CN213477017U

CN213477017U - Wiring structure of electric excavator

Info

Publication number: CN213477017U
Application number: CN202021969689.6U
Authority: CN
Inventors: 汤中连; 耿家文; 董步军; 孙忠永; 张卫; 徐改姣; 吴金锋; 黄金辉; 杜冬洋; 尹超; 张马永; 姜毅
Original assignee: Xuzhou XCMG Excavator Machinery Co Ltd
Current assignee: Xuzhou XCMG Excavator Machinery Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-06-18
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses an electric excavator's wiring structure, including protection casing, protective tube, transfer terminal box and collecting ring, the protection casing install under the excavator on the longeron of frame, the transfer terminal box install under the excavator on the X frame of frame, the collecting ring install on excavator center solid of revolution, protection casing and transfer terminal box between set up the protective tube, the cable passes protection casing, protective tube, transfer terminal box in proper order, connects to the position equipment of getting on the bus of excavator through the collecting ring commentaries on classics at last. The utility model discloses simple structure makes things convenient for excavator transformation, assembly and maintenance, has improved cable layout's fail safe nature.

Description

Wiring structure of electric excavator

Technical Field

The utility model discloses an electric excavator's wiring structure relates to electric excavator equipment technical field.

Background

Along with the upgrading of national environmental protection policies, the emission regulations of engineering machinery are increasingly strict, the emission of a plurality of excavators does not reach the standard, the excavators cannot enter a construction site for construction, and the electric excavator has zero emission, no pollution, energy conservation and environmental protection, and the use and maintenance cost is saved by more than 40% compared with an engine. The oil price is still high in China, the electric excavator and the excavator with a hydraulic system driven by a transmission engine are improved to be more and more favored by users, and the electric hydraulic excavator with the hydraulic system driven by a motor gradually becomes a new research direction and a hot spot in the field of excavators.

In the prior art, one end of an upper electric conduit of an excavator is welded on a junction box, the other end of the upper electric conduit of the excavator is a horn-shaped opening, a cable penetrates through the horn-shaped opening, the junction box is welded on the side edge of a frame of the alternating current electric excavator, the upper electric conduit is welded at one end of the junction box, the other end of the junction box is provided with the upper electric conduit, a binding post is arranged in the upper electric conduit, the outer surface of the upper electric conduit is tightly sealed by a sealing ring and a pressing cover, one end of the upper; last electric tube, terminal box and protective tube among the above-mentioned technique are damaged by striking deformation easily, leak electricity when serious and lead to the accident, and then the frame side is welded to the terminal box, and the protective tube both ends are the welding formula, damage inconvenient maintenance and change, and it is also inconvenient to wear the cable, and the protective tube goes into from the perforation of frame middle ring moreover, and is narrow and small because of the frame intermediate space, and it is very difficult at ordinary hydraulic excavator frame reform transform trompil. Therefore, how to design a cable wiring mode and an accessory device of the electric excavator, which are safe, convenient, reliable and convenient for the transformation of the traditional excavator, becomes a technical subject to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the defect among the above-mentioned background art, provide an electric excavator's wiring structure, the security is high, the reliability is high.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an electric excavator's wiring structure, includes protection casing, protective tube, transfer terminal box and collecting ring, the protection casing install under the excavator on the longeron of frame, the transfer terminal box install under the excavator on the X frame of frame, the collecting ring install on excavator center solid of revolution, protection casing and transfer terminal box between set up the protective tube, the cable outside is located for the protection cable to the protective tube, the cable passes protective tube, transfer terminal box in proper order, connects to the upper part of a vehicle equipment of excavator through collecting ring commentaries on classics at last.

Furthermore, the protective pipe is arranged between the supporting wheels of the lower frame, the distance between the protective pipe and the crawler belt is the largest at the position, and the crawler belt is effectively prevented from sagging and the protective pipe is prevented from interfering and wearing.

Further, the protective tube both ends all fixed through L board and U-shaped support, both ends the L board fix respectively on longeron and X frame, two L board positions become 90 degrees contained angles, the open end of U-shaped support is fixed in the L board to reserve the clearance and supply the protective tube to pass, effectively retrain the protective tube and move.

