Grounding protection device and traction system

Abstract

The utility model provides a grounding protection device and a traction system, the grounding protection device comprises a traction rope, one end of which is connected with a traction machine; a support frame which is provided with a grounding lead; the first pulley is arranged on the supporting frame, the traction rope is wound through the first pulley so that the other end of the traction rope can be connected with the cable, and the height of the first pulley in the vertical direction can be adjusted; and the monitoring part is used for collecting electric field signals around the traction rope so as to monitor the electrification condition of the traction rope in real time. According to the utility model, the problem that workers are easy to get an electric shock in the cable laying process in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable laying, and more specifically, to a grounding protection device and a traction system. Background Technique

[0002] Traction-type mechanized cable laying has become the main construction form in current distribution network line projects. The tractor is connected to the cable to be laid through a traction rope, a wire mesh sleeve, so that the tractor drives the entire cable to run on the wire guiding pulley. During the cable laying process, the outer skin of the cable is prone to damage in harsh operating environments such as humidity and high corrosion, resulting in cable leakage. In addition, the traction rope and the wire mesh sleeve are also prone to scratching the cable during movement, resulting in cable leakage, which in turn causes the traction rope and the wire mesh to be electrified, causing the tractor to be electrified, and further causing the risk of electric shock to the staff. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a grounding protection device and a traction system to solve the problem of easy electric shock to the staff during the cable laying process in the prior art.

[0004] To achieve the above purpose, according to one aspect of the utility model, a grounding protection device is provided. The grounding protection device includes: a traction rope, one end of the traction rope is connected to the tractor; a support frame, on which a grounding wire is provided; a first pulley, the first pulley is arranged on the support frame, and the traction rope is wound around and passes through the first pulley so that the other end of the traction rope is connected to the cable. The height of the first pulley in the vertical direction is adjustable; a monitoring member, which is used to collect the electric field signal around the traction rope to monitor the electrified situation of the traction rope in real time.

[0005] Furthermore, the grounding protection device further includes: a second pulley and a third pulley, the second pulley and the third pulley are arranged on the support frame at intervals in the horizontal direction, and the first pulley is arranged between the second pulley and the third pulley, so that the traction rope is wound around and passes through the third pulley, the first pulley and the second pulley in sequence and then connected to the cable; in the vertical direction, the height of the second pulley is the same as that of the third pulley, and the height of the first pulley is greater than that of the second pulley.

[0006] Furthermore, the grounding protection device further includes a base, the base is arranged on the installation base surface, the support frame includes a first support rod, a second support rod and a fourth support rod, the first support rod extends in the horizontal direction, the second support rod and the fourth support rod both extend in the vertical direction, the second support rod and the fourth support rod are both arranged on the base, the first support rod is arranged between the second support rod and the fourth support rod, a connecting snap ring is arranged on the second support rod, the grounding wire is hung on the connecting snap ring, and the monitoring member is arranged on the fourth support rod.

[0007] Further, the grounding protection device further includes a connecting frame disposed on the support frame. The connecting frame includes a top plate and a bottom plate, the top plate and the bottom plate are spaced apart in the vertical direction, both the bottom plate and the top plate extend in the horizontal direction, the length of the bottom plate is greater than the length of the top plate, the second pulley and the third pulley are respectively disposed at two ends of the bottom plate, and the first pulley is movably disposed on the top plate.

[0008] Further, the connecting frame further includes two side plates, the two side plates are oppositely disposed in the horizontal direction between the bottom plate and the top plate, each side plate extends in the vertical direction, and each side plate is connected to the first support rod of the support frame.

[0009] Further, the grounding protection device further includes a connecting frame, the connecting frame includes a first plate body, a second plate body and a third plate body, two ends of the first plate body are respectively connected to the second plate body and the third plate body, both the second plate body and the third plate body extend in the vertical direction, the first plate body extends in the horizontal direction, the first plate body is connected to the top plate of the connecting frame, and the rotating shaft of the first pulley passes through the second plate body and the third plate body to connect the first pulley with the connecting frame.

