Crawler-type hoisting equipment chassis protection device

Abstract

The utility model discloses a crawler-type hoisting equipment chassis protective device which comprises a crawler chassis, a slewing bearing, a protective bottom plate I, a protective cover and a fixed sliding plate I. Crawler beams are distributed on the two sides of the crawler chassis and fixedly installed through a supporting base, and a crane installation base is fixedly installed on the upper portion of the supporting base. The crane installation base is provided with hoisting equipment through the slewing bearing, the first protection bottom plate is fixedly installed on the periphery of the crane installation base, the protective cover is installed at the joint of the slewing bearing and the crane installation base in a sealed mode, and sealing protection of the slewing bearing assembly is achieved. Sealing protection is still achieved in the rotating process of lifting equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of crawler crane equipment, and particularly relates to a chassis protection device for a crawler crane equipment. Background Art

[0002] Crawler cranes are a type of lifting equipment widely used in various fields of the national economy. There is still a blank in the independent development of large-tonnage products in China. Currently, only two manufacturers have introduced foreign technologies from the late 1970s and have a small amount of production. Most of the market is still occupied by foreign products. Crawler cranes have a large ground contact area, good passability, strong adaptability, can travel with load, and can perform various operations such as earth excavation, ramming, and pile driving.

[0003] Publication (Announcement) Number: CN216140063U, a chassis adjustment system for a crawler crane equipment, including a chassis body. The chassis body includes a cross beam. The cross beam includes a first main body, and support rods for cooperating with and installing longitudinal beams are provided on both sides of the first main body; the support rods include main rods, and a pair of sub-rods are hinged at the ends of the main rods; the longitudinal beam includes a second main body, a hydraulic cylinder is hinged at the end of the second main body, and a support frame for installing a driving wheel or a driven wheel is provided. The telescopic end of the hydraulic cylinder is hingedly installed with the support frame.

[0004] In the prior art, the dust-proof, waterproof and other protection structures for the slewing bearing assembly at the connection between the crane and the chassis are not protected, which further causes technical problems such as increased wear of the slewing bearing assembly and loss of lubricating oil.

[0005] Therefore, a chassis protection device for a crawler crane equipment is needed. Content of the Utility Model

[0006] In view of the problems existing in the above prior art, the utility model provides a chassis protection device for a crawler crane equipment, aiming to solve the above-mentioned technical problems.

[0007] To achieve the above object, the utility model is realized through the following technical solutions: A chassis protection device for a crawler crane equipment, including a crawler chassis, a slewing bearing, a first protection bottom plate, a protective cover, and a first fixed sliding plate. Crawler cross beams are distributed on both sides of the crawler chassis, and are fixedly installed between the crawler cross beams through support bases. The upper part of the support base is fixedly installed as a crane installation base. The crane installation base installs the lifting equipment through the slewing bearing. The periphery of the crane installation base is fixedly installed with the first protection bottom plate. The first protection bottom plate is coaxially arranged with the crane installation base. The first protection bottom plate fixedly installs the protective cover through bolts. The protective cover extends to the upper part of the crane installation base and is vertically installed with the first fixed sliding plate. A slide rail assembly is detachably installed on the surface of the slewing bearing below the orthographic projection of the first fixed sliding plate. The first fixed sliding plate is slidably installed with the slide rail assembly.

[0008] Preferably, the end face of the fixed slide plate I away from the protective cover is set as an arc-shaped chute.

[0009] Preferably, the slide rail assembly includes a ball base, the ball base is clamped and installed with the slewing bearing, the end face of the ball base away from the slewing bearing is set as a ball slide rail, and the ball slide rail is slidably arranged with the arc-shaped chute.

[0010] Preferably, the protective cover is arranged in a columnar structure, and the inner diameter is larger than the outer diameters of the slewing bearing and the crane mounting base.

[0011] In summary, the present utility model provides a chassis protection device for a crawler crane. The structure of this patent adopts: a rib plate structure is arranged on the support base to realize the fixed support function for the support base. A crane mounting base is arranged on the upper part of the support base, and the crane mounting base installs the lifting equipment through the slewing bearing; the overall protection structure of the slewing bearing is: a first protective bottom plate is fixedly installed around the crane mounting base, the upper part of the first protective bottom plate is installed with a protective cover through bolts, the protective cover surrounds the connection part between the slewing bearing and the crane mounting base, the protective cover extends to the upper part of the slewing bearing and vertically installs a fixed slide plate I, a slide rail assembly is detachably installed on the surface of the slewing bearing below the orthographic projection of the fixed slide plate I, and the fixed slide plate I is slidably installed with the slide rail assembly; through the protective cover being hermetically installed at the connection part between the slewing bearing and the crane mounting base, the sealing protection of the overall assembly of the slewing bearing is realized, and through the sliding installation of the fixed slide plate I and the slide rail assembly, the sealing protection is still realized during the rotation process of the lifting equipment. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the chassis of the crawler crane of the present utility model;

[0013] Figure 2 is a schematic internal dissection structural diagram of the chassis of the crawler crane of the present utility model;

[0014] Figure 3 is the Figure 2 structural schematic diagram of the sliding installation of the fixed slide plate I at the A position in;

[0015] In the figure: crawler chassis 1, slewing bearing 2, first protective bottom plate 3, protective cover 4, fixed slide plate I 5, crawler cross beam 6, support base 7, crane mounting base 11, slide rail assembly 12, arc-shaped chute 13, ball base 14, ball slide rail 15. Detailed Embodiment

[0016] The following further describes the present utility model with reference to the drawings.

