CN114541510B - Bucket tooth structure of split type bucket of excavator and connecting method thereof - Google Patents
Bucket tooth structure of split type bucket of excavator and connecting method thereof Download PDFInfo
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- CN114541510B CN114541510B CN202210205000.XA CN202210205000A CN114541510B CN 114541510 B CN114541510 B CN 114541510B CN 202210205000 A CN202210205000 A CN 202210205000A CN 114541510 B CN114541510 B CN 114541510B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/2816—Mountings therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/2816—Mountings therefor
- E02F9/2825—Mountings therefor using adapters
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- Mining & Mineral Resources (AREA)
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Abstract
The invention discloses a bucket tooth structure of a split type bucket of an excavator and a connecting method thereof, wherein the bucket tooth structure comprises a tooth back part and a tooth tip, and the tooth back part is detachably connected with the tooth tip; the lower end surface behind the teeth is provided with a downward connecting rod, and the side surface of the connecting rod is provided with an ascending spiral groove; the upper end face of the tooth tip is provided with a counter bore corresponding to the connecting rod, and the side wall of the counter bore is provided with a spiral bulge corresponding to the ascending spiral groove; the spiral bulge is positioned in the middle of the counter bore, and the number of spiral turns is not more than one turn; the cross section shape of the ascending spiral groove and the cross section shape of the spiral protrusion are both semicircular, and the radius of the cross section of the ascending spiral groove is larger than that of the cross section of the spiral protrusion; the side wall of the upper part of the counter bore is an upper conical surface with a large upper part and a small lower part, the side wall of the lower part of the counter bore is a lower conical surface with a large upper part and a large lower part, and the spiral bulge is positioned between the upper conical surface and the lower conical surface. The invention improves the protection of bucket teeth, reduces the possibility of breakage of a single tooth tip and prolongs the service life of the bucket.
Description
Technical Field
The invention relates to the technical field of excavators, in particular to a bucket tooth structure of a split type bucket of an excavator and a connecting method thereof.
Background
The bucket is one of the important parts of an excavator and is also one of the most easily worn accessories. The bucket includes digging teeth (also known as teeth) and a digging tooth holder. The digging teeth of the bucket are preferentially contacted with objects such as soil, stones and the like in the construction process, the bucket teeth are easy to wear, and the service life of the bucket is prolonged by replacing the bucket teeth. The bucket tooth comprises a tooth back part and a tooth tip, wherein the tooth tip is worn most seriously, in order to further prolong the service life of the bucket, the patent with the publication number of CN105714075B discloses a split bucket tooth for the excavator bucket, the tooth back part and the tooth tip are designed into a split structure, and when the tooth tip is worn, the tooth tip is replaced to prolong the service life of the bucket tooth.
However, although the above patents still have disadvantages:
1. because the construction environment is complicated, although the excavator is provided with the detection device for detecting the stress condition of the excavator bucket, the detection device cannot detect the stress condition of each bucket tooth and each tooth tip. During construction, the stress of a single bucket tooth is too large, and the stress of the bucket does not reach the upper limit, so that the single bucket tooth is broken or the tooth tip is broken.
2. In the patent, the rear part of the tooth is rigidly connected with the tooth tip, and a buffer mechanism is not arranged. The phenomenon of hard-to-hard is caused when the large moment of the bucket touches a hard object, and the bucket teeth are easy to break instantly. In addition, the mass of the tooth back and the tooth tip is large, so that the tooth tip is not safe to disassemble and assemble by manpower, and time and labor are wasted, so that the difficulty in disassembling and assembling the tooth tip in the actual using process is not effectively solved.
Disclosure of Invention
Aiming at the defects in the prior art, the protection of bucket teeth is improved, the possibility of breakage of a single tooth tip is reduced, and the service life of the bucket is prolonged. The invention provides a bucket tooth structure of a split type bucket of an excavator, which comprises a tooth back part and a tooth tip, wherein the tooth back part is detachably connected with the tooth tip; the lower end surface behind the teeth is provided with a downward connecting rod, and the side surface of the connecting rod is provided with an ascending spiral groove;
the upper end face of the tooth tip is provided with a counter bore corresponding to the connecting rod, and the side wall of the counter bore is provided with a spiral bulge corresponding to the ascending spiral groove; the spiral bulge is positioned in the middle of the counter bore, and the number of spiral turns is not more than one turn; the cross section shape of the ascending spiral groove and the cross section shape of the spiral protrusion are both semicircular, and the radius of the cross section of the ascending spiral groove is larger than that of the cross section of the spiral protrusion; the side wall of the upper part of the counter bore is an upper conical surface with a large upper part and a small lower part, the side wall of the lower part of the counter bore is a lower conical surface with a small upper part and a large lower part, the spiral bulge is positioned between the upper conical surface and the lower conical surface and is screwed into the rising spiral groove through the spiral bulge, so that the back of the tooth is connected with the tooth tip, and the swinging angle of the lower end of the tooth tip towards any direction in the horizontal plane is not more than 5 degrees;
comprises an upper cushion pad positioned between an upper conical surface and a connecting rod, and a lower cushion pad positioned between a lower conical surface and the connecting rod; the lower end of the lower cushion pad extends to the position between the lower end of the connecting rod and the bottom wall of the blind hole, and then the cross section of the lower cushion pad is shaped like a U.
