CN211439799U - Rolling mill pin puller - Google Patents
Rolling mill pin puller Download PDFInfo
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- CN211439799U CN211439799U CN201922194886.9U CN201922194886U CN211439799U CN 211439799 U CN211439799 U CN 211439799U CN 201922194886 U CN201922194886 U CN 201922194886U CN 211439799 U CN211439799 U CN 211439799U
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- hole
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- rolling mill
- nut
- bolt
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Abstract
The utility model relates to a rolling mill pin puller should draw the ware and include: the support comprises a top plate and side plates oppositely arranged on two sides of the bottom of the top plate, a first through hole penetrating through the upper end face and the lower end face of the top plate is formed in the top plate, the height L of each side plate is larger than the length of each pin, and the distance D between the side plates is larger than the radial size of each pin; the clamping plate is positioned at the top of the support, at least 2 second through holes with different apertures penetrating through the upper end surface and the lower end surface of the clamping plate are arranged on the clamping plate at intervals, and the aperture of each second through hole is less than or equal to that of each first through hole; the bolt is provided with a nut in a threaded fit mode, the radial size of the nut is larger than the aperture of the second through hole, the bolt sequentially penetrates through the second through hole and the first through hole and is inserted into the internal threaded hole, and the bolt is in threaded fit with the internal threaded hole; the bolt has a locking direction and a dismounting direction, and when the nut is rotated along the locking direction, the bolt can drive the pin to move towards the top plate and separate from the rolling mill body. This scheme has simple structure, application scope extensively, dismantles convenient characteristics.
Description
Technical Field
The utility model belongs to steel production equipment maintenance instrument especially relates to a rolling mill pin puller.
Background
With the development of the steel industry and the increasing demand of society on various steels, the demand of a puller rolling mill on the yield is gradually increased, and in order to meet the market demand, a rolling mill increases the rolling speed to improve the yield, but the load of the mill is increased, and the maintenance frequency of the mill is gradually increased. One of the steps of maintaining the rolling mill needs to disassemble various pins, but pin parts are generally tightly matched with a connected piece and are difficult to rotate, so that the pin parts are difficult to disassemble, particularly in imported rolling mills, and the pin parts need to be installed back to the original positions after the pin replacement is finished. The pin is tightly matched, cannot rotate, has an outward single surface, is extremely difficult to disassemble, prolongs the maintenance time of the equipment, not only does not bring the capacity of the equipment into play, but also invisibly increases the production cost and brings loss to branch plants.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solution is dismantled the pin and is spent time long, leads to overhaul of the equipments and takes time long with the maintenance, has wasted the productivity of equipment, causes the production output to reduce, increases rolling cost's problem in the intangible, provides a rolling mill pin dismounting device now, and the rolling mill pin puller promptly.
In order to realize the purpose, the utility model discloses a technical scheme is: a pin puller of a rolling mill is provided with a rolling mill body and a pin arranged on the rolling mill body in an interference fit manner, wherein the top end of the pin is provided with an internal threaded hole along the axial direction;
this puller includes:
the support comprises a top plate and side plates oppositely arranged on two sides of the bottom of the top plate, a first through hole penetrating through the upper end face and the lower end face of the top plate is formed in the top plate, the height L of each side plate is larger than the length of each pin, and the distance D between the side plates is larger than the radial size of each pin;
the clamping plate is positioned at the top of the support, at least 2 second through holes with different apertures penetrating through the upper end surface and the lower end surface of the clamping plate are arranged on the clamping plate at intervals, and the aperture of each second through hole is less than or equal to that of each first through hole;
the bolt comprises a screw rod and a nut coaxially and integrally formed at one end of the screw rod, the screw rod is provided with a nut in a threaded fit manner, the radial dimension of the nut is larger than the aperture of the second through hole, one end of the screw rod, far away from the nut, sequentially penetrates through the second through hole and the first through hole and is inserted into the internal threaded hole, and the screw rod is in threaded fit with the internal threaded hole; the bolt has a locking direction and a dismounting direction, and when the nut is rotated along the locking direction, the bolt can drive the pin to move towards the top plate and separate from the rolling mill body.
Furthermore, the cardboard is rectangular shape, and the second through-hole sets gradually and the aperture of second through-hole reduces in proper order along cardboard length direction.
Compared with the prior art, the utility model discloses the technological effect who gains does: the utility model discloses when imported rolling mill pin puller used, select the second through-hole in suitable aperture through the slip cardboard to the bolt and the nut of the suitable size that the installation corresponds. After the hole size is selected, can dismantle the pin that has multiple internal thread hole, compare in traditional dismantlement method, utilize the utility model discloses rolling mill pin puller extensive applicability can save a large amount of time, indirect reduction in production cost.
Drawings
Fig. 1 is a schematic structural view (top view direction) of a rolling mill pin puller according to an embodiment of the present invention.
Fig. 2 is a schematic structural view (front view direction) of the rolling mill pin puller according to the embodiment of the present invention.
