CN216180309U - Worm wheel adjusting device of rolling mill screwdown speed reducer - Google Patents

Worm wheel adjusting device of rolling mill screwdown speed reducer Download PDF

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Publication number
CN216180309U
CN216180309U CN202122635660.5U CN202122635660U CN216180309U CN 216180309 U CN216180309 U CN 216180309U CN 202122635660 U CN202122635660 U CN 202122635660U CN 216180309 U CN216180309 U CN 216180309U
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China
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worm wheel
worm
rolling mill
adjusting device
tool platform
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CN202122635660.5U
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Inventor
黎长友
文向东
马宁辉
杜传
蔺诗阳
付先燕
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Chongqing Iron and Steel Co Ltd
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Chongqing Iron and Steel Co Ltd
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Abstract

The utility model belongs to the technical field of machinery, and relates to a worm gear adjusting device and a worm gear adjusting method for a rolling mill screw-down speed reducer, wherein a stable tool platform device is manufactured according to the structure of the screw-down speed reducer, and comprises a tool platform substrate arranged at the bottom and a tool platform middle section arranged on the tool platform substrate; and the meshing with the worm can be guaranteed to meet the use requirement after adjustment. The utility model can finish debugging work only by once hoisting, greatly simplifies the previous complicated adjusting steps, shortens the repairing time, finally adjusts the gap of the gasket to meet the technical requirements of the use standard, effectively improves the repairing quality, and can be popularized and used in the field.

