Connecting mechanism for transmission sleeve of rock drill

Abstract

A connecting mechanism for a transmission sleeve of a rock drill relates to the technical field of rock drill equipment and comprises a hydraulic motor and the transmission sleeve, a contact piece is fixed on the inner side of the transmission sleeve, the end portion of an output shaft of the hydraulic motor is in contact connection with the end face of the contact piece, the contact piece is a hard alloy piece, and three groups of jacks are arranged on the contact piece. According to the connecting mechanism for the transmission sleeve of the rock drill, compared with a spline connecting mode, machining is easier, assembling is convenient, the shaft shoulder of the hydraulic motor serves as the reference, the shaft shoulder of the hydraulic motor serves as the reference, the shaft shoulder of the hydraulic motor serves as the reference, and the shaft shoulder of the hydraulic motor serves as the reference. The concentricity of the transmission shaft and the motor can be ensured during transmission.

Description

Technical Field

[0001] The utility model relates to the technical field of rock drill equipment, in particular to a transmission sleeve connection mechanism for a rock drill. Background Art

[0002] The gearbox structure is the transmission part of the rock drill. The gearbox structure has a bearing on the outside of the transmission sleeve on the body, and a spline on the back. The installation operation is more troublesome, and the bearing clearance needs to be adjusted. In addition, the transmission sleeve has a blind hole internal spline, which is more difficult to process. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a rock drill transmission sleeve connection mechanism, which is easier to process and convenient to assemble than the spline connection method. It takes the shaft shoulder of the hydraulic motor as the reference, and can ensure the concentricity of the transmission shaft and the motor during transmission, which can effectively solve the problems in the background technology.

[0004] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0005] A rock drill transmission sleeve connection mechanism comprises a hydraulic motor and a transmission sleeve. A contact piece is fixed on the inner side of the transmission sleeve. The output shaft end of the hydraulic motor is in contact with the end face of the contact piece, and the contact piece is a hard alloy piece.

[0006] Furthermore, the contact member is provided with jacks, and there are three groups of jacks, which are arranged in a rotation array.

[0007] Furthermore, a plug is fixed to the end of the hydraulic motor, and the plug and the socket are arranged in a one-to-one correspondence, and the plug and the socket are plugged in with each other.

[0008] Furthermore, it also includes heat dissipation fins, which are fixed on the side of the transmission sleeve.

[0009] Furthermore, it also includes a heat-conducting silicone sheet, which is pasted at the connection between the heat dissipation fins and the transmission sleeve.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the rock drill transmission sleeve connection mechanism has the following advantages: the output shaft end of the hydraulic motor is in contact with the end face of the contact piece in the transmission sleeve, specifically, the plug on the hydraulic motor is plugged into the socket on the contact piece, which is easier to process and assemble than the spline connection method. It uses the shaft shoulder of the hydraulic motor as a reference, and can ensure the concentricity of the transmission shaft and the motor during transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the local structure of the transmission sleeve of the present utility model;

[0013] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the transmission sleeve of the present utility model.

[0014] In the figure: 1 hydraulic motor, 2 transmission sleeve, 3 plug, 4 thermal conductive silicone sheet, 5 heat dissipation fin, 6 jack, 7 contact piece. DETAILED DESCRIPTION

[0015] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0016] See also Figure 1-3 This embodiment provides a technical solution: a rock drill transmission sleeve connection mechanism, including a hydraulic motor 1 and a transmission sleeve 2, a contact member 7 is fixed to the inner side of the transmission sleeve 2, and the output shaft end of the hydraulic motor 1 is in contact with the end face of the contact member 7. The contact member 7 is a cemented carbide member. Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, and corrosion resistance. Compared with the spline connection method, it is easier to process and assemble. It uses the shaft shoulder of the hydraulic motor 1 as a reference, and can ensure the concentricity of the transmission shaft and the motor during transmission.

[0017] The contact member 7 is provided with a socket 6, and there are three groups of sockets 6, which are arranged in a rotating array. A plug 3 is fixed to the end of the hydraulic motor 1, and the plug 3 and the socket 6 are arranged in a one-to-one correspondence. The plug 3 and the socket 6 are plugged in together, which avoids the friction transmission between the output shaft of the hydraulic motor 1 and the contact member 7 to generate high temperature and adhesion, thereby facilitating subsequent maintenance work.

[0018] It also includes heat dissipation fins 5, which are fixed to the side of the transmission sleeve 2. The output shaft of the hydraulic motor 1 is directly connected to the transmission sleeve 2. The heat generated during the transmission process is diffused through the heat dissipation fins 5, thereby improving the heat resistance of the contact parts.

[0019] It also includes a thermally conductive silicone sheet 4, which is pasted at the connection between the heat sink 5 and the transmission sleeve 2. The thermally conductive silicone sheet 4 is used to reduce the contact thermal resistance generated between the heat source surface and the contact surface of the heat sink.

[0020] The working principle of the rock drill transmission sleeve connection mechanism provided by the utility model is as follows: the plug 3 on the output shaft end of the hydraulic motor 1 is plugged into the socket 6 on the contact member 7, thereby connecting the hydraulic motor 1 and the transmission sleeve 2. The heat generated during the transmission process is diffused through the heat dissipation fins 5, and the thermal conductive silicone sheet 4 is used to reduce the contact thermal resistance generated between the heat source surface and the contact surface of the heat dissipation device.

[0021] It is worth noting that the components disclosed in the above embodiments are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0026] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred implementation scheme, there are many methods and ways to implement the technical solution. The above is only a preferred implementation scheme of the present invention. However, technical personnel in the relevant field should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the attached claims, and all of them are within the scope of protection of the present invention.

Claims

1. A rock drill transmission sleeve connection mechanism, comprising a hydraulic motor (1) and a transmission sleeve (2), characterized in that: A contact piece (7) is fixed on the inner side of the transmission sleeve (2); the end of the output shaft of the hydraulic motor (1) is in contact with the end surface of the contact piece (7); and the contact piece (7) is a hard alloy piece.

2. A rock drill transmission sleeve connection mechanism according to claim 1, characterized in that: The contact piece (7) is provided with a plug hole (6), and the plug holes (6) are provided in three groups, and the three groups of plug holes (6) are arranged in a rotation array.

3. A rock drill transmission sleeve connection mechanism according to claim 2, characterized in that: A plug (3) is fixed to the end of the hydraulic motor (1), the plug (3) and the socket (6) are arranged in a one-to-one correspondence, and the plug (3) and the socket (6) are plugged in cooperation.

4. A rock drill transmission sleeve connection mechanism according to claim 1, characterized in that: It also comprises heat dissipation fins (5), wherein the heat dissipation fins (5) are fixed on the side of the transmission sleeve (2).

5. A rock drill transmission sleeve connection mechanism according to claim 4, characterized in that: It also comprises a heat-conducting silicone sheet (4), wherein the heat-conducting silicone sheet (4) is adhered to the connection between the heat dissipation fin (5) and the transmission sleeve (2).

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