Anti-rotation device, anti-creeping energy absorption device and rail vehicle

Abstract

According to the anti-rotation device, the anti-creeping energy absorption device and the railway vehicle, the limiting groove used for containing the special-shaped nut is formed in the base of the anti-rotation device, at least one set of limiting walls are arranged in the limiting groove so as to limit at least one set of opposite sides of the special-shaped nut, the anti-rotation baffle is arranged above the limiting groove, and the anti-creeping energy absorption device is arranged above the anti-rotation baffle. The anti-rotation baffle is provided with an anti-rotation blocking table extending into the limiting groove to limit the other edges of the special-shaped nut, and all the edges of the special-shaped nut are limited and prevented from rotating through cooperation of the limiting baffle and the limiting groove so that torque can be applied. A first through hole corresponding to a threaded hole of the special-shaped nut is formed in the groove bottom of the limiting groove, and a second through hole corresponding to the threaded hole of the special-shaped nut is formed in the anti-rotation baffle in a penetrating mode so that a part to be installed can conveniently penetrate through the first through hole to be fixed to the special-shaped nut in a threaded mode. Therefore, application of torque is guaranteed, and the anti-rotation function is achieved. Limiting operation does not need to be provided in the torque applying process, replacement is convenient when damaged, only the special-shaped nut needs to be replaced, and cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of tooling, and in particular to an anti-rotation device, an anti-climbing energy absorption device and a rail vehicle. Background Art

[0002] The most common way to install rail transit equipment is bolt connection, but some large equipment uses M16~M36 bolts, which require a larger torque value. Often, due to the limitations of the installation environment and tooling, it is impossible to apply torque. Therefore, in some special cases, it is necessary to change the bolt connection method or use an anti-rotation structure to avoid the problem of being unable to apply torque due to limited space.

[0003] like Figure 1 As shown in the figure, the nut stopper 01 is generally used to prevent rotation and limit the position; the threaded plate is used instead of the nut, and its load-bearing capacity is low; additional operations are required to ensure that the nut does not fall out of the stopper when applying torque; and the disassembly and replacement actions are complicated. Since there is no limit structure at the rear, additional operations such as Figure 1 The tightening force indicated by the arrow is used to prevent the nut from coming out when the torque is applied. The installation environment is limited and there is no limit when applying the torque, so it cannot be applied; the anti-rotation limit is not enough, and the whole nut needs to be replaced after damage. Summary of the invention

[0004] An anti-rotation device, an anti-climbing energy absorption device and a rail vehicle are provided in the embodiments of the present application to solve the problems of low load-bearing capacity of the existing nut brake seat, inability to limit when applying torque, and inconvenient operation.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] An anti-rotation device comprises a base, a special-shaped nut and an anti-rotation baffle;

[0007] The surface of the base is provided with a limiting groove for accommodating the special-shaped nut, the limiting groove has at least one set of limiting walls arranged opposite to each other, for limiting at least one set of opposite sides of the special-shaped nut, and the bottom of the limiting groove is provided with a first through hole corresponding to the threaded hole of the special-shaped nut;

[0008] The anti-rotation baffle cover is arranged above the limiting groove and is detachably fixedly connected to the base; the surface of the anti-rotation baffle close to the limiting groove has an anti-rotation baffle extending into the limiting groove, which is used to limit the remaining edges of the special-shaped nut; the anti-rotation baffle is provided with a second through hole corresponding to the threaded hole of the special-shaped nut.

[0009] Optionally, the special-shaped nut is a quadrilateral nut;

[0010] The limiting wall of the limiting groove limits a group of opposite sides of the special-shaped nut; and an anti-rotation baffle is respectively provided on both sides in the width direction of the anti-rotation baffle.

[0011] Optionally, the base is provided with a mounting hole for cooperating with a threaded fastener.

[0012] Optionally, the special-shaped nut is a parallelogram nut;

[0013] The two limiting walls of the limiting groove are arranged in parallel; the two anti-rotation baffles of the anti-rotation baffle are arranged in parallel.

[0014] Optionally, there are four special-shaped nuts; the four special-shaped nuts are arranged in mirror symmetry along the center line of the first direction of the base.

