CN110667386A

CN110667386A - Trolley bus

Info

Publication number: CN110667386A
Application number: CN201810720213.XA
Authority: CN
Inventors: 张文辉
Original assignee: Beiqi Foton Motor Co Ltd
Current assignee: Beiqi Foton Motor Co Ltd
Priority date: 2018-07-03
Filing date: 2018-07-03
Publication date: 2020-01-10
Anticipated expiration: 2038-07-03
Also published as: CN110667386B

Abstract

The invention relates to a trolley bus, which comprises a trolley body and a collecting frame, wherein the collecting frame comprises a collecting frame base and a collecting pole, the collecting frame base is fixed at the top of the trolley body, one end of the collecting pole is installed on the collecting frame base, the other end of the collecting pole is provided with a collecting head, the trolley bus also comprises a roof baffle and an electromagnetic limiting device, a drop pole opening is formed on the roof baffle, the electromagnetic limiting device is arranged at the top of the trolley body, the electromagnetic limiting device has a first state and a second state, and in the first state, the electromagnetic limiting device can prevent the collecting pole from falling through the drop pole opening; in the second state, the electromagnetic limiting device allows the trolley pole to fall through the falling pole notch. Through the scheme, the trolley pole can not pound pedestrians or other objects when the current collection system fails, and can be lowered to the height which can be touched by a hand, so that the maintenance operation is convenient.

Description

Trolley bus

Technical Field

The present disclosure relates to the field of trolleybuses, and particularly to a trolley bus.

Background

In the daily operation of the trolley bus, the carbon brush on the collector head needs to be replaced regularly. On one hand, the collector head is positioned at the tail end of the collector bar, so that the convenience of carbon brush replacement operation is ensured, and the height of the collector head, which is about 1.6 meters away from the ground, can be ensured during operation. On the other hand, in the running process of the electric car, if the current collecting system breaks down suddenly, the trolley pole is not controlled, and if the trolley pole can freely fall to the height of 1.6 meters away from the ground, pedestrians or other objects are easily damaged, and unnecessary loss is caused.

Disclosure of Invention

The utility model aims at providing a trolley bus, this trolley bus can guarantee that the trolley pole can not pound pedestrian or other objects when collecting system trouble, can guarantee again that the trolley pole can drop to the height that the staff can touch with convenient maintenance operation.

In order to achieve the purpose, the present disclosure provides a trolley bus, which includes a vehicle body and a collector frame, wherein the collector frame includes a collector frame base and a collector bar, the collector frame base is fixed on the top of the vehicle body, one end of the collector bar is mounted on the collector frame base, the other end of the collector bar is provided with a collector head, the trolley bus further includes a roof baffle and an electromagnetic limiting device, a drop bar notch is formed on the roof baffle, the electromagnetic limiting device is arranged on the top of the vehicle body, the electromagnetic limiting device has a first state and a second state, and in the first state, the electromagnetic limiting device can prevent the collector bar from dropping through the drop bar notch; in the second state, the electromagnetic limiting device allows the trolley pole to fall through the falling pole notch.

Optionally, the electromagnetic limiting device comprises a housing, a first limiting piece, a spring and an electromagnetic coil, the housing is fixed to the top of the vehicle body, the electromagnetic coil is powered off in the first state, and the first limiting piece extends out of the housing under the driving of the spring so as to block the trolley pole from falling through the falling pole opening; in the second state, the electromagnetic coil is electrified, and the first limiting piece retracts under the action of electromagnetic force so as to allow the trolley pole to fall through the falling rod opening.

Optionally, the limiting structure further includes a second limiting member disposed on the trolley pole, and in the first state, when the trolley pole falls from above the drop pole opening, the second limiting member falls on the first limiting member to form a limiting fit, so as to prevent the trolley pole from further falling.

Optionally, the second locating part further comprises an installation block, a connecting arm and a hook head, the installation block is installed on the trolley pole through a U-shaped bolt, the installation block is provided with an installation surface matched with the side surface of the trolley pole, one end of the connecting arm is connected with the installation block, the hook head is formed at the other end of the connecting arm, and the hook head is used for falling on the first locating part to form limiting matching.

