Telescopic fork mechanism for intelligent stacker

Abstract

The application discloses a telescopic fork mechanism used on an intelligent stacking machine and relates to the technical field of forks. The telescopic fork mechanism comprises a fork body, the fork body comprises a fork base, a first fork plate arranged on the fork base, a second fork plate arranged on the first fork plate and a plurality of fork structures arranged on the second fork plate, a linkage mechanism, the linkage mechanism comprises two groups of guide pulleys arranged on the first fork plate and a transmission belt arranged on the guide pulleys, the first end of the transmission belt is connected with the fork base, the second end of the transmission belt is connected with the second fork plate, the transmission belt is in a U-shaped opening structure, and the opening ends of the U-shaped opening are oppositely arranged, and a driving mechanism, the driving mechanism comprises a driving motor arranged on the fork base and a transmission assembly arranged on the output shaft of the driving motor. By starting the driving motor, the transmission assembly can drive the first fork plate to realize telescopic sliding relative to the fork base, and meanwhile, the second fork plate is telescopic and slides relative to the first fork plate under the action of the transmission belt.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forks, more particularly, it relates to a telescopic fork mechanism used on an intelligent stacking machine. BACKGROUND

[0002] At present, the existing forks usually adopt chain transmission, which has high manufacturing and installation and maintenance costs, is easy to wear and elongate, has poor transmission stability, generates additional dynamic load, vibration, impact and noise during operation, and is prone to rusting, wearing and corrosion in the case of harsh working conditions, such as corrosion medium and water leakage. Most of the forks are non-standard customized, and the stroke of each fork is fixed and cannot be adjusted, and the extension length cannot be modified, which cannot meet the distance change after adjusting the left and right distances of the vertical warehouse. Moreover, in order to realize the loading and unloading of goods on the shelves on both sides of the stacking machine, the existing telescopic fork generally sets the fork driving source at the middle position and realizes telescopic adjustment through the wheel connection, so that the fork is adjusted to the limit distance on the left side or the right side, thereby realizing the loading and unloading action. However, this design causes the telescopic stroke limit position of the fork to be short, thereby limiting the adjustable limit distance of the shelves on both sides and the stacking level of the goods on the shelves, thereby limiting the space utilization rate and the upper limit of the intelligent warehousing.

[0003] Chinese Patent No. CN113772591A discloses a stacking machine fork, an automatic stacking machine and an automatic stacking system. The stacking machine fork comprises a first fork mechanism, a second fork mechanism, a base mechanism and a driving mechanism. The first fork mechanism comprises a first fork plate and a first sliding structure arranged on the first fork plate. The second fork mechanism comprises a second fork plate, a second sliding structure arranged on the second fork plate and a third sliding structure. The base mechanism comprises a base and a fourth sliding structure arranged on the base. The driving mechanism comprises a first driving structure and a second driving structure. The invention provides a stacking machine fork which can drive two fork plates to extend or retract through the sliding mode by the driving mechanism, and the transmission is more stable. However, it has the disadvantage of being able to realize loading and unloading of goods on a single shelf. SUMMARY

[0004] In order to overcome the above technical deficiencies, a telescopic fork mechanism used on an intelligent stacking machine is provided, which can realize the adjustment of the telescopic fork to the left side or the right side while realizing the telescopic adjustment of the far limit position of the fork, thereby improving the adjustable distance of the shelves on both sides and the stacking level of the goods on the shelves, and improving the space utilization rate and the upper limit of the intelligent warehousing.

[0005] In order to solve the above technical problems, the present application adopts the following technical scheme: a telescopic fork mechanism used on an intelligent stacking machine, comprising a fork body, the fork body comprising a fork base, a first fork plate arranged on the fork base, a second fork plate arranged on the first fork plate, and a plurality of fork structures arranged on the second fork plate; a linkage mechanism comprising two groups of guide pulleys arranged on the first fork plate and a transmission belt arranged on the guide pulleys, the first end of the transmission belt being connected with the fork base, the second end of the transmission belt being connected with the second fork plate, the transmission belt being in a U-shaped opening structure after being connected, and the opening ends of the U-shaped opening structures of the two groups of transmission belts being oppositely arranged; and a driving mechanism comprising a driving motor arranged on the fork base and a transmission assembly arranged on the output shaft of the driving motor, the transmission assembly being capable of driving the first fork plate to realize telescopic sliding relative to the fork base by starting the driving motor, and the second fork plate being capable of realizing telescopic sliding relative to the first fork plate under the action of the transmission belt.

