Spring type mechanical connector for excavator

Abstract

The utility model discloses a spring type mechanical connector for an excavator, which relates to the technical field of mechanical connectors and comprises two lug plates, two connecting shafts are arranged between the two lug plates, one end of each connecting shaft is provided with a first shaft sleeve, one side of each first shaft sleeve is provided with a stop shaft sleeve, and the other side of each stop shaft sleeve is provided with a spring. The two connecting shafts are assembled and connected with the two lug plates through outer hexagon bolts and self-locking nuts; the front connecting plate and the rear connecting plate are arranged below the two connecting shafts, two springs are arranged between the front connecting plate and the rear connecting plate, one end of each spring is provided with a third shaft sleeve, and the other end of each spring is provided with a fourth shaft sleeve; the problems that in the using process of an existing excavator connector, fastening connection of the connector is assisted only through a fixing rod and a connecting shaft structure, the tightness degree of the connector is poor, and the continuity of connection and fastening is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical connectors, in particular to a spring-type mechanical connector for excavators. Background Technique

[0002] An excavator, also known as an excavation machine or a power shovel, is an earthmoving machine that uses a bucket to excavate materials above or below the machine's surface and load them into transport vehicles or unload them onto a stockpile. During operation, an excavator needs to use a connector to connect mechanical structures.

[0003] For example, the publication number is: CN214194705U (a double-lock type quick connector for excavators), which includes a main board and a sub-board. The main board and the sub-board are connected by a connecting board. The lower surfaces of the main board and the sub-board are both provided with a main locking hook and a sub-locking hook. The positions of the main locking hook and the sub-locking hook are adapted to each other, and the main locking hook and the sub-locking hook cooperate with each other to facilitate fixing the position of the excavator attachment. A number of mounting holes are provided on one surface of the main board and the opposite two surfaces of the sub-board. A number of main fixing sleeves are mounted on one surface of the main board and the opposite two surfaces of the sub-board. A number of mounting shafts are connected to one surface of the main board. The mounting holes, the mounting shafts and the main fixing sleeves are adapted in position, which facilitates inserting the mounting shafts into the mounting holes by aligning the mounting shafts with the main fixing sleeves, facilitating fixing the position of the excavator attachment and increasing the stability of the excavator attachment. By the mutual cooperation of the main locking hook and the sub-locking hook, the position of the excavator attachment can be fixed conveniently. By aligning the mounting shafts with the main fixing sleeves and inserting them into the mounting holes, the position of the excavator attachment can be fixed conveniently. The fixing handle drives the arc-shaped plate to move through the fixing rod, which facilitates fixing the position of the mounting shaft by the arc-shaped plate and increasing the stability of the mounting shaft, thereby increasing the stability of the excavator attachment. By inserting the main rotating shaft into the sub-fixing sleeve and into the round hole, the stability of the excavator attachment can be increased conveniently.

[0004] During the use of the above-mentioned excavator connector, only the fixing rod and the connecting shaft structure are used to assist the connector in being tightly connected, resulting in poor tightness of the connector and poor continuity of the connection tightness. Therefore, we provide a spring-type mechanical connector for excavators. Content of the Utility Model

[0005] The purpose of the utility model is to provide a spring-type mechanical connector for excavators, so as to solve the problem that in the prior art, during the use of the existing excavator connector, only the fixing rod and the connecting shaft structure are used to assist the connector in being tightly connected, resulting in poor tightness of the connector and poor continuity of the connection tightness.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A spring-type mechanical connector for an excavator, comprising ear plates. There are two ear plates, and between the two ear plates, there are two connecting shafts. At one end of each of the two connecting shafts, there is a first shaft sleeve. On one side of the first shaft sleeve, there is a stop shaft sleeve. The two connecting shafts are assembled and connected to the two ear plates through external hexagon bolts and self-locking nuts;

[0007] It further includes:

[0008] A front connecting plate and a rear connecting plate, which are arranged below the two connecting shafts, and between the front connecting plate and the rear connecting plate, there are two springs. At one end of each of the two springs, there is a third shaft sleeve;

[0009] A limit sticker plate, which is arranged on the outer wall of one of the ear plates. At one end of the limit sticker plate, there is a compression spring. At one end of the compression spring, there is a limit shaft. At the other end of the limit sticker plate, there is a limit handle;

[0010] A rear hook, which is arranged at the center position of the upper end of the rear connecting plate. At the movable connection position between the rear hook and the rear connecting plate, there is a pin shaft. At both ends of the pin shaft, there are elastic retaining rings.

[0011] Preferably, a second shaft sleeve is arranged on the inner wall of the ear plate, and the second shaft sleeve is sleeved and connected with the limit shaft.

