Cover plate opening structure for balance iron of loading machine

Abstract

The utility model provides a loading machine balance iron opening cover plate structure which comprises a balance iron body, the balance iron body comprises a first upper flat plate and a first side vertical plate, a urea side adding opening is formed in the vertical intersection of the first upper flat plate and the first side vertical plate, and the opening cover plate structure is characterized by further comprising an L-shaped opening cover plate, a hinge and a limiting mechanism, the L-shaped opening cover plate is arranged in the urea side adding opening, a second upper flat plate of the L-shaped opening cover plate is hinged to a first upper flat plate through a hinge, two movable plates of the hinge are both located in the balance iron body, and the limiting mechanism is arranged on the inner side of a first side vertical plate. The upper plane of the first upper flat plate is flush with the upper plane of the second upper flat plate, and the outer side face of the first side vertical plate is flush with the outer side face of the second side vertical plate. The opening cover plate structure is convenient to operate and use, neat in appearance and convenient to repair and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of the processing and manufacturing of the counterweight accessories of a loader, in particular to an opening cover structure of the counterweight of a loader. Background Art

[0002] During the operation of a loader, in order to achieve the balance of the loader, a counterweight is generally arranged on the loader away from the bucket. The inside of the counterweight is hollow, and weights (such as sand) can be added according to requirements. The urea tank of some loaders is arranged on one side inside the counterweight. Since urea needs to be added to the urea tank regularly, a urea side filling port needs to be opened on the counterweight of the loader. The urea side filling port is generally closed by an opening cover. The existing opening cover is usually welded to the surface of the counterweight by a hinge. The opening cover is higher than the upper surface of the counterweight, and a buckle lock is welded on the outer side surface of the counterweight main body to fix the opening cover. The fixing method of the above-mentioned opening cover on the counterweight has the following problems: 1. The appearance is poor; 2. When opening, the buckle lock needs to be opened first to open the cover, resulting in an overly cumbersome urea filling operation process. At the same time, the cover buckle lock is easily damaged, increasing the subsequent maintenance cost; 3. The welding joint between the hinge and the cover plate or the flat plate on the counterweight is extremely prone to rust during daily use, affecting the service life of the hinge; 4. The opening cover protrudes from the upper flat plate of the counterweight and is easily damaged by collision during use. The existence of the above problems directly reduces the satisfaction of customers with the loader. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an opening cover structure of the counterweight of a loader. The opening cover structure is flush with the upper flat plate of the counterweight, which is not only beautiful but also can effectively avoid bumps; the opening cover uses the gravity method to seal the urea side filling port, making the urea filling operation simple and convenient without a buckle lock, reducing the processing cost and maintenance cost; the hinge is connected by an assembly method, and its connection part is not easily rusted.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an opening cover structure of the counterweight of a loader, including a counterweight main body, an L-shaped opening cover, a hinge, and a limiting mechanism. The counterweight main body includes a first upper flat plate and a first side vertical plate. A urea side filling port is opened at the perpendicular intersection of the first upper flat plate and the first side vertical plate. The L-shaped opening cover is arranged in the urea side filling port. The second upper flat plate of the L-shaped opening cover is hinged to the first upper flat plate through the hinge, and both movable plates of the hinge are located inside the counterweight main body. The limiting mechanism is arranged inside the first side vertical plate. When the limiting mechanism realizes the rotational limit of the second side vertical plate of the L-shaped opening cover, the upper plane of the first upper flat plate is flush with the upper plane of the second upper flat plate, and the outer side surface of the first side vertical plate is flush with the outer side surface of the second side vertical plate.

[0005] Preferably, the hinge includes a hinge shaft, a hinge flat plate, and an L-shaped hinge plate. The upper outer end of the upper flat plate of the L-shaped hinge plate is connected to the lower edge of the hinge shaft, and one end of the hinge flat plate is rotatably sleeved on the hinge shaft.

[0006] Further, a first fixing plate corresponding to the L-shaped hinge plate is provided at the lower part of the first upper flat plate, and a second fixing plate corresponding to the hinge flat plate is provided at the lower part of the second upper flat plate. The first fixing plate is fixedly connected to the L-shaped hinge plate by a bolt connection method, and the second fixing plate is fixedly connected to the hinge flat plate by a bolt connection method.

