CN210548043U

CN210548043U - Eccentric extrusion structure

Info

Publication number: CN210548043U
Application number: CN201921196387.7U
Authority: CN
Inventors: 郝广增
Original assignee: Xinxing Ductile Iron Pipes Co Ltd
Current assignee: Xinxing Ductile Iron Pipes Co Ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-05-19
Anticipated expiration: 2029-07-26

Abstract

The utility model provides an eccentric extrusion structure, belonging to the technical field of cast tube production, comprising a bracket, a rotating shaft, an eccentric sleeve, an extrusion wheel and a positioning component, wherein the bracket is provided with a connecting hole; the rotating shaft penetrates through the connecting hole and is rotatably connected with the bracket; the eccentric sleeve is fixedly sleeved on the rotating shaft and is eccentrically arranged with the rotating shaft; the extrusion wheel rotates to be sleeved on the eccentric sleeve, and the positioning assembly is arranged on the support and used for positioning the rotating shaft and the extrusion wheel. The utility model provides an eccentric extrusion structure, the during operation rotates the pivot, eccentric cover is along with the rotation of pivot and eccentric rotation, and then adjusts the extrusion wheel and remove the distance between the axle, then rotate the extrusion wheel alone and remove an eccentric rotation towards, and extrude in removing epaxially under the action of gravity, reach the purpose that the direction removed the axle motion, need not to remove whole eccentric extrusion structure through this kind of mode, only rotate the pivot and can adjust the extrusion wheel and remove the distance between the axle, the work efficiency is improved.

Description

Eccentric extrusion structure

Technical Field

The utility model belongs to the technical field of cast tube production, more specifically say, relate to an eccentric extrusion structure.

Background

In the automatic production process of the cast tube, the travel of the moving shaft during core feeding is long, eccentricity and inclination easily occur, the work positioning of the moving shaft in the core feeding process is inaccurate, the moving shaft is damaged, and the normal work of the automatic production of the cast tube is influenced. At present, eccentric wheels are respectively arranged on two sides of a moving shaft, the moving shaft is extruded by the eccentric wheels to guide the movement of the moving shaft, but when moving shafts with different diameters are fed, the distance between the moving shaft and the eccentric wheels changes, the eccentric wheels extrude the moving shaft to guide under the action of gravity, and the distance between the moving shaft and the eccentric wheels changes to directly change the extrusion force of the eccentric wheels to the moving shaft, so that the problem of guide failure of the eccentric wheels is caused, and therefore the position of the eccentric wheels needs to be moved, and the eccentric wheels can generate enough extrusion force to the moving shaft to guide. The mode of moving the eccentric wheel has low efficiency, and influences the normal operation of the cast tube.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an eccentric extrusion structure to solve the lower technical problem of work efficiency who uses the eccentric wheel direction to remove the axle motion that exists among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided an eccentric extrusion structure including:

the bracket is provided with a connecting hole;

the rotating shaft penetrates through the connecting hole and is rotatably connected with the bracket;

the eccentric sleeve is fixedly sleeved on the rotating shaft and is eccentrically arranged with the rotating shaft;

the extrusion wheel is rotatably sleeved on the eccentric sleeve and is used for extruding the movable shaft;

and the positioning assembly is arranged on the support and used for positioning the rotating shaft and the extrusion wheel.

Further, the positioning assembly comprises:

one end of the cam is fixed on the end face of the rotating shaft, and the other end of the cam is provided with a through hole;

and a plurality of threaded holes surrounding the central shaft of the rotating shaft are uniformly distributed on the bracket, and the cam is fixedly connected with the bracket by virtue of bolts penetrating through the through holes and the corresponding threaded holes.

Further, the rotating shaft and the eccentric sleeve are integrally formed.

Further, a rubber layer is arranged on the outer circumferential surface of the extrusion wheel.

