Combined crawler frame

Abstract

A combined crawler frame comprises a lower frame body and a first expansion cross beam, a first channel used for containing the first expansion cross beam is formed in the lower frame body, the first expansion cross beam comprises a first end and a second end opposite to the first end, a first crawler beam is installed at the first end of the first expansion cross beam, and a second crawler beam is installed at the second end of the first expansion cross beam. The second end of the first expanding cross beam is located in the first channel, and the first expanding cross beam can slide in the first channel so that the first track beam and the lower vehicle frame body can move relatively. And the first expansion cross beam can also be relatively fixed with the first channel, so that the first track beam is relatively fixed with the lower frame body.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation construction, in particular to a combined crawler frame. Background Art

[0002] Rotary drilling rigs are commonly used in pile foundation construction. Some rotary drilling rigs are equipped with crawler frames with expandable track beams. These crawler frames are typically welded as a single piece, allowing the drill rig to be transported in parts by removing the track beams from the frame during transportation and reassembling them at the construction site. However, to ensure construction safety, large rotary drilling rigs place higher demands on the size of the crawler frame and the expandable width of the crawler beam. The expandable width of the crawler beam is typically based on the size and strength of the crawler frame. Increasing the size of the crawler frame to achieve a larger expansion width and strength increases the difficulty of manufacturing and transportation, leading to higher overall costs. Summary of the Invention

[0003] The utility model provides a combined crawler frame that can be expanded to a large width and is easy to transport and assemble, including a lower frame body and a first expansion beam, a first channel for accommodating the first expansion beam is opened in the lower frame body, the first expansion beam includes a first end and a second end opposite to the first end, a first crawler beam is installed on the first end of the first expansion beam, the second end of the first expansion beam is located in the first channel, the first expansion beam can slide in the first channel to make the first crawler beam and the lower frame body move relative to each other, and the first expansion beam can also be fixed relative to the first channel to make the first crawler beam and the lower frame body relatively fixed.

[0004] Furthermore, it also includes a second expansion beam, which includes a first end and a second end opposite to the first end, a second track beam is installed on the first end of the second expansion beam, and the second end of the second expansion beam is located in the first channel. The second expansion beam can slide in the first channel to enable the second track beam and the lower frame body to move relative to each other, and the second expansion beam can also be fixed relative to the first channel to enable the second track beam and the lower frame body to be fixed relative to each other.

[0005] Furthermore, a second channel is defined in the first expansion beam, and the second channel is used to accommodate the second end of the second expansion beam. The second expansion beam can slide in the second channel, and the second expansion beam can also be fixed relative to the second channel.

[0006] Furthermore, a first positioning hole and a second positioning hole are provided on the first expansion beam, and the first expansion beam is fixed relative to the lower frame body by a first pin inserted into the first positioning hole or the second positioning hole. The first pin is used to pass through the first positioning hole to fix the first expansion beam in the first position, and the first pin is also used to pass through the second positioning hole to fix the first expansion beam in the second position.

[0007] Furthermore, when the first extension beam is located at the first position, the distance between the first crawler beam and the lower frame body is a first interval; when the first extension beam is located at the second position, the distance between the first crawler beam and the lower frame body is a second interval, and the first interval is smaller than the second interval.

[0008] Furthermore, a first pin shaft hole is opened on the first channel, and the first pin can pass through the first pin shaft hole and the first positioning hole in succession to fix the first expansion beam in the first position. The first pin can also pass through the first pin shaft hole and the second positioning hole in succession to fix the first expansion beam in the second position.

[0009] Furthermore, a third positioning hole and a fourth positioning hole are provided on the second expansion beam, and the second expansion beam is relatively fixed to the lower frame body by a second pin inserted into the third positioning hole or the fourth positioning hole. The second pin is used to pass through the third positioning hole to fix the second expansion beam in the third position, and the second pin is also used to pass through the fourth positioning hole to fix the second expansion beam in the fourth position.

[0010] Furthermore, when the second extension beam is located at the third position, the distance between the second track beam and the lower frame body is a third interval; when the second extension beam is located at the fourth position, the distance between the second track beam and the lower frame body is a fourth interval, and the third interval is smaller than the fourth interval.

