Self-compensating joint of indication rod

Abstract

The utility model provides an indication rod self-compensation connector which comprises a connector body and a limiting device, a user can connect the connector body with a point switch, after the connector body is installed, the limiting device can be installed on a near-side stock rail or a turnout installation device, when the point switch starts to operate, the connector body can be driven, and the limiting device can be installed on a near-side stock rail or a turnout installation device. Therefore, the joint of the peak-valley matching part of the fixed wave sheet and the indication rod wave sheet is staggered along the oblique angle, the initial peak-valley matching is changed into peak-peak opposite, the indication rod is limited by the limiting device, and when the switch machine drives the joint to operate, the horizontal part of the indication rod is limited by the limiting device, so that the indication rod cannot swing; when the switch rail stretches out and draws back horizontally or expands with heat and contracts with cold due to the temperature of the switch rail, the limiting device swings in the horizontal direction along with stretching out and drawing back of the switch rail, and therefore unnecessary resistance or constraint on the indication rod due to stretching out and drawing back of the switch rail is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway indicating rods, and more specifically, particularly relates to a self-compensating joint for an indicating rod. Background Art

[0002] Turnouts and their switching equipment are important basic equipment for railways, which are directly related to the safety and efficiency of railway operation. Due to their complex working conditions and prone to failure, they are the focus and difficulty of daily maintenance and repair, requiring a large amount of manpower and material resources. Among the signal failures that affect driving safety, turnout failures account for a large proportion.

[0003] At present, my country's high-speed railways generally use large-numbered turnouts No. 42 (No. 30, No. 38), and most of these turnouts are laid at the junction of the connecting line and the two lines, which are relatively far away from the signal maintenance area (or relatively inconvenient transportation). Once a failure occurs in the equipment and is not handled in time, it will affect the operation of the train and cause interference to transportation. The creep (expansion and contraction) of the large-numbered turnout point rail is large, which has a great impact on the switch gap and is easy to get stuck in the gap and cause failure.

[0004] At this time, the staff is required to check whether the switch point rail is in the specified position. This is an indispensable work process for railway switching equipment. Usually, the staff checks the switch machine through the indicating rod. The main inspection method is to require the switch machine inspection block to align the indicating notch. However, during on-site maintenance, it is necessary to frequently adjust the length of the rod according to the situation of the switch machine, so as to adjust the switch machine in different positions, so that the indicating notch of the switch machine can meet the standard requirements.

[0005] However, the design of the point rail is inherently to keep its front end free, which will inevitably cause the point rail to expand and contract with temperature changes. Generally, the maximum expansion and contraction of the tip of a 60kg / m rail large-size turnout point rail can reach ±30mm. Figure 1 , is a schematic diagram of the structure of the indicating rod in the prior art. The existing indicating rod 11 is connected to the circular hole of the joint at the lower part of the flexible joint 12. The flexible joint 12 is connected to the point rail upward through the tip iron 13. When the point rail creeps, the indicating rod 11 will swing accordingly, thereby affecting the size of the gap. When the point rail creeps, the indicating rod will change in length, thereby affecting the change of the gap of the switch machine, resulting in a stuck gap failure. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a self-compensating joint for an indicating rod to solve the technical problems in the prior art that during on-site maintenance, the length of the rod needs to be frequently adjusted according to the condition of the switch machine, and when the point rail creeps, the indicating rod will swing, thereby affecting the size of the gap.

[0007] The purpose and effect of the rod self-compensating joint of the utility model are achieved by the following specific technical means:

[0008] A self-compensating joint for an indicating rod comprises an indicating rod, one end of the indicating rod is provided with a limiting device, the other end is provided with a joint, a joint sleeve is provided between the indicating rod and the joint, an indicating rod corrugated plate is provided between the joint sleeve and the indicating rod, an adjusting component is provided between the indicating rod corrugated plate and the joint sleeve, the indicating rod is threadedly fixed in one end of the indicating rod corrugated plate, and a fixing component is provided in the other end of the indicating rod corrugated plate.

