Bracket adaptive to crawler belts of rotary drilling rigs with different widths

Abstract

The utility model discloses a bracket adaptive to crawler belts of rotary drill rigs with different widths, and belongs to the field of crawler belt supporting. The track shoe comprises a track shoe body, a driving wheel and a guiding wheel which are connected through a track frame are arranged on the two sides of the track shoe body, and five adjustable brackets are transversely and evenly distributed at the upper end of the track frame. The adjustable bracket is composed of a fixed base, a two-way threaded rod, a first roller, a second roller, a first sliding base, a second sliding base and a one-way threaded rod. The problems that in the erecting process of an existing crawler belt bracket, only the side face of a crawler belt is supported, the supporting area is small, and comprehensive supporting of the crawler belt cannot be completed are solved; the positions of the first idler wheel and the second idler wheel in the adjustable bracket are adjusted along with rotation of the bidirectional threaded rod and the unidirectional threaded rod, so that the first idler wheel and the second idler wheel are matched with track shoes of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of track support, specifically a bracket adapted to the tracks of roller drills of different widths. Background Technology

[0002] The track bracket is a key component of tracked vehicles, used to support and fix the track system. It is usually made of a metal frame, connecting the vehicle body and track links, bearing the weight of the vehicle and transmitting power. The bracket ensures that the track maintains appropriate tension and running trajectory. Its design must take into account strength, wear resistance and shock absorption function to cope with complex terrain and impact loads. The bracket structure directly affects the track life and vehicle mobility, and is the basic guarantee for the stable operation of the track system.

[0003] Chinese patent CN203996520U discloses an electric shovel roller track bracket, including a drive sprocket, an idler sprocket, and a track frame. A support roller is mounted on the track frame, and track plates are installed on the drive sprocket, idler sprocket, and support roller. Brackets are respectively installed on the track frame between the drive sprocket and the support roller, and between the idler sprocket and the support roller. The design is novel, with a simple and reasonable structure. This bracket uses rollers, and the track plates and rollers generate rolling friction, reducing the friction between them, reducing wear on the bracket from the track plates, extending the bracket's service life, reducing maintenance and replacement frequency, and lowering production costs. At the same time, the bracket is firmly fixed and will not be scraped off by the track plates, further preventing track wear on the gearbox cover.

[0004] During the installation process, the track bracket of the aforementioned patent only supports the side of the track, resulting in a small support area. Furthermore, the track bracket cannot adapt to different track sizes during installation and cannot provide full support for the track. Utility Model Content

[0005] The purpose of this utility model is to provide a bracket that adapts to the track of a roller cone drilling machine with different widths. By adjusting the position of the first and second rollers inside the adjustable bracket as the bidirectional threaded rod and the unidirectional threaded rod rotate, the first and second rollers can be adapted to track plates of different sizes, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bracket adapted to roller cone drill tracks of different widths, comprising a track plate, on both sides of the track plate being a drive wheel and a guide wheel connected by a track frame, and five adjustable brackets evenly distributed laterally at the upper end of the track frame, each adjustable bracket consisting of a fixed base, a bidirectional threaded rod, a first roller, a second roller, a first sliding base, a second sliding base, and a unidirectional threaded rod; support frames welded and fixed to the fixed base are provided on both sides of the upper outer end of the track frame, the bidirectional threaded rod passes through and is located inside the fixed base, the first sliding base is located outside the bidirectional threaded rod, the first roller is located on one side of the first sliding base, and the second roller is located on one side of the first roller.

[0007] Preferably, the first roller is rotatably connected to the first sliding base, the second sliding base is located on one side of the second roller, and one end of the second roller is rotatably connected to one side of the second sliding base.

[0008] Preferably, the bidirectional threaded rod is threadedly engaged with the through position of the first sliding base.

[0009] Preferably, the one-way threaded rod is located at the lower end between the second roller and the first roller, the first roller is rotatably connected to one side of the first sliding base, and the one-way threaded rod is engaged with the external thread of the second sliding base.

