CN209036272U - A kind of grinder spindle mounting structure - Google Patents

Abstract

The utility model discloses a kind of grinder spindle mounting structures, including base, front and back is arranged at intervals with foreboard on base, middle plate and back plate, bearing mounting hole is equipped in middle plate and back plate, bearing is mounted in two bearings mounting hole, the trailing flank of back plate is equipped with bearing rear cover, it is characterized in that being equipped with spacer between two bearings, the both ends of spacer act against in two bearings respectively, the front end sleeve of main shaft is equipped with front shroud, the rear end cap of main shaft is equipped with back cover, it is acted against at the opening's edge of front shroud on the bearing in front, it is acted against in back plate at the opening's edge of back cover, main shaft is equipped with centre bore, front shroud, the bottom of back cover is equipped with through-hole, front shroud, back cover passes through locking bolt, lock-nut locking, locking bolt passes through the through-hole on front shroud, centre bore on main shaft, through-hole on back cover.It by the improvement of the utility model, solves the problems, such as that existing structure middle (center) bearing is difficult to install, so that the installation of bearing is accurately, in place, is conducive to the normal work of main shaft.

Description

A kind of grinder spindle mounting structure

Technical field

The utility model relates to a kind of grinder spindle mounting structures.

Background technique

Grinder is the machinery for being ground to raw material.The main shaft of grinder is its main component, Ask installation accurate, to guarantee the stability of work.

Existing grinder spindle mounting structure includes base, and base is equipped with foreboard, middle plate and back plate, the front side of foreboard Face is used to connect with cylinder barrel, connects the end cap that foreboard after cylinder barrel forms cylinder barrel, is equipped on middle plate and the opposite lateral surface of back plate Mounting hole is mounted on bearing in two mounting holes, is equipped with main shaft on base, main shaft pass through the inner hole of two bearings and with bearing Inner ring is connected.

Existing structure has the following disadvantages: that due to the narrow space between foreboard and middle plate, the bearing on middle plate installs ratio It is more difficult, it usually will appear and situation not in place be installed.

Summary of the invention

The purpose of this utility model is to provide a kind of grinder spindle mounting structure regarding to the issue above, to facilitate main shaft Installation.

In order to achieve the above objectives, the utility model includes base, on base front and back be arranged at intervals with foreboard, middle plate and after Plate is equipped with bearing mounting hole on middle plate and back plate, bearing is mounted in two bearings mounting hole, the trailing flank of back plate is equipped with Bearing rear cover, it is characterized in that being equipped with spacer between two bearings, the both ends of spacer act against in two bearings respectively, the front end sleeve of main shaft Equipped with front shroud, the rear end cap of main shaft is equipped with back cover, acts against on the bearing in front at the opening's edge of front shroud, at the opening's edge of back cover Act against in back plate, main shaft is equipped with centre bore, front shroud, back cover bottom be equipped with through-hole, front shroud, back cover pass through locking spiral shell Bolt, lock-nut locking, locking bolt pass through through-hole, the centre bore on main shaft, the through-hole on back cover on front shroud.Using above-mentioned After structure, bearing rear cover limits the bearing at rear, before spacer can make between two bearings, by screwing lock-nut Cover moves backward, and the opening's edge of front shroud has press effect to front bearing, thus bearing can be made to be installed in place, bearing is installed Afterwards, locking bolt, lock-nut, front shroud, back cover are removed, in the installed in front bearing front cover of middle plate.

Bearing positioned at front is deep groove ball bearing, is acted against at the opening's edge of the front shroud positioned at the outer ring of front bearing. In existing structure, the outer ring that fore bearing is acted against at the opening's edge on front shroud top can make the installation of bearing sufficiently, in place.

The bearing being located behind is roller bearing.Two bearings are all deep groove ball bearings in existing structure, axial not compensate, Rear bearing is roller bearing, and roller bearing has certain nose balance space, be can avoid because of deformation caused by expanding with heat and contract with cold.

