Electric double-primary direct-drive tracked chassis

Abstract

The application discloses an electric double-primary direct-drive caterpillar chassis, and relates to the technical field of caterpillar vehicles, comprising a double-side linear induction motor primary and a composite caterpillar, wherein the double-side linear induction motor primary and the composite caterpillar are arranged on a chassis body, the double-side linear induction motor primary comprises a winding, the winding is used for connecting an alternating-current power supply, the composite caterpillar passes through the winding, and the double-side linear induction motor primary drives the composite caterpillar to move. After alternating current is input into the double-side linear induction motor primary, a traveling wave magnetic field is generated, the composite caterpillar induces current in the traveling wave magnetic field, and the current is forced in the magnetic field, so that the composite caterpillar obtains traction. The application directly adopts the linear induction motor to drive the composite caterpillar, omits a mechanical transmission link and a driving wheel, obtains a larger carrying space and a more flexible power cabin arrangement, and reduces transmission wear and tear, faults and mechanical noise.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tracked vehicles, and relates to an electric double-primary direct-drive tracked chassis, in particular to a high-speed tracked chassis adopting linear motor technology and double-primary double-pin single-inducing-tooth. BACKGROUND

[0002] Whether it is a traditional tracked vehicle or a hybrid tracked vehicle, the power output needs to be transmitted to the driving wheel through a transmission mechanism to drive the track, and in the transmission link, there is a large mechanical power loss, and the mechanical structure occupies a large power cabin space. SUMMARY

[0003] The present application aims to provide an electric double-primary direct-drive tracked chassis to solve the problems existing in the prior art, adopt a linear induction motor to drive a composite track, directly drive the composite track through electric power, omit the mechanical transmission link and the driving wheel, and can make the vehicle obtain higher efficiency, larger carrying space and carrying quality, more flexible power cabin layout, reduce transmission wear and tear and mechanical noise.

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

[0005] The present application provides an electric double-primary direct-drive tracked chassis, which comprises double-side linear induction motor primaries and a composite track, the double-side linear induction motor primaries and the composite track are arranged on a chassis body, the double-side linear induction motor primaries comprise windings, the windings are used to connect an alternating current power supply, the composite track passes through the windings, and the double-side linear induction motor primaries drive the composite track to move.

[0006] Preferably, the composite track comprises a plurality of track plates, a plurality of track pins, a plurality of end couplings and a plurality of middle couplings, both ends of each track plate are provided with a track pin, both ends of adjacent track pins are connected through an end coupling, and the middle part of adjacent track pins is connected through a middle coupling.

[0007] Preferably, the composite track further comprises a positioning block, the positioning block is located in the middle part of the end coupling, and the end face of the positioning block is in abutment with the step of the side face of the track pin.

[0008] Preferably, the track plate comprises a steel back plate and an aluminum plate, the steel back plate is sleeved outside the aluminum plate, and both ends of the steel back plate are respectively provided with the track pin.

[0009] Preferably, the steel back plate is made of a non-magnetic material.

[0010] Preferably, the primary winding of the dual-sided linear induction motor includes a plurality of silicon steel sheets and the winding, the plurality of silicon steel sheets are stacked together, the winding is wound on the teeth of the plurality of silicon steel sheets, and the silicon steel sheets are connected to the chassis body through the outer shell and the end cover.

[0011] Preferably, the system further includes several track roller sets symmetrically arranged on the upper and lower sides of the composite track. Each track roller set includes a clamping plate, a shaft, and a bearing. The clamping plate is disposed on the end cover of the primary of the double-sided linear induction motor. The shaft is connected to the clamping plate. The bearing is sleeved on the outside of the shaft. There is a gap between the outer ring of the bearing and the raceway of the composite track.

[0012] Preferably, the system further includes two track adjusters and two idler wheels. Each track adjuster is mounted on the chassis body. One track adjuster supports one idler wheel, and each idler wheel is in contact with the composite track.

[0013] Preferably, it also includes a plurality of road wheels and a suspension device, wherein the road wheels are connected to the chassis body through the suspension device, and each of the road wheels is in contact with the composite track.

[0014] Preferably, the composite track is provided with guide teeth, which mesh with the guide wheel and the road wheel.

