CN88212803U

CN88212803U - Planet type plain grinder

Info

Publication number: CN88212803U
Application number: CN 88212803
Authority: CN
Inventors: 戴利庸
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-03-12
Filing date: 1988-03-12
Publication date: 1988-11-23

Abstract

The utility model discloses a planet type plain grinder, comprising a motor, a driving gear, a transmission shaft and a grinding tool. The motor drives three planet gears to rotate by a sun gear, and thus, three disc wheel grinding tools are driven to work, simultaneously, the grinding tool makes a revolution motion around the common center, and a planetary motion is composed namely. The grinding speed of the planet type plain grinder is high, and the movement trace of the abrasive particle on the grinding plane is regularly staggered each other; the generated texture greatly reduces the roughness of grinding planes. The different grinding tools can grind various metal or non-metallic materials by using different grinding tools.

Description

Planet type plain grinder

The utility model relates to a kind of plane bistrique that is used for grinding.

Flat surface grinding head of the prior art, all have only single the rotatablely moving of grinding tool, so abrasive particle grinding linear velocity is low, grinding tool production efficiency can not be given full play to, because single rotatablely moving, the track that abrasive particle moves on the grinding plane is single circle, and the grinding plane roughness value that the texture structure of formation obtains is big.

The purpose of this utility model is for solving the shortcoming that prior art exists, developing a kind of grinding tool that can make and carry out grinding by the planetary motion mode, the plane bistrique of efficient height, good grinding quality.

The purpose of this utility model is finished by the following technical programs: planet plane bistrique, by motor, travelling gear, power transmission shaft and grinding tool are formed, it is characterized in that: motor reel is connected with sun gear shaft, central gear is meshed with three planetary gears, three planetary outer support ends, be installed with three disk wheel grinding tools, the end cap flange of motor is fixed on the bistrique shell, the inwall of shell is fixed with ring gear, the tooth portion of ring gear is meshed with three planetary gears, two radial ball bearings are equipped with in the upper end of sun gear shaft, wherein the external diameter of a bearing is installed on the bistrique shell, the external diameter of another bearing is fixed on the top rotary table, leaves the space between the outer face of two bearings and does not contact.The lower end of sun gear shaft links to each other with lower rotary table by a radial ball bearing, three planet pin two ends are equipped with angular contact ball bearing and also are installed in respectively on top rotary table and the lower rotary table, lower rotary table is supported in bistrique shell lower edge by an angular contact ball bearing, and top rotary table contacts with the shell inner top by a single direction thrust ball bearing.Top rotary table and lower rotary table utilize three spaces between planetary gear, connect securely with alignment pin and screw, form an all-in-one-piece rotating disk, and are convenient to the assembling of parts such as planetary gear.

The grinding tool part also can adopt other form outside the mode of three disk wheels of the fixed installation of support end planet pin, as a plurality of triangle grinding tools etc. are installed on rotating disk.

According to the planet plane bistrique that the utility model proposed, solved existing shortcoming in the prior art, it also makes revolution motion around the total center of three planetary gears except driving with planet pin the grinding tool rotation, promptly constitutes planetary motion.Planet grinding head grinding speed height, the abrasive particle linear velocity at grinding motion maximum radius place is to rotatablely move and the composite value of revolution motion in this some place linear velocity addition, improves three to six times than general grinding speed.The movement locus of planet grinding head abrasive particle on the grinding plane is clocklike interlaced, and the texture of generation will reduce the roughness on grinding plane significantly, makes the high good grinding quality of efficient of planet grinding head.Planet plane bistrique is selected the grinding tool of different performance for use, can the grinding metal material, and as the bistrique that is used on the surface grinding machine.Also can the grinding nonmetallic materials, as be used for the grinding marble, on granitic equipment or the production line, grinding marble, granite.If load onto mobile roof support to bistrique, all right grinding terrazzo terrace becomes the planet terrazzo machine.

Fig. 1 is the upward view of the utility model embodiment;

Fig. 2 is the front view of the utility model embodiment.

According to accompanying drawing the utility model is done detailed explanation below:

Grinding tool arranging situation of the present utility model shown in Fig. 1 and each position direction of rotation, B is the motor direction of rotation, and C is the direction of rotation of planetary gear and grinding tool, and D is the direction of rotation of upper and lower rotating disk.