The grinder spindle mounting structure, it is characterized in that surrounding bearing mounting hole ring cloth on the leading flank of the foreboard There are three limited block, the oral area of front shroud is located between three limited blocks.Three limited blocks have position-limiting action to front shroud, can prevent Front shroud deviates scheduled position when installing bearing.

Around bearing mounting hole ring cloth there are three fixture block on the trailing flank of the back plate, set that there are three lack at the opening's edge of back cover Mouthful, the indentation, there on fixture block insertion back cover in back plate.Three notches on three fixture blocks and back cover cooperate, to the position of back cover With restriction effect, prevent back cover when installation bearing from deviateing scheduled position.

In conclusion solve the problems, such as that existing structure middle (center) bearing is difficult to install by the improvement of the utility model, so that The installation of bearing accurately, in place, is conducive to the normal work of main shaft.

Detailed description of the invention

Specific embodiment of the present utility model is further described in detail with reference to the accompanying drawing:

Fig. 1 is the mounting structure schematic diagram of existing grinder main shaft；

Fig. 2 is the structural schematic diagram of the utility model；

Fig. 3 is the front shroud mounting structure schematic diagram in Fig. 2 after line A-A cutting；

Fig. 4 is the installation structure of rear hood schematic diagram in Fig. 2 after line B-B cutting.

Specific embodiment

Referring to Fig.1, existing grinder spindle mounting structure includes base 1, base 1 be equipped with foreboard 2, middle plate 3 and after Plate 4, foreboard 2 are equipped with through-hole, and the leading flank of foreboard 2 is used to connect with cylinder barrel, connect the end of the formation cylinder barrel of foreboard 2 after cylinder barrel It covers, is equipped with mounting hole 5 on middle plate 3 and back plate 4, bearing 6 is mounted in two mounting holes 5, main shaft 7 is installed on base 1, it is main Axis 7 passes through the inner hole of two bearings 6 and is connected by the inner ring of bearing 6.Existing structure has the following disadvantages: due to foreboard and middle plate Between narrow space, the bearing installation on middle plate is relatively difficult, usually will appear and installs situation not in place, it is therefore necessary to A kind of grinder spindle mounting structure is designed, to facilitate the installation of main shaft.

Referring to Fig. 2, improved grinder spindle mounting structure includes base 1, and front and back is arranged at intervals with foreboard on base 1 2, middle plate 3 and back plate 4 are equipped with bearing mounting hole 5 on middle plate 3 and back plate 4, bearing 6 are mounted in two bearings mounting hole 5, The trailing flank of back plate 4 is equipped with bearing rear cover 8, it is characterized in that being equipped with spacer 9 between two bearings 6, the both ends of spacer 9 abut against respectively In two bearings 6, the front end sleeve of main shaft 7 is equipped with front shroud 10, and the rear end cap of main shaft 7 is equipped with back cover 11, pushes up at the opening's edge of front shroud 10 It leaning against on the bearing 6 positioned at front, is acted against at the opening's edge of back cover 11 in back plate 4, main shaft 7 is equipped with centre bore 12, front shroud 10, The bottom of back cover 11 is equipped with through-hole, and front shroud 10, back cover 11 are locked by locking bolt 13, lock-nut 14, locking bolt 13 The centre bore 12 on through-hole, main shaft 7, the through-hole on back cover 11 on front shroud 10.After adopting the above structure, bearing rear cover 8 The bearing 6 at rear is limited, spacer 9 can be such that front shroud 10 transports backward between two bearings 6, by screwing lock-nut 14 Dynamic, the opening's edge of front shroud 10 has press effect to front bearing 6, thus bearing 6 can be made to be installed in place, after bearing 6 is installed, Locking bolt 13, lock-nut 14, front shroud 10, back cover 11 are removed, in the installed in front bearing front cover of middle plate 3.Thus may be used See, by the improvement of the utility model, solve the problems, such as that existing structure middle (center) bearing 6 is difficult to install, so that the installation of bearing 6 is quasi- Really, in place, be conducive to the normal work of main shaft 7.

