Transport vehicle
阅读说明:本技术 输送车 (Transport vehicle ) 是由 王通宙 于 2020-08-31 设计创作,主要内容包括:本发明涉及输送车领域,具体而言,涉及一种输送车。输送车,包括支撑架、第一轮轴、第二轮轴、第一凸轮、第二凸轮、凸轮轴、第一摆臂、第二摆臂和摆臂轴;凸轮轴与支撑架转动配合,且第一凸轮和第二凸轮均与凸轮轴固定连接;摆臂轴安装在支撑架上,第一摆臂和第二摆臂均与摆臂轴转动配合,第一凸轮的回转面与第一摆臂抵接,第二凸轮的回转面与第二摆臂抵接;第一摆臂用于驱动第一轮轴相对支撑架升降;第二摆臂用于驱动第二轮轴相对支撑架升降。本发明提供的输送车,结构简单,成本较低,而且仅需转动凸轮轴便可实现换向功能,操作简单,耗时较短,从而,运输货物的效率较高。(The invention relates to the field of delivery trucks, in particular to a delivery truck. The conveying vehicle comprises a supporting frame, a first wheel shaft, a second wheel shaft, a first cam, a second cam, a cam shaft, a first swing arm, a second swing arm and a swing arm shaft; the cam shaft is in rotating fit with the support frame, and the first cam and the second cam are both fixedly connected with the cam shaft; the swing arm shaft is arranged on the support frame, the first swing arm and the second swing arm are in rotating fit with the swing arm shaft, the revolution surface of the first cam is abutted against the first swing arm, and the revolution surface of the second cam is abutted against the second swing arm; the first swing arm is used for driving the first wheel shaft to lift relative to the supporting frame; the second swing arm is used for driving the second wheel shaft to lift relative to the supporting frame. The conveying vehicle provided by the invention has the advantages of simple structure, lower cost, capability of realizing a reversing function only by rotating the cam shaft, simplicity in operation and shorter time consumption, so that the efficiency of transporting goods is higher.)
1. A transport vehicle is characterized by comprising a support frame, a first wheel shaft (100), a second wheel shaft (200), a first cam (300), a second cam (400), a cam shaft (500), a first swing arm (600), a second swing arm (700) and a swing arm shaft (800);
the camshaft (500) is in rotating fit with the supporting frame, and the first cam (300) and the second cam (400) are both fixedly connected with the camshaft (500); the swing arm shaft (800) is mounted on the support frame, the first swing arm (600) and the second swing arm (700) are in running fit with the swing arm shaft (800), the revolution surface of the first cam (300) is abutted against the first swing arm (600), and the revolution surface of the second cam (400) is abutted against the second swing arm (700);
the first swing arm (600) is connected with the first wheel shaft (100) and used for driving the first wheel shaft (100) to lift relative to the supporting frame; the second swing arm (700) is connected with the second wheel shaft (200) and used for driving the second wheel shaft (200) to lift relative to the supporting frame; the second axle (200) maintains a current height or descends while the first axle (100) ascends; the second axle (200) maintains a current height or rises as the first axle (100) descends.
2. The cart according to claim 1, wherein a surface of the first swing arm (600) abutting the first cam (300) is a flat surface, a surface of the second swing arm (700) abutting the second cam (400) is a flat surface, and the first cam (300) and the second cam (400) have a phase difference.
3. The conveyor car according to claim 1, characterized in that the second wheel axle (200) is perpendicular to the cam axle (500), the second wheel axle (200) has a transmission block (210), the transmission block (210) has two tenons (211), the two tenons (211) are respectively located on both sides of the second wheel axle (200) in the length direction of the first wheel axle (100); the tenon (211) corresponds to the second swing arm (700) one by one, and the second swing arm (700) is connected with the corresponding tenon (211) and used for driving the tenon (211) to lift.
4. Delivery wagon according to claim 3, characterized in that a synchronizing shaft (710) is connected between the two second swing arms (700) corresponding to the two tenons (211) on the same transmission block (210).
5. The transport cart of claim 3, wherein at least two transmission blocks (210) are arranged on a single second wheel axle (200) at intervals along the length direction, the swing arm shafts (800) correspond to the transmission blocks (210) one by one, and each swing arm shaft (800) is in running fit with the second swing arm (700) connected to the corresponding transmission block (210).
