CN217676617U - Double-connecting-rod electric scissor lifting mechanism and AGV - Google Patents
Double-connecting-rod electric scissor lifting mechanism and AGV Download PDFInfo
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- CN217676617U CN217676617U CN202221760696.4U CN202221760696U CN217676617U CN 217676617 U CN217676617 U CN 217676617U CN 202221760696 U CN202221760696 U CN 202221760696U CN 217676617 U CN217676617 U CN 217676617U
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Abstract
The utility model discloses an electronic fork lifting mechanism and AGV car of cutting of two connecting rods. The double-connecting-rod electric scissor lifting mechanism comprises a base, an upper cover, a scissor assembly and a push rod assembly; the scissor assembly is arranged between the base and the upper cover; the push rod component drives the scissor component to enable the upper cover to lift relative to the base. The push rod component comprises a motor, a lead screw, a nut, a first connecting rod and a second connecting rod; the motor drives the screw rod to rotate, so that the nut horizontally moves on the base along the screw rod; the lower end of the first connecting rod is hinged with the nut, the upper end of the first connecting rod is hinged with the lower end of the second connecting rod, and the upper end of the second connecting rod is hinged on the first fork arm or the second fork arm. The upper end of the second connecting rod is positioned on the fork arm between the midpoint O and the hinge point D; the motor output shaft is directed from the sliding side of the "X" shaped frame to the articulation side. The AGV car includes the electronic fork lifting mechanism of cutting of two connecting rods of any one above-mentioned item. The scheme can ensure that the maximum thrust of the scissor assembly reaches the minimum value, and greatly prolongs the service life of parts.
Description
Technical Field
The utility model relates to a elevating gear field, concretely relates to electronic fork lifting mechanism and AGV car of cutting of two connecting rods.
Background
The existing scissor lifting mechanism mostly uses hydraulic pressure as power, and a hydraulic push rod or a hydraulic cylinder pushes a scissor bracket to unfold or fold, so as to complete the lifting of a cargo platform. But because hydraulic drive needs hydraulic circuit and pipeline to cooperate, therefore hydraulic pressure is cut fork lifting mechanism most sizes and is huge, and more causes the maintenance and dismantlement more complicated of inside spare part, and the greasy dirt that hydraulic drive produced simultaneously leads to the fact the pollution easily from the multi-environment, and hydraulic drive still can produce huge noise at the during operation. Therefore, the scissor lifting mechanism taking hydraulic pressure as power cannot meet the requirements of small occupied space, convenience in mounting, dismounting and maintenance and silence environmental protection, and particularly cannot meet the requirements when applied to the field of intelligent AGV.
In order to meet the requirements of integrated form, light weight and miniaturization of the intelligent AGV, a motor can be used as power, and a matched screw rod structure and a push rod are adopted to push a scissor fork mechanism to stretch and unfold in the prior art, so that the lifting of the lifting platform is realized. Due to the stress characteristic of the scissor mechanism, the pushing force required by the push rod is the largest when the push rod is pushed, and the stress of the lead screw and the whole mechanism is the largest at the moment; due to the limitation of materials and space size, after each part in the scissor mechanism bears the maximum thrust, the shaft sleeve is greatly abraded and easily fails, so that the shaft and other parts are subjected to dry grinding, and the shaft is also subjected to failure fracture; in addition, the screw and the guide rail slide block are easy to lose effectiveness after bearing the maximum thrust for many times.
Therefore, by using a transmission mode of a lead screw and a push rod, the stress condition of the whole scissor lifting mechanism is poor, and in order to obtain longer service life, the structure of the push rod needs to be changed so as to obtain smaller thrust.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fork elevating system is cut to two link electromotion can solve one or more among the above-mentioned technical problem.
