Anti-collision protection device of arm support of material taking machine and material taking machine
By installing anti-collision protection devices on the material withdrawal machine arm frame, the cooperation of flexible parts and elastic parts and combined with position detection, the automatic anti-collision and automatic reset of the material withdrawal machine arm frame is achieved, solving the problem of collision between the material withdrawal machine arm frame and the coal pile, and improving safety and reliability.
Patent Information
- Application Number
- CN202421824844.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing material picking machine arm frame is prone to collision with the coal pile during the material picking process, resulting in machine damage accidents, and the traditional anti-collision rope has problems such as loosening, breaking and inconvenient resetting.
Anti-collision protection device is adopted, including the base body, slider, flexible parts and elastic parts. The flexible parts deform and pull the slider when they collide. The elastic parts provide elastic force to reset the slider. Combined with the position detection device, the material picker shutdown is controlled to avoid collision and automatic reset.
Effectively prevent the collision between the arm frame and the material stack, automatically stop the machine to protect the equipment, avoid manual reset, and improve safety and reliability.
Smart Images
Figure CN223213379U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of reclaimers, and in particular to an anti-collision protection device for a reclaimer boom and a reclaimer. Background Art
[0002] In the related art, when the reclaimer is reclaiming materials from the coal pile, the arm of the reclaimer will swing. During this process, the arm may collide with the coal pile, etc., causing machine damage accidents. The traditional protection device for protecting the reclaimer arm is an anti-collision pull rope installed on both sides of the arm, which triggers the pull rope switch to play a protective role. However, during use, the anti-collision pull rope has some risks. For example, first, when the anti-collision pull rope is too loose, the arm will not be able to trigger the pull rope switch immediately when it hits the coal pile, which will cause great damage to the equipment; second, the pull rope is not easy to be found when it is broken; third, the pull rope switch needs to be manually reset after being triggered, which brings great inconvenience to production. Utility Model Content
[0003] The purpose of the present disclosure is to provide an anti-collision protection device for a reclaimer boom and a reclaimer, so as to at least partially solve the technical problems existing in the prior art.
[0004] In order to achieve the above-mentioned objectives, the present disclosure provides, in the first aspect, an anti-collision protection device for a grabber arm, which is suitable for being installed on the arm of the grabber, and the anti-collision protection device includes a base, a slider, a flexible member, an elastic member and a first position detection device; the base is suitable for being fixed on a side of the arm close to the material pile; the slider is slidably connected to the base, and the slider has a first end and a second end in the sliding direction; one end of the flexible member is fixed to the first end of the slider, and the other end extends in a direction away from the slider and is suitable for being fixed to the arm, and the flexible member is configured to flexibly deform when the flexible member collides with the material pile to pull the slider from an initial position to a collision position, and the flexible member and the material pile are An avoidance space is enclosed between the arms, and the avoidance space is suitable for avoiding the deformation of the flexible member when the flexible member collides with the material pile; one end of the elastic member is fixed to the second end of the slider, and the other end extends in a direction away from the slider and is suitable for being fixed on the arm after being stretched, and the elastic member is configured to provide the slider with an elastic force to slide in the direction of the elastic member and to keep the slider in an initial position; the first position detection device is fixed relatively to the base, and is used to be electrically connected to the controller of the material reclaimer, and the first position detection device is used to detect the position of the slider, and when the first position detection device detects that the slider leaves the initial position, the controller controls the material reclaimer to stop.
[0005] Optionally, the anti-collision protection device also includes a second position detection device, which is spaced apart from the first position detection device along the sliding direction and fixed relative to the base. The distance between the second position detection device and the flexible part is greater than the distance between the first position detection device and the flexible part. The second position detection device is used to be electrically connected to the alarm on the material reclaimer.
[0006] Optionally, a stopper is provided on the base, and the stopper is located on the sliding path of the slider. When the slider is in contact with the stopper, the slider is located within the detection range of the second position detection device.
[0007] Optionally, the first position detection device and the second position detection device are both fixed on the base.
[0008] Optionally, the first position detection device and the second position detection device are both proximity switches.
[0009] Optionally, a sliding groove is provided on the base, and the sliding block is slidably provided in the sliding groove.
[0010] Optionally, a cover body is detachably connected to the base body, and the cover body is arranged outside the notch of the slide groove.
[0011] Optionally, the elastic member is a spring, and the anti-collision protection device further includes a sheath, which is arranged outside the spring and fixedly connected to the base.
