A cable-operated mobile power supply mechanism

Abstract

This invention relates to a mobile cable power supply mechanism, comprising a support frame, a primary reel, a secondary reel, a primary pull rope, a secondary pull rope, a power supply cable, a tension spring, and a pulley system. One end of the primary pull rope is fixed to the second reel, and the other end is fixed to the third reel. One end of the secondary pull rope is fixed to the fourth reel, and the other end passes through each fixed pulley and a movable pulley in sequence before being fixed to the support frame. The movable pulley is fixedly mounted on a movable pulley bracket, which is fixedly connected to the bottom of the support frame via a tension spring. One end of the power supply cable is fixedly wound around the first reel and electrically connected to a conductive slip ring, while the other end is fixedly connected to a power supply cable bracket. This mobile cable power supply mechanism achieves automatic cable winding and unwinding through tension spring energy storage. It has a simple structure, small size, and light weight, and can be installed on electrical equipment, expanding the applicability of power cable power supply.

Description

Technical Field

[0001] This invention relates to the field of power transmission technology, and in particular to a cable-based mobile power supply mechanism. Background Technology

[0002] Currently, powering small-scale mobile electrical equipment is mainly achieved through electric cable reels. Electric cable reels require conductive slip rings, torque motors, and torque sensors. Their complex structure, high cost, and poor reliability make them unsuitable for practical applications.

[0003] The applicant of this application previously disclosed a mobile power supply device that uses heavy-load energy storage to automatically retract and extend cables. This device has a simple structure and low manufacturing cost. However, it occupies a large area and is heavy, limiting its applicability. Summary of the Invention

[0004] To overcome the defects and shortcomings of the prior art, the present invention provides a cable moving power supply mechanism. This cable moving power supply mechanism realizes the automatic extension and retraction of the power supply cable through spring energy storage. It has a simple structure, small size, and light weight, and can be installed on electrical equipment, thus expanding the application range of power supply cables.

[0005] To achieve the above objectives, the technical solution of the present invention is a cable-driven mobile power supply mechanism, comprising:

[0006] A support frame, wherein a primary winding spool and a secondary winding spool are installed at intervals on the top of the support frame;

[0007] The primary winding reel includes a first winding reel, a second winding reel, and a conductive slip ring connected coaxially.

[0008] The secondary winding reel includes a third winding reel and a fourth winding reel connected coaxially.

[0009] A pulley system, comprising at least one fixed pulley and at least one movable pulley, wherein the fixed pulley is fixedly mounted on the upper part of the support frame, and the movable pulley is fixedly mounted on a movable pulley frame, the movable pulley frame being located inside the support frame and fixedly connected to the bottom of the support frame by a tension spring;

[0010] A primary pull rope, one end of which is fixedly wound around the second reel, and the other end of which is fixedly wound around the third reel;

[0011] A secondary pull rope, one end of which is fixedly wound around the fourth reel, and the other end passes through the groove of the fixed pulley and the groove of the movable pulley in sequence before being fixed to the upper part of the support frame;

[0012] A power supply cable, one end of which is fixedly wound on the first reel and electrically connected to the conductive slip ring, and the other end is connected to a power supply cable bracket and suspended above the ground through the power supply cable bracket.

[0013] In some embodiments, the first reel, the second reel, and the conductive slip ring are coaxially fixedly connected via a first connecting shaft, and the third reel and the fourth reel are coaxially fixedly connected via a second connecting shaft, wherein the first connecting shaft is parallel to the second connecting shaft.

[0014] In some embodiments, the primary winding reel is fixedly mounted on the top of the support frame via a first bearing seat, and the secondary winding reel is fixedly mounted on the top of the support frame via a second bearing seat.

[0015] In some embodiments, the diameter of the first reel is greater than the diameter of the second reel, and the diameter of the third reel is greater than the diameter of the fourth reel.

[0016] In some embodiments, there are multiple fixed pulleys and multiple movable pulleys. The multiple fixed pulleys are simultaneously fixedly installed on the upper part of the support frame, and the multiple movable pulleys are simultaneously fixedly installed on the movable pulley frame and fixedly connected to the bottom of the support frame by the tension spring.

[0017] In some embodiments, the support frame is rotatably mounted on the electrical equipment via a rotary support platform, and the power cable bracket is fixed to the ground or a wall.

[0018] In some embodiments, the second reel is replaced by the first gear, and the third reel is replaced by the second gear. The first gear and the second gear mesh and drive each other, and the diameter of the first gear is smaller than the diameter of the second gear.

