Double-opening side door of mining excavator

Abstract

The utility model discloses a double-opening side door of a mining excavator, which belongs to the technical field of mining mechanical equipment and comprises a mounting framework and door plates rotationally connected to two sides of the mounting framework respectively. The door plate is closed inwards to be tightly attached to the outer surface of the installation framework, and a certain space is formed between the door plate and the installation framework when the door plate is opened outwards. The pump compartment door is designed into the double-opening side door, the weight of a single door plate is reduced, the door plates on the two sides of the installation framework are fixed through the hinges, the overall structural strength of the compartment door is enhanced, the weight of the door plates is shared through the multiple hinges, the abrasion problem of lock catches and other connecting pieces can be solved, and the service life of the compartment door is prolonged. Meanwhile, through the embedded limiting effect of the limiting plate on the door plate and the limiting block on the mounting framework, the door plate is prevented from moving or shaking, and the overall stability of the cabin door is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining mechanical equipment, and in particular relates to a double-opening side door of a mining excavator. Background Art

[0002] Mining excavators are important and indispensable equipment in modern mining production. The pump room door of mining excavators is mainly used to protect the key components inside the pump room. In the harsh operating environment of the mine, it can effectively prevent external debris from entering the pump room and ensure the normal operation of key components.

[0003] Traditional excavator pump hatches usually adopt a single-door design. In the harsh working environment of mines, where equipment materials need to have high strength and excellent wear resistance, the weight of the single-side door is heavy, and the side door lock and various connecting parts are prone to damage. At the same time, the single-side door panel is only fixed by one side hinge, and its structural strength and stability are poor, which is difficult to meet the requirements of a high-intensity working environment. When repairing and maintaining the internal components of the pump room, the single-side door requires a high space for the operator, making repair and maintenance work relatively difficult and affecting work efficiency. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the utility model provides a double-opening side door of a mining excavator, which enhances the overall structural strength and stability of the pump room door.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A double-opening side door of a mining excavator comprises a mounting frame and door panels rotatably connected on both sides of the mounting frame; the door panels are tightly fitted with the outer surface of the mounting frame when closed inwards, and a certain space is formed between the door panels and the mounting frame when opened outwards.

[0007] According to a further technical solution, the mounting frame includes an upper cross beam, both ends of the upper cross beam are respectively fixedly connected to side beams, the bottom end of the upper cross beam at the length center is fixedly connected to an axle beam, and lower cross beams are respectively fixedly connected between the axle beam and the side beams on both sides to form a rectangular frame.

[0008] A further technical solution is that combination blocks are fixed on both sides of the axle beam below the upper cross beam, combination blocks are fixed on both sides of the axle beam above the lower cross beam, and a locking plate is fixed on the outer surface of the axle beam at a certain distance from the top of the axle beam, and the locking plate is arranged between the upper and lower end combination blocks.

[0009] According to a further technical solution, the combination block comprises a fixed block, an anti-collision block is fixedly provided on the front side of the fixed block, one side of the fixed block is tightly fixed to the axle beam, and a limit block is fixedly provided on the other side of the fixed block.

[0010] According to a further technical solution, the anti-collision block outer shell is provided with a rubber sleeve.

[0011] According to a further technical solution, the limit block is a sideways U-shaped structure, and a groove of the limit block is engaged with a limit plate fixedly arranged on the door panel.

[0012] According to a further technical solution, the lock plate protrudes on both sides beyond the width of the axle beam and is locked with the lock pin of the door lock.

[0013] A further technical solution is that the door panel includes a panel, an upper cap is fixedly provided on the upper end of the inner side of the panel, a bottom cap is fixedly provided on the lower end of the inner side of the panel, a door lock bar is fixedly provided on one side of the inner side of the panel, a hinge bar is fixedly provided on the other side of the inner side of the panel, a door cap is fixedly provided between the door lock bar and the hinge bar, and the door cap is provided at the height center of the panel.

[0014] According to a further technical solution, a hinge is fixedly provided on one side of the hinge stile close to the connection between the door panel and the side beam.

