Main shaft joint of large main shaft box of rock core drill

Abstract

The utility model relates to the technical field of core drilling accessory equipment, and discloses a core drill large spindle box spindle joint which comprises a joint body, a drill rod connecting part is arranged at one end of the joint body, a spindle connecting part is arranged at the other end of the joint body, and a guide cone is arranged at one end of the drill rod connecting part. And the drill rod connecting part comprises a plurality of groups of drill rod connecting rods which are connected in sequence. The utility model not only can be conveniently butted with the drill rod, but also can be adapted to drill rods with different calibers, so that the drilling efficiency is effectively improved, and the labor capacity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of core drilling accessories and equipment, in particular to a core drilling large spindle box spindle joint. Background Art

[0002] Core drilling refers to a drilling method that involves drilling into underground rock formations to carve and extract cores for studying underground geological conditions. Core drilling is usually rotary drilling, using drilling machinery to cut, grind, and crush rocks in various ways, so that the drill bit can continue to drill deeper into the rock formation and carve cores.

[0003] At present, core drilling rigs are usually composed of basic parts such as a rotating mechanism, a feeding mechanism, a lifting mechanism, a transmission mechanism, an operating device and a machine base. The drill rig main shaft drives the drill rod to rotate through the main shaft joint, so that the drill bit can continuously crush the rock.

[0004] At least the following problems exist in the prior art: during the drilling process, drill rods of different calibers are selected for replacement according to actual working conditions. However, since the caliber of the drill rod and the spindle joint are compatible with each other, the spindle joint needs to be replaced together when the rod is replaced, which increases the steps of changing the rod, prolongs the time of changing the rod, and increases the workload of the staff. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model develops a core drill large spindle box spindle joint, which can be conveniently connected to a drill rod and can be adapted to drill rods of different calibers, thereby effectively improving the drilling efficiency and reducing the workload of staff.

[0006] The technical solution of the utility model to solve the technical problem is: a core drill large spindle box spindle joint, including a joint body, one end of the joint body is provided with a drill rod connecting part, the other end of the joint body is provided with a spindle connecting part, one end of the drill rod connecting part is provided with a guide cone, and the drill rod connecting part includes a plurality of groups of drill rod connecting rods connected in sequence.

[0007] As an optimization, the diameters of several groups of drill rod connecting rods are increased stepwise from the end close to the guide cone to the end close to the joint body, so as to ensure that each drill rod connecting rod can be connected with a drill rod of corresponding caliber.

[0008] As an optimization, one end of the drill rod connecting rod is provided with a chamfer. By providing the chamfer, it is further convenient to butt-connect the drill rod connecting rod with the drill rod, and the end edge of one end of the drill rod connecting rod can be prevented from scratching other objects.

[0009] As an optimization, the drill rod connection part includes a small drill rod connection rod and a large drill rod connection rod connected in sequence, which can be adapted to the existing commonly used large drill rods and small drill rods.

[0010] As an optimization, the guide cone is in the shape of a truncated cone, which can be easily inserted into the drill rod for positioning and enable the drill rod connecting rod to dock with the drill rod.

[0011] As an optimization, the joint body, the guide cone, the drill rod connection part and the main shaft connection part are integrally formed. The integral forming can ensure the overall strength of the main shaft joint.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By setting the joint body, it can be easily installed; by setting the drill rod connection part including several groups of drill rod connection rods connected in sequence, it can be realized that one group of main shaft joints corresponds to multiple groups of drill rods, and can be adapted to drill rods of different calibers, avoiding the need to replace the main shaft joint when replacing drill rods of different calibers, reducing the replacement steps, facilitating operation and construction, and reducing production costs; by setting the main shaft connection part, it can be connected to the main shaft of the drilling rig, transmitting power to drive the drill rod to rotate; by setting the guide cone, it can be convenient to insert the drill rod for positioning, so that the drill rod connection rod can be butted with the internal thread of the drill rod. The utility model can be conveniently butted with the drill rod and can be adapted to drill rods of different calibers, effectively improving the efficiency of drilling and reducing the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of an embodiment.

[0015] In the figure, 1, guide cone; 2, drill rod connecting rod; 21, small drill rod connecting rod; 22, large drill rod connecting rod; 23, chamfer; 3, joint body; 4, clamping part; 5, main shaft connecting part; 6, cavity. DETAILED DESCRIPTION

[0016] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0017] Example 1

[0018] Figure 1 An embodiment of the present utility model is as follows: Figure 1 As shown, a spindle joint of a core drill spindle box includes a joint body 3, a clamping portion 4 is provided on the joint body 3, a drill rod connecting portion is provided at one end of the joint body 3, a spindle connecting portion 5 is provided at the other end of the joint body 3, a guide cone 1 is provided at one end of the drill rod connecting portion, and the drill rod connecting portion includes a plurality of groups of drill rod connecting rods 2 connected end to end in sequence, and the drill rod connecting rods 2 are provided with external threads.