[0019] In some embodiments, the pulley block is eliminated, one end of the secondary pull rope is fixedly wound on the fourth reel, and the other end is directly connected to the tension spring.

[0020] In some embodiments, the grooves of the plurality of fixed pulleys are arranged in a straight line, and the grooves of the plurality of movable pulleys are arranged in a straight line.

[0021] In some embodiments, the plurality of fixed pulleys are fixedly mounted on the upper part of the support frame via any connecting shaft, and the plurality of movable pulleys are fixedly mounted on the movable pulley frame via another connecting shaft.

[0022] In some embodiments, the plurality of fixed pulleys are respectively suspended from the upper part of the support frame by ropes, and the grooves of the plurality of movable pulleys are parallel to each other and are simultaneously fixedly installed on the same connecting shaft.

[0023] In some embodiments, both the primary pull rope and the secondary pull rope are flat strips or round ropes.

[0024] In some embodiments, the power supply cable is a multi-core flat cable or a multi-core round cable.

[0025] In some embodiments, the electrical equipment is any one of an electric loader, an electric excavator, an electric forklift, an electric flatcar, an electric tunneling machine, an electric drilling machine, an electric rotary drilling rig, and an electric bulldozer.

[0026] Compared with the prior art, the advantages of the cable mobile power supply mechanism of the present invention are that it is small in size and light in weight, can be installed on electrical equipment, and has a wide range of applications. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of a cable-driven mobile power supply mechanism provided in some embodiments of this application;

[0029] Figure 2 This is a schematic diagram of the structure of a primary winding reel in a cable-moving power supply mechanism provided in some embodiments of this application.

[0030] Figure 3 This is a schematic diagram of the structure of the secondary winding reel in a cable-moving power supply mechanism provided in some embodiments of this application. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixing" can refer to the connection between two parts where their relative positional relationship remains unchanged. The directional terms mentioned in the embodiments of this application, such as "upper," "lower," "left," "right," "front," "rear," "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. The directional terms are used to better and more clearly explain and understand the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the embodiments of this application.

[0033] It should be understood that although the terms first, second, third, etc., may be used to describe embodiments of this disclosure, these should not be limited to these terms. These terms are used only to distinguish them. For example, first may also be referred to as second without departing from the scope of embodiments of this disclosure, and similarly, second may also be referred to as first.

[0034] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the article or device that includes said element.

[0035] Example 1:

[0036] like Figure 1-3 As shown. Figure 1 A structural schematic diagram of the cable-driven power supply mechanism of this embodiment is disclosed. The cable-driven power supply mechanism includes a support frame 1, a primary winding reel 2, a secondary winding reel 3, a pulley block 4, a primary pull rope 5, a secondary pull rope 6, a power supply cable 7, a power supply cable bracket 8, a movable pulley frame 9, and a tension spring 10. The support frame 1 is a rectangular frame structure. The primary winding reel 2 and the secondary winding reel 3 are fixedly and spaced apart on the top of the support frame 1. Figure 2 A schematic diagram of the structure of the primary winding reel 2 in this embodiment is disclosed. Figure 3A schematic diagram of the secondary winding reel 3 in this embodiment is disclosed. The primary winding reel 2 includes a first winding reel 2.1, a second winding reel 2.2, and a conductive slip ring 2.3, all coaxially connected. The secondary winding reel 3 includes a third winding reel 3.1 and a fourth winding reel 3.2, both coaxially connected. Specifically, the primary winding reel 2 is fixedly mounted on the top of the support frame 1 via a first bearing seat 11, and the secondary winding reel 3 is fixedly mounted on the top of the support frame 1 via a second bearing seat 12. The pulley block 4 includes at least one fixed pulley 4.1 and at least one movable pulley 4.2. The fixed pulley 4.1 is fixedly mounted on the upper part of the support frame 1 and is located inside the support frame 1. The movable pulley 4.2 is fixedly mounted on a movable pulley frame 9 and is also located inside the support frame 1. The movable pulley frame 9 is located inside the support frame 1 and is fixedly connected to the bottom of the support frame 1 via a tension spring 10. One end of the primary pull rope 5 is fixedly wound around the second winding reel 2.2, and the other end is fixedly wound around the third winding reel 3.1. One end of the secondary pull rope 6 is fixedly wound around the fourth reel 3.2, and the other end passes through the grooves of the fixed pulley 4.1 and the movable pulley 4.2 in sequence before being fixed to the upper part of the support frame 1. One end of the power supply cable 7 is fixedly wound around the first reel 2.1 and electrically connected to the conductive slip ring 2.3, and the other end is connected to the power supply cable bracket 8 and suspended above the ground. The support frame 1 is rotatably mounted on the electrical equipment 16 via the rotary support platform 15. The power supply cable bracket 8 is fixed to the ground or a wall. In some embodiments, the electrical equipment 16 is any one of an electric loader, electric excavator, electric forklift, electric flatcar, electric tunneling machine, electric drilling machine, electric rotary drilling rig, or electric bulldozer, and is not limited thereto. In some embodiments, both the primary pull rope 5 and the secondary pull rope 6 are flat strips or round ropes. The power supply cable 7 is a multi-core flat cable or a multi-core round cable.