[0009] According to a preferred embodiment, the adjustment assembly includes a fixed wave plate, which is clamped in the joint sleeve, and a disc spring group is provided between the fixed wave plate and the inner side surface of the joint sleeve. One end of the joint is connected to the switch machine, and the other end is provided with a spline groove and a threaded end.

[0010] According to a preferred embodiment, the spline groove and the threaded end both pass through the joint sleeve, the disc spring group and the fixed wave plate, and are clamped in the fixed assembly. The joint is connected and fixed to the fixed wave plate through the spline groove.

[0011] According to a preferred embodiment, the fixing assembly includes a flat washer, a spring washer and a locking nut. The flat washer, the spring washer and the locking nut are sequentially passed through one end of the joint and clamped at the bottom of the fixed wave plate. The corresponding end of the fixed wave plate and the indicating rod wave plate are in a slope step shape that matches each other.

[0012] According to a preferred embodiment, one end of the wave plate of the indicating rod passes through the thread and is clamped in the joint sleeve, and the joint sleeve is provided with an oil filling hole for injecting lubricating oil.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In a hydraulic system or other pressure control system, the length of the indicating rod may need to be automatically adjusted according to the change in pressure to maintain the accuracy and stability of the system. The user can adjust the indicating rod wave plate and the depth of the indicating rod screwed into the joint sleeve to make the peaks and valleys on the fixed wave plate and the indicating rod wave plate match each other, thereby compressing the disc spring group and adjusting its pressure value to a specified range. When the switch machine starts to operate, the pressure will change and drive its joint to rotate the joint sleeve and the fixed wave plate, so that the peak-to-valley matching part of the fixed wave plate and the indicating rod wave plate is shifted along the oblique angle, so that the initial peak-to-valley matching becomes peak-to-peak relative, so that the length of the indicating rod changes. This structure allows the indicating rod to automatically and steplessly compensate for the length of the indicating rod under the set pressure. Compared with the existing indicating rod, the problem of frequent adjustment of the rod length is optimized.

[0015] 2. The limit device is located near the middle of the indicating rod. When fixing the limit device, the user needs to fix it on the near-side basic rail or the turnout installation device. When the point rail expands and contracts due to its temperature change, the limit device will swing horizontally with the expansion and contraction of the point rail. This structure can effectively deal with the expansion and contraction of the point rail due to temperature changes, thereby effectively avoiding unnecessary resistance or constraints on the indicating rod due to the expansion and contraction of the point rail. When the switch machine is running, it will drive its indicating rod. Due to the limitation of its limit device, the indicating rod cannot swing, but can only make a slight rotation around the horizontal axis. This rotation angle can effectively drive the indicating rod wave plate to rotate, so that the fixed wave plate and the indicating rod wave plate are transformed from peak-to-valley matching to peak-to-valley relative, to produce the effect of automatically compensating the length of the indicating rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram showing a rod in the prior art.

[0017] Figure 2 The utility model is a structural schematic diagram showing a rod self-compensating joint.

[0018] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0019] 1. Joint; 2. Joint sleeve; 3. Disc spring set; 4. Fixed wave plate; 5. Indicator rod wave plate; 6. Indicator rod one; 7. Limit device; 8. Anti-loosening nut; 9. Flat washer; 10. Spring washer; 11. Indicator rod two; 12. Flexible joint; 13. Tip iron. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the technical solution of the present invention, but cannot be used to limit the protection scope of the present invention.

[0021] Example:

[0022] like Figure 2 As shown, the utility model provides a self-compensating joint of an indicating rod, including an indicating rod 6, one end of which is provided with a limiting device 7, and the limiting device 7 is close to the middle position of the indicating rod 6. When using the device, the user needs to fix the limiting device 7 on the proximal basic rail or the switch installation device, so that when the point rail expands and contracts due to its temperature change, the limiting device 7 will swing in the horizontal direction with the expansion and contraction of the point rail. This structure can effectively enable the device to cope with the changes of the point rail caused by thermal expansion and contraction, thereby maintaining the stability and reliability of the indicating rod 6, effectively avoiding unnecessary resistance or constraint on the indicating rod 6 due to the expansion and contraction of the point rail, reducing the loss and maintenance cost of the device, and effectively improving the service life of the device.

