Hydraulic pushing device

Abstract

The utility model provides a hydraulic pushing device. The hydraulic pushing device comprises a bottom plate, a driving assembly and a pushing plate. The push plate is arranged above the bottom plate, and the back side of the push plate is connected with an overturning shaft; the number of the driving assemblies is two, and the two driving assemblies are arranged on the two sides of the push plate correspondingly. The driving assembly comprises a hydraulic cylinder, a push lug and a sliding block. The sliding blocks are in one-to-one correspondence with the push plates; the sliding block is arranged on the bottom plate in a sliding manner; a first contact surface and a second contact surface are respectively formed on the front side and the rear side of the mounting groove; the end parts of the overturning shafts are rotatably arranged in the mounting grooves of the corresponding sliding blocks; the first connecting end of the push lug is connected with the turnover shaft, and the first connecting end of the push lug is rotatably arranged in the mounting groove; the second connecting end of the push lug is connected with the driving end of the hydraulic cylinder; when the push lug is in contact with the first contact surface, the bottom of the push plate is in contact with the bottom plate; and when the push lug is in contact with the second contact surface, the bottom of the push plate is higher than the material on the bottom plate. The device can stably convey materials for a long time.

Description

Technical Field

[0001] The present application relates to the technical field of conveyors, and in particular to a hydraulic pushing device. Background Art

[0002] Steel mills, mining plants, etc. usually use belts to transport materials. During the transportation of materials, some materials may adhere to the surface of the belt. After passing through the redirecting roller, the belt is transported in the reverse direction. The belt surface with materials attached is facing the ground. The materials attached to it will fall to the ground under the influence of gravity and scraper cleaners. Among them, the fallen materials near the redirecting roller are in a small and compact space. These materials are difficult to clean into the funnel, and the fallen materials will generate dust, which does not meet environmental protection requirements.

[0003] In the related technology, some enterprises use scraper conveyors to transport materials. However, in the current scraper conveyors, the chain used to drive the scraper is in the material conveying area. During the material conveying process, some highly corrosive and sticky materials will adhere to the chain, causing corrosion and jamming of the chain, affecting the working efficiency and service life of the device.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The present application is proposed in view of the above-mentioned problems. According to one aspect of the present application, a hydraulic pushing device is provided, including: a base plate, a driving assembly and a pushing plate; the pushing plate is arranged above the base plate, and a flip shaft is connected to the back side of the pushing plate; there are two driving assemblies, and the two driving assemblies are respectively arranged on both sides of the pushing plate; the driving assembly includes a hydraulic cylinder, a pushing ear and a sliding block; the sliding block corresponds to the pushing plate one by one; the sliding block is slidably arranged on the base plate; an installation groove is arranged on the sliding block, and a first contact surface and a second contact surface are formed on the front and rear sides of the installation groove respectively; the end of the flip shaft is rotatably arranged in the installation groove of the corresponding sliding block; the first connecting end of the pushing ear is connected to the flip shaft, and the first connecting end of the pushing ear is rotatably arranged in the installing groove; the second connecting end of the pushing ear is connected to the driving end of the hydraulic cylinder; wherein, when the pushing ear contacts the first contact surface, the bottom of the pushing plate contacts the base plate; when the pushing ear contacts the second contact surface, the height of the bottom of the pushing plate is higher than the height of the material on the base plate.

[0006] Exemplarily, there are multiple push plates, which are sequentially arranged above the bottom plate along the material moving direction.

[0007] Exemplarily, the number of push ears is one, the first connecting end of the push ear is arranged in the mounting groove of any one of the multiple sliders, and the first connecting end of the push ear is connected to the flip axis corresponding to the slider; the device also includes a swinging assembly for making multiple push plates move synchronously, and the number of swinging assemblies is two groups, which are respectively arranged on both sides of the push plate; the swinging assembly includes a swinging block and a first connecting rod, the number of swinging blocks corresponds to the number of push plates one by one, and the swinging blocks are arranged parallel to each other; the first connecting end of each swinging block is connected to the corresponding flip axis, and the second connecting end of each swinging block is connected to the first connecting rod.

