CN210457347U - Ardisia japonica - Google Patents

Abstract

The utility model discloses a ground cattle for carrying, which is provided with a chassis, fork teeth and wheels arranged on the chassis; the chassis comprises a front chassis half section and a rear chassis half section, and the rear chassis half section is hinged to the front chassis half section; the chassis further comprising a linkage mechanism connected to the tine, the linkage mechanism configured to adjust the height of the tine; according to the ground cattle for carrying, each wheel is fully contacted with the ground through the adjustment of the posture of the chassis; meanwhile, electricity can be used as power, and the risk of oil leakage caused by hydraulic jacking is avoided.

Description

Ardisia japonica

Technical Field

The utility model relates to a transport means field especially relates to a ground ox.

Background

In warehousing systems and logistics transportation, ground cattle (also called as pallet trucks, forklifts and carrying vehicles) are in an important position as a transportation device. The ground cattle is a wheel type carrying vehicle for loading, unloading, stacking and short-distance transportation of goods. Usually controlled manually by a person or driven using an oil-fired motor or battery. If the intelligent ground cattle is convenient to operate and control like an AGV, a double-wheel differential driving structure is the best choice, but for the equipment with the slender rectangular structure like the ground cattle, a driving wheel needs to be arranged in the middle of two fork teeth in a double-wheel differential mode, in addition, in order to meet the requirements of stability and unbalance loading of a vehicle body, two driven wheels are arranged on two sides of a vehicle head, and one driven wheel is arranged at the most tail part of the two fork teeth of a chassis respectively. Therefore, a set of stable double-differential chassis structure of the ground buffalo can have up to 6 points contacting the ground, and the driving wheel positioned in the middle is suspended due to a pit on the road surface, so that the ground buffalo loses the grip force, the climbing capacity is almost zero, and the chassis structure cannot adapt to the scene that the ground buffalo needs to pass through an elevator and the road surface condition is slightly complex; the widely existing problem cannot be thoroughly solved by using the spring damping wheel, and even the frequent 'nodding' phenomenon of the ox during acceleration and deceleration due to overlarge load of the ox can be caused.

Some ground cattle are contacted and supported with ground through three wheels to through the mode of hydraulic pressure jacking, drive the connecting rod by hydraulic system, carry out the lifting, because hydraulic system output power is very big characteristic, the manual formula ground cattle that the size is less on the market also can easily jack up the heavy object of several tons. The structure is simpler and the cost is lower. However, due to the driving structure of the steering wheel, the original rotation diameter can reach about twice the vehicle length, the steering wheel is not suitable for being applied to AGV application scenes which need intensive storage and flexible movement and steering, and the steering wheel is located at the central axis position of the vehicle body. The application scene of the AGV is mostly a modern factory or an internet retail warehouse, and the potential risk that oil leakage may occur during hydraulic jacking has to be considered, so that the practical problem in the application scene of the AGV cannot be solved through the structural form and the jacking form of the conventional cattle.

Fig. 1 shows a structural view of a general cow, and fig. 2 shows an exploded view thereof. As shown in fig. 1 and 2, the ground bull adopts a steering wheel structure, which is more suitable for manual towing operation, the chassis has two groups of driven wheels and one group of driving wheels, each group of wheels is respectively connected by a connecting rod or a through shaft, and the chassis can be understood to be in three-point contact with the ground. The common cattle chassis is connected with the jacking structure by a connecting rod. When the structure is jacked, the hydraulic cylinder 5 is jacked up step by pressing the handle 6 downwards by an operator, the rocker arm 7 and the connecting rod 2 are driven to move upwards, and finally the fork teeth 1 are driven to move upwards to jack up goods.

The statements in the background section are merely technical equivalents which may be known to a person skilled in the art and do not, of course, represent prior art in this field.

SUMMERY OF THE UTILITY MODEL

Aiming at one or more defects in the prior art, the utility model provides a ground cattle, which comprises a chassis; a plurality of wheels disposed on the chassis; tines mounted on the chassis, wherein the chassis includes a chassis front half and a chassis rear half, the chassis rear half being hinged to the chassis front half.

According to an aspect of the utility model, the chassis is still including setting up elastic component between half section and the chassis back half section before the chassis, with the chucking half section and the chassis back half section before the chassis.

