A double-station hoist

Abstract

The present invention relates to the field of logistics warehousing technology, and discloses a double-station elevator, including a support column, a loading platform, and a driving module. The loading platform is slidably connected to the support column, and the top of the support column is fixedly connected to the driving module. The driving module is connected to a transmission belt, one end of the transmission belt is fixedly connected to a counterweight block, and the other end of the transmission belt is fixedly connected to the rear end of the loading platform. Two or more groups of loading platforms are arranged, and connecting plates are fixedly arranged between the two or more groups of loading platforms. Strip plug plates are fixedly arranged on the loading platforms, and a conveyor line is also arranged under the loading platforms, and slots matching the strip plug plates are opened on both sides of the conveyor line. The elevator in the present invention can adapt to different types of stacker forks, and when the loading platform picks up and puts goods on the conveyor line, two pieces of goods can be picked up and put at the same time during a single lifting process, which greatly saves the time for picking up and putting goods and improves the working efficiency of the elevator.

Description

Technical Field

[0001] The invention relates to the technical field of logistics warehousing, and in particular to a double-station hoist. Background Art

[0002] Hoist is a common material conveying equipment, mainly used for lifting and conveying materials in vertical or inclined directions, such as mine hoists, dam hoists, etc. It completes the transportation process by dragging the flexible wire rope and the transported goods up and down through a power machine. The hoist used in conjunction with the stacker to the conveyor line is usually the lifting mechanism of the stacker, which is used to achieve vertical lifting of materials.

[0003] However, during the use of the existing elevator, a single cycle of picking up and placing goods can only pick up and place one piece of goods, which is inefficient. For example, Chinese patent CN107352466B proposes a stacker and an automated three-dimensional warehouse that are convenient for storing and picking up goods, including multiple three-dimensional storage shelves and at least two stackers, at least two rows of tracks are arranged in parallel between two adjacent three-dimensional storage shelves, and each row of tracks is provided for a corresponding stacker to travel; wherein, the stacker comprises: a main frame, provided with a connecting piece, the main frame comprises a column, the connecting piece is meshed with the column, and the connecting piece is annular; a loading platform, through The connecting piece is installed on the main frame. During the use of the invention, when used in conjunction with a stacker, only a single pick-up can be performed, which reduces the working efficiency of the stacker. When the stacker used in conjunction with the elevator is a double-station stacker that can pick up and place two items at a time, this elevator will seriously reduce the working efficiency of the double-station stacker. At the same time, the current stacker usually has a variety of forks, and the elevator also needs to replace the plug plate according to the stacker with different fork types. When the stacker uses a mixed fork (such as a plate fork or a clamping fork), the plug plate of the elevator needs to be replaced, which affects the efficiency of placing goods using a mixed fork stacker. In addition, in some warehouses, various types and specifications of goods are stored. The height of these goods varies due to their own size and design differences. Some goods may be tall mechanical parts, while others may be flat boxes or packages. Large goods have greater momentum when moving quickly due to their volume and weight. When the elevator is rapidly accelerated or decelerated, large goods will produce obvious shaking due to inertia. This shaking not only affects the stability of transportation, but may also cause damage to the elevator and the goods themselves. Summary of the invention

[0004] (I) Technical problems to be solved: In view of the shortcomings of the prior art, the present invention provides a double-station elevator, which has the advantages of improving the cargo picking rate of the elevator and being able to adapt to different types of plug boards, thereby solving the problems of low efficiency of picking and placing goods by the existing elevator when facing multiple pieces of goods and inability to adapt to different types of plug boards.