FIG. 3 is a schematic structural view of the rolling mill pin puller (left view direction)
The reference numbers in the figures are: 1. the rolling mill comprises a rolling mill body, 2 pins, 3 supports, 4 first through holes, 5 clamping plates, 6 second through holes, 7 bolts and 8 nuts;
l: the height of the side panel;
and D, the distance between the side plates.
Detailed Description
The utility model discloses not confine the following embodiment to, general technical personnel in this field can adopt other multiple embodiment to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The specific embodiment of the utility model is shown in fig. 1 to 3, a rolling mill pin puller, the rolling mill is provided with a rolling mill body 1 and a pin 2 which is arranged on the rolling mill body 1 in an interference manner, and the top end of the pin 2 is provided with an internal thread hole along the axial direction;
this puller includes:
the support 3 comprises a top plate and side plates oppositely arranged on two sides of the bottom of the top plate, a first through hole 4 penetrating through the upper end face and the lower end face of the top plate is formed in the top plate, the height L of each side plate is larger than the length of the pin 2, and the distance D between the side plates is larger than the radial size of the pin 2;
the clamping plate 5 is positioned at the top of the support 3, at least 2 second through holes 6 with different apertures penetrating through the upper end surface and the lower end surface of the clamping plate 5 are arranged on the clamping plate 5 at intervals, and the aperture of each second through hole 6 is less than or equal to that of each first through hole 4;
the bolt 7 comprises a screw rod and a nut coaxially and integrally formed at one end of the screw rod, the screw rod is provided with a nut 8 in a threaded fit mode, the radial size of the nut 8 is larger than the aperture of the second through hole 6, one end, far away from the nut, of the screw rod sequentially penetrates through the second through hole 6 and the first through hole 4 and is inserted into the internal threaded hole, and the screw rod is in threaded fit with the internal threaded hole; the bolt 7 has a locking direction and a removal direction, and when the nut 8 is rotated in the locking direction, the bolt 7 can drive the pin 2 to move towards the top plate and separate from the rolling mill body 1.
The use method of the rolling mill pin puller in the embodiment comprises the following steps: the clamping plate 5 is slid to select a hole of a suitable size, and then a suitable full-tooth bolt and a nut of a corresponding specification are selected. The nut is screwed at the bottom of the bolt (namely, the nut is close to the nut), then the screw rod of the bolt sequentially penetrates through the second through hole of the clamping plate and the first through hole of the support, the pin is screwed in and locked, then the support and the clamping plate are placed, the bottom of the side plate of the clamping plate supports against the rolling mill body 1, the nut is rotated in the locking direction by a wrench (the embodiment is clockwise), and in the rotating process, the bolt and the pin are screwed out together to achieve the purpose of disassembling the pin.
The above description is only 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 can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.
Claims (2)
1. A pin puller of a rolling mill is provided with a rolling mill body (1) and a pin (2) which is arranged on the rolling mill body (1) in an interference fit manner, wherein the top end of the pin (2) is provided with an internal threaded hole along the axial direction;
the method is characterized in that: this puller includes:
the support (3) comprises a top plate and side plates oppositely arranged on two sides of the bottom of the top plate, a first through hole (4) penetrating through the top plate and the bottom plate is formed in the top plate, the height L of each side plate is larger than the length of each pin (2), and the distance D between the side plates is larger than the radial size of each pin (2);
the clamping plate (5) is positioned at the top of the support (3), at least 2 second through holes (6) which penetrate through the clamping plate (5) and have different apertures are formed in the clamping plate (5) at intervals, and the aperture of each second through hole (6) is not more than that of the corresponding first through hole (4);
the bolt (7) comprises a screw rod and a nut coaxially and integrally formed at one end of the screw rod, the screw rod is provided with a nut (8) in a threaded fit mode, the radial size of the nut (8) is larger than the aperture of the second through hole (6), one end, far away from the nut, of the screw rod sequentially penetrates through the second through hole (6) and the first through hole (4) and is inserted into the internal threaded hole, and the screw rod is in threaded fit with the internal threaded hole; the bolt (7) has a locking direction and a dismounting direction, and when the nut (8) is rotated along the locking direction, the bolt (7) can drive the pin (2) to move towards the top plate and separate from the rolling mill body (1).
2. The rolling mill pin puller of claim 1, wherein: the clamping plate (5) is long-strip-shaped, the second through holes (6) are sequentially arranged along the length direction of the clamping plate (5), and the diameters of the second through holes (6) are sequentially reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922194886.9U CN211439799U (en) | 2019-12-09 | 2019-12-09 | Rolling mill pin puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922194886.9U CN211439799U (en) | 2019-12-09 | 2019-12-09 | Rolling mill pin puller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211439799U true CN211439799U (en) | 2020-09-08 |
Family
ID=72308516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922194886.9U Active CN211439799U (en) | 2019-12-09 | 2019-12-09 | Rolling mill pin puller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211439799U (en) |
-
2019
- 2019-12-09 CN CN201922194886.9U patent/CN211439799U/en active Active
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