Optionally, when the first limiting part and the second limiting part form a limiting fit, the distance between the collector head and the ground exceeds 2.5 m.

Optionally, the drop bar notch is configured to allow the collector head to descend to 1m-2m from the ground.

Optionally, the electromagnetic limiting device is arranged on the collector frame base.

Optionally, the number of the roof baffles is two, and the two roof baffles are respectively arranged on the left side and the right side of the top of the vehicle body and extend along the front-back direction of the vehicle body.

Optionally, when the trolley pole falls on the roof boarding, the distance between the trolley head and the ground is more than 3 m.

According to the current collection system, the falling rod opening is formed in the top baffle, and the electromagnetic limiting device is arranged on the top of the vehicle, so that the situation that the current collection rod freely falls to a position too low away from the ground when the current collection system fails, and potential safety hazards are caused by hitting pedestrians or other objects can be avoided; and the trolley pole can be lowered to the height which can be reached by the hand of a person, and the convenience of maintenance and operation is improved.

Optionally, a switch for controlling the electromagnetic limiting device to switch between the first state and the second state is arranged in a cab of the trolley bus.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic diagram of a trolley bus according to one embodiment of the present disclosure;

FIG. 2 is a schematic view of a roof barrier in a trolley bus according to one embodiment of the present disclosure;

fig. 3 is a front view of a collector frame in a trolley bus according to an embodiment of the present disclosure;

fig. 4 is a right side view of a collector frame in a trolley bus according to one embodiment of the present disclosure;

fig. 5 is a top view of a collector frame in a trolley bus according to an embodiment of the present disclosure;

fig. 6 is a perspective view of a first stopper in a trolley bus according to an embodiment of the present disclosure;

fig. 7 is a front view of a first limit stop in a trolley bus according to an embodiment of the present disclosure;

FIG. 8 is a right side view of a first stop in a trolley bus according to one embodiment of the present disclosure;

fig. 9 is a top view of a first limit stop in a trolley bus according to one embodiment of the present disclosure;

fig. 10 is a schematic cross-sectional view of a second stopper in a trolley bus according to an embodiment of the present disclosure.

Description of the reference numerals

10 vehicle roof baffle plate 11 drop rod notch

20 collector stand base 30 collector bar

31 tail part of main body part 32

40 trolley pole cylinder 50 trolley pole pulling spring

60 trolley pole supporting seat 160U-shaped bolt

80 collector head 110 cable

120 rope guide 130 rope winding wheel

140 second limiting member 141 mounting block

142 connecting arm 143 hook

144 installation face 150 electromagnetism stop device

151 first position limiting member of shell 152

153 spring

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

The present disclosure provides a trolley bus including a vehicle body and a power collecting rack.

As shown in fig. 1 to 5, the collector frame is arranged on the top of the vehicle body, and mainly comprises a collector frame base 20 and a collector bar 30. The trolley frame base 20 is fixed on the top of the vehicle body, and one end of the trolley pole 30 is movably mounted on the trolley frame base 20, so that the trolley pole 30 can be driven by a driving device (for example, a trolley pole cylinder 40 and a trolley pole pulling spring 50) to ascend and descend, and can swing left and right under the action of external force. The other end of the trolley pole 30 is provided with a trolley head 80. One end of the trolley pole pulling spring 50 is connected with the trolley pole 30, and the other end is connected with the trolley frame base 20. The trolley pole cylinder 40 is used for controlling the trolley pole 30 to descend, and the trolley pole pulling spring 50 is used for controlling the trolley pole 30 to ascend. The trolley pole pulling-up spring 50 provides pulling-up force for the trolley pole 30, in the pole lifting process, a push rod of the trolley pole cylinder 40 contracts, the trolley pole pulling-up spring 50 pulls up the trolley pole 30, and after the trolley pole cylinder 40 ascends to a desired position, the trolley pole cylinder 40 is locked and kept through air circuit control.

