Fixed connecting piece of unhooking device

Abstract

The utility model discloses a fixed connecting piece of an unhooking device, which comprises a fixed plate, a hook and a connecting mechanism, and the hook is arranged on the fixed plate. The rotating drum rotates on the bearing rod, so that the hook can freely rotate on the fixing plate, the friction resistance during rotation is reduced through the arrangement of the ball, meanwhile, the sealing plug can move out of the sliding cavity through the design of the local notch, a certain amount of oil leaks to the position between the bearing rod and the rotating drum, and the oil leakage is avoided. The lubricating and liquid supplementing effects are achieved, it is ensured that the friction surface is continuously covered with an oil film, abnormal sound and abrasion caused by dry friction are avoided, meanwhile, the oil storage cavity can contain oil several times that of a traditional lubricating structure, the maintenance period is remarkably prolonged, and the long-term use requirement in the severe environment of a mining area is met; according to the technical scheme, the characteristics of automatic oil supply, large-capacity storage and easy maintenance are integrated, and an innovative solution is provided for application of the rotary connecting piece in a heavy industrial scene.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fixed connecting piece, in particular to a fixed connecting piece of unhooking device belongs to fixed connecting piece technical field. BACKGROUND

[0002] Coal mine refers to the place rich in coal resources, and is generally divided into underground coal mine and open coal mine, when the coal seam is far away from the ground surface, and the coal mine needs to be combined with the hoisting equipment to transport the mined coal, and the hoisting equipment often needs to be combined with the hook and the unhooking device, and the hook needs to be connected to the unhooking device by using the fixed connecting piece.

[0003] However, the existing fixed connecting piece has various problems, for example, in the elevator hook fixing device disclosed in the publication number CN222860883U, although it has the advantages of maintenance-free and high stability, but its flexibility is insufficient, and in the technical scheme and most of the connecting pieces at present, the traditional design adopts the shaft rod to realize the rotating function of the hook, but due to the dust, humidity and other harsh working conditions in the coal mine environment, the lubricating grease of the shaft rod is consumed rapidly, and after the lubrication failure, the metal directly rubs to produce abnormal noise, which affects the working environment, and the wear between the shaft rod and the shaft sleeve is aggravated, which causes the increase of the fitting clearance and reduces the structural stability, so frequent maintenance is needed, which greatly increases the downtime cost. UTILITY MODEL CONTENT

[0004] The utility model technical scheme provides a solution significantly different from the prior art in view of the technical problem that the prior art solution is too single, specifically, the purpose of the utility model is to solve the above-mentioned shortcomings in the prior art, and a fixed connecting piece of unhooking device is provided.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A fixed connecting piece of unhooking device, comprising a fixed plate, a hook and a connecting mechanism, the hook is arranged on the fixed plate, and the connecting mechanism is arranged between the fixed plate and the hook;

[0007] The connecting mechanism comprises a supporting rod, a rotating drum, a sliding cavity, a ball and a sealing plug, the supporting rod is fixed on the fixed plate, the rotating drum is fixed on the hook and coaxially rotates and is sleeved outside the supporting rod, the sliding cavity is concave and arranged at the center of the inner wall of the rotating drum, the ball is rotatably connected to the outer wall of the supporting rod in an embedded manner and rolls against the inner wall of the rotating drum, the sealing plug is sealingly connected in the sliding cavity, and the ball at the bottom of the sealing plug is on the supporting rod, a plurality of balls are equidistantly arranged along the peripheral wall of the supporting rod, and a notch is arranged at a local position, when the sealing plug abuts at the notch, the sealing plug is separated from the sliding cavity.

[0008] As a further scheme of the utility model: the connecting mechanism further includes an abutting rod, an oil leakage rod and a spring, one end of the abutting rod is coaxially fixed on the sealing plug, the other end is coaxially fixed with the oil leakage rod, and the abutting rod and the oil leakage rod are located in the sliding cavity, the spring is arranged at the top of the sliding cavity, and one end is abutted with the oil leakage rod.

[0009] As a further scheme of the utility model: the connecting mechanism further includes an oil storage cavity and an oil injection hole, the oil storage cavity is arranged in the hook and is through with the sliding cavity, and the oil injection hole is arranged outside the hook and is through with the oil storage cavity.

[0010] As a further scheme of the utility model: the connecting mechanism further includes a rotating rod and a baffle, the oil leakage rod is provided with a through hole at the shaft center and is provided with an annular plate at the end away from the abutting rod, the baffle is rotationally connected with the annular plate through the rotating rod and is abutted at the bottom of the annular plate, and the rotating rod is provided with a torsional spring.

