CN113788044A - Magnetic suspension vehicle and brake clamp thereof - Google Patents
Magnetic suspension vehicle and brake clamp thereof Download PDFInfo
- Publication number
- CN113788044A CN113788044A CN202111181779.8A CN202111181779A CN113788044A CN 113788044 A CN113788044 A CN 113788044A CN 202111181779 A CN202111181779 A CN 202111181779A CN 113788044 A CN113788044 A CN 113788044A
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- brake
- dovetail
- insulating
- insulation
- pull rod
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- 239000000725 suspension Substances 0.000 title claims abstract description 38
- 238000009413 insulation Methods 0.000 claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 30
- 238000000576 coating method Methods 0.000 claims description 30
- 238000005339 levitation Methods 0.000 claims description 10
- 239000004677 Nylon Substances 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 8
- 229920001778 nylon Polymers 0.000 claims description 8
- 238000010892 electric spark Methods 0.000 abstract description 9
- 210000000080 chela (arthropods) Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H5/00—Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a magnetic suspension vehicle and a brake clamp thereof, wherein the brake clamp comprises two brake pads which are oppositely arranged; the clamp body is provided with a driving mechanism which can drive at least one brake pad to move so as to change the distance between the two brake pads; the driving mechanism comprises two dovetail plates which are oppositely arranged, one side of each dovetail plate is connected with the driving end of the driving mechanism through a dovetail chute, and the other side of each dovetail plate is provided with a brake pad; two pull rods hinged with the dovetail plates in a one-to-one correspondence manner; the first insulation structure is used for realizing the mutual insulation between the clamp body and the brake pad; and the second insulation structure realizes mutual insulation between the pull rod and the brake pad. The brake caliper carries out insulation treatment on the brake caliper, and the first insulation structure is utilized to realize the mutual insulation between the caliper body and the brake pad; the second insulation structure is used for realizing the mutual insulation between the pull rod and the brake pad, so that the charge of the vehicle body can be prevented from being led into the brake clamp, the problem that the clamp and the ground track form a conduction loop to generate electric sparks is solved, and the running safety of the magnetic suspension vehicle is further ensured.
Description
Technical Field
The invention relates to the technical field of magnetic suspension braking, in particular to a magnetic suspension vehicle and a braking clamp thereof.
Background
Magnetic levitation vehicles mostly use hydraulic clamps for vehicle braking. When the magnetic suspension vehicle runs, the magnetic suspension vehicle is in a suspension state, and the vehicle is not in contact with a ground track; the hydraulic clamp arranged on the suspension frame is easy to generate potential difference with a ground track, so that in the braking process, a brake pad (made of powder metallurgy materials) on the hydraulic clamp forms a conducting loop in the process of approaching and contacting the track to generate electric sparks. The high temperature formed by the electric spark can change the characteristics of the brake pad surface layer material, so that the abrasion loss is increased, even the braking performance of the vehicle is reduced, a major accident is caused, and the running safety of the magnetic suspension vehicle is influenced.
In summary, a technical problem to be solved by those skilled in the art is how to solve the problem of electric sparks generated when the clamp and the ground track form a conductive loop to ensure the safety of the operation of the magnetic levitation vehicle.
Disclosure of Invention
In view of the above, the present invention is directed to a magnetic levitation vehicle and a brake clamp thereof, so as to solve the problem that a conductive loop is formed between the clamp and a ground track to generate electric sparks, thereby ensuring the safety of the magnetic levitation vehicle in operation.
In order to achieve the purpose, the invention discloses the following technical scheme:
a brake clamp of a magnetic suspension vehicle comprises two brake pads which are oppositely arranged; the brake pad driving mechanism is used for driving at least one brake pad to move, so that the distance between the two brake pads is changed; the brake pad is arranged on the other side of the dovetail plate; the two pull rods are hinged with the dovetail plates in a one-to-one correspondence mode and are used for being connected with a vehicle body of the magnetic suspension vehicle; further comprising:
the first insulation structure is used for realizing the mutual insulation between the clamp body and the brake pad;
and the second insulation structure realizes the mutual insulation between the pull rod and the brake pad.
Preferably, in the brake caliper, the first insulating structure is provided between the dovetail slide and the caliper body.
