A single-column cantilever lifting device and conveying system

Abstract

The present invention provides a single-column cantilever lifting device and a conveying system, which are used to lift a conveying object being conveyed on a roller conveyor to a predetermined position or to lower the conveying object from a predetermined position and place it on the roller conveyor, and is characterized in that it includes: a supporting column extending in a vertical direction; a lifting mechanism installed on the supporting column; a bearing component installed on the lifting mechanism and used to carry the conveying object; and a driving mechanism used to drive the lifting mechanism so that the bearing component can be lifted and moved, wherein the bearing component is composed of a plurality of fork teeth, which match a plurality of intervals formed by a plurality of pairs of adjacent conveying rollers corresponding to the predetermined positions in the roller conveyor, and the width of the fork teeth is less than the spacing between two adjacent conveying rollers.

Description

Technical Field

[0001] The invention relates to the field of conveying equipment and lifting equipment, and in particular to a single-column cantilever lifting device and a conveying system. Background Art

[0002] During the process of conveying the conveying object by the conveying equipment, a lifting device is needed to lift the conveying object to the predetermined working position so that the staff can perform the working task on the conveying object or to lower the conveying object from the predetermined working position and place it on the conveying equipment for further transportation.

[0003] Traditional lifting devices generally adopt a bottom vertical jacking structure or a multi-column gantry structure. However, the vertical jacking structure will affect the conveying channel of the conveying device when lifting the conveying object, causing the conveying mechanism to stop working when the operator is performing the operation task on the conveying object, thereby reducing the conveying efficiency. The installation structure of the multi-column gantry structure is complex and occupies a large space, resulting in too small working space for the operator and low working efficiency.

[0004] In addition, the lifting mechanism of a traditional lifting device is generally located above the conveying surface of the conveying device. When there is no need to lift the conveyed object, it will affect the conveying of the conveyed object (for example, blocking the conveying channel of the conveyed object, the conveyed object falling from the conveying surface, etc.), reducing the conveying speed and stability of the conveying device. Summary of the invention

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] The present invention provides a single-column cantilever lifting device, which is used to lift a conveying object on a roller conveyor to a predetermined position or to lower the conveying object from a predetermined position and place it on the roller conveyor, and is characterized in that it includes: a supporting column extending in a vertical direction; a lifting mechanism installed on the supporting column; a bearing component installed on the lifting mechanism and used to carry the conveying object; and a driving mechanism, which is used to drive the lifting mechanism so that the bearing component can be lifted and moved, wherein the bearing component is composed of a plurality of fork teeth, which match a plurality of intervals formed by a plurality of pairs of adjacent conveying rollers corresponding to the predetermined positions in the roller conveyor, and the width of the fork teeth is less than the spacing between two adjacent conveying rollers.

[0007] The present invention provides a single-column cantilever lifting device, which may also have the following characteristics: the bearing component also includes a fork tine mounting seat for installing fork tine, each fork tine extends along the length direction of the conveying roller, and the fork tine located at the frontmost in the conveying direction of the roller conveyor is a stop fork tine, and a stop plate extending upward in the vertical direction is installed on the stop fork tine, and the stop plate is used to limit the displacement of the conveyed object along the conveying direction of the roller conveyor.

[0008] The present invention provides a single-column cantilever lifting device, which may also have the following characteristics: a sliding groove extending in the vertical direction is provided on the supporting column, and the lifting mechanism is arranged in the sliding groove, and has: at least one driving wheel, located at one end of the supporting column, installed on the driving shaft of the driving mechanism; at least one driven wheel, installed on the other end of the supporting column; a synchronous belt, which is installed around the driving wheel and the driven wheel; and a sliding assembly, which is installed on the synchronous belt.

[0009] The present invention provides a single-column cantilever lifting device, which may also have the following features: the sliding assembly comprises: a guide wheel mounting seat, having a first surface and a second surface arranged in a vertical direction and parallel to each other; and a plurality of pairs of lifting guide wheels, each pair of lifting guide wheels being respectively mounted on the first surface and the second surface, the diameter of the lifting guide wheels being adapted to the depth of the sliding groove, thereby limiting the displacement of the sliding assembly along the depth direction of the sliding groove.