[0012] In a second aspect, the present disclosure provides a reclaimer, which includes a body, an arm, and the above-mentioned anti-collision protection device. The proximal end of the arm is rotatably connected to the body, and the anti-collision protection device is fixed to the arm.
[0013] Optionally, the anti-collision protection device is provided on both sides of the arm.
[0014] According to the above technical solution, after the anti-collision protection device is installed on the boom, the base is fixed to the side of the boom near the material pile, the flexible member and the elastic member are both fixed to the boom, and the first position detection device is fixed relative to the boom. When the boom and the anti-collision protection device are not colliding, the elastic member is in a stretched state. Under the elastic force of the elastic member, the flexible member is in a straight state, and the slider is in its initial position. When the boom swings toward the material pile, the flexible member collides with the material pile before the boom. Because the flexible member is in a straight state, it immediately deforms into the avoidance space after colliding with the material pile. During this process, the flexible member pulls the slider in the direction of the flexible member (the direction of the flexible member refers to the direction from the second end of the slider toward the first end), further stretching the elastic member. After the first position detection device detects that the slider has left the initial position, it sends a stop signal to the controller. Upon receiving this signal, the controller controls the reclaimer to stop swinging before the boom collides with the material pile. When the boom rotates away from the material pile, the slider returns to its initial position under the elastic force of the elastic member, and the flexible member is straightened again, achieving an automatic reset effect, eliminating the need for manual reset. If the flexible member breaks, or if it detaches from the slider or the boom, the slider, under the action of the elastic member, moves in the direction of the elastic member (the direction of the elastic member refers to the direction from the first end of the slider to the second end), causing the slider to leave its initial position. After the first position detection device detects that the slider has left its initial position, it sends a stop signal to the controller. Upon receiving this signal, the controller controls the reclaimer to stop, causing the boom to stop swinging.
[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0017] Figure 1 is a schematic diagram of the three-dimensional structure of an anti-collision protection device provided by an exemplary embodiment of the present disclosure;
[0018] Figure 2 is a top view of an anti-collision protection device provided by an exemplary embodiment of the present disclosure, wherein the cover is not shown;
[0019] Figure 3 is a schematic diagram of the three-dimensional structure of an anti-collision protection device provided by an exemplary embodiment of the present disclosure, wherein the sheath is not shown;
[0020] Figure 4is a schematic diagram of a state of an anti-collision protection device of a slider provided by an exemplary embodiment of the present disclosure when the slider is in an initial position;
[0021] Figure 5 3. This is a schematic diagram of the state of the anti-collision protection device provided by an exemplary embodiment of the present disclosure when the flexible member collides with a pile of materials;
[0022] Figure 6 3 is a schematic diagram of the state of the anti-collision protection device provided by an exemplary embodiment of the present disclosure after the flexible part of the anti-collision protection device is broken or detached.
[0023] Description of Reference Numerals
[0024] 10-arm; 20-machine body; 30-material pile; 40-avoidance space;
[0025] 100 - base; 110 - slide groove; 120 - first through hole; 130 - second through hole; 140 - stopper; 200 - slider; 300 - flexible member; 400 - elastic member; 500 - first position detection device; 600 - second position detection device; 700 - cover; 800 - sheath. DETAILED DESCRIPTION
[0026] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.
[0027] In the description of this disclosure, it should be understood that the terms "inside" and "outside" refer to the inside and outside of the corresponding structural outline. In addition, the terms "first" and "second" are only used to distinguish one element from another and do not have order or importance.
[0028] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed," "connected," "connected," and "installed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections via an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.
[0029] In a first aspect, the present disclosure provides an anti-collision protection device for a reclaimer boom. After being installed on the boom of the reclaimer, the anti-collision protection device can prevent the boom from colliding with a pile of materials.
[0030] like Figures 1 to 6As shown, the anti-collision protection device of the reclaimer boom includes a base 100, a slider 200, a flexible member 300, an elastic member 400 and a first position detection device 500. The base 100 is suitable for being fixed on the side of the boom 10 close to the material pile 30; the slider 200 is slidably connected to the base 100, and the slider 200 has a first end and a second end in the sliding direction; one end of the flexible member 300 is fixed to the first end of the slider 200, and the other end extends in a direction away from the slider 200 and is suitable for being fixed to the boom 10. The flexible member 300 is configured to flexibly deform when the flexible member 300 collides with the material pile 30 to pull the slider 200 from the initial position to the collision position. An avoidance space is enclosed between the flexible member 300 and the boom 10, and the avoidance space is suitable for the flexible member 300 and the material pile 30 to be moved. Avoid deformation of the flexible member 300 during collision; one end of the elastic member 400 is fixed to the second end of the slider 200, and the other end extends in a direction away from the slider 200 and is suitable for being fixed on the arm 10 after being stretched, and the elastic member 400 is configured to provide an elastic force to the slider 200 to slide in the direction of the elastic member 400; and a first position detection device 500 is used to be electrically connected to the controller of the material reclaimer, and the first position detection device 500 is used to detect the position of the slider 200. When the first position detection device 500 detects that the slider 200 leaves the initial position or reaches the broken position, the controller controls the material reclaimer to stop.