[0008] Exemplarily, the number of push ears corresponds one-to-one to the number of sliders, and the first connecting end of each push ear is arranged in the mounting groove of the corresponding slider; the driving end of the hydraulic cylinder is connected to the second connecting end of any push ear, and the second connecting ends of two adjacent push ears are connected by a second connecting rod.

[0009] Exemplarily, two adjacent sliding blocks are connected via a third connecting rod.

[0010] Exemplarily, guide rails are arranged on the bottom plate, and there are two guide rails, which are respectively located on both sides of the push plate; and the slider is slidably arranged on the guide rails.

[0011] Exemplarily, the device further comprises a protective cover, which is arranged on the outside of the driving assembly.

[0012] Exemplarily, a through hole corresponding to the flip shaft is provided on one side of the protective cover close to the push plate, and the end of the flip shaft passes through the through hole and is arranged in the mounting groove of the corresponding slider.

[0013] Exemplarily, the device also includes a drag plate, the bottom of which is in contact with the bottom plate; and the drag plate is located behind the push plate along the material moving direction, and the drag plate is used to move back and forth with the push plate to clean the bottom plate.

[0014] Exemplarily, the push plate includes a plate body and a scraper, the scraper is connected to the bottom of the plate body, and the bottom of the push plate is the bottom of the scraper.

[0015] Compared with the prior art, the present application can avoid direct contact between the drive assembly and the material by setting the drive assembly on both sides of the push plate, thereby avoiding the material adhering to the drive assembly to cause corrosion and jamming of the drive assembly, which helps to improve the operation stability and service life of the device. By matching the push ear with the slider, the push plate can be controlled to flip, so that the push plate can be in an appropriate position when pushing and pulling back, ensuring the stable operation of material transportation. The pushing process of this scheme relies on the reciprocating forward and backward movement of the push plate, and the bottom plate surface where the material is placed is always facing upward, which can avoid the material attached to the plate surface falling due to the change in the direction of the plate surface. In addition, since the bottom of the push plate of this scheme is in direct contact with the bottom plate when pushing the material forward, it can effectively prevent the material from adhering to the bottom plate surface, avoid the occurrence of hardening, and further improve the stability of the material transportation process. In short, the device of this scheme can transport materials stably for a long time, and no human intervention is required during the transportation process, which helps to improve the efficiency of material transportation.

[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a hydraulic pusher device according to an embodiment of the present application;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the middle drive assembly;

[0020] Figure 3 for Figure 2 A side view of the mid-drive assembly;

[0021] Figure 4 This is a schematic diagram of the structure of a push ear and a slider according to an embodiment of the present application;

[0022] Figure 5 This is a schematic diagram of the structure of a slider according to an embodiment of the present application;

[0023] Figure 6 This is a schematic diagram of the overall structure of a hydraulic pusher device according to another embodiment of the present application;

[0024] Figure 7 for Figure 6 Schematic diagram of the structure of the hydraulic pusher (with hidden protective cover);

[0025] Figure 8 for Figure 7 Side view of the middle structure;

[0026] Fig. 9 This is a schematic diagram of the structure of a connecting plate according to an embodiment of the present application;

[0027] Fig.10 for Figure 1 A schematic diagram of the structure of the protective cover;

[0028] Fig.11 for Figure 2 A schematic diagram of the structure of the protective cover;

[0029] Fig.12 This is a schematic diagram of the structure of a push plate according to an embodiment of the present application.

[0030] In the figure: 1, bottom plate; 2, push plate; 201, plate body; 202, scraper; 3, guide rail; 4, protective cover; 401, through hole; 5, slider; 501, mounting groove; 502, first contact surface; 503, second contact surface; 6, hydraulic cylinder; 7, mounting bracket; 8, drag plate; 9, connecting plate; 901, groove; 10, first connecting rod; 11, swing block; 12, flip axis; 13, push ear; 14, second connecting rod; 15, third connecting rod. DETAILED DESCRIPTION

