Switch machine support damper base

Abstract

The utility model discloses a kind of switch machine support shock-absorbing seats. It includes the support assembly as bottom support and the shock-absorbing assembly cooperation installation with support assembly, shock-absorbing assembly includes the upper top cover with the accommodating cavity, the main shaft fixedly installed with upper top cover and the lower top cover of accommodating cavity opening end in upper top cover, the lower end of main shaft is inserted into accommodating cavity and is sleeved with the elastic element pressed on the lower top cover upper end surface to make the elastic floating structure between upper top cover and lower top cover, support assembly is cooperation installation with lower top cover and as bottom support. Advantage is: ingeniously utilize the shock absorption of elastic element and the support adjustable structure of support assembly, the elasticity of shock-absorbing assembly is not changed by the change of support height, after installation is completed, shock-absorbing assembly part and support assembly are flexibly connected, reduce the influence of support vibration to support assembly, compared with traditional switch machine support shock-absorbing seat, damping capacity is more stable and reliable.

Description

Technical Field

[0001] This utility model relates to a vibration damping structure for a switch machine support, specifically a vibration damping seat for a switch machine support. Background Technology

[0002] For switch machines, due to their working environment, they are subjected to very large and frequent vibrations all year round. The existing support bases are basically rigid connections, which have poor vibration reduction effect. In order to ensure the reliability of their operation, there are also ways to design vibration reduction structures at the support base. Generally speaking, rubber vibration damping pads are added to the upper and lower ends of the support base to achieve the vibration reduction effect. This structural design improves the vibration reduction effect to a certain extent, but there is a problem of rubber aging, which leads to a decrease in vibration reduction function. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a switch machine support vibration damping seat with a reasonable structural design, more stable and reliable vibration damping capacity, and thus effectively improve the vibration damping effect.

[0004] To solve the above-mentioned technical problems, the present invention provides a switch machine support vibration damping seat, which includes a support assembly as a bottom support and a vibration damping assembly installed in conjunction with the support assembly. The vibration damping assembly includes an upper cover with a mounting cavity, a main shaft fixedly installed with the upper cover, and a lower cover installed at the opening end of the mounting cavity of the upper cover. The lower end of the main shaft extends into the mounting cavity and is fitted with an elastic element that presses against the upper surface of the lower cover, thereby forming an elastic floating structure between the upper cover and the lower cover. The support assembly is installed in conjunction with the lower cover and serves as a bottom support.

[0005] The lower top cover includes an external hexagonal screw-in section and a guide section connected to the upper end of the external hexagonal screw-in section. The guide section of the lower top cover extends into the opening end of the mounting cavity of the upper top cover.

[0006] The lower top cover also has a guide cavity that runs vertically through it, and the support assembly has an inner cavity. The main shaft extends into the inner cavity through the guide cavity of the lower top cover to satisfy the vertical floating stroke of the main shaft.

[0007] The support assembly includes a base and a connecting post with external threads on the base. The guide cavity of the lower cover has an internal thread section. The external thread of the connecting post is screwed into the internal thread section of the lower cover and can adjust the spring force.

[0008] The main shaft is provided with an annular groove located on the upper half of the lower top cover, and a retaining ring for cooperating with the lower top cover is placed in the annular groove.

[0009] An axially arranged anti-reverse groove is formed on the circumferential surface of the connecting column, and an anti-reverse bolt that mates with the anti-reverse groove is screwed onto the outer hexagonal screw joint section of the lower top cover.

[0010] The top cover is provided with a screw thread hole, and the main shaft is provided with a main shaft thread section that mates with the screw thread hole.

[0011] The outer circumferential surface of the lower top cover is provided with marking lines for marking the compressive elastic force.

[0012] The base has a bowl-shaped structure.

[0013] The bottom of the base is provided with a vibration-damping rubber pad.

[0014] The elastic element is a spring.

[0015] The advantages of this utility model are: (1) By setting up a support component and a vibration damping component that is installed in conjunction with the support component, and extending the lower end of the main shaft into the mounting cavity, while the main shaft is fitted with an elastic element that presses against the upper end face of the lower top cover, an elastic floating structure is formed between the upper and lower top covers. This cleverly utilizes the vibration damping of the elastic element and the adjustable support structure of the support component, so that the elastic force of the vibration damping component does not change with the change of the support height. After installation, the vibration damping component is flexibly connected to the support component, reducing the impact of the support vibration on the support component. Compared with the traditional switch machine support vibration damping seat, the vibration damping capacity is more stable and reliable.

[0016] (2) An annular groove is provided on the spindle in the upper half of the lower top cover and a retaining ring for cooperating with the lower top cover is placed in the annular groove, thereby realizing a reliable assembly connection between the spindle and the lower top cover and ensuring the reliability of use.