The beneficial effects of this equipment are embodied in: after being connected with the prong behind the tooth, the spiral protrusion is in ascending spiral groove, because ascending spiral groove radius is greater than spiral protrusion's radius, and the spiral number of turns is not more than the round for the prong can be towards arbitrary swing of reassuring in the horizontal plane, has a swing range behind the prong promptly for the tooth and is less than 5 activity space. But in order to have certain rigidity in the connection of prong, fill in the activity space through upper buffer and lower buffer for the prong under not receiving very big moment the condition, the prong does not take place to swing, does not have the difference with conventional prong. However, the tooth tip is stressed too much, and the tooth tip forcibly presses the upper buffer pad and the lower buffer pad to swing, so that the tooth tip can avoid direct collision with a hard object as far as possible through swinging. If can't avoid, then the tooth point will collide produced impact force transmission to last blotter and lower blotter, absorbed by last blotter and lower blotter to avoid the tooth point to bear the fracture that the impact force caused completely, greatly reduced the damage degree that the tooth point received, improved the protection to the bucket tooth, the life's of extension bucket effect.
Preferably, an intermediate cushion pad is arranged between the lower section behind the teeth and the upper end face of the tooth tip. The middle buffer cushion and the part of the lower buffer cushion between the lower end of the connecting rod and the bottom wall of the blind hole absorb the impact force generated by the frontal collision of the tooth tips.
Preferably, the upper end of the upper cushion pad abuts against the lower surface of the middle cushion pad. When the upper cushion pad is extruded by the tooth tips, the upper cushion pad can generate upward moving friction, and the middle cushion pad abuts against the upper cushion pad, so that the displacement generated by the friction is overcome.
Preferably, a horizontal first stud is arranged on the side wall behind the tooth, a horizontal second stud is arranged on the side wall of the tooth tip, and the first stud and the second stud are located on a vertical straight line.
Preferably, a limiting plate is included for limiting the relative rotation of the tooth tip and the tooth back; the upper part of the limiting plate is sleeved on the first stud, and the limiting plate is provided with a movable hole corresponding to the first stud; the lower part of the limiting plate is sleeved on the second stud, and the limiting plate is provided with another movable hole corresponding to the second stud. The limiting plate is sleeved on the first stud and the second stud, so that the rear part of the tooth and the tooth tip cannot rotate, and the tooth tip is prevented from falling off. In addition, the movable hole is arranged, so that the swinging of the tooth top is not influenced.
Preferably, the device comprises a rotating base for driving the tooth tip to rotate;
the rotating base comprises a base, a rotating disc and a bearing cylinder; the bearing cylinder is provided with an upward opening which is matched with the lower end of the tooth tip;
the base is provided with an installation cavity with an opening at the upper end, and the bearing cylinder is rotatably connected to the bottom wall of the installation cavity through a turntable; and a driving assembly for driving the bearing cylinder to rotate on the turntable is arranged in the mounting cavity.
Preferably, the driving assembly comprises a motor, a reduction gear set and a gear ring sleeved on the bearing cylinder; the motor is fixed with the base, and the output shaft of the motor is in transmission connection with the gear ring through a reduction gear set, and the bearing cylinder is driven to rotate through the motor. The rotary base is used for dismounting the tooth tips, and a special tool is adopted for dismounting, so that the rotary base is safer and more efficient.