[0017] As Figures 1 to 3 shown:

[0018] The present utility model is as Figure 1As shown in the figure, a chassis protection device for a crawler crane includes a crawler chassis 1, a slewing bearing 2, a first protective bottom plate 3, a protective cover 4, and a first fixed sliding plate 5. Crawler cross beams 6 are distributed on both sides of the crawler chassis 1. The crawler cross beams 6 are fixedly installed through support bases 7. The upper part of the support base 7 is fixedly installed as a crane installation base 11. The crane installation base 11 installs a lifting device through the slewing bearing 2. The periphery of the crane installation base 11 is fixedly installed with the first protective bottom plate 3. The first protective bottom plate 3 is coaxially arranged with the crane installation base 11. The first protective bottom plate 3 is fixedly installed with the protective cover 4 through bolts. The protective cover 4 extends to the upper part of the crane installation base 11 and is vertically installed with the first fixed sliding plate 5. A slide rail assembly 12 is detachably installed on the surface of the slewing bearing 2 below the orthographic projection of the first fixed sliding plate 5. The first fixed sliding plate 5 is slidably installed with the slide rail assembly 12.

[0019] To solve the problem of protecting the slewing bearing assembly in the prior art, the structure of this patent adopts: a rib plate structure is arranged on the support base 7 to realize the fixed support function of the support base 7. The crane installation base 11 is arranged on the upper part of the support base 7. The crane installation base 11 installs a lifting device through the slewing bearing 2; the protective structure of the slewing bearing assembly is: the first protective bottom plate 3 is fixedly installed on the periphery of the crane installation base 11. The upper part of the first protective bottom plate 3 is installed with the protective cover 4 through bolts. The protective cover 4 surrounds the connection part of the slewing bearing 2 and the crane installation base 11. The protective cover 4 extends to the upper part of the slewing bearing 2 and is vertically installed with the first fixed sliding plate 5. A slide rail assembly 12 is detachably installed on the surface of the slewing bearing 2 below the orthographic projection of the first fixed sliding plate 5. The first fixed sliding plate 5 is slidably installed with the slide rail assembly 12; through the protective cover 4 being hermetically installed at the connection part of the slewing bearing 2 and the crane installation base 11, the hermetic protection of the slewing bearing assembly is realized. Through the sliding installation of the first fixed sliding plate 5 and the slide rail assembly 12, during the rotation of the lifting device, the hermetic protection is still realized.

[0020] In at least one embodiment, the sliding structure of the first fixed sliding plate 5 and the slide rail assembly 12 is: the end face of the first fixed sliding plate 5 away from the protective cover 4 is provided with an arc-shaped chute 13. The slide rail assembly 12 includes a ball base 14. The ball base 14 is snap-fitted and installed with the slewing bearing 2. The end face of the ball base 14 away from the slewing bearing 2 is provided with a ball slide rail 15. Through the sliding arrangement of the ball slide rail 15 and the arc-shaped chute 13, the sliding arrangement of the protective cover 4 and the slewing bearing 2 is realized, and during the rotation of the lifting equipment, the hermetic protection is still realized.

[0021] In at least one embodiment, in order to facilitate the installation of the protective cover 4 on the crane installation base 11, the adopted structure is: the protective cover 4 is arranged in a columnar structure, and the inner diameter is larger than the outer diameters of the slewing bearing 2 and the crane installation base 11.

[0022] The embodiments in the present utility model are only used to illustrate the present utility model and do not constitute a limitation on the scope of the claims. Other substantially equivalent alternatives that can be conceived by those skilled in the art are all within the protection scope of the present utility model.

Claims

1. A crawler lifting equipment chassis protection device, characterized in that: The invention comprises a crawler chassis (1), a slewing bearing (2), a protective bottom plate (3), a protective cover (4), and a fixed slide plate (5). Crawler cross beams (6) are distributed on both sides of the crawler chassis (1). The crawler cross beams (6) are fixedly installed through a support base (7). A crane installation base (11) is fixedly installed on the upper part of the support base (7). The crane installation base (11) is installed with a lifting device through the slewing bearing (2). A protective bottom plate (3) is fixedly installed on the periphery of the crane installation base (11). The protective bottom plate (3) and the crane installation base (11) are coaxially arranged. The protective cover (4) is fixedly installed on the protective bottom plate (3) through bolts. The protective cover (4) extends to the upper part of the crane installation base (11) and is vertically installed with a fixed slide plate (5). A slide rail assembly (12) is detachably installed on the surface of the slewing bearing (2) below the positive projection of the fixed slide plate (5). The fixed slide plate (5) and the slide rail assembly (12) are slidably installed.

2. A crawler lifting equipment chassis protection device according to claim 1, characterized in that: The end surface of the fixed slide plate 1 (5) away from the protective cover (4) is arranged as an arc-shaped slide groove (13).

3. A crawler lifting equipment chassis protection device according to claim 2, characterized in that: The slide rail assembly (12) comprises a ball bearing base (14), the ball bearing base (14) is mounted in a snap connection with the slewing bearing (2), the end surface of the ball bearing base (14) away from the slewing bearing (2) is arranged as a ball bearing slide rail (15), and the ball bearing slide rail (15) is slidably arranged with the arc-shaped slide groove (13).

4. The crawler lifting equipment chassis protection device according to claim 1, characterized in that: The protective cover (4) is provided in a columnar structure, and its inner diameter is larger than the outer diameters of the slewing bearing (2) and the crane mounting base (11).

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