CN209741952U - Quick crossover sub of excavator - Google Patents
Quick crossover sub of excavator Download PDFInfo
- Publication number
- CN209741952U CN209741952U CN201920387830.2U CN201920387830U CN209741952U CN 209741952 U CN209741952 U CN 209741952U CN 201920387830 U CN201920387830 U CN 201920387830U CN 209741952 U CN209741952 U CN 209741952U
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- hook
- swing arm
- frame body
- excavator
- swing
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Abstract
The utility model discloses an excavator quick crossover sub belongs to engineering machine tool technical field. The top of the conversion joint frame body is provided with a forearm mounting hole assembled with a forearm of an excavator, the bottom of the conversion joint frame body is provided with a left hook and a right hook, the left hook is a fixed hook, the right hook is a movable hook, the conversion joint frame body clamps a bucket mounting shaft of a bucket connecting seat through the fixed hook and the movable hook, the movable hook comprises a right hook, a swing arm and a rib plate, and the movable hook is fixed through a locking device; the locking device is composed of a locking plate, a link arm and a swing control device, the swing control device is a manual control device or an electric control device, the swing control device controls the swing of the locking plate, when the locking plate is reset, the device limits the swing arm of the movable hook to enable the swing arm to be incapable of moving, clamping is achieved, the swing of the locking plate is controlled, the swing arm can swing, and the movable hook can be quickly detached.
Description
Technical Field
the utility model relates to an excavator quick crossover sub belongs to engineering machine tool technical field.
Background
in order to expand the application range of the excavator, the small connecting rod arm of the excavator needs to replace working accessories such as a bucket, a breaking hammer, a hydraulic shear and the like through a quick joint. The known quick joint of the excavator can be divided into a hydraulic type and a mechanical type;
The hydraulic joint is high in cost, the movable hook is telescopic under the control of the hydraulic rod to achieve installation of the excavator bucket, the installation needs several seconds, and the movable hook needs to be connected with an excavator liquid path system, so that faults are prone to occurring.
The structure of the existing mechanical quick adapter is complex, and the operation time is long, so that the time is wasted. Patent numbers: CN201710298205.6 discloses an excavator quick-operation joint, this joint needs the manual work to rotate adjusting bolt, make the locking piece slide back and forth, and then adjust the activity couple and rotate, and then the tight bucket of hook, because the pitch of bolt is limited, want to adjust activity couple turned angle and realize going into earlier the bucket installation axle and then hooking tight installation axle, the rotatory bolt that needs to relapse just can realize, and the locking piece passes through the spring top tightly, it can consume a large amount of physical power to twist the bolt, also can waste more time, make the actual operation effect not ideal, therefore, very need a neotype excavator quick-operation joint to solve above-mentioned problem, both the cost is saved, the quick realization switching again.
SUMMERY OF THE UTILITY MODEL
in order to solve the deficiencies existing in the prior art, the utility model provides an excavator quick switching connects, the structure is simpler, and the cost of manufacture is cheaper, can realize the dismantlement and the installation of bucket in the twinkling of an eye, and single one-hand can be operated, also can realize remote operation through installation electromagnetism push rod, lift electric cylinder, the time of having shortened excavator switching work accessory of very big degree, reduced staff's intensity of labour, improved staff's work efficiency.