[0010] Further, the grounding protection device further includes a transmission rod extending in the vertical direction. The transmission rod is movably disposed through the top plate of the connecting frame, and the transmission rod is disposed through the first plate body to connect the transmission rod with the connecting frame. The transmission rod is reciprocally movably disposed in the vertical direction to adjust the height of the first pulley in the vertical direction.

[0011] Further, the grounding protection device further includes a transmission block, a transmission lead screw and a driving member. The transmission lead screw extends in the vertical direction. The transmission block is connected to the third plate body, the transmission block is movably sleeved on the transmission lead screw, and the driving member is drivingly connected to the transmission lead screw to drive the transmission lead screw to rotate around the axis of the transmission lead screw, so that the transmission lead screw drives the transmission block to reciprocate in the vertical direction.

[0012] Further, the grounding protection device further includes an alarm member and a controller. The alarm member is communicatively connected to the controller, and the monitoring member is communicatively connected to the controller, so that the controller controls the alarm member to issue an alarm according to the acquisition result of the monitoring member.

[0013] According to another aspect of the present invention, a traction system is provided, including a traction machine and the above-mentioned grounding protection device.

[0014] Applying the technical solution of the present utility model, the grounding protection device includes a traction member, a support frame, a first pulley and a monitoring member. The first pulley is arranged on the support frame, and the traction rope is wound around and passes through the first pulley to be connected to the cable, so that the support frame can support the first pulley, and the first pulley can support and guide the traction rope. By adjusting the height of the first pulley in the vertical direction, the tightness of the traction rope and the degree of adhesion between the traction rope and the first pulley can be changed, avoiding the traction rope from falling off the first pulley and ensuring the electrical conductivity reliability between the traction rope and the first pulley; by monitoring the electrified situation of the traction rope in real time through the monitoring member, it helps the staff to timely discover that the cable is damaged and the traction rope is electrified, and repair the cable in time; by arranging a grounding wire on the support frame, when the traction rope is damaged and electrified, the grounding wire can conduct the current transmitted by the traction rope to the support frame into the ground, avoiding the current from flowing into the traction member and causing electric shock to the staff, thus solving the problem that it is easy to cause electric shock to the staff during the cable laying process in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The schematic drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0016] Figure 1 The front view structural schematic diagram of the grounding protection device according to the embodiment of the present utility model is shown;

[0017] Figure 2 The top view structural schematic diagram of the grounding protection device according to the embodiment of the present utility model is shown.

[0018] Among them, the above-mentioned drawings include the following reference numerals:

[0019] 6, handle; 30, support frame; 11, grounding wire; 12, first pulley; 13, second pulley; 14, third pulley; 20, monitoring member; 31, first support rod; 32, second support rod; 33, base; 34, fourth support rod; 41, connecting frame; 42, top plate; 43, bottom plate; 44, side plate; 51, connecting frame; 52, second plate body; 61, transmission rod; 62, connecting snap ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] It should be noted that the terms used here are only for describing the specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0021] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0022] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0023] Please refer to Figure 1 and Figure 2 , the present utility model provides a grounding protection device, the grounding protection device comprising: a towing rope, one end of the towing rope being connected to a towing machine; a support frame 30, on which a grounding wire 11 is provided; a first pulley 12, the first pulley 12 being provided on the support frame 30, the towing rope being wound around and passing through the first pulley 12 so that the other end of the towing rope is connected to a cable, the height of the first pulley 12 in the vertical direction being adjustably provided; and a monitoring member 20, the monitoring member 20 being used for collecting the electric field signal around the towing rope to monitor the electrified condition of the towing rope in real time.

