CN216038194U - Tail end clamp holder of folding arm crane - Google Patents
Tail end clamp holder of folding arm crane Download PDFInfo
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- CN216038194U CN216038194U CN202122488818.0U CN202122488818U CN216038194U CN 216038194 U CN216038194 U CN 216038194U CN 202122488818 U CN202122488818 U CN 202122488818U CN 216038194 U CN216038194 U CN 216038194U
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Abstract
The utility model discloses a tail end gripper of a folding arm crane, which comprises an upper connecting mechanism, a buffer mechanism, a slewing device and a balance adjusting mechanism clamping mechanism, wherein the upper connecting mechanism is connected with a main arm; a pin shaft type load sensor is arranged on the upper connecting mechanism; the upper connecting mechanism comprises an upper connecting piece, a middle connecting piece and a lower connecting piece which are mutually sleeved, and the side walls of the upper connecting piece, the middle connecting piece and the lower connecting piece are not contacted with each other. The pin shaft type load sensor only measures the structure below the pin shaft type load sensor and the gravity of the load, so that the accuracy of measuring the load is improved; the middle connecting piece and the lower connecting piece are separated by disassembling the fifth pin shaft, so that the main arm, the upper connecting mechanism, the buffer mechanism and the following structures can be disassembled and assembled, the pin shaft type load sensor does not need to be disassembled and assembled frequently, and the service life of the load sensor is prolonged.
Description
Technical Field
The utility model relates to the technical field of drilling and production equipment, in particular to a tail end clamp holder of a folding arm crane.
Background
The folding arm crane is an indispensable special device of the drilling platform, the tail end clamp holder is arranged at the tail end of the folding arm crane, and is an important component module of the folding arm crane, and is used for grabbing and moving pipes, and moving pipes such as drill rods, drill collars and sleeves on a deck yard of the drilling platform to a catwalk machine or reversely operating the pipes.
In the tail end clamp holder of the folding arm crane, a pin shaft type load sensor reflecting the load condition of the folding arm crane is usually arranged at the connecting part of the tail end clamp holder and the mechanical arm of the folding arm crane or the connecting part of the two parts of the upper connecting mechanism of the tail end clamp holder and is used for measuring the weight of the lifted material. If the pin shaft type load sensor is arranged at the part connected with the mechanical arm, when the tail end clamp holder swings, the pin shaft type load sensor for connection bears the force which is not only the weight of the lower structure of the pin shaft type load sensor but also includes the interaction force among the structures due to the asymmetric installation of the damping hydraulic cylinder, so that the measurement result is inaccurate. If the pin shaft type load sensor is arranged at the joint of the two parts of the upper connecting mechanism, the pin shaft type load sensor needs to be dismounted when the tail end clamp holder is dismounted.
When the folding arm crane lowers the tail end gripper to grab the pipe, the gripper is always aligned with the pipe, but a certain distance is left between the gripper and a target object in the vertical direction, the mechanical arm needs to be adjusted for multiple times to reach a proper position, the efficiency is low, and the operation is complex; when the pipe is lowered, the lifting appliance is easy to collide with a target object, so that the mechanical structure of the pipe and the target object are damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a tail end clamp holder of a folding arm crane, which solves the problems that a pin shaft type load sensor needs to be frequently disassembled and assembled, the measurement is not accurate, and the distance between the pin shaft type load sensor and a target object is long when a lifting appliance is lowered.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a tail end clamp holder of a folding arm crane comprises an upper connecting mechanism, a slewing device and a balance adjusting mechanism which are connected with a main arm of the folding arm crane, wherein the two ends of the balance adjusting mechanism are provided with clamping mechanisms, the outer sides of the clamping mechanisms are provided with pipe fittings adapters, a buffer mechanism is arranged between the upper connecting mechanism and the slewing device and comprises a hollow cuboid-shaped outer buffer column, the top ends of two opposite front side walls and the top ends of two opposite rear side walls of the outer buffer column are provided with connecting lug plates protruding upwards, and the middle parts of the connecting lug plates are connected with the bottom end of the upper connecting mechanism through first hinge pins; lower damping hydraulic cylinders are symmetrically arranged between the left side wall and the upper connecting mechanism and between the right side wall of the outer buffer column and the upper connecting mechanism; the upper parts of the front side wall and the rear side wall of the outer buffer column are symmetrically provided with second pin shaft mounting holes in a long circular shape, second pin shafts are mounted in the two second pin shaft mounting holes and are connected with the piston end of the jacking hydraulic cylinder, a cylinder seat of the jacking hydraulic cylinder is mounted at the lower part of the inner cavity of the inner buffer column through a third pin shaft, the upper part of the inner buffer column is sleeved in the inner cavity of the outer buffer column, and the bottom of the inner buffer column is mounted on the upper surface of the slewing device through a base;
a pin shaft type load sensor is arranged on the upper connecting mechanism; the upper connecting mechanism is hinged with the main arm through a fourth pin shaft, and the fourth pin shaft is vertical to the second pin shaft; a left damping hydraulic cylinder is installed between the upper connecting mechanism and the left side wall of the main arm, a right damping hydraulic cylinder is installed between the upper connecting mechanism and the right side wall of the main arm, and the left damping hydraulic cylinder and the right damping hydraulic cylinder are asymmetric in position.
