A cleaning vehicle and its rotating throwing belt

Abstract

The present invention relates to the technical field of railway maintenance machinery, and in particular, to a screening vehicle and a rotary throwing belt thereof. The rotary throwing belt comprises a conveying bracket, a rotary conveyor belt rotatably mounted on the conveying bracket, and an automatic obstacle avoidance device for controlling the conveying bracket to automatically avoid obstacles; the automatic obstacle avoidance device comprises a detection line and a first control switch; the first control switch is mounted on the first side of the conveying bracket; one end of the detection line is fixedly connected to the second side of the conveying bracket, and the other end extends around the outer peripheral side of the conveying bracket and is tensionedly connected to the first control switch, and the detection line and the conveying bracket are spaced apart to control the opening and closing of the first control switch. The rotary throwing belt achieves automatic obstacle avoidance by adding an automatic obstacle avoidance device on the outer peripheral side of the rotary conveyor belt, without the need for outdoor staff.

Description

Technical Field

[0001] The present application relates to the technical field of railway maintenance machinery, and in particular to a cleaning and screening vehicle and a rotary throwing belt thereof. Background Art

[0002] In the cleaning and screening series products, it is necessary to use a revolving throwing belt to throw the dirt after passing through the vibrating screen to both sides of the roadbed. The revolving throwing belt needs to turn to one side of the railway line. At this time, the distance between the farthest end of the revolving throwing belt and the center of the line exceeds the distance from the pole to the center of the line, that is, there is a risk of collision between the revolving throwing belt and the pole. The usual practice is to arrange special operators to follow the vehicle and stand next to the revolving throwing belt. When the revolving throwing belt is seen approaching the pole, the revolving throwing belt is operated to rotate a certain angle so that the revolving throwing belt avoids the pole, and then returns to the original angle after avoiding the pole. However, this working method is prone to human error. At the same time, the dust in the air of the cleaning and screening series products is large during operation, and the workers standing outdoors suffer great health hazards. Summary of the invention

[0003] In an embodiment of the present application, a screening vehicle and a rotating conveyor belt thereof are provided. The rotating conveyor belt can automatically avoid obstacles by adding an automatic obstacle avoidance device on the outer peripheral side of the rotating conveyor belt. No outdoor workers are required, which solves the problem that the rotating conveyor belt of the existing screening vehicle is prone to human error in operation and endangers the health of outdoor workers.

[0004] According to a first aspect of an embodiment of the present application, there is provided a rotary throwing belt, the rotary throwing belt comprising a conveying support, a rotary conveying belt mounted on the conveying support so as to be relatively movable, and an automatic obstacle avoidance device for controlling the conveying support to automatically avoid obstacles;

[0005] Along the width direction of the rotary conveyor belt, the conveying support has a first side and a second side;

[0006] The automatic obstacle avoidance device includes a detection line and a first control switch; the first control switch is installed on the first side of the conveying bracket;

[0007] One end of the detection line is fixedly connected to the second side of the conveying bracket, and the other end extends around the outer peripheral side of the conveying bracket and is tensionedly connected to the first control switch. The detection line is spaced apart from the conveying bracket to control the opening and closing of the first control switch.

[0008] Preferably, the automatic obstacle avoidance device further comprises a fixed support and a movable support rod assembly;

[0009] A fixed support is fixedly installed on the first side and the second side of the conveying bracket, and the fixed support extends along the width direction of the rotary conveyor belt;

[0010] Two movable support rod assemblies capable of swinging are installed at the outer end of the conveying bracket, and the movable support rod assemblies extend toward the outer side of the conveying bracket;

[0011] A wire groove for accommodating the detection line is provided at one end of the fixed support member away from the conveying bracket and at one end of the movable support rod assembly away from the conveying bracket, and the wire groove is used to guide the detection line.

[0012] Preferably, the automatic obstacle avoidance device further comprises a fixing ring installed on the second side of the conveying bracket; one end of the detection line is connected to the conveying bracket through the fixing ring.

[0013] Preferably, the two movable support rod assemblies are symmetrically arranged;

[0014] The movable support rod assembly includes an L-shaped movable support rod, a second control switch and a spring;

[0015] The second control switch is installed on one side of the conveying bracket;

[0016] The bent portion of the L-shaped movable support rod is hinged to the end of the conveying bracket, one end of which is in contact with the trigger end of the second control switch, and the other end of which is provided with the wire groove;

[0017] The spring is located between the bent portion of the L-shaped movable support rod and the second control switch, and connects the conveying bracket and the L-shaped movable support rod, and is used to control the resetting of the L-shaped movable support rod.

