A coupling

Abstract

The application relates to the technical field of couplings, and discloses a coupling, which comprises two shaft sleeve parts arranged symmetrically and a transmission shaft, one side of the shaft sleeve part is fixedly connected with a connecting sleeve, the side, away from the shaft sleeve part, of the connecting sleeve is fixedly connected with a connecting flange, the outer side of one side of the connecting flange is fixedly installed with a bolt part, the outer side of the other side of the connecting flange is fixedly installed with a nut part, the outer side of the connecting sleeve is provided with a reinforcing assembly, the inner side of the connecting sleeve is provided with a mounting assembly, the reinforcing assembly comprises a fixing ring and a pressing ring, the reinforcing assembly further comprises a pressing unit and a warning unit, the pressing unit comprises sliding rods which are arrayed and slidingly installed on the outer side of the fixing ring, the problem that when the bolts are loose during the rotation of the coupling, the operators cannot conveniently find the problem in time, the maintenance efficiency of the coupling is reduced, and the coupling is more likely to be damaged is solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a coupling. BACKGROUND

[0002] The coupling is a device for connecting two shafts or a shaft and a rotating part, rotating together in the process of transmitting motion and power, and not being disconnected under normal circumstances. Sometimes, the coupling is used as a safety device to prevent the connected machine from bearing excessive load and plays a role in overload protection.

[0003] The utility model discloses a kind of couplings convenient for quick disassembly, including first adapter sleeve shaft and second adapter sleeve shaft, the first adapter sleeve shaft and second adapter sleeve shaft one end are provided with transmission ring shaft, the both ends of inner adapter groove inner side are provided with extension limiting slot, the one end of inner adapter groove is provided with stretch locking groove, and stretch locking groove is set as L-shaped structure, when being combined for use, transmission shaft is aligned with the extension limiting slot inside inner adapter groove and is loaded, when transmission shaft enters the inside of adapter sleeve shaft and continues to extend a distance, after that, transmission shaft is rotated, the lock block combined with extension limiting slot before is entered into stretch locking groove, again transmission shaft is pulled back and makes lock block completely enter into stretch locking groove, finally along the groove of L-shaped structure is rotated, to complete the installation between transmission shaft and coupling, without the aid of bolt fixation, improve installation efficiency, simultaneously avoid the abrasion of connecting piece, but, in the equipment operation process, if bolt is not enough pre-tightening force when initially tightening, or the vibration or impact load during operation causes pre-tightening force to reduce, bolt loosening can be caused, to affect the fastening effect of bolt and the use stability of coupling, thus the bolt fastening condition of coupling needs to be checked regularly, to find problems in time and take corresponding measures, when bolt loosening occurs in the rotating process of coupling, operator is inconvenient to find in time, reduce the overhaul efficiency of coupling, also make coupling more easily damaged, there is certain limitation, and the transmission shaft and coupling of existing bolt installation mode are not convenient for the convenient disassembly of transmission shaft.

[0004] Therefore, a coupling is proposed to solve the above problems. SUMMARY

[0005] The application aims to provide a coupling to solve the problem that operator is inconvenient to find in time when bolt loosening occurs in the rotating process of coupling, reduce the overhaul efficiency of coupling, and make the coupling more easily damaged.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a coupling, comprising two shaft sleeve parts and a transmission shaft arranged symmetrically, one side of the shaft sleeve part is fixedly connected with a connecting sleeve, the side away from the shaft sleeve part of the connecting sleeve is fixedly connected with a connecting flange, the outer side of one side of the connecting flange is fixedly installed with a bolt part, and the outer side of the other side of the connecting flange is fixedly installed with a nut part;

[0007] Further comprising:

[0008] The outer side of the connecting sleeve is provided with a reinforcing assembly, and the inner side of the connecting sleeve is provided with a mounting assembly, the reinforcing assembly comprises a fixed ring and a compression ring;

