CN202228469U - Hydraulic switch-over locking device - Google Patents

Hydraulic switch-over locking device Download PDF

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Publication number
CN202228469U
CN202228469U CN2011203190207U CN201120319020U CN202228469U CN 202228469 U CN202228469 U CN 202228469U CN 2011203190207 U CN2011203190207 U CN 2011203190207U CN 201120319020 U CN201120319020 U CN 201120319020U CN 202228469 U CN202228469 U CN 202228469U
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CN
China
Prior art keywords
locking
cylinder body
actuating strut
hydraulic cylinder
groove
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011203190207U
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Chinese (zh)
Inventor
丁召荣
王向庭
谢明军
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Xian Railway Signal Co Ltd
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Xian Railway Signal Co Ltd
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Filing date
Publication date
Application filed by Xian Railway Signal Co Ltd filed Critical Xian Railway Signal Co Ltd
Priority to CN2011203190207U priority Critical patent/CN202228469U/en
Application granted granted Critical
Publication of CN202228469U publication Critical patent/CN202228469U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a switch-over and locking device of a railway switch, in particular to a hydraulic switch-over locking device used for switch-over and locking of the railway switch, reflecting switch states and using hydraulic pressure as motive power. The hydraulic switch-over locking device is characterized by comprising a casing (8), an axial hole is arranged on the casing (8), a hydraulic cylinder body (9) is arranged on the axial hole, the end socket of the hydraulic cylinder body (9) is in tandem connection with a switch-over locking unit, a radial groove is respectively arranged at two ends of the casing (8), a thread fastener (10) compresses a spring set (6), the external diameter of a squeeze-dropping block (7) is connected with the radial grooves of the casing (8), and the hydraulic cylinder body (9) and the switch-over locking unit are fixed in the casing (8). The hydraulic switch-over locking device is small in busy line space, convenient in installation and capable of being used for switching and reflecting the switch states.