[0024] The grounding protection device of the present utility model includes a traction member, a support frame 30, a first pulley 12 and a monitoring member 20. The first pulley 12 is arranged on the support frame 30, and the traction rope is wound around and passes through the first pulley 12 to be connected to the cable, so that the support frame 30 can support the first pulley 12, and the first pulley 12 can support and guide the traction rope. By adjusting the height of the first pulley 12 in the vertical direction, the tightness of the traction rope and the degree of adhesion between the traction rope and the first pulley 12 can be changed, avoiding the traction rope falling off from the first pulley 12 and ensuring the conductive reliability between the traction rope and the first pulley 12; by the monitoring member 20, the electrified situation of the traction rope is monitored in real time, which helps the staff to timely discover that the cable is damaged and the traction rope is electrified, and repair the cable in time; by arranging a grounding wire 11 on the support frame 30, when the traction rope is damaged and electrified, the grounding wire 11 can conduct the current transmitted by the traction rope to the support frame 30 into the ground, avoiding the current flowing into the traction member and causing electric shock to the staff, thus solving the problem that the staff is prone to electric shock during the cable laying process in the prior art.

[0025] In this embodiment, the grounding protection device further includes: a second pulley 13 and a third pulley 14. The second pulley 13 and the third pulley 14 are arranged on the support frame 30 at intervals in the horizontal direction. The first pulley 12 is arranged between the second pulley 13 and the third pulley 14, so that the traction rope is wound around and passes through the third pulley 14, the first pulley 12 and the second pulley 13 in sequence and then connected to the cable; in the vertical direction, the height of the second pulley 13 is the same as that of the third pulley 14, and the height of the first pulley 12 is greater than that of the second pulley 13.

[0026] Specifically, the third pulley 14, the first pulley 12 and the second pulley 13 are jointly used to support and guide the traction rope. The height of the second pulley 13 is the same as that of the third pulley 14, and the height of the first pulley 12 is greater than that of the second pulley 13, so that the length of the traction rope between the first pulley 12 and the second pulley 13 increases, and the length of the traction rope between the first pulley 12 and the third pulley 14 increases. Furthermore, it can avoid the traction rope from being too loose, resulting in poor adhesion between the traction rope and the third pulley 14, the first pulley 12 and the second pulley 13, and causing the traction rope to fall off from the third pulley 14, the first pulley 12 and the second pulley 13 during the process of the traction rope being pulled by the traction member. Furthermore, it ensures full contact between the traction rope and the third pulley 14, the first pulley 12 and the second pulley 13, and full conductivity between the traction rope and the third pulley 14, the first pulley 12 and the second pulley 13.

[0027] Specifically, the third pulley 14, the first pulley 12 and the second pulley 13 are all made of aluminum alloy.

[0028] Specifically, the third pulley 14, the first pulley 12, and the second pulley 13 have the same radius; the height of the first pulley 12 refers to the distance between the axis of the first pulley 12 and the installation base surface (i.e., the ground) in the vertical direction; the height of the second pulley 13 refers to the distance between the axis of the second pulley 13 and the installation base surface (i.e., the ground) in the vertical direction; the height of the third pulley 14 refers to the distance between the axis of the third pulley 14 and the installation base surface (i.e., the ground) in the vertical direction.

[0029] In this embodiment, the grounding protection device further includes a base 33, the base 33 is arranged on the installation base surface, the support frame 30 includes a first support rod 31, a second support rod 32, and a fourth support rod 34. The first support rod 31 extends in the horizontal direction, the second support rod 32 and the fourth support rod 34 both extend in the vertical direction. The second support rod 32 and the fourth support rod 34 are both arranged on the base 33, the first support rod 31 is arranged between the second support rod 32 and the fourth support rod 34. A connection clamp 62 is arranged on the second support rod 32, the grounding wire 11 is hung on the connection clamp 62, and the monitoring member 20 is arranged on the fourth support rod 34.

[0030] Specifically, the base 33 is used to support the support frame 30; the second support rod 32 is used to install the connection clamp 62. By hanging the grounding wire 11 on the connection clamp 62, the grounding wire 11 is connected to the support frame 30, ensuring that the grounding wire 11 can conduct the current in the support frame 30; the fourth support rod 34 is used to support the monitoring member 20.

