CN217529244U

CN217529244U - Independent driving mechanism of pinch roll

Info

Publication number: CN217529244U
Application number: CN202221046447.9U
Authority: CN
Inventors: 刘永超; 王闻生; 张少林; 杨彬
Original assignee: Yantai Kejie Cnc Mechanical Equipment Co ltd
Current assignee: Yantai Kejie Cnc Mechanical Equipment Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-10-04
Anticipated expiration: 2032-04-24

Abstract

The utility model discloses an independent actuating mechanism of pinch roll relates to metal cutting machine tool technical field, including pinch roll axle, bearing gland, planetary gear speed reducer and servo motor, servo motor one side is provided with planetary gear speed reducer. The utility model discloses a servo motor carries out direct drive to every pinch roll axle with planetary gear reducer, replaces original transfer case and universal joint drive mode, consequently the utility model has the advantages of simple structure, greatly reduced assembly work load, have labour saving and time saving to servo motor has the performance height, and planetary gear reducer has efficiently, uses with the low-power servo motor cooperation, and greatly reduced the energy consumption is low, has reduced use cost.

Description

Independent driving mechanism of pinch roll

Technical Field

The utility model relates to a metal cutting machine tool technical field especially relates to an independent actuating mechanism of pinch roll.

Background

The centerless lathe is used for processing the outer circle surfaces of cylindrical rods and pipes so as to remove surface hardening layers, cracks and other defects and further improve the quality of the cylindrical rods and the pipes; the special equipment is used for performing excircle rough turning and finish turning on metal bars made of various materials; the special machine tool is used for processing the excircle of a bar blank to obtain a round bar section with certain shape, size and roughness, and is suitable for occasions of mass production. When the device is used, a processed bar passes through a hollow main shaft, the bar is clamped by bar clamping and conveying devices arranged at the front end and the rear end of the main shaft and is pushed forwards and backwards to realize axial feeding in the bar turning process, the bar clamped by the bar clamping and conveying devices is in a concentric state with the main shaft, the bar clamping and conveying devices usually clamp the bar by a plurality of pairs of clamping discs which are arranged in pairs and rotate relatively, in order to adapt to clamping and conveying of bars with different diameters and keep the bar and the main shaft concentric all the time, the distance between each clamping disc in the two clamping discs arranged in pairs and the axis of the main shaft needs to be adjusted and kept equal, in order to adjust the distance, a certain mechanism is usually adopted to simultaneously adjust the distance between the two clamping discs arranged in pairs, so that the clamping discs synchronously move in opposite directions, and the equal distance and the convenience in adjustment are ensured.

The existing centerless lathe pinch roll drive device mainly comprises a drive motor, a coupler, a transfer case, a universal shaft system, a clamping device and a cantilever roll collar system, wherein the existing lathe pinch roll drive is generally that the motor torque of the drive motor is input into a lower shaft of the transfer case through the coupler, the transfer case is connected with pinch rolls through the universal coupler, and synchronous and reverse double-output motion is generated through the transfer case. However, the connection mode has the disadvantages of complex structure, difficult assembly, time and labor waste.

The technical scheme includes that the centerless lathe bar clamping and conveying device comprises a bar clamping and conveying support with a clamping disc sliding seat in a sliding support mode, clamping discs arranged in pairs, each clamping disc is rotatably supported on the corresponding clamping disc sliding seat, racks are respectively mounted on two sides of each clamping disc sliding seat, four racks on two clamping disc sliding seats corresponding to the same pair of clamping discs are arranged in pairs in an opposite mode, each pair of racks arranged in opposite mode are meshed with a gear, two racks arranged in opposite mode and meshed with the gear are located on different clamping disc sliding seats, the gear is rotatably supported on the bar clamping and conveying support, an interval adjusting driving device is correspondingly arranged on each two clamping discs arranged in pairs, and the interval adjusting driving device is connected with one clamping disc sliding seat. The clamping tray of the technical scheme is in transmission connection with the driving device of the clamping tray through the universal coupling or the chain wheel pair, the technical scheme can drive the clamping tray which changes positions along with different diameters of bars through the universal coupling and the chain wheel pair, but the universal coupling is in transmission connection with the driving device (the existing pinch roll driving device is formed by combining a transfer case and a driving motor), and the transfer case of the driving device is complex in internal structure, difficult to assemble and needs to be debugged on site for multiple times, so that the universal coupling needs to be assembled and disassembled continuously, and a large amount of manpower, material resources and time need to be consumed.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model aims at providing a pinch roll independent drive mechanism is connected through the mode of addding servo motor and planetary gear speed reducer and pinch roll axle adoption key-type connection, replaces the connected mode of current universal joint and transfer case, has structural design simple reasonable, and installation adjustment is convenient, practices thrift processing, manual work and cost of transportation, reduces customer use cost's advantage.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pinch roll independent drive mechanism, includes pinch roll axle, bearing gland, planetary gear reducer and servo motor, servo motor one side is provided with planetary gear reducer, planetary gear reducer's the direct suit of input is installed in servo motor's main shaft upside, planetary gear reducer passes through screw fixation to swing arm bearing frame one end, install cylindrical roller bearing on the swing arm bearing frame, planetary gear reducer's drive shaft disect insertion pinch roll axle carries out the key-type connection inside, realizes being connected of planetary gear reducer and pinch roll axle, cylindrical roller bearing's a pot head is established and is installed to the outer tip of leaking of speed reducer drive shaft, cylindrical roller bearing's another pot head is established and is installed in the end of pinch roll axle, pinch roll axle's front end outer wall and install double-row tapered roller bearing through tooth belly lock nut fixed connection to whole embedding is installed inside swing arm bearing frame, and is fixed through bearing gland, bearing gland passes through the screw fixation to the swing arm bearing frame other end.