[0023] When the pointed rail is extended or retracted in the horizontal direction, the horizontal part of the indicating rod 6 will be restricted by the limit device 7, so that it cannot swing and can only make a slight rotation around the horizontal axis, so that it drives the indicating rod wave plate 5, thereby causing the fixed wave plate 4 and the indicating rod wave plate 5 to be misaligned at the fitting point, thereby realizing the function of automatically compensating the length of the indicating rod 6.

[0024] A joint 1 is provided at the other end of the indicating rod 6, a joint sleeve 2 is provided between the joint 1 and the indicating rod 6, a fixed wave sheet 4 is provided inside the joint sleeve 2, a disc spring group 3 is provided between the fixed wave sheet 4 and the inner side of the joint sleeve 2, and the disc spring group 3 can provide automatic compensation and automatic return for the device, and maintain a certain constant pressure. When the external force or displacement changes, the disc spring group 3 pushes the fixed wave sheet 4 through the extrusion force, thereby realizing automatic compensation for its indicating rod 6, which means that when the switch machine is operating, the indicating rod 6 can also maintain a relatively stable position and posture, and when the switch machine stops operating, the disc spring group 3 can automatically return to the original state and restore the indicating rod 6 to its original position. This can ensure that the indicating rod 6 is always in the correct position and will not deviate from the expected track position due to external interference.

[0025] An indicating rod wave sheet 5 is provided between the indicating rod 6 and the joint sleeve 2, and the corresponding ends of the fixed wave sheet 4 and the indicating rod wave sheet 5 are in the shape of a slope step that matches each other. The user can drive the indicating rod wave sheet 5 by rotating the indicating rod 6 and adjust the depth of its screwing into the joint sleeve 2 to make the peaks and valleys of the fixed wave sheet 4 and the indicating rod wave sheet 5 match each other, thereby compressing its disc spring group 3 and adjusting the pressure value to a specified range. When the switch machine starts to operate, the pressure will change and will drive its joint 1 to rotate the indicating rod 6 and the indicating rod wave sheet 5, so that the junction of the peak-to-valley matching parts of the fixed wave sheet 4 and the indicating rod wave sheet 5 is displaced along the oblique angle, so that the initial peak-to-valley matching becomes peak-to-peak relative, so that the length dimension of the indicating rod 6 changes. This structure enables the indicating rod 6 to automatically and steplessly compensate for the length dimension of the indicating rod 6 under the set pressure. Compared with the existing indicating rod 6, the problem of frequent adjustment of the rod length is optimized.

[0026] The indicating rod 6 is threaded and clamped in one end of the indicating rod wave plate 5. The other end of the indicating rod wave plate 5 is provided with a flat washer 9, a spring washer 10 and a lock nut 8. One end of the joint 1 is connected to the switch machine, and the other end is provided with a spline groove and a threaded end. The spline groove and the threaded end both pass through the joint sleeve 2 and the disc spring group 3 and the fixed wave plate 4, and are clamped in the flat washer 9, the spring washer 10 and the lock nut 8. The joint 1 is fixedly connected to the fixed wave plate 4 through the spline groove. The spline groove provides highly accurate positioning for the connection between the joint 1 and the fixed wave plate 4. When the joint When the switch machine 1 is driven, the spline groove will rotate accordingly, thereby controlling the position of the fixed wave plate 4, thereby controlling the pressure value of the disc spring group 3, so that the disc spring group 3 can provide automatic compensation and automatic return for the device, and the flat washer 9 and the spring washer 10 and the anti-loosening nut 8 will limit and fix the fixed wave plate 4. The device is used on the railway. The flat washer 9 and the spring washer 10 and the anti-loosening nut 8 can effectively ensure the stability and reliability between the connecting parts, and effectively reduce the loosening or falling off caused by vibration or other external forces.

[0027] One end of the indicating rod wave piece 5 is threaded and clamped in the joint sleeve 2. When the switch machine runs and drives the joint 1, the joint sleeve 2 will rotate along the thread on the indicating rod wave piece 5, so as to automatically compensate for the length of its indicating rod 6. When the limiting device 7 drives the indicating rod 6 to rotate due to the thermal expansion and contraction of the point rail, the indicating rod wave piece 5 will rotate. Through the threaded structure, the device can adapt to the automatic compensation required in a variety of different situations.