The utility model provides a technical scheme that its technical problem adopted is: a quick conversion joint of an excavator comprises a conversion joint frame body, a fixed hook and a movable hook, wherein a forearm mounting hole assembled with a forearm of the excavator is formed in the top of the conversion joint frame body;
The conversion joint frame body consists of a front side plate, a rear side plate, an intermediate rotating shaft, a lower rotating shaft, a frame body left connecting post, a frame body right connecting post and a stop block, wherein the front side plate and the rear side plate are fixedly connected through the frame body left connecting post and the frame body right connecting post; the middle rotating shaft is provided with a locking device, and the lower rotating shaft is provided with a movable hook;
The movable hook is composed of a right hook, a swing arm and rib plates, the right hook is positioned at the right lower part of the front side plate and the rear side plate of the conversion joint frame body, the top wall of the right hook is contacted with the bottom wall of the conversion joint frame body, the opening of the right hook faces to the right, the left end of the right hook is provided with the swing arm, the end part of the swing arm is fixedly connected with the swing arm, the middle part of the swing arm is provided with a shaft sleeve hole, the swing arm is sleeved on the lower rotating shaft through the shaft sleeve hole, so that the right hook is connected with the conversion joint frame body, the swing arm is provided with the rib;
The locking device consists of a locking plate, a link arm and a swing control device, the locking plate is a plate body with a shaft sleeve hole at the top, and the locking plate is sleeved on the middle rotating shaft through the shaft sleeve hole so as to be connected with the adapter frame body; a link arm is fixedly connected to the side wall of the top end of the locking plate, the bottom end of the locking plate is contacted with the rear end of the swing arm, a stop block for stopping the locking plate from swinging forwards is arranged at the right end of the locking plate, a pair of stop blocks are respectively fixed on the front side wall and the rear side wall of the conversion joint frame body, a swing control device is arranged on the conversion joint frame body, and the swing control device is connected with the link arm of the locking plate and controls the swing of the link;
The swing control device is a manual control device or an electric control device, the manual control device consists of a pressure lever, a clamping piece and a tension spring, the tension spring hinged with a link arm of the lock plate is arranged on a left connecting column of a frame body of the conversion joint frame body, the pressure lever extending towards the right side is arranged at the top end of the lock plate, the clamping piece capable of clamping the pressure lever after being deformed is arranged on the swing arm, the pressure lever is pressed downwards to enable the front end of the pressure lever to be positioned between the clamping pieces on the swing arm, and the clamping force of the clamping piece can be prevented from being lifted up by the tension spring under the action; the locking plate swings clockwise through the pressure rod to separate the bottom end of the locking plate from the rear end of the swing arm, the swing arm swings with the lower rotating shaft as an axis under the gravity of the right hook of the swing arm due to the fact that the rear end of the swing arm is not limited by the locking plate, the right hook rotates with the lower rotating shaft as the axis to enable the opening of the swing arm to gradually face downwards, the bucket swings with the left bucket mounting shaft as the axis, the right bucket mounting shaft swings clockwise with the left bucket mounting shaft as the axis, the bucket is separated from the right hook gradually facing downwards from the opening, and the bucket is dismounted; when the swing arm swings along the hand needle, the clamping piece above the swing arm is gradually separated from the pressure rod, and the locking plate returns under the action of the tension spring;
The electric control device consists of a telescopic electromagnetic valve and a connecting rod, the telescopic electromagnetic valve is fixed on a frame body left connecting column of the adapter frame body, and the end part of a telescopic rod of the telescopic electromagnetic valve is hinged with a link arm of the lock plate through the connecting rod; the telescopic electromagnetic valve is connected with an inner circuit of the excavator through a lead, the switch of the telescopic electromagnetic valve is positioned in an excavator cab and extends out through the switch control telescopic electromagnetic valve, the telescopic electromagnetic valve supports a link arm through a connecting rod, a locking plate swings clockwise by taking an intermediate rotating shaft as an axis, the bottom end of the locking plate and the rear end of a swing arm are separated to realize unlocking, the switch is closed after the bucket is disassembled, the locking plate returns under the action of the telescopic electromagnetic valve, the telescopic electromagnetic valve is a micro electromagnetic valve, and the telescopic electromagnetic valve can be replaced by a telescopic electric cylinder with the same principle.
When the bottom end of the locking plate locks the rear end of the swing arm, the lower edge line of the locking plate bottom end chamfer surface is in contact with the lower edge line of the swing arm chamfer surface;
When the swing arm is under the condition of end right side couple atress, when wanting the clockwise oscillation, the terminal surface of its rear end chamfer face lower extreme line below and the terminal surface contact of jam plate bottom chamfer lower extreme line, make the swing arm realize the meshing with the contact surface of jam plate, the jam plate needs to use middle pivot as axle center counter-clockwise turning promptly, and the jam plate can't be realized rotating by dog bumping post, thereby play and lock dead effect with the swing arm through the jam plate, make the swing arm can't swing in the same direction as the hand needle, and the roof of right side couple contacts with the diapire of crossover sub frame body again, the unable counter-clockwise turning of swing arm also, then the unable redirecting of opening of right side couple, thereby firmly block the bucket installation axle of bucket.