Preferably, the front, the back, the left and the right of the upper part of the connecting rod are respectively provided with a first pressure sensor, and all the first pressure sensors are pressed between the connecting rod and the upper cushion pad; the front, the back, the left and the right of the lower part of the connecting rod are respectively provided with a second pressure sensor, all the second pressure sensors are pressed between the connecting rod and the lower cushion pad, and the lower end of the connecting rod is provided with a third pressure sensor. The four first pressure sensors and the four second pressure sensors detect the circumferential composite force magnitude received by the tooth tips in real time, the third pressure sensor detects the positive pressure magnitude received by the tooth tips in real time, the circumferential composite force and the positive pressure magnitude are processed by the processor and converted into the deflection amplitude of the tooth tips and fed back to the control console of the excavator, the deflection amplitude and the deflection force magnitude are displayed in front of eyes of an operator through the display, the real-time condition of each tooth tip can be visually seen, the operator is assisted to judge the specific condition of the current bucket tooth, and the possibility of accidental breakage of the tooth tips is reduced.
Preferably, all the wires of the first pressure sensor, all the wires of the second pressure sensor and all the wires of the third pressure sensor pass from the inside of the connecting rod into the inner cavity behind the teeth.
The invention also provides a method for connecting the tooth back part and the tooth tip, which is applied to the bucket tooth structure of the split type excavator bucket of the excavator and comprises the following steps:
s1: the tooth tip is vertically placed in the bearing cylinder, and a connecting rod behind the tooth is inserted into the counter bore through an excavator after the tooth so that the upper end of the spiral protrusion is in contact with the lower end of the ascending spiral groove;
s2: the motor drives the bearing cylinder and the tooth tip to rotate through the reduction gear set, and the excavator enables the descending speed of the tooth to be the same as the ascending speed of the tooth tip while the tooth tip rotates until the spiral protrusion is screwed into the tail end of the ascending spiral groove;
s3: the limiting plate is sleeved on the first stud and the second stud, anti-loosening nuts are screwed on the first stud and the second stud respectively, and the connection between the tooth heads and the tooth backs is completed.
The method has the beneficial effects that: the method uses the turntable to bear the total weight of the tooth tip to replace manual lifting. The motor drives the tooth point and rotates, replaces manual torsion, and whole connection process manpower output is few, and the connection process is fast, easy operation, labour saving and time saving.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic view of the connection between the rear part and the tip of the tooth in this embodiment;
FIG. 2 is a schematic view of the tooth structure of the present embodiment;
FIG. 3 is a schematic structural view of the tooth tip in this embodiment;
FIG. 4 is a top view of FIG. 3;
fig. 5 is a schematic structural diagram of the rear part, the tooth tip and the rotating base of the tooth in the embodiment.
In the attached drawing, the tooth back 1, the tooth tip 2, the middle cushion pad 3, the connecting rod 4, the ascending spiral groove 5, the counter bore 6, the spiral protrusion 7, the upper conical surface 8, the lower conical surface 9, the upper cushion pad 10, the lower cushion pad 11, the first stud 12, the second stud 13, the limiting plate 14, the movable hole 15, the machine base 16, the rotary table 17, the bearing cylinder 18, the motor 19, the reduction gear set 20, the gear ring 21, the first pressure sensor 22, the second pressure sensor 23, the third pressure sensor 24 and the lead 25.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a tooth structure of a split type excavator bucket of an excavator, which includes a tooth back 1 and a tooth tip 2, and the tooth back 1 is detachably connected with the tooth tip 2. Specifically, the lower end of the tooth back 1 and the upper end of the tooth tip 2 can be in butt joint or can be detached. And an intermediate cushion pad 3 is arranged between the lower section of the rear part 1 of the outer teeth and the upper end surface of the tooth tip 2.
As shown in fig. 2, 3 and 4, the lower end surface of the tooth back 1 is provided with a downward connecting rod 4, and the side surface of the connecting rod 4 is provided with an ascending spiral groove 5. The upper end face of the tooth point 2 is provided with a counter bore 6 corresponding to the connecting rod 4, and the side wall of the counter bore 6 is provided with a spiral bulge 7 corresponding to the ascending spiral groove 5. Wherein the spiral bulge 7 is positioned in the middle of the counter bore 6 and the number of spiral turns is less than one. The cross section of the ascending spiral groove 5 and the cross section of the spiral protrusion 7 are both semicircular, and the cross section radius of the ascending spiral groove 5 is larger than that of the spiral protrusion 7. The shape of the upper side wall of the counter bore 6 is an upper conical surface 8 with a large upper part and a small lower part, and the shape of the lower side wall of the counter bore 6 is a lower conical surface 9 with a small upper part and a large lower part, namely the shape of the upper side wall of the counter bore 6 is an inverted 'eight' shape, and the shape of the lower side wall of the counter bore 6 is an upright 'eight' shape. The spiral protrusion 7 is located between the upper conical surface 8 and the lower conical surface 9, and is screwed into the ascending spiral groove 5 through the spiral protrusion 7, so that the tooth back 1 is connected with the tooth tip 2, and the lower end of the tooth tip 2 swings in any direction in a horizontal plane by an angle not greater than 5 degrees, namely the tooth tip 2 has a moving space with a swinging amplitude smaller than 5 degrees relative to the tooth back 1.