[0015] According to a further technical solution, a limiting member is fixedly provided on the outer side of the door cover, a sliding groove is provided inside the limiting member, one end of a limiting pull rod is slidably connected in the sliding groove, and the other end of the limiting pull rod is fixed on the side beam.

[0016] Beneficial effects of the utility model:

[0017] The utility model proposes a double-opening side door for a mining excavator, in which the pump room door is designed as a double-opening side door, which reduces the weight of a single door panel, and fixes the door panels on both sides by hinges on both sides of the mounting frame, thereby enhancing the overall structural strength of the door. By sharing the weight of the door panels by multiple hinges, the wear problem of the lock and other connecting parts can be solved, and the service life of the door can be extended. At the same time, the interlocking limiting effect of the limiting plate on the door panel and the limiting block on the mounting frame can prevent the door panel from moving or shaking, thereby enhancing the overall stability of the door. And by using the limiting pull rod between the door panel and the mounting frame, it is prevented that the door panel is opened at an excessive angle, thereby preventing the door panel from being damaged by bumping.

[0018] The double-side door panels of the utility model can be opened and closed independently, the operation is more flexible, and a larger space is provided for the repair and maintenance of the components in the pump room, thereby improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 This is an overall structural diagram of the double-opening side doors of a mining excavator according to an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the inner structure of a door panel according to an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the outer structure of a door panel according to an embodiment of the utility model;

[0023] Figure 4 This is an overall schematic diagram of a mining excavator with double side doors installed on a mining excavator according to an embodiment of the utility model.

[0024] Among them, 1-upper crossbeam, 2-side beam, 3-axis beam, 4-lower crossbeam, 5-fixed block, 6-anti-collision block, 7-limit block, 8-lock plate, 9-pull rod mounting seat, 10-limit pull rod, 11-door panel, 12-upper cover, 13-door lock stile, 14-hinge stile, 15-bottom cover, 16-door cover, 17-limit plate, 18-door lock, 19-lock pin, 20-limiting piece, 21-hinge, 22-connecting pin, 23-rotating arm, 24-fixed seat, 25-panel. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] See also Figure 1 As shown, an embodiment of the utility model provides a double-opening side door of a mining excavator, including a mounting frame and door panels 11 rotatably connected on both sides of the mounting frame; the door panel 11 is closed inwardly and fits tightly against the outer surface of the mounting frame, and a certain space is formed between the door panel 11 and the mounting frame when it is opened outwardly.

[0027] In this embodiment, if Figure 1 As shown, the mounting frame includes an upper cross beam 1, both ends of which are fixedly connected to side beams 2, the bottom end of the upper cross beam 1 at the length center is fixedly connected to an axle beam 3, and the axle beam 3 is fixedly connected to the side beams 2 on both sides with lower cross beams 4 to form a rectangular frame.

[0028] The mounting frame is embedded in the opening of the pump room of the mining excavator. The inner side of the pump room opening is tightly fixed to the outer periphery of the mounting frame, ensuring a firm connection between the mounting frame and the pump room, enhancing the stability of the mounting frame structure, and effectively preventing the door body from loosening or shifting due to vibration or external force.

[0029] Specifically, Figure 1As shown, the top end of the axial beam 3 is fixedly connected to the bottom end of the upper cross beam 1, the bottom end of the axial beam 3 is fixedly connected to the pump room frame, the two sides of the axial beam 3 at a certain distance from the bottom end are respectively fixedly connected to the opposite sides of the lower cross beam 4, the other opposite sides of the lower cross beam 4 are respectively fixedly connected to the side beams 2 on both sides, the top ends of the side beams 2 on both sides are respectively fixedly connected to the upper part of the pump room frame, and the bottom ends of the side beams 2 on both sides are respectively fixedly connected to the lower part of the pump room frame.

[0030] It should be noted that the pump room frame is a component structure of the pump room on the mining excavator, which does not belong to the protection content of this application. It can be realized by using the existing frame structure. Those skilled in the art are able to know its specific composition and positional relationship, so it will not be elaborated here.

