Power supply support and towing excavator

Abstract

The utility model provides a power supply support and a towed excavator, which belong to the technical field of towed excavators and comprise a stand column, a truss, a sliding assembly and a pipe clamp assembly. The truss is fixedly arranged on the stand column through the fixed adjusting support assembly. The sliding assembly comprises a sliding rail fixedly arranged on the truss, a plurality of tackles arranged on the sliding rail in a sliding mode and limiting assemblies arranged at the two ends of the sliding rail. The pipe clamp assembly is arranged in the height direction of the stand column so that the cable can supply power to the whole machine through the pipe clamp assembly and the tackle. By means of the power supply support, the cable does not need to be arranged on the ground or erected on the top of a plant, meanwhile, the stand columns and the trusses are adopted for supporting, the structure is simple, installation is convenient, the power supply support can conveniently move along with the working range of the power-driven excavator, and the moving flexibility and passing ability of the power-driven excavator are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of towed electric excavators, and particularly relates to a power supply bracket and a towed electric excavator. Background Technique

[0002] With the increasingly strict emission requirements for non-road mobile machinery by the state, the rapid development of engineering machinery electric technology, and the increasing environmental protection pressure, users' range anxiety about pure electric equipment has become increasingly intense. Towed electric excavators have the advantages of energy conservation, environmental protection, and low use cost, and are suitable for working conditions in relatively fixed places with a small moving range. Therefore, towed electric excavators have gradually come into everyone's view and become a new choice for users.

[0003] However, restricted by the power supply method, the mobility and passability of towed electric excavators are not good, resulting in users' dissatisfaction with towed electric excavators. Towed electric excavators connect external power such as grid power or external battery cars to the excavator through cables. The existing power supply methods of towed electric excavators usually include upper-body power supply and lower-body power supply. For specific places, such as towed electric excavators used for indoor car disassembly, due to oil stains, various scattered metals and other sundries on the ground, the cable has poor passability on the ground, and there are height restrictions such as walking trolleys (overhead cranes) above, so the power supply cable can neither be placed on the ground nor erected on the top of the workshop, which restricts the mobility and passability of towed electric excavators. Summary of the Utility Model

[0004] The embodiment of the utility model provides a power supply bracket and a towed electric excavator, aiming to solve the problems of poor flexibility and passability of towed electric excavators under the working conditions of small indoor moving ranges.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide a power supply bracket, including:

[0006] A column;

[0007] A truss, fixedly arranged on the column through a fixed adjustment bracket assembly;

[0008] A sliding assembly, including a slide rail fixedly arranged on the truss, a plurality of trolleys slidably arranged on the slide rail, and a limit assembly arranged at both ends of the slide rail; and

[0009] A pipe clamp assembly, arranged along the height direction of the column, so that the cable supplies power to the whole machine through the pipe clamp assembly and the trolley.

[0010] In combination with the first aspect, in an implementable manner, the truss includes a main beam and a secondary beam fixedly arranged above the main beam through a vertical rod. The secondary beam is obliquely arranged, and the included angle α formed between the secondary beam and the main beam satisfies α ≤ 20°. The main beam and the secondary beam are respectively fixedly arranged on the column through the fixed adjustment bracket assembly. A first mounting hole for mounting the slide rail is provided on the main beam.

[0011] In combination with the first aspect, in an implementable manner, mounting plates are respectively arranged at the same ends of the main beam and the secondary beam, and the mounting plates are fixed on the fixed adjustment bracket assembly.

[0012] In combination with the first aspect, in an implementable manner, reinforcing ribs are further arranged on the main beam and the secondary beam, and the reinforcing ribs are simultaneously fixed on the mounting plates.

[0013] In combination with the first aspect, in an implementable manner, the fixed adjustment bracket assembly includes a first clamp seat and a second clamp seat. The first clamp seat and the second clamp seat are fixed on the column through a first bolt pair. One end of the truss is fixed on the first clamp seat through a second bolt pair.

