Hoisting device for loading and unloading equipment

Abstract

The invention relates to the technical field of grab buckets, in particular to a hoisting device for loading and unloading equipment, which comprises a hoisting seat, an openable grab bucket structure is arranged at the lower end of the hoisting seat, the grab bucket structure comprises two branch buckets which can be closed close to each other and opened away from each other, the two branch buckets are defined to be positioned on the left side and the right side of the hoisting seat, and a driving assembly is arranged between the hoisting seat and the grab bucket structure. A turnover bottom plate is arranged at the bottom of the branch hopper, and a material removing air cylinder is arranged between the bottom plate and the lifting base and used for driving the bottom plate to turn over so as to remove attachments on the bottom plate through inertia. An arc-shaped frame is arranged on the periphery of the bottom plate; a barrier strip matched with the bottom plate is arranged at the upper end of the arc-shaped frame; according to the grab bucket structure, the turnover bottom plate controlled by the air cylinder is arranged at the bottom of the grab bucket structure, so that attachments on the bottom plate can be automatically removed in the operation process of the grab bucket structure, the situation that the loading capacity of the grab bucket structure is reduced due to adhesion of materials in the grab bucket structure can be avoided, and the operation efficiency of equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grab buckets, and in particular to a hoisting device for loading and unloading equipment. Background Art

[0002] Grab bucket is a tool commonly used for loading, unloading and transporting materials. It can work in various harsh environments. Grab bucket can be used for foundation pit excavation, deep pit excavation and loading of mud, sand, coal and gravel. In addition, it can also be used for excavation and loading on one side of a ditch or restricted space. It is suitable for a variety of scenarios. It can effectively load, unload, stack and transport materials. The design and function of the grab bucket enable it to adapt to different working conditions and material types, so it is widely used in many industries.

[0003] For example, a Chinese patent document with authorization announcement number CN103981941B discloses a sludge grab, which includes a first grab and a second grab rotatably connected to a mounting seat, and an operating rod is provided at the upper end of the mounting seat; the operating rod is provided with an operating control device, including a handle, a pull rod, a connecting seat and a handle positioning mechanism, the pull rod is arranged in the hollow inner cavity of the operating rod, the pull rod connects the handle and the connecting seat, and the connecting seat is sleeved and installed in the inner cavity of the mounting seat; the sludge grab has the advantage of easy operation.

[0004] However, the above grab also has certain defects: due to the strong adhesion of silt and other sticky materials, the material is easy to adhere to the inside of the grab during use, thereby reducing the amount of material carried by the grab each time the grab operates. At the same time, the grab carrying mud will increase the power consumption of the equipment, reducing the working efficiency of the grab. Summary of the invention

[0005] The invention provides a hoisting device for loading and unloading equipment, so as to solve the technical problem that the attached objects are difficult to clean during the grab operation, resulting in reduced operation efficiency.

[0006] In order to solve the above problems, the hoisting device for loading and unloading equipment provided by the present invention adopts the following technical solutions: A lifting device for loading and unloading equipment comprises a lifting seat, a grab structure which can be opened and closed at the lower end of the lifting seat, the grab structure comprising two sub-buckets which can be closed and opened and closed, the two sub-buckets are defined to be located on the left and right sides of the lifting seat, and a driving assembly is provided between the lifting seat and the grab structure; A reversible bottom plate is provided at the bottom of the bucket, and a material removal cylinder is provided between the bottom plate and the hanging seat. The material removal cylinder is used to drive the bottom plate to flip so as to remove the attachments on the bottom plate by inertia; the outer periphery of the bottom plate is provided with an arc frame, and the upper end of the arc frame is provided with a baffle bar that cooperates with the bottom plate.

[0007] Its beneficial effect is that by arranging a reversible bottom plate controlled by a cylinder at the bottom of the grab structure, the grab structure can automatically remove attachments on the bottom plate during operation, thereby avoiding the situation where the loading capacity of the grab structure is reduced due to material adhesion inside the grab structure, thereby improving the operating efficiency of the equipment.

[0008] Furthermore, the suspension seat includes a rectangular top plate, and fixed plates extending up and down are arranged in parallel on the front and rear sides of the top plate. The area between the two fixed plates is defined as the inner side, and the outer lower ends of the two fixed plates have two cylindrical protrusions, which are used to support the grab bucket structure.

