Tray elevator

Abstract

The utility model relates to the technical field of logistics storage and transportation, and provides a tray elevator, which comprises a main body frame, a lifting mechanism and a lifting mechanism, the driving assembly is arranged at the top of the main body frame; the tensioning shaft assembly is arranged at the bottom of the main body frame; the lifting conveyor is arranged on the conveying guide rail in a sliding manner; the counterweight assembly is arranged on the counterweight guide rail in a sliding manner; according to the tray elevator provided by the utility model, the top end and the bottom end of the lifting conveyor are respectively connected with the counterweight assembly through the first transmission part and the second transmission part, so that the counterweight assembly can synchronously and stably move along the counterweight guide rail when the driving assembly drives the lifting conveyor to move along the conveying guide rail; therefore, vibration and shaking in the lifting process are effectively reduced, the operation stability of equipment is remarkably improved, and safe transportation of goods is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics, warehousing and transportation, in particular to a pallet elevator. Background Art

[0002] With the rapid development of modern logistics and manufacturing, pallet elevators, as key equipment for efficient vertical transportation of goods, are crucial for improving overall logistics efficiency and reducing operating costs. Traditional pallet elevator designs often face various technical challenges, particularly in ensuring smooth operation during the lifting process and facilitating installation and commissioning.

[0003] Specifically, during the lifting process, traditional pallet lifts often experience slight vibration or shaking when they stop, which not only affects the safety and stability of the goods, but may also cause unnecessary wear and tear on the equipment itself and shorten its service life. Utility Model Content

[0004] The utility model provides a pallet elevator, which is used to solve the problem that the existing pallet elevator often vibrates or shakes slightly when it stops during the lifting process.

[0005] The utility model provides a pallet lift, comprising:

[0006] The main frame is formed with a counterweight guide rail and a conveying guide rail;

[0007] A drive assembly is arranged on the top of the main frame;

[0008] A tensioning shaft assembly is provided at the bottom of the main frame;

[0009] a lifting conveyor slidably disposed on the conveying guide rail;

[0010] a counterweight assembly slidably disposed on the counterweight guide rail;

[0011] In which, the top end of the lifting conveyor is connected to the counterweight assembly through a first transmission member, and the bottom end of the lifting conveyor is connected to the counterweight assembly through a second transmission member, the first transmission member is transmission-connected to the drive assembly, and the second transmission member is transmission-connected to the tensioning shaft assembly; in the process of the drive assembly driving the lifting conveyor to move along the conveying guide rail through the first transmission member, the lifting conveyor drives the counterweight assembly to move along the counterweight guide rail through the first transmission member and the second transmission member under the restriction of the drive assembly and the tensioning shaft assembly.

[0012] According to a pallet lift provided by the present invention, the drive assembly includes:

[0013] First motor;

[0014] Angle wheel device, drivingly connected to the first motor;

[0015] A drive shaft device, drivingly connected to the angle wheel device;

[0016] A driven shaft device, the first transmission member is wound around the driven shaft device and the driving shaft device, and two ends of the first transmission member are respectively connected to the top of the lifting conveyor and the top of the counterweight assembly.

[0017] According to a pallet elevator provided by the present invention, the first transmission member includes:

[0018] a first chain connected to one side of the driven shaft device and the driving shaft device, with two ends respectively connected to the top of the lifting conveyor and the top of the counterweight assembly;

[0019] a second chain connected to the other side of the driven shaft device and the driving shaft device, with both ends connected to the top of the lifting conveyor and the top of the counterweight assembly respectively;

[0020] a third chain connected to one side of the drive shaft device, with its two ends respectively connected to the top of the lifting conveyor and the top of the counterweight assembly;

[0021] The fourth chain is connected to the other side of the driving shaft device, and its two ends are respectively connected to the top of the lifting conveyor and the top of the counterweight assembly.

[0022] According to a pallet elevator provided by the present invention, the second transmission member includes:

[0023] a fifth chain, connected to one side of the tensioning shaft assembly, with its two ends respectively connected to the bottom end of the lifting conveyor and the bottom end of the counterweight assembly;

[0024] A sixth chain is connected to the other side of the tensioning shaft assembly, and its two ends are respectively connected to the bottom end of the lifting conveyor and the bottom end of the counterweight assembly.