When the rapid conversion connector is needed to be disassembled, the locking plate is enabled to swing clockwise through the manual control device or the electric control device, chamfers are arranged at the contact positions of the locking plate and the swing arm, when the locking plate swings clockwise, a chamfer inclined plane above the lower edge line of the chamfer at the bottom end of the locking plate cannot contact with the end face at the rear end of the swing arm, the swinging can be easily realized, once the locking plate is unlocked, when the rapid conversion connector frame body is lifted, a right side bucket installation shaft directly drives a right side hook under the action of the self weight of the bucket, and the rear end of the swing arm can continuously swing clockwise due to the fact that the swing arm is not tightly fixed by the locking plate, so that the rotating shaft below the right side hook swings clockwise, the right side hook opening gradually faces downwards, and the bucket right side bucket installation shaft falls off;
Support body right branch spliced pole can spacing swing volume of swing arm, under the circumstances of jam plate unblock, when the swing arm during the dead weight of tip right side couple is swung down, its rear end swing arm and support body right branch spliced pole contact, when swing arm and support body right branch spliced pole contact, the distance on left side couple axle center to swing arm tip right side couple opening top is the same with the distance of two excavator bucket installation axles of excavator bucket.
When the buckets need to be quickly installed, a bucket connecting seat of each bucket faces upwards, namely two bucket installing shafts are positioned above the buckets, and a forearm of an excavator provided with the quick conversion joint is controlled, wherein a left hook of a conversion joint frame body is clamped on the left bucket installing shaft, the excavator forearm is pressed downwards by taking the left bucket installing shaft as an axis, the conversion joint frame body swings clockwise by taking the left bucket installing shaft as the axis, a right hook below a swing arm in contact with a frame body right connecting post of the conversion joint frame body is close to the right bucket installing shaft, the top end of an opening of the right hook is in contact with the top wall of the right bucket installing shaft and continues to move, the right hook rotates by taking a contact line of the right bucket installing shaft as the axis, the axis of the right hook gradually coincides with the axis of the right bucket installing shaft, and the opening of the right hook also faces to the right side gradually in the process, until the top wall of the right hook is contacted with the bottom wall of the conversion joint frame body, the swing arm is locked by the locking plate, the side wall below the opening of the right hook supports and fixes the mounting shaft of the right bucket, the right hook is limited, and the whole bucket is mounted; in the installation, the jam plate is in the state of locking, and when the swing arm counter-clockwise turning, its rear end contacts the chamfer of jam plate bottom earlier, returns along its chamfer with jam plate bottom contact state, and the jam plate does not set up clockwise turning stop device, and slight clockwise turning can take place for the jam plate to the tension spring of manual control device or electric control device's connecting rod in the twinkling of an eye of the contact.
the installation shaft positions of the bucket, the breaking hammer and the hydraulic shear of the working accessory matched with the excavator with the type are the same, so that the quick change-over joint of the excavator can realize quick assembly and disassembly of the bucket, the breaking hammer and the hydraulic shear at the same time.
The device can be enlarged or reduced in equal proportion according to different sizes and models of the excavator, so that the device is matched with various models for use.
the utility model has the advantages that: the problems of high cost and low efficiency of the conventional excavator quick adapter are solved, the structure layout is less, the structure is simpler, the manufacture is easier, the manufacture cost is lower, the disassembly of the excavator bucket can be instantly realized only by pressing down the pressure rod with one hand by a single person, the connecting rod mechanism is adopted, the force for pressing down the pressure rod during manual operation is reduced, the excavator bucket automatically returns after being disassembled, manual operation is not needed during the installation of the excavator bucket, and the excavator bucket can be directly installed; the required power of jam plate unblock is minimum, and miniature electromagnetism push rod or lift electric cylinder also can promote it, through wire and interior circuit connection of car, can realize remote operation, very big degree shortened the time of excavator switching work accessory, reduced staff's intensity of labour, improved staff's work efficiency.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic structural view after the partial section of the present invention.
fig. 4 is an enlarged view of the present invention in a partial cross-sectional view.
fig. 5 is a schematic structural diagram of the present invention during unlocking.
