Terminal stop mechanism of bucket-wheel stacker-reclaimer

Abstract

The utility model relates to the technical field of backstops of bucket-wheel stackers and reclaimers, and discloses a terminal backstop mechanism of a bucket-wheel stacker and reclaimer, which comprises a terminal backstop device, a support plate is fixed on the end side of the terminal backstop device, a plurality of reinforcing steel bars are fixed in the terminal backstop device, a notch is arranged on the side wall of the terminal backstop device, and the support plate is fixed on the support plate. A notch is formed in the upper portion of the bucket-wheel stacker-reclaimer, a buffer plate is movably installed in the notch, a buffer pad is bonded to the side wall of the buffer plate, and the bucket-wheel stacker-reclaimer further comprises a buffer assembly which can stop and buffer the bucket-wheel stacker-reclaimer conveniently when the bucket-wheel stacker-reclaimer walks to the limit distance. The buffering assembly provides buffering force to counteract impact force so as to slow down the speed of the bucket-wheel stacker-reclaimer, in the process, the bucket-wheel stacker-reclaimer is prevented from being damaged due to the fact that the bucket-wheel stacker-reclaimer directly collides with rigid objects, the service life of the bucket-wheel stacker-reclaimer is prolonged, vibration and noise generated by collision are reduced through the buffering effect, and the service life of the bucket-wheel stacker-reclaimer is prolonged. And the influence on the surrounding environment and equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of stop technology for bucket wheel stacker-reclaimers, specifically to a terminal stop mechanism for bucket wheel stacker-reclaimers. Background Technology

[0002] In thermal power plants, bucket wheel stacker-reclaimers are crucial equipment for coal stacking and reclaiming operations in coal yards. During the initial design phase, to reduce engineering investment costs and ensure equipment safety, sufficient safety distances are reserved for surrounding buildings and equipment. Simultaneously, the required tracks and other supporting facilities are simplified. This results in a shorter travel distance for the bucket wheel stacker-reclaimer, necessitating a stopping device after it has traveled the required effective distance.

[0003] In existing bucket wheel stacker-reclaimer travel end stop technology, bolts are used for fixing. During long-term use, the impact force generated by the bucket wheel stacker-reclaimer and environmental factors can easily cause loosening or displacement. Furthermore, when the bucket wheel stacker-reclaimer travels to its limit distance and collides with the end stop device, there is a lack of effective buffering measures. This causes the bucket wheel stacker-reclaimer to collide directly with the end stop device, resulting in the stop device being subjected to a large impact force. This can easily damage key components of the equipment and shorten the service life of the bucket wheel stacker-reclaimer.

[0004] Therefore, we propose a terminal stop mechanism for a bucket wheel stacker-reclaimer to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a terminal stop mechanism for a bucket wheel stacker-reclaimer, so as to solve the problems mentioned in the background art, such as the terminal stop being prone to loosening and displacement after long-term use, and the lack of buffering measures.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A bucket wheel stacker-reclaimer terminal stop mechanism includes a terminal stop, a support plate fixed to the end side of the terminal stop, multiple reinforcing steel bars fixed inside the terminal stop, a notch opened on the side wall of the terminal stop, a buffer plate movably installed in the notch, and a buffer pad adhered to the side wall of the buffer plate.

[0008] Also includes:

[0009] A buffer assembly is provided to stop and buffer the bucket wheel stacker-reclaimer when it travels to its limit distance.

[0010] Preferably, the support plate is internally threaded with multiple bolts, and the connection between the support plate and the bolts is a hollow thread.

[0011] Preferably, the buffer component includes:

[0012] A fixing rod is fixed to opposite sides of the inner sidewall of the recess. A frustum is fixed to the end of the fixing rod. A spring is sleeved on the outside of the fixing rod. A slider is slidably sleeved on the fixing rod. Connecting rods are hinged to the two sidewalls of the slider. A support block is hinged to the end of the connecting rod.

[0013] Preferably, the two ends of the spring are fixedly connected to the side wall of the recess in the end stop and the side wall of the slider, respectively; the support block is fixedly connected to the buffer plate; and the support block and the connecting rod are symmetrically distributed about the slider.

[0014] Preferably, the multiple reinforcing bars are arranged in a linear array, and the terminal stop has mounting holes to facilitate the installation of the reinforcing bars.

[0015] Preferably, the cushioning pad is made of rubber, and the surface of the cushioning pad is provided with multiple anti-slip protrusions.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model uses a buffer plate to transmit the impact force to the slider through the support block and connecting rod, which in turn compresses the spring sleeved on the outside of the fixed rod. The spring absorbs the kinetic energy brought by the impact of the bucket wheel stacker-reclaimer, providing sufficient buffering force to offset the impact force and slow down the speed of the bucket wheel stacker-reclaimer until its kinetic energy is completely absorbed and it stops. This process not only avoids equipment damage caused by the bucket wheel stacker-reclaimer directly impacting rigid objects and extends the service life of the bucket wheel stacker-reclaimer, but also reduces the vibration and noise generated by the impact through the buffering effect, reducing the impact on the surrounding environment and equipment.