The top of the vehicle body is provided with a roof baffle 10, and the roof baffle 10 can be used for shielding the collector frame and other structures of the vehicle roof so as to improve the attractiveness of the whole vehicle. The falling height of the trolley pole 30 is limited due to the existence of the roof boarding 10, in this case, in order to enable the trolley pole 30 to fall to the height which can be reached by human hands so as to be convenient for a person to carry out carbon brush replacement operation, the roof boarding 10 is provided with a falling pole notch 11 for the trolley pole 30 to fall. During daily maintenance, if the carbon brush at the tail part of the trolley pole 30 needs to be replaced, the trolley pole 30 can be swung left and right to the position of the drop pole notch 11 through the rear cable 110, then the trolley pole 30 is pulled downwards, the trolley pole 30 falls through the drop pole notch 11, and the trolley head 80 falls to the height which can be reached by a hand of a person, so that the carbon brush replacement operation can be conveniently carried out by the person. That is, the depth of the drop bar notch 11 can ensure that the collector 80 can be lowered to a height of 1m to 2m (further, 1.2m to 1.8m, and further, about 1.6 m) from the ground. Here, the depth of the drop bar notch 11 can be determined according to the size of a specific vehicle model and the distance from the end of the trolley pole 30 connected with the trolley frame base 20 to the drop bar notch 11, so as to ensure that the trolley head 80 can be lowered to a height that can be reached by a human hand. The rear end of the car is provided with a rope guider 120 and a rope winding wheel 130, the rope 110 is wound around the rope winding wheel 130 and passes through the rope guider 120, and the upper end of the rope 110 is connected with the trolley pole 30.

In one embodiment, as shown in fig. 1 and 2, the number of the roof panels 10 may be two, two roof panels 10 are respectively disposed on the left and right sides of the roof of the vehicle body, the two roof panels 10 are disposed to face each other and extend in the front-rear direction of the vehicle body, and the roof panels 10 are perpendicular to the roof of the vehicle body. In other possible embodiments, the roof screen 10 may also be annular and surround the collector. In the process of running of the electric car, if the current collecting system breaks down suddenly, the trolley pole 30 may fall instantly, and if the trolley pole 30 just swings to the upper part of the drop pole notch 11 at the moment, pedestrians or other objects may be hit when the trolley pole 30 falls down, so that potential safety hazards exist.

In order to eliminate the installation hazard, in the present disclosure, as shown in fig. 3 to 5, an electromagnetic stopper 150 is provided on the vehicle body roof (for example, on the collector mount base 20), and the electromagnetic stopper 150 has a first state and a second state.

The drop bar notch 11 and the electromagnetic limiting device 150 are constructed in such a way that when the trolley pole 30 vertically and freely falls from the upper part of the drop bar notch 11, if the electromagnetic limiting device 150 is in the first state, the trolley pole 30 falls on the electromagnetic limiting device 150, and the electromagnetic limiting device 150 prevents the trolley pole 30 from continuously falling; at this time, if the electromagnetic stopper 150 is switched from the first state to the second state, the electromagnetic stopper 150 no longer blocks the trolley pole 30, and the trolley pole 30 can continuously drop through the drop pole notch 11, so that the trolley head 80 can drop to a height that can be reached by a human hand. Here, when the trolley pole 30 is dropped on the electromagnetic stopping device 150, the trolley head 80 is more than 2.5m from the ground to prevent the trolley pole 30 from hitting a pedestrian or other objects.

In the present disclosure, the falling rod notch 11 is arranged on the roof baffle 10, and the electromagnetic limiting device 150 is arranged on the roof, so that the trolley pole 30 can not fall to a position too low away from the ground when freely falling when the current collecting system fails, and potential safety hazards caused by hitting pedestrians or other objects can be avoided; and the trolley pole 30 can be lowered to the height which can be reached by the hand, and the convenience of maintenance and operation is improved.

In the present disclosure, the electromagnetic spacing device 150 may have any suitable structure. In one embodiment, the electromagnetic limiting device 150 may include a blocking rod which is arranged at the upper end of the drop rod notch 11 and driven by an electromagnet, and when the electromagnetic limiting device 150 is in the first state, the blocking rod is in a horizontal state, so as to block the trolley pole 30 from falling through the drop rod notch 11; when the electromagnetic limiting device 150 is in the second state, the stop lever is in the vertical state, so that the trolley pole 30 is allowed to fall through the falling pole notch 11.