Bearing 6 positioned at front is deep groove ball bearing, is acted against at the opening's edge of the front shroud 10 positioned at the outer of front bearing 6 Circle, the bearing 6 being located behind are roller bearing.In existing structure, the outer ring that fore bearing is acted against at the opening's edge that front shroud 10 pushes up can Make the installation of bearing 6 sufficiently, in place.Two bearings 6 are all deep groove ball bearings in existing structure, and axial not compensate, rear bearing is Roller bearing, roller bearing have certain nose balance space, can avoid because of deformation caused by expanding with heat and contract with cold.

Referring to Fig. 3, Fig. 4, limited block 15 there are three 5 ring cloth of bearing mounting hole is surrounded on the leading flank of foreboard 2, front shroud 10 Oral area is located between three limited blocks 15.Three limited blocks 15 to front shroud 10 have position-limiting action, can prevent installation bearing 6 when before Cover 10 deviates scheduled position.Around 5 ring cloth of bearing mounting hole, there are three fixture block 16, the mouths of back cover 11 on the trailing flank of back plate 4 It sets along place there are three notch 17, the fixture block 16 in back plate 4 is inserted at the notch 17 on back cover 11.On three fixture blocks 16 and back cover 11 The cooperation of three notches 17, there is restriction effect to the position of back cover 11, prevent back cover 11 when installation bearing 6 from deviateing scheduled position It sets.

In conclusion the utility model is not limited to above-mentioned specific embodiment.Those skilled in the art are not departing from this reality Under the premise of with novel spirit and scope, several change and modification can be done, it is practical new that all these variations should all fall into this The protection scope of type.

Claims (5)

1. a kind of grinder spindle mounting structure, including base (1), front and back is arranged at intervals with foreboard (2), middle plate on base (1) (3) and back plate (4) it, is equipped with bearing mounting hole (5) in middle plate (3) and back plate (4), is mounted in two bearings mounting hole (5) Bearing (6), the trailing flank of back plate (4) are equipped with bearing rear cover (8), it is characterized in that spacer (9) are equipped between two bearings (6), every The both ends of set (9) are acted against respectively on two bearings (6), and the front end sleeve of main shaft (7) is equipped with front shroud (10), the rear end cap of main shaft (7) Equipped with back cover (11), acts against at the opening's edge of front shroud (10) on the bearing (6) in front, acted against at the opening's edge of back cover (11) In back plate (4), main shaft (7) is equipped with centre bore (12), front shroud (10), back cover (11) bottom be equipped with through-hole, front shroud (10), Back cover (11) by locking bolt (13), lock-nut (14) lock, locking bolt (13) pass through front shroud (10) on through-hole, master The through-hole on centre bore (12), back cover (11) on axis (7).

2. grinder spindle mounting structure according to claim 1, it is characterized in that the bearing (6) for being located at front is deep-groove ball Bearing acts against the outer ring positioned at front bearing (6) at the opening's edge of the front shroud (10).

3. grinder spindle mounting structure according to claim 1, it is characterized in that the bearing (6) being located behind is Roller Shaft It holds.

4. according to claim 1 to grinder spindle mounting structure described in any one of 3 claims, it is characterized in that before described Around bearing mounting hole (5) ring cloth there are three limited block (15) on the leading flank of plate (2), the oral area of front shroud (10) is located at three limits Between position block (15).

5. according to claim 1 to grinder spindle mounting structure described in any one of 3 claims, it is characterized in that after described Around bearing mounting hole (5) ring cloth there are three fixture block (16) on the trailing flank of plate (4), set that there are three lack at the opening's edge of back cover (11) Mouthful (17), at the notch (17) in fixture block (16) insertion back cover (11) in back plate (4).