Balancer for drilling

Abstract

The utility model discloses a balancer for drilling, which comprises an inner core, a bushing, a bearing bush sleeve, a connecting block and a periphery, the inner core comprises a shaft neck, the bushing is sleeved on the shaft neck, the bearing bush sleeve is rotatably sleeved on the bushing, the bearing bush sleeve comprises a plurality of bearing bushes and a support piece, the plurality of bearing bushes are all arranged on the support piece, and the connecting block is arranged on the periphery of the bearing bush sleeve. The multiple bearing bushes rotatably surround the periphery of the lining, one end of the connecting block is connected with the supporting piece, and the other end of the connecting block is connected with the periphery. According to the drill bit, the inner core can be connected with the drill bit, the periphery can abut against the wall of a drilled hole, and the periphery can maintain the relative position of the periphery and the inner core, so that the relative position of the wall of the drilled hole and the drill bit is maintained, the position deviation of the drill bit during drilling can be effectively reduced, and the balance of the drilling action of the drill bit is maintained; therefore, the precision of construction such as drilling or piling is guaranteed, and the probability of drill bit damage is reduced.

Description

Technical Field

[0001] The utility model relates to the field of construction equipment, in particular to a balancer for drilling. Background Art

[0002] The implementation of construction such as drilling or pile driving cannot do without the use of drilling equipment. Drilling equipment usually includes a drill bit and a power device such as a motor. The power device can be connected to the drill bit through a connecting shaft, so that the power device can drive the drill bit to rotate.

[0003] However, it is found in actual construction such as drilling or pile driving that due to the large force on the drill bit during the construction process, large vibrations will occur during the construction process. Moreover, there are often differences in the local geological strength of the construction site or changes in environmental temperature, wind speed, etc., that is, there are many external environmental factors, and different external environmental factors often have different effects on the movement of the drill bit. As a result, during the construction process of the drill bit, large deviations are likely to occur, affecting the accuracy of construction such as drilling or pile driving. Seriously, it may even cause damage to the drill bit. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a balancer for drilling, which can solve one or more of the above problems.

[0005] According to one aspect of the utility model, a balancer for drilling is provided, including an inner core, a bushing, a bearing sleeve, a connecting block and an outer periphery.

[0006] The inner core includes a journal, the bushing is sleeved on the journal, and the bearing sleeve is rotatably sleeved on the bushing.

[0007] The bearing sleeve includes bearing shells and a support member. There are multiple bearing shells, and multiple bearing shells are all installed on the support member. Multiple bearing shells are rotatably arranged around the outer periphery of the bushing.

[0008] One end of the connecting block is connected to the support member, and the other end is connected to the outer periphery.

[0009] The beneficial effect of the utility model is that in the utility model, the inner core can be connected to the drill bit, and the outer periphery can be abutted against the drilled hole wall. Thus, when the drill bit rotates, the inner core can rotate with the rotation of the drill bit to avoid hindering the drilling work of the drill bit of the utility model. At the same time, the outer periphery can maintain its relative position with the inner core, so as to maintain the relative position between the drilled hole wall and the drill bit, thereby effectively reducing the position deviation of the drill bit during drilling, keeping the balance of the drill bit drilling action, ensuring the accuracy of construction such as drilling or pile driving, and reducing the probability of damage to the drill bit.

[0010] In some embodiments, the inner core includes a first connecting plate, a first surrounding plate, and a first reinforcing rib. The first connecting plate is connected to the top end of the journal, the first surrounding plate is sleeved on the journal, the side portion of the first reinforcing rib is connected to the journal, and both ends of the first reinforcing rib are respectively connected to the first connecting plate and the first surrounding plate. A first connecting hole is provided on the first connecting plate. The first connecting plate can facilitate the connection between the inner core and the output shaft of the external power device, and can ensure that there is sufficient connection area between the inner core and the output shaft, thereby improving its reliability. The setting of the first reinforcing rib can effectively improve the setting strength of the first connecting plate.