[0015] Optionally, a group of limiting bosses are respectively provided on both sides of the surface of the base along the center line of the first direction;

[0016] Any group of the limiting bosses includes two limiting bosses arranged parallel to the center line of the first direction, and the two limiting bosses and the base form the limiting groove.

[0017] Optionally, the two limiting bosses respectively penetrate the base in directions parallel to the center line of the first direction;

[0018] Two special-shaped nuts are arranged in each of the limiting grooves, and the two special-shaped nuts are symmetrically arranged along the second direction center line of the base; the first direction center line and the second direction center line are arranged vertically.

[0019] Optionally, baffle mounting holes are respectively provided on the top surfaces of the two limiting bosses, and the anti-rotation baffle is fixed to the base via threaded fasteners and the baffle mounting holes.

[0020] Optionally, a clearance hole for making way for a component to be installed is provided at the center of the base.

[0021] The present application provides an anti-climbing energy absorption device, comprising:

[0022] Anti-climbing teeth;

[0023] Two groups of energy absorbing bodies provided on the stop beam of the rail vehicle are respectively located at two ends of the anti-climbing teeth;

[0024] In the anti-rotation device described in any of the above embodiments, the other end of the energy absorbing body is fixed to the stop beam of the rail vehicle through the anti-rotation device.

[0025] The present application provides a rail vehicle, comprising the anti-climbing energy absorption device described in the above embodiment.

[0026] Compared with the prior art, the anti-rotation device provided in the embodiment of the present application has the following technical effects:

[0027] A limiting groove for accommodating the special-shaped nut is arranged on the base, and at least one group of limiting walls is arranged in the limiting groove to limit at least one group of opposite sides of the special-shaped nut, and an anti-rotation baffle is arranged above the limiting groove, and the anti-rotation baffle is provided with an anti-rotation baffle extending into the limiting groove to limit the remaining sides of the special-shaped nut. Through the cooperation of the limiting baffle and the limiting groove, each side of the special-shaped nut is limited and anti-rotated, so that it is convenient to apply torque; at the same time, the bottom of the limiting groove is provided with a first through hole corresponding to the threaded hole of the special-shaped nut, and the anti-rotation baffle is provided with a second through hole corresponding to the threaded hole of the special-shaped nut, so that the component to be installed passes through the first through hole and is threadedly fixed with the special-shaped nut. Thus, the torque is applied and the anti-rotation function is realized; it is ensured that no limiting operation is provided during the torque application process, and it is convenient to replace when damaged, and only the special-shaped nut needs to be replaced, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0029] Figure 1 A schematic diagram of the structure of a nut stopper provided by the prior art;

[0030] Figure 2 A schematic diagram of an explosion structure of an anti-rotation device provided in an embodiment of the present application;

[0031] Figure 3 A schematic diagram of the axonometric structure of an anti-rotation device provided in an embodiment of the present application;

[0032] Figure 4 A schematic diagram of the installation structure of the special-shaped nut provided in an embodiment of the present application;

[0033] Figure 5 A schematic diagram of the assembly of the anti-rotation device and the anti-climbing energy absorption device provided in an embodiment of the present application;

[0034] Figure 6 A schematic diagram of the installation of the anti-rotation device provided in an embodiment of the present application.

[0035] The following are marked in the accompanying drawings:

[0036] Threaded stopper 01;

[0037] Base 1, special-shaped nut 2, anti-rotation baffle 3;

[0038] The limiting groove 11, the first through hole 12, the mounting hole 13, the limiting boss 14, the baffle mounting hole 15, and the clearance hole 16;

[0039] The anti-rotation stopper 31 and the second through hole 32 . DETAILED DESCRIPTION

[0040] The embodiments of the present invention disclose an anti-rotation device, an anti-climbing energy absorption device and a rail vehicle, so as to solve the problems of low load-bearing capacity of the existing nut brake seat, inability to limit when applying torque and inconvenient operation.

[0041] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0042] See also Figure 2-6 , Figure 2 A schematic diagram of an explosion structure of an anti-rotation device provided in an embodiment of the present application; Figure 3 A schematic diagram of the axonometric structure of an anti-rotation device provided in an embodiment of the present application; Figure 4 A schematic diagram of the installation structure of the special-shaped nut provided in an embodiment of the present application; Figure 5 A schematic diagram of the assembly of the anti-rotation device and the anti-climbing energy absorption device provided in an embodiment of the present application; Figure 6 A schematic diagram of the installation of the anti-rotation device provided in an embodiment of the present application.

