CN219670966U

CN219670966U - Eccentric cone extractor for railway turnout

Info

Publication number: CN219670966U
Application number: CN202320250380.9U
Authority: CN
Inventors: 杨建勇
Original assignee: Wuhan High Speed Railway Engineering Section of China Railway Wuhan Group Co Ltd
Current assignee: Wuhan High Speed Railway Engineering Section of China Railway Wuhan Group Co Ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-09-12
Anticipated expiration: 2033-02-20

Abstract

The utility model belongs to the technical field of railway maintenance and overhaul tools, and discloses an eccentric cone extractor of a railway turnout, which comprises a supporting seat and a lifting mechanism for lifting the eccentric cone, wherein the lifting mechanism comprises a screw rod, the screw rod penetrates through a vertical through hole of the supporting seat, an adjusting cylinder is connected to the screw rod in a threaded manner, a plane bearing is sleeved on the screw rod, the plane bearing is positioned between the adjusting cylinder and the vertical through hole, the bottom end of the adjusting cylinder is movably connected with the upper part of the plane bearing, and the inner diameter of the plane bearing is larger than the diameter of the vertical through hole. The eccentric cone of the traditional tool operation has high loss rate, the utility model avoids the situation of deformation and damage of the eccentric cone when the eccentric cone directly applies force upwards, but supports the eccentric cone from the bottom and takes out the eccentric cone by adopting a rotary adjusting cylinder, the force application is stable in the process, and the eccentric cone can be stably and easily taken out even when oil stains and mud dirt are adhered to the eccentric cone, thereby being beneficial to rapidly completing the replacement operation of the railway turnout eccentric cone.

Description

Eccentric cone extractor for railway turnout

Technical Field

The utility model relates to an eccentric cone extractor for a railway turnout, and belongs to the technical field of railway maintenance tools.

Background

The eccentric cone, also called eccentric adjusting cone, is a component in a fastener system of the high-speed railway turnout, is used for adjusting the transverse position of a turnout structural member on the high-speed railway turnout, and in the fine adjustment operation of the high-speed railway turnout, the adjustment of the track gauge and the track direction of the turnout is realized by replacing the eccentric cone, and the eccentric cones with different specifications correspond to the transverse adjustment distances of corresponding levels. When changing the eccentric cone of new specification, need take out, retrieve original eccentric cone, its cross-section of eccentric cone is outside ellipse, inboard perfect circle, the inside wall is smooth unable adhesive force, and the thickness of eccentric cone each direction lateral wall is inconsistent, consequently be difficult to take out in the actual change operation, if use tools such as crow bar to pry out eccentric cone, make eccentric cone warp easily, take place the brittle fracture even, the piece of production is detained in the downthehole of base plate assembly eccentric cone, still clear up, just can change new eccentric cone, it is time consuming laborious, be difficult to improve operating efficiency. In order to save time, an operation tool capable of hooking and pulling out the eccentric cone is appeared, oil, mud and dust or a mixture are easy to adhere to the eccentric cone because the eccentric cone is in a field severe environment for a long time, the eccentric cone is difficult to be stably taken out from the hooking tool sometimes, and the eccentric cone is deformed when the acting force of the hooking tool is too large.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides an eccentric cone extractor for a railway turnout, which can stably extract an eccentric cone to be replaced under the condition of not damaging the eccentric cone.

In order to achieve the above purpose, the utility model provides an eccentric cone extractor of a railway turnout, which comprises a supporting seat and a lifting mechanism for lifting an eccentric cone, wherein the lifting mechanism comprises a screw rod, the screw rod penetrates through a vertical through hole of the supporting seat, an adjusting cylinder is connected to the screw rod in a threaded manner, a plane bearing is sleeved on the screw rod, the plane bearing is positioned between the adjusting cylinder and the vertical through hole, the bottom end of the adjusting cylinder is movably connected with the upper part of the plane bearing, and the inner diameter of the plane bearing is larger than the diameter of the vertical through hole.

