Hopper device of gantry crane

Abstract

The utility model relates to the technical field of grabbing equipment, in particular to a hopper device of a gantry crane, which comprises a hopper, a mounting frame, a hanging bracket and a knocking piece, the hanging bracket is fixedly connected with the mounting frame and located above the mounting frame, the two hoppers are rotationally mounted at the bottom end of the mounting frame, the two hoppers are opened or closed under the action of first driving parts of the hoppers, and the side face of each hopper is provided with a knocking part, a first spring, a rotating part and an intermittent driving assembly. The knocking pieces are fixedly connected with one ends of the first springs, the mounting frame is provided with movable openings corresponding to the knocking pieces in number, the other ends of the first springs penetrate through the movable openings to be fixedly connected with the rotating pieces, the ends, connected with the first springs, of the rotating pieces can move in the movable openings, and the middles of the rotating pieces are rotationally mounted on the mounting frame. The other end of the rotating part is driven by the intermittent driving assembly to generate indirect rotation. The hopper is used for solving the problem that in the prior art, when a hopper unloads materials, the materials are not prone to being disengaged from the hopper.

Description

Technical Field

[0001] The utility model relates to the technical field of grasping devices, in particular to a hopper device of a portal crane. Background Art

[0002] A hopper is a device for excavating and grasping materials. It usually consists of a bucket-shaped structure that can be closed and opened. Hoppers are widely used in various industries and fields, such as mining, construction, water conservancy projects, port logistics, etc.

[0003] The working principle of the hopper is usually to control its opening and closing through the hydraulic system or electrical system of an excavator or a crane. When loading, the hopper closes in the material pile, and the material is grabbed into the accommodating space; when unloading, the hopper opens in a suspended state above the material pile, and the material scatters on the material pile.

[0004] When the hopper closes to grasp the material, the material will be squeezed. After the material attached to the inner wall of the hopper is squeezed, it is easy to adhere to the inner wall of the hopper. When unloading, the material is not easy to escape from the hopper.

[0005] Therefore, the inventor proposes a hopper device of a portal crane. Summary of the Utility Model

[0006] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a hopper device of a portal crane, which is used to solve the problem that the material is not easy to escape from the hopper in the current technology when unloading.

[0007] To achieve the above purpose and other related purposes, the present utility model provides a hopper device of a portal crane, including a hopper, a mounting frame, a hanging frame and a knocking member;

[0008] The hanging frame is fixedly connected to the mounting frame, the hanging frame is located above the mounting frame, two hoppers are rotatably installed at the bottom end of the mounting frame, and each hopper is opened or closed by its respective first driving member. A knocking member, a first spring, a rotating member and an intermittent driving assembly are provided on the side surface of each hopper. The knocking member is fixedly connected to one end of the first spring. The mounting frame is provided with activity openings corresponding to the number of knocking members. The other end of the first spring passes through the activity opening and is fixedly connected to the rotating member. One end of the rotating member connected to the first spring can move within the activity opening. The middle part of the rotating member is rotatably installed on the mounting frame, and the other end of the rotating member is driven by the intermittent driving assembly to rotate intermittently.

[0009] Optionally, the first driving member is an electro-hydraulic push rod, one end of the electro-hydraulic push rod is hinged to the bottom end of the mounting frame, and the other end is hinged to the hopper.

[0010] Optionally, the knocking member, the first spring, the rotating member, and the intermittent driving assembly are symmetrically arranged on the front and rear sides of the hopper.

[0011] Optionally, the intermittent driving assembly includes a second spring, a runner, and a second driving member;

[0012] The second spring is located within the movable opening, with one end fixedly connected to the mounting bracket and the other end fixedly connected to the rotating member. The elastic force of the second spring causes the rotating member to move towards the hopper. The runner is rotatably mounted on the mounting bracket, and a plurality of protrusions are fixedly arranged at intervals on the outer peripheral surface of the runner. One end of the rotating member away from the first spring is located within the gap between two adjacent protrusions of the runner, and the runner rotates under the action of the second driving member.

[0013] Optionally, it further includes a first motor. The two second driving members arranged front and rear are jointly driven by the first motor. The second driving member includes a first turbine, a first worm, a second bevel gear, and a rotating seat;

[0014] A first turbine is also fixedly connected to the rotating shaft of the runner. The first turbine meshes with the first worm. The first worm is rotatably mounted on the mounting bracket through the rotating seat. One end of the first worm is fixedly connected to the second bevel gear. The first motor is fixedly mounted on the mounting bracket, and the output shaft of the first motor is fixedly connected to a first bevel gear. The first bevel gear meshes with the two second bevel gears simultaneously.

