Bucket wheel machine cantilever adjusting device

Abstract

The utility model discloses a bucket wheel machine cantilever adjusting device, and relates to the technical field of bucket wheel machine cantilever adjustment. The utility model relates to a telescopic cantilever crane which comprises a main cantilever, a first extension cantilever crane, a second extension cantilever crane, a cable fixing box and a telescopic sleeve, and the side end of the main cantilever is respectively provided with a stretchable first extension cantilever crane and a stretchable second extension cantilever crane. According to the utility model, the positioning boxes at the front ends of the plurality of cable fixing boxes are arranged to cooperate with the pressing plate to fix the plurality of spring cables in a segmented manner, and the telescopic sleeves are adopted to prevent the plurality of spring cables from being exposed in the air, so that the dustproof protection effect on the plurality of spring cables is realized under the condition that the stretching of the spring cables is not influenced; and meanwhile, in order to further support the spring cable, a plurality of metal rings are arranged in the wall body of the telescopic sleeve, so that when the middle section of the spring cable sinks due to gravity, the metal rings abut against the sleeve rod and the stretching rod to support the spring cable in the telescopic sleeve.

Description

Technical Field

[0001] This utility model belongs to the field of bucket wheel excavator cantilever adjustment, specifically, it relates to a bucket wheel excavator cantilever adjustment device. Background Technology

[0002] Bucket wheel excavators are used for loading and unloading materials. The cantilever of the bucket wheel excavator is an important component of the excavator, mainly used to drive the bucket wheel to perform material loading and unloading operations. According to the boom luffing method, the bucket wheel excavator cantilever can be divided into two types: boom luffing type and integral luffing type.

[0003] When the boom of a bucket wheel excavator is adjusted in length, the cables used to control the boom and power supply need to be stretched and changed synchronously. In order to adapt to the boom's amplitude change, spring cables are used. However, since the spring cables are not supported, they will sag in the middle as the usage time increases. Furthermore, since the spring cables are exposed to the outside, they are easily damaged by the external environment during long-term use, which affects the normal use of the cables. This makes the boom very inconvenient and unsafe during use. In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a bucket wheel excavator cantilever adjustment device.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A bucket wheel excavator cantilever adjustment device includes a main cantilever, a first extension boom, a second extension boom, a cable fixing box, and a telescopic sleeve. The side ends of the main cantilever are respectively provided with a stretchable first extension boom and a second extension boom. A feeding belt for conveying materials is provided in the middle of the first extension boom and the second extension boom. The front ends of the main cantilever, the first extension boom, and the second extension boom are all fixed with leveling pads. The front ends of multiple leveling pads are all fixed with cable fixing boxes for installing spring cables. Both sides of each cable fixing ring are fixed with docking rings for installing telescopic sleeves. The docking ring located in front of the second extension boom is connected to the side end of the controller through a connecting sleeve.

[0007] Telescopic rods are connected between the multiple cable fixing boxes, and each telescopic rod consists of a sleeve rod and a tension rod;

[0008] Each of the aforementioned telescopic sleeves has multiple metal rings inside its wall.

[0009] Optionally, the front end of each leveling pad is symmetrically fixed with a guide rod for longitudinal movement of the sleeve block, the sleeve block is fixedly installed on the back of the positioning support, the front end of the positioning support is provided with a groove for installation of the spring cable at equal intervals, and the upper and lower ends of the positioning support are fixed with L-shaped strips for installation of the pressing plate.

[0010] Optionally, the front end of each L-shaped strip is provided with a spring pin, the pin head of the spring pin penetrates through the fixing hole in the middle of the pressing plate, the middle of the pressing plate is provided with a cavity for installation of a plurality of pressing blocks, each pressing block is in contact with the cavity and is provided with a return spring, and the contact surface of each pressing block and the spring cable is fixed with a rubber block.