[0037] The beneficial effects of the cable-driven power supply mechanism provided in this embodiment include at least the following: the power supply cable 7, after being suspended above the ground by the power supply cable bracket 8 and the support frame 1, supplies power to any electrical device 16, avoiding the damage that would occur if the power supply cable 7 were placed on the ground. Furthermore, suspending the power supply cable 7 expands the operating range of the electrical device 16 without being affected by it being placed on the ground. Taking an electric excavator as an example, if the power supply cable 7 is placed on the ground to supply power to the electric excavator, the excavator would need to avoid the power supply cable 7 laid on the ground during digging operations, which is inconvenient. In this embodiment, by simultaneously installing a primary reel 2 and a secondary reel 3 on the support frame 1, along with a pulley system 4 installed within the support frame 1, the transmission and automatic extension / retraction of the power supply cable 7 are achieved, facilitating the operation of the electrical device 16.

[0038] In this embodiment, the first reel 2.1, the second reel 2.2, and the conductive slip ring 2.3 are coaxially fixedly connected via the first connecting shaft 13. The first reel 2.1 and the second reel 2.2 are fixedly connected. The third reel 3.1 and the fourth reel 3.2 are coaxially fixedly connected via the second connecting shaft 14. The third reel 3.1 and the fourth reel 3.2 are fixedly connected. The first connecting shaft 13 is parallel to the second connecting shaft 14. Further, in this embodiment, there are two first bearing seats 11, which are respectively installed at both ends of the first connecting shaft 13. There are two second bearing seats 12, which are respectively installed at both ends of the second connecting shaft 14. The diameter of the first reel 2.1 is larger than the diameter of the second reel 2.2. The diameter of the third reel 3.1 is larger than the diameter of the fourth reel 3.2.

[0039] In some implementations, there are multiple fixed pulleys 4.1 and multiple movable pulleys 4.2. Multiple fixed pulleys 4.1 are simultaneously fixedly installed on the upper part of the support frame 1. Multiple movable pulleys 4.2 are simultaneously fixedly installed on the movable pulley frame 9 and are fixedly connected to the bottom of the support frame 1 via tension springs 10. Multiple fixed pulleys 4.1 and multiple movable pulleys 4.2 can effectively reduce the stress on the power supply cable 7, the primary pull rope 5, and the secondary pull rope 6. In this embodiment, the number of fixed pulleys 4.1 is two, three, four, or five, and is not limited here. Similarly, the number of movable pulleys 4.3 is two, three, four, or five, and is not limited here.

[0040] Example 2:

[0041] In this embodiment, unlike Embodiment 1, the second winding spool 2.2 is replaced by the first gear, and the third winding spool 3.1 is replaced by the second gear. The first gear meshes with the second gear for transmission. The diameter of the first gear is smaller than the diameter of the second gear. This structural design effectively improves the transmission accuracy of the winding spools.

[0042] Example 3:

[0043] The difference between this embodiment and Embodiment 1 is that the grooves of the multiple fixed pulleys 4.2 are arranged in a straight line. The grooves of the multiple movable pulleys 4.3 are also arranged in a straight line.

[0044] Example 4:

[0045] In this embodiment, unlike in embodiment 1, multiple fixed pulleys 4.1 are fixedly mounted on the upper part of the support frame 1 via any connecting shaft, and multiple movable pulleys 4.2 are fixedly mounted on the movable pulley frame 9 via another connecting shaft.

[0046] Example 5:

[0047] In this embodiment, unlike in embodiment 1, multiple fixed pulleys 4.1 are suspended from the upper part of the support frame 1 by ropes, and the grooves of multiple movable pulleys 4.2 are parallel to each other and are simultaneously fixedly installed on the same connecting shaft.