[0007] Further, the limiting mechanism includes a U-shaped plate. The lower part of the U-shaped plate is fixedly connected to the inner side wall of the first side vertical plate, and the two vertical plates of the U-shaped plate face the second side vertical plate.

[0008] Further, the lower part of the U-shaped plate is fixedly connected to the inner side wall of the first side vertical plate through a cushion plate, and a buffer rubber plate is provided on the side face of the vertical plate facing the second side vertical plate.

[0009] Further, a magnetic adsorption bracket is fixedly provided on the outer side of the U-shaped plate, and a neodymium magnet facing the second side vertical plate is provided at the upper part of the magnetic adsorption bracket. The neodymium magnet is used to realize the adsorption positioning of the second side vertical plate.

[0010] Further, after the neodymium magnet realizes the adsorption positioning of the second side vertical plate, the distance between the neodymium magnet and the second side vertical plate is L, and 2mm ≤ L ≤ 5mm.

[0011] Further, an opening handle is provided at the lower part of the outer side face of the second side vertical plate.

[0012] Further, two anti-collision rubber pads adjacent to the hinge are provided on the second upper flat plate.

[0013] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple and convenient for processing and manufacturing; under the combined action of the hinge and the limiting mechanism, the L-shaped opening cover plate realizes the capping of the urea side filling port by using the principle of gravity drop. Therefore, when filling urea, only the L-shaped opening cover plate needs to be directly lifted, making the urea filling operation convenient and fast. At the same time, without using a buckle lock structure, the manufacturing cost of the capping component of the urea side filling port is reduced, and it is convenient to carry out subsequent maintenance work; the second upper flat plate and the second side vertical plate of the L-shaped opening cover plate are flush with the first upper flat plate and the first side vertical plate of the balance iron respectively, making the appearance of the balance iron more neat and beautiful. At the same time, it can effectively avoid the problem of bumping; the hinged flat plate and the L-shaped hinged plate of the hinge are both connected to the corresponding connection positions by an assembly method. The assembly method has little damage to the paint surface, and then it is not easy for the corresponding connection positions to rust. At the same time, the hinged flat plate and the L-shaped hinged plate are both located inside the balance iron, which further reduces the rust probability at the hinged connection; the use of the buffer rubber pad can not only effectively reduce the closing vibration of the L-shaped opening cover plate, but also effectively prevent the vertical plate from colliding with the second side vertical plate, resulting in paint surface damage; after the L-shaped opening cover plate is opened, the isolation effect of the anti-collision rubber pad can effectively prevent the L-shaped opening cover plate from colliding with the first upper flat plate, and then effectively avoid the occurrence of paint surface damage. Brief Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some preferred embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

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

[0016] Figure 2 It is a side view of the interior of the overall structure of the present utility model;

[0017] Figure 3 It is a partial longitudinal sectional view of the present utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the hinge;

[0019] Figure 5 For Figure 1 The enlarged view at A in

[0020] Figure 6 For Figure 2 The enlarged view at B in

[0021] Figure 7For Figure 2 Enlarged view of position C in

[0022] In the figure: 1 balance iron main body, 11 first upper flat plate, 111 first fixed plate, 12 first side vertical plate, 2 L-shaped opening cover plate, 21 second upper flat plate, 211 second fixed plate, 22 second side vertical plate, 221 opening handle, 3 hinge, 31 hinge shaft, 32 hinge flat plate, 33 L-shaped hinge plate, 41 U-shaped plate, 411 vertical plate, 42 cushion plate, 43 buffer rubber plate, 5 magnetic adsorption bracket, 6 neodymium magnet, 7 anti-collision rubber pad. Specific embodiments