[0011] Optionally, the lower side of the positioning support is provided with a buffer box, the buffer box is fixed on the front end of the cable fixing box through screws, and the buffer box is internally provided with a plurality of damping rods, the telescopic end of each damping rod penetrates through the top of the buffer box and is fixed with a bearing support on the bottom of the positioning support, and the telescopic end of each damping rod is sleeved with a buffer spring, and the upper and lower ends of the buffer spring are respectively in contact with the bearing support and the buffer box.

[0012] Optionally, a dustproof organ case is installed between the buffer box and the bearing support.

[0013] Optionally, the front end of each cable fixing box is provided with a protective cover.

[0014] After the above technical scheme is adopted, the present application has the following advantages compared with the prior art, of course, any product implementing the present application does not necessarily need to achieve all the advantages described below:

[0015] 1. The positioning box at the front end of the plurality of cable fixing boxes cooperates with the pressing plate to fix the plurality of spring cables in sections, and in order to prevent the plurality of spring cables from being exposed to air, a telescopic sleeve is used, that is, without affecting the stretching of the spring cable, the telescopic sleeve plays a dustproof protection role on the plurality of spring cables, and in order to further support the spring cable, a plurality of metal rings are arranged in the wall body of the telescopic sleeve, so that when the middle section of the spring cable sinks due to gravity, the metal ring will be in contact with the sleeve rod and the stretching rod, thereby supporting the spring cable in the telescopic sleeve.

[0016] 2. The buffer box, damping rod, buffer spring and bearing support are cooperated with each other to buffer the spring cable subjected to shaking impact, that is, after the positioning support is subjected to impact, the sleeve block cooperates with the guide rod to move longitudinally, at this time, the bearing support presses the telescopic end of the damping rod downward, so that the buffer spring absorbs the elastic potential energy, and after the spring absorbs the elastic potential energy, the elastic potential energy is released, and the telescopic end of the damping rod is used to suppress the elastic potential energy during the release process, thereby completing the buffering process.

[0017] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings. In the drawings:

[0019] Figure 1 It is a front view of the structure of the present application.

[0020] Figure 2 It is another view of the combined parts structure of the pressure plate, return spring and pressure block in the present application.

[0021] Figure 3 It is a combined parts structure diagram of the buffer box, damping rod and buffer spring in the present application.

[0022] Figure 4 It is another view of the combined parts structure of the positioning support, guide rod and sliding block in the present application.

[0023] Figure 5 It is a part structure diagram of A part in Figure 1

[0024] Figure 6 It is a part structure diagram of B part in Figure 1

[0025] In the drawings, the component list represented by each reference numeral is as follows:

[0026] 1, main cantilever; 2, first extension arm support; 3, second extension arm support; 4, feeding belt; 5, leveling pad; 6, spring cable; 7, cable fixing box; 8, telescopic sleeve; 9, butt joint ring; 10, connecting sleeve; 11, controller; 12, sleeve rod; 13, stretching rod; 14, metal ring; 15, sleeve block; 16, guide rod; 17, pressure plate; 18, L-shaped strip; 19, spring pin; 20, pressure block; 21, return spring; 22, rubber block; 23, buffer box; 24, damping rod; 25, bearing support; 26, buffer spring; 27, dust organ case; 28, protective cover.

[0027] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] The present application will now be further described in detail with reference to the accompanying drawings.

[0029] Please refer to​​Figures 1 to 6 The utility model provides a technical scheme: a kind of dragline crane cantilever adjusting device, including main cantilever 1, first extension arm frame 2, second extension arm frame 3 and cable fixing box 7 and telescopic sleeve 8, the side end of main cantilever 1 is respectively equipped with first extension arm frame 2 and second extension arm frame 3 that can be stretched, and it is equipped with the material feeding belt 4 for conveying material in the middle part of first extension arm frame 2 and second extension arm frame 3, the front end of main cantilever 1, first extension arm frame 2 and second extension arm frame 3 is fixed with leveling pad 5, the front end of multiple leveling pad 5 is fixed with the cable fixing box 7 for spring cable 6 installation, the two sides of each cable fixing ring are fixed with the butt joint ring 9 for telescopic sleeve 8 installation, butt joint ring 9 in front of second extension arm frame 3 is connected with the side end of controller 11 by connecting sleeve 10;

[0030] Multiple cable fixing boxes 7 are connected with telescopic rod, and each telescopic rod is composed of sleeve rod 12 and stretching rod 13.

