Excavator bucket tooth with protective structure
By setting protective components on the outside of the excavator bucket teeth sleeve, using rubber strips and rubber plates to fill the gaps and transmitting the squeeze pressure through the spring, the friction increase caused by the sealing ring is solved, and the stable installation of the bucket teeth sleeve is achieved and disengage, extending service life and avoiding bolt damage.
Patent Information
- Application Number
- CN202420084868.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-15
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-01-15
AI Technical Summary
During the use of existing excavator bucket teeth, due to the increase in friction caused by the sealing ring, the bucket teeth sleeve is difficult to disengage, which increases wear and tear on the bucket teeth, and interference fit requires greater force to be knocked to separate. , affects service life.
An excavator bucket teeth with a protective structure were designed. By setting grooves, screw holes, bolts, moving plates, springs and fixing plates on the outside of the bucket teeth sleeve, the rubber strips and rubber plates are driven to move and fill the gaps. It also avoids hard contact, uses spring to transmit the extrusion pressure to make the filling tighter, and realizes deformation and recovery of the rubber plate through honeycomb holes to avoid breaking away from obstacles.
It effectively avoids wear between the bucket teeth sleeve and the bucket teeth main body, simplifies the installation and disengagement process, reduces wear on the bucket teeth, extends the service life, and avoids exposed and damaged bolts through the storage groove.
Smart Images
Figure CN222275633U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of excavator accessories, in particular to an excavator bucket tooth with a protective structure. Background Art
[0002] Excavator bucket teeth are important consumable parts on the excavator. Similar to human teeth, they are composed of a bucket tooth body and a bucket tooth sleeve. Generally, bucket teeth are made by opening pin holes on both sides of the bucket tooth body. When the bucket tooth sleeve is connected to the bucket, the bucket tooth sleeve is connected to the bucket through the pin shaft, which is convenient for excavating hard objects, thereby making its work smooth.
[0003] According to a disclosed excavator bucket tooth protection device (publication number: CN218060523U), in the above application, the bucket teeth of the excavator are nested inside through the bucket tooth sleeve and sealed with a sealing rubber ring, which has a better protection effect. At the same time, the sliding sleeve can be used to adjust the spacing of each bucket tooth sleeve, so that it can adapt to more types of buckets and improve the applicability of the structure. The interference fit between the plastic block and the bucket tooth can improve the firmness of the nesting.
[0004] However, in actual use of the above-mentioned equipment, filling the gap between the bucket tooth sleeve and the bucket tooth with a sealing rubber ring will increase the friction on the bucket tooth. When the bucket tooth sleeve is disengaged, it is necessary not only to overcome the friction between the bucket tooth and the bucket tooth sleeve due to the interference fit, but also to overcome the friction of the sealing rubber ring on the bucket tooth, which further increases the difficulty of disengaging the bucket tooth sleeve and requires a greater force to knock the bucket tooth sleeve for separation, thereby increasing the wear on the bucket tooth. In view of this, we propose an excavator bucket tooth with a protective structure. Utility Model Content
[0005] The utility model aims to provide an excavator bucket tooth with a protective structure to solve the problems raised in the above background technology.
[0006] To achieve the above object, the utility model provides the following technical solution: an excavator bucket tooth with a protective structure, comprising a bucket tooth body, a bucket tooth sleeve is sleeved on the outer side of the bucket tooth body, a guide groove is opened on the upper surface of the bucket tooth sleeve, and a protective component is arranged inside the bucket tooth sleeve, and the protective component comprises:
[0007] A groove, wherein the groove is formed on the inner bottom surface of the bucket tooth sleeve, a screw hole is formed on the inner bottom surface of the groove, a bolt is connected to the inner thread of the screw hole, and the bolt can rotate inside the screw hole;
[0008] A movable plate, wherein the movable plate is rotatably connected to the top of the bolt, and when the bolt performs linear motion in the up-and-down direction, the movable plate can be driven to move synchronously, and a limit column is fixedly installed on the upper surface of the movable plate, and when the movable plate moves, the limit column can be driven to move synchronously, and a spring is fixedly installed on the upper surface of the movable plate;
[0009] A fixed plate, wherein the fixed plate is fixedly mounted on the upper end of the spring, a rubber strip is fixedly mounted on the outer ring of the upper surface of the fixed plate, a rubber plate is fixedly mounted at the center of the upper surface of the fixed plate, and honeycomb holes are opened on the upper surface of the rubber plate. When the fixed plate moves, the rubber strip and the rubber plate can be driven to move synchronously.