Furthermore, the protective cover is of a uncovered frame-shaped structure and comprises a top plate, a vertical plate, a bottom plate, a right bent plate and a left bent plate, the top plate and the bottom plate are in a splayed design, a hanging plate is welded on the top plate close to the outer end in the protective cover, the upper side of the top plate is fixedly connected with an ear plate, and the protective cover is connected to the longitudinal beam through the ear plate; two threaded holes or through holes are formed in the outer side face of the bent plate of the longitudinal beam, back face welding nuts are added to the through holes, two upright columns with threaded holes are welded to the upper side face of the bent plate of the longitudinal beam, and therefore the protective cover can be assembled on the longitudinal beam through bolts, washers and bolts.

Furthermore, the transfer junction box is formed by bending a sheet metal part into a box body and a cover body, and a sealing rubber strip is arranged between the box body and the cover body; the inside current binding post that sets up of box, the outside of box set up straight tube and pipe chute, the medial extremity of straight tube and pipe chute all is provided with foraminiferous rubber piece and clamp plate with one heart, the pipe chute correspond with the protective tube and be connected, the straight tube inserts in the hole of the left back riser of X frame, the position of left back riser is higher and be located the excavator 360 degrees protective scope of getting on the bus all the time, effectively avoids well patch cord box integument striking deformation to be decreased.

Furthermore, a first threaded seat is welded on the top surface of the X frame, a second threaded seat is welded on the left rear vertical plate of the X frame, and the transfer junction box body is fixedly connected to the first threaded seat and the second threaded seat.

Furthermore, a connecting hole is formed in the side of the vertical plate of the protective cover, and a rubber sheath is arranged between the connecting hole and the protective pipe.

Furthermore, the cover body is provided with a U-shaped handle, so that the cover body is convenient to be installed by hands, and the cover body is fastened on the box body of the transfer junction box through a gasket and a bolt.

Furthermore, the hole on the rubber block is in consistent tight fit with the diameter of the cable, so that the cable is prevented from being abraded and dust is prevented from entering the hole, and the hole on the pressing plate is larger than the diameter of the cable.

The cable at the get-off part is divided into two sections, the first section is that the cable penetrates through a protective cover and a protective pipe at the get-off part and is connected to a current wiring terminal of a transfer junction box, and the second section is connected with the current wiring terminal of the transfer junction box and is connected with a collecting ring; the cable is connected with equipment such as a control cabinet, an alternating current motor and the like integrated to the upper vehicle part through the adapter of the collecting ring.

One end of the fixed protective pipe of the utility model is contacted and aligned with the connecting hole with the rubber sheath of the protective cover, and the other end is flexibly connected with the inclined pipe of the transfer junction box through the rubber pipe and the hoop so as to compensate the alignment deviation of the assembly of the two pipes; a hole is formed in the left rear vertical plate of the X frame, and a straight pipe of the box body of the transfer junction box is inserted into the hole of the left rear vertical plate of the X frame; one end of the cable is connected with the collecting ring through a pipe hole of a hydraulic pipe of the X-frame circular motor, and the cable from the transfer junction box to the collecting ring is positioned in the X frame; the other end of the connecting wire enters an internal connecting current wiring terminal through a straight pipe of the transfer junction box body.

Has the advantages that: the utility model has simple structure, is convenient for the reconstruction, assembly and maintenance of the excavator, and improves the safety and reliability of the cable layout; this application is direct trompil on solebar down, weld the screw thread seat on X frame, and partial cable layout additional structure transformation of can accomplishing down can be gone up to left back riser trompil on X frame.

Drawings

FIG. 1 is a diagram of an equipment frame of the present invention;

FIG. 2 is a schematic view of the arrangement of the lower vehicle cable of the present invention;

FIG. 3 is a schematic view showing a partial enlargement of the arrangement of the lower cable of the apparatus of the present invention;

FIG. 4 is a rear view of the protective cover of the apparatus of the present invention;

FIG. 5 is a front view of the protective cover of the present invention;

FIG. 6 is a front view of the transfer junction box of the present invention;

FIG. 7 is a rear view of the transfer junction box of the present invention;

fig. 8 is a sectional view of the cable at the lower part of the utility model.

