Side dumping device for engineering machinery and engineering machinery

Abstract

The utility model relates to a side dumping device for engineering machinery, which comprises a side dumping bucket (1), a bracket (2) and a side dumping oil cylinder (3), the side dumping oil cylinder is mounted between the side dumping bucket and the bracket, and the side dumping bucket comprises a first hinge seat (11) positioned at the left end of the side dumping bucket and a second hinge seat (12) positioned at the right end of the side dumping bucket; the bracket (2) comprises a first hinge mechanism (4) arranged on the left side of the bracket (2) and a second hinge mechanism (5) arranged on the right side of the bracket (2). The side unloading hopper is hinged to the bracket in an automatic and detachable mode through the cooperation of the first hinge seat (11) and the first hinge mechanism (4) and the cooperation of the second hinge seat (12) and the second hinge mechanism (5), so that the unloading direction of the side unloading hopper can be rapidly switched. The utility model further provides engineering machinery comprising the side dumping device.

Description

Technical Field

[0001] The utility model relates to the field of construction machinery, in particular to a side unloading device for construction machinery capable of quickly switching the unloading direction and a construction machinery including such a side unloading device. Background Art

[0002] A loader is an earthwork construction machinery widely used in construction projects such as highways, railways, buildings, hydropower, ports, mines, etc. It uses a bucket to shovel bulk materials such as soil, sand, gravel, lime, coal, etc., and can also perform light shoveling operations on ores, hard soil, etc. The bucket of the loader is installed on the front frame through mechanisms such as a boom, a swing arm, and a connecting rod. The lifting of the bucket can be achieved by operating the boom cylinder, and the flipping of the bucket can be achieved by operating the tilt cylinder.

[0003] A side unloading loader is mainly used for construction operations in narrow areas such as tunnels and underground mines. Most of the currently commercially available side unloading devices can only tilt to one side, or the unloading direction needs to be manually adjusted after the machine stops. However, during the construction process in tunnels and underground mines, vehicles may be needed to be loaded on both sides of the loader. This requires the side unloading loader to be able to quickly switch the unloading direction. Summary of the Utility Model

[0004] In order to overcome at least one aspect of the above problems, the utility model provides a side unloading device for construction machinery, such as a loader, capable of quickly switching the unloading direction.

[0005] Therefore, the utility model provides a side unloading device for construction machinery, which includes a side unloading bucket, a bracket, and a side unloading cylinder. The side unloading cylinder is installed between the side unloading bucket and the bracket. The side unloading bucket includes a first hinge seat at its left end and a second hinge seat at its right end; the bracket includes a first hinge mechanism provided on its left side and a second hinge mechanism provided on its right side; wherein the side unloading bucket is detachably hinged to the bracket through the cooperation of the first hinge seat and the first hinge mechanism and the cooperation of the second hinge seat and the second hinge mechanism, so as to be able to quickly switch the unloading direction of the side unloading bucket.

[0006] According to the above side unloading device of the utility model, since both ends of the side unloading bucket are detachably connected to the bracket, the unloading direction of the side unloading bucket can be quickly switched without stopping the vehicle.

[0007] According to a preferred embodiment of the present utility model, the first hinge mechanism may include a left hinge seat, a first hinge pin, and a first driving mechanism. The first driving mechanism is configured to drive the first hinge pin to move between a first position and a second position. In the first position, the first hinge pin is inserted into the left hinge seat to keep the first hinge seat connected to the left hinge seat. In the second position, the first hinge pin is partially withdrawn from the left hinge seat to enable the first hinge seat to move away from the left hinge seat. The second hinge mechanism may include a right hinge seat, a second hinge pin, and a second driving mechanism. The second driving mechanism is configured to drive the second hinge pin to move between a first position and a second position. In the first position, the second hinge pin is inserted into the right hinge seat to keep the second hinge seat connected to the right hinge seat. In the second position, the second hinge pin is partially withdrawn from the right hinge seat to enable the second hinge seat to move away from the right hinge seat.