[0031] Specifically, the support frame 30 is made of aluminum alloy with high tensile strength, not easily corroded, and excellent resistivity; the base 33 is made of aluminum alloy; the grounding wire 11 is a copper wire with a cross-sectional area of 25mm * 2mm.

[0032] In this embodiment, the grounding protection device further includes a connection frame 41, the connection frame 41 is arranged on the support frame 30, the connection frame 41 includes a top plate 42 and a bottom plate 43. The top plate 42 and the bottom plate 43 are arranged at intervals in the vertical direction. The bottom plate 43 and the top plate 42 both extend in the horizontal direction. The length of the bottom plate 43 is greater than the length of the top plate 42. The second pulley 13 and the third pulley 14 are respectively arranged at both ends of the bottom plate 43, and the first pulley 12 is movably arranged on the top plate 42.

[0033] Specifically, the connection frame 41 is used to support the first pulley 12, the second pulley 13, and the third pulley 14. At the same time, the connection frame 41 is used to connect the support frame 30 with the first pulley 12, the second pulley 13, and the third pulley 14.

[0034] Specifically, the connection frame 41 is made of aluminum alloy angle iron.

[0035] In this embodiment, the connecting frame 41 further includes two side plates 44. The two side plates 44 are oppositely arranged in the horizontal direction between the bottom plate 43 and the top plate 42. Each side plate 44 extends in the vertical direction, and each side plate 44 is connected to the first support rod 31 of the support frame 30.

[0036] Specifically, by connecting each side plate 44 to the first support rod 31 of the support frame 30, the connecting frame 41 and the support frame 30 are connected, and further the support frame 30 is connected to the first pulley 12, the second pulley 13, and the third pulley 14.

[0037] In this embodiment, the grounding protection device further includes a connecting frame 51. The connecting frame 51 includes a first plate body, a second plate body 52, and a third plate body. The two ends of the first plate body are respectively connected to the second plate body 52 and the third plate body. The second plate body 52 and the third plate body both extend in the vertical direction, and the first plate body extends in the horizontal direction. The first plate body is connected to the top plate 42 of the connecting frame 41. The rotating shaft of the first pulley 12 passes through the second plate body 52 and the third plate body, so that the first pulley 12 is connected to the connecting frame 51.

[0038] Specifically, the second plate body 52 and the third plate body of the connecting frame 51 are used to support the first pulley 12. At the same time, the first plate body of the connecting frame 51 is used to connect the connecting frame 51 and the connecting frame 41, so that the first pulley 12 is connected to the connecting frame 41.

[0039] In this embodiment, the grounding protection device further includes a transmission rod 61. The transmission rod 61 extends in the vertical direction. The transmission rod 61 is movably arranged on the top plate 42 of the connecting frame 41. The transmission rod 61 passes through the first plate body, so that the transmission rod 61 is connected to the connecting frame 51. The transmission rod 61 is arranged to be reciprocally movable in the vertical direction to adjust the height of the first pulley 12 in the vertical direction.

[0040] Specifically, the transmission rod 61 is used to connect the first plate body and the top plate 42, so that the first pulley 12 is movably arranged on the top plate 42; by the reciprocating movement of the transmission rod 61 in the vertical direction, the transmission rod 61 can drive the connecting frame 51 and the first pulley 12 to reciprocally move in the vertical direction, thereby adjusting the height of the first pulley 12 in the vertical direction.

[0041] Specifically, the grounding protection device further includes a handle 6. The handle 6 is arranged at one end of the transmission rod 61 far from the first pulley 12. The user drives the transmission rod 61 to move in the vertical direction by holding the handle 6.

[0042] Optionally, the transmission rod 61 is a smooth round rod. The grounding protection device further includes a limiting member. The limiting member is detachably installed on the transmission rod 61. After the height adjustment of the first pulley 12 is completed, the limiting member is clamped on the transmission rod 61 so that the limiting member abuts against the top plate 42 to prevent the transmission rod 61 from moving further.