[0025] According to a pallet lift provided by the present invention, the main frame is provided with a top frame and a bottom frame, the counterweight guide rail and the conveying guide rail both extend from the top frame to the bottom frame, and the drive assembly is arranged on the top frame.

[0026] According to a pallet elevator provided by the utility model, the bottom of the top frame is provided with a first limiting bracket suitable for abutting the top of the lifting conveyor, and the top of the bottom frame is provided with a second limiting bracket suitable for abutting the bottom of the lifting conveyor;

[0027] The first limiting bracket and / or the second limiting bracket are provided with a collision buffer.

[0028] According to a pallet lift provided by the utility model, at least one side of the top frame is connected to a ladder for a user to climb.

[0029] According to a pallet lift provided by the present invention, the first transmission member and / or the second transmission member are connected to the rotating pulley, and the rotating pulley is provided with an anti-fall speed limiting device for limiting the movement of the first transmission member and / or the second transmission member relative to it.

[0030] According to a pallet elevator provided by the present invention, a protective net is provided on at least one side of the main frame, and the main frame cooperates with the protective net to form an installation space for arranging the lifting conveyor.

[0031] According to a pallet elevator provided by the utility model, the lifting conveyor includes:

[0032] A lifting frame is formed with an accommodating space;

[0033] A plurality of rollers are arranged at the bottom of the accommodation space, and the rollers are connected to each other in a transmission manner;

[0034] The second motor is drivingly connected to at least one of the roller shafts.

[0035] The pallet elevator provided by this utility model utilizes a unique dual-transmission design, where the top and bottom ends of the lifting conveyor are connected to the counterweight assembly via a first transmission member and a second transmission member, respectively. This design enables the counterweight assembly to move synchronously and stably along the counterweight guide rails as the drive assembly drives the lifting conveyor along the conveyor guide rails, effectively reducing vibration and shaking during the lifting process, significantly improving the operational stability of the equipment and ensuring the safe transportation of cargo. Furthermore, the tensioning shaft assembly, located at the bottom of the main frame and working in conjunction with the second transmission member, provides additional tensioning and support for the entire lifting system, further enhancing the structural stability and reliability and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1This is a structural diagram of the pallet elevator provided by the utility model;

[0038] Figure 2 This is a front view of the pallet elevator provided by the utility model;

[0039] Figure 3 This is a side view of the pallet elevator provided by the utility model;

[0040] Figure 4 This is a top view of the pallet elevator provided by the utility model;

[0041] Figure 5 This is a cross-sectional view of the interior of the pallet elevator provided by the present invention;

[0042] Reference numerals:

[0043] 1. Main frame; 2. Counterweight guide rail; 3. Counterweight assembly; 4. Counterweight guide wheel group; 5. Conveyor guide rail; 6. Lifting conveyor; 7. Guide wheel group; 8. Driven shaft device; 9. Drive shaft device; 10. Angle wheel device; 11. Tensioning shaft device; 12. First limit bracket; 13. Second limit bracket; 14. Ladder; 15. Lifting motor seat; 16. Anti-fall speed limiting device; 17. Protective net; 101. Top frame; 102. Bottom frame; 601. Roller conveyor; 602. Lifting frame; 6011. Channel steel; 6012. Roller machine motor beam; 6013. Second motor; 6014. Roller shaft; 6015. Guide frame; 6016. Guide frame bracket; 6017. Hanger. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] The following combination Figure 1-Figure 5 The present invention describes a pallet lifter.

