WO2015043541A1

WO2015043541A1 - Point machine

Info

Publication number: WO2015043541A1
Application number: PCT/CN2014/087960
Authority: WO
Inventors: 杨超; 陈立; 何新鹏; 韩锐
Original assignee: 西门子信号有限公司; 杨超; 陈立; 何新鹏; 韩锐
Priority date: 2013-09-30
Filing date: 2014-09-30
Publication date: 2015-04-02

Abstract

A point machine (100) comprises at least one test rod (130) and an action rod (110), and further comprises a planetary gear mechanism (120). The planetary gear mechanism (120) is disposed on the action rod (110), and two sides of the action rod (110) and the planetary gear mechanism (120) are each provided with a space (106, 108) for accommodating the at least one test rod (130). Test rods (130) of a left-hand version and a right-hand version of the point machine (100) are symmetrically disposed relative to the action rod (110), and when the direction needs to be changed, it is only required to adjust the position of the test rod (130) from one side of the action rod (110) to the other side thereof, thereby making it more convenient to achieve direction change of the point machine (100); and further, the total length of the point machine (100) is shortened, and the adaptability of the point machine (100) is improved.

Description

Switch machine

Technical field

The invention relates to a railway control device, in particular to a switch machine.

Background technique

The switch machine is the actuator of the ballast control system for switching, locking the position of the ballast rail or the core rail, and indicating and supervising the position and state of the ballast tip rail or the core rail in the interlocking zone.

FIG. 1 is a schematic view showing the construction of a conventional switch machine 10. In the switch 10, the motor 12 drives the ball screw mechanism 14, thereby moving the action lever 16 in the left-right direction in the drawing (as indicated by an arrow A in the figure). The movement of the action rod 16 in turn pushes the tip rail to effect a switch. The function of the detecting lever 19 is to indicate or monitor whether the switch machine action is in place. For example, conventionally, the detection lever 19 has a sensor (e.g., a mechanically activated contact switch device). When the action lever of the switch machine is in place, the mechanical part on the detection lever 19 gives an indication of the position (for example, a resiliently supported metal ball provided on the detection rod is trapped in a predetermined gap), and then the contact switch is turned on ( Or disconnected) to give an indication of the presence of the electron.

Fig. 1 shows a schematic view of the left-mounted state, that is, the switch 10 is disposed on the left side of the switch. As shown in FIG. 1, the detecting lever 19 is mounted in the detecting lever cover cylinder 18, and the operating lever 16 is mounted in the operating lever cover cylinder 17. In the figure, the detecting lever cover cylinder 18 is mounted above the operating lever cover cylinder 17 in the drawing. If it is in the right-mounted state, that is, the switch machine is installed on the right side of the switch, the action lever cover cylinder 17, the test lever cover cylinder 18 and the detection lever 19 of the switch machine need to be reassembled to realize the reverse direction.

Fig. 2 is a schematic view showing the configuration of a conventional left-loading state of an electro-hydraulic (hydraulic) switch machine 20. In FIG. 2, the motor 22 drives the oil pump 24, and the action rod 28 is moved by the cylinder group 26 and the auxiliary cylinder group 27. Obviously, for the switch machine shown in Fig. 2, the installation direction of the conversion switch machine also needs to be renewed. Assembly.

Summary of the invention

The present invention provides a novel switch machine that can be easily adapted to a left or right mounted state.

According to an embodiment of the present invention, a switch machine according to the present invention includes at least one detecting lever and an action lever, the switch machine including a planetary gear mechanism, the planetary gear mechanism being disposed above the action lever A space for accommodating the detecting rod is respectively provided on both sides of the action lever and the planetary gear mechanism. Preferably, the planetary gear mechanism includes a large gear, a planetary gear meshed therewith, a swing arm whose one end is fixedly coupled to the shaft of the planetary gear, and a drive shaft pivotally coupled to the other end of the swing arm.