[0014] In combination with the first aspect, in an implementable manner, the limit assembly includes a limit plate and a pressing plate. The limit plate and the pressing plate are fixed on the slide rail through a third bolt pair. The limit plate has a bent portion bent upward, and the trolley stops moving when it contacts the bent portion.

[0015] In combination with the first aspect, in an implementable manner, the pipe clamp assembly includes two semi-circular pipe clamps. After the two semi-circular pipe clamps are connected through a fourth bolt pair, a wire passing hole for the cable to pass through is formed, and the pipe clamp assembly is fixed on the column through the fourth bolt pair.

[0016] In combination with the first aspect, in an implementable manner, two limit assemblies are arranged at one end of the slide rail close to the column, and the trolley close to the column is limited between the two limit assemblies.

[0017] In combination with the first aspect, in an implementable manner, the trolley is provided with a pulley that slides along the slide rail.

[0018] The power supply bracket provided by the present utility model has the following beneficial effects compared with the prior art: The column can be fixed within the working range of the moving excavator. The cable supplying power to the excavator can be arranged upward along the pipe clamp assembly on the column, and then connected to the electric control system of the whole machine through a pulley on the slide rail fixed at the upper end of the column to supply power to the whole machine. By using the power supply bracket provided by this application, the truss is fixed to the column in a cantilever manner, and power can be supplied with only one column, reducing the number of columns used. Moreover, the cable does not need to be arranged on the ground or installed on the top of the factory building. At the same time, with the support of the column and the truss, the structure is simple, the installation is convenient, and it is also convenient to move along with the working range of the excavator, improving the flexibility and passability of the power-supply trailing excavator during movement.

[0019] In a second aspect, the embodiment of the present utility model further provides a power-supply trailing excavator, including the above-mentioned power supply bracket.

[0020] For the power-supply trailing excavator provided by the present utility model, since such a flexible and convenient power supply bracket is configured for power supply, the working flexibility and applicability of the whole machine are greatly improved, and the user satisfaction is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the front view structural schematic diagram of the power supply bracket provided by the embodiment of the present utility model;

[0022] Figure 2 is Figure 1 the left view structural schematic diagram of the provided power supply bracket;

[0023] Figure 3 is Figure 1 the right view structural schematic diagram of the provided power supply bracket;

[0024] Figure 4 is Figure 1 the top view structural schematic diagram of the provided power supply bracket;

[0025] Figure 5 is Figure 1 the bottom view structural schematic diagram of the provided power supply bracket;

[0026] Figure 6 is Figure 1 the partial enlarged structural schematic diagram at A in ;

[0027] Figure 7 is Figure 1 the partial enlarged structural schematic diagram at B in ;

[0028] Figure 8 is the three-dimensional structural schematic diagram of the power supply bracket provided by the embodiment of the present utility model;

[0029] Figure 9Schematic front view structure of the truss provided by the embodiment of the present utility model;

[0030] Figure 10 For Figure 9 Schematic bottom view structure of the truss provided;

[0031] Figure 11 Schematic three - dimensional structure of the truss provided by the embodiment of the present utility model;

[0032] Figure 12 Schematic front view structure of the pulley provided by the embodiment of the present utility model;

[0033] Figure 13 For Figure 12 Schematic left view structure of the pulley provided;

[0034] Figure 14 For Figure 12 Schematic bottom view structure of the pulley provided;

[0035] Figure 15 Schematic three - dimensional structure of the pulley provided by the embodiment of the present utility model;

[0036] Figure 16 Schematic front view structure of the fixed adjustment bracket assembly provided by the embodiment of the present utility model;

[0037] Figure 17 For Figure 16 Schematic left view structure of the fixed adjustment bracket assembly provided;

[0038] Figure 18 For Figure 16 Schematic right view structure of the fixed adjustment bracket assembly provided;

[0039] Figure 19 For Figure 16 Schematic top view structure of the fixed adjustment bracket assembly provided;

