Adjustable railway rail brace

Abstract

The utility model discloses an adjustable railway rail brace which comprises a rail brace seat suitable for being installed and fixed on a sleeper. One end of the supporting piece is suitable for being supported on the rail waist of the rail in an abutting mode, the supporting piece is installed on the back vertical plate in a penetrating mode, and the supporting piece can move on the back vertical plate in the axial direction of the supporting piece so as to adapt to different rail bottom gradients; the pre-tightening assembly comprises a pre-tightening nut and an elastic pre-tightening piece which are matched with each other, the pre-tightening nut is connected to the supporting piece in a threaded mode and located on the inner side of the back vertical plate, the elastic pre-tightening piece is extruded and limited between the inner walls of the two side vertical plates and elastically deforms, and the elastic pre-tightening piece exerts pre-tightening force on the pre-tightening nut under the action of the elasticity of the elastic pre-tightening piece. According to the adjustable railway rail brace in the embodiment, the rail cant can be adjusted; in addition, the elastic pre-tightening piece is arranged, the pre-tightening nut can be pre-tightened, and the problem that in the prior art, due to long-term vibration of the rail, the nut is loosened is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway rail auxiliary tools, in particular to an adjustable railway rail support. Background Art

[0002] In track components, a component installed on the outside of the rail in order to effectively resist the lateral force between the wheel and rail. Rail supports are generally installed on the outside of the outer rail of a small radius curved track to prevent excessive lateral displacement of the track or even overturning of the rail when the train passes through the curve due to excessive lateral force.

[0003] A Chinese patent (authorization announcement number: CN204401369U) discloses a high-speed railway track reinforcement rail support, in which the rail support is arranged between the rail and the sleeper, the bottom plane of the rail support is fixedly installed on the sleeper, and bolts are used to penetrate the rail and the back surface of the rail support for installation and fixation, so that the back surface of the rail support is in close contact with the waist of the rail.

[0004] In the above patent, the back surface of the rail support is in close contact with the waist of the rail and the two are installed and fixed by penetrating bolts. Therefore, the angle between the rail and the sleeper cannot be adjusted. Therefore, the bottom slope of the rail cannot be adjusted using the above rail support; in addition, when the rail vibrates for a long time, the nuts on the bolts will loosen. Utility Model Content

[0005] The utility model provides an adjustable railway rail support, which is used to solve the problems that the rail support in the prior art cannot adjust the rail bottom slope and the nuts on the bolts used for fixing the back surface of the rail support and the rail are easy to loosen.

[0006] The utility model provides an adjustable railway rail support, comprising:

[0007] The rail support seat comprises a bottom plate suitable for being installed and fixed on the rail sleeper, two side upright plates arranged on opposite sides of the bottom plate, and a back upright plate arranged on the bottom plate and located between the two side upright plates;

[0008] A support member, one end of which is suitable for being supported on the rail waist of the track, and the support member is installed through the back plate, and the support member can move along its own axial direction on the back plate to adapt to different rail bottom slopes;

[0009] The pre-tightening assembly includes a pre-tightening nut and an elastic pre-tightening member that cooperate with each other, wherein the pre-tightening nut is threadedly connected to the support member and is located on the inner side of the back upright plate, and the elastic pre-tightening member is squeezed and restricted between the inner walls of the two side upright plates and undergoes elastic deformation, and the elastic pre-tightening member applies a pre-tightening force to the pre-tightening nut under the action of its own elastic force.

[0010] Specifically, the elastic preload member comprises:

[0011] An elastic main board is located between the back plate and the pre-tightening nut. After the elastic main board is bent and deformed by force, it can be pressed against one end surface of the pre-tightening nut to apply a pre-tightening force to the pre-tightening nut.

[0012] The two wing plates are arranged at opposite ends of the elastic main plate. The two wing plates are stopped on the two side vertical plates and apply bending moment to the elastic main plate. The elastic main plate can be bent and deformed under the action of the bending moment.

[0013] Optionally, the wing plates each include a connecting end connected to the elastic main plate, and a free end extending in a direction away from the back plate, and the wing plates are abutted against the side plates through an outer wall thereof close to the free end.

[0014] Furthermore, a limiting step is formed on the inner wall of the side vertical plate, and the inner wall of the limiting step is arranged toward the end surface of the free end. The limiting step can limit the wing plate by resisting and limiting on the end surface of the free end.

[0015] Preferably, the elastic preload member is a bent plate, and the elastic main plate and the two wing plates are integrally formed.

