A type of anti-rollover excavator frame

Abstract

This utility model provides an anti-rollover excavator frame, including a frame assembly, the frame assembly including a frame body, a frame base fixedly installed at the bottom of the frame body, and cavities formed on the inner surfaces of both sides of the frame body; and an anti-rollover component, the anti-rollover component including a bidirectional motor, a drive bevel gear, and bidirectional screws. The bidirectional motor is located on the rear side of the surface of the frame body. The two drive bevel gears are movably connected to the inner cavities of the two cavities, and the two bidirectional screws are movably connected to the inner cavities of the two cavities. Screw blocks are threadedly connected to the front and rear sides of the surfaces of the two bidirectional screws. By setting up the anti-rollover component, the overall support of the equipment effectively prevents the excavator from tilting during heavy operation due to ground inclination, ensuring the safety of excavator use and facilitating operator use.

Description

Technical Field

[0001] This utility model relates to an anti-rollover excavator frame, belonging to the field of frame technology. Background Technology

[0002] The excavator chassis is a crucial component of an excavator, and its design and manufacturing directly impact the excavator's performance and lifespan. Throughout the development of excavators, chassis design and manufacturing technologies have continuously progressed and improved.

[0003] Chinese Patent Publication No. (CN 221941496 U) discloses an anti-rollover excavator frame, including a support plate. Slide grooves are formed on both side walls of the support plate. A first ball screw is rotatably connected to one end of the inner wall of each slide groove. A connecting piece is fixedly connected to one end of the first ball screw. A second ball screw is fixedly installed on the side of the connecting piece away from the first ball screw. The end of the second ball screw away from the first ball screw is rotatably connected to the inner wall of the slide groove. The threads of the first and second ball screws are opposite. Motors are fixedly installed at both ends of the side walls of the support plate. The output ends of the two motors pass through the side walls of the slide grooves and are fixedly connected to the second ball screws. This invention allows for adjustment of the support mechanism according to the ground conditions of the construction site, thereby enhancing the excavator's adaptability and improving work efficiency.

[0004] The aforementioned device is mainly driven by two motors to adjust the support base. However, in actual use, the frequency of the motors may not be completely synchronized. In this case, the positions of the support bases on the left and right sides may not be consistent. When the frame is supported by the support base, the frame may tilt, which may lead to risks during construction and make it inconvenient for operators to use.

[0005] To address this, a rollover-resistant excavator frame is proposed. Utility Model Content

[0006] In view of this, the present invention provides an anti-rollover excavator frame to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0007] The technical solution of this utility model is achieved as follows: a rollover-resistant excavator frame, comprising:

[0008] A frame assembly, comprising a frame body, a frame base fixedly mounted on the bottom of the frame body, and cavities formed on the inner surfaces of both the left and right sides of the frame body;

[0009] An anti-rollover assembly includes a bidirectional motor, a drive bevel gear, and bidirectional screws. The bidirectional motor is located on the rear side of the vehicle frame body surface. The two drive bevel gears are movably connected to the inner cavities of the two cavities. The two bidirectional screws are movably connected to the inner cavities of the two cavities. Screw blocks are threaded to the front and rear sides of the surfaces of the two bidirectional screws. Mounting blocks are fixedly installed on the outer sides of the four screw blocks. Hydraulic cylinders are fixedly installed on the tops of the four mounting blocks. Extension rods are fixedly installed on the bottoms of the four hydraulic cylinders. Support seats are fixedly installed on the bottoms of the four extension rods. Mounting plates are provided on the bottoms of the four support seats. Insert rods are fixedly installed on the bottoms of the four mounting plates.

[0010] More preferably, the bidirectional motor is fixedly installed on the rear side of the vehicle frame body surface, and the output ends on both the left and right sides of the bidirectional motor are fixedly connected to connecting shafts, and the inner sides of the two active bevel gears are fixedly connected to the other ends of the two connecting shafts.

[0011] More preferably, a driven bevel gear is mounted on the rear side of each of the two bidirectional screws, and the surfaces of the two driven bevel gears mesh with the surfaces of the two driving bevel gears.

[0012] More preferably, the thread directions of the two bidirectional screw surfaces are opposite, and the thread pitch of the two bidirectional screw surfaces is the same.

[0013] More preferably, the top of each of the four support seats is threaded with a mounting bolt, and the bottom of the mounting bolt is threaded to the inner surface of the mounting plate.

[0014] More preferably, the left and right sides of the frame body are provided with sliding grooves, and the four mounting blocks pass through the inner cavity of two of the sliding grooves and extend to the outer side of the frame body.

[0015] More preferably, a limiting rod is fixedly installed in the inner cavity of each of the two cavities, and the four screw blocks are slidably connected to the surfaces of the two limiting rods.

[0016] More preferably, the surfaces of both connecting shafts are movably connected to support blocks via bearings, and the bottoms of both support blocks are fixedly mounted on the surface of the vehicle frame body.