[0015] Optionally, the length directions of the first spring and the second spring are perpendicular.

[0016] Optionally, the cross-section of the protrusion is a right-angled quadrilateral with an inclined side.

[0017] Optionally, the knocking member is spherical.

[0018] Optionally, the distance between the two knocking members is less than the width of the hopper.

[0019] Optionally, the knocking member is a steel ball wrapped with rubber on the surface.

[0020] As described above, the present utility model has the following beneficial effects:

[0021] In this application, a knocking member, a first spring, a rotating member, and an intermittent driving assembly are provided on the side of the hopper. The intermittent driving assembly drives the rotating member to rotate intermittently, and drives the knocking member to periodically knock on the side of the hopper through the first spring, so that the residual material attached to the hopper falls off from the hopper. The knocking member, the first spring, the rotating member, and the intermittent driving assembly are symmetrically arranged on the front and back sides of the hopper, making the overall structure more stable, reducing the impact on the first driving member while ensuring the knocking effect, and effectively extending the service life of the first driving member. The knocking member, the first spring, the rotating member, and the intermittent driving assembly are arranged on the mounting frame and separated from the hopper, which does not affect the normal material grasping of the hopper. When the hopper is opened, both sides of the hopper enter the knocking range of the knocking member. The intermittent driving assembly drives the rotating member to rotate intermittently. The rotating member overcomes the elastic force of the second spring and drives the first spring and the knocking member to move away from the side of the hopper, and then returns under the action of the elastic force of the second spring, so as to perform cyclic knocking, so that the residual material is easily detached from the hopper. By designing the first spring, when the hopper enters the knocking range of the knocking member, it will squeeze the knocking members on both sides to cause the first spring to produce a bending deformation, so that the knocking member is closely attached to the side of the hopper. Under the driving action of the subsequent intermittent driving assembly, the knocking effect is better. Description of the Drawings

[0022] Figure 1 It shows the overall structural schematic diagram of one direction of the present utility model.

[0023] Figure 2 It shows the overall structural schematic diagram of one direction of the present utility model.

[0024] Figure 3 It shows the structural schematic diagram of the second driving member 210 of the present utility model (removing the hanging bracket 203).

[0025] Element Number Description

[0026] Hopper 201, Mounting Frame 202, Movable Port 2021, Hanging Bracket 203, First Driving Member 204, Knocking Member 205, First Spring 206, Second Spring 207, Rotating Member 208, Runner 209, Second Driving Member 210, First Turbine 2101, First Worm 2102, Second Bevel Gear 2103, Rotating Seat 2104, First Motor 211, First Bevel Gear 2111. Detailed Embodiment

[0027] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0028] Please refer to Figures 1 to 3It should be noted that the structures, proportions, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions under which the present utility model can be implemented. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present utility model can be implemented.

[0029] The following various embodiments are only for illustration purposes. Combinations can be made between the various embodiments, and it is not limited to the content shown in the following single embodiment.

[0030] Please refer to Figures 1 - 3 , the present utility model provides a hopper device for a portal crane, including a hopper 201, a mounting frame 202, a suspension bracket 203, and a knocking member 205;

[0031] The suspension bracket 203 is fixedly connected to the mounting frame 202. The suspension bracket 203 is located above the mounting frame 202. Two hoppers 201 are rotatably installed at the bottom end of the mounting frame 202. Each hopper 201 is opened or closed by its respective first driving member 204. A knocking member 205, a first spring 206, a rotating member 208, and an intermittent driving assembly are provided on the side of each hopper 201. The knocking member 205 is fixedly connected to one end of the first spring 206. The mounting frame 202 is provided with an activity port 2021 corresponding to the number of knocking members 205. The other end of the first spring 206 passes through the activity port 2021 and is fixedly connected to the rotating member 208. One end of the rotating member 208 connected to the first spring 206 can move within the activity port 2021. The middle of the rotating member 208 is rotatably installed on the mounting frame 202. The other end of the rotating member 208 is driven by the intermittent driving assembly to generate intermittent rotation. In this embodiment, as Figure 2 , the suspension bracket 203 can be connected to an external crane through a cable. In this application, the knocking member 205, the first spring 206, the rotating member 208, and the intermittent driving assembly provided on the side of the hopper 201. The intermittent driving assembly drives the rotating member 208 to generate intermittent rotation, and drives the knocking member 205 to periodically knock on the side of the hopper 201 through the first spring 206, so that the residual materials attached to the hopper 201 fall off from the hopper 201. In this application, the knocking member, the first spring, the rotating member, and the intermittent driving assembly are arranged on the mounting frame and separated from the hopper, without affecting the normal material grabbing of the hopper.