[0008] According to a preferred embodiment of the present utility model, both the first driving mechanism and the second driving mechanism are hydraulic cylinders. One end of the hydraulic cylinder, such as the cylinder block of the hydraulic cylinder, is connected to the main body of the bracket, and the other end, such as the piston rod, is connected to the corresponding hinge pin. In the above configuration, by using a hydraulic cylinder, such as a hydraulic cylinder with a small stroke, automatic insertion and extraction of the hinge pin can be achieved, thereby enabling automatic switching of the discharging direction of the side-dumping bucket.

[0009] In one embodiment of the present utility model, the bracket may include a plurality of cross beams and a pair of left vertical plates fixedly connected, such as welded together, to the plurality of cross beams, namely a first left vertical plate and a second left vertical plate; a pair of intermediate vertical plates, namely a first intermediate vertical plate and a second intermediate vertical plate; and a pair of right vertical plates, namely a first right vertical plate and a second right vertical plate. The first left vertical plate and the second left vertical plate may be connected to the first boom of the construction machinery through, for example, a left pin shaft. The first right vertical plate and the second right vertical plate may be connected to the second boom of the construction machinery through, for example, a right pin shaft. The first intermediate vertical plate and the second intermediate vertical plate may be connected to the rocker of the construction machinery through an intermediate pin shaft.

[0010] In one embodiment, the left hinge seat may be configured to be fixedly connected to, for example, a left upper ear plate and a left lower ear plate welded to the outer side of the first left vertical plate. The left upper ear plate and the left lower ear plate are spaced apart parallel to each other and perpendicular to the first left vertical plate. The left upper ear plate has a left upper hole, and the left lower ear plate has a left lower hole aligned with the left upper hole to receive the first hinge pin. The right hinge seat is configured to be fixedly connected to a right upper ear plate and a right lower ear plate on the outer side of the first right vertical plate. The right upper ear plate and the right lower ear plate are spaced apart parallel to each other and perpendicular to the first right vertical plate. The right upper ear plate has a right upper hole, and the right lower ear plate has a right lower hole aligned with the right upper hole to receive the second hinge pin.

[0011] According to a preferred embodiment of the present utility model, the first hinge seat is configured to be fixedly connected, for example, welded to the first upper ear plate and the first lower ear plate of the side discharge hopper. The first upper ear plate and the first lower ear plate are spaced apart parallel to each other. The first upper ear plate is provided with a first upper ear plate hole, and the first lower ear plate is provided with a first lower ear plate hole aligned with the first upper ear plate hole. When the first hinge seat is connected to the left hinge seat through a first hinge pin, the first upper ear plate is inserted between the left upper ear plate and the left lower ear plate, and the first lower ear plate is located below the left lower ear plate. The second hinge seat is configured to be fixedly connected, for example, welded to the second upper ear plate and the second lower ear plate of the side discharge hopper. The second upper ear plate and the second lower ear plate are spaced apart parallel to each other. The second upper ear plate is provided with a second upper ear plate hole, and the second lower ear plate is provided with a second lower ear plate hole aligned with the second upper ear plate hole. When the second hinge seat is connected to the right hinge seat through a second hinge pin, the second upper ear plate is inserted between the right upper ear plate and the right lower ear plate, and the second lower ear plate is located below the right lower ear plate.

[0012] In one embodiment, the first hinge seat and the second hinge seat on the discharge hopper, and the left hinge seat and the right hinge seat on the bracket are configured to have a double-ear plate form, which is beneficial to achieving a more stable and firm connection. However, it should be understood that the first hinge seat and the second hinge seat can also be configured in other suitable forms, such as a single-ear plate form, which is also covered by the protection scope of this application.

[0013] In a preferred embodiment of the present utility model, a first oil cylinder mounting seat is provided at the middle position of the top of the side discharge hopper, and a second oil cylinder mounting seat is provided at the middle position of the top of the bracket. One end of the side discharge oil cylinder, such as the oil cylinder body, is connected to the first oil cylinder mounting seat, and the other end, such as the piston rod, is connected to the second oil cylinder mounting seat. It is advantageous to arrange the side discharge oil cylinder at the middle position between the bracket and the discharge hopper, which can conveniently achieve two-way side discharge.