As shown in fig. 3, the present embodiment further includes an upper cushion pad 10 located between the upper conical surface 8 and the connecting rod 4, and a lower cushion pad 11 located between the lower conical surface 9 and the connecting rod 4; the lower end of the lower cushion pad 11 extends to a position between the lower end of the connecting rod 4 and the bottom wall of the blind hole, so that the cross section of the lower cushion pad 11 is U-shaped. Wherein the upper end of the upper cushion 10 abuts against the lower surface of the middle cushion 3. In the present embodiment, the spiral protrusion 7 is screwed into the rising spiral groove 5 to bear most of the tensile stress, the circumferential composite force, etc., and then the upper cushion 10, the lower cushion 11 and the middle cushion 3 are used to fill up the gap and the moving space at the joint. When the tooth point 2 presses the upper cushion pad 10, the upper cushion pad 10 generates upward friction, and the middle cushion pad 3 abuts against the upper cushion pad 10, so that the displacement generated by the friction is overcome. If the tooth point 2 is excessively stressed, the tooth point 2 forcibly presses the upper cushion pad 10 and the lower cushion pad 11 to swing, by which direct collision with a hard object is avoided as much as possible. If unable avoiding, then prong 2 transmits the produced impact force of collision to last blotter 10 and lower blotter 11, is absorbed by last blotter 10 and lower blotter 11 to avoid prong 2 to bear the fracture that the impact force led to the fact completely, greatly reduced the damage degree that prong 2 received, improved the protection to the bucket tooth, extension bucket's life's effect.
As shown in fig. 3 and 4, in order to prevent the tooth back 1 and the tooth tip 2 from being twisted and dislocated after the connection is completed, in this embodiment, a horizontal first stud 12 is disposed on a side wall of the tooth back 1, a horizontal second stud 13 is disposed on a side wall of the tooth tip 2, and the first stud 12 and the second stud 13 are located on a vertical straight line. Further, a limit plate 14 for limiting the relative rotation of the tooth back 1 and the tooth tip 2 is also included. The upper part of the limit plate 14 is sleeved on the first stud 12, and the limit plate 14 is provided with a movable hole 15 corresponding to the first stud 12; the lower portion of the limiting plate 14 is sleeved on the second stud 13, and the limiting plate 14 is provided with another movable hole 15 corresponding to the second stud 13. The limiting plate 14 is sleeved on the first stud 12 and the second stud 13, so that the tooth back 1 and the tooth tip 2 cannot rotate, and the tooth tip 2 is prevented from falling off. In addition, the swing of the tooth point 2 is not affected due to the movable hole 15.
As shown in fig. 5, in order to facilitate the detachment and installation of the tooth tip 2, the present embodiment further includes a rotating base for driving the tooth tip 2 to rotate; the rotating base comprises a base 16, a rotating disc 17 and a bearing cylinder 18; the bearing cylinder 18 is provided with an upward opening which is matched with the lower end of the tooth tip 2; the base is provided with an installation cavity with an opening at the upper end, and the bearing cylinder 18 is rotationally connected to the bottom wall of the installation cavity through a turntable 17; and a driving component for driving the bearing cylinder 18 to rotate on the turntable 17 is arranged in the mounting cavity. Further, the driving component comprises a motor 19, a reduction gear set 20 and a gear ring 21 sleeved on the bearing cylinder 18; the motor 19 is fixed with the base 16, an output shaft of the motor 19 is in transmission connection with the gear ring 21 through a reduction gear set 20, and the bearing cylinder 18 is driven to rotate through the motor 19. The rotary base is used for dismounting the tooth point 2, and a special tool is adopted for dismounting, so that the rotary base is safer and more efficient. In addition, the front, rear, left and right of the upper part of the connecting rod 4 are respectively provided with a first pressure sensor 22, and all the first pressure sensors 22 are pressed between the connecting rod 4 and the upper cushion pad 10. The front, the back, the left and the right of the lower part of the connecting rod 4 are respectively provided with a second pressure sensor 23, all the second pressure sensors 23 are pressed between the connecting rod 4 and the lower cushion pad 11, and the lower end of the connecting rod 4 is provided with a third pressure sensor 24. Wherein all the lead wires 25 of the first pressure sensor 22, all the lead wires 25 of the second pressure sensor 23 and the lead wires 25 of the third pressure sensor 24 penetrate into the inner cavity of the tooth back 1 from the inside of the connecting rod 4. The four first pressure sensors 22 and the four second pressure sensors 23 detect the circumferential composite force magnitude received by the tooth tip 2 in real time, the third pressure sensor 24 detects the positive pressure magnitude received by the tooth tip 2 in real time, the circumferential composite force and the positive pressure magnitude are processed by the processor and converted into the deflection amplitude of the tooth tip 2 and fed back to a control console of the excavator, the deflection amplitude and the deflection force magnitude are displayed in front of eyes of an operator through a display, the real-time condition of each tooth tip 2 can be visually seen, the operator is assisted to judge the specific condition of the current bucket tooth, and the possibility of accidental breakage of the tooth tip 2 is reduced.