Further, the bracket includes:

a first support plate;

the second supporting plate is arranged opposite to the first supporting plate at intervals;

the first supporting plate and the second supporting plate are provided with the connecting holes, and two ends of the rotating shaft penetrate through the two connecting holes respectively and are rotatably connected with the first supporting plate and the second supporting plate.

Furthermore, the two ends of the rotating shaft are respectively connected to the first supporting plate and the second supporting plate in a rotating manner through positioning sleeves.

Furthermore, the extrusion wheel is rotatably sleeved on the eccentric sleeve through a bearing, and bearing glands for limiting the bearing are fixedly arranged on two sides of the hole wall of the extrusion wheel.

Furthermore, the number of the bearings is at least two, and retainer rings for positioning the two adjacent bearings are arranged on the hole wall of the extrusion wheel.

The utility model provides an eccentric extrusion structure's beneficial effect lies in: compared with the prior art, the utility model discloses eccentric extrusion structure, in operation, take two eccentric extrusion structures, place respectively in the both sides of removing axle direction of motion, support two supports respectively in the subaerial of the both sides of removing the axle, then rotate the pivot, eccentric cover is eccentric along with the rotation of pivot and is rotated, and then adjust the extrusion wheel and remove the distance between the axle, eccentric cover rotates behind the suitable position, use locating component with the pivot, eccentric cover and support fixed connection, then rotate extrusion wheel orientation alone and remove the eccentric rotation of axle, and extrude under the action of gravity epaxially in removing, reach the purpose that the direction removed the axle motion, need not to remove whole eccentric extrusion structure through this kind of mode, only rotate the pivot and can adjust the extrusion wheel and remove the distance between the axle, and the work efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a cross-sectional view of an eccentric extrusion structure provided in an embodiment of the present invention;

fig. 2 is a first left view of an eccentric extrusion structure provided in an embodiment of the present invention;

fig. 3 is a second left side view of the eccentric pressing structure according to the embodiment of the present invention;

fig. 4 is a schematic view of a usage state of the eccentric pressing structure according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a first support plate according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1. a support; 11. a first support plate; 12. a second support plate; 13. a threaded hole; 14. mounting grooves; 15. an accommodating space; 16. a positioning sleeve; 2. a rotating shaft; 3. an eccentric sleeve; 31. a bearing gland; 32. a bearing; 4. an extrusion wheel; 41. a retainer ring; 5. a positioning assembly; 51. a cam; 511. a through hole; 52. a screw; 6. the shaft is moved.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 4, the eccentric pressing structure of the present invention will be described. An eccentric extrusion structure comprises a support 1, a rotating shaft 2, an eccentric sleeve 3, an extrusion wheel 4 and a positioning assembly 5, wherein a connecting hole is formed in the support 1; the rotating shaft 2 penetrates through the connecting hole to be rotatably connected with the bracket 1; the eccentric sleeve 3 is fixedly sleeved on the rotating shaft 2 and is eccentrically arranged with the rotating shaft 2; the extrusion wheel 4 is rotationally sleeved on the eccentric sleeve 3 and is used for extruding the movable shaft 6; the positioning component 5 is arranged on the bracket 1 and used for positioning the rotating shaft 2 and the extrusion wheel 4.

Compared with the prior art, the eccentric extrusion structure provided by the utility model has the advantages that when in use, two eccentric extrusion structures are taken and respectively placed at the two sides of the moving direction of the moving shaft 6, the two brackets 1 are respectively supported on the ground at the two sides of the moving shaft 6, then the rotating shaft 2 is rotated, the eccentric sleeve 3 eccentrically rotates along with the rotation of the rotating shaft 2, further the distance between the extrusion wheel 4 and the moving shaft 6 is adjusted, after the eccentric sleeve 3 rotates to a proper position, the rotating shaft 2, the eccentric sleeve 3 and the bracket 1 are fixedly connected by using the positioning component 5, then the extrusion wheel 4 is independently rotated to eccentrically rotate towards the moving shaft 6 and is extruded on the moving shaft 6 under the action of gravity, so as to achieve the purpose of guiding the moving shaft 6 to move, by the mode, the distance between the extrusion wheel 4 and the moving shaft 6 can be adjusted only by rotating the rotating shaft 2 without moving the whole eccentric extrusion structure, and the working efficiency is improved.