[0009] The reinforcing assembly further comprises a compression unit and a warning unit, the compression unit comprises a sliding rod array slidingly installed on the outer side of the fixed ring, and the side close to the fixed ring of the compression ring is fixedly connected with a cross bar;

[0010] The warning unit comprises a contact disc symmetrically slidingly installed on the inner side of the compression ring, one side of the contact disc is connected with a second contact part, the outer side of the cross bar is fixedly installed with a connecting plate, and the outer side of the connecting plate is fixedly installed with an indicator lamp and a first contact part, so that when the contact disc drives the second contact part to contact the first contact part, the indicator lamp is lit to warn the operator.

[0011] Preferably, the fixed ring is fixedly installed on the outer side of the connecting sleeve, the compression ring is slidingly connected with the connecting sleeve, the outer side of the fixed ring is arrayed and fixedly connected with a fixed block, the number of the fixed block and the sliding rod is the same as that of the bolt part and the nut part, and is not less than four, the cross bar is slidingly connected with the fixed block, one end of the cross bar close to the sliding rod is provided with an inclined surface, and the sliding rod abuts against the inclined surface of the cross bar.

[0012] By adopting the above technical scheme, the contact disc compresses the bolt part or the nut part, and the loosening of the bolt part or the nut part is reduced, when the bolt part or the nut part is loose and unstable in the subsequent process, the bolt part or the nut part will extrude the contact disc, and the indicator lamp at the loosening position of the bolt part or the nut part is lit to warn.

[0013] Preferably, the outer side of the cross bar is sleeved with a spring one, both ends of the spring one are fixedly connected with the fixed block and the compression ring respectively, the outer side of the fixed ring is symmetrically provided with a vertical groove, the inner bottom surface of the vertical groove is fixedly connected with a spring two, and one end of the spring two is fixedly connected with the sliding rod.

[0014] By adopting the above technical scheme, the sliding rod pushes the cross bar and the compression ring to move, and the compression ring stretches the spring one.

[0015] Preferably, the sliding rod is in sliding connection with the vertical slot, the position of the first contact part is flush with the second contact part, the inside of the compression ring is symmetrically provided with a sliding slot, the number of the sliding slot is same as that of the sliding rod, and the inside of the sliding slot is fixedly connected with a fixed ring.

[0016] By using the above technical scheme, the bolt part or the nut part will extrude the contact disc, the contact disc slides into the sliding slot and extrudes the spring three, and the contact disc drives the second contact part to move.

[0017] Preferably, two spring threes are symmetrically arranged between the fixed ring and the contact disc, two ends of the spring three are fixedly connected with the fixed ring and the contact disc respectively, a sliding rod is fixedly arranged between the contact disc and the second contact part, the sliding rod passes through the center of the fixed ring, the sliding rod is in sliding connection with the fixed ring, and the compression ring is fixedly connected with a pad on the side away from the fixed ring.

[0018] By using the above technical scheme, when the second contact part contacts the first contact part, the indicator light is on, so that in the rotating process, the indicator light of the loosened position of the bolt part or the nut part can be easily seen, and the operator can timely find the unstable connection of the bolt part or the nut part.

[0019] Preferably, the mounting assembly comprises a strip-shaped slot symmetrically provided in the inner wall of the shaft sleeve, one end of the outer side of the transmission shaft is fixedly connected with a clamping block, the number of the clamping block is not less than three, the clamping block is in sliding connection with the strip-shaped slot, the inner wall of the connecting sleeve is symmetrically provided with a clamping slot near the shaft sleeve, the clamping block is in clamping connection with the clamping slot, the inner wall of the connecting sleeve is fixedly connected with two connecting blocks, the connecting block is fixedly connected with a spring four on the side close to the shaft sleeve, and two spring fours are fixedly connected with the same limiting disc on the side away from the connecting block.

