Geological exploration drilling centralizing device

Abstract

The invention belongs to the field of geological exploration, and provides a geological exploration drilling centralizing device which comprises a drilling mechanism, the top of the drilling mechanism is connected with a transmission mechanism, the periphery of the transmission mechanism is connected with a centralizer shell, a mounting plate is mounted in the centralizer shell, and a hydraulic cylinder is mounted at the top of the mounting plate; a plurality of pressure relief holes are formed in the periphery of the hydraulic cylinder, and each pressure relief hole is connected with a pressure relief buffer mechanism; the hydraulic cylinder and the pressure relief buffer mechanism are installed in the centralizer shell, the hydraulic cylinder is pressed by the reverse acting force generated after the drilling mechanism is subjected to resistance in the machining process while the centralizer shell is used for centralizing, the internal pressure of the hydraulic cylinder can be effectively relieved through the pressure relief buffer mechanism, and the drilling efficiency is improved. And when the hydraulic cylinder loses pressure, the hydraulic oil entering the pressure relief buffering mechanism is conveyed into the hydraulic cylinder again to push the drilling mechanism to reset, and the situation of inclination and deviation is avoided.

Description

Technical Field

[0001] The invention belongs to the field of geological exploration, in particular to a geological exploration drilling straightening device. Background Art

[0002] Geological exploration is a survey and research activity that uses various means and methods to survey and detect geology, determine the appropriate bearing layer, determine the foundation type based on the bearing capacity of the bearing layer, and calculate the foundation parameters. During the geological exploration drilling process, due to the complexity of the strata and drilling vibration, the borehole is prone to deviate from the verticality, affecting the drilling efficiency and safety. To solve this problem, the geological exploration drilling straightening device came into being.

[0003] In the Chinese patent with publication number CN118327487A, a geological drilling straightening device is mentioned. It includes an installation part and an auxiliary straightening part, the installation part includes two relatively arranged mounting seats, the auxiliary straightening part includes a plurality of auxiliary plates, the plurality of auxiliary plates are evenly connected to the lower sides of the two mounting seats, a guide bar is connected between the auxiliary plate and the mounting seat, the guide bar is detachably connected to a reinforcement plate, and the outside of the auxiliary plate is slidably connected to a tightening plate. The geological drilling straightening device of the present application can extend into the borehole to straighten the drill rod part inside the borehole to avoid the deviation of the drill rod inside the channel, can adapt to the drilling straightening needs in different directions, and is easy to use; the drill rod is straightened at two points inside the borehole through the mounting seat and the auxiliary plate, and the inner diameter of the auxiliary straightening part can be adjusted according to the diameter of the drill rod to adapt to the straightening needs of drill rods of different sizes.

[0004] However, although the existing drilling straightening device can play a straightening role, it cannot absorb the reverse impact force received by the drill bit during the drilling process, resulting in easy deviation after contact with the coal rock layer. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a geological exploration drilling straightening device to solve the problem in the prior art that the reverse impact force exerted on the drill bit during drilling cannot be absorbed during the drilling straightening process, resulting in easy deviation after contacting the coal rock layer.

[0006] A geological exploration drilling straightening device, comprising:

[0007] A drilling mechanism, wherein the top of the drilling mechanism is connected to a transmission mechanism, the periphery of the transmission mechanism is connected to a centralizer housing, a mounting plate is installed inside the centralizer housing, a hydraulic cylinder is installed on the top of the mounting plate, a plurality of pressure relief holes are opened on the periphery of the hydraulic cylinder, and each of the pressure relief holes is connected to a pressure relief buffer mechanism;

[0008] The transmission mechanism comprises a transmission shaft movably mounted inside the centralizer housing, the top of the transmission shaft passes through the mounting plate and extends to the inside of the hydraulic cylinder, and the top of the transmission shaft is connected to a first piston;

[0009] The pressure relief buffer mechanism includes a connecting pipe connected to the pressure relief hole, the bottom of the connecting pipe is connected to a piston cylinder, a second piston is movably installed inside the piston cylinder, a piston rod is installed at the bottom of the second piston passing through the piston cylinder, and a second spring is connected to the bottom of the piston rod.