[0011] Furthermore, a second pin shaft hole is provided on the first channel, and the second pin can pass through the second pin shaft hole and the third positioning hole in succession to fix the second expansion beam in the third position. The second pin can also pass through the second pin shaft hole and the fourth positioning hole in succession to fix the second expansion beam in the fourth position.

[0012] Furthermore, the first latch and / or the second latch can pass through the lower frame body, the first extension beam, and the second extension beam, so as to fix the lower frame body, the first extension beam, and the second extension beam into one body.

[0013] The combined crawler frame provided by the utility model can adjust the size of the crawler frame according to construction requirements through the lower frame body with adjustable width expansion, and can adapt to different construction environments and rotary drilling rigs. The equipment has strong adaptability, flexibility, safety and maneuverability. The various parts in the utility model can be disassembled for manufacturing, assembly and transportation. Under the premise of limited overall increase in the volume and area of ​​the crawler frame, the expandable width of the crawler beam is increased. At the same time, it is convenient for rapid assembly and disassembly on site, which reduces transportation costs and equipment installation time, and effectively shortens the project construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the combined crawler frame provided by the utility model.

[0015] Figure 2 This is a schematic diagram showing that the first expansion beam is located at the first position and the second expansion beam is located at the third position in the present invention.

[0016] Figure 3 This is a schematic diagram of the second pin shaft hole and the latch baffle provided by the present invention. DETAILED DESCRIPTION

[0017] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the present invention is described in detail below with reference to the accompanying drawings and preferred embodiments.

[0018] It should be noted that the terms "first", "second", "third", "fourth", etc. in the description and claims of the present utility model are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0019] See also Figures 1 to 2The combined track frame of the present invention is approximately in the shape of an "I" character, and is also a horizontal "H" character, which includes a lower frame body 1, a first extension beam 2 and a second extension beam 4. A first channel 11 for accommodating the first extension beam 2 is opened in the lower frame body 1, the first extension beam 2 includes a first end and a second end opposite to the first end, a first crawler beam 3 is installed on the first end of the first extension beam 2, the first crawler beam 3 is vertically assembled with the first extension beam 2 through a pin shaft, and the second end of the first extension beam 2 is located in the first channel 11, the second extension beam 4 also includes a first end and a second end opposite to the first end, a second crawler beam 5 is installed on the first end of the second extension beam 4, the second crawler beam 5 is vertically assembled with the second extension beam 4 through a pin shaft, and the second end of the second extension beam 4 is located in the first channel 11. Specifically, in this embodiment, two first channels 11 are respectively provided at the front and rear of the lower frame body 1 of the present invention. The first channels 11 are also correspondingly provided with the first extension crossbeam 2 and the second extension crossbeam 4 for mounting the first crawler beam 3 and the second crawler beam 5. The two sets of first channels 11 and the first extension crossbeam 2 and the second extension crossbeam 4 have the same structure and function and do not interfere with each other. In other embodiments of the present invention, the lower frame body 1 may also be provided with more sets of first channels 11 and first extension crossbeam 2 and the second extension crossbeam 4 to accommodate larger first crawler beams 3 and second crawler beams 5. Furthermore, the first extension beam 2 can slide in the first channel 11 to enable the first crawler beam 3 and the lower frame body 1 to move relative to each other, and the first extension beam 2 can also be fixed relative to the first channel 11 to enable the first crawler beam 3 and the lower frame body 1 to be fixed relative to each other, and the second extension beam 4 can slide in the first channel 11 to enable the second crawler beam 5 and the lower frame body 1 to move relative to each other, and the second extension beam 4 can also be fixed relative to the first channel 11 to enable the second crawler beam 5 and the lower frame body 1 to be fixed relative to each other. It is easy to understand that the first track beam 3 and the second track beam 5 are respectively arranged at the end of the first extension beam 2 and the second extension beam 4 extending outside the first channel 11, that is, the first end. Therefore, when the second ends of the first extension beam 2 and the second extension beam 4 slide in the first channel 11, the relative distance between the first track beam 3 and the second track beam 5 and the lower frame body 1 will change. When the first extension beam 2 and the second extension beam 4 stop sliding in the first channel 11 and are relatively fixed to the first channel 11, the relative distance between the first track beam 3 and the second track beam 5 and the lower frame body 1 also stops changing.The utility model realizes adjustment of the size of the crawler frame according to construction requirements through the lower frame body 1, the first expansion beam 2 and the second expansion beam 4 with adjustable relative distances, can adapt to different construction environments and rotary drilling rigs, and the equipment has strong adaptability, flexibility, safety and maneuverability; the lower frame body 1, the first expansion beam 2 and the second expansion beam 4 in the utility model can be disassembled for manufacturing, assembly and transportation, and the expandable width of the crawler beam is increased under the premise of limited overall increase in the volume and area of ​​the crawler frame, and it is also convenient for rapid assembly and disassembly on site, reducing transportation costs and equipment installation time, and effectively shortening the project construction period.

