Multi-point cooling replaceable blade type drill rod and drill bit

Abstract

The utility model discloses a multi-point cooling replaceable blade type drill rod and a drill bit, and relates to the technical field of drill bits. The groove assembly is arranged at one end of the drill rod body; the cooling channel and the two U-shaped cooling grooves are formed in the drill rod body, one end of the cooling channel communicates with the two U-shaped cooling grooves, the other end of the cooling channel communicates with the other end of the drill rod body, and the two U-shaped cooling grooves communicate with the two sides of the groove assembly correspondingly. The utility model has the technical effect of good cooling and lubricating performance.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a multi-point cooling replaceable blade type drill rod and a drill bit. Background Art

[0002] A drill bit is a hole processing tool used for drilling or expanding holes. It has the advantage of being easy to process holes and is widely used in the field of hole processing.

[0003] In order to facilitate the replacement of the blade, the blade of the relevant drill bit is generally detachably connected, but due to the poor cooling and lubrication performance of the relevant drill bit, it is not only easy to cause poor chip removal performance at the center of the blade of the relevant drill bit, but also easy to cause a large degree of wear on the periphery of the blade of the relevant drill bit. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a multi-point cooling replaceable blade type drill rod and drill bit, which have good cooling and lubrication performances.

[0005] In order to solve the above problems, the technical solution provided by the utility model is:

[0006] A multi-point cooling replaceable blade type drill rod, comprising:

[0007] Drill pipe body;

[0008] a slot assembly disposed at one end of the drill rod body;

[0009] A cooling channel and two U-shaped cooling grooves are both arranged in the drill rod body, one end of the cooling channel is connected to the two U-shaped cooling grooves, the other end of the cooling channel is connected to the other end of the drill rod body, and the two U-shaped cooling grooves are respectively connected to both sides of the groove assembly.

[0010] Optionally, each of the U-shaped cooling grooves includes a first cooling groove and a second cooling groove both connected to one end of the cooling channel, the first cooling groove and the second cooling groove are both connected to the groove assembly, and a first angle α1 between the first cooling groove and the central axis of the drill rod body is smaller than a second angle α2 between the second cooling groove and the central axis of the drill rod body.

[0011] Optionally, a first angle α1 between the first cooling groove and the central axis of the drill pipe body is in a range of 0-10°, and a second angle α2 between the second cooling groove and the central axis of the drill pipe body is in a range of 10-45°.

[0012] Optionally, it also includes two cooling holes both provided in the drill rod body, the two cooling holes are correspondingly connected to the two U-shaped cooling grooves, one end of the two cooling holes are respectively connected to the two sides of one end of the drill rod body, and the other ends of the two cooling holes are connected to one end of the cooling channel.

[0013] Optionally, the groove assembly includes a blade groove and a thread groove both provided at one end of the drill pipe body, and the blade groove and the thread groove are communicated.

[0014] Optionally, the slot assembly further comprises a center positioning slot provided at one end of the drill rod body, and the center positioning slot is communicated with the blade slot.

[0015] Optionally, a concave V-shaped positioning surface is provided at the bottom of the blade groove.

[0016] Optionally, it also includes a chip removal groove provided on the drill rod body, and the chip removal groove is connected to the groove assembly.

[0017] Optionally, it also includes a handle arranged at the other end of the drill rod body.

[0018] A drill bit comprises a multi-point cooling replaceable blade type drill rod.

[0019] The technical solution provided by the utility model has the following beneficial effects compared with the prior art: the two U-shaped cooling grooves are respectively used to cool and lubricate the two sides of the blade to ensure good cooling and lubrication performance, wherein one side of each U-shaped cooling groove is used to cool and lubricate the center of a single side of the blade, so as to facilitate good chip removal performance of the center of a single side of the blade, and the other side of each U-shaped cooling groove is used to cool and lubricate the periphery of a single side of the blade, so as to facilitate reducing the degree of wear of the periphery of a single side of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the structural schematic diagrams of a multi-point cooling replaceable blade type drill rod proposed in an embodiment of the utility model;

[0021] Figure 2 for Figure 1 Partial diagram of A in the middle;

[0022] Figure 3 The second structural schematic diagram of a multi-point cooling replaceable blade drill rod proposed in an embodiment of the utility model;