Fig. 6 is a process diagram of the present invention when the bucket is disassembled.
Fig. 7 is a schematic structural view of the utility model with the bucket removed.
fig. 8 is a schematic structural view of the excavator bucket of the present invention.
Fig. 9 is a schematic structural view of the excavator bucket of the present invention.
Fig. 10 is a schematic structural view of the electric control device for replacing the lock plate according to the present invention.
Fig. 11 is a partial enlarged view of the electric control device for replacing the lock plate of the present invention.
Fig. 12 is a schematic structural view of the electric control device for replacing the lock plate during unlocking.
Fig. 13 is a schematic view of the structure of the conversion joint frame of the present invention.
Fig. 14 is a sectional view of the structure of the conversion joint frame body of the present invention.
Fig. 15 is a schematic view of the frame structure for installing the lock plate of the present invention.
fig. 16 is a schematic structural view of the swing arm type movable hook of the present invention.
Fig. 17 is a schematic structural view of the swing arm type movable hook of the present invention.
fig. 18 is a schematic structural view of the present invention.
Fig. 19 is a schematic structural diagram of the present invention.
Reference numbers in the figures:
1. Conversion joint support body, 2, left side couple, 3, right side couple, 4, the bucket, 5, bucket installation axle, 6, bucket connecting seat, 7, forearm installation axle, 8, middle pivot, 9, lower pivot, 10, the swing arm, 11, the jam plate, 12, support body left side spliced pole, 13, support body right side spliced pole, 14, the dog, 15, the pitman arm, 16, the depression bar, 17, the clamping piece, 18, the extension spring, 19, flexible solenoid valve, 20, the connecting rod, 21, forearm mounting hole, 22, the gusset.
Detailed Description
As shown in fig. 1-19, a quick adapter for an excavator comprises an adapter frame body 1, a fixed hook and a movable hook, wherein a forearm mounting hole 21 assembled with a forearm of the excavator is formed in the top of the adapter frame body 1, a left hook and a right hook are arranged at the bottom of the adapter frame body 1, a left hook 2 is a fixed hook, a right hook 3 is a movable hook, the adapter frame body 1 clamps a bucket mounting shaft 5 of a bucket connecting seat 6 through the fixed hook and the movable hook, and the movable hook is fixed through a locking device;
The conversion joint frame body 1 consists of a front side plate, a rear side plate, a middle rotating shaft 8, a lower rotating shaft 9, a frame body left connecting column 12, a frame body right connecting column 13 and a stop block 14, the front side plate and the rear side plate are fixedly connected through the frame body left connecting column 12 and the frame body right connecting column 13, a fixed hook notch is formed in the left lower portion of the front side plate and the rear side plate of the conversion joint frame body 1, the notch is a left side hook 2 with an opening facing to the left side, small arm mounting holes 21 assembled with small arms of an excavator are formed in the front side plate and the rear side plate, an excavator small arm mounting shaft 7 is inserted into the small arm mounting holes 21, the middle rotating shaft 8 is arranged in the middle between the front side plate and the rear side plate of the conversion joint frame body 1; a locking device is arranged on the middle rotating shaft 8, and a movable hook is arranged on the lower rotating shaft 9;
The movable hook is composed of a right-side hook 3, a swing arm 10 and rib plates 22, the right-side hook 3 is positioned at the right lower parts of the front side plate and the rear side plate of the conversion joint frame body 1, the top wall of the right-side hook 3 is contacted with the bottom wall of the conversion joint frame body 1, the opening of the right-side hook faces to the right, the swing arm 10 with the end part fixedly connected with the right-side hook 3 is arranged at the left end of the right-side hook 3, a shaft sleeve hole is arranged in the middle of the swing arm 10, the swing arm 10 is sleeved on the lower rotating shaft 9 through the shaft sleeve hole, so that the right-side hook 3 is connected with the conversion joint frame body 1, the rib plates 22 for;