[0010] By installing a hydraulic cylinder and a pressure relief buffer mechanism inside the outer shell of the centralizer, the reverse force generated by the resistance encountered by the drilling mechanism during machining is used to pressurize the hydraulic cylinder. The pressure relief buffer mechanism can effectively relieve the internal pressure of the hydraulic cylinder. When the hydraulic cylinder loses pressure, the hydraulic oil entering the pressure relief buffer mechanism is re-delivered to the inside of the hydraulic cylinder to push the drilling mechanism to reset. This reciprocating motion will enable the drilling mechanism to achieve a certain range of reciprocating motion while rotating, forming an effect of reciprocating impact on the coal rock layer, so that the drilling mechanism can perform drilling processing faster and improve processing efficiency.

[0011] Preferably, the hole shape of the pressure relief hole is truncated cone-shaped, and the hole diameter of one end of the pressure relief hole close to the pressure relief buffer mechanism is larger than the hole diameter of one end of the pressure relief hole close to the first piston.

[0012] Preferably, a first spring is installed inside the centralizer housing at the bottom of the mounting plate, and the first spring is sleeved on the periphery of the transmission shaft.

[0013] Preferably, a plurality of protrusions are installed on the periphery of the centralizer housing.

[0014] Preferably, the pressure relief buffer mechanism further comprises a plurality of sleeves installed at the bottom of the piston cylinder, and the sleeves are sleeved on the periphery of the piston rod and the second spring.

[0015] Preferably, hydraulic oil is stored inside the hydraulic cylinder and the piston cylinder at the upper ends of the first piston and the second piston.

[0016] Preferably, the top of the centralizer housing is connected to a connecting seat by bolts, and a plurality of connecting holes are formed on the top of the connecting seat.

[0017] Preferably, the transmission mechanism further comprises a sliding block installed on the periphery of the transmission shaft, and a sliding groove matched with the sliding block is provided inside the centralizer housing.

[0018] Preferably, the transmission mechanism further comprises a connecting flange installed at the bottom of the transmission shaft, and a plurality of connecting bolts are movably installed inside the connecting flange.

[0019] Preferably, the drilling mechanism comprises a drill bit and a connecting ring, the connecting ring is connected to the bottom of the connecting flange, and the drill bit is installed on the bottom of the connecting ring.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention installs a hydraulic cylinder and a pressure relief buffer mechanism inside the housing of the centralizer. While the centralizer housing is used for centralization, the reverse force generated by the resistance encountered by the drilling mechanism during processing pressurizes the hydraulic cylinder. The pressure relief buffer mechanism can effectively relieve the internal pressure of the hydraulic cylinder. When the hydraulic cylinder loses pressure, the hydraulic oil entering the pressure relief buffer mechanism is re-delivered to the inside of the hydraulic cylinder to push the drilling mechanism to reset. This reciprocating motion enables the drilling mechanism to achieve a certain range of reciprocating motion while rotating, forming an effect of reciprocating impact on the coal rock layer, so that the drilling mechanism can perform drilling processing faster and improve processing efficiency.

[0022] 2. The present invention adopts a truncated cone-shaped pressure relief hole, which can slow down the speed at which the hydraulic oil in the hydraulic cylinder enters the pressure relief buffer mechanism and increase the speed at which the hydraulic oil in the pressure relief buffer mechanism enters the hydraulic cylinder, thereby improving the reset ability of the second spring.

