CN220813249U - Mechanical arm limiting device - Google Patents

Abstract

The utility model provides a mechanical arm stop device, includes the screen scarifier that chassis, organism and mechanical arm make up, lies in the mechanical arm both sides on the chassis and all is equipped with supporting part, and is equipped with laser head and receiver on the both sides supporting part respectively. Each supporting part is all including locating the electric putter on the chassis, and electric putter's flexible end is equipped with the support column, is equipped with even board on the support column, and even the board rotates and is equipped with the support arm, is equipped with first motor on even the board, and first motor passes through drive division with the support arm to be connected, is equipped with the alarm on the support arm, and it has the laser head to distribute on the support arm of one side, and the opposite side support arm distributes has the receiver that corresponds the laser head. According to the utility model, the laser heads, the receivers and the alarm are respectively arranged on the two support arms, when the mechanical arm touches the laser emitted by the laser heads, the alarm can give an alarm to remind a worker to stop operating or control the mechanical arm to descend, so that the limiting effect on the mechanical arm is achieved, and the safety of the screen scarifier and the worker is improved.

Description

Mechanical arm limiting device

Technical Field

The utility model belongs to the field of screen scarifiers, and particularly relates to a mechanical arm limiting device.

Background

The railway line has great influence on the state and performance of the line through long-term use, dirt on the ballast bed and broken ballast. The dirty ballast firstly causes the ballast bed to lose elasticity and drainage performance, and then causes the whole ballast bed to be hardened. The "hardening" of the ballast bed can have an impact on train transportation safety. When the road bed is hardened, a cleaning must be performed. The method for treating the slab settlement phenomenon generally uses a railway screen scarifier to drive on a railway to clean broken stone and pebbles under the sleeper, the sleeper after cleaning is used for backfilling new railway ballast and pebbles under the sleeper, and then the railway after cleaning is stabilized by manual tamping.

When the pebbles on the ballast bed are cleaned by the screen cleaning machine, the mechanical arm of the screen cleaning machine can be adjusted, meanwhile, high-voltage wires are paved above the ballast bed, and sometimes the mechanical arm of the screen cleaning machine can touch the high-voltage wires, so that the screen cleaning machine and operators are in electric shock hazard.

Disclosure of utility model

The utility model aims to provide a mechanical arm limiting device for solving the technical problems in the background technology.

In order to achieve the above purpose, the specific technical scheme of the mechanical arm limiting device provided by the utility model is as follows:

The utility model provides a mechanical arm stop device, includes that chassis, organism and mechanical arm make up the screen scarifier that becomes, and the organism is located on the chassis, is located organism one side on the chassis and is equipped with the mechanical arm, is located the mechanical arm both sides on the chassis and all is equipped with supporting part, and is equipped with laser head and receiver on the both sides supporting part respectively. Each supporting part is all including locating the electric putter on the chassis, and electric putter's flexible end is equipped with the support column, is equipped with even board on the support column, and it is equipped with the support arm to link to rotate on the board, is equipped with first motor on even board, and first motor passes through drive portion with the support arm to be connected, is equipped with the alarm on the support arm, and it has the laser head to distribute on the support arm of one side supporting part, and it has the receiver that corresponds the laser head to distribute on the support arm of opposite side supporting part, and laser head, receiver and alarm electricity are connected.

The mechanical arm limiting device has the following advantages:

1. according to the utility model, the laser heads, the receivers and the alarm are respectively arranged on the two support arms, the support arms which are respectively arranged correspondingly are lifted to the proper positions below the high-voltage line by the two electric push rods, when the mechanical arm touches the laser emitted by the laser heads, the alarm can give an alarm to remind a worker to stop operating or control the mechanical arm to descend, so that the limiting effect on the mechanical arm is achieved, and the safety of the screen cleaner and the worker is improved.

2. According to the utility model, the first motor is connected with the support arm through the transmission part, so that the support arm can be folded when not working, and the occupied space of the support arm is saved.

