CN217301556U

CN217301556U - Lower center mechanism for quenching machine tool

Info

Publication number: CN217301556U
Application number: CN202221108083.2U
Authority: CN
Inventors: 杨晓东; 杨继贤; 陶胜艺; 张亮飞; 鲍天明; 王胜利
Original assignee: Luoyang Shining Inducation Heating Co ltd
Current assignee: Luoyang Shining Inducation Heating Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-08-26
Anticipated expiration: 2032-05-10

Abstract

The application relates to a lower tip mechanism for a quenching machine tool, which comprises: the fixed plate, the transmission shaft, driving gear and main shaft, be equipped with actuating mechanism and transmission case relatively on the fixed plate, transmission shaft one end is connected with the actuating mechanism transmission, the other end stretches into the transmission case and rotates with the transmission case and be connected, actuating mechanism is used for driving the transmission shaft and rotates, the driving gear is located the transmission case and sets up on the transmission shaft, the main shaft rotates and establishes in the transmission case, the main shaft sets up with the transmission shaft quadrature, main shaft wherein one end stretches out the transmission case and the tip is equipped with down top, be equipped with the driven gear with driving gear quadrature meshing on the main shaft. The transmission mechanism is simple in structure, large in transmission torque, high in transmission precision and low in transmission noise.

Description

Lower center mechanism for quenching machine tool

Technical Field

The utility model relates to the technical field of heat treatment equipment, in particular to a lower center mechanism for a quenching machine tool.

Background

Quenching machine tools are various in forms, such as light machine tools, heavy machine tools and the like; however, with the continuous progress of the times, the precision of the quenching machine tool is higher and higher, particularly the rotating precision of the lower center is higher and higher, and the lower center is generally used as the main power for rotating the workpiece; the lower tip transmission form of the prior quenching machine tool is generally a form of direct transmission or transmission through a bevel gear. However, in the direct transmission mode, the rotating motor reducer of the structure is required to be arranged below the lower center due to the structural mode, and liquid spraying is carried out after the quenching machine tool is heated, so that the motor water spraying is frequently damaged due to the structure; another structure using bevel gear transmission, although the position of the motor is changed; however, as the gap of the bevel gear is too large in the transmission process, the gap is larger and larger along with the increase of the service time, and the rotation precision of the workpiece is influenced; and the bevel gear has higher transmission noise.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a lower center mechanism for a quenching machine tool, which has simple structure, large transmission torque, high transmission precision and low transmission noise.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: a lower tip mechanism for a quench machining tool, comprising:

the fixed plate is provided with a driving mechanism and a transmission case oppositely;

one end of the transmission shaft is in transmission connection with the driving mechanism, the other end of the transmission shaft extends into the transmission box and is in rotational connection with the transmission box, and the driving mechanism is used for driving the transmission shaft to rotate;

a driving gear located in the transmission case and disposed on the transmission shaft,

the main shaft is rotatably arranged in the transmission box, the main shaft is orthogonal to the transmission shaft, one end of the main shaft extends out of the transmission box, a lower tip is arranged at the end of the main shaft, and a driven gear which is orthogonally meshed with the driving gear is arranged on the main shaft. This application drives the rotatory driving gear that makes the transmission case of transmission shaft through actuating mechanism and rotates, drives the main shaft and top rotation down through driving gear and driven gear meshing, and rotation accuracy is high, reduced driven noise, increased the transmission moment of torsion.

Furthermore, the driving mechanism comprises a speed reduction motor and a driving motor, the output end of the driving motor is connected with the input end of the speed reduction motor, and the output end of the speed reducer is connected with the transmission shaft.

Further, the gear motor is an NMRV worm gear reducer.

Further, the driving motor is a three-phase asynchronous motor.

Furthermore, the transmission shaft is provided with a baffle ring, the transmission shaft is sleeved with a spring, and the spring is located between the baffle ring and the driving gear. Through setting up the spring, the spring can give driving gear a thrust elimination gear drive's clearance, improves transmission precision, reduces transmission noise, improves the transmission moment of torsion.

Furthermore, a counter bore matched with the lower tip is formed in the main shaft, a first connecting ring is arranged on the lower tip, a second connecting ring is arranged on the main shaft, and the first connecting ring and the second connecting ring are connected through screws. Through the arrangement of the counter bore, the coaxiality of the lower center is guaranteed, and the rotation precision of the lower center is improved.

Further, a blocking cover is in threaded connection with the outer circumference of the second connecting ring.

Further, the driving gear and the driven gear are both orthogonal gears.

Further, the driving gear and the transmission shaft are connected through a first key.

Further, the driven gear and the main shaft are connected through a second key.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a top view of fig. 1.