[0017] The present invention has the following advantages due to the adoption of the above technical solution:

[0018] I. This utility model, by setting up an anti-rollover component, ensures that when used on muddy or soil surfaces, the output of a bidirectional motor causes the four mounting blocks to maintain the same frequency of displacement. Simultaneously, the hydraulic cylinder drives the insertion rod to be inserted into the ground, and the entire equipment is supported by the support base and mounting plate. When used on hard ground, the mounting plate and insertion rod can be disassembled, allowing the support base to directly support the equipment. By supporting the entire equipment, this effectively prevents the excavator from tilting during heavy operation due to ground inclination, ensuring the safety of excavator use and facilitating operation for operators.

[0019] II. This utility model allows for the assembly and disassembly of the insertion rod by setting installation bolts. It facilitates the use of the insertion rod and support base to support the entire equipment under different road conditions. By setting a sliding groove, the movement of the installation block can be limited to prevent it from shifting and affecting the adjustment of the support base and insertion rod positions. By setting a limit rod, the movement of the screw block can be limited to prevent it from rotating synchronously with the bidirectional screw. By setting a support block, the connecting shaft can be supported to prevent it from falling off after long-term use.

[0020] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the anti-rollover component structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the bidirectional screw structure of this utility model;

[0026] Figure 5 For the present utility model Figure 3Enlarged structural diagram at point A;

[0027] Figure 6 For the present utility model Figure 4 Enlarged structural diagram at point B.

[0028] Reference numerals: 1. Frame assembly; 101. Frame body; 102. Frame base; 103. Cavity; 2. Anti-rollover assembly; 201. Bidirectional motor; 202. Connecting shaft; 203. Driving bevel gear; 204. Driven bevel gear; 205. Bidirectional screw; 206. Screw block; 207. Mounting block; 208. Hydraulic cylinder; 209. Extension rod; 210. Support seat; 211. Mounting plate; 212. Insert rod; 213. Mounting bolt; 214. Slide groove; 215. Limiting rod; 216. Support block. Detailed Implementation

[0029] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0030] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figure 1-5 As shown, this utility model embodiment provides an anti-rollover excavator frame, including:

[0033] The frame assembly 1 includes a frame body 101, a frame base 102 is fixedly installed at the bottom of the frame body 101, and cavities 103 are formed on the inner surfaces of the left and right sides of the frame body 101.

[0034] The anti-rollover component 2 includes a bidirectional motor 201, two active bevel gears 203, and two bidirectional screws 205. The bidirectional motor 201 is located on the rear side of the surface of the frame body 101. The two active bevel gears 203 are movably connected to the inner cavities of the two chambers 103, and the two bidirectional screws 205 are movably connected to the inner cavities of the two chambers 103. Screw blocks 206 are threaded onto the front and rear sides of the surfaces of the two bidirectional screws 205. Mounting blocks 207 are fixedly installed on the outer sides of the four screw blocks 206. Hydraulic cylinders 208 are fixedly installed on the top of the four mounting blocks 207. Extension rods 209 are fixedly installed on the bottom of the four hydraulic cylinders 208. Supports are fixedly installed on the bottom of the four extension rods 209. The support 210 has a mounting plate 211 at its bottom, and a rod 212 is fixedly installed at the bottom of each of the four mounting plates 211. The bidirectional motor 201 is fixedly installed on the rear side of the surface of the frame body 101. The output ends of the bidirectional motor 201 on both the left and right sides are fixedly connected to the connecting shaft 202. The inner sides of the two driving bevel gears 203 are fixedly connected to the other ends of the two connecting shafts 202. The rear sides of the two bidirectional screws 205 are each equipped with a driven bevel gear 204. The surfaces of the two driven bevel gears 204 mesh with the surfaces of the two driving bevel gears 203. The thread directions of the two bidirectional screws 205 are opposite, and the thread pitch of the two bidirectional screws 205 is the same.

[0035] By setting the anti-rollover component 2, when used on muddy or soil surfaces, the output of the bidirectional motor 201 causes the four mounting blocks 207 to maintain the same frequency of displacement. At the same time, the hydraulic cylinder 208 drives the insertion rod 212 to be inserted into the ground, and the entire equipment is supported by the support base 210 and the mounting plate 211. When used on hard ground, the mounting plate 211 and the insertion rod 212 can be removed, so that the support base 210 directly supports the equipment. By supporting the entire equipment, the excavator is effectively prevented from tilting during heavy operation due to the inclination of the ground, ensuring the safety of the excavator and making it convenient for operators to use.

[0036] Example 2

[0037] like Figure 1-6As shown, in one embodiment, the tops of the four support seats 210 are threaded with mounting bolts 213, the bottoms of the mounting bolts 213 are threaded to the inner surface of the mounting plate 211, the left and right sides of the frame body 101 are provided with sliding grooves 214, the four mounting blocks 207 penetrate the inner cavity of the two sliding grooves 214 and extend to the outer side of the frame body 101, the inner cavities of the two cavities 103 are fixedly installed with limit rods 215, the four screw blocks 206 are slidably connected to the surfaces of the two limit rods 215, the surfaces of the two connecting shafts 202 are movably connected with support blocks 216 through bearings, and the bottoms of the two support blocks 216 are fixedly installed on the surface of the frame body 101.

