CN213997196U

CN213997196U - Miniature two-roller steel belt gear rolling machine

Info

Publication number: CN213997196U
Application number: CN202021885016.2U
Authority: CN
Inventors: 胡省宪; 徐勇; 沈凌峰; 沈春锋
Original assignee: Shanghai Kunyong Energy Saving Technology Co ltd
Current assignee: Shanghai Kunyong Energy Saving Technology Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-08-20
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses a miniature two roller steel band gear rolling machines, relate to steel rolling machinery's technical field, which comprises a frame, install down hold-down mechanism and knurling mechanism in the frame, it includes drive assembly and wedge to hold down the mechanism, knurling mechanism includes roller assembly and lower roll assembly, it includes roller support and knurling roll to go up the roller assembly, go up roller support mounting in the frame and with wedge inclined plane butt, the knurling roll rotates and installs on last roller support, lower roll assembly includes lower roll support, smooth roll and power device, lower roll support mounting is in the one side that the roller support deviates from the wedge of going up, smooth roll is installed on lower roll support and power device is connected with the smooth roll drive, form the knurling space between smooth roll and the knurling roll. For two roller mill of transmission, only utilize lower roll subassembly to use as power input portion, ensure lower roll subassembly intensity and rolling speed, and smooth roll diameter optional range is bigger better more to the bigger embossing roll of adaptation diameter strengthens smooth roll or embossing roll intensity, improves the pushing down force.

Description

Miniature two-roller steel belt gear rolling machine

Technical Field

The utility model relates to a steel rolling machinery's technical field, more specifically says that it relates to a miniature two roller steel band gear rolling machines.

Background

The inner gear pipe has more than 20 years of use history in the air conditioning industry, but the traditional inner gear pipe can only process soft metals such as copper, aluminum and the like. In view of corrosion resistance and strength, copper pipes have been used for air-conditioning heat exchangers, but since copper is now increasingly expensive, there is a trend to replace copper with stainless steel. However, because stainless steel has high hardness and is difficult to machine internal teeth, the traditional copper internal tooth pipe is a seamless copper pipe lined spiral tooth core print, and a roller is used for inwards extruding the external part to print the pattern on the core print on the inner wall of the copper pipe. Stainless steel can only be rolled into teeth on the surface of a steel belt and then rolled into a pipe by using the rolled teeth steel belt.

The traditional gear rolling machine for the steel belt at present has the following defects:

1. the lower pressure is insufficient, and the lower lead screw is easy to be extruded, compressed or bent;

2. the rigidity of the roller is insufficient, the roller or a roller shaft is easy to bend during tooth rolling, so that the axial thickness of the strip rolling roller is not uniform, and the rolled steel strip can be twisted in an S line in serious cases;

3. the rolling tooth die is high in cost, the rolling tooth die is divided into a smooth roll and an embossing roll, the smooth roll is long in service life and does not need to be replaced frequently, and the embossing roll is prone to tooth breakage and scrapping due to the metal fatigue problem.

SUMMERY OF THE UTILITY MODEL

To this problem in the practical application, the utility model aims at providing a miniature two roller steel band rolls tooth machine, concrete scheme is as follows:

the utility model provides a miniature two roller steel band gear rolling machine, includes the frame, install down pressure mechanism and knurling mechanism in the frame, down pressure mechanism includes drive assembly and wedge, the wedge peg graft in the frame, drive assembly with the wedge drive is connected with the drive the wedge removes along self length direction, knurling mechanism includes last roller assembly and lower roll subassembly, it includes roller support and knurling roll to go up the roller assembly, go up the roller support install in the frame and with the inclined plane butt of wedge, the knurling roll rotate install in go up on the roller support, the lower roll subassembly includes lower roll support, smooth roll and power device, the lower roll support install in the lower roll support deviates from one side of wedge, the smooth roll install in go up on the roller support and power device with smooth roll drive connection, and an embossing space is formed between the smooth roll and the embossing roll.