Two eccentric extrusion structures are taken out and respectively fixed on two sides of the moving direction of the moving shaft 6, the two supports 1 are fixed on the ground or on a platform, and the two extrusion wheels 4 which are symmetrically arranged on two sides of the moving shaft 6 are contacted and extruded on the moving shaft 6 to achieve the purpose of guiding movement. When the rotating shaft 2 and the eccentric sleeve 3 are rotated, the extrusion wheel 4 does not rotate along with the rotation of the eccentric sleeve 3, the eccentric sleeve 3 eccentrically rotates according to the size of the moving shaft 6, the eccentric sleeve 3 and the rotating shaft 2 are fixed on the support 1 by using the positioning component 5 after the eccentric sleeve 3 rotates to a proper position, and then the extrusion wheel 4 is independently rotated to enable the extrusion wheel 4 to contact and extrude the moving shaft 6. Also can be 120 degrees respectively with three this support 1 during the use around removing the axle 6 equipartition setting, make the removal of three extrusion wheel 4 coextrusion direction removal axle 6, because extrusion wheel 4 is connected for rotating with eccentric bushing 3, consequently, the phenomenon that the dead removal axle 6 of card appears can not appear. One such bracket 1 may also be provided, the other two being provided as fixed guide wheels.

The eccentric sleeve 3 and the rotating shaft 2 can be integrally formed, so that the strength of the eccentric sleeve 3 and the rotating shaft 2 is higher, and the processing and the installation are all easily completed. The rotating extrusion wheel 4 can be rotated by hand pushing or the extrusion wheel 4 can be automatically rotated under the action of gravity

Referring to fig. 1 to 5, as a specific embodiment of the eccentric extrusion structure provided by the present invention, the positioning assembly 5 includes a cam 51, one end of the cam 51 is fixed on the end surface of the rotating shaft 2, and the other end is provided with a through hole 511; a plurality of threaded holes 13 surrounding the central axis of the rotating shaft 2 are uniformly distributed on the bracket 1, the cam 51 is fixedly connected with the bracket 1 by bolts passing through the through holes 511 and the corresponding threaded holes 13, the central axis of one end of the cam 51 is coaxially arranged with the central axis of the rotating shaft 2, the cam 51 is fixedly connected with the rotating shaft 2 by using screws 52, the other end of the cam 51 protrudes outwards, when in use, one end of the cam 51 is pushed by hand to drive the rotating shaft 2 to rotate, the eccentric sleeve 3 on the rotating shaft 2 does eccentric motion along with the rotation of the rotating shaft 2, the extrusion wheel 4 is close to the moving shaft 6, the distance between the extrusion wheel 4 and the moving shaft 6 is adjusted, the extrusion wheel 4 can better guide the linear motion of the moving shaft 6, after the extrusion wheel 4 moves to a proper position, the through holes 511 on the cam 51 correspond to one threaded hole 13 on the bracket 1, and the through holes 511 and the threaded holes, the cam 51 is fixed on the bracket 1 to fix the positions of the rotating shaft 2 and the eccentric sleeve 3, and to ensure the moving shaft 6 to move smoothly. One end that eccentric cover 3 was kept away from to support 1 is equipped with mounting groove 14, cam 51 is located mounting groove 14 and rotates with mounting groove 14 to be connected, the one end that eccentric cover 3 was kept away from to support 1 is equipped with mounting groove 14, cam 51 is located mounting groove 14, the connecting hole passes the tank bottom of mounting groove 14, the tank bottom of mounting groove 14 is all located to each screw hole 13, set up mounting groove 14 in one side of support 1, the connecting hole is passed to the one end of pivot 2, cam 51 installs in mounting groove 14 with 2 fixed connection of pivot, whole eccentric extrusion structure's volume has been reduced, in the use, the staff controls cam 51 at the 14 internal rotation of mounting groove, after rotating to suitable position, through-hole 511 corresponds with screw hole 13, and use bolt fixed cam. A cover for closing the mounting groove 14 may be provided on the bracket 1, and a lock may be provided to lock the cover and the bracket 1 to prevent other people from rotating the cam 51 at will to affect the work.