[0018] 2. This utility model increases the rigidity of the terminal stop by pre-embedding reinforcing steel bars, and the installation of the bolt support plate ensures the stable installation and use of the terminal stop. This setting not only ensures the accuracy of the installation position of the terminal stop and can play an effective stopping role when the bucket wheel stacker-reclaimer reaches the limit distance, but also enhances the stability of the terminal stop installation by using reinforcing steel bars and bolt connections, making it less prone to loosening or displacement during long-term use and ensuring the reliability of use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the terminal stop of this utility model.

[0021] Figure 3This is a schematic diagram of the buffer component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the reinforced steel structure of this utility model.

[0023] In the diagram: 1. Terminal stop; 2. Support plate; 3. Bolt; 4. Reinforcing steel bar; 5. Notch; 6. Buffer plate; 61. Fixed rod; 62. Frustum; 63. Slider; 64. Spring; 65. Connecting rod; 66. Support block; 7. Buffer pad. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figures 1-4A terminal stop mechanism for a bucket wheel stacker-reclaimer includes a terminal stop 1. A support plate 2 is fixed to the end side of the terminal stop 1. The presence of the support plate 2 increases the contact area between the terminal stop 1 and the mounting surface, making the fixation more stable. Multiple bolts 3 are internally threaded onto the support plate 2. The connection between the support plate 2 and the bolts 3 is a hollow thread. This design can ensure the connection strength while making it easier to screw the bolts 3 in and out, thereby achieving a stable installation of the terminal stop 1 and keeping it in a fixed position during the operation of the bucket wheel stacker-reclaimer, thus playing a basic role in stopping the load. The terminal stop 1 has multiple reinforcing steel bars 4 fixed inside, arranged in a linear array. This linear array evenly distributes the impact force borne by the terminal stop 1, preventing excessive local stress that could lead to structural damage. The terminal stop 1 has mounting holes for the reinforcing steel bars 4, which are installed through these holes. The use of reinforcing steel bars 4 significantly enhances the overall structural strength of the terminal stop 1, enabling it to withstand the enormous impact force when the bucket wheel stacker-reclaimer reaches the terminal, preventing damage or deformation and providing structural support for the entire stopping device. The side wall of the terminal stop 1 has a recess 5, within which a buffer plate 6 is movably installed. A buffer pad 7, made of rubber, is bonded to the side wall of the buffer plate 6. The rubber material of the buffer pad 7 increases the aging resistance and elastic recovery of the terminal stop 1, allowing it to maintain good cushioning performance even after multiple impacts. The surface of the buffer pad 7 has multiple anti-slip protrusions. The anti-slip protrusions improve the stability of the buffer pad 7 when it comes into contact with the bucket wheel stacker-reclaimer, preventing the bucket wheel stacker-reclaimer from slipping and causing buffer failure or additional damage to the stop device at the moment of impact.

[0026] It should be noted that before using the terminal stop 1, a slide rail needs to be installed on the ground at the location where the bucket wheel stacker-reclaimer is to be installed. The slide rail facilitates the movement of the bucket wheel stacker-reclaimer. Then, using the length of the power cable of the bucket wheel stacker-reclaimer, the distance from the edge of the coal pile, and the minimum safe distance from surrounding structures, the effective distance that the bucket wheel stacker-reclaimer's traveling device can actually extend is calculated. Next, the left and right terminal stop 1s are marked and positioned, and then the terminal stop 1s are installed. During installation, cavities are symmetrically opened on the ground at both ends of the effective distance at the measured location to accommodate the installation of the terminal stop 1s. Reinforcing steel bars 4 are pre-embedded in the cavities, and the terminal stop 1s are installed thereto to perform the stopping operation.

[0027] Example 2: This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 2-3A bucket wheel stacker-reclaimer terminal stop mechanism also includes a buffer assembly. The buffer assembly facilitates stopping and buffering when the bucket wheel stacker-reclaimer travels to its limit distance. The buffer assembly includes a fixed rod 61, which is fixed on opposite sides of the inner wall of the recess 5. It supports and guides the sliding of the slider 63. A frustum 62 is fixed at the end of the fixed rod 61 to prevent the slider 63 from sliding out of the end of the fixed rod 61 during the sliding process. This serves as a limit and ensures the normal operation of the buffer assembly. A spring 64 is sleeved on the outside of the fixed rod 61. The spring 64 ensures that sufficient buffering force is provided when the bucket wheel stacker-reclaimer is impacted, while preventing secondary damage to the bucket wheel stacker-reclaimer due to excessive rebound force of the spring 64. This allows the buffer plate 6 to smoothly push the slider 63 to compress the spring 64 when impacted, achieving an effective buffering effect. A slider 63 is slidably sleeved on the fixed rod 61. Connecting rods 65 are hinged to the two side walls of the slider 63, and a support block 66 is hinged to the end of the connecting rod 65. This design allows force to be effectively transmitted between the slider 63, the connecting rods 65, and the support block 66. When the slider 63 slides on the fixed rod 61, the rotation of the connecting rods 65 pushes the support block 66, thereby driving the buffer plate 6 to perform a buffering action.