[0043] Optionally, the transmission rod 61 is a threaded rod. The user rotates the threaded rod so that the transmission rod 61 drives the first pulley 12 to move in the vertical direction.

[0044] In another embodiment, not shown in the figure, the grounding protection device further includes a transmission block, a transmission lead screw, and a driving member. The transmission lead screw extends in the vertical direction. The transmission block is connected to the third plate body. The transmission block is movably sleeved on the transmission lead screw. The driving member is drivingly connected to the transmission lead screw to drive the transmission lead screw to rotate about the axis of the transmission lead screw, so that the transmission lead screw drives the transmission block to reciprocate in the vertical direction.

[0045] Specifically, the driving member drives the transmission lead screw to rotate about the axis of the transmission lead screw, so that the transmission lead screw drives the transmission block and the connecting frame 51 to reciprocate in the vertical direction, and further smoothly adjusts the height of the first pulley 12 in the vertical direction.

[0046] In this embodiment, the grounding protection device further includes an alarming member and a controller. The alarming member is communicatively connected to the controller, and the monitoring member 20 is communicatively connected to the controller, so that the controller controls the alarming member to give an alarm according to the acquisition result of the monitoring member 20.

[0047] Specifically, the monitoring member 20 feeds back the electric field signal around the traction rope collected to the controller. The controller judges whether the traction rope is leaking electricity. When the controller judges that the traction rope is leaking electricity, the controller controls the alarming member to give an alarm to remind the staff in time.

[0048] Specifically, the monitoring member 20 is a non-contact electroscope.

[0049] The present utility model further provides a traction system, including a traction machine and the above-mentioned grounding protection device.

[0050] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0051] The grounding protection device of the present utility model includes a traction member, a support frame 30, a first pulley 12, and a monitoring member 20. The first pulley 12 is arranged on the support frame 30, and the traction rope is wound around and passes through the first pulley 12 to be connected to the cable, so that the support frame 30 can support the first pulley 12, and the first pulley 12 can support and guide the traction rope. By adjusting the height of the first pulley 12 in the vertical direction, the tightness of the traction rope and the degree of adhesion between the traction rope and the first pulley 12 can be changed, avoiding the traction rope from falling off the first pulley 12 and ensuring the electrical conductivity reliability between the traction rope and the first pulley 12. By monitoring the electrified situation of the traction rope in real time through the monitoring member 20, it helps the staff to timely discover that the cable is damaged and the traction rope is electrified, and timely repair the cable. By arranging a grounding wire 11 on the support frame 30, when the traction rope is damaged and electrified, the grounding wire 11 can conduct the current transmitted by the traction rope to the support frame 30 into the ground, avoiding the current flowing into the traction member and causing electric shock to the staff, thus solving the problem that it is easy to cause electric shock to the staff during the cable laying process in the prior art.

[0052] For the sake of convenience in description, spatial relative terms, such as "above...", "over...", "on the upper surface of...", "above" and the like, can be used here to describe the spatial position relationship between one device or feature and other devices or features as shown in the figure. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation shown in the figure of the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations should be made for the spatial relative descriptions used here.

[0053] In addition, it should be noted that using words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above words have no special meanings, so they cannot be understood as limiting the protection scope of the present application.

[0054] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, 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 grounding protection device, characterized in that: The grounding protection device comprises: A traction rope, one end of which is connected to a traction machine; A support frame (30), wherein a grounding wire (11) is arranged on the support frame (30); a first pulley (12), the first pulley (12) being arranged on the support frame (30), the traction rope being wound around the first pulley (12) so that the other end of the traction rope is connected to the cable, and the first pulley (12) being arranged so that the height in the vertical direction can be adjusted; A monitoring device (20), wherein the monitoring device (20) is used to collect electric field signals around the traction rope to monitor the charging condition of the traction rope in real time.

