Drilling gear cooling device

Abstract

The utility model discloses a drilling gear cooling device, which belongs to the field of gear cooling and comprises a base, a gear box fixed on the top of the base, a sealing cover detachably connected with the top of the base, a gear component arranged in the gear box, a cooling mechanism arranged on the base and comprising a liquid storage tank fixed on the base, an infusion pump is further fixed to the top of the base, a mounting shell is fixed to the outer surface of the gearbox, a bent pipe is fixed in the mounting shell, the liquid inlet end of the infusion pump is communicated with the liquid storage box through a first hose, and the liquid outlet end of the infusion pump is communicated with the bent pipe through a second hose. Through the arrangement of the cooling mechanism, the liquid pump pumps out cooling liquid in the liquid storage tank, the cooling liquid is conveyed to the bent pipe in the mounting shell through the first hose and the second hose, then flows into the cooling pipe on the inner wall of the gear assembly through the third hose, and finally flows back to the liquid storage tank through the fourth hose, the circular shell and the fifth hose, and a circulating cooling loop is formed. The cooling liquid can directly take away heat generated by the gear assembly.

Description

Technical Field

[0001] This utility model relates to the field of gear cooling technology, and in particular to a drilling gear cooling device. Background Technology

[0002] In the exploration and extraction of resources such as oil and natural gas, drilling operations are a crucial link. During long-term operation, the gears in drilling equipment generate a large amount of heat due to high load operation and mutual friction between gears. Excessive temperature will cause the mechanical properties of gear materials to deteriorate, such as reduced hardness and strength, thereby accelerating gear wear and shortening gear service life. At the same time, high temperature may also reduce the viscosity of lubricating oil, resulting in poor lubrication effect, further aggravating gear wear and the risk of failure. In addition, excessive temperature may even cause gear deformation, leading to a decrease in transmission accuracy, affecting the normal operation of drilling operations, and in severe cases, causing drilling equipment shutdown, increasing maintenance costs and operation time costs.

[0003] Currently, the existing cooling methods for drilling gears are mainly simple oil cooling. This simple oil cooling method results in poor circulation and heat dissipation of the lubricating oil, which cannot remove the large amount of heat generated by the gears in time and cannot meet the cooling requirements of long-term, high-intensity drilling operations. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the existing technology mainly uses simple oil cooling, which leads to poor circulation and heat dissipation of lubricating oil, and cannot remove the large amount of heat generated by the gears in time, thus failing to meet the cooling requirements of long-term, high-intensity drilling operations. Therefore, this invention proposes a drilling gear cooling device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A drilling gear cooling device includes a base, a gearbox fixed to the top of the base, a sealing cover detachably connected to the top of the base, a gear assembly inside the gearbox, a cooling mechanism on the base, the cooling mechanism including a liquid storage tank fixed to the base, a liquid pump fixed to the top of the base, a mounting shell fixed to the outer surface of the gearbox, a bent pipe fixed inside the mounting shell, the inlet end of the liquid pump communicating with the liquid storage tank via a first hose, the outlet end of the liquid pump communicating with the bent pipe via a second hose, a cooling pipe fixed to the inner wall of the gear assembly, and the end of the bent pipe away from the second hose communicating with the cooling pipe via a third hose.

[0007] Preferably, the cooling mechanism further includes a circular shell fixed inside the gearbox, a flexible hose 4 connecting the cooling pipe to the circular shell, and a flexible hose 5 connecting the circular shell to the liquid storage tank.

[0008] Preferably, the gearbox is provided with an auxiliary mechanism for drawing out cold air from the mounting housing. The auxiliary mechanism includes an impeller disposed inside a circular housing, and a rotating rod is fixed at the axis of the impeller. The rotating rod is rotatably connected to the circular housing through a bearing.

[0009] Preferably, a disc is fixed to the top of the rotating rod, a push rod is fixed to the top of the disc, a connecting shell slides on the outer surface of the push rod, and a nozzle is fixed to the top of the connecting shell.

[0010] Preferably, a compression rod is fixed to the outer surface of the connecting shell, and a piston cylinder is fixed to the outer surface of the base. The compression rod is slidably connected to the piston cylinder, and a piston disc is fixed to one end of the compression rod inside the piston cylinder. The piston disc slides inside the piston cylinder.

[0011] Preferably, a hose six connects the piston cylinder to the mounting housing, and a hose seven connects the piston cylinder to the nozzle; both hose six and hose seven are equipped with one-way valves.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. Through the cooling mechanism, the pump draws out the coolant from the storage tank, delivers it through hose 1 and hose 2 to the bend in the mounting housing, then through hose 3 into the cooling pipe on the inner wall of the gear assembly, and finally through hose 4, the circular housing and hose 5 back to the storage tank, forming a circulating cooling circuit. The coolant can directly carry away the heat generated by the gear assembly.

