A connector structure for excavator and pipe handler work device switching

Abstract

The utility model discloses a connector structure for excavator and pipe hoist machine working device switching, including the connector body, the front part of connector body is equipped with the first hinged point for connecting the boom, the rear part of connector body is equipped with the connecting point for connecting the luffing mechanism of luffing to the boom, the upper side of the middle part of connector body is equipped with the fixed point for connecting the hoist winch, the lower side of the middle part of connector body is equipped with the second hinged point for connecting the turntable. Through the above scheme, the traditional excavator can be disassembled to work device, increase the connector and boom and transform into pipe hoist machine, also can disassemble the boom and connector to pipe hoist machine, install work device, when excavator uses, reduce the dismounting frequency of winch hydraulic pipeline, reduce the possibility of hydraulic system being contaminated.

Description

Technical Field

[0001] This utility model relates to a connector structure for switching between the working devices of excavators and pipe-laying machines, belonging to the field of engineering machinery. Background Technology

[0002] With the increasing demand for cross-regional allocation of global energy and water resources, long-distance pipeline construction is characterized by long distances, large pipe diameters, and complex operating conditions. Traditional hoisting equipment suffers from problems such as unstable pipe support leading to rolling, low efficiency in long-distance transfers, and poor adaptability to complex terrain, failing to meet the specialized needs of pipeline construction and thus prompting the specialized research and development of pipe-laying machines.

[0003] like Figure 1 As shown, the existing pipe-laying machine is based on the original excavator platform, with the turntable hinge point changed to a specially designed pipe-laying machine turntable 300, which can be connected to the boom 400. The luffing cylinder 100 is connected to the boom 200 and the specially designed pipe-laying machine turntable 300 through the connection hinge points of the boom 200 and the specially designed pipe-laying machine turntable 300, respectively. The lifting winch 400 is connected to the boom 200 through the fixed point on the boom 200.

[0004] However, the above solution has the following shortcomings: (1) Modifications are needed to the existing structure of the excavator's turntable, increasing research and development costs; (2) Because the hinge point of the turntable has been changed, the excavator function cannot be realized by replacing the working device on the same platform.

[0005] (3) The hoisting winch is placed on the boom, which means that the hydraulic pipeline of the winch also needs to be disassembled and reassembled when the boom is disassembled and reassembled, increasing the probability of the hydraulic system being contaminated. Summary of the Invention

[0006] To address the problems existing in the above-mentioned technologies, this utility model provides a connector structure for switching between the working devices of excavators and pipe-laying machines. It can transform a traditional excavator into a pipe-laying machine by removing the working device and adding a connector and boom, or it can remove the boom and connector from a pipe-laying machine and install the working device to use it as an excavator. This reduces the number of times the winch hydraulic lines are disassembled and reassembled, and reduces the possibility of hydraulic system contamination.

[0007] This utility model is achieved according to the following technical solution: This utility model provides a connector structure for switching working devices of excavators and pipe-laying machines, including a connector body; the front part of the connector body is provided with a first hinge point for connecting the boom; the rear part of the connector body is provided with a connection point for connecting a luffing mechanism for luffing the boom; the upper middle part of the connector body is provided with a fixing point for connecting a lifting winch; and the lower middle part of the connector body is provided with a second hinge point for connecting a turntable.

[0008] In some embodiments, the connector body is a box structure, the amplitude-changing mechanism is a hydraulic cylinder, and the rear of the connector body is provided with a double-ear plate hinge seat as the connection point. The single-ear plate hinge seat at the bottom of the hydraulic cylinder is inserted into the double-ear plate hinge seat, and the single and double-ear plate hinge seats are connected together by inserting a pin.

[0009] In some embodiments, the front of the connector body is provided with two opposing single-ear plate hinge seats, which serve as the first hinge point; the two single-ear plate hinge seats are respectively inserted into double-ear plate hinge seats arranged on both sides of the bottom of the boom, and the single and double-ear plate hinge seats are connected together by inserting pins.

[0010] In some embodiments, the connector body has a plurality of fixing plates with mounting holes on the upper middle side, the plurality of fixing plates forming the fixing point, and the lifting winch is fixed to the plurality of fixing plates by a plurality of fasteners.

