Jacking conveyor

Abstract

The utility model discloses an embodiment relates to a jacking conveyor, is provided with the frame on the jacking conveyor, is fixed guiding device on the frame, is provided with the change of direction device on the guiding device, is provided with chain structure above the frame, and chain structure is guided through the guiding device, and through the change of direction device change of direction, make chain structure multistage speed change and synchronous positioning, the bottom fixed pneumatic device of frame, and pneumatic device drives chain structure to go up or drop through telescopic action, changes the conveying height of material, has the advantages of efficient jacking, dynamic adaptation, low energy consumption, compact structure, solves in the prior art, and the motor drive needs to be equipped with complex transmission mechanism, leads to the equipment volume is huge, and the response speed is slow, and difficult to realize high frequency start -stop, and single -acting cylinder needs to depend on spring reset, and the stroke is limited, and because of rigid structure, difficult to adapt dynamic deviation and vibration in the chain conveying process, and easily causes the technical problem of jam or sealing failure.

Description

Technical Field

[0001] The embodiments of this utility model relate to a material conveying device, and more particularly to a lifting conveyor. Background Technology

[0002] In existing technologies, the lifting function of lifting conveyors is mainly achieved by motor-driven lead screws, hydraulic cylinders, or pneumatic cylinders. However, motor drives require complex transmission mechanisms, resulting in bulky equipment, slow response speed, and difficulty in achieving high-frequency start-stop. Hydraulic drives rely on hydraulic pump stations and oil circuit systems, which pose risks of oil leakage, have high maintenance costs, and the hydraulic oil is easily affected by temperature, leading to a decrease in motion accuracy. Single-acting pneumatic cylinders rely on spring reset, which limits their stroke. Double-acting pneumatic cylinders, due to their rigid structure, are difficult to adapt to the dynamic offset and vibration during chain conveying, which can easily cause jamming or seal failure. Utility Model Content

[0003] The purpose of this utility model is to provide a lifting conveyor that can change the material conveying height by extending or retracting the chain structure to rise or fall.

[0004] To achieve the above objectives, the present invention provides a lifting conveyor, comprising:

[0005] A frame is mounted on the lifting conveyor.

[0006] A guiding device, which is fixed on the frame;

[0007] A reversing device, wherein the reversing device is mounted on the guiding device;

[0008] A chain structure is provided above the frame; the chain structure is guided by the guiding device; and redirected by the redirecting device, enabling the chain structure to undergo multi-stage speed changes and synchronous positioning.

[0009] A pneumatic device is fixed at the bottom of the frame; the pneumatic device drives the chain structure to rise or fall by extending or retracting, thereby changing the material conveying height.

[0010] Furthermore, in the lifting conveyor of this utility model, the frame includes:

[0011] Side plate, the side plate is fixed on the frame;

[0012] Main connecting frame, the main connecting frame is fixed on the frame;

[0013] A support base is fixed on the frame below the main connecting frame; the support base is fixedly connected to the guide mechanism of the guide device below the pneumatic device.

[0014] Furthermore, in the lifting conveyor of this utility model, the guiding device includes:

[0015] A guiding mechanism is fixed on the side plate and the main connecting frame of the frame;

[0016] The first chain track is fixed above the side plate and the main connecting frame of the frame;

[0017] The second chain track is fixed above the side plate of the frame and on one side of the first chain track;

[0018] The transmission sprocket system is installed on the main connecting frame of the machine frame.

[0019] An upper connecting rod is fixedly connected between the first chain track and the second chain track.

[0020] Furthermore, in the lifting conveyor of this utility model, the guiding mechanism includes:

[0021] The first guide rod, a plurality of the first guide rods are fixedly connected to one side of the side plate of the frame and the main connecting frame;

[0022] The second guide rod is fixedly connected to the side plate of the frame and the other side of the main connecting frame.

[0023] The first linear bearing is movably connected to a plurality of the first guide rods respectively;

[0024] The second linear bearing is movably connected to several of the second guide rods;

[0025] A lifting platform is fixedly connected to the main connecting frame of the machine frame, on the first linear bearing and the second linear bearing.

[0026] Furthermore, in the lifting conveyor of this utility model, the redirecting device includes:

[0027] A redirecting sleeve bracket is fixedly connected to both sides of the upper connecting rod of the guide device;

[0028] A number of redirecting sprocket shafts are fixedly connected to the main connecting frame of the machine frame;

[0029] The inner ring of the third bearing is fixedly connected to each of the several redirecting sprocket shafts;

[0030] A sprocket redirection sleeve is fixedly connected to the outer ring of the third bearing; the third bearing is between the redirection sprocket shaft and the sprocket redirection sleeve; the inner ring of the third bearing is stationary, while the outer ring of the third bearing rotates.

[0031] Positioning rings, wherein a plurality of positioning rings are fixed on a plurality of the redirecting sprocket shafts;

[0032] The first end redirecting sprocket is fixedly connected to the inner hole of the first end redirecting sprocket on the outer circle of the sprocket redirecting sleeve, and the chain on one side of the first chain track of the guide device is connected to the outer side of the first end redirecting sprocket.