[0031] In the following description, a large number of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only relates to preferred embodiments of the present invention, and the present invention can be implemented without one or more of such details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0032] As described above, in the related art, some companies use scraper conveyors to transport materials. The scraper conveyor in the related art is introduced by taking the utility model patent with patent application number CN201220118925.2 as an example. The patent discloses a scraper conveyor for transporting coal in mines, including a motor, a chain, a driving wheel, a driven wheel and an angle wheel, wherein the motor drives the driving wheel, the driving wheel and the driven wheel, the angle wheel and the chain are combined, so that the driven wheel and the angle wheel rotate under the drive of the driving wheel. In this patent, the scraper moves forward with the chain, and moves in the opposite direction after passing the driven wheel, and the material is transported under the push of the scraper. The scraper conveyor in the related art has the following problems:

[0033] 1. The chain is in the material conveying area. During the material conveying process, some highly corrosive and sticky materials will adhere to the chain, which may easily cause chain corrosion and jamming;

[0034] 2. There is usually a certain gap between the scraper and the plate surface, which can easily cause the plate surface and the scraper to become stuck in a harsh environment, causing the chain to jump and endangering the operation of the equipment;

[0035] 3. The scraper conveyor usually runs at a fast speed, which will generate dust when transporting powder, causing secondary pollution to the site.

[0036] In order to solve at least some of the above technical problems, the present application provides a hydraulic material pushing device, which sets the driving components on both sides of the push plate to avoid direct contact between the driving components and the materials, thereby preventing the materials from adhering to the driving components and causing corrosion and jamming of the driving components, which helps to improve the operating stability and service life of the device. The specific structure and working principle of the device are described in detail below.

[0037] In order to more clearly explain the technical solution in the present application, it is described below in the form of specific embodiments.

[0038] Example 1

[0039] Combined with reference Figure 1-5 The hydraulic pushing device comprises: a bottom plate 1, a driving assembly and a pushing plate 2; the pushing plate 2 is arranged above the bottom plate 1, and a flip shaft 12 is connected to the back side of the pushing plate 2; there are two driving assemblies, and the two driving assemblies are respectively arranged on both sides of the pushing plate 2; the driving assembly comprises a hydraulic cylinder 6, a pushing ear 13 and a sliding block 5; the sliding block 5 corresponds to the pushing plate 2 one by one; the sliding block 5 is slidably arranged on the bottom plate 1; the sliding block 5 is provided with a mounting groove 501, and a first contact surface 502 and a second contact surface 502 are respectively formed on the front and rear sides of the mounting groove 501 03; the end of the flip shaft 12 is rotatably arranged in the mounting groove 501 of the corresponding slider 5; the first connecting end of the push ear 13 is connected to the flip shaft 12, and the first connecting end of the push ear 13 is rotatably arranged in the mounting groove 501; the second connecting end of the push ear 13 is connected to the driving end of the hydraulic cylinder 6; wherein, when the push ear 13 contacts the first contact surface 502, the bottom of the push plate 2 contacts the bottom plate 1; when the push ear 13 contacts the second contact surface 503, the bottom height of the push plate 2 is higher than the material height on the bottom plate 1.

[0040] like Figure 2 As described above, the hydraulic cylinder 6 can be mounted on the base plate 1 via the mounting bracket 7 .

[0041] In the solution of this embodiment, the sliders 5 in the driving assembly correspond to the push plates 2 one by one, that is, the number of sliders 5 in the driving assembly is the same as the number of push plates 2. For example, if the number of push plates 2 is 2, the number of sliders 5 in each driving assembly is two.

[0042] In the solution of this embodiment, the slider 5 is slidably disposed on the bottom plate 1. In some possible embodiments, the bottom of the slider 5 can be directly disposed on the bottom plate 1, and can slide on the bottom plate 1 under the drive of the hydraulic cylinder 6. In other possible embodiments, the slider 5 can be indirectly disposed on the bottom plate 1. For example, see Figure 1 , guide rails 3 are arranged on the bottom plate 1, and there are two guide rails 3, which are respectively located on both sides of the push plate 2; the slider 5 is slidably arranged on the guide rails 3. In the scheme of this example, the slider 5 is slidably arranged on the guide rails 3 indirectly through the guide rails 3. Compared with the method in which the slider 5 is directly arranged on the bottom plate 1, the guide rails 3 arranged in this scheme can play a guiding role and improve the movement accuracy of the slider 5 when sliding. In addition, this setting method helps to reduce the friction force when the slider 5 slides, thereby reducing the running resistance and saving energy consumption. And this method of matching the slider 5 with the guide rails 3 can improve the stability of the slider 5 when it slides, thereby helping to improve the overall running stability of the device.

