CN111846014A - Transport vehicle - Google Patents

Abstract

The invention relates to the field of conveying vehicles, in particular, to a conveying vehicle. The conveying vehicle includes a support 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 rotatably matched with the support frame, and the first Both a cam and a second cam are fixedly connected with the camshaft; the swing arm shaft is installed on the support frame, the first swing arm and the second swing arm are both rotatably matched with the swing arm shaft, and the revolving surface of the first cam is connected to the first swing arm Abutting, the rotating surface of the second cam is in contact with the second swing arm; the first swing arm is used to drive the first axle to move up and down relative to the support frame; the second swing arm is used to drive the second axle to move up and down relative to the support frame. The conveying vehicle provided by the invention has the advantages of simple structure and low cost, and the reversing function can be realized only by rotating the camshaft, the operation is simple, and the time consumption is short, so that the efficiency of transporting goods is high.

Description

Conveyor

technical field

The invention relates to the field of conveying vehicles, in particular, to a conveying vehicle.

Background technique

The conveying vehicle with the reversing function includes a first axle and a second axle that are perpendicular to each other, and rollers are installed at both ends of the first axle and the second axle, and the conveying vehicle also includes a deformation mechanism. , Lift the second axle so that the roller on the first axle touches the ground or the roller on the second axle touches the ground. When the roller on the first axle touches the ground, the conveying vehicle can walk in the direction perpendicular to the first axle; 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 complicated, the cost is high, and the reversing process takes a long time, resulting in low efficiency in transporting goods.

To sum up, how to overcome the above-mentioned defects of the existing conveying vehicles is a technical problem to be solved urgently by those skilled in the art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a conveying vehicle, so as to alleviate the technical problems of complex structure, high cost and low efficiency of transporting goods in the conveying vehicle in the prior art.

The conveying vehicle provided by the present invention includes a support 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.

Wherein, the camshaft is rotatably matched with the support frame, and both the first cam and the second cam are fixedly connected to the camshaft; the swing arm shaft is mounted on the support frame, and the The first swing arm and the second swing arm are both rotatably matched with the swing arm shaft, the revolving surface of the first cam is in contact with the first swing arm, and the revolving surface of the second cam is in contact with the The second swing arm abuts.

The first swing arm is connected with the first axle for driving the first axle to move up and down relative to the support frame; the second swing arm is connected with the second axle for driving the second axle The wheel axle moves up and down relative to the support frame; when the first wheel axle rises, the second wheel axle maintains the current height or descends; when the first wheel axle descends, the second wheel axle maintains the current height or rises.

Preferably, as an embodiment, the surface of the first swing arm abutting the first cam is a plane, and the surface of the second swing arm abutting the second cam is a plane, There is a phase difference between the first cam and the second cam.

Preferably, as an embodiment, the second axle is perpendicular to the camshaft, the second axle has a transmission block, and the transmission block has two protruding tenons, and the two protruding tenons are respectively located in the the two sides of the second axle along the length direction of the first axle; the tenons are in one-to-one correspondence with the second swing arms, and the second swing arms are connected with the corresponding tenons for use in Drive the tenon to move up and down.

Preferably, as an embodiment, a synchronization shaft is connected between the two second swing arms corresponding to the two tenons on the same transmission block.

Preferably, as an embodiment, at least two transmission blocks are arranged at intervals along the length direction of a single second wheel shaft, the swing arm shafts correspond to the transmission blocks one-to-one, and each of the transmission blocks is in one-to-one correspondence. The swing arm shafts are respectively rotatably matched with the second swing arms connected to the corresponding transmission blocks.

Preferably, as an implementation manner, a first link is hinged between the second swing arms corresponding to each of the transmission blocks on the same second axle, and a first link is connected to the same second axle. Among each of the second swing arms of the transmission block, one of the second swing arms is in contact with the rotating surface of the second cam.

Preferably, as an embodiment, the first swing arm has a first U-shaped groove, and the first axle is matched with the first U-shaped groove;

And/or, the second swing arm has a second U-shaped groove, and the tenon is matched with the second U-shaped groove.