[0033] The second end redirecting sprocket is fixedly connected to the inner hole of the second end redirecting sprocket on the outer circle of the sprocket redirecting sleeve, and the chain on the other side of the first chain track of the guide device is connected to the outer side of the second end redirecting sprocket.

[0034] The third end redirecting sprocket is fixedly connected to the inner hole of the third end redirecting sprocket on the outer circle of the sprocket redirecting sleeve, and the outer side of the third end redirecting sprocket is connected to the chain on one side of the second chain track of the guide device.

[0035] The fourth end redirecting sprocket is fixedly connected to the inner hole of the fourth end redirecting sprocket on the outer circle of the sprocket redirecting sleeve, and the chain on the other side of the second chain track of the guide device is connected to the outer side of the fourth end redirecting sprocket.

[0036] Furthermore, in the lifting conveyor of this utility model, the chain structure includes:

[0037] A first double-row conveyor roller chain is provided above the side plate and the main connecting frame of the machine frame;

[0038] A second double-row conveyor roller chain is provided above the side plate and main connecting frame of the frame, and on one side of the first double-row conveyor roller chain.

[0039] The output shaft is transitionally connected to the main connecting frame of the frame.

[0040] A first bearing is fixedly connected to the output shaft;

[0041] The inner side of the first motor end sprocket is fixedly connected to the outer ring of the first bearing, and the outer side of the first motor end sprocket is connected to the first double-row conveying roller chain and the single-row transmission roller chain.

[0042] The shaft is transitionally connected to the main connecting frame of the frame on one side of the output shaft;

[0043] A second bearing is fixedly connected to the shaft;

[0044] The inner side of the second motor end sprocket is fixedly connected to the outer ring of the second bearing, and the outer side of the second motor end sprocket is connected to the first double-row conveying roller chain and the single-row transmission roller chain.

[0045] A single-row drive roller chain is movably connected to the sprockets at the first motor end and the second motor end;

[0046] The first tensioning wheel is meshed between the first motor end sprocket and the second motor end sprocket.

[0047] The second tensioning pulley is engaged with the second tensioning pulley on the other side of the sprocket at the end of the second motor.

[0048] The first sprocket cover is fixedly connected to the main connecting frame of the frame above the first motor end sprocket;

[0049] The second sprocket cover is fixedly connected to the main connecting frame of the machine frame above the second motor end sprocket, on one side of the first sprocket cover;

[0050] The transmission sprocket system is fixedly connected to the main connecting frame of the machine frame.

[0051] Furthermore, in the lifting conveyor of this utility model, the transmission sprocket system includes:

[0052] The lower connecting rod is movably connected to the main connecting frame via a bearing seat.

[0053] The first double sprocket is coaxially connected to one side of the second motor end sprocket in the chain structure;

[0054] The second double sprocket is coaxially connected to the second double sprocket on the other side of the second motor end sprocket; the lower connecting rod passes through the first double sprocket, the second double sprocket and the second motor end sprocket.

[0055] Furthermore, in the lifting conveyor of this utility model, the pneumatic device includes:

[0056] An electrical component mounting plate is fixed on the support base of the frame;

[0057] A double-layer airbag cylinder is fixed on the electrical component mounting plate.

[0058] A one-way throttle valve is connected to one side of the airbag-type double-layer cylinder via an air pipe;

[0059] A solenoid valve is connected to one side of the one-way throttle valve via an air pipe;

[0060] A silencer is installed on one side of the solenoid valve;

[0061] A pressure regulating filter is connected to one side of the solenoid valve via an air pipe;

[0062] A manual sliding valve is connected to one side of the pressure regulating filter via an air pipe;

[0063] The inlet is connected to one side of the hand slide valve via an air pipe.

[0064] Furthermore, in the lifting conveyor of this utility model, an upper cover plate is placed on top of the first double-row conveyor roller chain and the second double-row conveyor roller chain.

[0065] Furthermore, in the lifting conveyor of this utility model, a motor and a reducer are installed on the main connecting frame of the frame. The motor and reducer are fixedly connected to the first motor end sprocket of the chain structure through the output shaft of the chain structure. The motor and reducer generate power and transmit it to the first motor end sprocket of the chain structure. The first motor end sprocket of the chain structure drives the second motor end sprocket of the chain structure to rotate through the single-row transmission roller chain of the chain structure. The single-row transmission roller chain of the chain structure rolls on the first motor end sprocket and the second motor end sprocket of the chain structure, passing through one end of the lower connecting rod of the transmission sprocket system of the guide device. The second motor end sprocket and the first double sprocket of the chain structure rotate coaxially, thereby driving the first double-row conveyor roller chain of the chain structure to run. The first double-row conveyor roller chain of the chain structure runs from the first motor end sprocket of the chain structure along the second end redirecting sprocket, the first end redirecting sprocket, the second tensioning wheel, the second motor end sprocket, and the first tensioning wheel, and finally returns to the first motor end sprocket of the chain structure. Through the connection of the other end of the lower connecting rod of the transmission sprocket system and the other end of the upper connecting rod of the guide device, the second double-row conveyor roller chain of the chain structure moves in the same direction and at the same speed as the first double-row conveyor roller chain.