[0043] As described above, the first connection end of the push ear 13 is connected to the flip shaft 12, and the first connection end of the push ear 13 is rotatably arranged in the mounting groove 501. In the solution of this embodiment, the push ear 13 can rotate with the flip shaft 12 as the rotation axis. During the rotation of the push ear 13, the flip shaft 12 is driven to rotate, thereby driving the push plate 2 to flip.

[0044] As described above, when the push ear 13 contacts the first contact surface 502, the bottom of the push plate 2 contacts the bottom plate 1. In some embodiments, when the bottom of the push plate 2 contacts the bottom plate 1, the push plate 2 is perpendicular to the bottom plate 1. In this way, the contact surface between the push plate 2 and the material can reach the maximum when pushing the material, and the pushing effect is better. Of course, in other embodiments, when the bottom of the push plate 2 contacts the bottom plate 1, the push plate 2 may not be perpendicular to the bottom plate 1. For example, the rear side surface of the push plate 2 and the bottom plate 1 may form an angle of 85°. The embodiments of the present application do not limit whether the push plate 2 is perpendicular to the bottom plate 1.

[0045] As described above, when the push ear 13 contacts the second contact surface 503, the bottom height of the push plate 2 is higher than the height of the material on the bottom plate 1. In some embodiments, when the push ear 13 contacts the second contact surface 503, the push plate 2 may be parallel to the bottom plate 1. Of course, in other possible embodiments, the push plate 2 may not be parallel to the bottom plate 1. For example, the rear side surface of the push plate 2 may be at an angle of 10° to the bottom plate 1. The embodiments of the present application are not limited to this.

[0046] The specific working principle of the solution of this embodiment is as follows:

[0047] When the driving end of the hydraulic cylinder 6 extends forward, it first pushes the push ear 13 to rotate forward until the push ear 13 contacts the first contact surface 502. At this time, the bottom of the push plate 2 contacts the bottom plate 1. The driving end of the hydraulic cylinder 6 continues to extend forward. At this time, since the push ear 13 contacts the first contact surface 502, the push ear 13 can drive the slider 5 to move forward in a straight line. In this case, the push plate 2 moves forward to push the material on the bottom plate 1 forward. After the driving end of the hydraulic cylinder 6 extends to the limit stroke, a material pushing action is completed.

[0048] When the driving end of the hydraulic cylinder 6 retracts backward, it first pushes the push ear 13 to rotate backward until the push ear 13 contacts the second contact surface 503. At this time, the bottom height of the push plate 2 is higher than the height of the material on the bottom plate 1, which can prevent the material from being pulled back when the push plate 2 moves backward. The driving end of the hydraulic cylinder 6 continues to retract backward. At this time, since the push ear 13 contacts the second contact surface 503, the push ear 13 can drive the slider 5 to move backward in a straight line. In this case, the push plate 2 moves backward. When the hydraulic cylinder 6 retracts to the starting stroke, the push plate 2 reaches the rearmost position, completing the knife retracting action.

[0049] By repeating the above-mentioned pushing and receiving actions, the material can be continuously transported forward until the material falls into the silo. For the convenience of description, the state of the push plate 2 when the push ear 13 contacts the first contact surface 502 is referred to as the pushing state, and the state of the push plate 2 when the push ear 13 contacts the second contact surface 503 is referred to as the pulling state.

[0050] Optionally, the extension speed of the driving end of the hydraulic cylinder 6 when extending forward is less than or equal to a speed threshold. The speed threshold represents the maximum speed that does not cause dust. In some embodiments, the speed threshold may be 0.025 m / s. By controlling the extension speed of the hydraulic cylinder 6, this solution can avoid dust during the pushing process, thereby avoiding secondary pollution.