According to an aspect of the utility model, the wheel includes the action wheel and follows the driving wheel, the action wheel is located the prong middle part, follow the driving wheel including being located on the latter half of chassis from the driving wheel and on the former half of chassis.

According to an aspect of the present invention, the ground buller further comprises a jacking link mechanism provided on the chassis, the jacking link mechanism being connected to the tines and configured to adjust the height of the tines.

According to the utility model discloses an aspect, the ox still is in including setting up motor, speed reducer and ball on the chassis, the motor passes through the speed reducer drive ball, and then the drive jacking link mechanism adjusts the height of prong.

According to the utility model discloses an aspect, jacking link mechanism includes first jacking connecting rod and second jacking connecting rod, wherein first jacking connecting rod is installed on the first section of chassis, the second jacking connecting rod is installed on the second section of chassis.

According to an aspect of the utility model, the ground cattle still includes slider slide rail mechanism, slider slide rail mechanism installs jacking link mechanism with between the prong to it can absorb to configure to the horizontal direction's of jacking link mechanism motion component.

According to an aspect of the present invention, the slider slide rail mechanism includes a slider and a slide rail, wherein the slide rail is fixed to the tines, the slider being fixed to the upper end of the jacking link mechanism.

According to one aspect of the invention, the tine includes a tine rear support that supports the tine in a horizontal direction behind the tine.

According to an aspect of the utility model, the chassis is still including setting up locating part on the first half section of chassis or the latter half section of chassis, in order to restrict relative rotation angle range between the first half section of chassis and the latter half section of chassis.

According to the utility model discloses ground ox can adapt to comparatively complicated road surface situation (has more outstanding than using spring shock-absorbing structure, need not the road surface adaptability of pretension), reduces as far as because of the skidding that action wheel and the inadequate contact of ground caused to can do the power supply with the motor, provide one kind and carry out the solution that a ground ox chassis-jacking structure that the load lifted with the mode of connecting rod jacking.

Drawings

The accompanying drawings, which form a part hereof, 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 without undue limitation. In the drawings:

FIG. 1 shows a block diagram of a crustacean;

FIG. 2 shows an exploded view of the pig of FIG. 1;

fig. 3 shows a schematic structural view of a jacking-chassis of a ground craft according to an embodiment of the present invention;

fig. 4 shows a schematic structural view of a chassis of a ground craft according to an embodiment of the present invention;

fig. 5 shows a schematic view of the connection of the chassis of the ground cattle to the fork tines according to an embodiment of the invention;

fig. 6 shows a schematic diagram of a slider-slide mechanism according to an embodiment of the present invention;

fig. 7 shows a schematic diagram of a jacking manner of the ground cattle chassis structure according to an embodiment of the present invention;

figure 8 illustrates the connection of the rear support of the tine to the tine according to one embodiment of the invention; and

figure 9 shows an enlarged view of the tine rear support.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection, either mechanically, electrically, or in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Fig. 3-6 show a schematic structural diagram of a crustacean 100 according to an embodiment of the present invention. Wherein the structure of the handlebars etc. is omitted for the sake of clarity. As described in detail below with reference to fig. 1-4.

As shown in fig. 3, the ground beetle 100 comprises a chassis 8, a plurality of wheels (11, 13, etc.), tines 9. Wherein the chassis 8 for example forms the base of the bulls 100 for mounting thereon the other mechanical and/or electrical components of the bulls 100, on which chassis a plurality of wheels are arranged. Tines 9 are also mounted on the chassis 9 for forking a rack or bin thereon. Wherein the chassis 8 comprises a front chassis half 14 and a rear chassis half 15, as shown in fig. 4, which are hingedly connected to each other at a hinge point 18 (as shown in fig. 4 and 7) so as to be relatively pivotable within a certain range.

The utility model discloses in, because chassis 8 includes first section 14 of chassis and second section 15 of chassis, articulated and pivot relatively between the two to when uneven ground, can guarantee that the wheel on the first section 14 of chassis and the wheel on the second section 15 of chassis can all contact ground, and play good supporting role to the goods shelves that bear on ox 100 and prong 19, improve ox 100's stability. In addition, the present invention is not limited to the length and relative ratio of the front section 14 and the rear section 15 of the chassis. The front half section 14 of the chassis shown in fig. 4 is longer than the rear half section 15 of the chassis, and the sizes of the two sections can be set approximately the same, or the front half section 14 of the chassis is shorter than the rear half section 15 of the chassis, which are all within the protection scope of the present invention.

