An adaptive anti-detachment device and its current collector

Abstract

The present invention discloses an adaptive anti-detachment device and its current collector. The adaptive anti-detachment device is connected between a sliding shoe and a swing rod base, and includes a connection seat arranged on the sliding shoe and a mounting seat arranged on the swing rod base. The connection seat and the mounting seat are fitted and connected, there is a gap between their fitting positions, and an elastic filler is filled in the gap, so that when the connection seat is stressed, it can swing relative to the mounting seat around an axis parallel to the arrangement direction of the sliding shoe, and can float relative to the mounting seat along the direction perpendicular to the swing axis. The adaptive anti-detachment device has the advantages of being simple and practical, having high connection strength, having a swing margin, and being able to compensate for the contact error between the sliding shoe and the power supply rail. The current collector using the above-mentioned adaptive anti-detachment device has the advantages of stable power-taking performance, extending the service life of the sliding shoe, and extending the vehicle maintenance cycle.

Description

Technical Field

[0001] The present invention relates to the field of current collectors, and particularly to an adaptive anti - detachment device and a current collector thereof. Background Art

[0002] A current collector is a device installed on a rail train that dynamically draws current by contacting a rigid power supply rail to supply power to the train. During the current - drawing process of the current collector, it is necessary to keep in contact with the power supply rail. However, factors such as the installation position error of the current collector, the manufacturing error of the power supply rail, the assembly error, and wear are likely to cause the problem that the sliding shoe of the current collector and the power supply rail surface are not parallel to each other. This not only causes poor contact, resulting in unstable power supply of the current collector, but also causes uneven wear of the sliding shoe of the current collector, reduces the service life of the sliding shoe, increases economic losses, and shortens the vehicle maintenance cycle.

[0003] Chinese Patent with Application No. 201721087263.6 discloses a double - pendulum - rod insulated current collector. A sliding - shoe buffer device is provided in this current collector, but the buffer device is made of rubber or polyurethane, etc. Such buffer devices themselves have the risk of aging. At the same time, under a large external force, the buffer device will break from the middle, resulting in the detachment of the sliding shoe, easily causing damage and failure of the current collector, and even causing damage to the vehicle body and the line, posing a great potential safety hazard. Summary of the Invention

[0004] The problem to be solved by the present invention is to provide, in view of the problems existing in the prior art, an adaptive anti - detachment device that is simple and practical, has high connection strength, has a swinging margin, and can compensate for the contact error between the sliding shoe and the power supply rail, and a current collector using the above - mentioned adaptive anti - detachment device with stable power - taking performance, extended service life of the sliding shoe, and extended vehicle maintenance cycle.

[0005] To solve the above - mentioned technical problems, the technical solution proposed by the present invention is as follows:

[0006] An adaptive anti - detachment device is connected between a sliding shoe and a pendulum - rod base. The adaptive anti - detachment device includes a connecting seat provided on the sliding shoe and an installation seat provided on the pendulum - rod base. The connecting seat and the installation seat are fitted and connected. There is a gap between the fitting positions of the two, and an elastic filler is filled in the gap, so that when the connecting seat is stressed, it can swing relative to the installation seat around an axis parallel to the arrangement direction of the sliding shoe and can float relative to the installation seat in a direction perpendicular to the swinging axis.

[0007] As a further improvement of the above - mentioned adaptive anti - detachment device:

[0008] A limiting structure for preventing the connecting seat from detaching from the installation seat in a direction perpendicular to the arrangement direction of the sliding shoe is provided at the fitting position of the connecting seat and the installation seat.

[0009] The connecting seat includes a bushing disposed at the bottom of the sliding shoe. The mounting seat includes a mounting block and a hinge shaft. The mounting block is fixedly connected to the swing rod base, and the hinge shaft sequentially passes through the bushing and the mounting block along the arrangement direction of the sliding shoe. The inner hole of the bushing is larger than the outer diameter of the hinge shaft, and the elastic filler is filled between the bushing and the hinge shaft.

[0010] The connecting seat further includes an end cap. Two coaxially arranged and spaced bushings are provided at the bottom of the sliding shoe. The distance between them is adapted to the length of the mounting block along the arrangement direction of the sliding shoe. The two bushings are clamped at both ends of the mounting block, and end caps for sealing the shaft ends are provided at the outer ends of the two bushings.

[0011] The bushing is divided into an upper half bushing and a lower half bushing along the inner hole diameter. The lower half bushing is fixedly connected to the upper half bushing by fasteners, and the top end of the upper half bushing is fixedly connected to the bottom surface of the sliding shoe.

