Telescopic adjustable drilling balancer

Abstract

The utility model discloses a telescopic adjusting type drilling balancer which comprises an inner core, a lining, a bearing bush sleeve, a telescopic connecting arm and an outer supporting plate. The inner core comprises a shaft neck, the shaft neck is sleeved with the lining, the lining is rotatably sleeved with the bearing bush sleeve, the bearing bush sleeve comprises bearing bushes and a supporting sleeve, and the multiple bearing bushes are all installed on the inner side of the supporting sleeve and rotatably surround the lining; the telescopic connecting arm comprises a fixed arm and an adjusting arm, one end of the fixed arm is connected with the supporting sleeve, the fixed arm is provided with a first connecting mechanism, one end of the adjusting arm is movably installed at the other end of the fixed arm and can adjust the position back and forth, one end of the adjusting arm is provided with a second connecting mechanism, and the second connecting mechanism is detachably connected with the first connecting mechanism. And the outer supporting plate is welded with the other end of the adjusting arm. Position deviation of the drill bit during drilling can be effectively reduced, balance of drilling action of the drill bit is kept, drilling construction precision is guaranteed, probability of damage of the drill bit is reduced, and the drill bit can adapt to wells or holes with different diameters.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment, and in particular to a retractable and adjustable borehole balancer. Background Technology

[0002] The construction of drilling or pile driving is inseparable from the use of drilling equipment, which usually includes a drill bit and a power unit such as a motor. The power unit can be connected to the drill bit through a connecting shaft, so that the power unit can drive the drill bit to rotate.

[0003] However, in actual drilling or piling operations, it has been found that the drill bit is subjected to significant forces during the drilling process, resulting in substantial vibrations. Furthermore, the local geological strength at the construction site often varies, and environmental factors such as temperature and wind speed also change. In other words, there are many external environmental factors, which can affect the movement of the drill bit in different ways. This can lead to significant deviations in the drill bit during the drilling process, affecting the accuracy of drilling or piling operations, and in severe cases, even damaging the drill bit. Utility Model Content

[0004] The purpose of this utility model is to provide a telescopic adjustable borehole balancer, which can maintain the balance of the drill bit's drilling action, thereby ensuring the accuracy of drilling or piling operations and reducing the probability of drill bit damage; the borehole balancer also adopts a telescopic connecting arm, which can adapt to wells or holes of different diameters.

[0005] To solve the above-mentioned technical problems, this utility model provides a telescopic adjustable drilling balancer, including an inner core, a bushing, a bearing sleeve, a telescopic connecting arm, and an outer support plate. The inner core includes a journal, the bushing is sleeved outside the journal, the bearing sleeve is rotatably sleeved on the bushing, the bearing sleeve includes a bearing and a support sleeve, there are multiple bearings, all of which are installed inside the support sleeve and rotatably surround the bushing. The telescopic connecting arm includes a fixed arm and an adjusting arm, one end of the fixed arm is connected to the support sleeve, a first connecting mechanism is provided on the fixed arm, one end of the adjusting arm is movably mounted on the other end of the fixed arm and can be adjusted back and forth on the other end of the fixed arm, a second connecting mechanism is provided on one end of the adjusting arm, the second connecting mechanism is detachably connected to the first connecting mechanism, and the outer support plate is welded to the other end of the adjusting arm.

[0006] The beneficial effects of this utility model are as follows: In this utility model, the inner core can be connected to the drill bit, and the outer support plate can abut against the wall of the drilled hole. Therefore, when the drill bit rotates, the inner core rotates with it, avoiding obstruction to the drilling operation. Simultaneously, the outer support plate maintains its relative position with the inner core, thereby maintaining the relative position of the drilled hole wall and the drill bit. This effectively reduces positional displacement of the drill bit during drilling, maintains the balance of the drill bit's drilling action, ensures the accuracy of drilling or piling operations, and reduces the probability of drill bit damage. In this utility model, by adjusting the connection position of the adjusting arm on the fixed arm, the length of the telescopic connecting arm can be adjusted, thereby adjusting the distance between the outer support plate and the support sleeve, thus adapting to wells or holes of different diameters.

