Maintenance cover plate, unloading oil cylinder and shuttle car

Abstract

The utility model relates to the technical field of oil cylinder overhauling, in particular to an overhauling cover plate, a discharging oil cylinder and a shuttle car. The cover turning mechanism is arranged above the mounting plate; the oil cylinder mounting seat is arranged below the mounting plate; the oil cylinder mounting seat is used for mounting the unloading oil cylinder; the cover turning mechanism comprises a base which is fixedly connected with the mounting plate; the oil filling port is formed in the base; the two first lug plates are arranged on the two sides of the oil filling port in parallel; the cover plate is hinged to the first lug plate through a pin shaft and covers the oil filling port. Lubricating oil is injected into the discharging oil cylinder by turning over the cover plate, the problem that the cover plate cannot be opened due to bolt corrosion is solved, and maintenance is facilitated. And meanwhile, the oil cylinder mounting seat is integrated on the mounting plate, so that the mounting space of the unloading oil cylinder is saved.

Description

Technical Field

[0001] This application relates to the field of hydraulic cylinder maintenance technology, and in particular to a maintenance cover plate, a discharge hydraulic cylinder and a shuttle car. Background Technology

[0002] Shuttle cars are mainly used in mining fields such as coal mines and metal mines to transport materials such as ore and coal. Unloading is achieved by extending and retracting hydraulic cylinders to move the cargo box and thus dump the material. Due to the special unloading method, the unloading cylinders require regular inspection, maintenance, and lubrication.

[0003] The existing technology involves directly separating the oil inlet from the coal by bolting a cover plate. However, due to the special environment of coal transportation, such as humidity and dust, the bolts may corrode, making it impossible to disassemble the cover plate for maintenance. This makes it impossible to maintain the unloading cylinder and sometimes even requires destructive methods to disassemble the cover plate, which seriously affects the maintenance of the unloading cylinder. Utility Model Content

[0004] This application aims to at least solve one of the technical problems that, due to manufacturing and assembly errors, the actual distances from the rope ends on the left and right sides of the baffle to the frame fixing points are not the same, which leads to different tensile forces on the left and right sides of the wire rope, thus affecting the service life of the wire rope.

[0005] Therefore, this application provides a maintenance cover plate, which allows for the addition of lubricating oil to the unloading cylinder by flipping the cover plate, solving the problem of the cover plate being unable to be opened due to bolt corrosion, and facilitating maintenance; at the same time, the cylinder mounting base is integrated into the mounting plate, saving installation space for the unloading cylinder.

[0006] This application also provides a discharge cylinder and a shuttle car including the above-mentioned inspection cover plate.

[0007] An inspection cover plate according to a first aspect embodiment of this application includes: a mounting plate, which is rectangular; a flip-top mechanism disposed above the mounting plate; and a hydraulic cylinder mounting seat disposed below the mounting plate. The hydraulic cylinder mounting seat is used to install a discharge hydraulic cylinder. The flip-top mechanism includes: a base, which is fixedly connected to the mounting plate; an oil filling port disposed on the base; and two first ear plates, which are arranged parallel to each other on both sides of the oil filling port. The cover plate is hinged to the first ear plates by a pin and covers the oil filling port.

[0008] Optionally, the cylinder mounting base includes: two second ear plates, which are arranged parallel to each other below the mounting plate; and a mounting shaft, which is arranged between the two second ear plates; the mounting shaft is used to mount the unloading cylinder.

[0009] Optionally, the cylinder mounting base also includes: a connecting plate, disposed on one side of the second ear plate; bolts, disposed on the connecting plate; the connecting plate and the bolts form a connecting plate pin structure for fixing the connecting end of the unloading cylinder.

[0010] Optionally, the bolts are equipped with washers.

[0011] Optionally, the cover plate is interference-fitted with the two first lugs.

[0012] Optionally, the cover plate has a V-shaped structure, with the opening of the V-shaped structure close to the filler neck.

[0013] Optionally, the height of the first ear plate is greater than the height of the V-shaped structure.

[0014] Optionally, the cover plate has an opening notch.

[0015] The second aspect of this application provides a discharge cylinder equipped with the aforementioned maintenance cover. Since the maintenance cover has the aforementioned technical effects, the discharge cylinder equipped with the maintenance cover should also have the corresponding technical effects.

[0016] The third aspect of this application provides a shuttle car equipped with the aforementioned unloading cylinder. Since the unloading cylinder has the aforementioned technical effects, the shuttle car equipped with the unloading cylinder should also have the corresponding technical effects.