[0010] The present invention provides a single-column cantilever lifting device, which may also have the following characteristics: the guide wheel mounting seat also has a third surface arranged in the vertical direction and perpendicular to the first surface, and the sliding assembly also has at least one connecting rod for installing the bearing component, which extends in the horizontal direction and is installed on the third surface perpendicularly to the third surface.

[0011] The present invention provides a single-column cantilever lifting device, which may also have the following characteristics: the sliding assembly also has at least one limiting guide wheel, the number of which is equal to the connecting rod, and the limiting guide wheel is installed on the third surface through the connecting rod. The diameter of the limiting guide wheel is adapted to the width of the sliding groove, thereby limiting the displacement of the sliding assembly along the width direction of the sliding groove.

[0012] The present invention provides a single-column cantilever lifting device, which may also have the following characteristics: the sliding assembly also has two synchronous belt pressure plates, which are installed on the third surface and located at the upper and lower ends of the guide wheel mounting seat for installing the synchronous belt.

[0013] The present invention provides a single-column cantilever lifting device, which may also have the following characteristics: the sliding assembly also has at least one pair of anti-collision buffer columns, which are respectively mounted on the upper end surface and the lower end surface of the guide wheel mounting seat.

[0014] The present invention provides a single-column cantilever lifting device, which is characterized in that it also includes: a control unit, which is used to control a driving mechanism to drive the lifting mechanism, so as to lift the bearing component to a predetermined stop position for stopping the conveying object. A sensing module that is communicated with the control unit is also provided on the stop plate. When the stop plate stops the conveying object, the sensing module generates a sensing signal and sends it to the control unit. When the control unit receives the sensing signal, it controls the driving mechanism to drive the lifting mechanism, so as to lift the bearing component from the stop position to a predetermined working position.

[0015] The present invention provides a conveying system for conveying a conveying object, characterized in that it comprises: a conveying device having a plurality of conveying rollers for conveying the conveying object along the length direction of the conveying device; and a single-column cantilever lifting device, both of which are arranged near the conveying mechanism and are used to lift the conveying object being conveyed on the conveying device to a predetermined position or to lower the conveying object from the predetermined position and place it on the conveying device, wherein each fork tooth of each load-bearing component matches a plurality of intervals formed by a plurality of pairs of adjacent conveying rollers corresponding to the predetermined positions in the roller conveyor, and the width of the fork tooth is smaller than the spacing between two adjacent conveying rollers.

[0016] Function and Effect of the Invention

[0017] According to the single-column cantilever lifting device of the present invention, due to the single-column cantilever structure, when the conveying object is lifted to the working position, it will not affect the conveying channel of the conveying device. Therefore, when the conveying object is lifted to the working position for the operator to work or the conveying object is lowered and placed on the conveying device, the conveying device does not need to stop conveying the conveying object, which greatly improves the conveying efficiency of the conveying device. In addition, since the initial position of the bearing component is located below the conveying surface of the conveying device, the bearing component will not affect the conveying of the conveying device during the conveying process, thereby improving the conveying speed and stability.

[0018] According to the conveying system of the present invention, since it has multiple single-column cantilever lifting devices, multiple work stations are formed. Therefore, during the conveying process, the operators can use multiple work stations that do not affect each other to work on the conveying objects at the same time, thereby increasing the work efficiency of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural schematic diagram of a single-column cantilever lifting device according to an embodiment of the present invention;

[0020] Figure 2 is a side view of a single-column cantilever lifting device according to an embodiment of the present invention;

[0021] Figure 3It is a structural block diagram of a single-column cantilever lifting device according to an embodiment of the present invention;

[0022] Figure 4 is a cross-sectional view of the installation structure of the lifting mechanism of an embodiment of the present invention;

[0023] Figure 5 is a schematic structural diagram of a pulley assembly according to an embodiment of the present invention;

[0024] Figure 6 It is a cross-sectional view of the installation structure of the pulley assembly according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the single-column cantilever lifting device of the present invention is specifically described below in conjunction with the accompanying drawings.

