High-strength excavator upper frame

Abstract

The utility model provides a high-strength excavator upper frame which comprises an upper frame body, a cab is fixedly installed on the top of the upper frame body, the left side of the cab is movably connected with a cabin door through a hinge, tempered laminated glass is embedded in the front side of the cab, and a protection mechanism is arranged on the top of the upper frame body. The protection mechanism comprises a supporting frame, the supporting frame is fixedly installed on the top of the upper frame body, lead screws are movably connected to the left side and the right side of the top of the supporting frame, threaded blocks are in threaded connection to the surfaces of the two lead screws, and clamping blocks are fixedly installed on the inner sides of the two threaded blocks. The corrugated iron wire protective net can protect a driver in the inner cavity of the cab, so that the situation that stones splash during operation of an excavating arm when the cab drives an excavator and the driver is hurt by the stones is avoided, and the safety during driving of the excavator is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a high strength excavator upper frame belongs to upper frame technical field. BACKGROUND

[0002] The excavator is a kind of heavy engineering machinery widely used in earthwork engineering, road construction, mining and other fields, and the upper frame is an important component of the excavator, and bears the cab, engine, operating room and other key components.

[0003] Chinese open patent (open number: CN 221919618 U) discloses a kind of excavator upper frame with protective structure, it include: upper frame body, box, first protection mechanism and second protection mechanism, the upper frame body lower end is connected with box, the box inside upper end is provided with first protection mechanism, the first protection mechanism side is connected with positioning mechanism, the box inside lower end is provided with second protection mechanism;First protection mechanism is provided, first protection plate is pulled during use, first protection plate drives slider to slide in box inside, when first protection plate is completely pulled out, the angle is adjusted by first protection plate and slider rotation connection, first protection plate is adjusted to the front end of excavator cockpit windshield installed on the upper end of upper frame body, it is convenient to completely protect the windshield of different sizes cockpit, and first protection mechanism is provided with rigid material, can effectively prevent flying stone and other objects, improve the safety of driver;

[0004] The above device still needs operator to manually operate first protection plate when adjusting protection plate, so that subsequent protection work can be completed, the process is relatively cumbersome, and certain labor cost is wasted, so that the flexibility of driver protection is low, and it is inconvenient for operator to use.

[0005] Therefore, a high-strength excavator upper frame is provided. UTILITY MODEL CONTENTS

[0006] Therefore, the utility model provides a high-strength excavator upper frame to solve or alleviate the technical problems existing in the prior art, at least to provide a beneficial choice.

[0007] The technical scheme of the utility model is achieved as follows: a high-strength excavator upper frame, comprising an upper frame body, a cockpit fixedly installed on the top of the upper frame body, a cabin door movably connected to the left side of the cockpit through a hinge, tempered laminated glass inlaid on the front side of the cockpit, a protection mechanism arranged on the top of the upper frame body, the protection mechanism comprising a support frame fixedly installed on the top of the upper frame body, a lead screw movably connected to the left and right sides of the top of the support frame, a screw block threadedly connected to the surface of the lead screw, a clamping block fixedly installed on the inner side of the screw block, and a corrugated iron wire protective net arranged on the inner side of the clamping block.

[0008] Further preferably, a driven bevel gear is fixedly installed on the bottom of the lead screw, a driving bevel gear is arranged on the left and right sides of the inner side of the support frame, and the surface of the driving bevel gear is engaged with the surface of the driven bevel gear.

[0009] Further preferably, a bidirectional motor is fixedly installed on the top of the upper frame body, a connecting rod is fixedly connected to the output end of the left and right sides of the bidirectional motor, and the driving bevel gear is fixedly installed on the other end of the connecting rod.

[0010] Further preferably, the screw thread directions of the surfaces of the lead screws are opposite, and the screw thread intervals of the surfaces of the lead screws are the same.

[0011] Further preferably, a storage box is fixedly installed on the top of the support frame, and the bottom of the corrugated iron wire protective net is fixedly installed in the inner cavity of the storage box.

[0012] Further preferably, a support block is movably connected to the surface of the connecting rod through a bearing, and the bottom of the support block is fixedly installed on the top of the upper frame body.

[0013] Further preferably, a limiting rod is fixedly installed on the left and right sides of the top of the support frame, and the screw block is slidably connected to the surface of the limiting rod.

[0014] Further preferably, a mounting bolt is threadedly connected to the surface of the clamping block, and the mounting bolt is threadedly connected to the inner surface of the corrugated iron wire protective net.