In order to achieve the above purpose, the utility model provides a technical scheme as follows:
a double-connecting-rod electric scissor lifting mechanism comprises a base, an upper cover, a scissor assembly and a push rod assembly;
the scissor assembly is arranged between the base and the upper cover; the push rod component drives the scissor component to enable the upper cover to lift relative to the base;
the scissor assembly comprises a first fork arm and a second fork arm, and the first fork arm and the second fork arm are hinged to form an X-shaped frame by taking a midpoint O of each other as a crossing point;
wherein one side of the X-shaped frame is a hinged side, and the other side is a sliding side; the upper end of the hinged side of the X-shaped frame and the upper cover form a hinged point D, and the lower end of the hinged side of the X-shaped frame and the base form a hinged point A; the upper end and the lower end of the sliding side of the X-shaped frame respectively slide on the upper cover and the base.
The push rod component comprises a motor, a lead screw, a nut, a first connecting rod and a second connecting rod; the motor drives the screw rod to rotate, so that the nut horizontally moves on the base along the screw rod;
the lower end of the first connecting rod is hinged with the nut, the upper end of the first connecting rod is hinged with the lower end of the second connecting rod, and the upper end of the second connecting rod is hinged on the first fork arm or the second fork arm;
and limiting mechanisms are arranged on the upper sides of the first connecting rod and the second connecting rod.
The upper end of the second link is located on the yoke between the midpoint O and the hinge point D.
Further: the motor is mounted on the sliding side of the "X" shaped frame so that the motor output shaft is directed from the sliding side of the "X" shaped frame to the hinged side.
Further: and the first connecting rod is provided with a roller which rolls on the upper surface of the base.
Further: the limiting mechanism comprises a first inclined plane and a second inclined plane which are oppositely arranged; the first inclined plane is arranged at the upper end of the first connecting rod, and the second inclined plane is arranged at the lower end of the second connecting rod; when the first connecting rod and the second connecting rod are positioned at the initial positions, the included angle between the first inclined surface and the second inclined surface is
Wherein
The first inclined surface and the second inclined surface are overlapped when the first connecting rod and the second connecting rod are located at the extreme positions.
Further: the first connecting rod is integrally a triangular rod, and the second connecting rod is integrally a triangular rod.
Further: a speed reducer is arranged between the motor and the screw rod, and the speed reducer is a hole output speed reducer.
Further: the upper end of the first connecting rod is provided with a groove, and the rear end of the second connecting rod enters the groove to be hinged with the first connecting rod.
Further: the upper end and the lower end of the hinged side of the X-shaped frame are respectively provided with a hinged seat, and the hinged seats are respectively fixed on the upper surface of the base and the lower surface of the upper cover.
Further: the upper end and the lower end of the sliding side of the X-shaped frame are respectively provided with a sliding block.
Another object of the utility model is to provide an install electronic AGV of cutting fork elevating system of two connecting rods, can solve one or more among the above-mentioned technical problem.
An AGV car, includes above-mentioned arbitrary one pair of connecting rod electric shear fork lifting mechanism.
The technical effects of the utility model are that:
the utility model discloses in with the push rod of scissors fork subassembly for two connecting rod structures, obtain the best length and the spacing angle of two connecting rods through mechanics analysis, can let the maximum thrust of scissors fork subassembly reach the minimum, greatly prolonged the life of spare part, reduce the number of times of maintenance and dismantlement; in addition, the double-connecting-rod mechanism can lift heavier goods due to the optimized stress condition, so that the applicability of the product is improved; the scheme can realize the advantages of low folding height, large extension stroke and good stability.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic illustration of a push rod of a prior art scissor assembly;
fig. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic diagram showing a detailed structure of the dual link of FIG. 2;
FIG. 4 is a schematic diagram of the structure of the output part of the motor in FIG. 2;
FIG. 5 is the lowest position of the double link in the present embodiment;
FIG. 6 is a push up position of the double link of FIG. 5;
FIG. 7 is a limit position of FIG. 6 in which the double link is pushed up;
FIG. 8 is the uppermost position reached in FIG. 7 with the double link pushed on;
FIG. 9 is a diagrammatic view of the structure of FIG. 2;
FIG. 10 is a schematic view of a force analysis performed on the CD rod of FIG. 9;
FIG. 11 is a schematic view of a force analysis performed on the AC rod of FIG. 9;
FIG. 12 is a schematic view of force analysis performed on the BD stem of FIG. 9;
FIG. 13 is a schematic view of a force analysis performed on the first and second links of FIG. 9;
FIG. 14 is a schematic diagram illustrating force analysis of the first and second linkages of FIG. 13 when they reach a position limit;
wherein the figures include the following reference numerals:
a base 1 and an upper cover 2;
the scissor assembly 3, the first fork arm 31, the second fork arm 32, the hinge seat 33 and the sliding block 34;
the push rod assembly 4, the motor 41, the screw rod 42, the nut 43, the first connecting rod 44, the roller 441, the second connecting rod 45 and the speed reducer 46; a limiting mechanism 5; a first inclined surface 51 and a second inclined surface 52.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and the description are only intended to explain the invention, but not to limit the invention in a proper manner.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that, for example, embodiments of the application described herein may be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Fig. 1 is a schematic structural diagram of a scissor assembly pushed by a single push rod in the prior art.