Drawings

FIG. 1 is a schematic diagram of a mechanical arm limiting device according to the present utility model;

FIG. 2 is a schematic view of two support structures according to the present utility model;

FIG. 3 is a schematic diagram of a driving part structure of the present utility model;

FIG. 4 is a schematic view of a link plate and arm connection according to the present utility model;

FIG. 5 is a schematic view of a strut, a first fixed block and a spacing portion of the present utility model;

FIG. 6 is a schematic view of the upper positioning portion of the strut of the present utility model.

The figure indicates:

1. a screen scarifier; 101. a chassis; 102. a body; 103. a mechanical arm; 2. an electric push rod; 21. a first groove; 22. square holes; 3. a laser head; 4. a receiver; 5. an alarm; 6. a first motor; 7. a transmission part; 71. a worm; 72. a worm wheel; 8. a connecting plate; 9. a telescopic rod; 10. a bump; 11. a driving section; 111. a second motor; 112. a support block; 113. a screw; 12. a first fixed block; 121. a through hole; 122. a chute; 13. a limit part; 131. a slide block; 132. a baffle; 133. a first spring; 14. a second fixed block; 141. a support rod; 1411. a through groove; 15. a positioning part; 151. a first limiting block; 1511. a second groove; 152. a second limiting block; 153. a connecting block; 154. a column; 155. a second spring; 16. a support arm; 17. and (5) supporting the column.

Detailed Description

In order to better understand the purpose, structure and function of the present utility model, a mechanical arm limiting device of the present utility model is described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 to 6, the mechanical arm 103 limiting device of the utility model comprises a screen scarifier 1 formed by combining a chassis 101, a machine body 102 and a mechanical arm 103, wherein the machine body 102 is arranged on the chassis 101, and the mechanical arm 103 is arranged on one side of the chassis 101, which is positioned on the machine body 102. When the ballast bed is hardened, the crawler belt on the chassis 101 of the screen scarifier 1 can be directly opened on the rail, and then the rake teeth on the mechanical arm 103 of the screen scarifier 1 can clean pebbles on the ballast bed.

The supporting parts are arranged on the two sides of the mechanical arm 103 on the chassis 101, the laser heads 3 and the receivers 4 are respectively arranged on the supporting parts on the two sides, the laser heads 3 emit laser, the receivers 4 can receive the laser emitted by the laser heads 3, and laser areas are formed in the areas of the laser heads 3 and the receivers 4. Specifically, each supporting part is including locating the electric putter 2 on the chassis 101, the flexible end of electric putter 2 is equipped with support column 17, be equipped with on the support column 17 and link board 8, it is equipped with support arm 16 to link to rotate on the board 8, be equipped with first motor 6 on linking board 8, electric putter 2 and first motor 6 are connected with screen cleaning machine 1 power, first motor 6 passes through drive portion 7 with support arm 16 and is connected, the front side at each support arm 16 is equipped with alarm 5, it has laser head 3 to distribute on the support arm 16 of one side supporting part, it has the receiver 4 that corresponds laser head 3 to distribute on the support arm 16 of opposite side supporting part, laser head 3, receiver 4 and alarm 5 electricity are connected.

Before the screen scarifier 1 works, a first motor 6 on two supporting parts is started, the first motor 6 rotates a support arm 16 to a proper position around a connection point of the support arm 16 and a connecting plate 8 through a transmission part 7, an electric push rod 2 correspondingly lifts the support arm 16 on the connecting plate 8 to a proper position below a high-voltage line, then a laser head 3 emits laser, a receiver 4 receives the laser, when the mechanical arm 103 works, any part of the mechanical arm 103 touches a laser area, an alarm 5 on each support arm 16 can send an alarm to remind a worker that the mechanical arm 103 exceeds a safety area, so that the worker stops lifting the mechanical arm 103 upwards, the limiting effect of the mechanical arm 103 is achieved, and the safety of the worker and a vehicle is simultaneously protected.