[0046] In some embodiments, as Figures 1 to 3As shown, the pallet lift includes: a main frame 1, a drive assembly, a tensioning shaft assembly, a lifting conveyor 6 and a counterweight assembly 3. The main frame 1 is formed with a counterweight guide rail 2 and a conveying guide rail 5; the drive assembly is arranged at the top of the main frame 1; the tensioning shaft assembly is arranged at the bottom of the main frame 1; the lifting conveyor 6 is slidably arranged on the conveying guide rail 5; the counterweight assembly 3 is slidably arranged on the counterweight guide rail 2; wherein, the top end of the lifting conveyor 6 is connected to the counterweight assembly 3 through a first transmission member, and the bottom end of the lifting conveyor 6 is connected to the counterweight assembly 3 through a second transmission member, the first transmission member is in transmission connection with the drive assembly, and the second transmission member is in transmission connection with the tensioning shaft assembly; in the process of the drive assembly driving the lifting conveyor 6 to move along the conveying guide rail 5 through the first transmission member, the lifting conveyor 6 drives the counterweight assembly 3 to move along the counterweight guide rail through the first transmission member and the second transmission member under the restriction of the drive assembly and the tensioning shaft assembly.

[0047] In this embodiment, the main frame 1 is constructed from multiple bolted subframes. Each subframe utilizes square hollow steel at its corners and 6011 channel steel welded in the center. This provides sufficient rigidity and stability to support the entire pallet elevator. The frame is internally designed with counterweight guide rails 2 and conveyor rails 5. The counterweight guide rails 2 guide the vertical movement of the counterweight assembly 3; the conveyor rails 5 guide the vertical movement of the lifting conveyor 6.

[0048] The drive assembly, mounted on top of the main frame 1, provides the power for adjusting the lift conveyor 6. The tensioning shaft assembly, located at the bottom of the main frame 1, effectively prevents loosening and slipping of the transmission components, improving transmission efficiency and service life. The counterweight assembly 3, a key component slidably mounted on the counterweight guide rail 2, balances the weight of the lift conveyor 6 and the cargo, reducing the load and energy consumption of the drive assembly.

[0049] When the drive assembly is activated, it drives the first transmission member, which in turn drives the lifting conveyor 6 up or down along the conveyor guide rail 5. Simultaneously, the lifting conveyor 6 transmits power to the counterweight assembly 3 via the first and second transmission members, driving the counterweight assembly 3 to move synchronously along the counterweight guide rail 2. During this process, the tensioning shaft assembly maintains the tension on the second transmission member, ensuring transmission efficiency and service life. Through precise design and coordinated operation, the entire system achieves smooth, efficient, and safe vertical transportation of pallets and cargo.

[0050] The pallet elevator provided by the embodiment of the present invention adopts a unique dual-transmission design, that is, the top and bottom ends of the lifting conveyor 6 are respectively connected to the counterweight assembly 3 through a first transmission member and a second transmission member. This design enables the counterweight assembly 3 to move synchronously and stably along the counterweight guide rail 2 when the driving assembly drives the lifting conveyor 6 to move along the conveying guide rail 5, thereby effectively reducing vibration and shaking during the lifting process, significantly improving the operational stability of the equipment, and ensuring the safe transportation of goods. At the same time, the tensioning shaft assembly is located at the bottom of the main frame 1 and works in conjunction with the second transmission member to provide additional tensioning and support for the entire lifting system, further enhancing the stability and reliability of the structure and extending the service life of the equipment.

[0051] In this embodiment, the main frame 1 is formed by bolting together small frames. The four corners of each small frame use square hollow steel sections, and the middle is welded with channel steel 6011. A lentil-shaped patterned steel plate is welded on the top frame 101 of the main frame 1, which has functions such as anti-slip and aesthetics, and is convenient for later maintenance and safety. The inner side of the main frame 1 has space to accommodate the lifting conveyor 6 and the counterweight assembly 3, and is separated in the middle. The space on the left side of the main frame 1 of the pallet elevator is the operating environment of the lifting conveyor 6. A conveying guide rail 5 (T-shaped guide rail) is installed on the left and right sides of the space to guide the lifting conveyor 6 to move up and down, making its movement more stable. The space on the right side of the main frame 1 of the pallet elevator is the operating environment of the counterweight assembly 3. A counterweight guide rail 2 is installed on the front and back of the space to guide the counterweight assembly 3 to move up and down, making its movement stable and not exceeding the space range. A tensioning shaft device 11 is installed near the bottom of the right side of the counterweight assembly 3 space on the right side of the bottom frame 102 of the main frame 1. A counterweight guide wheel group 4 and a guide wheel group 7 are provided on the main frame 1. The counterweight guide wheel group 4 is used for guiding the counterweight, while the guide wheel group 7 is used for guiding the lifting conveyor 6.