[0028] An oil filling hole is provided on the joint sleeve 2. When the user maintains the device, the lubricating oil can be injected into the interior of the device through the oil filling hole to maintain lubrication between the components, reduce friction and wear, and extend the service life of the device. The oil filling hole effectively reduces the time for maintaining the device, making the maintenance process more convenient and efficient.

[0029] The specific usage and function of this embodiment are as follows:

[0030] When the user uses the device, he can connect the device to the switch machine through the joint 1, and then fix the limiting device 7 on the near-side basic rail or the turnout installation device. When the switch machine starts to run, it will drive the joint 1, thereby driving the joint sleeve 2 to rotate along the thread on the indicating rod wave piece 5, so that the fixed wave piece 4 fixed in the joint sleeve 2 and the peak-to-valley matching part of the indicating rod wave piece 5 are displaced along the oblique angle, so that the initial peak-to-valley matching becomes peak-to-peak relative, so that the length dimension of the indicating rod 6 changes, and the limiting device 7 will limit the indicating rod 6 when the structure is operating, so as to prevent the indicating rod 6 from swinging. This structure allows the indicating rod 6 to automatically and steplessly compensate for the length dimension of the indicating rod 6 under the set pressure. When the point rail expands and contracts due to thermal expansion and contraction, the limit device 7 will swing horizontally with the expansion and contraction of the point rail. This structure can effectively allow the device to cope with the changes of the point rail caused by thermal expansion and contraction, thereby maintaining the stability and reliability of the indicating rod 6, effectively avoiding unnecessary resistance or constraints on the indicating rod 6 due to the expansion and contraction of the point rail, reducing the loss and maintenance cost of the device, and effectively improving the service life of the device. When the limit device 7 swings horizontally due to the thermal expansion and contraction of the point rail, it will drive the indicating rod 6 to rotate, thereby driving the indicating rod wave plate 5 to automatically compensate for the change in its position. Through this structure, the device can adapt to the automatic compensation required in a variety of different situations.

[0031] The basic principle and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A self-compensating joint for a rod, characterized in that: The invention comprises an indicating rod (6), one end of which is provided with a limiting device (7), and the other end is provided with a joint (1), a joint sleeve (2) is provided between the indicating rod (6) and the joint (1), an indicating rod wave sheet (5) is provided between the joint sleeve (2) and the indicating rod (6), an adjusting component is provided between the indicating rod wave sheet (5) and the joint sleeve (2), the indicating rod (6) is threadedly fixed in one end of the indicating rod wave sheet (5), and a fixing component is provided in the other end of the indicating rod wave sheet (5).

2. A self-compensating joint for a display rod according to claim 1, characterized in that: The adjustment component comprises a fixed wave plate (4), the fixed wave plate (4) being clamped in the joint sleeve (2), a disc spring plate group (3) being provided between the fixed wave plate (4) and the inner side surface of the joint sleeve (2), one end of the joint (1) being connected to the switch machine, and the other end being provided with a spline groove and a threaded end.

3. A self-compensating joint for a display rod according to claim 2, characterized in that: The spline groove and the threaded end both pass through the joint sleeve (2), the disc spring group (3) and the fixed wave plate (4), and are clamped in the fixed component. The joint (1) is connected and fixed to the fixed wave plate (4) through the spline groove.

4. A self-compensating joint for a display rod according to claim 3, characterized in that: The fixing assembly comprises a flat washer (9), a spring washer (10) and a locking nut (8); the flat washer (9), the spring washer (10) and the locking nut (8) are sequentially passed through one end of the joint (1) and clamped at the bottom of the fixing wave sheet (4); the corresponding ends of the fixing wave sheet (4) and the indicating rod wave sheet (5) are in the shape of a sloped step that matches each other.

5. The self-compensating joint for a display rod according to claim 1, characterized in that: One end of the indicating rod wave sheet (5) passes through the thread and is clamped in the joint sleeve (2); the joint sleeve (2) is provided with an oil injection hole for injecting lubricating oil.

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