[0006] The present application provides a telescopic fork mechanism used on an intelligent stacking machine, the telescopic fork mechanism in the present scheme being arranged on a cargo carrying table in the intelligent stacking machine, the cargo carrying table comprising a cargo carrying table body and two groups of fork bodies arranged on the cargo carrying table body, a cargo conveying mechanism being arranged at the middle position of the cargo carrying table body, the two groups of fork bodies being arranged on the conveying mechanism on both sides of the cargo carrying table body, a chain driving mechanism being arranged on the cargo carrying table, the chain driving mechanism being capable of enabling the fork bodies to realize a loading action of moving towards each other or an unloading action of moving away from each other; the intelligent stacking machine further comprising a gantry mechanism, the mechanism being capable of realizing overall lifting adjustment of the cargo carrying table, this part of structure being prior art, which will not be described herein; the fork body further comprising two groups of slide rail supports one arranged fixedly on the fork base, the two groups of slide rail supports one being arranged in parallel, two groups of guide sliding members one being arranged on the first fork plate and being arranged in sliding mode on the slide rail supports one, two groups of slide rail supports two being arranged on the first fork plate and being arranged in parallel, two groups of guide sliding members two being arranged on the second fork plate and being arranged in sliding mode on the slide rail supports two; the second fork plate being provided with a protective shell, the protective shell being provided with three fork placement grooves for rotation and folding. The structure design of the fork body in the present application can enable the fork to realize left or right adjustment, and can also realize foldable distance and foldable efficiency of the fork through the linkage mechanism, and can effectively improve the limit distance of the fork telescopic adjustment, and indirectly improve the adjustable limit distance of the two side shelves and the stacking level of the goods on the shelves, so as to improve the space utilization rate of the intelligent warehouse and the upper limit of the intelligent warehouse storage.

[0007] As preferred, the transmission assembly comprises a gear box arranged on the fork base and a rack push plate arranged on the first fork plate, the gear box comprises a gear box body, a first gear arranged in the gear box body and a plurality of second gears arranged in the gear box body, the first gear is connected with the output shaft of the driving motor, the first gear is in meshing connection with the second gears, and the second gears are in meshing connection with the rack on the rack push plate. There are two second gears, which are respectively arranged in the gear box body on both sides of the first gear; when the driving motor starts, it will drive the first gear to rotate, the first gear drives the second gears to rotate, and the second gears drive the rack push rod to move left or right, thereby driving the first fork plate to realize the telescopic movement relative to the fork base.

[0008] As preferred, the fork structure comprises a servo motor arranged on the second fork plate, a fixed block arranged on the second fork plate, and a shaft coupling arranged on the fixed block, one end of the shaft coupling is connected with the output shaft of the servo motor, and the other end is connected with a rotating body. When the servo motor starts, it will drive the shaft coupling to rotate, and the shaft coupling drives the rotating body to rotate. The rotating body is used for grabbing goods. When the rotating body is connected with the second fork plate at a 90° angle, the rotating body is unfolded, and at this time, the two fork bodies can realize loading and unloading operations. When the rotating body is connected with the second fork plate at a 0° angle, the rotating body is retracted to avoid interference, which is convenient for the transportation of goods and the loading and unloading operation of the fork body.

[0009] As preferred, the second fork plate is provided with a detection mechanism, the detection mechanism comprises a mounting bracket arranged on the second fork plate and a plurality of sensors one arranged on the mounting bracket, the shaft coupling is provided with a rotating rod, and the position of the rotating rod can be detected by the sensor one to realize the in-place detection of the rotating body. There are two sensors one, which are in place to block the rotating rod to realize the position detection of the unfolding or retraction of the rotating body, and the intelligent level is provided.