[0026] <Example 1>

[0027] Figure 1 1 is a schematic structural diagram of a single-column cantilever lifting device according to an embodiment of the present invention. Figure 2 is a side view of a single-column cantilever lifting device according to an embodiment of the present invention, Figure 3 It is a structural block diagram of a single-column cantilever lifting device according to an embodiment of the present invention.

[0028] like Figure 1 to Figure 3 As shown, the single-column cantilever lifting device 100 of this embodiment adopts a single-column cantilever structure, which is used to lift the conveyed object on the roller conveyor to a predetermined position or to lower the conveyed object from a predetermined position and place it on the roller conveyor, and includes a mounting base 10, a support column 20, a lifting mechanism 30, a bearing component 40, a driving mechanism 50, a control unit 60 and a sensing module 70. In this embodiment, the roller conveyor has a conveying device composed of a plurality of conveying rollers with uniform spacing, and the conveyed object is a cargo turnover box.

[0029] The mounting base 10 is installed on the ground near the conveying mechanism by four anchor screws. In other embodiments, the mounting base 10 can also be installed on the mounting bracket of the roller conveyor, so that the roller conveyor and the single-column cantilever lifting device form an integrated structure.

[0030] The support column 20 is installed on the mounting base 10 in the vertical direction and is a 100mm*100mm hollow rectangular steel pipe. Both end faces of the support column 20 are sealed and have a sliding groove 201 extending in the vertical direction. In other embodiments, the support column 20 can also be a steel pipe or aluminum pipe with other cross-sectional patterns (such as circular or triangular, etc.).

[0031] Figure 4It is a cross-sectional view of the installation structure of the lifting mechanism according to an embodiment of the present invention.

[0032] like Figure 4 As shown, the lifting mechanism 30 is disposed on the supporting column 20 and is located in the sliding groove 201 , and includes a driving wheel 301 , a driven wheel 302 , a synchronous belt 303 and a sliding assembly 304 .

[0033] The driving wheel 301 is located at one end of the supporting column 20 and is mounted on the driving shaft of the driving mechanism 50. In this embodiment, the driving wheel 301 is located at the lower end of the supporting column 20.

[0034] The driven wheel 302 is installed at the other end of the support column 20. In this embodiment, the driven wheel 302 is located at the upper end of the support column 20.

[0035] The synchronous belt 303 is a toothed synchronous belt, which is installed around the driving wheel 301 and the driven wheel 302 .

[0036] Figure 5 is a schematic structural diagram of a pulley assembly according to an embodiment of the present invention, Figure 6 It is a cross-sectional view of the installation structure of the pulley assembly according to an embodiment of the present invention.

[0037] like Figure 5 and Figure 6 As shown, the sliding assembly 304 is installed on the synchronous belt 303, and the driving wheel 301, the driven wheel 302 and the synchronous 303 cooperate with each other to enable the sliding assembly 304 to slide in the sliding groove 201, including a guide wheel mounting seat 304a, a lifting guide wheel 304b, a lifting guide wheel shaft 304c, a connecting rod 304d, a limiting guide wheel 304e, a synchronous belt pressure plate 304f and an anti-collision buffer column 304g.

[0038] The guide wheel mounting seat 304a has a first surface 304a-1 and a second surface 304a-2 arranged in the vertical direction and parallel to each other, and a third surface 304a-3 arranged in the vertical direction and perpendicular to the first surface 304a-1. In this embodiment, the guide wheel mounting seat 304a is a 50mm*50mm hollow rectangular steel pipe, and the first surface 304a-1 and the second surface 304a-2 are the left side and the right side of the guide wheel mounting seat 304a (such as Figure 5 As shown in FIG. 1 ), the third surface 304a-3 is a front view of the guide wheel mounting seat 304a (as shown in FIG. Figure 5 as shown).

[0039] The lifting guide wheels 304b are used in pairs, and each pair of lifting guide wheels 304b is respectively mounted on the lifting guide wheel shaft 304c of the first surface 304a-1 and the second surface 304a-2 through lifting rolling bearings. In this embodiment, there are two lifting guide wheel shafts 304c, which extend in the horizontal direction and pass through the first surface 304a-1 and the second surface 304a-2, and are respectively located at the upper end and the lower end of the guide wheel mounting seat 304a. There are two pairs of lifting guide wheels 304b, which are rubber-coated guide wheels, that is, two corresponding lifting guide wheels 304b are mounted on one lifting guide wheel shaft 304c. In other embodiments, the lifting guide wheel shaft 304c can also be mounted on the guide wheel mounting seat 304a by welding or gluing.