[0023] Figure 4 A partial view of a multi-point cooling replaceable blade drill rod proposed in an embodiment of the utility model;

[0024] Figure 5The third structural schematic diagram of a multi-point cooling replaceable blade drill rod proposed in an embodiment of the utility model;

[0025] Figure 6 for Figure 5 Cross-section of the middle BB;

[0026] Figure 7 for Figure 5 Cross-section of the middle CC;

[0027] Figure 8 This is one of the structural schematic diagrams of a drill bit proposed in an embodiment of the utility model;

[0028] Fig. 9 The second structural schematic diagram of a drill bit proposed in an embodiment of the utility model;

[0029] In the figure: 1. drill pipe body; 11. groove assembly; 111. blade groove; 1111. concave V-shaped positioning surface; 112. thread groove; 113. center positioning groove; 12. cooling channel; 13. U-shaped cooling groove; 131. first cooling groove; 132. second cooling groove; 14. cooling hole; 15. chip groove; 16. handle; 2. blade; 3. fastener. DETAILED DESCRIPTION

[0030] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0031] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.

[0032] Example 1

[0033] Combined with Figure 1-9 This embodiment provides a multi-point cooling replaceable blade type drill pipe, comprising:

[0034] Drill pipe body 1;

[0035] A slot assembly 11 provided at one end of the drill pipe body 1;

[0036] A cooling channel 12 and two U-shaped cooling grooves 13 are both arranged in the drill pipe body 1, one end of the cooling channel 12 is connected to the two U-shaped cooling grooves 13, the other end of the cooling channel 12 is connected to the other end of the drill pipe body 1, and the two U-shaped cooling grooves 13 are respectively connected to the two sides of the groove assembly 11.

[0037] Specifically, the drill rod body 1 is used to carry the groove assembly 11, the cooling channel 12 and the two U-shaped cooling grooves 13, etc.; the groove assembly 11 is used to accommodate the blade 2, the fastener 3, etc.; the cooling channel 12 is used to receive the coolant from the coolant supply device, and supply the coolant to the two U-shaped cooling grooves 13; the two U-shaped cooling grooves 13 are respectively used to cool and lubricate the two sides of the blade 2 to ensure good cooling and lubrication performance, wherein one side of each U-shaped cooling groove 13 is used to cool and lubricate the center of a single side of the blade 2, so as to facilitate the good chip removal performance of the center of a single side of the blade 2, and the other side of each U-shaped cooling groove 13 is used to cool and lubricate the outer periphery of a single side of the blade 2, so as to facilitate the wear degree of the outer periphery of a single side of the blade 2 to be small.

[0038] Further, such as Figure 2 Each U-shaped cooling groove 13 includes a first cooling groove 131 and a second cooling groove 132 both connected to one end of the cooling channel 12, the first cooling groove 131 and the second cooling groove 132 are both connected to the groove assembly 11, and a first angle α1 between the first cooling groove 131 and the central axis of the drill rod body 1 is smaller than a second angle α2 between the second cooling groove 132 and the central axis of the drill rod body 1.

[0039] Specifically, since the first angle α1 between the first cooling groove 131 and the central axis of the drill rod body 1 is smaller than the second angle α2 between the second cooling groove 132 and the central axis of the drill rod body 1, the first cooling groove 131 is used to cool and lubricate the center of the blade 2, and the second cooling groove 132 is used to cool and lubricate the periphery of the blade 2.

[0040] Further, such as Figure 2 The first angle α1 between the first cooling groove 131 and the central axis of the drill pipe body 1 is in the range of 0-10°, and the second angle α2 between the second cooling groove 132 and the central axis of the drill pipe body 1 is in the range of 10-45°.

[0041] Further, such as Figure 2 , and also includes two cooling holes 14 both provided in the drill pipe body 1, the two cooling holes 14 are correspondingly connected to the two U-shaped cooling grooves 13, one end of the two cooling holes 14 is respectively connected to the two sides of one end of the drill pipe body 1, and the other end of the two cooling holes 14 is connected to one end of the cooling channel 12.

[0042] Specifically, one end of the two cooling holes 14 is used to further cool and lubricate the two sides of the blade 2 respectively.

[0043] Further, such as Figure 4 The groove assembly 11 includes a blade groove 111 and a thread groove 112 both provided at one end of the drill pipe body 1, and the blade groove 111 and the thread groove 112 are communicated.