6. Transport carriage as claimed in claim 5, characterized in that between the second swing arms (700) corresponding to each of the transmission blocks (210) on the same second wheel axle (200) there is a first connecting rod (720), in each of the second swing arms (700) of the transmission blocks (210) connected to the same second wheel axle (200) there is one of the second swing arms (700) in abutment with the surface of revolution of the second cam (400).
7. Delivery wagon according to claim 3, wherein the first swing arm (600) has a first U-shaped groove, with which the first wheel axle (100) cooperates;
and/or the second swing arm (700) is provided with a second U-shaped groove, and the tenon (211) is matched with the second U-shaped groove.
8. Transport vehicle according to any of claims 1-7, characterized in that a single first wheel axle (100) is connected lengthwise to at least two first swing arms (600), respectively.
9. Transport vehicle according to any of claims 1-7, characterized in that the number of the first axles (100) is at least two and that each of the first axles (100) is arranged at intervals in a direction perpendicular to the camshaft (500);
the swing arm shafts (800) correspond to the first wheel shafts (100) one by one, and the first wheel shafts (100) are connected with the first swing arms (600) on the corresponding swing arm shafts (800).
10. A vehicle according to claim 9, characterized in that second connecting rods (610) are articulated between said first swing arms (600), and in each of said first swing arms (600) to which each of said second connecting rods (610) is articulated, there is one of said first swing arms (600) in abutment with the surface of revolution of said first cam (300).
Technical Field
The invention relates to the field of delivery trucks, in particular to a delivery truck.
Background
The conveying vehicle with the reversing function comprises a first wheel shaft and a second wheel shaft which are perpendicular to each other, wherein idler wheels are mounted at two ends of the first wheel shaft and two ends of the second wheel shaft; when the rollers on the second wheel axle touch the ground, the conveying vehicle can walk in the direction perpendicular to the second wheel axle, so that the reversing function can be realized.
However, the reversing mechanism of the existing conveying vehicle is very complex, the cost is high, the time consumption of the reversing process is long, and the efficiency of transporting goods is low.
In summary, how to overcome the above-mentioned defects of the existing transportation vehicles is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a conveying vehicle to solve the technical problems that the conveying vehicle in the prior art is complex in structure, high in cost and low in cargo conveying efficiency.
The invention provides a delivery wagon, which comprises a support frame, a first wheel axle, a second wheel axle, a first cam, a second cam, a cam shaft, a first swing arm, a second swing arm and a swing arm shaft.
The cam shaft is in rotating fit with the supporting frame, and the first cam and the second cam are both fixedly connected with the cam shaft; the swing arm shaft is installed on the support frame, the first swing arm and the second swing arm are in running fit with the swing arm shaft, the revolution surface of the first cam is abutted to the first swing arm, and the revolution surface of the second cam is abutted to the second swing arm.
The first swing arm is connected with the first wheel shaft and used for driving the first wheel shaft to lift relative to the supporting frame; the second swing arm is connected with the second wheel shaft and used for driving the second wheel shaft to lift relative to the supporting frame; when the first wheel axle is lifted, the second wheel axle maintains the current height or descends; the second axle maintains a current height or rises as the first axle descends.
Preferably, as an embodiment, a surface of the first swing arm that abuts against the first cam is a flat surface, a surface of the second swing arm that abuts against the second cam is a flat surface, and the first cam and the second cam have a phase difference.
Preferably, as an embodiment, the second wheel axle is perpendicular to the cam axle, the second wheel axle has a transmission block, the transmission block has two tenons, and the two tenons are respectively positioned at two sides of the second wheel axle along the length direction of the first wheel axle; the tenon is in one-to-one correspondence with the second swing arm, and the second swing arm is connected with the corresponding tenon and is used for driving the tenon to lift.
Preferably, as an implementation mode, a synchronizing shaft is connected between two second swing arms corresponding to two tenons on the same transmission block.
Preferably, as an implementation manner, at least two transmission blocks are arranged on a single second wheel shaft at intervals along the length direction, the swing arm shafts correspond to the transmission blocks one to one, and each swing arm shaft is in running fit with the second swing arm connected to the corresponding transmission block.
Preferably, as an implementation mode, a first connecting rod is hinged between the second swing arms corresponding to the transmission blocks on the same second wheel shaft, one of the second swing arms connected to the transmission blocks on the same second wheel shaft abuts against a rotating surface of the second cam.
Preferably, as an embodiment, the first swing arm has a first U-shaped groove, and the first wheel axle is matched with the first U-shaped groove;
and/or the second swing arm is provided with a second U-shaped groove, and the tenon is matched with the second U-shaped groove.