The middle transmission part 7 comprises a worm 71 on the output end of the motor, a first groove 21 is formed on one end of the support arm 16, which is close to the connecting plate 8, a worm wheel 72 is rotationally arranged in the first groove 21, and the worm 71 is meshed with the worm wheel 72. When the limiting device is used, the first motor 6 rotates to drive the worm 71 on the output end of the limiting device, the worm 71 rotates to drive the worm wheel 72 meshed with the limiting device, the worm wheel 72 rotates, the support arm 16 synchronously rotates along with the worm wheel 72, and when the support arm 16 rotates to a proper position through the worm wheel 72, the first motor 6 stops working. The worm wheel 72 and the worm 71 are adopted in the transmission mode, after the support arm 16 rotates to a proper position, the worm 71 can perform locking work on the worm wheel 72, so that the bearing capacity of the first motor 6 on the support arm 16 is reduced, and the service life of the first motor 6 is prolonged. In addition, after the first motor 6 rotates reversely to rotate the support arm 16 to the initial position through the transmission part 7, the occupied space of the support arm 16 can be reduced. It should be noted that, when the limiting device is used, the electric push rod 2 may be driven to drive each component on the connecting plate 8 to lift to a proper position, then the first motor 6 is started, and the first motor 6 drives each component on the support arm 16 to rotate to a proper position through the transmission part 7 to perform work, which is not limited too much.

Preferably, telescopic rods 9 are slidably arranged in the support arms 16, and the laser heads 3 and the receivers 4 are correspondingly distributed on the telescopic rods 9. A square hole 22 is formed on one side of the support arm 16, a lug 10 is arranged in the square hole 22 in a sliding mode, the lug 10 is connected with the telescopic rod 9, a driving part 11 is arranged on one side of the support arm 16, which is same with the lug 10, and the driving part 11 and the lug 10 work cooperatively. Specifically, the driving part 11 includes a second motor 111 and a supporting block 112, where the arm 16 is on one side of the bump 10, a screw 113 is provided at an output end of the second motor 111, a bottom end of the screw 113 is rotatably disposed on the supporting block 112, and the screw 113 is in threaded connection with the bump 10. In order to prevent the mechanical arm 103 from exceeding the laser region when in adjustment, the second motor 111 can drive the screw 113 arranged at the output end of the mechanical arm 103 to rotate, and the screw 113 rotates to drive the telescopic rod 9 connected with the screw to extend out of the support arm 16 through the lug 10, so that the distance from the laser region to the outside is increased, the laser region can effectively cover the position of the mechanical arm 103 at the high point, and the practicability of the limiting device of the mechanical arm 103 is increased. The arrangement positions and the number of the laser heads 3 and the receivers 4 can be selected and installed according to actual use requirements, and are not limited in any way.

As another preferred aspect, a first fixing block 12 is provided on one side of the arm 16, a through hole 121 is formed in the first fixing block 12, a chute 122 is formed in the through hole 121, and a limit portion 13 is slidably provided in the chute 122. Meanwhile, a second fixing block 14 is arranged on the side wall of the supporting column 17, the first fixing block 12 and the second fixing block 14 are arranged in the same direction, a supporting rod 141 is arranged on the second fixing block 14, the supporting rod 141 is arc-shaped, a positioning part 15 is arranged at the free end of the supporting rod 141, a through hole 121 can penetrate through the supporting rod 141, and the limiting part 13 is matched with the positioning part 15. Specifically, the center point of the supporting rod 141 is the connection point between the supporting arm 16 and the connecting plate 8, when the first motor 6 drives the supporting arm 16 to rotate through the transmission part 7, the through hole 121 on the first fixing plate of the supporting arm 16 moves along the supporting rod 141, and when the supporting arm 16 rotates to a proper position, the limiting part 13 in the through hole 121 is matched and connected with the positioning part 15 on the supporting rod 141, so that the supporting arm 16 is fixed on the supporting rod 141, and meanwhile, the supporting effect of the supporting rod 141 on the supporting arm 16 is also achieved, the supporting arm 16 is prevented from tilting, and meanwhile, the bearing of the transmission part 7 is also reduced.

