Transmission shaft positioning device

Abstract

The utility model relates to the technical field of rolling mill equipment, and particularly discloses a transmission shaft positioning device which comprises a shaft, an upper bracket, a lower bracket, an upper bracket arm, a lower bracket arm, a hydraulic cylinder and a sleeve, and the upper bracket and the lower bracket are arranged on shaft heads at the two ends of the shaft respectively; the upper supporting arm and the lower supporting arm are connected with the two ends of the shaft respectively. A hydraulic cylinder is arranged on the lower portion of the upper supporting arm, and a support of the hydraulic cylinder is fixed to a shaft shoulder of the shaft. The upper end of the upper supporting arm and the upper end of the lower supporting arm are each provided with an arc face, and the sleeve is arranged on the arc faces. The problems that in the prior art, a transmission shaft positioning device is complex in structure, not easy to manufacture, large in occupied space, tedious in operation, poor in reliability and safety, difficult to maintain and high in use cost are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rolling mill equipment, in particular to a transmission shaft positioning device. BACKGROUND

[0002] In the rolling process, when the roughness of the roll surface cannot meet the process requirements due to wear or scratch, etc., the production process needs to be interrupted, the old roll system is pulled out of the frame, the standby roll system is installed, and then normal rolling can be carried out. Before the old roll system is separated from the transmission shaft, the output end of the transmission shaft must be accurately and reliably positioned, so that when the standby roll system is installed, the transmission end of the roll and the output end of the transmission shaft can be quickly connected. Otherwise, if the transmission shaft is not accurately positioned, manual adjustment and positioning are needed between the two. Therefore, it is inevitable to cause the negative results of long auxiliary time, high labor intensity of workers, and occupation of valuable production time.

[0003] For small and medium-sized rolling mills, the previous transmission shaft positioning device includes a clamp and a bracket. When working, the clamp is first centered and clamped to the end of the transmission shaft in the horizontal direction by a hydraulic cylinder or a manual screw rod, and then the bracket is supported in the vertical direction by a hydraulic cylinder or a manual nut. The transmission shaft can be positioned under the coordinated action of the two. Obviously, this positioning device has the problems of complex structure, difficult manufacturing, space occupation, cumbersome operation, poor reliability and safety, difficult maintenance, and high use cost. SUMMARY

[0004] The purpose of the present application is to provide a transmission shaft positioning device to solve the problems of complex structure, difficult manufacturing, space occupation, cumbersome operation, poor reliability and safety, difficult maintenance, and high use cost of the transmission shaft positioning device in the prior art.

[0005] To achieve the above purpose, the embodiments of the present application provide a transmission shaft positioning device, which comprises a shaft, an upper bracket, a lower bracket, an upper supporting arm, a lower supporting arm, a hydraulic cylinder, and a sleeve, wherein,

[0006] The upper bracket and the lower bracket are respectively arranged on the two end shaft heads of the shaft;

[0007] The upper supporting arm and the lower supporting arm are respectively connected to the two ends of the shaft;

[0008] The lower part of the upper supporting arm is provided with a hydraulic cylinder, and the support of the hydraulic cylinder is fixed on the shaft shoulder of the shaft;

[0009] The upper ends of the upper supporting arm and the lower supporting arm are respectively provided with a circular arc surface, and the sleeve is arranged on the circular arc surface.

[0010] Optionally, one end of the upper bracket and the lower bracket is a connecting plate, and the other end is provided with a first connecting hole.

[0011] Optionally, the two ends of the shaft are respectively connected with the first connecting holes of the upper and lower supporting seats through shaft hole matching.

[0012] Optionally, one end of the upper and lower supporting arms is provided with a second connecting hole.

[0013] Optionally, the second connecting holes of the upper and lower supporting arms are respectively connected with the shaft through shaft hole gap matching.

[0014] Optionally, the connection between the upper and lower supporting arms and the shaft is respectively provided with a key, which is inserted into the side wall of the connection between the upper and lower supporting arms and the shaft.

[0015] Optionally, the upper and lower supporting seats are respectively located above and below the upper and lower supporting arms, and are respectively provided with a threaded hole, which is provided with a limiting bolt, and the length direction of the screw rod of the limiting bolt is respectively towards the upper and lower supporting arms.

[0016] Optionally, the limiting bolt is provided with a locking nut.

[0017] Optionally, the connecting plate of the upper and lower supporting seats is respectively fixed on the transmission side frame through a bolt and a pin.