In another embodiment, as shown in fig. 10, the electromagnetic limiting device 150 comprises a housing 151, a first limiting member 152, a spring 153 and an electromagnetic coil, wherein the housing 151 is fixed on the top of the vehicle body, in a first state, the electromagnetic coil is powered off, the first limiting member 152 is driven by the spring 153 to extend out of the housing 151, and at this time, if the trolley pole 30 vertically and freely falls from above the drop pole notch 11, the trolley pole 30 will fall on the first limiting member 152, so as to block the trolley pole 30 from falling through the drop pole notch 11; in the second state, the electromagnetic coil is powered on, the first limiting part 152 retracts under the action of electromagnetic force, and at this time, if the trolley pole 30 vertically and freely falls from the upper side of the drop rod notch 11, the trolley pole 30 cannot be blocked by the first limiting part 152, and can fall to a height that can be reached by a hand of a person through the drop rod notch 11. Here, the power on and power off of the electromagnetic coil may be controlled by a switch provided in the cab. For example, under normal conditions, the electromagnetic coil is powered off, the first stop member 152 extends out of the housing 151, and the trolley pole 30 is prevented from falling through the drop pole notch 11 on the roof baffle 10; when the carbon brush at the tail part of the trolley pole 30 needs to be replaced, the switch is pressed, the electromagnetic coil is electrified, the first limiting piece 152 retracts under the action of electromagnetic force, and the trolley pole 30 is allowed to fall through the falling pole notch 11 on the roof baffle 10.

In the present disclosure, the first limiting member 152 may directly contact with the shaft of the collector bar 30 to form a limiting fit, or may contact with another structure additionally disposed on the collector bar 30 to form a limiting fit, which is not limited in the present disclosure.

In one embodiment, as shown in fig. 3 and 4, the trolley bar 30 is further provided with a second limiting member 140, and when the electromagnetic limiting device 150 is in the first state, if the trolley bar 30 freely falls from above the falling bar notch 11 at this time, the second limiting member 140 falls on the first limiting member 152 to form a limiting fit with the first limiting member 150, so as to prevent the trolley bar 30 from further falling.

Further, as shown in fig. 6 to 9, the second stopper 140 may include a mounting block 141, a connecting arm 142, and a hook 143, the mounting block 141 being mounted on the trolley bar 30 by a U-bolt 160, the mounting block 141 having a mounting surface 144 fitted to a side surface of the trolley bar 30, one end of the connecting arm 142 being connected to the mounting block 141, and the hook 143 being formed at the other end of the connecting arm 142. When the trolley pole 30 falls freely from above the falling pole opening 11, the hook 143 will fall on the first stopper 152 to form a limit fit with the first stopper 152. With this structure, the second stopper 140 can be easily attached to the trolley bar 30, and the attachment stability can be ensured.

In addition, as shown in fig. 1, the electric vehicle of the present disclosure may further include a trolley pole support base 60, and the trolley pole support base 60 is fixed to the top of the vehicle body and disposed near the rear of the vehicle.

The trolley pole drop limitation principle of the electric vehicle according to one embodiment of the present disclosure is described in detail below.

In the running process of the electric car, the collecting system breaks down suddenly, the collecting rod 30 falls instantly, if the collecting rod 30 does not swing left and right before falling, the collecting rod 30 can be ensured not to fall too low due to the existence of the collecting rod supporting seat 60 at the rear part of the car roof and can be ensured to be at least over 3 meters away from the ground; if the trolley pole 30 swings left and right and then falls, under the normal condition, because of the existence of the roof baffle 10, when the swing angle of the trolley pole 30 is less than the position of the drop pole notch 11 on the roof baffle 10, the lowest position of the falling of the trolley pole 30 is determined by the roof baffle 10 and is about more than 3 meters away from the ground; if the trolley pole 30 swings to the position above the gap area of the drop pole, the trolley pole 30 can fall to the height of about 1.6 meters away from the ground without any limitation, and the driving safety is affected. Through the electromagnetic limiting device 150 additionally arranged at the corresponding position of the trolley frame base 20 and the second limiting piece 140 additionally arranged on the trolley pole 30, when the trolley pole 30 falls from the upper side of the falling pole opening area, the second limiting piece 140 on the trolley pole 30 can only directly fall on the first limiting piece 152 of the electromagnetic limiting device 150 and cannot continuously fall through the falling pole opening 11 of the roof baffle 10, the distance between the ground and the ground is guaranteed to exceed 2.5 meters, and the driving safety is guaranteed. When the trolley head 80 at the tail end of the trolley pole 30 needs to be maintained, a switch in the cab is pressed down, so that the electromagnetic limiting device 150 is unlocked for limiting and locking (namely switched to the second state), the first limiting member 152 no longer blocks the second limiting member 140, the trolley pole 30 can fall to a position which is less than 1.6 meters away from the ground through the drop rod opening 11 on the roof baffle 10, and the convenience of maintenance is ensured.

