Crossing platform telescopic boom lubricating device and movable crossing platform

Abstract

The utility model belongs to the technical field of electric power construction equipment, and particularly discloses a crossing platform telescopic boom lubricating device and a movable crossing platform. The crossing platform telescopic boom lubricating device comprises an inner sleeve and an outer sleeve which are in sliding fit, and the lower end of the inner sleeve extends into an inner cavity of the outer sleeve through an opening in the upper end of the outer sleeve; a plurality of first wear-resisting blocks are arranged on the outer side face of the lower end of the inner sleeve in the circumferential direction, and the oppositely-arranged first wear-resisting blocks are symmetrically arranged along the axis of the inner sleeve. A plurality of second wear-resisting blocks are arranged on the inner side face of the upper end of the outer sleeve in the circumferential direction, and the oppositely-arranged second wear-resisting blocks are symmetrically arranged along the axis of the outer sleeve. According to the lubricating device for the telescopic boom of the crossing platform, the design of multiple wear-resistant blocks is adopted, so that the occurrence of non-concentric motion in the telescopic boom of the crossing platform is effectively avoided, the operation stability of the movable crossing platform is ensured, and the lubricating device is convenient to mount and dismount.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power construction equipment and relates to a lubricating device for a telescopic arm of a spanning platform and a movable spanning platform. Background Art

[0002] During the installation or removal of power lines, affected by the terrain and line channels, it is inevitable to cross houses, roads, railways and other ground facilities as well as existing transmission lines. In order to ensure that these obstacles can be safely and smoothly crossed during the installation, high-voltage line laying auxiliary equipment is usually required.

[0003] As an auxiliary equipment for laying high-voltage power lines, the mobile crossing platform can adjust its posture according to the different directions of the construction line through the telescopic boom of the crossing platform to better meet the operational needs of power construction in complex environments. However, this requires that the telescopic boom of the crossing platform must not only have a large stroke, but also ensure that its operation is smooth and stable to avoid tilting. Once the telescopic boom of the crossing platform has eccentric movement, it is easy to cause tilting or even jamming, which will seriously affect construction safety and efficiency. In addition, the friction between the inner sleeve and the outer sleeve of the telescopic boom of the crossing platform will accelerate component wear, resulting in a shortened equipment life and increased maintenance costs. In order to reduce wear and eccentric movement, some telescopic booms of the crossing platform adopt a complex structural design, which makes the installation and maintenance process cumbersome and also increases costs.

[0004] Based on this, there is an urgent need to propose a new type of lubrication device for telescopic boom across the platform to solve the above-mentioned technical problems existing in the prior art. Utility Model Content

[0005] The purpose of the utility model is to propose a lubrication device for a telescopic arm of a crossing platform, which avoids the occurrence of eccentric movement in the telescopic arm of the crossing platform through the design of multiple wear-resistant blocks, so as to improve the stability and durability of the operation of the mobile crossing platform.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0007] A lubricating device for a telescopic boom across a platform, comprising an inner sleeve and an outer sleeve that are slidably fitted;

[0008] Also includes a first wear-resistant block and a second wear-resistant block;

[0009] The lower end of the inner sleeve extends into the inner cavity of the outer sleeve through the upper end opening of the outer sleeve;

[0010] A plurality of first wear-resistant blocks are arranged on the outer side surface of the lower end of the inner sleeve along the circumferential direction, and the first wear-resistant blocks arranged opposite to each other are symmetrically arranged along the axis of the inner sleeve;

[0011] A plurality of second wear-resistant blocks are arranged on the inner side surface of the upper end of the outer sleeve along the circumferential direction, and the second wear-resistant blocks arranged opposite to each other are symmetrically arranged along the axis of the outer sleeve.

[0012] Preferably, a cover plate is provided at the upper end of the outer sleeve, and the lower end of the inner sleeve passes through the cover plate and extends into the inner cavity of the outer sleeve;

[0013] An outer flange is provided on one side of the second wear-resistant block close to the upper end opening of the outer sleeve. The outer flange of the second wear-resistant block is connected to the cover plate and is located between the cover plate and the inner sleeve.

[0014] Preferably, the outer end surface of the first wear-resistant block and / or the second wear-resistant block is provided with a groove.

[0015] Preferably, the groove is a diamond-shaped structure.

[0016] Preferably, the first wear-resistant block and / or the second wear-resistant block are made of nylon material.

[0017] Preferably, a countersunk hole is provided on the first wear-resistant block, a screw is installed in the countersunk hole, and the first wear-resistant block is connected to the lower end of the inner sleeve through the screw.

[0018] Preferably, the first wear-resistant block and / or the second wear-resistant block is provided with an oil filling hole, the oil filling hole is connected to an oil circuit, and the oil circuit is provided with an oil filling nozzle for injecting lubricating oil.