[0007] In the above technical solution, the inner core includes a first flange and a second flange. The first flange is welded to the top of the journal and has multiple first connecting holes. The second flange is welded to the bottom of the journal and has multiple second connecting holes. The first flange facilitates the connection between the inner core and the output shaft of an external power device and ensures sufficient connection area between the inner core and the output shaft, thereby improving its reliability. The second flange facilitates the connection between the inner core and the drill bit and ensures sufficient connection area between the inner core and the drill bit, thereby improving its reliability.

[0008] In the above technical solution, the inner core includes a first surrounding plate and a second surrounding plate, which are spaced apart and fitted onto the middle of the journal. The upper end of the bushing is welded to the first surrounding plate, and the lower end of the bushing is welded to the second surrounding plate. A receiving space is formed between the first and second surrounding plates, and a bearing sleeve can be embedded in the receiving space. By setting the first and second surrounding plates, a bushing with a diameter larger than the inner core can be welded and positioned, and the receiving space can effectively accommodate the bearing sleeve.

[0009] In the above technical solution, the inner core includes a plurality of first reinforcing ribs and second reinforcing ribs. One side of each of the first reinforcing ribs is welded to the inner core, and the other side of each of the first reinforcing ribs is welded to a first surrounding plate. Similarly, one side of each of the second reinforcing ribs is welded to the inner core, and the other side of each of the second reinforcing ribs is welded to a second surrounding plate. The placement of the first reinforcing ribs effectively improves the strength of the first surrounding plate, and the placement of the second reinforcing ribs effectively improves the strength of the second surrounding plate.

[0010] In the above technical solution, gaskets are provided between the bearing sleeve within the accommodating space and the first and second surrounding plates, respectively. The gaskets prevent direct contact between the first or second surrounding plate and the bearing sleeve within the accommodating space, thereby reducing frictional damage during the rotation of the inner core.

[0011] In the above technical solution, the outer side of the bearing bush's support sleeve is provided with multiple bosses, and the number of telescopic connecting arms and outer support plates are both multiple. One end of the fixed arm of each of the multiple telescopic connecting arms is welded to a corresponding boss. The bosses ensure sufficient connection space with the telescopic connecting arms.

[0012] In the above technical solution, there are four bosses, four retractable connecting arms, and four outer support plates, with the four retractable connecting arms arranged in a cross shape. This cross-shaped arrangement ensures the symmetry and stability of the forces applied.

[0013] In the above technical solution, the fixed arm includes a square steel body, and the adjusting arm includes a square steel sleeve, with one end of the square steel sleeve movably fitted onto the other end of the square steel body. The structure of the square steel body and the square steel sleeve provides good connection stability.

[0014] In the above technical solution, the first connecting mechanism includes a first upper connecting plate and a first lower connecting plate. The first upper connecting plate is welded to the upper side of the square steel body, and the first lower connecting plate is welded to the lower side of the square steel body. The first upper connecting plate and the first lower connecting plate are each provided with a plurality of first connecting holes spaced apart along their length. The second connecting mechanism includes a second upper connecting plate and a second lower connecting plate. The second upper connecting plate is welded to the upper side of the square steel sleeve and corresponds to the first upper connecting plate. The second lower connecting plate is welded to the lower side of the square steel sleeve and corresponds to the first lower connecting plate. The second upper connecting plate and the second lower connecting plate are each provided with a second connecting hole, and the second connecting hole and the corresponding first connecting hole can be connected by screws. By loosening or tightening the screws, the first connecting mechanism and the second connecting structure can be connected or disassembled.

[0015] In the above technical solution, two second upper connecting plates are arranged side by side, and the first upper connecting plate is located between the two second upper connecting plates. Two second lower connecting plates are arranged side by side, and the first lower connecting plate is located between the two second lower connecting plates. By using two second upper connecting plates and two second lower connecting plates, the connection stability can be further improved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the retractable and adjustable borehole balancer of this utility model.

[0017] Figure 2 This is a longitudinal sectional view of the retractable adjustable borehole balancer of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the inner core and bushing of this utility model.

