Automatic conveying device for electrostatic powder spraying of frame cross member of heavy truck

Abstract

The utility model relates to the technical field of conveying devices for industrial production, in particular to an automatic conveying device for electrostatic powder spraying of a frame cross beam of a heavy truck. Comprising a transmission cross beam used for supporting a heavy truck frame cross beam and a transmission chain used for driving the transmission cross beam, the transmission chain is of an annular structure with the two ends installed on chain wheels, the chain wheels are fixedly installed on a transmission shaft, the transmission shaft is in transmission connection with a driving mechanism, and supporting rods are fixedly installed on the upper surface of the transmission cross beam. The supporting rods are perpendicular to the movable working face of the conveying cross beam, and conveying longitudinal beams used for supporting the weight of the conveying cross beam are arranged below the conveying cross beam. The automatic conveying device is simple in structure, convenient to use and particularly suitable for automatic conveying of a heavy truck frame cross beam electrostatic powder spraying assembly line, the contact area between the automatic conveying device and the heavy truck frame cross beam is small in the conveying process, completeness of a coating is protected, and damage to the coating is reduced as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying devices for industrial production, in particular to an automatic conveying device for electrostatic powder spraying of a heavy truck frame crossbeam. Background Art

[0002] The crossbeam of a truck plays an important role in body structure, load distribution, stability and heavy object support. It bears the weight of the cargo and transfers gravity to the wheels through the longitudinal beam to ensure the stability and balance of the vehicle. The crossbeam of a heavy truck frame is long and heavy, and it is easy to scratch the electrostatic spray coating on the surface during transportation. In order to reduce friction during transportation, roller conveyors are usually used to transport heavy truck frame crossbeams in electrostatic powder spraying workshops. For example, Chinese Patent 2023203034413 discloses a "Pallet Roller Conveyor", which includes a support device, a conveying platform, a drive device and a conveying roller. Several groups of conveying rollers installed in a transversely equidistant manner are arranged on the top of the conveying platform. The drive device drives the conveying roller to rotate, and the conveying roller under the cargo rotates to convey the cargo forward, and multiple conveying rollers arranged in sequence relay to transfer the cargo forward. This type of roller conveyor will only produce rolling friction with the bottom of the goods when working, which will cause less damage to the goods themselves or the cured coating. However, when transporting heavy truck frame beams that have not been electrostatically powder sprayed for a long time, due to the heavy weight of the frame beams and the large contact area with the conveying rollers, it is still possible to damage the incompletely cured electrostatic powder coating, causing a large area of ​​coating peeling off on the lower surface of the heavy truck frame beams. Utility Model Content

[0003] In order to overcome the defects of the prior art, the utility model provides an automatic conveying device for electrostatic powder spraying of heavy truck frame beams which has a simple structure and is easy to use. During the conveying process, the contact area with the heavy truck frame beam is small, which is beneficial to protecting the integrity of the coating and minimizing damage to the coating.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses an automatic conveying device for electrostatic powder spraying of a heavy truck frame beam, comprising a transmission beam for supporting the heavy truck frame beam and a transmission chain for driving the transmission beam, wherein the transmission chain is an annular structure with sprockets mounted on both ends, the sprockets being fixedly mounted on a transmission shaft, the transmission shaft being in transmission connection with a driving mechanism, a support rod being fixedly mounted on the upper surface of the transmission beam, the support rod being perpendicular to the moving working surface of the transmission beam, and a transmission longitudinal beam for supporting the weight of the transmission beam being arranged below the transmission beam.

[0006] Through this solution, the conveying device uses the support rod to prop up the frame crossbeam when conveying the frame crossbeam of a heavy truck, and the contact area with the frame crossbeam is small, which is conducive to protecting the integrity of the coating and minimizing damage to the coating.

[0007] Preferably, a U-shaped slide groove is provided on the upper surface of the transmission longitudinal beam, and a pulley matching the U-shaped slide groove is installed under the transmission cross beam.

[0008] Through this solution, the transmission longitudinal beam can not only support the weight of the transmission crossbeam and the heavy truck frame crossbeam, but also reduce the friction when the transmission crossbeam moves, and guide the movement of the transmission crossbeam to prevent the transmission crossbeam from deviating.

[0009] Preferably, the transmission longitudinal beam is fixedly installed on a longitudinal beam bracket, and the longitudinal beam bracket includes a bracket column arranged on the outside of the transmission chain and a bracket crossbeam fixedly connected to the upper end of the bracket column, and the transmission longitudinal beam is fixedly installed on the bracket crossbeam.