[0019] A mobile crossing platform is provided with the above-mentioned crossing platform telescopic arm lubrication device.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] As described above, the present invention relates to a lubricating device for a telescopic boom of a spanning platform, which is applied to a mobile spanning platform. The first wear-resistant blocks arranged relatively to each other are symmetrically arranged along the axis of the inner sleeve and slide relative to the outer sleeve as the inner sleeve slides; the second wear-resistant blocks arranged relatively to each other are symmetrically arranged along the axis of the outer sleeve, embedded between the inner sleeve and the outer sleeve, and are always in a stationary state relative to the outer sleeve; the design of multiple wear-resistant blocks can effectively avoid the occurrence of eccentric motion in the telescopic boom of the spanning platform, which not only ensures the smooth operation of the mobile spanning platform, but also is easy to install and disassemble, and easy to replace. In addition, the oil circuit of the lubricating device for the telescopic boom of the spanning platform ensures that the lubricating oil is delivered to each wear-resistant block, and the grooves provided on the wear-resistant blocks can store the lubricating oil and provide continuous lubrication, which greatly ensures the smoothness of the telescopic boom of the spanning platform during operation, while reducing the wear of the wear-resistant blocks caused by the sliding of the inner sleeve relative to the outer sleeve, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0023] Figure 1 This is a schematic diagram of the structure of the lubrication device for the telescopic boom across the platform according to the embodiment of the utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the lubrication device for the telescopic boom across the platform according to the embodiment of the utility model. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the structure of the lubrication device for the telescopic boom across the platform according to the embodiment of the utility model. Figure 3 ;

[0026] Figure 4 This is a schematic diagram of the structure of the lubrication device for the telescopic boom across the platform according to the embodiment of the utility model. Figure 4 ;

[0027] Figure 5 This is a schematic diagram of the structure of the lubrication device for the telescopic boom across the platform according to the embodiment of the utility model. Figure 5 ;

[0028] Figure 6 This is a schematic diagram of the structure of the lubrication device for the telescopic boom across the platform according to the embodiment of the utility model. Figure 6 ;

[0029] Figure 7 for Figure 6 Sectional view along line AA;

[0030] Figure 8 This is a schematic diagram of the partial structure of the first wear-resistant block and the inner sleeve of the embodiment of the utility model Figure 1 ;

[0031] Figure 9 This is a schematic diagram of the partial structure of the first wear-resistant block and the inner sleeve of the embodiment of the utility model Figure 2 ;

[0032] Figure 10 This is a schematic diagram of the partial structure of the first wear-resistant block and the inner sleeve of the embodiment of the utility model Figure 3 ;

[0033] Figure 11 The structure diagram of the second wear-resistant block and cover plate of the embodiment of the utility model is as follows: Figure 1 ;

[0034] Figure 12 The structure diagram of the second wear-resistant block and cover plate of the embodiment of the utility model is as follows: Figure 2 ;

[0035] Figure 13 The structure diagram of the second wear-resistant block and cover plate of the embodiment of the utility model is as follows: Figure 3 ;

[0036] Figure 14 for Figure 13 Cross-sectional view along line BB;

[0037] Figure 15 This is a schematic structural diagram of the first wear-resistant block in an embodiment of the present utility model;

[0038] Figure 16 This is a schematic structural diagram of the second wear-resistant block in an embodiment of the present utility model;

[0039] Among them, 11-inner sleeve, 12-outer sleeve, 13-screw rod, 14-nut, 15-cover plate, 21-first wear-resistant block, 22-second wear-resistant block, 23-oil filling hole, 24-groove. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0042] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0044] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0045] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0046] Example 1

[0047] like Figures 1 to 14 As shown, the lubricating device for the telescopic arm across the platform in this embodiment includes an inner sleeve 11 and an outer sleeve 12 that are slidably matched. The lower end of the inner sleeve 11 extends into the inner cavity of the outer sleeve 12 through the upper end opening of the outer sleeve 12.

[0048] In this embodiment, a nut 14 is sleeved onto a screw rod 13. An inner sleeve 11 is connected to the nut 14, and an outer sleeve 12 is nested outside the inner sleeve 11, with the inner sleeve 11 and outer sleeve 12 slidingly engaging with each other. A drive mechanism drives the screw rod 13 in forward or reverse rotation. This rotation of the screw rod 13 causes the nut 14 to reciprocate along the screw rod 13, thereby driving the inner sleeve 11 to slide relative to the outer sleeve 12, thereby extending or shortening the telescopic boom of the mobile spanning platform to adjust the posture of the mobile spanning platform.

