阅读说明：本技术 单轴传动轧辊可拆式三辊轧机 (Single-shaft transmission roller detachable three-roller mill ) 是由 董兴亮 冯春安 杨维清 何文祥 邓兵 唐菠 魏稼丰 于 2020-07-07 设计创作，主要内容包括：本发明涉及棒材轧机技术领域,提供一种单轴传动轧辊可拆式三辊轧机,包括机架和在机架上互成60°设置的三组轴组件,所述的机架为剖分式结构,三组轴组件包括一组输入长轴组件和两组传动短轴组件,所述的传动短轴组件与输入长轴组件连接传动。本发明通过采用剖分式机架,采用长短轴组件配合组成了传动结构简单可靠的三辊轧机,通过这种更为精简的结构大大减少了投入成本；在进行设备维护时,可通过快速拆解的方式快速将轧辊拆除,保持了轧辊拆卸安装的精确度,不影响再次安装使用。(The invention relates to the technical field of bar mills, and provides a three-roller mill with detachable single-shaft transmission rollers, which comprises a rack and three groups of shaft assemblies which are arranged on the rack in an angle of 60 degrees, wherein the rack is in a split structure, the three groups of shaft assemblies comprise a group of input long shaft assemblies and two groups of transmission short shaft assemblies, and the transmission short shaft assemblies are connected with the input long shaft assemblies for transmission. The three-roller mill has the advantages that the split type frame is adopted, the long and short shaft assemblies are matched to form the three-roller mill with a simple and reliable transmission structure, and the investment cost is greatly reduced through the more simplified structure; when carrying out equipment maintenance, the accessible is disassembled the mode fast and is demolishd the roll fast, has kept the precision that the roll was dismantled and is installed, does not influence and install once more and use.)

1. The detachable three-roller mill with single-shaft transmission rollers comprises a frame (1) and three groups of shaft assemblies which are arranged on the frame (1) in an angle of 60 degrees, and is characterized in that: the machine frame (1) is of a split structure, three sets of shaft assemblies comprise a set of input long shaft assembly and two sets of transmission short shaft assemblies (3), and the transmission short shaft assemblies (3) are connected with the input long shaft assembly for transmission.

2. The single-shaft drive roll removable three-high rolling mill according to claim 1, characterized in that: the input long shaft assembly comprises a long tension pull rod (15), a roller (4) is arranged on the long tension pull rod (15), and the roller (4) is fixed on the long tension pull rod (15) through a clamping flange A (14) and a clamping flange B (13) and rotates along with a shaft; the clamping flange A (14) and the clamping flange B (13) are respectively provided with a bevel gear sleeve (5).

3. The single-shaft drive roll removable three-high rolling mill according to claim 2, characterized in that: clamping flange A (14) and clamping flange B (13) on all rotate the cover and be equipped with mounting flange A (12), mounting flange A's (12) anterior and clamping flange A (14) and clamping flange B (13) form seal structure, mounting flange A's (12) rear portion and bevel gear cover (5) rotate relatively, the tooth portion of bevel gear cover (5) is followed the rear portion of mounting flange A (12) and is visited out.

4. The single-shaft drive roll removable three-high rolling mill according to claim 3, characterized in that: and a bearing is arranged between the fixed flange A (12) and the bevel gear sleeve (5).

5. The single-shaft drive roll detachable three-high mill according to claim 2 or 3, characterized in that: the transmission short shaft assembly (3) comprises a short tension pull rod (31), a roller (4) is arranged on the short tension pull rod (31), and the roller (4) is fixed on the short tension pull rod (31) through a clamping flange C (26) and a clamping flange D (25) and rotates along with the shaft; the clamping flange D (25) is provided with a bevel gear sleeve (5) and is meshed with the bevel gear sleeve (5) of the clamping flange A (14) or the clamping flange B (13).

6. The single-shaft drive roll removable three-high rolling mill according to claim 5, characterized in that: press from both sides tight flange D (25) on rotate the cover and be equipped with mounting flange B (32), mounting flange B's (32) anterior and press from both sides tight flange D (25) and form seal structure, mounting flange B's (32) rear portion and bevel gear cover (5) relative rotation, the tooth portion of bevel gear cover (5) is followed mounting flange D's rear portion and is visited out.

