CN216027091U

CN216027091U - Rotary precision rolling mill

Info

Publication number: CN216027091U
Application number: CN202122442309.4U
Authority: CN
Inventors: 李文奇; 李季恒; 王红伟
Original assignee: Jin Di Gongyi City Metallurgical Equipment Ltd
Current assignee: Jin Di Gongyi City Metallurgical Equipment Ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-03-15
Anticipated expiration: 2031-10-11

Abstract

The utility model discloses a rotary precision rolling mill, which comprises a rotary roller structure and a fixed roller structure, wherein the rotary roller structure comprises a rotary roller and a fixed roller; the rotary roller mechanism comprises an upper frame, a rotating mechanism, a pressing mechanism, an elastic return mechanism and an upper roller; the fixed roller structure comprises a lower frame and a fixed roller; the upper frame is provided with a rotating part which is connected with a rotating mechanism, and the rotating mechanism is arranged on the lower frame; the pressing mechanism is connected with the lower frame and corresponds to the upper frame and provides rotating power for the upper frame; the elastic return mechanism is connected with the upper frame and drives the upper frame to reset; the fixed roller is rotatably arranged on the lower rack, and a rolling space is formed between the upper roller and the fixed roller. The rotary roller structure rotates under the driving of the pressing mechanism, so that the upper roller is close to and far away from the fixed roller, the rotary roller structure is realized in a rotating mode, the rotating power adopts at least two kinematic pairs to make up the defect of reverse clearance, and the reverse clearances of adjacent kinematic pairs are opposite, so that accurate adjustment can be realized.

Description

Rotary precision rolling mill

Technical Field

The utility model belongs to the technical field of precision rolling, and particularly relates to a rotary precision rolling mill.

Background

The precision rolling mill can roll wires, sections and plates with high requirements on size precision, the rolling of two rollers for rolled pieces is generally realized by adopting a complex structure of the housing slide block in the rolling mill, the matching tolerance, the flatness and the parallelism of the housing slide block are controlled to be difficult, the manufacture is complex, and a reverse gap exists between a power structure of the housing slide block in two ascending and descending processes.

SUMMERY OF THE UTILITY MODEL

In view of the deficiencies described in the prior art, the present invention provides a rotary precision rolling mill.

The technical scheme adopted by the utility model is as follows:

a rotary precision rolling mill comprises a rotary roller structure and a fixed roller structure; the rotary roller mechanism comprises an upper frame, a rotating mechanism, a pressing mechanism, an elastic restoring mechanism and an upper roller; the fixed roller structure comprises a lower rack and a fixed roller; the upper roller is rotatably arranged on the upper frame, the upper frame is provided with a rotating part, the rotating part is connected with a rotating mechanism, and the rotating mechanism is arranged on the lower frame; the pressing mechanism is connected with the lower frame and corresponds to the upper frame and provides rotating power for the upper frame; the elastic return mechanism is connected with the upper frame and drives the upper frame to reset; the fixed roller is rotatably arranged on the lower rack, and a rolling space is formed between the upper roller and the fixed roller.

As a preferable scheme of the present invention, the rotating mechanism includes a fixed support member and a rotating connecting member; the fixed support piece is installed on the lower rack, the rotating part is connected with the fixed support piece through the rotating connecting piece, and the rotating part rotates relative to the fixed support piece under the action of the rotating connecting piece.

In a preferred embodiment of the present invention, the rotational connection is a bearing, preferably a self-lubricating bearing or a sliding bearing.

As a preferable scheme of the present invention, the fixed support is provided with a fixed connection portion, the rotating portion is mounted on the fixed connection portion, the rotating connection member is mounted between the rotating portion and the fixed connection portion, and a gap is reserved between the rotating connection member and the fixed connection portion. The gap is a rotating gap, so that the rotating part rotates relative to the fixed connecting part, and when the rotating connecting part uses the self-lubricating bearing, lubricating oil does not need to be added into the gap.

