Road and bridge maintenance device

Abstract

The utility model relates to and discloses a road bridge maintenance device which comprises a hydraulic oil pipe for an arm support type bridge inspection vehicle. According to the road and bridge maintenance device, firstly, a plurality of strip-shaped heat dissipation grooves are formed in the outer wall of a hydraulic oil pipe, the heat dissipation surface area of the outer wall of the hydraulic oil pipe is further increased, then an outer cold water pipe is arranged on the periphery of the hydraulic oil pipe, and an annular water channel used for conveying cooling liquid is formed; a water inlet pipe and a water outlet pipe in the outer cold water pipe are communicated through a water tank radiator, a water pump and a guide pipe to form a circulating channel, when the water pump is in a working state, cooling liquid can circularly flow through the periphery of the hydraulic oil pipe to absorb heat generated and transmitted by execution elements such as a hydraulic cylinder and a hydraulic motor, and the heat dissipation performance of the hydraulic oil pipe is further improved; and the heat dissipation performance is better.

Description

Technical Field

[0001] The utility model relates to the technical field of road and bridge maintenance, in particular to a road and bridge maintenance device. Background Technique

[0002] In road and bridge maintenance, boom-type bridge inspection vehicles play an important role; boom-type bridge inspection vehicles provide a convenient and efficient operation platform for bridge inspection and maintenance; it can quickly and safely deliver staff and inspection equipment to various parts of the bridge, including the bridge deck, the bottom of the bridge, the bridge pier, etc., which can greatly improve the work efficiency and operation safety of bridge inspection and maintenance; in boom-type bridge inspection vehicles, the hydraulic system plays a crucial role and is the key factor to ensure the efficient, stable and safe operation of the bridge inspection vehicle; and in the hydraulic system of boom-type bridge inspection vehicles, hydraulic hoses are the channels connecting various components of the hydraulic system, responsible for delivering the high-pressure hydraulic oil generated by the hydraulic pump to the actuators (such as hydraulic cylinders, hydraulic motors). Through the hydraulic hoses, the hydraulic oil can flow smoothly in the system, thereby realizing the transmission of energy and driving the boom of the bridge inspection vehicle to extend, contract, lift and other actions, playing the roles of transmitting hydraulic oil, bearing pressure, ensuring sealing, adapting to movement and deformation, and heat dissipation.

[0003] As is well known, long-term continuous operation, poor heat dissipation or internal faults in the hydraulic system of boom-type bridge inspection vehicles may cause the oil temperature to be too high. Too high oil temperature will reduce the viscosity of the hydraulic oil, exacerbate system leakage, and at the same time damage the seals and hydraulic components; therefore, the above-mentioned hydraulic hoses connecting various components of the hydraulic system play an important role in dissipating heat from the hydraulic oil; however, in large equipment such as boom-type bridge inspection vehicles, the hydraulic oil in the hydraulic system has good pressure. In order to ensure that the hydraulic hoses will not burst and deform under high pressure, generally the walls of the hydraulic hoses are relatively thick and the heat dissipation performance is not good; in view of this, this article aims to propose a road and bridge maintenance device with a hydraulic hose heat dissipation function. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that in large equipment such as boom-type bridge inspection vehicles in the prior art, the hydraulic oil in the hydraulic system has good pressure. In order to ensure that the hydraulic hoses will not burst and deform under high pressure, generally the walls of the hydraulic hoses are relatively thick and the heat dissipation performance is not good, and a road and bridge maintenance device is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A road and bridge maintenance device includes a hydraulic hose for a boom-type bridge inspection vehicle. An external cold water pipe is coaxially arranged around the hydraulic hose, and an annular water channel is reserved between the inner wall of the external cold water pipe and the outer wall of the hydraulic hose;

[0007] Both ends of the external cooling water pipe are vertically and fixedly connected to a water inlet pipe and a water outlet pipe respectively, and a water tank radiator and a water pump are sequentially and circularly connected between the water inlet pipe and the water outlet pipe through a conduit.

[0008] Preferably, both ends of the hydraulic oil pipe are fixedly connected to hydraulic pipe joints. One side of the hydraulic pipe joint is coaxially and fixedly connected to an inner pressure pipe II. An outer pressure pipe II, an inner pressure pipe I, and an outer pressure pipe I are sequentially and coaxially arranged to expand outward around the outer periphery of the inner pressure pipe II. The outer pressure pipe II and the inner pressure pipe II are respectively installed by being hermetically squeezed on the inner and outer circles of the opening of the hydraulic oil pipe, and the inner pressure pipe I and the outer pressure pipe I are respectively installed by being hermetically squeezed on the inner and outer circles of the opening of the external cooling water pipe.

[0009] Preferably, a plurality of support bars are fixedly installed on the inner wall of the external cooling water pipe, and the support bars are in contact with the outer wall of the hydraulic oil pipe.