Preferably, as an embodiment, the single first wheel axle is respectively connected with at least two of the first swing arms along the length direction.

Preferably, as an embodiment, there are at least two first axles, and each of the first axles is arranged at intervals along a direction perpendicular to the camshaft.

The swing arm shaft is in one-to-one correspondence with the first wheel shaft, and the first wheel shaft is connected with the first swing arm on the corresponding swing arm shaft.

Preferably, as an embodiment, a second link is hinged between the first swing arms, and among the first swing arms hinged by each of the second links, there is one of the first The swing arm is in contact with the rotating surface of the first cam.

The beneficial effects of the conveying vehicle provided by the present invention are:

In the transport vehicle provided by the present invention, when the camshaft is rotated, the first cam and the second cam can rotate synchronously with the camshaft, and when the first cam rotates, the revolving surface of the first cam can push the first swing arm to swing around the swing arm axis, To use the first swing arm to drive the first axle to move up and down relative to the support frame; when the second cam rotates, the revolving surface of the second cam can push the second swing arm to swing around the swing arm axis, so as to use the second swing arm to drive the second axle relative to the support frame. The support frame is raised and lowered. When the camshaft is rotated so that the first axle rises relative to the support frame, the second axle maintains the current height or descends; when the camshaft is rotated to make the second axle descend relative to the support frame, the second axle maintains the current height or rises, thus, By turning the camshaft, you can choose whether the first axle or the second axle is on the ground.

When the roller on the first axle of the conveying vehicle touches the ground, if the direction needs to be reversed, the camshaft can be rotated to raise the first axle relative to the support frame or lower the second wheel axle relative to the support frame until the rollers on the first axle are separated from the support frame. and the rollers on the second axle touch the ground. In this way, the transportation of the conveying vehicle will be in a direction perpendicular to the first axle, which will be converted to a direction perpendicular to the second axle; similarly, when the second axle of the conveying vehicle is on the When the roller touches the ground, if the direction needs to be reversed, the camshaft can be rotated to lower the first wheel shaft relative to the support frame or raise the second wheel shaft relative to the support frame, until the roller on the second wheel shaft is off the ground, and the first wheel shaft Until the roller touches the ground, in this way, the conveying vehicle will be in a direction perpendicular to the second wheel axis, which will be converted into a direction perpendicular to the first wheel axis.

Therefore, the conveying vehicle provided by the present invention has a simple structure and low cost, and only needs to rotate the camshaft to realize the reversing function, the operation is simple, and the time-consuming is short, so that the efficiency of transporting goods is high.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is a partial structural schematic diagram of a transport vehicle provided by an embodiment of the present invention;

FIG. 2 is an enlarged view of part A in FIG. 1 .

icon:

100 - the first axle;

200-second axle; 210-transmission block; 211-tenon;

300 - the first cam;

400 - the second cam;

500 - camshaft;

600 - the first swing arm; 610 - the second link;

700-second swing arm; 710-synchronizing shaft; 720-first link;

800 - Swing arm axis.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and to simplify the description rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated 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, and it can be the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

Referring to FIGS. 1 and 2 , in the transport vehicle provided in this embodiment, when the camshaft 500 is rotated, the first cam 300 and the second cam 400 can rotate synchronously with the camshaft 500 , and when the first cam 300 rotates, the first cam 300 rotates The revolving surface can push the first swing arm 600 to swing around the swing arm shaft 800, so as to use the first swing arm 600 to drive the first axle 100 to move up and down relative to the support frame; when the second cam 400 rotates, the revolving surface of the second cam 400 can push the first axle 100 to move up and down. The second swing arm 700 swings around the swing arm shaft 800 to drive the second axle 200 to move up and down relative to the support frame by the second swing arm 700 . When the camshaft 500 is rotated to make the first axle 100 rise relative to the support frame, the second axle 200 maintains the current height or descends; when the camshaft 500 is rotated to make the second axle 200 descend relative to the support frame, the second axle 200 maintains the current height height or rise, so that by rotating the camshaft 500, it is possible to select whether the first axle 100 or the second axle 200 touches the ground.