[0009] Furthermore, the dividing bucket includes two fan-shaped plates arranged in parallel front and back, the tip of the fan-shaped plate is rotatably mounted on the protrusion, the arc end of the fan-shaped plate faces downward, the arc frame is fixedly connected to the fan-shaped plate, and the middle part of the front and rear sides of the arc frame has an arc-shaped protrusion radially outward along the arc.

[0010] Furthermore, the bottom plate is an arc-shaped plate extending forward and backward, the outer periphery of the bottom plate is joined with the arc-shaped frame to form the bottom of the bucket, and the lower end of the bottom plate has an arc-shaped flange corresponding to the arc-shaped protrusion; a rotating shaft is passed between the arc-shaped protrusions on the front and rear sides, and the bottom plate is sleeved on the rotating shaft.

[0011] Furthermore, the front side of the upper end of the bottom plate on the left side and the rear side of the upper end of the bottom plate on the right side both have a fixing seat, the fixing seat includes two rectangular fixing rods extending up and down and arranged in parallel front and back, and a fixing shaft extending front and back is provided between the two fixing rods.

[0012] Furthermore, the outer side of the fixed plate has a rectangular adjustment block extending up and down, the adjustment block and the fixed plate where it is located have a rectangular slot connected front to back and extending up and down, and the adjustment block is provided with a limit shaft extending up and down in the slot.

[0013] The beneficial effect is that the setting of the adjustment block enables the equipment to adjust the cylinder position according to the performance of the elastic cylinder, thereby avoiding the situation where the material removal cylinder runs poorly due to performance degradation.

[0014] Furthermore, a rectangular clamping block is provided on the inner side of the two fixed plates, and the lower end of the clamping block has a transmission groove extending up and down, and a transmission shaft extending front and back is provided in the transmission groove; the outer sides of the two clamping blocks have a rectangular support plate extending up and down and fitting with the fixed plate, and the outer side of the support plate has a rectangular slider, which is sleeved on the limit shaft to limit the up and down movement of the clamping block in the clamping groove.

[0015] The beneficial effect is that the provision of the support plate improves the stability of the card block moving in the card slot and improves the fluency of the use of the adjustment block.

[0016] Furthermore, the material removal cylinder is located between the front fixed shaft and the front transmission shaft and between the rear fixed shaft and the rear transmission shaft. The material removal cylinder is an elastic cylinder, and the material removal cylinder is used to drive the bottom plate to rotate around the rotating shaft.

[0017] The beneficial effect is that, compared with the active cylinder, the use of the elastic cylinder as the material removal cylinder to drive the base plate to rotate can reduce the probability of failure and reduce maintenance costs.

[0018] Furthermore, two upper supports are horizontally provided on the front and rear sides of the top plate, lower supports are provided on the front and rear sides of the sub-bucket, and the driving assembly includes a driving cylinder, which is located between the upper support and the lower support, and is used to drive the sub-bucket to complete the opening and closing of the grab structure.

[0019] Furthermore, the sector plate has a circular reinforcement block protruding toward the outside of the bucket at the connection position with the hanging seat, so as to enhance the strength of the connection between the grab bucket structure and the hanging seat.

[0020] The beneficial effect is that the provision of the reinforcing block enhances the strength of the connection portion between the sub-bucket and the hanging seat, thereby increasing the service life of the grab bucket structure.

[0021] The beneficial effects of the lifting device for loading and unloading equipment provided by the present invention are: 1. By setting a reversible bottom plate controlled by a cylinder at the bottom of the grab structure, the grab structure can automatically remove the attachments on the bottom plate during operation, thereby avoiding the situation where the loading capacity of the grab structure is reduced due to the adhesion of materials inside the grab structure, thereby improving the operating efficiency of the equipment.

[0022] 2. Compared with active cylinders, using elastic cylinders as removal cylinders to drive the base plate to rotate can reduce the probability of failure and reduce maintenance costs.

[0023] 3. The setting of the adjustment block enables the equipment to adjust the cylinder position according to the performance of the elastic cylinder, avoiding the situation where the removal cylinder runs poorly due to performance degradation.

[0024] 4. The setting of the reinforcement block enhances the strength of the connection between the bucket and the suspension seat, and increases the service life of the grab bucket structure.