[0012] The connecting seat is a ring-shaped structure disposed at the bottom of the sliding shoe, and the mounting seat is a cylindrical structure disposed on the swing rod base. The lower half circle of the connecting seat penetrates through the inner hole of the mounting seat and is detachably connected to the upper half circle. The upper half circle and the lower half circle of the connecting seat sandwich the top wall of the cylindrical structure, and the elastic filler is filled in the clamping gap.

[0013] The mounting seat is a strip-shaped hole disposed on the swing rod base, and the connecting seat is a strip-shaped member disposed at the bottom of the sliding shoe. The strip-shaped member and the strip-shaped hole are both parallel to the arrangement direction of the sliding shoe. The inner wall cross-section of the strip-shaped hole is larger than the cross-section of the strip-shaped member, and the elastic filler is filled in the gap between them.

[0014] Multiple concave card slots are provided on two side walls adjacent to the bottom wall in the strip-shaped hole. Protruding ribs are provided at positions corresponding to the card slots on the strip-shaped member, and the strip-shaped member is limited perpendicular to the arrangement direction of the sliding shoe by the ribs being snapped into the card slots.

[0015] The connecting seat further includes a boss. The strip-shaped hole penetrates through the swing rod base in a direction perpendicular to the arrangement direction of the sliding shoe. The bottom side of the strip-shaped member extends out of the strip-shaped hole and is connected to the boss, and the width of the boss is greater than the width of the strip-shaped hole.

[0016] A current collector includes a sliding shoe and a swing rod base, and further includes the above-mentioned adaptive anti-detachment device, an insulating base, a stretching assembly, and at least one swing rod. One end of the swing rod is hinged to the insulating base, and the other end is hinged to the swing rod base. The stretching assembly is connected between the swing rod and the insulating base, and the sliding shoe is kept in contact with the power supply rail by the stretching force.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] During the specific application of the current collector, the slider may be non-parallel to the power supply rail due to certain errors. In this case, if power is taken directly in contact, the wear degree of the slider will be aggravated. The present invention provides an adaptive anti-detachment device, which is connected between the slider and the swing rod base, including a connecting seat arranged on the slider and a mounting seat arranged on the swing rod base. The connecting seat and the mounting seat are fitted and connected, and there is a gap between the two at the fitting position, and an elastic filler is filled in the gap. This setting method not only has a fitting connection relationship to avoid the accident that the slider is detached from the swing rod base when the filler ages and breaks and there is no longer a connecting object between them, but also is different from the traditional rigid connection. By combining the gap and the elastic filler, a movement margin is left, so that when the connecting seat is stressed, it can swing relative to the mounting seat around an axis parallel to the arrangement direction of the slider and can float relative to the mounting seat in the direction perpendicular to the swing axis, and has a yaw self-correcting force. When the current collector using the device of the present invention encounters the situation that the slider is non-parallel to the power supply rail, the contact between the slider and the power supply rail causes the adaptive anti-detachment device to swing, automatically compensating for various errors, preventing excessive wear, and at the same time ensuring stable contact performance, so that the current collector can draw a more stable current for vehicle use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the current collector of the present invention;

[0020] Figure 2 and Figure 4 is a schematic structural diagram of the adaptive anti-detachment device in Embodiment 1;

[0021] Figure 3 and Figure 5 is a cross-sectional schematic diagram of the adaptive anti-detachment device in Embodiment 1 along the radial direction of the bushing;

[0022] Figure 6 is a cross-sectional schematic diagram of the elastic filler of the adaptive anti-detachment device in Embodiment 1;

[0023] Figure 7 is a cross-sectional schematic diagram of the adaptive anti-detachment device in Embodiment 2;

[0024] Figure 8 is a cross-sectional schematic diagram of the adaptive anti-detachment device in Embodiment 3;

[0025] Figure 9 is a cross-sectional schematic diagram of the adaptive anti-detachment device in Embodiment 4.

[0026] Legend: 1. Slipper; 2. Rocker base; 3. Connecting seat; 31. Bushing; 311. Upper sleeve; 312. Lower sleeve; 32. End cover; 33. Lower half circle; 34. Upper half circle; 35. Strip; 351. Rib; 36. Boss; 4. Mounting seat; 41. Mounting block; 42. Hinge shaft; 43. Cylindrical structure; 44. Strip hole; 441. Slot; 5. Elastic filler; 51. Filling strip; 52. Outer sleeve; 53. Inner sleeve; 6. Insulating base; 7. Rocker. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively and meticulously below in conjunction with the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments.