[0010] As preferred, the second fork plate is provided with a buffer mechanism at both ends, the buffer mechanism comprises a mounting body fixedly arranged on the second fork plate and a plurality of sliding rods slidingly arranged on the mounting body, the end of the sliding rod is provided with a damping plate, and a damping spring sleeved outside the sliding rod is arranged between the mounting body and the damping plate. The design of the buffer mechanism can prevent the end of the second fork plate from directly colliding with the goods, which is conducive to realizing the buffer protection of the goods and the second fork.

[0011] As preferred, the wall body near the damping plate side is provided with sensor two and a buffer head, and the buffer head has a longer extension length than sensor two. The design of the buffer head can realize the compression limiting of the damping plate, and also can play the role of anti-collision protection for sensor two; sensor two is a proximity switch, and sensor two can detect the compression distance of the damping plate, and when the compression distance is less than 4mm, sensor two triggers an alarm signal, thereby realizing alarm maintenance, and at the same time, the control system controls the second fork plate to stop extension and retraction.

[0012] As preferred, the wall body near the damping plate side is provided with sensor two and a buffer head, and the buffer head has a longer extension length than sensor two. The design of the buffer head can realize the compression limiting of the damping plate, and also can play the role of anti-collision protection for sensor two; sensor two is a proximity switch, and sensor two can detect the compression distance of the damping plate, and when the compression distance is less than 4mm, sensor two triggers an alarm signal, thereby realizing alarm maintenance, and at the same time, the control system controls the second fork plate to stop extension and retraction.

[0013] As preferred, the wall body near the damping plate side is provided with sensor two and a buffer head, and the buffer head has a longer extension length than sensor two. The design of the buffer head can realize the compression limiting of the damping plate, and also can play the role of anti-collision protection for sensor two; sensor two is a proximity switch, and sensor two can detect the compression distance of the damping plate, and when the compression distance is less than 4mm, sensor two triggers an alarm signal, thereby realizing alarm maintenance, and at the same time, the control system controls the second fork plate to stop extension and retraction.

[0014] As preferred, the wall body near the damping plate side is provided with sensor two and a buffer head, and the buffer head has a longer extension length than sensor two. The design of the buffer head can realize the compression limiting of the damping plate, and also can play the role of anti-collision protection for sensor two; sensor two is a proximity switch, and sensor two can detect the compression distance of the damping plate, and when the compression distance is less than 4mm, sensor two triggers an alarm signal, thereby realizing alarm maintenance, and at the same time, the control system controls the second fork plate to stop extension and retraction.

[0015] As preferred, the wall body near the damping plate side is provided with sensor two and a buffer head, and the buffer head has a longer extension length than sensor two. The design of the buffer head can realize the compression limiting of the damping plate, and also can play the role of anti-collision protection for sensor two; sensor two is a proximity switch, and sensor two can detect the compression distance of the damping plate, and when the compression distance is less than 4mm, sensor two triggers an alarm signal, thereby realizing alarm maintenance, and at the same time, the control system controls the second fork plate to stop extension and retraction.

[0016] Compared with the prior art, the present application has the following beneficial effects: (1) The linkage mechanism is arranged in the present application, so that the first fork plate can be adjusted to the left side or the right side, and the second fork plate can be adjusted to extend or retract relative to the first fork plate under the action of the transmission belt, so that the extension distance and extension efficiency of the rotating body on the fork structure can be doubled, and the limit distance of the extension adjustment of the fork is effectively improved, so that the fork can realize the transportation and carrying of packaging boxes of multiple specifications, and the adjustable limit distance of the two side shelves and the stacking level of the goods on the shelves are indirectly improved, so that the space utilization rate of the intelligent warehouse and the upper limit of the intelligent warehouse storage are improved; (2) The fork structure is arranged in the present application, the rotating body is adjusted to rotate by the servo motor, and then the detection mechanism can be matched to realize the in-place unfolding or folding of the rotating body; (3) The buffer mechanism and the sensor two are matched to form a collision detection mechanism, the damping plate is compressed after colliding with the goods, gradually approaches the sensor two, and when the compression distance is less than 4mm, the sensor two triggers an alarm signal, and then the alarm maintenance is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of a stacking machine used on an intelligent stacking machine of the present application;

[0018] Figure 2 is an axial side view of a fork body of the present application;

[0019] Figure 3 is a side view of the fork body of the present application;