[0020] Furthermore, a second channel is provided in the first expansion beam 2, and the second channel is used to accommodate the second end of the second expansion beam 4. The second expansion beam 4 can slide in the second channel, and the second expansion beam 4 can also be fixed relative to the second channel. Specifically, in this embodiment, a portion of the first expansion beam 2 is located in the first channel 11 in the lower frame body 1, and a portion of the second expansion beam 4 is located in the second channel in the first expansion beam 2. In other words, the lower frame body 1, the first expansion beam 2, and the second expansion beam 4 can slide relative to each other. The present invention maximizes the use of the limited space in the lower frame body 1 by nesting the lower frame body 1, the first expansion beam 2, and the second expansion beam 4 in three layers of inner and outer travel, so that the portion of the first expansion beam 2 and the second expansion beam 4 that can be retracted into the lower frame body 1 is as large as possible, and further, the portion of the first expansion beam 2 and the second expansion beam 4 that can be extended outside the lower frame body 1 is as large as possible, thereby greatly increasing the expandable width of the crawler beam.

[0021] Furthermore, the first expansion beam 2 of the present invention is provided with a first positioning hole and a second positioning hole. The first expansion beam 2 is fixed relative to the lower frame body 1 by a first latch 6 that passes through the first positioning hole or the second positioning hole. The first latch 6 is used to pass through the first positioning hole to fix the first expansion beam 2 in the first position, and the first latch 6 is also used to pass through the second positioning hole to fix the first expansion beam 2 in the second position. Specifically, the first channel 11 is provided with a first pin hole 1a. The first latch 6 can pass through the first pin hole 1a and the first positioning hole in sequence to fix the first expansion beam 2 in the first position. The first latch 6 can also pass through the first pin hole 1a and the second positioning hole in sequence to fix the first expansion beam 2 in the second position. In this embodiment, when the first extension beam 2 is in the first position, the distance between the first crawler beam 3 and the lower frame body 1 is the first interval; when the first extension beam 2 is in the second position, the distance between the first crawler beam 3 and the lower frame body 1 is the second interval. The first interval is smaller than the second interval. That is, the first position corresponds to a relative position relationship in which a larger portion of the first extension beam 2 is retracted into the lower frame body 1 and a smaller portion is extended outside the lower frame body 1, and the distance between the first crawler beam 3 and the lower frame body 1 is smaller. The second position corresponds to a relative position relationship in which a smaller portion of the first extension beam 2 is retracted into the lower frame body 1 and a larger portion is extended outside the lower frame body 1, and the distance between the first crawler beam 3 and the lower frame body 1 is larger.

[0022] Similarly, the second expansion crossbeam 4 of the present invention is provided with a third positioning hole and a fourth positioning hole. The second expansion crossbeam 4 is fixed relative to the lower frame body 1 by a second latch inserted into the third positioning hole or the fourth positioning hole. The second latch is used to pass through the third positioning hole to fix the second expansion crossbeam 4 in the third position. The second latch is also used to pass through the fourth positioning hole to fix the second expansion crossbeam 4 in the fourth position. Specifically, the first channel 11 is provided with a second pin hole 1b. The second latch can pass through the second pin hole 1b and the third positioning hole to fix the second expansion crossbeam 4 in the third position. The second latch can also pass through the second pin hole 1b and the fourth positioning hole to fix the second expansion crossbeam 4 in the fourth position. In this embodiment, when the second extension beam 4 is in the third position, the distance between the second track beam 5 and the lower frame body 1 is the third interval; when the second extension beam 4 is in the fourth position, the distance between the second track beam 5 and the lower frame body 1 is the fourth interval. The third interval is smaller than the fourth interval. That is, the third position corresponds to a relative position relationship in which a larger portion of the second extension beam 4 is retracted into the lower frame body 1, a smaller portion is extended outside the lower frame body 1, and the distance between the second track beam 5 and the lower frame body 1 is smaller. The fourth position corresponds to a relative position relationship in which a smaller portion of the second extension beam 4 is retracted into the lower frame body 1, a larger portion is extended outside the lower frame body 1, and the distance between the first crawler beam 3 and the lower frame body 1 is larger.