[0032] In this embodiment, as Figure 1 , the first driving member 204 is an electro-hydraulic push rod. One end of the electro-hydraulic push rod is hinged to the bottom end of the mounting frame 202, and the other end is hinged to the hopper 201.

[0033] In this embodiment, the knocking member 205, the first spring 206, the rotating member 208 and the intermittent driving assembly are symmetrically arranged on the front and rear sides of the hopper 201. In this embodiment, the knocking member 205, the first spring 206, the rotating member 208 and the intermittent driving assembly are symmetrically arranged on the front and rear sides of the hopper 201, making the overall structure more stable, reducing the impact on the first driving member 204 while ensuring the knocking effect, and effectively extending the service life of the first driving member 204.

[0034] In this embodiment, as Figure 2 and Figure 3 , the intermittent driving assembly includes a second spring 207, a runner 209 and a second driving member 210;

[0035] The second spring 207 is located in the movable opening 2021. One end of the second spring 207 is fixedly connected to the mounting frame 202, and the other end is fixedly connected to the rotating member 208. The elastic force of the second spring 207 causes the rotating member 208 to move towards the hopper 201. The runner 209 is rotatably mounted on the mounting frame 202. A plurality of protrusions are fixedly arranged at intervals on the outer peripheral surface of the runner 209. One end of the rotating member 208 away from the first spring 206 is located in the gap between two adjacent protrusions of the runner 209. The runner 209 rotates under the action of the second driving member 210.

[0036] In this embodiment, a first motor 211 is further included. The two second driving members 210 arranged front and rear are jointly driven by the first motor 211. The second driving member 210 includes a first turbine 2101, a first worm 2102, a second bevel gear 2103 and a rotating seat 2104;

[0037] A first turbine 2101 is also fixedly connected to the rotating shaft of the runner 209. The first turbine 2101 meshes with a first worm 2102. The first worm 2102 is rotatably mounted on the mounting frame 202 through a rotating seat 2104. One end of the first worm 2102 is fixedly connected to a second bevel gear 2103. The first motor 211 is fixedly mounted on the mounting frame 202. The output shaft of the first motor 211 is fixedly connected to a first bevel gear 2111. The first bevel gear 2111 meshes with the two second bevel gears 2103 simultaneously. In this embodiment, the runner 209 can also be directly driven by a motor, and the overall structure requires four motors. In this embodiment, the two second driving members 210 arranged front and back are jointly driven by the first motor 211, and the overall structure requires two motors, saving the installation quantity of the motors. The advantage of such a design is that during long-term use, the motors are prone to failures. Reducing the number of motors used can reduce the probability of failures when this application is in use. At the same time, the cost of the motors is high, and reducing the number of motors can save costs.

[0038] In this embodiment, the length direction of the first spring 206 is perpendicular to the length direction of the second spring 207. In this embodiment, for the mutually perpendicular first spring 206 and second spring 207, when producing the same knocking effect, the second spring 207 can be designed shorter, saving the material loss and occupied space of the second spring 207.

[0039] In this embodiment, the cross-section of the protrusion is a right-angled quadrilateral with an inclined side. In this embodiment, the cross-section of the protrusion is a right-angled quadrilateral with an inclined side, and the inclined side of the protrusion contacts the rotating member 208, making it easier for the runner 209 to drive the rotating member 208.

[0040] In this embodiment, the knocking member 205 is spherical. In this embodiment, the spherical knocking member 205 makes it smoother for the hopper 201 to enter the knocking range of the knocking member 205. In this embodiment, chamfers can also be provided on both sides of the back surface of the hopper 201 to reduce the resistance when the hopper 201 enters the knocking range of the knocking member 205.

[0041] In this embodiment, the distance between the two knocking members 205 is less than the width of the hopper 201. In this embodiment, the distance between the two knocking members 205 is less than the width of the hopper 201. When the hopper 201 enters the knocking range of the knocking members 205, it will squeeze the knocking members 205 on both sides, causing the first spring 206 to produce a bending deformation, making the knocking members 205 closely attached to the side surface of the hopper 201. Under the driving action of the subsequent intermittent driving assembly, the knocking effect is better.

[0042] In this embodiment, the knocking member 205 is a steel ball wrapped with rubber on the surface. In this embodiment, the steel ball wrapped with rubber is not easy to damage the knocking points of the hopper 201 during long-term use.