[0010] Preferably, the upper openings of the water inlet pipe and the water outlet pipe are respectively fixedly connected to a pipe joint I and a pipe joint II.

[0011] Preferably, a plurality of strip-shaped heat dissipation grooves are arranged on the outer wall of the hydraulic oil pipe.

[0012] Preferably, the water outlet of the water tank radiator is fixedly connected to the pipe joint I through a conduit, the water inlet of the water tank radiator is fixedly connected to the water outlet of the water pump through a conduit, and the water inlet of the water pump is fixedly connected to the pipe joint II through a conduit.

[0013] Compared with the prior art, the present utility model provides a road and bridge maintenance device, which has the following

[0014] Beneficial effects:

[0015] For this road and bridge maintenance device, first, a plurality of strip-shaped heat dissipation grooves are arranged on the outer wall of the hydraulic oil pipe, which further increases the heat dissipation surface area of the outer wall of the hydraulic oil pipe. Then, an external cooling water pipe is arranged around the hydraulic oil pipe to form an annular water channel for conveying coolant. The water inlet pipe and the water outlet pipe in the external cooling water pipe are connected into a circulating channel through the water tank radiator, the water pump, and the conduit. When the water pump is in a working state, the water inlet of the water pump can extract the coolant in the annular water channel in the external cooling water pipe and convey it to the inner cavity of the water tank radiator. Then, the water tank radiator conveys the coolant to the water inlet pipe in the external cooling water pipe by its own weight, so as to realize the circulating flow of the coolant around the hydraulic oil pipe, absorb the heat generated and transmitted by actuators such as hydraulic cylinders and hydraulic motors, further improve the heat dissipation performance of the hydraulic oil pipe, and then circulate the coolant that has absorbed heat to the water tank radiator for heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1Schematic structural diagram of a road and bridge maintenance device proposed by the present utility model;

[0017] Figure 2 Exploded view of a road and bridge maintenance device proposed by the present utility model;

[0018] Figure 3 Schematic structural diagram of a hydraulic pipe joint in a road and bridge maintenance device proposed by the present utility model;

[0019] Figure 4 Schematic structural diagram of an external cold water pipe in a road and bridge maintenance device proposed by the present utility model;

[0020] Figure 5 Schematic principle diagram of a road and bridge maintenance device proposed by the present utility model.

[0021] In the figure: 1, hydraulic oil pipe; 2, strip-shaped heat dissipation groove; 3, external cold water pipe; 4, water inlet pipe; 5, water outlet pipe; 6, hydraulic pipe joint; 7, pipe joint one; 8, pipe joint two; 9, external pressure pipe one; 10, internal pressure pipe one; 11, external pressure pipe two; 12, internal pressure pipe two; 13, support strip. Specific implementation mode

[0022] 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.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] Refer to the attached Figures 1-5 , a road and bridge maintenance device, including a hydraulic oil pipe 1 used in an articulated bridge inspection vehicle. An external cold water pipe 3 is coaxially arranged around the hydraulic oil pipe 1, and an annular water passage is reserved between the inner wall of the external cold water pipe 3 and the outer wall of the hydraulic oil pipe 1. The two ends of the external cold water pipe 3 are respectively vertically and fixedly connected and communicated with a water inlet pipe 4 and a water outlet pipe 5. The upper openings of the water inlet pipe 4 and the water outlet pipe 5 are respectively fixedly connected and communicated with a pipe joint one 7 and a pipe joint two 8. The hydraulic oil pipe 1 used in the articulated bridge inspection vehicle in the prior art is longer than the length of the oil pipe shown in the attached Figure 1 The length of the oil pipe in the drawing is shortened for better display.

[0025] It should be added that both ends of the hydraulic oil pipe 1 are fixedly connected with hydraulic pipe joints 6 in a communicating manner. One side of the hydraulic pipe joint 6 is coaxially and fixedly connected with an inner pressure pipe II 12. An outer pressure pipe II 11, an inner pressure pipe I 10, and an outer pressure pipe I 9 are sequentially coaxially and outwardly expanded around the periphery of the inner pressure pipe II 12. Moreover, one side of the outer pressure pipe II 11, the inner pressure pipe I 10, and the outer pressure pipe I 9 are all fixedly and sealingly connected to the hydraulic pipe joint 6. The outer pressure pipe II 11 and the inner pressure pipe II 12 are respectively sealingly and extrusively installed on the inner and outer circles of the opening of the hydraulic oil pipe 1. The inner pressure pipe I 10 and the outer pressure pipe I 9 are respectively sealingly and extrusively installed on the inner and outer circles of the opening of the outer cold water pipe 3. As can be seen from the above, the left and right openings of the outer cold water pipe 3 are in a sealed state.