Preferably, in the brake clamp, the first insulating structure includes a dovetail groove insulating coating disposed on a surface of the dovetail groove except the sliding groove surface, and the dovetail groove insulating coating is resistant to temperature of more than 200 ℃ and has a thickness of less than 1 mm.
Preferably, in the braking clamp, the clamp body is provided with a guide post for guiding the movement direction of the brake pad, the guide post slidably passes through the guide hole of the clamp body, one end of the guide post is connected with the dovetail sliding groove, and the other end of the guide post is provided with a positioning table for avoiding separation from the guide hole;
the drive mechanism includes:
the hydraulic cylinder drives the brake pads to move towards a braking direction capable of reducing the distance between the two brake pads, a piston rod of the hydraulic cylinder is connected with the dovetail sliding groove, and the guide column is parallel to the axis of the piston rod;
the spring drives the brake pad to move in the direction opposite to the braking direction, and the spring is sleeved outside the guide post and positioned between the caliper body and the positioning table;
the first insulation structure can also realize the mutual insulation between the guide column and the clamp body.
Preferably, in the brake clamp, the first insulating structure includes a guide post insulating coating disposed on a surface of the guide post except for a portion connected with the dovetail sliding groove, and the guide post insulating coating is resistant to 120 ℃.
Preferably, in the brake clamp, one end of the dovetail plate is arranged in a connecting groove of the pull rod and is rotatably connected with the pull rod through a connecting pin, and the rotating pin is rotatably matched with the dovetail plate through a bearing;
the second insulating structure includes:
the insulating sleeve is sleeved between the connecting pin and the inner wall of the pin hole of the pull rod;
an insulating cylinder disposed within the bearing;
the insulating gasket is arranged between the bearing and the groove surface of the connecting groove, and the insulating gasket is sleeved on the connecting pin.
Preferably, in the brake clamp, the insulating sleeve is a glass fiber reinforced nylon sleeve, the insulating cylinder is a rubber cylinder, and the insulating gasket is a glass fiber reinforced nylon gasket.
Preferably, in the brake caliper, the second insulating structure further includes:
the pull rod insulating coating is arranged on the whole surface of the end part of the pull rod, which is used for being connected with the dovetail plate, and the heat resistance of the pull rod insulating coating is more than 120 ℃, and the thickness of the pull rod insulating coating is less than 1 mm.
Preferably, in the brake caliper, the first insulating structure and the second insulating structure make a minimum electrical gap of the brake caliper 14mm and a minimum creepage distance of 19 mm.
According to the technical scheme, the brake clamp of the magnetic suspension vehicle is subjected to insulation treatment, the first insulation structure is utilized to realize the mutual insulation between the clamp body and the brake pad, and the charge on the clamp body can be prevented from being transferred to the brake pad; the second insulation structure is utilized to realize the mutual insulation between the pull rod and the brake pad, and the charge of the pull rod can be prevented from being transferred to the brake pad, so that the charge of a vehicle body is prevented from being introduced into the brake clamp, the insulation requirement under the condition of the maximum working voltage (360V) of the suspension controller can be met, the problem that the clamp and a ground track form a conduction loop to generate electric sparks is solved, and the running safety of the magnetic suspension vehicle is further ensured.
The invention also discloses a magnetic suspension vehicle, which comprises a vehicle body and the brake clamp arranged on the vehicle body, wherein the brake clamp is any one of the brake clamps, and the magnetic suspension vehicle with the brake clamp has the same effect due to the effect of the brake clamp, so the description is omitted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic perspective view of a brake caliper of a magnetic levitation vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic view of the location of the dovetail slot insulating coating disclosed in the embodiments of the present invention;
FIG. 3 is a schematic view of the position of the insulating coating of the guide post according to the embodiment of the present invention;
FIG. 4 is a schematic view of a dovetail plate and pull rod connection structure according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a dovetail plate according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention discloses a magnetic suspension vehicle and a brake clamp thereof, which solve the problem that a conductive loop is formed between the clamp and a ground track to generate electric sparks, and further ensure the running safety of the magnetic suspension vehicle.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the brake caliper of a magnetic levitation vehicle disclosed in the embodiment of the present invention includes two brake pads 7 disposed opposite to each other; the magnetic suspension type brake caliper comprises a caliper body 1 arranged on a suspension frame of a magnetic suspension vehicle, wherein a driving mechanism capable of driving at least one brake pad 7 to move so as to change the distance between the two brake pads 7 is arranged on the caliper body 1; the two dovetail plates 5 are oppositely arranged, one side of each dovetail plate 5 is connected with the driving end of the driving mechanism through a dovetail chute 4, and the other side of each dovetail plate 5 is provided with a brake pad 7; the two pull rods 6 are correspondingly hinged with the dovetail plates 5 one by one, and the pull rods 6 are used for being connected with a vehicle body of the magnetic suspension vehicle; the insulating structure also comprises a first insulating structure for realizing the mutual insulation between the clamp body 1 and the brake pad 7; and a second insulation structure for realizing mutual insulation between the pull rod 6 and the brake pad 7.