Preferably, a proximity switch is installed on one side of the second pin shaft installation hole.
Preferably, a plurality of sinking grooves provided with fixing plates are formed in the side wall of the lower portion of the outer buffering column, a long-strip-shaped sliding block mounting groove is formed in the middle of each sinking groove, and a sliding block mounted in the middle of each fixing plate penetrates through the corresponding sliding block mounting groove and then is embedded in a sliding way formed in the outer wall of the inner buffering column.
Preferably, the upper connecting mechanism comprises an upper connecting piece, a middle connecting piece and a lower connecting piece which are sequentially sleeved from outside to inside and have a rectangular frame structure, and the side walls of the upper connecting piece, the middle connecting piece and the lower connecting piece are not contacted with each other; the top ends of the left side wall and the right side wall of the upper connecting piece are both provided with upper connecting lug plates, the upper parts of the upper connecting lug plates are symmetrically provided with fourth pin shaft mounting holes, and fourth pin shafts are mounted at the front ends of the two fourth pin shaft mounting holes and the main arm; a lower limiting groove is formed above the bottom edges of the middle lower parts of the front side wall and the rear side wall of the upper connecting piece;
the middle lower parts of the front side wall and the rear side wall of the middle connecting piece are symmetrically provided with fifth pin shaft mounting outer holes, and cylindrical sensor mounting seats are mounted on the left side wall and the right side wall of the middle connecting piece; a pin shaft type load sensor is arranged in the sensor mounting seat;
the centers of the bottom ends of the front side wall and the rear side wall of the lower connecting piece are both provided with lower connecting lug plates, the middle parts of the lower connecting lug plates are provided with first pin shaft mounting inner holes, and the first pin shafts penetrate through the rear two ends of the two first pin shaft mounting inner holes and extend out of the outer wall of the outer buffer column; a fifth pin shaft installation inner hole is formed above the first pin shaft installation inner hole; an upper limiting groove is formed above the middle part of the left side wall and the right side wall of the lower connecting piece;
after the upper connecting piece, the middle connecting piece and the lower connecting piece are sleeved, the two sensor mounting seats respectively penetrate through the left side wall and the right side wall of the upper connecting piece, and the end parts of the inner sides of the sensor mounting seats are positioned in the upper limiting grooves; two fifth pin shafts respectively penetrate through the fifth pin shaft mounting outer hole and the fifth pin shaft mounting inner hole on the same side, the rear ends of the two fifth pin shafts extend out of the side walls of the middle connecting piece and the lower connecting piece, and the outer side ends of the fifth pin shafts are located in the lower limiting groove.
Preferably, the outer sides of the two upper connecting lug plates are symmetrically provided with lug seats, the lug seat on the left side is hinged with a piston rod of a left damping hydraulic cylinder, and a cylinder seat of the left damping hydraulic cylinder is arranged on the connecting lug plate at the top of the left side wall of the main arm; the ear seat on the right side is connected with the piston end of the right damping hydraulic cylinder, and the cylinder seat of the right damping hydraulic cylinder is installed on the right side wall of the main arm.