[0020] Figure 4 is an axial side view of the internal structure of the fork body of the present application;

[0021] Figure 5 is Figure 4 is a partial enlarged view of "A" in

[0022] Figure 6 is a partial enlarged view of "B" in Figure 4

[0023] Figure 7 is an axial side view of the buffer mechanism of the present application;

[0024] Figure 8 is an axial side view of the combination of the second fork plate and the linkage mechanism of the present application;

[0025] Figure 9 is a partial enlarged view of "C" in Figure 8

[0026] ​​Figure: fork body 1; fork base 2; first fork plate 3; second fork plate 4; fork structure 5; linkage mechanism 6; guide pulley 7; transmission belt 8; drive mechanism 9; drive motor 10; transmission assembly 11; loading platform body 12; conveying mechanism 13; chain drive mechanism 14; slide rail support 1 15; guide 1 16; slide rail support 2 17; guide 2 18; protective shell 19; placement groove 20; gear box 21; rack push plate 22; gear box body 23; first gear 24; second gear 25; servo motor 26; fixed block 27; shaft coupling 28; rotating body 29; detection mechanism 30; mounting bracket 31; sensor 1 32; rotating rod 33; buffer mechanism 34; mounting body 35; sliding rod 36; shock absorbing plate 37; shock absorbing spring 38; sensor 2 39; buffer head 40; open slot 41; adjustment bracket 42; guide pulley support 43; mounting groove 45; arc transition edge 46; guide rail segment 47; guide slot 48; protrusion 49; U-shaped open slot 50; mounting hole 51; threaded hole 52; gantry mechanism 53. DETAILED DESCRIPTION

[0027] It should be understood that the specific embodiments described herein are merely exemplary and do not limit the application.

[0028] Example 1: A telescopic fork mechanism for an intelligent stacking machine (see attached Figure 1 to the attached Figure 9 ), including a fork body 1, the fork body 1 including a fork base 2, a first fork plate 3 disposed on the fork base 2, a second fork plate 4 disposed on the first fork plate 3, and a plurality of fork structures 5 disposed on the second fork plate 4, the fork structures having three groups; a linkage mechanism 6, including two groups of guide pulleys 7 disposed on the first fork plate 3 and a transmission belt 8 disposed on the guide pulleys 7, the first end of the transmission belt 8 being connected to the fork base 2, the second end of the transmission belt 8 being connected to the second fork plate 4, the transmission belt 8 being connected in a U-shaped open structure, and the U-shaped openings of the two groups of transmission belts 8 being oppositely disposed; a drive mechanism 9, including a drive motor 10 disposed on the fork base 2 and a transmission assembly 11 disposed on the output shaft of the drive motor 10, by starting the drive motor 10, the transmission assembly 11 can drive the first fork plate 3 to realize telescopic sliding relative to the fork base 2, at the same time, the second fork plate 4 realizes telescopic sliding relative to the first fork plate 3 under the action of the transmission belt 8.

[0029] The fork body 1 also includes two sets of slide rail brackets 15 fixed on the fork base 2, with the two sets of guide rail brackets arranged in parallel. The first fork plate 3 has two sets of guide slides 16, which are slidably mounted on the slide rail brackets 15. The first fork plate 3 also has a second slide rail bracket 17, with the guide rail brackets arranged in parallel. The second fork plate 4 has a second guide slide 18, which is slidably mounted on the second slide rail bracket 17. The second fork plate 4 has a protective shell 19, with a placement groove 20 on the protective shell 19 to facilitate the rotation and retraction of the intermediate fork structure. The structural design of the fork body 1 in this invention allows the forks to be adjusted to the left or right while simultaneously increasing the fork extension distance and efficiency through the linkage mechanism 6. This effectively improves the limit distance of fork extension adjustment, indirectly increasing the adjustable limit distance between the two sides of the racks and the stacking level of goods on the racks, thereby improving the space utilization rate and storage capacity of intelligent warehousing.