[0052] In some embodiments, as Figures 1 to 4 As shown, the drive assembly includes: a first motor, an angle pulley assembly 10, a drive shaft assembly 9, and a driven shaft assembly 8. The angle pulley assembly 10 is in driving connection with the first motor; the drive shaft assembly 9 is in driving connection with the angle pulley assembly 10; a first transmission member is wound around the driven shaft assembly 8 and the drive shaft assembly 9, and its ends are respectively connected to the top of the lifting conveyor 6 and the top of the counterweight assembly 3.

[0053] Specifically, the first motor is mounted on top of the main frame 1 via a lifting motor mount 15. The output shaft of the first motor is connected to the angle pulley assembly 10, with power transmission achieved through transmission elements such as gears, belts, or couplings. The angle pulley assembly 10 is a device used to increase the transmission contact area and transmission ratio. It typically consists of multiple angle pulleys and a support structure. The angle pulleys are mounted on the support structure via bearings and are in transmission connection with the output shaft of the first motor. When the first motor rotates, the angle pulley assembly 10 converts the first motor's rotational motion into a smoother and more uniform rotation, which is then transmitted to the drive shaft assembly 9 via transmission elements. The drive shaft assembly 9 is used to transmit power from the angle pulley assembly 10 and drive the movement of the first transmission element. The drive shaft assembly 9 typically consists of a shaft, a bearing seat, bearings, and transmission elements (such as sprockets and gears). The shaft is fixed to the main frame 1 via the bearing seat. The transmission element is mounted on the shaft and connected to the first transmission element (such as a chain or belt) of the angle pulley assembly 10. When the angle pulley assembly 10 rotates, the transmission element drives the drive shaft assembly 9, thereby driving the movement of the first transmission element. The driven shaft device 8 is usually composed of a shaft body, a bearing seat and a bearing, but does not directly participate in the transmission of power. The driven shaft device 8 is fixed to the main frame 1 through the bearing seat and is arranged parallel to the driving shaft device 9. The first transmission member (such as a chain, a wire rope, etc.) is wound around the driven shaft device 8 and the driving shaft device 9 to form a closed transmission loop. In this way, when the driving shaft device 9 rotates, the first transmission member can circulate along the driven shaft device 8 and the driving shaft device 9. The two ends of the first transmission member are respectively connected to the top of the lifting conveyor 6 and the top of the counterweight assembly 3 through a connecting device. When the driving assembly is working, the first transmission member moves under the guidance of the driving shaft device 9 and the driven shaft device 8. Since both ends of the first transmission member are facing downward, the lifting conveyor 6 and the counterweight assembly 3 can be driven to rise and fall in opposite directions.

[0054] In some embodiments, as Figures 1 to 4 As shown, the first transmission member includes: a first chain, a second chain, a third chain and a fourth chain. The first chain is connected to one side of the driven shaft device 8 and the driving shaft device 9, and its two ends are respectively connected to the top of the lifting conveyor 6 and the top of the counterweight assembly 3; the second chain is connected to the other side of the driven shaft device 8 and the driving shaft device 9, and its two ends are respectively connected to the top of the lifting conveyor 6 and the top of the counterweight assembly 3; the third chain is connected to one side of the driving shaft device 9, and its two ends are respectively connected to the top of the lifting conveyor 6 and the top of the counterweight assembly 3; the fourth chain is connected to the other side of the driving shaft device 9, and its two ends are respectively connected to the top of the lifting conveyor 6 and the top of the counterweight assembly 3.

[0055] In this embodiment, the first chain is connected from the upper left front end of the lifting conveyor 6 to the front sprocket of the driven shaft device 8 on the top frame 101, extends to the second front sprocket of the drive shaft device 9, and then connects to the upper front end of the counterweight assembly 3. The second chain is connected from the upper left rear end of the lifting conveyor 6 to the rear sprocket of the driven shaft device 8 on the top frame 101, extends to the second rear sprocket of the drive shaft device 9, and then connects to the upper rear end of the counterweight assembly 3. The third chain is connected from the upper right front end of the lifting conveyor 6 to the first front sprocket of the drive shaft device 9 on the top frame 101, and then connects to the upper front end of the counterweight assembly 3. The fourth chain is connected from the upper right rear end of the lifting conveyor 6 to the first rear sprocket of the drive shaft device 9 on the top frame 101, and then connects to the upper rear end of the counterweight assembly 3.