[0014] In a preferred embodiment of the present utility model, it is advantageous that first buffer pads are provided at the positions where the first left vertical plate and the second left vertical plate, and the first right vertical plate and the second right vertical plate are to contact the side discharge hopper, and second buffer pads are provided at the corresponding positions of the side discharge hopper. By providing the buffer pads, a good shock absorption and buffering effect can be achieved, and the service life of the side discharge device can be improved.

[0015] In a preferred embodiment, the first upper ear plate, the first lower ear plate, the second upper ear plate and the second lower ear plate are configured to have the same shape and each have an arc-shaped convex portion. Advantageously, a first positioning member is fixedly connected, such as welded, between the upper left ear plate and the lower left ear plate and on the lower side of the lower left ear plate; a second positioning member is fixedly connected between the upper right ear plate and the lower right ear plate and on the lower side of the lower right ear plate; wherein both the first positioning member and the second positioning member have an arc-shaped concave portion, and the inner diameter of the arc-shaped concave portion is the same as the outer diameter of the arc-shaped convex portion. In this way, when the side dump bucket is to be closed with the bracket, that is, when the first hinge seat is to be connected to the left hinge seat or the second hinge seat is to be connected to the right hinge seat, the first positioning member can position and center the first upper ear plate and the first lower ear plate, and the second positioning member can position and center the second upper ear plate and the second lower ear plate, which can facilitate the insertion of the first hinge shaft and the second hinge shaft to ensure the accuracy during automatic commutation.

[0016] According to a preferred embodiment of the present invention, a first limiting plate is provided at the left hinge seat, and a second limiting plate is provided at the right hinge seat to limit the opening angle between the side dump bucket and the bracket to protect the side dump oil cylinder.

[0017] In a preferred embodiment of the present invention, the side dump device may further include a control device configured to: when discharging to the left is required, control the first driving mechanism to move the first hinge pin to the first position, and at the same time control the second driving mechanism to move the second hinge pin to the second position, so that the side dump bucket can pivot to the left around the first hinge axis; when discharging to the right is required, control the first driving mechanism to move the first hinge pin to the second position, and at the same time control the second driving mechanism to move the second hinge pin to the first position, so that the side dump bucket can pivot to the right around the second hinge axis. The control device can be arranged in the cab, for example. The driver only needs to operate the control device inside the cab to realize the switching of the side dump direction by controlling the telescoping of the hydraulic cylinder, which has a high degree of automation, reduces the labor intensity of the staff, and has a high operation efficiency.

[0018] The present invention provides a construction machine, which includes a first boom, a second boom, a rocker and the above-mentioned side dump device for the construction machine.

[0019] The beneficial effects of the side dump device for the construction machine according to the present invention are at least as follows: the discharging direction of the side dump can be quickly switched without stopping the vehicle; the driver only needs to press the switch inside the cab to realize the switching of the side dump direction by controlling the telescoping of the oil cylinder, which has a high degree of automation, small labor intensity of the staff, and high operation efficiency; buffer pads and positioning members such as centering positioning members are provided, which can well ensure the accuracy during automatic commutation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The features and advantages of the present utility model will be clearly understood from the following detailed description provided with reference to the accompanying drawings. It should be understood that the following drawings are merely schematic and not necessarily drawn to scale, and thus should not be considered as limiting the present utility model, where:

[0021] Figure 1 A perspective view showing an embodiment of a side unloading device for a loader according to the present utility model;

[0022] Figure 2 A view showing the right end of the side unloading bucket of the side unloading device moving away from the bracket according to the present utility model;

[0023] Figure 3 A perspective view showing the side unloading bucket of the side unloading device according to the present utility model;

[0024] Figure 4 A perspective view showing the bracket of the side unloading device according to the present utility model;

[0025] Figure 5 A perspective view showing another perspective of the bracket of the side unloading device according to the present utility model; and

[0026] Figure 6 A perspective view showing yet another perspective of the bracket of the side unloading device according to the present utility model. Detailed implementation

[0027] The embodiments of the present utility model will be described below with reference to the accompanying drawings. In the following description, many specific details are set forth in order to enable those skilled in the art to more fully understand and implement the present utility model. In addition, it should be understood that the present utility model is not limited to the specific embodiments introduced. On the contrary, the present utility model can be implemented by any combination of the features and elements described below, regardless of whether they relate to different embodiments. Therefore, the aspects, features, embodiments, and advantages described below are for illustrative purposes only and should not be regarded as elements or limitations of the claims, unless expressly recited in the claims.

