An electrically powered magnetic levitation tracked vehicle chassis

Abstract

The application discloses an electric magnetic suspension tracked vehicle chassis, which comprises a vehicle body, a track assembly, a load wheel, a linear induction motor, a roller and a magnet assembly. The track assembly comprises a track plate. The linear induction motor is used for driving the track assembly to rotate, and the linear induction motor comprises an induction primary and an induction secondary. The induction primary is installed on the vehicle body, and the induction secondary is installed on the track plate. The roller is rotatably installed on the vehicle body and used for rolling contact with the side of the track plate close to the induction primary, so that the induction primary is prevented from contacting the track plate or the induction secondary. The magnet assembly is used for supporting the vehicle body, and the magnet assembly comprises a first magnet installed on an axle of the load wheel and a second magnet installed on the track plate. The second magnet on the lower track plate repels the first magnet in a magnetic manner when the two magnets are close to each other. Compared with the prior art, the electric magnetic suspension tracked vehicle chassis can reduce friction loss and improve energy utilization efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tracked vehicles, in particular to an electric magnetic levitation tracked vehicle chassis. BACKGROUND

[0002] For traditional tracked vehicles such as tanks, there is a large friction loss between the transmission mechanism of the engine and the driving wheel, and there is also a large friction loss between the weight wheel and the lower track plate, which reduces the energy utilization efficiency. Therefore, how to reduce the friction loss during the operation of the tracked vehicle is a technical problem to be solved by those skilled in the art. SUMMARY

[0003] The purpose of the present application is to provide an electric magnetic levitation tracked vehicle chassis to reduce friction loss and improve energy utilization efficiency.

[0004] To achieve the above purpose, the present application provides the following scheme:

[0005] The present application discloses an electric magnetic levitation tracked vehicle chassis, comprising a vehicle body, a track assembly and a weight wheel assembly, the track assembly comprises a track plate, the weight wheel assembly comprises an axle and a weight wheel, the axle is installed on the vehicle body, the weight wheel is rotatably installed on the axle, and the electric magnetic levitation tracked vehicle chassis further comprises:

[0006] a linear induction motor for driving the track assembly to rotate, the linear induction motor comprising an induction primary and an induction secondary; the induction primary is installed on the vehicle body, and the induction secondary is installed on the track plate;

[0007] a roller rotatably installed on the vehicle body, used for rolling contact with one side of the track plate close to the induction primary, so as to avoid contact between the induction primary and the track plate or the induction secondary;

[0008] a magnet assembly for supporting the vehicle body, the magnet assembly comprising a first magnet installed on the axle and a second magnet installed on the track plate; the second magnet on the lower track plate repels the first magnet.

[0009] Preferably, the induction primary comprises an upper induction primary and a lower induction primary, the upper induction primary is located on the upper side of the upper track plate, and the lower induction primary is located on the lower side of the upper track plate; the roller comprises an upper roller and a lower roller; the upper roller is located on the upper side of the upper track plate and used for rolling contact with the upper surface of the upper track plate; the lower roller is located on the lower side of the upper track plate and used for rolling contact with the lower surface of the upper track plate.

[0010] Preferably, the magnet assembly comprises two groups, the first magnets of the two groups of magnet assemblies are respectively installed on two sides of the load wheel, and the second magnets of the two groups of magnet assemblies are respectively installed on the transverse two ends of the track plate.

[0011] Preferably, the track plate is made of stainless steel, and the induction secondary and the second magnets are located inside the track plate, and the induction secondary is located between the second magnets of the two groups of magnet assemblies.

[0012] Preferably, the track assembly comprises the track plate, a track pin, an end connector and a positioning block, the track pin passes through the track plate in the transverse direction, and the longitudinal two ends of the track plate are respectively provided with the track pin, the adjacent two track pins on the adjacent two track plates are connected through the end connector, the end connector is provided with a insertion hole for the track pin to insert, and the positioning block is installed on the end connector to limit the track pin in the axial direction of the track pin.

[0013] Preferably, the side surface of the track pin is provided with a notch, and the positioning block is clamped into the notch, and the track pin is fixed to the end connector through a screw, and the screw passes through the positioning block and is threadedly connected with the end connector.

[0014] Preferably, the two sides of the load wheel are respectively provided with a first vertical plate and a second vertical plate, and the first vertical plate and the second vertical plate are both provided with the first magnet, and the plurality of wheel shafts pass through the same first vertical plate and the second vertical plate.

[0015] Preferably, the first vertical plate and the second vertical plate are both provided with a plurality of first magnets.

[0016] Preferably, the plurality of first magnets on the same first vertical plate are distributed in the front-rear direction, and the plurality of first magnets on the same second vertical plate are distributed in the front-rear direction.

[0017] Preferably, the induction secondary is made of aluminum or a magnet.