The labels in the figure are: 1. the device comprises a driving mechanism, 2, a fixing plate, 3, a transmission shaft, 4, a driven gear, 5, a lower tip, 6, a main shaft, 601, a counter bore, 7, a spring, 8, a driving gear, 9, a transmission case, 10, a baffle ring, 11, a first key, 12, a second key, 13, a baffle cover, 14, a second connecting ring, 15, a first connecting ring, 16 and a screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-3, the present invention provides a lower center mechanism for a quenching machine tool, comprising: the device comprises a fixed plate 2, a transmission shaft 3, a driving gear 8 and a main shaft 6, wherein the fixed plate 2 is relatively provided with a driving mechanism 1 and a transmission box 9, the transmission shaft 3 is horizontally arranged, the transmission shaft 3 is arranged parallel to the fixed plate 2, one end of the transmission shaft 3 is in transmission connection with the driving mechanism 1, the other end of the transmission shaft 3 extends into the transmission box 9 and is in rotational connection with the transmission box 9, the driving mechanism 1 is used for driving the transmission shaft 3 to rotate, the driving gear 8 is positioned in the transmission box 9 and is arranged on the transmission shaft 3, the main shaft 6 is rotationally arranged in the transmission box 9, the main shaft 6 is vertically arranged, the main shaft 6 is orthogonally arranged with the transmission shaft 3, one end of the main shaft 6 extends out of the transmission box 9, the end part of the main shaft is provided with a lower tip 5, the main shaft 6 is provided with a driven gear 4 orthogonally meshed with the driving gear 8, the driving gear 8 and the driven gear 4 are both orthogonal gears, the driving gear 8 is connected with the transmission shaft 3 through a first key 11, the driven gear 4 and the main shaft 6 are connected through a second key 12, and the axis of the main shaft 6 is orthogonal to the axis of the transmission shaft 3 and is not in contact with the transmission shaft.

Wherein, as shown in fig. 1 and fig. 3, actuating mechanism 1 includes gear motor and driving motor, driving motor's output is connected with gear motor's input, and the output and the transmission shaft 3 of speed reducer are connected, gear motor is NMRV worm gear speed reducer, driving motor is three-phase asynchronous machine, and NMRV worm gear speed reducer is prior art, and this application is not described here in detail, and NMRV worm gear speed reducer is connected with output and transmission shaft 3 also is prior art, and this application is not described here in detail, and this application speed reducer and motor lead to one side, avoid speed reducer and motor trickle to damage, have improved the life of motor and speed reducer greatly.

Specifically, as shown in fig. 3, a retaining ring 10 is arranged on the transmission shaft 3, a spring 7 is sleeved on the transmission shaft 3, the spring 7 is located between the retaining ring 10 and the driving gear 8, the transmission shaft 3 includes a first shaft section, a second shaft section, a third shaft section and a fourth shaft section, the diameters of the first shaft section, the second shaft section, the third shaft section and the fourth shaft section are sequentially reduced, the first shaft section, the second shaft section, the third shaft section and the fourth shaft section are coaxially arranged, the end portion, far away from the second shaft section, of the first shaft section is connected with the output end of the speed reducer, a first bearing used for being rotatably connected with the transmission case 9 is arranged on the second shaft section, the driving gear 8 is arranged on the third shaft section through a first key 11, a second bearing used for being rotatably connected with the transmission case 9 is arranged on the fourth shaft section, a front end cover is arranged at the front end of the second bearing on the transmission case 9, a rear end of the first bearing is arranged on the transmission case 9, both the spring 7 and the retaining ring 10 are sleeved on the third shaft section, spring 7 one end offsets with driving gear 8, and the other end offsets with keeping off ring 10, and under the effect of spring 7 elasticity, keep off ring 10 and second bearing and offset, keep off ring 10, spring 7, driving gear 8 and driven gear 4 and all be located transmission case 9, and spring 7 can give 8 axial thrusts of driving gear, has eliminated gear drive's clearance, has improved transmission precision, has reduced the transmission noise.

In addition, as shown in fig. 1 and fig. 2, the main shaft 6 and the lower tip 5 are coaxially arranged, the tip portion of the lower tip 5 is arranged upward, a counter bore 601 matched with the lower tip 5 is arranged on the main shaft 6, the counter bore 601 is arranged at the end portion of the main shaft 6 extending out of the transmission case 9, the upper end of the main shaft 6 extends out of the transmission case 9, the counter bore 601 is arranged at the upper end of the main shaft 6, a first connecting ring 15 is arranged on the lower tip 5, the first connecting ring 15 is arranged near the lower end of the lower tip 5, a second connecting ring 14 is arranged on the main shaft 6, the second connecting ring 14 is arranged outside the transmission case 9, the first connecting ring 15 is connected with the second connecting ring 14 through a screw 16, after the lower end of the lower tip 5 extends into the counter bore 601, the first connecting ring 15 is connected with the second connecting ring 14 through the screw 16, the lower tip 5 is fixed on the main shaft 6, the plurality of screws 16 are arranged, and the coaxiality of the lower tip 5 is ensured by arranging the counter bore 601, the rotation accuracy of the lower center 5 is improved.