[0028] In the following text, terms such as "first", "second", etc. are used to describe the elements of the present application. These terms are only used to distinguish the various elements and not to limit the nature, sequence, or number of these elements. The terms "comprising" and "having" are used to indicate an open-ended inclusion meaning and mean that there may be additional elements / components in addition to the listed elements / components. "Left" and "right" refer to the orientation when the observer faces the paper surface.

[0029] Figure 1Fig. 0 shows a perspective view of a side-dumping device 100 for a loader according to an embodiment of the present utility model. As can be seen from the figure, the side-dumping device 100 includes a side-dumping bucket 1, a bracket 2 connected to the side-dumping bucket, and a side-dumping oil cylinder 3 installed between the side-dumping bucket and the bracket.

[0030] Refer to Figure 3 , the side-dumping bucket 1 includes a first hinge seat 11 and a second hinge seat 12 provided on one side thereof facing the bracket 2. The first hinge seat 11 is located at the left end of the side-dumping bucket, and the second hinge seat 12 is located at the right end of the side-dumping bucket. In a preferred embodiment, the first hinge seat 11 is configured as a double-ear plate structure, that is, it includes a first upper ear plate 111 and a first lower ear plate 112 fixedly connected, for example, welded, to the side-dumping bucket 1. The first upper ear plate and the first lower ear plate are parallel to each other and spaced apart by a certain distance. The first upper ear plate is provided with a first upper ear plate hole 111a, and the first lower ear plate is provided with a first lower ear plate hole 112a aligned with the first upper ear plate hole. Preferably, the first lower ear plate hole and the second lower ear plate hole are the same size and are both round holes. In this embodiment, the second hinge seat 12 is also a double-ear plate structure. Specifically, it includes a second upper ear plate 121 and a second lower ear plate 122 fixedly connected, for example, welded, to the side-dumping bucket 1. The second upper ear plate and the second lower ear plate are parallel to each other and spaced apart by a certain distance. The second upper ear plate is provided with a second upper ear plate hole 121a, and the second lower ear plate 122 is provided with a second lower ear plate hole 122a aligned with the second upper ear plate hole; preferably, the first lower ear plate hole and the second lower ear plate hole are the same size and are both round holes.

[0031] Refer to Figures 4 to 6 , Fig. 10 shows an embodiment of the bracket 2 for the side-dumping device 100 according to the present utility model. In this embodiment, the bracket 2 is preferably welded and connected by three cross beams 2' and three pairs of vertical plates. These three pairs of vertical plates include a first left vertical plate 21 and a second left vertical plate 21', a first middle vertical plate 22 and a second middle vertical plate 22', and a first right vertical plate 23 and a second right vertical plate 23'. The first left vertical plate and the second left vertical plate define a left connection seat 211, and the left end of the bracket 2 can be connected to the first boom of the loader through the cooperation of the left connection seat 211 and a left pin shaft (not shown). The first right vertical plate and the second right vertical plate define a right connection seat 231, and the right end of the bracket 2 can be connected to the second boom through the cooperation of the right connection seat 231 and a right pin shaft (not shown); the first middle vertical plate and the second middle vertical plate define a middle connection seat 221, and the middle part of the bracket 2 can be connected to the rocker of the loader through the cooperation of a middle pin shaft (not shown) and the middle connection seat.

[0032] In an embodiment, refer to again Figure 3, a first oil cylinder mounting seat 10 is provided at the middle position of the top of the side discharge bucket 1. And a second oil cylinder mounting seat 20 is provided at the middle position of the top of the bracket 2 (for example, between a pair of middle vertical plates). One end of the side discharge oil cylinder, such as the cylinder end, is connected to the first oil cylinder mounting seat, and the other end, such as the piston rod end, is connected to the second oil cylinder mounting seat. By the telescoping of the piston rod, the side discharge bucket 1 can be pivoted to the left or right.

