CN209906282U - Transmission device for crucible cleaning machine - Google Patents
Transmission device for crucible cleaning machine Download PDFInfo
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- CN209906282U CN209906282U CN201920757764.3U CN201920757764U CN209906282U CN 209906282 U CN209906282 U CN 209906282U CN 201920757764 U CN201920757764 U CN 201920757764U CN 209906282 U CN209906282 U CN 209906282U
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- main shaft
- sleeve
- shaft sleeve
- crucible
- transmission device
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Abstract
A transmission device for a crucible cleaning machine is characterized in that a lifting motor reducer is arranged on a top platform and drives a lead screw to rotate; the screw rod and the nut are connected with the main shaft, and the upper end of the main shaft is fixed on the lifting platform; the lower end of the main shaft is provided with a main shaft sleeve, and the upper part of the main shaft sleeve is provided with a gear; the outer side of the main shaft sleeve is also provided with a deep groove ball bearing and a tapered roller bearing; the rotating motor reducer drives the main shaft sleeve to rotate through gear engagement; the brush component is fixed at the other end of the main shaft and goes up and down and rotates along with the main shaft; the rotating motor reducer transmits torque through gear engagement and drives the main shaft sleeve to rotate, the main shaft and the main shaft sleeve are in surface contact to drive rotation, and the lifting and the rotation of the main shaft are carried out in the crucible through the lifting and the rotation of the brush assembly to clean the crucible; the crucible after electric arc melting is cleaned, the structure is simple and compact, the cost is low, the reliability is high, the assembly and the maintenance are convenient, and the service life is long.
Description
Technical Field
The utility model belongs to the technical field of the crucible washs, concretely relates to a transmission for crucible cleaning machine.
Background
The crucible cleaning machine is a special device designed for cleaning the crucible after the melting production of the vacuum consumable electrode electric arc furnace, displays the natural color of the crucible material by cleaning the attachments on the inner wall of the crucible, and prepares for the next melting. The operation action of the equipment mainly comprises lifting motion and main rotating motion, wherein the lifting motion is completed by driving the movable platform to lift through a lead screw nut at the top, and the main rotating motion is completed by driving a main shaft to rotate through a transmission device.
At present, a motor reducer is adopted by a transmission device to drive a main shaft sleeve to rotate, a fixed key is embedded on the main shaft sleeve, a corresponding long key groove is processed on a main shaft, and the motor torque is transmitted to the main shaft through the key in the operation process to realize the rotation of the main shaft. The main shaft rotates and simultaneously has lifting motion, so that relative motion exists between the shaft sleeve key and the main shaft. Generally, the lifting stroke of the spindle is large, and a certain machining error exists in a key groove, so that the situation that the key falls off and damages the spindle and the spindle sleeve easily occurs in the actual production process, and the equipment is damaged. The existing transmission device has the problems of complex structure, difficulty in assembly and maintenance, high processing cost, high failure rate and the like.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a transmission device for a crucible cleaning machine. The problems of complex structure, difficult assembly and maintenance, high processing cost, high failure rate and the like of the conventional transmission device are solved; the device has the characteristics of simple and compact structure, low cost, high reliability, convenience in assembly and maintenance and long service life.
In order to achieve the above object, the utility model adopts the following technical scheme: a transmission device for a crucible cleaning machine comprises a lifting motor reducer, wherein the lifting motor reducer is arranged on a top platform and drives a lead screw to rotate; the lead screw and the nut are connected with the main shaft, the upper end of the main shaft is fixed on the lifting platform, and the main shaft is driven by the lead screw and the nut to perform lifting motion; the supporting columns on the two sides of the lifting platform are provided with an upper limit and a lower limit; the lifting limit is limited by an upper limit and a lower limit; a main shaft sleeve is arranged at the lower section of the main shaft, and a gear is arranged at the upper part of the main shaft sleeve; the outer side of the main shaft sleeve is also provided with a deep groove ball bearing and a tapered roller bearing; the rotating motor reducer drives a main shaft sleeve to rotate through gear engagement, the main shaft sleeve is positioned by a deep groove ball bearing and a tapered roller bearing, the deep groove ball bearing and the tapered roller bearing are axially positioned by an inner sleeve and an outer sleeve, and are radially positioned by a bearing seat fixed on the machine base; the main shaft slides up and down freely in the main shaft sleeve and is driven by the main shaft sleeve to rotate, and the brush assembly is fixed at the other end of the main shaft and ascends and descends and rotates along with the main shaft.