2. The grounding protection device according to claim 1, characterized in that: The grounding protection device also includes: a second pulley (13) and a third pulley (14), wherein the second pulley (13) and the third pulley (14) are arranged on the support frame (30) at intervals in the horizontal direction, and the first pulley (12) is arranged between the second pulley (13) and the third pulley (14), so that the traction rope is connected to the cable after being wound around the third pulley (14), the first pulley (12) and the second pulley (13) in sequence; In the vertical direction, the height of the second pulley (13) is the same as the height of the third pulley (14), and the height of the first pulley (12) is greater than the height of the second pulley (13).

3. The grounding protection device according to claim 1, characterized in that: The grounding protection device also includes a base (33), the base (33) is arranged on a mounting base, the support frame (30) includes a first support rod (31), a second support rod (32) and a fourth support rod (34), the first support rod (31) extends in a horizontal direction, the second support rod (32) and the fourth support rod (34) both extend in the vertical direction, the second support rod (32) and the fourth support rod (34) are both arranged on the base (33), the first support rod (31) is arranged between the second support rod (32) and the fourth support rod (34), a connecting clamp is arranged on the second support rod (32), the grounding wire (11) is hung on the connecting clamp, and the monitoring component (20) is arranged on the fourth support rod (34).

4. The grounding protection device according to claim 2, characterized in that: The grounding protection device further comprises a connecting frame (41), wherein the connecting frame (41) is arranged on the supporting frame (30), the connecting frame (41) comprises a top plate (42) and a bottom plate (43), the top plate (42) and the bottom plate (43) are arranged at intervals along the vertical direction, the bottom plate (43) and the top plate (42) both extend along the horizontal direction, the length of the bottom plate (43) is greater than the length of the top plate (42), the second pulley (13) and the third pulley (14) are respectively arranged at two ends of the bottom plate (43), and the first pulley (12) is movably arranged on the top plate (42).

5. The grounding protection device according to claim 4, characterized in that: The connecting frame (41) further comprises two side panels (44), wherein the two side panels (44) are arranged relatively between the bottom panel (43) and the top panel (42) along the horizontal direction, and each of the side panels (44) extends along the vertical direction, and each of the side panels (44) is connected to the first support rod (31) of the support frame (30).

6. The grounding protection device according to claim 5, characterized in that: The grounding protection device also includes a connecting frame (51), the connecting frame (51) includes a first plate body, a second plate body (52) and a third plate body, two ends of the first plate body are respectively connected to the second plate body (52) and the third plate body, the second plate body (52) and the third plate body both extend along the vertical direction, the first plate body extends along the horizontal direction, the first plate body is connected to the top plate (42) of the connecting frame (41), and the rotating shaft of the first pulley (12) passes through the second plate body (52) and the third plate body, so that the first pulley (12) and the connecting frame (51) are connected.

7. The grounding protection device according to claim 6, characterized in that: The grounding protection device also includes a transmission rod (61), the transmission rod (61) extends along the vertical direction, the transmission rod (61) is movably inserted into the top plate (42) of the connecting frame (41), the transmission rod (61) is inserted into the first plate body so that the transmission rod (61) is connected to the connecting frame (51), and the transmission rod (61) is reciprocatingly movable along the vertical direction so as to adjust the height of the first pulley (12) along the vertical direction.

8. The grounding protection device according to claim 6, characterized in that: The grounding protection device also includes a transmission block, a transmission screw and a driving member. The transmission screw extends along the vertical direction, the transmission block is connected to the third plate, the transmission block can be movably mounted on the transmission screw, and the driving member is drivingly connected to the transmission screw to drive the transmission screw to rotate around the axis of the transmission screw, so that the transmission screw drives the transmission block to reciprocate along the vertical direction.

9. The grounding protection device according to claim 1, characterized in that: The grounding protection device also includes an alarm component and a controller, wherein the alarm component is communicatively connected to the controller, and the monitoring component (20) is communicatively connected to the controller, so that the controller controls the alarm component to issue an alarm according to the collection result of the monitoring component (20).

10. A traction system, characterized in that: The invention comprises a traction machine and the grounding protection device according to any one of claims 1 to 9.

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