[0030] The transmission assembly 11 includes a gearbox 21 mounted on the fork base 2 and a rack pusher plate 22 mounted on the first fork plate 3. The gearbox 21 includes a gearbox body 23, a first gear 24 mounted inside the gearbox body 23, and several second gears 25 mounted inside the gearbox body 23. The first gear 24 is connected to the output shaft of the drive motor 10, and the first gear 24 meshes with the second gears 25. The second gears 25 mesh with the rack on the rack pusher plate 22. There are two second gears 25, which are rotatably mounted on both sides of the first gear 24 within the gearbox body 23. When the drive motor 10 starts, it drives the first gear 24 to rotate, which in turn drives the second gears 25 to rotate. The rotation of the second gears 25 causes the rack pusher to move to the left or right, thereby causing the first fork plate 3 to extend or retract to the left or right.

[0031] The fork structure 5 includes a servo motor 26 mounted on the second fork plate 4, a fixing block 27 mounted on the second fork plate 4, and a coupling 28 mounted on the fixing block 27. One end of the coupling 28 is connected to the output shaft of the servo motor 26, and the other end is connected to a rotating body 29. When the servo motor 26 starts, it drives the coupling 28 to rotate, which in turn drives the rotating body 29 to rotate. The rotating body 29 is used for gripping goods. When the rotating body 29 is connected to the second fork plate 4 at a 90° angle, the rotating body 29 is extended, and loading and unloading operations can be performed through the fork body 1. When the rotating body 29 is connected to the second fork plate 4 at a 0° angle, the rotating body 29 is retracted, avoiding interference and facilitating the transportation of goods and the loading and unloading operations of the fork body 1.

[0032] The second fork plate 4 is provided with a detection mechanism 30, which comprises a mounting bracket 31 arranged on the second fork plate 4 and a plurality of sensors I 32 arranged on the mounting bracket 31. The rotating rod 33 is arranged on the coupling 28, and the position of the rotating rod 33 can be detected by the sensor I 32 to realize the in-place detection of the rotating body 29. The two sensors I 32 are both blocked by the rotating rod 33 to realize the position detection of the unfolding or folding of the rotating body 29, and the intelligent level is provided.

[0033] The second fork plate 4 is provided with a buffer mechanism 34 at both ends, which comprises a mounting body 35 fixedly arranged on the second fork plate 4 and a plurality of sliding rods 36 slidingly arranged on the mounting body 35. The end of the sliding rod 36 is provided with a damping plate 37, and the damping spring 38 is arranged outside the sliding rod 36 between the mounting body 35 and the damping plate 37. The design of the buffer mechanism can prevent the end of the second fork plate from directly colliding with the goods, which is beneficial to realize the buffer protection of the goods and the second fork.

[0034] The wall body near the damping plate 37 side of the mounting body 35 is provided with a sensor II 39 and a buffer head 40, and the buffer head 40 has a longer extension length than the sensor II 39. The design of the buffer head 40 can realize the expansion and contraction limiting of the damping plate 37, and also can play a role in preventing the sensor II 39 from being collided; the sensor II is a proximity switch, and the sensor II 39 can detect the compression distance of the damping plate 37. When the compression distance is less than 4mm, the sensor II triggers an alarm signal, thereby realizing alarm maintenance, and at the same time, the control system can control the second fork plate 4 to stop expansion and contraction.

[0035] The wall body of the second fork plate 4 is provided with a front and rear through opening slot 41, and the adjusting bracket 42 is fixedly arranged in the opening slot 41. The guide pulley bracket 43 is slidingly arranged between the adjusting bracket 42 and the bottom wall of the opening slot 41, and the guide pulley 7 is connected to the guide pulley bracket. The adjusting bracket 42 is threadedly connected with a tightening bolt, and one end of the tightening bolt is threadedly connected with the guide pulley bracket 43. The design of the structure is convenient for adjusting the tension of the transmission belt 8.

[0036] The upper and lower side wall bodies near the bottom of the opening slot 41 are provided with mounting grooves 45, and the arc transition edge 46 is arranged between the mounting grooves 45 and the opening slot 41. The arc transition edge 46 is provided with guide rail sections 47 on the upper and lower sides of the opening end of the opening slot 41. The guide sliding groove 48 with one side end wall through is arranged in the upper and lower side wall bodies of the guide pulley bracket 43, and the guide sliding groove 48 on the guide pulley bracket 43 is adaptively connected with the guide rail sections 47. The structure design is convenient for dismounting and mounting the guide pulley bracket 43, and the front and rear limiting during position adjustment.