[0033] In the above embodiment, the bracket 2 may include a first hinge mechanism 4 and a second hinge mechanism 5 fixedly connected, such as by welding, to the outer sides of the first left vertical plate 21 and the first right vertical plate 23 respectively. See Figure 4 , preferably, the first hinge mechanism 4 includes a left hinge seat 41, a first hinge pin 42 and a first driving mechanism 43; the second hinge mechanism 5 includes a right hinge seat 51, a second hinge pin 52 and a second driving mechanism 53. In this embodiment, the configurations of the first hinge mechanism and the second hinge mechanism are the same and symmetric about the center of the bracket.

[0034] In a preferred embodiment, the first driving mechanism is a first hydraulic cylinder, and the second driving mechanism is a second hydraulic cylinder, and they are configured to be able to drive the first hinge pin and the second hinge pin to move between a first position and a second position respectively. In this embodiment, at the top ends of the first left vertical plate 21 and the first right vertical plate 23, there are suspension shafts 21a, 23a and suspension lugs 21b, 23b extending therefrom. The cylinder end of the first hydraulic cylinder is connected to the suspension lug 21b through a pin shaft 21c, and the piston rod end is connected to the first hinge pin 42 through another pin shaft 21d; the cylinder end of the second hydraulic cylinder is connected to the suspension lug 23b through a pin shaft 23c, and the piston rod end is connected to the second hinge pin 52 through another pin shaft 23d.

[0035] Preferably, the side discharge device 100 according to the present invention may include a control device (not shown), which can be communicatively connected to the side discharge oil cylinder, the first hydraulic cylinder and the second hydraulic cylinder, and the control device can be arranged in the cab for the driver to operate to control the telescoping of each oil cylinder. In the first position, the first hydraulic cylinder is in a fully extended state, and the first hinge pin 42 is moved into the left hinge seat 41 to be able to keep the first hinge seat connected to the left hinge seat (see Figure 1 and Figure 5 ). In the second position, the first hydraulic cylinder is in a fully retracted state, and the first hinge pin 42 is partially moved out of the left hinge seat to be able to make the first hinge seat 11 move away from the left hinge seat 41 (see Figure 4 ), so that the side discharge bucket 1 pivots to the left around the first hinge pin 42 to achieve discharging to the left.

[0036] Similarly, at the first position, the second hydraulic cylinder is in a fully extended state, and the second hinge pin 52 is moved into the right hinge seat 51 to keep the second hinge seat 12 connected to the right hinge seat 51 (see Figure 1 and Figure 4 ). At the second position, the second hydraulic cylinder is in a fully retracted state, and the second hinge pin 52 is partially moved out of the right hinge seat 51 to enable the second hinge seat 12 to move away from the right hinge seat (see Figure 2 and Figure 5 ), so that the side discharge bucket 1 pivots to the right around the second hinge pin 52 to achieve right-side discharging.

[0037] In this embodiment, advantageously, since corresponding drive mechanisms are provided for the first hinge pin and the second hinge pin, especially the telescopic movement of the hydraulic cylinder can be automatically controlled by a control device to achieve automatic insertion and extraction of the hinge pins, thereby enabling automatic engagement and disassembly of the first hinge seat 11 with the first hinge mechanism 4 and the second hinge seat 12 with the second hinge mechanism 5, so as to be able to quickly switch the discharging direction of the side discharge bucket.

[0038] Referring again to Figure 4 , the left hinge seat 41 is configured to be fixedly connected, for example, welded to the upper left ear plate 41a and the lower left ear plate 41b on the outer side of the first left vertical plate 21. The upper left ear plate and the lower left ear plate are spaced apart parallel to each other and perpendicular to the first left vertical plate 21. The upper left ear plate has an upper left hole, and the lower left ear plate has a lower left hole aligned with the upper left hole to receive the first hinge pin 42. Similarly, the right hinge seat 51 is configured to be fixedly connected, for example, welded to the upper right ear plate 51a and the lower right ear plate 51b on the outer side of the first right vertical plate 23. The upper right ear plate and the lower right ear plate are spaced apart parallel to each other and perpendicular to the first right vertical plate 23. The upper right ear plate has an upper right hole, and the lower right ear plate has a lower right hole aligned with the upper right hole to receive the second hinge pin 52. The left hinge seat and the right hinge seat are configured such that when the first hinge seat 11, which is also a double-ear plate structure, is connected to the left hinge seat 41 through the first hinge pin 42, the first upper ear plate 111 is inserted between the upper left ear plate 41a and the lower left ear plate 41b, and the first lower ear plate 112 is located below the lower left ear plate 41b. And, when the second hinge seat 12, which is also a double-ear plate structure, is connected to the right hinge seat 51 through the second hinge pin 52, the second upper ear plate 121 is inserted between the upper right ear plate 51a and the lower right ear plate 51b, and the second lower ear plate is located below the lower right ear plate. In the present utility model, the double-ear plate structure of each hinge seat can achieve a more stable connection.