[0056] During operation, the first motor drives the angle wheel device, and the angle wheel device drives the drive shaft device 9 to rotate. The first chain, the second chain, the third chain and the fourth chain move under the drive of the drive shaft device 9, causing the counterweight assembly 3 and the lifting conveyor 6 to move in opposite directions.

[0057] To ensure stability, the second transmission element includes a fifth chain and a sixth chain. The fifth chain is connected to one side of the tensioning shaft assembly, with its ends connected to the bottom of the lifting conveyor 6 and the bottom of the counterweight assembly 3, respectively. The sixth chain is connected to the other side of the tensioning shaft assembly, with its ends connected to the bottom of the lifting conveyor 6 and the bottom of the counterweight assembly 3, respectively.

[0058] Among them, the fifth chain is connected from the right front end below the lifting conveyor 6 to the front sprocket of the tensioning shaft device 11 on the bottom frame 102, and then to the front end below the counterweight assembly 3. The sixth chain is connected from the right rear end below the lifting conveyor 6 to the rear sprocket of the tensioning shaft device 11 on the bottom frame 102, and then to the rear end below the counterweight assembly 3. The first chain, the second chain, the third chain and the fourth chain are connected to the top of the lifting conveyor 6 and the counterweight assembly 3 through the drive shaft device 9 of the top frame 101. The fifth chain and the sixth chain are both connected to the bottom of the counterweight assembly 3 through the tensioning shaft device 11 of the bottom frame 102, thereby forming a circular motion, which ensures the stability of the lifting conveyor 6 during the lifting process. All chains are tensioned when arranged vertically to ensure the stability and reliability of the transmission and avoid poor engagement and chain vibration.

[0059] In some embodiments, as Figures 1 to 3As shown, the main frame 1 comprises a top frame 101 and a bottom frame 102. The counterweight guide rails 2 and conveyor guide rails 5 extend from the top frame 101 to the bottom frame 102, and the drive assembly is mounted on the top frame 101. The top frame 101, located above the main frame 1, serves as a platform for mounting the drive assembly and other overhead equipment. It is typically constructed from high-strength steel or aluminum alloy, providing sufficient rigidity and stability to support the weight of the entire drive system and the dynamic loads during operation. The top frame 101 may also be equipped with various mounting holes, brackets, and rails to facilitate the installation and securing of equipment such as the drive assembly, control elements, and sensors. The bottom frame 102, located below the main frame 1, serves as the foundation supporting the entire structure. Similar to the top frame 101, the bottom frame 102 is also constructed from high-strength materials to ensure it can withstand the weight of the elevator conveyor 6, the counterweight assembly 3, and the cargo. The counterweight guide rails 2 and conveyor guide rails 5 guide the vertical movement of the counterweight assembly 3 and the elevator conveyor 6, respectively. These two guide rails are typically made of precision-machined steel, with smooth surfaces and precise dimensions to ensure smooth and stable operation of the sliding components. The counterweight guide rail 2 and conveyor guide rail 5 extend from the top frame 101 to the bottom frame 102, forming two parallel channels. These channels not only guide the sliding components but also enhance the overall stability of the main frame 1 through their structural rigidity.

[0060] In some embodiments, as Figures 1 to 3 As shown, the bottom of the top frame 101 is provided with a first limiting bracket 12 suitable for abutting the top of the lifting conveyor 6, and the top of the bottom frame 102 is provided with a second limiting bracket 13 suitable for abutting the bottom of the lifting conveyor 6; a collision buffer is provided on the first limiting bracket 12 and / or the second limiting bracket 13.