Shown in Fig. 2: motor (1), radial ball bearing (2), (3), (11), single direction thrust ball bearing (4), top rotary table (5), shell (6), ring gear (7), lower rotary table (8), planet pin (9), sun gear shaft (10), grinding tool (12), angular contact ball bearing (13), (14), (16), planetary gear (15), central gear (17), working face (18).

The end cap flange of motor (1) is fixed on the shell (6), motor reel is connected with sun gear shaft (10), central gear (17) is fixed on the axle (10), angular contact ball bearing (14), (16) at planet pin (9) two ends, be installed in respectively on top rotary table (5) and the lower rotary table (8), three planetary gears are fixed on the axle (9), and planetary gear (15) and bistrique (12) all can be rotated on rotating disk.Lower rotary table (8) is supported on the shell (6) with angular contact ball bearing (13), and set center of turntable is born the axial thrust to the grinding tool end again.Top rotary table (5) contacts with shell (6) by single direction thrust ball bearing (4), bear the axial thrust of grinding tool to rotating disk, radial ball bearing (2) external diameter is installed on the shell (6), internal diameter is supported sun gear shaft (10), radial ball bearing (3) internal diameter is loaded on the axle (10), and external diameter is rotating disk (5) fixedly, so rotating disk (5) is to sun gear shaft (10) by bearing (3), to bearing (2), decide its centre of gyration by bearing (2) to shell (6) by axle (10) again.The end face of bearing (2) and bearing (3) outer ring leaves the space and does not contact, and do not rotate so shell (6) is fixed in the outer ring of bearing (2), and rotates with rotating disk (5) outer ring of bearing (3).The outer ring of the radial ball bearing (11) of sun gear shaft (10) lower end dress is fixed on the rotating disk (8), top rotary table (5) and lower rotary table (8) utilize three spaces between planetary gear, connect securely with alignment pin and screw, form an all-in-one-piece rotating disk, upper and lower rotating disk can together be rotated.This structure has guaranteed central gear (17) and rotating disk (5) and (8), not only has the same centre of gyration but also have different separately rotary speeies.Like this, pass to central gear (17) when motor will rotatablely move by the arrow B direction, central gear drives three planetary gears (15) and rotates, and planetary gear has formed planetary spinning motion by the rotation of arrow C direction.Three planetary gears are meshed with ring gear (7), ring gear and shell (6) are fixed together, because ring gear maintains static, when three planetary gears when the C direction is rotated, to promote top rotary table (5) and lower rotary table (8) along arrow D direction and planetary gear reverse rotation, form planetary revolution motion.At the outer support end of three planet wheel spindles (9), fixedly mount three disk wheel grinding tools (12), when rotation and revolution took place three planetary gears (15), grinding tool (12) also obtained same planetary motion, and working face (18) is carried out grinding.

Claims

1, a kind of planet plane bistrique is made up of motor, travelling gear, axle and grinding tool, it is characterized in that:

A, motor reel are connected with sun gear shaft (10), and central gear (17) is meshed with three planetary gears (15), and the outer support end of three planet wheel spindles (9) is installed with three disk wheel grinding tools (12);

B, be fixed with ring gear (7) at shell (6) inwall, ring gear is meshed with three planetary gears (15);

Bearing (2) and (3) are equipped with in the upper end of c, sun gear shaft (10), the external diameter of bearing (2) is installed on the shell (6), the external diameter of bearing (3) is fixed on the top rotary table (5), leave the gap between the cycle surface of bearing (2) and bearing (3), the lower end of sun gear shaft links to each other with lower rotary table (8) by bearing (11);

The bearing (14,16) at d, planet pin (9) two ends is installed in respectively on top rotary table (5) and the lower rotary table (8), and lower rotary table is supported on the shell (6) by bearing (13), and top rotary table (5) contacts with shell (6) by bearing (4);

E, top rotary table (5) and lower rotary table (8) utilize three spaces between planetary gear, connect with alignment pin and screw.

2, according to the described planet of claim 1 plane bistrique, it is characterized in that on the lower rotary table (8) a plurality of triangle grinding tools being installed.