[0005] (II) Technical solution: In order to achieve the above-mentioned purpose of increasing the picking rate of goods by the elevator and being able to adapt to different types of plug boards, the present invention provides the following technical solution: a double-station elevator, including a support column, a loading platform, and a driving module, the support column is slidably connected to the loading platform, the top of the support column is fixedly connected to the driving module, the driving end of the driving module is connected to a transmission belt, one end of the transmission belt is fixedly connected to a counterweight block, and the other end of the transmission belt is fixedly connected to the rear end of the loading platform, and the driving module drives the transmission belt to drive the loading platform along the vertical direction of the support column Sliding, two or more groups of the loading platform are equidistantly arranged in the vertical direction, and a connecting plate is fixedly arranged between the two or more groups of loading platforms, two groups of strip plug boards for placing goods are fixedly arranged on the loading platform, the strip plug boards are arranged along the horizontal direction of the loading platform and are spaced apart, a stacker is arranged on one side of the strip plug boards, a conveyor line is also arranged under the loading platform, conveyor rollers are arranged on the conveyor line, and slots matching the strip plug boards are opened on both sides of the conveyor line, when the loading platform is descending, the two groups of strip plug boards on the loading platforms are inserted into the slots in an up-and-down order.

[0006] Preferably, the loading platform is divided into an upper platform and a lower platform, the upper platform and the lower platform are L-shaped, and the L-shaped long side of the upper platform is longer than the L-shaped long side of the lower platform, the upper and lower widths of the L-shaped short sides of the upper platform are longer than the upper and lower widths of the L-shaped long sides of the upper platform, two groups of the strip plug boards are fixedly installed below the L-shaped short sides of the upper platform, and two groups of the strip plug boards are fixedly installed above the L-shaped short sides of the lower platform, the length of the strip plug boards installed on the upper platform is longer than the strip plug boards installed on the lower platform, and the two groups of the strip plug boards installed on the upper platform are The spacing between the plug plates is smaller than the spacing between the two groups of the strip plug plates installed on the lower platform, and an embedding groove matching the position of the strip plug plates on the upper platform is opened on the L-shaped short side of the lower platform, and the connecting plate is a telescopic arm plate, which controls the distance between the upper platform and the lower platform. When the connecting plate is fully retracted, the strip plug plates installed on the upper platform are inserted into the embedding grooves; when the driving module drives the stage to move through the transmission belt, the connecting plate drives the lower platform to form a differential motion between the upper platform and the lower platform.

[0007] Preferably, the stacker is a hybrid fork, and the hybrid fork includes a plate fork and a clamping fork, and the interval between the two groups of strip inserts is greater than the standard width of the plate fork of the stacker.

[0008] Preferably, the interval between the two groups of strip-shaped plug plates is smaller than the width of the cargo.

[0009] Preferably, switch sensors are fixedly installed on the upper platform and the lower platform.

[0010] Preferably, support wheels are provided at both rear ends of the upper platform and the lower platform, and the support wheels are slidably connected to the support columns.

[0011] Preferably, two groups of support columns are provided, and a sliding track is provided between the two groups of support columns, the top of the sliding track is fixedly connected to the driving module, the two ends of the bottom of the sliding track are fixedly connected to the support columns, and several groups of pulleys are provided at both ends of the counterweight block, and the pulleys are slidably connected to the sliding track.

[0012] (III) Beneficial effects: Compared with the prior art, the present invention provides a double-station elevator with the following beneficial effects: 1. The double-station elevator, through the coordinated use of the conveyor line structure and the loading platform structure, when the stacker uses a plate fork to pick up and place goods, the plate fork can be located between the two groups of strip plug plates on the loading platform, and when the stacker uses a clamping fork, the clamping forks on both sides can be located at the two ends of the two groups of strip plug plates respectively, which enables the elevator to adapt to different types of stacker forks without replacing or adjusting the equipment, thereby improving the efficiency of picking up and placing goods between the stacker and the elevator, and when the loading platform picks up and places goods on the conveyor line, the strip plug plates on the upper platform and the lower platform can be inserted under the conveyor line through the slot structure, which enables the elevator to pick up and place two pieces of goods at the same time during a single lifting process. Compared with traditional elevators that require multiple lifts to pick up and place different goods, this design greatly saves the time for picking up and placing goods and improves the working efficiency of the elevator.