[0066] Compared with the prior art, the implementation method of this utility model adopts a frame set on a lifting conveyor; a guide device fixed on the frame; a redirection device set on the guide device; a chain structure set above the frame; the chain structure is guided by the guide device; the redirection device redirects the chain structure to achieve multi-stage speed change and synchronous positioning; a pneumatic device is fixed at the bottom of the frame; the pneumatic device drives the chain structure to rise or fall through extension and retraction, changing the material conveying height. It has the advantages of high-efficiency lifting, dynamic adaptation, low energy consumption, and compact structure. It solves the technical problems in the prior art, where motor drive requires a complex transmission mechanism, resulting in large equipment size, slow response speed, and difficulty in achieving high-frequency start and stop; hydraulic drive relies on hydraulic pump station and oil circuit system, which has the risk of oil leakage, high maintenance cost, and the hydraulic oil is easily affected by temperature, leading to a decrease in action accuracy; single-acting cylinders rely on spring reset, which limits the stroke; and double-acting cylinders, due to their rigid structure, are difficult to adapt to the dynamic offset and vibration during chain conveying, which easily leads to jamming or sealing failure. Attached Figure Description

[0067] Figure 1 This is the front view of the present invention;

[0068] Figure 2 This is a top view of the present invention;

[0069] Figure 3 This is the left view of the present invention;

[0070] Figure 4 This is a cross-sectional view of the present invention;

[0071] Figure 5 This is a schematic diagram of the pneumatic device of this utility model. Detailed Implementation

[0072] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0073] The embodiments of this utility model relate to a lifting conveyor, such as... Figure 1 and Figure 2 As shown, it includes:

[0074] In this embodiment, a frame 50 is provided on the lifting conveyor. The frame 50 is the basic frame of the lifting conveyor, which can support other components, provide precise installation and positioning, protect internal components (prevent dust and debris, and avoid damage to chains and sprockets), and prevent personnel from accidentally touching moving parts, thereby improving the safety of the equipment.

[0075] A guide device 40 is fixed on the frame 50. The guide device 40 can guide the first double-row conveyor roller chain 20 and the second double-row conveyor roller chain 49 to run along a predetermined trajectory to avoid deviation. The guide device 40 can also make the movement of the first double-row conveyor roller chain 20 and the second double-row conveyor roller chain 49 smoother, reduce friction, reduce noise, and improve the stability of operation.

[0076] A redirection device 7 is provided on the guide device 40. The redirection device 7 can change the running direction of the first double-row conveying roller chain 20, the second double-row conveying roller chain 49 and the single-row drive roller chain 19, so that the material is conveyed along the predetermined route. The redirection device 7 can also improve the transmission efficiency, prevent the chain from slipping during operation, and ensure stable and reliable material conveying.

[0077] A chain structure 5 is installed above the frame 50; the chain structure 5 is guided by the guide device 40; and redirected by the redirection device 7, so that the chain structure 5 can change speed in multiple stages and be positioned synchronously, ensuring that the chain stops and runs accurately at each workstation.

[0078] A pneumatic device 30 is fixed at the bottom of the frame 50; the pneumatic device 30 drives the chain structure 5 to rise or fall by telescopic movement, thereby changing the material conveying height.

[0079] In this embodiment, a pneumatic device 30 is fixed at the bottom of the frame 50. The pneumatic device 30 drives the chain structure 5 to rise or fall through its telescopic movement, changing the material conveying height. It has the advantages of high-efficiency lifting, dynamic adaptation, low energy consumption, and compact structure. It solves the problems in the prior art, where motor drive requires a complex transmission mechanism, resulting in large equipment size, slow response speed, and difficulty in achieving high-frequency start and stop; hydraulic drive relies on hydraulic pump station and oil circuit system, which has the risk of oil leakage, high maintenance cost, and the hydraulic oil is easily affected by temperature, leading to a decrease in action accuracy; single-acting cylinders rely on spring reset, which limits the stroke; and double-acting cylinders, due to their rigid structure, are difficult to adapt to the dynamic offset and vibration during chain conveying, which can easily cause jamming or sealing failure.

[0080] To achieve the above-mentioned technical effects, such as Figure 1 As shown, rack 50 includes:

[0081] Side plate 1 is fixed on frame 50. Side plate 1 is part of the frame of the lifting conveyor and can support other components and provide precise installation positioning.

[0082] The main connecting frame 2 is fixed on the frame 50. The main connecting frame 2 is part of the frame of the lifting conveyor and is used to connect other components.