[0018] The present application has the following technical effects compared with the prior art:

[0019] When the induction primary is connected to the alternating power supply, a traveling wave magnetic field is generated, which drags the track plate to translate, thereby driving the track assembly to rotate. The wheel shaft of the load wheel is installed on the vehicle body, and the lower track plate supports the wheel shaft of the load wheel through the magnet assembly, thereby supporting the vehicle body. If the magnetic force of the magnet assembly is insufficient to support the vehicle body, the load wheel is in contact with the lower track plate. Since the engine, transmission mechanism and driving wheel are omitted, the friction loss in the transmission process is reduced. Since the normal pressure of the load wheel on the lower track plate is reduced, the friction loss during the driving of the track vehicle is reduced. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the chassis of an electric magnetic levitation tracked vehicle according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A partial sectional view along the FF direction;

[0023] Figure 3 for Figure 2 Partial sectional view along direction D;

[0024] Figure 4 for Figure 3 Partial cross-sectional view along the GG direction (secondary induction stage omitted);

[0025] Figure 5 for Figure 1 A cross-sectional view along the AA direction;

[0026] Explanation of reference numerals in the attached diagram: 1-Induction primary; 2-Track assembly; 3-Roller assembly; 4-Idler wheel; 5-Road roller assembly;

[0027] 101-Iron core; 102-Winding; 201-Track plate assembly; 20101-Track plate; 20102-Induction secondary; 20103-Second magnet; 202-Track pin; 203-End connector; 204-Positioning block; 301-Bearing; 302-Shaft; 303-Clamping plate;

[0028] 501-First vertical plate assembly; 502-Road wheel; 503-Second vertical plate assembly; 50101-First vertical plate; 50102-First magnet I; 50301-Second vertical plate; 50302-First magnet II; 504-Wheel axle. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The electric magnetic suspension tracked vehicle chassis provided by the application reduces friction loss and improves energy utilization efficiency.

[0031] In order to make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the application will be further described in detail below in combination with the drawings and specific embodiments. The electric magnetic suspension tracked vehicle chassis in the embodiments includes but is not limited to a tank vehicle chassis. In the embodiments, the transverse direction refers to the left-right direction of the tracked vehicle when the tracked vehicle moves in the front-rear direction. In the electric magnetic suspension tracked vehicle chassis, the electric refers to that the rotation of the track assembly 2 is driven by electricity, and the magnetic suspension refers to that the magnetic suspension support force is provided to the wheel shaft 504 of the weight wheel 502 by the magnet assembly.

[0032] With reference to Figures 1-5 The electric magnetic suspension tracked vehicle chassis provided by the embodiments includes a vehicle body, a track assembly 2, a weight wheel assembly 5, a linear induction motor, a roller and a magnet assembly.

[0033] The track assembly 2 includes a track plate 20101. The weight wheel assembly 5 includes a wheel shaft 504 and a weight wheel 502, the wheel shaft 504 is installed on the vehicle body, and the weight wheel 502 is rotatably installed on the wheel shaft 504. The linear induction motor is used to drive the rotation of the track assembly 2, and the linear induction motor includes an induction primary 1 and an induction secondary 20102. The induction primary 1 is installed on the vehicle body, and the induction secondary 20102 is installed on the track plate 20101. The roller is rotatably installed on the vehicle body and used to roll in contact with the side of the track plate 20101 close to the induction primary 1. Specifically, in the embodiments, the roller is rotatably installed on the shell covering the outside of the induction primary 1, and the shell is fixed on the vehicle body, so that the roller is indirectly installed on the vehicle body. The magnet assembly is used to support the vehicle body, and the magnet assembly includes a first magnet installed on the wheel shaft 504 and a second magnet 20103 installed on the track plate 20101. The second magnet 20103 on the lower track plate 20101 repels each other magnetically with the part close to the first magnet. In the embodiments, the lower track plate 20101 refers to the track plate 20101 in contact with the ground, and the upper track plate 20101 refers to the track plate 20101 located directly above the lower track plate 20101.

[0034] The working principle of the electric magnetic suspension tracked vehicle chassis is as follows:

[0035] When the AC power is connected to the inductive primary 1, the traveling wave magnetic field is generated, which drags the track plate 20101 to translate, thereby driving the track assembly 2 to rotate. The axle 504 is installed on the vehicle body, and the lower track plate 20101 supports the axle 504 of the load wheel 502 through the magnet assembly, thereby supporting the vehicle body. If the magnetic force of the magnet assembly is insufficient to support the vehicle body, the load wheel 502 is in contact with the lower track plate 20101. Since the engine, transmission mechanism and driving wheel are omitted, the friction loss in the transmission process is reduced. Since the normal pressure of the load wheel 502 on the lower track plate 20101 is reduced, the friction loss during the driving of the track vehicle is reduced. It should be noted that, in order to avoid damage to the magnetic force assembly, when the load wheel 502 is in contact with the lower track plate 20101, a gap should be left between the first magnet and the second magnet 20103.