[0040] Figure 20 Schematic three - dimensional structure of the fixed adjustment bracket assembly provided by the embodiment of the present utility model;

[0041] Figure 21 Schematic front view structure of the slide rail provided by the embodiment of the present utility model;

[0042] Figure 22 For Figure 21 Schematic right view structure of the slide rail provided;

[0043] Figure 23 For Figure 21 Schematic bottom view structure of the slide rail provided;

[0044] Figure 24Schematic front view structure diagram of the limit assembly provided by the embodiment of the present utility model;

[0045] Figure 25 is Figure 24 Schematic right view structure diagram of the limit assembly provided;

[0046] Figure 26 is Figure 24 Schematic top view structure diagram of the limit assembly provided;

[0047] Figure 27 Schematic three-dimensional structure diagram of the limit assembly provided by the embodiment of the present utility model;

[0048] Explanation of reference numerals:

[0049] 1, column; 101, fixed bottom plate; 102, anchor bolt hole; 2, fixed adjustment bracket assembly; 21, second clamp seat; 22, first clamp seat; 23, first bolt pair; 24, second bolt pair; 3, truss; 31, mounting plate; 32, secondary beam; 33, vertical rod; 34, main beam; 35, stiffening rib; 36, first mounting hole; 4, limit assembly; 41, limit plate; 411, bending part; 42, pressing plate; 43, third bolt pair; 5, pulley; 51, pulley frame; 52, wire clamp; 53, pulley; 6, slide rail; 61, second mounting hole; 7, pipe clamp assembly; 8, fifth bolt. Detailed implementation manners

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0051] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary-secondary or sequential relationship between these entities or operations.

[0052] Please refer to Figures 1 to 26 together, and now the power supply bracket provided by the present utility model will be described. The power supply bracket includes a column 1, a truss 3, a sliding assembly and a pipe clamp assembly 7.

[0053] See Figures 1 to 8 shown, the lower end of the column 1 is fixed to the ground by anchor bolts. The column 1 can be a cylinder or a multi-prism such as a quadrangular prism, a pentagonal prism or a hexagonal prism, etc. When the column 1 is a multi-prism, in the corresponding fixed adjustment bracket assembly 2, both the first clamp seat 22 and the second clamp seat 21 have polygonal grooves adapted to the multi-prism.

[0054] Among them, a fixed bottom plate 101 is provided at the lower end of the column 1, and anchor bolt holes 102 through which anchor bolts pass are provided on the fixed bottom plate 101. In order to improve the firmness of the lower end of the column 1, a triangular reinforcing plate is provided between the fixed bottom plate 101 and the column 1.

[0055] The truss 3 is fixedly arranged on the column 1 through the fixed adjustment bracket assembly 2. One end of the truss 3 is fixed on the column 1 to form a cantilever shape. Therefore, this device uses one column 1 for support, avoiding the interference of the column 1 with the work of the trailing cable excavator; the truss 3 supports the sliding assembly.

[0056] See Figures 1 to 8 、 Figures 22 to 27 , the sliding assembly includes a slide rail 6 fixedly arranged on the truss 3, a plurality of trolleys 5 slidably arranged on the slide rail 6, and a limit assembly 4 arranged at both ends of the slide rail 6; the trolleys 5 can reciprocate along the slide rail 6 as the trailing cable excavator works, and the limit assembly 4 limits the two extreme positions of the movement of the trolleys 5 to prevent the trolleys 5 from slipping off the slide rail 6.

[0057] The slide rail 6 can directly select C-shaped steel or channel steel, reducing the production cost and being simple to manufacture; the opening of the slide rail 6 faces downward, and the trolleys 5 are suspended on the slide rail 6.

[0058] See Figures 1 to 3 、 Figure 8 As shown in

[0059] , the pipe clamp assembly 7 is arranged along the height direction of the column 1 so that the cable supplies power to the whole machine through the pipe clamp assembly 7 and the trolley 5. Among them, a plurality of pipe clamp assemblies 7 are evenly distributed along the height direction of the column 1 to support and limit the running direction of the cable.