[0040] The diameter of the lifting guide wheel 304b is adapted to the depth of the sliding groove 201, thereby limiting the sliding assembly 304 along the depth direction of the sliding groove 201 (ie, Figure 6 displacement in the left and right directions as shown).

[0041] The connecting rod 304d extends in the horizontal direction and is installed on the third surface 304a-3 perpendicularly to the third surface 304a-3, and is used to install the bearing component 40. In this embodiment, there are two connecting rods 304d, which are installed on the third surface 304a-3 in the vertical direction by welding, and the surface of the connecting rod 304d has a mounting thread for installing the bearing component 40.

[0042] The number of the limiting guide wheels 304e is equal to the number of the connecting rods 304d, and they are mounted on the third surface 304a-3 through the connecting rods 304d. In this embodiment, the limiting guide wheels 304e are rubber-coated limiting wheels, and the number is 2. They are mounted on the third surface 304a-3 through limiting rolling bearings and are located at the mounting end of the connecting rod 304d and the guide wheel mounting seat 304a.

[0043] The diameter of the limiting guide wheel 304e is adapted to the width of the sliding groove 201, thereby limiting the sliding assembly 304 along the width direction of the sliding groove 201 (ie, Figure 6 displacement in the anterior-posterior direction).

[0044] The synchronous belt pressing plate 304f is installed on the third surface 304a-3 and is located at the upper and lower ends of the guide wheel mounting seat 304, and is used to install the synchronous belt 303. In this embodiment, the number of the synchronous belt pressing plates 304f is two, which are detachably installed on the guide wheel mounting seat 304a by screws. During installation, the two ends of the synchronous belt 303 are respectively placed in the gap between the two synchronous belt pressing plates 304f and the guide wheel mounting seat 304a and the screws are tightened, so that the synchronous belt pressing plates 304f and the guide wheel mounting seat 304a clamp the synchronous belt 303, and the installation is completed.

[0045] There are two anti-collision buffer columns 304g, which are respectively mounted on the upper end surface and the lower end surface of the guide wheel mounting seat. In this embodiment, the anti-collision buffer columns 304g are made of rubber.

[0046] The bearing component 40 includes a plurality of fork teeth 401 and a fork tooth mounting seat 402, and is located below the conveying surface of the conveying mechanism.

[0047] The fork teeth 401 extend along the length direction of the conveying roller, and the width of the fork teeth 401 is smaller than the spacing between two adjacent conveying rollers. Each fork tooth 401 matches the multiple intervals formed by multiple pairs of adjacent conveying rollers corresponding to the predetermined positions in the roller conveyor (that is, it is located at the multiple intervals formed by the corresponding multiple pairs of adjacent conveying rollers).

[0048] The fork tine 401 located at the frontmost in the conveying direction of the conveying device is a stop fork tine 403, on which a stop sheet 404 extending upward in the vertical direction is installed, and the stop sheet 404 is used to limit the displacement of the conveyed object along the conveying direction of the conveying mechanism.

[0049] In this embodiment, the number of fork teeth 401 is 6, the width of the fork teeth 401 is less than the spacing between two adjacent conveying rollers, each fork tooth 401 is evenly installed on the fork tooth mounting seat 402 along the length direction of the fork tooth mounting seat 402, and is arranged in a comb-like shape in the intervals formed by the multiple pairs of adjacent conveying rollers corresponding to each fork tooth 401 (i.e., similar to the tooth and slot structure, the six fork teeth 401 are respectively embedded in the intervals formed by the six corresponding multiple pairs of adjacent conveying rollers). Among them, the stopper sheet 404 is detachably installed on the stopper fork tooth 403, and the remaining fork teeth 401 are all rectangular tubes. In this embodiment, the stopper fork tooth 403 can also adopt an L-shaped folding plate, which has a stopper portion extending upward in the vertical direction. In other embodiments, the fork teeth 401 can also adopt pipes with other cross-sectional shapes (such as round tubes, round bars, square steels, folding plates, etc.).