When the roller on the first axle 100 of the conveying vehicle touches the ground, if the direction needs to be reversed, the camshaft 500 can be rotated to make the first axle 100 rise relative to the support frame or make the second axle 200 descend relative to the support frame until the first wheel axle The roller on the 100 lifts off the ground, and the roller on the second axle 200 touches the ground. In this way, the transportation of the conveying vehicle will be in a direction perpendicular to the first axle 100 and converted to a direction perpendicular to the second axle 200; similarly, When the roller on the second axle 200 of the conveying vehicle touches the ground, if the direction needs to be reversed, the camshaft 500 can be rotated to make the first axle 100 descend relative to the support frame or make the second axle 200 rise relative to the support frame until the second axle The roller on the 200 lifts off the ground and the roller on the first axle 100 touches the ground. In this way, the conveying vehicle will have a direction perpendicular to the second axle 200 and be converted to a direction perpendicular to the first axle 100.

Therefore, the conveying vehicle provided in this embodiment has a simple structure and low cost, and only needs to rotate the camshaft 500 to realize the reversing function, which is easy to operate and takes less time, so that the efficiency of transporting goods is high.

For example, when the camshaft 500 is in the initial position, the roller on the second axle 200 touches the ground, and the roller on the first axle 100 leaves the ground; the camshaft 500 rotates in a specific direction (defined as the positive direction) from the initial position to the opposite During the process of the initial position declination α, the first swing arm 600 and the second swing arm 700 both maintain the current status, the first axle 100 and the second axle 200 are both maintained at the current height; In the process of rotating from the declination angle α to the declination angle β, the first swing arm 600 swings, driving the first axle 100 to descend, and at the same time, the second swing arm 700 maintains the status quo, so that the second axle 200 is maintained at the current height; when the camshaft When the camshaft 500 rotates to a position relative to the initial position of the deflection angle β, the roller on the first axle 100 touches the ground, and at this time, the roller on the second axle 200 is also in the grounding state; During the rotation from the angle β to the declination angle γ, the first swing arm 600 and the second swing arm 700 both maintain the current status, and the first axle 100 and the second axle 200 are both maintained at the current height; When the initial position declination γ rotates to δ, the first swing arm 600 maintains the status quo, and the second swing arm 700 swings, driving the second axle 200 to rise; when the camshaft 500 rotates to a position relative to the initial position declination δ, The rollers on the second axle 200 are off the ground, and at this time, the rollers on the first axle 100 are kept on the ground, so that the reversing of the conveying vehicle is realized.

Specifically, the surface of the first swing arm 600 in contact with the first cam 300 is set as a plane, and the surface of the second swing arm 700 in contact with the second cam 400 is set as a plane, and on this basis , the first cam 300 and the second cam 400 are set to have a certain phase difference (the specific difference can be set as required), so that when the cam shaft 500 rotates in a certain direction in a certain interval, the first wheel shaft can be realized 100 rises, and the second axle 200 maintains the current height or the purpose of descending; when the camshaft 500 rotates in a specific direction in another interval, the first axle 100 can descend, and the second axle 200 maintains the current height or the purpose of rising .

The second axle 200 is arranged perpendicular to the camshaft 500 , and a transmission block 210 is arranged on the second axle 200 . On both sides of the wheel shaft 100 in the length direction; the tenons 211 on the transmission block 210 are arranged in a one-to-one correspondence with the second swing arm 700, and the second swing arm 700 is connected with the corresponding tenon 211, so that the second swing arm 700 It can drive the tenon 211 to rise and fall, so that the second axle 200 follows the transmission block 210 to rise and fall synchronously.

It should be noted that, connecting the second swing arm 700 with the tenons 211 disposed on both sides of the second axle 200 along the length direction of the first axle 100 can make the second axle 200 more balanced in force, which is convenient to improve the first axle 200 The precision of the lifting height of the second axle 200 enables the first axle 100 and the second axle 200 to land on or off the ground when the camshaft 500 rotates a predetermined angle, thereby improving the reliability of the conveying vehicle's reversing.