[0083] A lower support 3 is fixed on the frame 50 below the main connecting frame 2; the lower support 3 is fixedly connected to the guide mechanism 4 of the guide device 40 below the pneumatic device 30, and the lower support 3 can fixally connect to and position the guide mechanism 4 and the pneumatic device 30.

[0084] To achieve the above-mentioned technical effects, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the guide device 40 includes:

[0085] A guide mechanism 4 is fixed on the side plate 1 and the main connecting frame of the frame 50. The guide mechanism 4 provides precise linear motion guidance for the lifting platform 45, ensuring that the lifting platform 45 remains vertically stable during the lifting process and avoiding deviation or shaking.

[0086] The first chain track 46 is fixed above the side plate 1 and the main connecting frame 2 of the frame 50;

[0087] A second chain track 47 is fixed above the side plate 1 of the frame 50 and on one side of the first chain track 46. The first chain track 46 and the second chain track 47 can provide a clear running path for the first double-row conveyor roller chain 20 and the second double-row conveyor roller chain 49, guide the chain direction, and also support and constrain the chain, so that the chain is subjected to more uniform force during operation, reduces the wear rate of the chain, and extends the service life of the chain.

[0088] The transmission sprocket system 6 is fixedly connected to the main connecting frame 2 of the frame 50. The power generated by the motor and reducer 17 is transmitted to the first motor end sprocket 10. The first motor end sprocket 10 drives the second motor end sprocket 22 to rotate, thereby driving the first double sprocket 53 and the second double sprocket 54 to rotate synchronously, transmitting power in an orderly manner, so that the entire transmission system can operate stably and continuously, providing basic power support for the lifting conveyor.

[0089] Several upper connecting rods 13 are fixedly connected between the first chain track 46 and the second chain track 47. The upper connecting rods 13 connect the first chain track 46 and the second chain track 47 into a whole, which can enhance the stability of the lifting conveyor structure and prevent it from shifting or shaking during operation.

[0090] To achieve the above-mentioned technical effects, such as Figure 1 and Figure 2 As shown, the guide mechanism 4 includes:

[0091] Several first guide rods 41 are fixedly connected to one side of the side plate 1 and the main connecting frame 2 of the frame 50;

[0092] Several second guide rods 42 are fixedly connected to the other side of the side plate 1 and the main connecting frame 2 of the frame 50. Several first guide rods 41 and several second guide rods 42 are fixed parallel and symmetrically on the side plate 1 and the main connecting frame 2 of the frame 50, so that the lifting platform 45 moves vertically along the guide rods, preventing deviation, rotation or tilting.

[0093] A first linear bearing 43 is movably connected to a number of first guide rods 41;

[0094] Second linear bearings 44 are movably connected to several second guide rods 42. The precise cooperation between the first linear bearing 43 and the second linear bearing 44 and the first guide rod 41 and the second guide rod 42 makes the straightness error of the platform movement extremely small.

[0095] A lifting platform 45 is fixedly connected above the main connecting frame 2 of the frame 50, on the first linear bearing 43 and the second linear bearing 44. The lifting platform 45 is driven to move by a number of first guide rods 41 and a number of second guide rods 42 in cooperation with their corresponding first linear bearings 43 and second linear bearings 44, so as to achieve high-precision and stable linear lifting or translation function.

[0096] To achieve the above-mentioned technical effects, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the reversing device 7 includes:

[0097] A redirecting sleeve bracket 12 is fixedly connected to both sides of the upper connecting rod 13 of the guide device 40. The redirecting sleeve bracket 12 can support the upper connecting rod 13 and the lower connecting rod 14.

[0098] Several redirecting sprocket shafts 8 are fixedly connected to the main connecting frame 2 of the frame 50. The redirecting sprocket shafts 8 can change the movement direction of the first double-row conveying roller chain 20 and the second double-row conveying roller chain 49. The fixing structure of the redirecting sprocket shafts 8 can reduce the vibration and radial runout of the first end redirecting sprocket 71, the second end redirecting sprocket 72, the third end redirecting sprocket 73 and the fourth end redirecting sprocket 74, ensure accurate meshing between the chain and the sprocket, avoid chain derailment or abnormal wear, and improve the overall stability of operation.

[0099] The inner rings of the third bearings 48 are fixedly connected to several redirecting sprocket shafts 8, which can statically support the redirecting sprocket shafts 8. The third bearings 48 can reduce frictional resistance, improve rotational accuracy, and reduce vibration and noise.

[0100] A sprocket redirecting sleeve 11 is fixedly connected to the outer ring of the third bearing 48. The sprocket redirecting sleeve 11 rotates synchronously with the outer ring of the third bearing 48, changing the transmission direction of the chain. The third bearing 48 is located between the redirecting sprocket shaft 8 and the sprocket redirecting sleeve 11. The inner ring of the third bearing 48 remains stationary while the outer ring of the third bearing 48 rotates. When the inner ring is stationary, the redirecting sprocket shaft 8 does not need to bear rotational friction. The rotational torque of the outer ring of the third bearing 48 is transmitted through the balls of the third bearing 48, which significantly reduces the wear between the redirecting sprocket shaft 8 and the inner ring of the third bearing 48 and extends the service life.