[0023] The following will combine specific embodiments and Figures 1 - 7 drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some preferred embodiments of the present invention, rather than all embodiments. Those skilled in the art can make similar deformations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0024] The present invention provides a structure for the opening cover plate of a loader balance iron (as Figure 1(as shown in the figure), including a balance weight body 1, an L-shaped opening cover plate 2, a hinge 3, and a limiting mechanism. The balance weight has been fully introduced in the background art. Therefore, here, the function and detailed structure of the balance weight body 1 will not be introduced in detail. The balance weight body 1 includes a first upper flat plate 11 and a first side vertical plate 12. In practical applications, the first upper flat plate 11 and the second side vertical plate 12 are vertically fixedly connected by welding. A urea side filling port is opened at the vertical intersection of the first upper flat plate 11 and the first side vertical plate 12. By using the urea side filling port, the opening of the urea tank can be smoothly opened, facilitating subsequent urea filling. The L-shaped opening cover plate 2 is arranged in the urea side filling port. The L-shaped opening cover plate 2 is an integral component and can be formed by bending a certain-sized plate. The second upper flat plate 21 of the L-shaped opening cover plate 2 is hingedly connected to the first upper flat plate 11 through the hinge 3, and both movable plates of the hinge 3 are located inside the balance weight body 1. In practical applications, by using the rotational connection support of the hinge 3, the rotation of the L-shaped opening cover plate 2 can be realized. To improve the rotational stability of the L-shaped opening cover plate 2, in this specific embodiment, two hinges 3 can be used simultaneously to realize the rotational connection between the second upper flat plate 21 and the first upper flat plate 11. The limiting mechanism is arranged inside the first side vertical plate 12 and is used to realize the downward rotation limit of the L-shaped opening cover plate 2. Under the combined action of the hinge 3 and the limiting mechanism, the L-shaped opening cover plate 2 covers the urea side filling port by using the principle of gravity descent. Therefore, when filling urea, only the L-shaped opening cover plate 2 needs to be directly lifted, making the urea filling operation convenient and fast. At the same time, without using a buckle structure, the manufacturing cost of the sealing component of the urea side filling port is reduced, and subsequent maintenance work is facilitated; when the limiting mechanism realizes the rotation limit of the second side vertical plate 22 of the L-shaped opening cover plate 2, the upper plane of the first upper flat plate 11 is flush with the upper plane of the second upper flat plate 21, and the outer side surface of the first side vertical plate 12 is flush with the outer side surface of the second side vertical plate 22. The first upper flat plate 11 is flush with the second upper flat plate 21, and the first side vertical plate 12 is flush with the second side vertical plate 22, which greatly improves the aesthetics of the entire balance weight after the L-shaped opening cover plate 2 covers the urea side filling port, and then facilitates improving the first good impression of customers on the loader.

[0025] On the basis of the above embodiment, the hinge 3 is used to realize the flush installation of the L-shaped opening cover plate 2 on the balance weight. The specific implementation manner of the hinge 3 is as follows: The hinge 3 includes a hinge shaft 31, a hinge flat plate 32, and an L-shaped hinge plate 33. The upper outer end of the upper flat plate of the L-shaped hinge plate 33 is connected to the lower edge of the hinge shaft 31. Specifically, the upper flat plate of the L-shaped hinge plate 33 is directly connected to the hinge shaft 31 in a fixed manner or is connected in a rotational manner. One end of the hinge flat plate 32 is rotatably sleeved on the hinge shaft 31.

[0026] On the basis of the above implementation, the specific implementation manner for the hinge 3 to be connected to the first upper flat plate 11 and the second upper flat plate 21 is as follows: A first fixing plate 111 corresponding to the L-shaped hinge plate 33 is provided at the lower part of the first upper flat plate 11, and a second fixing plate 211 corresponding to the hinge flat plate 32 is provided at the lower part of the second upper flat plate 21. The first fixing plate 111 is fixedly connected to the L-shaped hinge plate 33 by means of bolt connection, and the second fixing plate 211 is fixedly connected to the hinge flat plate 32 by means of bolt connection. Since the upper flat plate of the L-shaped hinge plate 33 is located below the hinge shaft 31, after the L-shaped hinge plate 33 is installed at the lower part of the first upper flat plate 11, it is convenient to eliminate the height difference between the second upper flat plate 21 and the first upper flat plate 11, so as to realize the flush distribution of the first upper flat plate 11 and the second upper flat plate 21. In practical applications, through holes for bolts to penetrate are respectively provided on the first fixing plate 111, the second fixing plate 211, the hinge flat plate 32 and the L-shaped hinge plate 33, which is then convenient for realizing the assembly connection of the hinge 3 with the corresponding first fixing plate 111 and second fixing plate 211 by bolts later. The hinge flat plate 32 and the L-shaped hinge plate 33 of the hinge 3 are both connected by an assembly method. The assembly method has little damage to the paint surface, and then it is not easy for the corresponding connection positions to rust. At the same time, the hinge flat plate 32 and the L-shaped hinge plate 33 are both located inside the balance weight, which further reduces the probability of rust at the hinge connection.