[0010] Preferably, the first roller has an extension block extending into the second roller, and the extension block is welded and fixed to the first roller, with the outside of the extension block slidably connected to the inside of the second roller.

[0011] Preferably, the lower inner part of the support frame has a recessed mounting groove, and the mounting groove is connected to the upper outer groove of the track frame.

[0012] Preferably, a bolt is provided through the interior of the mounting groove.

[0013] Preferably, a nut is provided on one side of the bolt, and the inside of the nut engages with the external thread of the bolt.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] When supported by the adjustable bracket, this invention firstly adjusts the distance between the two first sliding bases by rotating the bidirectional threaded rod. The adjustment of the distance between the two first sliding bases can accommodate different sizes of toothed grooves located on the outside of the track plate. Secondly, relative movement can be generated between the unidirectional threaded rod and the second sliding base by twisting the unidirectional threaded rod. During the relative movement, the position of the second roller can be adjusted laterally, and the distance between the second roller and the extension block can be adjusted. By adjusting the distance between the second roller and the extension block, it can accommodate track plates of different widths, track plates of different widths and toothed groove sizes, so that the adjustable bracket can efficiently and comprehensively contact and support the track plate, and accommodate track plates of different sizes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of the adjustable bracket of this utility model;

[0018] Figure 3 This is a schematic diagram of the movement trajectory of the first sliding base of this utility model;

[0019] Figure 4 This is a cross-sectional view of the unidirectional threaded rod transmission structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the external structure of the fixed base of this utility model.

[0021] In the diagram: 1. Drive sprocket; 2. Track roller; 3. Idler roller; 4. Carrier roller; 5. Track frame; 6. Track pad; 7. Support frame; 8. Adjustable bracket; 9. Fixed base; 10. Mounting slot; 11. Bolt; 12. Nut; 13. Double-ended threaded rod; 15. First roller; 16. Second roller; 17. First sliding base; 18. Second sliding base; 19. One-way threaded rod; 20. Extension block. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments.

[0023] like Figure 1 As shown, this embodiment of a bracket for adapting to different widths of roller cone drill tracks includes a track plate 6. A drive wheel 1 and a guide wheel 3 are respectively provided on both sides inside the track plate 6. The guide wheel 3 and the drive wheel 1 support and straighten the two sides inside the track plate 6, so that the track plate 6 can be straightened and transmit power to drive the upper roller cone drill to move. The drive wheel 1 serves as the output position, while the guide wheel 3 is mainly used to straighten and assist the transmission of the track plate 6.

[0024] Among them, the drive wheel 1 and the guide wheel 3 are connected by the track frame 5. The track frame 5 can connect and support the drive wheel 1 and the guide wheel 3 on both sides. The rotary drilling rig can connect and erect the drive wheel 1 and the guide wheel 3 on both sides by connecting the track frame 5.

[0025] In addition, four support rollers 2 are evenly distributed laterally at the lower end between the drive wheel 1 and the guide wheel 3. The four support rollers 2 are rotatably connected to the inside of the track frame 5 to support the track plate 6 at the ground contact position, preventing the track plate 6 from bending towards the track frame 5 due to the protruding part of the ground, and preventing the track plate 6 from breaking easily due to the protruding structure. Support rollers 4 are mirrored on both sides of the upper end between the drive wheel 1 and the guide wheel 3. The two support rollers 4 can support the track plate 6 in the upper area between the drive wheel 1 and the guide wheel 3. The support can prevent the track plate 6 from collapsing and concave towards the track frame 5. The support rollers 4 and the support rollers 2 assist the drive wheel 1 and the guide wheel 3 in straightening and transmitting the track plate 6.

[0026] To prevent the track plate 6 from being recessed and rubbing against the track frame 5, and to prevent the track frame 5 from rubbing against the track plate 6 and causing damage to the track plate 6 and the track frame 5, support frames 7 are provided on both sides of the upper outer end of the track frame 5. The middle recess of the lower inner end of the support frame 7 is provided with a mounting groove 10, and the mounting groove 10 is connected to the upper outer end slot of the track frame 5. When the support frame 7 is installed on the upper outer end of the track frame 5, the track frame 5 is locked outside the mounting groove 10 to prevent the support frame 7 from being damaged.