[0023] 3. The present invention uses the first spring. During use, the transmission shaft will apply pressure to the first spring when it moves upward. The elastic force of the first spring can increase the resetting effect of the device on the transmission mechanism, reduce the pressure applied to the pressure relief buffer mechanism, and improve the strength of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of the present invention;

[0025] Figure 2 A bottom view of the present invention;

[0026] Figure 3 It is a schematic diagram of the internal structure of the centralizer housing of the present invention;

[0027] Figure 4 It is a cross-sectional view of the centralizer housing and the hydraulic cylinder of the present invention;

[0028] Figure 5 is a partial cross-sectional view of the centralizer of the present invention;

[0029] Figure 6 It is a partial cross-sectional view of the hydraulic cylinder and the pressure relief buffer mechanism of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the transmission mechanism of the present invention;

[0031] Figure 8It is a structural schematic diagram of the drilling mechanism of the present invention.

[0032] In the figure:

[0033] 1. Drilling mechanism; 101. Drill bit; 102. Connecting ring; 2. Transmission mechanism; 201. Connecting flange; 202. Connecting bolt; 203. Transmission shaft; 204. First piston; 205. Sliding block; 3. Centralizer housing; 4. Slide groove; 5. First spring; 6. Mounting plate; 7. Hydraulic cylinder; 8. Pressure relief buffer mechanism; 801. Piston cylinder; 802. Connecting pipe; 803. Second piston; 804. Piston rod; 805. Second spring; 806. Casing; 9. Pressure relief hole; 10. Bump; 11. Connecting seat. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 and attached Figure 8 As shown:

[0038] Embodiment 1: The present invention provides a geological exploration drilling straightening device, comprising:

[0039] A drilling mechanism 1, a transmission mechanism 2 is connected to the top of the drilling mechanism 1, a centralizer housing 3 is connected to the periphery of the transmission mechanism 2, a mounting plate 6 is installed inside the centralizer housing 3, a hydraulic cylinder 7 is installed on the top of the mounting plate 6, a plurality of pressure relief holes 9 are opened on the periphery of the hydraulic cylinder 7, and each pressure relief hole 9 is connected to a pressure relief buffer mechanism 8;

[0040] The transmission mechanism 2 includes a transmission shaft 203 movably mounted inside the centralizer housing 3, the top of the transmission shaft 203 passes through the mounting plate 6 and extends to the inside of the hydraulic cylinder 7, and the top of the transmission shaft 203 is connected to a first piston 204;

[0041] The pressure relief buffer mechanism 8 includes a connecting pipe 802 connected to the pressure relief hole 9, the bottom of the connecting pipe 802 is connected to the piston cylinder 801, a second piston 803 is movably installed inside the piston cylinder 801, the bottom of the second piston 803 passes through the piston cylinder 801 and is installed with a piston rod 804, and the bottom of the piston rod 804 is connected to a second spring 805.

[0042] The hydraulic cylinder 7 at the upper end of the first piston 204 and the second piston 803 and the piston cylinder 801 both store hydraulic oil.

[0043] As can be seen from the above, after the centralizer housing 3 is connected to the geological exploration equipment structure, driven by the geological exploration equipment, the centralizer housing 3 drives the drilling mechanism 1 to rotate through the transmission mechanism 2, thereby realizing drilling processing. During the drilling processing, the centralizer housing 3 can reduce the deviation and correction time of the drilling mechanism 1, and reduce the friction between the drilling mechanism 1 and the well wall, so that the drilling mechanism 1 can maintain stable processing;

[0044] When the drilling mechanism 1 encounters nodules in the coal rock layer, the centralizer housing 3 can be used to ensure the processing angle of the drilling mechanism 1 and prevent the drilling mechanism 1 from being offset. After encountering resistance, the drilling mechanism 1 will generate a certain reverse force to push the transmission mechanism 2 to move toward the inside of the centralizer housing 3. When the reverse force is greater than the elastic force of the second spring 805, the first piston 204 at the end of the transmission mechanism 2 will divert the hydraulic oil stored in the hydraulic cylinder 7 to the inside of the pressure relief buffer mechanism 8 through the pressure relief hole 9 under the push of the drilling mechanism 1. The volume of the hydraulic oil in the piston cylinder 801 increases, pushing the second piston 803 and the piston rod 804 to move downward, and squeezing the second spring 805, thereby playing a buffering role, avoiding the drilling mechanism 1 from being offset due to the reverse force generated instantly when encountering an obstacle;