As a preferable scheme of the utility model, the fixed connecting part is provided with an oil filling channel, and the oil filling channel is communicated with the gap. In the case of bearings requiring lubrication, such as sliding bearings, lubricating oil is injected into the gap in order to facilitate lubrication.

As a preferable aspect of the present invention, the fixed connection portion is provided with a play-preventing stopper for preventing the rotation portion from moving.

As a preferable aspect of the present invention, the fixing connection portion is provided with an anti-rotation structure.

As a preferred scheme of the present invention, the rotating portion is provided with a rotating branch portion, the rotating branch portion is connected with a fixed support member, the fixed support member is mounted on the lower frame, the rotating connecting member is mounted between the rotating branch portion and the fixed support member, and a gap is reserved between the rotating connecting member and the rotating branch portion. The gap serves as a rotational gap. The rotation branch portion serves as a structure connected with the fixed support member and rotates integrally with the rotation portion.

As a preferable scheme of the utility model, the rotating branch part is provided with an oil filling channel, and the oil filling channel is communicated with the gap. Through the oiling passageway to pouring into lubricating oil in the clearance, this kind of structure is applicable to the slide bearing class bearing that needs injected lubricating oil, when adopting self-lubricating bearing, then need not set up the oiling passageway.

As a preferable aspect of the present invention, a play-preventing stopper for preventing the play of the rotating portion is attached to the fixed support.

As a preferred scheme of the utility model, the pressing mechanism comprises a jacking pressing shaft, the jacking pressing shaft is provided with at least two kinematic pairs, the reverse gaps of the adjacent kinematic pairs are opposite, the jacking pressing shaft is provided with a jacking head, and the jacking head corresponds to the upper frame; each kinematic pair comprises a first component I and a second component II, the first component I is mounted on the jacking pressing shaft, the second component II and the first component I are matched to limit the first component I to move linearly, and the second component II is connected with the lower rack through a pressing base plate.

As a preferable scheme of the present invention, the first component member I includes an external thread portion, the external thread portion is disposed on an outer circumferential wall of the jacking lower pressing shaft, the second component member II includes a threaded sleeve, an internal thread portion is disposed in the threaded sleeve, the threaded sleeve is disposed on the jacking lower pressing shaft and connected to the lower pressing base plate, and the internal thread portion is screwed with the external thread portion; and the reverse clearance of the screwing of the external thread part and the internal thread part of the adjacent thread pair is opposite.

As a preferred scheme of the utility model, the threaded sleeve is fixedly arranged, the jacking lower pressing shaft is provided with a force application operating head, and the force application operating head is operated to realize forward rotation and reverse rotation of the jacking lower pressing shaft.

As a preferable scheme of the present invention, the threaded sleeve is detachably and fixedly provided with an internal threaded portion, and the threaded sleeve is detachable and convenient to assemble.

In a preferred embodiment of the present invention, the internal thread portion is a threaded ring provided with an internal thread, and the threaded ring is mounted on an inner wall of the threaded sleeve and is defined in the threaded sleeve by a stopper.

As a preferred scheme of the utility model, a locking piece is arranged on the jacking lower pressing shaft; the jacking pressing shaft is locked to prevent disorder, and when the positive rotation or the negative rotation is required, the locking piece is loosened.

As a preferable aspect of the present invention, the elastic restoring mechanism includes a restoring spring, one end of the restoring spring is connected to the upper frame, and the other end of the restoring spring is fixed.

As a preferable scheme of the present invention, the elastic restoring mechanism further includes a restoring base, a spring fixing member is installed in the restoring base, and the spring fixing member extends out of the restoring base and is connected to one end of the restoring spring away from the upper frame.

As a preferable scheme of the present invention, the return base is mounted with a spring adjusting assembly, and the spring adjusting assembly is connected with the spring fixing member and changes a position of the spring fixing member in the return base.