[0017] (3) By providing an axially set anti-reverse groove on the circumferential surface of the connecting column and screwing an anti-reverse bolt that matches the anti-reverse groove onto the outer hexagonal screw joint section of the lower top cover, the anti-rotation and anti-reverse functions are achieved, further improving the reliability of use.

[0018] (4) By setting a marking line on the outer circumference surface of the lower top cover to mark the compression elastic force, the vibration damping elastic force can be marked, and the intuitiveness of use is good. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the half-section structure of Embodiment 1 of this utility model; Figure 2 This is a three-dimensional structural diagram of the support component in Embodiment 1 of this utility model; Figure 3 This is a three-dimensional structural diagram of the vibration damping component in Embodiment 1 of this utility model; Figure 4 This is a half-sectional structural diagram of the support component in Embodiment 1 of this utility model; Figure 5 This is a half-sectional view of the vibration damping component in Embodiment 1 of this utility model; Figure 6 for Figure 5 A magnified structural diagram at point A; Figure 7 This is a three-dimensional structural diagram of Embodiment 2 of the present invention; Figure 8 This is an exploded structural diagram of Embodiment 2 of the present invention; Figure 9 This is a cross-sectional structural diagram of Embodiment 2 of the present invention. Detailed Implementation

[0020] The vibration damping seat of the switch machine support of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example 1

[0021] like Figure 1-6 As shown, the vibration damping base of this utility model for a switch machine support includes a support assembly 1 as a bottom support and a vibration damping assembly 2 installed in conjunction with the support assembly. Figure 2-5As can be seen, the support component 1 includes a base 12 with a bowl-shaped outer contour surface and a connecting column 13 provided on the base. The connecting column 13 includes a main body section with external connecting threads and a fixing section extending from the lower end of the main body section (the connecting column can also be directly made of adjusting bolts). The base 12 has a connecting hole (preferably an oblong hole) in the center. The fixing section of the connecting column 13 passes through the connecting hole and is screwed and fixed to the base by nuts, washers and stop springs. The upper part of the connecting column 13 has a blind hole cavity. The vibration damping component 2 is actually two sleeve structures with closed tops and open bottoms (of course, the top of the sleeve structure is provided with through holes). Specifically, it includes an upper top cover 2. 1. A sleeve structure with a mounting cavity, a main shaft 22 fixedly mounted to the upper cover, and a lower cover 23 mounted on the opening end of the mounting cavity of the upper cover (similarly, the lower cover of the sleeve structure must also have a corresponding cavity, i.e., the lower cover 23 is a hollow structure). The upper cover 21 has a threaded hole 211 in its through hole, and the main shaft 22 has a threaded section 223 that mates with the threaded hole. The lower end of the main shaft 22 extends into the mounting cavity of the upper cover 21 and is threaded with the threaded section of the main shaft through the threaded hole. At the same time, an elastic element 3 is mounted on the main shaft 22. In this embodiment, the elastic element is a spring. Since both the upper cover 21 and the lower cover 23 have through holes... The top of the lower cover 23 is closed, and the upper end of the lower cover 23 extends into the mounting cavity of the upper cover 21. Therefore, the main shaft 22 extends into the mounting cavity and inevitably causes the elastic element 3 to press against the upper end surface of the lower cover, thus forming an elastic floating structure between the upper cover 21 and the lower cover 23. Furthermore, the lower cover 23 is a hollow structure, and its cavity is a guide cavity that runs vertically through the lower cover. The support assembly 1 has an inner cavity (as shown in the figure, the blind hole opened at the upper part of the connecting column 13 serves as the inner cavity). Therefore, the main shaft 22 passes through the through hole at the top closed end of the lower cover and then extends into the inner cavity of the support assembly 1 through the guide cavity to satisfy the vertical floating stroke of the main shaft and thus meet the adjustment requirements. Specifically, the lower cover 23 It includes an external hexagonal screw-in section 231 and a lead section 232 connected to the upper end of the external hexagonal screw-in section. The lead section of the lower top cover 23 extends into the opening end of the mounting cavity of the upper top cover. The guide cavity of the lower top cover 23 has an internal thread section 233. The external thread of the connecting column 13 is screwed into the internal thread section of the lower top cover and can adjust the spring force. At the same time, it realizes the cooperation and installation of the support component 1 and the lower top cover 23. During installation, the on-site personnel can adjust the height of the lower top cover and make appropriate adjustments to the spring force through the external hexagonal screw-in section 231 of the lower top cover 23. The blind hole opened on the upper part of the connecting column 13 is a stepped hole. A self-lubricating bushing is installed in the stepped hole. The lower end of the spindle is in cooperation with the self-lubricating bushing 132. During operation, when the top of the main shaft 22 and the upper cover 21 are subjected to the force transmitted by the vibration of the switch machine support, the main shaft and the upper cover 21 may vibrate rapidly. At this time, the main shaft 22 will reciprocate up and down under the restriction of the self-lubricating bushing to release the force generated by the vibration. If the main shaft is rigidly connected to the support assembly, it may affect the vibration reduction effect.