The locking device consists of a locking plate 11, a link arm 15 and a swing control device, wherein the locking plate 11 is a plate body with a shaft sleeve hole at the top, and the locking plate 11 is sleeved on the middle rotating shaft 8 through the shaft sleeve hole so as to be connected with the conversion joint frame body 1; a link arm 15 is fixedly connected to the side wall of the top end of the locking plate 11, the bottom end of the locking plate 11 is contacted with the rear end of the swing arm 10, a stop block 14 for stopping the locking plate 11 from swinging forwards is arranged at the right end of the locking plate 11, a pair of stop blocks 14 are respectively fixed on the front side wall and the rear side wall of the conversion joint frame body 1, a swing control device is arranged on the conversion joint frame body 1, and the swing control device is connected with the link arm 15 of the locking plate 11 to control the swing of the;
The swing control device is a manual control device or an electric control device, the manual control device consists of a pressure lever 16, a clamping piece 17 and a tension spring 18, the tension spring 18 hinged with a link arm 15 of a lock plate 11 is arranged on a left connecting column 12 of the adapter frame 1, the pressure lever 16 extending to the right side is arranged at the top end of the lock plate 11, the clamping piece 17 capable of clamping the pressure lever 16 after deformation is arranged on the swing arm 10, the pressure lever 16 is pressed downwards to enable the front end of the pressure lever 16 to be positioned between the clamping pieces 17 on the swing arm 10, and the clamping force of the clamping piece 17 can prevent the tension spring 18 from lifting the clamping piece under the action of a lever principle; the locking plate 11 swings clockwise through the pressure lever 16, so that the bottom end of the locking plate is separated from the rear end of the swing arm 10, the swing arm 10 swings with the lower rotating shaft 9 as an axis under the gravity of the right side hook 3 of the swing arm due to the fact that the rear end of the swing arm is not limited by the locking plate 11, the right side hook 3 rotates with the lower rotating shaft 9 as the axis, the opening of the swing arm gradually faces downwards, the bucket swings with the left side bucket mounting shaft 5 as the axis, the right side bucket mounting shaft 5 swings clockwise with the left side bucket mounting shaft 5 as the axis, and the bucket is separated from the right side hook 3 with the opening gradually facing downwards, and the bucket is; when the swing arm 10 swings along the hand needle, the clamping piece 7 above the swing arm is gradually separated from the pressure lever 16, and the locking plate 11 returns under the action of the tension spring 18;
the electric control device consists of a telescopic electromagnetic valve 19 and a connecting rod 20, the telescopic electromagnetic valve 19 is fixed on the frame body left connecting column 12 of the conversion joint frame body 1, and the end part of a telescopic rod of the telescopic electromagnetic valve 19 is hinged with the connecting rod 15 of the locking plate 11 through the connecting rod 20; the telescopic electromagnetic valve 19 is connected with a circuit in the excavator through a lead, the switch of the telescopic electromagnetic valve 19 is positioned in an excavator cab, the telescopic electromagnetic valve 19 is controlled to extend out through the switch, the telescopic electromagnetic valve 19 supports the link arm 15 through the link rod 20, the lock plate 11 swings clockwise by taking the middle rotating shaft 8 as an axis, the bottom end of the lock plate is separated from the rear end of the swing arm 10 to realize unlocking, the switch is closed after the excavator bucket is disassembled, the lock plate 11 returns under the action of the telescopic electromagnetic valve 19, the telescopic electromagnetic valve 19 is a micro electromagnetic valve, and the telescopic electromagnetic valve 19 can be replaced by a telescopic electric cylinder with the same principle.