[0020] By using the above technical scheme, the clamping block on the transmission shaft is aligned with the position of the strip-shaped slot, the transmission shaft is slid into the inside of the shaft sleeve until the clamping block slides out of the end of the strip-shaped slot, at this time, the transmission shaft is rotated by forty-five degrees, the clamping block is driven by the transmission shaft to the position of the clamping slot, and then the transmission shaft is pulled back, the clamping block is clamped into the clamping slot by the transmission shaft.

[0021] Preferably, the limiting disc is in sliding connection with the inner wall of the connecting sleeve, the inner wall of the connecting flange is fixedly connected with a connecting rod, the outer side of the middle part of the connecting rod is fixedly connected with a fixed strip, one end of the fixed strip is fixedly connected with a spring five, the spring five is fixedly connected with a sleeve ring on the side away from the fixed strip, and the sleeve ring is slidably sleeved on the outer side of the connecting rod.

[0022] By using the above technical scheme, the two connecting flanges close to each other will drive the connecting rod to move, so that the connecting rod drives the spring five and the sleeve ring to move.

[0023] Preferably, the fixed strip is fixedly connected with a piston rod away from one end of the connecting rod, the limiting disc is fixedly installed with a sleeve symmetrically away from one side of the shaft sleeve part, the inside of the limiting disc is symmetrically provided with an air channel, the piston rod is attached to the inner wall of the sleeve, and the piston rod is in sliding connection with the sleeve, and the sleeve is in communication with the air channel.

[0024] By adopting the above technical scheme, the connecting rod drives the piston rod to be inserted into the sleeve, and the sleeve ring pushes the limiting disc to move, so that the limiting disc is pressed against the end face of the transmission shaft.

[0025] Preferably, the outer side of the sleeve is fixedly installed with a one-way air inlet valve and a one-way air outlet valve, the number of the connecting rods is not less than two, and the number of the connecting rods is the same as that of the sleeves.

[0026] By adopting the above technical scheme, when the sleeve ring is stationary, the spring five is compressed by the fixed strip, the fixed strip continues to drive the piston rod to extrude the gas inside the sleeve, so that the gas is discharged from the one-way air outlet valve, and the negative pressure state inside the air channel is maintained.

[0027] Compared with the prior art, the beneficial effects of the present application are:

[0028] 1. The reinforcing assembly is provided, when the transmission shaft and the shaft sleeve part are rotating, the connecting sleeve and the fixed ring are subjected to centrifugal force, the centrifugal force drives the sliding rod to slide out of the vertical groove, the sliding rod stretches the spring two and extrudes the inclined surface of the horizontal rod, the sliding rod drives the horizontal rod and the compression ring to move, the compression ring stretches the spring one, the compression ring also drives the contact disc to compress the bolt part or the nut part, which reduces the loosening of the bolt part or the nut part, and the compression ring drives the pad to compress the connecting flange, which limits the bolt part or the nut part, when the bolt part or the nut part is loose and unstable in the subsequent process, the bolt part or the nut part will extrude the contact disc, the contact disc slides into the sliding groove and extrudes the spring three, the contact disc drives the contact part two to move, so that the contact part two contacts the contact part one, at this time, the indicator light is on, so that during rotation, the indicator light of the loosening position of the bolt part or the nut part is easily seen, the operator can timely find the unstable connection of the bolt part or the nut part, and timely shutdown and maintenance are facilitated, the inspection efficiency is improved, the problem that when the bolt of the coupling is loose during rotation, the operator cannot find it in time is solved, the inspection efficiency of the coupling is improved, and the coupling is less likely to be damaged;