Description

Worm wheel adjusting device of rolling mill screwdown speed reducer
Technical Field
The utility model belongs to the technical field of machinery, and relates to a worm gear adjusting device of a rolling mill screw-down speed reducer.
Background
The current worm gear is adjusted as follows: the method comprises the steps of (1) finding out a central line of a worm gear by adopting a marking mode after the worm gear is arranged in a box body, measuring by adopting a height vernier, completely inaccurate data, then arranging an upper cover of the box body in a bearing and a gland, lifting the upper cover of the box body and a worm gear by adopting a steel wire rope hoist, and then measuring, wherein the method is extremely difficult, the operation is relatively complicated, and the measured data is relatively poor; the gasket is processed according to the measurement data and then is installed in the box again for measurement after being reassembled, whether the measurement meets the technical requirements or not can be adjusted to the optimal technical requirements through repeated hoisting operation for more than 5 times, the repair duration is greatly increased, and the mode is from bottom to top and is not beneficial to repair plans.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a worm gear adjusting device for a rolling mill reduction gear, which simplifies the complicated hoisting work compared to the conventional one by using a tooling platform for debugging.
In order to achieve the purpose, the utility model provides the following technical scheme: a worm wheel adjusting device of a rolling mill screw-down speed reducer comprises a double-layer mounting platform, wherein the double-layer mounting platform comprises a tooling platform substrate arranged at the bottom and a tooling platform middle section arranged in the middle;
install the hydraulic ram on the frock platform base plate, this hydraulic ram is gone up through worm wheel backup pad fixing device fixedly connected with worm wheel backup pad, and the worm wheel cooperation sets up in worm wheel backup pad top.
Optionally, a round hole for lifting the worm wheel supporting plate is formed in the middle section of the tool platform at the position of the worm wheel, and the size of the round hole is larger than that of the worm wheel.
Optionally, a worm gear bearing fixing guide block is further arranged around the circular hole on the middle section of the tool platform.
Optionally, the tool platform substrate is fixedly connected with the tool platform middle section through a lower end support column, and the tool platform middle section is provided with a plurality of support frames;
the support frame is provided with a pressing speed reducer upper box cover.
Optionally, a hydraulic ram fixing plate is arranged around the hydraulic ram on the tool platform substrate.
Optionally, the worm wheel support plate fixing device is fixed with the worm wheel support plate through a connecting bolt, and a thrust ball bearing is further installed between the worm wheel support plate fixing device and the hydraulic ram.
Optionally, the worm wheel includes double-row tapered roller bearings disposed at upper and lower ends of the upper and lower worm wheels, an upper worm wheel bearing chamber disposed outside the upper bearing, and a worm wheel adjusting shim disposed in the upper worm wheel bearing chamber.
Optionally, the worm wheel further comprises a bearing gland arranged on the worm wheel, and the bearing gland comprises a bearing outer ring pressing plate on the worm wheel and a bearing inner ring pressing plate on the worm wheel.
The utility model has the beneficial effects that:
1. according to the worm wheel adjusting device of the rolling mill screw-down speed reducer, a stable tool platform device is designed and manufactured according to the structure of the screw-down speed reducer, the tool platform is used for debugging, the complex hoisting work is simplified compared with the prior art, the bearing assembly and the adjustment of the central height gap of the worm wheel can be completed by placing the worm wheel on the tool device; and the meshing with the worm can be guaranteed to meet the use requirement after adjustment.
2. According to the worm wheel adjusting device of the rolling mill reduction gear, the worm wheel of the reduction gear is adjusted by adopting an improved adjusting mode, debugging can be completed only by carrying out once hoisting, the previous complicated adjusting steps are greatly simplified, the repairing time is shortened, finally the gap of the adjusting gasket meets the technical requirements of the use standard, the repairing quality is effectively improved, and the adjusting method can be popularized and used in the field.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic overall structural diagram of a worm gear adjusting device of a rolling mill reduction gear of the utility model.
Reference numerals: the device comprises a support frame 1, a pressing speed reducer upper box cover 2, a worm wheel upper bearing outer ring pressing plate 3, a worm wheel upper bearing chamber 4, a worm wheel adjusting gasket 5, a worm wheel upper bearing inner ring pressing plate 6, a double-row tapered roller bearing 7, a worm wheel central point 8, a worm wheel bearing fixing guide block 9, a tooling platform middle section 10, a lower end support column 11, a worm wheel support plate 12, a connecting bolt 13, a thrust ball bearing 14, a hydraulic ram 15, a hydraulic ram fixing plate 16, a tooling platform substrate 17 and a worm wheel support plate fixing device 18.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1, a worm gear adjusting device of a rolling mill reduction gear comprises a double-layer mounting platform, wherein the double-layer mounting platform comprises a tooling platform substrate 17 arranged at the bottom and a tooling platform middle section 10 arranged at the middle; a hydraulic ram 15 is installed on a tool platform substrate 17, a worm wheel supporting plate 12 is fixedly connected to the hydraulic ram 15 through a worm wheel supporting plate fixing device 18, a worm wheel is arranged above the worm wheel supporting plate 12 in a matching mode, a round hole for lifting the worm wheel supporting plate 12 is formed in the position of the worm wheel on a tool platform middle section 10, the size of the round hole is larger than that of the worm wheel, a worm wheel bearing fixing guide block 9 is further arranged around the round hole on the tool platform middle section 10, the tool platform substrate 17 is fixedly connected with the tool platform middle section 10 through a lower end supporting column 11, and a plurality of supporting frames 1 are installed on the tool platform middle section 10; be provided with on the support frame 1 and push down case lid 2 on the speed reducer, be provided with hydraulic ram fixed plate 16 around hydraulic ram 15 on frock platform base plate 17, worm wheel backup pad fixing device 18 passes through connecting bolt 13 and worm wheel backup pad 12 is fixed, still install thrust ball bearing 14 between its and the hydraulic ram 15, the worm wheel is including setting up the double-row tapered roller bearing 7 at both ends about the worm wheel, set up bearing chamber 4 on the worm wheel outside the upper end bearing, and set up worm wheel adjusting shim 5 in bearing chamber 4 on the worm wheel, the worm wheel is still including setting up the bearing gland on the worm wheel, this bearing gland includes bearing outer race clamp plate 3 on the worm wheel and bearing inner race clamp plate 6 on the worm wheel.
A worm gear adjusting method of a rolling mill screw-down reducer is applied to the worm gear adjusting device of the rolling mill screw-down reducer, and comprises the following steps:
s1, hanging the worm wheel with the bearing mounted at the lower end into a worm wheel bearing fixing guide block 9 for fixing, adjusting a worm wheel support plate 12 to be flush with the middle section 10 of the tool platform by using a hydraulic ram 15, ensuring hydraulic pressure, and closing a hydraulic gate valve;
s2, hoisting the upper box cover 2 of the press-down speed reducer onto the support frame 1, installing a bearing at the upper end of the worm gear and a bearing gland, uniformly applying force to and fastening the bearing gland, and then releasing pressure of the 15-liter hydraulic jack at the lowest end to enable the support device assembly to retract downwards, so that a large gap is formed between the worm gear support flat plate and the worm gear, the worm gear is in a self-falling state, and the conditions of data acquisition and measurement are achieved;
s3, measuring the gear height of the worm gear, and dividing by 2 to obtain basic data before adjustment (the worm gear center point 8 and the top of the support frame 1 are on the same line, which is a basic principle);
s4, according to basic data, a height cursor is adopted, the end face of the upper box cover is used as a base point to measure the lower end face of the worm gear, and the height difference size between the worm gear center point 8 and the end face center of the upper box body is obtained through measurement; measuring the addition and subtraction of the multipoint calculated average value and the basic data to obtain an adjustment data record, and adjusting the gasket according to the relation between the final measurement result and the height difference of the center of the end face of the upper box;
s5, performing pad adding and subtracting treatment according to the measurement data, grinding the pad to a calculated size when the pad is subtracted, and performing pad adding treatment according to the size required by the measurement result when the pad is added; and finally, mounting the device on the mounting position of the worm wheel adjusting gasket 5, and measuring data once again after the mounting is finished.
All the debugging and installation work of the utility model is completed by operating the device, and finally the device is directly installed in a box body of a screw-down speed reducer after the technical requirement data is reached, thus completing the repair work. The method for adjusting the worm wheel can meet the technical requirement of repair only by hoisting for 1 time, can greatly shorten the repair period and labor force, and ensures and improves the repair quality.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims (7)