Preferably, two damping hydraulic cylinder connecting lug plates are welded on two sides of the bottom plate of the lower connecting piece respectively, the damping hydraulic cylinder connecting lug plates are connected with piston ends of the two lower damping hydraulic cylinders respectively, and cylinder seats of the lower damping hydraulic cylinders are installed on the left side wall and the right side wall of the outer buffer column respectively.
Preferably, a detection device for detecting whether the pipe is clamped in place is installed on the outer side of the pipe adaptor.
The upper connecting mechanism comprises an upper connecting piece, a middle connecting piece and a lower connecting piece which are mutually sleeved, the side walls of the upper connecting piece, the middle connecting piece and the lower connecting piece are not contacted with each other, the upper connecting piece is connected with the main arm through an upper connecting lug plate, the left side wall and the right side wall of the upper connecting piece and the middle connecting piece are connected through a cylindrical sensor mounting seat, a pin shaft type load sensor is assembled in the sensor mounting seat, the middle connecting piece and the front side wall and the rear side wall of the lower connecting piece are mutually connected through a fifth pin shaft, the measurement data of the pin shaft type load sensor is not influenced by the mutual acting force between the upper connecting mechanism and other connecting mechanisms, only the structure below the pin shaft type load sensor and the gravity of the load are measured, and the accuracy of the load measurement is improved; by disassembling the fifth pin shaft and separating the middle connecting piece and the lower connecting piece, the main arm, the upper connecting mechanism, the buffer mechanism and the following structures can be disassembled and assembled without frequently disassembling the pin shaft type load sensor, and the service life of the load sensor is prolonged.
In the buffer mechanism, the outer buffer column and the inner buffer column are mutually sleeved, the height of the buffer mechanism can be changed by stretching and retracting the piston rod of the lifting hydraulic cylinder, the distance between a pipe and a target object is ensured, the collision of the pipe is reduced, and the reliability of hoisting is ensured.
According to the pipe fitting clamping device, the front side wall and the rear side wall of the outer buffering column are respectively provided with a second long round pin shaft mounting hole, the second pin shafts are mounted in the second pin shaft mounting holes, when the lower clamping mechanism is in contact with a pipe without stopping lowering, the inner buffering column and the structure below the inner buffering column can move for a distance along the direction opposite to the second pin shaft mounting holes under the connection of the telescopic hydraulic cylinder, the rigid impact force of the clamp holder and the pipe is buffered, and damage to a mechanical mechanism and the pipe is avoided; when the proximity switch detects the pin shaft for connecting the telescopic hydraulic cylinder and the outer buffer column, a signal is fed back to an operator in time, the clamp is stopped from being placed down, and the lifting operation is started.
Install the slider between outer buffering post and the interior buffering post, the slider is installed on the fixed plate, and the convenient adjustment slider of accessible and the distance between the slide have guaranteed the cooperation precision of slider and slide.
In the utility model, an upper connecting mechanism is connected with a main arm through a fourth pin shaft, the upper connecting mechanism and a buffer mechanism are mutually connected through a first pin shaft, and the first pin shaft is mutually vertical to the fourth pin shaft; a left damping hydraulic cylinder and a right damping hydraulic cylinder lever which are asymmetric in position are arranged between the upper connecting mechanism and the main arm, two lower damping hydraulic cylinders which are bilaterally symmetric are arranged between the upper connecting mechanism and the buffer mechanism, the clamping mechanism can swing in any direction relative to the main arm of the folding arm crane, and the four damping hydraulic cylinders can reduce the swing amplitude and frequency of the clamping mechanism.