[0029] 2. An installation component is provided. When installing the transmission shaft, the operator first aligns the block on the transmission shaft with the position of the strip groove, slides the transmission shaft into the interior of the shaft sleeve until the block slides out from the end of the strip groove. At this time, the transmission shaft is rotated forty-five degrees, and the transmission shaft drives the block to the position of the slot. Then the transmission shaft is pulled back, and the transmission shaft drives the block to be stuck in the slot, which is convenient for the preliminary positioning of the transmission shaft. Then, the two connecting flanges are installed close to each other through the threaded connection of the bolt part and the nut part. The close proximity of the two connecting flanges will drive the connecting rod to move. The elastic coefficient of spring five is greater than that of spring four, so that the connecting rod drives spring five and the collar to move, and When the cam is in the air, it moves along the guide rail and the spring which in turn pushes the piston rod into the air duct so that the air duct is in the airtight position and the air duct is in the airtight position. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the bolt portion installation structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the connecting flange installation structure of the present invention;

[0033] Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram;

[0034] Figure 5 This is an exploded schematic diagram of the crossbar mounting structure of the present invention;

[0035] Figure 6 This is a schematic diagram of the initial position of the clamping ring of the present invention;

[0036] Figure 7 This is a schematic diagram of the drive shaft installation structure of the present invention;

[0037] Figure 8 This is a schematic diagram of the connecting rod installation structure of the present invention;

[0038] Figure 9 For the present invention Figure 8 The enlarged structural diagram at B in the middle;

[0039] Figure 10 For the present invention Figure 8Amplification structure schematic diagram at C;

[0040] Figure 11 Amplification structure schematic diagram at C;

[0041] Figure 12 Amplification structure schematic diagram at C; Figure 11 Amplification structure schematic diagram at C.

[0042] In the figure: 1, shaft sleeve; 2, connecting sleeve; 3, connecting flange; 4, bolt part; 5, nut part; 6, reinforcing assembly; 61, fixed ring; 62, fixed block; 63, cross bar; 64, compression ring; 65, spring one; 66, vertical groove; 67, spring two; 68, sliding rod; 69, connecting plate; 610, indicator light; 611, contact part one; 612, sliding groove; 613, fixed ring; 614, spring three; 615, contact disc; 616, contact part two; 617, pad block; 7, mounting assembly; 71, strip slot; 72, clamping groove; 73, connecting block; 74, spring four; 75, limiting disc; 76, connection; 77, fixed bar; 78, spring five; 79, collar; 710, piston rod; 711, sleeve; 712, one-way air inlet valve; 713, one-way air outlet valve; 714, air passage; 8, transmission shaft; 81, clamping block. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0044] Please refer to Figures 1-2 The present application provides a technical solution: a coupling, comprising two shaft sleeve parts 1 and a transmission shaft 8 arranged symmetrically, one side of the shaft sleeve part 1 is fixedly connected with a connecting sleeve 2, the side away from the shaft sleeve part 1 of the connecting sleeve 2 is fixedly connected with a connecting flange 3, the outer side of one side connecting flange 3 is fixedly installed with a bolt part 4, and the outer side of the other side connecting flange 3 is fixedly installed with a nut part 5.

[0045] The outer side of the connecting sleeve 2 is provided with a reinforcing assembly 6, and the reinforcing assembly 6 comprises a fixed ring 61 and a compression ring 64.

[0046] The reinforcing assembly 6 further comprises a compression unit and a warning unit, the compression unit comprises a sliding rod 68 arrayed and slidingly installed on the outer side of the fixed ring 61, and the side close to the fixed ring 61 of the compression ring 64 is fixedly connected with a cross bar 63.

[0047] The fixing ring 61 is fixedly installed on the outer side of the connecting sleeve 2, the clamping ring 64 is slidably connected to the connecting sleeve 2, and the outer array of the fixing ring 61 is fixedly connected with a fixing block 62. The number of the fixing blocks 62 and the sliding rods 68 is the same as the number of the bolt parts 4 and the nut parts 5, and is not less than four. The cross bar 63 is slidably connected to the fixing block 62, and an inclined surface is provided at one end of the cross bar 63 close to the sliding rod 68, and the sliding rod 68 abuts against the inclined surface of the cross bar 63.