[0023] Please also refer to Figure 3, particularly, since the second spread beam 4 is located in the second channel of the first spread beam 2, the first pin 6 can pass through one of the third positioning hole and the fourth positioning hole on the second spread beam 4 after passing through the first pin shaft hole la on the lower frame body 1 and one of the first positioning hole and the second positioning hole on the first spread beam 2 in sequence, and the second pin 7 is the same, the first pin 6 and the second pin 7 thus connect the lower frame body 1, the first spread beam 2 and the second spread beam 4 into one. For example: when the first spread beam 2 is located at the first position and the second spread beam 4 is located at the third position, the first pin 6 passes through the first pin shaft hole la, the first positioning hole and the fourth positioning hole in sequence, and the second pin 7 passes through the second pin shaft hole lb, the second positioning hole and the third positioning hole in sequence; when the first spread beam 2 is located at the first position and the second spread beam 4 is located at the fourth position, the second pin 7 passes through the second pin shaft hole lb, the second positioning hole and the fourth positioning hole in sequence; when the first spread beam 2 is located at the second position and the second spread beam 4 is located at the third position, the first pin 6 passes through the first pin shaft hole la, the second positioning hole and the fourth positioning hole in sequence. As can be easily understood, the first pin shaft hole la and the second pin shaft hole lb are provided with pin stop plates 8, which need to be assembled after the first pin 6 and the second pin 7 are installed in the first pin shaft hole la and the second pin shaft hole lb, so as to prevent the first pin 6 and the second pin 7 from being pulled out of the first pin shaft hole la and the second pin shaft hole lb.

[0024] When assembling the combined crawler frame of the present invention on site, first install the first expansion beam 2 into the first channel 11 of the lower frame body 1, and then install the second expansion beam 4 into the second channel of the first expansion beam 2, and then operate the crawler expansion cylinder to push the first expansion beam 2 and the second expansion beam 4 to the first position and the third position respectively, that is, the first expansion beam 2 and the second expansion beam 4 are moved to a position where the part extending outside the lower frame body 1 is relatively small, and finally the first latch 6 and the second latch 7 are respectively inserted into the first pin shaft hole 1a and the second pin shaft hole 1b. At this time, the first latch 6 and the second latch 7 successively pass through the lower frame body 1, the first expansion beam 2 and the second expansion beam 4 to fix the three together as one, and finally the first crawler beam 3 and the second crawler beam 5 are respectively installed on the first expansion beam 2 and the second expansion beam 4, thus completing the preliminary assembly of the combined crawler frame. If the overall width of the crawler frame needs to be expanded, there is no need to remove the already installed first crawler beam 3 and second crawler beam 5. It is only necessary to remove the latch baffle 8, the first latch 6 and the second latch 7, and then operate the crawler expansion cylinder according to the expansion requirements of the combined crawler frame, push the first expansion beam 2 from the first position to the second position and / or push the second expansion beam 4 from the third position to the fourth position, and insert the first latch 6 and the second latch 7 into the first pin shaft hole 1a and the second pin shaft hole 1b and the corresponding positioning holes on the first expansion beam 2 and the second expansion beam 4, respectively, to complete the width expansion of the combined crawler frame.

[0025] In summary, the combined crawler frame of the utility model can adjust the size of the crawler frame according to construction requirements through the lower frame body with adjustable width expansion, can adapt to different construction environments and rotary drilling rigs, and the equipment has strong adaptability, flexibility, safety and maneuverability; the various components in the utility model can be disassembled for manufacturing, assembly and transportation, and the expandable width of the crawler beam is increased under the premise of limited overall increase in the volume and area of ​​the crawler frame. At the same time, it is convenient for rapid assembly and disassembly on site, reducing transportation costs and equipment installation time, and effectively shortening the project schedule.