[0028] Embodiment 1:

[0029] like Figure 2 and Figure 3 As shown, the adaptive anti-falling device of this embodiment is connected between the sliding shoe 1 and the swing arm base 2. The adaptive anti-falling device includes a connecting seat 3 arranged on the sliding shoe 1 and a mounting seat 4 arranged on the swing arm base 2. The connecting seat 3 and the mounting seat 4 are connected in a chimeric manner, and there is a gap between the two at the chimeric position. In this embodiment, the gap is parallel to the arrangement direction of the sliding shoe 1, and the gap is filled with an elastic filler 5. This arrangement method has a chimeric connection relationship, which avoids the accident that the sliding shoe 1 is separated from the swing arm base 2 after the elastic filler 5 is aged and broken; and it is different from the traditional rigid connection. The gap and the elastic filler 5 are combined to leave a movable margin, so that the connecting seat 3 can swing relative to the mounting seat 4 around an axis parallel to the arrangement direction of the sliding shoe 1 when subjected to force, and can float relative to the mounting seat 4 in the direction perpendicular to the swing axis, and has a sway self-correcting force. When the current collector of the device of this embodiment is used, when the sliding shoe 1 is not parallel to the power rail, the sliding shoe 1 contacts the power rail to cause the adaptive anti-dropping device to swing, automatically compensate for errors at various locations, prevent excessive wear, and ensure stable contact performance, so that the current collector can draw a more stable current for the vehicle. In this embodiment, the deflection force of the adaptive anti-dropping device in response to the force can also be adjusted by adjusting the physical properties of the filler.

[0030] In this embodiment, a limiting structure is provided at the mating position of the connecting seat 3 and the mounting seat 4 to prevent the connecting seat 3 from detaching from the mounting seat 4 along a direction perpendicular to the arrangement direction of the sliding shoe 1, further limiting the possibility of the sliding shoe 1 detaching and improving the reliability of the movable connection between the connecting seat 3 and the mounting seat 4.

[0031] In this embodiment, the connecting seat 3 includes a bushing 31 provided at the bottom of the sliding shoe 1, and the mounting seat 4 includes a mounting block 41 and a hinge shaft 42. The mounting block 41 is fixedly connected to the swing rod base 2, and the hinge shaft 42 sequentially passes through the bushing 31 and the mounting block 41 along the arrangement direction of the sliding shoe 1; the hinge shaft 42 and the bushing 31 are connected as a fitting structure, enabling the sliding shoe 1 to rotate around the hinge shaft 42. Among them, in order to leave a margin for movement, the inner hole of the bushing 31 is larger than the outer diameter of the hinge shaft 42, and an elastic filler 5 is filled between the bushing 31 and the hinge shaft 42, enabling elastic reset function for the movement between the two. In this embodiment, the connecting seat 3 includes a plate-like structure, with the bushing 31 provided on one side plane, and the sliding shoe 1 is detachably connected to the other side plane through fasteners such as bolts. Anti-loosening washers and anti-loosening nuts can be used for fastening and anti-loosening, or other anti-loosening fastening measures.

[0032] In this embodiment, the connecting seat 3 further includes an end cap 32. Two coaxially arranged and spaced bushings 31 are provided at the bottom of the sliding shoe 1, and the distance between the two is adapted to the length of the mounting block 41 along the arrangement direction of the sliding shoe 1. The two bushings 31 are clamped at both ends of the mounting block 41, and end caps 32 for blocking the shaft ends are provided at the outer ends of the two bushings 31 to prevent the hinge shaft 42 from coming out. In this embodiment, the hinge shaft 42 is a square shaft (it can also be circular, pentagonal, hexagonal, trapezoidal, etc.), and a square hole is provided on the mounting block 41. End caps 32 are first installed at both ends of the square shaft, and then anti-loosening washers and anti-loosening nuts are used for fixing and anti-loosening.

[0033] In this embodiment, the elastic filler 5 can be a cylindrical object provided between the hinge shaft 42 and the bushing 31, such as Figure 2 and Figure 3 shown. It can also include an outer sleeve 52, an inner sleeve 53 and a filling strip 51. The outer sleeve 52 is connected to the bushing 31, the inner sleeve 53 is connected to the hinge shaft 42, and the filling strip 51 is clamped between the inner sleeve 53 and the outer sleeve 52, such as Figure 4 , Figure 5 and Figure 6 shown.