[0010] Through this solution, the installation of the transmission longitudinal beam is independent of the transmission chain and will not interfere with the operation of the transmission chain.

[0011] Preferably, both ends of the transmission longitudinal beam are sleeved on the transmission shaft through bearings.

[0012] With this solution, the transmission longitudinal beam and the transmission chain are installed on the same set of transmission shafts and will not interfere with the operation of the transmission chain.

[0013] Preferably, the chain is provided with connecting links, and the connecting pins in the connecting links are fixedly connected to the ends of the transmission beams.

[0014] Through this solution, the transmission beam and the chain are tightly combined, the structure is simple, and it is easy to install and maintain.

[0015] The beneficial effect of the utility model is that the automatic conveying device has a simple structure and is easy to use. It is particularly suitable for automatic conveying of electrostatic powder spraying lines for heavy truck frame beams. During the conveying process, the contact area with the heavy truck frame beams is small, which is beneficial to protecting the integrity of the coating and minimizing damage to the coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of another embodiment of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the end face of the transmission longitudinal beam. DETAILED DESCRIPTION

[0019] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0020] like Figure 1 As shown, the utility model of an automatic conveying device for electrostatic powder spraying of a heavy truck frame crossbeam comprises a transmission crossbeam 1 for supporting a heavy truck frame crossbeam 2, a transmission chain 3 for driving the transmission crossbeam 1, and the transmission chain 3 is an annular structure with two ends mounted on a sprocket 4, the sprocket 4 is fixedly mounted on a transmission shaft 5, and the transmission shaft 5 is connected to the driving mechanism in a transmission manner. The connection structure between the sprocket 4 and the transmission shaft 5 is an existing conventional setting, two equal-length transmission shafts 5 are arranged in parallel at a certain distance, and a sprocket 4 is installed at both ends of each transmission shaft 5, and the sprockets 4 at the same end of the two transmission shafts 5 are used as a group of sprockets, and a ring-shaped transmission chain 3 is mounted on each group of sprockets. When the driving mechanism drives the transmission shaft 5 and the sprocket 4 to rotate, the transmission chain 3 can be driven to operate.

[0021] A plurality of transmission beams 1 are arranged in parallel at equal intervals. A support rod 6 is fixedly installed on the upper surface of the transmission beam 1. The support rod 6 is perpendicular to the moving working surface of the transmission beam 1. The support rod 6 can be directly welded to the transmission beam 1, or an external thread can be set at the lower end of the support rod 6, and an internal thread hole is set on the transmission beam 1, and the support rod 6 is connected to the transmission beam 1 through threads; a transmission longitudinal beam 7 for supporting the weight of the transmission beam 1 is arranged below the transmission beam 1. The length of the transmission longitudinal beam 7 is adapted to the spacing between the two transmission shafts 5, so that the transmission beam 1 can be supported by the transmission longitudinal beam 7 throughout the entire operation of the transmission beam 1 above the transmission chain 3.

[0022] like Figure 1 , Figure 3 As shown, the upper surface of the transmission longitudinal beam 7 is provided with a U-shaped slide groove 77, and a channel steel with an opening upward can also be directly used as the transmission longitudinal beam 7; the lower surface of the transmission cross beam 1 is provided with a pulley 11 matching the U-shaped slide groove 77. Figure 3As shown, a shaft seat 13 extending downward is provided at the lower end of the transmission beam 1, and the pulley 11 is rotatably mounted on the shaft seat 13 through its wheel axle, and the wheel axle of the pulley 11 is perpendicular to the central axis of the transmission longitudinal beam 7 and parallel to the central axis of the transmission beam 1. When the transmission beam 1 moves to the top of the transmission longitudinal beam 7 driven by the transmission chain 3, the pulley 11 is inserted into the U-shaped slide groove 77 to support the weight of the transmission beam 1. As the transmission beam 1 moves, the pulley 11 slides in the U-shaped slide groove 77 until the transmission beam 1 moves to the end of the transmission longitudinal beam 7, and the pulley 11 slides out of the U-shaped slide groove 77. As the sprocket 4 runs, the transmission beam 1 bypasses the transmission shaft 5 and moves to the bottom of the transmission chain 3, and the circular motion is continuously performed in this way.

[0023] The function of the transmission longitudinal beam 7 is to support the weight of the transmission cross beam 1, reduce the load of the transmission chain 3, and prevent the transmission chain 3 from sagging. At the same time, it is required that the setting of the transmission longitudinal beam 7 should not hinder the operation of the transmission chain 3.