[0018] Preferably, a fixed hinge support corresponding to the L-shaped movable support rod is fixedly installed at the end of the conveying bracket;

[0019] The bent portion of the L-shaped movable support rod is hinged to the fixed hinge support.

[0020] Preferably, a first pulley is provided at the other end of the L-shaped movable support rod, and a sliding groove of the first pulley forms the wire groove.

[0021] Preferably, the fixed support member comprises a support rod and a second pulley mounted on the top of the support rod, and a slide groove of the second pulley forms the wire groove.

[0022] Preferably, both the first control switch and the second control switch are limit switches;

[0023] When the first control switch or the second control switch is turned on, the conveying support rotates in the opposite direction to the current rotation direction.

[0024] Preferably, the detection line is a touch line.

[0025] According to a first aspect of an embodiment of the present application, a screening vehicle is provided, comprising a control unit and any one of the rotating throwing belts provided by the above technical solution, wherein a first control switch of the rotating throwing belt is signal-connected to the control unit.

[0026] The cleaning trolley and the rotary throwing belt provided in the embodiment of the present application have the following beneficial effects:

[0027] The rotating throwing belt provided in the embodiment of the present application includes an automatic obstacle avoidance device for controlling the automatic obstacle avoidance of the conveying bracket, the automatic collision avoidance device includes a detection line arranged around the outer end of the conveying bracket and a first control switch controlled by the detection line, the detection line and the conveying bracket are arranged at an interval, obstacles such as wire poles are detected by the detection line, and when the detection line touches the obstacle, the touch line contacts the wire pole to trigger the first control switch to turn on, and then control the rotating throwing belt to rotate in the opposite direction to avoid the obstacle, thereby realizing automatic obstacle avoidance of the rotating throwing belt; obstacles can be detected by the detection line, and there is no need to arrange outdoor staff to check for obstacles outside the screening vehicle, thereby ensuring the health of the staff; therefore, the above-mentioned rotating throwing belt can realize automatic obstacle avoidance without the need for outdoor staff, thereby solving the problem that the rotating throwing belt of the existing screening vehicle is prone to human error operation and endangers the health of outdoor staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0029] Figure 1 A schematic diagram of a partial structure of a cleaning vehicle provided in an embodiment of the present application;

[0030] Figure 2 for Figure 1 The schematic diagram of the working state of the rotary throwing belt of the cleaning vehicle provided in;

[0031] Figure 3 for Figure 2 The structural diagram of the automatic obstacle avoidance device provided in;

[0032] Figure 4 for Figure 3 A schematic diagram of the partially enlarged structure of part A of the automatic obstacle avoidance device provided in.

[0033] Reference numerals:

[0034] 1-screening vehicle; 11-revolving throwing belt; 12-conveying bracket; 13-revolving conveyor belt; 14-automatic obstacle avoidance device; 15-line rod; 121-first side; 122-second side; 141-detection line; 142-first control switch; 143-support rod; 144-movable support rod assembly; 145-fixing ring; 146-second pulley; 1441-L-shaped movable support rod; 1442-second control switch; 1443-spring; 1444-fixed hinge support; 1445-pin shaft; 1446-first pulley. DETAILED DESCRIPTION

[0035] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0036] like Figure 1 and Figure 2 As shown in the structure, Figure 1 The partial structure of the cleaning vehicle 1 is shown. Figure 2 This is a top view of the structure of the cleaning vehicle 1. Figure 2 The rotating throwing belt 11 of the intermediate cleaning vehicle 1 is in a rotating state, and an angle is formed between the rotating throwing belt 11 and the vehicle body; the embodiment of the present application provides a cleaning vehicle 1, which includes a vehicle body (not shown in the figure), a control unit (not shown in the figure) and a rotating throwing belt 11; wherein:

