Loading and unloading variable-amplitude mechanism, loading and unloading variable-amplitude control method and hoisting loading and unloading equipment

Abstract

The invention provides a loading and unloading variable-amplitude mechanism, a loading and unloading variable-amplitude control method and hoisting loading and unloading equipment, and relates to the technical field of hoisting loading and unloading equipment. The loading and unloading variable amplitude mechanism comprises a rotary platform, a rear variable amplitude self-locking oil cylinder, a rocker arm, a front variable amplitude self-locking oil cylinder and an arm frame, and the lower end of the rear variable amplitude self-locking oil cylinder, the lower end of the rocker arm and the lower end of the front variable amplitude self-locking oil cylinder are horizontally hinged to the rotary platform in the same direction. The upper end of the rear variable-amplitude self-locking oil cylinder and the upper end of the rocker arm are coaxially and horizontally hinged to the arm frame, and the upper end of the front variable-amplitude self-locking oil cylinder is also horizontally hinged to the arm frame. Based on the technical scheme, the loading and unloading variable amplitude mechanism can achieve large-amplitude hoisting operation along with a truck, can also achieve integral loading and integral unloading operation, and is high in integral loading and integral unloading operation speed and high in loading and unloading efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting and loading and unloading equipment, and in particular to a loading and unloading multi-luffing mechanism, a loading and unloading multi-luffing control method and lifting and unloading equipment. Background Art

[0002] Lifting and loading equipment is a type of lifting and transporting vehicle used to load and unload pallets for transportation. Various types of bulk materials or boxed materials can be loaded on the pallets. During the process of loading and unloading pallets by lifting and loading equipment, there is a high demand for boom posture control. Existing lifting and loading equipment usually uses a front luffing mechanism or a rear luffing mechanism. A single front luffing mechanism or a single rear luffing mechanism can easily limit the control range of the boom posture and cannot meet the boom posture control requirements under special environments and working conditions. Summary of the invention

[0003] In response to the above-mentioned problems in the prior art, the present application proposes a loading and unloading multi-luffing mechanism, a loading and unloading multi-luffing control method and a lifting and unloading equipment, which can realize the diversification of boom postures, thereby facilitating the whole loading and unloading operations.

[0004] One aspect of the present invention provides a loading and unloading multi-luffing mechanism, which includes a rotating platform, a rear luffing self-locking cylinder, a rocker arm, a front luffing self-locking cylinder and a boom, the lower end of the rear luffing self-locking cylinder, the lower end of the rocker arm and the lower end of the front luffing self-locking cylinder are all horizontally hinged to the rotating platform in the same direction, the upper end of the rear luffing self-locking cylinder and the upper end of the rocker arm are coaxially horizontally hinged to the boom, and the upper end of the front luffing self-locking cylinder is also horizontally hinged to the boom.

[0005] As a further improvement of the above technical solution:

[0006] The above-mentioned loading and unloading multi-angle mechanism, further, is provided with a first articulated seat, a second articulated seat and a third articulated seat on the rotating platform, the lower end of the rear amplitude-changing self-locking cylinder is horizontally articulated with the first articulated seat, the lower end of the rocker arm is horizontally articulated with the second articulated seat, and the lower end of the front amplitude-changing self-locking cylinder is horizontally articulated with the third articulated seat.

[0007] The above-mentioned loading and unloading multi-length adjustment mechanism, further, has a fourth articulated seat and a fifth articulated seat spaced apart along the length direction on the lower side of the arm, the upper end of the rear length adjustment self-locking cylinder and the upper end of the rocker arm are coaxially and horizontally hinged on the fourth articulated seat, and the upper end of the front length adjustment self-locking cylinder is horizontally hinged on the fifth articulated seat.