[0018] The embodiments of the present application have the following advantages:

[0019] Compared with the prior art, the transmission shaft positioning device provided by the above technical scheme has the advantages of simple structure, easy manufacturing, small size, simple operation, high reliability and safety, convenient maintenance, and low use cost. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical schemes in the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without creating any creative labor.

[0021] Figure 1 A front view assembly drawing of a transmission shaft positioning device provided by at least one embodiment of the present application;

[0022] Figure 2 A B-B sectional view in Figure 1

[0023] Figure 3 A top view of a transmission shaft positioning device provided by at least one embodiment of the present application.

[0024] ​Reference numerals:

[0025] 1-sleeve, 2-upper support arm, 3-upper support seat, 4-key, 5-hydraulic cylinder, 6-shaft, 7-lower support arm, 8-limit bolt, 9-lower support seat. DETAILED DESCRIPTION

[0026] The advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the specification. Obviously, the described embodiments are part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise specified and limited, the terms "set", "mount", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0029] The embodiment of the present application provides a kind of transmission shaft positioning device, reference Figures 1 to 3 , comprising:

[0030] Shaft 6, upper support seat 3, lower support seat 9, upper support arm 2, lower support arm 7, hydraulic cylinder 5, sleeve 1, wherein,

[0031] The upper support seat 3 and the lower support seat 9 are respectively arranged on the two end shaft heads of the shaft 6;

[0032] The upper support arm 2 and the lower support arm 7 are respectively connected with the two ends of the shaft 6;

[0033] The upper supporting arm 2 is provided with a hydraulic cylinder 5, the support of which is fixed on the shaft shoulder of the shaft 6;

[0034] The upper end of the upper supporting arm 2 and the lower supporting arm 7 are respectively provided with a circular arc surface, and the sleeve 1 is arranged on the circular arc surface.

[0035] Specifically, the sleeve 1 is arranged to be fixed on the output end of the transmission shaft.

[0036] In some embodiments, one end of the upper supporting seat 3 and the lower supporting seat 9 is a connecting plate, and the other end is provided with a first connecting hole.

[0037] In some embodiments, the connecting plate of the upper supporting seat 3 and the lower supporting seat 9 is arranged to be fixed on the transmission side frame through a bolt and a pin respectively.

[0038] In some embodiments, the two ends of the shaft 6 are respectively provided with a shaft hole matched with the first connecting hole of the upper supporting seat 3 and the lower supporting seat 9.

[0039] In some embodiments, one end of the upper supporting arm 2 and the lower supporting arm 7 is provided with a second connecting hole.

[0040] In some embodiments, the second connecting hole of the upper supporting arm 2 and the lower supporting arm 7 is respectively matched with the shaft hole of the shaft 6.

[0041] In some embodiments, the upper supporting arm 2 and the lower supporting arm 7 are respectively provided with a key 4 at the connection position with the shaft 6, and the key 4 is inserted into the side wall at the connection position of the upper supporting arm 2 and the lower supporting arm 7 with the shaft 6, so as to fix the connection of the upper supporting arm 2 and the lower supporting arm 7 with the shaft 6.

[0042] In some embodiments, the upper supporting seat 3 and the lower supporting seat 9 are arranged above and below the upper supporting arm 2 and the lower supporting arm 7 respectively, and the upper supporting seat 3 and the lower supporting seat 9 are respectively provided with a threaded hole, and a limiting bolt 8 is arranged in the threaded hole, and the length direction of the screw rod of the limiting bolt 8 is respectively towards the upper supporting arm 2 and the lower supporting arm 7.

[0043] Specifically, the limiting bolt 8 is arranged in the threaded hole and can be moved in the up-down direction by rotating, and the screw rod of the two limiting bolts is respectively used to press against the upper supporting arm 2 and the lower supporting arm 7, so as to limit the position of the upper supporting arm 2 and the lower supporting arm 7.

[0044] In some embodiments, a locking nut is arranged on the limiting bolt 8, which is used to lock the limiting bolt.

[0045] Working principle:

[0046] The transmission shaft positioning device provided by the application is used for small and medium-sized rolling mills, and accurately and reliably positions the transmission shaft during roll changing.

[0047] When the positioning device is installed and starts to work, the lower transmission shaft output end with a sleeve is placed on the arc surface of the lower supporting arm, and the center line of the lower transmission shaft output end is at the lowest position by the action of gravity; the upper transmission shaft output end with a sleeve is placed on the arc surface of the upper supporting arm, and the center line of the upper transmission shaft output end is at the highest position by the action of the hydraulic cylinder. At this time, the height positions of the center lines of the upper and lower transmission shaft output ends and the center lines of the upper and lower rolls are inconsistent, and the height positions of the upper and lower supporting arms must be adjusted by first feeding the rolls.

