made of wear-resistant material. Both the hydraulic cylinder 23 and the pneumatic cylinder 17 are equipped with sealed protective structures, providing excellent wear and impact resistance and adaptability to various industrial environments.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lifting conveyor, characterized in that, include: A base (22) is provided with a hydraulic cylinder (23) in the center of the base (22). A tray (21) is fixedly provided on the top of the hydraulic cylinder (23). Multiple guide rods (24) are provided at the four corners of the tray (21) and the base (22). A support frame (11) is fixedly provided above the tray (21). Multiple transmission shafts (12) are axially and horizontally provided on the support frame (11). The transmission shafts (12) are perpendicular to the conveying direction and are arranged in parallel at certain intervals. Rollers (13) are provided on the front and rear sides of the transmission shafts (12). A motor (15) is provided on one of the transmission shafts (12). A conveyor belt (14) is sleeved between the rollers (13) of two adjacent transmission shafts (12). Multiple cylinders (17) are fixedly provided at the bottom of the frame (11). Limit frames (16) are provided at both the front and rear ends of the frame (11). The top of the telescopic rod of the cylinder (17) is fixedly connected to the limit frame (16). The frame (11) is used to connect and fix the pallet (21), the cylinder (17) and the drive shaft (12). The guide rod (24) is used to extend or shorten as the pallet (21) rises or falls. The limit frame (16) is used to clamp and fix the goods on the conveyor belt under the action of the cylinder. The rotating shaft of the motor (15) is fixedly connected to the roller (13). The motor (15) is used to drive the drive shaft (12) to rotate. The pallet (21), base (22), hydraulic cylinder (23) and guide rod (24) form the lifting platform assembly (2), and the frame (11), drive shaft (12), roller (13), conveyor belt (14), motor (15), limit frame (16) and cylinder (17) form the multi-axis roller assembly (1). The pallet (21) is used to support the multi-axis roller assembly (1), and the pallet (21) is driven by the hydraulic cylinder to lift the multi-axis roller assembly (1).

2. The lifting conveyor according to claim 1, characterized in that... The limiting frame (16) is an L-shaped plate structure. A rotating shaft is provided at the connection between the limiting frame (11) and the frame (11). The rotating shaft is used for the limiting frame (16) to rotate around the rotating shaft to realize the opening and closing action.

3. The lifting conveyor according to claim 1, characterized in that, The guide rod (24) includes an outer cylinder and an inner rod. The outer cylinder is fixed to the base (22). One end of the inner rod is connected to the tray (21), and the other end is nested inside the outer cylinder and can slide along the axial direction of the outer cylinder. A guide slider is provided between the outer cylinder and the inner rod.

4. A lifting conveyor according to claim 1, characterized in that, A gearbox is provided between the motor (15) and the transmission shaft (12), and the output shaft of the motor (15) is connected to the transmission shaft (12) through the gearbox.

5. A lifting conveyor according to claim 1, characterized in that, The roller (13) is keyed to the drive shaft (12), and the outer circumferential surface of the roller (13) is provided with an annular groove for positioning the conveyor belt (14), and the conveyor belt (14) is embedded in the annular groove.

6. A lifting conveyor according to claim 1, characterized in that, include: A position sensor is located on the top of the frame (11). The position sensor is used to detect whether the goods have moved to the center position of the multi-axis roller assembly (1) and send a signal to control the motor (15) to shut down and the cylinder (17) to start.

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