The chassis main body 8 is preferably bilaterally symmetrical, and the chassis 8 is connected with the fork teeth 9 through the jacking connecting rod mechanism 10 to form a jacking-chassis structure integrating jacking and chassis. As described in detail later.

The tines 9 are shown in fig. 5 as comprising two parallel support plates, but it will be readily understood by those skilled in the art that the tines 9 may comprise a single support plate, or a greater number of support plates. The fork tines 9 are used for extending into the bottom of the material box or the goods shelf, lifting the material box or the goods shelf by jacking operation, and carrying operation.

According to a preferred embodiment of the present invention, the chassis 8 further comprises an elastic member (not shown), such as a coil spring, disposed between the front chassis half 14 and the rear chassis half 15 for clamping or pre-tensioning the front chassis half 14 and the rear chassis half 15, so that the front chassis half 14 and the rear chassis half 15 are kept flat when driving on a normal flat ground; only when the ground is uneven, the elastic piece is pressed enough, the front half section 14 and the rear half section 15 of the chassis can rotate relatively, so that the wheels are grounded as much as possible, and the stability of the ground cattle on the ground is improved. In addition, the chassis 8 may further include a limiting member disposed on the front chassis half 14 and/or the rear chassis half 15 to limit the relative rotation angle range between the front chassis half 14 and the rear chassis half 15, for example, to limit the relative rotation angle between the front chassis half and the rear chassis half not to exceed 5 degrees, or not to exceed 10 degrees.

As shown in fig. 3, the plurality of wheels includes a front driven wheel assembly 11 and a driving wheel assembly 13. Wherein the front driven wheel assembly 11 is mounted on the front chassis half 14 of the chassis 8, as shown in figure 3, at the other end of the chassis 8 from the rear chassis part 12, and the driving wheel assembly 13 is mounted on the chassis 8, in the middle of the tines 9, for example also on the front chassis half 14. According to a preferred embodiment, the bulls 100 further comprises a motor for driving the driving wheel assembly 13, so that the bulls 100 can perform various movement operations such as forward, backward, turning, pivot rotation and the like on the ground. In addition, the plurality of wheels further includes a driven wheel assembly (not shown) mounted within the rear chassis half 15, in combination with the front driven wheel assembly 11 on the front chassis half 14, and the driving wheel assembly 13, so that the chassis 8 can simultaneously contact the ground at multiple points. The driving wheel assembly 13 is positioned right below the middle part of the fork teeth 9, when the cargo is loaded, most of the weight of the cargo acts on the driving wheel assembly 13, and the ground holding force of the ground cattle in use is enhanced.

The utility model discloses in, first section 14 on chassis and second section 15 on chassis can rotate round pin joint 18, through the attitude adjustment on chassis, contact ground that each wheel can be abundant. An elastic part can be arranged between the front half-section 14 of the chassis and the rear half-section 15 of the chassis to clamp the front half-section 14 of the chassis and the rear half-section 15 of the chassis; and/or limiting parts are arranged on the front half-section 14 and the rear half-section 15 of the chassis to limit the relative rotation angle range of the front half-section 14 and the rear half-section 15 of the chassis. Through but not limited to elastic component or locating part, the chassis can be in the scope that the ground clearance allowed, the adjustment gesture, and then has satisfied under the condition of not having the pretension to the unsmooth adaptability in ground.

According to a preferred embodiment of the present invention, the ground beetle 100 further comprises a jacking link mechanism 10 disposed on the chassis 8, wherein a bottom portion of the jacking link mechanism 10 is disposed on the chassis 8, and an upper portion of the jacking link mechanism 10 is connected to the fork tines 9, so that a height of the fork tines 9 can be adjusted. For example, the ground buller 100 further comprises a motor 23 and a speed reducer, a ball screw 22, which are arranged on the chassis 8, wherein the motor 23 drives the ball screw 22 through the speed reducer, and further drives the link mechanism, and the height of the fork teeth 9 is adjusted. In addition, the ball screw 22 can amplify the torque of the jacking motor, which is beneficial to loading heavy objects on the ground cattle.