[0025] 5. The setting of the support plate improves the stability of the card block moving in the card slot and improves the smoothness of the use of the adjustment block. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 The overall structure of the lifting device for loading and unloading equipment Figure 1 ; Figure 2 The overall structure of the lifting device for loading and unloading equipment Figure 2 ; Figure 3 for Figure 1 The structural schematic diagram of the suspension seat shown; Figure 4 for Figure 1 The structural schematic diagram of the card block shown; Figure 5 for Figure 1 The structural schematic diagram of the bucket shown; Figure 6 for Figure 1 Schematic diagram of the structure of the base plate shown.

[0027] Description of reference numerals: 1. Suspension seat; 11. Top plate; 111. Upper support; 112. Shaft body; 12. Fixing plate; 121. Bump; 122. Adjustment block; 123. Slot; 124. Limiting shaft; 125. Block; 126. Transmission slot; 127. Transmission shaft; 128. Support plate; 129. Slider; 2. Grab bucket structure; 21. Divider bucket; 211. Fan-shaped plate; 212. Arc frame; 2121. Arc-shaped convex block; 2122. Baffle bar; 213. Bottom plate; 2131. Fixed seat; 2132. Fixed rod; 2133. Fixed shaft; 2134. Flange; 214. Rotating shaft; 215. Reinforcement block; 216. Lower support; 2161. Drive shaft; 3. Driving assembly; 31. Material removal cylinder; 311. Cylinder barrel; 312. Cylinder pull rod; 32. Driving cylinder; 321. Cylinder body; 322. Push rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] The main idea of ​​the present invention is to provide a reversible bottom plate 213 controlled by a cylinder at the bottom of the grab structure 2, so that the grab structure 2 can automatically remove attachments on the bottom plate 213 during operation, thereby avoiding the situation where the loading capacity of the grab structure 2 is reduced due to the adhesion of materials inside the grab structure 2, thereby improving the operating efficiency of the equipment.

[0030] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0031] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0032] Embodiment 1 of a lifting device for loading and unloading equipment provided by the present invention: like Figures 1 to 6 As shown, the lifting device for loading and unloading equipment mainly includes a hanging seat 1, a grab structure 2 and a driving assembly 3. The grab structure 2 is located at the lower end of the hanging seat 1. The grab structure 2 includes two sub-buckets 21. The sub-buckets 21 are defined to be located on the left and right sides of the hanging seat 1. The driving assembly 3 is located between the grab structure 2 and the hanging seat 1 to drive the grab structure 2 to open and close and clean the attachments in the grab structure 2.

[0033] The following first introduces the suspension seat 1. The upper end of the suspension seat 1 has a horizontally placed rectangular top plate 11, and the lower end of the top plate 11 has trapezoidal fixed plates 12 extending up and down on both the front and rear sides. The two fixed plates 12 are arranged in parallel front and back, and the area between the two fixed plates 12 is defined as the inner side. The lower ends of the outer sides of the two fixed plates 12 have two cylindrical protrusions 121, and the protrusions 121 are connected to the grab structure 2 to support the grab structure 2.

[0034] The top plate 11 has two upper supports 111 on the front and rear sides, the upper supports 111 are rectangular blocks, and the lower ends of the upper supports 111 have shafts 112 for fixing the drive assembly 3; the outer side of the fixed plate 12 has a rectangular adjustment block 122 extending up and down, the adjustment block 122 and the fixed plate 12 on which it is located have a rectangular slot 123 connected front to back and extending up and down, and the adjustment block 122 also has a cylindrical limiting shaft 124 extending up and down in the slot 123.

[0035] In addition, the inner sides of the two fixed plates 12 are each provided with a rectangular block 125, and the lower end of the block 125 has a rectangular transmission groove 126 extending up and down, and the transmission groove 126 has a transmission shaft 127 extending forward and backward, and the transmission shaft 127 is used to connect the drive component 3; there is a support plate 128 extending up and down between the block 125 and the fixed plate 12, and the support plate 128 is in contact with the fixed plate 12; the support plate 128 has a rectangular slider 129 extending outward in the slot 123, and the end of the slider 129 is sleeved on the limit shaft 124 to limit the block 125 from moving up and down in the slot 123.