[0017] One of the above technical solutions has at least the following advantages or beneficial effects:

[0018] The maintenance cover plate, unloading cylinder, and shuttle car provided in this application embodiment include: a rectangular mounting plate; a flip-top mechanism disposed above the mounting plate; and a cylinder mounting seat disposed below the mounting plate. The cylinder mounting seat is used to install the unloading cylinder. The flip-top mechanism includes: a base fixedly connected to the mounting plate; an oil filling port disposed on the base; and two first ear plates arranged parallel to each other on both sides of the oil filling port. The cover plate is hinged to the first ear plates via a pin and covers the oil filling port. Lubricating oil is added to the unloading cylinder by flipping the cover plate, solving the problem of the cover plate being unable to open due to bolt corrosion, thus facilitating maintenance. Simultaneously, the cylinder mounting seat is integrated into the mounting plate, saving installation space for the unloading cylinder. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This illustration shows one of the structural schematic diagrams of an inspection cover provided in an embodiment of this application;

[0021] Figure 2 This is a second schematic diagram of the structure of an inspection cover provided in an embodiment of this application;

[0022] Figure 3 A schematic diagram of the flip-top mechanism provided in an embodiment of this application is shown;

[0023] Figure 4 A schematic diagram of the structure of the hydraulic cylinder mounting base provided in an embodiment of this application is shown;

[0024] Figure 5 A schematic diagram of a maintenance cover plate in operation, provided in an embodiment of this application, is shown.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Mounting plate, 2. Flip-top mechanism, 21. Base, 22. Oil filler port, 23. First ear plate, 24. Cover plate, 241. Opening notch, 25. Pin, 3. Cylinder mounting seat, 31. Second ear plate, 32. Mounting shaft, 33. Connecting plate, 34. Bolt, 35. Washer. Detailed Implementation

[0027] To better explain and facilitate understanding of this application, a detailed description of the application is provided below with reference to the accompanying drawings and specific embodiments. The directional terms such as "upper," "lower," "inner," and "outer" mentioned herein are used in conjunction with... Figure 1 The orientation is used as a reference. The position of the cover plate 24 relative to the cylinder mounting seat 3 is defined as "upper"; the position of the cover plate 24 relative to the first ear plate 23 is defined as "inner".

[0028] As mentioned above, South Africa's coal production over the past five years is approximately 240 million tons per year, with an average production of approximately 230 million tons per year over the past three years. The main mining method is room-and-pillar mining, and the coal is transported by shuttle cars. JOYGLOBAL, a US heavy mining company, uses four bolts to attach the shuttle car's unloading cylinder access cover to the moving cargo box, with a refueling port cover in the middle, connected by threads.

[0029] However, due to the special environment of coal transportation, such as humidity and dust, the bolts may rust, making it impossible to remove the inspection cover plate. This makes it impossible to inspect and maintain the unloading cylinder. Sometimes, destructive methods are even required to remove the inspection cover plate, which seriously affects the maintenance of the unloading cylinder.

[0030] To address at least one of the technical problems existing in the prior art or related technologies, this application provides a maintenance cover plate, a discharge cylinder, and a shuttle car. The maintenance cover plate includes: a rectangular mounting plate; a flip-top mechanism disposed above the mounting plate; and a cylinder mounting seat disposed below the mounting plate. The cylinder mounting seat is used to mount the discharge cylinder. The flip-top mechanism includes: a base fixedly connected to the mounting plate; a filler port disposed on the base; and two first ear plates arranged parallel to each other on both sides of the filler port. The cover plate is hinged to the first ear plates via a pin and covers the filler port. Lubricating oil is added to the discharge cylinder by flipping the cover plate, solving the problem of the cover plate being unable to open due to bolt corrosion, thus facilitating maintenance. Simultaneously, the cylinder mounting seat is integrated into the mounting plate, saving installation space for the discharge cylinder.

[0031] The following description, with reference to the accompanying drawings, describes some embodiments of the access cover provided in this application.

[0032] See Figures 1 to 5 The first aspect of this application provides a maintenance cover plate, comprising: a mounting plate 1, which is rectangular; a flip-top mechanism 2, disposed above the mounting plate 1; and a hydraulic cylinder mounting seat 3, disposed below the mounting plate 1. The hydraulic cylinder mounting seat 3 is used to install a discharge hydraulic cylinder. The flip-top mechanism 2 comprises: a base 21, which is fixedly connected to the mounting plate 1; an oil filling port 22, disposed on the base 21; two first ear plates 23, which are arranged parallel to each other on both sides of the oil filling port 22; and a cover plate 24, which is hinged to the first ear plates 23 by a pin 25 and covers the oil filling port 22.