[0013] 2. The double-station elevator uses a connecting plate structure and a loading platform structure in coordination. When the lower platform takes or places large goods, the lower platform is controlled by the telescopic arm plate so that the strip plug on the upper platform is clamped on the top of the large goods, thereby reducing the shaking of the large goods when taking or placing goods; and the lower platform does not need to be lowered below the conveyor line when descending, but only needs to be flush with the conveyor line. Even if the height of the conveyor line is low, the elevator can effectively place the goods, thereby improving space utilization and height adaptability; at the same time, during the descent of the loading platform, the upper platform is driven by the transmission belt to maintain the original speed, while the lower platform is gradually decelerated by the control of the connecting plate relative to the upward movement of the upper platform, which forms a differential motion between the upper platform and the lower platform. The existence of the differential motion allows the upper platform to continue to descend without affecting the stability of the lower platform, thereby reducing the shaking or tilting caused by multiple large changes in speed, thereby improving the working efficiency of the entire elevator and the stability of picking up goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention.

[0015] Figure 2 This is a structural front view of a stacker in an embodiment of the present invention when releasing goods to an elevator.

[0016] Figure 3 This is a structural side view of a stacker in an embodiment of the present invention when releasing goods to an elevator.

[0017] Figure 4 This is a front view of the lifting machine of Example 1 of the present invention when it is descending.

[0018] Figure 5 It is a left side view of the structure of embodiment 2 of the present invention.

[0019] Figure 6 This is a front view of the structure of Example 2 of the present invention.

[0020] Figure 7 It is a right side view of the structure of embodiment 2 of the present invention.

[0021] Figure 8 This is a local detail diagram of the strip-shaped plug-in board structure when being inserted into the embedded slot structure in Example 2 of the present invention.

[0022] Fig. 9 This is a schematic diagram of the strip-shaped plug-in board structure of the second embodiment of the present invention when it is inserted into the embedded slot structure.

[0023] Fig.10 This is a schematic diagram of a second embodiment of the present invention in which a strip-shaped plug-in structure is overlapped and inserted into a slot structure.

[0024] In the figure: 1. Support column; 2. Drive module; 3. Drive belt; 31. Counterweight; 32. Pulley; 4. Stacker; 41. Plate fork; 42. Clamping fork; 5. Conveyor line; 51. Slot; 6. Loading platform; 61. Connecting plate; 62. Strip plug plate; 63. Upper platform; 64. Lower platform; 65. Embedded slot; 7. Switch sensor; 8. Support wheel; 9. Sliding track; 10. Cargo. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figure 1-Figure 4A double-station hoist includes a support column 1, a loading platform 6, and a driving module 2. The loading platform 6 is slidably connected to the support column 1, and the driving module 2 is fixedly connected to the top of the support column 1. The driving end of the driving module 2 is connected with a transmission belt 3. The driving module 2 is connected through the transmission belt 3 to achieve power transmission and conversion. The transmission belt 3 can smoothly and continuously transmit the driving force, so that the loading platform 6 can achieve stable lifting and lowering movement on the support column 1. A counterweight block 31 is fixedly connected to one end of the transmission belt 3, and the other end of the transmission belt 3 is fixedly connected to the rear end of the loading platform 6. The design of the counterweight block 31 is to balance the weight of the transmission belt 3 and the loading platform 6, and reduce the burden of the driving module 2. When the loading platform 6 rises, the counterweight block 31 falls accordingly, and gravity is used to assist the driving module 2 to work; conversely, when the loading platform 6 falls, the counterweight block 31 rises, and also plays a role in balancing the weight, thereby improving the stability and operation efficiency of the hoist. The driving module 2 drives the transmission belt 3 to drive the loading platform 6 to slide along the vertical direction of the support column 1. The sliding design in the vertical direction is to realize the vertical lifting of the goods 10, which is convenient for docking with the stacker 4 and the conveyor line 5. This design can ensure that the goods 10 maintain a stable posture during the lifting process and reduce shaking or tilting. Two or more groups of loading platforms 6 are equidistantly arranged in the vertical direction. The equidistant arrangement of multiple groups of loading platforms 6 can improve the storage and transportation capacity of the elevator. Multiple groups of loading platforms 6 can work at the same time to realize continuous lifting and transportation of goods 10 and improve overall work efficiency. At the same time, the equidistant arrangement also helps to maintain the balance and stability of the system. A connecting plate 61 is fixedly arranged between two or more groups of loading platforms 6. The design of the connecting plate 61 is to strengthen the structural connection between the loading platforms 6 and improve the overall stability. The connecting plate 61 can also serve as a support and guide structure for the transmission belt 3 to ensure that the transmission belt 3 maintains the correct path and tension during the lifting process. Two groups of strip plugs 62 for placing goods 10 are fixedly arranged on the loading platform 6. The design of the strip plugs 62 is to facilitate the placement and fixation of the goods 10. The two groups of strip plugs 62 can carry the upper and lower layers of goods 10 respectively, so as to realize the layered storage and transportation of the goods 10. The strip plugs 62 are arranged in the horizontal direction of the loading platform 6 and there are intervals between them. The horizontal strip plugs 62 are designed to facilitate the picking and placing of goods by the stacker 4. The intervals are set to meet the needs of goods 10 of different sizes and ensure that the goods 10 can be stably placed on the strip plugs 62. The stacker 4 is arranged on one side of the strip plugs 62, and a conveyor line 5 is also arranged under the loading platform 6. The conveyor line 5 is provided with a conveying roller, and slots 51 matching the strip plugs 62 are opened on both sides of the conveyor line 5. The slots 51 are designed to improve the working efficiency of the loading platform 6 and the conveyor line 5. When the loading platform 6 is lowered, the strip plug 62 can be inserted into the slot 51 of the conveyor line 5, so that the double-layer loading platform 6 can be lifted and lowered only once when picking up and placing goods. When the loading platform 6 is lowered, the strip plugs 62 on the two sets of loading platforms 6 are inserted into the slot 51 in an upper and lower order.