[0015] The utility model embodiment has the following advantages due to the adoption of the above technical scheme:

[0016] The utility model discloses a protection mechanism is set up, through the output of bidirectional motor, and the screw block drives the clamping block to move upwards to make the corrugated iron wire protection net extend and open, through the opening of corrugated iron wire protection net, can make the corrugated iron wire protection net to the driver in the cockpit inner chamber carry out the protection, avoid the cockpit when driving excavator, and the excavator arm causes the stone splashing when operating, thereby causing the harm of stone block to the driver, improved the security when driving excavator.

[0017] Two, the utility model discloses a storage box is set up, and the corrugated iron wire protection net is stored in the inner chamber of storage box when the excavator stops using, through setting up the supporting block, can support the effect to connecting rod, avoid the bending of connecting rod after long -time use due to the influence of driving bevel gear weight, through setting up the limiting rod, can limit the movement of screw block, avoid the deviation when screw block moves, thereby influence the opening extension work of corrugated iron wire protection net, through setting up the mounting bolt, can conveniently carry out the dismouting work of corrugated iron wire protection net and clamping block, can be convenient for the dismounting maintenance work of corrugated iron wire protection net.

[0018] The above summary is only for the purpose of the description and is not intended to limit in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features will become apparent to those skilled in the art from the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0020] Figure 1 It is a three-dimensional front view structure schematic diagram of the utility model;

[0021] Figure 2 It is a protection mechanism structure schematic diagram of the utility model;

[0022] Figure 3 It is a Figure 2 A enlarged structure schematic diagram;

[0023] Figure 4 It is a bidirectional motor structure schematic diagram of the utility model;

[0024] Figure 5 It is a Figure 4 B enlarged structure schematic diagram.

[0025] Fig. 1, upper frame body; 2, protection mechanism; 201, support frame; 202, lead screw; 203, screw block; 204, clamping block; 205, corrugated wire protection net; 206, bidirectional motor; 207, connecting rod; 208, driving bevel gear; 209, driven bevel gear; 210, supporting block; 211, storage box; 212, limiting rod; 213, mounting bolt; 3, cockpit; 4, warehouse door; 5, tempered laminated glass. DETAILED DESCRIPTION

[0026] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be essentially exemplary rather than limiting.

[0027] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] Embodiment 1

[0029] As Figures 1-5 shown, the embodiment of the present application provides a high-strength excavator upper frame, which comprises an upper frame body 1, a cockpit 3 is fixedly installed on the top of the upper frame body 1, a warehouse door 4 is movably connected to the left side of the cockpit 3 through a hinge, tempered laminated glass 5 is inlaid on the front side of the cockpit 3, a protection mechanism 2 is arranged on the top of the upper frame body 1, the protection mechanism 2 comprises a support frame 201, the support frame 201 is fixedly installed on the top of the upper frame body 1, lead screws 202 are movably connected to the left and right sides of the top of the support frame 201, screw blocks 203 are threadedly connected to the surfaces of the two lead screws 202, clamping blocks 204 are fixedly installed on the inner sides of the two screw blocks 203, corrugated wire protection nets 205 are arranged on the inner sides of the two clamping blocks 204, driven bevel gears 209 are fixedly installed on the bottoms of the two lead screws 202, driving bevel gears 208 are arranged on the left and right sides of the inner side of the support frame 201, the surfaces of the two driving bevel gears 208 are engaged with the surfaces of the two driven bevel gears 209, a bidirectional motor 206 is fixedly installed on the top of the upper frame body 1, connecting rods 207 are fixedly connected to the output ends of the left and right sides of the bidirectional motor 206, the two driving bevel gears 208 are fixedly installed on the other ends of the two connecting rods 207, the thread directions of the surfaces of the two lead screws 202 are opposite, and the thread spacings of the surfaces of the two lead screws 202 are the same.

[0030] By setting up the protective mechanism 2, through the output of the bidirectional motor 206, the screw block 203 drives the clamping block 204 to move upward, thereby causing the corrugated wire mesh 205 to extend and unfold. By unfolding the corrugated wire mesh 205, the corrugated wire mesh 205 can protect the driver in the cab 3, preventing stones from flying when the excavator arm is running, thus avoiding injury to the driver and improving the safety of operating the excavator.