Preferably, be provided with the skeleton oil blanket between bearing gland and the pinch roll axle, the skeleton oil blanket has the effect that prevents the lubricating oil seepage, add intensity and dirt-proof.

Preferably, the cylindrical roller bearing is a floatable cylindrical roller bearing, an inner ring or an outer ring of the floatable cylindrical roller bearing has no flange and can be used as a floatable support, and the inner ring and the outer ring can move relatively to the axial direction, so that the floatable cylindrical roller bearing can be used as a free end bearing.

Preferably, the planetary gear speed reducer adopts plug-in integral key shaft speed reducer, the roll shaft that pinch roll shaft adopted inside to set up for cavity, pass through the fixed motor connection spline housing of screw on the ring flange of pinch roll shaft inside, planetary gear speed reducer's drive shaft inserts the motor and connects the spline housing, connects, can realize being connected of planetary gear speed reducer and pinch roll shaft 1 through the key-type connection from this.

Preferably, a gasket is arranged between the driving end of the planetary gear reducer and the cylindrical roller bearing.

Preferably, a pressure oil filling cup is arranged on the swing arm bearing seat and is mainly used for regularly filling oil to the bearing for lubrication.

To sum up, the utility model discloses a beneficial technological effect does:

1. the utility model discloses a servo motor carries out direct drive to every pinch roller with planetary gear reducer, replaces original transfer case and universal joint transmission mode, consequently the utility model has the advantages of simple structure, greatly reduced assembly work load has labour saving and time saving to servo motor has the performance height, and planetary gear reducer has efficiently, uses with the cooperation of miniwatt servo motor, and greatly reduced the energy consumption low, has reduced use cost.

2. The utility model discloses an add servo motor and planetary gear speed reducer and press from both sides the mode that send the roller to adopt the key-type connection and be connected, replace the connected mode of current universal joint and transfer case, it is simple reasonable to have structural design, and installation adjustment is convenient, practices thrift processing, manual work and cost of transportation, reduces customer use cost's advantage.

Drawings

Fig. 1 is a schematic view of the overall structure of an independent driving mechanism of a pinch roll according to the present invention;

FIG. 2 is a schematic view of a part of the structure of an independent driving mechanism of a pinch roll of the present invention;

reference numerals: 1. a pinch roll shaft; 2. a bearing gland; 3. a framework oil seal; 4. a double-row tapered roller bearing; 5. pressing and filling the oil cup; 6. a flank locking nut; 7. a swing arm bearing seat; 8. a cylindrical roller bearing; 9. a gasket; 10. a planetary gear reducer; 11. a servo motor; 12. the end part of the reducer driving shaft is exposed outwards.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides the following technical solutions: the utility model relates to a first aid is with cricothyroid membrane puncture pipe of ventilating, send roller 1, bearing gland 2, planetary gear speed reducer 10 and servo motor 11 including pressing from both sides, servo motor 11 one side is provided with planetary gear speed reducer 10, the direct suit of input of planetary gear speed reducer 10 is installed in servo motor 11's main shaft upside, planetary gear speed reducer 10 passes through the screw fixation to swing arm bearing frame 7 one end, install cylindrical roller bearing 8 on swing arm bearing frame 7, planetary gear speed reducer 10's drive shaft disect insertion presss from both sides and send roller 1 inside, carries out the key-type connection, realizes planetary gear speed reducer 10 and the connection of pressing from both sides roller 1, cylindrical roller bearing 8's a pot head is established and is installed on the outer tip 12 of speed reducer drive shaft, cylindrical roller bearing 8's other pot head is established and is installed in the end of pressing from both sides roller 1 of pressing from both sides, press from both sides and install double-row tapered roller bearing 4 through flank locking nut 6 fixed connection on the front end outer wall of roller 1 to whole embedding is installed in swing arm bearing frame 7 inside, and is fixed through bearing gland 2 to the other end of swing arm bearing frame.

As shown in fig. 1, the present embodiment provides an independent drive mechanism for pinch rolls, which is characterized in that: be provided with skeleton oil blanket 3 between bearing gland 2 and the pinch roll axle 1, skeleton oil blanket 3 has the effect that prevents the lubricating oil seepage, add intensity and dirt-proof.