[0045] At the same time, the thrust generated by the compression of the second spring 805 is used to continuously return the hydraulic oil in the piston cylinder 801 to the inside of the hydraulic cylinder 7 through the pressure relief hole 9 through the second piston 803, pushing the drilling mechanism 1 to automatically reset, thereby performing drilling processing;

[0046] In this embodiment, a hydraulic cylinder 7 and a pressure relief buffer mechanism 8 are installed inside the centralizer housing 3, and the reverse force generated by the resistance encountered by the drilling mechanism 1 during machining is used to apply pressure to the hydraulic cylinder 7. The pressure relief buffer mechanism 8 can effectively relieve the internal pressure of the hydraulic cylinder 7. When the hydraulic cylinder 7 loses pressure, the hydraulic oil entering the pressure relief buffer mechanism 8 is re-delivered to the inside of the hydraulic cylinder 7 to push the drilling mechanism 1 to reset. This reciprocating motion can enable the drilling mechanism 1 to achieve a certain amplitude of reciprocating motion while rotating, forming an effect of reciprocating impact on the coal rock layer, so that the drilling mechanism 1 can perform drilling processing faster and improve processing efficiency.

[0047] As attached Figure 6 As shown:

[0048] Specifically, regarding the above-mentioned pressure relief buffer mechanism 8 , the pressure relief buffer mechanism 8 also includes a plurality of sleeves 806 installed at the bottom of the piston cylinder 801 , and the sleeves 806 are sleeved on the periphery of the piston rod 804 and the second spring 805 .

[0049] The sleeve 806 has an inner groove inside to accommodate the movement of the piston rod 804 and the second spring 805 , and the bottom of the second spring 805 is connected to the bottom of the inner groove.

[0050] As can be seen from the above, the sleeve 806 can support the piston cylinder 801 while also wrapping and protecting the piston rod 804 and the second spring 805 to prevent the second spring 805 from being displaced during the reciprocating extrusion and deformation process.

[0051] As attached Figure 3 , Attachment Figure 4 , Attachment Figure 5 and attached Figure 7 As shown:

[0052] Specifically, regarding the transmission mechanism 2, the transmission mechanism 2 further includes a slider 205 installed on the periphery of the transmission shaft 203, and a slide groove 4 adapted to the slider 205 is provided inside the centralizer housing 3;

[0053] The transmission mechanism 2 further comprises a connection flange 201 installed at the bottom of the transmission shaft 203 , and a plurality of connection bolts 202 are movably installed inside the connection flange 201 .

[0054] The depth of the slide groove 4 can satisfy the movement of the slider 205 .

[0055] As can be seen from the above, by the cooperation between the slide groove 4 and the slider 205, the contact surface between the transmission mechanism 2 and the centralizer housing 3 can be enlarged during use, and the transmission mechanism 2 can be moved up and down inside the centralizer housing 3 without affecting the transmission between the centralizer housing 3 and the transmission mechanism 2, so as to facilitate punching and drilling.

[0056] The connecting flange 201 can expand the contact area between the bottom of the transmission mechanism 2 and the drilling mechanism 1 during use, and the connecting bolt 202 can pass through the connecting flange 201 to connect with the drilling mechanism 1, and transmission can be achieved after the connection.

[0057] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 and attached Figure 5 As shown:

[0058] Specifically, regarding the centralizer housing 3, the top of the centralizer housing 3 is connected to a connecting seat 11 through bolts, and a plurality of connecting holes are formed on the top of the connecting seat 11.