[0022] Furthermore, the main shaft 22 is provided with an annular groove 221 located in the upper half of the lower top cover 23, and a retaining ring 222 for cooperating with the lower top cover 23 is placed in the annular groove 221.

[0023] Furthermore, the connecting column 13 has an axially arranged anti-reverse groove 121 on its circumferential surface. The outer hexagonal screw section 231 of the lower top cover 23 is screwed with an anti-reverse bolt 234 that mates with the anti-reverse groove. The anti-reverse bolt prevents the lower top cover from shifting under vibration. During connection, the main shaft 22 and the upper top cover 21 are connected by threads. Then, the spring and the lower top cover 23 are installed in sequence. After completion, the retaining ring 222 is installed into the stop groove of the main shaft by using a sleeve or a similar tubular tool to make the vibration damping assembly a whole component. Since the upper top cover is against the support plate of the switch machine, when the lower top cover is rotated with a wrench, the lower top cover moves upward, thereby compressing the spring and adjusting the spring force.

[0024] Furthermore, a marking line 235 for marking the compression elastic force can be provided on the outer circumferential surface of the lower top cover 23. The value of the vibration damping elastic force can be confirmed by using the marking line on the outer circumferential surface of the lower top cover (the scale and elastic force value can be marked by a laser marking machine).

[0025] In addition, the base is spherical and is connected to the connecting column (adjusting bolt) 12 by nuts and spring washers. The two have a gap of 0.5-1.0mm in the axial and radial directions, which is suitable for uneven ground and complex ground environments such as tracks with (or without) slag. Example 2

[0026] As shown in 7-9, the structure of this embodiment is roughly the same as that of embodiment one. The difference is that the structure of the support component 1 is different from that of embodiment one, that is: the bottom of the base 12 is provided with a vibration damping pad 14.

[0027] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A vibration damping base for a switch machine support, characterized in that: The system includes a support assembly (1) that serves as a bottom support and a vibration damping assembly (2) that is installed in conjunction with the support assembly. The vibration damping assembly (2) includes an upper cover (21) with a mounting cavity, a main shaft (22) that is fixedly installed with the upper cover, and a lower cover (23) that is installed at the opening of the mounting cavity of the upper cover. The lower end of the main shaft (22) extends into the mounting cavity and is fitted with an elastic element (3) that presses against the upper surface of the lower cover, thereby forming an elastic floating structure between the upper cover (21) and the lower cover (23). The support assembly (1) is installed in conjunction with the lower cover (23) and serves as a bottom support.

2. The switch machine support vibration damping seat according to claim 1, characterized in that: The lower top cover (23) includes an external hexagonal screw-in section (231) and a lead section (232) connected to the upper end of the external hexagonal screw-in section. The lead section of the lower top cover (23) extends into the opening end of the mounting cavity of the upper top cover.

3. The switch machine support vibration damping seat according to claim 1 or 2, characterized in that: The lower top cover (23) also has a guide cavity that runs vertically through it. The support assembly (1) has an inner cavity (11). The main shaft (22) extends into the inner cavity (11) through the guide cavity of the lower top cover to satisfy the stroke of the main shaft floating up and down.

4. The switch machine support vibration damping seat according to claim 3, characterized in that: The support assembly (1) includes a base (12) and a connecting post (13) with an external thread provided on the base. The guide cavity of the lower cover (23) has an internal thread section (233) of the lower cover. The external thread of the connecting post (13) is screwed into the internal thread section of the lower cover and can adjust the spring force.

5. The switch machine support vibration damping seat according to claim 4, characterized in that: The main shaft (22) is provided with an annular groove (221) located in the upper half of the lower top cover (23), and a retaining ring (222) for cooperating with the lower top cover (23) is placed in the annular groove (221).

6. The switch machine support vibration damping seat according to claim 4 or 5, characterized in that: The connecting column (13) has an axially arranged anti-reverse groove (131) on its circumferential surface, and the outer hexagonal screw section (231) of the lower top cover (23) is screwed with an anti-reverse bolt (234) that matches the anti-reverse groove.

7. The switch machine support vibration damping seat according to claim 6, characterized in that: The top cover (21) is provided with a screw thread hole (211), and the spindle (22) is provided with a spindle thread section (223) that mates with the screw thread hole.

8. The switch machine support vibration damping seat according to claim 7, characterized in that: The outer circumferential surface of the lower top cover (23) is provided with marking lines (235) for marking the compressive elastic force.

9. The switch machine support vibration damping seat according to claim 7, characterized in that: The base (12) has a bowl-shaped structure.

10. The switch machine support vibration damping seat according to claim 9, characterized in that: The bottom of the base (12) is provided with a vibration damping pad (14).

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