[0043] The working principle of the present utility model:

[0044]

[0044] The hopper 201 closes and grabs the material under the action of the first driving member 204, and then is transported to the unloading area by a crane for unloading. The first driving member 204 drives the hopper 201 to open, so that the two hoppers 201 enter the knocking range of the knocking member 205. The first motor 211 is started, the first motor 211 drives the first bevel gear 2111 to rotate, the first bevel gear 2111 drives the two second bevel gears 2103 to rotate, the second bevel gear 2103 drives the respective corresponding first worm 2102 to rotate, the first worm 2102 drives the first turbine 2101 to rotate, the first turbine 2101 drives the runner 209 to rotate, the runner 209 drives the rotating member 208 to rotate, the rotating member 208 overcomes the elastic force of the second spring 207 and drives the knocking member 205 and the first spring 206 to rotate. The runner 209 continues to rotate, one end of the rotating member 208 enters the gap between two adjacent protrusions of the runner 209, and the other end of the rotating member 208 returns the knocking member 205 and the first spring 206 under the elastic force of the second spring 207, so as to knock the hopper 201. During the continuous rotation of the first motor 211, the above process is cycled.

[0045]

[0045] The above embodiments only illustratively explain the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A hopper device of a portal crane, characterized in that It includes a hopper (201), a mounting frame (202), a hanging frame (203) and a knocking member (205); The hanging frame (203) is fixedly connected to the mounting frame (202), the hanging frame (203) is located above the mounting frame (202), two hoppers (201) are rotatably mounted at the bottom end of the mounting frame (202), and each hopper (201) can be opened or closed under the action of its respective first driving member (204). A knocking member (205), a first spring (206), a rotating member (208) and an intermittent driving assembly are provided on the side of each hopper (201). The knocking member (205) is fixedly connected to one end of the first spring (206). The mounting frame (202) is provided with moving openings (2021) corresponding to the number of the knocking members (205). The other end of the first spring (206) passes through the moving opening (2021) and is fixedly connected to the rotating member (208). One end of the rotating member (208) connected to the first spring (206) can move within the moving opening (2021). The middle part of the rotating member (208) is rotatably mounted on the mounting frame (202), and the other end of the rotating member (208) is driven by the intermittent driving assembly to rotate intermittently.

2. The hopper device of a portal crane according to claim 1, characterized in that, The first driving member (204) is an electro-hydraulic push rod. One end of the electro-hydraulic push rod is hinged to the bottom end of the mounting frame (202), and the other end is hinged to the hopper (201).

3. The hopper device of a portal crane according to claim 1, characterized in that, The knocking member (205), the first spring (206), the rotating member (208) and the intermittent driving assembly are symmetrically arranged on the front and rear sides of the hopper (201).

4. The hopper device of a portal crane according to claim 3, characterized in that, The intermittent driving assembly includes a second spring (207), a runner (209) and a second driving member (210); The second spring (207) is located within the moving opening (2021), one end is fixedly connected to the mounting frame (202), and the other end is fixedly connected to the rotating member (208). The elastic force of the second spring (207) causes the rotating member (208) to move towards the hopper (201). The runner (209) is rotatably mounted on the mounting frame (202). A number of protrusions are fixedly arranged at intervals on the outer peripheral surface of the runner (209). One end of the rotating member (208) away from the first spring (206) is located within the gap between two adjacent protrusions of the runner (209). The runner (209) rotates under the action of the second driving member (210).

5. The hopper device of a portal crane according to claim 4, characterized in that, It further includes a first motor (211). The two second driving members (210) arranged front and rear are jointly driven by the first motor (211). The second driving member (210) includes a first turbine (2101), a first worm (2102), a second bevel gear (2103) and a rotating seat (2104); A first turbine (2101) is also fixedly connected to the rotating shaft of the runner (209). The first turbine (2101) meshes with the first worm (2102). The first worm (2102) is rotatably mounted on the mounting frame (202) through a rotating seat (2104). One end of the first worm (2102) is fixedly connected to a second bevel gear (2103). The first motor (211) is fixedly mounted on the mounting frame (202). The output shaft of the first motor (211) is fixedly connected to a first bevel gear (2111). The first bevel gear (2111) meshes with the two second bevel gears (2103) simultaneously.

6. The hopper device of a portal crane according to claim 4, characterized in that, The length direction of the first spring (206) is perpendicular to the length direction of the second spring (207).

7. The hopper device of a portal crane according to claim 4, characterized in that, The cross-section of the protrusion is a right-angled quadrilateral with an inclined side.

8. The hopper device of a portal crane according to claim 1, characterized in that, The striking member (205) is spherical.

9. The hopper device of a portal crane according to claim 3, characterized in that, The distance between the two striking members (205) is less than the width of the hopper (201).

10. The hopper device of a portal crane according to claim 1, characterized in that, The striking member (205) is a steel ball wrapped with rubber on the surface.

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