Symmetrical modularized rolling mill transmission case

Abstract

The utility model belongs to the technical field of metallurgical equipment, and relates to a symmetrical modularized rolling mill transmission case which comprises a case body, an inlet rack transmission system and an outlet rack transmission system, the inlet rack transmission system and the outlet rack transmission system are installed in the case body, and each of the inlet rack transmission system and the outlet rack transmission system comprises an input shaft system, a conical shaft and a short shaft which are in transmission connection in sequence. The input shaft system comprises a horizontally arranged shaft, the shaft is provided with a bevel gear used for being in transmission connection with a conical shaft, and the two ends of the shaft are each provided with a shaft head used for installing a coupler gear sleeve. The shaft heads used for being connected with the coupling gear sleeves are arranged at the two ends of the input shaft system, so that the two ends of the input shaft system can be connected with the coupling to achieve driving, the same rack transmission system can adapt to installation of a left line and a right line at the same time, higher universality is achieved, meanwhile, the equipment structure is more simplified, and cost is reduced. Unification of left and right line models is realized, and the models of spare parts of the rolling mill are effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical equipment and relates to a symmetrical modular rolling mill transmission box. Background Art

[0002] The high-speed area of ​​the high-speed wire rod production line has high rolling speed and large rolling load. At present, modular rolling mills are generally used to roll the rolled products at high speed, so as to improve the rolling line output and obtain wire rod products that meet the size requirements and mechanical properties. For a currently disclosed modular wire rod rolling mill, the speed ratio relationship between the two rolling mills of a single module is usually fixed, that is, the elongation coefficient between the two rolling mills is fixed and cannot be flexibly adjusted, which affects the dimensional accuracy of the rolled product. In addition, the elongation coefficient required for the rolling of wire rods of different steel grades is also different, and a single fixed speed ratio rolling mill cannot meet the rolling process requirements of multiple varieties of wire rods.

[0003] In addition, more importantly, the existing modular rolling mills are divided into left-line units and right-line units in terms of mechanical structure. The left and right-line units are mirror images of each other, the rolling mills cannot be interchanged, and the equipment versatility is low, resulting in a large demand for spare parts in the production process and high equipment operation and maintenance costs. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a symmetrical modular rolling mill transmission box to realize independent transmission of the unit and interchangeability of the left and right line rolling mill transmission boxes, thereby simplifying the equipment structure, effectively improving the versatility of the equipment, and reducing the types of rolling mills and the number of spare parts.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] A symmetrical modular rolling mill transmission box comprises a box body and an entrance frame transmission system and an exit frame transmission system installed in the box body, wherein the entrance frame transmission system and the exit frame transmission system both comprise an input shaft system, a tapered shaft and a short shaft which are sequentially connected in transmission, the input shaft system comprises a horizontally arranged shaft, a bevel gear for transmission connection with the tapered shaft is arranged on the shaft, and shaft heads for mounting coupling gear sleeves are arranged at both ends of the shaft.

[0007] Furthermore, the inlet rack transmission system and the outlet rack transmission system are arranged in parallel in the box body, and form a spatial structure with a top intersection of 45 degrees.

[0008] Furthermore, the box body is a split structure, and consists of an upper box body and a lower box body.

[0009] Furthermore, the axis is horizontally arranged in the lower box body, and the tapered axis is arranged in parallel with the short axis and arranged in the upper box body along a spatial orientation inclined at 45°.

[0010] Furthermore, the bevel shaft is provided with a bevel gear and a helical gear, the short shaft is provided with a helical gear, the bevel gear on the bevel shaft is meshed with the bevel gear in the input shaft system, and the helical gear on the bevel shaft is meshed with the helical gear on the short shaft.

[0011] Furthermore, the conical shaft is also sleeved with a support bearing fixedly connected to the upper housing, and the bevel gear and the helical gear on the conical shaft are respectively arranged on both sides of the support bearing, and the bevel gear on the conical shaft is a cantilever structure.

[0012] Furthermore, oil return pipes are symmetrically arranged on both sides of the bottom of the box body.