[0101] Several positioning rings 9 are fixed on several redirecting sprocket shafts 8. The positioning rings 9 can accurately position the first end redirecting sprocket 71, the second end redirecting sprocket 72, the third end redirecting sprocket 73, the fourth end redirecting sprocket 74 and the redirecting sleeve bracket 12, so as to avoid the chain running poorly and the noise increasing due to the displacement of the component positions.

[0102] The inner hole of the first end redirecting sprocket 71 is fixedly connected to the outer circle of the sprocket redirecting sleeve 11, and the outer side of the first end redirecting sprocket 71 is connected to the first chain track 46 of the guide device 40 by a chain.

[0103] The inner hole of the second end redirecting sprocket 72 is fixedly connected to the outer circle of the sprocket redirecting sleeve 11. The chain on the other side of the first chain track 46 of the guide device 40 is connected to the outer side of the second end redirecting sprocket 72. The first end redirecting sprocket 71 and the second end redirecting sprocket 72 are respectively connected to the chains on both sides of the first chain track 46 to control the direction of the chain entering and exiting the first chain track 46, ensuring that the chain smoothly passes around the redirection point.

[0104] The inner hole of the third end redirecting sprocket 73 is fixedly connected to the outer circle of the sprocket redirecting sleeve 11, and the outer side of the third end redirecting sprocket 73 is connected to the chain on one side of the second chain track 47 of the guide device 40.

[0105] The inner hole of the fourth end redirecting sprocket 74 is fixedly connected to the outer circle of the sprocket redirecting sleeve 11. The chain on the other side of the second chain track 47 of the guide device 40 is connected to the outer side of the fourth end redirecting sprocket 74. The third end redirecting sprocket 73 and the fourth end redirecting sprocket 74 are respectively connected to the chains on both sides of the second chain track 47 to control the direction of the chain entering and exiting the second chain track 47, ensuring that the chain smoothly passes around the redirection point and forms an independent closed-loop transmission system.

[0106] To achieve the above-mentioned technical effects, such as Figure 1 and Figure 2 As shown, chain structure 5 includes:

[0107] A first double-row conveyor roller chain 20 is provided above the side plate 1 and the main connecting frame 2 of the frame 50;

[0108] A second double-row conveyor roller chain 49 is installed above the side plate 1 and the main connecting frame 2 of the frame 50, on one side of the first double-row conveyor roller chain 20. The first double-row conveyor roller chain 20 and the second double-row conveyor roller chain 49 can withstand greater loads, transmit greater power, and improve conveying capacity. The two chains of the first double-row conveyor roller chain 20 and the second double-row conveyor roller chain 49 work together to better distribute the force, reduce wear and failure risks, enhance stability and reliability, and improve production efficiency. The first double-row conveyor roller chain 20 and the second double-row conveyor roller chain 49 can also reduce the swing and deviation of the chain during transmission, and improve the precision and accuracy of transmission.

[0109] The output shaft 26 is transitionally connected to the main connecting frame 2 of the frame 50. The main connecting frame 2 provides a stable support base for the output shaft 26. The main connecting frame 2 determines the accurate position and installation reference of the output shaft 26, ensuring the coaxiality and stability of the output shaft 26 during operation and reducing vibration and wear caused by installation deviation.

[0110] A first bearing 25 is fixedly connected to the output shaft 26, and the inner ring of the first bearing 25 remains stationary with respect to the output shaft 26.

[0111] The inner side of the first motor end sprocket 10 is fixedly connected to the outer ring of the first bearing 25, so that the outer ring of the first bearing 25 and the first motor end sprocket 10 rotate at the same speed and in the same direction. The outer side of the first motor end sprocket 10 is connected to the first double-row conveying roller chain 20 and the single-row transmission roller chain 19.

[0112] On one side of the output shaft 26, on the main connecting frame 2 of the frame 50, a transition connecting shaft 28 is provided.

[0113] A second bearing 27 is fixedly connected to the shaft 28, and the inner ring of the second bearing 27 remains stationary with respect to the shaft 28.

[0114] The inner side of the second motor end sprocket 22 is fixedly connected to the outer ring of the second bearing 27, so that the outer ring of the second bearing 27 and the second motor end sprocket 22 rotate at the same speed and in the same direction. The outer side of the second motor end sprocket 22 is connected to the first double-row conveying roller chain 20 and the single-row transmission roller chain 19.

[0115] A single-row drive roller chain 19 is movably connected to the first motor end sprocket 10 and the second motor end sprocket 22. The single-row drive roller chain 19 can rotate and move flexibly on the first motor end sprocket 10 and the second motor end sprocket 22 to form a transmission circuit, so that power is transmitted from the first motor end sprocket 10 to the second motor end sprocket 22. This transmission method has a simple structure, high transmission efficiency, and can work in high temperature and harsh environment.