[0015] The present invention achieves the following technical effects compared to the prior art:

[0016] The double-sided linear induction motor of this invention generates a traveling wave magnetic field when AC current is applied to its primary winding. The composite track induces a current in this magnetic field, and the force exerted by the current on the magnetic field gives the composite track traction. This invention directly drives the composite track using a linear induction motor, eliminating the need for mechanical transmission components and drive wheels. This allows for higher vehicle efficiency, greater carrying capacity and load capacity, more flexible power compartment layout, and reduced transmission wear and mechanical noise. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a side view of the electric dual-primary direct-drive tracked chassis of the present invention;

[0019] Figure 2 for Figure 1 FF sectional view;

[0020] Figure 3 Figure 1 is a schematic diagram of the D direction of the present application; Figure 2

[0021] Figure 4 Figure 2 is a G-G cross-sectional view (removing the double-sided linear induction motor primary) of the present application; Figure 3

[0022] Figure 5 Figure 3 is a side view of the present application; Figure 4

[0023] Wherein: 1, double-sided linear induction motor primary; 2, composite track; 3, track roller set; 4, track adjuster; 5, idler wheel; 6, load wheel; 101, silicon steel sheet; 102, winding; 103, shell; 104, end cover; 201, track plate; 20101, aluminum plate; 20102, steel back plate; 202, track pin; 203, positioning block; 204, end connector; 205, middle connector; 301, clamping plate; 302, bearing; 303, shaft. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] The purpose of the present application is to provide an electric double-primary direct-drive track chassis to solve the problems existing in the prior art. The composite track is driven by a linear induction motor, and the composite track is directly driven by electric power, thereby omitting the mechanical transmission link and the driving wheel, so that the vehicle can obtain higher efficiency, larger carrying space and carrying quality, more flexible power cabin arrangement, and reduced transmission wear and mechanical noise.

[0026] In order to make the above-mentioned purposes, characteristics and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0027] As Figures 1 to 5 ​​​The embodiment provides an electric double-primary direct-drive crawler chassis, which is applied to mechanical dragging, vehicle power, tanks and armored vehicles, and comprises two groups of double-side linear induction motor primaries 1 and two composite crawlers 2, one group of double-side linear induction motor primary 1 corresponds to one composite crawler 2, the double-side linear induction motor primary 1 and the composite crawler 2 are arranged on a chassis body, the double-side linear induction motor primary 1 comprises a winding 102, the winding 102 is used for connecting an alternating-current power supply, each composite crawler 2 passes through the winding 102 of one double-side linear induction motor primary 1, and the double-side linear induction motor primary 1 drives the composite crawler 2 to move. After the double-side linear induction motor primary 1 is connected with alternating current, a traveling wave magnetic field is generated, the composite crawler 2 induces current in the traveling wave magnetic field, and the composite crawler 2 obtains traction force under the action of the current in the magnetic field. In the embodiment, the linear induction motor is directly used to drive the composite crawler 2, mechanical transmission links and driving wheels are omitted, greater carrying space is obtained, power cabin arrangement is more flexible, and transmission wear and tear, faults and mechanical noise are reduced.

[0028] Specifically, in the embodiment, the composite crawler 2 is a double crawler, each crawler comprises a plurality of crawler plates 201, a plurality of crawler pins 202, a plurality of end couplings 204, a plurality of middle couplings 205 and a plurality of positioning blocks 203, both ends of each crawler plate 201 of the two crawlers are provided with a pin hole in correspondence, the crawler pin 202 is arranged in the pin hole, that is, the same crawler pin 202 is arranged in the crawler plate 201 of the two crawlers respectively, both ends of the adjacent crawler pin 202 are connected through the end coupling 204, the middle part of the adjacent crawler pin 202 is connected through the middle coupling 205, the middle coupling 205 is located between the two crawlers, the positioning block 203 is located in the middle part of the end coupling 204, and the end surface of the positioning block 203 abuts against the step of the side surface of the crawler pin 202, so that the rotation of the crawler pin 202 is prevented and the axial movement of the crawler pin 202 is limited.

[0029] In the embodiment, the crawler plate 201 comprises a steel back plate 20102 and an aluminum plate 20101, the middle part of the steel back plate 20102 has a flat hole, both ends of the steel back plate 20102 are provided with the crawler pin 202, the aluminum plate 20101 is arranged in the hole, the aluminum plate 20101 generates induced current, under the action of the traveling wave magnetic field generated by the primary, thrust is formed, the steel back plate 20102 is made of a non-magnetic material, and the coupling strength of the crawler is improved.

[0030] In this embodiment, the primary of the dual-sided linear induction motor 1 includes several silicon steel sheets 101 and windings 102. The silicon steel sheets 101 are stacked together and connected to the chassis body by bolts through a housing 103 and an end cap 104. The silicon steel sheets 101 are stacked together, and the windings 102 are wound around the teeth of the silicon steel sheets 101. The silicon steel sheets 101 are located on the upper and lower sides of the composite track 2, respectively. This embodiment uses a dual-sided induction primary, that is, it includes a first induction primary and a second induction primary. The first induction primary is located above the composite track 2, and the second induction primary is located below the composite track 2. The first induction primary and the second induction primary generate mutually attractive vertical forces with the composite track 2, and the two vertical forces can balance each other.