[0011] As a further scheme of the utility model: one end of the abutting rod close to the sealing plug is conical structure.

[0012] As a further scheme of the utility model: the left and right sides of the supporting rod are symmetrically arranged as conical inclined surface structures, the balls are uniformly arranged along the conical surface and are all in rolling abutment with the inner wall of the rotating drum.

[0013] The utility model has the advantages of:

[0014] In the utility model, the hook can freely rotate on the fixed plate through the rotation of the rotating drum on the supporting rod, the frictional resistance during rotation is reduced through the arrangement of the balls, the sealing plug can be moved out of the sliding cavity through the design of the local notch, a certain amount of oil leaks out between the supporting rod and the rotating drum, the lubrication and liquid supplementing effects are realized, the oil film on the friction surface is ensured to be continuously covered, the abnormal sound and wear caused by dry friction are avoided, the oil storage cavity can accommodate several times of the oil amount of the traditional lubricating structure, the maintenance period is significantly prolonged, the long-term use requirement in the harsh environment of the mining area is adapted, the technical scheme comprehensively integrates the automatic oil supply, the large-capacity storage and the easy maintenance characteristics, and provides an innovative solution for the application of the rotary connecting piece in the heavy industry scene. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the connecting mechanism structure schematic view of the utility model;

[0017] Figure 3 It is the supporting rod and the connecting structure schematic view of the utility model;

[0018] Figure 4 It is a hook profile structure schematic diagram of the utility model;

[0019] Figure 5 It is a leakage rod profile structure schematic diagram of the utility model.

[0020] In the drawing: 1, fixed plate, 2, hook, 3, connecting mechanism, 31, support rod, 32, rotating drum, 33, sliding cavity, 34, ball, 35, sealing plug, 36, butt joint rod, 37, leakage rod, 38, spring, 39, oil storage cavity, 310, oil injection hole, 311, rotating rod, 312, baffle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Embodiment one, as shown, a kind of unhooking device fixed connecting piece, including fixed plate 1, hook 2 and connecting mechanism 3, hook 2 is arranged on fixed plate 1, connecting mechanism 3 is arranged between fixed plate 1, hook 2; Figures 1 to 5

[0023] Connecting mechanism 3 includes support rod 31, rotating drum 32, sliding cavity 33, ball 34 and sealing plug 35, support rod 31 is fixed on fixed plate 1, rotating drum 32 is fixed on hook 2, and coaxially rotates and is arranged on the outside of support rod 31, sliding cavity 33 is concavely arranged at the center of the inner wall of rotating drum 32, ball 34 is embeddedly rotatably connected on the outer wall of support rod 31, and is in rolling abutment with the inner wall of rotating drum 32, sealing plug 35 is sealingly slidably connected in sliding cavity 33, and the ball 34 at the bottom of sealing plug 35 is on support rod 31, a plurality of equidistantly arranged on the circumferential wall of support rod 31, and is provided with notch at local position, when sealing plug 35 is in abutment at the notch, sealing plug 35 is separated from sliding cavity 33;

[0024] Connecting mechanism 3 further includes butt joint rod 36, leakage rod 37 and spring 38, butt joint rod 36 is coaxially fixed on sealing plug 35 at one end, and is coaxially fixed with leakage rod 37 at the other end, and butt joint rod 36, leakage rod 37 are all located in sliding cavity 33, spring 38 is arranged at the top of sliding cavity 33, and one end is in abutment with leakage rod 37;

[0025] Connecting mechanism 3 further includes oil storage cavity 39 and oil injection hole 310, oil storage cavity 39 is arranged in hook 2, and is through with sliding cavity 33, oil injection hole 310 is arranged outside hook 2, and is through with oil storage cavity 39; ​

[0026] The connecting mechanism 3 also includes a rotating rod 311 and a baffle 312. The oil leakage rod 37 has a through hole at its shaft center and an annular plate at the end away from the connecting rod 36. The baffle 312 is rotatably connected to the annular plate through the rotating rod 311 and abuts against the bottom of the annular plate. A torsion spring is provided on the rotating rod 311.