[0016] Optionally, the supporting member is provided in plurality, and the plurality of supporting members are arranged at intervals along the length direction of the back stand;

[0017] The pre-tightening assembly includes an elastic pre-tightening member and a plurality of pre-tightening nuts, and the plurality of pre-tightening nuts are threadedly connected to the plurality of supporting members in a one-to-one correspondence. Optionally, the back plate is provided with a threaded hole for mounting the supporting member; the supporting member is threadedly connected to the threaded hole of the back plate, and the supporting member is a bolt or a nut.

[0018] As another embodiment, the adjustable railway rail support further comprises:

[0019] A pad is arranged between the rail and the support member, and the support member supports the rail waist through the pad.

[0020] Preferably, the cross section of the cushion block is wedge-shaped.

[0021] Optionally, a downward boss is formed on the bottom wall of the bottom plate.

[0022] Compared with the prior art, the advantages of the utility model are:

[0023] 1. The adjustable railway rail support in the embodiment of the utility model has a support member installed on the back plate. The support member is adjusted to move along its own axial direction on the back plate to adjust the distance between one end of the support member used to support the rail and the back plate, thereby adjusting the angle between the rail and the sleeper, that is, adjusting the rail bottom slope; in addition, by arranging an elastic preload member, the preload nut can be preloaded, thereby avoiding the problem of nut loosening caused by long-term vibration of the rail in the prior art.

[0024] 2. In this embodiment, a pad is provided between the track and the support member, which can increase the contact area with the track and the force-bearing area of ​​the track, thereby making the track evenly stressed. Preferably, the pad has a wedge-shaped cross section, and the wedge-shaped sharp corner of the pad is arranged downward.

[0025] 3. After the rail support is installed on the track, long-term vibration of the track may cause relative displacement of the elastic preload member relative to the rail support seat. In this embodiment, a limiting step is used to limit the wing plate on the end face of the free end, which can prevent the elastic preload member from escaping from the accommodating cavity of the rail support seat, thereby ensuring the installation reliability of the elastic preload member. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the installation and cooperation between the adjustable railway rail support and the track in the first embodiment;

[0028] Figure 2 is an axonometric view of the adjustable railway rail support of the first embodiment at an angle;

[0029] Figure 3 yes Figure 2 Axonometric view of the adjustable rail support at another angle;

[0030] Figure 4 yes Figure 2 An exploded view of the adjustable railroad support in Figure 1;

[0031] Figure 5 is a schematic diagram of the installation and cooperation between the adjustable railway rail support and the track in the second embodiment;

[0032] Figure 6 is an axonometric view of the adjustable railway rail support of the second embodiment at an angle;

[0033] Figure 7 yes Figure 6 Axonometric view of the adjustable rail support at another angle;

[0034] Figure 8 yes Figure 6 Exploded view of the adjustable railroad brace in Figure 1.

[0035] Reference numerals:

[0036] 1. Rail support seat; 11. Bottom plate; 111. Boss; 112. First mounting hole; 12. Side plate; 121. Positioning step; 13. Back plate; 131. Threaded hole; 132. Second mounting hole;

[0037] 2. Supporting parts; 3. Pre-tightening nuts;

[0038] 4. elastic preload member; 41. elastic main plate; 42. wing plate; 421. connecting end; 422. free end;

[0039] 5. Pads;

[0040] 100, track; 101, rail waist; 200, vertical bolt; 300, spring bar. DETAILED DESCRIPTION

[0041] The utility model will be further described below in conjunction with the accompanying drawings.

[0042] Example 1

[0043] like Figures 1 to 4 As shown, an embodiment of the utility model provides an adjustable railway rail support, including a rail support seat 1, a support member 2 and a pre-tightening assembly.

[0044] The rail support seat 1 is arranged between the rail 100 and the sleeper, and the rail support seat 1 includes a bottom plate 11, two side plates 12 and a back plate 13. The rail support seat 1 has a receiving cavity for receiving the preload assembly, and the receiving cavity is defined by the bottom plate 11, the back plate 13 and the two side plates 12. Specifically, a first mounting hole 112 is provided on the bottom plate 11, and the bolt rod of the vertical bolt 200 passes through the spring bar 300 and the first mounting hole 112 and is fixedly installed in the sleeper, so that the bottom plate 11 of the rail support seat 1 is fixed on the sleeper. Using vertical bolts and spring bars to support the rail support seat belongs to the prior art, and this embodiment does not further limit this. A downward boss 111 is formed on the bottom wall of the bottom plate 11, and a limiting groove is correspondingly provided on the top surface of the sleeper. The boss 111 on the bottom plate 11 extends into the limiting groove of the sleeper, and the side wall of the limiting groove can cooperate with the boss 111 to limit the position, thereby enhancing the installation stability between the rail support seat 1 and the sleeper. The two side upright plates 12 are disposed on opposite sides of the bottom plate 11 , and the back upright plate 13 is disposed on the bottom plate 11 and connected between the two side upright plates 12 .