Furthermore, the lower end of the adjusting cylinder is fixedly connected with an annular part, and the inner diameter of the annular part is larger than the outer diameter of the plane bearing.

Furthermore, the lower end of the screw rod is detachably connected with a hooking structure, and the hooking structures are multiple and symmetrically distributed by taking the center shaft of the screw rod as the center in the use state.

Further, the hooking structure comprises four special-shaped hooks, the screw rod penetrates through the center hole of the cross-shaped plate to be in threaded connection with the inner side wall of the thimble, U-shaped grooves are respectively formed in the four tail ends of the cross-shaped plate, and each U-shaped groove is movably connected with the upper portion of one special-shaped hook through a first bolt and a nut.

Further, a limiting part is arranged in the middle of the special-shaped hook.

Further, a gasket is arranged at the lower part of the plane bearing, and the gasket is sleeved on the screw rod.

Further, the outer side of the adjusting cylinder is hexagonal, and the outer side of the adjusting cylinder is matched with the hexagonal inner side of the lower part of the sleeve.

Further, the supporting seat comprises a supporting block and a supporting frame, a horizontal through hole capable of allowing the supporting block to pass through is formed in the upper portion of the supporting frame, and a top thread hole capable of being connected with a second bolt is formed in the position, above the horizontal through hole, of the supporting frame.

Further, the upper end of the screw rod is fixedly connected with a hexagonal handle.

Further, a transverse hole is formed in the upper portion of the sleeve, and a round rod penetrates through the transverse hole in a use state.

Compared with the prior art, the utility model has the beneficial effects that: the lifting mechanism for lifting the eccentric cone is arranged on the supporting seat, the lifting mechanism comprises a screw rod capable of vertically lifting, the screw rod is connected with an adjusting cylinder and a plane bearing, the adjusting cylinder and the plane bearing are matched with each other to enable the screw rod to be in a stable state in the lifting process, the screw rod is moved downwards relative to the supporting seat by rotating the adjusting cylinder in the process of taking out the eccentric cone through the lifting mechanism, the bottom of the lifting mechanism stretches into a hole of the eccentric cone to support the eccentric cone from the bottom surface of the eccentric cone, then the adjusting cylinder is rotated reversely, the screw rod ascends relative to the supporting seat, the bottom of the lifting mechanism supports the eccentric cone to slowly lift, and the stress of the eccentric cone in the whole process is stable. The utility model avoids the situation that the eccentric cone is deformed and damaged when the tool directly applies force upwards, the eccentric cone is supported from the bottom and is taken out by adopting a rotary adjusting cylinder, the force application is stable in the taking out process, and even when the eccentric cone is adhered with greasy dirt and mud dirt, the eccentric cone can be taken out stably and easily, thereby being beneficial to rapidly completing the replacing operation of the railway turnout eccentric cone.

Drawings

FIG. 1 is a schematic diagram of a semi-sectional structure of an eccentric cone extractor in an embodiment of the present utility model;

FIG. 2 is a schematic top view of the adjustment barrel of the eccentric cone extractor;

FIG. 3 is a schematic top view of a cross-shaped plate of the eccentric cone extractor;

FIG. 4 is a schematic view of an expanded configuration of a support base of the eccentric taper extractor;

FIG. 5 is a schematic view of a longitudinal cross-sectional structure of a thimble of the eccentric taper extractor;

FIG. 6 is a schematic side view of the sleeve of the eccentric taper extractor;

fig. 7 is a schematic view of a partial top view of an iron shim plate.