[0027] See also Figure 1-Figure 4 The stacker 4 is a hybrid fork, and the hybrid fork includes a plate fork 41 and a clamping fork 42. The interval between the two sets of strip inserts 62 is greater than the standard width of the plate fork 41 of the stacker 4. Figure 3 As shown. The interval between the two groups of strip plugs 62 is designed to be larger than the standard width of the plate fork 41 of the stacker 4 in order to ensure that the plate fork 41 of the stacker 4 can pass smoothly between the two groups of strip plugs 62. The interval between the two groups of strip plugs 62 is smaller than the width of the goods 10. The interval between the two groups of strip plugs 62 is designed to be smaller than the width of the goods 10 in order to ensure that the goods 10 can be stably placed on the strip plugs 62 without slipping or tilting. There are two groups of support columns 1, and a sliding track 9 is provided between the two groups of support columns 1. The two groups of support columns 1 can jointly bear the weight of the loading platform 6 and the impact force during the lifting process, thereby ensuring the stability and safety of the elevator. The top of the sliding track 9 is fixedly connected to the driving module 2, and the two ends of the bottom of the sliding track 9 are fixedly connected to the support column 1. A plurality of groups of pulleys 32 are provided at both ends of the counterweight block 31, and the pulleys 32 are slidably connected to the sliding track 9. The design of the counterweight 31 is provided with a plurality of pulleys 32 at both ends, and the pulleys 32 are slidably connected to the sliding track 9 in order to achieve the smooth movement of the counterweight 31 and reduce the friction resistance. As a part of the transmission belt 3, the counterweight 31 needs to move with the movement of the transmission belt 3. Through the cooperation of the pulley 32 and the sliding track 9, the friction resistance between the counterweight 31 and the sliding track 9 can be reduced, and the energy consumption and wear can be reduced. At the same time, the pulley 32 can also ensure the stability and accuracy of the counterweight 31 during the movement, thereby improving the operation efficiency of the entire hoist.