[0031] Through the above solution, after the anti-collision protection device is installed on the boom 10, the base 100 is fixed to the side of the boom 10 close to the pile 30, the flexible member 300 and the elastic member 400 are fixed to the boom 10, and the first position detection device 500 is fixed relative to the boom 10. Figure 4 As shown, when the machine arm and the anti-collision protection device do not collide, the elastic member 400 is in a stretched state, and under the elastic force of the elastic member 400, the flexible member 300 is in a straightened state, and the slider 200 is in the initial position. Figure 5As shown, when the boom 10 swings toward the direction of the material pile 30, the flexible member 300 will collide with the material pile 30 before the boom 10. Since the flexible member 300 is in a stretched state, the flexible member 300 will immediately deform into the avoidance space after colliding with the material pile 30. During this process, the flexible member 300 pulls the slider 200 in the direction of the flexible member 300 (the direction of the flexible member 300 refers to the direction of the second end of the slider 200 toward the first end), so that the elastic member 400 is further stretched. After the first position detection device 500 detects that the slider 200 has left the initial position, it sends a stop signal to the controller. After receiving the signal, the controller controls the material reclaimer to stop, so that the boom 10 stops swinging before colliding with the material pile 30. After the boom 10 rotates in the direction away from the material pile 30, the slider 200 can return to the initial position under the elastic force of the elastic member 400, and the flexible member 300 is in a stretched state again, achieving the effect of automatic reset without the need for manual reset. As shown Figure 6 As shown, when the flexible part 300 breaks or the flexible part 300 is separated from the slider 200 or the flexible part 300 is separated from the arm 10, the slider 200 moves toward the direction of the elastic part 400 (the direction of the elastic part 400 refers to the direction of the first end of the slider 200 toward the second end) under the action of the elastic part 400, so that the slider 200 leaves the initial position. After the first position detection device 500 detects that the slider 200 leaves the initial position, it sends a stop signal to the controller. After receiving the signal, the controller controls the material reclaimer to stop, so that the arm 10 stops swinging.
[0032] It should be noted that the fixing methods of the base 100 and the arm 10 include, but are not limited to, bolt connection achieved through bolts and bolt holes, direct welding through a welding machine, and snap connection achieved through male and female buckles. The slider 200 leaves the initial position by either moving toward the flexible member 300 under the action of the flexible member 300 and then leaving the initial position, or by moving toward the elastic member 400 under the action of the elastic member 400 and then leaving the initial position after the flexible member 300 breaks or the flexible member 300 is separated from the slider 200 or the flexible member 300 is separated from the arm 10. The first position detection device 500 is relatively fixed to the base 100, which can be achieved by fixing the first position detection device 500 to the arm 10 or by directly fixing the first position detection device 500 to the base 100.
[0033] like Figure 1 and Figure 2 As shown, optionally, the first position detection device 500 can be fixed on the base 100, so that the first position detection device 500 can be pre-installed on the base 100, which facilitates the anti-collision protection device to be quickly installed on or disassembled from the boom 10.
[0034] In some optional embodiments, the detection device includes a first proximity switch, the first proximity switch being fixed relative to the base 100, with a detection end of the first proximity switch being close to and facing the initial position. When the slider 200 is in the initial position, the first proximity switch can detect the slider 200, and when the slider 200 leaves the initial position, the first proximity switch cannot detect the slider 200.
[0035] Of course, in other embodiments, the first position detection device 500 may be a grating switch.
[0036] like Figure 1 and Figure 2 As shown, in some optional embodiments, the anti-collision protection device also includes a second position detection device 600, the second position detection device 600 and the first position detection device 500 are spaced apart along the sliding direction and fixed relative to the base 100, the distance between the second position detection device 600 and the flexible part 300 is greater than the distance between the first position detection device 500 and the flexible part 300, and the second position detection device 600 is used to be electrically connected to the alarm on the material reclaimer.
