A skid steer loader facilitating the detachment and rotation of a bucket

Abstract

The present invention relates to the technical field of loaders. Specifically, it relates to a skid steer loader facilitating the disassembly and rotation of a bucket, which includes a loader, a material shoveling mechanism, a first fixing mechanism, and a second fixing mechanism. A material shoveling mechanism is provided on the loader. The material shoveling mechanism includes a driving arm, a material shoveling assembly, a second fixing rod, a second mounting plate, an electric push rod, and a connecting ring. The driving arm is rotatably connected to the loader. The material shoveling assembly is provided on the driving arm. The second fixing rods are symmetrically connected to the material shoveling assembly. The second mounting plate is connected to the driving arm. The first electric push rods are symmetrically mounted on the second mounting plate. The telescopic ends of the first electric push rods are each connected to a connecting ring. By installing the first fixing mechanism and the second fixing mechanism, whether it is to fix the left and right sides or the middle part of the bucket, except for the need for workers to slightly adjust the position of the bucket, the rest of the fixing steps are automated, which greatly improves the efficiency of bucket replacement and reduces the wear of the pins and docking holes.

Description

Technical Field

[0001] The present invention relates to the technical field of loaders, and more particularly, to a skid steer loader facilitating the removal and rotation of a bucket. Background Art

[0002] A loader is an earthwork construction machine widely used in construction projects such as highways, railways, buildings, hydropower, ports, mines, etc. It is mainly used for shoveling bulk materials such as soil, sand, gravel, lime, coal, etc., and can also perform light shoveling operations on ores, hard soil, etc. By replacing different auxiliary working devices, it can also perform earthmoving, lifting, and loading and unloading operations on other materials such as wood.

[0003] In order to adapt to various construction environments, loaders are usually equipped with buckets of different specifications to adjust the volume of a single load. However, most of the existing connection methods between the bucket and the loader adopt a pin positioning method. When it is necessary to install or disassemble the bucket, it is usually necessary for workers to use a hammer to strike the pin to make it disengage from the pin slot, so as to separate the bucket from the driving arm of the loader. But this method has the following disadvantages:

[0004] Firstly, this method is time-consuming and laborious. Since it is necessary to manually strike the pin with force, it takes a lot of time and physical strength to install or disassemble the bucket each time, especially in the case of frequently replacing the bucket, this operation method is particularly inconvenient. Secondly, the pin is easily worn due to multiple hammer blows. Long-term use of the hammering method will damage the surface of the pin, affecting its service life and positioning accuracy. In addition, frequent hammering may cause the pin to deform, further affecting the connection stability between the bucket and the loader. In summary, the traditional pin positioning method has many inconveniences in practical applications, not only increasing the labor intensity of operators, but also easily causing wear of equipment components, thereby affecting the overall performance and service life of the equipment. Therefore, developing a more convenient, efficient and durable bucket installation and disassembly method is of great significance for improving the working efficiency of loaders and reducing maintenance costs.

[0005] Therefore, it is necessary to design a skid steer loader facilitating the removal and rotation of a bucket. Summary of the Invention

[0006] In order to overcome the above-mentioned disadvantages of the prior art, the present invention provides a skid steer loader facilitating the removal and rotation of a bucket.

[0007] The technical solution of the present invention is: a skid steer loader facilitating the disassembly and rotation of a bucket, including a loader, a material shoveling mechanism, a first fixing mechanism and a second fixing mechanism. A material shoveling mechanism is provided on the loader. The material shoveling mechanism includes a driving arm, a material shoveling assembly, a second fixing rod, a second mounting plate, an electric push rod, a connecting ring and a docking cylinder. The driving arm is rotatably connected to the loader. A material shoveling assembly is provided on the driving arm. The second fixing rods are symmetrically connected to the material shoveling assembly. The second mounting plate is connected to the driving arm. The first electric push rods are symmetrically mounted on the second mounting plate. The connecting rings are connected to the telescopic ends of the first electric push rods. The docking cylinders are slidably connected to the connecting rings respectively. The docking cylinders are inserted into the adjacent second fixing rods respectively. Card slots are provided on the docking cylinders respectively. A first fixing mechanism is provided on the driving arm. The first fixing mechanism includes a second electric push rod, a first fixing ring, a rotating plate and a second fixing ring. The first fixing ring is connected to the telescopic rod of the second electric push rod. The second electric push rod is connected to the first fixing ring. The rotating plate is hinged to the telescopic end of the second electric push rod. The second fixing ring is hinged to the front end of the rotating plate. The second fixing ring is connected to the docking cylinder.