[0031] Combination blocks are fixed on both sides of the axle beam 3 below the upper cross beam 1, and combination blocks are fixed on both sides of the axle beam 3 above the lower cross beam 4. A lock plate 8 is fixed on the outer surface of the axle beam 3 at a certain distance from the top of the axle beam 3, and the lock plate 8 is arranged between the upper and lower combination blocks. The lock plate 8 and the combination block each have corresponding functions, and together enhance the safety and practicality of the double-opening side door.

[0032] Specifically, the combined block includes a fixed block 5, on the front side of which an anti-collision block 6 is fixed, one side of the fixed block 5 is tightly fixed to the axle beam 3, and the other side of the fixed block 5 is fixed with a limit block 7. The anti-collision block 6 is a cylindrical structure, with a rubber sleeve on the outside, which plays an anti-collision role. When the door panel 11 is closed, it prevents the door panel 11 from directly hitting the installation frame. The rubber material with good shock absorption performance is used, which can effectively absorb the impact force during the collision and reduce the damage to the door panel 11 caused by the collision; at the same time, the anti-collision block 6 also plays a tightening role. When the door panel 11 is in a closed state, it can effectively prevent the door panel 11 from shaking or deforming when it is impacted by external force, enhance the stability and safety of the door panel 11, and can also reduce the gap between the door panel 11 and the surrounding structure to prevent debris from entering the pump room. The limit block 7 is a sideways U-shaped structure with its groove facing the outside of the pump cabin. The groove can be adapted to fit with the limit plate 17 fixedly arranged at the corresponding position of the door panel 11, and is used to achieve limit fixation when the door panel 11 is locked. The limit block 7 plays a limiting role to ensure that the door panel 11 is in the correct position when locked, prevents the door panel 11 from moving or shaking, ensures the sealing of the pump cabin, and prevents external substances from entering the interior of the pump cabin.

[0033] Specifically, the lock plate 8 is a rectangular plate, and its two sides protrude beyond the width of the axle beam 3, and can be locked with the lock pin 19 of the door lock 18 to ensure the closure and fixation of the pump room side door, avoid the excavator from accidentally opening the pump room side door due to vibration during operation, and prevent external substances from entering the pump room and damaging internal devices.

[0034] A tie rod mounting seat 9 is fixedly provided on one side of the side beam 2 facing the axle beam 3 , and is used for fixing and mounting the limiting tie rod 10 .

[0035] Preferably, the upper cross beam 1, lower cross beam 4, side beam 2 and axle beam 3 are all rectangular steel tubes, and Q355B low-alloy high-strength structural steel can be selected. To adapt to other working environments, technical personnel in this field can replace the material according to actual conditions, and this application does not make specific limitations.

[0036] The mounting frame is at a certain distance from the edge of the pump room opening when fixedly installed, so that the door panel 11 can accurately fit the edge of the opening when closed, ensuring that the door panel 11 fits tightly with the edge of the opening.

[0037] It should be noted that Figure 1 The other structures are the excavator pump room structure and other components of the excavator body, which do not belong to the protection scope of the present application and are existing structural components. The display of other structures is to clearly show the assembly status of the double-opening side doors of the mining excavator of this embodiment, so as to facilitate technical personnel in this field to understand the scheme of this embodiment.

[0038] In this embodiment, if Figure 2 As shown, the door panel 11 includes a panel 25, an upper cap 12 is fixedly provided at the upper end of the inner side of the panel 25, a bottom cap 15 is fixedly provided at the lower end of the inner side of the panel 25, a door lock 18 stile 13 is fixedly provided at one side of the inner side of the panel 25, a hinge 21 stile 14 is fixedly provided at the other side of the inner side of the panel 25, a door cap 16 is fixedly provided between the door lock 18 stile 13 and the hinge 21 stile 14, and the door cap 16 is provided at the height center of the panel 25. Among them, the upper cap 12, the bottom cap 15 and the door cap 16 are all horizontal components, and the door lock 18 stile 13 and the hinge 21 stile 14 are vertical components, which together constitute the basic frame of the door panel 11, enhance the stability and strength of the door panel 11, and also provide installation positions for components such as the door lock 18 and the hinge 21.