[0033] Mounting plate 1 is rectangular, which facilitates installation and provides excellent stability, allowing for easy alignment and connection with the unloading cylinder housing. Bolts are located at the four corners of mounting plate 1, enabling detachable connection to the unloading cylinder housing.

[0034] like Figure 1 and Figure 2As shown, the flip-top mechanism 2 is used to flip the cover plate 24 to block or open the oil filler port 22. The base 21 is set on the mounting plate 1 and can be fixed to the mounting plate 1 by welding or integral molding. The base 21 can stably support the upper components and play a buffering and shock-absorbing role, absorbing the vibration and impact generated during the operation of the equipment and preventing the mounting plate 1 from deforming. The first ear plate 23, the cover plate 24, and the pin 25 together constitute an openable and closable oil filler port cover structure. The main function of the first ear plate 23 is to serve as a support and connection point for installing and fixing the cover plate 24. The cover plate 24 is set between the two first ear plates 23 to cover the oil filler port 22. When lubricating oil needs to be added, the cover plate 24 can be opened to expose the oil filler port 22; when lubricating oil does not need to be added, the cover plate 24 is closed to protect the oil filler port 22 from contamination and damage. The pin 25 passes through the pre-drilled holes in the cover plate 24 and the first ear plate 23, hinges the cover plate 24 to the first ear plate 23, allowing the cover plate 24 to rotate around the pin 25, thus achieving the opening and closing action. Lubricating oil for the unloading cylinder is added by flipping the cover plate, solving the problem of the cover plate being unable to open due to bolt corrosion, and facilitating maintenance.

[0035] like Figure 5 As shown, the cylinder mounting base 3 has a mounting plate 1 on the other side away from the flip-top mechanism 2 for mounting the unloading cylinder. This design can save the installation space of the unloading cylinder.

[0036] In one illustrative embodiment, such as Figure 4 As shown, the cylinder mounting base 3 includes: two second ear plates 31, which are arranged in parallel below the mounting plate 1; and a mounting shaft 32, which is arranged between the two second ear plates 31. The mounting shaft 32 is used to mount the unloading cylinder.

[0037] The cylinder mounting base 3 is a component specifically designed for mounting the unloading cylinder. It mainly consists of two second ear plates 31 and a mounting shaft 32. The second ear plates 31 provide sufficient strength and stability to support the unloading cylinder. The mounting shaft 32 is designed to match the mounting interface of the unloading cylinder to ensure that the unloading cylinder can be firmly mounted on the mounting shaft 32 and remain stable during operation.

[0038] In one illustrative embodiment, the cylinder mounting base 3 further includes: a connecting plate 33 disposed on one side of the second ear plate 31; and bolts 34 disposed on the connecting plate 33. The connecting plate 33 and the bolts 34 form a connecting plate pin structure for fixing the connecting end of the unloading cylinder. The cooperation between the connecting plate 33 and the bolts 34 achieves a unloading cylinder mounting structure that is both stable and easy to install. This design not only improves the reliability and durability of the device but also facilitates the installation and disassembly of the unloading cylinder. At the same time, the introduction of the connecting plate pin structure also enhances the connection strength and stability between the cylinder mounting base 3 and the unloading cylinder.

[0039] In one illustrative embodiment, a washer 35 is provided on the bolt 34. The washer 35 can increase the contact area between the bolt 34 and the connecting plate 33, thereby dispersing the pressure generated during bolt tightening and preventing damage caused by excessive local pressure; the thickness of the washer 35 can adjust the gap between the unloading cylinder connection end and the connecting plate 33, thereby ensuring the correct installation position and tightening force.

[0040] In one illustrative embodiment, the cover plate 24 is interference-fitted with the two first ear plates 23. The interference fit utilizes the fact that the width of the cover plate 24 is slightly larger than the distance between the two first ear plates 23. When the cover plate 24 is closed, the interference between the cover plate 24 and the two first ear plates 23 makes them tightly joined together, making it difficult for them to move relative to each other. At the same time, the clamping force generated by the interference fit ensures that there are no gaps between the cover plate 24 and the first ear plates 23, which can achieve a good sealing effect and effectively prevent impurities such as coal slag from entering the oil filler port 22.