When the brake clamp is applied, the clamp body 1 is connected with a suspension bracket of a magnetic suspension vehicle, and the pull rod 6 is connected with a vehicle body of the magnetic suspension vehicle, so that when the magnetic suspension vehicle runs, electric charges of the magnetic suspension vehicle can be transferred to the clamp body 1 and the pull rod 6 of the brake clamp.
According to the technical scheme, the brake clamp of the magnetic levitation vehicle is subjected to insulation treatment, the first insulation structure is utilized to realize the mutual insulation between the clamp body 1 and the brake pad 7, and the charge on the clamp body 1 can be prevented from being transferred to the brake pad 7; the second insulation structure is utilized to realize the mutual insulation between the pull rod 6 and the brake pad 7, and the charge of the pull rod 6 can be prevented from being transferred to the brake pad 7, so that the charge of a vehicle body is prevented from being introduced into the brake clamp, the insulation requirement under the condition of the maximum working voltage (360V) of the suspension controller can be met, the problem that the clamp and a ground track form a conduction loop to generate electric sparks is solved, and the running safety of the magnetic suspension vehicle is further ensured.
For the brake clamp, when the insulating material is selected, the working condition is combined, and the comprehensive properties of the material, such as strength, rigidity, wear resistance, temperature resistance and the like, are considered.
Preferably, the first insulating structure is arranged between the dovetail sliding groove 4 and the caliper body 1. The invention realizes the mutual insulation between the clamp body 1 and the brake pad 7 by utilizing the insulation between the dovetail chute 4 and the clamp body 1, and can prevent the charge on the clamp body 1 from being transferred to the dovetail chute 4 and further prevent the charge from being transferred to the brake pad 7. It will be appreciated that the first insulating structure may also be provided between other adjacent parts between the caliper body 1 and the blade 7, such as between the blade 7 and the dovetail plate 5, etc., as long as it is possible to finally achieve the prevention of the charge on the caliper body 1 from being transferred to the blade 7.
To facilitate the insulation operation, the first insulation structure includes a dovetail slot insulation coating 41 provided on the surface of the dovetail slot 4 other than the slot face, as shown in fig. 2, the dovetail slot insulation coating 41 being resistant to temperatures > 200 ℃ and having a thickness < 1 mm. According to the heat capacity simulation calculation, 3 times of emergency braking are carried out continuously, and the maximum temperature of the dovetail chute 4 is about 190 ℃. In the embodiment, the dovetail chute insulating coating 41 with the temperature resistance higher than 200 ℃ is sprayed on the surfaces of the dovetail chutes 4 except the chute surfaces, so that the working performance can be ensured while the insulating requirement is met; the spraying thickness of the dovetail chute insulating coating 41 is less than 1mm, so that the cost is saved, and the assembly of the conventional brake clamp cannot be influenced.
The insulation between the dovetail chute 4 and the clamp body 1 is realized by using the dovetail chute insulation coating 41; alternatively, the first insulating structure may further include an insulating coating layer provided on a surface of the caliper body 1 in contact with the dovetail chute 4; an insulating plate or the like may be provided between the dovetail groove 4 and the caliper body 1.
In order to improve the accuracy of the movement direction of the brake pad 7, the caliper body 1 is provided with a guide post 2 for guiding the movement direction of the brake pad 7, the guide post 2 can slidably pass through a guide hole of the caliper body 1, one end of the guide post is connected with the dovetail chute 4, and the other end of the guide post is provided with a positioning table for avoiding being separated from the guide hole; the driving mechanism comprises a hydraulic cylinder which drives the brake pads 7 to move towards a braking direction which can reduce the distance between the two brake pads 7, a piston rod of the hydraulic cylinder is connected with the dovetail sliding groove 4, and the guide post 2 is parallel to the axis of the piston rod; the spring 3 drives the brake pad 7 to move towards the direction opposite to the braking direction, and the spring 3 is sleeved outside the guide post 2 and is positioned between the caliper body 1 and the positioning table; wherein, the first insulation structure can also realize the mutual insulation between the guide post 2 and the clamp body 1.
