Auxiliary device for replacing universal shaft of horizontal rolling mill

Abstract

The utility model relates to an auxiliary device for replacing a universal shaft of a horizontal rolling mill, which comprises at least two supporting arms. The connecting plug-in is fixedly arranged on the side, close to a speed reducer, of the universal shaft of the horizontal rolling mill, and the supporting arm is connected in an inserted mode through the connecting plug-in; the limiting sliding seat is connected with the supporting arm in a sliding mode, and a channel allowing the limiting sliding seat to slide up and down is formed in the supporting arm in a penetrating mode; and the supporting cross rod is placed on the limiting sliding seat so as to bear and support the universal shaft of the horizontal rolling mill. By means of the supporting arm, the connecting inserting piece, the limiting sliding base and the supporting cross rod, the supporting device is used for supporting the universal shaft of the horizontal rolling mill, supporting adjustment can be conducted according to the height of the universal shaft of the horizontal rolling mill, the device is simple in structure and high in stability, the universal shaft of the horizontal rolling mill is convenient to disassemble and assemble, labor cost and time cost are saved, and production safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical auxiliary equipment, in particular to an auxiliary device for replacing a universal shaft of a horizontal rolling mill. Background Technique

[0002] The cross-shaft universal coupling is one of the most commonly used couplings. By using the characteristics of its structure, two shafts that are not on the same axis or have a large angular deflection or large axial movement can rotate at a constant angular velocity continuously, and can reliably transmit torque and motion. It can be widely used in the mechanical shaft systems of industries such as lifting, engineering transportation, mining, petroleum, ships, coal, rubber, paper-making machinery and other heavy machinery industries to transmit torque.

[0003] When replacing the universal shaft of the horizontal rolling mill, due to the structure of the cross joint, when the splined shaft component on the rolling mill side is removed outward, the splined sleeve component will tilt downward under the action of gravity, and it is impossible to align the splines when replacing the universal shaft at the rolling mill end. If the large and small hooks of the overhead crane are used for lifting at the same time, there will be skewed pulling and slanting lifting, which is extremely unsafe.

[0004] In the prior art, generally, angle steels are welded on the universal shaft near the reducer side for support, but the support angle steels have to be cut off after each replacement, which not only wastes materials, but also wastes time for disassembly and installation. Content of the Utility Model

[0005] The purpose of the utility model is to provide an auxiliary device for replacing the universal shaft of a horizontal rolling mill, which makes the installation and disassembly of the universal shaft of the horizontal rolling mill convenient through the auxiliary device, and improves work efficiency and production safety.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model provides an auxiliary device for replacing a universal shaft of a horizontal rolling mill, including:

[0008] Support arms, at least two support arms are provided;

[0009] Connection plugs, the connection plugs are fixedly arranged on the side of the universal shaft of the horizontal rolling mill near the reducer, and the support arms are inserted into the connection plugs;

[0010] Limit sliding seats, the limit sliding seats are slidably connected with the support arms, and a channel for the limit sliding seats to slide up and down is penetrated on the support arms;

[0011] Support cross bars, the support cross bars are placed on the limit sliding seats to support and carry the universal shaft of the horizontal rolling mill.

[0012] Furthermore, the inner diameter of the connection plug is adapted to the diameter of the support arm.

[0013] Further, the bottom end of the support arm is open, and the outer diameter of the connection plug is adapted to the inner diameter of the opening of the support arm.

[0014] Further, the shape of the connection plug is consistent with the shape of the end face of the support arm.

[0015] Further, the limit sliding seat includes a support portion and a sliding portion.

[0016] The support portion is used to carry and support the support cross bar.

[0017] The sliding portion is used to slide the limit sliding seat on the channel.

[0018] Further, a limit bolt is connected to one end of the sliding portion away from the support cross bar. The sliding portion is connected to the rod portion of the limit bolt, and the head of the limit bolt is located outside the channel.

[0019] Further, the diameter of the head of the limit bolt is larger than the cross-sectional diameter of the channel.

[0020] Due to the application of the above technical solution, the present utility model has the following advantages compared with the prior art:

[0021] An auxiliary device for replacing a universal shaft of a horizontal rolling mill according to the present utility model uses a support arm, a connection plug, a limit sliding seat and a support cross bar to support the universal shaft of the horizontal rolling mill, and can adjust the support according to the height of the universal shaft of the horizontal rolling mill. The device has a simple structure and high stability, is convenient for the disassembly and installation of the universal shaft of the horizontal rolling mill, saves labor costs and time costs, and improves production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Some specific embodiments of the present utility model will be described in detail hereinafter with reference to the accompanying drawings in an exemplary and non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0023] Figure 1 is a schematic structural diagram (one) of an auxiliary device for replacing a universal shaft of a horizontal rolling mill provided by the present utility model;