[0043] In a specific embodiment, the anti-rotation device provided by the present application includes a base 1, a special-shaped nut 2 and an anti-rotation baffle 3; a limiting groove 11 for accommodating the special-shaped nut 2 is provided on the surface of the base 1, and the limiting groove 11 has at least one group of relatively arranged limiting walls for limiting at least one group of opposite sides of the special-shaped nut 2, and a first through hole 12 corresponding to the threaded hole of the special-shaped nut 2 is provided through the bottom of the limiting groove 11;

[0044] The anti-rotation baffle plate 3 is covered above the limiting groove 11 and is detachably fixedly connected to the base 1; the surface of the anti-rotation baffle plate 3 close to the limiting groove 11 has an anti-rotation baffle 31 extending into the limiting groove 11, which is used to limit the remaining edges of the special-shaped nut 2; the anti-rotation baffle plate 3 is provided with a second through hole 32 corresponding to the threaded hole of the special-shaped nut 2.

[0045] The limiting groove 11 can be set according to the circumferential edge structure of the special-shaped nut 2. It can be understood that the special-shaped nut 2 can be a quadrilateral nut, a T-shaped safety belt cover nut or other non-standard nut; the special-shaped nut 2 has at least one group of opposite sides arranged relatively, and the limiting groove 11 has at least one group of limiting walls arranged relatively to limit at least one group of opposite sides of the special-shaped nut 2. The anti-rotation baffle 3 covers the top of the limiting groove 11 and is detachably fixedly connected to the base 1, preferably connected by threaded fasteners. The surface of the anti-rotation baffle 3 close to the limiting groove 11 is provided with an anti-rotation baffle 31, and the anti-rotation baffle 31 extends into the limiting groove 11 to limit the remaining sides of the special-shaped nut 2. At the same time, the anti-rotation baffle 3 is set to limit the axial movement of the special-shaped nut 2 during the application of torque, so that it is more convenient to apply torque, and there is no need to manually limit the special-shaped nut 2, thereby simplifying the installation operation. The anti-rotation baffle 31 is preferably integrally arranged with the anti-rotation baffle plate 3, and extends vertically in a thickness direction perpendicular to the anti-rotation baffle plate 3. The anti-rotation baffle 31 can be arranged as a rectangular plate structure or composed of a plurality of baffle tooth structures. The anti-rotation baffle 31 can be arranged as needed, and as long as the same technical effect can be achieved, it is within the protection scope of this application.

[0046] It can be understood that on the basis of limiting the rotation of the special-shaped nut 2 around its own axis through the base 1 and the anti-rotation baffle 3, in order for the special-shaped nut 2 to cooperate with the threaded fastener to be installed, a first through hole 12 is provided at the bottom of the limiting groove 11, and the first through hole 12 penetrates along the thickness direction of the bottom of the limiting groove 11, and corresponds to the threaded hole of the special-shaped nut 2; accordingly, a second through hole 32 is provided on the surface of the anti-rotation baffle 3, and the second through hole 32 penetrates along the wall thickness direction of the anti-rotation baffle 3, and also corresponds to the threaded hole of the special-shaped nut 2.

[0047] During installation, the base 1 can be fixed on the component to be installed, such as using threaded fasteners to fix the base 1 and the component to be installed, so as to facilitate disassembly, assembly and replacement; the special-shaped nut 2 is placed in the limiting groove 11, and the anti-rotation baffle 3 is covered on the limiting groove 11 to fix the anti-rotation baffle 3 and the base 1; the limiting wall of the limiting groove 11 limits at least one group of comparisons of the special-shaped nut 2, and the anti-rotation baffle 31 of the anti-rotation baffle 3 limits the remaining edges of the special-shaped nut 2, thereby limiting the rotation of the special-shaped nut 2 around its own axis through the cooperation of the limiting groove 11 and the anti-rotation baffle 3, so as to facilitate the application of torque; at the same time, the anti-rotation baffle 3 limits the axial movement of the special-shaped nut 2, which is more conducive to the application of torque, simplifies the operator's hand-holding action, and simplifies the installation operation.