[0008] Further, the material shoveling assembly includes a pin, a first mounting plate and a bucket. The first mounting plate is rotatably connected to the driving arm. A chute is provided on the first mounting plate. Docking holes are symmetrically provided on the upper part of the driving arm and the first mounting plate respectively. The pins are inserted into the docking holes respectively. The bucket is connected to the first mounting plate. A hole slot is provided at the rear of the bucket. The second fixing rods are respectively connected to the left and right sides of the bucket.

[0009] Further, the first mounting plate is slidably connected to the bucket.

[0010] Further, the second fixing mechanism includes a first fixing rod, a third mounting plate, a bi-axial motor and a connecting cylinder. The first fixing rods are respectively connected to the ends of the pins close to each other. The third mounting plate is connected to the upper part of the driving arm. The bi-axial motor is mounted on the third mounting plate. The connecting cylinders are respectively connected to the output shafts of the bi-axial motor. S-shaped chutes are provided on the connecting cylinders respectively. The first fixing rods are located inside the corresponding S-shaped chutes.

[0011] Further, a limiting mechanism is further included. The limiting mechanism is provided on the first mounting plate. The limiting mechanism includes a third fixing rod, a fourth mounting plate, a second elastic member and a limiting rod. The third fixing rods are symmetrically connected to the first mounting plate. The fourth mounting plate is slidably connected to the third fixing rods. The second elastic member is connected between the fourth mounting plate and the fixing rod. The limiting rod is connected to the fourth mounting plate. The limiting rod is inserted into the hole slot on the bucket.

[0012] Further, inclined surfaces are provided on the ends of the limiting rods close to the bucket.

[0013] Furthermore, it further includes a clamping block and a first elastic member. The clamping block is slidably connected inside the connecting ring, and the first elastic member is connected between the clamping block and the connecting ring.

[0014] Furthermore, it further includes a limiting block. The limiting blocks are connected to the connecting ring, and the limiting blocks can fit with the second fixing rod.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. By installing the first fixing mechanism and the second fixing mechanism, whether it is to fix the left and right sides or the middle part of the bucket, except for the need for workers to slightly adjust the position of the bucket, the rest of the fixing steps are automated, which greatly improves the efficiency of bucket replacement and reduces the wear of the pins and docking holes.

[0017] 2. By installing the limiting mechanism, the second fixing rod on the bucket is horizontally aligned with the docking cylinder, and starting the second electric push rod to fix it. In this way, only the fixation on the left and right sides of the bucket needs to be released to replace the new bucket, without the need to release the fixation of the first mounting plate, which simplifies the steps, saves time, and makes the replacement of the bucket faster. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the pin, the first mounting plate, the bucket and the second fixing rod of the present invention.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the first electric push rod, the connecting ring and the docking cylinder of the present invention.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the first fixing mechanism of the present invention.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the driving arm and the second fixing mechanism of the present invention.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the second fixing mechanism of the present invention.

[0024] Figure 7 It is a cross-sectional view of the second mounting plate and the connecting cylinder of the present invention.

[0025] Figure 8 It is a three-dimensional structural schematic diagram of the first mounting plate and the limiting mechanism of the present invention.

[0026] Figure 9 It is a cross-sectional view of the first mounting plate and the fourth mounting plate of the present invention.

[0027] Figure 10 A cross-sectional view of the first mounting plate and the fourth mounting plate of the present invention from another perspective.

[0028] Figure 11 A three-dimensional structural schematic diagram of the first mounting plate, the fourth mounting plate and the limiting rod of the present invention.

[0029] Figure 12 The first electric push rod, the second electric push rod and the bucket of the present invention.

[0030] Figure 13 In the present invention Figure 12 An enlarged view of part A.

