A replaceable excavator tooth

CN118517037BActive Publication Date: 2026-09-22NINGBO JIWEI MELT MOULD CASTINGS CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202410824391.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-25
Publication Date
2026-09-22
Estimated Expiration
2044-06-25

AI Technical Summary

Technical Problem

[0003]目前,铲齿在挖掘和装载作业中受到严重磨损和冲击,长期使用后会出现磨损或者损坏,影响其功能和性能

Benefits of technology

[0016]1、该易于更换的挖掘机铲齿,通过第一卡合组件和第二卡合组件的设置,将铲齿主体对接在槽口处,再将第一卡合组件穿插第一安装槽和第二安装槽,并且相互螺纹连接,再将转动柱螺纹插接在卡合筒的内部,同时推动挤压块上移,同时带动卡合板上移,与第一滑动槽与第二滑动槽卡合,当拆卸时,转动转动柱,弹簧带动伸缩柱同时拉动卡合板归位,实现解锁,实现了确保铲齿在挖掘机上安装时稳固可靠,不易松动或脱落,这对于挖掘机在重型工作环境下的稳定性和安全性至关重要的效果,解决了铲齿在挖掘和装载作业中受到严重磨损和冲击,长期使用后会出现磨损或者损坏,影响其功能和性能。磨损严重的铲齿会降低挖掘效率,增加油耗,并可能导致其他零部件损坏的问题。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118517037B_ABST
    Figure CN118517037B_ABST
Patent Text Reader

Abstract

The present application relates to the technical field of tooth technology, and discloses an excavator tooth easy to replace, which comprises a bucket body and a tooth body, the tooth body is installed on the side of the bucket body, the side of the tooth body is provided with a first installation groove, the side of the bucket body is provided with a second installation groove, the first installation groove and the second installation groove are provided with a first clamping assembly, the first clamping assembly is provided with a second clamping assembly inside, the first clamping assembly and the second clamping assembly are used in cooperation, through the setting of the first clamping assembly and the second clamping assembly, the tooth body is butt-jointed at the notch, then the first clamping assembly is inserted into the first installation groove and the second installation groove and is threadedly connected with each other, then the rotating column is threadedly inserted into the inside of the clamping cylinder, the extruding block is pushed to move up at the same time, the clamping plate is driven to move up at the same time, the first sliding groove and the second sliding groove are clamped, when disassembling, the rotating column is rotated, the spring drives the telescopic column to pull the clamping plate to return to the original position at the same time, and unlocking is realized.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of shovel teeth technology, specifically to an easily replaceable excavator shovel tooth. Background Technology

[0002] Excavator teeth are a critical component of an excavator, located at the front of the bucket and directly in contact with the excavated and loaded materials. Designed to provide optimal digging and loading efficiency while ensuring durability and safety, teeth are typically made of high-strength alloy steel or other special materials to meet the demands of high-intensity operation in harsh environments. Their shape and size vary depending on the excavator model and application requirements. During excavation, teeth are primarily used to cut and loosen soil, rocks, or other materials, making them easier to load into the bucket. Therefore, the design of the teeth must consider the material's cutting and penetrating properties, as well as its impact on the bucket and the overall machine structure. To improve durability, teeth are often heat-treated or subjected to other surface treatments to enhance their hardness and wear resistance. Furthermore, regular inspection and maintenance of the teeth are crucial for ensuring the excavator's long-term efficient operation; damaged or worn teeth need to be replaced promptly to prevent further damage to the bucket or the entire machine.

[0003] Currently, excavator shovel teeth are subjected to severe wear and impact during excavation and loading operations, leading to wear or damage after prolonged use, affecting their function and performance. Severely worn shovel teeth reduce digging efficiency, increase fuel consumption, and may cause damage to other components; therefore, they do not meet current needs. To address this, we propose an easily replaceable excavator shovel tooth. Summary of the Invention

[0004] This invention provides an easily replaceable excavator shovel tooth, addressing the problem mentioned in the background art where shovel teeth suffer severe wear and impact during excavation and loading operations, leading to wear or damage after prolonged use, affecting their function and performance. Severely worn shovel teeth reduce digging efficiency, increase fuel consumption, and may even damage other components.