[0028] Example 2: Please refer to Figure 5-Figure 10The loading platform 6 is divided into an upper platform 63 and a lower platform 64. The purpose of dividing the upper platform 63 and the lower platform 64 is to be able to handle two pieces of goods 10 at the same time during a lifting process. The upper platform 63 and the lower platform 64 are L-shaped. The L-shaped design allows the upper platform 63 and the lower platform 64 to overlap in the vertical direction, thereby saving space. In addition, the L-shaped design is also convenient for docking with the conveyor line 5, so that the goods 10 can be smoothly transferred from the loading platform 6 to the conveyor line 5. The L-shaped long side of the upper platform 63 is longer than the L-shaped long side of the lower platform 64, and the upper and lower widths of the L-shaped short side of the upper platform 63 are longer than the upper and lower widths of the L-shaped long side of the upper platform 63. Such a design can prevent the L short sides of the upper platform 63 and the lower platform 64 from colliding during the overlapping process. Two groups of strip plugs 62 are fixedly installed below the L-shaped short side of the upper platform 63, and two groups of strip plugs 62 are fixedly installed above the L-shaped short side of the lower platform 64. The strip plugs 62 installed on the upper platform 63 are longer than the strip plugs 62 installed on the lower platform 64, and the interval between the two groups of strip plugs 62 installed on the upper platform 63 is smaller than the interval between the two groups of strip plugs 62 installed on the lower platform 64. This allows the strip plugs 62 of the upper platform 63 to be removed into the embedding groove 65 of the lower platform 64 without obstacles during the descent of the upper platform 63, and the L-shaped short side of the lower platform 64 is provided with a groove 65 that is compatible with the lower platform 64. The upper platform 63 has an embedded groove 65 that matches the position of the strip plug plate 62. The embedded groove 65 is designed so that when the upper platform 63 descends, the strip plug plate 62 thereon can be smoothly inserted into the embedded groove 65 of the lower platform 64. The connecting plate 61 is a telescopic arm plate. By adjusting the length of the telescopic arm plate, the relative movement speed and relative position between the upper platform 63 and the lower platform 64 can be controlled. The connecting plate 61 controls the distance between the upper platform 63 and the lower platform 64. When the connecting plate 61 is fully retracted, the strip plug plate 62 installed on the upper platform 63 is inserted into the embedded groove 65. Fig. 9 and Fig.10As shown; during the movement of the loading platform 6 driven by the driving module 2 through the transmission belt 3, the connecting plate 61 drives the lower platform 64 to form a differential motion between the upper platform 63 and the lower platform 64. A switch sensor 7 is fixedly installed on the upper platform 63 and the lower platform 64. The switch sensor 7 is fixedly installed on the upper platform 63 and the lower platform 64 to achieve automatic control and monitoring. The switch sensor 7 can detect the position of the loading platform 6, the presence or absence of the goods 10, and the status of the stacker 4 and the conveyor line 5. Through this information, the control system can automatically adjust the operating state of the elevator to ensure the accuracy and efficiency of picking and releasing goods. Support wheels 8 are provided at both ends of the rear of the upper platform 63 and the lower platform 64. The support wheels 8 are designed to be provided at both ends of the rear of the upper platform 63 and the lower platform 64 to achieve smooth sliding of the loading platform 6 on the support column 1. The support wheel 8 can reduce the friction between the loading platform 6 and the support column 1, reduce wear and noise, and improve the smoothness and stability of sliding. In this way, the loading platform 6 can be raised and lowered more efficiently, thereby improving the performance of the entire elevator. The support wheel 8 is slidably connected to the support column 1. The support wheel 8 is designed to be slidably connected to the support column 1 to ensure that the loading platform 6 can be smoothly raised and lowered along the axis direction of the support column 1. The support column 1, as a supporting structure of the loading platform 6, needs to have sufficient strength and stability. Through the sliding connection, the support wheel 8 can slide smoothly along the surface of the support column 1, thereby realizing the lifting and lowering movement of the loading platform 6.