In order to enable smooth adjustment of the height of the tines 9 and support of the weight on the tines 9, according to a preferred embodiment of the invention, the jacking linkage 10 preferably comprises a first jacking link 16 and a second jacking link 17. As shown in fig. 4, one end of the first jacking connecting rod 16 is arranged on the front half section 14 of the chassis, and the other end is connected to the fork teeth 9; a second jacking link 17 is provided at one end on the rear half 15 of the chassis and at the other end is connected to the tines 9. Thereby distributing the weight of the load to the front 14 and rear 15 chassis halves and ensuring that as many wheels land as possible.

Both the first and second jacking links 16, 17 can be driven by a motor 23, a reducer, a ball screw 22 and thus pivoted about one of their ends (about their lower ends in fig. 4) to adjust the height of the tine 9 to which their other ends are connected. And will not be described in detail herein.

Through first jacking connecting rod and second jacking connecting rod in this embodiment, combine half section 14 before the chassis and half section 15 after the chassis can rotate around pin joint 18, when carrying goods, the goods centre of gravity position does not surpass second jacking connecting rod 17, consequently the circumstances that the nod or goods topple in the traveling can not appear.

In addition, according to a preferred embodiment of the present invention, the ground beetle 100 further includes a slider rail mechanism 19, as shown in fig. 5, connected between the fork tines 9 and the jacking link mechanism 10. As shown in fig. 6, the slider-slide mechanism 19 includes a slider 191 and a slide 192, wherein the slide 192 is fixed to the fork tines 9, and the slider 191 is fixed to the upper end of the lift-up link mechanism 10, for example, connected to the upper ends of the first lift-up link 16 and the second lift-up link 17. The slider 191 is slidable along the slide rail 192, and thus can split the movement of the first and second lift-up links 16 and 17 into horizontal and vertical movement components. Fig. 5 shows a schematic view of the connection of the chassis of the ground cattle and the fork tines according to an embodiment of the invention. As shown in fig. 5, the linkage 16 is connected to the tines 9 by a slider-slide mechanism 19, wherein the tines 9 are connected to the slide by screws and the linkage 16 is connected to the slide by screws. While it has been described above that the slide rails 192 are secured to the tines 9 and the sliders 191 are secured to the lift linkages 10, it will be readily understood by those skilled in the art that the reverse arrangement is possible, i.e., the slide rails 192 are secured to the lift linkages 10 and the sliders 191 are secured to the tines 9, and is within the scope of the present disclosure.

The operation of the slider-slide mechanism 19 will be briefly described below. When the motor 23 drives the first lifting link 16 and the second lifting link 17 to pivot upwards through the speed reducer and the ball screw 22, the upward pivoting motion comprises a horizontal motion component and a vertical motion component. Since the slider 191 connected to the jacking link is able to slide within the slide rail 192, the horizontal component of the jacking link is "absorbed", thus allowing the tines 9 to be height adjusted only in the vertical direction, and not to move horizontally due to the pivoting of the jacking link.

According to a preferred embodiment of the invention, the tines 9 comprise tine rear supports 20, which are mounted on the chassis 8, supporting the tines 9 in a horizontal direction. Figures 8 and 9 show a preferred embodiment of the tine rear support 20. For example, the tine rear support 20 is a set of bearings mounted on the rear end of the tine 9 which, when the tine is moving, will transfer the horizontal forces to the chassis through the contact of the deep groove ball bearings and will move up and down with the tine. The supporting behind the fork tines is only the structure that the fork tines contact with the chassis and transmit horizontal force. As mentioned above, tines 9 do not move in a horizontal direction due to slider track structure 19, but those skilled in the art will appreciate that tines 9 are still subjected to forces in a horizontal direction. The tine rear support 20 is able to withstand the horizontal forces and is released onto the chassis.

The connection mode is as shown in the figure, the fork teeth are connected with the sliding rail through countersunk screws, the sliding block is connected with the chassis through screws, and the 20 fork teeth are fixed behind the fork teeth and then supported.