[0010] Preferably, the outer walls of the movable plate and the fixed plate are in contact with the inner walls of the groove and are located inside the groove. The groove can limit the movement of the movable plate and the fixed plate so that the movable plate and the fixed plate can only perform linear motion in the up and down directions.
[0011] Preferably, the rubber strip and the rubber plate are at the same height.
[0012] Preferably, the upper surfaces of the rubber strip and the rubber plate are in contact with the bottom surface of the bucket tooth body.
[0013] Preferably, a receiving groove is provided on the bottom surface of the bucket tooth sleeve.
[0014] Preferably, the bottom surface of the bolt is located inside the receiving groove, and the bottom end of the bolt can enter the receiving groove for storage.
[0015] Compared with the prior art, the utility model provides an excavator bucket tooth with a protective structure, which has the following beneficial effects:
[0016] 1. The excavator bucket tooth with a protective structure drives the rubber strip and the rubber plate to move when the bucket tooth sleeve is installed on the outside of the bucket tooth body through the cooperation of the provided grooves, screw holes, bolts, movable plates, springs and fixed plates, so as to avoid the wear caused by hard contact with the bucket tooth body and fill the gap between the bucket tooth sleeve and the bucket tooth body to prevent the bucket tooth sleeve from shaking during work, thereby preventing the wear between the bucket tooth body and the bucket tooth body and affecting the service life. There is no need to use interference fit to cause the need to knock and install to cause wear. When the bucket tooth sleeve needs to be disengaged, the rubber strip and the rubber plate can be reset to the inside of the groove for storage, thereby avoiding obstruction to the disengagement of the bucket tooth sleeve. Through the cooperation of the provided spring, the extrusion force is transmitted to the rubber strip and the rubber plate during the filling process, so that the filling is more compact. Through the provided honeycomb holes, the rubber plate can be deformed inside the honeycomb holes when deformation occurs, thereby avoiding the inability to recover after deformation due to the simple provision of the rubber plate, and then being unable to enter the groove for storage, thereby obstructing the disengagement of the bucket tooth sleeve.
[0017] 2. The bucket tooth of the excavator with a protective structure can store the bottom end of the bolt through a storage groove to avoid being exposed to the outside and causing damage, resulting in unusability, thereby affecting the use of the protective component. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the internal structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the structure of the utility model at A;
[0020] Figure 3 This is a schematic diagram of the structure of the rubber sheet and rubber strip of the utility model;
[0021] Figure 4 It is a schematic diagram of the overall structure of the utility model.
[0022] In the figure: 1. bucket tooth body; 2. bucket tooth sleeve; 3. guide groove; 401. groove; 402. screw hole; 403. bolt; 404. movable plate; 405. limit column; 406. spring; 407. fixed plate; 408. rubber strip; 409. rubber plate; 410. honeycomb hole; 5. storage groove. DETAILED DESCRIPTION
[0023] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: an excavator bucket tooth with a protective structure, comprising a bucket tooth body 1, a bucket tooth sleeve 2 is sleeved on the outer side of the bucket tooth body 1, and the bucket tooth sleeve 2, as a consumable, can protect the outer side of the bucket tooth body 1, replacing the bucket tooth body 1 to contact and dig with the excavation object, a guide groove 3 is opened on the upper surface of the bucket tooth sleeve 2, and a protective component is arranged inside the bucket tooth sleeve 2.