Description

A kind of hydraulic pressure conversion locking closure
Technical field
The utility model relates to conversion, the locking device of railway switch, especially for conversion, the locking of railway switch, and reaction track switch state, be a kind of hydraulic pressure conversion locking closure of power with hydraulic pressure, also be applicable to city rail traffic line.
Background technique
The switch machine of existing conversion track switch all is to be the service object with the common railway, and its busy line space is big, installs, changes difficulty, and when being used for city rail traffic, the restriction of installing space can strengthen engineering work load, even produces the problem that can't install.
Summary of the invention
The purpose of the utility model provides a kind of hydraulic pressure conversion locking closure that a kind of busy line space is little, easy for installation, can be used for changing and reacting the track switch state.
The technological scheme of the utility model is that a kind of hydraulic pressure conversion locking closure is characterized in that: comprise housing; Housing has an axial bore, and hydraulic cylinder body is arranged in the axial bore, serial connection conversion locking unit, hydraulic cylinder body termination; There is radial groove at the housing two ends; The threaded fastener compression spring set is squeezed and to be taken off the piece external diameter and link to each other with the radial groove of housing, hydraulic cylinder body and change the locking unit and be fixed in the housing.
Described conversion locking unit comprises locking steel bushing, actuating strut, piston rod, two groups of steel ball groups, and the locking steel bushing is socketed on the actuating strut, and locking steel bushing external diameter has screw thread, and threaded fastener and locking steel bushing are through being threaded.
Piston rod extends in the actuating strut by stretching out in the hydraulic cylinder body, and actuating strut is the cavity body structure, and actuating strut is embedded in two groups of steel ball groups, and there is boss the piston rod extension, boss both sides distribution groove.
Respectively there are arc groove or dovetail groove in described locking steel bushing two ends, and the arc groove at two ends or dovetail groove be the drawing in locked position and stretch out locked position of respective action bar respectively.
Described conversion locking unit is two covers, is arranged in the two ends of hydraulic cylinder body, the two ends symmetric arrangement.
Described conversion locking unit is a cover, is arranged in a termination of hydraulic cylinder body.
Described piston rod extension boss external diameter equates with actuating strut cavity internal diameter; Formation is slidingly matched; Diameter of the steel ball is equal to or less than arc groove or the groove depth sum of dovetail groove on actuating strut wall thickness and the locking steel bushing, and diameter of the steel ball also is equal to or less than the groove depth sum of actuating strut wall thickness and piston rod extension groove.
The locking working principle and the advantage of the utility model: the definition with away from hydraulic cylinder body for stretching out, near hydraulic cylinder body for drawing in.Actuating strut is in and stretches out locking states; When piston rod is drawn in; Actuating strut begins release and after release, draws in piston rod; When moving on the locking steel bushing near hydraulic cylinder body one side dovetail groove or arc groove place near the steel ball group of hydraulic cylinder body one side, actuating strut is drawn in and is put in place and begin locking, and piston rod continues to draw in a segment distance and keeps certain locking amount.So far actuating strut is in and draws in locking, has accomplished and has stretched out locking to the conversion of drawing in locking; Be at actuating strut and draw in locking states; When piston rod stretches out; Actuating strut begins release and after release, stretches out with piston rod, and when moving on the locking steel bushing away from the dovetail groove of hydraulic cylinder body one side or arc groove place again away from the steel ball group of hydraulic cylinder body one side, actuating strut stretches out and puts in place and begin locking; Piston rod continues to stretch out a segment distance and keeps certain locking amount, has accomplished actuating strut like this by drawing in locking to a release, conversion, the locking process of stretching out the locking states conversion.This structure busy line space is little, easy for installation, can be used for changing, locking and react the hydraulic pressure conversion locking closure of track switch state.
Below in conjunction with embodiment's accompanying drawing the utility model is further specified.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 A is that conversion locking unit, right side stretches out locking, and the locking schematic representation is drawn in conversion locking unit, left side;
Fig. 2 B be piston rod to left movement, both sides conversions locking unit begins the release schematic representation;
Fig. 2 C be piston rod to left movement, promote the both sides actuating strut all to the left movement schematic representation;
Fig. 2 D is that the both sides actuating strut moves left to put in place and gets into the locking schematic representation;
Fig. 3 is the utility model embodiment 2 structural representations.
Among the figure: 1, actuating strut; 2, seal ring; 3, steel ball group; 4, locking steel bushing; 5, piston rod; 6, cluster spring; 7, the crowded piece that takes off; 8, housing; 9, hydraulic cylinder body; 10, threaded fastener.
Embodiment
A kind of hydraulic pressure conversion locking closure comprises housing 8, and housing 8 has an axial bore; Place hydraulic cylinder body 9 in the axial bore; Serial connection conversion locking unit, hydraulic cylinder body 9 terminations, there is radial groove at housing 8 two ends, threaded fastener 10 compression spring set 6; Cluster spring 6 makes to squeeze to take off and closely links to each other with the radial groove of housing 8 after piece 7 external diameters rise greatly, and hydraulic cylinder body 9 is fixed in the housing 8 through squeezing to take off piece 7, cluster spring 6, threaded fastener 10 and change the locking unit.
Conversion locking unit comprises locking steel bushing 4, actuating strut 1, piston rod 5, two groups of steel ball groups 3, and locking steel bushing 4 is socketed on the actuating strut 1, and locking steel bushing 4 external diameters have screw thread, and threaded fastener 10 and locking steel bushing 4 are through being threaded.Piston rod 5 extends in the actuating strut 1 by stretching out in the hydraulic cylinder body 9, and actuating strut 1 is the cavity body structure, and actuating strut 1 has two groups of steel bead grooves, and there is boss piston rod 5 extensions, and the boss both sides are distributed with groove.At locking steel bushing 4 two ends arc groove or dovetail groove are arranged respectively, the arc groove at two ends or dovetail groove be the drawing in locked position and stretch out locked position of respective action bar 1 respectively.
As shown in Figure 1, conversion locking unit is two covers, is arranged in the two ends of hydraulic cylinder body 9, the two ends symmetric arrangement.Only drawn the structure of an end among the figure.
The boss external diameter of piston rod 5 extensions equates that with actuating strut 1 cavity internal diameter formation is slidingly matched.Diameter of the steel ball is equal to or less than arc groove or the groove depth sum of dovetail groove on actuating strut 1 wall thickness and the locking steel bushing 4.The diameter of steel ball also is equal to or less than the groove depth sum of actuating strut 1 wall thickness and piston rod 5 extension grooves.The boss of piston rod 5 extensions is fixed on steel ball group 3 on the locking steel bushing 4 away from the arc groove of hydraulic cylinder body 9 one sides or the dovetail groove time, and actuating strut 1 is in and stretches out locked position.The boss of piston rod 5 extensions is fixed on steel ball group 3 on the locking steel bushing 4 near in the arc groove of hydraulic cylinder body 9 one sides or the dovetail groove time, and actuating strut 1 is in draws in locked position.Actuating strut 1 is sealed by seal ring 2 in the port of locking steel bushing 4 away from hydraulic cylinder body 9 with locking steel bushing 4.
Two groups of steel ball groups 3 before and after actuating strut 1 is embedded in; Front or rear steel ball group 3 is promoted by the boss of piston rod 5 extensions; And when driving actuating strut 1 and moving to dovetail groove or the arc groove place of locking steel bushing 4 ends together; Corresponding steel ball group 3 gets into the dovetail groove or the arc groove of locking steel bushing 4, and can not deviate from by the boss of piston rod 5 extensions is spacing, so just can actuating strut 1 and locking steel bushing 4 be locked in together.When the boss of piston rod 5 extensions moved between two groups of steel ball groups 3, the locking of actuating strut 1 and locking steel bushing 4 was removed, and the boss of piston rod 5 extensions promotes steel ball group 3 and actuating strut motion, thereby drives track switch., steel ball group 3 begins to get into locking states when moving to dovetail groove or the arc groove place of locking steel bushing 4 opposite sides again.
In the utility model; Hydraulic cylinder body 9 and conversion locking unit take off piece 7, cluster spring 6, threaded fastener 10 and are connected in the housing 8 through squeezing; If cluster spring 6 is provided with certain stiffness coefficient and pretightening force on request; Make to squeeze and take off piece 7 and can under certain responsive to axial force, diminish and from the groove of housing 8, throw off by external diameter, and then hydraulic cylinder body 9 and conversion locking unit can throw off with housing 8, can squeeze type conversion locking closure so exactly; Spring rate is very big or use rigid member to substitute cluster spring 6, then changes the locking unit for can not squeeze type.Cluster spring 6 can be single spring, also can be one group of spring or dish spring or other elasticity components and parts.But a switch-and-lock movement is arranged in hydraulic cylinder body 9 both sides all tandem, also can only arrange a switch-and-lock movement in hydraulic cylinder body 9 one side tandems, all can accomplish conversion, locking function.
The conversion of hydraulic cylinder body 9 both sides of the utility model equal tandem layout switch-and-lock movement, locking working principle are shown in Fig. 2 A, 2B, 2C, 2D, and right side actuating strut 1 is in and stretches out locking states, shown in Fig. 2 A.When the boss that moves to its extension left when piston rod 5 was between two groups of steel ball groups 3 on the same actuating strut 1,1 release of left and right sides actuating strut was shown in Fig. 2 B.After the release actuating strut 1 with piston rod 5 to left movement, shown in Fig. 2 C.When the steel ball group 3 in left side moves to left side arc groove or the dovetail groove place of locking steel bushing 4; Actuating strut 1 puts in place and stop motion; Piston rod 5 continues to left movement, crosses into steel ball group 3 one segment distances of arc groove or dovetail groove until boss, produces certain locking degree of depth; So far accomplish the process of release, conversion, locking, shown in Fig. 2 D.
Begin from state shown in Fig. 2 D, when piston rod 5 moves right and the aforementioned process contrary.Accomplish a release, conversion, locking process so again.
Fig. 3 is the structural drawing that has only a cover conversion locking unit, and this mode of execution is left end or the right-hand member that conversion locking unit is arranged in hydraulic cylinder body 9.