[0059] As can be seen from the above, the connection holes on the connection base 11 can facilitate the user to connect the connection base 11 to the geological exploration equipment during use, so as to facilitate the assembly and disassembly of the device.

[0060] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 7 and attached Figure 8 As shown:

[0061] Specifically, regarding the above-mentioned drilling mechanism 1 , the drilling mechanism 1 includes a drill bit 101 and a connecting ring 102 . The connecting ring 102 is connected to the bottom of the connecting flange 201 , and the drill bit 101 is installed at the bottom of the connecting ring 102 .

[0062] As can be seen from the above, the connecting ring 102 can be disassembled and assembled with the transmission mechanism 2 during use, and the drill bit 101 can be used to drill holes on the ground.

[0063] The working principle of this embodiment is as follows: when in use, it is connected to the geological exploration equipment through the connection seat 11, and can be connected to the drilling mechanism 1 after passing through the connection flange 201 by the connection bolt 202. After assembly, driven by the geological exploration equipment, the centralizer housing 3 drives the drilling mechanism 1 to rotate through the transmission mechanism 2, thereby realizing the drilling mouth processing. During the drilling process, the centralizer housing 3 can reduce the deviation and correction time of the drilling mechanism 1, and reduce the friction between the drilling mechanism 1 and the well wall, so that the drilling mechanism 1 can maintain stable processing;

[0064] When the drilling mechanism 1 encounters nodules in the coal rock layer, the centralizer housing 3 can ensure the processing angle of the drilling mechanism 1. After encountering resistance, the drilling mechanism 1 will generate a certain reverse force to push the transmission mechanism 2 to move toward the inside of the centralizer housing 3. When the reverse force is greater than the elastic force of the second spring 805, the first piston 204 at the end of the transmission mechanism 2 will divert the hydraulic oil stored in the hydraulic cylinder 7 to the inside of the pressure relief buffer mechanism 8 through the pressure relief hole 9 under the push of the drilling mechanism 1. The volume of the hydraulic oil in the piston cylinder 801 increases, pushing the second piston 803 and the piston rod 804 to move downward, and squeezing the second spring 805, thereby playing a buffering role. At the same time, the thrust generated by the squeezing of the second spring 805 is used to continuously return the hydraulic oil in the piston cylinder 801 to the inside of the hydraulic cylinder 7 through the pressure relief hole 9 through the second piston 803, pushing the drilling mechanism 1 to automatically reset, so that the drilling mechanism 1 performs reciprocating impact drilling processing.

[0065] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 and attached Figure 5 As shown:

[0066] Embodiment 2: This embodiment is basically the same as the previous embodiment, except that the hole shape of the pressure relief hole 9 is truncated cone-shaped, and the hole diameter of the pressure relief hole 9 close to the pressure relief buffer mechanism 8 is larger than the hole diameter of the pressure relief hole 9 close to the first piston 204;

[0067] A first spring 5 is installed inside the centralizer housing 3 at the bottom of the mounting plate 6, and the first spring 5 is sleeved on the periphery of the transmission shaft 203;

[0068] A plurality of protrusions 10 are installed on the periphery of the centralizer housing 3 .

[0069] As can be seen from the above, by adopting the truncated cone-shaped pressure relief hole 9, the speed at which the hydraulic oil in the hydraulic cylinder 7 enters the pressure relief buffer mechanism 8 can be slowed down and the speed at which the hydraulic oil in the pressure relief buffer mechanism 8 enters the hydraulic cylinder 7 can be increased during use, thereby improving the reset ability of the second spring 805.

[0070] The transmission shaft 203 will exert pressure on the first spring 5 during the upward movement. The elastic force of the first spring 5 can increase the reset effect of the device on the transmission mechanism 2, reduce the pressure exerted by the 2 on the pressure relief buffer mechanism 8, and improve the strength of the device.