When the brake clamp is applied, the brake pads 7 are driven to move towards the braking direction by using the piston rods of the hydraulic cylinders, so that the distance between the two brake pads 7 is reduced to enable the two brake pads 7 to be matched with a ground track for the running of a magnetic suspension vehicle, at the moment, the guide columns 2 and the piston rods extend together, and the springs 3 are compressed; when the brake clamp needs to be detached from the ground track, the pressure of the hydraulic cylinder is unloaded, and the guide column 2 and the piston rod retract together under the action of the restoring force of the spring 3; therefore, in the moving process of the brake pad 7, the guide column 2 and the piston rod guide the movement direction of the brake pad 7 together, so that the working reliability is improved; the guide posts 2 can also assist in supporting the dovetail chutes 4, dovetail plates 5, and brake pads 7.
Because the guide post 2 is partly directly connected with the pincers body 1, and the other part is indirectly connected with the pincers body 1 through the spring 3, utilize first insulation structure to realize the mutual insulation between guide post 2 and the pincers body 1, avoid the electric charge of the pincers body 1 to pass through guide post 2 and transmit dovetail sliding groove 4, and then prevent that electric charge from transmitting brake lining 7.
It is understood that the present invention may be provided without the guide post 2.
In a further technical scheme, the first insulation structure comprises a guide post insulation coating 21 arranged on the surface of the guide post 2 except the connection part with the dovetail chute 4, and the guide post insulation coating 21 can resist the temperature of 120 ℃, as shown in fig. 3. In the embodiment, on the contact surface of the guide post 2 and the clamp body 1 and the spring 3, the non-threaded part surface of the guide post 2 is sprayed with the temperature-resistant 120 ℃ insulating paint to form the guide post insulating coating 21, so that the working performance can be ensured while insulation is realized.
Of course, the present application can also directly provide the guide post 2 as an insulating post. The first insulating structure may further include an insulating plate disposed between the shutter 7 and the dovetail plate 5, which may prevent the electric charges of the conductive post and the clamp body 1 from being transferred to the shutter 7 at the same time.
As shown in fig. 4-5, one end of the dovetail plate 5 is disposed in the connecting groove of the pull rod 6 and is rotatably connected with the pull rod 6 through a connecting pin 8, and the rotating pin is rotatably engaged with the dovetail plate 5 through a bearing 10; the second insulation structure comprises an insulation sleeve 9 sleeved between the connecting pin 8 and the inner wall of the pin hole of the pull rod 6; an insulating cylinder 11 disposed inside the bearing 10; and the insulating gasket is arranged between the bearing 10 and the groove surface of the connecting groove, and is sleeved on the connecting pin 8.
The second insulation structure of this embodiment utilizes insulating cover 9, insulating cylinder 11 and insulating gasket, has realized the insulation between dovetail 5 and the pull rod 6 to realize the mutual insulation between pull rod 6 and the brake lining 7, can prevent that the electric charge on the pull rod 6 from transmitting to dovetail 5, and then prevent that the electric charge from transmitting to brake lining 7. It will be appreciated that the second insulating structure may also be provided between other adjacent components between the pull rod 6 and the brake pad 7, such as between the brake pad 7 and the dovetail 5, as long as it is ultimately achieved that the charge on the pull rod 6 is prevented from being transferred to the brake pad 7.
Preferably, the insulating sleeve 9 is a glass fiber reinforced nylon sleeve, the insulating cylinder 11 is a rubber cylinder, and the insulating gasket is a glass fiber reinforced nylon gasket. The glass fiber reinforced nylon sleeve and the glass fiber reinforced nylon gasket are adopted between the dovetail plate 5 and the pull rod 6, so that the dovetail plate 5 and the pull rod 6 can be insulated, and meanwhile, the better wear resistance and the higher compressive strength are ensured, the dovetail plate is better suitable for the rotating occasions of the dovetail plate 5 and the pull rod 6, and the working performance is improved; meanwhile, the rubber cylinder is arranged in the inner slide way of the bearing 10, so that the insulation performance can be improved while the smooth rotation of the dovetail plate 5 and the pull rod 6 is ensured.