[0049] In this embodiment, the lubricating device for the telescopic boom across the platform also includes: Figure 15 and Figure 16 The first wear-resistant block 21 and the second wear-resistant block 22 are shown. Several first wear-resistant blocks 21 are set along the circumferential direction on the outer side surface of the lower end of the inner sleeve 11, and the first wear-resistant blocks 21 arranged opposite to each other are symmetrically arranged along the axis of the inner sleeve 11. Several second wear-resistant blocks 22 are set along the circumferential direction on the inner side surface of the upper end of the outer sleeve 12, and the second wear-resistant blocks 22 arranged opposite to each other are symmetrically arranged along the axis of the outer sleeve 12. The multi-wear-resistant block design is more stable. The arrangement of the first wear-resistant blocks 21 and the second wear-resistant blocks 22 can reduce the occurrence of eccentric movement in the telescopic boom across the platform, ensuring its operational stability.

[0050] In this embodiment, a cover plate 15 is provided at the upper end of the outer sleeve, and the lower end of the inner sleeve passes through the cover plate 15 and extends into the inner cavity of the outer sleeve 12. A second wear block 22 is provided with an outer flange on the side near the upper opening of the outer sleeve. The outer flange of the second wear block 22 abuts the cover plate 15 and is located between the cover plate 15 and the inner sleeve 11. The embedded second wear block 22 is easy to install and replace.

[0051] In addition, the first wear block 21 has a countersunk hole into which a screw is installed, connecting the first wear block 21 to the lower end of the inner sleeve via the screw. Both the first wear block 21 and the second wear block 22 are removable and replaceable consumable parts. The presence of the wear blocks prevents wear caused by direct contact between the outer sleeve 12 and the inner sleeve 11, thereby extending the service life of the telescopic boom across the platform.

[0052] The first wear-resistant block 21 and the second wear-resistant block 22 are preferably made of nylon. Nylon has unique properties such as excellent wear resistance, impact resistance, chemical corrosion resistance, high temperature resistance, dimensional stability, and machinability. It can resist friction and wear and is particularly suitable for applications requiring durability. Wear-resistant blocks made of nylon generally maintain their appearance and function for a longer period of time.

[0053] In order to further improve the stability and durability of the mobile crossing platform, the outer end surfaces of the first wear-resistant block 21 and the second wear-resistant block 22 in this embodiment are further provided with grooves 24, which preferably adopt a diamond structure.

[0054] The first wear block 21 and the second wear block 22 are provided with oil holes 23. These holes 23 are connected to an oil circuit, which is equipped with an oil nipple for injecting lubricating oil. After the lubricating oil is injected through the oil nipple, it flows through the oil circuit to the oil holes 23, ensuring smooth operation of the telescopic boom across the platform, reducing wear on the wear blocks due to sliding, and lowering equipment maintenance costs.

[0055] The oil circuit in this embodiment includes an internal oil circuit and an external oil circuit.

[0056] Specifically, the internal oil circuit is provided in the inner cavity of the inner sleeve 11, and a first oil filling hole is provided on the first wear-resistant block 21. One end of the internal oil circuit is connected to the first oil filling hole, and a first oil filling nozzle is provided at the other end of the internal oil circuit. The lubricating oil injected by the first oil nozzle passes through the internal oil circuit to the first oil filling hole, which is used to provide lubrication for the first wear-resistant block 21 to reduce wear. The external oil circuit is provided on the outside of the outer sleeve, and a second oil filling hole is provided on the second wear-resistant block 22. One end of the external oil circuit is connected to the second oil filling hole, and a second oil filling nozzle is provided at the other end of the external oil circuit. The lubricating oil injected by the second oil nozzle passes through the external oil circuit to the second oil filling hole, which is used to provide lubrication for the second wear-resistant block 22. The internal oil circuit and the external oil circuit ensure that the lubricating oil can be delivered to each wear-resistant block to achieve a better lubrication effect.

[0057] It should be noted that the oil filling hole 23 is not limited to the preferred arrangement of the first oil filling hole and the second oil filling hole in this embodiment, and can also be opened separately on the first wear-resistant block 21 or the second wear-resistant block 22. Taking the example of setting the oil filling hole 23 separately on the first wear-resistant block 21, the first oil filling hole in this embodiment is the countersunk hole on the first wear-resistant block 21 where a screw is installed. The lubricating oil is transported to the countersunk hole on the first wear-resistant block 21 through the oil circuit and accumulates in the countersunk hole, and then diffuses to all positions where the first wear-resistant block 21 slides. The lubricating oil is transferred to the second wear-resistant block 22 through the sliding of the first wear-resistant block 21 relative to the outer sleeve 12, thereby providing lubrication for all wear-resistant blocks in the lubrication device of the telescopic boom across the platform.