[0029] Working principle: During use, the elevator needs to be used together with the double-station stacker 4 and the conveyor line 5. The elevator in the present invention needs to be arranged between the stacker 4 and the conveyor line 5. During use, the stacker 4 moves to the elevator position after completing the picking, and then the stacker 4 uses its plate-type plug-in plate and cargo clamping type plug-in plate to place the upper goods 10 and the lower goods 10 on the waiting elevator loading platform 6 strip plug-in plate 62. After the elevator completes receiving the goods, the driving module 2 drives the transmission belt 3 to drive the loading platform 6 to descend, and places the goods 10 on the lower platform 64 on the conveyor line 5, and the conveyor line 5 transports the goods 10 to the delivery port. At this time, the strip plug-in plate 62 of the lower platform 64 is inserted into the slot 51 of the conveyor line 5, and then the driving module 2 drives the transmission belt 3 again to drive the loading platform 6 to descend, so that the goods 10 on the upper platform 63 are also placed on the conveyor line 5, and the conveyor line 5 is started again to transport the goods 10 placed on the upper platform 63 to the delivery port. At this time, the strip plug-in plate 62 of the upper platform 63 is also inserted into the slot 51 of the conveyor line 5. After the goods 10 are completely delivered, the elevator resets the loading platform 6 to the waiting position, waiting for the stacker 4 to release the goods. The picking process is opposite to the above process. Among them, when the stacker 4 uses the plate fork 41 to pick up and place the goods, the plate fork 41 can be located between the two groups of strip plugs 62 on the loading platform 6. When the stacker 4 uses the clamping fork 42, the clamping forks 42 on both sides can be located at the two ends of the two groups of strip plugs 62. This design enables the elevator to adapt to different types of stacker 4 forks without replacing or adjusting the equipment, thereby improving the efficiency of picking and placing goods between the stacker 4 and the elevator. In addition, a slot 51 structure matching the strip plug 62 is provided on the conveyor line 5. This design enables the loading platform 6 to pick up and place goods on the conveyor line 5. The strip plugs 62 on the upper platform 63 and the lower platform 64 can be inserted into the lower part of the conveyor line 5 through the slot 51 structure, which enables the elevator to pick up and place two pieces of goods 10 at the same time during a single lifting process. Compared with the traditional elevator that needs to be lifted multiple times to pick up and put different goods 10, this design greatly saves the time of picking up and putting away goods and improves the working efficiency of the elevator.