Detailed Description

The following describes the embodiments in further detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1-3, a wiring structure of electric excavator, includes protection casing 2, protective tube 3, transfer terminal box 4 and collecting ring 5, protection casing 2 install under the excavator on longeron 6 of frame, transfer terminal box 4 install under the excavator on the X frame 7 of frame, collecting ring 5 install on excavator center solid of revolution, protection casing 2 and middle patch cord box 4 between set up protective tube 3, protective tube 3 is used for protecting cable 1, and the cover is located the cable 1 outside, and cable 1 passes protective casing 2, protective tube 3, transfer terminal box 4 in proper order, at last through collecting ring 5 switching to the upper part of a vehicle equipment of excavator.

The protective pipe 3 sets up under between

frame riding wheel

8, 3 both ends of protective pipe all fixed through L board 9 and U-shaped support 10, both ends L board 9 fix respectively on longeron 6 and X frame 7, two L board 9 positions become 90 degrees contained angles, the open end of U-shaped support 10 is fixed in L board 9 to reserve the clearance and supply protective pipe 3 to pass, protective pipe 3 passes through rubber tube 13 and connects on transfer terminal box 4.

The top surface of the X frame 7 is welded with a first threaded seat 11, the left rear vertical plate of the X frame 7 is welded with a second threaded seat 12, and the transfer junction box 4 is fixedly connected to the first threaded seat 11 and the second threaded seat 12.

A connecting hole is formed in the side of the vertical plate 15 of the protective cover 2, and a rubber sheath is arranged between the connecting hole and the protective pipe 3.

The inner diameter of the protective steel pipe 8 is larger than the diameter of the cable 1, the shape is preferably a straight pipe, the protective steel pipe can be a large-bending pipe due to the limitation of spatial layout, and the protective steel pipe can be divided into two sections of steel pipes connected by flanges to conveniently penetrate through the cable 1 when necessary.

As shown in fig. 4 to 5, the shield 2 is of a frame structure without a cover, and includes a top plate 14, a vertical plate 15, a bottom plate 16, a right bent plate 18 and a left bent plate 17, the top plate 14 and the bottom plate 16 are designed in a shape of "eight", the parts of the top plate 14 and the bottom plate 16 in the shape of "eight" are bent downward and correspond to the shapes of the right bent plate 18 and the left bent plate 17, the edges of the inner sides of the ends of the bent edges of the right bent plate 18, the left bent plate 17 and the bottom plate 16 are ground into round corners, and the whole shield 2 is in a shape of a horn; a hanging plate 19 is welded on the top plate 14 close to the outer end inside the protective cover 2, a hoop with a chain lock catch is arranged on the cable 1, the cable 1 is hung on the protective cover 2 through a lock catch hung in a hole of the hanging plate 19, the cable 1 is prevented from swinging greatly, an ear plate 20 is fixedly connected to the upper side of the top plate 14, and the protective cover 2 is connected to the longitudinal beam 6 through the ear plate 20; two threaded holes or through holes are formed in the outer side face of the bent plate of the longitudinal beam 6, back face welding nuts are added to the through holes, two upright columns with threaded holes are welded to the upper side face of the bent plate of the longitudinal beam 6, and therefore the protective cover 2 can be assembled on the longitudinal beam 6 through bolts, washers and bolts.

As shown in fig. 6 to 7, the transfer junction box 4 is a box body 21 and a cover body 28 formed by bending sheet metal parts, and a sealing rubber strip 22 is arranged between the box body 21 and the cover body; the cover body is provided with a U-shaped handle which is convenient for hand-held installation, and is fastened on the box body 21 of the transfer junction box 4 through a gasket and a bolt; a current wiring terminal 23 is arranged in the box body 21, a straight pipe 24 and an inclined pipe 25 are arranged on the outer side of the box body 21, the inner side ends of the straight pipe 24 and the inclined pipe 25 are concentrically provided with a rubber block 26 with a hole and a pressing plate 27, the hole of the rubber block 26 is in consistent tight fit with the diameter of the cable 1, the cable 1 is prevented from being abraded and dust enters, and the hole of the pressing plate 27 is larger than the diameter of the cable 1; the inclined tube 25 is correspondingly connected with the protection tube 3, the straight tube 24 is inserted into a hole of a left rear vertical plate of the X frame 7, the left rear vertical plate is higher in position and is always located in the upper-vehicle 360-degree protection range of the excavator, and the box body 21 of the transfer junction box 4 is effectively prevented from being damaged by impact deformation.