[0048] Example 6:

[0049] In this embodiment, unlike in embodiment 1, the pulley block 4 is removed, one end of the secondary pull rope 6 is fixedly wound on the fourth reel 3.2, and the other end is connected to the tension spring 10.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

[0051] Upon reading this specification, those skilled in the art will readily recognize that this invention is constituted by a combination of prior art. Some of these prior art elements constituting various parts of this invention are described in detail herein, while others are omitted for the sake of brevity, yet their meaning will be readily understood by those skilled in the art. Furthermore, it will be readily apparent to those skilled in the art that the combination of these prior art elements to constitute this invention represents a significant amount of creative effort and is the culmination of years of theoretical analysis and extensive experimentation by the inventors. Those skilled in the art will also recognize from this specification that every technical solution and any combination of features disclosed herein is part of this invention.

Claims

1. A cable-driven mobile power supply mechanism, characterized in that, include: A support frame, wherein a primary winding spool and a secondary winding spool are installed at intervals on the top of the support frame; The primary winding reel includes a first winding reel, a first gear, and a conductive slip ring that are coaxially connected. The secondary winding reel includes a second gear and a fourth winding reel connected coaxially. A pulley system, comprising at least one fixed pulley and at least one movable pulley, wherein the fixed pulley is fixedly mounted on the upper part of the support frame, and the movable pulley is fixedly mounted on a movable pulley frame, the movable pulley frame being located inside the support frame and fixedly connected to the bottom of the support frame by a tension spring; The first gear and the second gear mesh and drive each other, with the diameter of the first gear being smaller than the diameter of the second gear; A secondary pull rope, one end of which is fixedly wound around the fourth reel, and the other end passes through the groove of the fixed pulley and the groove of the movable pulley in sequence before being fixed to the upper part of the support frame; A power supply cable, one end of which is fixedly wound on the first reel and electrically connected to the conductive slip ring, and the other end is connected to a power supply cable bracket and suspended above the ground through the power supply cable bracket.

2. The cable-driven mobile power supply mechanism as described in claim 1, characterized in that, The first winding reel, the first gear, and the conductive slip ring are coaxially and fixedly connected via a first connecting shaft. The second gear and the fourth winding reel are coaxially and fixedly connected via a second connecting shaft. The first connecting shaft is parallel to the second connecting shaft.

3. The cable-driven mobile power supply mechanism as described in claim 1, characterized in that, The primary winding reel is fixedly mounted on the top of the support frame via a first bearing seat, and the secondary winding reel is fixedly mounted on the top of the support frame via a second bearing seat.

4. The cable-operated mobile power supply mechanism as described in claim 1 or 2, characterized in that, The diameter of the first reel is larger than the diameter of the first gear, and the diameter of the second gear is larger than the diameter of the fourth reel.

5. The cable-driven mobile power supply mechanism as described in claim 1, characterized in that, The number of fixed pulleys and movable pulleys is multiple. The multiple fixed pulleys are simultaneously fixedly installed on the upper part of the support frame, and the multiple movable pulleys are simultaneously fixedly installed on the movable pulley frame and fixedly connected to the bottom of the support frame through the tension spring.

6. The cable-driven mobile power supply mechanism as described in claim 1, characterized in that, The support frame is rotatably mounted on the electrical equipment via a rotary support platform, and the power supply cable bracket is fixed to the ground or wall.

7. The cable-driven mobile power supply mechanism as described in claim 1, characterized in that, The pulley block was removed, and one end of the secondary pull rope was fixedly wound around the fourth reel, while the other end was directly connected to the tension spring.

8. The cable-driven mobile power supply mechanism as described in claim 5, characterized in that, The grooves of the multiple fixed pulleys are arranged in a straight line, and the grooves of the multiple movable pulleys are also arranged in a straight line.

9. The cable-driven mobile power supply mechanism as described in claim 5, characterized in that, The plurality of fixed pulleys are fixedly mounted on the upper part of the support frame via a connecting shaft, and the plurality of movable pulleys are fixedly mounted on the movable pulley frame via another connecting shaft.

10. The cable-driven power supply mechanism as described in claim 5, characterized in that, The multiple fixed pulleys are suspended from the upper part of the support frame by ropes, and the grooves of the multiple movable pulleys are parallel to each other and are simultaneously fixedly installed on the same connecting shaft.

11. The cable-driven mobile power supply mechanism as described in claim 1, characterized in that, The secondary tension ropes are all flat strips or round ropes.

12. The cable-driven mobile power supply mechanism as described in claim 1, characterized in that, The power supply cable is a multi-core flat cable or a multi-core round cable.

13. The cable-driven mobile power supply mechanism as described in claim 6, characterized in that, The electrical equipment is any one of the following: electric loader, electric excavator, electric forklift, electric flatcar, electric tunneling machine, electric drilling machine, electric rotary drilling rig, and electric bulldozer.

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