As shown in fig. 5 and 6, the limiting portion 13 includes a sliding block 131 slidably disposed in the sliding groove 122, a baffle 132 is disposed on a sidewall of the first fixed block 12, and a first spring 133 is disposed between the first fixed block 12 and the baffle 132 in the sliding groove 122. The support rod 141 is provided with a through groove 1411, the positioning part 15 comprises a first limiting block 151 on the support rod 141, a second limiting block 152 is slidably arranged above the first limiting block 151 on the support rod 141, a second groove 1511 matched with the second limiting block 152 is formed in the first limiting block 151, a connecting block 153 is arranged in the second limiting block 152, the connecting block 153 is connected with the second limiting block 152, the connecting block 153 is slidably arranged in the through groove 1411, an upright post 154 is arranged on the connecting block 153, and a second spring 155 is arranged between the bottom of the connection and the bottom of the through groove 1411.

The bottom surface of the first limiting block 151 is arc-shaped, and the top surface and the bottom surface of the second limiting block 152 are inclined surfaces. When the arm 16 drives the first fixing plate to move along the strut 141 to the bottom surface of the first limiting block 151, the arm 16 continues to rotate, the slider 131 in the through hole 121 contacts with the first limiting block 151 and moves outwards along the cambered surface of the first limiting block 151, and the slider 131 compresses the first spring 133 when moving. When the sliding block 131 moves to the upper portion of the first limiting block 151 and is separated from the first limiting block 151, the first motor 6 stops working, the first spring 133 applies force to the sliding block 131, and pushes the sliding block 131 towards the direction of the supporting rod 141 and limits the sliding block 131 through the vertical rod, so that the sliding block 131 is supported by the first limiting block 151, namely the supporting rod 141 supports the supporting arm 16, the bearing capacity of the transmission part 7 on the supporting arm 16 is reduced, and the service life of the transmission part 7 is prolonged.

If the sliding block 131 is separated from the first limiting block 151, the first motor 6 drives the supporting arm 16 to continue to rotate upwards through the transmission part 7, then the sliding block 131 in the through hole 121 moves along with the sliding block 131 and contacts with the second limiting block 152 when moving, the sliding block 131 moves along with the inclined plane at the bottom of the second limiting block 152, when the sliding block 131 moves to above the second limiting block 152, the first motor 6 reverses and drives the supporting arm 16 to descend through the transmission part 7, the supporting arm 16 descends to drive the sliding block 131 to press the second limiting block 152, the second limiting block 152 descends to compress the second spring 155, when the second limiting block 152 descends to the second groove 1511 of the first limiting block 151, the maximum diameter of the second limiting block 152 is coincident with the maximum diameter of the first limiting block 151, the supporting arm 16 continues to drive the sliding block 131 in the first fixed plate and the through hole 121 thereof to descend along the inclined plane at the upper part of the second limiting block 152, when the sliding block 131 slides to compress the first spring 133, and after the sliding block 131 is separated from the first limiting block 151, the second spring 155 pushes the second limiting block 152 to the initial position upwards, and then the first spring 133 pushes the sliding block 131 to move along the second limiting block 152 to the first limiting block 151, and the maximum diameter of the sliding block 151 is separated from the first limiting block 151.

