A shuttle vehicle lifting device

Abstract

The utility model relates to the technical field of shuttle car, disclose a kind of shuttle car lifting device, including the scissor support of symmetrical distribution in the belt conveyor both sides, each the scissor support includes the first support rod and second support rod connected in middle part hinged, the lower end of the first support rod is hinged with the vehicle body, and upper end is connected with the belt conveyor along horizontal direction sliding, correspondingly, the upper end of the second support rod is hinged with the belt conveyor, and lower end is connected with the vehicle body along horizontal direction sliding;Two the scissor support between still being equipped with first linkage rod and second linkage rod, the first linkage rod corresponding with the upper end of two first support rod is connected, and the second linkage rod corresponding with the lower end of two second support rod is connected;Vehicle body is also equipped with the jacking mechanism for driving the belt conveyor relative to vehicle body lifting.Solve the problem of the lifting action of the belt conveyor of shuttle car in the prior art is not stable.

Description

Technical Field

[0001] This utility model relates to the field of shuttle vehicle technology, and in particular to a shuttle vehicle lifting device. Background Technology

[0002] In the operation of the automatic unpacking machine on a tobacco processing line, the shuttle car consists of a shuttle track, a car body, and a belt conveyor. The belt conveyor is used for transporting the cigarette packs, and the process of separating the cigarette packs from the packaging cartons is completed on the shuttle car. During the carton grabbing and detachment process, the entire cigarette pack needs to be grabbed and lifted to a height of approximately 400mm, and then the 200kg cigarette pack falls onto the shuttle car's conveyor belt. Therefore, a liftable shuttle car is needed to reduce the impact of the cigarette packs falling directly onto the shuttle car.

[0003] The prior art provides a shuttle car whose belt conveyor lifting action is driven by four cylinders located at the four corners of the shuttle car belt conveyor. However, due to fluctuations in air pressure, the compressibility of gas, and uneven force distribution at the drive points, the synchronization of the four cylinders is poor, resulting in unstable lifting action. Consequently, cylinder damage and frame deformation may occur due to the unbalanced force distribution, seriously affecting the continuity of production. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a shuttle car lifting device to solve the problem of unstable lifting action of the shuttle car belt conveyor in the prior art.

[0005] This utility model solves the above-mentioned technical problems through the following technical means: a shuttle car lifting device, which is set between the car body and the belt conveyor, includes scissor brackets symmetrically distributed on both sides of the belt conveyor. Each scissor bracket includes a first support rod and a second support rod hinged together in the middle. The lower end of the first support rod is hinged to the car body and the upper end is slidably connected to the belt conveyor in the horizontal direction. The upper end of the second support rod is hinged to the belt conveyor and the lower end is slidably connected to the car body in the horizontal direction.

[0006] A first linkage rod and a second linkage rod are also provided between the two scissor lift brackets. The first linkage rod connects the upper ends of the two first support rods, and the second linkage rod connects the lower ends of the two second support rods.

[0007] The vehicle body is also equipped with a lifting mechanism for driving the belt conveyor to rise and fall relative to the vehicle body.

[0008] Optionally, a spring damping rod is also provided between the vehicle body and the belt conveyor. The two ends of the spring damping rod are respectively connected to the vehicle body and the belt conveyor, and are symmetrically distributed on the outer sides of both ends of the scissor lift bracket.

[0009] Optionally, the spring damping rod includes a sleeve, a spring, and a vertical rod that matches the sleeve. The spring is sleeved on the vertical rod, the vertical rod is slidably inserted into the sleeve, and the spring is pre-compressed to provide elastic force.

[0010] Optionally, both the vehicle body and the belt conveyor are fixedly equipped with bearing seats for hinged connection of the lower end of the first support rod and the upper end of the second support rod, respectively.

[0011] Optionally, both ends of the first and second linkage rods are provided with rollers, and the vehicle body and the belt conveyor are respectively provided with grooved guide rails at the upper end of the first support rod and the lower end of the second support rod to limit the movement distance of the rollers, and baffles are provided at both ends of the grooved guide rails.

[0012] Optionally, the lifting mechanism includes a motor, a drive sprocket, and a rigid chain connected in sequence, with one end of the rigid chain extending vertically upward and connected to the bottom of the belt conveyor.