[0039] In a preferred embodiment, the first upper ear plate 111, the first lower ear plate 112, the second upper ear plate 121 and the second lower ear plate 122 have the same shape and each has an arc-shaped convex portion. Between the upper left ear plate 41a and the lower left ear plate 41b and on the lower side of the lower left ear plate 41b, a first positioning member 7 is fixedly connected, for example, welded (see Figure 6 ). And, between the upper right ear plate 51a and the lower right ear plate 51b and on the lower side of the lower right ear plate 51b, a second positioning member 7' is fixedly connected, for example, welded (see Figure 5 ), and both the first positioning member 7 and the second positioning member 7' have arc-shaped concave portions, for example, configured as a partial circular ring, wherein the inner diameter of the arc-shaped concave portion is the same as the outer diameter of the arc-shaped convex portion. In this way, when the side-dumping bucket 1 and the bracket 2 are closed, it can play a role of positioning and centering, facilitating the smooth insertion of the first hinge pin 41 and the second hinge pin 51. And, advantageously, referring again to Figure 2 , a first buffer cushion block 6 is provided at the positions of the first right vertical plate 23 and the second right vertical plate 23' that are to contact the side-dumping bucket 1, and a second buffer cushion block 6' is provided at the corresponding position of the side-dumping bucket 1. The same buffer cushion blocks are provided at the positions of the first left vertical plate 21 and the second left vertical plate 21' that are to contact the side-dumping bucket 1 and at the corresponding positions of the side-dumping bucket. By providing the buffer cushion blocks, a good shock absorption and buffering effect can be achieved.

[0040] In a preferred embodiment according to the present invention, referring again to Figure 5 , at the left hinge seat 41, especially on the side of the left hinge seat facing away from the side-dumping bucket 1, a first limiting plate 8 is provided, and at the same position of the right hinge seat 51, a second limiting plate 8' is provided, for limiting the opening angle between the side-dumping bucket 1 and the bracket 2 to protect the side-dumping oil cylinder.

[0041] Industrial Applicability

[0042] Although the present invention has been described above by taking a loader as an example, the side-dumping device according to the present invention can also be applied to other construction machinery that needs to dump materials laterally.

[0043] The side-dumping device 100 for construction machinery according to the present invention can realize the automatic insertion and extraction of the first hinge pin 42 in the left hinge seat 41 and the second hinge pin 52 in the right hinge seat 51 by providing the first hydraulic cylinder and the second hydraulic cylinder communicatively connected to the control device on both sides of the bracket 2, thereby realizing the automatic engagement and disengagement of the first hinge mechanism 4 and the first hinge seat 11 of the side-dumping bucket 1, and the automatic engagement and disengagement of the second hinge mechanism 5 and the second hinge seat 12 of the side-dumping bucket 1, and further realizing the automatic and rapid switching of the unloading direction without stopping the vehicle.

[0044] See Figure 2, when the side discharge bucket 1 needs to discharge materials towards the left, the first hydraulic cylinder can be controlled to be in a fully extended state to move the first hinge pin 42 to the first position where the left hinge seat 41 and the first hinge seat 11 are engaged and locked. At the same time, the second hydraulic cylinder is controlled to move the second hinge pin 52 to the second position where the second hinge pin partially moves out of the right hinge seat 51, so that the side discharge bucket 1 can pivot to the left around the first hinge axis 42 under the drive of the side discharge cylinder 3 to achieve discharging towards the left. When the second hinge pin 52 is in the second position of partial movement out, the second hinge pin is in a state where its bottom is not completely pulled out of the right hinge seat, especially not completely pulled out of the upper right ear plate 51a, which can play a guiding role during the next insertion.

