Buffer device of coal feeder

Abstract

The utility model discloses a buffering device of a coal feeder, which is characterized in that through the arrangement of the buffering device, when coal falls to the feeding end of a hopper of the coal feeder, damping devices on the two sides of the hopper of the coal feeder relieve vibration, a connecting rod is extruded, the angle of the connecting rod is changed, and a sliding block is driven to slide in a sliding rod and a sliding groove formed in a grounding plate; buffer springs on the sliding rods are extruded, impact and vibration are relieved, meanwhile, after the buffer springs are extruded, the sliding blocks are reset through elastic acting force, and in the coal falling process, buffering is repeated, meanwhile, the hopper is rotated, a top plate in the damping device is extruded, the top plate slides in a bottom plate, and meanwhile the springs are driven to move, impact and damping are conducted. The hopper is driven to rotate and reset through the reset of the buffer spring of the buffer device, the extension part and the spring are made of rubber materials, so that flexibility and flexibility are achieved, and meanwhile, the operation of damping work and the operation stability of the device are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coal feeder equipment, in particular to a buffer device for a coal feeder. Background Technique

[0002] The coal feeders 201 and 202 in our workshop are responsible for the coal distribution work of the mine raw coal and are the throat equipment of the mine coal flow extension line. Due to the large drop between the main shaft discharge bin and the coal feeder box body, when the main shaft unloading bucket unloads materials, the impact on the coal feeder is relatively large. When the coal falls, a relatively large impact force will be generated, and the force will be directly transmitted to the coal feeder hopper and its connecting components, resulting in damage, deformation or accelerated wear of the equipment structure. Content of the Utility Model

[0003] The purpose of the utility model is to provide a buffer device for a coal feeder to solve the problems that there is a large drop between the main shaft discharge bin and the coal feeder box body, when the main shaft unloading bucket unloads materials, the impact on the coal feeder is relatively large, when the coal falls, a relatively large impact force will be generated, and the force will be directly transmitted to the coal feeder hopper and its connecting components, resulting in damage, deformation or accelerated wear of the equipment structure.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A buffer device for a coal feeder is installed on the coal feeder hopper. Shock-absorbing devices are arranged on the front and rear sides of the discharge end of the coal feeder hopper. The bottom end of the shock-absorbing device is bolted to a support platform. A buffer device is arranged at the bottom end of the feeding end of the coal feeder hopper.

[0005] The buffer device includes a connecting rod, a slider, a sliding rod, a buffer spring and a grounding plate. The front and rear sides of the bottom end of the feeding end of the coal feeder hopper are respectively hinged with a connecting rod. The other ends of the two connecting rods are hinged with a slider. At least two positioning through holes are formed in the slider. A sliding rod is inserted into the positioning through hole, and the slider is slidably matched with the sliding rod. The left and right side ends of the sliding rod are respectively fixedly connected with a limiting plate, and the bottom ends of the limiting plates are respectively fixedly connected to the grounding plate installed on the underground ground. A chute is formed in the grounding plate, and the slider is slidably matched with the chute. A buffer spring is arranged between the limiting plate and the slider. The buffer spring is sleeved on the sliding rod and is in contact with the circumferential outer side of the sliding rod. One end of the buffer spring abuts against the limiting plate, and the other end abuts against the slider.

[0006] Preferably, the shock-absorbing device includes a bottom plate, a top plate and a shock-absorbing spring. The bottom plate is bolted to the support platform. The bottom plate is a shell with an upward opening. A top plate is slidably matched in the bottom plate. A shock-absorbing spring is fixedly connected to the middle of the bottom plate. The top end of the shock-absorbing spring is fixedly connected to a positioning platform. The top end of the positioning platform is connected with a screw rod. The screw rod passes through the top plate and is hinged to the L-shaped connecting plates on the front and rear sides of the discharge end of the coal feeder hopper.

[0007] Preferably, it further includes a coal baffle disposed obliquely, fixedly connected to the top end of the coal feeder hopper for preventing coal splashing.

[0008] Preferably, the buffer spring and the shock-absorbing spring are both made of rubber composite springs.

[0009] Preferably, vertical downward extension parts are provided at the bottom ends of the left and right sides of the top plate. A shock-absorbing spring is arranged between the extension parts and the bottom plate. One end of the shock-absorbing spring abuts against the extension part, and the other end abuts against the bottom plate for further reducing the vibration when the coal drops.

[0010] Preferably, the extension part is made of rubber.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By providing a buffer device, when the coal falls to the feeding end of the coal feeder hopper, the shock-absorbing devices on both sides of the coal feeder hopper slow down the vibration, and at the same time squeeze the connecting rod. The connecting rod changes the angle and drives the slider to slide in the chute formed on the sliding rod and the grounding plate, squeezing the buffer spring on the sliding rod to slow down the impact and vibration. At the same time, after the buffer spring is squeezed, through the elastic force, the slider is reset. During the falling process of the coal, the buffering is repeated, and at the same time, the hopper is rotated to squeeze the top plate in the shock-absorbing device and slide in the bottom plate, driving the spring to move for impact and shock absorption. Then, through the reset of the buffer spring of the buffer device, the hopper is driven to rotate and reset. Since the extension part and the spring are made of rubber, they have flexibility and flexibility, while ensuring the operation of the shock-absorbing work and the stability of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic front structure diagram of the whole of the present utility model.