[0014] 2. Through the auxiliary mechanism, the impeller rotation drives the rotating rod, disc and push rod to move. The push rod pushes the connecting shell, causing the extrusion rod to drive the piston disc to slide inside the piston cylinder. Under the action of the one-way valve, the cold air in the mounting shell is drawn into the piston cylinder through hose six, and then sprayed out from the nozzle through hose seven, which cools the key parts in the gearbox in a targeted manner, enhancing the local cooling effect and further improving the overall cooling efficiency. Moreover, the auxiliary mechanism is driven by the energy inside the gearbox, without the need for an additional power source, which is energy-saving and environmentally friendly. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a drilling gear cooling device proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the gearbox of a drilling gear cooling device proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the mounting shell of a drilling gear cooling device proposed in this utility model;

[0018] Figure 4 This utility model proposes a drilling gear cooling device. Figure 3 Enlarged view of the structure at point A in the middle;

[0019] Figure 5 This is a side view of the internal structure of the gearbox of a drilling gear cooling device proposed in this utility model;

[0020] Figure 6 This is a schematic diagram of the auxiliary mechanism structure of a drilling gear cooling device proposed in this utility model.

[0021] In the diagram: 1. Base; 2. Gearbox; 3. Gear assembly; 41. Liquid storage tank; 42. Liquid pump; 43. Mounting housing; 44. Bend; 45. Hose 1; 46. Hose 2; 47. Hose 3; 48. Cooling pipe; 49. Circular shell; 410. Hose 4; 411. Hose 5; 51. Impeller; 52. Rotating rod; 53. Disc; 54. Push rod; 55. Connecting shell; 56. Nozzle; 57. Extrusion rod; 58. Piston cylinder; 59. Piston disc; 510. Hose 6; 511. Hose 7. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Reference Figures 1-6 A drilling gear cooling device includes a base 1, a gearbox 2 fixed to the top of the base 1, a sealing cover detachably connected to the top of the base 1, a gear assembly 3 disposed inside the gearbox 2, a cooling mechanism disposed on the base 1, the cooling mechanism including a liquid storage tank 41 fixed to the base 1, a liquid pump 42 fixed to the top of the base 1, a mounting shell 43 fixed to the outer surface of the gearbox 2, a bent pipe 44 fixed inside the mounting shell 43, the inlet end of the liquid pump 42 being connected to the liquid storage tank 41 through a first hose 45, the outlet end of the liquid pump 42 being connected to the bent pipe 44 through a second hose 46, a cooling pipe 48 fixed to the inner wall of the gear assembly 3, and the end of the bent pipe 44 away from the second hose 46 being connected to the cooling pipe 48 through a third hose 47.

[0025] Furthermore, the cooling mechanism also includes a circular shell 49 fixed inside the gearbox 2, a flexible hose 410 connecting the cooling pipe 48 and the circular shell 49, and a flexible hose 411 connecting the circular shell 49 and the liquid storage tank 41.

[0026] The top of gearbox 2 can be sealed with screws for easy disassembly. Gear assembly 3 consists of meshing circular gears, one of which is driven by a motor mounted on gearbox 2. When the circular gear runs for a long time, causing the temperature inside gearbox 2 to be high, the liquid pump 42 is activated. The coolant in storage tank 41 flows into the liquid pump 42 through hose 45 under the suction of the liquid pump 42, and then is delivered to the bent pipe 44 inside the mounting housing 43 through hose 46. Because the bent pipe 44 increases the contact area between the coolant and the mounting housing 43, it can initially absorb the coolant. The heat conducted by the gearbox 2 can generate cool air inside the mounting housing 43, which is convenient for the auxiliary mechanism to absorb. Then, the coolant enters the cooling pipe 48 on the inner wall of the gearbox 2 through the hose 3 47, directly carrying away a large amount of heat generated by friction during the operation of the gear assembly 3. Subsequently, the coolant that has absorbed the heat flows into the circular housing 49 through the hose 410, and finally flows back to the storage tank 41 through the hose 5 411, completing one cooling cycle. During this process, the coolant continuously circulates and continuously absorbs the heat generated by the gear, achieving effective cooling of the drilling gear.

[0027] Based on Example 1, Example 2:

[0028] Reference Figures 1-6 Furthermore, the gearbox 2 is provided with an auxiliary mechanism for drawing out the cold air from the mounting housing 43. The auxiliary mechanism includes an impeller 51 disposed inside the circular housing 49. A rotating rod 52 is fixed at the shaft of the impeller 51 and is rotatably connected to the circular housing 49 through a bearing.