[0031] Figure 14 A three-dimensional structural schematic diagram of the connecting ring, the clamping block and the first elastic member of the present invention.

[0032] In the attached drawing reference numerals: 1, loader; 2, material shoveling mechanism; 21, driving arm; 22, pin; 221, first fixing rod; 23, first mounting plate; 231, bucket; 232, second fixing rod; 24, second mounting plate; 25, first electric push rod; 26, connecting ring; 261, clamping block; 262, first elastic member; 27, docking cylinder; 3, first fixing mechanism; 31, second electric push rod; 32, first fixing ring; 33, rotating plate; 34, second fixing ring; 4, second fixing mechanism; 41, third mounting plate; 42, double-shaft motor; 43, connecting cylinder; 431, S-shaped sliding groove; 5, limiting mechanism; 51, third fixing rod; 52, fourth mounting plate; 53, second elastic member; 54, limiting rod; 6, limiting block. Detailed implementation manners

[0033] The following is only a preferred embodiment of the present invention, and does not thereby limit the protection scope of the present invention.

[0034] Embodiment 1: A skid steer loader for facilitating the disassembly and rotation of a bucket, as Figures 1 - 5As shown in the figure, it includes a loader 1, a material shoveling mechanism 2, a first fixing mechanism 3 and a second fixing mechanism 4. A material shoveling mechanism 2 is provided on the loader 1. The material shoveling mechanism 2 includes a driving arm 21, a material shoveling assembly, a second fixing rod 232, a second mounting plate 24, an electric push rod, a connecting ring 26 and a docking cylinder 27. A driving arm 21 is rotatably connected to the loader 1. Second fixing rods 232 are symmetrically connected to the left and right on the material shoveling assembly. A second mounting plate 24 is connected to the driving arm 21. First electric push rods 25 are symmetrically mounted on the left and right on the second mounting plate 24 through fixing members. Connecting rings 26 are connected to the telescopic ends of the first electric push rods 25. Docking cylinders 27 are slidably connected to the left and right on the connecting rings 26 respectively. The docking cylinders 27 are respectively inserted into the adjacent second fixing rods 232. Card slots are provided on the docking cylinders 27. A first fixing mechanism 3 is provided on the driving arm 21. The first fixing mechanism 3 includes a second electric push rod 31, a first fixing ring 32, a rotating plate 33 and a second fixing ring 34. A first fixing ring 32 is connected to the telescopic rod of the first electric push rod 25. A second electric push rod 31 is connected to the first fixing ring 32. A rotating plate 33 is hinged to the telescopic end of the second electric push rod 31. A second fixing ring 34 is hinged to the front end of the rotating plate 33. The second fixing ring 34 is connected to the docking cylinder 27.

[0035] As Figures 2 - 5 shown, the material shoveling assembly includes a pin 22, a first mounting plate 23 and a bucket 231. A first mounting plate 23 is rotatably connected to the driving arm 21. A chute is provided on the first mounting plate 23. Docking holes are symmetrically provided on the upper part of the driving arm 21 and the first mounting plate 23 respectively. Pins 22 are inserted into the docking holes respectively. A bucket 231 is slidably connected up and down on the first mounting plate 23. Four holes are provided at the rear of the bucket 231. The second fixing rods 232 are respectively connected to the left and right sides of the bucket 231.

[0036] As Figures 5 - 7 shown, the second fixing mechanism 4 includes a first fixing rod 221, a third mounting plate 41, a double-shaft motor 42 and a connecting cylinder 43. First fixing rods 221 are connected to the mutually adjacent ends of the pins 22 respectively. A third mounting plate 41 is connected to the upper part of the driving arm 21. A double-shaft motor 42 is mounted on the third mounting plate 41 through bolts. Connecting cylinders 43 are connected to the output shafts of the double-shaft motor 42 through couplings respectively. S-shaped chutes 431 are provided on the connecting cylinders 43 respectively. The first fixing rods 221 are located inside the corresponding S-shaped chutes 431. The output shafts of the double-shaft motor 42 will drive the connecting cylinders 43 to rotate in opposite directions. The first fixing rods 221 will slide in the S-shaped chutes 431 towards the position where the double-shaft motor 42 is located, thereby driving the pins 22 to approach the double-shaft motor 42. When the first fixing rod 221 slides to the end of the S-shaped chute 431 closest to the double-shaft motor 42, it indicates that the pin 22 has disengaged from the docking holes on the driving arm 21 and the first mounting plate 23, and no longer fixes the bucket 231.