[0037] When the slider 200 is in the initial position, the second position detection device 600 does not detect the slider 200, and the alarm is not triggered at this time; when the flexible part 300 breaks or the flexible part 300 is detached from the slider 200 or the flexible part 300 is detached from the arm 10, the slider 200 moves toward the direction of the elastic part 400 under the elastic force of the elastic part 400, and is able to reach the position of the second position detection device 600. The second position detection device 600 detects the slider 200. At this time, the alarm sounds an alarm to remind the operator that the flexible part 300 connected to the arm 10 is broken or the flexible part 300 is detached from the slider 200 or the flexible part 300 is detached from the arm 10, so that the operator can know that the slider 200 cannot be reset. The operator can repair the anti-collision protection device to reconnect the flexible part 300 to the slider 200 and the arm 10.
[0038] It should be noted that the second position detection device 600 is relatively fixed to the base 100 , which can be achieved by fixing the second position detection device 600 on the arm 10 or by directly fixing the second position detection device 600 on the base 100 .
[0039] Optionally, the second position detection device 600 can be fixed on the base 100 , so that the second position detection device 600 can be pre-installed on the base 100 , which facilitates the rapid installation or removal of the anti-collision protection device on the boom 10 .
[0040] In some optional embodiments, the second position detection device 600 includes a second proximity switch. Of course, in other embodiments, the second position detection device 600 may also be a grating switch.
[0041] In order to improve the success rate of the second position detection device 600, as Figure 3 As shown, in some optional embodiments, a stopper 140 is provided on the base 100. The stopper 140 is located on the sliding path of the slider 200. When the slider 200 is in contact with the stopper 140, the slider 200 is located within the detection range of the second position detection device 600. After the stopper 140 is provided, after the flexible member 300 breaks, or the flexible member 300 is separated from the slider 200, or the flexible member 300 is separated from the arm 10, the slider 200 can be moved to contact with the stopper 140 under the elastic force of the elastic member 400, thereby causing the slider 200 to remain within the detection range of the second position detection device 600, thereby improving the success rate of the second position detection device 600.
[0042] Regarding the sliding structure of the slider 200 on the base 100 , in some optional embodiments, a sliding groove 110 is provided on the base 100 , and the slider 200 is slidably provided in the sliding groove 110 to achieve a sliding connection between the slider 200 and the base 100 .
[0043] Of course, in some other embodiments, a sliding rod can be provided on the base 100, and a sliding hole can be opened on the slider 200, so that the slider 200 is sleeved on the outside of the sliding rod, and the sliding connection between the slider 200 and the base 100 is realized by the cooperation of the sliding rod and the sliding hole.
[0044] like Figure 1 As shown, in some optional embodiments, the side wall of the chute 110 is provided with a first through-hole 120, the first through-hole 120 is located in the initial position, and the first position detection device 500 can be installed in the first mounting hole. Of course, when the anti-collision protection device also includes a second position detection device 600, the side wall of the chute 110 is further provided with a second through-hole 130, the second through-hole 130 is spaced apart from the first through-hole 120, and the second position detection device 600 can be installed in the second mounting hole.
[0045] like Figure 3 As shown, in some optional embodiments, an anti-slip structure is provided on the first slide groove 110 and the slider 200 to prevent the slider 200 from slipping out of the groove of the first slide groove 110. For example, the first slide groove 110 is set as a T-slot, and the slider 200 is set as a T-block, and the anti-slip structure is formed by the cooperation of the T-slot and the T-block; or, the first slide groove 110 is set as a dovetail groove, and the slider 200 is set as a dovetail block adapted to the dovetail groove, and the anti-slip structure is formed by the cooperation of the dovetail groove and the dovetail block.
[0046] like Figure 1 As shown, in some optional embodiments, a cover 700 is detachably connected to the base 100, and the cover 700 is arranged outside the slot of the chute 110. The provision of the cover 700 can prevent foreign matter such as coal dust from entering the chute 110 and affecting the sliding of the slider 200 in the chute 110.
[0047] like Figures 1 to 3 As shown, in some optional embodiments, the elastic member 400 is a spring, and the anti-collision protection device further includes a sheath 800, which is sleeved over the spring and fixedly connected to the base 100. Using a spring as the elastic member 400 can increase the elastic force of the elastic member 400, and providing the sheath 800 outside the spring can limit the deformation direction of the spring, causing the spring to deform along the axial direction.