In the figure: 1. a support base; 101. a vertical through hole; 102. a support block; 103. a support frame; 104. a horizontal through hole; 105. a top thread hole; 2. a screw rod; 3. an adjustment cylinder; 301. an annular portion; 4. a planar bearing; 5. a special-shaped hook; 501. a limit part; 6. a cross-shaped plate; 601. a U-shaped groove; 7. a thimble; 8. a gasket; 9. a sleeve; 901. a transverse hole; 10. a hexagonal handle; 11. round stick; 12. an iron backing plate; 13. a vulcanizing ring; 14. a first bolt; 15. and a second bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

The lower half of fig. 1 is shown in a half-sectional view for convenience of illustration of the various structures. Referring to fig. 1, the eccentric cone extractor for the railway turnout in the embodiment comprises a supporting seat 1 and a lifting mechanism for lifting the eccentric cone, the lifting mechanism comprises a screw rod 2, the screw rod 2 penetrates through a vertical through hole 101 of the supporting seat 1, the diameter of the vertical through hole 101 is larger than that of the screw rod 2, the screw rod 2 can move up and down relative to the vertical through hole 101 in the use process, an adjusting cylinder 3 is connected to the screw rod 2 through threads, a plane bearing 4 is sleeved on the screw rod 2, the internal threads of the inner side wall of the adjusting cylinder 3 are matched with the threads of the screw rod 2, the plane bearing 4 is located between the adjusting cylinder 3 and the vertical through hole 101, the bottom end of the adjusting cylinder 3 is movably connected with the upper part of the plane bearing 4, the inner diameter of the plane bearing 4 is larger than that of the vertical through hole 101, the supporting seat 1 can bear the plane bearing 4, the supporting seat 1 supports the adjusting cylinder 3 through the plane bearing 4, the lower end of the screw rod 2 is connected with a hooking structure for supporting the eccentric cone from the bottom, the distance between the adjusting cylinder 3 and the plane bearing 4 relative to the supporting seat 1 is unchanged in the operation process, and the screw rod 2 moves up and down relative to the supporting seat 1 in the vertical direction.

Referring to fig. 1 and 2, the lower end of the adjusting cylinder 3 is fixedly connected with an annular portion 301, and the inner diameter of the annular portion 301 is larger than the outer diameter of the plane bearing 4, so that the annular portion 301 can wrap the plane bearing 4 from the upper portion and the side surface, dust is reduced from entering the plane bearing 4, bearing balls are prevented from rusting due to rainwater, sweat and the like, and stable and smooth use of the plane bearing 4 is ensured.

Referring to fig. 1 and 3, the lower end of the screw rod 2 is detachably connected with a plurality of hooking structures which are symmetrically distributed with the central axis of the screw rod 2 as the center in the use state. As the preferred embodiment, collude and get the structure and include four dysmorphism and collude 5, the lower extreme of lead screw 2 passes the centre bore of cross template 6 and the inside wall threaded connection of thimble 7, and the external diameter of thimble 7 is greater than the diameter of the centre bore of cross template 6, and cross template 6 cover can not drop out from the lower extreme on lead screw 2. The four ends of the cross-shaped plate 6 are respectively provided with a U-shaped groove 601, and each U-shaped groove 601 is movably connected with the upper part of one special-shaped hook 5 through a first bolt 14 and a nut. The tail end of the lower part of each special-shaped hook 5 protrudes outwards and can be clamped with one groove on the bottom surface of the eccentric cone.

Referring to fig. 1, 5 and 7, a limiting portion 501 is disposed in the middle of the special-shaped hook 5. The upper portion and the lower part parallel of dysmorphism collude 5, both and spacing portion 501 integrated into one piece, spacing portion 501 is the slope form, in the side of the taper tip of user's state thimble 7 supports spacing portion 501, can exert an outside force to the inside wall of eccentric cone then, make dysmorphism collude 5's lower extreme and the recess chucking of eccentric cone bottom surface, avoid eccentric cone by the in-process that is promoted, dysmorphism collude 5's lower extreme that appears is not hard up, the phenomenon of follow eccentric cone bottom surface's recess roll-off, simultaneously, when spacing portion 501 supports the vulcanized ring 13 on the switch iron backing plate 12 downwards, be used for assisting in judging that dysmorphism collude 5's lower part has fallen to the bottom of the hole that switch iron backing plate 12 held the eccentric cone, it is apparent.