As shown in fig. 2-3; a double-connecting-rod electric scissor lifting mechanism comprises a base, an upper cover, a scissor assembly and a push rod assembly. The scissor assembly is arranged between the base and the upper cover; the push rod component drives the scissor component to enable the upper cover to lift relative to the base. The scissor assembly comprises a first fork arm and a second fork arm, and the first fork arm and the second fork arm are hinged by taking a midpoint O of each other as a crossing point to form an X-shaped frame. Wherein one side of the X-shaped frame is a hinged side, and the other side is a sliding side; the upper end of the hinged side of the X-shaped frame and the upper cover form a hinged point D, and the lower end of the hinged side of the X-shaped frame and the base form a hinged point A; the upper end and the lower end of the sliding side of the X-shaped frame respectively slide on the upper cover and the base.
The push rod component comprises a motor, a lead screw, a nut, a first connecting rod and a second connecting rod; the motor drives the screw rod to rotate, and the nut moves horizontally on the base along the screw rod.
The lower end of the first connecting rod is hinged with the nut (the hinge point is G), the upper end of the first connecting rod is hinged with the lower end of the second connecting rod (the hinge point is F), and the upper end of the second connecting rod is hinged on the first fork arm or the second fork arm (the hinge point is E); and limiting mechanisms are arranged on the upper sides of the first connecting rod and the second connecting rod.
The upper end of the second link is located on the yoke between the midpoint O and the hinge point D.
The utility model discloses with a push rod among the prior art through reasonable structural optimization, adopt two articulated connecting rods to replace, through the atress analysis, let the mounted position of two connecting rods all be close to the articulated side of "X" shape frame, optimized the atress condition of two connecting rods, the effectual atress condition that has reduced improves life, reduces the output power of product and obtains bigger thrust.
The lifting of the mechanism has four processes, namely a lowest position (shown in figure 5), a lifting position (shown in figure 6), a limiting position (shown in figure 7) and a highest position (shown in figure 8), in order to ensure that the lowest position and the lifting stroke are not changed, the lifting heights of the lifting platform at the lowest position and the highest position are ensured to be the same, and a mathematical model is established for determining the length and the limiting angle of the double-connecting rod.
The double linkage and push rod are simplified as shown in fig. 5-8 below; wherein, beta 0 Is the lowest angle, beta is the thrust angle, beta m At the highest angle, L 0 The length of the push rod is defined as a, the length of the first connecting rod is defined as b, the length of the second connecting rod is defined as epsilon, the included angle between the second connecting rod and the horizontal at the pushing-up position is defined as theta, and the included angle between the push rod and the horizontal at the limiting position is defined as X.
The length b of the second connecting rod and the limiting angle epsilon are set by self, and the known numbers are assumed to be b and epsilon, and the unknown numbers are only a, theta and X.
The geometrical relationship of the push-up position can be obtained as follows:
the geometrical relationship of the limiting position can be obtained as follows:
limiting position push rod and horizontal included angle X:
after the length and the limiting angle of the connecting rod are determined, stress analysis is carried out on the scissor structure, and the stress optimization condition of the double-connecting-rod structure relative to the push rod structure is verified.