The main shaft sleeve is made of a graphite lubricating sleeve, and the main shaft is made of 45# steel.
The main shaft sleeve is formed by combining two bearing bushes.
The main shaft sleeve is radially and axially positioned by two groups of deep groove ball bearings and two groups of tapered roller bearings.
The inner hole of the spindle sleeve consists of two sections of cylindrical surfaces and two sections of planes, and the two sections of planes are parallel and are arranged at intervals with the cylindrical surfaces.
Two sections of planes are processed on two sides of the circumference of the main shaft and penetrate through the whole axial length.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the main shaft sleeve is formed by combining two bearing bushes, and the convenience of assembly and maintenance is guaranteed.
2) The main shaft sleeve has axial force and radial force in the operation process, wherein two groups of tapered roller bearings are used for bearing the axial force, and two groups of deep groove ball bearings are used for bearing the radial force, so that the stability and the reliability of the main shaft sleeve are ensured.
3) The main shaft sleeve is formed by processing a graphite lubricating sleeve, has good lubricating performance and ensures the flexible sliding of the main shaft in the main shaft sleeve in the operation process.
4) The main shaft is in torque transmission between the main shaft sleeves through the contact between the planes, and the transmission reliability is guaranteed.
The transmission device has the advantages of simple and compact structure, low cost, high reliability, convenient assembly and maintenance, long service life and capability of conveniently and reliably cleaning the crucible after electric arc melting.
Drawings
Fig. 1 is a schematic structural view of the main shaft crucible cleaning machine of the present invention.
Fig. 2 is a schematic structural view of transmission between the main shaft and the main shaft sleeve of the present invention.
Fig. 3 is an enlarged cross-sectional view of the main shaft of the present invention.
Fig. 4 is a side view of the spindle cover of the present invention.
Fig. 5 is a plan view of the spindle cover of the present invention.
In the figure, 1, a lifting motor reducer, 2, a top platform, 3, a lead screw, 4, a nut, 5, a lifting platform, 6, a main shaft, 7, a rotating motor reducer, 8, a gear, 9, a machine base, 10, a brush assembly, 11, a lower limit, 12, an upper limit, 13, a main shaft sleeve, 14, a deep groove ball bearing, 15, a tapered roller bearing, 16, a bearing seat, 17, an inner sleeve, 18, an outer sleeve, 19, a cylindrical surface and 20 planes.
Detailed Description
The structure and operation of the present invention will be described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1-4, a transmission device for a crucible cleaning machine comprises a lifting motor reducer 1, wherein the lifting motor reducer 1 is installed on a top platform 2, and the lifting motor reducer 1 drives a screw rod 3 to rotate; the lead screw 3 and the nut 4 are connected with a main shaft 6, the upper end of the main shaft 6 is fixed on a lifting platform 5, and the main shaft 6 is driven by the lead screw 3 and the nut 4 to move up and down; the supporting columns on the two sides of the lifting platform 5 are provided with an upper limit 12 and a lower limit 11; the lifting limit is limited by an upper limit 12 and a lower limit 11; a main shaft sleeve 13 is arranged at the lower section of the main shaft 6, and a gear 8 is arranged at the upper part of the main shaft sleeve 13; the outer side of the main shaft sleeve 13 is also provided with a deep groove ball bearing 14 and a tapered roller bearing 15; the rotating motor reducer 7 drives a main shaft sleeve 13 to rotate through meshing of a gear 8, the main shaft sleeve 13 is positioned by a deep groove ball bearing 14 and a tapered roller bearing 15, the deep groove ball bearing 14 and the tapered roller bearing 15 are axially positioned by an inner sleeve 17 and an outer sleeve 18 and are radially positioned by a bearing seat 16 fixed on a machine base 9; the main shaft 6 slides up and down freely in the main shaft sleeve 13 and is driven to rotate by the main shaft sleeve 13, and the brush assembly 10 is fixed at the other end of the main shaft 6 and ascends and descends along with the main shaft 6.
The main shaft sleeve 3 is made of a graphite lubricating sleeve, and the main shaft 6 is made of 45# steel.
The main shaft sleeve is formed by combining two bearing bushes.
The main shaft sleeve is radially and axially positioned by two groups of deep groove ball bearings and two groups of tapered roller bearings.