[0031] In this embodiment, several track roller sets 3 are also included. The track roller sets 3 are symmetrically arranged on the upper and lower sides of the composite track 2. Each track roller set 3 includes a clamping plate 301, a shaft 303, and a bearing 302. The clamping plate 301 is fixed to the end cover 104 of the primary of the double-sided linear induction motor 1 by bolts. One end of the shaft 303 is interference-fitted with the clamping plate 301, and the other end of the shaft 303 is inserted into the hole of the end cover 104. The bearing 302 is sleeved on the outside of the shaft 303. In the static state, there is a small gap between the outer ring of the bearing 302 and the raceway of the composite track 2, so they do not contact each other and do not generate friction. When the vehicle is running bumpy, the composite track 2 will bounce up and down. The track roller sets 3 limit the size of the bounce of the composite track 2, ensuring that the magnetic gap is within a reasonable range.

[0032] This embodiment also includes several road wheels 6 and a suspension device. The road wheels 6 are connected to the chassis body through the suspension device, and each road wheel 6 is in contact with the composite track 2.

[0033] This embodiment also includes two track adjusters 4 and two idler wheels 5. Each track adjuster 4 is mounted on the chassis body, and the two track adjusters 4 are located at the front end and rear end of the chassis body, respectively. One track adjuster 4 is used to support one idler wheel 5. Each idler wheel 5 is in contact with the composite track 2 and is used to tension the composite track 2.

[0034] In this embodiment, the connecting device 205 is provided with an induction tooth, which meshes with the induction wheel 5 and the road wheel 6 to correct the travel direction of the composite track 2.

[0035] When the vehicle encounters bumps during its movement, the road wheel 6 moves upward, the upper part of the composite track 2 becomes loose, the force exerted by the composite track 2 on the idler wheel 5 decreases, and the cylinder of the track adjuster 4 extends outward under the action of spring tension, causing the idler wheel 5 to tension the track; conversely, when the road wheel 6 moves downward, the composite track is tensioned, putting pressure on the idler wheel 5, causing the idler wheel 5 to drive the cylinder to retract, compressing the spring and storing energy.

[0036] The principles and implementation manners of the present application are described in the specification by using specific examples, and the above examples are only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed. In conclusion, the content of the specification should not be understood as a limitation of the present application.

Claims

1. An electric dual-primary direct-drive tracked chassis, characterized in that: The device includes a primary of a double-sided linear induction motor and a composite track. Both the primary of the double-sided linear induction motor and the composite track are mounted on the chassis body. The primary of the double-sided linear induction motor includes a winding for connecting to an AC power source. The composite track passes through the winding and drives the composite track to move. The composite track includes several track plates, several track pins, several end connectors and several middle connectors. Each track plate has a track pin at both ends. The ends of adjacent track pins are connected by end connectors, and the middle parts of adjacent track pins are connected by middle connectors. The primary winding of the bilateral linear induction motor includes several silicon steel sheets and the winding. The silicon steel sheets are stacked together, and the winding is wound around the teeth of the silicon steel sheets. The silicon steel sheets are connected to the chassis body through the outer shell and the end cover. It also includes several track roller sets, which are symmetrically arranged on the upper and lower sides of the composite track. Each track roller set includes a clamping plate, a shaft, and a bearing. The clamping plate is set on the end cover of the primary of the double-sided linear induction motor. The shaft is connected to the clamping plate. The bearing is sleeved on the outside of the shaft. There is a gap between the outer ring of the bearing and the raceway of the composite track.

2. The electric dual-primary direct-drive tracked chassis according to claim 1, characterized in that: It also includes a positioning block, which is located in the middle of the end connector, and the end face of the positioning block abuts against the step on the side of the track pin.

3. The electric dual-primary direct-drive tracked chassis according to claim 1, characterized in that: The track plate includes a steel back plate and an aluminum plate. The steel back plate is sleeved on the outside of the aluminum plate, and the track pins are respectively provided at both ends of the steel back plate.

4. The electric dual-primary direct-drive tracked chassis according to claim 3, characterized in that: The steel back plate is made of a non-magnetic material.

5. The electric dual-primary direct-drive tracked chassis according to claim 1, characterized in that: It also includes two track adjusters and two idler wheels. Each track adjuster is mounted on the chassis body. One track adjuster supports one of the idler wheels. Each idler wheel is in contact with the composite track.

6. The electric dual-primary direct-drive tracked chassis according to claim 5, characterized in that: It also includes several road wheels and a suspension device, wherein the road wheels are connected to the chassis body through the suspension device, and each road wheel is in contact with the composite track.

7. The electric dual-primary direct-drive tracked chassis according to claim 6, characterized in that: The composite track is provided with guide teeth, which mesh with the guide wheel and the road wheel.

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