The spring adjusting assembly comprises a spring adjusting block and an adjusting bolt, the spring adjusting block is installed in an adjusting cavity of the return base, and the adjusting bolt is in abutting contact with the spring adjusting block; the spring fixing piece is connected with the spring adjusting block. A plurality of position holes can be formed in the spring adjusting block, and the spring fixing piece is detachably connected with the position holes.

As a preferable aspect of the present invention, an elastic contact piece is provided on the return base, and an elastic contact of the elastic contact piece is in contact with the upper frame. The elastic contact piece can correct the frame and prevent the ascending and descending processes from deflecting.

The rotary roller structure of the utility model can rotate under the driving of the pressing mechanism, so that the upper roller is close to and far away from the fixed roller, the rotary roller structure is realized by adopting a rotating mode, a bearing is adopted as a rotary connecting piece, a fixed supporting piece or a rotating part is provided with a shaft, the shaft is matched with the bearing, the structure is greatly simplified, the weight is light, the processing is easy, the matching gap between the shaft and the bearing is controllable, the size can be within 0.03mm, the roundness tolerance between the shaft and a corresponding hole is easy to control, the continuity and the smoothness are good, the rotating power source adopts at least two kinematic pairs to make up the defect of a reverse gap, the reverse gaps of adjacent kinematic pairs are opposite, when the pressing shaft is lifted up to move in the forward direction, the kinematic pair with one reverse gap works, when the pressing shaft moves in the reverse direction, the kinematic pair with the other reverse gap works, and the influence of the reverse gap does not exist in both the forward direction and the reverse direction, accurate adjustment can be realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an assembly view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a sectional view taken along line a-a of fig. 2.

FIG. 4 is a schematic structural view of the present invention without a pressing mechanism.

Fig. 5 is an assembled sectional view of the upper frame and the rotating mechanism of the present invention.

Fig. 6 is a partially enlarged view of a portion a in fig. 5.

Fig. 7 is a schematic structural diagram of the pressing mechanism of the present invention.

Fig. 8 is a cross-sectional view of the hold-down mechanism of the present invention.

Fig. 9 is a schematic structural diagram of the elastic restoring mechanism of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

Example 1:

a rotary precision rolling mill, as shown in fig. 1-3, comprising a rotating roll structure and a stationary roll structure; the rotary roller mechanism comprises an upper frame 2, a rotating mechanism, a pressing mechanism, an elastic restoring mechanism and an upper roller 3; the fixed roller structure comprises a lower frame 4 and a fixed roller 5.

The upper roller 3 is rotatably arranged on the upper frame 2, the upper frame 2 is provided with two rotating parts 21, the rotating parts 21 are connected with a rotating mechanism, and the rotating mechanism is arranged on the lower frame 4; the pressing mechanism is connected with the lower frame 4, corresponds to the upper frame 2 and provides rotating power for the upper frame 2; the elastic return mechanism is connected with the upper frame 2 and drives the upper frame 2 to reset; the fixed roller 5 is rotatably installed on the lower frame 4, and a rolling space is formed between the upper roller 3 and the fixed roller 5.

Specifically, as shown in fig. 4-6, the rotating mechanism, including the fixed support 6 and the rotating link 7; the fixed support member 6 is mounted on the lower frame 4, the rotating portion 21 is connected with the fixed support member 6 through the rotating connecting member 7, and the rotating portion 21 rotates relative to the fixed support member 6 under the action of the rotating connecting member 7.

In this embodiment, the rotational connection is a bearing, preferably a self-lubricating bearing or a sliding bearing.

And the fixed support 6 is provided with a fixed connecting part 61, the rotating part 21 is arranged on the fixed connecting part 61, the rotating connecting part 7 is arranged between the rotating part 21 and the fixed connecting part 61, and a gap is reserved between the rotating connecting part 7 and the fixed connecting part 61. This gap is a rotational gap which only serves as a rotational gap when the rotational connection 7 employs a self-lubricating bearing, and also serves as a lubrication chamber when the rotational connection employs a sliding bearing.

