Railway overhead line system construction positioning tackle

Abstract

The utility model discloses a railway catenary construction positioning tackle which comprises a movable bottom plate, supporting columns of telescopic structures are arranged on the movable bottom plate, the supporting columns are symmetrically arranged at the left end and the right end of the movable bottom plate, movable wheels are installed on the lower side of the movable bottom plate, and the movable wheels are of H-shaped structures. Supporting blocks are arranged at the upper ends of the supporting columns, positioning holes are formed in the supporting blocks, positioning shafts are inserted into the positioning holes, the outer diameter of the positioning shafts is smaller than the inner diameter of the positioning holes, cable storage racks are arranged between the supporting blocks, and positioning shafts are inserted into the cable storage racks. The cable storage rack is provided with the hydraulic supporting platform, the cable storage rack does not need to be lifted manually, the hydraulic supporting platform can be directly used for transporting the cable storage rack to a proper height, the limiting blocks are arranged on the two sides of the cable storage rack, the cable storage rack can be prevented from moving along the positioning shafts during paying-off, and the paying-off process is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of railway construction, in particular to a railway contact network construction positioning pulley. Background Art

[0002] The contact network is a high-voltage transmission line that is set up in a zigzag shape above the rails in an electrified railway and is used by the pantograph to draw current. The contact network is the main structure of the railway electrification project and is a special form of transmission line set up above the railway line to supply power to electric locomotives. It consists of contact suspension, support device, positioning device, pillars and foundation. When installing the railway contact network, the cable needs to be transported along the railway using a positioning pulley.

[0003] The defects of the existing device are:

[0004] When the existing positioning pulley is performing the wire laying operation, the cable storage rack is easily translated left and right along the positioning axis, making the wire laying process unstable. In addition, the cable storage rack is heavy, and the process of installing it on the positioning pulley is relatively cumbersome. Utility Model Content

[0005] The utility model aims to provide a railway contact network construction positioning pulley to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a railway contact network construction positioning pulley, comprising a movable base plate, a support column with a telescopic structure is provided on the movable base plate, and the support column is symmetrically arranged at the left and right ends of the movable base plate, a movable wheel is installed on the lower side of the movable base plate, and the movable wheel is an "H"-shaped structure, a support block is provided on the upper end of the support column, and a positioning hole is provided inside the support block, a positioning shaft is inserted inside the positioning hole, and the outer diameter of the positioning shaft is smaller than the inner diameter of the positioning hole, a cable storage rack is provided between the support blocks, and a positioning shaft is inserted inside the cable storage rack, a hydraulic support platform is provided at the lower end of the cable storage rack, and the hydraulic support platform is provided with positioning grooves symmetrically distributed on the left and right.

[0007] Preferably, a positioning block is connected to the end of the positioning shaft, and the outer diameter of the positioning block is larger than the inner diameter of the positioning hole.

[0008] Preferably, the end of the positioning shaft is provided with an external thread, the interior of the positioning block is provided with an internal thread, and the internal thread on the positioning block matches the external thread on the positioning shaft.

[0009] Preferably, limit blocks are provided at both ends of the cable storage rack, and the limit blocks are of a semi-arc structure. The limit blocks are made of elastic material, and the inner diameter of the limit blocks is equal to the outer diameter of the positioning shaft.

[0010] Preferably, two positioning grooves are provided, and the positioning grooves are through-groove structures, and the positioning grooves are symmetrically distributed on the left and right sides of the upper flat plate of the hydraulic support platform.

[0011] Preferably, the width of the positioning groove is greater than the width of the end wooden board of the cable storage rack, and the distance between the positioning grooves is equal to the width of the cable storage rack.