[0011] In some embodiments, the inner core includes a first baffle plate. The first baffle plate is sleeved on the journal. A first accommodating space is formed between the journal and the first baffle plate and the first surrounding plate. A bearing sleeve can be embedded in the first accommodating space. By providing the first baffle plate and the first surrounding plate, the size of the first accommodating space formed conveniently can effectively match the size of the bearing sleeve.

[0012] In some embodiments, first gaskets are respectively provided between the bearing sleeve in the first accommodating space and the first baffle plate and the first surrounding plate. The setting of the first gaskets can avoid the direct contact between the first baffle plate or the first surrounding plate and the bearing sleeve in the first accommodating space, thereby reducing the frictional damage therebetween when the inner core rotates.

[0013] In some embodiments, the inner core includes a second connecting plate, a second surrounding plate, and a second reinforcing rib. The second connecting plate is connected to the bottom end of the journal, the second surrounding plate is sleeved on the journal, the side portion of the second reinforcing rib is connected to the journal, and both ends of the second reinforcing rib are respectively connected to the second connecting plate and the second surrounding plate. A second connecting hole is provided on the second connecting plate. The second connecting plate can facilitate the connection between the inner core and the drill bit, and can ensure that there is sufficient connection area between the inner core and the drill bit, thereby improving its reliability. The setting of the second reinforcing rib can effectively improve the setting strength of the second connecting plate.

[0014] In some embodiments, the inner core includes a second baffle plate. The second baffle plate is sleeved on the journal. A second accommodating space is formed between the journal and the second baffle plate and the second surrounding plate. A bearing sleeve can be embedded in the second accommodating space. By providing the second baffle plate and the second surrounding plate, the size of the second accommodating space formed conveniently can effectively match the size of the bearing sleeve.

[0015] In some embodiments, second gaskets are respectively provided between the bearing sleeve in the second accommodating space and the second baffle plate and the second surrounding plate. The setting of the second gaskets can avoid the direct contact between the second baffle plate or the second surrounding plate and the bearing sleeve in the second accommodating space, thereby reducing the frictional damage therebetween when the inner core rotates.

[0016] In some embodiments, the bearing sleeve includes connecting plates, and there are bosses provided on the outer side of the support member. Both the bosses and the connecting plates are multiple in number, and the multiple bosses and the multiple connecting plates are connected in one-to-one correspondence. The connecting plates can facilitate the connection with the connecting blocks, and the provision of the bosses can facilitate ensuring sufficient connection space with the connecting blocks.

[0017] In some embodiments, there are multiple connecting blocks. One ends of the multiple connecting blocks are respectively connected to the multiple connecting plates, and the other ends are all connected to the periphery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structural schematic diagram of a balancer for drilling of an embodiment of the present utility model.

[0019] Figure 2 The sectional view of the structural schematic diagram of a balancer for drilling of an embodiment of the present utility model.

[0020] Figure 3 The structural schematic diagram of the inner core of a balancer for drilling of an embodiment of the present utility model.

[0021] Figure 4 The structural schematic diagram of the bearing sleeve of a balancer for drilling of an embodiment of the present utility model.

[0022] In the figure: 1. Inner core, 2. Bushing, 3. Bearing sleeve, 4. Connecting block, 5. Periphery, 6. First gasket, 7. Second gasket, 11. Journal, 12. First connecting plate, 13. First enclosing plate, 14. First reinforcing rib, 15. First baffle, 16. Second connecting plate, 17. Second enclosing plate, 18. Second reinforcing rib, 19. Second baffle, 121. First connecting hole, 161. Second connecting hole, 31. Bearing, 32. Support member, 33. Connecting plate, 321. Boss. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , a balancer for drilling of the present utility model includes an inner core 1, a bushing 2, a bearing sleeve 3, a connecting block 4 and a periphery 5.

[0025] The inner core 1 includes a journal 11, a first connecting plate 12, a first enclosing plate 13, a first reinforcing rib 14, a first baffle 15, a second connecting plate 16, a second enclosing plate 17, a second reinforcing rib 18 and a second baffle 19.