[0048] The outer side of the crossbar 63 is sleeved with a spring 1 65, and the two ends of the spring 1 65 are fixedly connected to the fixed block 62 and the clamping ring 64 respectively. The outer side of the fixed ring 61 is symmetrically provided with a vertical groove 66, and the inner bottom surface of the vertical groove 66 is fixedly connected to a spring 2 67, and one end of the spring 2 67 is fixedly connected to the sliding rod 68.

[0049] The warning unit includes a contact plate 615 symmetrically slidably installed inside the clamping ring 64, one side of the contact plate 615 is connected to contact head 2 616, a connecting plate 69 is fixedly installed on the outer side of the cross bar 63, and an indicator light 610 and contact head 1 611 are fixedly installed on the outer side of the connecting plate 69, so that when the contact plate 615 drives contact head 2 616 to contact contact head 1 611, the indicator light 610 lights up as a warning to warn the operator.

[0050] The sliding rod 68 is slidably connected to the vertical slot 66, the position of the contact part 1 611 is flush with the contact part 2 616, and the interior of the clamping ring 64 is symmetrically provided with sliding grooves 612. The number of the sliding grooves 612 is the same as that of the sliding rod 68, and a fixing ring 613 is fixedly connected to one side of the interior of the sliding groove 612.

[0051] Two spring threes 614 are symmetrically installed between the fixed ring 613 and the contact plate 615. The two ends of the spring three 614 are fixedly connected to the fixed ring 613 and the contact plate 615 respectively. A sliding rod is fixedly installed between the contact plate 615 and the contact part 2 616. The sliding rod passes through the center of the fixed ring 613 and is slidably connected to the fixed ring 613. A pad 617 is fixedly connected to the side of the clamping ring 64 away from the fixed ring 61.

[0052] Example 1: Figures 3-6 As shown, when the transmission shaft 8 and the sleeve portion 1 rotate, the connecting sleeve 2 and the fixing ring 61 are subjected to centrifugal force, and the centrifugal force drives the sliding rod 68 to slide out of the vertical groove 66. The sliding rod 68 stretches the spring 2 67 and squeezes the inclined surface of the cross bar 63. The sliding rod 68 pushes the cross bar 63 and the clamping ring 64 to move. The clamping ring 64 stretches the spring 1 65. The clamping ring 64 also drives the contact plate 615 to clamp the bolt portion 4 or the nut portion 5, thereby reducing the loosening of the bolt portion 4 or the nut portion 5.

[0053] And the compression ring 64 drives the cushion block 617 to compress the connecting flange 3, which is convenient for limiting the bolt part 4 or the nut part 5. When the bolt part 4 or the nut part 5 is loose and unstable in the subsequent process, the bolt part 4 or the nut part 5 will extrude the contact disc 615, the contact disc 615 slides into the sliding groove 612 and extrudes the spring three 614, the contact disc 615 drives the contact part two 616 to move, so that the contact part two 616 contacts the contact part one 611. At this time, the indicator light 610 is lit.

[0054] During rotation, the indicator light 610 is lit to indicate the loosening position of the bolt part 4 or the nut part 5, which is convenient for the operator to find the unstable connection of the bolt part 4 or the nut part 5 in time, so as to stop the machine for maintenance in time, improve the maintenance efficiency, and solve the problem that the operator cannot find the bolt loosening in time during the rotation of the shaft coupling, which reduces the maintenance efficiency of the shaft coupling and makes the shaft coupling more prone to damage.

[0055] The inner side of the connecting sleeve 2 is provided with a mounting assembly 7, the mounting assembly 7 comprises a strip-shaped groove 71 symmetrically formed in the inner wall of the shaft sleeve part 1, and the outer side of one end of the transmission shaft 8 is fixedly connected with a clamping block 81. The clamping block 81 is not less than three, and the clamping block 81 is in sliding connection with the strip-shaped groove 71. The inner wall of the connecting sleeve 2 is symmetrically provided with a clamping groove 72 close to one side of the shaft sleeve part 1, and the clamping block 81 is in clamping connection with the clamping groove 72. The inner wall of the connecting sleeve 2 is fixedly connected with two connecting blocks 73, and one side of the connecting block 73 close to the shaft sleeve part 1 is fixedly connected with a spring four 74. The same limiting disc 75 is fixedly connected to the two spring fours 74 away from the connecting block 73.

