Gearbox assembly with better lubricating effect for rock drill

Abstract

The utility model discloses a gear box assembly with a better lubricating effect for a rock drill. The gear box assembly comprises a main shaft, a transmission gear set and a multi-edge transmission sleeve, the multi-edge transmission sleeve is installed in the end of the main shaft in a matched mode, end oil grooves are formed in the two ends of the multi-edge transmission sleeve respectively, a plurality of side oil grooves are designed in the outer side face of the multi-edge transmission sleeve respectively, and the side oil grooves are communicated to the end of the multi-edge transmission sleeve. The end oil grooves, the side oil grooves and the communication oil grooves formed in the multi-edge transmission sleeve can store oil, the lubrication effect of transmission contact is improved, the lubrication and heat dissipation effects of oil storage circulation are improved, meanwhile, friction powder waste between the multi-edge transmission sleeve and the main shaft can be stored and discharged, and the service life of the main shaft is prolonged. According to the structural design, the oil passing area is increased, oil passing lubrication is matched, copper powder falling extrusion is reduced, and the service life is better prolonged. The transmission gear set is formed by matching a large bevel gear set and a small bevel gear set, noise caused by rotation can be reduced, gear torsion can be enhanced, and the service life of gears is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic rock drill gear boxes, in particular to a gear box assembly for a rock drill with better lubrication effect. Background Art

[0002] The transmission output of the hydraulic rock drill's copper sleeve and large gear, as well as the transmission of the large and small gears, are crucial components of the hydraulic rock drill. During use and coordination, the original copper sleeves (three- and five-sided copper sleeves) had a small oil flow area and lacked an oil reservoir and lubrication device. This caused the four-sided copper sleeve to heat up when it rotated with the drill tail, causing copper powder to fall off. This poor heat dissipation caused wear and shortened the service life. The large gear cylinder, a key component of the transmission, was paired with the small gear. Because the original spur gear, driven by the small gear, rotated at high speed, the overall machine produced excessive noise and torque, resulting in gear wear and a shortened service life. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems raised in the above background technology and to provide a gear box assembly for a rock drill with better lubrication effect.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a gear box assembly with better lubrication effect for a rock drill, comprising a main shaft, a transmission gear set, and a multi-edge transmission sleeve; the multi-edge transmission sleeve is matched and installed in the end of the main shaft, and the two ends of the multi-edge transmission sleeve are respectively provided with end oil grooves, and the outer side surfaces of the multi-edge transmission sleeve are respectively designed with multiple side oil grooves, and the side oil grooves lead to the ends of the multi-edge transmission sleeve.

[0005] In the above-mentioned gearbox assembly with better lubrication effect for rock drills, connecting oil grooves are respectively provided at both ends of the multi-edge transmission sleeve, and the end oil grooves and the side oil grooves are respectively connected to the connecting oil grooves.

[0006] In the above-mentioned gear box assembly with better lubrication effect for a rock drill, the side oil groove is provided on the edge of the multi-edge transmission sleeve.

[0007] In the above-mentioned gear box assembly with better lubrication effect for rock drills, the two adjacent side oil grooves on the multi-edge transmission sleeve lead to two different end portions of the multi-edge transmission sleeve.

[0008] In the above-mentioned gear box assembly with better lubrication effect for a rock drill, the direction of the side oil groove is parallel to the central axis of the multi-edge transmission sleeve.

[0009] In the above-mentioned gear box assembly with better lubrication effect for rock drills, the ends of the adjacent side oil grooves on the multi-edge transmission sleeve lead to the middle annular line track of the multi-edge transmission sleeve.

[0010] In the above-mentioned gear box assembly with better lubrication effect for rock drilling, the transmission gear set is a large and small helical gear set arranged in cooperation.

[0011] The beneficial effects of the utility model are:

[0012] The utility model provides the end oil groove and the side oil groove on the multi-edge transmission sleeve for storing oil, thereby improving the lubrication effect of the transmission contact between the multi-edge transmission sleeve and the main shaft, ensuring the heat dissipation effect, and connecting the oil grooves to form the end oil groove and the side oil groove, thereby increasing the lubrication effect of the oil storage circulation, thereby improving the service life of each component, and at the same time storing and discharging the friction powder waste between the multi-edge transmission sleeve and the main shaft. The structural design increases the oil flow area, matches the oil flow lubrication, reduces the shedding and extrusion of the copper powder, and better extends the service life.

[0013] The dynamic gear set of the utility model is a large and small helical gear set arranged in coordination, which can reduce the noise caused by rotation and enhance the gear torque, thereby increasing the service life of the gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded view of the utility model;

[0015] Figure 2 It is a three-dimensional diagram of the utility model;

[0016] Figure 3 It is a cross-sectional view of the multi-edge transmission sleeve in the present utility model. DETAILED DESCRIPTION

[0017] The present invention will be further described with reference to the accompanying drawings.