[0019] By setting the joint body 3 and the clamping part 4, installation can be facilitated; by setting the drill rod connecting part including a plurality of groups of drill rod connecting rods 2 connected end to end in sequence, one group of main shaft joints can correspond to multiple groups of drill rods, and can be adapted to drill rods of different calibers, avoiding the need to replace the main shaft joint when replacing drill rods of different calibers, reducing the replacement steps, facilitating operation and reducing production costs; by setting the main shaft connecting part 5, it can be connected to the main shaft of the drilling rig to transmit power to drive the drill rod to rotate; by setting the guide cone 1, the drill rod can be easily inserted for positioning, so that the external thread of the drill rod connecting rod 2 can be butted against the internal thread of the drill rod.

[0020] Several groups of drill rod connecting rods 2 are coaxially arranged, and the diameters of the several groups of drill rod connecting rods 2 are increased stepwise from one end close to the guide cone 1 to one end close to the joint body 3. It can ensure that each drill rod connecting rod 2 can be docked with a drill rod of corresponding caliber.

[0021] One end of the drill rod connecting rod 2 is provided with a chamfer 23. By providing the chamfer 23, it is possible to further facilitate the docking connection of the drill rod connecting rod 2 with the drill rod, and to prevent the end edge of one end of the drill rod connecting rod 2 from scratching other objects.

[0022] The drill rod connection part comprises a small drill rod connection rod 21 and a large drill rod connection rod 22 which are connected in sequence, and can be adapted to existing commonly used large drill rods and small drill rods.

[0023] The guide cone 1 is in the shape of a truncated cone, which can be conveniently inserted into the drill rod for positioning so that the drill rod connecting rod 2 can be butt-jointed with the drill rod.

[0024] The joint body 3, the guide cone 1, the drill rod connection part and the main shaft connection part 5 are integrally formed, and a cavity 6 is provided inside the main shaft joint. The integral forming can ensure the overall strength of the main shaft joint; by providing the cavity 6, the drill rod and the main shaft of the drilling rig can be connected.

[0025] When in use, the staff can connect the clamping part 4 with the wrench and other tools, and connect the main shaft connecting part 5 with the main shaft of the drill rig, so that the main shaft of the drill rig can transmit power to drive the drill rod to rotate; then select a drill rod of suitable caliber, and under the action of the guide cone 1, the drill rod connecting part can be smoothly inserted into the drill rod, and the corresponding drill rod connecting rod 2 can be connected with the internal thread of the drill rod through the external thread; when replacing drill rods of different calibers, the staff does not need to remove the main shaft joint, but can directly replace the drill rod, and the drill rod after the caliber is replaced can be connected with the matching drill rod connecting rod 2.

[0026] The descriptions of the orientation or relative position relationship of the structure in the present invention, such as the orientation or relative position relationship indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure 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 invention.

Claims

1. A core drill spindle box spindle joint, comprising a joint body (3), characterized in that: A drill rod connection portion is provided at one end of the joint body (3), a main shaft connection portion (5) is provided at the other end of the joint body (3), a guide cone (1) is provided at one end of the drill rod connection portion, and the drill rod connection portion comprises a plurality of groups of drill rod connection rods (2) connected in sequence.

2. The core drill large spindle box spindle joint according to claim 1 is characterized by: The diameters of the plurality of groups of drill pipe connecting rods (2) increase in a step-by-step manner from an end close to the guide cone (1) to an end close to the joint body (3).

3. The core drill large spindle box spindle joint according to claim 2 is characterized by: One end of the drill rod connecting rod (2) is provided with a chamfer (23).

4. The core drill large spindle box spindle joint according to claim 3 is characterized by: The drill rod connecting part comprises a small drill rod connecting rod (21) and a large drill rod connecting rod (22) which are connected in sequence.

5. The core drill large spindle box spindle joint according to any one of claims 1 to 4, characterized in that: The guide cone (1) is in the shape of a truncated cone.

6. The core drill large spindle box spindle joint according to claim 5, characterized in that: The joint body (3), the guide cone (1), the drill rod connection part and the main shaft connection part (5) are integrally formed.

Images