[0014] Figure 2 It is a schematic top structure diagram of the whole of the present utility model.

[0015] Figure 3 It is a schematic diagram of the auxiliary pressing device of the present utility model.

[0016] In the figure: 1. Coal feeder hopper; 2. Support platform; 3. Shock-absorbing device; 301. Bottom plate; 302. Top plate; 303. Shock-absorbing spring; 304. Extension part; 305. Connecting plate; 4. Coal baffle; 5. Buffer device; 501. Connecting rod; 502. Slider; 503. Sliding rod; 504. Buffer spring; 505. Grounding plate; 506. Limiting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0019] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment 1: Please refer to Figure 1 、 3, an embodiment provided by the utility model: a coal feeder buffer device, installed on the coal feeder hopper 1, the front and rear sides of the discharge end of the coal feeder hopper 1 are provided with a shock absorbing device 3, the bottom end of the shock absorbing device 3 is bolted to the support platform 2, and the bottom end of the feeding end of the coal feeder hopper 1 is provided with a buffer device 5, the shock absorbing device 3 includes a bottom plate 301, a top plate 302, and a shock absorbing spring 303, the bottom plate 301 is bolted to the support platform 2, the bottom plate 301 is a shell with an opening upward, accommodating the top plate 302 and the shock absorbing spring 303, the top plate 302 is slidably matched in the bottom plate 301, and the middle part of the bottom plate 301 is fixed A shock absorbing spring 303 is connected, and the top of the shock absorbing spring 303 is fixedly connected to a positioning platform, and the top of the positioning platform is connected to a screw rod, which passes through the top plate 302 and is hinged to the L-shaped connecting plates 305 on the front and rear sides of the discharge end of the coal feeder hopper 1. The L-shaped connecting plates 305 provide additional support and fixation, thereby enhancing the stability and durability of the shock absorbing device 3 during the operation of the coal feeder, and forming the shock absorbing device 3 and the discharge end of the coal feeder hopper 1 into a whole. The setting of the screw rod enables the coal feeder hopper 1 to rotate during the buffering process of the buffer device 5, and to work in conjunction with the buffer device 5 to further reduce impact and vibration.

[0022] The bottom ends of the left and right sides of the top plate 302 are provided with vertically downward extension parts 304, and a gap is left between the extension parts 304 and the inner wall of the bottom plate 301 to provide a movement gap when the hopper moves. A shock-absorbing spring 303 is provided between the extension part 304 and the bottom plate 301. One end of the shock-absorbing spring 303 abuts against the extension part 304, and the other end abuts against the bottom plate 301, so as to further reduce the vibration when the coal falls. During the coal transportation process, the discharging end transports the coal. When vibration occurs, the top plate 302 slides in the bottom plate 301 and squeezes the shock-absorbing spring 303 at the same time. The shock-absorbing spring 303 absorbs the vibration. At the same time, the shock-absorbing springs 303 at the bottom ends of the extension parts 304 on both sides are also squeezed to further reduce the vibration. The extension part 304 is made of rubber, and the material of the shock-absorbing spring 303 is a rubber composite spring. It has good elastic recovery and shock absorption performance, effectively reduces impact and vibration transmission, and prolongs the service life of the hopper and its supporting structure. At the same time, the rubber composite spring has a long service life, is not prone to plastic deformation or fatigue fracture, and can withstand long-term frequent use without failure, which can reduce maintenance costs and replacement frequency.

[0023] Example 2: Please refer to Figure 2 , based on Example 1, it also has the following structure:

[0024] The buffer device 5 includes a connecting rod 501, a slider 502, a sliding rod 503, a buffer spring 504 and a grounding plate 505. The front and rear sides of the bottom end of the feeding end of the coal feeder hopper 1 are respectively hinged with a connecting rod 501. At least two connecting rods 501 are respectively arranged at the front and rear sides, which can ensure the stability during the buffering of the hopper. The other ends of the two connecting rods 501 are hinged with a slider 502. The slider 502 connects the ends of the two connecting rods 501, enabling them to slide relative to each other. At the same time, it slides on the sliding rod 503 and the chute of the grounding plate 505. At least two positioning through holes are provided on the slider 502, and the sliding rod 503 is inserted into the positioning through holes. The sliding rod 503 supports the slider 502 and is in sliding fit through the positioning through holes, ensuring the movement track of the slider 502, providing additional support and positioning functions, enabling the slider 502 to slide stably on the sliding rod 503. And the slider 502 is in sliding fit with the sliding rod 503. The left and right sides of the sliding rod 503 are respectively fixedly connected with limiting plates 506. The limiting plates 506 limit the movement range of the slider 502, and the bottom ends of the limiting plates 506 are respectively fixedly connected to the grounding plate 505 installed on the underground ground. The grounding plate 505 contacts the ground to fix the bottom of the whole device, providing a stable foundation. A chute is provided on the grounding plate 505, and the slider 502 is in sliding fit with the chute. A buffer spring 504 is arranged between the limiting plate 506 and the slider 502. The buffer spring 504 is sleeved on the sliding rod 503 and fits against the outer circumference of the sliding rod 503. One end of the buffer spring 504 abuts against the limiting plate 506, and the other end abuts against the slider 502. The buffer spring 504 is used to absorb and relieve the impact force during the movement of the feeding end of the hopper. Made of rubber composite material, it can effectively damp and buffer the impact force generated during the feeding process of the hopper, protecting the life of the whole device and equipment. The material of the buffer spring 504 is a rubber composite spring. At the same time, the length of the buffer spring 504 can be increased or decreased according to the actual use situation, so as to change the angle of the hopper. Subsequently, the shock absorption device 3 is installed.