[0008] Another aspect of the present invention provides a loading and unloading multi-luffing control method, which is applied to the loading and unloading multi-luffing mechanism as described above, and the loading and unloading multi-luffing control method comprises:

[0009] Front luffing working mode: the rear luffing self-locking cylinder retracts and locks, and the front luffing self-locking cylinder retracts and controls the boom amplitude;

[0010] Rear luffing working mode: the front luffing self-locking cylinder retracts and locks, and the rear luffing self-locking cylinder retracts and controls the boom amplitude;

[0011] Compound luffing working mode: the front luffing self-locking cylinder and the rear luffing self-locking cylinder can be extended and retracted to coordinate and control the amplitude of the boom.

[0012] Another aspect of the present invention provides a lifting and loading and unloading device, which comprises a vehicle chassis and the loading and unloading multi-luffing mechanism as described above, wherein the revolving platform is mounted on the vehicle chassis.

[0013] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present invention can be achieved.

[0014] The loading and unloading multi-luffing mechanism, loading and unloading multi-luffing control method and lifting and unloading equipment provided by the present invention have at least the following beneficial effects compared with the prior art: the loading and unloading multi-luffing mechanism is provided with a rear luffing self-locking cylinder and a front luffing self-locking cylinder, so that a front luffing working mode, a rear luffing working mode and a compound luffing working mode can be realized, so that the boom posture is diversified by controlling different luffing mechanism working modes, and lifting operations with a large lifting range of the vehicle can be realized, and whole loading and unloading operations can be realized, and the whole loading and unloading operations are fast and the loading and unloading efficiency is high.

[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0017] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0018] Figure 1 The schematic diagram of the loading and unloading multi-luffing mechanism provided by the embodiment of the present invention when in a compound luffing working mode is shown;

[0019] Figure 2 The schematic diagram of the loading and unloading multi-luffing mechanism provided by the embodiment of the present invention when in the front-luffing working mode is shown;

[0020] Figure 3 The schematic diagram of the loading and unloading multi-luffing mechanism provided by the embodiment of the present invention when in the post-luffing working mode is shown;

[0021] Figure 4 The schematic diagram of the operation of the loading and unloading multi-luffing mechanism provided by the embodiment of the present invention in the front-luffing working mode is shown;

[0022] Figure 5 The schematic diagram of the operation of the loading and unloading multi-luffing mechanism provided by the embodiment of the present invention in the post-luffing working mode is shown;

[0023] Figure 6 The diagram shows the operation of the loading and unloading multi-luffing mechanism provided by an embodiment of the present invention in a compound luffing working mode.

[0024] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0025] Description of reference numerals:

[0026] 100- loading and unloading multi-luffing mechanism, 110- rotating platform, 120- rear luffing self-locking cylinder, 130- rocker arm, 140- front luffing self-locking cylinder, 150- boom, 200- vehicle chassis. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] The embodiment of the present invention provides a loading and unloading multi-boom mechanism 100, which can realize the diversification of boom postures, thereby facilitating the whole loading and unloading operations.

[0034] See also Figure 1 , Figure 2 as well as Figure 3 The loading and unloading multi-luffing mechanism 100 provided in an embodiment of the present invention comprises a rotating platform 110, a rear luffing self-locking cylinder 120, a rocker arm 130, a front luffing self-locking cylinder 140 and a boom 150. The lower ends of the rear luffing self-locking cylinder 120, the rocker arm 130 and the front luffing self-locking cylinder 140 are all horizontally hinged to the rotating platform 110 in the same direction, the upper ends of the rear luffing self-locking cylinder 120 and the rocker arm 130 are coaxially horizontally hinged to the boom 150, and the upper end of the front luffing self-locking cylinder 140 is also horizontally hinged to the boom 150.

[0035] The loading and unloading multi-luffing mechanism 100 provided in the embodiment of the present invention is provided with a rear-luffing self-locking cylinder 120 and a front-luffing self-locking cylinder 140, so that a front-luffing working mode, a rear-luffing working mode and a compound-luffing working mode can be realized, thereby controlling different luffing mechanism working modes to make the posture of the boom 150 diversified, realizing a large-range lifting operation of the vehicle, and realizing whole-load and unloading operations, with a fast speed and high loading and unloading efficiency.