The using method comprises the following steps: the two first motors 6 are started, the first motors 6 drive the support arms 16 to rotate to a proper position through the corresponding transmission parts 7, then the limiting parts 13 on the first fixing plates of the support arms 16 and the positioning parts 15 on the supporting rods 141 are fixedly limited, then the electric push rod 2 is started to lift the corresponding support arms 16 to a proper position, then the laser head 3 is started, and the receiver 4 receives laser to limit the mechanical arm 103.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (7)

1. A mechanical arm (103) limiting device, characterized in that: the machine comprises a chassis (101), a machine body (102) and a screen scarifier (1) formed by combining mechanical arms (103), wherein the machine body (102) is arranged on the chassis (101), the mechanical arms (103) are arranged on one side of the chassis (101) which is positioned on the machine body (102), supporting parts are arranged on two sides of the mechanical arms (103) on the chassis (101), and a laser head (3) and a receiver (4) are respectively arranged on the supporting parts on two sides;

Each supporting part is including locating electric putter (2) on chassis (101), electric putter (2) flexible end is equipped with support column (17), be equipped with on support column (17) and link board (8), it is equipped with support arm (16) to link to rotate on board (8), be equipped with first motor (6) on linking board (8), first motor (6) are connected through drive portion (7) with support arm (16), be equipped with alarm (5) on support arm (16), it has laser head (3) to distribute on support arm (16) of one side supporting part, it has receiver (4) that correspond laser head (3) to distribute on support arm (16) of opposite side supporting part, laser head (3), receiver (4) and alarm (5) electricity are connected.

2. A mechanical arm (103) stop device according to claim 1, characterized in that: the transmission part (7) comprises a worm (71) at the output end of the motor, a first groove (21) is formed in one end, close to the connecting plate (8), of the support arm (16), a worm wheel (72) is rotationally arranged in the first groove (21), and the worm (71) is meshed with the worm wheel (72).

3. A mechanical arm (103) stop device according to claim 2, characterized in that: each support arm (16) is provided with a telescopic rod (9) in a sliding mode, laser heads (3) and receivers (4) are correspondingly distributed on each telescopic rod (9), a square hole (22) is formed in one side of each support arm (16), a lug (10) is arranged in the sliding mode in each square hole (22), each lug (10) is connected with each telescopic rod (9), a driving part (11) is arranged on one side of each support arm (16) and one side of each lug (10), and each driving part (11) is matched with each lug (10).

4. A mechanical arm (103) stop device according to claim 3, characterized in that: the driving part (11) comprises a second motor (111) and a supporting block (112), wherein the supporting arm (16) and the second motor (111) are arranged on one side of the protruding block (10), a screw rod (113) is arranged at the output end of the second motor (111), the screw rod (113) is rotatably arranged with the supporting block (112), and the screw rod (113) is in threaded connection with the protruding block (10).

5. The mechanical arm (103) stop device according to claim 4, wherein: a first fixed block (12) is arranged on one side of the support arm (16), a through hole (121) is formed in the first fixed block (12), a sliding groove (122) is formed in the through hole (121), and a limiting part (13) is arranged in the sliding groove (122) in a sliding mode;

The side wall of the support column (17) is provided with a second fixed block (14), the second fixed block (14) is provided with a support rod (141), the free end of the support rod (141) is provided with a positioning part (15), the through hole (121) can penetrate through the support rod (141), and the limiting part (13) is matched with the positioning part (15).

6. The mechanical arm (103) stop device according to claim 5, wherein: the limiting part (13) comprises a sliding block (131) which is arranged in the sliding groove (122) in a sliding way, a baffle (132) is arranged on the side wall of the first fixed block (12), and a first spring (133) is arranged between the first fixed block (12) and the baffle (132) in the sliding groove (122).

7. The mechanical arm (103) stop device according to claim 6, wherein: the utility model discloses a novel energy-saving device is characterized in that a through groove (1411) is formed in each supporting rod (141), each positioning part (15) comprises a first limiting block (151) on each supporting rod (141), a second limiting block (152) is slidably arranged above each first limiting block (151) on each supporting rod (141), a second groove (1511) which is matched with each second limiting block (152) is formed in each first limiting block (151), a connecting block (153) is arranged in each second limiting block (152), each connecting block (153) is connected with each second limiting block (152), each connecting block (153) is slidably arranged in each through groove (1411), each connecting block (153) is provided with a stand column (154), and a second spring (155) is arranged between the bottom surface of each connecting block and the bottom surface of each through groove (1411).