[0050] The fork tine mounting seat 402 is provided with a mounting through hole that matches the connecting rod 304d. In the present embodiment, the number of the mounting through holes is 2, and the positions of the mounting through holes correspond to the positions of the connecting rod 304d, so that the connecting rod 304d can pass through the corresponding mounting through hole and the fork tine mounting seat 402 can be installed on the connecting rod 304d through a nut.

[0051] The driving mechanism 50 is a driving motor. In this embodiment, the driving motor adopts a hollow shaft motor reducer, which is installed on the motor mounting seat 501 at the lower end of the supporting column 20 to drive the lifting mechanism 30 and has a driving shaft for mounting the driving wheel 301 .

[0052] The following describes the driving method of the lifting mechanism 30 by the driving mechanism 50 of this embodiment in conjunction with the accompanying drawings, specifically:

[0053] The driving motor drives the driving wheel 301 , thereby driving the sliding assembly 304 to move up and down in the vertical direction with the cooperation of the synchronous belt 303 and the driven wheel 302 , and then driving the bearing component 40 to move up and down in the vertical direction, and further moving the conveying object carried by the bearing component 40 up and down.

[0054] The single-column cantilever lifting device 100 of this embodiment is used in conjunction with a roller conveyor, which is used to convey the conveying object and has a conveying device composed of a plurality of conveying rollers with uniform spacing. The single-column cantilever lifting device 100 is installed near the conveying mechanism, and the initial position of the bearing component 40 is located below the conveying surface of the conveying device.

[0055] The control unit 60 is a control chip or a single-chip microcomputer with a predetermined control program and a control panel for operators to input commands. It is connected to the other components of the single-column cantilever lifting device 100 for communication (for example, communication line connection or wireless communication connection) and is used to control the operation of the other components of the single-column cantilever lifting device 100, specifically including the operator inputting a control electrical signal through the control panel according to the operation requirements, that is, controlling the forward or reverse rotation of the drive motor, thereby raising and lowering the lifting mechanism, and then lifting or lowering the load-bearing component to the predetermined position required by the operator.

[0056] The sensing module 70 is a photoelectric sensor, which is arranged near the predetermined stop position. It determines whether the target conveying object has reached and stopped at the predetermined stop position (that is, determines whether the stop fork has completed the stopping of the target conveying object) by means of photoelectric detection. When it is determined that the target conveying object has reached and stopped at the predetermined stop position, the sensing module 70 generates a sensing signal and sends it to the control unit 60.

[0057] In other embodiments, a sensing module 70 may be further provided on the stopper sheet 404 . The sensing module 70 is a pressure sensor. When the stopper sheet 404 stops the conveyed object, the sensing module 70 generates a sensing signal and sends it to the control unit 60 .

[0058] The working method of the single-column cantilever lifting device 100 of this embodiment is described below in conjunction with the accompanying drawings, specifically:

[0059] Step one, when the operator needs to operate on the conveying object, the control electrical signal is input through the control panel of the control unit 60 according to the operation requirements, thereby controlling the drive motor to drive the lifting mechanism 30, so that the supporting component 40 is lifted a short distance at a relatively small speed V1 to reach the stop position, so that the stop plate 404 exceeds the conveying surface of the conveying mechanism, thereby stopping the target conveying object, that is, limiting the displacement of the target conveying object along the conveying direction of the conveying device, and then proceeding to step two.

[0060] Step 2: When the sensing module 70 senses that the target conveying object has arrived at and stopped at a predetermined stop position, a sensing signal is generated and sent to the control unit 60, and then the process proceeds to step 3.

[0061] In step three, the control unit 60 controls the driving motor to drive the lifting mechanism 30, so that the bearing component 40 continues to be lifted to the predetermined working position at a relatively high speed V2, so that the operator can operate on the target conveying object, and then enters step four.

[0062] Step 4, when the worker completes the work, he inputs a control electrical signal through the control panel of the control unit 60, thereby controlling the drive motor to drive the lifting mechanism, so that the supporting component 40 descends to the initial position (that is, returns to below the conveying surface of the conveying device).