[0056] The limiting disc 75 is in sliding connection with the inner wall of the connecting sleeve 2, the inner wall of the connecting flange 3 is fixedly connected with a connecting rod 76, the outer side of the middle part of the connecting rod 76 is fixedly connected with a fixed strip 77, one end of the fixed strip 77 is fixedly connected with a spring five 78, and the other end of the spring five 78 away from the fixed strip 77 is fixedly connected with a sleeve ring 79. The sleeve ring 79 is in sliding sleeve connection on the outer side of the connecting rod 76.

[0057] One end of the fixed strip 77 away from the connecting rod 76 is fixedly connected with a piston rod 710, one side of the limiting disc 75 away from the shaft sleeve part 1 is fixedly installed with a sleeve 711, and the inner side of the limiting disc 75 is symmetrically provided with an air channel 714. The piston rod 710 is in close contact with the inner wall of the sleeve 711, and the piston rod 710 is in sliding connection with the sleeve 711. The sleeve 711 is in communication with the air channel 714.

[0058] The outer side of the sleeve 711 is fixedly installed with a one-way air inlet valve 712 and a one-way air outlet valve 713, and the number of the connecting rod 76 is not less than two, and the number of the connecting rod 76 is the same as the number of the sleeve 711.

[0059] Embodiment two: as Figures 7-12As shown, when the transmission shaft 8 is installed, the operator first aligns the clamping block 81 on the transmission shaft 8 to the position of the strip-shaped slot 71, slides the transmission shaft 8 into the inside of the shaft sleeve part 1 until the clamping block 81 slides out of the end of the strip-shaped slot 71, at this time, rotates the transmission shaft 8 by forty-five degrees, the transmission shaft 8 drives the clamping block 81 to the position of the clamping slot 72, and then pulls back the transmission shaft 8, the transmission shaft 8 drives the clamping block 81 to be clamped into the clamping slot 72, which is convenient for preliminary positioning of the transmission shaft 8.

[0060] Then, through the threaded connection of the bolt part 4 and the nut part 5, the two connecting flanges 3 are installed close to each other, the movement of the connecting rod 76 is driven by the close movement of the two connecting flanges 3, the spring force coefficient of the spring five 78 is greater than that of the spring four 74, so that the connecting rod 76 drives the movement of the spring five 78 and the sleeve ring 79, and the connecting rod 76 drives the piston rod 710 to be inserted into the sleeve 711, the sleeve ring 79 pushes the limiting disc 75 to move, so that the limiting disc 75 is pressed against the end face of the transmission shaft 8, and the air channel 714 is in close contact with the transmission shaft 8.

[0061] Then, the connecting flange 3 continues to drive the movement of the connecting rod 76 and the fixing strip 77, at this time, the sleeve ring 79 is stationary, the spring five 78 is compressed by the fixing strip 77, the fixing strip 77 continues to drive the piston rod 710 to extrude the gas inside the sleeve 711, so that the gas is discharged from the one-way air outlet valve 713, which is convenient for maintaining the negative pressure state inside the air channel 714, and improves the positioning and pressing effect of the limiting disc 75 on the transmission shaft 8. When the piston rod 710 slides out of the sleeve 711 later, the one-way air inlet valve 712 starts to intake, so that the air pressure inside the air channel 714 is restored, thereby facilitating the disassembly and use of the transmission shaft 8 and the connecting flange 3.