[0028] The two ends of the spring 64 are fixedly connected to the side wall of the recess 5 in the end stop 1 and the side wall of the slider 63, respectively. The support block 66 is fixedly connected to the buffer plate 6. The support block 66 and the connecting rod 65 are symmetrically distributed about the slider 63. The symmetrical arrangement ensures the uniformity of force transmission and avoids damage to the buffer assembly or poor buffering effect caused by uneven force.

[0029] Working principle:

[0030] First, the effective distance is calculated using the length of the power cable of the bucket wheel stacker-reclaimer, the distance from the edge of the coal pile, and the minimum safe distance from surrounding structures. At the effective distance, cavities and bolt holes are symmetrically opened at both ends of the ground to accommodate the installation of the terminal stopper 1. Reinforcing steel bars 4 are pre-embedded in the cavities. The terminal stopper 1 is then inserted onto the reinforcing steel bars 4. At this point, the support plate 2 is aligned with the bolt holes on the ground, and through bolts 3 are used to connect and fix it, ensuring stable installation of the terminal stopper 1 for use. During operation, when the bucket wheel stacker-reclaimer moves to the effective distance, it will impact the buffer plate 6. When the bucket wheel stacker-reclaimer reaches its limit distance, it will first... The impact will hit the buffer plate 6 connected to the buffer assembly. After the impact, the buffer plate 6 transmits the impact force to the slider 63 through the support block 66 and the connecting rod 65. Under the action of the force, the slider 63 slides on the fixed rod 61. The spring 64 sleeved on the outside of the fixed rod 61 is compressed by the force. The spring 64 absorbs the kinetic energy brought by the impact of the bucket wheel stacker-reclaimer and converts it into its own elastic properties, providing sufficient buffer force to offset the impact force of the bucket wheel stacker-reclaimer and slow down the speed of the bucket wheel stacker-reclaimer. When the kinetic energy of the bucket wheel stacker-reclaimer is completely absorbed by the spring 64, the speed drops to a low point and the bucket wheel stacker-reclaimer stops, thus achieving the effect of buffering and stopping.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A terminal stop mechanism for a bucket wheel stacker-reclaimer, comprising a terminal stop (1), characterized in that: The end of the terminal stop (1) is fixed with a support plate (2), and multiple reinforcing steel bars (4) are fixed inside the terminal stop (1). The side wall of the terminal stop (1) is provided with a notch (5), and a buffer plate (6) is movably installed in the notch (5). A buffer pad (7) is adhered to the side wall of the buffer plate (6). Also includes: A buffer assembly is provided to stop and buffer the bucket wheel stacker-reclaimer when it travels to its limit distance.

2. The end stop mechanism of a bucket wheel stacker-reclaimer according to claim 1, characterized in that: The support plate (2) is internally threaded with multiple bolts (3), and the connection between the support plate (2) and the bolts (3) is hollow threaded.

3. The end stop mechanism of a bucket wheel stacker-reclaimer according to claim 2, characterized in that: The buffer component includes: A fixing rod (61) is fixed to the opposite sides of the inner wall of the recess (5). A frustum (62) is fixed at the end of the fixing rod (61). A spring (64) is sleeved on the outside of the fixing rod (61). A slider (63) is slidably sleeved on the fixing rod (61). A connecting rod (65) is hinged to the two side walls of the slider (63). A support block (66) is hinged to the end of the connecting rod (65).

4. The end stop mechanism of a bucket wheel stacker-reclaimer according to claim 3, characterized in that: The two ends of the spring (64) are fixedly connected to the side wall of the recess (5) of the terminal stop (1) and the side wall of the slider (63), respectively. The support block (66) is fixedly connected to the buffer plate (6). The support block (66) and the connecting rod (65) are symmetrically distributed about the slider (63).

5. The end stop mechanism of a bucket wheel stacker-reclaimer according to claim 1, characterized in that: The multiple reinforcing bars (4) are arranged in a linear array, and the terminal stop (1) has mounting holes to facilitate the installation of the reinforcing bars (4).

6. The end stop mechanism of a bucket wheel stacker-reclaimer according to claim 1, characterized in that: The buffer pad (7) is made of rubber material, and the surface of the buffer pad (7) is provided with multiple anti-slip protrusions.

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