[0048] Preferably, the special-shaped nut 2 is a quadrilateral nut, and the limiting wall of the limiting groove 11 limits a set of opposite sides of the special-shaped nut 2; an anti-rotation stop 31 is respectively provided on both sides of the width direction of the anti-rotation baffle 3; its structure is simple and convenient to set. In a preferred embodiment, the special-shaped nut 2 is a parallelogram nut; the two limiting walls of the limiting groove 11 are arranged in parallel; the two anti-rotation stops 31 of the anti-rotation baffle 3 are arranged in parallel. In this way, the structure of the special-shaped nut 2 is more closely fitted, the limiting effect is improved, and processing is also facilitated.

[0049] In order to fix the base 1 and the component to be installed, the base 1 is provided with mounting holes 13 for cooperating with threaded fasteners, and there are two mounting holes 13, which are symmetrically arranged on the base 1. The base 1 cooperates with the threaded fasteners and the mounting holes 13 to achieve a detachable fixed connection with the component to be installed.

[0050] Furthermore, there are four special-shaped nuts 2; the four special-shaped nuts 2 are arranged in a mirror-symmetrical manner along the first direction center line of the base 1, the first direction center line is arranged in the horizontal direction, and the second direction center line described below is arranged in the vertical direction; the intersection of the first direction center line and the second direction center line is the center of the base 1, and the base 1 is preferably arranged as a rectangular plate structure, such as a square structure; the special-shaped nuts 2 are arranged in a mirror-symmetrical manner along the first direction center line of the base 1, that is, two special-shaped nuts 2 are arranged at the upper part of the first direction center line, and two special-shaped nuts 2 are arranged at the lower part of the first direction center line, and the four special-shaped nuts 2 are preferably arranged in a mirror-symmetrical manner along the center line of the base 1; the position of the special-shaped nuts 2 on the base 1 can be set as needed, and it will not be repeated here.

[0051] Among them, the surface of the base 1 is provided with a group of limiting bosses 14 on both sides of the center line of the first direction; any group of limiting bosses 14 includes two limiting bosses 14 arranged parallel to the center line of the first direction, and the two limiting bosses 14 and the base 1 form a limiting groove 11, specifically, the side walls of the two limiting bosses 14 and the surface of the base 1 form the limiting groove 11, and the limiting bosses 14 and the base 1 are preferably arranged in an integrated manner to further facilitate production and processing. Optionally, the two limiting bosses 14 pass through the base 1 in a direction parallel to the center line of the first direction; two special-shaped nuts 2 are arranged in each limiting groove 11, and the two special-shaped nuts 2 are symmetrically arranged along the center line of the second direction of the base 1; the center line of the first direction and the center line of the second direction are arranged perpendicularly. As described above, the center line of the second direction is arranged perpendicularly to the center line of the first direction, and the intersection is the center of the base 1, and two adjacent special-shaped nuts 2 of the four special-shaped nuts 2 are symmetrically arranged along the center line of the first direction or the center line of the second direction.

[0052] In order to realize the installation of the anti-rotation baffle plate 3 and the base 1, the top surfaces of the two limiting bosses 14 are respectively provided with baffle plate mounting holes 15, and the anti-rotation baffle plate 3 is fixed to the base 1 through threaded fasteners and the baffle plate mounting holes 15. The upper and lower ends of the anti-rotation baffle plate 3 are respectively provided with mounting holes corresponding to the baffle plate mounting holes 15, thereby realizing a detachable fixed connection between the anti-rotation baffle plate 3 and the base 1 through threaded fasteners, so as to facilitate disassembly and assembly.

[0053] In one embodiment, in order to make way for the components to be installed, a making way hole 16 is provided at the center of the base 1. The making way hole 16 is arranged as required to ensure the normal installation of the components to be installed.

[0054] Based on the anti-rotation device provided in the above embodiment, the present application also provides an anti-climbing energy absorption device, including:

[0055] Anti-climbing teeth;

[0056] Two sets of energy absorbing bodies provided on the stop beam of the rail vehicle are respectively located at the two ends of the anti-climbing teeth;

[0057] In the anti-rotation device of any of the above embodiments, the other end of the energy absorbing body is fixed to the stop beam of the rail vehicle via the anti-rotation device.