7. The single-shaft drive roll removable three-high rolling mill according to claim 5, characterized in that: the clamping flange C (26) is rotatably sleeved with a fixed flange C (27), and the front part of the fixed flange C (27) and the clamping flange C (26) form a sealing structure.

8. The single-shaft drive roll removable three-high rolling mill according to claim 5, characterized in that: an adjusting flange A (19) and a sealing element (20) are sleeved on the clamping flange A (14), the sealing element (20) is positioned on the outer side of the adjusting flange A (19), the adjusting flange A (19) and the clamping flange A (14) rotate relatively, and the sealing element (20) rotates synchronously with the clamping flange A (14); an adjusting flange B (28) and a sealing element (20) are sleeved on the clamping flange C (26), the sealing element (20) is located on the outer side of the adjusting flange B (28), the adjusting flange B (28) and the clamping flange C (26) rotate relatively, and the sealing element (20) rotates synchronously with the clamping flange C (26).

9. The single-shaft drive roll removable three-high mill according to claim 8, characterized in that: the end part of the long tension pull rod (15) is provided with a driving taper sleeve (23), the driving taper sleeve (23) is sleeved on the clamping flange A (14) and synchronously rotates along with the clamping flange A (14), and a locking part A is further arranged on the long tension pull rod (15) to lock the driving taper sleeve (23) and the clamping flange A (14).

10. The single-shaft drive roll removable three-high mill according to claim 8, characterized in that: the end part of the short tension pull rod (31) is provided with a fixed taper sleeve (29), the fixed taper sleeve (29) is sleeved on the clamping flange C (26) and rotates coaxially with the clamping flange C (26), and a locking part B is further arranged on the short tension pull rod (31) to lock the fixed taper sleeve (29) and the clamping flange C (26).

Technical Field

The invention relates to the technical field of bar mills, in particular to a three-roller bar wire mill, and particularly relates to a three-roller mill with detachable single-shaft transmission rollers.

Background

The rod three-roller mill commonly used in the industry at present comprises a three-shaft driving type and a single-shaft driving type, wherein the three-shaft driving type three-roller mill realizes rolling through three-shaft synchronous rotation, and the single-shaft driving type three-roller mill realizes rolling of rods through driving of two shafts in addition through an input shaft.

When the three-shaft driving type rolling mill rolls, the stress of a rolled piece at three angles is balanced, the rolling force of the roller is large, each shaft of the single three-shaft driving type rolling mill is required to be provided with an independent power system or a plurality of groups of change gear boxes are adopted to change the driving direction, the transmission chain of the whole driving module is complex, and the system manufacturing cost is high. When equipment is installed and maintained, the three-shaft driving type roller is mostly assembled and disassembled in a pressing mode, and the roller can be conveniently and quickly disassembled, repaired and installed.

The single-shaft transmission type rolling mill has a simple transmission system, the roller in the rolling mill is fixedly installed, the roller cannot be quickly disassembled under the condition that a rack body is not disassembled, the roller hole pattern is easily abraded in actual rolling, and the purpose of reducing and sizing cannot be achieved due to overlarge abrasion loss; needs to be repaired and reused after being used for a period of time. When metals with high strength and poor shaping, such as tungsten, molybdenum, titanium and the like, are rolled, a single-shaft driving type rolling mill is adopted, the wear loss of a hole pattern is large, the replacement frequency of the roller is high, the inside of the whole rack needs to be opened to realize the disassembly and repair of the roller, after the rack is disassembled, all parts are difficult to be re-assembled to the correct position, and when the rack is reused after being disassembled, the unreliable rolling process is often caused due to the installation problem, so the time and the capital cost of equipment maintenance are high. If the mode of not dismantling equipment is adopted for maintenance, the roll collar is kept on the rack for grinding and repairing, so that a better repairing effect can be achieved on the roll collar for machining the flat triangular hole pattern, and the roll collar for machining the arc triangular hole pattern and the roll collar for machining the tangent hole pattern are difficult to achieve a better repairing effect.

Therefore, the existing bar three-roller rolling mill equipment still has the improvement part, needs to be improved and optimized to obtain a more reasonable technical scheme, and solves the defects in the prior art.

Disclosure of Invention

In order to overcome the defects of the prior art mentioned in the content, the invention provides a three-roller mill with detachable single-shaft transmission rollers, aiming at improving a single-shaft driving type rolling mill, facilitating the disassembly and assembly for maintaining equipment, achieving the purposes of quickly maintaining the equipment, accurately installing parts and ensuring the processing precision.

