Positioning device for traction arm of paver

Abstract

The utility model provides a positioning device for a traction arm of a paver. The positioning device comprises a mounting box, a pin shaft, an operating handle and a spring, the mounting box is arranged on a rack of the paver, and a positioning groove is formed in the upper surface of the mounting box; the pin shaft movably penetrates through the mounting box in the length direction; the operating handle is perpendicular to the pin shaft to form a T-shaped structure, and the operating handle is arranged in the positioning groove; and the spring is sleeved on the pin shaft and is arranged between the mounting box and the operating handle. By adopting the innovative structural design, the pin shaft can be operated to extend out to limit the screed plate of the paver only by pulling the operating handle, so that the problems that the screed plate is suspended after being lifted and the hydraulic oil cylinder is in a pressure building state for a long time when the traditional paver is transferred or shut down are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of paving machines, and in particular to a traction arm positioning device for a paving machine. Background Art

[0002] In modern highway construction, pavers are key construction equipment, and their performance and stability directly affect the quality and efficiency of road paving. As one of the core components of pavers, the stability and reliability of the screed plate are crucial to the entire construction process. However, when the paver is transferred or shut down, the lifting and lowering control of the screed plate becomes a technical problem. After the traditional paver lifts the screed plate, the hydraulic cylinder is in a state of pressure retention for a long time, which easily leads to damage to components such as the cylinder seal, which not only increases the maintenance cost of the equipment, but also affects the construction progress. Therefore, designing a new type of screed plate limit device for pavers to solve the above problems is of great significance to improving the performance and stability of pavers. Utility Model Content

[0003] The main purpose of the utility model is to provide a traction arm positioning device for a paver, so as to at least solve the problem in the prior art that the ironing plate has no limiting device during the paver transfer process.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a traction arm positioning device for a paver, comprising: an installation box, a pin shaft, an operating handle and a spring; the installation box is arranged on the frame of the paver, and a positioning groove is opened on the upper surface of the installation box; the pin shaft can movably penetrate the installation box along the length direction; the operating handle is arranged perpendicular to the pin shaft to form a "T" structure, and the operating handle is arranged in the positioning groove; the spring is sleeved on the pin shaft and is arranged between the installation box and the operating handle.

[0005] Furthermore, the installation box includes a frame upright plate, an upright plate and a limit panel; a positioning groove is provided on the limit panel.

[0006] Furthermore, the operating handle is provided with a handle and a grip.

[0007] The utility model technical solution is a traction arm positioning device for a paver, comprising: a mounting box, a pin shaft, an operating handle and a spring; the mounting box is arranged on the frame of the paver, and a positioning groove is provided on the upper surface of the mounting box; the pin shaft movably penetrates the mounting box along the length direction; the operating handle is arranged perpendicular to the pin shaft to form a "T" structure, and the operating handle is arranged in the positioning groove; the spring is sleeved on the pin shaft and arranged between the mounting box and the operating handle. The utility model adopts an innovative structural design, and only the operating handle needs to be pulled to operate the pin shaft to extend to limit the paving machine ironing plate, which effectively solves the problem that the ironing plate of the traditional paver is stuck in the air after being lifted and the hydraulic cylinder is in a state of pressure holding for a long time when the traditional paver is transferred or stopped. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0009] Figure 1 It is a structural schematic diagram of a traction arm positioning device for a paver that can be selected according to an embodiment of the utility model.

[0010] The above drawings include the following reference numerals:

[0011] 10. Installation box; 11. Rack vertical plate; 12. Vertical plate; 13. Limit panel; 20. Pin shaft; 30. Operating handle; 31. Handle; 32. Handle; 40. Spring. DETAILED DESCRIPTION

[0012] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0013] The utility model provides a traction arm positioning device for a spreading machine, comprising: a mounting box 10, a pin shaft 20, an operating handle 30 and a spring 40; the mounting box 10 is arranged on the frame of the spreading machine, and a positioning groove is opened on the upper surface of the mounting box 10; the pin shaft 20 movably penetrates the mounting box 10 along the length direction; the operating handle 30 is arranged perpendicular to the pin shaft 20 to form a "T" structure, and the operating handle 30 is arranged in the positioning groove; the spring 40 is sleeved on the pin shaft 20, and is arranged between the mounting box 10 and the operating handle 30.

[0014] Furthermore, the installation box 10 includes a frame upright plate 11, an upright plate 12 and a limit panel 13; a positioning slot is provided on the limit panel 13. Preferably, the limit panel 13 needs to be welded and fixed to the frame upright plate 11 and the upright plate 12 after the pin shaft 20 and the operating handle 30 are installed.

[0015] During the specific implementation, the first end of the pin shaft 20 is first passed through the vertical plate 12; the spring 40 is sleeved on the first end of the pin shaft 20, and then the first end of the pin shaft 20 continues to pass through the frame vertical plate 11; after compressing the spring 40, the operating handle 30 is connected and installed, so that the two ends of the spring 40 are respectively in contact with the frame vertical plate 11 and the operating handle 30.

[0016] Furthermore, the operating handle 30 is provided with a handle 31 and a grip 32. In specific implementation, the handle 31 and the grip 32 are connected by a thread, and the handle 31 is provided for the convenience of the operator to hold.

[0017] When the utility model is used, the frame vertical plate 11 is first fixed on the frame of the paver and is located on the travel path of the traction arm of the paving plate; then the spring 40 is sleeved on the pin 20, and the two ends of the pin 20 are passed through the frame vertical plate 11 and the vertical plate 12, at which time the two ends of the spring 40 are respectively in contact with the frame vertical plate 11 and the handle 32; and the limit panel 13 is passed through the handle 32 and fixedly connected with the frame vertical plate 11 and the vertical plate 12; finally, the handle 31 is fixed on the handle 32. The construction personnel only need to pull the handle 31 to make the pin 20 pass through the vertical plate 12, protrude on the travel path of the traction arm of the paving plate, and fall on the pin 20 after the screed is lifted to a fixed position and then lowered. When the paver is transferred or stopped, the operator only needs to pull the operating handle 30 to stably maintain the ironing plate at the required height. The structure is simple and the operation is convenient, which solves the problem of the ironing plate having no limit device during the transfer of the paver in the prior art, and further effectively solves the problem of the ironing plate being stuck in the air after being lifted by the hydraulic cylinder alone and the hydraulic cylinder being in a state of pressure retention for a long time.

[0018] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A traction arm positioning device for a paver, characterized in that: Including: An installation box (10), a pin shaft (20), an operating handle (30), and a spring (40); the installation box (10) is arranged on the frame of the paver, and a positioning groove is formed on the upper surface of the installation box (10); the pin shaft (20) penetrates through the installation box (10) movably along the length direction; the operating handle (30) is arranged perpendicular to the pin shaft (20) to form a "T" structure, and the operating handle (30) is arranged in the positioning groove; the spring (40) is sleeved on the pin shaft (20) and is arranged between the installation box (10) and the operating handle (30).

2. The traction arm positioning device for a paver according to claim 1, characterized in that: The installation box (10) includes a frame vertical plate (11), a vertical plate (12), and a limiting panel (13); a positioning groove is formed on the limiting panel (13).

3. The traction arm positioning device for a paver according to claim 1, characterized in that: The operating handle (30) is provided with a handle (31) and a hand grip (32).

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