[0019] Figure 4This is a structural schematic diagram of the bearing sleeve, telescopic connecting arm, and outer support plate of this utility model. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] This utility model provides a retractable adjustable drilling balancer, including an inner core 1, a bushing 2, a bearing sleeve 3, a retractable connecting arm 4, and an outer support plate 5. The inner core 1 includes a journal 11, the bushing 2 is sleeved outside the journal 11, and the bearing sleeve 3 is rotatably sleeved on the bushing 2. The bearing sleeve 3 includes bearings 31 and a support sleeve 32. There are multiple bearings 31, all of which are installed inside the support sleeve 32 and rotatably surround the bushing 2. The retractable connecting arm 4... The retractable connecting arm 4 includes a fixed arm 41 and an adjusting arm 42. One end of the fixed arm 41 is connected to the support sleeve 32. A first connecting mechanism 43 is provided on the fixed arm 41. One end of the adjusting arm 42 is movably mounted on the other end of the fixed arm 41 and can be adjusted back and forth on the other end of the fixed arm 41. A second connecting mechanism 44 is provided on one end of the adjusting arm 42. The second connecting mechanism 44 is detachably connected to the first connecting mechanism 43. The outer support plate 5 is welded to the other end of the adjusting arm 42.

[0022] The beneficial effects of this utility model are as follows: In this utility model, the inner core 1 can be connected to the drill bit, and the outer support plate 5 can abut against the wall of the drilled hole. Therefore, when the drill bit rotates, the inner core 1 can rotate with the drill bit, thus avoiding obstruction to the drilling operation of the drill bit. Simultaneously, the outer support plate 5 can maintain its relative position with the inner core 1, thereby maintaining the relative position of the drilled hole wall and the drill bit. This effectively reduces the positional displacement of the drill bit during drilling, maintains the balance of the drill bit's drilling action, and ensures the accuracy of drilling or piling operations, reducing the probability of drill bit damage. In this utility model, by adjusting the connection position of the adjusting arm 42 on the fixed arm 41, the length of the telescopic connecting arm 4 can be adjusted, thereby adjusting the distance between the outer support plate 5 and the support sleeve 32, thus adapting to wells or holes of different diameters.

[0023] In the above technical solution, the inner core 1 includes a first flange 12 and a second flange 13. The first flange 12 is welded to the top end of the journal 11 and has multiple first connecting holes 121. The second flange 13 is welded to the bottom end of the journal 11 and has multiple second connecting holes 131. The first flange 12 facilitates the connection between the inner core 1 and the output shaft of an external power device and ensures sufficient connection area between the inner core 1 and the output shaft, thereby improving its reliability. The second flange 13 facilitates the connection between the inner core 1 and the drill bit and ensures sufficient connection area between the inner core 1 and the drill bit, thereby improving its reliability.

[0024] In the above technical solution, the inner core 1 includes a first surrounding plate 14 and a second surrounding plate 15. The first surrounding plate 14 and the second surrounding plate 15 are sleeved vertically on the middle part of the journal 11. The upper end of the bushing 2 is welded to the first surrounding plate 14, and the lower end of the bushing 2 is welded to the second surrounding plate 15. An accommodating space is formed between the first surrounding plate 14 and the second surrounding plate 15, and a bearing sleeve 3 can be embedded in the accommodating space. By setting the first surrounding plate 14 and the second surrounding plate 15, the bushing 2, whose diameter is larger than that of the inner core 1, can be welded and positioned. By setting the accommodating space, the bearing sleeve 3 can be effectively adapted.

[0025] In the above technical solution, the inner core 1 includes a plurality of first reinforcing ribs 16 and second reinforcing ribs 17. One side of the plurality of first reinforcing ribs 16 is welded to the inner core 1, and the other side of the plurality of first reinforcing ribs 16 is welded to the first surrounding plate 14. One side of the plurality of second reinforcing ribs 17 is welded to the inner core 1, and the other side of the plurality of second reinforcing ribs 17 is welded to the second surrounding plate 15. The arrangement of the first reinforcing ribs 16 can effectively improve the strength of the first surrounding plate 14, and the arrangement of the second reinforcing ribs 17 can effectively improve the strength of the second surrounding plate 15.