[0045] Similarly, when the side discharge bucket 1 needs to discharge materials towards the right, the second hydraulic cylinder can be controlled to be in a fully extended state to move the second hinge pin 52 to the first position where the right hinge seat 51 and the second hinge seat 12 are engaged and locked. At the same time, the first hydraulic cylinder is controlled to move the first hinge pin 51 to the second position where the first hinge pin partially moves out of the left hinge seat 41, so that the side discharge bucket 1 can pivot to the right around the second hinge axis 52 under the drive of the side discharge cylinder 3 to achieve discharging towards the right. When the first hinge pin 42 is in the second position of partial movement out, the first hinge pin is in a state where its bottom is not completely pulled out of the left hinge seat, especially not completely pulled out of the upper left ear plate 41a, which can play a guiding role during the next insertion.

[0046] For those skilled in the art, various modifications and variations can be made to the embodiments disclosed above without departing from the scope or spirit of the present utility model. Based on the practice of the present utility model disclosed in this specification, other embodiments of the present utility model will be apparent to those skilled in the art. This specification and the examples disclosed therein should be considered merely illustrative, and the true scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A side unloading device for engineering machinery, comprising a side unloading bucket (1), a bracket (2) and a side unloading cylinder (3), wherein the side unloading cylinder is installed between the side unloading bucket and the bracket, It is characterized in that The side dump bucket comprises a first hinged seat (11) located at its left end and a second hinged seat (12) located at its right end; The bracket (2) comprises a first hinge mechanism (4) arranged on the left side thereof and a second hinge mechanism (5) arranged on the right side thereof; The side dump bucket can be automatically detachably hingedly connected to the bracket through the cooperation between the first hinge seat (11) and the first hinge mechanism (4) and the cooperation between the second hinge seat (12) and the second hinge mechanism (5), so as to be able to quickly switch the unloading direction of the side dump bucket.

2. The side discharge device according to claim 1, characterized in that: The first hinge mechanism (4) comprises a left hinge seat (41), a first hinge pin (42) and a first driving mechanism (43), wherein the first driving mechanism is configured to drive the first hinge pin (42) to move between a first position and a second position, wherein in the first position, the first hinge pin (42) moves into the left hinge seat to keep the first hinge seat connected to the left hinge seat, and in the second position, the first hinge pin moves partially out of the left hinge seat to enable the first hinge seat to move away from the left hinge seat; and The second hinge mechanism (5) comprises a right hinge seat (51), a second hinge pin (52) and a second driving mechanism (53), wherein the second driving mechanism is configured to drive the second hinge pin (52) to move between a first position and a second position, wherein in the first position, the second hinge pin (52) moves into the right hinge seat to keep the second hinge seat connected to the right hinge seat, and in the second position, the second hinge pin moves out of the right hinge seat (51) to enable the second hinge seat to move away from the right hinge seat.

3. The side discharge device according to claim 2, characterized in that: The first driving mechanism (43) and the second driving mechanism (53) are both hydraulic cylinders, wherein one end of the hydraulic cylinder is connected to the main body of the bracket (2), and the other end is connected to the corresponding hinge pin.

4. The side discharge device according to claim 2 or 3, characterized in that: The bracket (2) comprises a plurality of cross beams and a first left vertical plate (21) and a second left vertical plate (21'), a first middle vertical plate (22) and a second middle vertical plate (22'), and a first right vertical plate (23) and a second right vertical plate (23') fixedly connected to the plurality of cross beams, wherein the first left vertical plate and the second left vertical plate are connected to a first movable arm of the engineering machinery, the first right vertical plate and the second right vertical plate are connected to a second movable arm of the engineering machinery, and the first middle vertical plate and the second middle vertical plate are connected to a rocker of the engineering machinery; The left hinge seat (41) is configured to be fixedly connected to an upper left ear plate (41a) and a lower left ear plate (41b) on the outer side of the first left vertical plate (21), wherein the upper left ear plate and the lower left ear plate are spaced apart from each other in parallel and perpendicular to the first left vertical plate, and the upper left ear plate has an upper left hole, and the lower left ear plate has a lower left hole aligned with the upper left hole to receive the first hinge pin (42); and The right hinge seat (51) is constructed to be fixedly connected to a right upper ear plate (51a) and a right lower ear plate (51b) on the outside of the first right vertical plate (23), wherein the right upper ear plate and the right lower ear plate are spaced apart from each other in parallel and perpendicular to the first right vertical plate, and the right upper ear plate has a right upper hole, and the right lower ear plate has a right lower hole aligned with the right upper hole to receive the second hinge pin (52).