[0063] <Example 2>

[0064] In the second embodiment, the same symbols are given to the same structures, methods and conditions as those in the first embodiment, and the same descriptions are omitted.

[0065] The conveying system in this embodiment includes a conveying device and a plurality of single-column cantilever lifting devices 100 in the first embodiment.

[0066] Each single-column cantilever lifting device 100 is installed near the device to form multiple operations. Among them, the initial position of the bearing member 40 is the same as that of the first embodiment, and the working mode of each single-column cantilever lifting device 100 is also the same as that of the first embodiment.

[0067] Example Function and Effect

[0068] According to the single-column cantilever lifting device of this embodiment, due to the single-column cantilever structure, when the conveying object is lifted to the working position, it will not affect the conveying channel of the conveying device. Therefore, when the conveying object is lifted to the working position for the operator to work or the conveying object is lowered and placed on the conveying device, the conveying device does not need to stop conveying the conveying object, which greatly improves the conveying efficiency of the conveying device. In addition, since the initial position of the bearing component is located below the conveying surface of the conveying device, the bearing component will not affect the conveying of the conveying device during the conveying process, thereby improving the conveying speed and stability.

[0069] Furthermore, since the single-column cantilever lifting device of this embodiment can be directly installed on the roller conveyor to form an integrated structure, it can provide a larger working space for the operators, while realizing concealed installation of the work station, ensuring the compactness and aesthetics of the overall structure.

[0070] Since the stop fork has a stop plate, when it is necessary to operate the conveying object, the driving mechanism first lifts the carrying component a short distance so that the stop plate prevents the movement of the conveying object, and then continues to lift the conveying object to the operating position. Therefore, the stopping and lifting process of the conveying object is more stable, and it is not easy for the conveying object to fall off the conveying mechanism.

[0071] Since the supporting column has a sliding groove and the sliding assembly is located in the sliding groove, the sliding assembly can move in the sliding groove along the vertical direction under the drive of the driving mechanism, thereby driving the bearing component to lift the conveying object.

[0072] Furthermore, since the diameter of the lifting guide wheel is adapted to the depth of the sliding groove, the displacement of the sliding component along the depth direction of the sliding groove is limited; the diameter of the limiting wheel is adapted to the width of the sliding groove, the displacement of the sliding component along the width direction of the sliding groove is limited, thus forming a four-way limit. Therefore, the sliding of the sliding component in the sliding groove is more stable, and the sliding component will not slip out of the sliding groove.

[0073] Since there is at least one pair of anti-collision buffer columns, the mechanical impact caused by the sliding component rushing or impacting the upper or lower end of the sliding groove due to loss of control can be alleviated, thereby improving the stability and safety of the single-column cantilever lifting device of this embodiment.

[0074] According to the conveying system of this embodiment, since it has multiple single-column cantilever lifting devices, multiple work stations are formed. Therefore, during the conveying process, operators can use multiple work stations to work on the conveyed objects at the same time, thereby increasing the work efficiency of the operators.

[0075] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in the field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

[0076] For example, the single-column cantilever lifting devices in the above embodiments all have separate control units. In practical applications, the single-column cantilever lifting devices provided by the present invention can also control the lifting of all single-column cantilever lifting devices through one control device.

[0077] For example, in the above embodiment, the synchronous belt adopts a structure in which a driving wheel, a driven wheel and a synchronous toothed belt cooperate with each other to regularly control the stroke of the load-bearing component in the vertical direction. In the single-column cantilever lifting device provided by the present invention, a chain sprocket structure or a rope structure can also be used to control the stroke of the load-bearing component.

[0078] For example, in the above-mentioned embodiment, the movement of the bearing component in the vertical direction is achieved through the structure of the guide wheel assembly and the sliding groove. In the single-column cantilever lifting device provided by the present invention, a special slide rail can also be installed on the supporting column, and a slider can be used to drive the bearing component, and the movement of the bearing component in the vertical direction is achieved through the structure of the slide rail and the slider.