[0036] The following is an introduction to the bucket 21. The bucket 21 includes two fan-shaped plates 211 arranged in parallel in front and back. The tips of the two fan-shaped plates 211 are rotatably sleeved on the fixed blocks of the front and rear fixed plates 12. In addition, the tips of the fan-shaped plates 211 have a circular reinforcement block 215 protruding toward the outside of the bucket 21 to enhance the strength of the connection position between the grab bucket structure 2 and the hanger 1; the arc ends of the fan-shaped plates 211 face downward, and an arc frame 212 fixedly connected to the arc ends of the fan plates 211 is provided between the two fan-shaped plates 211. A bottom plate 213 is provided in the arc frame 212. The bottom plate 213 is an arc plate extending in the front and rear directions. The bottom plate 213 The outer periphery of the arc frame 212 is engaged with the arc frame 212 and together constitutes the bottom of the bucket 21. The upper end of the arc frame 212 has a front and rear extending baffle 2122 that cooperates with the bottom plate 213, so that the attachments in the bucket 21 are removed by causing the bottom plate 213 and the baffle 2122 to collide with each other. The lower end of the bottom plate 213 has an arc flange 2134 corresponding to the arc protrusion 2121; the middle part of the front and rear sides of the arc frame 212 has an arc protrusion 2121 radially outward along the arc, and a rotating shaft 214 is passed between the arc protrusions 2121. The bottom plate 213 is sleeved on the rotating shaft 214 to be turned over under the drive of the driving component 3.

[0037] The upper end of the bottom plate 213 also has a fixed seat 2131, which is respectively located on the front side of the left bottom plate 213 and the rear side of the right bottom plate 213. The fixed seat 2131 includes two rectangular fixed rods 2132 extending up and down and arranged in parallel front and back. A fixed shaft 2133 extending front and back is provided at the upper end between the fixed rods 2132. The fixed shaft 2133 is used to connect the drive component 3 to drive the bottom plate 213 to flip; in addition, the fan-shaped plates 211 at the front and rear ends of the bucket 21 are provided with lower supports 216, and the lower supports 216 have a drive shaft 2161 extending front and back for connecting the drive component 3 to drive the bucket 21 to open and close.

[0038] The driving component 3 is introduced below. The driving component 3 includes a material removal cylinder 31 and a driving cylinder 32. The material removal cylinder 31 is an elastic cylinder, which is installed between the fixed shaft 2133 and the transmission shaft 127. The material removal cylinder 31 includes a cylindrical cylinder barrel 311 and a cylinder pull rod 312. The upper end of the cylinder barrel 311 is sleeved on the transmission shaft 127, and the lower end of the cylinder pull rod 312 is sleeved on the fixed shaft 2133; the driving cylinder 32 is an active cylinder, which is installed between the shaft body 112 and the driving shaft 2161. The driving cylinder 32 includes a cylindrical cylinder body 321 and a push rod 322. The upper end of the cylinder body 321 is sleeved on the shaft body 112, and the lower end of the push rod 322 is sleeved on the driving shaft 2161.

[0039] The working principle of the hoisting device is as follows: during the operation, the grab structure 2 is first opened to the left and right sides of the hanger 1 under the drive of the driving cylinder 32. At this time, the cylinder pull rod 312 of the material removal cylinder 31 is pushed into the cylinder barrel 311 under the pushing action of the grab structure 2. When the grab structure 2 is fully opened, the cylinder pull rod 312 is pushed outward from the cylinder barrel 311 under the action of the internal potential energy, so that the cylinder pull rod 312 drives the bottom plate 213 to quickly flip around the rotating shaft 214 At this time, the attachments on the bottom plate 213 are cleared under the action of inertia; then, the grab structure 2 is closed toward the lower end of the suspension seat 1 under the drive of the driving cylinder 32. During the closing process, the cylinder pull rod 312 is first pushed back into the cylinder barrel 311, and then the bottom plate 213 is pushed back into the arc frame 212 under the action of the internal potential energy of the cylinder barrel 311. At this time, the bottom plate 213 collides with the baffle bar 2122 on the arc frame 212, and the attachments on the grab structure 2 are cleared again.

[0040] Since the material removal cylinder 31 is an elastic cylinder, the effective stroke of the cylinder may change due to performance degradation during long-term use. At this time, the slider 129 in the adjustment block 122 can be adjusted according to the effective stroke of the cylinder to avoid poor operation due to cylinder performance degradation.

[0041] Embodiment 2 of a lifting device for loading and unloading equipment provided by the present invention: The main difference between it and Example 1 is: In Example 1, the top plate is a rectangular plate.

[0042] In this embodiment, the top plate is a trapezoidal or polygonal plate.