Referring to fig. 1 and 3, a washer 8 is arranged at the lower part of the plane bearing 4, the washer 8 is sleeved on the screw rod 2, the washer 8 is made of stainless steel, and is not easy to rust when raining or raining seasons are met, and the plane bearing 4 can smoothly rotate on the washer 8.

Referring to fig. 2 and 6, the outer side of the adjusting cylinder 3 is hexagonal, and the outer side of the adjusting cylinder 3 is matched with the hexagonal inner side of the lower part of the sleeve 9. Besides the adjustable cylinder 3 can be rotated by a wrench, the adjustable cylinder 3 can also be rotated by sleeving the hexagonal part of the adjustable cylinder 3 by the sleeve 9, the upper part of the sleeve 9 is provided with a transverse hole 901, the transverse hole 901 penetrates through the round stick 11 in the use state, and the sleeve 9 is forced by the round stick 11 to drive the adjustable cylinder 3 to rotate, so that the labor is saved.

Referring to fig. 4, the support base 1 includes a support block 102 and a support frame 103, a horizontal through hole 104 is formed in the upper portion of the support frame 103, through which the support block 102 can pass, and a jackscrew hole 105 capable of being connected with a second bolt 15 is formed in a portion of the support frame 103 above the horizontal through hole 104. The relative distance between the two support frames 103 in the horizontal direction can be adjusted to adapt to the position requirements of the operation site.

Referring to fig. 1, a hexagonal handle 10 is fixedly connected to the upper end of the screw 2, and other mechanical devices, such as an electric machine, can be connected through a coupling, and the screw 2 is driven to rotate by the mechanical devices.

The vertical through hole 101 of the screw rod 2 and the supporting seat 1 is not in a threaded connection mode, and the central hole of the cross-shaped plate 6 is not in a threaded connection mode with the screw rod 2, but is sleeved on the screw rod 2. The working principle of the utility model is described below in a preferred embodiment. Before the operation starts, the relative distance between the two support frames 103 is adjusted to a proper position according to the on-site condition of the railway turnout, then the bolts of the top thread holes 105 are screwed down to finish the fixation with the support blocks 102, and for the same turnout, the relative distance between the two support frames 103 is only adjusted once before the replacement of the first eccentric cone at most. When the eccentric cone is replaced, the adjusting cylinder 3 is rotated to enable the screw rod 2 to ascend, the hooking structure is driven to lift, then the supporting seat 1 is placed near a hole for accommodating the eccentric cone on the turnout iron backing plate 12, the position of the supporting seat 1 is finely adjusted to enable the screw rod 2 to be aligned with the inner cavity of the eccentric cone, then the adjusting cylinder 3 is rotated reversely to enable the screw rod 2 to descend, the hooking structure synchronously moves downwards and enters the inner cavity of the eccentric cone, when the limit part 501 of the hooking structure is observed to downwards prop against the vulcanizing ring 13 on the turnout iron backing plate 12, it can be judged that the lower part of the special-shaped hook 5 is descended to the bottom of the hole for accommodating the eccentric cone of the turnout iron backing plate 12, then the cross-shaped plate 6 is twisted, the lower ends of the four special-shaped hooks 5 respectively correspond to one groove on the bottom surface of the eccentric cone, the limit part 501 is rotated reversely until the limit part 501 applies an outward force to the inner side wall of the eccentric cone, the lower end of the special-shaped hook 5 and the groove on the bottom surface of the eccentric cone are clamped, the screw rod 2 is rotated positively, and the screw rod 2 is driven to hook the special-shaped hook structure downwards to prop up the eccentric cone 12 from the upper end of the turnout iron backing plate 12, and the eccentric cone is lifted gradually along with lifting the eccentric cone 12 from the eccentric backing plate 12 to the eccentric cone accommodating hole. The traditional operation tool can take out the eccentric cone and finish replacement, but the force for taking out the eccentric cone cannot be controlled in a certain range, when encountering the eccentric cone with greasy dirt and mud dust, the eccentric cone can be taken out by increasing the acting force, but the eccentric cone deformation is inevitably caused, the force application difference of each person is large, and the eccentric cone is cracked and damaged by particularly suddenly increasing the acting force.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and the foregoing embodiments may be combined appropriately to form new technical solutions; any person skilled in the art, within the scope of the present disclosure, may substitute or change the technical solution obtained according to the technical solution of the present disclosure and its conception, and shall be covered in the scope of the present disclosure.

