Connecting structure for connecting lower brush of brush machine with main shaft

Abstract

The utility model discloses a connecting structure of a lower brush connecting main shaft of a brush machine, which comprises a main connecting shaft, the main connecting shaft is inserted and sleeved in a main connecting sleeve, the lower part of the main connecting shaft is movably connected in the lower end of the main connecting sleeve through a first bearing, and the upper part of the main connecting shaft is movably connected in the upper end of the main connecting sleeve through a second bearing. The top end of the main connecting shaft extends out of the top end of the main connecting sleeve and is fixed with a brush disc connecting base; and a lower end cover is fixed at the bottom end of the main connecting sleeve. The output shaft of the speed reducer basically does not shake in the radial direction, it is guaranteed that the corresponding gear operates stably and is not prone to damage, maintenance is reduced, normal operation is guaranteed, and therefore the production efficiency of the speed reducer is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to wheel hub processing equipment technical field more specifically, relate to a kind of connection structure of brush machine lower brush connecting main shaft. BACKGROUND

[0002] In prior art, the connecting main shaft of the lower brush of burr machine is integral aluminum bar, its bottom end is directly connected with the output shaft of the lower speed reducer, in actual use process, due to the excessive pressure of brush, and the connecting aluminum bar is too long, when it runs, the connecting main shaft will shake radially, which drives the output shaft of the speed reducer to shake, the radial shaking directly drives the fixed output gear to swing left and right and deform, even wear and damage between other adjacent transmission gears, resulting in the reduction of service life of the gear of speed reducer, frequent damage, need to be replaced and maintained, affect production efficiency and increase maintenance cost. UTILITY MODEL CONTENT

[0003] The utility model aims at overcoming the insufficient of prior art, provide a kind of connection structure of brush machine lower brush connecting main shaft, it makes the output shaft of speed reducer basically not radial shake, ensure the stable operation of corresponding gear, make it not easy to damage, thereby reduce maintenance, ensure normal operation, thereby ensure its production efficiency.

[0004] The utility model solves the technical problem of the scheme:

[0005] A kind of connection structure of brush machine lower brush connecting main shaft, including main connecting shaft, the main connecting shaft is inserted in main connecting sleeve, the lower part of main connecting shaft is movably connected in the lower end of main connecting sleeve by first bearing, the upper part of main connecting shaft is movably connected in the upper end of main connecting sleeve by second bearing, the top end of main connecting shaft extends the top end of main connecting sleeve and is fixed with brush disc connecting base;

[0006] The bottom of main connecting sleeve is fixed with lower end cover.

[0007] The middle part of the bottom of main connecting shaft is formed with connecting end, it is inserted in the center through-hole formed in the middle part of lower end cover, the bottom end of connecting end extends the bottom end of middle part through-hole, and the middle part of bottom end surface is formed with connecting hole for connection.

[0008] The top surface around the middle part through-hole of lower end cover is formed with annular protruding part, it is inserted in the bottom of main connecting sleeve, and the top surface is pressed on the bottom end surface of the outer ring of first bearing.

[0009] The top end surface of main connecting sleeve is fixed with upper end cover, and the top end of main connecting shaft extends the middle part through-hole of upper end cover.

[0010] The top surface middle part of the top end of the main connecting shaft is formed with an upper connecting shaft part with a smaller outer diameter than the main connecting shaft, the upper connecting shaft part is inserted into a downward extending sleeve body formed in the middle part of the bottom surface of the brush disc connecting base, the top surface of the upper connecting shaft part is pressed against the top surface of the sleeve body and is fixedly connected to the brush disc connecting base through bolts.

[0011] The bottom surface around the middle part through hole of the upper end cover is formed with an upper annular protruding part which is inserted into the top part of the main connecting sleeve, and the bottom surface of the upper annular protruding part is pressed against the top surface of the outer ring of the second bearing at the top.

