A loader bucket quick switching device

Abstract

The utility model discloses a loader shovel quick switching device belongs to port machinery technical field field, and its characterized in that: including main support and locking mechanism, main support includes outside support, inside support, connecting sleeve, pull rod connecting shaft, arm support connecting shaft and alignment shaft, connecting sleeve's both ends are connected with an inside support respectively, and the outside of inside support is connected with outside support through alignment shaft, and the outside support and inside support of connecting sleeve both ends are connected through pull rod connecting shaft and arm support connecting shaft, and locking mechanism is installed between two inside supports, locking mechanism includes telescopic link and locking shaft, and the inner rod of telescopic link is coaxially fixed connection with locking shaft, and the outer tube of telescopic link is fixed connection with connecting seat, and inside support and outside support all are seted up with the locking through hole of locking shaft adaptation, compared with prior art has the characteristics of quick switching loader shovel.

Description

Technical Field

[0001] This utility model relates to the field of port machinery technology, and in particular to a loader bucket quick switching device. Background Technology

[0002] Currently, traditional loader bucket replacement methods suffer from complex operations, low efficiency, and high costs. Specifically, the existing replacement process requires first disassembling the connecting pins between the bucket and the boom and tie rod, removing the old bucket, and then assembling the new bucket with the corresponding structure using the connecting pins. The core pin disassembly and assembly must be done manually, and the movement and alignment of the bucket also require the assistance of lifting equipment, ultimately resulting in a cumbersome process, high manpower input, and low replacement efficiency.

[0003] Meanwhile, the frequent insertion and removal of pins and the mating of components during replacement can easily cause wear on key mating parts such as pins and connecting holes due to repeated friction and impact. This will shorten the service life of components, increase maintenance frequency and costs, and ultimately affect the operational economy of the loader. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a loader bucket quick switching device to achieve the purpose of quickly switching loader buckets.

[0005] This utility model provides a loader bucket quick switching device, characterized in that it includes a main support and a locking mechanism. The main support includes an outer support, an inner support, a connecting sleeve, a tie rod connecting shaft, a boom connecting shaft, and an alignment shaft. The two ends of the connecting sleeve are respectively connected to an inner support. The outer side of the inner support is connected to the outer support via the alignment shaft. The outer and inner supports at both ends of the connecting sleeve are connected via the tie rod connecting shaft and the boom connecting shaft. A locking mechanism is installed between the two inner supports. The locking mechanism includes a telescopic rod and a locking shaft. The inner rod of the telescopic rod is coaxially and fixedly connected to the locking shaft. The outer cylinder of the telescopic rod is fixedly connected to the connecting seat. Both the inner and outer supports are provided with locking through holes adapted to the locking shaft.

[0006] Furthermore, the connecting sleeve is fixedly connected to the connecting seat via a connecting frame, and both ends of the connecting seat are fixedly connected to the inner support respectively. A locking mechanism is installed on the connecting seat.

[0007] Furthermore, the telescopic rod is a bidirectional telescopic hydraulic cylinder.

[0008] Furthermore, a guide sleeve is fixedly installed at the inner end of the inner support. The guide sleeve has a guide through hole, which is coaxially arranged with the locking through hole of the inner support. The locking shaft is inserted into the guide through hole of the guide sleeve, and the two form a sliding fit.

[0009] Furthermore, the inner rod of the telescopic rod is connected to the ball head pin, one end of which is a spherical head. The inner end of the locking shaft is provided with an arc-shaped groove that matches the spherical head. The spherical head is embedded in the arc-shaped groove of the locking shaft, and the two form a spherical mating connection.

[0010] Furthermore, a positioning mechanism is installed at the inner end of the outer support. The positioning mechanism includes a positioning plate and a rotating pin. The upper end of the positioning plate is rotatably connected to the outer support and the inner support through the rotating pin. The lower end of the positioning plate is provided with a positioning slot. The side wall of the positioning slot facing the bucket positioning shaft is shorter, and the other side wall is longer, which facilitates the insertion and cooperation of the bucket positioning shaft. The positioning plate is provided with a locking through hole, which can be coaxially arranged with the locking through holes of the outer support and the inner support.

[0011] Furthermore, a torsion spring is fitted on the outer side of the rotating pin, with one end of the torsion spring connected to the positioning plate and the other end connected to the inner bracket.

[0012] Furthermore, a limiting shaft is provided on the inner end wall of the outer support.