[0037] like Figure 3 As shown in the structure, the revolving conveyor belt 11 includes a conveying bracket 12, a revolving conveyor belt 13 which can be relatively movably mounted on the conveying bracket 12, and an automatic obstacle avoidance device 14 for controlling the conveying bracket 12 to automatically avoid obstacles; Figure 1 As shown in the structure, the conveying bracket 12 is installed on the top of the vehicle body. The conveying bracket 12 can move along the length direction of the vehicle body, and can also rotate relative to the vehicle body, so that the revolving throwing belt 11 turns to one side or the other side of the railway line, and the screened dirt is thrown to both sides of the roadbed through the revolving throwing belt 11; the revolving conveyor belt 13 is installed on the conveying bracket 12, and the revolving conveyor belt 13 and dirt and other objects on the revolving conveyor belt 13 are supported by the conveying bracket 12, and can move relative to the conveying bracket 12, and dirt and other objects are transported by the movement of the revolving conveyor belt 13 relative to the conveying bracket 12; in order to prevent the revolving throwing belt 11 from being damaged due to the collision between the conveying bracket 12 and obstacles such as the wire pole 15, an automatic obstacle avoidance device 14 is added to the outer end of the revolving throwing belt 11;

[0038] like Figure 3As shown in the structure, along the width direction of the rotary conveyor belt 13, the conveying bracket 12 has a first side and a second side;

[0039] like Figure 3 and Figure 4 As shown in the structure, the automatic obstacle avoidance device 14 includes a detection line 141 and a first control switch 142; the first control switch 142 is installed on the first side of the conveying bracket 12; the first control switch 142 can be a limit switch; the first control switch 142 of the revolving throwing belt 11 is connected to the control unit signal; the detection line 141 can be a touch line; one end of the detection line 141 is fixedly connected to the second side of the conveying bracket 12, and the other end extends around the outer peripheral side of the conveying bracket 12 and is tensioned with the first control switch 142. The detection line 141 and the conveying bracket 12 are spaced apart to control the opening and closing of the first control switch 142; that is, the detection line 141 is semi-enclosedly installed at one end of the conveying bracket 12 away from the vehicle body. Except for the end of the detection line 141 connected to the conveying bracket 12, the middle part of the detection line 141 is spaced apart from the conveying bracket 12, and the detection line 141 is used to detect obstacles such as poles 15 on the outside of the vehicle body.

[0040] During the use of the above-mentioned rotating throwing belt 11, a detection line 141 such as a touch line with a certain degree of flexibility is used to enclose the part of the rotating conveyor belt 13 that may touch obstacles such as the wire rod 15. One end of the detection line 141 is fixed to the second side of the conveying bracket 12, and the other end is connected to the first control switch 142 installed on the first side of the conveying bracket 12. When obstacles such as the wire rod 15 approach the rotating throwing belt 11, they will first touch the detection line 141. At this time, the detection line 141 is tightened, driving the first control switch 142 to trigger the signal. The first control switch 142 is connected to the control unit signal of the screening vehicle 1, and the trigger signal is sent to the control unit. The control unit controls the conveying bracket 12 to rotate in the opposite direction to avoid the obstacle, thereby realizing the function of automatic obstacle avoidance. Since the detection line 141 forms a boundary line and has a certain distance from the outer contour of the rotating throwing belt 11, it provides a reaction time for the control unit, ensuring that the rotating throwing belt 11 can avoid obstacles such as the wire rod 15 in time.

[0041] The rotating throwing belt 11 provided in the embodiment of the present application includes an automatic obstacle avoidance device 14 for controlling the conveying support 12 to automatically avoid obstacles. The automatic collision avoidance device includes a detection line 141 arranged around the outer end of the conveying support 12 and a first control switch 142 controlled to open and close by the detection line 141. The detection line 141 and the conveying support 12 are arranged at intervals. Obstacles such as the wire rod 15 are detected by the detection line 141. When the detection line 141 touches the obstacle, the touch line contacts the wire rod 15 to trigger the first control switch 142 to turn on, thereby controlling the rotating throwing belt 11 to rotate in the opposite direction to avoid the obstacle, thereby realizing automatic obstacle avoidance of the rotating throwing belt 11; obstacles can be detected by the detection line 141, and there is no need to arrange outdoor staff to check for obstacles outside the screening vehicle 1, thereby ensuring the health of the staff; therefore, the above-mentioned rotating throwing belt 11 can realize automatic obstacle avoidance without the need for outdoor staff, thereby solving the problem that the rotating throwing belt 11 of the existing screening vehicle 1 is prone to human error operation and endangers the health of outdoor staff.