[0025] During use, the feeding port of the coal feeder hopper 1 receives the falling coal, and at the same time squeezes the connecting rod 501. The two connecting rods 501 rotate simultaneously. At the same time, the coal feeder hopper 1 rotates through the set screw, squeezing the top plate 302 of the shock absorption device 3 and squeezing the shock absorption spring 303. And when the hopper vibrates, since both of them are made of rubber material, they have softness and flexibility. Subsequently, the connecting rod 501 drives the slider 502 to slide on the chute opened on the grounding plate 505 and on the sliding rod 503, squeezing the buffer spring 504 on the sliding rod 503. The buffer spring 504 abuts against the limiting plate 506 and rebounds through elastic potential energy to slow down the impact. And while the slider 502 slides, the shock absorption device 3 also moves, further reducing vibration and impact.

[0026] Example 3: Please refer to Figure 1, on the basis of Embodiment 1, the following structure is further provided:

[0027] It further includes a coal baffle 4 disposed obliquely, fixedly connected to the top of the coal feeder hopper 1, for preventing coal from splashing. The oblique setting can more effectively guide the flow direction of coal, reduce splashing and scattering, so as to keep the working environment clean and safe.

[0028] The above are only the embodiments of the present invention, and common knowledge such as the specific structures and characteristics known in the solutions is not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A coal feeder buffer device, mounted on a coal feeder hopper (1), characterized in that: Shock absorbers (3) are provided on both sides of the front and rear of the discharge end of the coal feeder hopper (1); the bottom end of the shock absorber (3) is bolted to a support platform (2); and a buffer device (5) is provided at the bottom end of the feed end of the coal feeder hopper (1). The buffer device (5) comprises a connecting rod (501), a slider (502), a slide bar (503), a buffer spring (504) and a grounding plate (505). The front and rear sides of the bottom end of the feeding end of the coal feeder hopper (1) are respectively hinged with connecting rods (501), and a slider (502) is hinged between the other ends of the two connecting rods (501). The slider (502) is provided with at least two positioning through holes, and the slide bar (503) is inserted into the positioning through holes. The slider (502) is slidably matched with the slide bar (503), and the left and right side ends of the slide bar (503) are respectively fixed. A limit plate (506) is connected, and the bottom ends of the limit plates (506) are respectively fixedly connected to a grounding plate (505) installed on the ground underground. A sliding groove is provided on the grounding plate (505), and the slider (502) is slidably matched in the sliding groove. A buffer spring (504) is provided between the limit plate (506) and the slider (502). The buffer spring (504) is sleeved on the slider (503) and fits with the outer circumference of the slider (503). One end of the buffer spring (504) is against the limit plate (506), and the other end is against the slider (502).

2. The coal feeder buffer device according to claim 1, characterized in that: The shock absorbing device (3) comprises a bottom plate (301), a top plate (302), and a shock absorbing spring (303); the bottom plate (301) is bolted to the support platform (2); the bottom plate (301) is a shell with an opening facing upward; the top plate (302) is slidably fitted inside the bottom plate (301); the middle of the bottom plate (301) is fixedly connected to the shock absorbing spring (303); the top end of the shock absorbing spring (303) is fixedly connected to the positioning platform; the top end of the positioning platform is connected to a screw rod; the screw rod passes through the top plate (302) and is hinged to the L-shaped connecting plates (305) at the front and rear sides of the discharge end of the coal feeder hopper (1).

3. The coal feeder buffer device according to claim 1, characterized in that: It also includes an obliquely arranged coal blocking plate (4) fixedly connected to the top of the coal feeder hopper (1) to prevent coal from splashing.

4. The coal feeder buffer device according to claim 1, characterized in that: The buffer spring (504) and the shock absorbing spring (303) are both made of rubber composite springs.

5. The coal feeder buffer device according to claim 2, characterized in that: The bottom ends of the left and right sides of the top plate (302) are provided with vertically downward extending parts (304), and a shock absorbing spring (303) is provided between the extending part (304) and the bottom plate (301), and one end of the shock absorbing spring (303) is in contact with the extending part (304), and the other end is in contact with the bottom plate (301), so as to further reduce the vibration when the coal falls.

6. The coal feeder buffer device according to claim 5, characterized in that: The extension portion (304) is made of rubber.

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