[0026] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A combined crawler frame, characterized in that: The invention comprises a lower frame body (1) and a first expansion beam (2); a first channel (11) for accommodating the first expansion beam (2) is provided in the lower frame body (1); the first expansion beam (2) comprises a first end and a second end opposite to the first end; a first crawler beam (3) is mounted on the first end of the first expansion beam (2); the second end of the first expansion beam (2) is located in the first channel (11); the first expansion beam (2) can slide in the first channel (11) so that the first crawler beam (3) and the lower frame body (1) move relative to each other; the first expansion beam (2) can also be fixed relative to the first channel (11) so that the first crawler beam (3) and the lower frame body (1) are fixed relative to each other.

2. The combined crawler frame according to claim 1, wherein: The vehicle body also includes a second expansion beam (4), the second expansion beam (4) including a first end and a second end opposite to the first end, a second crawler beam (5) being mounted on the first end of the second expansion beam (4), the second end of the second expansion beam (4) being located in the first channel (11), the second expansion beam (4) being able to slide in the first channel (11) so that the second crawler beam (5) and the lower frame body (1) can move relative to each other, and the second expansion beam (4) can also be fixed relative to the first channel (11) so that the second crawler beam (5) and the lower frame body (1) can be fixed relative to each other.

3. The combined crawler frame according to claim 2, wherein: A second channel is provided in the first expansion beam (2), and the second channel is used to accommodate the second end of the second expansion beam (4). The second expansion beam (4) can slide in the second channel, and the second expansion beam (4) can also be fixed relative to the second channel.

4. The combined crawler frame according to claim 2, wherein: A first positioning hole and a second positioning hole are provided on the first expansion beam (2); the first expansion beam (2) is fixed relative to the lower frame body (1) by a first latch (6) inserted into the first positioning hole or the second positioning hole; the first latch (6) is used to pass through the first positioning hole to fix the first expansion beam (2) at a first position; the first latch (6) is also used to pass through the second positioning hole to fix the first expansion beam (2) at a second position.

5. The combined crawler frame according to claim 4, characterized in that: When the first expansion beam (2) is located at the first position, the distance between the first crawler beam (3) and the lower frame body (1) is a first distance; when the first expansion beam (2) is located at the second position, the distance between the first crawler beam (3) and the lower frame body (1) is a second distance, and the first distance is smaller than the second distance.

6. The combined crawler frame according to claim 4, wherein: A first pin hole (1a) is provided on the first channel (11); the first latch (6) can successively pass through the first pin hole (1a) and the first positioning hole to fix the first expansion beam (2) at the first position; the first latch (6) can also successively pass through the first pin hole (1a) and the second positioning hole to fix the first expansion beam (2) at the second position.

7. The combined crawler frame according to claim 2, wherein: A third positioning hole and a fourth positioning hole are provided on the second expansion beam (4). The second expansion beam (4) is fixed relative to the lower frame body (1) by a second latch inserted into the third positioning hole or the fourth positioning hole. The second latch is used to pass through the third positioning hole to fix the second expansion beam (4) at the third position. The second latch is also used to pass through the fourth positioning hole to fix the second expansion beam (4) at the fourth position.

8. The combined crawler frame according to claim 7, wherein: When the second expansion cross beam (4) is located at the third position, the distance between the second crawler beam (5) and the lower frame body (1) is a third distance; when the second expansion cross beam (4) is located at the fourth position, the distance between the second crawler beam (5) and the lower frame body (1) is a fourth distance, and the third distance is smaller than the fourth distance.

9. The combined crawler frame according to claim 7, wherein: A second pin hole (1b) is provided on the first channel (11), and the second latch can successively pass through the second pin hole (1b) and the third positioning hole to fix the second expansion beam (4) at the third position. The second latch can also successively pass through the second pin hole (1b) and the fourth positioning hole to fix the second expansion beam (4) at the fourth position.

10. The combined crawler frame according to claim 4, wherein: The lower frame body (1), the first expansion beam (2) and the second expansion beam (4) can be passed through by the first latch (6) to fix the lower frame body (1), the first expansion beam (2) and the second expansion beam (4) into one body.

11. The combined crawler frame according to claim 7, wherein: The lower frame body (1), the first expansion beam (2) and the second expansion beam (4) can be passed through by the second latch to fix the lower frame body (1), the first expansion beam (2) and the second expansion beam (4) into one body.

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