Example two:
the embodiment provides a method for connecting a tooth back part and a tooth tip, which is applied to a bucket tooth structure of a split type excavator bucket of the first embodiment and comprises the following steps:
s1: the tooth point is vertically placed in the bearing cylinder, and the connecting rod behind the tooth is inserted into the counter bore through the excavator behind the tooth so that the upper end of the spiral protrusion is in contact with the lower end of the ascending spiral groove. S2: the motor drives the bearing cylinder and the tooth tip to rotate through the reduction gear set, and the excavator enables the descending speed behind the tooth to be the same as the ascending speed of the tooth tip while the tooth tip rotates until the spiral protrusion is screwed into the tail end of the ascending spiral groove. S3: the limiting plate is sleeved on the first stud and the second stud, anti-loosening nuts are screwed on the first stud and the second stud respectively, and the connection between the tooth heads and the tooth backs is completed. The method uses the turntable to bear the total weight of the tooth tip to replace manual lifting. The motor drives the tooth point and rotates, replaces manual torsion, and whole connection process manpower output is few, and the connection process is fast, easy operation, labour saving and time saving.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (7)
1. A bucket tooth structure of a split type bucket of an excavator; comprises a tooth back and a tooth tip, and the tooth back and the tooth tip can be detachably connected; the method is characterized in that: the lower end surface behind the teeth is provided with a downward connecting rod, and the side surface of the connecting rod is provided with an ascending spiral groove;
the upper end face of the tooth tip is provided with a counter bore corresponding to the connecting rod, and the side wall of the counter bore is provided with a spiral bulge corresponding to the ascending spiral groove; the spiral bulge is positioned in the middle of the counter bore, and the number of spiral turns is not more than one turn; the cross section shape of the ascending spiral groove and the cross section shape of the spiral protrusion are both semicircular, and the radius of the cross section of the ascending spiral groove is larger than that of the cross section of the spiral protrusion; the side wall of the upper part of the counter bore is an upper conical surface with a large upper part and a small lower conical surface, the side wall of the lower part of the counter bore is a lower conical surface with a small upper part and a large lower part, the spiral bulge is positioned between the upper conical surface and the lower conical surface and is screwed into the ascending spiral groove through the spiral bulge, so that the tooth is connected with the tooth tip after the tooth, and the swinging angle of the lower end of the tooth tip towards any direction in the horizontal plane is not more than 5 degrees;
comprises an upper cushion pad positioned between an upper conical surface and a connecting rod, and a lower cushion pad positioned between a lower conical surface and the connecting rod; the lower end of the lower cushion pad extends to a position between the lower end of the connecting rod and the bottom wall of the blind hole, so that the cross section of the lower cushion pad is U-shaped;
a horizontal first stud is arranged on the side wall behind the tooth, a horizontal second stud is arranged on the side wall of the tooth tip, and the first stud and the second stud are positioned on a vertical straight line; the tooth-tip rotating mechanism comprises a limiting plate used for limiting relative rotation of the tooth tip and the tooth back; the upper part of the limiting plate is sleeved with the first stud, and the limiting plate is provided with a movable hole corresponding to the first stud; the lower part of the limiting plate is sleeved on the second stud, and the limiting plate is provided with another movable hole corresponding to the second stud; comprises a rotating base for driving a tooth point to rotate; the rotating base comprises a base, a rotating disc and a bearing cylinder; the bearing cylinder is provided with an upward opening which is matched with the lower end of the tooth tip; the base is provided with an installation cavity with an opening at the upper end, and the bearing cylinder is rotatably connected to the bottom wall of the installation cavity through a turntable; and a driving assembly for driving the bearing cylinder to rotate on the turntable is arranged in the mounting cavity.