Further preferably, drive assembly includes driving motor, speed reducer, propulsion lead screw, screw-nut, driving motor with the speed reducer drive is connected, the speed reducer with screw-nut connects, screw-nut with impel lead screw threaded connection, impel the lead screw to deviate from screw-nut's one end with the wedge is connected.

Further preferably, go up the roller assembly and still include last roller bearing and go up the roller pivot, go up roller bearing nested install in go up roller pivot both ends, just go up roller bearing fixed mounting in go up on the roller support, the knurling roll nested install in go up roller pivot middle part.

Further preferably, the frame is close to go up roller assembly side and opens and be equipped with the location and lead to the groove, go up fixed mounting on the roller support lateral wall and have the limiting plate, the limiting plate is arranged in the location leads to the groove and deviates from one side of roller assembly so that go up roller assembly overlap joint in the location is led to the inslot.

Preferably, the lower roll assembly further comprises a lower roll bearing and a lower roll rotating shaft, the lower roll bearing is nested at two ends of the lower roll rotating shaft, the lower roll bearing is fixedly mounted on the lower roll support, the smooth roll is nested at the middle part of the lower roll rotating shaft, and one end of the lower roll rotating shaft extends to be in driving connection with the power device to form a power input part.

Further preferably, a transmission block is embedded between the smooth roller and the lower roller rotating shaft.

Further preferably, one side of the upper roller support, which is close to the wedge block, is provided with a hardened layer.

Preferably, the two opposite side walls of the frame are provided with openings for the steel belt to penetrate through, and the openings are communicated with the embossing space.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) compared with a transmission two-roller mill, the upper roller assembly is not used as a power input part any more, the lower roller assembly is used as the power input part, the strength and the rolling speed of the lower roller assembly are ensured, the selectable range of the diameter of the smooth roller is as large as possible, the smooth roller or the embossing roller with larger diameter is adapted, the strength of the smooth roller or the embossing roller is enhanced, and the downward pressure is improved;

(2) compared with the traditional screw rod pressing, the wedge-shaped block has the advantages of large bearing capacity and synchronous left and right feeding during pressing by utilizing the inclined plane of the wedge-shaped block, and meanwhile, the speed reducer, the propelling screw rod and the wedge-shaped block are combined for three times of speed reduction, the speed reduction ratio is large, and the feeding is labor-saving.

Drawings

Fig. 1 is an overall schematic diagram of an embodiment of the present invention;

fig. 2 is an overall schematic view showing a power input portion;

FIG. 3 is a sectional view showing the structure of the driving assembly;

fig. 4 is a structural sectional view showing an upper roller assembly and a lower roller assembly.

Reference numerals: 1. a frame; 2. a pressing mechanism; 21. a drive assembly; 211. a drive motor; 212. a speed reducer; 213. a screw rod is pushed; 214. a feed screw nut; 22. a wedge block; 3. an embossing mechanism; 31. an upper roll assembly; 311. an upper roll support; 312. embossing rollers; 313. an upper roll bearing; 314. an upper roll rotating shaft; 32. a lower roll assembly; 321. a lower roll support; 322. a smoothing roller; 323. a lower roll bearing; 324. a lower roller rotating shaft; 4. an embossing space; 5. positioning the through groove; 6. a limiting plate; 7. a power input section; 8. a transmission block; 9. a hardened layer; 10. and (4) opening.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1 and 2, a miniature two-roller steel strip gear rolling machine comprises a frame 1, wherein a pressing mechanism 2 for increasing pressing pressure and an embossing mechanism 3 for embossing and rolling are arranged on the frame 1.

The pressing mechanism 2 comprises a driving assembly 21 and a wedge block 22, wherein the driving assembly 21 comprises a driving motor 211, a speed reducer 212, a propelling screw rod 213 and a screw rod nut 214. The driving motor 211 is in driving connection with the speed reducer 212, the speed reducer 212 is connected with the lead screw nut 214, the lead screw nut 214 is in threaded connection with the propelling lead screw 213, and one end of the propelling lead screw 213, which is far away from the lead screw nut 214, is connected with the wedge block 22. Wherein, the wedge block 22 is inserted on the frame 1. The wedge block 22 can be driven to move along the length direction by the driving component 21.