The structure diagram of the structure is shown in FIG. 9; wherein L is the length of one fork arm of the X-shaped frame, alpha is the included angle of the X-shaped frame in the horizontal direction, h is the lifting height of the scissor fork mechanism, and L 1 The length from the hinge point E of the second connecting rod and the fork arm to the midpoint O, and delta h is the vertical length between the point G and the point A. The point A and the point D are fixed hinge points (two points on a hinge side), the point B and the point C are hinged with an inner slide block (a sliding side), and a screw is screwed when the scissor assembly is liftedThe mother can move in the horizontal direction, the point O is a hinge point of the two scissors forks, and the point G is hinged with the nut.
First, as shown in fig. 10, a stress analysis is performed on the CD bar; assuming the center of gravity of the weight is at the midpoint of the CD rod and gravity is G, the length of the CD rod is LCD, the equation for the column balance of the CD rod is:
as the point C is connected with the slide block of the scissors fork, FCX =0 in case of neglecting the friction force; obtaining:
as shown in fig. 11, the AC pole was analyzed;
finally, the following is obtained:
as shown in fig. 12, for BD stem analysis, then:
since the B point is hinged with the inner scissor slide block, FBX =0; finally, the following can be obtained:
analyzing the double-link (the first link and the second link), as shown in fig. 13, before the limit position, the two links are regarded as two parts, and since the gravity of the links is ignored and the EF rod only receives the acting forces of the two hinges, the EF rod can be regarded as a two-force rod, and the resultant force direction of the EF rod is along the EF rod, and finally the two-force rod is obtained:
as shown in fig. 14, after reaching the position limit. The limit angle epsilon is achieved between the first connecting rod and the second connecting rod, no relative movement exists between the two connecting rods, and because the double-connecting-rod structure ignores the weight and the acting force only applied by two hinge points, the two connecting rods are regarded as one connecting rod, namely an EF rod and a two-force rod, and then the following steps can be obtained:
solving the solutions of all the parties Cheng Lianli to obtain the final expression of the screw thrust, namely FGX;
before the limit position, formula 1 is obtained:
after the limiting position, formula 2 is obtained:
due to the limitation of size and product function, the angle epsilon' is required to be an obtuse angle, so that the situation that the scissor fork structure ascends first and then descends when lifting the platform before the limit of the double connecting rods is realized, and finally the scissor fork structure ascends after the limit is realized is avoided.
As can be known from the formulas 1 and 2, when the length L of the fork arm and the distance L1 between the connecting rod and the hinge point E of the scissors fork and the hinge point O of the scissors fork are determined, the thrust F required by the screw rod is determined GX Decreases with decreasing angle epsilon' or increasing angle beta and, on the other hand, decreases with increasing angle alpha. And the change of the angle epsilon' or the angle beta is related to the lifting height of the scissor lifting mechanism, and the relation formula is as follows:
from the relation, it can be seen that as the height h decreases, α, β decrease, and ε ' increases, so tan α and tan β decrease, while since ε ' is an obtuse angle, the absolute value of tan ε ' also decreases, so the screw thrust increases. Finally, the maximum thrust of the lead screw can be obtained when the scissor lifting mechanism is in the lifting position.
The screw rod maximum thrust of the double connecting rods of the technical scheme and the single-heel push rod in the prior art is compared:
the double-connecting-rod maximum screw thrust FGXmax of the technical scheme is as follows:
single push rod maximum screw rod thrust FGXmax' among the prior art:
through a geometrical relationship, theta = beta +. And FEG can be obtained;
tan θ>tan beta, to give F GXmax <F GXmax ′。
In conclusion, the double-connecting-rod scheme in the technical scheme has a great optimization effect on the stress of the whole mechanism, and the service life of each part is effectively prolonged.