[0027] On the basis of the above embodiments, the specific implementation manner of the limiting mechanism is as follows: The limiting mechanism includes a U-shaped plate 41. The lower part of the U-shaped plate 41 is fixedly connected to the inner side wall of the first side vertical plate 12. The two vertical plates 411 of the U-shaped plate 41 face the second side vertical plate 22. During the process of the L-shaped opening cover plate 2 rotating and descending, when the second side vertical plate 22 contacts the vertical plate 411, the rotation limit of the L-shaped opening cover plate 2 is realized, and then the L-shaped opening cover plate 2 covers the urea side filling port. In order to effectively prevent the paint surface of the second side vertical plate 22 from being damaged when the second side vertical plate 22 contacts the vertical plate 411, here, the lower part of the U-shaped plate 41 is fixedly connected to the inner side wall of the first side vertical plate 12 through a cushion plate 42, and a buffer rubber plate 43 is provided on the side surface of the vertical plate 411 facing the second side vertical plate 22. The buffer rubber pad 43 is relatively soft, and when it contacts the second side vertical plate 22, it can prevent the paint surface of the second side vertical plate 22 from being damaged. At the same time, by using the shock absorption effect of the buffer rubber pad 43, the vibration when the L-shaped opening cover plate 2 is closed can be reduced.

[0028] After using the vertical plate 411 to seal the urea side filling opening with the L-shaped opening cover plate 2, in order to improve the sealing stability of the existing L-shaped opening cover plate 2, here, a magnetic adsorption bracket 5 is fixedly arranged on the outer side of the U-shaped plate 41, and a neodymium magnet 6 opposite to the second side vertical plate 22 is arranged on the upper part of the magnetic adsorption bracket 5. The neodymium magnet 6 is used to realize the adsorption and positioning of the second side vertical plate 22. Specifically, the magnetic adsorption bracket 5 has an inverted T-shaped structure. A through hole is arranged on the upper part of the magnetic adsorption bracket 5, and a counterbore through hole is arranged in the middle of the neodymium magnet 6. A bolt passes through the counterbore through hole and the through hole on the upper part of the magnetic adsorption bracket 5. By tightening the nut of the bolt, the fixed installation of the neodymium magnet 6 on the magnetic adsorption bracket 5 is realized. In order to prevent the neodymium magnet 6 from contacting and colliding with the second side vertical plate 22 and damaging the paint surface of the second side vertical plate 22, here, when the neodymium magnet 6 realizes the adsorption and positioning of the second side vertical plate 22, the distance between the neodymium magnet 6 and the second side vertical plate 22 is L (2 mm ≤ L ≤ 5 mm), which is 2 mm. By using the magnetic force exerted by the neodymium magnet 6 on the second side vertical plate 22, the stable sealing of the urea side filling opening by the L-shaped opening cover plate 2 is realized.

[0029] To facilitate the smooth opening of the L-shaped opening cover plate 2, here, an opening handle 221 is arranged on the lower part of the outer side surface of the second side vertical plate 22.

[0030] Further, after the L-shaped opening cover plate 2 is turned up and fully opened, in order to prevent the second upper flat plate 21 from colliding with the first upper flat plate 11 and damaging the paint surface, here, two anti-collision rubber pads 7 adjacent to the hinge 3 are arranged on the second upper flat plate 21. There is a height difference between the upper plane of the anti-collision rubber pad 7 and the upper plane of the second upper flat plate 21. After the L-shaped opening cover plate 2 is turned up and fully opened, the anti-collision rubber pad 7 realizes the isolation between the first upper flat plate 11 and the second upper flat plate 21, thereby effectively avoiding the occurrence of the situation where the first upper flat plate 11 and the second upper flat plate 21 contact and collide to cause paint surface damage.