[0116] The first tensioner 21 is meshed between the first motor end sprocket 10 and the second motor end sprocket 22;

[0117] On the other side of the second motor end sprocket 22, a second tensioning wheel 29 is engaged. The first tensioning wheel 21 and the second tensioning wheel 29 can prevent the single-row transmission roller chain 19 from becoming loose or skipping teeth during transmission, ensuring that the chain and sprocket always maintain a good meshing state, improving the stability and reliability of the transmission. The tension of the chain can also be changed by adjusting the position of the first tensioning wheel 21 and the second tensioning wheel 29.

[0118] A first sprocket cover 16 is fixedly connected above the first motor end sprocket 10 and on the main connecting frame 2 of the frame 50;

[0119] A second sprocket cover 23 is fixedly connected above the second motor end sprocket 22, on one side of the first sprocket cover 16, and on the main connecting frame 2 of the frame 50. The first sprocket cover 16 and the second sprocket cover 23 can prevent operators from accidentally contacting the rotating sprocket and chain, avoid safety accidents, and ensure personnel safety; they can also prevent dust and debris from entering the sprocket and chain, reduce wear and malfunctions caused by impurities, and extend the service life of the components.

[0120] A transmission sprocket system 6 is installed on the main connecting frame 2 of the frame 50. The power generated by the motor and reducer 17 is transmitted to the first motor end sprocket 10. The first motor end sprocket 10 drives the second motor end sprocket 22 to rotate, thereby driving the first double sprocket 53 and the second double sprocket 54 to rotate synchronously, transmitting power in an orderly manner, so that the entire transmission system can operate stably and continuously.

[0121] To achieve the above-mentioned technical effects, such as Figure 3 As shown, the transmission sprocket system 6 includes:

[0122] The lower connecting rod 14 is movably connected to the main connecting frame 2 via a bearing seat. The power generated by the motor and reducer 17 is transmitted to the first motor end sprocket 10. The first motor end sprocket 10 drives the second motor end sprocket 22 to rotate. The lower connecting rod 17 transmits the power obtained by the second motor end sprocket 22 to the first double sprocket 53 and the second double sprocket 54, enabling them to rotate synchronously and ensuring the stability and reliability of the entire transmission system. The lower connecting rod 17 also provides accurate positioning and support for the first double sprocket 53, the second double sprocket 54, and the second motor end sprocket 22. The lower connecting rod 17 passes through the center hole of the sprockets, fixing them in specific positions to ensure that the relative positional relationship between the sprockets remains unchanged, thereby maintaining the normal meshing and transmission efficiency of the transmission system.

[0123] A first double sprocket 53 is coaxially connected to one side of the second motor end sprocket 22. The first double sprocket 53 can improve transmission efficiency and load-bearing capacity, making power transmission more stable and reliable, and ensuring that the lifting conveyor can operate normally.

[0124] A second double sprocket 54 is coaxially connected to the other side of the second motor end sprocket 22; the lower connecting rod 14 passes through the first double sprocket 53, the second double sprocket 54 and the second motor end sprocket 22. The second double sprocket 54 can improve transmission efficiency and load-bearing capacity, making power transmission more stable and reliable, and ensuring that the lifting conveyor can operate normally.

[0125] To achieve the above-mentioned technical effects, such as Figure 3 and Figure 5 As shown, the pneumatic device 30 includes:

[0126] An electrical component mounting plate 39 is fixed on the support base 3 of the frame 50. The electrical component mounting plate 39 is a mounting platform for fixing pneumatic control components. Components such as solenoid valve 33 and pressure regulating filter 32 are mounted on the electrical component mounting plate 39 to facilitate wiring, maintenance and heat dissipation.

[0127] A double-layer airbag cylinder 34 is fixed on the electrical component mounting plate. The inner cylinder of the double-layer airbag cylinder 34 drives the lifting motion, while the outer airbag absorbs the impact force or finely adjusts the position.

[0128] A one-way throttle valve 36 is connected to one side of the airbag-type double-layer cylinder 34 via an air pipe 38. The one-way throttle valve 36 can control the cylinder movement speed.

[0129] A solenoid valve 33 is connected to one side of the one-way throttle valve 36 via an air pipe 38. The solenoid valve 33 can receive electrical signals from the control button and automatically switch the air intake direction of the airbag-type double-layer cylinder 34.

[0130] A muffler 35 is installed on one side of the solenoid valve 33. The muffler 35 can reduce the exhaust noise of the solenoid valve.

[0131] A pressure regulating filter 32 is connected to one side of the solenoid valve 33 via an air pipe 38. The pressure regulating filter 32 can regulate the air pressure and filter impurities.

[0132] A manual sliding valve 31 is connected to one side of the pressure regulating filter 32 via an air pipe 38. The manual sliding valve 31 is a switch valve used to manually control the on / off of the air source.

[0133] On one side of the manual sliding valve 31, an air pipe 38 is connected to the inlet 37, which is connected to a compressed air pipeline to provide the system with a raw air source.