[0012] The radially extending annular connecting part formed on the outer side wall of the top part of the brush disc connecting base is formed with a connecting through hole;

[0013] The side part of the lower end cover is formed with a plurality of lower connecting through holes.

[0014] The prominent effect of the utility model is:

[0015] It is connected to the main connecting sleeve through the first bearing and the second bearing, so that it is supported by the first bearing and the second bearing when rotating, and bears the corresponding radial force and axial force, so that the output shaft of the connected speed reducer does not shake radially, and the corresponding gear runs stably, so that it is not easy to be damaged, thereby reducing maintenance and ensuring normal operation, thereby ensuring production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a partial structure schematic view of the utility model;

[0017] Figure 2 It is Figure 1 the partial enlarged view. DETAILED DESCRIPTION

[0018] Embodiment, see as Figures 1 to 2 shown, a brush machine lower brush connecting main shaft connecting structure, including main connecting shaft 10, the main connecting shaft 10 is inserted into the main connecting sleeve 20, the lower part of main connecting shaft 10 is movably connected in the lower end of main connecting sleeve 20 through the first bearing 1, the upper part of main connecting shaft 10 is movably connected in the upper end of main connecting sleeve 20 through the second bearing 2, the top end of main connecting shaft 10 extends the top end of main connecting sleeve 20 and is fixed with brush disc connecting base 30;

[0019] The bottom end of the main connecting sleeve 20 is fixedly connected with the lower end cover 40 through bolts.

[0020] Further, the bottom end of the main connecting shaft 10 is formed with a connecting end 11, which is inserted into the center through hole formed in the middle of the lower end cover 40, the bottom end of the connecting end 11 extends out of the bottom end of the middle through hole, and a connecting hole is formed in the middle of the bottom end surface of the connecting end 11, a key groove is formed on the inner side wall of the connecting hole, and in use, the connecting end 11 is inserted into the corresponding output shaft of the lower speed reducer, the output shaft extends into the connecting hole and is fixed by key connection.

[0021] The top surface around the middle through hole of the lower end cover 40 is formed with an annular protruding part, which is inserted into the bottom of the main connecting sleeve 20, and the top surface is pressed against the bottom end surface of the outer ring of the first bearing 1.

[0022] The upper part of the main connecting shaft 10 is movably connected to the upper end of the main connecting sleeve 20 by two second bearings 2;

[0023] The two second bearings 2 are tapered roller bearings.

[0024] Further, the top end surface of the main connecting sleeve 20 is fixed with an upper end cover 50 by bolts, and the top end of the main connecting shaft 10 extends out of the middle through hole of the upper end cover 50.

[0025] The top end of the main connecting shaft 10 is formed with an outer diameter smaller than the upper connecting shaft part 12 of the main connecting shaft 10, the upper connecting shaft part 12 is inserted into the downwardly extending sleeve body formed in the middle of the bottom surface of the brush disc connecting base 30, the top surface of the upper connecting shaft part 12 is pressed against the top surface of the sleeve body and is fixed and connected to the brush disc connecting base 30 by bolts.

[0026] Further, an upper annular groove is formed on the upper inner side wall of the middle through hole of the upper end cover 50, and a sealing element 3 is nested in the upper annular groove, and the inner side wall of the sealing element 3 is close to or in contact with the top end outer side wall of the main connecting shaft 10. The sealing element 3 of the present embodiment is a skeleton oil seal.

[0027] The bottom surface around the middle through hole of the upper end cover 50 is formed with an upper annular protruding part, which is inserted into the top of the main connecting sleeve 20, and the bottom surface is pressed against the top surface of the outer ring of the topmost second bearing 2.

[0028] A radially extending annular connecting part is formed on the outer side wall of the top of the brush disc connecting base 30, and a connecting through hole is formed on the annular connecting part;

[0029] A plurality of lower connecting through holes are formed at the edge of the lower end cover 40.