It is understood that other materials capable of achieving the insulating function and ensuring the working performance can be adopted for each insulating structure.
In order to further optimize the technical scheme, the second insulation structure further comprises a pull rod insulation coating 61 arranged on the whole surface of the end part of the pull rod 6 used for being connected with the dovetail plate 5, the heat resistance of the pull rod insulation coating 61 is more than 120 ℃, and the thickness of the pull rod insulation coating is less than 1 mm. In the embodiment, on the basis of the insulation structures, the whole surface (including the inner wall of the pin hole of the pull rod 6) of the end part of the pull rod 6 for connecting with the dovetail plate 5 is coated with the pull rod insulation coating 61 which can resist heat of more than 120 ℃, so that the insulation effect is further improved.
The spraying thickness of the pull rod insulating coating 61 is less than 1mm, the cost is saved, and the assembly of the existing brake clamp cannot be influenced.
Alternatively, the present invention may also spray an insulating coating on the entire surface of the end of the dovetail plate 5 for connection to the tie rod 6.
The first insulating structure and the second insulating structure provided by the invention enable the minimum electric clearance of the brake clamp to be 14mm and the minimum creepage distance to be 19 mm. Specifically, the electric clearance and creepage distance of the end part of the dovetail chute 4, the electric clearance and creepage distance of the side surface of the dovetail chute 4, the electric clearance and creepage distance of the position of the guide post 2 and the electric clearance and creepage distance of the connecting end part of the pull rod 6 can all meet the insulation requirement.
Through the insulation treatment, the conductive parts are restricted to the dovetail plate 5 and the dovetail sliding groove 4, so that the insulation between the brake pad 7 and the caliper body 1 and between the brake pad 7 and the pull rod 6 are realized, and the insulation requirement under the condition of the maximum working voltage (360V) of the suspension controller can be met.
The brake clamp subjected to insulation treatment can be applied to various types of magnetic levitation vehicles without considering whether the whole vehicle is grounded or not, and the applicability and the practicability of the brake clamp are better than those of the original product. In addition, the improvement cost of the insulation treatment is low, the improvement process is simple, and the existing running vehicle is convenient to upgrade and reform.
The embodiment of the invention also discloses a magnetic suspension vehicle, which comprises a vehicle body and a brake clamp arranged on the vehicle body, wherein the brake clamp is provided by any one of the embodiments, so that the problem that electric sparks are generated when a conduction loop is formed between the clamp and a ground track is solved, and the running safety of the magnetic suspension vehicle is further ensured.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A brake caliper of a magnetic levitation vehicle comprises two brake pads (7) which are oppositely arranged; the clamp body (1) is arranged on a suspension frame of a magnetic suspension vehicle, and a driving mechanism capable of driving at least one brake pad (7) to move is arranged on the clamp body (1) so as to change the distance between the two brake pads (7); the brake comprises two opposite dovetail plates (5), one side of each dovetail plate (5) is connected with the driving end of the driving mechanism through a dovetail sliding groove (4), and the other side of each dovetail plate is provided with a brake pad (7); the two pull rods (6) are hinged with the dovetail plates (5) in a one-to-one correspondence mode, and the pull rods (6) are used for being connected with a vehicle body of the magnetic suspension vehicle; it is characterized by also comprising:
the first insulation structure is used for realizing mutual insulation between the clamp body (1) and the brake pad (7);
and a second insulation structure for realizing mutual insulation between the pull rod (6) and the brake pad (7).
2. The brake caliper according to claim 1, characterized in that the first insulating structure is arranged between the dovetail slide (4) and the caliper body (1).
3. The brake clamp according to claim 2, characterized in that the first insulating structure comprises a dovetail slot insulating coating (41) provided on the surface of the dovetail slot (4) other than the slot face, the dovetail slot insulating coating (41) being temperature resistant > 200 ℃, with a thickness < 1 mm.