[0018] See also Figures 1 to 3 The utility model provides a gear box assembly with better lubrication effect for a rock drill, comprising a main shaft 1, a transmission gear set 2, and a polygonal transmission sleeve 3; the polygonal transmission sleeve 3 is matched and installed in the end of the main shaft 1, and end oil grooves 4 are respectively provided at both ends of the polygonal transmission sleeve 3. The outer side surface of the polygonal transmission sleeve 3 is designed with multiple side oil grooves 5, and the side oil grooves 5 lead to the ends of the polygonal transmission sleeve 3.

[0019] The end oil groove 4 and the side oil groove 5 provided on the multi-edge transmission sleeve 3 can store oil, improve the lubrication effect of the transmission contact between the multi-edge transmission sleeve and the main shaft, and ensure the heat dissipation effect. The multi-edge transmission sleeve 3 can also be designed into different polygonal shapes as needed.

[0020] Furthermore, the ends of the multi-edge transmission sleeve 3 are respectively provided with connecting oil grooves 6, and the end oil grooves 4 and the side oil grooves 5 are respectively connected to the connecting oil grooves 6. The connecting oil grooves form the end oil grooves and the side oil grooves, thereby increasing the lubrication effect of the oil storage and circulation, thereby improving the service life of each component.

[0021] The design and coordination between the end oil groove 4, the side oil groove 5, and the connecting oil groove 6 increase the oil flow area, provide oil lubrication, reduce the shedding and extrusion of copper powder, and better extend the service life.

[0022] Preferably, the side oil grooves 5 are provided on the edges of the multi-edge transmission sleeve 3 so as to better lubricate the parts with greater transmission stress.

[0023] Furthermore, two adjacent side oil grooves 5 on the polygonal transmission sleeve 3 are connected to two different ends of the polygonal transmission sleeve 3, that is, one of the adjacent side oil grooves is connected to one end of the polygonal transmission sleeve, and the other side oil groove is connected to the other end of the polygonal transmission sleeve; at the same time, the ends of the adjacent side oil grooves 5 on the polygonal transmission sleeve 3 are connected to the middle annular track 8 of the polygonal transmission sleeve 3. The multiple side oil grooves 5 designed can cross-coordinate to ensure the lubrication effect of the polygonal transmission sleeve 3 and thus ensure the structural strength of its transmission.

[0024] Furthermore, the direction of the side oil groove 5 is parallel to the central axis 7 of the multi-edge transmission sleeve 3 .

[0025] Furthermore, the transmission gear set 2 is a large and small helical gear set, which can reduce the noise caused by rotation and enhance the gear torque, thereby increasing the service life of the gear.

[0026] The above is a detailed introduction to a gearbox assembly for a rock drill with better lubrication effect provided by an embodiment of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solutions disclosed by the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A gearbox assembly for a rock drill with improved lubrication effect, comprising a main shaft (1), a transmission gear set (2), and a multi-edge transmission sleeve (3); characterized in that: The multi-edge transmission sleeve (3) is matched and installed in the end of the main shaft (1), and end oil grooves (4) are respectively provided at both ends of the multi-edge transmission sleeve (3). The outer side surface of the multi-edge transmission sleeve (3) is respectively designed with multiple side oil grooves (5), and the side oil grooves (5) are connected to the end of the multi-edge transmission sleeve (3).

2. A gearbox assembly with better lubrication effect for a rock drill according to claim 1, characterized in that: Both ends of the multi-edge transmission sleeve (3) are respectively provided with connecting oil grooves (6), and the end oil groove (4) and the side oil groove (5) are respectively communicated with the connecting oil groove (6).

3. A gearbox assembly with better lubrication effect for a rock drill according to claim 1 or 2, characterized in that: The side oil groove (5) is arranged on the edge of the multi-edge transmission sleeve (3).

4. The gearbox assembly with better lubrication effect for a rock drill according to claim 3, characterized in that: The two adjacent side oil grooves (5) on the multi-edge transmission sleeve (3) lead to two different ends of the multi-edge transmission sleeve (3).

5. The gearbox assembly with better lubrication effect for a rock drill according to claim 3, characterized in that: The direction of the side oil groove (5) is parallel to the central axis (7) of the multi-edge transmission sleeve (3).

6. The gear box assembly with better lubrication effect for a rock drill according to claim 3, characterized in that: The ends of the adjacent side oil grooves (5) on the multi-edge transmission sleeve (3) extend to the middle annular track (8) of the multi-edge transmission sleeve (3).

7. The gear box assembly with better lubrication effect for a rock drill according to claim 1, characterized in that: The transmission gear set (2) is a large and small helical gear set arranged to cooperate.

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