[0071] The protrusion 10 can effectively reduce the direct contact area between the stabilizer housing 3 and the borehole wall during use, thereby reducing friction resistance, reducing the squeezing and compaction of the soil on the borehole wall, protecting the borehole wall from damage, and helping the stabilizer housing 3 to move more smoothly during the drilling process.

[0072] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0073] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0074] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

[0076] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A geological exploration drilling straightening device, characterized in that: include: A drilling mechanism (1), wherein the top of the drilling mechanism (1) is connected to a transmission mechanism (2), the periphery of the transmission mechanism (2) is connected to a centralizer housing (3), a mounting plate (6) is installed inside the centralizer housing (3), a hydraulic cylinder (7) is installed on the top of the mounting plate (6), a plurality of pressure relief holes (9) are opened on the periphery of the hydraulic cylinder (7), and each of the pressure relief holes (9) is connected to a pressure relief buffer mechanism (8); The transmission mechanism (2) comprises a transmission shaft (203) movably mounted inside the centralizer housing (3), the top of the transmission shaft (203) passing through the mounting plate (6) and extending to the inside of the hydraulic cylinder (7), and the top of the transmission shaft (203) is connected to a first piston (204); The pressure relief buffer mechanism (8) comprises a connecting pipe (802) connected to the pressure relief hole (9); the bottom of the connecting pipe (802) is connected to a piston cylinder (801); a second piston (803) is movably installed inside the piston cylinder (801); a piston rod (804) is installed at the bottom of the second piston (803) passing through the piston cylinder (801); and a second spring (805) is connected to the bottom of the piston rod (804).

2. A geological exploration drilling straightening device according to claim 1, characterized in that: The hole shape of the pressure relief hole (9) is truncated cone-shaped, and the hole diameter of the end of the pressure relief hole (9) close to the pressure relief buffer mechanism (8) is larger than the hole diameter of the end of the pressure relief hole (9) close to the first piston (204).

3. A geological exploration drilling straightening device according to claim 1, characterized in that: A first spring (5) is installed inside the centralizer housing (3) at the bottom of the mounting plate (6), and the first spring (5) is sleeved on the periphery of the transmission shaft (203).

4. The geological exploration drilling straightening device according to claim 1, characterized in that: A plurality of protrusions (10) are installed on the periphery of the centralizer housing (3).

5. The geological exploration drilling straightening device according to claim 1, characterized in that: The pressure relief buffer mechanism (8) further comprises a plurality of sleeves (806) installed at the bottom of the piston cylinder (801), and the sleeves (806) are sleeved on the periphery of the piston rod (804) and the second spring (805).

6. The geological exploration drilling straightening device according to claim 1, characterized in that: Hydraulic oil is stored inside the hydraulic cylinder (7) and the piston cylinder (801) at the upper ends of the first piston (204) and the second piston (803).

7. A geological exploration drilling straightening device according to claim 4, characterized in that: The top of the centralizer housing (3) is connected to a connecting seat (11) via bolts, and a plurality of connecting holes are provided on the top of the connecting seat (11).

8. The geological exploration drilling straightening device according to claim 6, characterized in that: The transmission mechanism (2) further comprises a sliding block (205) mounted on the periphery of the transmission shaft (203), and a sliding groove (4) adapted to the sliding block (205) is provided inside the centralizer housing (3).

9. A geological exploration drilling straightening device according to claim 8, characterized in that: The transmission mechanism (2) further comprises a connecting flange (201) mounted on the bottom of the transmission shaft (203), and a plurality of connecting bolts (202) are movably mounted inside the connecting flange (201).

10. A geological exploration drilling straightening device according to any one of claims 1 to 9, characterized in that: The drilling mechanism (1) comprises a drill bit (101) and a connecting ring (102), wherein the connecting ring (102) is connected to the bottom of a connecting flange (201), and the drill bit (101) is installed on the bottom of the connecting ring (102).

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