Claims (6)

1. a hydraulic pressure is changed locking closure, and it is characterized in that: comprise housing (8), housing (8) has an axial bore; Hydraulic cylinder body (9) is arranged in the axial bore; Serial connection conversion locking unit, hydraulic cylinder body (9) termination, there is radial groove at housing (8) two ends, threaded fastener (10) compression spring set (6); Squeeze and to take off piece (7) external diameter and link to each other, hydraulic cylinder body (9) and change the locking unit and be fixed in the housing (8) with the radial groove of housing (8).
2. a kind of hydraulic pressure conversion locking closure according to claim 1; It is characterized in that: described conversion locking unit comprises locking steel bushing (4), actuating strut (1), piston rod (5), two groups of steel ball groups (3); Locking steel bushing (4) is socketed on the actuating strut (1); The external diameter of locking steel bushing (4) has screw thread, and threaded fastener (10) and locking steel bushing (4) are through being threaded; Piston rod (5) extends in the actuating strut (1) by stretching out in the hydraulic cylinder body (9), and actuating strut (1) is the cavity body structure, and actuating strut (1) is embedded in two groups of steel ball groups (3), and there is boss piston rod (5) extension, and the boss both sides are distributed with groove.
3. a kind of hydraulic pressure conversion locking closure according to claim 2, it is characterized in that: respectively there are arc groove or dovetail groove in described locking steel bushing (4) two ends, and the arc groove at two ends or dovetail groove are distinguished drawing in locked position and stretching out locked position of respective action bar (1).
4. a kind of hydraulic pressure conversion locking closure according to claim 1, it is characterized in that: described conversion locking unit is two covers, is arranged in the two ends of hydraulic cylinder body (9), the two ends symmetric arrangement.
5. a kind of hydraulic pressure conversion locking closure according to claim 1, it is characterized in that: described conversion locking unit is a cover, is arranged in a termination of hydraulic cylinder body (9).
6. a kind of hydraulic pressure conversion locking closure according to claim 2; It is characterized in that: the boss external diameter of described piston rod (5) extension equates with the internal diameter of actuating strut (1) cavity; Formation is slidingly matched; Diameter of the steel ball is equal to or less than arc groove or the groove depth sum of dovetail groove on actuating strut (1) wall thickness and the locking steel bushing (4), and diameter of the steel ball also is equal to or less than the groove depth sum of actuating strut (1) wall thickness and piston rod (5) extension groove.
CN2011203190207U 2011-08-29 2011-08-29 Hydraulic switch-over locking device Expired - Lifetime CN202228469U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203190207U CN202228469U (en) 2011-08-29 2011-08-29 Hydraulic switch-over locking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203190207U CN202228469U (en) 2011-08-29 2011-08-29 Hydraulic switch-over locking device

Publications (1)

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CN202228469U true CN202228469U (en) 2012-05-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203190207U Expired - Lifetime CN202228469U (en) 2011-08-29 2011-08-29 Hydraulic switch-over locking device

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452950A (en) * 2013-09-18 2013-12-18 沈阳飞机工业(集团)有限公司 Hydraulic combination cylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452950A (en) * 2013-09-18 2013-12-18 沈阳飞机工业(集团)有限公司 Hydraulic combination cylinder

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Granted publication date: 20120523

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