2. The tooth structure of the split-type excavator bucket of the excavator according to claim 1, wherein: and an intermediate cushion pad is arranged between the lower section behind the teeth and the upper end surface of the tooth tip.
3. The tooth structure of the split-type excavator bucket of the excavator according to claim 2, wherein: the upper end of the upper cushion pad is tightly propped against the lower surface of the middle cushion pad.
4. The tooth structure of the split-type excavator bucket of the excavator according to claim 1, wherein: the driving component comprises a motor, a reduction gear set and a gear ring sleeved on the bearing cylinder; the motor is fixed with the base, an output shaft of the motor is in transmission connection with the gear ring through a reduction gear set, and the bearing cylinder is driven to rotate through the motor.
5. The tooth structure of the split excavator bucket of the excavator according to claim 4, wherein: the front, the back, the left and the right of the upper part of the connecting rod are respectively provided with a first pressure sensor, and all the first pressure sensors are tightly pressed between the connecting rod and the upper cushion pad; the front, the back, the left and the right of the lower part of the connecting rod are respectively provided with a second pressure sensor, and all the second pressure sensors are pressed between the connecting rod and the lower cushion pad; and a third pressure sensor is arranged at the lower end of the connecting rod.
6. The tooth structure of the split excavator bucket of the excavator as claimed in claim 5, wherein: all the leads of the first pressure sensor, all the leads of the second pressure sensor and all the leads of the third pressure sensor penetrate into the inner cavity behind the teeth from the inside of the connecting rod.
7. A method for connecting the tooth back and the tooth tip is characterized in that: the tooth structure applied to the split type excavator bucket of the excavator of claim 5, comprising the following steps of:
s1: the tooth tip is vertically placed in the bearing cylinder, and a connecting rod behind the tooth is inserted into the counter bore through an excavator after the tooth so that the upper end of the spiral protrusion is in contact with the lower end of the ascending spiral groove;
s2: the motor drives the bearing cylinder and the tooth tip to rotate through the reduction gear set, and the excavator enables the descending speed of the tooth to be the same as the ascending speed of the tooth tip while the tooth tip rotates until the spiral protrusion is screwed into the tail end of the ascending spiral groove;
s3: the limiting plate is sleeved on the first stud and the second stud, the anti-loosening nuts are respectively screwed on the first stud and the second stud, and the tooth back and the tooth tip are connected to complete the process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210205000.XA CN114541510B (en) | 2022-03-02 | 2022-03-02 | Bucket tooth structure of split type bucket of excavator and connecting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210205000.XA CN114541510B (en) | 2022-03-02 | 2022-03-02 | Bucket tooth structure of split type bucket of excavator and connecting method thereof |
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| Publication Number | Publication Date |
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| CN114541510A CN114541510A (en) | 2022-05-27 |
| CN114541510B true CN114541510B (en) | 2023-03-21 |
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| CN115201470B (en) * | 2022-09-15 | 2022-12-13 | 山东博科诊断科技有限公司 | Antigen detection reagent card with more stable connectivity |
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| US20080005940A1 (en) * | 2006-07-10 | 2008-01-10 | Esco Corporation | Assembly for securing a wear |
| US10385548B2 (en) * | 2009-12-11 | 2019-08-20 | Cqms Pty Ltd | Lock assembly for an excavator wear member |
| US10106960B2 (en) * | 2015-11-25 | 2018-10-23 | Caterpillar Inc. | Lock assembly for ground engaging tool |
| EP3205781A1 (en) * | 2016-02-12 | 2017-08-16 | Metalogenia Research & Technologies S.L. | Female part, retaining device and pin system for excavators and the like |
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| CN207032362U (en) * | 2017-08-14 | 2018-02-23 | 安徽富林农业机械装备有限公司 | A kind of bucket tooth of excavator |
| CN212052960U (en) * | 2020-01-10 | 2020-12-01 | 宿迁市宝利精密机械制造有限公司 | Novel buffer type excavator toothholder and bucket tooth combination device |
| CN213233614U (en) * | 2020-08-18 | 2021-05-18 | 长兴德田工程机械股份有限公司 | Excavator bucket tooth easy to assemble and disassemble |
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2022
- 2022-03-02 CN CN202210205000.XA patent/CN114541510B/en active Active
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