[0024] Figure 2 is a schematic structural diagram (two) of an auxiliary device for replacing a universal shaft of a horizontal rolling mill provided by the present utility model;

[0025] Figure 3 is a schematic structural diagram (three) of an auxiliary device for replacing a universal shaft of a horizontal rolling mill provided by the present utility model;

[0026] Figure 4It is a schematic diagram of the actual operation of an auxiliary device for replacing the universal shaft of a horizontal rolling mill provided by the present utility model;

[0027] Among them, the reference numerals are explained as follows:

[0028] 1. Support arm; 2. Connecting plug-in; 3. Limit sliding seat; 301. Support part; 302. Sliding part; 4. Channel; 5. Support cross bar; 6. Limit bolt; 7. Universal shaft of horizontal rolling mill. Specific embodiments

[0029] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0030] Refer to Figures 1 to 4 , the auxiliary device for replacing the universal shaft of a horizontal rolling mill in the present utility model includes a support arm 1, a connecting plug-in 2, a limit sliding seat 3, a channel 4, and a support cross bar 5.

[0031] Specifically, in the embodiment of the present utility model, at least two of the foregoing support arms 1 are provided to provide a more stable supporting force for the universal shaft 7 of the horizontal rolling mill. Of course, when specifically arranging, the number of support arms 1 can also be reasonably arranged according to actual needs or according to the weight and size of the universal shaft 7 of the horizontal rolling mill. The number of support arms 1 can be set to 2, 3, 4, or other numbers.

[0032] In the embodiment of the present utility model, a connecting plug-in 2 is provided on the side of the universal shaft 7 of the horizontal rolling mill near the speed reducer. The connecting plug-in 2 is detachably inserted into the foregoing support arm 1 to provide a supporting fulcrum for the support arm 1. Specifically, in the embodiment of the present utility model, the foregoing connecting plug-in 2 is welded to the ground on the side of the universal shaft 7 of the horizontal rolling mill near the speed reducer or on a table that can provide a stable supporting effect, thereby providing a stable fulcrum for the support arm 1. Of course, it is not limited to fixing the connecting plug-in 2 by welding, and other fixing methods can also be used to fix the connecting plug-in 2, as long as it can play a role in stabilizing the connecting plug-in 2 itself and at the same time provide a stable supporting effect for the support arm 1.

[0033] In view of the detachable plug-in connection between the above-mentioned connection plug-in 2 and the support arm 1, in the embodiment of the utility model, a variety of plug-in methods are provided. Specifically, the inner diameter of the connection plug-in 2 is set to be compatible with the diameter of the support arm 1, so that the support arm 1 can be plugged into the connection plug-in 2; or the bottom of the support arm 1 is opened, and the outer diameter of the connection plug-in 2 is set to be compatible with the inner diameter of the bottom opening of the support arm 1, so that the support arm 1 is sleeved on the connection plug-in 2. In the embodiment of the utility model, the connection plug-in 2 is set to have a height of at least 40 cm, and no matter which method is used for plugging, it can provide a stable support effect. Of course, in order to avoid the instability generated during the support process as much as possible, a hole can be penetrated through the bottom end of the connection plug-in 2 and the support arm 1, and a limiter can be set to fix it. After the connection plug-in 2 and the support arm 1 are plugged, the stability of the support is improved by abutting the limiter against the through hole of the connection plug-in 2 and the support arm 1.

[0034] In the embodiment of the utility model, the shape of the connecting plug 2 is consistent with the shape of the end face of the support arm 1. Therefore, when the end face of the connecting plug 2 is set to be circular, the support arm 1 is set to be cylindrical; when the end face of the connecting plug 2 is set to be square, the support arm 1 is set to be cuboid, ensuring that the connecting plug 2 and the support arm 1 can be adapted. Of course, the shapes of the connecting plug 2 and the support arm 1 are not limited to the above ones, and can be adjusted according to actual needs.

[0035] Regarding the aforementioned limit slide 3, the limit slide 3 is slidably arranged on the support arm 1, and at least one groove 4 is provided on the support arm 1 for it to slide up and down. The limit slide 3 slides up and down on the groove 4, thereby being able to adjust the height of the limit slide 3 on the groove 4 to adapt to the disassembly and replacement of the universal shaft 7 of the horizontal rolling mill at different heights. In addition, the number of grooves 4 can be reasonably arranged according to actual needs or the number of universal shafts 7 of the horizontal rolling mill, and 1, 2, 3 or other numbers of grooves 4 can be provided.