[0043] Embodiment 3 of a lifting device for loading and unloading equipment provided by the present invention: The main difference between it and Example 1 is: In embodiment 1, the sub-bucket is penetrated on the fixed plate through the protrusion.

[0044] In this embodiment, the sub-bucket is penetrated on the fixed plate through the shaft.

[0045] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0046] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A lifting device for loading and unloading equipment, comprising a lifting seat, a grab structure that can be opened and closed at the lower end of the lifting seat, the grab structure comprising two sub-buckets that can be closed and opened and closed, the two sub-buckets are defined to be located on the left and right sides of the lifting seat, a driving assembly is provided between the lifting seat and the grab structure, and the characteristics are: A reversible bottom plate is provided at the bottom of the bucket, and a material removal cylinder is provided between the bottom plate and the hanging seat. The material removal cylinder is used to drive the bottom plate to flip so as to remove the attachments on the bottom plate by inertia; the outer periphery of the bottom plate is provided with an arc frame, and the upper end of the arc frame is provided with a baffle bar that cooperates with the bottom plate.

2. The lifting device for loading and unloading equipment according to claim 1, characterized in that: The suspension seat includes a rectangular top plate, and fixed plates extending up and down are arranged in parallel on the front and rear sides of the top plate. The inner side is defined as the area between the two fixed plates. The lower ends of the outer sides of the two fixed plates are each provided with two cylindrical protrusions, which are used to support the grab bucket structure.

3. The lifting device for loading and unloading equipment according to claim 2, characterized in that: The bucket includes two fan-shaped plates arranged in parallel front and back, the tips of the fan-shaped plates are rotatably sleeved on the protrusions, the arc ends of the fan-shaped plates face downward, the arc frame is fixedly connected to the fan-shaped plates, and the middle parts of the front and rear sides of the arc frame are provided with arc-shaped protrusions radially outward along the arc.

4. The lifting device for loading and unloading equipment according to claim 3, characterized in that: The bottom plate is an arc-shaped plate extending forward and backward, the outer periphery of the bottom plate is connected with the arc-shaped frame to form the bottom of the bucket, and the lower end of the bottom plate has an arc-shaped flange corresponding to the arc-shaped protrusion; a rotating shaft is passed between the arc-shaped protrusions on the front and rear sides, and the bottom plate is sleeved on the rotating shaft.

5. The lifting device for loading and unloading equipment according to claim 4, characterized in that: The front side of the upper end of the bottom plate on the left side and the rear side of the upper end of the bottom plate on the right side are both provided with fixing seats, the fixing seats include two rectangular fixing rods extending up and down and arranged in parallel front and back, and a fixing shaft extending front and back is provided between the two fixing rods.

6. The lifting device for loading and unloading equipment according to claim 5, characterized in that: The outer side of the fixed plate is provided with a rectangular adjustment block extending up and down, the adjustment block and the fixed plate where it is located have a rectangular slot connected front to back and extending up and down, and the adjustment block is provided with a limit shaft extending up and down in the slot.

7. The lifting device for loading and unloading equipment according to claim 6, characterized in that: A rectangular block is provided on the inner side of the two fixed plates, and a transmission groove extending up and down is provided at the lower end of the block, and a transmission shaft extending front and back is provided in the transmission groove; the outer sides of the two blocks are provided with a rectangular support plate extending up and down and fitting with the fixed plate, and a rectangular slider is provided on the outer side of the support plate, and the slider is sleeved on the limit shaft to limit the block from moving up and down in the slot.

8. The lifting device for loading and unloading equipment according to claim 7, characterized in that: The material removal cylinder is located between the front fixed shaft and the front transmission shaft and between the rear fixed shaft and the rear transmission shaft. The material removal cylinder is an elastic cylinder and is used to drive the bottom plate to rotate around the rotating shaft.

9. The lifting device for loading and unloading equipment according to claim 8, characterized in that: Two upper supports are horizontally provided on the front and rear sides of the top plate, lower supports are provided on the front and rear sides of the sub-bucket, and the driving assembly includes a driving cylinder, which is located between the upper support and the lower support, and is used to drive the sub-bucket to complete the opening and closing of the grab structure.

10. The lifting device for loading and unloading equipment according to claim 9, characterized in that: The sector plate is provided with a circular reinforcing block protruding toward the outside of the bucket at the connection position with the hanging seat, so as to enhance the strength of the connection between the grab bucket structure and the hanging seat.

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