[0037] As Figures 12 - 14 shown, it further includes a clamping block 261, a first elastic member 262 and a limiting block 6. The clamping block 261 is slidably connected inside the connecting ring 26, and a first elastic member 262 is connected between the clamping block 261 and the connecting ring 26 through a spring seat; the limiting block 6 is connected to the connecting ring 26, and the limiting block 6 can fit with the second fixing rod 232. The connecting ring 26 can fix the position of the second fixing rod 232 to prevent the docking cylinder 27 from directly separating from the second fixing rod 232 when the second electric push rod 31 fails during operation, resulting in the bucket 231 tilting or falling off, and preventing accidents in advance to ensure construction safety; the limiting block 6 contacts and fits with the second fixing rod 232. At this time, the center point of the docking cylinder 27 and the center point of the second fixing rod 232 are on the same horizontal line to ensure the precise docking of the docking cylinder 27 and the second fixing rod 232, and avoid wear caused by inaccurate alignment.

[0038] When the bucket 231 needs to be replaced, first start the second electric push rod 31. The telescopic rod of the second electric push rod 31 will move forward. During this process, the telescopic rod of the second electric push rod 31 will slide on the first fixing ring 32, prompting the rotating plate 33 to rotate. When the rotating plate 33 reaches its rotation limit, it will drive the second fixing ring 34 to move to the right. The second fixing ring 34 will drive the docking cylinder 27 to move to the right together. During this process, the clamping block 261 will be pushed up by the docking cylinder 27, and at the same time, the first elastic member 262 will be compressed. In this way, the clamping block 261 can be disengaged from the card slot of the docking cylinder 27 and no longer fix the docking cylinder 27. When the docking cylinder 27 is disengaged from the second fixing rod 232, it indicates that the docking cylinder 27 no longer fixes the bucket 231. Next, start the double-shaft motor 42. The output shaft of the double-shaft motor 42 will drive the connecting cylinder 43 to rotate in the opposite direction. At this time, the first fixing rod 221 will slide in the S-shaped chute 431 towards the position of the double-shaft motor 42, and then drive the bolt 22 to move closer to the double-shaft motor 42. When the first fixing rod 221 slides to the end of the S-shaped chute 431 closest to the double-shaft motor 42, it indicates that the bolt 22 has been disengaged from the docking holes on the driving arm 21 and the first mounting plate 23 and no longer fixes the bucket 231. At this time, the bucket 231 is not fixed to the device. Then, operate the loader 1 to move the driving arm 21 behind the bucket 231 that needs to be replaced, and then slightly adjust the position of the bucket 231 manually so that the limit block 6 contacts and fits with the second fixing rod 232. At this time, the center points of the docking cylinder 27 and the second fixing rod 232 are on the same horizontal line to ensure the precise docking of the docking cylinder 27 and the second fixing rod 232, avoiding wear caused by misalignment; when the docking cylinder 27 is precisely docked with the second fixing rod 232, the bolt 22 will also be aligned with the docking hole of the first mounting plate 23 on the bucket 231. At this time, start the second electric push rod 31 again. The telescopic rod of the second electric push rod 31 will move backward. The rotating plate 33 will move to the left first and then backward under the influence of the backward movement of the telescopic rod. During this process, the docking cylinder 27 will move to the left until the clamping block 261 is aligned with the card slot on the docking cylinder 27. At this time, the first elastic member 262 will make the clamping block 261 rebound and reset to fit with the card slot on the docking cylinder 27 again, thereby fixing the docking cylinder 27. The connecting ring 26 can fix the position of the second fixing rod 232 to prevent the docking cylinder 27 from directly separating from the second fixing rod 232 when the second electric push rod 31 fails during operation, resulting in the inclination or detachment of the bucket 231 and preventing accidents in advance to ensure construction safety;The docking cylinder 27 will be inserted into and reset to the initial position with the second fixed rod 232, thereby fixing the left and right sides of the bucket 231. Subsequently, the double-shaft motor 42 is started again. The output shafts of the double-shaft motor 42 drive the two connecting cylinders 43 to rotate in opposite directions, causing the first fixed rod 221 to slide in opposite directions along the S-shaped chute 431 of the connecting cylinder 43, so that the pin 22 is docked with the docking holes on the driving arm 21 and the first mounting plate 23 of the bucket 231 to be replaced. After the docking is completed, the double-shaft motor 42 is turned off, thereby realizing the fixation of the middle part of the bucket 231. At this time, the replacement of the bucket 231 is completed. Whether it is to fix the left and right sides or the middle part of the bucket 231, except for the need for workers to slightly adjust the position of the bucket 231, the rest of the fixing steps are automated, which greatly improves the efficiency of replacing the bucket 231 and reduces the wear of the pin 22 and the docking holes.