1. The utility model provides a rolling mill pushes down worm wheel adjusting device of speed reducer which characterized in that: the double-layer mounting platform comprises a tool platform substrate arranged at the bottom and a tool platform middle section arranged in the middle; the hydraulic jack is arranged on the tooling platform substrate, a worm wheel supporting plate is fixedly connected to the hydraulic jack through a worm wheel supporting plate fixing device, and a worm wheel is arranged above the worm wheel supporting plate in a matching manner;
the worm wheel supporting plate fixing device is fixed with the worm wheel supporting plate through a connecting bolt, and a thrust ball bearing is further arranged between the worm wheel supporting plate fixing device and the hydraulic jack.
2. The worm gear adjusting device of the rolling mill reduction gear according to claim 1, characterized in that: and a round hole for lifting the worm wheel supporting plate is formed in the middle section of the tool platform at the worm wheel position, and the size of the round hole is larger than that of the worm wheel.
3. The worm gear adjusting device of the rolling mill reduction gear according to claim 2, characterized in that: and a worm wheel bearing fixing guide block is also arranged around the round hole on the middle section of the tool platform.
4. The worm gear adjusting device of the rolling mill reduction gear according to claim 1, characterized in that: the tool platform substrate is fixedly connected with the middle section of the tool platform through a lower end support column, and a plurality of support frames are arranged on the middle section of the tool platform;
the support frame is provided with a pressing speed reducer upper box cover.
5. The worm gear adjusting device of the rolling mill reduction gear according to claim 1, characterized in that: and a hydraulic jack fixing plate is arranged around the hydraulic jack on the tooling platform substrate.
6. The worm gear adjusting device of the rolling mill reduction gear according to claim 1, characterized in that: the worm wheel comprises double-row tapered roller bearings arranged at the upper end and the lower end of the upper worm wheel, a worm wheel upper bearing chamber arranged outside the upper bearing, and a worm wheel adjusting gasket arranged in the worm wheel upper bearing chamber.
7. The worm gear adjusting device of the rolling mill reduction gear according to claim 6, characterized in that: the worm wheel also comprises a bearing gland arranged on the worm wheel, and the bearing gland comprises a bearing outer ring pressing plate on the worm wheel and a bearing inner ring pressing plate on the worm wheel.
CN202122635660.5U 2021-10-29 2021-10-29 Worm wheel adjusting device of rolling mill screwdown speed reducer Active CN216180309U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122635660.5U CN216180309U (en) 2021-10-29 2021-10-29 Worm wheel adjusting device of rolling mill screwdown speed reducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122635660.5U CN216180309U (en) 2021-10-29 2021-10-29 Worm wheel adjusting device of rolling mill screwdown speed reducer

Publications (1)

Publication Number Publication Date
CN216180309U true CN216180309U (en) 2022-04-05

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Application Number Title Priority Date Filing Date
CN202122635660.5U Active CN216180309U (en) 2021-10-29 2021-10-29 Worm wheel adjusting device of rolling mill screwdown speed reducer

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114012678A (en) * 2021-10-29 2022-02-08 重庆钢铁股份有限公司 Worm wheel adjusting device and method for rolling mill screw-down speed reducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114012678A (en) * 2021-10-29 2022-02-08 重庆钢铁股份有限公司 Worm wheel adjusting device and method for rolling mill screw-down speed reducer
CN114012678B (en) * 2021-10-29 2024-03-29 重庆钢铁股份有限公司 Worm gear adjusting device and method for rolling mill reduction gear

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