[0031] In the present utility model, "upper", "lower", "front", "rear", "left", and "right" are all relative positions adopted for the convenience of describing the positional relationship, so they cannot be understood as absolute positions to limit the protection scope.

[0032] Except for the technical features described in the specification, they are all known technologies to those skilled in the art.

[0033] The preferred embodiments and examples of the present utility model have been described in detail above in conjunction with the drawings. However, the present utility model is not limited to the above embodiments and examples. For those of ordinary skill in the art in this technical field, without departing from the concept of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A structure of an opening cover plate for a counterweight of a loader, including a counterweight main body. The counterweight main body includes a first upper flat plate and a first side vertical plate. A urea side filling port is opened at the perpendicular intersection of the first upper flat plate and the first side vertical plate. It is characterized in that, The opening cover plate structure further includes an L-shaped opening cover plate, a hinge, and a limiting mechanism. The L-shaped opening cover plate is disposed within the urea side filling port. The second upper flat plate of the L-shaped opening cover plate is hingedly connected to the first upper flat plate through the hinge, and both movable plates of the hinge are located inside the balance weight body. The limiting mechanism is disposed inside the first side vertical plate. When the limiting mechanism realizes the rotational limit of the second side vertical plate of the L-shaped opening cover plate, the upper plane of the first upper flat plate is flush with the upper plane of the second upper flat plate, and the outer side surface of the first side vertical plate is flush with the outer side surface of the second side vertical plate.

2. The opening cover structure of the balance weight of a wheel loader according to claim 1, wherein, The hinge includes a hinge shaft, a hinged flat plate, and an L-shaped hinged plate. The upper outer end of the upper flat plate of the L-shaped hinged plate is connected to the lower edge of the hinge shaft, and one end of the hinged flat plate is rotatably sleeved on the hinge shaft.

3. The opening cover structure of the counterweight of a loader according to claim 2, characterized in that A first fixing plate corresponding to the L-shaped hinged plate is provided at the lower part of the first upper flat plate, and a second fixing plate corresponding to the hinged flat plate is provided at the lower part of the second upper flat plate. The first fixing plate is fixedly connected to the L-shaped hinged plate by a bolt connection method, and the second fixing plate is fixedly connected to the hinged flat plate by a bolt connection method.

4. A structure of an opening cover plate for a counterweight of a loader according to claim 3, characterized in that, The limiting mechanism includes a U-shaped plate. The lower part of the U-shaped plate is fixedly connected to the inner side wall of the first side vertical plate, and the two vertical plates of the U-shaped plate face the second side vertical plate.

5. The opening cover structure of a loader balance weight according to claim 4, characterized in that, The lower part of the U-shaped plate is fixedly connected to the inner side wall of the first side vertical plate through a cushion plate, and a buffer rubber plate is provided on the side surface of the vertical plate facing the second side vertical plate.

6. The opening cover structure of the counterweight of a loader according to claim 4 or 5, characterized in that, A magnetic adsorption bracket is fixedly provided on the outer side of the U-shaped plate, and a neodymium magnet facing the second side vertical plate is provided at the upper part of the magnetic adsorption bracket. The neodymium magnet is used to realize the adsorption positioning of the second side vertical plate.

7. The opening cover structure of the balance weight of a wheel loader according to claim 6, characterized in that, After the neodymium magnet realizes the adsorption positioning of the second side vertical plate, the distance between the neodymium magnet and the second side vertical plate is L, where 2 mm ≤ L ≤ 5 mm.

8. The opening cover structure of the counterweight of a wheel loader according to claim 7, characterized in that, An opening handle is provided at the lower part of the outer side surface of the second side vertical plate.

9. The opening cover structure of the counterweight of a loader according to claim 8, characterized in that, Two anti-collision rubber pads adjacent to the hinge are provided on the second upper flat plate.

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