When the sliding bearings need to be lubricated, the fixed connection portion 61 is provided with an oil injection passage for injecting lubricating oil into the gap, and the oil injection passage is communicated with the gap.

The fixed support 6 comprises a fixed shaft and a support 62, and a protective cover 64 is arranged on the support 62.

The stationary shaft is used as a stationary connecting portion 61 and supported by a support 62, and as shown in fig. 5, the rotating portion 21 is provided with a shaft hole through which the stationary shaft is disposed, a sliding bearing is disposed between the stationary shaft and the shaft hole with a gap therebetween, and an oil filling passage 63 is disposed on the stationary shaft, the oil filling passage 63 is communicated with the gap, and an oil filling plug is installed at an opening of the oil filling passage, and lubricating oil is filled into the gap through the oil filling passage.

In order to prevent the upper frame from moving, as shown in fig. 5 and 6, the fixed connection portion 61 is provided with a movement-preventing stopper 8 for preventing the movement of the rotating portion 21.

The anti-moving limiting part 8 comprises an anti-moving baffle 81, an anti-moving rotating part 82 and an anti-moving locking part 83, and the anti-moving rotating part adopts a one-way thrust ball bearing; the anti-moving baffle 81 is sleeved on the fixed shaft, the anti-moving rotating piece 82 is sleeved on the sliding bearing, the rotating part of the anti-moving rotating piece 82 rotates together with the sliding bearing, the fixed part of the anti-moving rotating piece 82 is contacted with the anti-moving baffle 81, and the anti-moving baffle 81 is fixedly connected with the support 62 through the anti-moving locking piece 83.

Specifically, the anti-moving lock member includes a locking bolt, which passes through the seat of the fixed support member 6 and abuts against the anti-moving baffle 81, and the locking bolt is threadedly coupled with the seat 62.

In order to prevent the fixed shaft from rotating, an anti-rotation structure is arranged on the fixed shaft, and the anti-rotation structure comprises an anti-rotation block 20, wherein the anti-rotation block 20 is used for fixedly connecting the fixed shaft and the support 62 and preventing the fixed connecting part from rotating.

The pressing mechanism, as shown in fig. 7-8, includes a jacking pressing shaft 9, the jacking pressing shaft 9 is provided with at least two kinematic pairs, and the reverse gaps of the adjacent kinematic pairs are opposite, in this embodiment, a threaded kinematic pair is adopted, and of course, under the condition that the adjacent reverse gaps are opposite, other kinematic pairs can also realize the function.

The jacking lower pressing shaft 9 is provided with a jacking head 91 and a force application operating head 92, and the jacking head 91 corresponds to the upper frame 2; each kinematic pair comprises a first component member I10 and a second component member II11, wherein the first component member I10 is mounted on the jacking lower pressing shaft 9, the second component member II11 and the first component member I10 cooperate to limit the linear movement of the first component member I10, and the second component member II11 is connected with the lower frame 4 through a lower pressing base plate. The first component part I and the second component part II always have reverse clearances for own reasons, and in order to avoid the interference of the reverse clearances, the reverse clearances of the first component part I and the second component part II of the adjacent kinematic pairs are opposite.

Specifically, the first component I10 includes an external thread portion 101, the external thread portion 101 is disposed on the outer circumferential wall of the jacking pressing shaft 9, the second component II11 includes a threaded sleeve 111, an internal thread portion 112 is disposed in the threaded sleeve 111, the threaded sleeve 111 is sleeved on the jacking pressing shaft 9 and is connected with the pressing base plate, and the internal thread portion 112 is screwed with the external thread portion 101; and the reverse clearance of the screwing of the external thread part and the internal thread part of the adjacent thread pair is opposite.