Claims

1. A single-column cantilever lifting device, used to lift the conveyed object on the roller conveyor to a predetermined position or to lower the conveyed object from a predetermined position and place it on the roller conveyor, characterized in that: include: A support column extending in a vertical direction, both end faces of the support column are sealed, and a sliding groove extending in a vertical direction is provided on the support column; A lifting mechanism, mounted on the supporting column and located in the sliding slot; A bearing component, mounted on the lifting mechanism, for bearing the conveying object; as well as A driving mechanism, used to drive the lifting mechanism so that the bearing component can be lifted and moved, The bearing member is composed of a plurality of fork teeth, which match a plurality of intervals formed by a plurality of pairs of adjacent conveying rollers corresponding to the predetermined positions in the roller conveyor. The width of the fork teeth is smaller than the distance between two adjacent conveying rollers; Wherein, the bearing component further comprises a fork tine mounting seat for mounting the fork tine, Each of the fork teeth extends along the length direction of the conveying roller. The fork teeth located at the frontmost in the conveying direction of the roller conveyor are stop fork teeth, which are used to limit the displacement of the conveyed object along the conveying direction of the roller conveyor; The lifting mechanism has a sliding assembly, which is located in the sliding groove and has at least one connecting rod for mounting the bearing component, and the connecting rod extends in the horizontal direction; Wherein, the sliding assembly has at least one limiting guide wheel, The number of the limiting guide wheels is equal to that of the connecting rod, and the limiting guide wheels are installed on the connecting rod. The diameter of the limiting guide wheel is adapted to the width of the sliding groove, so that the limiting guide wheel contacts the inner wall of the supporting column, thereby limiting the displacement of the sliding assembly along the width direction of the sliding groove; Wherein, the sliding component comprises: A guide wheel mounting seat having a first surface and a second surface arranged in a vertical direction and parallel to each other; and A plurality of pairs of lifting guide wheels, each pair of the lifting guide wheels is mounted on the first surface and the second surface respectively, The diameter of the lifting guide wheel is adapted to the depth of the sliding groove, so that the lifting guide wheel contacts the inner wall of the supporting column, thereby limiting the displacement of the sliding assembly along the depth direction of the sliding groove.

2. The single-column cantilever lifting device according to claim 1, characterized in that: in, A stop sheet extending upward in a vertical direction is detachably mounted on the stop fork tine.

3. The single-column cantilever lifting device according to claim 1, characterized in that: in, The stop fork is an L-shaped folded plate having a stop portion extending upward in a vertical direction.

4. The single-column cantilever lifting device according to claim 1, characterized in that: in, The lifting mechanism also has: At least one driving wheel, mounted on the driving shaft of the driving mechanism and located at one of the upper end or the lower end of the supporting column; At least one driven wheel mounted on the other of the upper end or the lower end of the support column; A synchronous belt is installed around the driving wheel and the driven wheel. The sliding assembly also has: Two synchronous belt pressure plates are installed on the guide wheel mounting seat and are located at the upper end and the lower end of the guide wheel mounting seat, and are used to fix the synchronous belt on the guide wheel mounting seat.

5. The single-column cantilever lifting device according to claim 1, characterized in that: in, The sliding assembly also has at least one pair of anti-collision buffer columns. The anti-collision buffer columns are respectively mounted on the upper end surface and the lower end surface of the guide wheel mounting seat.

6. A conveying system for conveying a conveying object, characterized in that: include: A conveying device, comprising a plurality of conveying rollers, for conveying the conveying object along the length direction of the conveying device; The single-column cantilever lifting device described in any one of claims 1 to 5 is arranged near the conveying device and is used to lift the conveying object being conveyed on the conveying device to a predetermined position or to lower the conveying object from a predetermined position and place it on the conveying device. Wherein, the single-column cantilever lifting device also has: a control unit, used to control the driving mechanism to drive the lifting mechanism, so as to lift the bearing component to a predetermined stop position for stopping the conveying object, The sensing module is connected to the control unit for communication. When the stop fork stops the conveyed object, the sensing module generates a sensing signal and sends it to the control unit. When the control unit receives the sensing signal, it controls the driving mechanism to drive the lifting mechanism, so as to lift the bearing component from the stop position to a predetermined working position.

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