[0012] Preferably, on the outer side of the rear connecting plate, there are a first limit plate, a second limit plate and a third limit plate. On the first limit plate, there is an indicating rod, and the indicating rod is connected through the front connecting plate in a penetrating manner.

[0013] Preferably, at one end of the indicating rod, there is a self-locking nut, and the indicating rod is limit-connected to the first limit plate through the self-locking nut.

[0014] Preferably, at one end of the front connecting plate, there are two sticker plates, and the two sticker plates are of an integral structure with the front connecting plate.

[0015] Preferably, on both sides of the limit handle, there are galvanized flat gaskets. The two galvanized flat gaskets are both connected through the limit sticker plate in a penetrating manner. At one end of each of the two galvanized flat gaskets, there is an internal hexagon bolt, and below the limit handle, there is an elastic cylindrical pin.

[0016] Preferably, on the outer wall of the rear connecting plate, there is a grease nipple, and the grease nipple is communicated with the inside of the rear connecting plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] The utility model achieves continuous connection and fastening by the natural pushing of the inclined surface of the pin by the spring force to contact the upper surface of the ear bracket hole, overcoming the problem that the existing excavator connector only uses the fixed rod and connecting shaft structure to assist in the fastening connection during use, resulting in poor tightness of the connector and poor continuity of the connection fastening. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the ear bracket structure of the utility model;

[0020] Figure 2 Schematic diagram of the overall structure of the spring-type mechanical connector for excavators of the utility model;

[0021] Figure 3 Plan view of the overall structure of the spring-type mechanical connector for excavators of the utility model;

[0022] Figure 4 Schematic diagram of the structure of the front connecting plate and the rear connecting plate of the utility model;

[0023] Figure 5 Schematic diagram of the structure of the limit sticker plate of the utility model;

[0024] In the figure: 1, ear plate; 2, limit sticker plate; 3, first limit plate; 4, indicating rod; 5, first bushing; 6, connecting shaft; 7, second limit plate; 8, rear hook; 9, pin shaft; 10, circlip; 11, stop bushing; 12, second bushing; 13, grease nipple; 14, lock nut; 15, sticker plate; 16, front connecting plate; 17, rear connecting plate; 18, third limit plate; 19, third bushing; 20, spring; 21, limit shaft; 22, compression spring; 23, galvanized flat washer; 24, socket head cap screw; 25, spring pin; 26, limit handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] Please refer to Figures 1-5 , an embodiment provided by the present utility model: a spring-type mechanical connector for excavators, including an ear plate 1. There are two ear plates 1. Between the two ear plates 1, there are two connecting shafts 6. At one end of each of the two connecting shafts 6, there is a first bushing 5. On one side of the first bushing 5, there is a stop bushing 11. The two connecting shafts 6 are assembled and connected to the two ear plates 1 through hexagon socket head cap screws and lock nuts;

[0027] It further includes:

[0028] The front connecting plate 16 and the rear connecting plate 17 are arranged below the two connecting shafts 6, and two springs 20 are arranged between the front connecting plate 16 and the rear connecting plate 17. A third bushing 19 is arranged at one end of the two springs 20;

[0029] The limit sticker plate 2 is arranged on the outer wall of one side of an ear plate 1, and a compression spring 22 is arranged at one end of the limit sticker plate 2. A limit shaft 21 is arranged at one end of the compression spring 22, and a limit handle 26 is arranged at the other end of the limit sticker plate 2;

[0030] The rear hook 8 is arranged at the center position of the upper end of the rear connecting plate 17, and a pin shaft 9 is arranged at the movable connection position between the rear hook 8 and the rear connecting plate 17. Elastic retaining rings 10 are arranged at both ends of the pin shaft 9.

[0031] During use, use a wrench to press the rear hook to rotate and drive the installation module to start rotating and contracting until the rear installation hole position of the spring-type mechanical connector ear bracket is assembled. Then release the rear hook and the limit component, and the spring force naturally pushes the pin inclined plane against the contact surface on the ear bracket hole.

[0032] Please refer to Figure 3 and Figure 5 , a second bushing 12 is arranged on the inner wall of the ear plate 1. The second bushing 12 arranged on the inner wall of the ear plate 1 plays a role in positioning the limit shaft 21.

[0033] Please refer to Figure 1 and Figure 3 , a first limit plate 3, a second limit plate 7 and a third limit plate 18 are arranged on the outer side of the rear connecting plate 17. An indicating rod 4 is arranged on the first limit plate 3. The indicating rod 4 is connected through the front connecting plate 16. The first limit plate 3, the second limit plate 7 and the third limit plate 18 arranged on the outer side of the rear connecting plate 17 play a role in multi-directional limiting.

[0034] Please refer to Figure 3 , a self-locking nut 14 is arranged at one end of the indicating rod 4. The indicating rod 4 is limit-connected to the first limit plate 3 through the self-locking nut 14. The self-locking nut 14 arranged at one end of the indicating rod 4 plays a role in facilitating the auxiliary limit installation.