[0031] Multiple metal rings 14 are arranged in the wall body of each telescopic sleeve 8, when the length of the dragline crane cantilever is adjusted, the cable for controlling the cantilever and power supply needs to be stretched simultaneously, i.e., in order to adapt to the amplitude variation of the cantilever, the cable is a spring cable 6, as the spring cable 6 has no support, the middle section of the spring cable 6 will sink over time, and as the spring cable 6 is exposed to the outside, the cable is easily damaged by the external environment during long-term use, affecting the normal use of the cable, causing the cantilever to be very inconvenient and unsafe during use, the utility model sets the positioning box at the front end of the multiple cable fixing boxes 7, and the pressing plate 17 plays a role in fixing multiple spring cables in sections, and in order to prevent multiple spring cables 6 from being exposed to the air, the telescopic sleeve 8 is used, i.e., without affecting the stretching of the spring cable 6, the telescopic sleeve 8 plays a role in dust protection for multiple spring cables 6, and in order to further support the spring cable 6, multiple metal rings 14 are arranged in the wall body of the telescopic sleeve 8, so that when the middle section of the spring cable 6 sinks due to gravity, the metal ring 14 will be in contact with the sleeve rod 12 and the stretching rod 13, thereby supporting the spring cable 6 in the telescopic sleeve 8, the leveling pad 5 ensures that the positioning support at the front end of the multiple cable fixing boxes 7 is in the same plane, thereby facilitating the installation of the spring cable 6, i.e., the thickness of each leveling pad 5 is different.

[0032] The front end of each leveling pad 5 is symmetrically fixed with a guide rod 16 for longitudinal movement of the sleeve block 15, the sleeve block 15 is fixedly installed on the back of the positioning support, the front end of the positioning support is equally spaced to form a groove for installing the spring cable 6, and the upper and lower ends of the positioning support are fixedly installed with an L-shaped strip 18 for installing the pressing plate 17, and the positioning support is longitudinally moved by the guide rod 16 and the sleeve block 15.

[0033] The front end of each L-shaped strip 18 is provided with a spring pin 19, the pin head of the spring pin 19 penetrates a fixing hole formed in the middle of the pressing plate 17, the middle of the pressing plate 17 is provided with cavities for installing a plurality of pressing blocks 20, each pressing block 20 is in contact with a reset spring 21 between the cavity, and the contact surface of each pressing block 20 and the spring cable 6 is fixed with a rubber block 22, the plurality of grooves in the middle of the positioning support can separate and place the plurality of spring cables 6, and the plurality of pressing blocks 20 can also abut against the spring cables 6 in the groove, thereby further improving the abutting effect on the basis of the abutting of the pressing block 20 and the spring cable 6, and the spring pin 19 can prevent the pressing plate 17 installed by the L-shaped strip 18 from slipping, that is, the pin head of the spring pin 19 penetrates the fixing hole to complete the fixation of the pressing plate 17.

[0034] The lower part of the positioning support is provided with a buffer box 23, the buffer box 23 is fixed on the front end of the cable fixing box 7 through a screw, a plurality of damping rods 24 are installed in the buffer box 23, the telescopic end of each damping rod 24 penetrates the top of the buffer box 23 and is fixed with a bearing support 25 at the bottom of the positioning support, the telescopic end of each damping rod 24 is sleeved with a buffer spring 26, and the upper and lower ends of the buffer spring 26 are in contact with the bearing support 25 and the buffer box 23 respectively, the buffer box 23, the damping rod 24, the buffer spring 26 and the bearing support 25 are matched to buffer the spring cable 6 subjected to shaking impact, that is, the positioning support moves longitudinally through the sleeve block 15 cooperating with the guide rod 16 after being subjected to impact, at this time, the bearing support 25 extrudes the telescopic end of the damping rod 24 downward, so that the buffer spring 26 absorbs the elastic potential energy, and the spring releases the elastic potential energy after absorbing the elastic potential energy, and the telescopic end of the damping rod 24 is used to suppress the elastic potential energy during the release process, thereby completing the buffering process.