[0062] Working principle: when using the device, first, Figures 1-12As shown, when the transmission shaft 8 is installed, the operator turns the clamping block 81 to the position of the clamping groove 72 to preliminarily position the transmission shaft 8, and then the two connecting flanges 3 are close to the installation to drive the connecting rod 76 to move, the connecting rod 76 drives the spring five 78 and the sleeve ring 79 to move, the limiting disc 75 is pressed against the end face of the transmission shaft 8, the air channel 714 is in close contact with the transmission shaft 8, and then the connecting flange 3 continues to drive the connecting rod 76 and the fixing strip 77 to move, the fixing strip 77 continues to drive the piston rod 710 to extrude the gas in the sleeve 711, so that the gas is discharged from the one-way air outlet valve 713, which is convenient for maintaining the negative pressure state in the air channel 714, and improves the positioning and pressing effect of the limiting disc 75 on the transmission shaft 8. When the transmission shaft 8 and the shaft sleeve part 1 rotate, the centrifugal force drives the sliding rod 68 to slide out of the vertical groove 66, the sliding rod 68 stretches the spring two 67 and extrudes the inclined surface of the cross rod 63, the sliding rod 68 pushes the cross rod 63 and the compression ring 64 to move, the compression ring 64 drives the contact disc 615 to press the bolt part 4 or the nut part 5, and when the bolt part 4 or the nut part 5 is loose and unstable in the subsequent process, the bolt part 4 or the nut part 5 will extrude the contact disc 615, the contact disc 615 slides into the sliding groove 612 and extrudes the spring three 614, so that the contact part two 616 is in contact with the contact part one 611, and at this time the indicator lamp 610 is lit, so that during rotation, the indicator lamp 610 is lit to indicate the loosening position of the bolt part 4 or the nut part 5.

[0063] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0064] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements for part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A shaft coupling, comprising two shaft sleeve parts (1) arranged symmetrically and a transmission shaft (8), one side of the shaft sleeve part (1) is fixedly connected with a connecting sleeve (2), the side away from the shaft sleeve part (1) of the connecting sleeve (2) is fixedly connected with a connecting flange (3), the outer side of one side of the connecting flange (3) is fixedly installed with a bolt part (4), and the outer side of the other side of the connecting flange (3) is fixedly installed with a nut part (5); characterized in that Further comprising: The outer side of the connecting sleeve (2) is provided with a reinforcing assembly (6), and the inner side of the connecting sleeve (2) is provided with a mounting assembly (7), the reinforcing assembly (6) comprises a fixed ring (61) and a pressing ring (64); The reinforcing assembly (6) further comprises a pressing unit and a warning unit, the pressing unit comprises a sliding rod (68) which is arrayed and slidingly installed on the outer side of the fixed ring (61), and the side close to the fixed ring (61) of the pressing ring (64) is fixedly connected with a cross bar (63); The warning unit comprises a contact disc (615) which is symmetrically slidingly installed inside the pressing ring (64), one side of the contact disc (615) is connected with a contact part two (616), the outer side of the cross bar (63) is fixedly installed with a connecting plate (69), the outer side of the connecting plate (69) is fixedly installed with an indicating lamp (610) and a contact part one (611), the sliding rod (68) can push the cross bar (63) and the pressing ring (64) to move, so that the contact disc (615) can press the bolt part (4) or the nut part (5), when the bolt part (4) or the nut part (5) is loosened, the contact disc (615) drives the contact part two (616) to contact with the contact part one (611), when the contact part two (616) contacts with the contact part one (611), the indicating lamp (610) is lighted to warn, which is used for warning the operator.

2. A coupling according to claim 1, characterised in that: The fixed ring (61) is fixedly installed on the outer side of the connecting sleeve (2), the pressing ring (64) is slidingly connected with the connecting sleeve (2), the outer side of the fixed ring (61) is arrayed and fixedly connected with a fixed block (62), the number of the fixed block (62) and the sliding rod (68) is same as that of the bolt part (4) and the nut part (5), and is not less than four, the cross bar (63) is slidingly connected with the fixed block (62), one end of the cross bar (63) close to the sliding rod (68) is provided with an inclined surface, and the sliding rod (68) abuts against the inclined surface of the cross bar (63).