[0048] First, the roll changing hydraulic cylinder is controlled to send the lower roll system along the track to the corresponding position of the frame, and the lower roll system shaft head is taken as a reference to start lifting the lower transmission shaft by the point operation of the crane, and the operation is repeated several times until the lower transmission shaft joint is completely connected with the lower roll system shaft head; next, the limiting bolt on the lower supporting seat is screwed to lift the lower supporting arm, so that the arc surface of the lower supporting arm is tightly attached to the lower surface of the sleeve on the lower transmission shaft output end, and finally the limiting bolt is locked by the locking nut. The position of the lower supporting arm at this time is the normal position in work, and once the position is adjusted, it does not need to be concerned.

[0049] The height position adjustment process of the upper supporting arm is similar to the height position adjustment process of the lower supporting arm.

[0050] After the height positions of the upper and lower supporting arms are adjusted for the first time, the height positions of the center lines of the upper and lower transmission shaft output ends and the center lines of the upper and lower rolls are completely matched, and in the later use process, manual intervention is not needed.

[0051] As described above, the transmission shaft positioning device provided by the application has the advantages of simple structure, easy manufacturing, small size, simple operation, high reliability and safety, convenient maintenance and low use cost.

[0052] Note that all features disclosed in this specification (including any accompanying claims, abstract and drawings) can be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features. Further, where used, further, preferred, even further preferred or most preferred are used to describe certain embodiments, these terms are used to describe one or more embodiments and are not intended to exclude other embodiments. For example, a further preferred embodiment can be described as comprising features (a), (b) and (c). This does not exclude a further preferred embodiment comprising features (a) and (b) and a most preferred embodiment comprising features (a), (b) and (c).

[0053] In the implementation of the functions and steps, the corresponding functions and steps in various embodiments can also occur in a different order than shown. For example, two consecutive functions and steps can actually be performed or implemented substantially in parallel, or they can sometimes be performed or implemented in reverse order, depending on the functions involved.

[0054] Although the present application has been described in detail with general description and specific embodiments above, some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the present application, all belong to the scope of the present application claimed.

Claims

1. A driveshaft positioning device, characterized by, Comprising: a shaft, an upper bracket, a lower bracket, an upper supporting arm, a lower supporting arm, a hydraulic cylinder, a sleeve, wherein, the upper bracket and the lower bracket are respectively arranged on the two ends of the shaft; the upper supporting arm and the lower supporting arm are respectively connected with the two ends of the shaft; the lower part of the upper supporting arm is provided with a hydraulic cylinder, and the support of the hydraulic cylinder is fixed on the shaft shoulder of the shaft; the upper ends of the upper supporting arm and the lower supporting arm are respectively provided with a circular arc surface, and the sleeve is arranged on the circular arc surface.

2. The transmission shaft positioning device according to claim 1, wherein, one end of the upper bracket and the lower bracket is a connecting plate, and the other end is provided with a first connecting hole.

3. The transmission shaft positioning device according to claim 2, wherein, the two ends of the shaft are respectively connected with the first connecting hole of the upper bracket and the lower bracket through the shaft hole.

4. The transmission shaft positioning device according to claim 1, wherein, one end of the upper supporting arm and the lower supporting arm is provided with a second connecting hole.

5. The transmission shaft positioning device according to claim 4, wherein, the second connecting hole of the upper supporting arm and the lower supporting arm is respectively connected with the shaft through the shaft hole gap.

6. The transmission shaft positioning device according to claim 5, wherein, keys are respectively arranged at the connection between the upper supporting arm and the lower supporting arm and the shaft, and the keys are inserted into the side wall at the connection between the upper supporting arm and the lower supporting arm and the shaft.

7. The transmission shaft positioning device according to claim 1, wherein, the upper bracket and the lower bracket are respectively located above and below the upper supporting arm and the lower supporting arm, and the upper bracket and the lower bracket are respectively provided with threaded holes, the threaded holes are provided with limiting bolts, and the length direction of the screw rod of the limiting bolt respectively faces the upper supporting arm and the lower supporting arm.

8. The transmission shaft positioning device according to claim 7, wherein, a lock nut is arranged on the limiting bolt.

9. The transmission shaft positioning device according to claim 2, wherein, the connecting plate of the upper bracket and the lower bracket is respectively fixed on the transmission side frame through a bolt and a pin.

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