[0013] The beneficial effects of this utility model are:

[0014] This invention utilizes symmetrically distributed scissor lift supports on both sides of a belt conveyor. One end of each support rod is fixed, while the other slides relative to the support. Combined with a spring damping rod, this design automatically compensates for uneven force distribution on the belt conveyor. This ensures that all four corners of the conveyor remain on the same horizontal plane regardless of their lifting or lowering position, improving the stability of the shuttle's lifting and lowering movements and reducing frequent equipment failures caused by uneven force distribution. Furthermore, the scissor lift supports, in conjunction with the damping rod, provide a degree of cushioning when impacted by cigarette packs, preventing damage caused by excessive force on a single support point. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 yes Figure 2 Sectional view of AA;

[0018] Figure 4 yes Figure 1 A magnified view of a portion of point M in the middle.

[0019] Among them, 1-car body;

[0020] 21-Scissor lift bracket, 211-First support rod, 212-Second support rod, 22-First linkage rod, 23-Second linkage rod, 24-Spring damping rod, 241-Sleeve, 242-Spring, 243-Vertical rod, 25-Bearing seat, 261-Roller, 262-Groove guide rail;

[0021] 3-Belt conveyor. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures. They should not be construed as limiting the utility model. To better illustrate the embodiments of this utility model, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the figures for those skilled in the art.

[0023] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above-mentioned terms can be understood according to the specific circumstances.

[0024] like Figures 1-4 As shown, a shuttle lifting device of this utility model is set between the vehicle body 1 and the belt conveyor 3. The lifting device includes scissor brackets 21 symmetrically distributed on both sides of the belt conveyor 3. Each scissor bracket 21 includes a first support rod 211 and a second support rod 212 hinged together in the middle. The lower end of the first support rod 211 is hinged to the vehicle body 1, and the upper end is slidably connected to the belt conveyor 3 in the horizontal direction. Correspondingly, the upper end of the second support rod 212 is hinged to the belt conveyor 3, and the lower end is slidably connected to the vehicle body 1 in the horizontal direction. For example, the hinge can be connected by bearing seats, pins, etc., so that the first support rod 211 and the second support rod 212 can pivot around the hinge axis.

[0025] In this embodiment, a first linkage rod 22 and a second linkage rod 23 are also provided between the two scissor lift brackets 21. The first linkage rod 22 connects the upper ends of the two first support rods 211, and the second linkage rod 23 connects the lower ends of the two second support rods 212. For example, bearing seats 25 are fixedly provided on the vehicle body 1 and the belt conveyor 3 respectively, corresponding to the lower ends of the first support rods 211 and the upper ends of the second support rods 212. The lower ends of the first support rods 211 and the upper ends of the second support rods 212 are respectively hinged to the vehicle body 1 and the belt conveyor 3 through the bearing seats 25.

[0026] In this embodiment, both ends of the first linkage 22 and the second linkage 23 are provided with rollers 261. The vehicle body 1 and the belt conveyor 3 are respectively provided with grooved guide rails 262 at the upper end of the first support rod 211 and the lower end of the second support rod 212 to limit the movement distance of the rollers 261. The two ends of the grooved guide rails 262 are provided with baffles to limit the maximum distance the rollers 261 can move along the grooved guide rails 262, which in effect limits the height of the scissor lift bracket 21. When the support rod pivots, the upper end of the support rod remains at the same height with reference to the axis of the bearing seat 25 at the upper end and the axis of the rollers 261.

[0027] In this embodiment, spring damping rods 24 are symmetrically distributed at both ends of the scissor lift bracket 21 between the vehicle body 1 and the belt conveyor 3. The two ends of the spring damping rods 24 are connected to the vehicle body 1 and the belt conveyor 3, respectively. For example, the spring damping rod 24 includes a sleeve 241, a spring 242, and a vertical rod 243 that matches the sleeve 241. The spring 242 is sleeved on the vertical rod 243, and the vertical rod 243 is slidably inserted into the sleeve 241. The spring 242 is pre-compressed to provide elastic force, and the length of the spring 242 being compressed is greater than the height change value of the scissor lift bracket 21. In fact, to achieve a better buffering effect, the spring should still provide elastic force when the spring damping rod 24 is fully extended. The vertical rod 243 has a frustum that limits the spring 242. The top of the sleeve 241 is connected to the bottom frame of the belt conveyor 3, and the bottom of the vertical rod 243 is connected to the vehicle body 1.