[0011] In some embodiments, the lower middle front half region and rear half region of the two oppositely arranged side plates in the connector body are each provided with a coaxially arranged hinge hole, and the four hinge holes constitute the second hinge point; after the four hinge holes on the connector body are aligned with the four hinge holes on the turntable, the connector body and the turntable are connected together by inserting a pin.

[0012] In some embodiments, the connector body includes two opposing side plates and a plurality of connecting rods fixed between the two side plates. The luffing mechanism includes a luffing winch and a pulley block. Each of the two side plates has a coaxially arranged mounting hole at its rear. The luffing winch is located between the two side plates. A pin engages with the two mounting holes to fix the luffing winch and the two side plates together. Two coaxially arranged circular tubes are fixed between the two side plates, and there is a gap between the two circular tubes. The bottom connecting end of the pulley block is located in the gap between the two circular tubes. A pin passes through the two circular tubes and the bottom connecting end of the pulley block to hinge the pulley block between the two side plates. The two mounting holes and the two circular tubes constitute the connection point.

[0013] In some embodiments, the front of the connector body is provided with two opposing single-ear plate hinge seats, which serve as the first hinge point; the two single-ear plate hinge seats are respectively inserted into double-ear plate hinge seats arranged on both sides of the bottom of the boom, and the single and double-ear plate hinge seats are connected together by inserting pins.

[0014] In some embodiments, each of the two side plates has a coaxially arranged mounting hole in the middle front half region, the two mounting holes forming the fixing point, and the lifting winch is fixed between the two side plates by a plurality of fasteners.

[0015] In some embodiments, each of the two side plates has a coaxially arranged hinge hole in the lower front half region and the rear half region of the middle section, and the four hinge holes constitute the second hinge point; after the four hinge holes on the connector body are aligned with the four hinge holes on the turntable, the connector body and the turntable are connected together by inserting a pin.

[0016] The beneficial effects of this utility model are: This invention provides a connector structure for switching between the working devices of an excavator and a pipe-laying machine, allowing for mutual switching between the two functions and achieving multi-purpose functionality, thus reducing customer procurement costs. It also reduces the cost of modifying the turntable and minimizes the disassembly of the winch hydraulic lines, preventing secondary contamination of the hydraulic system. Attached Figure Description

[0017] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] In the attached diagram: Figure 1 The structure of the pipe-laying machine is based on existing technology; Attached diagram labels: 100 - luffing cylinder, 200 - boom, 300 - special pipe-lifting machine turntable, 400 - lifting winch.

[0019] Figure 2 The structure of the pipe-laying machine of this utility model Figure 1 ; Figure 3 for Figure 2 The connector structure diagram used; Attached diagram labels: 1-Hydraulic cylinder, 2-Boom, 3-Turntable, 4-Lifting winch, 5-Connector structure, 6-Hydraulic cylinder connection hinge point, 7-Lifting winch fixing point, 8-Turntable connection hinge point, 9-Boom connection hinge point.

[0020] Figure 4 The structure of the pipe-laying machine of this utility model Figure 2 ; Figure 5 for Figure 4 The connector structure diagram used.

[0021] Attached diagram labels: 2-boom, 3-turntable, 4-lifting winch, 8-turntable connecting hinge point, 9-boom connecting hinge point, 10-luffing winch, 11-connector structure, 12-luffing winch and pulley block fixing point, 13-lifting winch fixing point, 14-pulley block.

[0022] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a connector structure for switching between the working devices of an excavator and a pipe-laying machine includes a connector body. The front of the connector body is provided with a first hinge point for connecting the boom 2; the rear of the connector body is provided with a connection point for connecting the luffing mechanism that adjusts the boom 2; the upper middle part of the connector body is provided with a fixing point for connecting the lifting winch 4; and the lower middle part of the connector body is provided with a second hinge point for connecting the turntable 3 (i.e., a conventional excavator turntable).

[0027] By adopting the above solution, this utility model enables a traditional excavator to be transformed into a pipe-laying machine by removing the working device and adding a connector and boom, or a pipe-laying machine to be used as an excavator by removing the boom and connector and installing the working device; it reduces the number of times the winch hydraulic pipeline is disassembled and assembled, and reduces the possibility of hydraulic system contamination.