[0034] In this embodiment, in order to facilitate the installation and disassembly of the connecting seat 3 and the mounting seat 4, the bushing 31 is divided into an upper half sleeve 311 and a lower half sleeve 312 along the inner hole diameter. The lower half sleeve 312 is fixedly connected to the upper half sleeve 311 through fasteners, and the top end of the upper half sleeve 311 is fixedly connected to the bottom surface of the sliding shoe 1, or the bottom surface of the plate-like structure of the connecting seat 3.

[0035] The current collector of this embodiment, such as Figure 1As shown in the figure, it includes a slipper 1 and a pendulum base 2, and also includes the above-mentioned self-adaptive anti-detachment device, an insulating base 6, a stretching component, and at least one pendulum 7. One end of the pendulum 7 is hinged to the insulating base 6, and the other end is hinged to the pendulum base 2, connected by a pin shaft, and fastened and anti-loosened with a lock washer and a lock nut. An open pin can also be used for anti-detachment treatment at the shaft end. The pendulum 7, the insulating base 6, and the pendulum base 2 form a movable quadrilateral structure. The stretching component is connected between the pendulum 7 and the insulating base 6, and the slipper 1 is kept in contact with the power supply rail through the stretching force. The other components of the current collector in this embodiment are the same as those of the existing conventional current collector except for the self-adaptive anti-detachment device, so the specific structure will not be elaborated here.

[0036] Embodiment 2:

[0037] This embodiment is basically the same as Embodiment 1, and the difference is that, as Figure 7 shown in the figure, in this embodiment, the connecting seat 3 is a ring-shaped structure arranged at the bottom of the slipper 1, and the mounting seat 4 is a cylindrical structure 43 arranged on the pendulum base 2. The lower half circle 33 of the connecting seat 3 penetrates the inner hole of the mounting seat 4 and is detachably connected to the upper half circle 34. The upper half circle 34 and the lower half circle 33 of the connecting seat 3 sandwich the top wall of the cylindrical structure 43, and an elastic filler 5 is filled in the clamping gap. In this embodiment, the detachment limit of the connecting seat 3 is realized by surrounding the circle of the cylindrical structure 43, and under the action of the elastic filler 5 and the gap, the connecting seat 3 can swing around the lower half circle 33 to a certain extent and float radially along the cylindrical structure 43. The detachable connection method of the lower half circle 33 and the upper half circle 34 facilitates the installation and disassembly of the connecting seat 3 and the mounting seat 4.

[0038] Embodiment 3:

[0039] This embodiment is basically the same as Embodiment 2, and the difference is that, as Figure 8 shown in the figure, in this embodiment, the mounting seat 4 is a strip-shaped hole 44 arranged on the pendulum base 2, and the connecting seat 3 is a strip-shaped member 35 arranged at the bottom of the slipper 1. The strip-shaped member 35 and the strip-shaped hole 44 are both parallel to the arrangement direction of the slipper 1. The inner wall section of the strip-shaped hole 44 is larger than the section of the strip-shaped member 35, and an elastic filler 5 is filled in the gap between the two.

[0040] In this embodiment, for the detachment limit between the two, a plurality of concave clamping grooves 441 are provided on the two side walls adjacent to the bottom wall in the strip-shaped hole 44, and protruding ribs 351 are provided on the strip-shaped member 35 at the positions corresponding to the clamping grooves 441. The strip-shaped member 35 is limited perpendicular to the arrangement direction of the slipper 1 by the ribs 351 being clamped into the clamping grooves 441.

[0041] Embodiment 4:

[0042] This embodiment is basically the same as Embodiment 3, and the difference is that, as Figure 9As shown in the figure, in this embodiment, the connecting seat 3 further includes a boss 36. The strip-shaped hole 44 penetrates through the swing rod base 2 in a direction perpendicular to the arrangement direction of the sliding shoe 1. The bottom side of the strip-shaped member 35 extends out of the strip-shaped hole 44 and is connected to the boss 36. The width of the boss 36 is greater than the width of the strip-shaped hole 44, and the connecting seat 3 is limited from being disengaged by the boss 36.