[0039] Embodiment 2: On the basis of Embodiment 1, as Figures 8 - 11 shown, it further includes a limiting mechanism 5. A limiting mechanism 5 is provided on the first mounting plate 23. The limiting mechanism 5 includes a third fixed rod 51, a fourth mounting plate 52, a second elastic member 53 and a limiting rod 54. The third fixed rods 51 are symmetrically connected to the left and right on the first mounting plate 23. The fourth mounting plate 52 is slidably connected to the front and back on the fixed rod. A second elastic member 53 is connected between the fourth mounting plate 52 and the third fixed rod 51 through a spring seat. Four limiting rods 54 are connected to the fourth mounting plate 52. The ends of the limiting rods 54 close to the bucket 231 are provided with inclined surfaces. The limiting rods 54 are inserted into the hole grooves on the bucket 231. The rear side surface of the bucket 231 contacts the inclined surfaces on the limiting rods 54. As the bucket 231 continues to slide down, the limiting rods 54 will be forced to move backward, and the fourth mounting plate 52 will also move backward, and the second elastic member 53 will be compressed. When the limiting rods 54 are aligned with the hole grooves on the rear side surface of the bucket 231, the second elastic member 53 will push the fourth mounting plate 52 to reset, so that the limiting rods 54 fit with the hole grooves, thereby fixing the bucket 231.

[0040] Another method for replacing bucket 231 is even simpler. First, the second electric push rod 31 is started to release the fixation of the left and right sides of bucket 231, and then the fourth mounting plate 52 is pulled backward. The fourth mounting plate 52 will drive the limit rod 54 to move backward together and make it disengage from the hole groove on bucket 231, thereby releasing the fixation of bucket 231. At this time, the second elastic member 53 will be compressed, and then the bucket 231 is fixed to the lifting device, and the lifting device is started to lift the bucket 231 upward. Since the bucket 231 and the first mounting plate 23 are slidably connected, the bucket 231 will rise on the first mounting plate 23 and eventually disengage from the first mounting plate 23. Then the fourth mounting plate 52 is released and the fourth mounting plate 52 will be reset. After that, the new bucket 231 to be replaced is hoisted to the front of the first mounting plate 23 and docked with the slide groove on the first mounting plate 23. Then the lifting device is started to make the bucket 231 move along the first mounting plate 23. When the stopper 54 is aligned with the hole groove on the rear side of the bucket 231, the second elastic member 53 will push the fourth mounting plate 52 to reset, so that the stopper 54 fits with the hole groove, thereby fixing the bucket 231. When the bottom of the bucket 231 touches the ground, the lifting device releases the fixation of the bucket 231. At this time, the second fixing rod 232 on the bucket 231 is horizontally aligned with the docking tube 27, and the second electric push rod 31 is started to fix it. In this way, the bucket 231 can be replaced by only releasing the fixation on the left and right sides of the bucket 231, and there is no need to release the fixation of the first mounting plate 23, which simplifies the steps, saves time, and makes the replacement of the bucket 231 faster.