Fig. 7 shows a schematic diagram of a jacking manner of the underground structure according to an embodiment of the present invention. As shown in fig. 7, the ball screw 22 is driven by the jacking motor and reducer assembly 23 to push the first jacking link 16 to perform circular motion, and simultaneously, the circular motion is divided into horizontal and vertical displacements under the action of the slider slide rail mechanism 19, the horizontal displacement is transferred to the internal relative motion of the slider slide rail mechanism 19, and the horizontal force is borne by the fork-tooth rear support 20 in fig. 5, so that the fork-tooth 9 finally only performs vertical motion, namely jacking.

The utility model discloses a ground ox's chassis structure accomplishes the limit with ground ox's road surface adaptability under limited terrain clearance. By adopting a sectional type chassis structure, the chassis structure is divided into a front section and a rear section which are connected through a hinge point 18. The front driven wheel assembly 11 comprises, for example, two wheels forming a seesaw structure, and two driving wheels 13; the universal driven wheel is arranged in the rear half section 15 of the chassis, so that the chassis is integrally in a structure similar to a structure that a tricycle drags two wheelbarrows, the front half section and the rear half section of the chassis can be well contacted with the ground, the driving wheel is positioned under the middle of the fork teeth, when a local cattle carries cargo, at least 60% of the weight of the cargo acts on the driving wheel, the chassis arrangement is very favorable for the use of the local cattle, and the ground holding force is greatly increased. Because the chassis can rotate around the hinge point 18, the chassis is allowed to fully contact the ground by adjusting the posture of the chassis within the range allowed by the ground clearance, and the full adaptability to the concave-convex ground is met under the condition of no pre-tightening.

And the chassis of the ground cattle is connected with the fork teeth by adopting a connecting rod structure (such as a five-connecting-rod structure), and the forward movement of a screw driven by a motor is converted into the lifting movement of the fork teeth through the movement of the connecting rod, so that the jacking of the chassis is realized. Through the connection of the connecting rods, the fork teeth and the chassis are made into a dense and inseparable whole, the chassis is also a base of the fork teeth, and the installation positions of the driving wheel, the walking motor, the jacking motor and the jacking connecting rod structure are provided, so that the structure is very high in compactness, all basic functional structural parts of the ground cattle are contained in the very limited hollow space under the fork teeth, and space resources are reasonably utilized.

The examples are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and it should be appreciated that the above description should not be construed as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 crustacean, comprising:

a chassis;

a plurality of wheels disposed on the chassis;

a tine mounted on the chassis,

the chassis comprises a front chassis half section and a rear chassis half section, and the rear chassis half section is hinged to the front chassis half section.

2. The device of claim 1, wherein the chassis further comprises a resilient member disposed between the front and rear chassis halves to clamp the front and rear chassis halves.

3. A bullhorn as claimed in claim 1 or 2, wherein the wheels comprise a drive wheel and a driven wheel, the drive wheel being located centrally of the tines, the driven wheel comprising a driven wheel located on the rear half of the chassis and on the front half of the chassis.

4. The mule according to claim 1 or 2, further comprising a jacking linkage provided on the chassis, the jacking linkage being connected to the tines and configured to adjust the height of the tines.

5. The underground buller of claim 4, further comprising a motor, a speed reducer and a ball screw arranged on the chassis, wherein the motor drives the ball screw through the speed reducer, and further drives the jacking link mechanism to adjust the height of the fork teeth.

6. The bullnose of claim 4, wherein the jacking linkage mechanism comprises a first jacking link mounted on the front half of the chassis and a second jacking link mounted on the rear half of the chassis.

7. The bullhorn of claim 4, further comprising a slider slide mechanism mounted between the jacking linkage and the tines and configured to absorb a horizontal component of motion of the jacking linkage.

8. The bullhorn of claim 7, wherein the slider slide rail mechanism comprises a slider and a slide rail, wherein the slide rail is secured to the tines, and wherein the slider is secured to an upper end of the jacking linkage mechanism.

9. A ground craft according to any of claims 5 to 7 wherein the tines include a tine rear support, the tine rear supporting the tine in a horizontal direction.

10. The underground buller of claim 1 or 2, wherein the chassis further comprises a limiting member disposed on the front half or the rear half of the chassis to limit a relative rotational angle range between the front half and the rear half of the chassis.

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