[0038] By setting the mounting bolt 213, the insertion rod 212 can be disassembled and assembled, allowing for convenient support of the entire equipment using the insertion rod 212 and the support base 210 under different road conditions. By setting the sliding groove 214, the movement of the mounting block 207 can be limited to prevent it from shifting during movement, thus affecting the adjustment of the positions of the support base 210 and the insertion rod 212. By setting the limit rod 215, the movement of the screw block 206 can be limited to prevent it from rotating synchronously with the bidirectional screw 205. By setting the support block 216, the connecting shaft 202 can be supported to prevent it from falling off after long-term use.

[0039] In operation, this invention works as follows: First, depending on the road environment, if it is mud or soil, the mounting plate 211 is fixedly installed on the bottom of the support base 210 using mounting bolts 213. Then, through the output of the bidirectional motor 201, the connecting shaft 202 drives the driving bevel gear 203 to rotate. At this time, the driving bevel gear 203 and the driven bevel gear 204 cooperate with each other. The driven bevel gear 204 drives the bidirectional screw 205 to rotate, and the screw block 206 moves outward along the thread on the surface of the bidirectional screw 205, so that... The screw block 206 drives the mounting block 207 and the hydraulic cylinder 208 to move outward. At this time, the hydraulic cylinder 208 extends downward, causing the extension rod 209 to drive the support seat 210, the mounting plate 211 and the insertion rod 212 to move downward simultaneously. The insertion rod 212 is inserted into the ground, and the mounting plate 211 and the support seat 210 are at the top of the ground, thereby achieving the support work for the excavator. When used on a hard road surface, the mounting plate 211 is removed from the surface of the support seat 210, and then the above steps are repeated to complete the support work for the excavator.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A roll-over protected excavator undercarriage characterised in that, include: The frame assembly (1) includes a frame body (101), a frame base (102) is fixedly installed at the bottom of the frame body (101), and cavities (103) are opened on the inner surfaces of the left and right sides of the frame body (101). Anti-rollover assembly (2), the anti-rollover assembly (2) includes a bidirectional motor (201), a drive bevel gear (203) and a bidirectional screw (205). The bidirectional motor (201) is located on the rear side of the surface of the frame body (101). The two drive bevel gears (203) are movably connected to the inner cavities of the two cavities (103). The two bidirectional screws (205) are movably connected to the inner cavities of the two cavities (103). The front and rear sides of the surfaces of the two bidirectional screws (205) are threaded with screws. Block (206), mounting blocks (207) are fixedly installed on the outer side of each of the four screw blocks (206), hydraulic cylinders (208) are fixedly installed on the top of each of the four mounting blocks (207), extension rods (209) are fixedly installed on the bottom of each of the four hydraulic cylinders (208), support seats (210) are fixedly installed on the bottom of each of the four extension rods (209), mounting plates (211) are provided on the bottom of each of the four support seats (210), and insertion rods (212) are fixedly installed on the bottom of each of the four mounting plates (211).

2. The anti-rollover excavator frame according to claim 1, characterized in that: The bidirectional motor (201) is fixedly installed on the rear side of the surface of the frame body (101). The output ends of the bidirectional motor (201) on both the left and right sides are fixedly connected to the connecting shafts (202). The inner sides of the two active bevel gears (203) are fixedly connected to the other ends of the two connecting shafts (202).

3. The anti-rollover excavator frame according to claim 1, characterized in that: Both of the two bidirectional screws (205) are equipped with driven bevel gears (204) on their rear sides, and the surfaces of the two driven bevel gears (204) mesh with the surfaces of the two driving bevel gears (203).

4. The anti-rollover excavator frame according to claim 1, characterized in that: The threads on the surfaces of the two bidirectional screws (205) are in opposite directions, and the thread pitch on the surfaces of the two bidirectional screws (205) is the same.

5. The anti-rollover excavator frame according to claim 1, characterized in that: The top of each of the four support bases (210) is threaded with a mounting bolt (213), and the bottom of the mounting bolt (213) is threaded to the inner surface of the mounting plate (211).

6. The anti-rollover excavator frame according to claim 1, characterized in that: The frame body (101) has grooves (214) on both the left and right sides, and the four mounting blocks (207) penetrate the inner cavity of the two grooves (214) and extend to the outside of the frame body (101).

7. The anti-rollover excavator frame according to claim 1, characterized in that: Limiting rods (215) are fixedly installed in the inner cavities of both cavities (103), and the four screw blocks (206) are slidably connected to the surfaces of the two limiting rods (215).

8. The anti-rollover excavator frame according to claim 2, characterized in that: The surfaces of the two connecting shafts (202) are movably connected to support blocks (216) via bearings, and the bottoms of the two support blocks (216) are fixedly installed on the surface of the frame body (101).

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