When the bottom end of the locking plate 11 locks the rear end of the swing arm 10, the lower edge line of the chamfer surface at the bottom end of the locking plate 11 is in contact with the lower edge line of the chamfer surface of the swing arm 10;
when the swing arm 10 is under the stress of the right hook 3 at the end part, and the swing arm is supposed to swing clockwise, the end surface below the lower edge of the rear end chamfer surface of the swing arm is in contact with the end surface below the lower edge of the bottom chamfer of the lock plate 11, so that the contact surface of the swing arm 10 and the lock plate 11 is engaged, namely the lock plate 11 needs to swing anticlockwise by taking the middle rotating shaft 8 as an axis, and the lock plate 11 cannot be rotated by the stop block 14, so that the swing arm 10 is locked by the lock plate 11, the swing arm 10 cannot swing along the hand needle, the top wall of the right hook 3 is in contact with the bottom wall of the conversion joint frame body 1, the swing arm 10 cannot swing anticlockwise, the opening of the right hook 3 cannot change the direction, and the bucket mounting shaft 5 of the bucket is firmly clamped.
When the rapid conversion adapter frame body 1 needs to be disassembled, the locking plate 11 swings clockwise through a manual control device or an electric control device, because chamfers are arranged at the contact parts of the locking plate 11 and the swing arm 10, when the locking plate 11 swings clockwise, the chamfer inclined plane above the lower edge line of the chamfer at the bottom end of the locking plate 11 cannot contact with the end face at the rear end of the swing arm 10, the swinging can be easily realized, once the locking plate 11 is unlocked, and then the rapid conversion adapter frame body 1 is lifted, under the action of the self weight of the bucket, the right bucket mounting shaft 5 directly drives the right hook 3, because the swing arm 10 is not tightly fixed by the locking plate 11, the rear end of the right bucket mounting shaft can continuously swing clockwise, so that the right hook 3 swings clockwise by taking the rotating shaft 9 as an axis, the right hook 3 gradually faces downwards, and the bucket right bucket mounting shaft 5 falls off from the right;
support body right branch spliced pole 13 can spacing swing volume of swing arm 10, under the circumstances of jam plate 11 unblock, when swing arm 10 during at the dead weight of tip right side couple 3, its rear end swing arm 10 and support body right branch spliced pole 13 contact, when swing arm 10 and support body right branch spliced pole 13 contact, the distance on 2 axle centers of left side couple 10 tip right side couple 3 opening tops of swing arm is the same with two excavator bucket installation axles 5's of excavator bucket distance.
when the bucket needs to be quickly installed, the bucket connecting seat 6 of the bucket faces upwards, namely two bucket installation shafts 5 are positioned above the bucket, the forearm of the excavator provided with the quick conversion joint is controlled, the left side hook 2 of the conversion joint frame body 1 is clamped on the left side bucket installation shaft 5, the forearm of the excavator is pressed downwards by taking the left side bucket installation shaft 5 as an axis, the conversion joint frame body 1 swings clockwise by taking the left side bucket installation shaft 5 as the axis, the right side hook 3 below the swing arm 10 contacted with the frame body right connecting post 13 of the conversion joint frame body 1 is close to the right side bucket installation shaft 5, the opening top end of the right side hook 3 is contacted with the top wall of the right side bucket installation shaft 5 and continues to move, the right side hook 3 rotates by taking the right side bucket installation shaft 5 as the axis, and the axis of the right side hook 3 is gradually coincided with the axis of the right side bucket installation shaft 5, in the process, the opening of the right hook 3 gradually faces to the right side until the top wall of the right hook 3 is contacted with the bottom wall of the conversion joint frame body 1, the swing arm 10 is locked by the locking plate 11, the side wall below the opening of the right hook 3 supports and fixes the right bucket mounting shaft 5, the right hook 3 is limited, and the whole bucket is mounted; in the installation process, the locking plate 11 is in a locking state, when the swing arm 10 swings anticlockwise, the rear end of the locking plate contacts the chamfer at the bottom end of the locking plate 11 first, and returns to a state of contacting with the bottom end of the locking plate 11 along the chamfer, the locking plate 11 is not provided with a clockwise swing limiting device, and a tension spring 18 of a manual control device or a connecting rod 20 of an electric control device can allow the locking plate 11 to swing slightly clockwise at the moment of contact.