[0029] Furthermore, a disc 53 is fixed to the top of the rotating rod 52, a push rod 54 is fixed to the top of the disc 53, a connecting shell 55 slides on the outer surface of the push rod 54, and a nozzle 56 is fixed to the top of the connecting shell 55.

[0030] Furthermore, a compression rod 57 is fixed to the outer surface of the connecting shell 55, and a piston cylinder 58 is fixed to the outer surface of the base 1. The compression rod 57 is slidably connected to the piston cylinder 58. A piston disc 59 is fixed to one end of the compression rod 57 inside the piston cylinder 58, and the piston disc 59 slides inside the piston cylinder 58.

[0031] Furthermore, a hose 6 510 is connected between the piston cylinder 58 and the mounting housing 43, and a hose 7 511 is connected between the piston cylinder 58 and the nozzle 56. Both hose 6 510 and hose 7 511 are equipped with one-way valves.

[0032] When coolant flows into the circular housing 49 through hose 410, the impeller 51 inside the circular housing 49 begins to rotate under the action of the coolant. The impeller 51 drives the rotating rod 52 at the shaft to rotate. When the rotating rod 52 rotates, the disc 53 and push rod 54 fixed on its top move accordingly. During the movement, the push rod 54 pushes the connecting housing 55 to slide left and right. The pressing rod 57 on the outer surface of the connecting housing 55 drives the piston disc 59 to slide back and forth inside the piston cylinder 58. When the piston disc 59 slides to the right, under the action of the one-way valve on hose 510, the piston disc 59 inside the housing 49... Cold air is drawn into piston cylinder 58. When piston disc 59 slides to the left, the cold air in piston cylinder 58 is sprayed out from nozzle 56 through hose 7 511 under the control of the one-way valve on hose 7 511, and blown in a direction to the key parts inside gearbox 2 to enhance the local cooling effect. The auxiliary mechanism is cleverly driven by the energy generated by the operation of gear assembly 3, without the need for an additional power source. While saving energy and protecting the environment, it further improves the cooling efficiency of the entire cooling device. Another alternative is to use a motor installed on circular shell 49 to drive the disc 53 to rotate, ensuring that the auxiliary mechanism can operate.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A drilling gear cooling device, comprising a base (1), characterized in that, A gearbox (2) is fixed to the top of the base (1). A sealing cover is detachably connected to the top of the base (1). A gear assembly (3) is provided inside the gearbox (2). A cooling mechanism is provided on the base (1). The cooling mechanism includes a liquid storage tank (41) fixed on the base (1). A liquid pump (42) is also fixed to the top of the base (1). An installation shell (43) is fixed to the outer surface of the gearbox (2). A bent pipe (44) is fixed inside the installation shell (43). The inlet end of the liquid pump (42) is connected to the liquid storage tank (41) through a first hose (45). The outlet end of the liquid pump (42) is connected to the bent pipe (44) through a second hose (46). A cooling pipe (48) is fixed to the inner wall of the gear assembly (3). The end of the bent pipe (44) away from the second hose (46) is connected to the cooling pipe (48) through a third hose (47).

2. The drilling gear cooling device according to claim 1, characterized in that, The cooling mechanism also includes a circular shell (49) fixed inside the gearbox (2), a flexible hose (410) connecting the cooling pipe (48) and the circular shell (49), and a flexible hose (411) connecting the circular shell (49) and the liquid storage tank (41).

3. A drilling gear cooling device according to claim 2, characterized in that, The gearbox (2) is provided with an auxiliary mechanism for drawing out cold air from the mounting shell (43). The auxiliary mechanism includes an impeller (51) disposed in a circular shell (49). A rotating rod (52) is fixed at the shaft of the impeller (51). The rotating rod (52) is rotatably connected to the circular shell (49) through a bearing.

4. A drilling gear cooling device according to claim 3, characterized in that, A disc (53) is fixed to the top of the rotating rod (52), a push rod (54) is fixed to the top of the disc (53), a connecting shell (55) slides on the outer surface of the push rod (54), and a nozzle (56) is fixed to the top of the connecting shell (55).

5. A drilling gear cooling device according to claim 4, characterized in that, An extrusion rod (57) is fixed on the outer surface of the connecting shell (55), and a piston cylinder (58) is fixed on the outer surface of the base (1). The extrusion rod (57) is slidably connected to the piston cylinder (58). A piston disc (59) is fixed at one end of the extrusion rod (57) inside the piston cylinder (58), and the piston disc (59) slides inside the piston cylinder (58).

6. A drilling gear cooling device according to claim 5, characterized in that, A hose six (510) connects the piston cylinder (58) to the mounting shell (43), and a hose seven (511) connects the piston cylinder (58) to the nozzle (56). Both the hose six (510) and the hose seven (511) are equipped with one-way valves.

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