Track fixing device

Abstract

The utility model discloses a track fixing device which comprises a base, a pressing plate and a fastener, the pressing plate is rotatably arranged on the base through the fastener, and a threaded hole is formed in the middle of the base and used for being connected with the fastener. A connecting hole is formed in the middle of the pressing plate, a circular groove is formed in the lower end of the connecting hole, a mounting groove is formed in the upper end of the connecting hole, and a first pressing station, a second pressing station, a third pressing station and a fourth pressing station are arranged on the pressing plate around the outer side of the circular groove; the fastener comprises a self-locking anti-loose gasket and a screw rod, the self-locking anti-loose gasket is arranged at the top of the screw rod, the structure is simple, the machining cost is low, the installation difficulty is reduced, the working efficiency can be improved, the bearing capacity of the base can be improved, and the overall height of the pressing plate is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of track fixing, and in particular relates to a track fixing device. Background Art

[0002] The existing track fixing device is composed of a wedge-shaped adjustment plate 100, a base 200, a pressure plate 300, a fastener 400, etc. The pressure plate and the base are complex in shape and need to be made by precision casting, which has many defects and unstable quality. The pressure plate and the base adjust the relative positions of the pressure plate 300 and the base 200 through the wedge-shaped adjustment plate 100 to achieve track clamping, and can also be used to adjust the track straightness. When the track is deformed by load, expands and contracts due to heat, the fasteners are easy to loosen, causing the track pressure plate to shift, affecting the clamping effect of the pressure plate, and poor reliability; the base of the track pressure plate device has an installation direction, and the installation requirements of the base are high. Therefore, it is necessary to mark the positioning, place the correction, and weld during installation. The process is complex and the precision requirements are high, resulting in high labor intensity and low work efficiency. In addition, the fixing effect of the pressure plate will be affected by its installation quality problems. Utility Model Content

[0003] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the utility model provides a track fixing device including a base, a pressing plate and a fastener, wherein the pressing plate is rotatably arranged on the base through the fastener, wherein:

[0004] A threaded hole is provided in the middle of the base for connection with the fastener;

[0005] A connecting hole is provided in the middle of the pressing plate, a circular groove is provided at the lower end of the connecting hole, a mounting groove is provided at the upper end of the connecting hole, and a first pressing station, a second pressing station, a third pressing station and a fourth pressing station are provided on the pressing plate around the outer side of the circular groove;

[0006] The fastener comprises a self-locking anti-loosening washer and a screw rod, and the self-locking anti-loosening washer is arranged on the top of the screw rod.

[0007] Furthermore, in the above-mentioned rail fixing device, the base is conical, the top of the base matches the circular groove, and the top of the base is rotatably connected to the pressure plate through the circular groove.

[0008] Furthermore, in the above-mentioned rail fixing device, the connecting hole and the threaded hole are both matched with the screw rod, the mounting groove is matched with the self-locking anti-loosening gasket, the screw rod passes through the self-locking anti-loosening gasket, the mounting groove and the connecting hole in sequence and is threadedly engaged with the threaded hole, and the self-locking anti-loosening gasket and the screw rod head are embedded in the mounting groove.

[0009] Furthermore, in the rail fixing device described above, the first pressing station, the second pressing station, the third pressing station and the fourth pressing station are all arc chamfered.

[0010] Furthermore, in the rail fixing device described above, the arc chamfers of the first pressing station, the second pressing station, the third pressing station and the fourth pressing station all match the rail.

[0011] Furthermore, in the above-mentioned rail fixing device, the distance from the first pressing station arc chamfer to the center of the connecting hole, the distance from the second pressing station arc chamfer to the center of the connecting hole, the distance from the third pressing station arc chamfer to the center of the connecting hole and the distance from the fourth pressing station arc chamfer to the center of the connecting hole are all different.

[0012] Furthermore, in the above-mentioned rail fixing device, the base is made of round steel blanks.

[0013] Furthermore, in the above-mentioned rail fixing device, the pressing plate is rectangular and is made of steel plate blanking.