[0013] Furthermore, two diagonally arranged positioning pins are provided on the bottom plate of the box.

[0014] Furthermore, the box body includes two independent boxes, namely a first box body and a second box body, and the inlet rack transmission system and the outlet rack transmission system are respectively installed in the two independent boxes, and the inlet rack transmission system and the outlet rack transmission system are arranged in parallel and form a spatial structure with a top intersection of 45°.

[0015] Furthermore, a protective cover installed on the box body is provided at one end of the shaft.

[0016] The beneficial effects of the utility model are:

[0017] The utility model provides a symmetrical modular rolling mill transmission box, in which the inlet frame transmission system and the outlet frame transmission system have the same structure, and the two ends of the input shaft system in the frame transmission system are symmetrical structures, and are both arranged with shaft heads for connecting the coupling gear sleeves, so that they can both be connected to the coupling to achieve drive, so that the same frame transmission system can adapt to the installation of the left line and the right line at the same time, thereby having higher versatility, and at the same time the equipment structure is simpler and the layout is more compact, realizing the unification of the left and right line models, and effectively reducing the number of rolling mill spare parts models.

[0018] Secondly, the two frame transmission systems at the inlet and outlet of the symmetrical modular rolling mill transmission box are both independent drive types, which can adapt to the requirements of different elongation coefficients for rolling different wire products, and have higher production flexibility.

[0019] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0021] Figure 1 It is a front view of a symmetrical modular rolling mill transmission box in the utility model;

[0022] Figure 2 It is a cross-sectional view of the inlet rack transmission system of the utility model;

[0023] Figure 3 It is a cross-sectional view of the transmission system of the export rack in the utility model;

[0024] Figure 4 Installation diagram of the left line of the transmission box

[0025] Figure 5 Installation diagram of the right line of the transmission box

[0026] Figure 6 Front view of the split structure of the transmission box

[0027] Figure 7 It is a cross-sectional view of the split structure of the transmission case.

[0028] Figure markings: housing 1, upper housing 1-1, lower housing 1-2, inlet rack transmission system 2, first input shaft system 2-1, first shaft 2-11, first shaft head 2-11a, first bevel gear 2-12, first sleeve 2-13, first gear sleeve 2-14, first baffle 2-15, second sleeve 2-16, third sleeve 2-17, second baffle 2-18, first bevel shaft 2-2, second bevel gear 2-21, first helical gear 2-22, first support bearing 2-23, first short shaft 2-3, second helical gear 2-31, export frame transmission system 3, second input shaft system 3-1, second shaft 3-11, second shaft head 3-11a, third bevel gear 3-12, fourth sleeve 3-13, second gear sleeve 3-14, third baffle 3-15, fifth sleeve 3-16, sixth sleeve 3-17, fourth baffle 3-18, second bevel shaft 3-2, fourth bevel gear 3-21, third helical gear 3-22, second support bearing 3-23, second short shaft 3-3, fourth helical gear 3-31, guard 4, locating pin 5, oil return pipe 6. DETAILED DESCRIPTION

[0029] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0030] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0031] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] See also Figure 1 to Figure 7 , which is a symmetrical modular rolling mill transmission box, including a box body 1, an inlet frame transmission system 2, an outlet frame transmission system 3, a shield 4, a positioning pin 5 and an oil return pipe 6.

[0033] In this embodiment, the inlet rack transmission system 2 and the outlet rack transmission system 3 are arranged in parallel in the same box 1, and form a spatial structure with a top angle of 45°, and the inlet rack transmission system 2 and the outlet rack transmission system 3 each include a horizontally arranged input shaft system and a tapered shaft and a short shaft arranged at an angle of 45°, and the input shaft system, the tapered shaft and the short shaft are sequentially connected in transmission, the input shaft system includes a horizontally arranged shaft, a bevel gear for transmission connection with the tapered shaft is provided on the shaft, and shaft heads for mounting a coupling gear sleeve are provided at both ends of the shaft, a bevel gear for connecting the shaft is provided at one end of the tapered shaft, and the tapered shaft and the short shaft are provided with mutually meshing helical gears;

[0034] The box body 1 is a split structure, consisting of an upper box body 1-1 and a lower box body 1-2.