[0024] As an embodiment of the present utility model, Figure 1 As shown, the transmission longitudinal beam 7 is fixedly installed on the longitudinal beam bracket 71, and the longitudinal beam bracket 71 includes a bracket column arranged outside the transmission chain 3 and a bracket cross beam 72 fixedly connected to the upper end of the bracket column. The transmission longitudinal beam 7 is fixedly installed on the bracket cross beam 72. Figure 1 Only a part of the longitudinal beam support 71 is shown, but it is not difficult to understand that the longitudinal beam support 71 is a frame structure composed of at least 4 support columns, two support cross beams 72 and a plurality of frame rods connected between the support columns. The two support cross beams 72 are respectively arranged at both ends of the longitudinal beam support 71 to support the longitudinal beam support 71 to lift it off the ground and leave space below to allow the transmission chain 3 to pass through.

[0025] like Figure 2 As shown, as another embodiment of the utility model, the two ends of the transmission longitudinal beam 7 are sleeved on the transmission shaft 5 through bearings. When the two transmission shafts 5 are arranged in parallel, the two ends of the transmission longitudinal beam 7 are sleeved on the transmission shaft 5, and the transmission shaft 5 is used to support the weight of the transmission longitudinal beam 7, so that the transmission longitudinal beam 7 is off the ground and leaves space below, which can also allow the transmission chain 3 to pass through the bottom of the transmission longitudinal beam 7.

[0026] In addition, as a further improvement of the present invention, the chain 3 is provided with a connecting link 12, and the basic structure and specification size of the connecting link 12 are the same as those of an ordinary link, except that the connecting pin 14 in the connecting link 12 is fixedly connected to the end of the transmission beam 1. In this way, the connecting link 12 of the chain 3 can be used as a connecting mechanism of the transmission beam 1, making the structure more compact, simplifying the connecting mechanism, and facilitating installation and maintenance.

[0027] like Figure 1, Figure 2 As shown, when in use, the heavy truck frame beam 2 is placed longitudinally on the transmission beam 1, and only the top of the support rod 6 is against the bottom of the heavy truck frame beam 2. Since the force-bearing area of ​​the heavy truck frame beam 2 is small, the damage to the coating during the transmission process can be reduced, and the point damage formed on the top of the support rod 6 can be repaired by manual spot coating later. Since the length of the heavy truck frame beam 2 is much larger than the width of the transmission beam 1, a heavy truck frame beam 2 is usually supported by multiple parallel transmission beams 1 at the same time. When the transmission chain 3 is running, it drives the transmission beam 1 to transport the heavy truck frame beam 2 from one end of the transmission chain 3 to the other end.

[0028] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An automatic conveying device for electrostatic powder spraying of a heavy truck frame crossbeam, comprising a transmission crossbeam (1) for supporting a heavy truck frame crossbeam (2), and a transmission chain (3) for driving the transmission crossbeam (1), wherein the transmission chain (3) is an annular structure with two ends mounted on a sprocket (4), the sprocket (4) being fixedly mounted on a transmission shaft (5), and the transmission shaft (5) being in transmission connection with a driving mechanism, characterized in that: A support rod (6) is fixedly mounted on the upper surface of the transmission crossbeam (1), the support rod (6) being perpendicular to the moving working surface of the transmission crossbeam (1), and a transmission longitudinal beam (7) for supporting the weight of the transmission crossbeam (1) is arranged below the transmission crossbeam (1).

2. According to claim 1, an automatic conveying device for electrostatic powder spraying of a heavy truck frame crossbeam is characterized in that: A U-shaped sliding groove (77) is provided on the upper surface of the transmission longitudinal beam (7), and a pulley (11) matching the U-shaped sliding groove (77) is installed below the transmission cross beam (1).

3. The automatic conveying device for electrostatic powder spraying of heavy truck frame crossbeams according to claim 1 or 2, characterized in that: The transmission longitudinal beam (7) is fixedly mounted on a longitudinal beam bracket (71), wherein the longitudinal beam bracket (71) comprises a bracket column arranged outside the transmission chain (3) and a bracket cross beam (72) fixedly connected to the upper end of the bracket column, and the transmission longitudinal beam (7) is fixedly mounted on the bracket cross beam (72).

4. The automatic conveying device for electrostatic powder spraying of heavy truck frame crossbeams according to claim 1 or 2, characterized in that: Both ends of the transmission longitudinal beam (7) are sleeved on the transmission shaft (5) via bearings.

5. The automatic conveying device for electrostatic powder spraying of heavy truck frame crossbeams according to claim 1 or 2, characterized in that: The chain (3) is provided with a connecting link (12), and a connecting pin in the connecting link (12) is fixedly connected to the end of the transmission beam (1).

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