Quick-change and quick-connection device for excavator

Abstract

The utility model relates to the technical field of excavator repair, in particular to an excavator quick-change quick-connection device which comprises a fixing sleeve piece, a transmission shaft is arranged on the outer side of the fixing sleeve piece, an extrusion sleeve is arranged on the circumferential face of the transmission shaft, a swing sleeve is arranged at the bottom of the extrusion sleeve, and a transmission sleeve is arranged on the circumferential face of the transmission shaft. According to the quick-changing and quick-connecting device for the excavator, the extrusion rod, the progressive sleeve, the first connecting rod, the linkage rod, the second connecting rod and the fixing block are arranged, all the components are matched with one another, and the quick-changing frame shells are arranged on the left side and the right side of the transmission shaft; when needed accessories are connected to the quick-change quick connecting device of the excavator, the clamping grooves are used for fixing, manual work amount is reduced, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the field of excavator repair, in particular to a quick-change and quick-connect device for an excavator. Background Art

[0002] One end of the excavator's quick-change joint is connected to the front end of the excavator's arm, and the other end is connected to the bucket. It can realize rapid replacement between the bucket, ripper, breaker, hydraulic shear, etc., to expand the use range of the excavator, save replacement operation time, and improve work efficiency.

[0003] The existing Chinese patent with announcement number CN202164643U discloses an excavator quick-change connector, which includes a connecting plate, two connecting holes for hinged connection with the arm of the excavator are provided on the top of the connecting plate, and a left caliper and a right caliper are respectively provided on the left and right sides of the bottom of the connecting plate, and the jaws of the left caliper and the right caliper are opposite and respectively set outward, the top of the left caliper is hinged on the connecting plate, and the right caliper is fixed on the connecting plate, and an oil cylinder is connected between the left caliper and the right caliper. During the entire replacement process of replacing a hydraulic shear, a breaker or a bucket, the operator of the utility model only needs to place the bucket and other components and then operate the oil cylinder to complete the replacement process without replacing any pins or shafts and other components. The utility model has a simple structure, is easy to operate, and has a high replacement operation efficiency. It can be used for the quick interchange of excavator buckets, rippers, breaker hammers and other configuration parts.

[0004] Most of the existing quick-change quick-connect devices for excavators only avoid manual replacement of configuration parts.

[0005] However, manual fixation is still required, which brings certain troubles to the excavator driver. Utility Model Content

[0006] The purpose of the utility model is to provide a quick-change fast connection device for an excavator to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: comprising a fixing kit, a transmission shaft is arranged on the outside of the fixing kit, an extrusion sleeve is arranged on the circumferential surface of the transmission shaft, a swing sleeve is arranged on the bottom of the extrusion sleeve, a transmission sleeve is arranged on the circumferential surface of the transmission shaft, quick-change frame shells are arranged on the left and right sides of the transmission shaft, and a connecting plate is arranged between the two quick-change frame shells.

[0008] Preferably, the quick-change frame housing includes an external fixing plate, a matching hole, a transmission hole, a stabilizing frame and a fixing hole. The number of the external fixing plates is set to two, the top of the external fixing plate is set to two matching holes, the middle of the external fixing plate is set to a transmission hole, the inside of the transmission hole is sleeved with a transmission sleeve, a stabilizing frame is fixedly connected between the bottoms of the two external fixing plates, and the front end of the external fixing plate is set to a fixing hole.

[0009] Preferably, the connecting plate comprises a connecting base plate and a hook, the connecting base plate is fixedly connected between two outer fixing plates, and the hook is fixedly connected to the outer edge surface of the connecting base plate.

[0010] Preferably, the extrusion sleeve comprises an extrusion shell, an extrusion plate and a mounting plate, the extrusion shell is fixedly connected to the circumferential surface of the transmission shaft, the middle of the extrusion shell is fixedly connected to the extrusion plate, and the bottom of the extrusion plate is fixedly connected to the mounting plate.

[0011] Preferably, the fixing kit includes an extrusion rod, a progressive sleeve, a first connecting rod, a linkage rod, a second connecting rod and a fixed block, the progressive sleeve is internally slidably connected to the transmission shaft, the extrusion rod is internally slidably connected to the progressive sleeve, two first connecting rods are arranged at the front end of the extrusion rod, the end of the first connecting rod away from the extrusion rod is rotatably connected to the linkage rod, the end of the linkage rod away from the first connecting rod is rotatably connected to the second connecting rod, the end of the second connecting rod away from the linkage rod is fixedly connected to the fixing block, and the fixing block is slidably connected to the fixing hole.