[0060] In some embodiments, see Figures 9 to 11As shown in the figure, the truss 3 includes a main beam 34 and a secondary beam 32 fixedly arranged above the main beam 34 through a vertical rod 33. The secondary beam 32 is arranged obliquely, and the included angle a formed between the secondary beam 32 and the main beam 34 is a ≤ 20°; the main beam 34 and the secondary beam 32 are respectively fixedly arranged on the column 1 through a fixed adjustment bracket assembly 2; a first installation hole 36 for installing the slide rail 6 is arranged on the main beam 34. The truss 3 of this application is cantilever-mounted and also needs to bear the weight of the cable. Therefore, the truss 3 needs to have a high support strength to ensure providing a horizontal support for the slide rail 6. Therefore, a secondary beam 32 is also arranged above the main beam 34. The length of the secondary beam 32 is shorter than that of the main beam 34. The secondary beam 32 and the main beam 34 are connected by vertical rods 33 that are successively shortened, so that an acute included angle is formed between the secondary beam 32 and the main beam 34, and thus the entire truss 3 forms a stable support of a triangular structure.

[0061] In this application, it is set that the included angle a between the secondary beam 32 and the main beam 34 is a ≤ 20° (see Figure 9 ), the main beam 34 is horizontally arranged, the main beam 34 is fixedly perpendicular to the column 1, and the secondary beam 32 is inclined at a certain angle to strengthen the main beam 34. However, if the included angle between the secondary beam 32 and the main beam 34 is too large, it will also cause the problem that the height of the column 1 needs to be increased, occupying the space of the factory building; therefore, the inclination angle of the secondary beam 32 does not need to be large.

[0062] Optionally, the included angle a between the secondary beam 32 and the main beam 34 is 20°, 15°, 10°, 8°, etc. The value of a can theoretically also be zero, which also has the effect of improving the bending strength of the main beam 34.

[0063] Furthermore, the vertical rod 33 can be welded between the main beam 34 and the secondary beam 32, or can be fixed by bolts. Among them, both the main beam 34 and the secondary beam 32 are selected from round steel or square steel, and can also be made of round tubes, square tubes or other section steels, for example, I-beams, channel steels, etc.; the column 1 can actually also be made of section steel.

[0064] Furthermore, the cross-section of the secondary beam 32 can be smaller than that of the main beam 34, or the cross-sectional areas can be the same.

[0065] A first installation hole 36 for installing the slide rail 6 is arranged on the main beam 34. Second installation holes 61 corresponding to the first installation hole 36 one by one are evenly distributed on the slide rail 6. The fifth bolt 8 passes through the second installation hole 61 and the first installation hole 36 to fix the slide rail 6 and the main beam 34 together. This installation is convenient for assembly and disassembly and is suitable for the device to be flexibly and quickly moved to other working sites. Among them, the distance between the second installation holes 61 is L1, and the total length of the slide rail is L, as Figure 23 shown.

[0066] In some embodiments, see Figures 9 to 11, mounting plates 31 are respectively arranged at the same ends of the main beam 34 and the secondary beam 32, and the mounting plates 31 are fixed to the fixed adjustment bracket assembly 2. Since the cross-sections of the main beam 34 and the secondary beam 32 are relatively small and it is not easy to fix them on the fixed adjustment bracket assembly 2, mounting plates 31 with a surface area larger than the cross-section are fixed at one end of the main beam 34 and the secondary beam 32. By increasing the contact area, the reliability of fixing the main beam 34 and the secondary beam 32 to the fixed adjustment bracket assembly 2 is improved, ensuring the accuracy of the whole machine's operation.

[0067] In some embodiments, refer to Figures 9 to 11 , reinforcing ribs 35 are also arranged on the main beam 34 and the secondary beam 32, and the reinforcing ribs 35 are simultaneously fixed to the mounting plates 31. The arrangement of the reinforcing ribs 35 can improve the strength of the main beam 34 and the secondary beam 32 at the fixed end. The reinforcing ribs 35 on the main beam 34 are symmetrically arranged. At the same time, the reinforcing ribs 35 on the secondary beam 32 are also symmetrically arranged.