[0044] Specifically, the blade groove 111 is used to accommodate the blade 2, and the thread groove 112 is used to accommodate the fastener 3. Since the blade groove 111 and the thread groove 112 are connected, it is convenient for the fastener 3 to fasten the blade 2 to the drill rod body 1.

[0045] Further, such as Figure 6 The slot assembly 11 further includes a center positioning slot 113 disposed at one end of the drill rod body 1 , and the center positioning slot 113 is connected to the blade slot 111 .

[0046] Specifically, the center positioning groove 113 is used to cooperate with the center positioning column of the blade 2 to achieve radial positioning of the blade 2.

[0047] Further, such as Figure 2 The bottom of the blade groove 111 is provided with a concave V-shaped positioning surface 1111.

[0048] Specifically, the concave V-shaped positioning surface 1111 is used to cooperate with the bottom of the blade 2, so as to further achieve radial positioning of the blade 2.

[0049] Further, such as Figure 1 , and also includes a chip removal groove 15 provided on the drill rod body 1, and the chip removal groove 15 is connected to the groove assembly 11.

[0050] Specifically, the chip removal groove 15 is used for chip removal, and may specifically include a main chip removal groove and a secondary chip removal groove.

[0051] Further, such as Figure 1 , and also includes a handle 16 arranged at the other end of the drill rod body 1.

[0052] Specifically, the handle 16 is used to cooperate with relevant hole processing equipment, so as to facilitate the cooperation between the multi-point cooling replaceable blade type drill rod of the utility model and the relevant hole processing equipment.

[0053] This embodiment also provides a drill bit, including a multi-point cooling replaceable blade type drill rod in this embodiment.

[0054] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A multi-point cooling replaceable blade drill pipe, characterized in that: include: Drill pipe body; a slot assembly disposed at one end of the drill rod body; A cooling channel and two U-shaped cooling grooves are both arranged in the drill rod body, one end of the cooling channel is connected to the two U-shaped cooling grooves, the other end of the cooling channel is connected to the other end of the drill rod body, and the two U-shaped cooling grooves are respectively connected to both sides of the groove assembly.

2. The multi-point cooling replaceable blade drill rod according to claim 1, characterized in that: Each of the U-shaped cooling grooves includes a first cooling groove and a second cooling groove, both of which are connected to one end of the cooling channel, the first cooling groove and the second cooling groove are both connected to the groove assembly, and a first angle α1 between the first cooling groove and the central axis of the drill rod body is smaller than a second angle α2 between the second cooling groove and the central axis of the drill rod body.

3. The multi-point cooling replaceable blade drill rod according to claim 2, characterized in that: A first angle α1 between the first cooling groove and the central axis of the drill pipe body is in a range of 0-10°, and a second angle α2 between the second cooling groove and the central axis of the drill pipe body is in a range of 10-45°.

4. A multi-point cooling replaceable blade drill rod according to any one of claims 1 to 3, characterized in that: It also includes two cooling holes, both of which are arranged in the drill rod body. The two cooling holes are correspondingly connected to the two U-shaped cooling grooves. One end of the two cooling holes is respectively connected to the two sides of one end of the drill rod body, and the other end of the two cooling holes is connected to one end of the cooling channel.

5. A multi-point cooling replaceable blade drill rod according to any one of claims 1 to 3, characterized in that: The groove assembly includes a blade groove and a thread groove both arranged at one end of the drill rod body, and the blade groove is communicated with the thread groove.

6. The multi-point cooling replaceable blade drill rod according to claim 5, characterized in that: The slot assembly further comprises a central positioning slot arranged at one end of the drill rod body, and the central positioning slot is communicated with the blade slot.

7. The multi-point cooling replaceable blade drill rod according to claim 5, characterized in that: A concave V-shaped positioning surface is provided at the bottom of the blade groove.

8. A multi-point cooling replaceable blade drill rod according to any one of claims 1 to 3, characterized in that: It also includes a chip removal groove arranged on the drill rod body, and the chip removal groove is communicated with the groove assembly.

9. A multi-point cooling replaceable blade drill rod according to any one of claims 1 to 3, characterized in that: It also includes a handle portion arranged at the other end of the drill rod body.

10. A drill bit, characterized in that: It comprises a multi-point cooling replaceable blade type drill rod as described in any one of claims 1-9.

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