[0030] In use, the lower end cover 40 is fixedly connected to the top plate of the lower speed reducer by bolts, the connecting end 11 is connected to the output shaft of the speed reducer, and the brush disc is fixed to the top of the base 30 and provided with a brush.

[0031] The two second bearings 2 at the upper end are conical roller bearings with the model number HR30211J, which bear the radial force and axial force generated when the brush bristles are pricked, and the first bearing 1 at the lower end is a single-row deep-groove ball bearing with the model number 6211ZZ, which bears the radial force.

[0032] Through the above structure, the main connecting shaft 10 can be ensured to normally operate and not to be radially shaken, and the lower speed reducer can also be ensured to normally operate.

[0033] The above is only the preferred embodiment of the present application, and it should be pointed out that, for those skilled in the art, some improvements and refinements can be made without departing from the technical principles of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A connection structure for connecting the lower brush of a brush machine to the main shaft, comprising a main connecting shaft (10), characterized in that: The main connecting shaft (10) is inserted into the main connecting sleeve (20). The lower part of the main connecting shaft (10) is movably connected to the lower end of the main connecting sleeve (20) through the first bearing (1). The upper part of the main connecting shaft (10) is movably connected to the upper end of the main connecting sleeve (20) through the second bearing (2). The top end of the main connecting shaft (10) extends out of the top end of the main connecting sleeve (20) and is fixed with a brush plate connecting base (30). The bottom end of the main connecting sleeve (20) is fixed with a lower end cap (40).

2. The connection structure for connecting the lower brush of a brush machine to the main shaft according to claim 1, characterized in that: The main connecting shaft (10) has a connecting end (11) formed in the middle of its bottom end, which is inserted into the central through hole formed in the middle of the lower end cover (40). The bottom end of the connecting end (11) extends out of the bottom end of the central through hole, and a connecting hole for connection is formed in the middle of its bottom end face.

3. The connection structure for connecting the lower brush of a brush machine to the main shaft according to claim 1, characterized in that: The top surface around the central through hole of the lower end cover (40) is formed with an annular protrusion, which is inserted into the bottom of the main connecting sleeve (20), and its top surface presses against the bottom end surface of the outer ring of the first bearing (1).

4. The connection structure for connecting the lower brush of a brush machine to the main shaft according to claim 1, characterized in that: The upper part of the main connecting shaft (10) is movably connected to the upper end of the main connecting sleeve (20) through two second bearings (2); The two second bearings (2) are tapered roller bearings.

5. The connection structure for connecting the lower brush of a brush machine to the main shaft according to claim 1, characterized in that: The top end cover (50) is fixed on the top surface of the main connecting sleeve (20), and the top end of the main connecting shaft (10) extends out of the middle through hole of the upper end cover (50).

6. The connection structure for connecting the lower brush of a brush machine to the main shaft according to claim 1, characterized in that: The top surface of the top end of the main connecting shaft (10) is formed with an upper connecting shaft part (12) with an outer diameter smaller than that of the main connecting shaft (10). The upper connecting shaft part (12) is inserted into a downwardly extending sleeve formed in the middle of the bottom surface of the brush plate connecting base (30). The top surface of the upper connecting shaft part (12) is pressed against the top surface of the sleeve and fixedly connected to the brush plate connecting base (30) by bolts.

7. The connection structure for connecting the lower brush of a brush machine to the main shaft according to claim 5, characterized in that: An upper annular groove is formed on the upper inner side wall of the central through hole of the upper end cover (50), and the seal (3) is nested in the upper annular groove. The inner side wall of the seal (3) is close to or in close contact with the top outer side wall of the main connecting shaft (10).

8. The connection structure for connecting the lower brush of a brush machine to the main shaft according to claim 5, characterized in that: The bottom surface around the central through hole of the upper end cover (50) is formed with an upper annular protrusion, which is inserted into the top of the main connecting sleeve (20), and its bottom surface presses against the top surface of the outer ring of the topmost second bearing (2).

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