[0026] Furthermore, it is added that a water tank radiator and a water pump are sequentially and circularly connected between the water inlet pipe 4 and the water outlet pipe 5 through a conduit. The water tank radiator and the annular water channel are filled with a coolant. The water tank radiator specifically adopts a GLⅡ2-15-78 type finned radiator, which is made of seamless steel pipes with advanced technology and high heat transfer performance wound around steel fins, and is composed of a steel porous plate frame and finned tubes, mainly used for increasing the surface area of the internal coolant, that is, enhancing the heat dissipation performance of the coolant. And the water tank radiator is arranged above the hydraulic oil pipe 1, that is, the coolant in the water tank radiator can flow to the hydraulic oil pipe 1 by its own weight. The water outlet of the water tank radiator is fixedly connected through a conduit and a pipe joint I 7. The water inlet of the water tank radiator is fixedly connected through a conduit and the water outlet of the water pump. The water inlet of the water pump is fixedly connected through a conduit and a pipe joint II 8. This water pump is connected to the battery in the boom type bridge inspection vehicle through a wire.

[0027] It is also added that several support bars 13 are fixedly installed on the inner wall of the outer cold water pipe 3. The support bars 13 are in contact with the outer wall of the hydraulic oil pipe 1. The several support bars 13 are mainly used to support the inner wall of the outer cold water pipe 3 around the hydraulic oil pipe 1. Several strip-shaped heat dissipation grooves 2 are arranged on the outer wall of the hydraulic oil pipe 1. The several strip-shaped heat dissipation grooves 2 are mainly used to increase the surface area of the outer wall of the hydraulic oil pipe 1 for heat dissipation.

[0028] In the present utility model, when the boom type bridge inspection vehicle works continuously for a long time, has poor heat dissipation, or the hydraulic oil temperature in the hydraulic oil pipe 1 is too high due to internal faults in the hydraulic system, the water pump can be started. The water pump extracts the coolant in the annular water channel of the outer cold water pipe 3 from its water inlet and conveys it to the inner cavity of the water tank radiator. Then, the water tank radiator conveys the coolant to the water inlet pipe 4 in the outer cold water pipe 3 by its own weight, so as to realize the circulation of the coolant flowing through the periphery of the hydraulic oil pipe 1, absorb the heat generated and transmitted by actuators such as hydraulic cylinders and hydraulic motors, further enhance the heat dissipation performance of the hydraulic oil pipe 1, and have better heat dissipation performance. Then, the coolant that has absorbed heat is circulated to the water tank radiator for heat dissipation.

[0029] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A road bridge maintenance device, comprising a hydraulic oil pipe (1) for an arm-type bridge inspection vehicle, characterized in that: An external cooling water pipe (3) is coaxially arranged on the periphery of the hydraulic oil pipe (1), and an annular water passage is reserved between the inner wall of the external cooling water pipe (3) and the outer wall of the hydraulic oil pipe (1); The two ends of the external cooling water pipe (3) are respectively vertically fixedly connected with a water inlet pipe (4) and a water outlet pipe (5), and the water inlet pipe (4) and the water outlet pipe (5) are cyclically connected with a water tank radiator and a water pump in sequence through a conduit.

2. The road and bridge maintenance device according to claim 1, characterized in that: The openings at both ends of the hydraulic oil pipe (1) are fixedly connected to hydraulic pipe joints (6), one side of the hydraulic pipe joint (6) is coaxially fixedly connected to an internal pressure pipe 2 (12), and the outer periphery of the internal pressure pipe 2 (12) is coaxially expanded outwardly with an external pressure pipe 2 (11), an internal pressure pipe 1 (10) and an external pressure pipe 1 (9) in sequence, the external pressure pipe 2 (11) and the internal pressure pipe 2 (12) are respectively sealed and extruded and installed on the inner ring and outer ring of the opening of the hydraulic oil pipe (1), and the internal pressure pipe 1 (10) and the external pressure pipe 1 (9) are respectively sealed and extruded and installed on the inner ring and outer ring of the opening of the external cooling water pipe (3).

3. The road and bridge maintenance device according to claim 1, characterized in that: A plurality of support bars (13) are fixedly mounted on the inner wall of the external cooling water pipe (3), and the support bars (13) and the outer wall of the hydraulic oil pipe (1) are in contact with each other.

4. The road and bridge maintenance device according to claim 1, characterized in that: The upper end openings of the water inlet pipe (4) and the water outlet pipe (5) are respectively fixedly connected to a pipe joint 1 (7) and a pipe joint 2 (8).

5. The road and bridge maintenance device according to claim 1, characterized in that: A plurality of strip-shaped heat dissipation grooves (2) are arranged on the outer wall of the hydraulic oil pipe (1).

6. The road and bridge maintenance device according to claim 4, characterized in that: The water outlet of the water tank radiator is fixedly connected to the pipe joint 1 (7) through a conduit, the water inlet of the water tank radiator is fixedly connected to the water outlet of the water pump through a conduit, and the water inlet of the water pump is fixedly connected to the pipe joint 2 (8) through a conduit.

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