[0042] In order to achieve the spacing between the detection line 141 and the delivery bracket 12, as shown in FIG. Figure 3 and Figure 4 As shown in the structure, the automatic obstacle avoidance device 14 also includes a fixed support and a movable support rod assembly 144; a fixed support is fixedly installed on the first side and the second side of the conveying bracket 12, and the fixed support extends along the width direction of the rotary conveyor belt 13; two movable support rod assemblies 144 that can swing are installed on the outer end of the conveying bracket 12, and the movable support rod assembly 144 extends toward the outside of the conveying bracket 12; a wire groove for accommodating the detection line 141 is provided at one end of the fixed support away from the conveying bracket 12 and at one end of the movable support rod assembly 144 away from the conveying bracket 12, and the wire groove is used to guide the detection line 141.

[0043] The above-mentioned revolving throwing belt 11 is provided with fixed supporting parts and movable supporting rod assembly 144 on both sides of the conveying bracket 12, and wire grooves for accommodating the detection line 141 are provided at the ends of the fixed supporting parts and the movable supporting rod assembly 144. Therefore, the detection line 141 can be installed in a semi-enclosed form around the outer end of the conveying bracket 12 through the fixed supporting parts and the movable supporting rod assembly 144 to realize the detection of obstacles.

[0044] like Figure 3 As shown in the structure, the automatic obstacle avoidance device 14 also includes a fixing ring 145 installed on the second side of the conveying bracket 12 ; one end of the detection line 141 is connected to the conveying bracket 12 through the fixing ring 145 .

[0045] like Figure 3As shown in the structure, two movable support rod assemblies 144 are symmetrically arranged; the movable support rod assembly 144 includes an L-shaped movable support rod 1441, a second control switch 1442 and a spring 1443; the second control switch 1442 is installed on one side of the conveying bracket 12; the bending portion of the L-shaped movable support rod 1441 is hinged to the end of the conveying bracket 12, one end is abutted against the trigger end of the second control switch 1442, and the other end is provided with a wire groove; the spring 1443 is located between the bending portion of the L-shaped movable support rod 1441 and the second control switch 1442, and connects the conveying bracket 12 and the L-shaped movable support rod 1441, and is used to control the reset of the L-shaped movable support rod 1441. The second control switch 1442 can be a limit switch, and is connected to the control unit signal of the cleaning vehicle 1.

[0046] The movable support rod assembly 144 is symmetrically arranged on both sides of the end of the conveying support 12, and the bent portion of the L-shaped movable support rod 1441 is hinged to the conveying support 12, so that when the movable support rod assembly 144 touches an obstacle such as the wire rod 15, the L-shaped movable support rod 1441 can rotate to prevent the movable support rod assembly 144 from being damaged due to its inability to deform when it touches an obstacle such as the wire rod 15, and at the same time prevent the detection line 141 from losing its function when the end of the movable support rod assembly 144 touches an obstacle such as the wire rod 15. At this time, the rotation of the L-shaped movable support rod 1441 can drive the second control switch to trigger a signal, and the control unit of the screening vehicle 1 can control the revolving throwing belt 11 to move in the opposite direction of obstacles such as the wire rod 15 to avoid obstacles such as the wire rod 15, so that the revolving throwing belt 11 can smoothly realize the automatic obstacle avoidance function, thereby improving the safety and reliability of the use of the revolving throwing belt 11;

[0047] like Figure 4 As shown in the structure, a fixed hinge support 1444 corresponding to the L-shaped movable support rod 1441 is fixedly installed at the end of the conveying bracket 12; the bent portion of the L-shaped movable support rod 1441 is hinged to the fixed hinge support 1444, and the bent portion of the L-shaped movable support rod 1441 can be hinged to the fixed hinge support 1444 through a pin shaft 1445 or a hinge.

[0048] In order to ensure that the detection line 141 can be stably supported around the outer end of the delivery stent 12, as shown in FIG. Figure 3 and Figure 4 As shown in the structure, a first pulley 1446 is provided at the other end of the L-shaped movable support rod 1441, and the slide groove of the first pulley 1446 forms a wire groove; the fixed support member includes a support rod 143 and a second pulley 146 installed on the top of the support rod 143, and the slide groove of the second pulley 146 forms a wire groove.

[0049] By arranging a first pulley 1446 at the end of the L-shaped movable support rod 1441 and a second pulley 146 at the end of the support rod 143 of the fixed support member, the sliding grooves of the first pulley 1446 and the second pulley 146 form a line groove for the contact line, and the contact line is guided and limited by the sliding grooves of the pulleys, so that the contact line can be stably and reliably tensioned on the outer peripheral side of the conveying bracket 12, and can trigger the control switch when the detection line 141 touches obstacles such as the wire pole 15, so that the conveying bracket 12 automatically avoids obstacles such as the wire pole 15 through the control of the control unit.