Preferably, the synchronizing shaft 710 can be connected between the two second swing arms 700 corresponding to the two lugs 211 on the same transmission block 210 , so that the synchronization of the lifting and lowering of the two lugs 211 can be improved to ensure a higher the stability.

At least two transmission blocks 210 can be arranged on a single second axle 200 at intervals along the length direction, the swing shafts and the transmission blocks 210 can be arranged in a one-to-one correspondence, and each swing arm shaft 800 is connected to the corresponding transmission block 210 respectively. The second swing arm 700 is rotatably matched, so that the second axle 200 has at least two force points spaced apart along the length direction, so that all parts of the second axle 200 can be raised and lowered uniformly without adding other structures.

Specifically, a transmission block 210 may be provided at both ends of the single second wheel shaft 200 , so as to better maintain the force stability of the second wheel shaft 200 .

Preferably, the first link 720 can be hinged between the second swing arms 700 corresponding to the transmission blocks 210 on the same second axle 200 , and the second swing arms of the transmission blocks 210 connected to the same second axle 200 In 700, only one second swing arm 700 needs to be in contact with the revolving surface of the second cam 400. When the second cam 400 rotates, it pushes the second swing arm 700 in contact with it to swing, and the swinging second swing arm 700 swings. The pair of 700 drives the other second swing arms 700 to swing through the first link 720, so that the synchronous swing of all the second swing arms 700 can be realized, which simplifies the structure and reduces the cost.

Specifically, there are at least two second wheel axles 200, and each second wheel axle 200 is arranged at intervals along the length direction of the camshaft 500. In this way, when the rollers on the second wheel axle 200 touch the ground, the conveying vehicle will be driven by at least four rollers. Hold up, in this way, the stable running of the conveyor can be realized by using four rollers alone.

In particular, a first U-shaped groove may be formed on the first swing arm 600 so that the first axle 100 can be snapped into the first U-shaped groove to realize the connection and cooperation between the first swing arm 600 and the first axle 100 , not only easy to disassemble, but also stable connection.

Similarly, a second U-shaped groove can be formed on the second swing arm 700, so that the tenon 211 of the transmission block 210 can be snapped into the second U-shaped groove, so as to realize the connection between the tenon 211 and the second U-shaped groove. The connection and cooperation are not only convenient for disassembly, but also stable in connection.

The single first axle 100 is respectively connected with at least two first swing arms 600 along the length direction, so that the first axle 100 has at least two stress points spaced apart along the length direction, without adding other structures, it can be All parts of the second axle 200 are raised and lowered in the same way.

Specifically, both ends of the single first axle 100 can be connected to a first swing arm 600 respectively, so that the force stability of the first axle 100 can be better maintained.

There are at least two first wheel shafts 100, and each first wheel shaft 100 is arranged at intervals along the direction perpendicular to the camshaft 500. On this basis, the swing arm shaft 800 and the first wheel shaft 100 are set in one-to-one correspondence , and connect the first axle 100 with the first swing arm 600 on the corresponding swing arm axle 800, that is, when the roller on the first axle 100 touches the ground, the conveying vehicle will be supported by at least four rollers, so , the use of four rollers alone can realize the stable driving of the conveyor.

Preferably, the second link 610 can be hinged between the first swing arms 600, and in each of the first swing arms 600 hinged with each second link 610, only one first swing arm 600 and the first cam 300 are required When the first cam 300 rotates, it pushes the abutting first swing arm 600 to swing, and the swinging first swing arm 600 drives the other first swing arms 600 to swing through the second link 610 , the synchronous swing of all the first swing arms 600 can be realized, the structure is simplified, and the cost is reduced.

When two ends of a single first wheel axle 100 are respectively connected with a first swing arm 600, each of the first swing arms 600 at the same end can be connected by a second link 610 perpendicular to the camshaft 500, that is, the second Two connecting rods 610 are provided.