[0026] The first connecting plate 12 is fixedly connected to the top of the journal 11 by welding. The first enclosing plate 13 is fixedly sleeved on the side of the journal 11 by welding. The side of the first reinforcing rib 14 is fixedly connected to the side of the journal 11 by welding. There can be multiple first reinforcing ribs 14. Among each of the first reinforcing ribs 14, one end of the first reinforcing rib 14 is fixedly connected to the bottom of the first connecting plate 12 by welding, and the other end of the first reinforcing rib 14 is fixedly connected to the top of the first enclosing plate 13 by welding. Multiple first connecting holes 121 are provided on the first connecting plate 12. The provision of the first connecting holes 121 facilitates the connection between the first connecting plate 12 and the output shaft of an external power device.

[0027] The first baffle 15 is also fixedly sleeved on the side of the journal 11 by welding. A first accommodating space is formed between the journal 11, the first baffle 15 and the first enclosing plate 13.

[0028] The second connecting plate 16 is fixedly connected to the bottom of the journal 11 by welding. The second enclosing plate 17 is fixedly sleeved on the journal 11 by welding. The side of the second reinforcing rib 18 is fixedly connected to the side of the journal 11 by welding. There can be multiple second reinforcing ribs 18. Among each of the second reinforcing ribs 18, one end of the second reinforcing rib 18 is fixedly connected to the bottom of the second connecting plate 16 by welding, and the other end of the second reinforcing rib 18 is fixedly connected to the top of the second enclosing plate 17 by welding. Multiple second connecting holes 161 are provided on the second connecting plate 16. The provision of the second connecting holes 161 facilitates the connection between the second connecting plate 16 and the drill bit.

[0029] The second baffle 19 is also fixedly sleeved on the side of the journal 11 by welding. A second accommodating space is formed between the journal 11, the second baffle 19 and the second enclosing plate 17. In addition, a plate member is directly connected between the second baffle 19 and the first baffle 15, and the plate member can also be connected to the journal 11 by welding, thereby improving the setting reliability of the second baffle 19 and the first baffle 15 on the journal 11.

[0030] There can be multiple bushings 2 and bearing bush sleeves 3. In this embodiment, two bushings 2 and two bearing bush sleeves 3 are preferably provided. The two bushings 2 are both fixedly sleeved on the journal 11, and the two bushings 2 are respectively arranged in the first accommodating space and the second accommodating space.

[0031] The two bearing bush sleeves 3 are respectively rotatably sleeved on the two bushings 2 in a one-to-one correspondence, and the two bearing bush sleeves 3 are respectively embedded in the first accommodating space and the second accommodating space.

[0032] And first gaskets 6 are respectively provided between the bearing bush sleeve 3 in the first accommodating space and the first baffle 15 and the first enclosing plate 13, and second gaskets 7 are respectively provided between the bearing bush sleeve 3 in the second accommodating space and the second baffle 19 and the second enclosing plate 17.

[0033] In each bearing shell sleeve 3, the bearing shell sleeve 3 includes a bearing shell 31 and a support member 32. There can be multiple bearing shells 31, and the bearing shells 31 are preferably made of wood. All the bearing shells 31 are fixedly embedded on the support member 32. The bearing shells 31 are arranged in a ring shape, and the bearing shells 31 on each bearing shell sleeve 3 rotatably surround the periphery of the corresponding bushing 2.

[0034] In each bearing shell sleeve 3, the bearing shell sleeve 3 further includes a connecting plate 33. A boss 321 is provided on the outer side of the support member 32. There can be multiple bosses 321 and connecting plates 33. In this embodiment, both the boss 321 and the connecting plate 33 are preferably four. The four bosses 321 and the four connecting plates 33 are connected in one-to-one correspondence by welding.

[0035] There can also be multiple connecting blocks 4. In this embodiment, the connecting blocks 4 are preferably eight, and the connecting blocks 4 are preferably I-shaped steel. One end of each connecting block 4 is provided with a connecting plate. The connecting plate 33 on each bearing shell sleeve 3 is connected to the connecting plate of a connecting block 4 by a bolt, and the other ends of all the connecting blocks 4 are fixedly connected to the periphery 5 by bolts.