[0024] The protection component includes: a groove 401, a movable plate 404 and a fixed plate 407. The groove 401 is opened on the inner bottom surface of the bucket tooth sleeve 2. The inner bottom surface of the groove 401 is provided with a screw hole 402. The inner thread of the screw hole 402 is connected with a bolt 403. When the bolt 403 rotates, it can perform linear motion in the up and down directions under the limitation of the screw hole 402. The movable plate 404 is rotatably connected to the top of the bolt 403. The movable plate 404 can only perform linear motion in the up and down directions due to the limitation inside the groove 401. When the bolt 403 rotates, it can drive the movable plate 404 to perform linear motion in the up and down directions synchronously.
[0025] A limit column 405 is fixedly installed on the upper surface of the movable plate 404, and a spring 406 is fixedly installed on the upper surface of the movable plate 404. The limit column 405 can limit the compression length of the spring 406 to prevent the spring 406 from being compressed beyond its own limit and unable to rebound, affecting the use of the spring 406. The fixed plate 407 is fixedly installed on the upper end of the spring 406. When the movable plate 404 moves, the spring 406 can cooperate to drive the fixed plate 407 to synchronously perform linear motion in the up and down directions. The outer walls of the movable plate 404 and the fixed plate 407 are in contact with the inner wall of the groove 401 and are both located inside the groove 401.
[0026] The outer ring of the upper surface of the fixed plate 407 is fixedly installed with a rubber strip 408. The number of the rubber strips 408 is several. The several rubber strips 408 are fixedly installed on the upper surface of the fixed plate 407 around the outer ring edge of the fixed plate 407 as a path. There is a gap between the gaps of every two rubber strips 408. A rubber plate 409 is fixedly installed at the center of the upper surface of the fixed plate 407. When the fixed plate 407 moves, the rubber strips 408 and the rubber plate 409 can be driven to move synchronously. When the fixed plate 407 drives When the rubber strip 408 and the rubber plate 409 move upward to fit the bottom surface of the bucket tooth body 1, the gap between the bucket tooth body 1 and the bucket tooth sleeve 2 will be filled, so that the bucket tooth body 1 and the bucket tooth sleeve 2 will not shake and cause wear during operation without the need for interference fit. The rubber strip 408 and the rubber plate 409 are at the same height, and there is a gap of five millimeters between the rubber strip 408 and the rubber plate 409. The upper surfaces of the rubber strip 408 and the rubber plate 409 are in contact with the bottom surface of the bucket tooth body 1.
[0027] The upper surface of the rubber plate 409 is provided with honeycomb holes 410. When the bolt 403 rotates, the rubber strip 408 and the rubber plate 409 are driven to move upward to fill the gap between the bucket tooth body 1 and the bucket tooth sleeve 2 through the cooperation of the movable plate 404, the spring 406 and the fixed plate 407. The fixed plate 407 squeezes the rubber strip 408 and the rubber plate 409, so that the rubber strip 408 and the rubber plate 409 repeatedly fill the gap between the bucket tooth body 1 and the bucket tooth sleeve 2. At this time, most of the rubber strips 408 are deformed toward the outside of the fixed plate 407 under force. When the bolt 403 rotates to drive the rubber strip 408 and the rubber plate 409 to move toward the inside of the groove 401 for reset to facilitate the detachment of the bucket tooth sleeve 2, the rubber strip 408 and the rubber plate 409 are moved upward to fill the gap between the bucket tooth body 1 and the bucket tooth sleeve 2. Under the action of the inner wall of the groove 401, 408 will recover its deformation toward the center of the fixed plate 407, which will not affect the resetting and separation. At the same time, the rubber plate 409 will be deformed toward the honeycomb hole 410 after being squeezed, so as to prevent the rubber plate 409 from expanding only outward, resulting in the deformation of the rubber strip 408 during the squeezing process, which affects the recovery deformation amount. When the rubber strip 408 and the rubber plate 409 are deformed to fill the gap between the bucket tooth body 1 and the bucket tooth sleeve 2, the spring 406 will be squeezed so that the spring 406 is compressed to generate elastic potential energy. In the process of filling the gap, the elastic potential energy of the spring 406 will generate an extrusion force on the fixed plate 407, so that the rubber strip 408 and the rubber plate 409 fill the gap more tightly.