[0051] The above technical solution can avoid direct contact between the driving component and the material by arranging the driving component on both sides of the push plate 2, thereby avoiding the material adhering to the driving component to cause corrosion and jamming of the driving component, which helps to improve the operation stability and service life of the device. By matching the push ear 13 with the slider 5, the push plate 2 can be controlled to flip, so that the push plate 2 can be in an appropriate position when pushing and pulling back, ensuring the stable operation of material transportation. The pushing process of this solution relies on the reciprocating forward and backward movement of the push plate 2, and the surface of the bottom plate 1 on which the material is placed is always facing upward, which can avoid the material attached to the surface falling due to the change in the direction of the surface. In addition, since the bottom of the push plate 2 of this solution is in direct contact with the bottom plate 1 when pushing the material forward, it can effectively prevent the material from adhering to the surface of the bottom plate 1, avoid the occurrence of hardening, and further improve the stability of the material transportation process. In short, the device of this solution can transport materials stably for a long time, and no human intervention is required during the transportation process, which helps to improve the efficiency of material transportation.

[0052] For example, Figure 1 As shown, there are multiple push plates 2, and multiple push plates 2 are sequentially arranged above the bottom plate 1 along the material moving direction. In this article, the material entry position is located in front of the push plate 2 arranged at the rear. The number of push plates 2 can be set according to actual needs. Figure 1 In the embodiment shown, there are three push plates 2. This solution helps to improve the material pushing efficiency by providing multiple push plates 2.

[0053] For example, Figure 2-3 As shown, the number of push ears 13 is one, and the first connecting end of the push ear 13 is arranged in the mounting groove 501 of any one of the multiple sliders 5, and the first connecting end of the push ear 13 is connected to the flip shaft 12 corresponding to the slider 5; the device also includes a swinging assembly for making multiple push plates 2 move synchronously, and the number of swinging assemblies is two groups, which are respectively arranged on both sides of the push plate 2; the swinging assembly includes a swinging block 11 and a first connecting rod 10, the number of the swinging blocks 11 corresponds to the number of the push plates 2, and the swinging blocks 11 are arranged parallel to each other; the first connecting end of each swinging block 11 is connected to the corresponding flip shaft 12, and the second connecting end of each swinging block 11 is connected to the first connecting rod 10.

[0054] As described above, the first connection end of the push ear 13 is disposed in the mounting groove 501 of any one of the plurality of sliders 5. Figure 2In a possible embodiment shown, the first connection end of the push ear 13 can be arranged in the mounting groove 501 of the slider 5 located at the front end among the multiple sliders 5. This helps to reduce the overall length of the drive assembly, thereby improving space utilization. Of course, in other embodiments not shown, the first connection end of the push ear 13 can also be arranged in the mounting groove 501 of other sliders 5. For example, it can be arranged in the mounting groove 501 of the slider 5 located at the end.

[0055] In the solution of this example, the swing assembly can be used to achieve synchronous movement of multiple push plates 2. Figure 2 The structure shown is used as an example for explanation. When the push ear 13 rotates forward, the flip shaft 12 located at the front rotates forward, driving the swing block 11 connected thereto to rotate forward with the flip shaft 12 as the rotation axis. At this time, the other swing blocks 11 rotate forward driven by the first connecting rod 10, driving the corresponding flip shaft 12 to rotate forward. In this way, the front push plate 2 can be flipped to the material pushing state. After the push plate 2 is in the material pushing state, the push ear 13 can no longer rotate forward. In this case, the flip shaft 12 located at the front and the push plate 2 connected thereto can be driven to move forward, and the swing block 11 connected to the flip shaft 12 can be moved forward synchronously. At this time, the other swing blocks 11 move forward synchronously driven by the first connecting rod 10, driving the corresponding flip shaft 12 to move forward, and then all the push plates 2 move forward synchronously. The backward rotation and pull-back process of the push plate 2 is similar to the above process and will not be repeated.

[0056] The above solution can realize synchronous movement of multiple push plates 2 by setting a swing assembly. The solution has a simple structure and helps to improve the stability of pushing materials.

[0057] For example, Figure 2 , 3 As shown, two adjacent sliders 5 are connected by a third connecting rod 15. In the solution of this example, two adjacent sliders 5 can be connected together by the third connecting rod 15. This arrangement helps to improve the overall structural strength of the device and the stability of the slider 5 during the sliding process, thereby helping the device to stably transport materials for a long time.

[0058] For example, Figure 1 As shown, the device also includes a protective cover 4, which is arranged on the outside of the driving component. The protective cover 4 can be composed of multiple plates, which will not be described in detail. By providing the protective cover 4, an independent movement space can be provided for the driving component, further preventing materials from falling onto the driving component, thereby avoiding corrosion and jamming of parts caused by materials adhering to the driving component.