[0035] The inlet frame transmission system 2 includes a horizontally arranged first input shaft system 2-1, a first tapered shaft 2-2 and a first short shaft 2-3 arranged at an angle of 45 degrees, and the first input shaft system 2-1, the first tapered shaft 2-2 and the first short shaft 2-3 are sequentially connected in transmission.

[0036] Specifically, the first input shaft system 2-1 of the entrance frame transmission system 2 is horizontally arranged in the box body 1, and the first shaft 2-11 in the first input shaft system 2-1 is provided with a first bevel gear 2-12, and the first shaft sleeve 2-13 and the second shaft sleeve 2-16, as well as the first coupling gear sleeve 2-14 and the third shaft sleeve 2-17 are respectively provided at both ends of the first shaft 2-11, and the first baffle 2-15 and the second baffle 2-18 are provided at the two side ends of the first shaft 2-11.

[0037] The first bevel shaft 2-2 of the entrance frame transmission system 2 is arranged in parallel with the first short shaft 2-3, and is arranged in the upper box body 1-1 along a spatial orientation inclined at 45°, wherein the first bevel shaft 2-2 is provided with a second bevel gear 2-21 and a first bevel gear 2-22, and the first short shaft 2-3 is provided with a second bevel gear 2-31, the second bevel gear 2-21 is meshed with the first bevel gear 2-12 on the first input shaft system 2-1, and the first bevel gear 2-22 is meshed with the second bevel gear 2-31 on the first short shaft 2-3.

[0038] Preferably, the second bevel gear 2-21 and the first bevel gear 2-22 on the first bevel shaft 2-2 of the inlet rack transmission system 2 are arranged on both sides of the first support bearing 2-23, wherein the second bevel gear 2-21 is a cantilever structure.

[0039] Specifically, the first support bearing 2-23 is sleeved on the first tapered shaft 2-2 and fixedly connected to the upper box body 1-1, so as to install the first tapered shaft 2-2 in the upper box body 1-1.

[0040] Furthermore, the outlet rack transmission system 3 includes a second input shaft system 3-1 arranged horizontally, a second tapered shaft 3-2 arranged at an angle of 45 degrees, and a second short shaft 3-3.

[0041] Specifically, the second input shaft system 3-1 of the export frame transmission system 3 is horizontally arranged in the box body 1, and the third bevel gear 3-12 is arranged on the second shaft 3-11 in the input shaft system 3-1, and the fourth shaft sleeve 3-13 and the fifth shaft sleeve 3-16, as well as the second coupling gear sleeve 3-14 and the sixth shaft sleeve 3-17 are respectively arranged at both ends of the second shaft 3-11, and the third baffle 3-15 and the fourth baffle 3-18 are arranged at the two side ends of the second shaft 3-11.

[0042] Preferably, the second bevel shaft 3-2 of the export frame transmission system 3 is arranged in parallel with the second short shaft 3-3, and is arranged in the upper box body 1-1 in a spatial orientation inclined at 45°, wherein the second bevel shaft 3-2 is provided with a fourth bevel gear 3-21 and a third bevel gear 3-22, and the second short shaft 3-3 is provided with a fourth bevel gear 3-31, the fourth bevel gear 3-21 is meshed with the third bevel gear 3-12 on the input shaft system 3-1, and the third bevel gear 3-22 is meshed with the fourth bevel gear 3-31 on the second short shaft 3-3.

[0043] Furthermore, the fourth bevel gear 3-21 and the third bevel gear 3-22 on the second bevel shaft 3-2 of the inlet rack transmission system 3 are arranged on both sides of the support bearing 3-23, wherein the fourth bevel gear 3-21 is a cantilever structure.

[0044] The present invention will be further described below in conjunction with the accompanying drawings, but the present embodiment is not limited thereto.