[0037] The guide rail section 47 is provided with a protrusion 49, the adjusting support 42 is provided with a U-shaped open slot 50, and the U-shaped open slot 50 is connected with the protrusion 49 through bolt fixing.

[0038] The adjusting support 42 is provided with a mounting hole 51 communicated with the U-shaped open slot 50, a threaded hole 52 is arranged on a side wall body away from the guide pulley 7 on the guide pulley support 43, and an adjusting bolt is connected through the mounting hole and the threaded hole.

[0039] Work flow:

[0040] The utility model provides a telescopic fork mechanism for intelligent stacking machine, the telescopic fork mechanism in the scheme is arranged on the loading platform in the intelligent stacking machine, the loading platform includes loading platform body 12 and the fork body 1 of setting on loading platform body 12, the middle position of loading platform body 12 is provided with goods conveying mechanism 13, the fork body 1 is set on the conveying mechanism 13 of loading platform body 12 two sides, the chain drive mechanism 14 on the loading platform, the chain drive structure can make the fork body 1 realize the loading action of moving towards or the unloading action of moving away, the intelligent stacking machine still includes portal frame mechanism 53, the mechanism can realize the overall lifting adjustment of loading platform, this part structure is prior art, the scheme will not repeat;

[0041] When the rotating body 29 in the fork structure 5 is unfolded, the servo motor 26 is started, the output shaft of the servo motor 26 rotates clockwise, thereby driving the coupling 28 to rotate clockwise, thereby driving the rotating body 29 and the rotating rod 33 to rotate clockwise, at this time, the rotating body 29 is connected with the second fork plate 4 at 90°, the rotating body 29 realizes unfolding, and the unfolding structure can make the fork body 1 realize loading and unloading action through the control system on the loading platform; when the rotating body 29 in the fork structure 5 is folded, the servo motor 26 is started, the output shaft of the servo motor 26 rotates counterclockwise, thereby driving the coupling 28 to rotate counterclockwise, thereby driving the rotating body 29 and the rotating rod 33 to rotate counterclockwise, at this time, the rotating body 29 is connected with the second fork plate 4 at 0°, thereby making the rotating body 29 realize folding, avoiding interference, and facilitating the transportation of goods and the loading and unloading operation of the fork body 1.

[0042] When the fork body 1 needs to be telescoped to the left or to the right, the driving motor 10 is started first, the driving motor 10 is started to drive the first gear 24 to rotate, the first gear 24 drives the second gear 25 to rotate, the second gear 25 drives the rack push rod to move to the left (or to the right), thereby driving the first fork plate 3 to realize telescopic movement to the left or to the right; at the same time, the second fork plate 4 realizes telescopic adjustment relative to the first fork plate 3 under the tension of the transmission belt 8 in the linkage structure.

[0043] Beneficial effects: (1) The linkage mechanism is arranged in the application, the first fork plate can be adjusted to the left side or the right side, and the second fork plate can be adjusted to stretch or retract relative to the first fork plate under the action of the transmission belt, so that the rotating body on the fork structure can realize the foldable distance and the foldable efficiency, and the limit distance of the fork stretching adjustment is effectively improved, the fork can realize the transportation and carrying of packaging boxes of multiple specifications, and the adjustable limit distance of the two side shelves and the stacking level of the goods on the shelves are indirectly improved, so that the space utilization rate of the intelligent storage and the upper limit of the intelligent storage are improved; (2) The application is provided with a fork structure, the rotating body is adjusted by the servo motor, and then the detection mechanism can realize the in-place unfolding or folding of the rotating body; (3) The buffer mechanism and the sensor two cooperate to form a collision detection mechanism, the shock absorbing plate is compressed after colliding with the goods, gradually approaches the sensor two, when the compression distance is less than 4mm, the sensor two triggers an alarm signal, and then the alarm maintenance is realized.

[0044] The above-mentioned embodiments are only the preferred schemes of the application, and do not limit the application in any form, and other variants and modifications can be made without exceeding the technical scheme recorded in the claims.