[0036] A self-locking cylinder is a specific type of hydraulic cylinder that is designed to lock automatically when closed, preventing the piston from moving without pressure. This type of cylinder is often used in situations where the load needs to be kept fixed, such as when lifting heavy objects in a robotic arm or industrial equipment, to ensure safety and stability.

[0037] In this embodiment, the slewing platform 110 is provided with a first articulated seat, a second articulated seat and a third articulated seat, the lower end of the rear luffing self-locking oil cylinder 120 is horizontally articulated with the first articulated seat, the lower end of the rocker arm 130 is horizontally articulated with the second articulated seat, and the lower end of the front luffing self-locking oil cylinder 140 is horizontally articulated with the third articulated seat. The lower side of the arm 150 is provided with a fourth articulated seat and a fifth articulated seat at intervals along the length direction, the upper end of the rear luffing self-locking oil cylinder 120 and the upper end of the rocker arm 130 are horizontally articulated on the fourth articulated seat using the same articulated shaft, and the upper end of the front luffing self-locking oil cylinder 140 is horizontally articulated on the fifth articulated seat.

[0038] The lower end of the rear boom self-locking cylinder 120 is parallel and horizontal to the rotation direction of the slewing platform 110, the lower end of the rocker arm 130 is parallel to the rotation direction of the slewing platform 110, the lower end of the front boom self-locking cylinder 140 is parallel to the rotation direction of the slewing platform 110, the upper end of the rear boom self-locking cylinder 120 is parallel to the rotation direction of the boom 150, the upper end of the rocker arm 130 is parallel to the rotation direction of the boom 150, and the upper end of the front boom self-locking cylinder 140 is parallel to the rotation direction of the boom 150.

[0039] The embodiment of the present invention further provides a loading and unloading multi-luffing control method, which is applied to the loading and unloading multi-luffing mechanism 100 provided in any of the above embodiments. The loading and unloading multi-luffing control method includes:

[0040] Front luffing working mode: the rear luffing self-locking cylinder 120 retracts and locks, and the front luffing self-locking cylinder 140 telescopes to control the amplitude of the boom 150 .

[0041] The rear luffing self-locking cylinder 120 is retracted to the shortest state and locked, and the front luffing self-locking cylinder 140 is used to luff the boom 150. The boom 150 and its telescopic mechanism are the same as those of a traditional straight-arm truck crane. The telescopic mechanism of the boom 150 realizes the telescopic movement of the boom 150. The principle diagram of the luffing mechanism is shown in FIG. Figure 2This working mode is equivalent to the traditional straight-arm truck crane. The working mode and operation method are similar to the straight-arm truck crane, and it is safe, reliable, convenient and easy to operate. The operation diagram of the front-luffing working mode is as follows Figure 4 This front luffing working mode can realize truck crane operation.

[0042] Rear luffing working mode: the front luffing self-locking cylinder 140 retracts and locks, and the rear luffing self-locking cylinder 120 telescopes to control the amplitude of the boom 150 .

[0043] The front luffing self-locking cylinder 140 is retracted to the shortest state and locked, and the rear luffing self-locking cylinder 120 is used to luff the boom 150. The boom 150 and its telescopic mechanism are the same as those of a traditional straight-arm truck crane. The telescopic mechanism of the boom 150 realizes the telescopic movement of the boom 150. The principle diagram of the luffing mechanism is shown in FIG. Figure 3 This working mode can achieve a larger operating range than the front luffing working mode, and can achieve large-scale lifting operations. The operating diagram of the rear luffing working mode is shown in Figure 5 This rear-luffing working mode can realize truck-mounted crane operation.

[0044] Compound luffing working mode: the front luffing self-locking oil cylinder 140 and the rear luffing self-locking oil cylinder 120 can be telescopically coordinated to control the amplitude of the boom 150 .