As shown in fig. 8, the cable at the get-off part of the present application is divided into two sections, the first section is that the cable passes through the protective cover and the protective tube at the get-off part and is connected to the current terminal of the transfer junction box, and the second section is connected to the current terminal of the transfer junction box and is connected to the collecting ring; the cable is connected with equipment such as a control cabinet, an alternating current motor and the like integrated to the upper vehicle part through the adapter of the collecting ring.

One end of the fixed protective pipe of the utility model is contacted and aligned with the connecting hole with the rubber sheath of the protective cover, and the other end is flexibly connected with the inclined pipe of the transfer junction box through the rubber pipe and the hoop so as to compensate the alignment deviation of the assembly of the two pipes; a hole is formed in the left rear vertical plate 29 of the X frame, and a straight pipe of the box body of the transfer junction box is inserted into the hole of the left rear vertical plate 29 of the X frame; one end of the cable 1 is connected with the collecting ring through a pipe hole of a motor hydraulic pipe of an X-frame ring 31, the cable from the transit junction box to the collecting ring is positioned in the X-frame, and a rubber sheath 30 is arranged on the motor hydraulic pipe through the pipe hole; the other end of the connecting wire enters an internal connecting current wiring terminal through a straight pipe of the transfer junction box body.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a wiring structure of electric excavator, its characterized in that includes protection casing, protective tube, transfer terminal box and collecting ring, the protection casing install under the excavator on the longeron of frame, the transfer terminal box install under the excavator on the X frame of frame, the collecting ring install on excavator center solid of revolution, protection casing and transfer terminal box between set up the protective tube, the cable passes protective casing, protective tube, transfer terminal box in proper order, changes the position equipment of getting on the bus that connects to the excavator through the collecting ring at last.

2. The wiring structure of an electric excavator according to claim 1, wherein the protection pipe is disposed between the idlers of the lower frame.

3. The wiring structure of the electric excavator as claimed in claim 1, wherein both ends of the protection pipe are fixed by an L-shaped plate and a U-shaped bracket, the L-shaped plates at both ends are respectively fixed on the longitudinal beam and the X-shaped frame, the two L-shaped plates form a 90-degree included angle, the open end of the U-shaped bracket is fixed on the L-shaped plate, and a gap is reserved for the protection pipe to pass through.

4. The wiring structure of an electric excavator according to claim 1, wherein the protective cover is of a frame-shaped structure without a cover, and comprises a top plate, a vertical plate, a bottom plate, a right bent plate and a left bent plate, the top plate and the bottom plate are in a splayed design, a hanging plate is welded on the top plate near the outer end inside the protective cover, an ear plate is fixedly connected to the upper side of the top plate, and the protective cover is connected to the longitudinal beam through the ear plate.

5. The wiring structure of the electric excavator according to claim 1, wherein the transfer junction box is a box body and a cover body which are formed by bending sheet metal parts, and a sealing rubber strip is arranged between the box body and the cover body; the box body is internally provided with a current wiring terminal, the outer side of the box body is provided with a straight pipe and an inclined pipe, the inner side ends of the straight pipe and the inclined pipe are concentrically provided with a rubber block with a hole and a pressing plate, the inclined pipe is correspondingly connected with the protection pipe, and the straight pipe is inserted into the hole of the left rear vertical plate of the X frame.

6. The wiring structure of the electric excavator as claimed in claim 1, wherein a first threaded seat is welded to the top surface of the X frame, a second threaded seat is welded to the left rear vertical plate of the X frame, and the junction box body is fixedly connected to the first threaded seat and the second threaded seat.

7. The wiring structure of the electric excavator according to claim 4, wherein a connecting hole is formed in a side of a vertical plate of the protective cover, and a rubber sheath is arranged between the connecting hole and the protective pipe.

8. The wiring structure of an electric excavator according to claim 5 wherein the cover has a U-shaped handle.

9. The wiring structure of an electric excavator according to claim 5, wherein the hole of the rubber block is in conformity with a diameter of the cable to prevent abrasion of the cable and entry of dust, and the hole of the pressure plate is larger than the diameter of the cable.