[0045] One end of the support member 2 is used for abutting support on the rail waist 101 of the track 100, and the support member 2 is installed through the back plate 13. The support member 2 can move along its own axial direction on the back plate 13 to adapt to different rail bottom slopes. In this embodiment, a threaded hole 131 for installing the support member 2 is provided on the back plate 13; the support member 2 is threadedly connected to the threaded hole 131 of the back plate 13; optionally, the support member 2 is a bolt or a nut. The pre-tightening assembly includes a pre-tightening nut 3 and an elastic pre-tightening member 4 that cooperate with each other, wherein the pre-tightening nut 3 is threadedly connected to the support member 2 and is located on the inner side of the back plate 13, and the elastic pre-tightening member 4 is squeezed and restricted between the inner walls of the two side plates 12 and undergoes elastic deformation, and the elastic pre-tightening member 4 applies a pre-tightening force to the pre-tightening nut 3 under the action of its own elastic force.

[0046] The adjustable railway rail support in the embodiment of the utility model, the support member 2 is installed on the back plate 13, and the support member 2 is adjusted to move along its own axial direction on the back plate 13 to adjust the distance between one end of the support member 2 used to support the track 100 and the back plate 13, thereby adjusting the angle between the track 100 and the sleeper, that is, adjusting the rail bottom slope; in addition, by arranging the elastic preload member 4, the preload nut 3 can be preloaded, thereby avoiding the problem of nut loosening caused by long-term vibration of the track 100 in the prior art.

[0047] In this embodiment, the elastic preload member 4 includes an elastic main board 41 and two wing plates 42 respectively arranged at opposite ends of the elastic main board 41. The elastic main board 41 is sleeved on the support member 2 and is located between the back upright plate 13 and the preload nut 3. The two wing plates 42 abut against the two side upright plates 12 and apply a bending moment to the elastic main board 41. The elastic main board 41 can be bent and deformed under the action of the bending moment. The bent and deformed elastic main board 41 abuts against one end surface of the preload nut 3 to apply a preload force to the preload nut 3.

[0048] The wing plates 42 each include a connecting end 421 connected to the elastic main plate 41 , and a free end 422 extending in a direction away from the rear plate 13 . The wing plates 42 abut against the side plates 12 through an outer wall thereof close to the free end 422 .

[0049] As an embodiment, the elastic preload member 4 is a bent plate, which is elastic, and the elastic main plate 41 is integrally formed with the two wing plates 42. As another embodiment, the wing plates 42 are made of rigid material, and the two wing plates 42 are connected to the elastic main plate 41 by welding or screws.

[0050] There are multiple support members 2, which are arranged at intervals along the length direction of the back stand 13. The pre-tightening assembly includes an elastic pre-tightening member 4 and multiple pre-tightening nuts 3. The multiple pre-tightening nuts 3 are threadedly connected to the multiple support members 2 in a one-to-one correspondence.

[0051] Optionally, the number of the support members 2 is two. Of course, the number of the support members 2 can be adjusted according to actual needs, and this embodiment does not limit the number of the support members 2.

[0052] Example 2

[0053] like Figures 5 to 8As shown, this embodiment is basically the same as the embodiment 1, except that, in this embodiment, a second mounting hole 132 is provided on the back plate 13, replacing the mounting hole on the back plate 13, and the support member 2 is passed through the second mounting hole 132, and the adjustable railway rail support also includes a pad 5 arranged between the track 100 and the support member 2, one side wall of the pad 5 is in contact with the back plate 13, and is fixedly installed with one end of the support member 2, and the other side wall of the pad 5 is in contact with the rail waist 101, and the support member 2 supports the rail waist 101 through the pad 5.

[0054] In this embodiment, a pad 5 is arranged between the track 100 and the support member 2, which can increase the contact area with the track 100 and the force-bearing area of ​​the track 100, thereby making the track 100 evenly stressed. Preferably, the pad 5 has a wedge-shaped cross section, and the wedge-shaped sharp corner of the pad 5 is arranged downward.