The threaded sleeve 111 can be fixedly arranged or detachably arranged. When the detachable arrangement is adopted, the internal thread portion 112 is detachably and fixedly arranged in the thread bushing 111, the internal thread portion 112 is a thread ring provided with internal threads, and the thread ring is arranged on the inner wall of the thread bushing 111 and is limited in the thread bushing 111 by a limiting piece.

After the position is adjusted, in order to prevent the jacking lower pressing shaft from being disordered, a locking piece 13 is arranged on the jacking lower pressing shaft 9; the jacking pressing shaft is locked to prevent disorder, and when the positive rotation or the negative rotation is required, the locking piece is loosened.

The elastic restoring mechanism, as shown in fig. 9, includes a restoring spring 14 and a restoring base 15, one end of the restoring spring 14 is connected to the upper frame 2, the other end of the restoring spring 14 is connected to an end of the spring fixing member 16 extending out of the restoring base 15, and the spring fixing member 16 is connected to the spring adjusting assembly.

The spring adjusting assembly comprises a spring adjusting block 17 and an adjusting bolt 18, the spring adjusting block 17 is installed in an adjusting cavity of the return base 15, and the adjusting bolt 18 is in abutting contact with the spring adjusting block 17; the spring mount 16 is connected to a spring adjustment block 17. A plurality of position holes can be formed in the spring adjusting block, and the spring fixing piece is detachably connected with the position holes.

In order to prevent the frame from deflecting during ascending and descending, an elastic contact piece 19 is arranged on the return base 15, and an elastic contact of the elastic contact piece 19 is contacted with the upper frame 2. The elastic contact piece can correct the frame and prevent the ascending and descending processes from deflecting.

After the upper frame 2 is jacked up by the pressing mechanism, the rotating part of the upper frame rotates relative to the fixed shaft under the action of the bearing, so that an upper roller arranged on the upper frame is close to the fixed roller, the upper roller is not adjusted after the position of the upper frame is adjusted, a spring of the spring return mechanism is tensioned, when the upper frame needs to be reset, the pressing mechanism is reversely adjusted, and the upper frame returns to the original position under the action of the return spring. And repeating the adjusting process when the adjustment is needed.

Example 2:

the utility model provides a rotary type precision rolling mill, the portion of rotating is equipped with rotates a portion, rotates a portion and is connected with fixed support piece, and fixed support piece installs in the lower frame, rotates a portion and be the axle construction, rotates the connecting piece and installs between rotation portion and fixed support piece, rotates the connecting piece and rotates and reserve the clearance between the portion. The rotation branch portion serves as a structure connected with the fixed support member and rotates integrally with the rotation portion.

The rotating connecting piece can adopt a self-lubricating bearing or a sliding bearing, when the sliding bearing is adopted, an oil filling channel is arranged at the rotating branch part, the oil filling channel is communicated with the gap, and lubricating oil is filled into the gap through the oil filling channel.

The anti-channeling limiting part for preventing the rotating part from channeling is mounted on the fixed supporting part, the structure of the anti-channeling limiting part is the same as that in embodiment 1, the anti-channeling baffle is sleeved on the rotating support part and is not in contact with the rotating support part, the anti-channeling rotating part is sleeved on the rotating support part, the rotating part of the anti-channeling rotating part rotates together with the rotating support part, the fixed part of the anti-channeling rotating part is in contact with the anti-channeling baffle, the anti-channeling baffle is fixedly connected with the fixed supporting part through the anti-channeling locking piece, and the rest is the same as that in embodiment 1.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A rotary precision rolling mill is characterized in that: comprises a rotary roller structure and a fixed roller structure; the rotary roller mechanism comprises an upper frame (2), a rotating mechanism, a pressing mechanism, an elastic recovery mechanism and an upper roller (3); the fixed roller structure comprises a lower rack (4) and a fixed roller (5); the upper roller (3) is rotatably arranged on the upper frame (2), the upper frame (2) is provided with a rotating part (21), the rotating part (21) is connected with a rotating mechanism, and the rotating mechanism is arranged on the lower frame (4); the pressing mechanism is connected with the lower rack (4), corresponds to the upper rack (2) and provides rotating power for the upper rack (2); the elastic return mechanism is connected with the upper frame (2) and drives the upper frame (2) to reset; the fixed roller (5) is rotatably arranged on the lower frame (4), and a rolling space is formed between the upper roller (3) and the fixed roller (5).