[0036] In addition, in the embodiment of the utility model, the above-mentioned limiting slide 3 includes a supporting portion 301 and a sliding portion 302, the supporting portion 301 is used to carry and support the above-mentioned supporting cross bar 5, and the sliding portion 302 is used to make the limiting slide 3 slide on the groove 4.

[0037] In the embodiment of the present utility model, the contour of the supporting part 301 is adapted to the outer contour of the supporting cross bar 5, so as to prevent the supporting cross bar 5 from generating position offset or shaking within the supporting part 301, thereby affecting the supporting stability of the universal shaft 7 of the horizontal rolling mill. Specifically, in the embodiment of the present utility model, the supporting cross bar 5 is arranged in a cuboid shape, and the corresponding supporting part 301 fits the outer contour of the cuboid-shaped supporting cross bar 5. The supporting cross bar 5 is not arranged in a cylindrical shape to prevent inertial sliding or offset when the cylindrical structure supports the universal shaft 7 of the horizontal rolling mill, which may affect the operation effect and production safety.

[0038] Regarding how the aforementioned limiting sliding seat 3 is limited, in the embodiment of the present utility model, a limiting bolt 6 is connected to one end of the sliding part 302 of the limiting sliding seat 3 away from the supporting part 301, that is, away from the supporting cross bar 5. Specifically, the sliding part 302 is connected to the rod part of the limiting bolt 6, and the rod part of the limiting bolt 6 is arranged through the channel 4, while the head of the limiting bolt 6 is arranged outside the channel 4. Moreover, the diameter of the head of the limiting bolt 6 is larger than the cross-sectional diameter of the channel 4. By abutting the head of the limiting bolt 6 against the outer periphery of the channel 4, the fixed limitation of the limiting sliding seat 3 is realized. Of course, it is not limited to the above limiting method, and other methods can also be adopted as long as stable limiting operation can be achieved.

[0039] To sum up, for the auxiliary device for replacing the universal shaft of the horizontal rolling mill disclosed in the present utility model, the materials used for manufacturing can utilize scrap steel, and the cost is extremely low. The structure is simple but extremely flexible and practical. The number of intermediate channels of the supporting arm and the length of the supporting cross bar can be set according to specific situations. The connecting plug-in can be welded to both sides of the equipment according to the actual situation. When replacing the universal shaft of the horizontal rolling mill later, the supporting arm can be directly inserted. It is very safe when used for operating and replacing the equipment, greatly improving the replacement efficiency and operation efficiency.

[0040] The above embodiments are only used to illustrate the technical concept and characteristics of the present utility model, and their purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it accordingly. It cannot be used to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit essence of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. An auxiliary device for replacing the universal shaft of a horizontal rolling mill, characterized in that, Comprising: Support arms (1), with at least two support arms (1) provided; Connection plug-ins (2), the connection plug-ins (2) being fixedly arranged on the side of the universal shaft (7) of the horizontal rolling mill near the speed reducer, and the connection plug-ins (2) being for the support arms (1) to be inserted; Limit sliding seats (3), the limit sliding seats (3) being slidably connected to the support arms (1), and a channel (4) for the limit sliding seats (3) to slide up and down being provided through the support arms (1); Support crossbars (5), the support crossbars (5) being placed on the limit sliding seats (3) to support and carry the universal shaft (7) of the horizontal rolling mill.

2. The auxiliary device for replacing the universal shaft of a horizontal rolling mill according to claim 1, wherein The inner diameter of the connection plug-in (2) is adapted to the diameter of the support arm (1).

3. The auxiliary device for replacing the universal shaft of a horizontal rolling mill according to claim 1, wherein, The bottom end of the support arm (1) is open, and the outer diameter of the connection plug-in (2) is adapted to the inner diameter of the opening of the support arm (1).

4. The auxiliary device for replacing the universal shaft of a horizontal rolling mill according to claim 1, wherein, The shape of the connection plug-in (2) is the same as the shape of the end face of the support arm (1).

5. A universal joint replacement auxiliary device for a horizontal rolling mill according to claim 1, characterized in that, The limit sliding seat (3) includes a support portion (301) and a sliding portion (302), The support portion (301) is used to support and carry the support crossbar (5); The sliding portion (302) is used to make the limit sliding seat (3) slide on the channel (4).

6. The auxiliary device for replacing the universal shaft of a horizontal rolling mill according to claim 5, characterized in that, One end of the sliding portion (302) away from the support crossbar (5) is connected to a limit bolt (6), the sliding portion (302) is connected to the rod portion of the limit bolt (6), and the head of the limit bolt (6) is located outside the channel (4).

7. A universal shaft replacement auxiliary device for a horizontal rolling mill according to claim 6, characterized in that, The diameter of the head of the limit bolt (6) is greater than the cross-sectional diameter of the channel (4).

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