[0012] Preferably, the hydraulic support platform, the positioning shaft and the cable storage rack are all located on the same vertical axis.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is provided with a hydraulic support platform, and the cable storage rack does not need to be lifted manually. The cable storage rack can be directly transported to a suitable height using the hydraulic support platform. Limit blocks are provided on both sides of the cable storage rack to prevent the cable storage rack from moving along the positioning axis when the cable is released, thereby making the cable release process more stable. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the side view structure of the support block in the utility model;

[0018] Figure 4 It is a side view structural schematic diagram of the limiting block in the utility model.

[0019] In the figure: 1. Mobile base plate; 2. Support column; 3. Positioning shaft; 4. Support block; 5. Cable storage rack; 6. Limit block; 7. Positioning block; 8. Positioning hole; 9. Positioning groove; 10. Hydraulic support platform; 11. Mobile wheels. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Embodiment 1:

[0024] As attached Figure 1-4 As shown, as a preferred embodiment, on the basis of the above-mentioned method, it further includes a movable base plate 1, a support column 2 with a telescopic structure is provided on the movable base plate 1, and the support column 2 is symmetrically arranged at the left and right ends of the movable base plate 1, and a movable wheel 11 is installed on the lower side of the movable base plate 1, and the movable wheel 11 is an "H"-shaped structure, a support block 4 is provided at the upper end of the support column 2, and a positioning hole 8 is opened inside the support block 4, a positioning shaft 3 is inserted inside the positioning hole 8, and the outer diameter of the positioning shaft 3 is smaller than the inner diameter of the positioning hole 8, a cable storage rack 5 is provided between the support blocks 4, and the positioning shaft 3 is inserted inside the cable storage rack 5, a hydraulic support platform 10 is provided at the lower end of the cable storage rack 5, and the hydraulic support platform 10 is provided with positioning grooves 9 symmetrically distributed on the left and right.

[0025] Embodiment 2:

[0026] The following further introduces the solution of the first embodiment in combination with the specific working method, as described below.

[0027] As attached Figure 1As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the end of the positioning shaft 3 is connected with a positioning block 7, and the outer diameter of the positioning block 7 is larger than the inner diameter of the positioning hole 8. When the positioning block 7 is installed at the end of the positioning shaft 3, the positioning block 7 can play a positioning effect to prevent the end of the positioning shaft 3 from directly offset to the outside of the support block 4; the end of the positioning shaft 3 is provided with an external thread, and the interior of the positioning block 7 is provided with an internal thread. The internal thread on the positioning block 7 matches the external thread on the positioning shaft 3. The thread matching can make the positioning block 7 more convenient to fix at the end of the positioning shaft 3, and the positioning block 7 can play a role in fixing the position of the positioning shaft 3 when it is fixed at the end of the positioning shaft 3.

[0028] As attached Figure 1 , as shown in Figures 2 and 4, as a preferred embodiment, on the basis of the above-mentioned method, further, limit blocks 6 are arranged at both ends of the cable storage rack 5, and the limit blocks 6 are semi-arc structures, the limit blocks 6 are made of elastic material, and the inner diameter of the limit blocks 6 is equal to the outer diameter of the positioning shaft 3. The limit blocks 6 made of elastic material can be engaged on the positioning shaft 3 at the opening position, so as to limit the horizontal movement of the cable storage rack 5 along the positioning shaft 3, prevent the cable storage rack 5 from easily moving left and right when laying out the wires, and maintain stability during laying out the wires.

[0029] As attached Figure 1-2 As shown, as a preferred embodiment, on the basis of the above method, further, two positioning grooves 9 are provided, and the positioning grooves 9 are of a through groove structure, the positioning grooves 9 are symmetrically distributed on the left and right sides of the upper flat plate of the hydraulic support platform 10, and the positioning grooves 9 of the through groove structure can facilitate the cable storage rack 5 to move along the positioning grooves 9; the width of the positioning grooves 9 is greater than the width of the end wooden board of the cable storage rack 5, and the distance between the positioning grooves 9 is equal to the width of the cable storage rack 5, the end wooden board of the cable storage rack 5 can be engaged between the positioning grooves 9, so that the cable storage rack 5 is placed on the hydraulic support platform 10, and the positioning grooves 9 can play a role in positioning the cable storage rack 5; the hydraulic support platform 10, the positioning shaft 3 and the cable storage rack 5 are all located on the same vertical axis. When the cable storage rack 5 is placed on the hydraulic support platform 10, the cable storage rack 5 can be located in the middle position of the positioning shaft 3, so that the positioning shaft 3 is subjected to more uniform force, and the cable storage rack 5 can be better supported.