[0035] Please refer to Figure 4 , two sticker plates 15 are arranged at one end of the front connecting plate 16. The two sticker plates 15 and the front connecting plate 16 are of an integral structure. The two sticker plates 15 arranged at one end of the front connecting plate 16 play a role in strengthening the front connecting plate 16.

[0036] Please refer to Figure 5, galvanized flat gaskets 23 are provided on both sides of the limit handle 26. The two galvanized flat gaskets 23 are both connected to the limit attaching plate 2 in a penetrating manner. One end of each of the two galvanized flat gaskets 23 is provided with an inner hexagon bolt 24. An elastic cylindrical pin 25 is provided below the limit handle 26. The galvanized flat gaskets 23 provided on both sides of the limit handle 26 play a role in assisting installation.

[0037] Please refer to Figure 3 , a grease nipple 13 is provided on the outer wall of the rear connecting plate 17. The grease nipple 13 is communicated with the inside of the rear connecting plate 17. The function of the grease nipple 13 is to connect a grease gun and mechanical equipment and play a lubricating role.

[0038] Working principle: During installation, the front hook hooks onto the front shaft of the mounting ear of the spring-type mechanical connector. After rotating the connector, the rear shaft touches the ear. Grasp the limit handle and pull out the limit component forcefully. At the same time, use a wrench to press and rotate the rear hook to drive the lower part to overcome the spring force and start to rotate and contract the rear mounting module until the rear mounting hole position of the spring-type mechanical connector ear is assembled. Then release the rear hook and the limit component. The spring force naturally pushes the pin inclined plane tightly against the contact surface on the ear hole, achieving continuous connection and fastening, and completing the use of the spring-type mechanical connector for excavators.

[0039] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A spring-type mechanical connector for an excavator, comprising an ear plate (1), wherein two ear plates (1) are provided, two connecting shafts (6) are provided between the two ear plates (1), one end of the two connecting shafts (6) is provided with a first shaft sleeve (5), one side of the first shaft sleeve (5) is provided with a stop shaft sleeve (11), and the two connecting shafts (6) are assembled and connected with the two ear plates (1) by means of an external hexagonal bolt and a self-locking nut; Features: Also includes: A front connecting plate (16) and a rear connecting plate (17), which are arranged below the two connecting shafts (6), and two springs (20) are arranged between the front connecting plate (16) and the rear connecting plate (17), and a third shaft sleeve (19) is arranged at one end of the two springs (20); A limit plate (2) is arranged on an outer wall of one side of one of the ear plates (1), and a compression spring (22) is arranged at one end of the limit plate (2), a limit shaft (21) is arranged at one end of the compression spring (22), and a limit handle (26) is arranged at the other end of the limit plate (2); The rear hook (8) is arranged at the center position of the upper end of the rear connecting plate (17), and a pin shaft (9) is arranged at the movable connection position between the rear hook (8) and the rear connecting plate (17), and elastic retaining rings (10) are arranged at both ends of the pin shaft (9).

2. The spring-type mechanical connector for an excavator according to claim 1, characterized in that: A second shaft sleeve (12) is provided on the inner wall of the ear plate (1), and the second shaft sleeve (12) is sleeve-connected to the limiting shaft (21).

3. The spring-type mechanical connector for an excavator according to claim 1, characterized in that: A first limiting plate (3), a second limiting plate (7) and a third limiting plate (18) are arranged on the outer side of the rear connecting plate (17); an indicating rod (4) is arranged on the first limiting plate (3); and the indicating rod (4) is connected to the front connecting plate (16) through the connecting plate.

4. The spring-type mechanical connector for an excavator according to claim 3, characterized in that: A self-locking nut (14) is provided at one end of the indicating rod (4), and the indicating rod (4) is connected to the first limiting plate (3) via the self-locking nut (14).

5. The spring-type mechanical connector for an excavator according to claim 1, characterized in that: Two adhesive plates (15) are arranged at one end of the front connecting plate (16), and the two adhesive plates (15) and the front connecting plate (16) form an integral structure.

6. The spring-type mechanical connector for an excavator according to claim 1, characterized in that: Both sides of the limit handle (26) are provided with galvanized flat washers (23), the two galvanized flat washers (23) are connected to the limit plate (2), one end of the two galvanized flat washers (23) is provided with a hexagon socket bolt (24), and an elastic cylindrical pin (25) is provided below the limit handle (26).

7. The spring-type mechanical connector for an excavator according to claim 1, characterized in that: A grease nipple (13) is provided on the outer wall of the rear connecting plate (17), and the grease nipple (13) is communicated with the interior of the rear connecting plate (17).

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