[0041] During the construction process, if the angle of the bucket 231 needs to be changed, the first electric push rod 25 can be started. When the telescopic end of the first electric push rod 25 moves forward and backward, the bucket 231 will rotate around the pin 22 as the axis, thereby changing the angle of the bucket 231. When the telescopic rod of the first electric push rod 25 moves, the first fixing ring 32 will move with the second electric push rod 31 and the telescopic rod of the first electric push rod 25, so that the device can flexibly rotate or adjust the direction in the connected state while fixing the left and right sides of the bucket 231, which is convenient for rotation and will not hinder the normal use of the loader 1.

[0042] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A skid steer loader with a bucket that is easy to dismantle and rotate, comprising: Loader (1); A shoveling mechanism (2) is arranged on the loader (1) and is used for shoveling materials. The shoveling mechanism (2) comprises: A driving arm (21) connected to the loader (1); A shoveling assembly, arranged on the driving arm (21); A second fixing rod (232) connected to the shoveling assembly; A second mounting plate (24) connected to the driving arm (21); A first electric push rod (25) is symmetrically mounted on the second mounting plate (24); A connecting ring (26) connected to the telescopic ends of the two first electric push rods (25) respectively; The docking tubes (27) are respectively connected to the two connecting rings (26) in a sliding manner, and the docking tubes (27) are each provided with a slot, and the docking tubes (27) are respectively plugged into the adjacent second fixing rods (232); It is characterized by: it also includes: A first fixing mechanism (3) is arranged on the driving arm (21) and is used to fix the docking sleeve (27). The first fixing mechanism (3) comprises: A first fixing ring (32) is respectively connected to the telescopic rods of the two first electric push rods (25); A second electric push rod (31) connected to the two first fixing rings (32) respectively; A rotating plate (33) is respectively hinged on the telescopic ends of the two second electric push rods (31); Second fixing rings (34) are respectively hinged to the front ends of the two rotating plates (33), and the second fixing rings (34) are connected to the docking sleeves (27); A second fixing mechanism (4) is arranged on the driving arm (21); The shovel assembly comprises: A first mounting plate (23) is rotatably connected to the driving arm (21), a sliding groove is provided on the first mounting plate (23), and docking holes are symmetrically provided on the upper part of the driving arm (21) and the first mounting plate (23); The latch pins (22) are respectively inserted into the two docking holes; A bucket (231) is connected to the first mounting plate (23), a hole slot is provided at the rear of the bucket (231), and the second fixing rod (232) is respectively connected to the left and right sides of the bucket (231); The first mounting plate (23) is slidably connected to the bucket (231); The second fixing mechanism (4) comprises: A first fixing rod (221) is respectively connected to the ends of the two latch pins (22) that are close to each other; A third mounting plate (41) connected to the upper portion of the driving arm (21); A dual-axis motor (42) mounted on the third mounting plate (41); A connecting tube (43) connected to the two output shafts of the dual-axis motor (42), each of the connecting tubes (43) being provided with an S-shaped slide groove (431), and the first fixing rod (221) being located inside the corresponding S-shaped slide groove (431); Also included are: A limiting mechanism (5) is arranged on the first mounting plate (23) and is used to limit the position of the bucket (231). The limiting mechanism (5) comprises: A third fixing rod (51) symmetrically connected to the first mounting plate (23); A fourth mounting plate (52) is slidably connected to the third fixing rod (51); A second elastic member (53) connected between the fourth mounting plate (52) and the third fixing rod (51); A limit rod (54) connected to the fourth mounting plate (52), and the limit rod (54) is plugged into the hole groove on the bucket (231); The end of the limiting rod (54) close to the bucket (231) is provided with an inclined surface.

2. A skid steer loader with a bucket that is easy to dismantle as claimed in claim 1, characterized in that: Also included are: A clamping block (261) slidably connected inside the connecting ring (26); The first elastic member (262) is connected between the clamping block (261) and the connecting ring (26).

3. A skid steer loader with a bucket that is easy to dismantle as claimed in claim 2, characterized in that: Also included are: The limit blocks (6) are respectively connected to the two connection rings (26), and the limit blocks (6) are capable of fitting with the second fixing rod (232).

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