The installation shaft positions of the bucket, the breaking hammer and the hydraulic shear of the working accessory matched with the excavator with the type are the same, so that the quick change-over joint of the excavator can realize quick assembly and disassembly of the bucket, the breaking hammer and the hydraulic shear at the same time.
The device can be enlarged or reduced in equal proportion according to different sizes and models of the excavator, so that the device is matched with various models for use.
Claims (5)
1. A quick conversion joint of an excavator comprises a conversion joint frame body (1), a fixed hook and a movable hook, wherein a small arm mounting hole (21) assembled with a small arm of the excavator is formed in the top of the conversion joint frame body (1), a left hook and a right hook are arranged at the bottom of the conversion joint frame body (1), a left hook (2) is a fixed hook, a right hook (3) is a movable hook, the conversion joint frame body (1) clamps a bucket mounting shaft (5) of a bucket connecting seat (6) through the fixed hook and the movable hook, and the movable hook is fixed through a locking device; the method is characterized in that: the excavator front and rear side plates are fixedly connected with each other through the frame body left connecting column (12) and the frame body right connecting column (13), fixed hook openings are formed in the left lower portions of the front side plate and the rear side plate of the conversion joint frame body (1), the openings of the fixed hook openings face the left side hook (2), small arm mounting holes (21) assembled with small arms of an excavator are formed in the front side plate and the rear side plate, the small arm mounting shafts (7) of the excavator are inserted into the small arm mounting holes (21), the middle portion between the front side plate and the rear side plate of the conversion joint frame body (1) is provided with the middle rotating shaft (8), and the lower right portion between the front side plate and the rear side plate of the conversion joint frame body (1) is provided with the lower rotating shaft (9); a locking device is arranged on the middle rotating shaft (8), and a movable hook is arranged on the lower rotating shaft (9); the movable hook is composed of a right side hook (3), a swing arm (10) and rib plates (22), the right side hook (3) is positioned at the right lower part of the front side plate and the rear side plate of the conversion joint frame body (1), the top wall of the right side hook is contacted with the bottom wall of the conversion joint frame body (1), the opening of the right side hook faces to the right, the swing arm (10) with the end part fixedly connected with the right side hook is arranged at the left end of the right side hook (3), a shaft sleeve hole is formed in the middle of the swing arm (10), the swing arm (10) is sleeved on the lower rotating shaft (9) through the shaft sleeve hole, so that the right side hook (3) is connected with the conversion joint frame body (1), the rib plates (22) for increasing the connecting force with the right side hook (3) are arranged on the swing arm (10; the locking device consists of a locking plate (11), a link arm (15) and a swing control device, wherein the locking plate (11) is a plate body with a shaft sleeve hole at the top, and the locking plate (11) is sleeved on the middle rotating shaft (8) through the shaft sleeve hole so as to be connected with the conversion joint frame body (1); a link arm (15) is fixedly connected to the side wall of the top end of the lock plate (11), the bottom end of the lock plate (11) is contacted with the rear end of the swing arm (10), a stop block (14) for stopping the lock plate from swinging forwards is arranged at the right end of the lock plate (11), a pair of stop blocks (14) are respectively fixed to the front side wall and the rear side wall of the conversion joint frame body (1), a swing control device is arranged on the conversion joint frame body (1), and the swing control device is connected with the link arm (15) of the lock plate (11) to control the swing of the lock plate; the swing control device is a manual control device, the manual control device is composed of a pressure lever (16), a clamping piece (17) and a tension spring (18), the tension spring (18) hinged with a link arm (15) of a lock plate (11) is arranged on a frame body left connecting column (12) of a conversion joint frame body (1), the pressure lever (16) extending towards the right side is arranged at the top end of the lock plate (11), the clamping piece (17) capable of clamping the pressure lever (16) after deformation is arranged on a swing arm (10), the pressure lever (16) is pressed downwards to enable the front end of the pressure lever (16) to be located between the clamping pieces (17) on the swing arm (10), and the clamping force of the clamping piece (17) can be prevented from being lifted by the tension spring (18) under the action of a lever principle; the locking plate (11) swings clockwise through the pressure rod (16), so that the bottom end of the locking plate is separated from the rear end of the swing arm (10), the swing arm (10) does not have the limit of the locking plate (11) at the rear end, so that the swing arm (10) swings with the lower rotating shaft (9) as an axis under the gravity of the right side hook (3), the right side hook (3) rotates with the lower rotating shaft (9) as the axis, the opening of the swing arm gradually faces downwards, the excavator swings with the left side excavator mounting shaft (5) as the axis, the right side excavator mounting shaft (5) swings clockwise with the left side excavator mounting shaft (5) as the axis, and the swing arm breaks away from the right side hook (3) gradually downwards from the opening, and the disassembly of the excavator is realized; when the swing arm (10) swings along the hand needle, the clamping piece (17) above the swing arm is gradually separated from the pressure lever (16), and the lock plate (11) returns under the action of the tension spring (18).