[0036] When this drilling balancer is in use, that is, for construction such as drilling or piling, the first connecting plate 12 at the top end of the inner core 1 can be fixedly connected to the output shaft of an external power device such as a motor by a bolt, and the second connecting plate 16 at the bottom end of the inner core 1 is fixedly connected to the drill bit by a bolt. The periphery 5 can be abutted against the inner wall of the drilled hole, such as a well hole or a pile hole.

[0037] At this time, the external power device can drive the inner core 1 to rotate, and the drill bit can rotate with the rotation of the inner core 1 for drilling work. Moreover, when the inner core 1 rotates, the bushing 2 can rotate relative to the bearing shell sleeve 3, then the bearing shell sleeve 3 can maintain a fixed state. Thus, the periphery 5 connected to the bearing shell sleeve 3 by the connecting block 4 can also effectively maintain the state of abutting against the inner wall of the drilled hole, and the bearing shell sleeve 3 can limit the inner core 1, so that the inner core 1 can only make a rotating movement, thereby effectively reducing the position offset of the inner core 1, that is, the position of the drill bit connected to the inner core 1 can also be effectively restricted, thereby effectively reducing the position offset of the drill bit during drilling, maintaining the balance of the drill bit drilling action, thus ensuring the accuracy of construction such as drilling or piling and reducing the probability of damage to the drill bit.

[0038] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the creative concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A balancer for drilling, characterized in that, It includes an inner core, a bushing, a bearing sleeve, a connecting block and an outer periphery. The inner core includes a journal, the bushing is sleeved on the journal, and the bearing sleeve is rotatably sleeved on the bushing. The bearing sleeve includes bearing shells and a support member. There are multiple bearing shells, and the multiple bearing shells are all mounted on the support member. The multiple bearing shells are rotatably arranged around the periphery of the bushing. One end of the connecting block is connected to the support member, and the other end is connected to the outer periphery.

2. The balancer for drilling according to claim 1, wherein, The inner core includes a first connecting plate, a first enclosing plate and a first reinforcing rib. The first connecting plate is connected to the top end of the journal, the first enclosing plate is sleeved on the journal, the side of the first reinforcing rib is connected to the journal, and the two ends of the first reinforcing rib are respectively connected to the first connecting plate and the first enclosing plate. A first connecting hole is provided on the first connecting plate.

3. The balancer for drilling according to claim 2, characterized in that, The inner core includes a first baffle plate. The first baffle plate is sleeved on the journal. A first accommodating space is formed between the journal and the first baffle plate and the first enclosing plate. The bearing sleeve can be embedded in the first accommodating space.

4. The balancer for drilling according to claim 3, characterized in that, First gaskets are respectively provided between the bearing sleeve in the first accommodating space and the first baffle plate and the first enclosing plate.

5. The balancer for drilling according to claim 1, characterized in that, The inner core includes a second connecting plate, a second enclosing plate and a second reinforcing rib. The second connecting plate is connected to the bottom end of the journal, the second enclosing plate is sleeved on the journal, the side of the second reinforcing rib is connected to the journal, and the two ends of the second reinforcing rib are respectively connected to the second connecting plate and the second enclosing plate. A second connecting hole is provided on the second connecting plate.

6. The balancer for drilling according to claim 5, characterized in that, The inner core includes a second baffle plate. The second baffle plate is sleeved on the journal. A second accommodating space is formed between the journal and the second baffle plate and the second enclosing plate. The bearing sleeve can be embedded in the second accommodating space.

7. The balancer for drilling according to claim 6, characterized in that, Second gaskets are respectively provided between the bearing sleeve in the second accommodating space and the second baffle plate and the second enclosing plate.

8. A balancer for drilling according to claim 1, characterized in that, The bearing sleeve includes a connecting plate. There are convex platforms on the outer side of the support member. There are multiple convex platforms and multiple connecting plates, and the multiple convex platforms and the multiple connecting plates are connected in one-to-one correspondence.

9. The balancer for drilling according to claim 8, wherein, There are multiple connecting blocks. One ends of the multiple connecting blocks are respectively connected to the multiple connecting plates, and the other ends are all connected to the outer periphery.

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