[0068] Furthermore, an inclined reinforcing rod can be arranged between the main beam 34 and the column 1 to support the main beam 34 and improve the bending resistance performance of the main beam 34.

[0069] In some embodiments, refer to Figures 16 to 20 , the fixed adjustment bracket assembly 2 includes a first clamp seat 22 and a second clamp seat 21. The first clamp seat 22 and the second clamp seat 21 are fixed to the column 1 through a first bolt pair 23; one end of the truss 3 is fixed to the first clamp seat 22 through a second bolt pair 24. The installation position of the fixed adjustment bracket assembly 2 is adjustable and can be fastened at any position on the column 1 through the first bolt pair 23. When the column 1 is cylindrical, the first clamp seat 22 and the second clamp seat 21 enclose a circular hole wrapping the column 1; when the column 1 is a prism, polygonal grooves adapted to the prism are arranged on the first clamp seat 22 and the second clamp seat 21, and they can also wrap around the column 1.

[0070] Among them, a fixed surface with the same surface area as that of the mounting plate 31 is arranged on the first clamp seat 22 to cooperate with the fixing of the mounting plate 31 and improve the firmness of the truss 3 fixing.

[0071] Specifically, the first clamp seat 22 and the second clamp seat 21 are fixed to the column 1 through two sets of first bolt pairs 23; the mounting plate 31 and the first clamp seat 22 are fixed together through four sets of second bolt pairs 24 at four corners.

[0072] In some embodiments, refer to Figures 24 to 27, the limit assembly 4 includes a limit plate 41 and a pressure plate 42. The limit plate 41 and the pressure plate 42 are fixed to the slide rail 6 through a third bolt pair 43. The limit plate 41 has a bent portion 411 that bends upward. When the trolley 5 contacts the bent portion 411, it stops moving. Specifically, the limit plate 41 abuts against the upper surface of the opening of the slide rail 6, the third bolt pair 43 is arranged at the opening of the slide rail 6, the pressure plate 42 abuts against the lower surface of the opening of the slide rail 6, and the limit plate 41 and the pressure plate 42 can be fixed at the opening of the slide rail 6 up and down through the third bolt pair 43, so that the limit plate 41 forms a stop limit for the trolley 5.

[0073] The limit assembly 4 is detachably mounted on the slide rail 6 through the third bolt pair 43, which is convenient for pushing the trolley 5 into the slide rail 6 from one end.

[0074] Furthermore, a limit roller is provided on the bent portion 411 of the limit plate 41. When the trolley 5 touches the limit roller, it can stop moving.

[0075] Optionally, the limit assembly 4 can directly purchase a suitable type of travel switch and install it at both ends of the slide rail 6 to limit the trolley 5.

[0076] In some embodiments, refer to Figure 8 , Figures 12 to 15 , the pipe clamp assembly 7 includes two semi-circular pipe clamps. After the two semi-circular pipe clamps are connected through a fourth bolt pair, a wire passing hole for the cable to pass through is formed, and it is fixed to the column 1 through the fourth bolt pair. The pipe clamp assembly 7 is used to fix the cable along the column 1. Therefore, a plurality of pipe clamp assemblies 7 are arranged along the height direction of the column 1.

[0077] Optionally, the pipe clamp assembly 7 is a non-closed ring, and the opening of the non-closed ring is smaller than the diameter of the cable normally used on the electric drag excavator.

[0078] The pipe clamp assembly 7 can also be a pipe hoop, a wire clip, a hose clamp or other products that can fix the cable, and is not limited to the embodiments listed in this article.

[0079] In some embodiments, refer to Figure 8 , two limit assemblies 4 are provided at one end of the slide rail 6 close to the column 1. The trolley 5 close to the column 1 is limited between the two limit assemblies 4. The trolley 5 close to the column 1 is limited and does not move with the whole machine. The main function is to guide the cable led to the slide rail 6 through the column 1 onto the slide rail 6.