[0028] In this embodiment, the direction of movement of the vehicle body 1 is perpendicular to the material conveying direction of the belt conveyor 3. A lifting mechanism for lifting the belt conveyor 3 is also provided in the middle of the vehicle body 1. For example, the lifting mechanism includes a motor, a drive sprocket, and a rigid chain connected in sequence. One end of the rigid chain is wound around the drive sprocket, and the other end extends vertically upward and is connected to the bottom of the belt conveyor 3. The output end of the motor drives the drive sprocket, which in turn drives the rigid chain to reciprocate up and down, thereby lifting and lowering the belt conveyor 3. In practice, the lifting mechanism can also use existing hydraulic cylinders, electric cylinders, etc., to achieve the lifting and lowering of the belt conveyor 3.

[0029] The working principle of this utility model is as follows:

[0030] The lifting device of this utility model is driven by a motor to lift and lower, and the speed is adjustable. During the lifting and lowering process, the ends of each support rod of the scissor bracket 21 always remain horizontal during the movement, realizing the stable and balanced vertical displacement of the belt conveyor 3. This facilitates the material transfer of cigarette packs between two workstations with a vertical drop. At the same time, it can also avoid the impact and dust caused by the cigarette packs slipping after being lifted by the robot when opening the box due to the bottom flap of the carton.

[0031] During this process, the lifting mechanism in the middle of the vehicle body drives the height of the scissor bracket 21 to change, and the roller 261 at the end of the linkage rod moves horizontally in the grooved guide rail 262, so that the four corners of the belt conveyor 3 always remain on the same horizontal plane in any state of lifting and lowering; among them, the spring damping rod 24 also works with the structural design of the scissor bracket 21 to automatically compensate and buffer the uneven force on the belt conveyor 3.

[0032] In addition, the scissor lift bracket 21, together with the spring damping rod 24, can also provide a certain degree of dispersion and buffering when subjected to the impact of the tobacco pack, so as to avoid equipment damage caused by excessive force on a single support point (uneven force) of the belt conveyor 3.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A shuttle car lifting device, disposed between the car body (1) and the belt conveyor (3), characterized in that, The scissor lift brackets (21) are symmetrically distributed on both sides of the belt conveyor (3). Each scissor lift bracket (21) includes a first support rod (211) and a second support rod (212) that are hinged together in the middle. The lower end of the first support rod (211) is hinged to the vehicle body (1) and the upper end is slidably connected to the belt conveyor (3) in the horizontal direction. The upper end of the second support rod (212) is hinged to the belt conveyor (3) and the lower end is slidably connected to the vehicle body (1) in the horizontal direction. A first linkage rod (22) and a second linkage rod (23) are provided between the two scissor brackets (21). The first linkage rod (22) connects the upper ends of the two first support rods (211) respectively, and the second linkage rod (23) connects the lower ends of the two second support rods (212) respectively. The vehicle body (1) is also provided with a lifting mechanism for driving the belt conveyor (3) to rise and fall relative to the vehicle body (1).

2. The shuttle car lifting device according to claim 1, characterized in that: A spring damping rod (24) is also provided between the vehicle body (1) and the belt conveyor (3). The two ends of the spring damping rod (24) are connected to the vehicle body (1) and the belt conveyor (3) respectively, and are symmetrically distributed on the outer sides of both ends of the scissor bracket (21).

3. The shuttle car lifting device according to claim 2, characterized in that: The spring damping rod (24) includes a sleeve (241), a spring (242), and a vertical rod (243) that matches the sleeve (241). The spring (242) is sleeved on the vertical rod (243), the vertical rod (243) is slidably inserted into the sleeve (241), and the spring (242) is pre-compressed to provide elastic force.

4. The shuttle car lifting device according to claim 1, characterized in that: Both the vehicle body (1) and the belt conveyor (3) are fixedly provided with bearing seats (25) for hinged to the lower end of the first support rod (211) and the upper end of the second support rod (212), respectively.

5. The shuttle car lifting device according to claim 1, characterized in that: Both ends of the first linkage rod (22) and the second linkage rod (23) are provided with rollers (261). The vehicle body (1) and the belt conveyor (3) are respectively provided with grooved guide rails (262) at the upper end of the first support rod (211) and the lower end of the second support rod (212). Both ends of the grooved guide rails (262) are provided with baffles.

6. The shuttle car lifting device according to any one of claims 1-5, characterized in that: The lifting mechanism includes a motor, a drive sprocket and a rigid chain connected in sequence. One end of the rigid chain extends vertically upward and is connected to the bottom of the belt conveyor (3).

Images