[0013] Furthermore, the lower ends of the outer and inner supports are provided with pads on the side facing the bucket.

[0014] Compared with the prior art, the present invention has the following outstanding advantages: 1. The alignment shaft of this utility model is embedded in the hook groove of the ear plate on the back of the bucket, and the positioning shaft of the bucket is embedded in the positioning slot of the positioning plate, forming a two-way positioning structure, which effectively prevents the bucket from falling out of the device. 2. The inner rod of the telescopic rod of this utility model is connected to the locking shaft through a ball head pin, giving both a certain degree of freedom of movement and avoiding the use of a rigid connection design; when the locking shaft is subjected to force and deforms, it can effectively avoid the problem of deformation damage to the telescopic rod due to rigid force transmission. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of this utility model; Figure 3 This is a top view of the present invention; Figure 4 yes Figure 2 A sectional view of section AA; Figure 5 This is a schematic diagram of the structure of the present invention in the locked state; Among them, 1. Main support; 11. Outer support; 12. Inner support; 13. Connecting sleeve; 14. Tie rod connecting shaft; 15. Connecting frame; 16. Alignment shaft; 17. Boom connecting shaft; 18. Connecting seat; 2. Locking mechanism; 21. Telescopic rod; 22. Ball pin; 23. Locking shaft; 3. Positioning mechanism; 31. Positioning plate; 32. Rotating pin. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1 As shown, this utility model includes a main support 1, a locking mechanism 2, and a positioning mechanism 3.

[0018] The main support 1 includes an outer support 11, an inner support 12, a connecting sleeve 13, a tie rod connecting shaft 14, a boom connecting shaft 17, and an alignment shaft 16.

[0019] The two ends of the connecting sleeve 13 are respectively fixedly connected to an inner bracket 12. The outer side of the inner bracket 12 is fixedly connected to the outer bracket 11 through the alignment shaft 16. The outer bracket 11 and the inner bracket 12 at both ends of the connecting sleeve 13 are connected through the tie rod connecting shaft 14 and the boom connecting shaft 17. The tie rod connecting shaft 14 is connected to the tie rod of the loader, and the boom connecting shaft 17 is connected to the boom of the loader.

[0020] The connecting sleeve 13 is fixedly connected to the connecting seat 18 via the connecting bracket 15. Both ends of the connecting seat 18 are fixedly connected to the inner bracket 12, and a locking mechanism 2 is fixedly installed on the connecting seat 18.

[0021] like Figure 2 and 3 As shown, the locking mechanism 2 includes a telescopic rod 21 and a locking shaft 23. The inner rod of the telescopic rod 21 is coaxially and fixedly connected to the locking shaft 23. The outer cylinder of the telescopic rod 21 is fixedly connected to the connecting seat 18. Both the inner support 12 and the outer support 11 are provided with locking through holes adapted to the locking shaft 23. The locking through holes can precisely match the hinge holes of the bucket ear plate, so that the locking shaft 23 passes through the locking through holes on the inner support 12 and the outer support 11 and the hinge holes on the bucket, thereby achieving mechanical locking.

[0022] In the optimized solution, the telescopic rod 21 is a bidirectional telescopic hydraulic cylinder, which can realize bidirectional mechanical locking and releasing functions.

[0023] In this embodiment, a guide sleeve is fixedly installed at the inner end of the inner support 12. The guide sleeve is provided with a guide through hole. The guide through hole and the locking through hole of the inner support 12 are arranged coaxially. The locking shaft 23 is inserted into the guide through hole of the guide sleeve, and the two form a sliding fit.

[0024] The inner rod of the telescopic rod 21 is connected to the ball head pin 22. One end of the ball head pin 22 is a spherical head. The inner end of the locking shaft 23 is provided with an arc-shaped groove that matches the spherical head. The spherical head is embedded in the arc-shaped groove of the locking shaft 23, and the two form a spherical mating connection (ball hinge connection).

[0025] like Figure 4 As shown, a positioning mechanism 3 is installed at the inner end of the outer support 11. The positioning mechanism 3 includes a positioning plate 31 and a rotating pin 32. The upper end of the positioning plate 31 is rotatably connected to the outer support 11 and the inner support 12 through the rotating pin 32. The lower end of the positioning plate 31 is provided with a positioning slot. The side wall of the positioning slot facing the bucket positioning shaft is shorter, and the other side wall is longer, which facilitates the insertion and cooperation of the bucket positioning shaft. The positioning plate 31 is provided with a locking through hole, which can be coaxially arranged with the locking through holes of the outer support 11 and the inner support 12.