Claims

1. A telescopic fork mechanism used on an intelligent stacker crane, characterized in that, The system includes a fork body, comprising a fork base, a first fork plate placed on the fork base, a second fork plate placed on the first fork plate, and several fork structures placed on the second fork plate; a linkage mechanism, comprising two sets of guide pulleys placed on the first fork plate and a transmission belt placed on the guide pulleys, wherein the first end of the transmission belt is connected to the fork base and the second end of the transmission belt is connected to the second fork plate, and the transmission belt forms a U-shaped opening structure after connection, with the opening ends of the U-shaped opening structures of the two sets of transmission belts arranged opposite to each other; and a drive mechanism, comprising a drive motor placed on the fork base and a transmission belt placed on the output shaft of the drive motor. The drive assembly, by starting the drive motor, enables the transmission assembly to drive the first fork plate to slide telescopically relative to the fork base. At the same time, the second fork plate slides telescopically relative to the first fork plate under the action of the transmission belt. The transmission assembly includes a gearbox placed on the fork base and a rack pusher plate placed on the first fork plate. The gearbox includes a gearbox body, a first gear placed inside the gearbox body, and several second gears placed inside the gearbox body. The first gear is connected to the output shaft on the drive motor. The first gear meshes with the second gears, and the second gear meshes with the rack on the rack pusher plate.

2. The telescopic fork mechanism for use on an intelligent stacker crane according to claim 1, characterized in that, The fork structure includes a servo motor mounted on the second fork plate, a fixed block mounted on the second fork plate, and a coupling mounted on the fixed block. One end of the coupling is connected to the output shaft of the servo motor, and the other end is connected to a rotating body.

3. The telescopic fork mechanism for use on an intelligent stacker crane according to claim 2, characterized in that, The second fork plate is equipped with a detection mechanism, which includes a mounting bracket on the second fork plate, several sensors mounted on the mounting bracket, and a rotating rod on the coupling. The position detection of the rotating body can be achieved by detecting the position of a pair of rotating rods through the sensors.

4. A telescopic fork mechanism for use on an intelligent stacker crane according to claim 1, 2, or 3, characterized in that, Both ends of the second fork plate are equipped with a buffer mechanism. The buffer mechanism includes a mounting body fixedly installed on the second fork plate and several sliding rods slidably installed on the mounting body. The ends of the sliding rods are equipped with shock-absorbing plates, and shock-absorbing springs are installed between the mounting body and the shock-absorbing plates and sleeved on the outside of the sliding rods.

5. The telescopic fork mechanism for use on an intelligent stacker crane according to claim 4, characterized in that, Sensor 2 and buffer head are installed in the wall of the mounting body near the damping plate. The buffer head extends beyond the sensor 2.

6. A telescopic fork mechanism for use on an intelligent stacker crane according to claim 1, 2, 3, or 5, characterized in that, The second fork plate has through openings on both ends of the inner wall. An adjusting bracket is fixed in the opening slot. A guide pulley bracket is slidably provided between the adjusting bracket and the bottom wall of the opening slot. The guide pulley is connected to the guide pulley bracket. An adjusting bolt is threadedly connected to the adjusting bracket. One end of the adjusting bolt is threadedly connected to the guide pulley bracket.

7. The telescopic fork mechanism for use on an intelligent stacker crane according to claim 6, characterized in that, The upper and lower side walls near the bottom of the opening groove are provided with mounting grooves. An arc-shaped transition edge is provided between the mounting groove and the opening groove. Guide rail sections are provided on both the upper and lower sides of the arc-shaped transition edge to the opening end of the opening groove. A guide groove with one end wall through is provided in the upper and lower side walls of the guide pulley bracket. The guide groove on the guide pulley bracket is adapted to the guide rail section.

8. The telescopic fork mechanism for use on an intelligent stacker crane according to claim 7, characterized in that, The guide rail section is provided with a protrusion, and the adjusting bracket is provided with a U-shaped opening groove. The U-shaped opening groove and the protrusion are fixedly connected by bolts.

9. A telescopic fork mechanism for use on an intelligent stacker crane according to claim 8, characterized in that, The adjusting bracket has a mounting hole that communicates with the U-shaped opening groove. The side wall of the guide pulley bracket away from the guide pulley has a threaded hole. The adjusting bolt passes through the mounting hole and connects with the threaded hole.

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