In order to achieve the purpose, the invention specifically adopts the technical scheme that:

the detachable three-roller mill with single-shaft transmission rollers comprises a rack and three sets of shaft assemblies which are arranged on the rack in an angle of 60 degrees, wherein the rack is of a split structure, the three sets of shaft assemblies comprise a set of input long shaft assemblies and two sets of transmission short shaft assemblies, and the transmission short shaft assemblies are connected with the input long shaft assemblies for transmission.

According to the three-roller rolling mill, the frame is of a split structure, so that the inner shaft assembly can be conveniently disassembled and maintained after being opened, the efficiency of assembling and disassembling the equipment is improved, and the maintenance cost is reduced; meanwhile, the two groups of transmission short shaft assemblies are directly transmitted through the input long shaft assembly, so that the structure of the transmission assembly is greatly simplified.

Further, the input long shaft assembly transmits the driving force to the other two short shaft assemblies by connecting an external driving device, and the structure of the input long shaft assembly is described here, and the following possible schemes are given: the input long shaft assembly comprises a long tension pull rod, a roller is arranged on the long tension pull rod, and the roller is fixed on the long tension pull rod through a clamping flange A and a clamping flange B and rotates along with a shaft; the clamping flange A and the clamping flange B are respectively provided with a bevel gear sleeve.

Furthermore, the input long shaft assembly is described in the above, the clamping flange a and the clamping flange B are both rotatably sleeved with the fixed flange a, the front part of the fixed flange a, the clamping flange a and the clamping flange B form a sealing structure, the rear part of the fixed flange a rotates relative to the bevel gear sleeve, and the tooth part of the bevel gear sleeve extends out of the rear part of the fixed flange a.

Furthermore, the number of the fixed flanges A is two, a rotating space is provided for the clamping flange A and the clamping flange B after the fixed flanges A are oppositely arranged on the rack, the fixed flanges A are fixedly connected with the rack, a cylindrical rotating space is formed inside the fixed flanges A, and in order to enable the relative rotation between the clamping flange A, the clamping flange B and the fixed flanges A to be smoother, the fixed flanges A are provided with bearings which can adopt cylindrical roller bearings, the inner rings of the cylindrical roller bearings are sleeved on the clamping flange A and the clamping flange B, and the outer rings of the cylindrical roller bearings are arranged in the rotating space of the fixed flanges A; similarly, the bevel gear sleeve sleeved on the clamping flange A and the clamping flange B also rotates relative to the fixed flange A, a bearing is arranged between the fixed flange A and the bevel gear sleeve, and a tapered roller bearing can be adopted, so that the axial force generated on the bevel gear sleeve is offset.

Furthermore, the power of the transmission short shaft assembly is from the driving long shaft assembly, the structure of the transmission short shaft assembly can adopt various schemes, and the following specific schemes are optimized and proposed here: the transmission short shaft assembly comprises a short tension pull rod, a roller is arranged on the short tension pull rod, and the roller is fixed on the short tension pull rod through a clamping flange C and a clamping flange D and rotates along with a shaft; the clamping flange D is provided with a bevel gear sleeve and is meshed with the bevel gear sleeve of the clamping flange A or the clamping flange B.

Still further, similar to the driving long shaft assembly, the driving short shaft assembly also needs to provide a rotation space externally when rotating, and the optimization is performed according to the composition structure of the driving short shaft assembly, and the following specific feasible schemes are provided: the clamping flange D on rotate the cover and be equipped with mounting flange B, mounting flange B's front portion and clamping flange D form seal structure, mounting flange B's rear portion and bevel gear cover rotate relatively, the tooth portion of bevel gear cover stretches out from mounting flange D's rear portion.

And further, a clamping flange C on the transmission short shaft assembly also rotates relative to the rack, specifically, a fixing flange C is sleeved on the clamping flange C in a rotating mode, and the front part of the fixing flange C and the clamping flange C form a sealing structure.

The fixed flange C and the fixed flange B are oppositely arranged to be a clamping flange C and a clamping flange D to provide a rotating space, so that the roller on the short tension pull rod can keep the axial positioning and rotate along with the shaft.