As shown in fig. 3 and 4, the embossing mechanism 3 includes an upper roller assembly 31 and a lower roller assembly 32. The upper roller assembly 31 includes an upper roller support 311, an embossing roller 312, an upper roller bearing 313, and an upper roller rotating shaft 314. The upper roller bearings 313 are nested at two ends of the upper roller rotating shaft 314, the embossing rollers 312 are nested at the middle part of the upper roller rotating shaft 314, and the upper roller bearings 313 are fixedly arranged on the upper roller bracket 311 by utilizing shaft seats. Meanwhile, the upper roller support 311 is mounted on the frame 1, and one side of the upper roller support 311 departing from the upper roller bearing 313 abuts against the inclined surface of the wedge block 22. Preferably, the upper roller support 311 is hardened on the side close to the wedge block 22 to form a hardened layer 9, and the hardened layer 9 is used to reinforce the hardness of the upper roller support 311 on the side close to the wedge block 22.

Frame 1 is close to last roller assembly 31 side and opens and is equipped with the logical groove 5 of location, goes up fixed mounting on the roller support 311 lateral wall and has limiting plate 6, and limiting plate 6 is arranged the logical groove 5 of location in and is kept away from one side of roller assembly 31 so that last roller assembly 31 overlap joint in the logical groove 5 of location. When the driving assembly 21 drives the wedge-shaped block 22 to displace, the inclined surface of the wedge-shaped block 22 abuts against the upper roller support 311, so that the whole upper roller assembly 31 can be driven to displace along the height direction by the inclined surface of the wedge-shaped block 22. And, through the setting of stopper and location logical groove 5, carry out spacingly to going up roller assembly 31 displacement, prevent to go up roller assembly 31 skew displacement route. Compared with the traditional screw rod pressing, the inclined plane has the advantages of large bearing capacity and synchronous left and right feeding during pressing, and the speed is reduced for three times through the speed reducer 212, the propelling screw rod 213 and the wedge block 22, so that the speed reduction ratio is large, and the feeding is labor-saving.

Further, the lower roll assembly 32 comprises a lower roll support 321, a smooth roll 322, a lower roll bearing 323, a lower roll rotating shaft 324 and a power device, wherein the lower roll bearing 323 is nested at two ends of the lower roll rotating shaft 324, the smooth roll 322 is nested at the middle part of the lower roll rotating shaft 324, and the lower roll bearing 323 is fixedly mounted on the lower roll support 321 by a shaft seat. One end of the lower roller shaft 324 extends to be connected with a power device to form a power input portion 7, and the power device is used to drive the power input portion 7 (the lower roller shaft 324) to rotate so as to drive the smooth roller 322 to rotate. Preferably, a driving block 8 is embedded between the smooth roller 322 and the lower roller rotating shaft 324, the section of the driving block 8 is square, and the driving block 8 is used for enhancing the connection strength between the smooth roller 322 and the lower roller rotating shaft 324.

In the conventional two-roller rolling mill, the upper roller assembly 31 and the lower roller assembly 32 are both used as the power input part 7, and the advantage is that the force of a single shaft is small. However, as a gear rolling machine, the upper roller and the lower roller have diameter errors which are difficult to calculate, and a certain rotation difference exists during synchronous rotation to generate large resistance. Compared with a transmission two-roller mill, the upper roller assembly 31 is no longer used as the power input part 7, the lower roller assembly 32 is used as the power input part 7, the strength and the rolling speed of the lower roller assembly 32 are ensured, the selectable range of the diameter of the smooth roller 322 is larger, the better the selectable range is, the smooth roller 322 is adapted to the embossing roller 312 with the larger diameter, the strength of the smooth roller 322 or the embossing roller 312 is enhanced, and the downward pressure is improved.