[0045] Example 1

[0046] A symmetrical modular rolling mill transmission box comprises a box body 1, an inlet frame transmission system 2, an outlet frame transmission system 3, a shield 4, a positioning pin 5 and an oil return pipe 6.

[0047] The inlet rack transmission system 2 and the outlet rack transmission system 3 are arranged in parallel in the same box 1, forming a spatial arrangement structure with a top angle of 45 degrees. The box 1 is an upper and lower split structure, consisting of an upper box 1-1 and a lower box 1-2.

[0048] Specifically, the entrance frame transmission system 2 includes a horizontally arranged first input shaft system 2-1, a first bevel shaft 2-2 arranged at an angle of 45°, and a first short shaft 2-3; the first input shaft system 2-1 of the entrance frame transmission system 2 is horizontally arranged in the box body 1, and the first input shaft system 2-1 includes a horizontally arranged first shaft 2-11, and the first shaft 2-11 is provided with a first bevel gear 2-12 for power transmission; the shaft ends on both sides of the first shaft 2-11 are of symmetrical structure, and both sides are provided with a first shaft head 2-11a on which the first gear sleeve 2-14 of the coupling can be installed.

[0049] During operation, the first gear sleeve 2-14 of the coupling is installed at one end of the first shaft 2-11, and is fixed to the first shaft 2-11 through the first sleeve 2-13 and the first baffle 2-15, and the third sleeve 2-17 is installed at the other end to replace the first gear sleeve 2-14 of the coupling, and is fixed to the first shaft 2-11 through the second sleeve 2-16 and the second baffle 2-18, thereby driving the first shaft 2-11 to rotate through the coupling.

[0050] Preferably, when the first gear sleeve 2-14 of the coupling is not installed at one end of the first shaft 2-11, the shaft end will be in an exposed state, and there will be safety risks when the equipment is working. At this time, the shaft end will be protected by a shield 4 installed on the box body 1.

[0051] Preferably, the first bevel shaft 2-2 of the entrance frame transmission system 2 is arranged in parallel with the first short shaft 2-3, and is arranged in the upper box body 1-1 in a spatial orientation inclined at 45°, wherein the second bevel gear 2-21 on the first bevel shaft 2-2 is meshed with the first bevel gear 2-12 on the first input shaft system 2-1, and the bevel gear 2-22 on the first bevel shaft 2-2 is meshed with the bevel gear 2-31 on the first short shaft 2-3 to realize power transmission.

[0052] Further, the second bevel gear 2-21 and the first bevel gear 2-22 on the first bevel shaft 2-2 are arranged on both sides of the first support bearing 2-23, so that the second bevel gear 2-21 forms a cantilever structure.

[0053] Specifically, the export rack transmission system 3 includes a horizontally arranged input shaft system 3-1, a second tapered shaft 3-2 arranged at an angle of 45 degrees, and a second short shaft 3-3.

[0054] Furthermore, the second input shaft system 3-1 of the export rack transmission system 3 is horizontally arranged in the housing 1, and the second input shaft system 3-1 includes a horizontally arranged second shaft 3-11, and a third bevel gear 3-12 is provided on the second shaft 3-11 for power transmission.

[0055] Furthermore, the shaft ends on both sides of the second shaft 3-11 are of symmetrical structure, and both sides are provided with second shaft heads 3-11a on which the second gear sleeve 3-14 of the coupling can be installed.

[0056] During operation, the second gear sleeve 3-14 of the coupling is installed at one end of the second shaft 3-11, and is fixed to the second shaft 3-11 through the fourth sleeve 3-13 and the third baffle 3-15, and the sixth sleeve 3-17 is installed at the other end to replace the second gear sleeve 3-14 of the coupling, and is fixed to the second shaft 3-11 through the fifth sleeve 3-16 and the fourth baffle 3-18.

[0057] Preferably, when the second gear sleeve 3-14 of the coupling is not installed at one end of the second shaft 3-11, the shaft end will be in an exposed state, and there will be safety risks when the equipment is working. At this time, the shaft end is protected by the shield 4 installed on the box body 1.