3. A coupling according to claim 2, wherein: The outer side of the cross bar (63) is sleeved with a spring one (65), both ends of the spring one (65) are fixedly connected with the fixed block (62) and the pressing ring (64) respectively, the outer side of the fixed ring (61) is symmetrically provided with a vertical groove (66), the inner bottom surface of the vertical groove (66) is fixedly connected with a spring two (67), and one end of the spring two (67) is fixedly connected with the sliding rod (68).

4. A coupling according to claim 3, wherein: The sliding rod (68) is in sliding connection with the vertical groove (66), the position of the contact head one (611) is flush with the contact head two (616), the inside of the compression ring (64) is symmetrically provided with a sliding groove (612), the number of the sliding groove (612) is same as that of the sliding rod (68), and one side of the inside of the sliding groove (612) is fixedly connected with a fixed ring (613).

5. A coupling according to claim 4, wherein: Two spring threes (614) are symmetrically mounted between the fixed ring (613) and the contact disc (615), both ends of the spring three (614) are fixedly connected with the fixed ring (613) and the contact disc (615) respectively, a sliding rod is fixedly mounted between the contact disc (615) and the contact head two (616), the sliding rod passes through the center of the fixed ring (613), the sliding rod is in sliding connection with the fixed ring (613), and the compression ring (64) is fixedly connected with a pad (617) on the side, away from the fixed ring (61).

6. A coupling according to claim 5, wherein: The mounting assembly (7) comprises a strip-shaped groove (71) symmetrically formed in the inner wall of the shaft sleeve portion (1), one end of the outer side of the transmission shaft (8) is fixedly connected with clamping blocks (81), the number of the clamping blocks (81) is not less than three, the clamping blocks (81) are in sliding connection with the strip-shaped groove (71), the inner wall of the connecting sleeve (2) is symmetrically provided with clamping grooves (72) on the side close to the shaft sleeve portion (1), the clamping blocks (81) are in clamping connection with the clamping grooves (72), the inner wall of the connecting sleeve (2) is symmetrically fixedly connected with two connecting blocks (73), the side of the connecting block (73) close to the shaft sleeve portion (1) is fixedly connected with spring fours (74), and the same limiting disc (75) is fixedly connected to the two spring fours (74) on the side, away from the connecting block (73).

7. A coupling according to claim 6, wherein: The limiting disc (75) is in sliding connection with the inner wall of the connecting sleeve (2), the inner wall of the connecting flange (3) is symmetrically fixedly connected with connecting rods (76), the outer side of the middle of the connecting rod (76) is fixedly connected with a fixed strip (77), one end of the fixed strip (77) is fixedly connected with a spring five (78), the end, away from the fixed strip (77), of the spring five (78) is fixedly connected with a sleeve ring (79), and the sleeve ring (79) is in sliding sleeve connection on the outer side of the connecting rod (76).

8. A coupling according to claim 7, wherein: One end of the fixed strip (77), away from the connecting rod (76), is fixedly connected with a piston rod (710), the side, away from the shaft sleeve portion (1), of the limiting disc (75) is symmetrically fixedly mounted with sleeve sleeves (711), the inner side of the limiting disc (75) is symmetrically provided with air channels (714), the piston rod (710) is attached to the inner wall of the sleeve sleeve (711), and the piston rod (710) is in sliding connection with the sleeve sleeve (711), and the sleeve sleeve (711) is in communication with the air channel (714).

9. A coupling according to claim 8, wherein: The outer side of the sleeve sleeve (711) is fixedly mounted with a one-way air inlet valve (712) and a one-way air outlet valve (713), the number of the connecting rod (76) is not less than two, and the number of the connecting rod (76) is same as that of the sleeve sleeve (711).

Images