[0014] The track fixing device of the utility model has the following advantages and beneficial effects:

[0015] The overall structure is simple, the manufacturing cost is low, the mechanical properties are good, the quality is stable, there is no direction requirement during installation, the base and the track beam are welded around, the construction is convenient, and it can effectively improve the clamping function of the track and reduce the difficulty of welding; at the same time, the overall height of the pressure plate device is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the present invention and constitute a part of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the track fixing device in the prior art;

[0018] Figure 2 It is a front view of the track fixing device of the utility model;

[0019] Figure 3 It is a top view of the track fixing device of the utility model;

[0020] Figure 4 for Figure 3 Cross-sectional view of GG.

[0021] Description of reference numerals:

[0022] 100: wedge-shaped adjustment plate, 200: base, 300: pressure plate, 400: fastener;

[0023] 1: base, 11: threaded hole;

[0024] 2: pressing plate, 21: connecting hole, 22: circular groove, 23: mounting groove, 24: first pressing station, 25: second pressing station, 26: third pressing station, 27: fourth pressing station;

[0025] 3 fasteners, 31 self-locking anti-loosening washers, 32 screws. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 2 As shown, the rail fixing device of the utility model comprises a base 1, a pressing plate 2 and a fastener 3, and the pressing plate 2 is rotatably arranged on the base 1 through the fastener 3, wherein:

[0028] A threaded hole 11 is provided in the middle of the base 1 for connection with the fastener 3;

[0029] A connecting hole 21 is provided in the middle of the pressing plate 2, a circular groove 22 is provided at the lower end of the connecting hole 21, a mounting groove 23 is provided at the upper end of the connecting hole 21, and a first pressing station 24, a second pressing station 25, a third pressing station 26 and a fourth pressing station 27 are provided around the outer side of the circular groove 22 of the pressing plate 2;

[0030] The fastener 3 includes a self-locking anti-loosening washer 31 and a screw rod 32 , and the self-locking anti-loosening washer 31 is arranged on the top of the screw rod 32 .

[0031] Furthermore, in the track fixing device of the present invention, the base 1 is conical, and the top of the base 1 matches the circular groove 22. The top of the base 1 is rotatably connected to the pressure plate 2 through the circular groove 22, which is convenient for disassembly and adjustment. At the same time, the lateral force of the track can be transmitted to the base 1 through the pressure plate 2, and can withstand larger lateral forces.

[0032] Furthermore, in the rail fixing device of the present invention, the connecting hole 21 and the threaded hole 11 are both matched with the screw 32, the mounting groove 23 is matched with the self-locking anti-loosening gasket 31, the screw 32 passes through the self-locking anti-loosening gasket 31, the mounting groove 23 and the connecting hole 21 in sequence and is threadedly engaged with the threaded hole 11, the self-locking anti-loosening gasket 31 and the head of the screw 32 are embedded in the mounting groove 23, thereby effectively ensuring the fixation of the pressure plate 2.

[0033] Furthermore, in the track fixing device of the present invention, the first pressing station 24, the second pressing station 25, the third pressing station 26 and the fourth pressing station 27 are all arc chamfered, which can increase the contact area between the pressure plate 2 and the bottom edge of the track and press the track without affecting the slight sliding of the track along the longitudinal direction, thereby meeting the needs of skewed installation of the track.

[0034] Furthermore, in the rail fixing device of the present invention, the arc chamfers of the first pressing station 24, the second pressing station 25, the third pressing station 26 and the fourth pressing station 27 are all matched with the rail, thereby effectively adapting to the pressing of various types of rails.

[0035] Furthermore, in the rail fixing device of the present invention, the distance from the arc chamfer of the first pressing station 24 to the center of the connecting hole 21, the distance from the arc chamfer of the second pressing station 25 to the center of the connecting hole 21, the distance from the arc chamfer of the third pressing station 26 to the center of the connecting hole 21 and the distance from the arc chamfer of the fourth pressing station 27 to the center of the connecting hole 21 are all different, thereby adapting to the gaps between various bases 1 and the rails and meeting the needs of horizontal adjustment of the rails.

[0036] Furthermore, in the rail fixing device of the present invention, the base 1 is made of round steel blanks, thereby effectively reducing the manufacturing cost.