[0050] When the above-mentioned screening vehicle 1 is working, when the rotating throwing belt 11 of the screening vehicle 1 does not touch obstacles such as the wire pole 15, the first control switch 142 and the second control switch 1442 remain in a closed state; when the first pulley 1446 at the end of the detection line 141 or the L-shaped movable support rod 1441 touches obstacles such as the wire pole 15, the first control switch 142 will be triggered to turn on by the detection line 141, and the second control switch 1442 will be triggered to turn on by the L-shaped movable support rod 1441. The first control switch 142 or the second control switch 1442 transmits a signal to the control unit of the screening vehicle 1. After receiving the obstacle avoidance signal, the control unit will control the conveying bracket 12 to rotate in the opposite direction of the current rotation direction, so that the conveying bracket avoids obstacles such as the wire pole 15.

[0051] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0052] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A rotary throwing belt, characterized in that: The invention comprises a conveying support, a rotary conveyor belt mounted on the conveying support so as to be relatively movable, and an automatic obstacle avoidance device for controlling the conveying support to automatically avoid obstacles; wherein the conveying support is mounted on the top of the body of the cleaning and screening vehicle, and the conveying support can move along the length direction of the body and can also rotate relative to the body; Along the width direction of the rotary conveyor belt, the conveying support has a first side and a second side; The automatic obstacle avoidance device includes a detection line and a first control switch; the first control switch is installed on the first side of the conveying bracket; One end of the detection line is fixedly connected to the second side of the conveying bracket, and the other end extends around the outer circumference of the conveying bracket and is tensionedly connected to the first control switch. The detection line is spaced apart from the conveying bracket and is used to control the opening and closing of the first control switch. The detection line is a touch line. The automatic obstacle avoidance device also includes a fixed support and a movable support rod assembly; A fixed support is fixedly installed on the first side and the second side of the conveying bracket, and the fixed support extends along the width direction of the rotary conveyor belt; Two movable support rod assemblies capable of swinging are installed at the outer end of the conveying bracket, and the movable support rod assemblies extend toward the outer side of the conveying bracket; A wire groove for accommodating the detection line is provided at one end of the fixed support member away from the conveying bracket and at one end of the movable support rod assembly away from the conveying bracket, and the wire groove is used to guide the detection line; Obstacles such as poles are detected through the detection line. When the detection line touches the obstacle, the touch line contacts the pole to trigger the first control switch to turn on, and then the revolving throwing belt is controlled to rotate in the opposite direction to avoid the obstacle, thereby realizing automatic obstacle avoidance of the revolving throwing belt.

2. The rotary throwing belt according to claim 1, characterized in that: The automatic obstacle avoidance device also includes a fixing ring installed on the second side of the conveying bracket; one end of the detection line is connected to the conveying bracket through the fixing ring.

3. The rotary throwing belt according to claim 2, characterized in that: The two movable support rod assemblies are symmetrically arranged; The movable support rod assembly includes an L-shaped movable support rod, a second control switch and a spring; The second control switch is installed on one side of the conveying bracket; The bent portion of the L-shaped movable support rod is hinged to the end of the conveying bracket, one end of which is in contact with the trigger end of the second control switch, and the other end of which is provided with the wire groove; The spring is located between the bent portion of the L-shaped movable support rod and the second control switch, and connects the conveying bracket and the L-shaped movable support rod, and is used to control the resetting of the L-shaped movable support rod.

4. The rotary throwing belt according to claim 3, characterized in that: A fixed hinge support corresponding to the L-shaped movable support rod is fixedly installed at the end of the conveying bracket; The bent portion of the L-shaped movable support rod is hinged to the fixed hinge support.

5. The rotary throwing belt according to claim 4, characterized in that: A first pulley is arranged at the other end of the L-shaped movable support rod, and a sliding groove of the first pulley forms the wire groove.

6. The rotary throwing belt according to claim 1, characterized in that: The fixed support member includes a support rod and a second pulley installed on the top of the support rod, and a sliding groove of the second pulley forms the wire groove.

7. The rotary throwing belt according to claim 3, characterized in that: The first control switch and the second control switch are both limit switches; When the first control switch or the second control switch is turned on, the conveying support rotates in the opposite direction to the current rotation direction.

8. A cleaning vehicle, comprising a control unit, characterized in that: It also includes the rotating throwing belt as described in any one of claims 1 to 7, wherein the first control switch of the rotating throwing belt is connected to the control unit signal.

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