The working principle of this application does: the torque output by the driving mechanism 1 is transmitted to the transmission shaft 3 to drive the driving gear 8 in the transmission box 9 to rotate, the main shaft 6 is transmitted to the lower tip 5 to rotate through meshing with the driven gear 4, the spring 7 provides a thrust for the driving orthogonal gear 8 to eliminate a gear transmission gap, the transmission precision is improved, the transmission noise is reduced, and the transmission torque is improved.

The transmission structure is different from the existing transmission structure, the transmission precision is improved, the transmission torque is increased, the transmission noise is reduced, the service lives of the motor and the speed reducer are prolonged, the whole lower top transmission structure is more reasonable, and the transmission structure is suitable for light quenching machine tools which need to rotate top down.

Of course, the present invention is not limited to the above-described embodiments, and several other embodiments based on the design concept of the present invention are provided below.

For example, in other embodiments, different from the above-described embodiments, as shown in fig. 1 and fig. 2, a blocking cover 13 is screwed on the outer circumference of the second connection ring 14, the blocking cover 13 is concave and the concave surface faces the transmission case 9, the lower end of the blocking cover 13 is not in contact with the transmission case 9, and the blocking cover 13 is arranged to play a role of water prevention, so that water is prevented from entering the transmission case 9, the transmission mechanism is prevented from being rusted, and the service life of the mechanism is prolonged.

It should be noted that the above embodiments are only used for illustrating the present invention, but the present invention is not limited to the above embodiments, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention all fall into the protection scope of the present invention.

Claims

1. A lower tip mechanism for a quenching machine tool is characterized by comprising:

the fixed plate (2) is provided with a driving mechanism (1) and a transmission case (9) oppositely;

one end of the transmission shaft (3) is in transmission connection with the driving mechanism (1), the other end of the transmission shaft extends into the transmission box (9) and is in rotary connection with the transmission box (9), and the driving mechanism (1) is used for driving the transmission shaft (3) to rotate;

a drive gear (8) located within a transmission case (9) and disposed on the drive shaft (3),

the main shaft (6) is rotatably arranged in the transmission box (9), the main shaft (6) and the transmission shaft (3) are orthogonally arranged, one end of the main shaft (6) extends out of the transmission box (9), the end part of the main shaft is provided with a lower tip (5), and the main shaft (6) is provided with a driven gear (4) which is orthogonally meshed with the driving gear (8).

2. The lower center mechanism for a quenching machine tool according to claim 1, characterized in that: the driving mechanism (1) comprises a speed reducing motor and a driving motor, the output end of the driving motor is connected with the input end of the speed reducing motor, and the output end of the speed reducer is connected with the transmission shaft (3).

3. The lower center mechanism for a quenching machine tool according to claim 2, characterized in that: the gear motor is an NMRV worm gear reducer.

4. The lower center mechanism for a quench machining tool according to claim 2, wherein: the driving motor is a three-phase asynchronous motor.

5. A lower tip mechanism for a quench machining tool according to claim 2 or 3, characterized in that: be equipped with on transmission shaft (3) and keep off ring (10), the cover is equipped with spring (7) on transmission shaft (3), spring (7) are located and keep off between ring (10) and driving gear (8).

6. The lower center mechanism for a quenching machine tool according to claim 1, characterized in that: the main shaft (6) is provided with a counter bore (601) matched with the lower tip (5), the lower tip (5) is provided with a first connecting ring (15), the main shaft (6) is provided with a second connecting ring (14), and the first connecting ring (15) and the second connecting ring (14) are connected through a screw (16).

7. The lower center mechanism for a quenching machine tool according to claim 6, wherein: the outer circumference of the second connecting ring (14) is in threaded connection with a blocking cover (13).

8. The lower center mechanism for a quenching machine tool according to claim 6 or 7, characterized in that: the driving gear (8) and the driven gear (4) are both orthogonal gears.

9. The lower center mechanism for a quenching machine tool according to claim 8, wherein: the driving gear (8) is connected with the transmission shaft (3) through a first key (11).

10. The lower center mechanism for a quenching machine tool according to claim 8, wherein: the driven gear (4) is connected with the main shaft (6) through a second key (12).