[0058] The grooves 24 formed on the first wear-resistant block 21 and the second wear-resistant block 22 can be used to store lubricating oil, and the grooves 24 are connected to the oil filling hole 23. The lubricating oil injected from the oil filling hole 23 is stored in the grooves 24, providing continuous lubrication for the wear-resistant blocks, greatly ensuring the smoothness of the telescopic boom when crossing the platform.

[0059] Example 2

[0060] A mobile crossing platform is provided with the crossing platform telescopic arm lubrication device as described in Example 1.

[0061] The present invention relates to a lubricating device for a telescopic boom of a crossing platform, which is applied to a mobile crossing platform. A first wear-resistant block 21 is arranged on the outer surface of the lower end of the inner sleeve of the telescopic boom of the crossing platform, and slides with the inner sleeve 11 relative to the outer sleeve 12; a second wear-resistant block 22 is stepped and embedded between the inner sleeve 11 and the outer sleeve 12, and the second wear-resistant block 22 is always in a stationary state relative to the outer sleeve 12; the first wear-resistant blocks 21 arranged relatively are symmetrically arranged along the axis of the inner sleeve 11, and the second wear-resistant blocks 22 arranged relatively are symmetrically arranged along the axis of the outer sleeve 12. The design of multiple wear-resistant blocks not only ensures the smooth operation of the mobile crossing platform, but also facilitates installation and disassembly and replacement. In addition, the internal oil circuit and the external oil circuit integrated in the telescopic boom of the crossing platform ensure that the lubricating oil is delivered to each wear-resistant block, and the groove 24 opened on the wear-resistant block can store the lubricating oil and provide continuous lubrication, which greatly ensures the smoothness of the telescopic boom of the crossing platform during operation, while reducing the wear of the wear-resistant blocks caused by the sliding of the inner sleeve 11 relative to the outer sleeve 12, further reducing maintenance costs.

[0062] Thus far, this embodiment has been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the telescopic boom lubrication device for a spanning platform and the mobile spanning platform of the present invention. Of course, the above description is merely a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent structural transformations made within the scope of the present invention's design, utilizing the contents of the present invention's specification and drawings, or any direct or indirect application in other related technical fields, are included within the scope of the present invention's patent protection and should be protected by the present invention.

Claims

1. A lubricating device for a telescopic boom across a platform, comprising an inner sleeve and an outer sleeve that are slidably fitted; characterized in that: Also includes a first wear-resistant block and a second wear-resistant block; The lower end of the inner sleeve extends into the inner cavity of the outer sleeve through the upper end opening of the outer sleeve; A plurality of first wear-resistant blocks are arranged on the outer side surface of the lower end of the inner sleeve along the circumferential direction, and the first wear-resistant blocks arranged opposite to each other are symmetrically arranged along the axis of the inner sleeve; A plurality of second wear-resistant blocks are arranged on the inner side surface of the upper end of the outer sleeve along the circumferential direction, and the second wear-resistant blocks arranged opposite to each other are symmetrically arranged along the axis of the outer sleeve.

2. The lubricating device for telescopic boom across a platform according to claim 1, characterized in that: The upper end of the outer sleeve is provided with a cover plate, and the lower end of the inner sleeve passes through the cover plate and extends into the inner cavity of the outer sleeve; An outer flange is provided on one side of the second wear-resistant block close to the upper opening of the outer sleeve. The outer flange of the second wear-resistant block is connected to the cover plate and is located between the cover plate and the inner sleeve.

3. The lubricating device for telescopic boom across a platform according to claim 1, characterized in that: The outer end surface of the first wear-resistant block and / or the second wear-resistant block is provided with a groove.

4. The lubricating device for telescopic boom across a platform according to claim 3, characterized in that: The groove is a diamond-shaped structure.

5. The lubricating device for telescopic boom across a platform according to claim 1, characterized in that: The first wear-resistant block and / or the second wear-resistant block are made of nylon material.

6. The lubricating device for telescopic boom across a platform according to claim 1, characterized in that: A countersunk hole is provided on the first wear-resistant block, a screw is installed in the countersunk hole, and the first wear-resistant block is connected to the lower end of the inner sleeve through the screw.

7. The lubricating device for telescopic boom across a platform according to claim 1, characterized in that: The first wear-resistant block and / or the second wear-resistant block is provided with an oil filling hole, the oil filling hole is connected to an oil circuit, and the oil circuit is provided with an oil filling nozzle for injecting lubricating oil.

8. A mobile crossing platform, characterized in that: The mobile crossing platform is provided with a crossing platform telescopic boom lubrication device as described in any one of claims 1 to 7.

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