[0026] In the above technical solution, gaskets 6 are respectively provided between the bearing sleeve 3 within the accommodating space and the first surrounding plate 14 and the second surrounding plate 15. The gaskets 6 can prevent direct contact between the first surrounding plate 14 or the second surrounding plate 15 and the bearing sleeve 3 within the accommodating space, thereby reducing frictional damage between them when the inner core 1 rotates.

[0027] In the above technical solution, the outer side of the support sleeve 32 of the bearing bush 3 is provided with multiple bosses 321, and the number of telescopic connecting arms 4 and outer support plates 5 are multiple. One end of the fixed arm 41 of each of the multiple telescopic connecting arms 4 is welded to the corresponding boss 321. The setting of the bosses 321 can facilitate ensuring sufficient connection space with the telescopic connecting arms 4.

[0028] In the above technical solution, there are four protrusions 321, four retractable connecting arms 4, and four outer support plates 5, with the four retractable connecting arms 4 arranged in a cross shape. This cross-shaped arrangement ensures the symmetry and stability of the forces applied.

[0029] In the above technical solution, the fixed arm 41 includes a square steel body, and the adjusting arm 42 includes a square steel sleeve, with one end of the square steel sleeve movably fitted onto the other end of the square steel body. The structure of the square steel body and the square steel sleeve provides good connection stability.

[0030] In the above technical solution, the first connecting mechanism 43 includes a first upper connecting plate 431 and a first lower connecting plate 432. The first upper connecting plate 431 is welded to the upper side of the square steel body, and the first lower connecting plate 432 is welded to the lower side of the square steel body. The first upper connecting plate 431 and the first lower connecting plate 432 are respectively provided with a plurality of first connecting holes 433 at intervals along the length direction. The second connecting mechanism 44 includes a second upper connecting plate 441 and a second lower connecting plate 442. The second upper connecting plate 441 is welded to the upper side of the square steel sleeve and corresponds to the first upper connecting plate 431. The second lower connecting plate 442 is welded to the lower side of the square steel sleeve and corresponds to the first lower connecting plate 432. The second upper connecting plate 441 and the second lower connecting plate 442 are respectively provided with second connecting holes 443. The second connecting holes 443 and the corresponding first connecting holes 433 can be connected by screws. By loosening or tightening the screws, the first connecting mechanism 43 and the second connecting mechanism 44 can be connected or disassembled.

[0031] In the above technical solution, two second upper connecting plates 441 are arranged side by side, and the first upper connecting plate 431 is located between the two second upper connecting plates 441. Two second lower connecting plates 442 are arranged side by side, and the first lower connecting plate 432 is located between the two second lower connecting plates 442. By using two second upper connecting plates 441 and two second lower connecting plates 442, the connection stability can be further improved.

[0032] When this telescopic adjustable borehole balancer is used in construction such as drilling or piling, the first connecting plate 12 on the top of the inner core 1 can be fixedly connected to the output shaft of an external power device such as a motor by bolts, while the second connecting plate 16 on the bottom of the inner core 1 is fixedly connected to the drill bit by bolts, and the outer support plate 5 can abut against the inner wall of the drilled hole, such as a well hole or a pile hole.

[0033] At this time, the external power unit can drive the inner core 1 to rotate, and the drill bit can rotate with the inner core 1 to perform drilling work. When the inner core 1 rotates, the bushing 2 can rotate relative to the bearing sleeve 3, so the bearing sleeve 3 can maintain a fixed state. Thus, the outer support plate 5, which is connected to the bearing sleeve 3 through the telescopic connecting arm 4, can also effectively maintain abutment against the inner wall of the drilled hole. Furthermore, the bearing sleeve 3 can limit the inner core 1, so that the inner core 1 can only perform rotational movements. This can effectively reduce the positional displacement of the inner core 1, that is, the position of the drill bit connected to the inner core 1 can also be effectively limited. This can effectively reduce the positional displacement of the drill bit during drilling, maintain the balance of the drill bit's drilling action, and thus ensure the accuracy of drilling or piling operations, and reduce the probability of drill bit damage. When the inner diameter of the drilled hole (such as a well hole or pile hole) needs to be adjusted, the length of the telescopic connecting arm can be adjusted by adjusting the connection position of the adjusting arm on the fixed arm, thereby adjusting the distance between the outer support plate and the support sleeve, so as to adapt to wells or holes of different diameters.