[0028] The bottom surface of the bucket tooth sleeve 2 is provided with a receiving groove 5, and the bottom surface of the bolt 403 is located inside the receiving groove 5. The bottom surface of the bolt 403 is received inside the receiving groove 5 and will not extend out of the bucket tooth sleeve 2, thereby avoiding collision with stones, minerals, etc. and causing damage.
[0029] In the present invention, when in use, after the bucket tooth sleeve 2 is sleeved on the outside of the bucket tooth body 1 and fixed, the rotatable bolt 403, under the action of the screw hole 402, drives the rubber strip 408 and the rubber plate 409 to move upward through the cooperation of the moving plate 404, the spring 406 and the fixing plate 407 to squeeze and fill the gap between the bucket tooth body 1 and the bucket tooth sleeve 2, so as to avoid the bucket tooth sleeve 2 from shaking during the working process, resulting in wear and tear between the bucket tooth body 1 and affecting the service life. At the same time, when filling the gap, the spring 406 will be squeezed to generate elastic potential energy and The extrusion force is transmitted to the fixed plate 407, so that the rubber strip 408 and the rubber plate 409 fill the gap more tightly. After the rubber plate 409 is squeezed and deformed, it will partially deform toward the inside of the honeycomb hole 410 to avoid excessive squeezing toward the inside, which will affect the deformation reset. The rubber strip 408 can be deformed toward the outside after being squeezed. When resetting, it will be constrained and reset under the action of the inner wall of the groove 401, so as to avoid simply setting the rubber plate 409 to avoid hard contact, which will cause the excessive deformation on the outside to be unable to recover, affecting the reset, and affecting the detachment of the bucket tooth sleeve 2.
[0030] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. An excavator bucket tooth with a protective structure, comprising a bucket tooth body (1), a bucket tooth sleeve (2) is sleeved on the outer side of the bucket tooth body (1), and a guide groove (3) is opened on the upper surface of the bucket tooth sleeve (2), characterized in that: A protection component is arranged inside the bucket tooth sleeve (2), and the protection component comprises: A groove (401), wherein the groove (401) is formed on the inner bottom surface of the bucket tooth sleeve (2), a screw hole (402) is formed on the inner bottom surface of the groove (401), and a bolt (403) is connected to the inner thread of the screw hole (402); A movable plate (404), the movable plate (404) being rotatably connected to the top of the bolt (403), a limiting column (405) being fixedly installed on the upper surface of the movable plate (404), and a spring (406) being fixedly installed on the upper surface of the movable plate (404); A fixed plate (407), wherein the fixed plate (407) is fixedly mounted on the upper end of the spring (406), a rubber strip (408) is fixedly mounted on the outer ring of the upper surface of the fixed plate (407), a rubber plate (409) is fixedly mounted at the center of the upper surface of the fixed plate (407), and a honeycomb hole (410) is opened on the upper surface of the rubber plate (409).
2. The excavator bucket tooth with a protective structure according to claim 1, characterized in that: The outer walls of the movable plate (404) and the fixed plate (407) are both in contact with the inner wall of the groove (401) and are both located inside the groove (401).
3. The excavator bucket tooth with a protective structure according to claim 1, characterized in that: The rubber strip (408) and the rubber plate (409) are at the same height.
4. The excavator bucket tooth with a protective structure according to claim 1, characterized in that: The upper surfaces of the rubber strip (408) and the rubber plate (409) are both in contact with the bottom surface of the bucket tooth body (1).
5. The excavator bucket tooth with a protective structure according to claim 1, characterized in that: The bottom surface of the bucket tooth sleeve (2) is provided with a receiving groove (5).
6. The excavator bucket tooth with a protective structure according to claim 5, characterized in that: The bottom surface of the bolt (403) is located inside the receiving groove (5).