According to the utility model, the front side wall and the rear side wall of the upper connecting piece are provided with the lower limiting grooves, and the left side wall and the right side wall of the lower connecting piece are provided with the upper limiting grooves, so that the assembly precision among the upper connecting piece, the middle connecting piece and the lower connecting piece is ensured, and the upper connecting mechanism has a compact structure and a reasonable volume.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention of FIG. 1;
FIG. 3 is a schematic view of the connection of the upper connection mechanism to the main arm of FIG. 1;
FIG. 4 is a longitudinal cross-sectional view of the upper attachment mechanism of FIG. 1;
FIG. 5 is a schematic view of the upper link of FIG. 4;
FIG. 6 is a schematic view of the structure of the intermediate linkage of FIG. 4;
FIG. 7 is a schematic view of the construction of the lower connector of FIG. 4;
FIG. 8 is a schematic view of the structure of the buffer column of FIG. 1;
FIG. 9 is a longitudinal sectional view of the strut of FIG. 8;
FIG. 10 is a schematic structural view of the outer buffer column of FIG. 8;
FIG. 11 is a schematic view of the structure of the inner strut of FIG. 8;
in the figure: 1. upper connecting mechanism 101, upper connecting lug plate 102, fourth pin shaft mounting hole 103, lower limiting groove 104, first pin shaft 105, upper connecting piece 106, middle connecting piece 107, lower connecting piece 108, fifth pin shaft mounting outer hole 109, sensor mounting seat 110, fourth pin shaft 111, lower connecting lug plate 112, first pin shaft mounting inner hole 113, upper limiting groove 114, fifth pin shaft 115, fifth pin shaft mounting inner hole 116, lug seat 117, damping cylinder connecting lug plate 2, buffer mechanism 201, outer buffer column 202, inner buffer column 203, jacking cylinder 204, slide block 205, fixing plate 206, second pin shaft 207, proximity switch 208, third pin shaft 209, second pin shaft mounting hole 210, base 211, slide way 212, sink groove 213, slide block mounting groove 3, slewing device 4, balance adjusting mechanism, 5. the device comprises a clamping mechanism, 6, a pipe fitting adapter, 7, a detection device, 8, a lower damping hydraulic cylinder, 9, a right damping hydraulic cylinder, 10, a left damping hydraulic cylinder, 11, a pin shaft type load sensor, 12 and a main arm.
Detailed Description
A tail end clamp holder of a folding arm crane comprises an upper connecting mechanism 1, a rotary device 3 and a balance adjusting mechanism 4 which are connected with a main arm 12 of the folding arm crane, wherein the two ends of the balance adjusting mechanism 4 are provided with clamping mechanisms 5, the outer sides of the clamping mechanisms 5 are provided with pipe fittings 6, a buffer mechanism 2 is arranged between the upper connecting mechanism 1 and the rotary device 3, the buffer mechanism 2 comprises a hollow cuboid-shaped outer buffer column 201, the top ends of two opposite front side walls and back side walls of the outer buffer column 201 are provided with connecting lug plates protruding upwards, and the middle parts of the connecting lug plates are connected with the bottom end of the upper connecting mechanism 1 through a first pin shaft 104; lower damping hydraulic cylinders 8 are symmetrically arranged between the left side wall and the right side wall of the outer buffer column 201 and the upper connecting mechanism 1; the upper parts of the front side wall and the rear side wall of the outer buffer column 201 are symmetrically provided with second pin shaft mounting holes 209 in a long circle shape, second pin shafts 206 are mounted in the two second pin shaft mounting holes 209, the second pin shafts 206 are connected with the piston end of the jacking hydraulic cylinder 203, the cylinder seat of the jacking hydraulic cylinder 203 is mounted at the lower part of the inner cavity of the inner buffer column 202 through third pin shafts 208, the upper part of the inner buffer column 202 is sleeved in the inner cavity of the outer buffer column 201, and the bottom of the inner buffer column 202 is mounted on the upper surface of the rotary device 3 through a base 210;
a pin shaft type load sensor 11 is arranged on the upper connecting mechanism 1; the upper connecting mechanism 1 is hinged with the main arm 12 through a fourth pin 110, and the fourth pin 110 is perpendicular to the second pin 206; a left damping hydraulic cylinder 10 is installed between the upper connecting mechanism 1 and the left side wall of the main arm 12, a right damping hydraulic cylinder 9 is installed between the upper connecting mechanism and the right side wall of the main arm 12, and the left damping hydraulic cylinder 10 and the right damping hydraulic cylinder 9 are asymmetric in position.