The thrust of the screw rod is reduced along with the rise of the lifting height, so that the thrust of the screw rod is gradually reduced when the double-connecting-rod scheme is at the lowest position to the limit position, and when the limit position is reached, the double-connecting-rod scheme can be regarded as a connecting rod because the double-connecting-rod scheme does not have relative motion, and the motion trail of the connecting rod after the limit position is completely the same as that of the push-rod scheme. Before and after the limit position, the thrust of the screw is driven by the thrust F of the double connecting rods GX Is changed into F GX ' when there is a sudden increase in the thrust of the screw, in order to reduce the impact caused by this sudden increase in the thrust and to ensure that the greater of the thrust at the thrust-up position and the thrust at the limit position can be minimized, the length b of the second link and the limit angle e need to be changed.
Thrust F at push-up position GX1 Where beta is the thrust angle, alpha 1 An included angle h between the scissors and the horizontal direction when in the pushing position min The lowest height of the scissor structure in the pushing position is as follows:
limit position thrust F GX2 Wherein, when X is the limit position, the included angle between the push rod and the horizontal direction is alpha 2 Cut fork and horizontal direction contained angle when for limiting position, then:
the optimization aims to select the most suitable length b of the second connecting rod and the limit angle epsilon under the condition of size limitation, so that F GX1 And F GX2 The larger value of the two values obtains the minimum value, and simultaneously, the change of the screw thrust before and after the limiting position is smaller so as to reduce the impact. After actual data such as load G, scissor length L, lifting mechanism minimum height h and the like in practical application of the AGV trolley field are brought into the scheme, appropriate b and epsilon are taken to obtain F GXmax ′＝1.8F GXmax The maximum thrust is reduced by 44.5%, the stress condition of the whole structure is greatly optimized, compared with a push rod scheme, the stress of parts and a lead screw is reduced, the service life of a product is effectively prolonged, the maintenance frequency is reduced, and therefore the cost is reduced.
In certain embodiments: the motor output shaft is directed from the sliding side of the "X" shaped frame to the hinged side. The arrangement can lead the structure to be more compact and the space to be more reasonably utilized.
In certain embodiments: and the first connecting rod is provided with a roller which rolls on the upper surface of the base. The roller sets up three to be excellent. Three gyro wheels directly support first connecting rod and remove here, therefore the articulated shaft between first connecting rod and the second connecting rod no longer receives vertical power, and the atress condition has the optimization, can enough guarantee intensity, has also prolonged life.
In certain embodiments: the limiting mechanism comprises a first inclined plane and a second inclined plane which are oppositely arranged; the first inclined plane is arranged at the upper end of the first connecting rod, and the second inclined plane is arrangedAt the lower end of the second connecting rod; when the first connecting rod and the second connecting rod are positioned at the initial positions, the included angle between the first inclined surface and the second inclined surface is
Wherein
The first inclined surface and the second inclined surface are overlapped when the first connecting rod and the second connecting rod are located at the extreme positions.
The structure improves the strength of the connecting rod, and the limiting inclined plane and the connecting rod are of an integral structure; the concentrated stress is effectively reduced, and the occurrence of breakage or collapse of the dike is avoided; the service life of the product is prolonged.
In certain embodiments: the first connecting rod is integrally a triangular rod, and the second connecting rod is integrally a triangular rod. The long limit of triangle-shaped pole is the base, and both sides have an inclined plane, to first inclined plane second inclined plane, has at first increased the thickness on inclined plane, secondly has a support when laminating to relative inclined plane, has both wholly improved the intensity of connecting rod, has also increased stop gear's intensity simultaneously, further assurance safety in utilization.
In certain embodiments: a speed reducer is arranged between the motor and the screw rod, and the speed reducer is a hole output speed reducer. The overall occupied space is reduced.
In certain embodiments: the upper end of the first connecting rod is provided with a groove, and the rear end of the second connecting rod enters the groove to be hinged with the first connecting rod. The connection strength is improved, and the use safety is ensured.
In certain embodiments: the upper end and the lower end of the hinged side of the X-shaped frame are respectively provided with a hinged seat, and the hinged seats are respectively fixed on the upper surface of the base and the lower surface of the upper cover. The connection strength of the upper cover and the base is improved, and the service life is guaranteed.