4. The brake caliper according to claim 3, characterized in that the caliper body (1) is provided with a guide post (2) for guiding the moving direction of the brake pad (7), the guide post (2) slidably passes through a guide hole of the caliper body (1), and one end of the guide post is connected with the dovetail sliding groove (4), and the other end of the guide post is provided with a positioning table for avoiding being separated from the guide hole;
the drive mechanism includes:
the hydraulic cylinder drives the brake pads (7) to move towards a braking direction capable of reducing the distance between the two brake pads (7), a piston rod of the hydraulic cylinder is connected with the dovetail sliding groove (4), and the guide column (2) is parallel to the axis of the piston rod;
the spring (3) drives the brake pad (7) to move in the direction opposite to the braking direction, and the spring (3) is sleeved on the guide column (2) and is positioned between the caliper body (1) and the positioning table;
the first insulation structure can also realize mutual insulation between the guide column (2) and the clamp body (1).
5. The brake caliper according to claim 4, characterized in that the first insulating structure comprises a guide post insulating coating (21) provided on the surface of the guide post (2) except for the portion connected with the dovetail slot (4), the guide post insulating coating (21) being resistant to 120 ℃.
6. Brake calliper according to claim 1, wherein the dovetail plate (5) has one end built into the connecting slot of the pull rod (6) and is rotatably connected to the pull rod (6) by means of a connecting pin (8) which is rotatably engaged with the dovetail plate (5) by means of a bearing (10);
the second insulating structure includes:
the insulating sleeve (9) is sleeved between the connecting pin (8) and the inner wall of the pin hole of the pull rod (6);
an insulating cylinder (11) disposed within the bearing (10);
the insulating gasket is arranged between the bearing (10) and the groove surface of the connecting groove, and the insulating gasket is sleeved on the connecting pin (8).
7. The brake caliper according to claim 6, characterized in that the insulating sleeve (9) is a glass fiber reinforced nylon sleeve, the insulating cylinder (11) is a rubber cylinder, and the insulating washer is a glass fiber reinforced nylon washer.
8. The brake caliper of claim 6 wherein the second insulating structure further comprises:
the pull rod insulating coating (61) is arranged on the whole surface of the end part of the pull rod (6) used for being connected with the dovetail plate (5), the heat resistance of the pull rod insulating coating (61) is more than 120 ℃, and the thickness of the pull rod insulating coating is less than 1 mm.
9. The brake caliper of claim 1 wherein the first and second insulative structures provide the brake caliper with a minimum electrical clearance of 14mm and a minimum creepage distance of 19 mm.
10. Magnetic levitation vehicle comprising a vehicle body and a brake caliper arranged on said vehicle body, characterized in that the brake caliper is a brake caliper according to any of claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111181779.8A CN113788044A (en) | 2021-10-11 | 2021-10-11 | Magnetic suspension vehicle and brake clamp thereof |
| PCT/CN2021/131771 WO2023060693A1 (en) | 2021-10-11 | 2021-11-19 | Magnetic levitation vehicle and brake clamp thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111181779.8A CN113788044A (en) | 2021-10-11 | 2021-10-11 | Magnetic suspension vehicle and brake clamp thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113788044A true CN113788044A (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111181779.8A Pending CN113788044A (en) | 2021-10-11 | 2021-10-11 | Magnetic suspension vehicle and brake clamp thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113788044A (en) |
| WO (1) | WO2023060693A1 (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1402923A (en) * | 1972-09-29 | 1975-08-13 | Klaue H | Brakes |