[0134] To achieve the above-mentioned technical effects, such as Figure 3As shown, an upper cover plate 15 is placed over the first double-row conveyor roller chain 20 and the second double-row conveyor roller chain 49. The upper cover plate 15 can prevent personnel from contacting the chain, protecting the personal safety of the operators; the upper cover plate 15 can prevent foreign objects and contaminants from entering, avoiding equipment failure caused by foreign objects being caught in, reducing the corrosion of the chain by contaminants, and extending the service life of the chain and sprocket; the upper cover plate 15 can also reduce noise.

[0135] To achieve the above-mentioned technical effects, such as Figure 1 , Figure 2 and Figure 3 As shown, a motor and reducer 17 are mounted on the main connecting frame 2 of the frame 50. The motor and reducer 17 are fixedly connected to the first motor end sprocket 10 of the chain structure 5 via the output shaft 26 of the chain structure 5. The motor and reducer 17 generate power, which is transmitted to the first motor end sprocket 10 of the chain structure 5. The first motor end sprocket 10 of the chain structure 5 drives the second motor end sprocket 22 of the chain structure 5 to rotate via the single-row transmission roller chain 19 of the chain structure 5. The single-row transmission roller chain 19 of the chain structure 5 rolls on the first motor end sprocket 10 and the second motor end sprocket 22 of the chain structure 5. Through one end of the lower connecting rod 14 of the transmission sprocket system 6, the second motor end sprocket 22 and the first double sprocket 53 of the chain structure 5 are made coaxial. The rotation drives the first double-row conveyor roller chain 20 of the chain structure 5 to rotate. The first double-row conveyor roller chain 20 of the chain structure 5 runs from the first motor end sprocket 10 of the chain structure along the second end redirecting sprocket 72, the first end redirecting sprocket 71, the second tensioning pulley 29, the second motor end sprocket 22, and the first tensioning pulley 21, and finally returns to the first motor end sprocket 71 of the chain structure 5. Through the connection of the other end of the lower connecting rod 14 of the transmission sprocket system 6 and the other end of the upper connecting rod 13 of the guide device 40, the second double-row conveyor roller chain 49 of the chain structure 5 moves in the same direction and at the same speed as the first double-row conveyor roller chain 20, reducing energy loss during power transmission and improving power transmission efficiency. The fixed connection method avoids relative swaying between the motor and reducer 17 and the first motor end sprocket 11, ensuring the accuracy and stability of the chain conveying, enabling the material to be conveyed at the predetermined speed and position, reducing noise and wear caused by vibration, and extending the service life of the equipment.

[0136] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A lifting conveyor, characterized in that, include: A frame is mounted on the lifting conveyor. A guiding device, which is fixed on the frame; A reversing device, wherein the reversing device is mounted on the guiding device; A chain structure is provided above the frame; the chain structure is guided by the guiding device. The reversing device redirects the chain, enabling multi-stage speed changes and synchronous positioning of the chain structure. A pneumatic device is fixed at the bottom of the frame; the pneumatic device can drive the chain structure to rise or fall by extending or retracting, thereby changing the material conveying height.

2. The lifting conveyor according to claim 1, characterized in that, The rack includes: Side plate, the side plate is fixed on the frame; Main connecting frame, the main connecting frame is fixed on the frame; A support base is fixed on the frame below the main connecting frame; the support base is fixedly connected to the guide mechanism of the guide device below the pneumatic device.

3. The lifting conveyor according to claim 1, characterized in that, The guiding device includes: A guiding mechanism is fixed on the side plate and the main connecting frame of the frame; The first chain track is fixed above the side plate and the main connecting frame of the frame; The second chain track is fixed above the side plate of the frame and on one side of the first chain track; A drive sprocket system is provided on the main connecting frame of the machine frame; An upper connecting rod is fixedly connected between the first chain track and the second chain track.

4. The lifting conveyor according to claim 3, characterized in that, The guiding mechanism includes: The first guide rod, a plurality of the first guide rods are fixedly connected to one side of the side plate of the frame and the main connecting frame; The second guide rod is fixedly connected to the side plate of the frame and the other side of the main connecting frame. The first linear bearing is movably connected to a plurality of the first guide rods respectively; The second linear bearing is movably connected to several of the second guide rods; A lifting platform is fixedly connected to the main connecting frame of the machine frame, on the first linear bearing and the second linear bearing.