[0043] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the improvements and transformations obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An adaptive anti-detachment device is connected between a sliding shoe (1) and a swing rod base (2). It is characterized in that: The adaptive anti-detachment device includes a connecting seat (3) arranged on the sliding shoe (1) and a mounting seat (4) arranged on the swing rod base (2). The connecting seat (3) and the mounting seat (4) are fitted and connected. There is a gap between their fitting positions, and an elastic filler (5) is filled in the gap, so that when the connecting seat (3) is stressed, it can swing relative to the mounting seat (4) around an axis parallel to the arrangement direction of the sliding shoe (1), and can float relative to the mounting seat (4) in a direction perpendicular to the swing axis. A limiting structure for preventing the connecting seat (3) from detaching from the mounting seat (4) perpendicular to the arrangement direction of the sliding shoe (1) is provided at the fitting position of the connecting seat (3) and the mounting seat (4). The connecting seat (3) includes a bushing (31) arranged at the bottom of the sliding shoe (1). The mounting seat (4) includes a mounting block (41) and a hinge shaft (42). The mounting block (41) is fixedly connected to the swing rod base (2), and the hinge shaft (42) sequentially passes through the bushing (31) and the mounting block (41) along the arrangement direction of the sliding shoe (1); the inner hole of the bushing (31) is larger than the outer diameter of the hinge shaft (42), and the elastic filler (5) is filled between the bushing (31) and the hinge shaft (42).

2. The adaptive anti-detachment device according to claim 1, It is characterized in that: The connecting seat (3) further includes an end cover (32). Two coaxially arranged and spaced bushings (31) are provided at the bottom of the sliding shoe (1). The distance between them is adapted to the length of the mounting block (41) along the arrangement direction of the sliding shoe (1). The two bushings (31) are clamped at both ends of the mounting block (41), and end covers (32) for blocking the shaft ends are provided at the outer ends of the two bushings (31).

3. The adaptive anti-detachment device according to claim 2, It is characterized in that: The bushing (31) is divided into an upper half bushing (311) and a lower half bushing (312) along the inner hole diameter. The lower half bushing (312) is fixedly connected to the upper half bushing (311) through a fastener, and the top end of the upper half bushing (311) is fixedly connected to the bottom surface of the sliding shoe (1).

4. The adaptive anti-detachment device according to claim 1, It is characterized in that: The connecting seat (3) is a ring-shaped structure arranged at the bottom of the sliding shoe (1), and the mounting seat (4) is a cylindrical structure (43) arranged on the swing rod base (2). The lower half circle (33) of the connecting seat (3) passes through the inner hole of the mounting seat (4) and is detachably connected to the upper half circle (34). The upper half circle (34) and the lower half circle (33) of the connecting seat (3) sandwich the top wall of the cylindrical structure (43), and the elastic filler (5) is filled in the sandwiching gap.

5. The adaptive anti-detachment device according to claim 1, It is characterized in that: The mounting base (4) is a strip-shaped hole (44) provided on the swing rod base (2), the connecting seat (3) is a strip-shaped member (35) provided at the bottom of the sliding shoe (1), both the strip-shaped member (35) and the strip-shaped hole (44) are parallel to the arrangement direction of the sliding shoe (1), the inner wall cross-section of the strip-shaped hole (44) is larger than the cross-section of the strip-shaped member (35), and the elastic filler (5) is filled in the gap between the two.

6. The self-adaptive anti-detachment device according to claim 5, characterized in that: A plurality of concave clamping grooves (441) are provided on two side walls adjacent to the bottom wall in the strip-shaped hole (44), protruding rib strips (351) are provided at positions corresponding to the clamping grooves (441) on the strip-shaped member (35), and the strip-shaped member (35) is limited perpendicular to the arrangement direction of the sliding shoe (1) by the rib strips (351) being snapped into the clamping grooves (441).

7. The self-adaptive anti-detachment device according to claim 5, characterized in that: The connecting seat (3) further includes a convex platform (36), the strip-shaped hole (44) penetrates the swing rod base (2) in a direction perpendicular to the arrangement direction of the sliding shoe (1), the bottom side of the strip-shaped member (35) extends out of the strip-shaped hole (44) and is connected to the convex platform (36), and the width of the convex platform (36) is greater than the width of the strip-shaped hole (44).

8. A current collector, comprising a sliding shoe (1) and a swing rod base (2), characterized in that: It further includes the self-adaptive anti-detachment device according to any one of claims 1 to 7, an insulating base (6), a stretching assembly, and at least one swing rod (7), one end of the swing rod (7) is hinged to the insulating base (6), the other end is hinged to the swing rod base (2), and the stretching assembly is connected between the swing rod (7) and the insulating base (6), and the sliding shoe (1) is kept in contact with the power supply rail by the stretching force.

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