[0061] Specifically, the first limiting bracket 12 is mounted at the bottom of the top frame 101 to ensure that the lifting conveyor 6 accurately contacts the top when it reaches its highest point. This design prevents the lifting conveyor 6 from derailing or damaging the equipment due to excessive ascent. The first limiting bracket 12 is equipped with a collision buffer, a device that absorbs impact energy and mitigates the force of a collision. When the lifting conveyor 6 contacts the first limiting bracket 12, the collision buffer activates, protecting the lifting conveyor 6 from sudden impact and reducing noise and vibration. The second limiting bracket 13 is mounted at the top of the bottom frame 102 to ensure that the lifting conveyor 6 accurately contacts the bottom when it descends to its lowest point. This design prevents the lifting conveyor 6 from hitting the ground or damaging the equipment due to excessive descent. Similar to the first limiting bracket 12, the second limiting bracket 13 can also be equipped with a collision buffer. The collision buffer can be made of a variety of materials and structures, such as rubber pads, springs, hydraulic dampers, etc. The choice of these devices depends on the specific application scenario, impact force, and buffering requirements. When designing a crash buffer, factors such as its ability to absorb impact energy, durability, maintenance costs, and compatibility with other components need to be considered. It is also necessary to ensure that the crash buffer maintains stable performance over the long term and can be replaced or repaired promptly when necessary.

[0062] like Figures 1 to 3 As shown, a ladder 14 for users to climb is connected to at least one side of the top frame 101. This allows maintenance personnel to use the ladder 14 to reach the top frame 101 from higher floors for inspection and maintenance. The ladder 14 should be located in an easily accessible area that does not affect the normal operation of the equipment. Furthermore, the ladder 14 should be designed to be stable and reliable, capable of withstanding the weight of maintenance personnel and the dynamic loads during climbing. Furthermore, the steps of the ladder 14 should be non-slip and wear-resistant, and handrails should be provided to increase stability during climbing.

[0063] It should be noted that a protective net 17 can be provided on the outer layer of the main frame 1 to ensure the safety of personnel during normal operation or maintenance. In this embodiment, the protective net 17 is provided on at least one side of the main frame 1. The main frame 1 and the protective net 17 form an installation space for the lifting conveyor 6 to prevent objects from falling from a height and to prevent operators from accidentally entering the interior of the pallet elevator.

[0064] In some embodiments, as Figures 1 to 4As shown, the first transmission member and / or the second transmission member is connected to the rotating pulley, and the rotating pulley is provided with an anti-fall speed limiting device 16 for limiting the relative movement of the first transmission member and / or the second transmission member. The first transmission member and / or the second transmission member is connected to the rotating pulley by a suitable means (such as a chain, a belt, a wire rope, etc.). This connection allows the transmission member to move along the pulley surface under the action of the driving force, thereby driving the lifting conveyor 6 to perform a lifting motion. The rotating pulley is a key component for the movement of the transmission member, and the anti-fall speed limiting device 16 is installed on it. This device usually includes one or more mechanical or electronic components for monitoring the motion state of the transmission member and taking measures to limit its movement when necessary.

[0065] When it is detected that the transmission member's movement speed exceeds the preset safety limit, the braking mechanism is automatically activated to slow down or stop the movement of the transmission member; or when it is detected that the transmission member has a tendency to leave the pulley surface, the transmission member is immediately locked to prevent it from falling.

[0066] This embodiment improves the safety performance of the pallet lift by providing the anti-fall speed limiting device 16. It can respond quickly when an abnormal situation occurs in the equipment, reduce the possibility of accidents, and protect the safety of workers and equipment.

[0067] In some embodiments, as Figures 1 to 5 As shown, the lifting conveyor 6 includes a lifting frame 602, multiple rollers 6014, and a second motor 6013. The lifting frame 602 forms a storage space for goods. Multiple rollers 6014 are disposed at the bottom of the storage space, each roller 6014 being in transmission connection with one another. The second motor 6013 is in transmission connection with at least one of the rollers 6014.