[0034] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A retractable and adjustable borehole balancer, characterized in that: The device includes an inner core, a bushing, a bearing sleeve, a telescopic connecting arm, and an outer support plate. The inner core includes a journal, the bushing is fitted outside the journal, the bearing sleeve is rotatably fitted onto the bushing, the bearing sleeve includes a bearing and a support sleeve, there are multiple bearings, all of which are installed inside the support sleeve and rotatably surround the bushing. The telescopic connecting arm includes a fixed arm and an adjusting arm. One end of the fixed arm is connected to the support sleeve, and a first connecting mechanism is provided on the fixed arm. One end of the adjusting arm is movably mounted on the other end of the fixed arm and can be adjusted back and forth on the other end of the fixed arm. A second connecting mechanism is provided on one end of the adjusting arm, and the second connecting mechanism is detachably connected to the first connecting mechanism. The outer support plate is welded to the other end of the adjusting arm.

2. The retractable adjustable borehole balancer according to claim 1, characterized in that: The inner core includes a first flange and a second flange. The first flange is welded to the top of the journal and has multiple first connecting holes. The second flange is welded to the bottom of the journal and has multiple second connecting holes.

3. The retractable adjustable borehole balancer according to claim 1, characterized in that: The inner core includes a first surrounding plate and a second surrounding plate, which are spaced apart and fitted onto the middle of the journal. The upper end of the bushing is welded to the first surrounding plate, and the lower end of the bushing is welded to the second surrounding plate. An accommodating space is formed between the first surrounding plate and the second surrounding plate, and a bearing bush can be embedded in the accommodating space.

4. The retractable adjustable borehole balancer according to claim 3, characterized in that: The inner core includes a plurality of first reinforcing ribs and second reinforcing ribs. One side of the plurality of first reinforcing ribs is welded to the inner core, and the other side of the plurality of first reinforcing ribs is welded to a first surrounding plate. One side of the plurality of second reinforcing ribs is welded to the inner core, and the other side of the plurality of second reinforcing ribs is welded to a second surrounding plate.

5. The retractable adjustable borehole balancer according to claim 3, characterized in that: Gaskets are provided between the bearing sleeve and the first and second enclosure plates within the accommodating space.

6. The retractable adjustable borehole balancer according to claim 1, characterized in that: The bearing bush has multiple bosses on the outer side of the support sleeve, and there are multiple telescopic connecting arms and external support plates. One end of the fixed arm of each telescopic connecting arm is welded to the corresponding boss.

7. The retractable adjustable borehole balancer according to claim 6, characterized in that: The number of the boss, the retractable connecting arm and the outer support plate are four each, and the four retractable connecting arms are arranged in a cross shape.

8. The retractable adjustable borehole balancer according to claim 6, characterized in that: The fixed arm includes a square steel body, and the adjusting arm includes a square steel sleeve, with one end of the square steel sleeve movably fitted onto the other end of the square steel body.

9. The retractable adjustable borehole balancer according to claim 8, characterized in that: The first connecting mechanism includes a first upper connecting plate and a first lower connecting plate. The first upper connecting plate is welded to the upper side of the square steel body, and the first lower connecting plate is welded to the lower side of the square steel body. The first upper connecting plate and the first lower connecting plate are respectively provided with a plurality of first connecting holes at intervals along the length direction. The second connecting mechanism includes a second upper connecting plate and a second lower connecting plate. The second upper connecting plate is welded to the upper side of the square steel sleeve and corresponds to the first upper connecting plate. The second lower connecting plate is welded to the lower side of the square steel sleeve and corresponds to the first lower connecting plate. The second upper connecting plate and the second lower connecting plate are respectively provided with second connecting holes. The second connecting holes and the corresponding first connecting holes can be connected by screws.

10. The retractable adjustable borehole balancer according to claim 9, characterized in that: The second upper connecting plate consists of two pieces arranged side by side, and the first upper connecting plate is located between the two second upper connecting plates. The second lower connecting plate consists of two pieces arranged side by side, and the first lower connecting plate is located between the two second lower connecting plates.

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