[0058] Preferably, the second bevel shaft 3-2 of the export frame transmission system 3 is arranged in parallel with the second short shaft 3-3, and is arranged in the upper box body 1-1 in a spatial orientation inclined at 45°, wherein the fourth bevel gear 3-21 on the second bevel shaft 3-2 is meshed with the third bevel gear 3-12 on the second input shaft system 3-1, and the third bevel gear 3-22 on the second bevel shaft 3-2 is meshed with the fourth bevel gear 3-31 on the second short shaft 3-3 to realize power transmission.

[0059] Further, the fourth bevel gear 3-21 and the third bevel gear 3-22 on the second bevel shaft 3-2 are arranged on both sides of the second support bearing 3-23, wherein the fourth bevel gear 3-21 is a cantilever structure.

[0060] Furthermore, two diagonally arranged positioning pins 5 are provided on the bottom plate of the box body 1 for positioning the device after installation, so as to facilitate rapid resetting and installation after the device is removed.

[0061] Furthermore, oil return pipes 6 are symmetrically arranged on both sides of the lower box body of the box body 1 for connecting the oil return pipes when the equipment is installed.

[0062] In another embodiment, the box 1 can also be split into two independent boxes 1A (first box) and box 1B (second box), and the inlet rack transmission system 2 and the outlet rack transmission system 3 are respectively arranged in the boxes 1A and 1B, and are arranged in a 45° vertical space.

[0063] In this embodiment, each independent transmission box bottom plate is provided with two positioning pins 5 for quick resetting and installation after removal.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A symmetrical modular rolling mill transmission box, comprising a box body and an inlet frame transmission system and an outlet frame transmission system installed in the box body, characterized in that: The inlet rack transmission system and the outlet rack transmission system both include an input shaft system, a tapered shaft and a short shaft that are sequentially connected in transmission. The input shaft system includes a horizontally arranged shaft, on which a bevel gear for transmission connection with the tapered shaft is provided, and both ends of the shaft are provided with shaft heads for mounting a coupling gear sleeve.

2. The symmetrical modular rolling mill transmission box according to claim 1, characterized in that: The inlet rack transmission system and the outlet rack transmission system are arranged in parallel in the box body, and form a spatial structure with a top angle of 45 degrees.

3. The symmetrical modular rolling mill transmission box according to claim 2, characterized in that: The box body is a split structure, and consists of an upper box body and a lower box body.

4. The symmetrical modular rolling mill transmission box according to claim 3, characterized in that: The axis is horizontally arranged in the lower box body, and the tapered axis is arranged in parallel with the short axis and arranged in the upper box body along a spatial orientation inclined at 45°.

5. The symmetrical modular rolling mill transmission box according to claim 4, characterized in that: The bevel shaft is provided with a bevel gear and a helical gear, the short shaft is provided with a helical gear, the bevel gear on the bevel shaft is meshed with the bevel gear in the input shaft system, and the helical gear on the bevel shaft is meshed with the helical gear on the short shaft.

6. The symmetrical modular rolling mill transmission box according to claim 5, characterized in that: The conical shaft is also sleeved with a support bearing fixedly connected to the upper box body, and the bevel gear and the helical gear on the conical shaft are respectively arranged on both sides of the support bearing, and the bevel gear on the conical shaft is a cantilever structure.

7. The symmetrical modular rolling mill transmission box according to claim 1, characterized in that: Oil return pipes are symmetrically arranged on both sides of the bottom of the box body.

8. The symmetrical modular rolling mill transmission box according to claim 1, characterized in that: The bottom plate of the box body is provided with two diagonally arranged positioning pins.

9. The symmetrical modular rolling mill transmission box according to claim 1, characterized in that: The box body includes two independent boxes, namely a first box body and a second box body. The inlet rack transmission system and the outlet rack transmission system are respectively installed in the two independent boxes, and the inlet rack transmission system and the outlet rack transmission system are arranged in parallel to form a spatial structure with a top intersection of 45 degrees.

10. The symmetrical modular rolling mill transmission box according to any one of claims 1 to 9, characterized in that: A protective cover installed on the box body is provided at one end of the shaft.

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