[0037] Furthermore, in the rail fixing device of the present invention, the pressing plate 2 is rectangular and is made of steel plate blanking, thereby effectively reducing the manufacturing cost.

[0038] Specifically, during installation, the base 1 is first placed on both sides of the track without any direction requirements. At this time, the screw rod 32 is passed through the self-locking anti-loosening gasket 31 and the connecting hole 21 in sequence, and then the screw rod 32 is rotated to rotate into the threaded hole 11, and the pressure plate 2 is ensured to be able to rotate on the base 1. According to the gap between the base 1 and the track, a suitable clamping position is selected. At this time, the screw rod 32 is fully engaged with the threaded hole 11 to clamp the track and meet the needs of horizontal adjustment of the track. When it is necessary to adjust the clamping plate 2 to change the clamping position, only the fastener 3 needs to be loosened and the clamping plate 2 can be rotated to achieve transposition installation. The track clamping plate 2 has extensibility, and the four surrounding clamping positions can be processed into the same arc chamfer for fixing the same model of track; it can also be processed into arc chamfers of different shapes for fixing different models of tracks;

[0039] During operation, the lateral force borne by the track can be transferred to the base 1 through the pressing plate 2, and can withstand a large lateral force; the arc chamfers of the first pressing station 24, the second pressing station 25, the third pressing station 26 and the fourth pressing station 27 on the pressing plate 2 match the shape of the bottom edge of the track, which can increase the contact area with the bottom edge of the track and press the track without affecting the slight sliding of the track in the longitudinal direction. The pressing plate 2 can rotate around the base 1, which can effectively press the track and meet the needs of skewed installation of the track.

[0040] In summary, compared with the prior art, the track fixing device of the utility model has the following advantages and beneficial effects:

[0041] The overall structure is simple, the manufacturing cost is low, the mechanical properties are good, the quality is stable, there is no direction requirement during installation, the base and the track beam are welded around, the construction is convenient, and it can effectively improve the clamping function of the track and reduce the difficulty of welding; at the same time, the overall height of the pressure plate device is low.

[0042] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A track fixing device, characterized in that: The track fixing device comprises a base, a pressing plate and a fastener, wherein the pressing plate is rotatably arranged on the base through the fastener, wherein: A threaded hole is provided in the middle of the base for connection with the fastener; A connecting hole is provided in the middle of the pressing plate, a circular groove is provided at the lower end of the connecting hole, a mounting groove is provided at the upper end of the connecting hole, and a first pressing station, a second pressing station, a third pressing station and a fourth pressing station are provided on the pressing plate around the outer side of the circular groove; The fastener comprises a self-locking anti-loosening washer and a screw rod, and the self-locking anti-loosening washer is arranged on the top of the screw rod.

2. The rail fixing device according to claim 1, characterized in that: The base is conical, the top of the base matches the circular groove, and the top of the base is rotatably connected to the pressing plate through the circular groove.

3. The rail fixing device according to claim 1, characterized in that: The connecting hole and the threaded hole are both matched with the screw rod, the mounting groove is matched with the self-locking anti-loosening gasket, the screw rod passes through the self-locking anti-loosening gasket, the mounting groove and the connecting hole in sequence and is threadedly engaged with the threaded hole, and the self-locking anti-loosening gasket and the screw rod head are embedded in the mounting groove.

4. The rail fixing device according to claim 1, characterized in that: The first pressing station, the second pressing station, the third pressing station and the fourth pressing station are all arc chamfered.

5. The rail fixing device according to claim 4, characterized in that: The arc chamfers of the first pressing station, the second pressing station, the third pressing station and the fourth pressing station all match the track.

6. The rail fixing device according to claim 5, characterized in that: The distance from the first pressing station arc chamfer to the center of the connecting hole, the distance from the second pressing station arc chamfer to the center of the connecting hole, the distance from the third pressing station arc chamfer to the center of the connecting hole and the distance from the fourth pressing station arc chamfer to the center of the connecting hole are all different.

7. The rail fixing device according to claim 1, characterized in that: The base is made of round steel blanking.

8. The rail fixing device according to claim 1, characterized in that: The pressing plate is rectangular and is made of steel plate.

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