[0027] The mounting groove 10 has a bolt 11 running through it, and a nut 12 is provided on one side of the bolt 11. The nut 12 is threaded with the bolt 11. After the bolt 11 passes through the support frame 7 and the track frame 5, the nut 12 can rotate outside the bolt 11 so that the support frame 7 can be mounted on the upper end of the track frame 5.

[0028] To prevent the track plate 6 in the area between the drive sprocket 1 and the carrier roller 4 from rubbing against the track frame 5, such as Figure 2 and Figure 3 As shown, five adjustable brackets 8 are evenly distributed laterally on the upper end of the track frame 5. Each adjustable bracket 8 consists of a fixed base 9, a two-way threaded rod 13, a first roller 15, a second roller 16, a first sliding base 17, a second sliding base 18, and a one-way threaded rod 19. The fixed base 9 is welded to the upper end of the support frame 7. The upper structure can be supported and connected by the welding and fixing of the fixed base 9. The support and connection can lift the track plate 6 in the area between the drive wheel 1 and the support roller 4.

[0029] The bidirectional threaded rod 13 passes through the interior of the fixed base 9, and the first sliding base 17 is located outside the bidirectional threaded rod 13. The exterior of the bidirectional threaded rod 13 is threadedly engaged with the through position of the first sliding base 17. The distance between the two first sliding bases 17 can be adjusted by rotating the bidirectional threaded rod 13. The adjustment of the distance can adapt to the thickness of the tooth groove inside the track plate 6.

[0030] Additionally, the first roller 15 is located on one side of the first sliding base 17 and is rotatably connected to the first sliding base 17. The second roller 16 is located on one side of the first roller 15, and the second sliding base 18 is located on one side of the second roller 16, with one end of the second roller 16 rotatably connected to one side of the second sliding base 18. Figure 5 As shown, after being supported by the bidirectional threaded rod 13 and the spacing is adjusted, the first roller 15 and the second roller 16 lift up the track plate 6 at the upper position to avoid unnecessary friction.

[0031] To accommodate track plates of different widths, such as Figure 4 As shown, the one-way threaded rod 19 is located at the lower end between the second roller 16 and the first roller 15. The first roller 15 is rotatably connected to one side of the first sliding base 17. The one-way threaded rod 19 passes through the second sliding base 18 and engages with the external thread of the second sliding base 18. By rotating the one-way threaded rod 19 outside the first sliding base 17, it can generate relative movement with the second sliding base 18. After the second sliding base 18 is restricted by the first sliding base 17, the rotational motion of the first sliding base 17 and the upper second roller 16 can be changed to a lateral linear motion. By adjusting the distance between the second roller 16 and the first roller 15, different widths of track plates 6 can be adapted to avoid the wider track plates 6 not being fully supported by the adjustable bracket 8 and the first roller 15.

[0032] The first roller 15 extends into the second roller 16 with an extension block 20, which is welded and fixed to the first roller 15. The exterior of the extension block 20 is slidably connected to the interior of the second roller 16. When the adjustable bracket 8 and the first roller 15 are adjusted in distance, the extension block 20 slides inside the second roller 16, which improves the stability of the second roller 16 and the first roller 15 in supporting the track plate 6 after the distance is adjusted.

[0033] Working principle: Using the device to support and adapt the track plate 6, the support frame 7 is mounted on the upper end of the track frame 5 through the mounting groove 10. After the bolts 11 pass through the support frame 7 and the track frame 5 in sequence, the support frame 7 is fixed by rotating the nut 12 outside the bolts 11. The rotation of the double-threaded rod 13 can simultaneously generate relative movement with the first sliding base 17. After the first sliding base 17 is restricted by the fixed base 9, it moves laterally relative to the track plate 6, adjusting the distance between the two first rollers 15 to match the size of the tooth groove. Meanwhile, the rotation of the unidirectional threaded rod 19 generates relative movement with the second sliding base 18 and adjusts the position of the second roller 16 laterally, adjusting the distance between the second roller 16 and the first roller 15 so that the distance between the first roller 15 and the second roller 16 matches the width of the track plate 6. The lower two sides of the track plate 6 are completely covered and contacted by the first roller 15 and the second roller 16.