[0031] Example 2

[0032] like Figures 2-5 As shown, in one embodiment, a storage box 211 is fixedly installed on the top of the support frame 201, and the bottom of the corrugated wire mesh 205 is fixedly installed in the inner cavity of the storage box 211. The surfaces of the two connecting rods 207 are movably connected to the support blocks 210 through bearings. The bottoms of the two support blocks 210 are fixedly installed on the top of the upper frame body 1. Limiting rods 212 are fixedly installed on the left and right sides of the top of the support frame 201. The two screw blocks 203 are slidably connected to the surfaces of the two limiting rods 212. The surfaces of the two clamping blocks 204 are threadedly connected to the mounting bolts 213. The two mounting bolts 213 are threadedly connected to the inner surface of the corrugated wire mesh 205.

[0033] By setting up the storage box 211, the corrugated wire mesh 205 can be conveniently stored in the inner cavity of the storage box 211 when the excavator is not in use. By setting up the support block 210, the connecting rod 207 can be supported, preventing the connecting rod 207 from bending due to the weight of the active bevel gear 208 after long-term use. By setting up the limit rod 212, the movement of the screw block 203 can be limited, preventing the screw block 203 from shifting when moving, thus affecting the unfolding and extension of the corrugated wire mesh 205. By setting up the mounting bolt 213, the corrugated wire mesh 205 and the clamping block 204 can be easily disassembled and assembled, making it convenient for the disassembly and maintenance of the corrugated wire mesh 205.

[0034] When this utility model is in operation: when it is necessary to protect the cockpit 3, the output end of the bidirectional motor 206 is activated, at which time the connecting rod 207 rotates, causing the active bevel gear 208 to rotate synchronously. At this time, the active bevel gear 208 and the driven bevel gear 209 cooperate with each other, and the driven bevel gear 209 drives the lead screw 202 to rotate. The screw block 203 moves upward along the thread on the surface of the lead screw 202, causing the clamping block 204 to synchronously drive the corrugated wire protective net 205 to extend up and down. At this time, the corrugated wire protective net 205 stands upright on the front side of the cockpit 3, thereby providing protection for the cockpit 3.

[0035] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various changes or replacements within the technical range disclosed by the present application, which should be encompassed in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A high-strength upper frame of a shovel, comprising an upper frame body (1), characterized by, The top of the upper frame body (1) is fixedly installed with a cockpit (3), the left side of the cockpit (3) is movably connected with a warehouse door (4) through a hinge, the front side of the cockpit (3) is inlaid with a tempered laminated glass (5), and the top of the upper frame body (1) is provided with a protection mechanism (2).

2. The high-strength excavator upper frame according to claim 1, characterized by: The bottom of the two screw rods (202) is fixedly installed with a driven bevel gear (209), and the left and right sides of the inner side of the support frame (201) are provided with a driving bevel gear (208), and the surfaces of the two driving bevel gears (208) are engaged with the surfaces of the two driven bevel gears (209).

3. A high-strength excavator upper frame according to claim 2, characterized in that: The top of the upper frame body (1) is fixedly installed with a two-way motor (206), and the output ends of the left and right sides of the two-way motor (206) are fixedly connected with connecting rods (207), and the other ends of the two connecting rods (207) are fixedly installed with the two driving bevel gears (208).

4. The high-strength excavator upper frame of claim 1, wherein: The screw thread directions of the surfaces of the two screw rods (202) are opposite, and the screw thread pitches of the surfaces of the two screw rods (202) are the same.

5. The high-strength excavator upper frame of claim 1, wherein: The top of the support frame (201) is fixedly installed with a receiving box (211), and the bottom of the corrugated iron wire protective net (205) is fixedly installed in the inner cavity of the receiving box (211).

6. The high-strength excavator upper frame of claim 3, wherein: The surfaces of the two connecting rods (207) are movably connected with support blocks (210) through bearings, and the bottoms of the two support blocks (210) are fixedly installed on the top of the upper frame body (1).

7. The high-strength excavator upper frame of claim 1, wherein: The left and right sides of the top of the support frame (201) are fixedly installed with limiting rods (212), and the two screw blocks (203) are movably connected to the surfaces of the two limiting rods (212).

8. The high-strength excavator upper frame of claim 1, wherein: The surfaces of the two clamping blocks (204) are threadedly connected with mounting bolts (213), and the two mounting bolts (213) are threadedly connected to the inner surfaces of the corrugated iron wire protective net (205).

Images