[0012] Preferably, the number of the matching holes is set to four, and two are set in a group and symmetrically arranged on the left and right sides of the transmission shaft, and the number of the transmission holes and the fixing holes is set to two, and they are symmetrically arranged on the left and right sides of the transmission shaft.

[0013] Preferably, the fixing block is slidably connected in the fixing hole, and the fixing block is always located in the fixing hole, the front end of the extrusion shell is provided with two movable grooves, and the linkage rod can move in the movable grooves. Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model proposes an excavator quick-change fast connection device which is mainly provided by an extrusion rod, a progressive sleeve, a first connecting rod, a linkage rod, a second connecting rod and a fixed block. The components cooperate with each other. When the excavator quick-change fast connection device is connected to the required accessories, the fixed block is inserted into the fixed hole for fixing in the slot, which reduces the amount of manual work, is convenient and quick, and is more convenient during replacement, and only requires manual operation by the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 It is a side sectional view of the internal structure of the utility model;

[0018] Figure 4 for Figure 3 A magnified view of the structure in the middle.

[0019] In the figure: 1. quick-change frame housing; 101. outer fixing plate; 102. matching hole; 103. transmission hole; 104. stabilizing frame; 105. fixing hole; 2. connecting plate; 201. connecting base plate; 202. hook; 3. transmission sleeve; 4. transmission shaft; 5. extrusion sleeve; 501. extrusion shell; 502. extrusion plate; 503. mounting plate; 6. swing sleeve; 7. fixing kit; 701. extrusion rod; 702. progressive sleeve; 703. first connecting rod; 704. linkage rod; 705. second connecting rod; 706. fixing block. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] See also Figure 1 The utility model provides a technical solution: including a fixing kit 7, a transmission shaft 4 is arranged on the outside of the fixing kit 7, an extrusion sleeve 5 is arranged on the circumferential surface of the transmission shaft 4, a swing sleeve 6 is arranged on the bottom of the extrusion sleeve 5, a transmission sleeve 3 is arranged on the circumferential surface of the transmission shaft 4, quick-change frame housings 1 are arranged on the left and right sides of the transmission shaft 4, and a connecting plate 2 is arranged between the two quick-change frame housings 1.

[0023] Embodiment 2

[0024] Based on Example 1, please refer to Figure 1 The quick-change frame housing 1 includes an outer fixing plate 101, a matching hole 102, a transmission hole 103, a stabilizing frame 104 and a fixing hole 105. The number of the outer fixing plates 101 is set to two, and two matching holes 102 are set at the top of the outer fixing plate 101. The number of the matching holes 102 is set to four, and two are symmetrically arranged on the left and right sides of the transmission shaft 4 in a group. A transmission hole 103 is set in the middle of the outer fixing plate 101, and a transmission sleeve 3 is sleeved inside the transmission hole 103. A stabilizing frame 104 is fixedly connected between the bottoms of the two outer fixing plates 101. A fixing hole 105 is set at the front end of the outer fixing plate 101. The number of the transmission hole 103 and the fixing hole 105 is set to two, and they are symmetrically arranged on the left and right sides of the transmission shaft 4.

[0025] Embodiment 3

[0026] Based on Example 1, please refer to Figure 1 The connecting plate 2 includes a connecting base plate 201 and a hook 202 . The connecting base plate 201 is fixedly connected between the two outer fixing plates 101 , and the hook 202 is fixedly connected to the outer edge surface of the connecting base plate 201 .

[0027] Embodiment 4

[0028] Based on Example 1, please refer to Figure 2 The extrusion sleeve 5 includes an extrusion shell 501, an extrusion plate 502 and a mounting plate 503. The extrusion shell 501 is fixedly connected to the circumferential surface of the transmission shaft 4. The middle part of the extrusion shell 501 is fixedly connected to the extrusion plate 502. The bottom of the extrusion plate 502 is fixedly connected to the mounting plate 503.

[0029] Embodiment 5

[0030] Based on Example 1, please refer to Figure 3-4 The fixing kit 7 includes an extrusion rod 701, a progressive sleeve 702, a first connecting rod 703, a linkage rod 704, a second connecting rod 705 and a fixed block 706. The progressive sleeve 702 is slidably connected inside the transmission shaft 4, and the extrusion rod 701 is slidably connected inside the progressive sleeve 702. The front end of the extrusion rod 701 is provided with two first connecting rods 703, and the end of the first connecting rod 703 away from the extrusion rod 701 is rotatably connected to the linkage rod 704. The front end of the extrusion shell 501 is provided with two movable grooves, and the linkage rod 704 can move in the movable grooves. The end of the linkage rod 704 away from the first connecting rod 703 is rotatably connected to the second connecting rod 705, and the end of the second connecting rod 705 away from the linkage rod 704 is fixedly connected to the fixed block 706, the fixed block 706 is slidably connected to the fixing hole 105, the fixed block 706 is slidably connected in the fixing hole 105, and the fixed block 706 is always located in the fixing hole 105.