2. A rotary precision rolling mill according to claim 1, wherein: the rotating mechanism comprises a fixed support piece (6) and a rotating connecting piece (7); the fixed support piece (6) is arranged on the lower rack (4), the rotating part (21) is connected with the fixed support piece (6) through the rotating connecting piece (7), and the rotating part (21) rotates relative to the fixed support piece (6) under the action of the rotating connecting piece (7).

3. A rotary precision rolling mill according to claim 2, wherein: fixed support piece (6) are equipped with fixed connection portion (61), rotate portion (21) and install on fixed connection portion (61), rotate connecting piece (7) and install between rotation portion (21) and fixed connection portion (61), and rotate and reserve between connecting piece (7) and fixed connection portion (61) and have the clearance.

4. A rotary precision rolling mill according to claim 2 or 3, wherein: the fixed connecting part (61) is provided with a movement-preventing limiting part (8) for preventing the movement of the rotating part (21) and an anti-rotating structure.

5. A rotary precision rolling mill according to claim 2, wherein: the rotating part (21) is provided with a rotating part, the rotating part is connected with a fixed supporting piece (6), the fixed supporting piece (6) is installed on the lower rack (4), the rotating connecting piece (7) is installed between the rotating part and the fixed supporting piece (6), and a gap is reserved between the rotating connecting piece (7) and the rotating part.

6. A rotary precision rolling mill according to claim 5, wherein: a movement prevention stopper (8) for preventing the movement of the rotating part (21) is mounted on the fixed support (6).

7. A rotary precision rolling mill according to claim 1 or 2, wherein: the downward pressing mechanism comprises a jacking downward pressing shaft (9), the jacking downward pressing shaft (9) is provided with at least two kinematic pairs, the reverse gaps of the adjacent kinematic pairs are opposite, the jacking downward pressing shaft (9) is provided with a jacking head (91), and the jacking head (91) corresponds to the upper frame (2); each kinematic pair comprises a first component I (10) and a second component II (11), the first component I (10) is mounted on the jacking pressing shaft (9), the second component II (11) is matched with the first component I (10) to limit the linear movement of the first component I (10), and the second component II (11) is connected with the lower rack (4) through a pressing base plate.

8. A rotary precision rolling mill according to claim 7, wherein: the first component member I (10) comprises an external thread part (101), the external thread part (101) is arranged on the outer circumferential wall of the jacking lower pressing shaft (9), the second component member II (11) comprises a thread sleeve (111), an internal thread part (112) is arranged in the thread sleeve (111), the thread sleeve (111) is sleeved on the jacking lower pressing shaft (9) and is connected with the lower pressing base plate, and the internal thread part (112) is screwed with the external thread part (101); and the reverse clearance of the screwing of the external thread part and the internal thread part of the adjacent thread pair is opposite.

9. A rotary precision rolling mill according to claim 1, wherein: the elastic restoring mechanism comprises a restoring spring (14), one end of the restoring spring (14) is connected with the upper rack (2), and the other end of the restoring spring (14) is fixed.

10. A rotary precision rolling mill according to claim 9, wherein: the elastic restoring mechanism further comprises a restoring base (15), a spring adjusting assembly and a spring fixing piece (16) are installed on the restoring base (15), the spring adjusting assembly is connected with the spring fixing piece (16) and changes the position of the spring fixing piece in the restoring base, and the spring fixing piece (16) stretches out of the restoring base (15) and then is connected with one end, far away from the upper rack (2), of the restoring spring (14).