| CN1048086A (en) * | 1989-06-12 | 1990-12-26 | 卢卡斯工业有限公司 | Single caliper disc brake that unsteady caliper and pressure plate are arranged |
| EP1604127A1 (en) * | 2003-03-20 | 2005-12-14 | Lucas Automotive Gmbh | Disk brake with brake linings guided on bolts |
| JP2009254099A (en) * | 2008-04-04 | 2009-10-29 | Jamco Corp | Normal conducting attraction type magnetic leviation vehicle |
| CN201496443U (en) * | 2009-07-03 | 2010-06-02 | 西安宏信矿热炉有限公司 | Belleville spring type internal contracting brake |
| CN203358610U (en) * | 2013-05-27 | 2013-12-25 | 北京纵横机电技术开发公司 | Disc brake clamp device for rail car |
| CN105346555A (en) * | 2015-11-24 | 2016-02-24 | 唐山轨道客车有限责任公司 | Brake clamp device of magnetic levitation vehicle |
| CN205632516U (en) * | 2016-04-29 | 2016-10-12 | 同济大学 | Well low -speed maglev arresting gear for train |
| WO2018000895A1 (en) * | 2016-06-30 | 2018-01-04 | 北京北摩高科摩擦材料股份有限公司 | Elastic adjustable brake pad for use in train |
| CN108799364A (en) * | 2018-07-12 | 2018-11-13 | 中铁磁浮科技（成都）有限公司 | Magnetic-levitation train brake clamp |
| CN111075865A (en) * | 2019-12-27 | 2020-04-28 | 北京北摩高科摩擦材料股份有限公司 | Adjustable brake pad for train |
| CN111609061A (en) * | 2020-05-27 | 2020-09-01 | 中车青岛四方车辆研究所有限公司 | Lever hanging bracket of brake clamp unit |
| CN112208341A (en) * | 2020-11-13 | 2021-01-12 | 北京天佑新辔高新技术有限公司 | Electromechanical brake for superconducting magnetic levitation vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3697492B2 (en) * | 1995-10-31 | 2005-09-21 | 中部エイチ・エス・エス・ティ開発株式会社 | Magnetic levitation railway brake system |
| AT507509A3 (en) * | 2008-10-22 | 2012-02-15 | Siemens Ag Oesterreich | DISC BRAKE FOR A RAIL VEHICLE WITH AN ELECTRICALLY INSULATED BRAKE PAD HOLDER |
| CN104176085A (en) * | 2014-09-22 | 2014-12-03 | 南车株洲电力机车有限公司 | Railway vehicle and brake pull rod device thereof |
| CN104442913A (en) * | 2014-12-01 | 2015-03-25 | 南车株洲电力机车有限公司 | Railway vehicle monitoring device |
| CN205131257U (en) * | 2015-07-24 | 2016-04-06 | 天津市广山津达机械有限责任公司 | Well low -speed maglev train's arresting gear |
-
2021
- 2021-10-11 CN CN202111181779.8A patent/CN113788044A/en active Pending
- 2021-11-19 WO PCT/CN2021/131771 patent/WO2023060693A1/en unknown
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1402923A (en) * | 1972-09-29 | 1975-08-13 | Klaue H | Brakes |
| CN1048086A (en) * | 1989-06-12 | 1990-12-26 | 卢卡斯工业有限公司 | Single caliper disc brake that unsteady caliper and pressure plate are arranged |
| EP1604127A1 (en) * | 2003-03-20 | 2005-12-14 | Lucas Automotive Gmbh | Disk brake with brake linings guided on bolts |
| JP2009254099A (en) * | 2008-04-04 | 2009-10-29 | Jamco Corp | Normal conducting attraction type magnetic leviation vehicle |
| CN201496443U (en) * | 2009-07-03 | 2010-06-02 | 西安宏信矿热炉有限公司 | Belleville spring type internal contracting brake |
| CN203358610U (en) * | 2013-05-27 | 2013-12-25 | 北京纵横机电技术开发公司 | Disc brake clamp device for rail car |
| CN105346555A (en) * | 2015-11-24 | 2016-02-24 | 唐山轨道客车有限责任公司 | Brake clamp device of magnetic levitation vehicle |
| CN205632516U (en) * | 2016-04-29 | 2016-10-12 | 同济大学 | Well low -speed maglev arresting gear for train |
| WO2018000895A1 (en) * | 2016-06-30 | 2018-01-04 | 北京北摩高科摩擦材料股份有限公司 | Elastic adjustable brake pad for use in train |
| CN108799364A (en) * | 2018-07-12 | 2018-11-13 | 中铁磁浮科技（成都）有限公司 | Magnetic-levitation train brake clamp |
| CN111075865A (en) * | 2019-12-27 | 2020-04-28 | 北京北摩高科摩擦材料股份有限公司 | Adjustable brake pad for train |
| CN111609061A (en) * | 2020-05-27 | 2020-09-01 | 中车青岛四方车辆研究所有限公司 | Lever hanging bracket of brake clamp unit |
| CN112208341A (en) * | 2020-11-13 | 2021-01-12 | 北京天佑新辔高新技术有限公司 | Electromechanical brake for superconducting magnetic levitation vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 韩宇: "磁浮车辆液压夹钳单元绝缘方案研究", 《现代城市轨道交通》 * |
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|---|---|
| WO2023060693A1 (en) | 2023-04-20 |
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Application publication date: 20211214 |