Please refer to fig. 1, as a specific embodiment of the eccentric extrusion structure provided by the present invention, further, the rotating shaft 2 and the eccentric sleeve 3 are integrally formed, the eccentric sleeve 3 is fixed on the rotating shaft 2, when the rotating shaft 2 rotates, the eccentric sleeve 3 is driven to eccentrically rotate, in order to ensure that the connection strength between the eccentric sleeve 3 and the rotating shaft 2 is higher, the eccentric sleeve 3 and the rotating shaft 2 are integrally formed, so as to improve the connection strength between the rotating shaft 2 and the eccentric sleeve 3, and the eccentric extrusion structure normally operates.

Referring to fig. 1 to 4, as a specific embodiment of the eccentric extrusion structure provided by the present invention, a rubber layer is disposed on the outer circumferential surface of the extrusion wheel 4, when the extrusion wheel 4 extrudes the moving shaft 6, the extrusion wheel 4 contacts the outer side surface of the moving shaft 6, so as to ensure that the moving shaft 6 is not scratched, and therefore, the rubber layer is disposed on the outer side surface of the extrusion wheel 4, thereby reducing the acting force on the moving shaft 6. Be equipped with accommodation space 15 in the support 1, the connecting hole runs through accommodation space 15, and the both ends of pivot 2 pass the connecting hole respectively and rotate with support 1 and be connected, and eccentric cover 3 and extrusion wheel 4 all are located accommodation space 15, set up accommodation space 15 on support 1, and the both ends of pivot 2 rotate respectively and connect on the inner wall of accommodation space 15. And eccentric cover 3 and extrusion wheel 4 all set up in accommodation space 15, make and drive 2 eccentric covers 3 motion of pivot to and drive extrusion wheel 4 and rotate and extrude removal axle 6 towards removal axle 6, eccentric cover 3 and extrusion wheel 4 rotate in accommodation space 15, and stability is higher. The accommodating space 15 is at least provided with an opening, and the width of the accommodating space 15 is smaller than the diameter of the eccentric extrusion structure, so that the extrusion wheel 4 rotates out of the accommodating space 15 to achieve the purpose of approaching and guiding the moving shaft 6 to move.

Referring to fig. 1 to 3, as a specific embodiment of the eccentric extrusion structure provided by the present invention, the bracket 1 includes a first supporting plate 11 and a second supporting plate 12, and the second supporting plate 12 is disposed opposite to the first supporting plate 11 at an interval; the first support plate 11 and the second support plate 12 are both provided with connecting holes, two ends of the rotating shaft 2 respectively penetrate through the two connecting holes to be rotatably connected with the first support plate 11 and the second support plate 12, and an accommodating space 15 is formed between the second support plate 12 and the first support plate 11; the first support plate 11 and the second support plate 12 are vertically arranged at intervals to form the support 1, and the connecting holes penetrate through the first support plate 11 and the second support plate 12, so that two ends of the rotating shaft 2 are rotatably connected into the two connecting holes; an accommodating space 15 is formed between the first supporting plate 11 and the second supporting plate 12, both sides of the accommodating space 15 are open, and the extrusion wheel 4 is disposed in the accommodating space 15 and can protrude out of the accommodating space 15 when rotating. The mounting groove 14 is provided on a side of the first support plate 11 or the second support plate 12 away from the accommodating space 15. A connection plate may be provided between the first and

second support plates

11 and 12 such that the first and

second support plates

11 and 12 and the connection plate form a stable support structure. Furthermore, the terms "first", "second" and "first" 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" or "second" 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 specifically limited otherwise.