[0068] In this embodiment, the lifting frame 602 is the main structure of the lifting conveyor 6, forming a storage space for goods. The size and shape of this storage space are typically designed based on actual needs to accommodate pallets and goods of varying sizes and weights. The lifting frame 602 is typically constructed of durable materials, such as steel or aluminum alloy, to ensure it can withstand the weight of the goods and the dynamic loads during the lifting process. The rollers 6014 are key components located at the bottom of the storage space. They are interconnected and form a rolling surface. When a pallet is placed on the rollers 6014, the rolling motion of the rollers 6014 reduces friction between the pallet and the lifting frame 602, facilitating vertical movement of the pallet. The number and distribution of the rollers 6014 are designed based on actual needs to ensure stability and balance during the lifting process. Furthermore, the material of the rollers 6014 must possess sufficient strength and wear resistance to withstand long-term rolling friction. The second motor 6013 is the power source that drives the rollers 6014. It is usually connected to at least one of the rollers 6014 (eg, via a transmission device such as a chain, a belt, or a gear) to convert the rotational motion of the motor into the rolling motion of the roller 6014 .

[0069] The second motor 6013 starts and drives the connected rollers 6014 to rotate. Because the rollers 6014 are interconnected, the entire surface of the rollers 6014 begins to roll. At this point, a tray placed on the rollers 6014 will move with the rolling motion of the rollers 6014. By controlling the direction and speed of the second motor 6013, the direction and speed of the tray's movement can be controlled.

[0070] In a specific embodiment, Figure 1 、 Figure 2 and Figure 5 As shown, the lifting conveyor of the pallet elevator includes a roller conveyor 601 and a lifting frame 602. The roller conveyor 601 includes a channel steel 6011, a roller motor beam 6012, a second motor 6013, a roller shaft 6014, a guide frame 6015, a guide frame bracket 6016, and a hanger 6017.

[0071] like Figure 2 and Figure 5 As shown, the roller conveyor 601 of the lifting conveyor is composed of two left and right channel steels 6011 as the base, with 11 roller shafts 6014 installed in the middle, and hangers 6017 installed on the left and right lower parts. A roller motor beam 6012 is installed under the right channel steel 6011 for installing the second motor 6013. The roller shafts 6014 are connected in pairs with chains, and the two roller shafts 6014 around the second motor 6013 are connected in three ways with chains. A guide frame 6015 and a guide frame bracket 6016 are symmetrically installed above the two channel steels 6011.

[0072] like Figure 1 As shown, the lifting frame 602 of the lifting conveyor 6 is welded by columns, square hollow steel sections, etc. to form a space for storing goods.

[0073] like Figure 1 and Figure 3 As shown, the counterweight assembly 3 of the pallet elevator is composed of a counterweight plate placed in a frame surrounded by channel steel to achieve the counterweight effect of maintaining the balance and stability of the mechanical system or object. At the same time, the counterweight plate can be increased or decreased as needed to facilitate actual installation requirements.

[0074] like Figure 1 As shown, in a feasible embodiment of the present invention, the main frame 1 is four stories high and is divided into five levels, including the first floor, mezzanine, second floor, third floor, and fourth floor. Specifically, the first floor right window, mezzanine left window, mezzanine right window, second floor right window, third floor left window, third floor right window, and fourth floor right window.

[0075] like Figure 1 As shown in one possible embodiment of the present invention, the lifting conveyor 6 is currently stopped at the second floor, and its second motor 6013 is running, causing the goods on the second floor right window conveyor to move into the pallet elevator via the roller conveyor 601. Subsequently, the motor of the pallet elevator is running, lifting the lifting conveyor 6 (with the goods) via the chain, and the counterweight assembly 3 is then lowered.

[0076] Specifically, the first motor runs, the driving shaft device 9 rotates clockwise, the chain drives the driven shaft device 8 to rotate clockwise, the lifting conveyor 6 rises through the T-shaped guide rail, the counterweight assembly 3 descends through the counterweight guide rail 2, and the tensioning shaft device 11 rotates clockwise.

[0077] like Figure 1 As shown, in a feasible embodiment of the present invention, the lifting conveyor 6 (with goods) reaches the fourth floor, the motor stops running, and the lifting conveyor 6 (with goods) and the counterweight assembly 3 stop. The lifting conveyor 6 (with goods) stops at the fourth floor, and its second motor 6013 runs, so that the goods pass through the roller conveyor 601 and run out of the fourth floor right window conveyor, completing the purpose of the goods from the second floor to the fourth floor.