[0059] For example, Fig.10As shown, a through hole 401 corresponding to the flip shaft 12 is provided on the side of the protective cover 4 close to the push plate 2, and the end of the flip shaft 12 passes through the through hole 401 and is arranged in the mounting groove 501 of the corresponding slider 5. In this case, when the flip shaft 12 moves forward and backward, the protective cover 4 can be driven to move with it. This arrangement helps to reduce the size of the protective cover 4 and save costs. And this arrangement can further prevent materials from falling onto the drive assembly.

[0060] In some embodiments, there may be a certain gap between the bottom of the protective cover 4 and the bottom plate 1. Therefore, when the protective cover 4 moves forward and backward with the flip shaft 12, the friction between the protective cover 4 and the bottom plate 1 can be avoided to generate resistance, thereby avoiding wear of parts and saving energy.

[0061] The above-mentioned scheme that the protective cover 4 moves forward and backward together with the flip shaft 12 is only an example and is not intended to limit the present application. In some other embodiments of the present application that are not shown, a slot corresponding to the flip shaft 12 can be provided on the side of the protective cover 4 close to the push plate 2, and the end of the flip shaft 12 is arranged in the mounting slot 501 of the corresponding slider 5 through the slot. The length of the slot is the same as the length of the moving path of the corresponding flip shaft 12 moving forward and backward. In this case, the flip shaft 12 is always in the slot when moving forward and backward. Therefore, the protective cover 4 can be fixedly set on the base plate 1 without moving forward and backward with the flip shaft 12, which helps to reduce the driving load of the hydraulic cylinder 6 and save energy. In some other embodiments of the present application that are not shown, the above-mentioned slots corresponding to the flip shaft 12 can be interconnected to form one slot, which can be easily processed.

[0062] For example, Fig.12 As shown, the push plate 2 includes a plate body 201 and a scraper 202, the scraper 202 is connected to the bottom of the plate body 201, and the bottom of the push plate 2 is the bottom of the scraper 202. It can be understood that the scraper 202 can be connected to the bottom of the plate body 201 by any means such as bolt connection, clamping, plugging, welding, etc. Fig.12 In the embodiment, the scraper 202 can be connected to the plate body 201 by bolt connection. Optionally, the scraper 202 can be made of plastic. The scraper 202 made of plastic can play a transition role and avoid collision caused by deformation under special circumstances.

[0063] Example 2

[0064] See also Figure 6-8The hydraulic pushing device includes: a base plate 1, a driving assembly and a pushing plate 2; the pushing plate 2 is arranged above the base plate 1, and the back side of the pushing plate 2 is connected with a flip shaft 12; there are two driving assemblies, and the two driving assemblies are respectively arranged on both sides of the pushing plate 2; the driving assembly includes a hydraulic cylinder 6, a pushing ear 13 and a sliding block 5; the sliding block 5 corresponds to the pushing plate 2 one by one; the sliding block 5 is slidably arranged on the base plate 1.

[0065] Combined with reference Figure 4 , 5 A mounting groove 501 is provided on the slider 5, and a first contact surface 502 and a second contact surface 503 are formed on the front and rear sides of the mounting groove 501 respectively; the end of the flip shaft 12 is rotatably arranged in the mounting groove 501 corresponding to the slider 5; the first connecting end of the push ear 13 is connected to the flip shaft 12, and the first connecting end of the push ear 13 is rotatably arranged in the mounting groove 501; the second connecting end of the push ear 13 is connected to the driving end of the hydraulic cylinder 6; wherein, when the push ear 13 contacts the first contact surface 502, the bottom of the push plate 2 contacts the bottom plate 1; when the push ear 13 contacts the second contact surface 503, the bottom height of the push plate 2 is higher than the material height on the bottom plate 1.

[0066] Combined with reference Figure 6 , 7 In the solution of this embodiment, there are multiple push plates 2, and the multiple push plates 2 are sequentially arranged above the bottom plate 1 along the material moving direction. Figure 6 , 7 In the embodiment shown, there are two push plates 2. The specific effect of this feature is similar to that in embodiment 1 and will not be described in detail.