5. The lifting conveyor according to claim 1, characterized in that, The redirection device includes: A redirecting sleeve bracket is fixedly connected to both sides of the upper connecting rod of the guide device; A number of redirecting sprocket shafts are fixedly connected to the main connecting frame of the machine frame; The inner ring of the third bearing is fixedly connected to each of the several redirecting sprocket shafts; A sprocket redirection sleeve is fixedly connected to the outer ring of the third bearing; the third bearing is between the redirection sprocket shaft and the sprocket redirection sleeve; the inner ring of the third bearing is stationary, while the outer ring of the third bearing rotates. Positioning rings, wherein a plurality of positioning rings are fixed on a plurality of the redirecting sprocket shafts; The first end redirecting sprocket is fixedly connected to the inner hole of the first end redirecting sprocket on the outer circle of the sprocket redirecting sleeve, and the chain on one side of the first chain track of the guide device is connected to the outer side of the first end redirecting sprocket. The second end redirecting sprocket is fixedly connected to the inner hole of the second end redirecting sprocket on the outer circle of the sprocket redirecting sleeve, and the chain on the other side of the first chain track of the guide device is connected to the outer side of the second end redirecting sprocket. The third end redirecting sprocket is fixedly connected to the inner hole of the third end redirecting sprocket on the outer circle of the sprocket redirecting sleeve, and the outer side of the third end redirecting sprocket is connected to the chain on one side of the second chain track of the guide device. The fourth end redirecting sprocket is fixedly connected to the inner hole of the fourth end redirecting sprocket on the outer circle of the sprocket redirecting sleeve, and the chain on the other side of the second chain track of the guide device is connected to the outer side of the fourth end redirecting sprocket.

6. The lifting conveyor according to claim 1, characterized in that, The chain structure includes: A first double-row conveyor roller chain is provided above the side plate and the main connecting frame of the machine frame; A second double-row conveyor roller chain is provided above the side plate and main connecting frame of the frame, and on one side of the first double-row conveyor roller chain. The output shaft is transitionally connected to the main connecting frame of the frame. A first bearing is fixedly connected to the output shaft; The inner side of the first motor end sprocket is fixedly connected to the outer ring of the first bearing, and the outer side of the first motor end sprocket is connected to the first double-row conveying roller chain and the single-row transmission roller chain. The shaft is transitionally connected to the main connecting frame of the frame on one side of the output shaft; A second bearing is fixedly connected to the shaft; The inner side of the second motor end sprocket is fixedly connected to the outer ring of the second bearing, and the outer side of the second motor end sprocket is connected to the first double-row conveying roller chain and the single-row transmission roller chain. A single-row drive roller chain is movably connected to the sprockets at the first motor end and the second motor end; The first tensioning wheel is meshed between the first motor end sprocket and the second motor end sprocket. The second tensioning pulley is engaged with the second tensioning pulley on the other side of the sprocket at the end of the second motor. The first sprocket cover is fixedly connected to the main connecting frame of the frame above the first motor end sprocket; The second sprocket cover is fixedly connected to the main connecting frame of the machine frame above the second motor end sprocket, on one side of the first sprocket cover.

7. The lifting conveyor according to claim 3, characterized in that, The transmission sprocket system includes: The lower connecting rod is movably connected to the main connecting frame via a bearing seat. The first double sprocket is coaxially connected to one side of the second motor end sprocket in the chain structure; The second double sprocket is coaxially connected to the second double sprocket on the other side of the second motor end sprocket; the lower connecting rod passes through the first double sprocket, the second double sprocket and the second motor end sprocket.

8. The lifting conveyor according to claim 1, characterized in that, The pneumatic device includes: An electrical component mounting plate is fixed on the support base of the frame; A double-layer airbag cylinder is fixed on the electrical component mounting plate. A one-way throttle valve is connected to one side of the airbag-type double-layer cylinder via an air pipe; A solenoid valve is connected to one side of the one-way throttle valve via an air pipe; A silencer is installed on one side of the solenoid valve; A pressure regulating filter is connected to one side of the solenoid valve via an air pipe; A manual sliding valve is connected to one side of the pressure regulating filter via an air pipe; The inlet is connected to one side of the hand slide valve via an air pipe.

9. The lifting conveyor according to claim 6, characterized in that, Cover the first double-row conveyor roller chain and the second double-row conveyor roller chain with an upper cover plate.

10. The lifting conveyor according to claim 1, characterized in that, A motor and a reducer are mounted on the main connecting frame of the frame. The motor and reducer are fixedly connected to the first motor end sprocket of the chain structure via the output shaft of the chain structure. The motor and reducer generate power, which is transmitted to the first motor end sprocket of the chain structure. The first motor end sprocket of the chain structure drives the second motor end sprocket of the chain structure to rotate via a single-row drive roller chain. The single-row drive roller chain of the chain structure rolls on the first and second motor end sprockets of the chain structure. Through one end of the lower connecting rod of the drive sprocket system of the guide device, the chain structure... The second motor end sprocket and the first double sprocket rotate coaxially, thereby driving the first double-row conveyor roller chain of the chain structure to operate. The first double-row conveyor roller chain of the chain structure runs from the first motor end sprocket of the chain structure along the second end redirecting sprocket, the first end redirecting sprocket, the second tensioning wheel, the second motor end sprocket, and the first tensioning wheel, and finally returns to the first motor end sprocket of the chain structure. Through the connection of the other end of the lower connecting rod of the transmission sprocket system and the other end of the upper connecting rod of the guide device, the second double-row conveyor roller chain of the chain structure moves in the same direction and at the same speed as the first double-row conveyor roller chain.

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