[0034] To further explain the above embodiments, this utility model also provides a method for using a bracket adapted to roller cone drill tracks of different widths, including the following steps:

[0035] S1: The support frame 7 is mounted on the upper end of the track frame 5 through the mounting groove 10. After the bolts 11 pass through the support frame 7 and the track frame 5 in sequence, the nut 12 is rotated outside the bolts 11 to fix the support frame 7.

[0036] S2: Rotate the bidirectional threaded rod 13 to adjust the distance between the two first sliding bases 17 to accommodate toothed grooves of different sizes located outside the track plate 6;

[0037] S3: Rotating the one-way threaded rod 19 generates relative movement with the second sliding base 18, thereby adjusting the position of the second roller 16 laterally and realizing the adjustment of the distance between the second roller 16 and the extension block 20.

[0038] S4: By adjusting the distance between the second roller 16 and the extension block 20, the track plates 6 of different widths and different tooth grooves can be adapted, so that the adjustable bracket can efficiently and fully contact and support the track plates 6.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A bracket adapted to the tracks of roller cone drilling rigs of different widths, comprising track plates (6), characterized in that, The track plate (6) is provided with a drive wheel (1) and a guide wheel (3) connected by a track frame (5) on both sides. Five adjustable brackets (8) are evenly distributed laterally on the upper end of the track frame (5). The adjustable bracket (8) is composed of a fixed base (9), a two-way threaded rod (13), a first roller (15), a second roller (16), a first sliding base (17), a second sliding base (18), and a one-way threaded rod (19). Support frames (7) that are welded and fixed to the fixed base (9) are provided on both sides of the upper outer end of the track frame (5). The two-way threaded rod (13) passes through the interior of the fixed base (9). The first sliding base (17) is located outside the two-way threaded rod (13). The first roller (15) is located on one side of the first sliding base (17). The second roller (16) is located on one side of the first roller (15).

2. The bracket for adapting to different width roller cone drill tracks according to claim 1, characterized in that, The first roller (15) is rotatably connected to the first sliding base (17), and the second sliding base (18) is located on one side of the second roller (16), and one end of the second roller (16) is rotatably connected to one side of the second sliding base (18).

3. The bracket for adapting to different width roller cone drill tracks according to claim 1, characterized in that, The bidirectional threaded rod (13) is threadedly engaged with the first sliding base (17) at the through position.

4. A bracket for adapting to different width roller cone drill tracks according to claim 1, characterized in that, The one-way threaded rod (19) is located at the lower end between the second roller (16) and the first roller (15). The first roller (15) is rotatably connected to one side of the first sliding base (17). The one-way threaded rod (19) is threadedly engaged with the external thread of the second sliding base (18).

5. A bracket for adapting to different width roller cone drill tracks according to claim 4, characterized in that, The first roller (15) has an extension block (20) extending into the second roller (16), and the extension block (20) is welded and fixed to the first roller (15). The outside of the extension block (20) is slidably connected to the inside of the second roller (16).

6. A bracket for adapting to different width roller cone drill tracks according to claim 5, characterized in that, The support frame (7) has a recessed mounting groove (10) at the lower end of its interior, and the mounting groove (10) is connected to the upper end slot of the track frame (5).

7. A bracket for adapting to different width roller cone drill tracks according to claim 6, characterized in that, A bolt (11) is installed through the interior of the mounting groove (10).

8. A bracket for adapting to different width roller cone drill tracks according to claim 7, characterized in that, A nut (12) is provided on one side of the bolt (11), and the inside of the nut (12) is engaged with the external thread of the bolt (11).

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