[0078] Specifically, the second motor 6013 of the lifting conveyor 6 runs, and drives the roller shaft 6014 of the roller machine to rotate through the chain between the rollers, and moves the goods out of the lifting conveyor 6 together.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A pallet lift, characterized in that: include: The main frame is formed with a counterweight guide rail and a conveying guide rail; A drive assembly is arranged on the top of the main frame; A tensioning shaft assembly is provided at the bottom of the main frame; a lifting conveyor slidably disposed on the conveying guide rail; a counterweight assembly slidably disposed on the counterweight guide rail; In which, the top end of the lifting conveyor is connected to the counterweight assembly through a first transmission member, and the bottom end of the lifting conveyor is connected to the counterweight assembly through a second transmission member, the first transmission member is transmission-connected to the drive assembly, and the second transmission member is transmission-connected to the tensioning shaft assembly; in the process of the drive assembly driving the lifting conveyor to move along the conveying guide rail through the first transmission member, the lifting conveyor drives the counterweight assembly to move along the counterweight guide rail through the first transmission member and the second transmission member under the restriction of the drive assembly and the tensioning shaft assembly.

2. The pallet lifter according to claim 1, characterized in that: The drive assembly includes: First motor; Angle wheel device, drivingly connected to the first motor; A drive shaft device, drivingly connected to the angle wheel device; A driven shaft device, the first transmission member is wound around the driven shaft device and the driving shaft device, and two ends of the first transmission member are respectively connected to the top of the lifting conveyor and the top of the counterweight assembly.

3. The pallet lifter according to claim 2, characterized in that: The first transmission member comprises: a first chain connected to one side of the driven shaft device and the driving shaft device, with two ends respectively connected to the top of the lifting conveyor and the top of the counterweight assembly; a second chain connected to the other side of the driven shaft device and the driving shaft device, with both ends connected to the top of the lifting conveyor and the top of the counterweight assembly respectively; a third chain connected to one side of the drive shaft device, with its two ends respectively connected to the top of the lifting conveyor and the top of the counterweight assembly; The fourth chain is connected to the other side of the driving shaft device, and its two ends are respectively connected to the top of the lifting conveyor and the top of the counterweight assembly.

4. The pallet lifter according to claim 2, characterized in that: The second transmission member includes: a fifth chain, connected to one side of the tensioning shaft assembly, with its two ends respectively connected to the bottom end of the lifting conveyor and the bottom end of the counterweight assembly; A sixth chain is connected to the other side of the tensioning shaft assembly, and its two ends are respectively connected to the bottom end of the lifting conveyor and the bottom end of the counterweight assembly.

5. The pallet lifter according to claim 1, characterized in that: The main frame is provided with a top frame and a bottom frame, the counterweight guide rail and the conveying guide rail both extend from the top frame to the bottom frame, and the driving assembly is arranged on the top frame.

6. The pallet lifter according to claim 5, characterized in that: The bottom of the top frame is provided with a first limiting bracket suitable for abutting the top of the lifting conveyor, and the top of the bottom frame is provided with a second limiting bracket suitable for abutting the bottom of the lifting conveyor; The first limiting bracket and / or the second limiting bracket are provided with a collision buffer.

7. The pallet lifter according to claim 5, characterized in that: At least one side of the top frame is connected to a ladder for a user to climb.

8. The pallet lifter according to claim 1, characterized in that: The first transmission member and / or the second transmission member are in transmission connection with a rotating pulley, and the rotating pulley is provided with an anti-falling speed limiting device for limiting the relative movement of the first transmission member and / or the second transmission member.

9. The pallet lifter according to claim 1, characterized in that: A protective net is provided on at least one side of the main frame, and the main frame cooperates with the protective net to form an installation space for arranging the lifting conveyor.

10. The pallet lift according to any one of claims 1 to 9, characterized in that: The lifting conveyor comprises: A lifting frame is formed with an accommodating space; A plurality of rollers are arranged at the bottom of the accommodation space, and the rollers are connected to each other in a transmission manner; The second motor is drivingly connected to at least one of the roller shafts.

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