As shown in fig. 1, the present embodiment provides an independent drive mechanism for a pinch roll, which is characterized in that: the cylindrical roller bearing 8 is a floatable cylindrical roller bearing, an inner ring or an outer ring of the floatable cylindrical roller bearing is free of a flange and can be used as a floatable support, the inner ring and the outer ring can move relatively in the axial direction, so that the floatable cylindrical roller bearing can be used as a free end bearing, and the floatable cylindrical roller bearing plays a certain supporting role in the using process.

As shown in fig. 1, the present embodiment provides an independent drive mechanism for pinch rolls, which is characterized in that: planetary gear reducer 10 adopts bayonet integral key shaft speed reducer, pinch roller 1 adopts inside the roller that sets up for cavity, through the fixed motor connection spline housing of screw on the ring flange of pinch roller 1 inside, planetary gear reducer 10's drive shaft inserts the motor and connects the spline housing, connects, can realize planetary gear reducer and pinch roller 1's being connected through the key-type connection from this.

As shown in fig. 1, the present embodiment provides an independent drive mechanism for pinch rolls, which is characterized in that: and a gasket 9 is arranged between the driving end of the planetary gear reducer 10 and the cylindrical roller bearing 8.

As shown in fig. 1, the present embodiment provides an independent drive mechanism for pinch rolls, which is characterized in that: and the swing arm bearing seat 7 is provided with a pressure filling oil cup 5 which is mainly used for regularly oiling and lubricating the bearing.

The working principle of the embodiment is as follows:

the utility model discloses when using, only need utilize servo motor 11's positive and negative commentaries on classics, give planetary gear reducer 10 with its power transmission, planetary gear reducer 10's output shaft and pinch roller 1 are connected this moment, utilize servo motor and speed reducer can drive to pinch the roller and rotate.

Servo motor 11 one side is provided with planetary gear reducer 10, when connecting planetary gear reducer and pinch roller, because planetary gear reducer 10 adopts bayonet integral key shaft speed reducer to pinch roller 1 and adopt inside roller that sets up for cavity, pinch and connect the spline housing through the screw fixation motor on the ring flange of roller 1 inside, consequently only need with planetary gear reducer 10's drive shaft inserts the motor and connects the spline housing, connects, can realize planetary gear reducer and pinch roller 1's being connected from this through the key-type connection, then will cylindrical roller bearing 8's a pot head is established and is installed on the outer tip of leaking of speed reducer drive shaft, cylindrical roller bearing 8's another pot head is established and is installed in pinching the end of roller 1, strengthens planetary reducer and pinch roller hub connection's stability, then uses through servo motor and planetary gear reducer's cooperation, can pinch roller 1 to every and carry out direct drive, replaces original transfer case and universal coupling mode, consequently the utility model has simple structure, greatly reduced assembly work volume, has labour saving and time saving's advantage. The servo motor has high performance, and because the planetary gear reducer has high efficiency, the planetary gear reducer is matched with a low-power servo motor for use, the energy consumption is low, and the use cost is greatly reduced.

The above, only do the preferred embodiment of the present invention, not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an independent actuating mechanism of pinch roll, leaks tip (12), biserial tapered roller bearing (4), planetary gear speed reducer (10) and servo motor (11), its characterized in that including pinch roll axle (1), swing arm bearing frame (7), bearing cover (2), speed reducer drive shaft outward: servo motor (11) one side is provided with planetary gear speed reducer (10), the direct suit of input of planetary gear speed reducer (10) is installed in the main shaft upside of servo motor (11), the drive shaft disect insertion of planetary gear speed reducer (10) is sent roll axle (1) inside, carries out the key-type connection, planetary gear speed reducer (10) pass through the screw fixation to swing arm bearing frame (7) one end, install cylindrical roller bearing (8) on swing arm bearing frame (7).

2. A pinch roll independent drive mechanism as claimed in claim 1, wherein: the end cover of cylindrical roller bearing (8) is established and is installed on the outer hourglass tip (12) of speed reducer drive shaft, the other end cover of cylindrical roller bearing (8) is established and is installed in the end of pressing from both sides and sending roller (1), press from both sides and send and install double-row tapered roller bearing (4) through tooth abdomen lock nut (6) fixed connection on the front end outer wall of roller (1) to whole embedding is installed inside swing arm bearing seat (7), and is fixed through bearing gland (2), bearing gland (2) pass through the screw fixation to swing arm bearing seat (7), be provided with skeleton oil blanket (3) between bearing gland (2) and the pinch roller (1).

3. A pinch roll independent drive mechanism as claimed in claim 2, wherein: and the swing arm bearing seat (7) is provided with a pressure filling oil cup (5).

4. A pinch roll independent drive mechanism as claimed in claim 2, wherein: the cylindrical roller bearing (8) adopts a floatable cylindrical roller bearing.

5. A pinch roll independent drive mechanism as claimed in claim 1, wherein: the planetary gear speed reducer (10) adopts an inserted spline shaft speed reducer, and the pinch roll shaft (1) adopts a roll shaft with a hollow inside.

6. An independent drive mechanism for a pinch roll as claimed in claim 5, wherein: and a gasket (9) is arranged between the driving end of the planetary gear speed reducer (10) and the cylindrical roller bearing (8).