Claims

1. The eccentric cone extractor of the railway switch comprises a supporting seat (1), and is characterized in that: still including being used for the elevating system with eccentric awl lifting, elevating system includes lead screw (2), vertical through-hole (101) that lead screw (2) run through supporting seat (1), threaded connection has on lead screw (2) to adjust section of thick bamboo (3) and cover is equipped with plane bearing (4) on lead screw (2), plane bearing (4) are located between adjusting section of thick bamboo (3) and vertical through-hole (101), the upper portion swing joint of the bottom of adjusting section of thick bamboo (3) and plane bearing (4), the internal diameter of plane bearing (4) is greater than the diameter of vertical through-hole (101).

2. The eccentric cone extractor for railway turnout according to claim 1, wherein the lower end of the adjusting cylinder (3) is fixedly connected with an annular part (301), and the inner diameter of the annular part (301) is larger than the outer diameter of the plane bearing (4).

3. The eccentric cone extractor for railway turnout according to claim 1 or 2, wherein the lower end of the screw rod (2) is detachably connected with a hooking structure, and a plurality of hooking structures are symmetrically distributed by taking the central axis of the screw rod (2) as the center in the use state.

4. The eccentric cone extractor for railway turnout according to claim 3, wherein the hooking structure comprises four special-shaped hooks (5), the screw rod (2) penetrates through a central hole of the cross-shaped plate (6) to be in threaded connection with the inner side wall of the thimble (7), the four tail ends of the cross-shaped plate (6) are respectively provided with a U-shaped groove (601), and each U-shaped groove (601) is movably connected with the upper part of one special-shaped hook (5) through a first bolt (14) and a nut.

5. The eccentric cone extractor for railway turnout according to claim 4, wherein the middle part of the special-shaped hook (5) is provided with a limiting part (501).

6. The eccentric cone extractor for railway turnout according to claim 1 or 2, characterized in that the lower part of the plane bearing (4) is provided with a gasket (8), and the gasket (8) is sleeved on the screw rod (2).

7. The eccentric taper extractor for railway turnout according to claim 1 or 2, characterized in that the outer side of the adjusting cylinder (3) is hexagonal, and the outer side of the adjusting cylinder (3) is matched with the hexagonal inner side of the lower part of the sleeve (9).

8. The eccentric taper extractor for railway turnout according to claim 1 or 2, wherein the supporting seat (1) comprises a supporting block (102) and a supporting frame (103), a horizontal through hole (104) capable of allowing the supporting block (102) to pass through is formed in the upper portion of the supporting frame (103), and a jackscrew hole (105) capable of being connected with a second bolt (15) is formed in the position, above the horizontal through hole (104), of the supporting frame (103).

9. The eccentric cone puller for railway turnout according to claim 1 or 2, wherein the upper end of the screw rod (2) is fixedly connected with a hexagonal handle (10).

10. The eccentric taper extractor for railway turnout according to claim 7, characterized in that the upper part of the sleeve (9) is provided with a transverse hole (901), and the transverse hole (901) is penetrated by a round stick (11) in the use state.