Preferably, as an implementation mode, a single first wheel axle is respectively connected with at least two first swing arms along the length direction.
Preferably, as an implementation mode, the number of the first wheel shafts is at least two, and each first wheel shaft is arranged at intervals along a direction perpendicular to the cam shaft.
The swing arm shafts are in one-to-one correspondence with the first wheel shafts, and the first wheel shafts are connected with the first swing arms on the corresponding swing arm shafts.
Preferably, as an implementation mode, second connecting rods are hinged between the first swing arms, and in each first swing arm hinged to each second connecting rod, one first swing arm is abutted to a rotating surface of the first cam.
The conveying vehicle provided by the invention has the beneficial effects that:
according to the conveying vehicle provided by the invention, when the camshaft is rotated, the first cam and the second cam can synchronously rotate with the camshaft, and when the first cam rotates, the revolution surface of the first cam can push the first swing arm to swing around the swing arm shaft, so that the first swing arm is utilized to drive the first wheel shaft to lift relative to the supporting frame; when the second cam rotates, the revolution surface of the second cam can push the second swing arm to swing around the swing arm shaft, so that the second swing arm is utilized to drive the second wheel shaft to lift relative to the support frame. When the cam shaft is rotated to enable the first wheel shaft to ascend relative to the supporting frame, the second wheel shaft maintains the current height or descends; when the cam shaft is rotated to lower the second wheel shaft relative to the support frame, the second wheel shaft maintains the current height or is raised, so that the first wheel shaft or the second wheel shaft can be grounded by rotating the cam shaft.
When the roller on the first wheel axle of the conveying vehicle lands, if reversing is needed, the cam axle can be rotated to enable the first wheel axle to ascend relative to the supporting frame or enable the second wheel axle to descend relative to the supporting frame until the roller on the first wheel axle is lifted off and the roller on the second wheel axle lands, so that the conveying of the conveying vehicle is convenient, the direction perpendicular to the first wheel axle can be converted into the direction perpendicular to the second wheel axle; similarly, when the roller on the second wheel axle of the transport vehicle touches the ground, if reversing is needed, the cam axle can be rotated to enable the first wheel axle to descend relative to the support frame or enable the second wheel axle to ascend relative to the support frame until the roller on the second wheel axle leaves the ground and the roller on the first wheel axle touches the ground, so that the direction perpendicular to the second wheel axle can be converted into the direction perpendicular to the first wheel axle when the transport vehicle is conveniently transported.
Therefore, the conveying vehicle provided by the invention has the advantages of simple structure, lower cost, simple operation and shorter time consumption, can realize the reversing function only by rotating the cam shaft, and has higher cargo conveying efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic partial structural view of a transportation vehicle provided in an embodiment of the present invention;
fig. 2 is an enlarged view of a portion a in fig. 1.
Icon:
100-a first axle;
200-a second axle; 210-a transmission block; 211-tenon;
300-a first cam;
400-a second cam;
500-a camshaft;
600-a first swing arm; 610-a second link;
700-a second swing arm; 710-a synchronization shaft; 720-a first link;
800-swing arm shaft.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Referring to fig. 1 and fig. 2, in the transportation vehicle provided in this embodiment, when the
When the roller on the first wheel axle 100 of the transportation vehicle touches the ground, if the direction needs to be changed, the
Consequently, the delivery wagon that this embodiment provided, simple structure, the cost is lower, only need
For example, when the
Specifically, a surface of the
Arranging the second wheel axle 200 to be perpendicular to the
It should be noted that, by connecting the
Preferably, the synchronizing
At least two
Specifically, one
Preferably, the first connecting
Specifically, there are at least two second wheel shafts 200, and each second wheel shaft 200 is arranged at intervals along the length direction of the
Particularly, a first U-shaped groove may be formed in the
Similarly, a second U-shaped groove can be formed in the
The single first wheel axle 100 is respectively connected with the at least two
Specifically, two ends of a single first wheel axle 100 may be respectively connected to one
The number of the first wheel shafts 100 is at least two, and the first wheel shafts 100 are arranged at intervals in a direction perpendicular to the
Preferably, can articulate second connecting rod 610 between
When both ends of a single first wheel axle 100 are respectively connected with one
In summary, the present invention discloses a delivery wagon, which overcomes many technical defects of the conventional delivery wagon. The delivery wagon that this embodiment provided, simple structure, the cost is lower, only need rotate
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
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