Please refer to fig. 1, as a specific embodiment of the eccentric extrusion structure provided by the present invention, two ends of the rotating shaft 2 are respectively rotatably connected to the first supporting plate 11 and the second supporting plate 12 through the positioning sleeves 16, the positioning sleeves 16 are respectively disposed in the connecting holes, two ends of the rotating shaft 2 are respectively installed in the positioning sleeves 16, so that the rotating shaft 2 is positioned in the axial direction without limiting the rotation of the rotating shaft 2, and the rotating shaft 2 can be stably and rapidly rotated without worrying about the occurrence of axial movement.

Please refer to fig. 1, as a specific embodiment of the eccentric extrusion structure provided by the present invention, the extrusion wheel 4 is rotatably sleeved on the eccentric sleeve 3 through the bearing 32, the bearing gland 31 for the limiting bearing 32 is fixedly arranged on both sides of the hole wall of the extrusion wheel 4, the extrusion wheel 4 is rotatably connected on the eccentric sleeve 3, after the eccentric sleeve 3 rotates to a suitable position along with the rotating shaft 2, the worker needs to rotate the extrusion wheel 4, the extrusion wheel 4 is pressed to and contacts the moving shaft 6, the purpose of guiding the moving shaft 6 to move linearly is achieved, and the extrusion wheel 4 is rotated more smoothly through the bearing 32. The extrusion wheel 4 is of an annular structure, a mounting hole is formed in the axis of the extrusion wheel 4, the bearing 32 is arranged in the mounting hole, namely, the hole wall of the extrusion wheel 4, after the bearing 32 is mounted, bearing glands 31 are respectively mounted on two sides of the hole wall of the extrusion wheel 4, one end of each bearing gland 31, which is located in the hole wall of the extrusion wheel 4, abuts against the bearing 32 to limit the position of the bearing 32, and the bearing glands 31 are fixedly connected to the extrusion wheel 4.

Referring to fig. 1, as a specific embodiment of the eccentric extrusion structure provided by the present invention, at least two bearings 32 are provided, the hole wall of the extrusion wheel 4 is provided with two retaining rings 41 for positioning two adjacent bearings 32, two bearing pressing covers 31 are provided and respectively disposed on two sides of the retaining rings 41, the two bearings 32 are respectively disposed on two sides of the retaining rings 41, and the two bearings 32 are limited by the bearing pressing covers 31.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Eccentric extrusion structure, its characterized in that includes:

the bracket is provided with a connecting hole;

2. The eccentric extrusion of claim 1 wherein the positioning assembly comprises:

3. The eccentric extrusion structure of claim 1, wherein the rotating shaft and the eccentric sleeve are integrally formed.

4. The eccentric extrusion structure as set forth in claim 1, wherein a rubber layer is provided on the outer circumferential surface of the extrusion wheel.

5. The eccentric extrusion structure of claim 1 wherein the bracket comprises:

a first support plate;

6. The eccentric extrusion structure of claim 5, wherein both ends of the rotation shaft are rotatably connected to the first support plate and the second support plate through positioning sleeves, respectively.

7. The eccentric extrusion structure of any one of claims 1 to 6, wherein the extrusion wheel is rotatably sleeved on the eccentric sleeve through a bearing, and bearing glands for limiting the bearing are fixedly arranged on both sides of a hole wall of the extrusion wheel.

8. The eccentric extrusion structure of claim 7 wherein there are at least two of said bearings, and the wall of the hole of said extrusion wheel is provided with a retainer ring for positioning adjacent two of said bearings.