A proximity switch 207 is installed at one side of the second pin shaft installation hole 209.
The lower side wall of the outer buffer column 201 is provided with a plurality of sinking grooves 212 provided with fixing plates 205, the middle part of the sinking grooves 212 is provided with a long-strip-shaped sliding block mounting groove 213, and the sliding block 204 arranged at the middle part of the fixing plate 250 penetrates through the sliding block mounting groove 213 and then is embedded in a slide 211 arranged on the outer wall of the inner buffer column 202.
The upper connecting mechanism 1 comprises an upper connecting piece 105, a middle connecting piece 106 and a lower connecting piece 107 which are sequentially sleeved from outside to inside and have a cuboid frame structure, and the side walls of the upper connecting piece 105, the middle connecting piece 106 and the lower connecting piece 107 are not contacted with each other;
the top ends of the left side wall and the right side wall of the upper connecting piece 105 are both provided with an upper connecting lug plate 101, the upper part of the upper connecting lug plate 101 is symmetrically provided with fourth pin shaft mounting holes 102, and fourth pin shafts 110 are mounted at the front ends of the two fourth pin shaft mounting holes 102 and the main arm 12; a lower limiting groove 103 is formed above the bottom edges of the middle lower parts of the front side wall and the rear side wall of the upper connecting piece 105;
fifth pin shaft mounting outer holes 108 are symmetrically formed in the middle lower portions of the front side wall and the rear side wall of the middle connecting piece 106, and cylindrical sensor mounting seats 109 are mounted on the left side wall and the right side wall of the middle connecting piece 106; a pin shaft type load sensor 11 is arranged in the sensor mounting seat 109;
the bottom centers of the front side wall and the rear side wall of the lower connecting piece 107 are both provided with a lower connecting lug plate 111, the middle part of the lower connecting lug plate 111 is provided with a first pin shaft mounting inner hole 112, and the first pin shaft 104 penetrates through the rear two ends of the two first pin shaft mounting inner holes 112 and extends out of the outer wall of the outer buffer column 201; a fifth pin mounting inner hole 115 is formed above the first pin mounting inner hole 112; an upper limit groove 113 is formed above the middle part of the left side wall and the right side wall of the lower connecting piece 107;
after the upper connecting piece 105, the middle connecting piece 106 and the lower connecting piece 107 are sleeved, the two sensor mounting seats 109 respectively penetrate through the left side wall and the right side wall of the upper connecting piece 105, and the end parts of the inner sides of the sensor mounting seats 109 are positioned in the upper limiting grooves 113; two fifth pins 114 respectively penetrate through the fifth pin mounting outer hole 108 and the fifth pin mounting inner hole 115 on the same side, and then the rear ends of the two fifth pins extend out of the side walls of the middle connecting piece 106 and the lower connecting piece 107, and the outer end parts of the fifth pins 114 are located in the lower limiting groove 103.
The outer sides of the two upper connecting lug plates 101 are symmetrically provided with lug seats 116, the lug seat 116 on the left side is hinged with a piston rod of the left damping hydraulic cylinder 10, and a cylinder seat of the left damping hydraulic cylinder 10 is arranged on the connecting lug plate at the top of the left side wall of the main arm 12; the right ear seat 116 is connected with the piston end of the right damping hydraulic cylinder 9, and the cylinder seat of the right damping hydraulic cylinder 9 is installed on the right side wall of the main arm 12.
Two damping hydraulic cylinder connecting lug plates 117 are welded on two sides of the bottom plate of the lower connecting piece 107 respectively, the damping hydraulic cylinder connecting lug plates 117 are connected with the piston ends of the two lower damping hydraulic cylinders 8 respectively, and cylinder seats of the lower damping hydraulic cylinders 8 are installed on the left side wall and the right side wall of the outer buffer column 201 respectively.
A detection device 7 for detecting whether the pipe is clamped in place is arranged on the outer side of the pipe adaptor 6.