[0036] As a possible example, in the embodiment, the inductive primary 1 includes an upper inductive primary and a lower inductive primary. The upper inductive primary is located on the upper side (i.e. above) of the upper track plate 20101, and the lower inductive primary is located on the lower side (i.e. below) of the upper track plate 20101. The rollers include upper rollers and lower rollers. The upper rollers are located on the upper track plate 20101 and are used to roll in contact with the upper surface of the upper track plate 20101. The lower rollers are located below the upper track plate 20101 and are used to roll in contact with the lower surface of the upper track plate 20101. Specifically, in the embodiment, the upper rollers include two groups, and the two groups of upper rollers are respectively in rolling contact with the transverse ends of the upper surface of the upper track plate 20101. The lower rollers include two groups, and the two groups of lower rollers are respectively in rolling contact with the transverse ends of the lower surface of the upper track plate 20101. The inductive primary 1 includes a core 101 and a winding 102. It should be noted that when the upper track plate 20101 translates, it is subjected to an attractive force perpendicular to the translation direction towards the inductive primary 1. By simultaneously providing the upper inductive primary and the lower inductive primary, the embodiment counteracts the attractive force perpendicular to the translation direction received by the track plate 20101. The rollers are in rolling contact with the track plate 20101 to limit the position of the track plate 20101, so as to avoid the inductive primary 1 from contacting the track plate 20101 or the inductive secondary 20102 on the track plate 20101. Specifically, in the embodiment, the rollers are bearings 301, the bearings 301 are installed on shafts 302, the shafts 302 are fixed on clamping plates 303, and the clamping plates 303 are fixed on the vehicle body.

[0037] As a possible example, in the embodiment, the magnet assembly includes two groups, the first magnets (the first magnet I 50102 and the first magnet II 50302) of the two groups of magnet assemblies are respectively installed on the transverse sides of the load wheel 502, and the second magnets 20103 of the two groups of magnet assemblies are respectively installed on the transverse ends of the track shoe 20101. According to different actual needs, those skilled in the art can also select other numbers of magnet assemblies.

[0038] As a possible example, in the embodiment, the track shoe 20101 is made of stainless steel, and the inductive secondary 20102 is made of aluminum or a magnet. The inductive secondary 20102 and the second magnet 20103 are both located inside the track shoe 20101, and the inductive secondary 20102 is located between the second magnets 20103 of the two groups of magnet assemblies. Stainless steel is a commonly used material for the track shoe 20101, and it has higher hardness, which can protect the inductive secondary 20102, the first magnet and the second magnet 20103 inside.

[0039] As a possible example, in the embodiment, the track assembly 2 includes the track shoe 20101, the track pin 202, the end coupler 203 and the positioning block 204. The track pin 202 passes through the track shoe 20101 in the transverse direction, and the longitudinal ends of the track shoe 20101 are respectively provided with the track pin 202. The adjacent two track pins 202 on the adjacent two track shoes 20101 are connected through the end coupler 203, and the end coupler 203 is provided with a hole for inserting the track pin 202. The positioning block 204 is installed on the end coupler 203 and is used to limit the track pin 202 in the axial direction of the track pin 202. In use, first pass the track pin 202 through the track shoe 20101, then insert the track pin 202 into the hole on the end coupler 203, and then use the positioning block 204 to block the track pin 202 to prevent the track pin 202 from coming out. In the embodiment, the longitudinal direction of the track shoe 20101 refers to the direction of the track shoe 20101 which is perpendicular to the transverse direction and the thickness direction. According to different actual needs, those skilled in the art can also select other forms of track assemblies 2.

[0040] As a possible example, in the embodiment, the side surface of the track pin 202 is provided with a notch, and the positioning block 204 is clamped into the notch. The track pin 202 is fixed to the end coupler 203 by a screw, and the screw passes through the positioning block 204 and is threadedly connected with the end coupler 203.

[0041] As a possible example, in the embodiment, the two sides of the load wheel 502 are respectively provided with a first vertical plate 50101 and a second vertical plate 50301, and the first vertical plate 50101 and the second vertical plate 50301 are both provided with a first magnet. The plurality of wheel shafts 504 pass through the same first vertical plate 50101 and the second vertical plate 50301, and the first vertical plate 50101 and the second vertical plate 50301 are fixedly connected by bolts and nuts. The first vertical plate 50101 and the second vertical plate 50301 simultaneously support the wheel shafts 504, avoiding excessive local stress of the wheel shafts 504. By passing the plurality of wheel shafts 504 through the first vertical plate 50101 and the second vertical plate 50301 at the same time, the first vertical plate 50101 and the second vertical plate 50301 are prevented from rotating relative to the wheel shafts 504 under the action of magnetic force.