[0035] The dustproof organ case 27 is installed between the buffer box 23 and the bearing support 25, which prevents dust from entering the telescopic end of the damping rod 24 and affecting the service life.

[0036] The front end of each cable fixing box 7 is provided with a protective cover 28, the protective cover 28 is arranged outside the cable fixing box 7 to prevent dust from entering the sleeve block 15 and the guide rod 16 at the back of the positioning support, and the side of the protective cover 28 is provided with a gap hole for the spring cable 6 to penetrate, which is not described in detail in the prior art.

[0037] The utility model is not limited to the above-mentioned embodiment, anyone should know that the structural changes made under the inspiration of the utility model fall within the protection scope of the utility model, any technical solution with the same or similar technical solution as the utility model falls within the protection scope of the utility model. The utility model does not describe the technology, shape and structure in detail, which are all known technologies.

Claims

1. A boom adjusting device of a bucket wheel machine, comprising a main boom (1), a first extension arm carrier (2), a second extension arm carrier (3) and a cable fixing box (7) and a telescopic sleeve (8), characterized in that, The side end of the main cantilever (1) is respectively provided with a first stretchable extension arm support (2) and a second stretchable extension arm support (3), a feeding belt (4) for conveying materials is arranged in the middle of the first stretchable extension arm support (2) and the second stretchable extension arm support (3), the front end of the main cantilever (1), the first stretchable extension arm support (2) and the second stretchable extension arm support (3) is fixed with a leveling pad (5), the front end of a plurality of leveling pads (5) is fixed with a cable fixing box (7) for mounting a spring cable (6), the two sides of each cable fixing ring are fixed with a butt joint ring (9) for mounting a telescopic sleeve (8), the butt joint ring (9) in front of the second stretchable extension arm support (3) is connected with the side end of a controller (11) through a connecting sleeve (10); A plurality of the cable fixing boxes (7) are connected with telescopic rods, and each telescopic rod is composed of a sleeve rod (12) and a stretching rod (13); The wall body of each telescopic sleeve (8) is internally provided with a plurality of metal rings (14).

2. A boom adjustment device for an excavator according to claim 1, wherein The front end of each leveling pad (5) is symmetrically fixed with a guide rod (16) for longitudinal movement of a sleeve block (15), the sleeve block (15) is fixedly installed on the back of a positioning support, a plurality of groove bodies for mounting spring cables (6) are arranged at the front end of the positioning support at equal intervals, and the upper and lower ends of the positioning support are fixed with L-shaped strips (18) for mounting pressure plates (17).

3. A boom adjustment device for an excavator according to claim 2, wherein The front end of each L-shaped strip (18) is provided with a spring pin (19), the pin head of the spring pin (19) penetrates a fixing hole formed in the middle of the pressure plate (17), a cavity for mounting a plurality of pressing blocks (20) is formed in the middle of the pressure plate (17), a return spring (21) is arranged between each pressing block (20) and the cavity, and a rubber block (22) is fixed on the contact surface of each pressing block (20) and the spring cable (6).

4. A boom adjustment device for an excavator according to claim 2, wherein A buffer box (23) is arranged below the positioning support, the buffer box (23) is fixed at the front end of the cable fixing box (7) through screws, a plurality of damping rods (24) are arranged in the buffer box (23), the telescopic end of each damping rod (24) penetrates the top of the buffer box (23) and is fixed with a load bearing support (25) at the bottom of the positioning support, a buffer spring (26) is arranged on the telescopic end of each damping rod (24), and the upper and lower ends of the buffer spring (26) respectively abut against the load bearing support (25) and the buffer box (23).

5. A boom adjustment device for an excavator according to claim 4, wherein A dustproof organ case (27) is arranged between the buffer box (23) and the load bearing support (25).

6. A boom adjustment device for an excavator according to claim 1, wherein A protective cover (28) is arranged at the front end of each cable fixing box (7).

Images