[0039] Preferably, the panel can be made of cold-rolled sheet or St12 cold-rolled steel. The upper cover 12, the bottom cover 15 and the door cover 16, as well as the door lock 18, the stile 13 and the hinge 21, the stile 14 are all rectangular plates, which can be made of steel plates, and Q355B low-alloy high-strength structural steel can be used. To adapt to other working environments, those skilled in the art can replace the material according to the actual situation, and this application does not make specific restrictions.

[0040] Specifically, the door lock 18 stile 13 is respectively fixedly provided with limit plates 17 at a certain distance from the top and a certain distance from the bottom, and the position setting of the limit plates 17 must ensure that the limit plates 17 can be embedded in the limit blocks 7 when the door panel 11 is in the closed state; that is, the limit plates 17 on the upper and lower sides of the door lock 18 stile 13 match the positions of the limit blocks 7 on the upper and lower sides of the axle beam 3, and the positions of the limit plates 17 and the limit blocks 7 match, so that when the door panel 11 is in the closed state, the limit plates 17 are embedded in the limit blocks 7 to achieve the limiting fixation of the door panel 11, ensuring that the door panel 11 is in the correct position when locked, preventing the door panel 11 from moving or shaking, ensuring the sealing of the pump cabin, and preventing external substances from entering the pump cabin.

[0041] A door lock 18 is fixedly provided below the limit plate 17. The position of the door lock 18 is set to ensure that the lock pin 19 on the door lock 18 can be rotated and stuck in the protruding part of the side of the lock plate 8 when the door panel 11 is in the closed state, so as to achieve the locking of the door panel 11 and ensure the closure and fixation of the pump room side door.

[0042] Specifically, a hinge 21 is fixedly provided on one side of the hinge 21 and the side beam 2 near the connection between the door panel 11 and the side beam 2. A plurality of hinges 21 are evenly arranged on the hinge 21 and the side beam 14 to share the load, further improving the stability and durability of the door panel 11 and ensuring that the door panel 11 is not easily loosened or damaged during long-term use.

[0043] The hinge 21 includes a fixed seat 24, a rotating arm 23 and a connecting pin 22. The fixed seat 24 is fixedly installed on one side of the hinge 21 bar 14. The connecting pin 22 passes through the corresponding holes of the fixed seat 24 and one end of the rotating arm 23 to tightly connect the two. The other end of the rotating arm 23 is fixed to the side beam 2 by screws or other means, which together ensure that the door panel 11 can be opened and closed smoothly. Among them, the connecting pin 22 allows the fixed seat 24 and the rotating arm 23 to rotate relative to each other, thereby realizing the opening and closing action of the door panel 11; when the door panel 11 needs to be opened, the door panel 11 is pulled, and the rotating arm 23 rotates relative to the fixed seat 24, so that the door panel 11 can rotate around the axis of the connecting pin 22. In other words, the hinge 21 realizes the smooth opening and closing of the door panel 11 and ensures stability and reliability during the opening and closing process.

[0044] Specifically, a limit member 20 is fixedly provided on the outside of the door cover 16, and a slide groove is provided inside the limit member 20. One end of the limit rod 10 is slidably connected in the slide groove, and the other end of the limit rod 10 is fixed on the rod mounting seat 9 of the side beam 2. The limit rod 10 is used to prevent the door panel 11 from being bumped due to excessive angle when it is opened. When the door panel 11 starts to open or close, the limit rod 10 moves together with the door panel 11. As the door panel 11 moves, the limit rod 10 slides in the slide groove. When the limit rod 10 slides to the end position of the slide groove, it prevents the limit rod 10 from sliding further. In this way, the movement range of the door panel 11 can be effectively controlled, and the function of limiting the opening and closing angle of the door panel 11 can be realized.