[0067] Combined with reference Figure 7 , 8 In the scheme of this embodiment, the number of push ears 13 corresponds to the number of sliders 5, and the first connecting end of each push ear 13 is arranged in the mounting groove 501 of the corresponding slider 5; the driving end of the hydraulic cylinder 6 is connected to the second connecting end of any push ear 13, and the second connecting ends of two adjacent push ears 13 are connected through a second connecting rod 14.

[0068] In the solution of this embodiment, each push ear 13 is arranged parallel to each other. In this solution, the push ear 13 corresponding to each slider 5 can be used to push the corresponding slider 5 to move. Figure 7For example, when the rear push ear 13 rotates under the drive of the driving end of the hydraulic cylinder 6, the front push ear 13 also rotates synchronously due to the connection of the second connecting rod 14. After the push ear 13 contacts the first contact surface 502, the driving end of the hydraulic cylinder 6 pushes the rear push ear 13 to move forward. At the same time, due to the connection of the second connecting rod 14, the front push ear 13 also moves forward synchronously. By connecting two adjacent push ears 13 with the second connecting rod 14, this solution can facilitate the control of the movement of the push ears 13 and help improve the overall structural strength.

[0069] The above solution can realize the synchronous movement of multiple push ears 13 by connecting two adjacent push ears 13 with the second connecting rod 14, and further can control the synchronous movement of multiple push plates 2. In short, the solution has a simple structure and helps to improve the stability of pushing materials.

[0070] Combined with reference Figure 7 , 8 In the solution of this embodiment, two adjacent sliders 5 are connected by a third connecting rod 15. This feature is similar to that in embodiment 1 and will not be described in detail.

[0071] See also Figure 6 In the scheme of this embodiment, the device further includes a protective cover 4, which is arranged outside the driving assembly. In the scheme of this embodiment, the rear end of the hydraulic cylinder 6 can extend from the protective cover 4. It can be understood that since this part is far away from the material, it will not affect the protective effect of the protective cover 4 on the driving assembly. And this arrangement also helps to save costs.

[0072] See also Fig.11 In the scheme of this embodiment, a through hole 401 corresponding to the flip shaft 12 is provided on the side of the protective cover 4 close to the push plate 2, and the end of the flip shaft 12 passes through the through hole 401 and is arranged in the mounting groove 501 of the corresponding slider 5. The end of the flip shaft 12 passes through the through hole 401 and is arranged in the mounting groove 501 of the corresponding slider 5. In this case, when the flip shaft 12 moves forward and backward, it can drive the protective cover 4 to move with it. This arrangement helps to reduce the size of the protective cover 4 and save costs. And this arrangement can further prevent materials from falling onto the drive assembly.

[0073] Combined with reference Figure 6 , 7, the device of this embodiment also includes a drag plate 8, the bottom of which is in contact with the bottom plate 1; and the drag plate 8 is located behind the push plate 2 along the material moving direction, and the drag plate 8 is used to move forward and backward with the push plate 2 to clean the bottom plate 1. As mentioned above, the entry position of the material can be located in front of the push plate 2 set at the rear. Therefore, under normal circumstances, all the materials on the bottom plate 1 can be transported only by the push plate 2. However, when transporting materials, the materials are usually transported from the top of the device to the bottom plate 1 of the device. During this transportation process, some materials may splash behind the push plate 2. This solution can clean the surface of the bottom plate 1 behind the push plate 2 by arranging the drag plate 8 at the rear, that is, the completeness of the cleaning of the entire surface of the bottom plate 1 is guaranteed, and blind spot cleaning can be achieved.

[0074] In such Figure 6 , 7 In the embodiment shown, the carriage 8 is connected to the flip shaft 12 on the rearmost push plate 2 via the connecting plate 9, so that when the push plate 2 moves forward and backward, the connecting plate 9 can be driven to move accordingly. Fig. 9 As shown, a groove 901 can be formed on one side of the connecting plate 9, and the connecting plate 9 can be connected to the flip shaft 12 through the groove 901, and the other side of the connecting plate 9 can be connected to the drag plate 8 by any method such as bolt connection, clamping, plug-in, welding, etc.