[0028] The following is a preferred embodiment of the connector structure described above.

[0029] like Figure 2 , Figure 3 As shown, the connector body is a box structure, the amplitude changing mechanism is a hydraulic cylinder 1, and the rear of the connector body is provided with a double-ear plate hinge seat as a connection point (i.e., hydraulic cylinder connection hinge point 6). The single-ear plate hinge seat at the bottom of the hydraulic cylinder 1 is inserted into the double-ear plate hinge seat, and the single and double-ear plate hinge seats are connected together by inserting a pin.

[0030] Further options, such as Figure 2 , Figure 3 As shown, the front of the connector body is provided with two oppositely arranged single-ear plate hinge seats. The two single-ear plate hinge seats are used as the first hinge point (i.e., boom connection hinge point 9). The two single-ear plate hinge seats are respectively inserted into the double-ear plate hinge seats arranged on both sides of the bottom of the boom 2, and the single and double-ear plate hinge seats are connected together by inserting pins.

[0031] Further options, such as Figure 2 , Figure 3 As shown, the upper middle part of the connector body is provided with multiple fixing plates with mounting holes. The multiple fixing plates form a fixing point (i.e., the lifting winch fixing point 7). The lifting winch 4 is fixed to the multiple fixing plates by multiple fasteners.

[0032] Further options, such as Figure 2 , Figure 3 As shown, the two oppositely arranged side plates in the connector body each have a coaxially arranged hinge hole in the lower middle front half area and rear half area. The four hinge holes form the second hinge point (i.e., the turntable connection hinge point 8). After the four hinge holes on the connector body are aligned with the four hinge holes on the turntable, the connector body and the turntable 3 (i.e., the conventional excavator turntable) are connected together by inserting a pin.

[0033] Another preferred embodiment of the connector structure described above is given below.

[0034] like Figure 4 , Figure 5As shown, the connector body includes two oppositely arranged side plates and multiple connecting rods fixed between the two side plates. The luffing mechanism includes a luffing winch 10 and a pulley block 14. Each of the two side plates has a coaxially arranged mounting hole at its rear. The luffing winch 10 is located between the two side plates. A pin is used to fix the luffing winch 10 and the two side plates together with the two mounting holes. Two coaxially arranged round tubes are fixed between the two side plates, and there is a gap between the two round tubes. The bottom connecting end of the pulley block 14 is located in the gap between the two round tubes. The pulley block 14 is hinged between the two side plates by a pin passing through the two round tubes and the bottom connecting end of the pulley block 14. The two mounting holes and the two round tubes constitute the connection point (i.e., the fixing point 12 of the luffing winch and the pulley block).

[0035] Further options, such as Figure 4 , Figure 5 As shown, the front of the connector body is provided with two oppositely arranged single-ear plate hinge seats. The two single-ear plate hinge seats are used as the first hinge point (i.e., boom connection hinge point 9). The two single-ear plate hinge seats are respectively inserted into the double-ear plate hinge seats arranged on both sides of the bottom of the boom 2, and the single and double-ear plate hinge seats are connected together by inserting pins.

[0036] Further options, such as Figure 4 , Figure 5 As shown, each of the two side plates has a coaxially arranged mounting hole in the middle front half area. The two mounting holes form a fixing point (i.e., the lifting winch fixing point 13). The lifting winch 4 is fixed between the two side plates by multiple fasteners.

[0037] Further options, such as Figure 4 , Figure 5 As shown, each of the two side plates has a coaxially arranged hinge hole in the lower front half and rear half of the middle section. The four hinge holes form the second hinge point (i.e., the turntable connection hinge point 8). After the four hinge holes on the connector body are aligned with the four hinge holes on the turntable 3, the connector body and the turntable 3 (i.e., the conventional excavator turntable) are connected together by inserting a pin.