5. The side discharge device according to claim 4, characterized in that: The first articulated seat (11) is constructed as a first upper ear plate (111) and a first lower ear plate (112) fixedly connected to the side dump bucket, wherein the first upper ear plate and the first lower ear plate are spaced apart from each other in parallel, wherein the first upper ear plate is provided with a first upper ear plate hole (111a), and the first lower ear plate is provided with a first lower ear plate hole (112a) aligned with the first upper ear plate hole; when the first articulated seat is connected to the left articulated seat through the first articulated pin, the first upper ear plate is inserted between the left upper ear plate and the left lower ear plate, and the first lower ear plate is located below the left lower ear plate; and The second articulated seat (12) is constructed to be fixedly connected to a second upper ear plate (121) and a second lower ear plate (122) of the side unloading bucket, wherein the second upper ear plate and the second lower ear plate are spaced apart from each other in parallel, wherein the second upper ear plate is provided with a second upper ear plate hole (121a), and the second lower ear plate is provided with a second lower ear plate hole (122a) aligned with the second upper ear plate hole; when the second articulated seat is connected to the right articulated seat through the second articulated pin, the second upper ear plate (121) is inserted between the right upper ear plate (51a) and the right lower ear plate (51b), and the second lower ear plate is located below the right lower ear plate.

6. The side discharge device according to claim 4, characterized in that: A first oil cylinder mounting seat (10) is provided at the middle position of the top of the side dump bucket (1), a second oil cylinder mounting seat (20) is provided at the middle position of the top of the bracket (2), one end of the side dump cylinder is connected to the first oil cylinder mounting seat, and the other end is connected to the second oil cylinder mounting seat; and A first buffer block (6) is provided at a position of the first left vertical plate (21) and the second left vertical plate (21'), and at a position of the first right vertical plate (23) and the second right vertical plate (23') that is to contact the side dump bucket, and a second buffer block (6') is provided at a corresponding position of the side dump bucket.

7. The side discharge device according to claim 5, characterized in that: The first upper ear plate (111), the first lower ear plate (112), the second upper ear plate (121) and the second lower ear plate (122) have the same shape and all have arc-shaped convex portions; A first positioning member (7) is fixedly connected between the upper left ear plate (41a) and the lower left ear plate (41b) and on the lower side of the lower left ear plate (41b); a second positioning member (7') is fixedly connected between the upper right ear plate (51a) and the lower right ear plate (51b) and on the lower side of the lower right ear plate (51b); wherein the first positioning member and the second positioning member both have an arc-shaped recess, wherein the inner diameter of the arc-shaped recess is the same as the outer diameter of the arc-shaped protrusion.

8. The side discharge device according to claim 2 or 3, characterized in that: A first limiting plate (8) is provided at the left hinge seat (41), and a second limiting plate (8') is provided at the right hinge seat (51), for limiting the opening angle between the side dump bucket (1) and the bracket (2) to protect the side dump cylinder.

9. The side discharge device according to claim 2 or 3, characterized in that: The side unloading device further comprises a control device, wherein the control device is configured to: When it is necessary to discharge toward the left side, the first driving mechanism is controlled to move the first hinge pin to the first position, and the second driving mechanism is controlled to move the second hinge pin to the second position, so that the side dump bucket can pivot toward the left side around the first hinge pin; and When it is necessary to discharge toward the right side, the first driving mechanism is controlled to move the first hinge pin to the second position, and the second driving mechanism is controlled to move the second hinge pin to the first position, so that the side dump bucket can pivot to the right side around the second hinge pin.

10. An engineering machine, characterized in that: The engineering machinery comprises a first boom, a second boom, a rocker arm and a side dump device according to any one of claims 1 to 9.

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