In the utility model, the upper connecting mechanism 1 comprises an upper connecting piece 105, a middle connecting piece 106 and a lower connecting piece 107 which are mutually sleeved, the side walls of the upper connecting piece 105, the middle connecting piece 106 and the lower connecting piece 107 are not contacted with each other, the upper connecting piece 105 is connected with the main arm 12 through an upper connecting lug plate 101, the left side wall and the right side wall of the upper connecting piece 105 and the middle connecting piece 106 are connected through a cylindrical sensor mounting seat 109, a pin type load sensor 11 is arranged in the sensor mounting seat 109, the middle connecting piece 106 and the front side wall and the rear side wall of the lower connecting piece 107 are mutually connected through a fifth pin shaft 114, the measurement data of the pin type load sensor 11 is not influenced by the mutual acting force between the upper connecting mechanism 1 and other connecting mechanisms any more, only the gravity of the structure below the pin type load sensor 11 and the shaft type load is measured, and the accuracy of the measurement load is improved; by detaching the fifth pin 114 and separating the middle connecting member 106 and the lower connecting member 107, the main arm 12 can be detached from the upper connecting mechanism 1, the buffer mechanism 2 and the following structures without frequently detaching the pin-type load sensor 11, and the service life of the load sensor 11 is prolonged.
Claims (7)
1. The utility model provides a roll over terminal holder of arm and hang, includes upper portion coupling mechanism (1), slewer (3) and balanced adjustment mechanism (4) that are connected with main arm (12) that roll over the arm and hang, and fixture (5) are installed at the both ends of balanced adjustment mechanism (4), and pipe utensil adapter (6), its characterized in that are all installed in the outside of fixture (5): a buffer mechanism (2) is arranged between the upper connecting mechanism (1) and the rotating device (3), the buffer mechanism (2) comprises a hollow cuboid-shaped outer buffer column (201), the top ends of two opposite front side walls and back side walls of the outer buffer column (201) are respectively provided with a connecting lug plate protruding upwards, and the middle part of the connecting lug plate is connected with the bottom end of the upper connecting mechanism (1) through a first pin shaft (104); lower damping hydraulic cylinders (8) are symmetrically arranged between the left side wall and the right side wall of the outer buffer column (201) and the upper connecting mechanism (1); the upper parts of the front side wall and the rear side wall of the outer buffering column (201) are symmetrically provided with second long round pin shaft mounting holes (209), second pin shafts (206) are mounted in the two second pin shaft mounting holes (209), the second pin shafts (206) are connected with the piston end of the jacking hydraulic cylinder (203), the cylinder seat of the jacking hydraulic cylinder (203) is mounted at the lower part of the inner cavity of the inner buffering column (202) through third pin shafts (208), the upper part of the inner buffering column (202) is sleeved in the inner cavity of the outer buffering column (201), and the bottom of the inner buffering column (202) is mounted on the upper surface of the slewing device (3) through a base (210);
a pin shaft type load sensor (11) is arranged on the upper connecting mechanism (1); the upper connecting mechanism (1) is hinged with the main arm (12) through a fourth pin shaft (110), and the fourth pin shaft (110) is vertical to the second pin shaft (206); a left damping hydraulic cylinder (10) is installed between the upper connecting mechanism (1) and the left side wall of the main arm (12), a right damping hydraulic cylinder (9) is installed between the upper connecting mechanism and the right side wall of the main arm (12), and the left damping hydraulic cylinder (10) and the right damping hydraulic cylinder (9) are asymmetric in position.
2. The folding arm boom tip holder according to claim 1, wherein: and a proximity switch (207) is arranged on one side of the second pin shaft mounting hole (209).
3. A knuckle boom end gripper according to claim 1 or 2, wherein: the lower part lateral wall of outer buffering post (201) is seted up the heavy groove (212) that the several was installed fixed plate (205), and long banding slider mounting groove (213) have been seted up at the middle part of heavy groove (212), install slider (204) in fixed plate (250) middle part and run through slider mounting groove (213) after inlay the dress and set up in slide (211) on the outer wall of interior buffering post (202).