[0045] The front luffing self-locking cylinder 140 and the rear luffing self-locking cylinder 120 are used to perform the luffing of the truck crane. The boom 150 and its telescopic mechanism are the same as those of the traditional straight-arm truck crane. The telescopic mechanism of the boom 150 realizes the telescopic movement of the boom 150. The principle diagram of the luffing mechanism is shown in FIG. Figure 1 As shown. This working mode is the most complex working mode for the operation and control of the boom mechanism. The front boom self-locking cylinder 140 and the rear boom self-locking cylinder 120 can both be telescopic. Therefore, it is difficult to control the posture of the boom 150. The operator needs to concentrate highly to avoid abnormal situations such as collisions caused by errors in the posture control of the boom 150. In addition, since the front boom self-locking cylinder 140 and the rear boom self-locking cylinder 120 can both be telescopic in this working mode, more amplitude control of the boom 150 can be achieved, thereby meeting the posture control needs of the boom 150 for loading and unloading operations other than vehicle-mounted lifting operations, and realizing the loading and unloading of pallets. The operating schematic diagram of the compound boom working mode is shown in the figure. Figure 6 This compound luffing working mode can realize truck crane operation and complete loading and unloading operation.

[0046] The present invention also provides a lifting and loading equipment. Figure 4 , Figure 5 as well as Figure 6The lifting and loading equipment comprises a vehicle chassis 200 and a loading and unloading multi-luffing mechanism 100 as provided in any of the above embodiments, and a rotary platform 110 is installed on the vehicle chassis 200. The specific structure of the loading and unloading multi-luffing mechanism 100 refers to the above embodiments. Since the lifting and loading equipment adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. A loading and unloading multi-luffing mechanism, characterized in that: The loading and unloading multi-luffing mechanism includes a rotating platform, a rear luffing self-locking cylinder, a rocker arm, a front luffing self-locking cylinder and a boom. The lower end of the rear luffing self-locking cylinder, the lower end of the rocker arm and the lower end of the front luffing self-locking cylinder are all horizontally hinged to the rotating platform in the same direction, the upper end of the rear luffing self-locking cylinder and the upper end of the rocker arm are coaxially horizontally hinged to the boom, and the upper end of the front luffing self-locking cylinder is also horizontally hinged to the boom.

2. The loading and unloading multi-luffing mechanism according to claim 1, characterized in that: The rotating platform is provided with a first articulated seat, a second articulated seat and a third articulated seat, the lower end of the rear luffing self-locking cylinder is horizontally articulated with the first articulated seat, the lower end of the rocker arm is horizontally articulated with the second articulated seat, and the lower end of the front luffing self-locking cylinder is horizontally articulated with the third articulated seat.

3. The loading and unloading multi-luffing mechanism according to claim 2, characterized in that: A fourth articulated seat and a fifth articulated seat are provided at intervals along the length direction on the lower side of the arm, the upper end of the rear boom self-locking cylinder and the upper end of the rocker arm are coaxially and horizontally hinged on the fourth articulated seat, and the upper end of the front boom self-locking cylinder is horizontally hinged on the fifth articulated seat.

4. A loading and unloading multi-luffing control method, applied to the loading and unloading multi-luffing mechanism as described in any one of claims 1 to 3 above, characterized in that: The loading and unloading multi-variable amplitude control method comprises: Front luffing working mode: the rear luffing self-locking cylinder retracts and locks, and the front luffing self-locking cylinder retracts and controls the boom amplitude; Rear luffing working mode: the front luffing self-locking cylinder retracts and locks, and the rear luffing self-locking cylinder retracts and controls the boom amplitude; Compound luffing working mode: the front luffing self-locking cylinder and the rear luffing self-locking cylinder can be extended and retracted to coordinate and control the amplitude of the boom.

5. A lifting and loading equipment, characterized in that: The lifting and loading and unloading equipment comprises a vehicle chassis and a loading and unloading multi-luffing mechanism as described in any one of claims 1 to 3, and the revolving platform is installed on the vehicle chassis.

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