Referring to fig. 4-5, the inner bore of the spindle cover is composed of two sections of cylindrical surfaces 19 and two sections of planes 20, which are parallel and spaced apart from the cylindrical surfaces.
Two sections of planes are processed on two sides of the circumference of the main shaft and penetrate through the whole axial length.
The main shaft and the main shaft sleeve are driven to rotate through surface contact, the main shaft is driven to move up and down through the lifting motor reducer through a lead screw nut, and the lifting and rotating movement of the main shaft finally lifts and rotates in the crucible through a brush assembly to clean the crucible; the crucible after the electric arc melting is cleaned.
The utility model discloses with the working process who washs the crucible:
1) the lifting motor reducer drives the screw rod to rotate, the screw rod nut is matched with the main shaft fixed on the lifting platform to perform lifting motion, and the brush assembly fixed at the other end of the main shaft can lift in the crucible to clean the crucible.
2) The rotating motor reducer drives the main shaft sleeve to rotate through gear engagement, the main shaft sleeve and the main shaft are in plane contact to enable the main shaft to rotate, and at the moment, the brush assembly fixed at the other end of the main shaft can rotate in the crucible to clean the crucible.
3) The main shaft sleeve is axially and radially positioned by a deep groove ball bearing and a tapered roller bearing, and the main shaft can freely slide and lift in the main shaft sleeve.
Claims (6)
1. A transmission device for a crucible cleaning machine comprises a lifting motor reducer (1), wherein the lifting motor reducer (1) is arranged on a top platform (2), and the lifting motor reducer (1) drives a lead screw (3) to rotate; the device is characterized in that a lead screw (3) and a nut (4) are connected with a main shaft (6), the upper end of the main shaft (6) is fixed on a lifting platform (5), and the main shaft (6) is driven by the lead screw (3) and the nut (4) to move up and down; the supporting columns on the two sides of the lifting platform (5) are provided with an upper limit (12) and a lower limit (11); a main shaft sleeve (13) is arranged on the lower section of the main shaft (6), and a gear (8) is arranged on the upper part of the main shaft sleeve (13); the outer side of the main shaft sleeve (13) is also provided with a deep groove ball bearing (14) and a tapered roller bearing (15); the rotating motor reducer (7) is meshed through a gear (8) to drive a main shaft sleeve (13) to rotate, the main shaft sleeve (13) is positioned by a deep groove ball bearing (14) and a tapered roller bearing (15), the deep groove ball bearing (14) and the tapered roller bearing (15) are axially positioned by an inner sleeve (17) and an outer sleeve (18), and are radially positioned by a bearing seat (16) fixed on a machine base (9); the main shaft (6) slides up and down freely in the main shaft sleeve (13) and is driven to rotate by the main shaft sleeve (13), and the brush assembly (10) is fixed at the other end of the main shaft (6) and ascends and descends along with the main shaft (6) and rotates.
2. The transmission device for the crucible cleaning machine as claimed in claim 1, wherein the material of the spindle sleeve (13) is graphite lubrication sleeve, and the material of the spindle (6) is 45# steel.
3. The transmission device for the crucible cleaning machine as claimed in claim 1, wherein the spindle sleeve is formed by combining two bearing shells.
4. The transmission device for the crucible cleaning machine as claimed in claim 1, wherein the spindle sleeve is radially and axially positioned by two sets of deep groove ball bearings and two sets of tapered roller bearings.
5. The transmission device for the crucible cleaning machine according to claim 1, wherein the inner hole of the spindle sleeve is composed of two sections of cylindrical surfaces (19) and two sections of planes (20), and the two sections of planes are parallel and are arranged at intervals with the cylindrical surfaces.
6. The transmission device for the crucible cleaning machine as claimed in claim 1, wherein two sections of planes are processed on two sides of the circumference of the main shaft, and the two sections of planes penetrate through the whole shaft length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920757764.3U CN209906282U (en) | 2019-05-24 | 2019-05-24 | Transmission device for crucible cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920757764.3U CN209906282U (en) | 2019-05-24 | 2019-05-24 | Transmission device for crucible cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209906282U true CN209906282U (en) | 2020-01-07 |
Family
ID=69048874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920757764.3U Active CN209906282U (en) | 2019-05-24 | 2019-05-24 | Transmission device for crucible cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209906282U (en) |
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2019
- 2019-05-24 CN CN201920757764.3U patent/CN209906282U/en active Active
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