[0075] In an embodiment not shown in the present application, when the above-mentioned solution in which the protective cover 4 can move together with the flip shaft 12 is adopted, the carriage 8 can also be directly connected to the protective cover 4 .

[0076] The specific structure of the push plate 2 in this embodiment is similar to that in Embodiment 1 and will not be described in detail.

[0077] In the description of the present application, it should be understood that the orientation or positional relationship indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0078] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0079] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, components, parts and / or combinations thereof.

[0080] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0081] The present application has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and illustration, and are not intended to limit the present application to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the present application, and these variations and modifications all fall within the scope of protection claimed by the present application. The scope of protection of the present application is defined by the attached claims and their equivalents.

Claims

1. A hydraulic pushing device, characterized in that: include: A bottom plate, a driving assembly and a push plate; the push plate is arranged above the bottom plate, and a flip shaft is connected to the back side of the push plate; there are two driving assemblies, which are respectively arranged on both sides of the push plate; The driving assembly includes a hydraulic cylinder, a push ear and a slider; the slider corresponds to the push plate one by one; the slider is slidably arranged on the bottom plate; a mounting groove is arranged on the slider, and a first contact surface and a second contact surface are formed on the front and rear sides of the mounting groove respectively; the end of the flip shaft is rotatably arranged in the mounting groove of the corresponding slider; the first connecting end of the push ear is connected to the flip shaft, and the first connecting end of the push ear is rotatably arranged in the mounting groove; the second connecting end of the push ear is connected to the driving end of the hydraulic cylinder; When the push ear contacts the first contact surface, the bottom of the push plate contacts the bottom plate; when the push ear contacts the second contact surface, the height of the bottom of the push plate is higher than the height of the material on the bottom plate.

2. The hydraulic pushing device according to claim 1, characterized in that: There are multiple push plates, and the multiple push plates are arranged above the bottom plate in sequence along the material moving direction.

3. The hydraulic pushing device according to claim 2, characterized in that: The number of the push ear is one, the first connection end of the push ear is arranged in the mounting groove of any one of the plurality of slide blocks, and the first connection end of the push ear is connected to the flip shaft corresponding to the slide block; The device also includes a swing assembly for making the plurality of push plates move synchronously, wherein the swing assembly is in two groups and is respectively arranged on both sides of the push plate; The swing assembly includes a swing block and a first connecting rod. The number of the swing blocks corresponds to the number of the push plates, and the swing blocks are arranged parallel to each other. The first connecting end of each swing block is connected to the corresponding flip shaft, and the second connecting end of each swing block is connected to the first connecting rod.

4. The hydraulic pushing device according to claim 2, characterized in that: The number of the push ears corresponds to the number of the sliders, and the first connecting end of each push ear is arranged in the mounting groove of the corresponding slider; The driving end of the hydraulic cylinder is connected to the second connecting end of any one of the pushing ears, and the second connecting ends of two adjacent pushing ears are connected via a second connecting rod.

5. The hydraulic pushing device according to claim 3 or 4, characterized in that: Two adjacent sliding blocks are connected via a third connecting rod.

6. The hydraulic pushing device according to any one of claims 1 to 4, characterized in that: The bottom plate is provided with guide rails, and the number of the guide rails is two, which are respectively located on both sides of the push plate; the sliding block is slidably arranged on the guide rails.

7. The hydraulic pushing device according to any one of claims 1 to 4, characterized in that: It also includes a protective cover, which is arranged on the outside of the driving component.

8. The hydraulic pushing device according to claim 7, characterized in that: The protective cover is provided with a through hole corresponding to the flip shaft one by one on one side close to the push plate, and the end of the flip shaft passes through the through hole and is arranged in the mounting groove of the corresponding sliding block.

9. The hydraulic pushing device according to any one of claims 1 to 4, characterized in that: It also includes a drag plate, the bottom of which is in contact with the bottom plate; and the drag plate is located behind the push plate along the material moving direction, and the drag plate is used to move back and forth following the push plate to clean the bottom plate.

10. The hydraulic pushing device according to any one of claims 1 to 4, characterized in that: The push plate comprises a plate body and a scraper, the scraper is connected to the bottom of the plate body, and the bottom of the push plate is the bottom of the scraper.

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