An embossing space 4 is formed between the smooth roll 322 and the embossing roll 312, and openings 10 for the steel strip to pass through are formed on two opposite side walls of the frame 1.

The specific working process of the embodiment is as follows:

the steel band gets into knurling space 4 by frame 1 one side opening 10, goes up roller assembly 31 through drive assembly 21 drive and is close to knurling space 4 and pushes down, rotates through power device drive lower roll subassembly 32, and combines lower roll subassembly 32 turning force and steel band transmission power to rotate in order to drive lower roll subassembly 32, utilizes pivoted knurling roll 312 to carry out the tooth type rolling to the steel band through knurling space 4.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a two miniature roller steel band gear rolling machines, a serial communication port, including frame (1), install down in frame (1) and push down mechanism (2) and knurling mechanism (3), push down mechanism (2) including drive assembly (21) and wedge (22), wedge (22) peg graft in frame (1) is last, drive assembly (21) with wedge (22) drive is connected in order to drive wedge (22) remove along self length direction, knurling mechanism (3) are including last roller assembly (31) and lower roll subassembly (32), it includes last roller support (311) and knurling roll (312) to go up roller support (311) install in frame (1) go up and with the inclined plane butt of wedge (22), knurling roll (312) rotate install in go up roller support (311), lower roll subassembly (32) include lower roll support (321), smooth roller (322) and power device, lower roll support (321) install in go up roll support (311) and deviate from one side of wedge (22), smooth roller (322) install in on lower roll support (321) just power device with smooth roller (322) drive is connected, smooth roller (322) with form knurling space (4) between knurling roll (312).

2. The micro two-roll steel strip gear rolling machine according to claim 1, characterized in that the driving assembly (21) comprises a driving motor (211), a speed reducer (212), a propelling screw rod (213) and a screw nut (214), the driving motor (211) is in driving connection with the speed reducer (212), the speed reducer (212) is connected with the screw nut (214), the screw nut (214) is in threaded connection with the propelling screw rod (213), and one end of the propelling screw rod (213) away from the screw nut (214) is connected with the wedge block (22).

3. The micro two-roller steel belt gear rolling machine according to claim 1, wherein the upper roller assembly (31) further comprises an upper roller bearing (313) and an upper roller rotating shaft (314), the upper roller bearing (313) is installed at two ends of the upper roller rotating shaft (314) in a nested mode, the upper roller bearing (313) is fixedly installed on the upper roller support (311), and the embossing roller (312) is installed in the middle of the upper roller rotating shaft (314) in a nested mode.

4. The miniature two-roller steel belt gear rolling machine according to claim 3, wherein the rack (1) is close to the side of the upper roller assembly (31) and is provided with a positioning through groove (5), a limiting plate (6) is fixedly mounted on the outer side wall of the upper roller support (311), the limiting plate (6) is arranged on one side of the positioning through groove (5) deviating from the upper roller assembly (31) so that the upper roller assembly (31) is lapped in the positioning through groove (5).

5. The micro two-roller steel strip gear rolling machine according to claim 1, wherein the lower roller assembly (32) further comprises a lower roller bearing (323) and a lower roller rotating shaft (324), the lower roller bearing (323) is nested at two ends of the lower roller rotating shaft (324), the lower roller bearing (323) is fixedly mounted on the lower roller bracket (321), the smoothing roller (322) is nested at the middle part of the lower roller rotating shaft (324), and one end of the lower roller rotating shaft (324) extends to be in driving connection with the power device to form a power input part (7).

6. The micro two-roller steel strip gear rolling machine according to claim 5, characterized in that a transmission block (8) is embedded between the smooth roller (322) and the lower roller rotating shaft (324).

7. The micro two-roll steel strip gear rolling machine according to claim 1, characterized in that a hardened layer (9) is arranged on one side of the upper roll support (311) close to the wedge-shaped block (22).

8. The micro two-roller steel strip gear rolling machine according to claim 1, wherein openings (10) for passing steel strips are formed in two opposite side walls of the machine frame (1), and the openings (10) are communicated with the embossing space (4).