[0030] When the connecting plate 61 connected between the upper platform 63 and the lower platform 64 uses a telescopic arm plate, when the lower platform 64 takes and places the large cargo 10, the distance between the upper platform 63 and the lower platform 64 is controlled by the telescopic arm plate, so that the strip plug plate 62 on the upper platform 63 is clamped on the top of the large cargo 10, reducing the shaking of the large cargo 10 when taking and placing the cargo. In the warehouse, due to space limitations or equipment layout requirements, the height of the conveyor line 5 may be limited, and the elevator design in the first embodiment requires a larger space under the conveyor line 5 to lower the loading platform 6 as a whole. In the present invention, by using a telescopic arm plate as the connecting plate 61, the cargo 10 can still be effectively placed when the height of the conveyor line 5 is relatively low. After the strip plug plate 62 of the lower platform 64 moves into the slot 51 of the conveyor line 5, the connecting plate 61 shrinks, so that the lower platform 64 remains stationary relative to the conveyor line 5. In this way, the upper platform 63 can continue to descend until the strip plug 62 of the upper platform 63 is inserted into the embedding groove 65, at which time the strip plug 62 of the upper platform 63 overlaps with the strip plug 62 of the lower platform 64, so the lower platform 64 does not need to descend below the conveyor line 5 when descending, but only needs to be flush with the conveyor line 5. In this way, even if the height of the conveyor line 5 is low, the elevator can effectively place the goods 10, thereby improving space utilization and height adaptability. During the descent of the loading platform 6, the upper platform 63 is driven by the transmission belt 3 to maintain the original speed, while the lower platform 64 is controlled by the connecting plate 61 to move upward relative to the upper platform 63 and gradually decelerate. This forms a differential motion between the upper platform 63 and the lower platform 64. The existence of the differential motion allows the upper platform 63 to continue to descend without affecting the stability of the lower platform 64, thereby improving the working efficiency of the entire elevator. At the same time, this design also helps to maintain the stability of the goods 10 during the process of picking up and placing goods, and reduce the shaking or tilting caused by multiple large changes in speed. During the ascent of the loading platform 6, the above process is reversed.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-station lifting machine, comprising a support column (1), a loading platform (6), and a driving module (2), wherein the support column (1) is slidably connected to the loading platform (6), and the top of the support column (1) is fixedly connected to the driving module (2), characterized in that: The driving end of the driving module (2) is connected to a transmission belt (3), one end of the transmission belt (3) is fixedly connected to a counterweight (31), and the other end of the transmission belt (3) is fixedly connected to the rear end of the loading platform (6), the loading platforms (6) are arranged in two or more groups equidistantly in the vertical direction, and a connecting plate (61) is fixedly arranged between the two or more groups of loading platforms (6), two groups of strip plug plates (62) are fixedly arranged on the loading platform (6), a conveyor line (5) is arranged below the loading platform (6), and slots (51) matching the strip plug plates (62) are opened on both sides of the conveyor line (5), and when the loading platform (6) is lowered, the strip plug plates (62) on the two groups of loading platforms (6) are inserted into the slots (51) in an upper and lower order; The loading platform (6) is divided into an upper platform (63) and a lower platform (64); the upper platform (63) and the lower platform (64) are L-shaped, and the L-shaped long side of the upper platform (63) is longer than the L-shaped long side of the lower platform (64); the upper and lower widths of the L-shaped short sides of the upper platform (63) are longer than the upper and lower widths of the L-shaped long sides of the upper platform (63); two groups of the strip plugging plates (62) are fixedly installed below the L-shaped short sides of the upper platform (63); two groups of the strip plugging plates (62) are fixedly installed above the L-shaped short sides of the lower platform (64); the length of the strip plugging plates (62) installed on the upper platform (63) is longer than the length of the strip plugging plates (62) installed on the lower platform (64); the two groups of the strip plugging plates (62) installed on the upper platform (63) are closely spaced. The two groups of strip-shaped plug plates (62) installed on the lower platform (64) are spaced apart, and an embedding groove (65) matching the position of the strip-shaped plug plates (62) on the upper platform (63) is provided on the L-shaped short side of the lower platform (64); the connecting plate (61) is a telescopic arm plate, and the connecting plate (61) controls the distance between the upper platform (63) and the lower platform (64); when the connecting plate (61) is fully retracted, the strip-shaped plug plates (62) installed on the upper platform (63) are inserted into the embedding groove (65); when the driving module (2) drives the loading platform (6) to move through the transmission belt (3), the connecting plate (61) drives the lower platform (64) to form a differential motion between the upper platform (63) and the lower platform (64).

2. A double-station hoist according to claim 1, characterized in that: A stacker (4) is provided on one side of the strip-shaped inserting plate (62); the stacker (4) is a hybrid fork, and the hybrid fork comprises a plate fork (41) and a clamping fork (42).

3. A double-station hoist according to claim 1, characterized in that: The interval between the two groups of strip-shaped inserting plates (62) is smaller than the width of the cargo (10).

4. A double-station hoist according to claim 1, characterized in that: Switch sensors (7) are fixedly mounted on the upper platform (63) and the lower platform (64).

5. A double-station hoist according to claim 1, characterized in that: Support wheels (8) are provided at both rear ends of the upper platform (63) and the lower platform (64), and the support wheels (8) are slidably connected to the support columns (1).

6. A double-station hoist according to claim 1, characterized in that: The support column (1) is provided with two groups, and a sliding track (9) is provided between the two groups of the support columns (1); the top of the sliding track (9) is fixedly connected to the driving module (2); the bottom ends of the sliding track (9) are fixedly connected to the support column (1); and a plurality of groups of pulleys (32) are provided at both ends of the counterweight block (31); the pulleys (32) are slidably connected to the sliding track (9).

7. A double-station hoist according to claim 1, characterized in that: The conveyor line (5) is provided with a conveying roller.

8. A double-station hoist according to claim 2, characterized in that: The two groups of strip-shaped plug plates (62) are arranged in a horizontal direction with a gap between them, the gap between the two groups of strip-shaped plug plates (62) is greater than the width of the plate-type fork (41) of the stacker (4), and goods are placed above the strip-shaped plug plates (62).

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