In certain embodiments: the upper end and the lower end of the sliding side of the X-shaped frame are respectively provided with a sliding block. Guarantee to use smoothly, reduce the wearing and tearing of yoke tip, improve life.
In some embodiments, the present invention further provides an AGV vehicle, comprising the dual link electric scissor lift mechanism of any of the above.
This AGV car can use longer time, and the life-span is longer.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A double-connecting-rod electric scissor lifting mechanism comprises a base, an upper cover, a scissor assembly and a push rod assembly;
the scissor assembly is arranged between the base and the upper cover; the push rod component drives the scissor component to enable the upper cover to lift relative to the base;
the scissor assembly comprises a first fork arm and a second fork arm, and the first fork arm and the second fork arm are hinged by taking a midpoint O of each other as a crossing point to form an X-shaped frame;
wherein one side of the X-shaped frame is a hinged side, and the other side is a sliding side; the upper end of the hinged side of the X-shaped frame and the upper cover form a hinged point D, and the lower end of the hinged side of the X-shaped frame and the base form a hinged point A; the upper end and the lower end of the sliding side of the X-shaped frame respectively slide on the upper cover and the base;
the method is characterized in that:
the push rod component comprises a motor, a screw rod, a nut, a first connecting rod and a second connecting rod; the motor drives the screw rod to rotate, so that the nut horizontally moves on the base along the screw rod;
the lower end of the first connecting rod is hinged with the nut, the upper end of the first connecting rod is hinged with the lower end of the second connecting rod, and the upper end of the second connecting rod is hinged on the first fork arm or the second fork arm;
the upper sides of the first connecting rod and the second connecting rod are provided with limiting mechanisms;
the upper end of the second link is located on the yoke between the midpoint O and the hinge point D.
2. The dual link electric scissor lifting mechanism of claim 1, wherein: the motor is mounted on the sliding side of the "X" shaped frame so that the motor output shaft is directed from the sliding side of the "X" shaped frame to the hinged side.
3. The dual link electric scissor lifting mechanism of claim 1, wherein: and the first connecting rod is provided with a roller which rolls on the upper surface of the base.
4. The dual link electric scissor lifting mechanism of claim 1, wherein: the limiting mechanism comprises a first inclined plane and a second inclined plane which are oppositely arranged; the first inclined plane is arranged at the upper end of the first connecting rod, and the second inclined plane is arranged at the lower end of the second connecting rod; when the first connecting rod and the second connecting rod are positioned at the initial positions, the included angle between the first inclined surface and the second inclined surface is
Wherein
The first inclined surface and the second inclined surface are overlapped when the first connecting rod and the second connecting rod are located at the extreme positions.
5. The dual link electric scissor lifting mechanism of claim 1, wherein: the first connecting rod is integrally a triangular rod, and the second connecting rod is integrally a triangular rod.
6. The dual link electric scissor lifting mechanism of claim 1, wherein: a speed reducer is arranged between the motor and the screw rod, and the speed reducer is a hole output speed reducer.
7. The dual link electric scissor lifting mechanism of claim 1, wherein: the upper end of the first connecting rod is provided with a groove, and the rear end of the second connecting rod enters the groove and is hinged with the first connecting rod.
8. The dual link electric scissor lifting mechanism of claim 1, wherein: the upper end and the lower end of the hinged side of the X-shaped frame are respectively provided with a hinged seat, and the hinged seats are respectively fixed on the upper surface of the base and the lower surface of the upper cover.
9. The dual link electric scissor lifting mechanism of claim 1, wherein: the upper end and the lower end of the sliding side of the X-shaped frame are respectively provided with a sliding block.
10. An AGV car which characterized in that: the double-connecting-rod electric scissor lifting mechanism comprises the double-connecting-rod electric scissor lifting mechanism of any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221760696.4U CN217676617U (en) | 2022-07-08 | 2022-07-08 | Double-connecting-rod electric scissor lifting mechanism and AGV |
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| CN202221760696.4U CN217676617U (en) | 2022-07-08 | 2022-07-08 | Double-connecting-rod electric scissor lifting mechanism and AGV |
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