[0045] A lock slot is provided at the position of the door lock 18 of the door panel 11 , exposing the door lock 18 on the outside of the door panel 11 ; the door panels 11 on both sides have the same structure, and are symmetrical and balanced.

[0046] Working principle details:

[0047] A fixed installation frame is embedded in the pump room opening, and is at a certain distance from the edge of the pump room opening; then the door panels 11 on both sides are fixedly installed on the side beams 2 through hinges 21, and the limit rod 10 is fixedly installed, and the fixed positions of the limit plate 17 and the limit block 7, the door lock 18 and the lock plate 8, the limit member 20 and the limit rod 10 are matched to each other to ensure the matching between the structures and jointly realize the corresponding functions. When it is necessary to open the pump room, open the double side doors that open opposite each other, and limit the opening angle of the door panel 11 under the action of the limit rod 10. Due to the harsh working environment in the mine, the equipment materials are required to have high strength and excellent wear resistance, so that the weight of the door panel 11 is relatively large. Due to the setting of the double side doors, the overall weight of the door is dispersed in two places, which is less than the weight of the single side door, so as to solve the wear problem of the side door lock 18 buckle and the connection, and extend the service life of the side door.

[0048] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A double-opening side door for a mining excavator, characterized in that: It comprises a mounting frame and door panels which are rotatably connected on both sides of the mounting frame; the door panels are tightly fitted with the outer surface of the mounting frame when closed inwards, and a certain space is formed between the door panels and the mounting frame when opened outwards.

2. A double-opening side door for a mining excavator as claimed in claim 1, characterized in that: The installation frame includes an upper crossbeam, both ends of which are fixedly connected to side beams, the bottom end of the upper crossbeam at the length center is fixedly connected to an axle beam, and lower crossbeams are fixedly connected between the axle beam and the side beams on both sides to form a rectangular frame.

3. A double-opening side door for a mining excavator as claimed in claim 2, characterized in that: Combination blocks are fixed on both sides of the axle beam below the upper crossbeam, and combination blocks are fixed on both sides of the axle beam above the lower crossbeam. A locking plate is fixed on the outer surface of the axle beam at a certain distance from the top of the axle beam, and the locking plate is arranged between the upper and lower end combination blocks.

4. A double-opening side door for a mining excavator as claimed in claim 3, characterized in that: The combined block comprises a fixed block, an anti-collision block is fixedly arranged on the front side of the fixed block, one side of the fixed block is tightly fixed to the axle beam, and a limit block is fixedly arranged on the other side of the fixed block.

5. A double-opening side door for a mining excavator as claimed in claim 4, characterized in that: The outer shell of the anti-collision block is provided with a rubber sleeve.

6. A double-opening side door for a mining excavator as claimed in claim 4, characterized in that: The limit block is a sideways U-shaped structure, and a groove of the limit block is engaged with a limit plate fixedly arranged on the door panel.

7. The double-opening side door of a mining excavator as claimed in claim 3, characterized in that: The two sides of the lock plate protrude beyond the width of the axle beam and are locked in cooperation with the lock pin of the door lock.

8. The double-opening side door of a mining excavator as claimed in claim 1, characterized in that: The door panel includes a panel, an upper cap is fixedly provided on the upper end of the inner side of the panel, a bottom cap is fixedly provided on the lower end of the inner side of the panel, a door lock bar is fixedly provided on one side of the inner side of the panel, a hinge bar is fixedly provided on the other side of the inner side of the panel, a door cap is fixedly provided between the door lock bar and the hinge bar, and the door cap is provided at the height center of the panel.

9. A double-opening side door for a mining excavator as claimed in claim 8, characterized in that: A hinge is fixedly arranged on one side of the hinge stile close to the connection between the door panel and the side beam.

10. A double-opening side door for a mining excavator as claimed in claim 8, characterized in that: A limiting piece is fixedly arranged on the outer side of the door cover, a sliding groove is penetrated inside the limiting piece, one end of a limiting pull rod is slidably connected in the sliding groove, and the other end of the limiting pull rod is fixed on the side beam.

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