[0026] A torsion spring is fitted on the outer side of the rotating pin 32. One end of the torsion spring is connected to the positioning plate 31, and the other end is connected to the inner bracket 12.

[0027] In the optimized scheme, the inner end wall of the outer support 11 is provided with a limiting shaft. When the positioning plate 31 rotates to the position of the limiting shaft, the locking through hole on the positioning plate 31 is coaxially arranged with the locking through holes of the outer support 11 and the inner support 12. At the same time, the bucket positioning shaft is fully embedded in the positioning slot and abuts against the upper end wall of the slot.

[0028] The lower ends of the outer support 11 and the inner support 12 are provided with pads on the side facing the bucket.

[0029] The operation process is as follows: Figure 5 As shown, when using this utility model, the alignment shaft 16 is first placed at the top of the hook groove of the ear plate on the back of the bucket to form a rotational fit; the device is rotated along the alignment shaft 16, and when the long wall of the positioning groove of the positioning plate 31 contacts the bucket positioning shaft, the positioning plate 31 rotates together. When the bucket positioning shaft is fully embedded in the positioning groove and abuts against the upper wall of the groove, the locking through hole of the positioning plate 31 is coaxial with the locking through holes of the outer bracket 11 and the inner bracket 12, and the hinge hole of the ear plate on the back of the bucket is also precisely aligned with the aforementioned locking through holes. At this time, the telescopic rod 21 is activated, which drives the locking shaft 23 to pass through the aforementioned locking through holes and the hinge hole of the bucket in sequence to complete the mechanical locking.

[0030] It should be noted that the specific embodiments of this utility model have been described in detail. For those skilled in the art, all obvious changes made to it without departing from the spirit and scope of this utility model are within the protection scope of this utility model.

Claims

1. A loader bucket quick change device characterized by: The utility model relates to a kind of main support and locking mechanism, the main support includes outer support, inner support, connecting sleeve, pull rod connecting shaft, arm support connecting shaft and alignment shaft, the connecting sleeve is coaxially fixed connection with locking shaft by the inner rod of telescopic rod, and the outer cylinder of telescopic rod is fixed connection with connecting seat, and inner support and outer support are all set with the locking through hole matched with locking shaft.

2. A loader bucket quick change device as claimed in claim 1, characterised in that: The connecting sleeve is fixed connection with connecting seat by connecting frame, and the both ends of connecting seat are fixed connection with inner support, and locking mechanism is installed on connecting seat.

3. The quick switching device for a loader bucket of claim 1, wherein: The telescopic rod is bidirectional telescopic hydraulic cylinder.

4. The quick switch device for a loader bucket of claim 1, wherein: The inner end of inner support is fixedly installed with guide sleeve, the guide sleeve is provided with guide through hole, the guide through hole is coaxially arranged with the locking through hole of inner support, the locking shaft is inserted into the guide through hole of guide sleeve, and both constitute sliding fit.

5. A loader bucket quick change device as claimed in claim 4, characterised in that: The inner rod of telescopic rod is connected with ball head pin, one end of ball head pin is spherical head, the inner end of locking shaft is provided with arc-shaped groove matched with spherical head, spherical head is embedded in the arc-shaped groove of locking shaft, and both constitute spherical surface fit connection.

6. A loader bucket quick change device as claimed in claim 1, wherein: The inner end of outer support is installed with positioning mechanism, the positioning mechanism includes positioning plate and rotating pin shaft, the upper end of positioning plate is rotatably connected with outer support and inner support by rotating pin shaft, the lower end of positioning plate is provided with positioning slot, the side wall body of positioning slot towards bucket positioning shaft is shorter, the other side wall body is longer, the bucket positioning shaft is embedded in fit, positioning plate is provided with locking through hole, and the locking through hole of positioning plate can be coaxially arranged with the locking through hole of outer support and inner support.

7. A loader bucket quick change device as claimed in claim 6, characterised in that: The outer side of rotating pin shaft is sleeved with torsion spring, one end of torsion spring is connected with positioning plate, and the other end is connected with inner support.

8. A loader bucket quick change device as claimed in claim 7, characterised in that: The inner end wall of outer support is provided with limiting shaft.

9. A loader bucket quick change device as claimed in claim 1, wherein: The lower end of outer support and inner support is provided with gasket towards the side of bucket.

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