[0048] Of course, in other embodiments, the elastic member 400 may also be a spring sheet or a rubber band that can be stretched and elastically deformed.
[0049] In some optional embodiments, the flexible member 300 can be a drawstring. Of course, in other embodiments, the flexible member 300 can also be a chain, a cable, etc.
[0050] Based on the above-mentioned anti-collision protection device, the present disclosure provides a reclaimer in a second aspect, comprising a body 20, an arm 10, and the above-mentioned anti-collision protection device. The proximal end of the arm 10 is rotatably connected to the body 20, and the anti-collision protection device is fixed to the arm 10. The reclaimer has all the beneficial effects of the above-mentioned anti-collision protection device.
[0051] It should be noted that the controller of the reclaimer is usually installed on the fuselage 20. The controller can be a controller that controls the movement of the boom alone, or it can be a master controller that controls the entire reclaimer. The first position detection device 500 and the second position detection device 600 can both be electrically connected to the controller.
[0052] In some optional embodiments, the elastic member 400 is fixed at the proximal end of the arm 10 , and the flexible member 300 is fixed at the distal end of the arm 10 , so that the flexible member 300 can cover one side of the distal end of the arm 10 , thereby improving the protective effect of the arm 10 .
[0053] In some optional embodiments, anti-collision protection devices are provided on opposite sides of the boom 10 to improve the protection effect of the boom 10.
[0054] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.
[0055] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0056] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. A collision protection device for a reclaimer boom, suitable for installation on the boom of a reclaimer, characterized in that: include: A base body, adapted to be fixed to a side of the arm frame close to the pile; a slider, slidably connected to the base, the slider having a first end and a second end in a sliding direction; a flexible member, one end of which is fixed to the first end of the slider, and the other end of which extends in a direction away from the slider and is suitable for being fixed to the arm, wherein the flexible member is configured to flexibly deform when the flexible member collides with the material pile so as to pull the slider from an initial position to a collision position, and an avoidance space is enclosed between the flexible member and the arm, wherein the avoidance space is suitable for avoiding deformation of the flexible member when the flexible member collides with the material pile; an elastic member, one end of which is fixed to the second end of the slider, and the other end of which extends in a direction away from the slider and is adapted to be fixed to the arm support after being stretched, the elastic member being configured to provide an elastic force to the slider to slide in the direction of the elastic member and to keep the slider in an initial position; as well as, The first position detection device is fixed relative to the base and is used to be electrically connected to the controller of the material reclaimer. The first position detection device is used to detect the position of the slider. When the first position detection device detects that the slider leaves the initial position, the controller controls the material reclaimer to stop.
2. The anti-collision protection device for the reclaimer boom according to claim 1, characterized in that: The anti-collision protection device also includes a second position detection device, which is spaced apart from the first position detection device along the sliding direction and fixed relative to the base. The distance between the second position detection device and the flexible part is greater than the distance between the first position detection device and the flexible part. The second position detection device is used to be electrically connected to the alarm on the material reclaimer.
3. The anti-collision protection device for the reclaimer boom according to claim 2, characterized in that: A stopper is provided on the base, and the stopper is located on the sliding path of the slider. When the slider is in contact with the stopper, the slider is located within the detection range of the second position detection device.
4. The anti-collision protection device for the boom of a reclaimer according to claim 3, characterized in that: The first position detection device and the second position detection device are both fixed on the base.
5. The anti-collision protection device for the boom of a reclaimer according to claim 3, characterized in that: The first position detection device and the second position detection device are both proximity switches.
6. The anti-collision protection device for the boom of a reclaimer according to any one of claims 1 to 5, characterized in that: A sliding groove is provided on the base, and the sliding block is slidably arranged in the sliding groove.
7. The anti-collision protection device for the boom of a reclaimer according to claim 6, characterized in that: A cover body is detachably connected to the base body, and the cover body is arranged outside the notch of the slide groove.
8. The anti-collision protection device for a reclaimer boom according to any one of claims 1 to 5, characterized in that: The elastic member is a spring, and the anti-collision protection device further comprises a sheath, which is arranged outside the spring and fixedly connected to the base.
9. A reclaimer, characterized in that: It comprises a fuselage, an arm and the anti-collision protection device according to any one of claims 1 to 8, wherein the proximal end of the arm is rotatably connected to the fuselage, and the anti-collision protection device is fixed on the arm.
10. The reclaimer according to claim 9, characterized in that: The anti-collision protection device is provided on both sides of the arm.