[0080] In some embodiments, refer to Figures 12 to 15 , the trolley 5 is provided with pulleys 53 that slide along the slide rail 6. The trolley 5 includes a trolley frame 51 and a wire clip 52 through which the cable passes. The wire clip 52 and the trolley frame 51 are fixed together through a fourth bolt pair. The pulleys 53 are arranged on both sides of the trolley frame 51. Among them, the wire clip 52 can adopt the structure of the pipe clamp assembly 7.

[0081] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not described in detail or recorded in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0082] Based on the same inventive concept, an embodiment of the present application further provides a towed power excavator, including the power supply bracket described above.

[0083] For the towed power excavator provided by the present utility model, since this flexible and convenient power supply bracket is configured for power supply, the working flexibility and applicability of the whole machine are greatly improved, and the user satisfaction is also improved.

[0084] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A power supply bracket, characterized in that: include: Column (1); The truss (3) is fixed on the column (1) by fixing and adjusting the bracket assembly (2); A sliding assembly comprises a sliding rail (6) fixedly mounted on the truss (3), a plurality of pulleys (5) slidably mounted on the sliding rail (6), and a limit assembly (4) mounted at both ends of the sliding rail (6); as well as The pipe clamp assembly (7) is arranged along the height direction of the column (1) so that the cables can supply power to the whole machine through the pipe clamp assembly (7) and the pulley (5).

2. The power supply bracket according to claim 1, characterized in that: The truss (3) comprises a main beam (34) and a secondary beam (32) fixedly mounted above the main beam (34) via a vertical rod (33); the secondary beam (32) is arranged obliquely and the angle a formed between the secondary beam (32) and the main beam (34) is ≤20°; the main beam (34) and the secondary beam (32) are respectively fixedly mounted on the vertical column (1) via the fixed adjustment bracket assembly (2); and a first mounting hole (36) for mounting the slide rail (6) is provided on the main beam (34).

3. The power supply bracket according to claim 2, characterized in that: The same end of the main beam (34) and the auxiliary beam (32) is respectively provided with a mounting plate (31), and the mounting plate (31) is fixed on the fixed adjustment bracket assembly (2).

4. The power supply bracket according to claim 3, characterized in that: The main beam (34) and the auxiliary beam (32) are also provided with reinforcing ribs (35), and the reinforcing ribs (35) are also fixed on the mounting plate (31).

5. The power supply bracket according to claim 1, characterized in that: The fixed adjustment bracket assembly (2) comprises a first clamp seat (22) and a second clamp seat (21), wherein the first clamp seat (22) and the second clamp seat (21) are fixed to the column (1) via a first bolt pair (23); one end of the truss (3) is fixed to the first clamp seat (22) via a second bolt pair (24).

6. The power supply bracket according to claim 1, characterized in that: The limiting assembly (4) comprises a limiting plate (41) and a pressure plate (42), wherein the limiting plate (41) and the pressure plate (42) are fixed to the slide rail (6) via a third bolt pair (43); the limiting plate (41) has a bending portion (411) bent upward, and the pulley (5) stops moving when it contacts the bending portion (411).

7. The power supply bracket according to claim 1, characterized in that: The pipe clamp assembly (7) comprises two semicircular pipe clamps, which are connected by a fourth bolt pair to form a wire hole for the cable to pass through, and are fixed to the column (1) by the fourth bolt pair.

8. The power supply bracket according to claim 1, characterized in that: Two limiting assemblies (4) are arranged at one end of the slide rail (6) close to the column (1), and the pulley (5) close to the column (1) is limited between the two limiting assemblies (4).

9. The power supply bracket according to claim 1, characterized in that: The pulley (5) is provided with a pulley (53) which slides along the slide rail (6).

10. A towed electric excavator, characterized in that: It comprises a power supply bracket as described in any one of claims 1 to 9.

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