[0030] Working principle: first place the movable base plate 1 on the railway, so that the movable wheels 11 under the movable base plate 1 are engaged on the rails, the support column 2 is retracted to a suitable height and then fixed, the cable storage rack 5 is placed on the hydraulic support platform 10, so that the end wooden board of the cable storage rack 5 is engaged in the positioning groove 9 on the hydraulic support platform 10, and then the hydraulic support platform 10 is started, so that the hydraulic support platform 10 lifts the cable storage rack 5 to the middle position of the support block 4, and then the positioning shaft 3 is passed through the positioning hole 8 in the support block 4 on one side and the cable storage rack 5 to the support block 4 on the other side, and then the positioning block 7 is spirally connected to the end of the positioning shaft 3 to fix the position of the positioning shaft 3, the opening of the limit block 6 is opened and the limit block 6 is engaged on both sides of the cable storage rack 5 to limit the position of the cable storage rack 5, and the movable base plate 1 is pushed along the rail to the appropriate position for wiring.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A railway contact network construction positioning pulley, comprising a movable bottom plate (1), characterized in that: The movable base plate (1) is provided with a support column (2) of a telescopic structure, and the support column (2) is symmetrically arranged at the left and right ends of the movable base plate (1); a movable wheel (11) is installed on the lower side of the movable base plate (1), and the movable wheel (11) is an "H"-shaped structure; a support block (4) is provided at the upper end of the support column (2), and a positioning hole (8) is provided inside the support block (4); a positioning shaft (3) is inserted inside the positioning hole (8), and the outer diameter of the positioning shaft (3) is smaller than the inner diameter of the positioning hole (8); a cable storage rack (5) is provided between the support blocks (4), and a positioning shaft (3) is inserted inside the cable storage rack (5); a hydraulic support platform (10) is provided at the lower end of the cable storage rack (5), and the hydraulic support platform (10) is provided with positioning grooves (9) distributed symmetrically on the left and right.

2. A railway contact network construction positioning pulley according to claim 1, characterized in that: The end of the positioning shaft (3) is connected to a positioning block (7), and the outer diameter of the positioning block (7) is greater than the inner diameter of the positioning hole (8).

3. A railway contact network construction positioning pulley according to claim 1, characterized in that: The end of the positioning shaft (3) is provided with an external thread, the interior of the positioning block (7) is provided with an internal thread, and the internal thread on the positioning block (7) matches the external thread on the positioning shaft (3).

4. A railway contact network construction positioning pulley according to claim 1, characterized in that: Limit blocks (6) are arranged at both ends of the cable storage rack (5), and the limit blocks (6) are semi-arc structures. The limit blocks (6) are made of elastic material, and the inner diameter of the limit blocks (6) is equal to the outer diameter of the positioning shaft (3).

5. The railway contact network construction positioning pulley according to claim 1, characterized in that: Two positioning grooves (9) are provided, and the positioning grooves (9) are through-groove structures. The positioning grooves (9) are symmetrically distributed on the left and right sides of the upper flat plate of the hydraulic support platform (10).

6. A railway contact network construction positioning pulley according to claim 1, characterized in that: The width of the positioning groove (9) is greater than the width of the end wooden board of the cable storage rack (5), and the distance between the positioning grooves (9) is equal to the width of the cable storage rack (5).

7. A railway contact network construction positioning pulley according to claim 1, characterized in that: The hydraulic support platform (10), the positioning shaft (3) and the cable storage rack (5) are all located on the same vertical axis.

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