The trolley bus disclosed by the invention can be a double-source trolley bus in particular. The double-source trolley bus adopts a power grid and battery double-power supply, can realize that flexible charging is not completely limited by an overhead power grid, and has the advantages of small battery capacity and no need of fixed-point charging and replacing.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A trolley bus comprises a trolley body and a collector frame, wherein the collector frame comprises a collector frame base (20) and a collector bar (30), the collector frame base (20) is fixed on the top of the trolley body, one end of the collector bar (30) is installed on the collector frame base (20), the other end of the collector bar is provided with a collector head (80), the trolley bus is characterized by further comprising a roof baffle (10) and an electromagnetic limiting device (150), a drop bar notch (11) is formed in the roof baffle (10), the electromagnetic limiting device (150) is arranged on the top of the trolley body, the electromagnetic limiting device (150) has a first state and a second state, and in the first state, the electromagnetic limiting device (150) can prevent the collector bar (30) from falling through the drop bar notch (11); in the second state, the electromagnetic limiting device (150) allows the trolley pole (30) to fall through the falling pole notch (11).

2. A trolley bus as claimed in claim 1, characterised in that the electromagnetic limiting device (150) comprises a housing (151), a first limiting member (152), a spring (153) and an electromagnetic coil, the housing (151) is fixed on the top of the vehicle body, the electromagnetic coil is de-energized in the first state, the first limiting member (152) is driven by the spring (153) to extend out of the housing (151) so as to block the trolley pole (30) from falling through the falling pole notch (11); in the second state, the electromagnetic coil is electrified, and the first limiting piece (152) retracts under the action of electromagnetic force so as to allow the trolley pole (30) to fall through the falling pole notch (11).

3. A trolley bus according to claim 2, characterised in that the trolley pole (30) is provided with a second stop (140), and that in the first state, when the trolley pole (30) falls from above the drop pole opening (11), the second stop (140) falls on the first stop (152) to form a stop fit, so that the trolley pole (30) is prevented from further falling.

4. A trolley bus according to claim 3, characterised in that the second stop (140) further comprises a mounting block (141), a connecting arm (142) and a hook head (143), the mounting block (141) being mounted on the trolley pole (30) by means of a U-bolt (160), the mounting block (141) having a mounting surface (144) adapted to the side of the trolley pole (30), one end of the connecting arm (142) being connected to the mounting block (141), the hook head (143) being formed at the other end of the connecting arm (142), the hook head (143) being adapted to fall on the first stop (152) to form a stop fit.

5. A trolley bus as claimed in claim 3, characterized in that the collector head (80) is more than 2.5m from the ground when the first retaining element (152) is in retaining engagement with the second retaining element (140).

6. A trolley bus as claimed in claim 1, characterized in that the drop bar break (11) is configured to allow the trolley head (80) to be lowered to 1m-2m from the ground.

7. A trolley bus as claimed in claim 1, characterised in that the electromagnetic stopping means (150) are arranged on the collector frame foot (20).

8. A trolley bus as claimed in any one of claims 1-7, characterized in that the roof fenders (10) are two oppositely disposed, and that the two roof fenders (10) are disposed on the left and right sides of the top of the vehicle body and extend in the front-rear direction of the vehicle body.

9. A trolley bus as claimed in claim 1, characterized in that a switch for controlling the electromagnetic spacing device (150) to switch between the first and second state is arranged in the cab of the trolley bus.

10. A trolley bus as claimed in claim 1, characterized in that the distance of the collector head (80) from the ground is above 3m when the collector bar (30) is dropped on the roof hatch (10).