[0042] As a possible example, in the embodiment, the first vertical plate 50101 and the second vertical plate 50301 are both provided with a plurality of first magnets, so as to improve the support force of the magnet assembly on the vehicle body.

[0043] As a possible example, in the embodiment, the plurality of first magnets on the same first vertical plate 50101 are distributed in the front-rear direction, and the plurality of first magnets on the same second vertical plate 50301 are distributed in the front-rear direction. According to actual needs, other arrangement modes can also be selected by those skilled in the art.

[0044] Compared with the existing tank vehicle chassis, the electric magnetic levitation tracked vehicle chassis of the embodiment is also provided with an induction wheel 4. The induction wheel 4 is used to engage with the induction teeth on the track assembly 2, and correct the lateral position of the track assembly 2. In the embodiment, the induction teeth are arranged on the end coupling 203.

[0045] The principles and implementation modes of the present application are described in the specification by using specific examples, and the above description of the embodiments is only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed. In view of the above, the content of the specification should not be understood as a limitation of the present application.

Claims

1. An electrically powered magnetic levitation tracked vehicle chassis comprising a vehicle body, a track assembly and a road wheel assembly, the track assembly comprising a track shoe, the road wheel assembly comprising an axle and a road wheel, the axle being mounted to the vehicle body, the road wheel being rotatably mounted to the axle, characterised in that, The electric magnetic suspension tracked vehicle chassis further comprises: a linear induction motor for driving the rotation of the tracked assembly, the linear induction motor comprising an induction primary and an induction secondary; the induction primary is installed on the vehicle body, and the induction secondary is installed on the track plate; rollers rotatably installed on the vehicle body for rolling contact with the side of the track plate close to the induction primary to avoid contact between the induction primary and the track plate or the induction secondary; a magnet assembly for supporting the vehicle body, the magnet assembly comprising first magnets installed on the wheel shafts and second magnets installed on the track plates; the second magnets on the lower track plates repel each other magnetically from the first magnets; the induction primary comprises upper induction primaries and lower induction primaries, the upper induction primaries are located on the upper side of the upper track plates, and the lower induction primaries are located on the lower side of the upper track plates; the rollers comprise upper rollers and lower rollers; the upper rollers are located on the upper side of the upper track plates, and multiple groups of the upper rollers are respectively used for rolling contact with the lateral ends of the upper surfaces of the upper track plates; the lower rollers are located on the lower side of the upper track plates, and multiple groups of the lower rollers are respectively used for rolling contact with the lateral ends of the lower surfaces of the upper track plates; the magnet assembly comprises two groups, and the first magnets of the two groups of magnet assemblies are respectively installed on the lateral sides of the load wheels, and the second magnets of the two groups of magnet assemblies are respectively installed on the lateral ends of the track plates; the induction secondary is made of aluminum or a magnet.

2. An electrically powered magnetic levitation tracked vehicle chassis according to claim 1, characterised in that, the track plate is made of stainless steel, the induction secondary and the second magnets are located inside the track plate, and the induction secondary is located between the second magnets of the two groups of magnet assemblies.

3. An electrically powered magnetic levitation tracked vehicle chassis according to claim 2, characterised in that, The tracked assembly comprises the track plates, track pins, end couplings, and positioning blocks; the track pins pass through the track plates in the lateral direction, and the longitudinal ends of the track plates are respectively provided with the track pins; adjacent two track pins on adjacent two track plates are connected through the end couplings, the end couplings are provided with insertion holes for the insertion of the track pins; the positioning blocks are installed on the end couplings to limit the track pins in the axial direction of the track pins.

4. An electrically powered magnetic levitation tracked vehicle chassis according to claim 3, characterised in that, The side surface of the track pin is provided with a notch, and the positioning block is clamped into the notch; the track pin is fixed to the end coupling through a screw, and the screw passes through the positioning block and is threadedly connected with the end coupling.

5. The electrically powered magnetic levitation tracked vehicle chassis of claim 1, wherein, The two sides of the load wheel are respectively provided with a first vertical plate and a second vertical plate, and the first vertical plate and the second vertical plate are both installed with the first magnets; multiple wheel shafts pass through the same first vertical plate and second vertical plate.

6. An electrically powered magnetic levitation tracked vehicle chassis according to claim 5, characterised in that, The first vertical plate and the second vertical plate are both installed with multiple first magnets.

7. An electrically powered magnetic levitation tracked vehicle chassis according to claim 6, characterised in that, Multiple first magnets on the same first vertical plate are distributed in the front-rear direction, and multiple first magnets on the same second vertical plate are distributed in the front-rear direction.

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