According to another embodiment of the present invention, a switch machine according to the present invention includes: a motor, an action lever, and a planetary gear mechanism, the planetary gear mechanism being coupled to the motor and the action lever, and the action a pole is stacked to drive the movement of the action bar along the longitudinal direction of the action bar; the switch machine further includes first and second spaces disposed on both sides of the action bar in a lateral direction; at least one detection A rod, each of which can be accommodated in either of the first and second spaces. Preferably, the first and second spaces are symmetrically disposed with respect to the action bar in a lateral direction of the action bar. More preferably, the action lever is disposed at a center of the switch mounting position in the lateral direction. Particularly preferably, the detection rods housed in the first and/or second space are connected to the same mechanically activated contact switch device.

Preferably, the planetary gear mechanism includes: a large gear having an outer ring gear and an inner ring gear, the outer ring gear being driven by the motor; a planetary gear, the same as the sun gear The inner ring gear is meshed, the planetary shaft of the planetary gear is coupled to the large gear, and is driven by the large gear; a swing arm has one end fixedly connected to the planetary shaft of the planetary gear, and the other end The pivoting of a drive shaft drives the action lever.

The technical effect of the invention is that the switch machine has reserved detection rods for the left-mounted type and the right-mounted type. Installation space. In the reversing direction, it is only necessary to pull the detecting rod out of one side space of the operating rod and insert it into the receiving space on the other side. Therefore, the solution makes the commutation installation of the switch machine more convenient, and reduces the total length of the switch machine, and improves the adaptability of the switch machine to different installation requirements. Furthermore, the two spaces for accommodating the detection levers may preferably be arranged symmetrically with respect to the action bars, which may facilitate the arrangement of the interior of the switch and the consistency of the action of the test bars. In addition, the switch can provide a set of contact switch devices that can be connected to test bars placed in different spaces on either side.

DRAWINGS

Figure 1 is a schematic view of a conventional switch machine.

2 is a schematic view of another conventional switch machine.

Figure 3 is a schematic illustration of a switch machine in accordance with one embodiment of the present invention.

4 is a schematic view of a planetary gear mechanism in the example of the switch machine shown in FIG.

Reference numeral

10 turn machine 12 motor 14 ball screw mechanism 16 action bar

17 action rod cover tube 18 detection rod cover tube 19 detection rod 20 turn machine

22 motor 24 oil pump 26 cylinder group 27 auxiliary cylinder group

28 action bar 100 turn machine 102

shell

106, 108 space

110 action rod assembly 120 planetary gear mechanism 140 planetary gear set 141 large gear

142 planetary gear 143 planetary shaft 144 swing arm 145 drive shaft

130 detection lever 150 motor

detailed description

The invention is described below in conjunction with the preferred embodiments of the invention. The following description cites More specific details. However, those skilled in the art will appreciate that the present invention may be practiced without some or all of these details. In some cases, well-known techniques are not described to avoid unnecessary confusion.

FIG. 3 shows a schematic configuration of a switch machine 100 in accordance with an embodiment of the present invention. The outer casing 102 of the switch 100 forms a space for housing the various mechanisms of the switch. As shown in FIG. 3, the lever assembly 110 is disposed within the housing 102, for example, preferably, centrally.

The planetary gear mechanism 120 overlaps the action bar assembly 110. For example, in the example shown in Figures 3 and 4, the planetary gear mechanism 120 is placed above the action bar assembly 110, i.e., the exit face orientation of Figure 3. The planetary gear mechanism 120 can drive the motion rod assembly 110 to linearly move in its longitudinal direction under the urging of, for example, a motor, for example, reciprocating linear motion in the left and right direction in the plane of the paper in FIG. Further, in the vertical direction in the paper surface of FIG. 3, on both sides of the action bar 110 (for example, the upper and lower sides in the paper surface of FIG. 3, or both sides in the lateral direction of the action bar)

Spaces

106 and 108 are provided for accommodating the detection rod 130, as indicated by the dashed lines in FIG. In one example, the

spaces

106 and 108 are symmetrically disposed relative to the action bar.

Figure 3 shows that detector bars can be provided in both

spaces

106 and 108. The detection levers respectively placed in the space 106 and the space 108 can be connected to the same contact switch device (for example, a mechanically triggered contact switch) to report the in-position condition of the switch machine action. However, as will be appreciated by those skilled in the art, in general, only one detection lever needs to be provided, so that a detection lever can be provided only in one of the spaces.