[0038] In summary, this utility model provides a connector structure for switching between the working devices of excavators and pipe-laying machines, achieving the following functions and effects: This invention provides a connector structure for switching between the working devices of an excavator and a pipe-laying machine, allowing for mutual switching between the two functions and achieving multi-purpose functionality, thus reducing customer procurement costs. It also reduces the cost of modifying the turntable and minimizes the disassembly of the winch hydraulic lines, preventing secondary contamination of the hydraulic system.

[0039] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0040] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A connector structure for switching between the working devices of an excavator and a pipe-laying machine, characterized in that: Includes the connector body; The front part of the connector body is provided with a first hinge point for connecting the boom; The rear of the connector body is provided with a connection point for connecting to the luffing mechanism that adjusts the boom's amplitude. The connector body has a fixing point on the upper middle part for connecting to the lifting winch; The connector body has a second hinge point on the lower middle side for connecting the turntable.

2. The connector structure for switching between the working devices of an excavator and a pipe-laying machine according to claim 1, characterized in that: The connector body is a box structure, the amplitude-changing mechanism is a hydraulic cylinder, and the rear of the connector body is provided with a double-ear plate hinge seat as the connection point. The single-ear plate hinge seat at the bottom of the hydraulic cylinder is inserted into the double-ear plate hinge seat, and the single and double-ear plate hinge seats are connected together by inserting a pin.

3. The connector structure for switching between the working devices of an excavator and a pipe-laying machine according to claim 2, characterized in that: The front of the connector body is provided with two oppositely arranged single-ear plate hinge seats, which serve as the first hinge point; the two single-ear plate hinge seats are respectively inserted into double-ear plate hinge seats arranged on both sides of the bottom of the boom, and the single and double-ear plate hinge seats are connected together by inserting a pin.

4. A connector structure for switching between the working devices of an excavator and a pipe-laying machine according to claim 2, characterized in that: The connector body has multiple fixing plates with mounting holes on the upper middle part. The multiple fixing plates constitute the fixing point, and the lifting winch is fixed to the multiple fixing plates by multiple fasteners.

5. A connector structure for switching between the working devices of an excavator and a pipe-laying machine according to claim 2, characterized in that: The connector body has a coaxially arranged hinge hole in the lower middle front half region and rear half region of the two oppositely arranged side plates, and the four hinge holes constitute the second hinge point; after the four hinge holes on the connector body are aligned with the four hinge holes on the turntable, the connector body and the turntable are connected together by inserting a pin.

6. A connector structure for switching between the working devices of an excavator and a pipe-laying machine according to claim 1, characterized in that: The connector body includes two oppositely arranged side plates and multiple connecting rods fixed between the two side plates. The luffing mechanism includes a luffing winch and a pulley block. Each of the two side plates has a coaxially arranged mounting hole at its rear. The luffing winch is located between the two side plates. A pin engages with the two mounting holes to fix the luffing winch and the two side plates together. Two coaxially arranged circular tubes are fixed between the two side plates, with a gap between them. The bottom connecting end of the pulley block is located in the gap between the two circular tubes. A pin passes through the two circular tubes and the bottom connecting end of the pulley block to hinge the pulley block between the two side plates. The two mounting holes and the two circular tubes constitute the connection point.

7. A connector structure for switching between excavator and pipe-laying machine working devices according to claim 6, characterized in that: The front of the connector body is provided with two oppositely arranged single-ear plate hinge seats, which serve as the first hinge point; the two single-ear plate hinge seats are respectively inserted into double-ear plate hinge seats arranged on both sides of the bottom of the boom, and the single and double-ear plate hinge seats are connected together by inserting a pin.

8. A connector structure for switching between the working devices of an excavator and a pipe-laying machine according to claim 6, characterized in that: Each of the two side plates has a coaxially arranged mounting hole in the middle front half area, and the two mounting holes constitute the fixing point. The lifting winch is fixed between the two side plates by multiple fasteners.

9. A connector structure for switching between the working devices of an excavator and a pipe-laying machine according to claim 6, characterized in that: Each of the two side plates has a coaxially arranged hinge hole in the lower front half and rear half of the middle section, and the four hinge holes constitute the second hinge point; after the four hinge holes on the connector body are aligned with the four hinge holes on the turntable, the connector body and the turntable are connected together by inserting a pin.

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