4. The folding arm boom tip holder according to claim 3, wherein: the upper connecting mechanism (1) comprises an upper connecting piece (105), a middle connecting piece (106) and a lower connecting piece (107) which are sequentially sleeved from outside to inside and have a cuboid frame structure, and the side walls of the upper connecting piece, the middle connecting piece (106) and the lower connecting piece (107) are not in contact with each other;
the top ends of the left side wall and the right side wall of the upper connecting piece (105) are respectively provided with an upper connecting lug plate (101), the upper part of each upper connecting lug plate (101) is symmetrically provided with fourth pin shaft mounting holes (102), and fourth pin shafts (110) are mounted at the front ends of the two fourth pin shaft mounting holes (102) and the main arm (12); a lower limiting groove (103) is formed above the bottom edges of the middle lower parts of the front side wall and the rear side wall of the upper connecting piece (105);
fifth pin shaft mounting outer holes (108) are symmetrically formed in the middle lower portions of the front side wall and the rear side wall of the middle connecting piece (106), and cylindrical sensor mounting seats (109) are mounted on the left side wall and the right side wall of the middle connecting piece (106); a pin shaft type load sensor (11) is arranged in the sensor mounting seat (109);
the bottom centers of the front side wall and the rear side wall of the lower connecting piece (107) are respectively provided with a lower connecting lug plate (111), the middle part of the lower connecting lug plate (111) is provided with a first pin shaft mounting inner hole (112), and the rear ends of the first pin shafts (104) penetrate through the two first pin shaft mounting inner holes (112) and extend out of the outer wall of the outer buffer column (201); a fifth pin shaft installation inner hole (115) is formed above the first pin shaft installation inner hole (112); an upper limiting groove (113) is formed above the middle part of the left side wall and the right side wall of the lower connecting piece (107);
after the upper connecting piece (105), the middle connecting piece (106) and the lower connecting piece (107) are sleeved, the two sensor mounting seats (109) respectively penetrate through the left side wall and the right side wall of the upper connecting piece (105), and the end parts of the inner sides of the sensor mounting seats (109) are positioned in the upper limiting groove (113); two fifth pin shafts (114) respectively penetrate through the fifth pin shaft mounting outer hole (108) and the fifth pin shaft mounting inner hole (115) on the same side, the rear ends of the two fifth pin shafts extend out of the side walls of the middle connecting piece (106) and the lower connecting piece (107), and the outer side ends of the fifth pin shafts (114) are located in the lower limiting groove (103).
5. The folding arm boom tip holder according to claim 4, wherein: ear seats (116) are symmetrically arranged on the outer sides of the two upper connecting ear plates (101), the ear seat (116) on the left side is hinged with a piston rod of the left damping hydraulic cylinder (10), and a cylinder seat of the left damping hydraulic cylinder (10) is arranged on the connecting ear plate at the top of the left side wall of the main arm (12); the ear seat (116) on the right side is connected with the piston end of the right damping hydraulic cylinder (9), and the cylinder seat of the right damping hydraulic cylinder (9) is arranged on the right side wall of the main arm (12).
6. The folding arm boom tip holder according to claim 5, wherein: two damping hydraulic cylinder connecting lug plates (117) are welded on two sides of the bottom plate of the lower connecting piece (107), the damping hydraulic cylinder connecting lug plates (117) are connected with the piston ends of the two lower damping hydraulic cylinders (8) respectively, and cylinder seats of the lower damping hydraulic cylinders (8) are installed on the left side wall and the right side wall of the outer buffer column (201) respectively.
7. The folding arm boom tip holder according to claim 6, wherein: and a detection device (7) for detecting whether the pipe is clamped in place is arranged on the outer side of the pipe adaptor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122488818.0U CN216038194U (en) | 2021-10-15 | 2021-10-15 | Tail end clamp holder of folding arm crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122488818.0U CN216038194U (en) | 2021-10-15 | 2021-10-15 | Tail end clamp holder of folding arm crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216038194U true CN216038194U (en) | 2022-03-15 |
Family
ID=80549041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122488818.0U Active CN216038194U (en) | 2021-10-15 | 2021-10-15 | Tail end clamp holder of folding arm crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216038194U (en) |
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2021
- 2021-10-15 CN CN202122488818.0U patent/CN216038194U/en active Active
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