The fixing flange B and the fixing flange C are connected and fixed on the rack, a rotating space is formed inside the fixing flange B and the fixing flange C, and cylindrical roller bearings are arranged on the clamping flange C and the clamping flange D in order to enable the clamping flange C and the clamping flange D to rotate more smoothly; and in order to make the bevel gear sleeve rotate more smoothly, a tapered roller bearing is arranged between the bevel gear sleeve and the fixed flange B, and the tapered roller bearing can help offset the axial force caused by the bevel gear sleeve.

Furthermore, an adjusting flange A and a sealing element are sleeved on the clamping flange A, the sealing element is positioned on the outer side of the adjusting flange A, the adjusting flange A and the clamping flange A rotate relatively, and the sealing element rotates synchronously with the clamping flange A; the clamping flange C is sleeved with an adjusting flange B and a sealing element, the sealing element is located on the outer side of the adjusting flange B, the adjusting flange B and the clamping flange C rotate relatively, and the sealing element rotates synchronously along with the clamping flange C.

The adjusting flange A and the adjusting flange B are in contact and fixedly arranged on the rack, bearings are sleeved in the adjusting flange A and the adjusting flange B, and the sealing element is positioned on the outer side of the bearing and is used for providing a sealing environment for the bearing and keeping the working stability of the bearing; the inboard of bearing is provided with the nut and supports the piece, and when the quantity of bearing was greater than one, still need set up parts such as bush or spacer and carry out the interval between the adjacent bearing and support tightly.

Furthermore, the rear end part of the long tension pull rod is provided with a driving taper sleeve, the driving taper sleeve is sleeved on the clamping flange A and synchronously rotates along with the clamping flange A, and a locking part A is further arranged on the long tension pull rod to lock the driving taper sleeve and the clamping flange A.

The driving taper sleeve is provided with an oil hole, high-pressure hydraulic oil can be injected into a rotating space formed by the clamping flange A and the clamping flange B through the oil hole, a center hole of the roller is expanded, the long tension pull rod is conveniently pulled out, and therefore the roller is rapidly disassembled.

And furthermore, a fixed taper sleeve is arranged at the end part of the short tension pull rod, the fixed taper sleeve is sleeved on the clamping flange C and rotates coaxially with the clamping flange C, and a locking piece B is further arranged on the short tension pull rod to lock the fixed taper sleeve and the clamping flange C.

Similarly, the fixed taper sleeve is also provided with an oil hole, high-pressure hydraulic oil can be injected into a rotating space formed by the oil hole in the clamping flange C and the clamping flange D, so that a center hole of the roller is expanded, the short tension pull rod can be conveniently pulled out, and the roller can be rapidly disassembled.

Due to the fact that the driving taper sleeve and the fixing taper sleeve are arranged, the roller can be rapidly disassembled in a mode of injecting high-pressure hydraulic oil under the condition that the rack is not disassembled, and the roller is quite convenient to use.

Compared with the prior art, the invention has the beneficial effects that:

the three-roller mill has the advantages that the split type frame is adopted, the long and short shaft assemblies are matched to form the three-roller mill with a simple and reliable transmission structure, and the investment cost is greatly reduced through the more simplified structure; when carrying out equipment maintenance, the accessible is disassembled the mode fast and is demolishd the roll fast, has kept the precision that the roll was dismantled and is installed, does not influence and install once more and use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic sectional view of a three-high rolling mill;

FIG. 2 is a schematic cross-sectional view of a drive shaft assembly;

FIG. 3 is a cross-sectional structural schematic view of the drive stub shaft assembly.

In the above drawings, the meanings of the respective symbols are: 1. a frame; 2. driving the long shaft assembly; 3. a drive stub shaft assembly; 4. rolling; 5. a bevel gear sleeve; 6. an outer nut A; 7. a tapered roller bearing; 8. a spacer sleeve; 9. a round nut B; 10. a round nut A; 11. a cylindrical roller bearing; 12. a fixed flange A; 13. clamping the flange B; 14. clamping the flange A; 15. a long tension pull rod; 16. an outer nut B; 17. a bushing; 18. a ball bearing; 19. adjusting the flange A; 20. a seal member; 21. an adjusting screw; 22. a round nut C; 23. driving the taper sleeve; 24. locking the nut A; 25. clamping the flange D; 26. clamping the flange C; 27. a fixed flange C; 28. adjusting the flange B; 29. fixing a taper sleeve; 30. locking the nut B; 31. a short tension pull rod; 32. and fixing the flange B.

Detailed Description

The invention is further explained below with reference to the drawings and the specific embodiments.

It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.