[0031] When the drive shaft 4 is extended, the distance between the two parts increases, and the two connecting shafts of the hydraulic shear, breaker hammer or bucket can be tightly clamped in the jaws of the stable frame 104 and the swing sleeve 6 respectively, and the hydraulic shear, breaker hammer or bucket is fixed on the quick-change joint. At the same time, the drive shaft 4 pushes the extrusion rod 701 to drive the linkage rod 704 to expand to both sides, and the connected fixing block 706 extends out of the fixing hole 105 and is inserted into the corresponding position of the hydraulic shear, breaker hammer or bucket for secondary fixation. During the entire replacement process, the operator only needs to place the bucket and other parts and then operate the oil cylinder 4 to complete it, without replacing any pins or shafts and other parts. The structure is simple, the operation is convenient, and the replacement operation efficiency is high. It can be used for the rapid interchange of configuration parts such as excavator buckets, ripper, and breaker hammers.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-change quick connection device for an excavator, characterized in that: A fixing kit (7), wherein a transmission shaft (4) is arranged on the outer side of the fixing kit (7), an extrusion sleeve (5) is arranged on the circumferential surface of the transmission shaft (4), a swing sleeve (6) is arranged at the bottom of the extrusion sleeve (5), a transmission sleeve (3) is arranged on the circumferential surface of the transmission shaft (4), quick-change frame shells (1) are arranged on the left and right sides of the transmission shaft (4), and a connecting plate (2) is arranged between the two quick-change frame shells (1).

2. The quick-change fast connection device for an excavator according to claim 1, characterized in that: The quick-change frame housing (1) comprises an outer fixing plate (101), a matching hole (102), a transmission hole (103), a stabilizing frame (104) and a fixing hole (105); the number of the outer fixing plates (101) is two, the top of the outer fixing plate (101) is provided with two matching holes (102), the middle of the outer fixing plate (101) is provided with a transmission hole (103), the interior of the transmission hole (103) is sleeved with a transmission sleeve (3), the bottoms of the two outer fixing plates (101) are fixedly connected with a stabilizing frame (104), and the front end of the outer fixing plate (101) is provided with a fixing hole (105).

3. The quick-change fast connection device for an excavator according to claim 1, characterized in that: The connecting plate (2) comprises a connecting base plate (201) and a hook (202); the connecting base plate (201) is fixedly connected between two outer fixing plates (101); and the hook (202) is fixedly connected to the outer edge surface of the connecting base plate (201).

4. The quick-change fast connection device for an excavator according to claim 1, characterized in that: The extrusion sleeve (5) comprises an extrusion shell (501), an extrusion plate (502) and a mounting plate (503); the extrusion shell (501) is fixedly connected to the circumferential surface of the transmission shaft (4); the middle of the extrusion shell (501) is fixedly connected to the extrusion plate (502); and the bottom of the extrusion plate (502) is fixedly connected to the mounting plate (503).

5. The quick-change fast connection device for an excavator according to claim 1, characterized in that: The fixing kit (7) comprises an extrusion rod (701), a progressive sleeve (702), a first connecting rod (703), a linkage rod (704), a second connecting rod (705) and a fixed block (706); the progressive sleeve (702) is slidably connected to the inside of the transmission shaft (4); the extrusion rod (701) is slidably connected to the inside of the progressive sleeve (702); two first connecting rods (703) are arranged at the front end of the extrusion rod (701); one end of the first connecting rod (703) away from the extrusion rod (701) is rotatably connected to the linkage rod (704); one end of the linkage rod (704) away from the first connecting rod (703) is rotatably connected to the second connecting rod (705); one end of the second connecting rod (705) away from the linkage rod (704) is fixedly connected to the fixing block (706); and the fixing block (706) is slidably connected to the fixing hole (105).

6. The quick-change fast connection device for an excavator according to claim 2, characterized in that: The number of the matching holes (102) is set to four, and two are arranged in a group symmetrically on the left and right sides of the transmission shaft (4); the number of the transmission holes (103) and the fixing holes (105) is set to two, and they are arranged symmetrically on the left and right sides of the transmission shaft (4).

7. The quick-change fast connection device for an excavator according to claim 5, characterized in that: The fixing block (706) is slidably connected in the fixing hole (105), and the fixing block (706) is always located in the fixing hole (105). The front end of the extrusion shell (501) is provided with two movable grooves, and the linkage rod (704) can move in the movable grooves.

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