FIG. 4 shows a schematic view of the planetary gear mechanism 120. A transfer with a planetary gear mechanism is disclosed in the patent application filed by the same applicant, which is filed at the same time as the present application, and the assignee is the applicant's patent application file (which requires a unique Chinese priority CN 201310465802.5). The entire contents of this patent application are hereby incorporated by reference.

In FIG. 4, the planetary gear mechanism 120 includes two sets of planetary gear sets 140, but may also include only one Planetary gear set 140. The planetary gear set 140 includes, for example, a large gear 141 and a planetary gear 142. The bull gear 141 has an inner ring gear and an outer ring gear. The planet gears 142 mesh with the inner ring gear of the large gear 141, which acts as a sun gear. The axis of the planetary gear 142 is a planetary shaft 143. The planet shaft 143 is pivotally coupled to the bull gear 141, and the revolution of the planet shaft 143 is synchronized with the large gear 141. The planet shaft 143 is also fixedly coupled to one end of a swing arm 144. The other end of the swing arm 144 is pivotally connected to a drive shaft 145. The drive shaft 145 is used to push the action rod assembly 110 to move. Here, the revolution speed of the planetary gear 142, the rotational speed of the planetary gear 142, and the distance from the drive shaft 145 to the planetary shaft are designed such that the drive shaft 145 moves in a straight line. In the example shown in FIG. 4, the two planetary gear sets 140 preferably share a single drive shaft 145.

The drive shaft 145 is movably coupled to the actuating lever 110. The outer ring gear of the large gear 141 is connected to the motor 150 and is rotated by the motor. Those skilled in the art will appreciate that a gearbox and gears may also be provided between the outer ring gear of the bull gear 141 and the motor 150.

The invention has been described in detail above with reference to the specific embodiments. However, those skilled in the art will appreciate that there are some modifications and equivalents within the scope of the invention. Therefore, the claims of the present invention should be construed as including all such modifications and equivalents.

Claims

A switch machine comprising at least one detecting rod and one action rod, characterized in that the switch machine comprises a planetary gear mechanism, the planetary gear mechanism being arranged above the action rod, at the action rod and the A space for accommodating the detecting rod is respectively disposed on both sides of the planetary gear mechanism.
The switch machine according to claim 1, wherein the planetary gear mechanism includes a large ring gear, a planetary gear meshed with the inside of the large ring gear, and a swing arm whose one end is pivotally coupled to the shaft of the planetary gear. And a drive shaft pivotally coupled to the other end of the swing arm.
A switch machine, including:

a motor (150);

a action bar (110);

a planetary gear mechanism (120) coupled to the motor (150) and the actuating lever (110) and superposed with the actuating lever (110) for driving the actuating lever (110) along The longitudinal movement of the action rod;

First and second spaces (106, 108) disposed on both sides in a lateral direction of the action bar (110);

At least one detection rod (130), each of the detection rods (130) being receivable in any of the first and second spaces (106, 108).
The switch machine according to claim 3, wherein the first and second spaces (106, 108) are symmetrically disposed with respect to the action bar (110) in a lateral direction of the action bar (110).
The switch machine according to claim 3, wherein the action lever (110) is disposed at a center of symmetry of the switch mounting position in a lateral direction thereof.
The switch machine of claim 3 wherein said planetary gear mechanism (120) comprises:

a large gear (141) having an outer ring gear and an inner ring gear, the outer ring gear being in the motor (150) Drive down;

a planetary gear (142) that meshes with the ring gear that functions as a sun gear, a planetary shaft of the planetary gear (142) is coupled to the large gear (141), and the large gear (141) ) to drive the next movement;

a swing arm (144) having one end fixedly coupled to the planet shaft of the planetary gear (142) and the other end pivotally coupled to a drive shaft (145), the drive shaft (145) driving the action rod (110) );

Wherein the planetary gear mechanism (120) is designed such that the drive shaft (128) moves linearly.
A switch machine according to claim 3, wherein the detection lever (130) housed in the first and/or second space (106, 108) is connected to the same mechanically triggered contact switch device.