[0055] Example 3

[0056] like Figures 1 to 8 As shown, this embodiment is basically the same as Embodiment 1 and Embodiment 2, except that a limited step 121 is formed on the inner wall of the side stand 12 in this embodiment. Figure 6 and Figure 8 As shown, the inner wall of the limiting step 121 is arranged toward the end surface of the free end 422 , and the limiting step 121 can limit the wing plate 42 by resisting and limiting on the end surface of the free end 422 .

[0057] When the rail support is installed on the rail 100, long-term vibration of the rail 100 may cause relative displacement of the elastic preload 4 with respect to the rail support seat 1. In this embodiment, the limiting step 121 is used to limit the wing plate 42 on the end face of the free end 422, which can prevent the elastic preload 4 from escaping from the accommodating cavity of the rail support seat 1, thereby ensuring the installation reliability of the elastic preload 4.

[0058] As an alternative embodiment, a limiting column may be provided on the inner wall of the side vertical plate 12 to replace the limiting step 121. One end of the limiting column is fixed on the inner wall of the side vertical plate 12, and the other end extends toward the other side vertical plate 12. The limiting column is limited on the end surface of the free end 422 to limit the wing plate 42.

[0059] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An adjustable railway rail support, characterized in that: include: The rail support seat comprises a bottom plate suitable for being installed and fixed on the rail sleeper, two side upright plates arranged on opposite sides of the bottom plate, and a back upright plate arranged on the bottom plate and located between the two side upright plates; A support member, one end of which is suitable for being supported on the rail waist of the track, and the support member is installed through the back plate, and the support member can move along its own axial direction on the back plate to adapt to different rail bottom slopes; The pre-tightening assembly includes a pre-tightening nut and an elastic pre-tightening member that cooperate with each other, wherein the pre-tightening nut is threadedly connected to the support member and is located on the inner side of the back upright plate, and the elastic pre-tightening member is squeezed and restricted between the inner walls of the two side upright plates and undergoes elastic deformation, and the elastic pre-tightening member applies a pre-tightening force to the pre-tightening nut under the action of its own elastic force.

2. The adjustable railway rail support according to claim 1, characterized in that: The elastic preload member comprises: An elastic main board is located between the back plate and the pre-tightening nut. After the elastic main board is bent and deformed by force, it can be pressed against one end surface of the pre-tightening nut to apply a pre-tightening force to the pre-tightening nut. The two wing plates are arranged at opposite ends of the elastic main plate. The two wing plates are stopped on the two side vertical plates and apply bending moment to the elastic main plate. The elastic main plate can be bent and deformed under the action of the bending moment.

3. The adjustable railway rail support according to claim 2, characterized in that: The wing plates each include a connection end connected to the elastic main plate, and a free end extending in a direction away from the back plate, and the wing plates are abutted against the side plates through an outer wall thereof close to the free end.

4. The adjustable railway rail support according to claim 3, characterized in that: A limiting step is formed on the inner wall of the side vertical plate, the inner wall of the limiting step is arranged toward the end surface of the free end, and the limiting step can be limited on the end surface of the free end by resisting and limiting the wing plate.

5. The adjustable railway rail support according to claim 2, characterized in that: The elastic preload member is a bent plate, and the elastic main plate and the two wing plates are formed in one piece.

6. The adjustable railway rail support according to any one of claims 1 to 5, characterized in that: The support members are provided in plurality, and the plurality of support members are arranged at intervals along the length direction of the back stand; The pre-tightening assembly comprises an elastic pre-tightening member and a plurality of pre-tightening nuts, and the plurality of pre-tightening nuts are threadedly connected with the plurality of supporting members in a one-to-one correspondence.

7. The adjustable railway rail support according to claim 1, characterized in that: The back plate is provided with a threaded hole for mounting a support member; the support member is threadedly connected to the threaded hole of the back plate; The supporting member is a bolt or a nut.

8. The adjustable railway rail support according to claim 1, characterized in that: Also includes: A pad is arranged between the rail and the support member, and the support member supports the rail waist through the pad.

9. The adjustable railway rail support according to claim 8, characterized in that: The cross section of the cushion block is wedge-shaped.

10. The adjustable railway rail support according to claim 1, characterized in that: The bottom wall of the bottom plate is formed with a downward boss.

Images