[0041] In one illustrative embodiment, such as Figure 3 As shown, the cover plate 24 has a V-shaped structure, with the opening of the V-shape close to the oil filler port 22. This design prevents the cover plate 24 from deforming. The V-shape increases its stiffness by changing the cross-sectional shape of the cover plate 24. Stiffness is a material's ability to resist deformation; the greater the stiffness, the less likely the material is to deform under stress. The inclined side of the V-shape acts as a reinforcing rib, effectively improving the overall stiffness of the cover plate 24. When the cover plate 24 is subjected to external forces, such as coal falling from a mine, the V-shape can distribute the stress over a wider area, reducing the concentration of local stress and thus lowering the risk of deformation due to excessive stress.

[0042] In one illustrative embodiment, the height of the first ear plate 23 is greater than the height of the V-shaped structure. This design ensures that the cover plate 24 is completely contained within the two first ear plates 23 when closed. Due to the greater height of the first ear plates 23, they provide more robust support for the cover plate 24, increasing the overall structure's impact resistance. At the same time, the fact that the cover plate 24 is completely contained within the two first ear plates 23 also enhances the sealing effect, eliminating gaps on both sides of the cover plate 24.

[0043] In one illustrative embodiment, the cover plate 24 is provided with an opening notch 241. The opening notch 241 provides a point where the user can easily apply force, making it easier for the cover plate 24 to be opened. Utilizing the lever principle, by using the opening notch 241 as a fulcrum, the user can generate a large opening torque with a small force.

[0044] Based on the maintenance cover plate provided in the above embodiments, a second aspect of this application also provides a discharge cylinder, including the maintenance cover plate of the above embodiments. Since the discharge cylinder provided in this embodiment has the maintenance cover plate provided in any of the above embodiments, it possesses all the beneficial effects of the maintenance cover plate provided in any of the above embodiments, which will not be elaborated further here.

[0045] Based on the unloading cylinder provided in the above embodiments, a third aspect of this application also provides a shuttle car, including the unloading cylinder of the above embodiments. Since the shuttle car provided in this embodiment has the unloading cylinder provided in any of the above embodiments, it possesses all the beneficial effects of the unloading cylinder provided in any of the above embodiments, which will not be elaborated further here.

[0046] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "exemplary model," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0050] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An inspection cover, characterized in that, include: Mounting plate (1), wherein the mounting plate (1) is rectangular; A flip-top mechanism (2) is disposed above the mounting plate (1); A cylinder mounting base (3) is disposed below the mounting plate (1); the cylinder mounting base (3) is used to install the unloading cylinder; The flip-top mechanism (2) includes: The base (21) is fixedly connected to the mounting plate (1); A filler neck (22) is provided on the base (21); Two first ear plates (23) are arranged parallel to each other on both sides of the oil filler port (22); The cover plate (24) is hinged to the first ear plate (23) by a pin (25), and the cover plate (24) covers the oil filler port (22).

2. The inspection cover plate as described in claim 1, characterized in that, The cylinder mounting base (3) includes: Two second ear plates (31) are arranged parallel to each other below the mounting plate (1); The mounting shaft (32) is disposed between the two second ear plates (31); the mounting shaft (32) is used to mount the unloading cylinder.

3. The inspection cover plate as described in claim 2, characterized in that, The cylinder mounting base (3) also includes: A connecting plate (33) is disposed on one side of the second ear plate (31); Bolts (34) are provided on the connecting plate (33); The connecting plate (33) and the bolt (34) form a connecting plate pin structure for fixing the connecting end of the unloading cylinder.

4. A maintenance cover plate as described in claim 3, characterized in that, The bolt (34) is provided with a washer (35).

5. A maintenance cover plate as described in claim 1, characterized in that, The cover plate (24) is interference-fitted with the two first ear plates (23).

6. A maintenance cover plate as described in claim 1, characterized in that, The cover plate (24) has a V-shaped structure, and the opening of the V-shaped structure is close to the oil filling port (22).

7. A maintenance cover plate as described in claim 6, characterized in that, The height of the first ear plate (23) is greater than the height of the V-shaped structure.

8. A maintenance cover plate as described in claim 1, characterized in that, The cover plate (24) is provided with an opening notch (241).

9. A discharge cylinder, characterized in that, include: An inspection cover as described in any one of claims 1-8.

10. A shuttle car, characterized in that, include: A discharge cylinder as described in claim 9.

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