2. The excavator quick transition joint of claim 1, wherein: the swing control device is an electric control device, the electric control device is composed of a telescopic electromagnetic valve (19) and a connecting rod (20), the telescopic electromagnetic valve (19) is fixed on a frame body left connecting column (12) of the conversion joint frame body (1), and the end part of the telescopic rod of the telescopic electromagnetic valve (19) is hinged with a connecting rod arm (15) of the lock plate (11) through the connecting rod (20); flexible solenoid valve (19) pass through wire and excavator built-in circuit connection, the switch of flexible solenoid valve (19) is located the excavator driver's cabin, stretch out through on-off control flexible solenoid valve (19), flexible solenoid valve (19) prop up pitman arm (15) through connecting rod (20), it uses middle pivot (8) as axle center clockwise swing to be jam plate (11), make its bottom and swing arm (10) rear end separately realize the unblock, close the switch after the bucket is dismantled, jam plate (11) playback under the effect of flexible solenoid valve (19), flexible solenoid valve (19) be miniature solenoid valve, flexible solenoid valve (19) also can be replaced by the flexible electric jar that the principle is the same.
3. The excavator quick transition joint of claim 1, wherein: the upper part of the rear end of the swing arm (10) is provided with a chamfer, the right side of the bottom end of the lock plate (11) is provided with a chamfer, and when the rear end of the swing arm (10) is locked at the bottom end of the lock plate (11), the lower edge line of the chamfer surface at the bottom end of the lock plate (11) is in contact with the lower edge line of the chamfer surface of the swing arm (10).
4. The excavator quick transition joint of claim 1, wherein: support body right branch spliced pole (13) can spacing swing volume of swing arm (10), under the condition of jam plate (11) unblock, when swing arm (10) during the dead weight of tip right side couple (3) is swung down, its rear end swing arm (10) and support body right branch spliced pole (13) contact, when swing arm (10) and support body right branch spliced pole (13) contact, the distance on left side couple (2) axle center to swing arm (10) tip right side couple (3) opening top is the same with the distance of two excavator bucket installation axles (5) of excavator bucket.
5. the excavator quick transition joint of claim 1, wherein: the device can be enlarged or reduced in equal proportion according to different sizes and models of the excavator, so that the device is matched with various models for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920387830.2U CN209741952U (en) | 2019-03-26 | 2019-03-26 | Quick crossover sub of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920387830.2U CN209741952U (en) | 2019-03-26 | 2019-03-26 | Quick crossover sub of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209741952U true CN209741952U (en) | 2019-12-06 |
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ID=68718296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920387830.2U Withdrawn - After Issue CN209741952U (en) | 2019-03-26 | 2019-03-26 | Quick crossover sub of excavator |
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| Country | Link |
|---|---|
| CN (1) | CN209741952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109750708A (en) * | 2019-03-26 | 2019-05-14 | 于兴辉 | A kind of excavator quick switching joint |
-
2019
- 2019-03-26 CN CN201920387830.2U patent/CN209741952U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109750708A (en) * | 2019-03-26 | 2019-05-14 | 于兴辉 | A kind of excavator quick switching joint |
| CN109750708B (en) * | 2019-03-26 | 2023-09-29 | 于兴辉 | Quick adapter for excavator |
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