[0027] In this invention, the rotating drum 32 rotates on the supporting rod 31, allowing the hook 2 to rotate freely on the fixed plate 1. The ball bearings 34 reduce frictional resistance during rotation. Simultaneously, the partial notch design allows the sealing plug 35 to move out of the sliding cavity 33, enabling a certain amount of oil to leak between the supporting rod 31 and the rotating drum 32, achieving lubrication and replenishment. This ensures the friction surfaces are continuously covered with an oil film, preventing abnormal noise and wear caused by dry friction. Furthermore, the oil storage cavity 39 can hold several times the oil volume of traditional lubrication structures, significantly extending the maintenance cycle and meeting the long-term usage requirements of harsh mining environments. This technical solution integrates automatic oil supply, large-capacity storage, and easy maintenance, providing an innovative solution for the application of rotating connectors in heavy industrial scenarios.

[0028] Example 2, as Figures 1 to 5 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0029] The end of the connecting rod 36 near the sealing plug 35 has a tapered structure, which allows the oil to flow out quickly and avoids accumulation.

[0030] The left and right sides of the support rod 31 are symmetrically designed with tapered inclined surfaces. The balls 34 are evenly arranged along the tapered surface and roll against the inner wall of the rotating drum 32. The inclined surface allows the oil to flow quickly to the outer surface of the support rod 31 as a whole, thus achieving lubrication of the support rod 31 as a whole.

[0031] When using this fixed connector, first add oil to the oil storage chamber 39. The oil in the oil storage chamber 39 flows into the sliding chamber 33. When the hook 2 drives the rotating drum 32 to rotate, the sealing plug 35 and the ball 34 abut against each other and move into the sliding chamber 33. At this time, the baffle 312 rotates and opens, allowing the oil to flow through the oil leakage rod 37 to the top of the sealing plug 35. After the hook 2 is reset, the sealing plug 35 abuts against the notch. At this time, the sealing plug 35 moves out of the sliding chamber 33, and the oil flows between the support rod 31 and the rotating drum 32.

[0032] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0033] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A fixed connection of an unhooking device, comprising a fixed plate (1), a hook (2) and a connection mechanism (3), characterized in that, The hook (2) is arranged on the fixed plate (1), and the connecting mechanism (3) is arranged between the fixed plate (1) and the hook (2). The connecting mechanism (3) comprises a supporting rod (31), a rotating barrel (32), a sliding cavity (33), a ball (34) and a sealing plug (35). The supporting rod (31) is fixed on the fixed plate (1). The rotating barrel (32) is fixed on the hook (2) and coaxially rotates and is arranged outside the supporting rod (31). The sliding cavity (33) is concavely arranged at the center of the inner wall of the rotating barrel (32). The ball (34) is rotatably connected to the outer wall of the supporting rod (31) in an embedded manner and is in rolling abutment with the inner wall of the rotating barrel (32). The sealing plug (35) is sealingly and slidingly connected in the sliding cavity (33). The ball (34) at the bottom of the sealing plug (35) is arranged on the supporting rod (31) and equidistantly arranged on the peripheral wall of the supporting rod (31) and is provided with a gap at a local position. When the sealing plug (35) is in abutment at the gap, the sealing plug (35) is separated from the sliding cavity (33).

2. A fixed link for a breakaway device according to claim 1, wherein: The connecting mechanism (3) further comprises a butt joint rod (36), an oil leakage rod (37) and a spring (38). One end of the butt joint rod (36) is coaxially fixed on the sealing plug (35), and the other end is coaxially fixed with the oil leakage rod (37). The butt joint rod (36) and the oil leakage rod (37) are both arranged in the sliding cavity (33). The spring (38) is arranged at the top of the sliding cavity (33) and abuts against the oil leakage rod (37) at one end.

3. A fixed link for a breakaway device according to claim 2, wherein: The connecting mechanism (3) further comprises an oil storage cavity (39) and an oil injection hole (310). The oil storage cavity (39) is arranged in the hook (2) and penetrates the sliding cavity (33). The oil injection hole (310) is arranged outside the hook (2) and penetrates the oil storage cavity (39).

4. A fixed link for a breakaway device according to claim 3, wherein: The connecting mechanism (3) further comprises a rotating rod (311) and a baffle (312). The oil leakage rod (37) is provided with a through hole at the shaft center and an annular plate at the end away from the butt joint rod (36). The baffle (312) is rotatably connected with the annular plate through the rotating rod (311) and abuts against the bottom of the annular plate. The rotating rod (311) is provided with a torsional spring.

5. A fixed link for a breakaway device according to claim 2, wherein: One end of the butt joint rod (36) near the sealing plug (35) is in a tapered structure.

6. A fixed link for a release device according to claim 1 or 5, characterised in that: The left and right sides of the supporting rod (31) are symmetrically arranged in a tapered inclined surface structure. The balls (34) are uniformly arranged along the tapered surface and are in rolling abutment with the inner wall of the rotating barrel (32).

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