To sum up, the present invention discloses a conveying vehicle, which overcomes many technical defects of the traditional conveying vehicle. The conveying vehicle provided in this embodiment has a simple structure and low cost, and only needs to rotate the camshaft 500 to realize the reversing function, the operation is simple, and the time-consuming is short, so that the efficiency of transporting goods is high.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (10)

1. A conveying vehicle, characterized in that it comprises a support frame, a first axle (100), a second axle (200), a first cam (300), a second cam (400), a camshaft (500), a first cam (300), a second cam (400), a a swing arm (600), a second swing arm (700) and a swing arm shaft (800); Wherein, the camshaft (500) is rotatably matched with the support frame, and both the first cam (300) and the second cam (400) are fixedly connected with the camshaft (500); the pendulum The arm shaft (800) is mounted on the support frame, the first swing arm (600) and the second swing arm (700) are both rotatably matched with the swing arm shaft (800), and the first cam The revolving surface of (300) is in contact with the first swing arm (600), and the revolving surface of the second cam (400) is in contact with the second swing arm (700); The first swing arm (600) is connected with the first axle (100), and is used to drive the first axle (100) to move up and down relative to the support frame; the second swing arm (700) is connected to the The second axle (200) is connected to drive the second axle (200) to move up and down relative to the support frame; when the first axle (100) rises, the second axle (200) maintains the current height or descends ; When the first axle (100) descends, the second axle (200) maintains the current height or rises. 2. The conveying vehicle according to claim 1, characterized in that the surface of the first swing arm (600) abutting with the first cam (300) is a plane, and the second swing arm (700) The surface of ) that abuts with the second cam (400) is a plane, and the first cam (300) and the second cam (400) have a phase difference. 3. The conveying vehicle according to claim 1, wherein the second axle (200) is perpendicular to the camshaft (500), and the second axle (200) has a transmission block (210), so The transmission block (210) has two protruding tenons (211), and the two protruding tenons (211) are respectively located on both sides of the second axle (200) along the length direction of the first axle (100) ; the tenon (211) is in one-to-one correspondence with the second swing arm (700), and the second swing arm (700) is connected with the corresponding tenon (211) for driving the tenon (211) Lift. 4. The conveying vehicle according to claim 3, characterized in that, between the two second swing arms (700) corresponding to the two tenons (211) on the same transmission block (210) A synchronizing shaft (710) is connected therebetween. 5. The conveying vehicle according to claim 3, characterized in that, at least two of the transmission blocks (210) are arranged at intervals along the length direction of a single second wheel shaft (200), and the swing arm shaft (800) ) are in one-to-one correspondence with the transmission blocks (210), and each of the swing arm shafts (800) is rotatably matched with the second swing arms (700) connected to the corresponding transmission blocks (210). 6 . The conveying vehicle according to claim 5 , wherein the second swing arms ( 700 ) corresponding to the respective transmission blocks ( 210 ) on the same second axle ( 200 ) are hingedly connected with each other. 7 . The first link (720), in each of the second swing arms (700) of the transmission block (210) connected to the same second axle (200), there is one second swing arm ( 700) in contact with the rotating surface of the second cam (400). 7 . The conveying vehicle according to claim 3 , wherein the first swing arm ( 600 ) has a first U-shaped groove, and the first axle ( 100 ) is connected to the first U-shaped groove. 8 . Cooperate; And/or, the second swing arm (700) has a second U-shaped groove, and the tenon (211) is matched with the second U-shaped groove. 8. The conveying vehicle according to any one of claims 1-7, characterized in that, the single first wheel axle (100) is respectively connected with at least two first swing arms (600) along the length direction. 9. The conveying vehicle according to any one of claims 1-7, characterized in that there are at least two first axles (100), and each of the first axles (100) is perpendicular to the The directions of the camshafts (500) are arranged at intervals; The swing arm shaft (800) is in one-to-one correspondence with the first wheel shaft (100), and the first wheel shaft (100) corresponds to the first swing arm (600) on the corresponding swing arm shaft (800). )connect. 10. The conveying vehicle according to claim 9, wherein a second link (610) is hinged between the first swing arms (600), and each second link (610) is hinged Among each of the first swing arms (600), one of the first swing arms (600) is in contact with the rotating surface of the first cam (300).

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