[0058] The clearance hole 16 of the anti-rotation device is used to make way for the energy absorbing body, which is fixed to the rail vehicle stop beam through a mounting seat. Four threaded fasteners are evenly arranged around the mounting seat. The anti-rotation device is arranged on the inner side of the rail vehicle stop beam. The threaded fasteners pass through the rail vehicle stop beam and are fixed to the special-shaped nut 2 to achieve anti-rotation. The base 1 is detachably fixedly connected to the rail vehicle stop beam through the mounting hole 13; the anti-rotation device can withstand a torque value of 300Nm and has an anti-rotation function; after the anti-rotation device is installed, unilateral disassembly can be achieved without disassembling or fixing the anti-rotation device, thereby improving installation efficiency and saving labor and tool costs. At the same time, for narrow spaces, the use of this anti-rotation device also avoids the operation of disassembling a large number of related components, saving a lot of time and labor costs.

[0059] The present application also provides a rail vehicle including the above-mentioned anti-climbing energy absorption device. Since the above-mentioned anti-climbing energy absorption device has the above-mentioned technical effects, the rail vehicle having the anti-climbing energy absorption device should also have corresponding technical effects.

[0060] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0061] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. An anti-rotation device, characterized in that: Including a base, a special-shaped nut and an anti-rotation baffle; The surface of the base is provided with a limiting groove for accommodating the special-shaped nut, the limiting groove has at least one set of limiting walls arranged opposite to each other, for limiting at least one set of opposite sides of the special-shaped nut, and the bottom of the limiting groove is provided with a first through hole corresponding to the threaded hole of the special-shaped nut; The anti-rotation baffle cover is arranged above the limiting groove and is detachably fixedly connected to the base; the surface of the anti-rotation baffle close to the limiting groove has an anti-rotation baffle extending into the limiting groove, which is used to limit the remaining edges of the special-shaped nut; the anti-rotation baffle is provided with a second through hole corresponding to the threaded hole of the special-shaped nut.

2. The anti-rotation device according to claim 1, characterized in that: The special-shaped nut is a quadrilateral nut; The limiting wall of the limiting groove limits a group of opposite sides of the special-shaped nut; and an anti-rotation baffle is respectively provided on both sides in the width direction of the anti-rotation baffle.

3. The anti-rotation device according to claim 1, characterized in that: The base is provided with a mounting hole for cooperating with a threaded fastener.

4. The anti-rotation device according to claim 2, characterized in that: The special-shaped nut is a parallelogram nut; The two limiting walls of the limiting groove are arranged in parallel; the two anti-rotation baffles of the anti-rotation baffle are arranged in parallel.

5. The anti-rotation device according to claim 1, characterized in that: There are four special-shaped nuts; the four special-shaped nuts are arranged in mirror symmetry along the center line of the first direction of the base.

6. The anti-rotation device according to claim 5, characterized in that: A group of limiting bosses are respectively provided on the surface of the base along both sides of the center line of the first direction; Any group of the limiting bosses includes two limiting bosses arranged parallel to the center line of the first direction, and the two limiting bosses and the base form the limiting groove.

7. The anti-rotation device according to claim 6, characterized in that: The two limiting bosses respectively penetrate the base in directions parallel to the center line of the first direction; Two special-shaped nuts are arranged in each of the limiting grooves, and the two special-shaped nuts are symmetrically arranged along the second direction center line of the base; the first direction center line and the second direction center line are arranged vertically.

8. The anti-rotation device according to claim 6, characterized in that: The top surfaces of the two limiting bosses are respectively provided with baffle mounting holes, and the anti-rotation baffle is fixed to the base via threaded fasteners and the baffle mounting holes.

9. The anti-rotation device according to claim 1, characterized in that: A clearance hole for making way for components to be installed is arranged at the center of the base.

10. An anti-climbing energy absorption device, characterized in that: include: Anti-climbing teeth; Two groups of energy absorbing bodies provided on the stop beam of the rail vehicle are respectively located at two ends of the anti-climbing teeth; The anti-rotation device according to any one of claims 1 to 9, wherein the other end of the energy absorbing body is fixed to the stop beam of the rail vehicle via the anti-rotation device.

11. A rail vehicle, characterized in that: Including the anti-climbing energy absorption device as described in claim 10.

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