[0005] The present invention provides the following technical solution: an easily replaceable excavator shovel tooth, comprising a bucket body and a shovel tooth body, wherein the shovel tooth body is installed on the side of the bucket body, a first mounting groove is provided on the side of the shovel tooth body, a second mounting groove is provided on the side of the bucket body, a first engaging component is provided between the first mounting groove and the second mounting groove, and a second engaging component is provided inside the first mounting groove, wherein the first engaging component and the second engaging component are used in cooperation.

[0006] As an alternative solution for easily replaceable excavator shovel teeth according to the present invention, the shovel tooth body includes a clamping plate body and a tooth tip body. The clamping plate body is installed on the side of the tooth tip body. The clamping plate body includes a first clamping plate and a second clamping plate. The first clamping plate is connected to the side of the tooth tip body, and the second clamping plate is connected to the other side of the tooth tip body. The first clamping plate and the second clamping plate are used in conjunction.

[0007] As an alternative solution for easily replaceable excavator shovel teeth according to the present invention, wherein: a slot is provided on the side of the bucket body, the slot is connected to the second mounting slot, and the first clamping plate and the second clamping plate are engaged together on the side of the slot, and the first mounting slot and the second mounting slot are respectively configured as threaded grooves.

[0008] As an alternative solution for easily replaceable excavator shovel teeth according to the present invention, the first engaging assembly includes an engaging cylinder and an engaging disc, the engaging cylinder is slidably engaged between the first mounting groove and the second mounting groove, and the engaging cylinder is disposed inside the first mounting groove and the second mounting groove.

[0009] As an alternative solution for easily replaceable excavator shovel teeth according to the present invention, wherein: the engaging disc is connected to the end of the engaging cylinder and the engaging disc is disposed on the side of the bucket body, the engaging cylinder is configured as a threaded cylinder, the engaging cylinder is threadedly engaged with the first mounting groove and the second mounting groove, the engaging disc is fitted to the side of the bucket body, and a friction pad is connected between the engaging disc and the bucket body.

[0010] As an alternative solution for easily replaceable excavator shovel teeth according to the present invention, wherein: a third mounting groove is provided on the side of the engaging cylinder, and a plurality of third mounting grooves are provided, and a second engaging component is installed in each of the plurality of third mounting grooves, and a protrusion is connected inside the third mounting groove, and two protrusions are provided.

[0011] As an alternative solution for easily replaceable excavator shovel teeth according to the present invention, the second engaging assembly includes an engaging plate and a pressing block. The engaging plate is disposed between two protrusions, and spring grooves are respectively provided on the sides of the two protrusions. A telescopic column is connected between the engaging plate and the spring grooves, and a spring is sleeved on the outside of the telescopic column. The pressing block is configured as an inclined block.

[0012] As an alternative solution for easily replaceable excavator shovel teeth according to the present invention, wherein: a first sliding groove is provided on the side of the first mounting groove, the first mounting groove is connected to the second mounting groove, a second sliding groove is provided on the side of the second mounting groove, the second mounting groove is connected to the second sliding groove, and a plurality of locking plates are provided, the plurality of locking plates being slidably engaged with the first sliding groove and the second sliding groove respectively.

[0013] As an alternative solution for easily replaceable excavator shovel teeth according to the present invention, wherein: a third sliding groove is provided inside the engaging cylinder, the third sliding groove is configured as a threaded groove, a rotating column is provided inside the third sliding groove, the rotating column is configured as a threaded section, the end of the rotating column is configured as a piston end, the rotating column is rotatably configured with the third sliding groove, and the rotating column is intermittently engaged with the extrusion block.

[0014] As an alternative solution for easily replaceable excavator shovel teeth according to the present invention, wherein: a connecting cylinder is connected to the side of the engagement disc, the interior of the connecting cylinder is configured as a threaded cylinder, an operating disc is connected to the end of the rotating column, a short column is connected to the side of the operating disc, the short column is configured as a threaded column, and the short column is threaded with the connecting cylinder.

[0015] The present invention has the following beneficial effects:

[0016] 1. This easily replaceable excavator shovel tooth, through the setting of a first engaging component and a second engaging component, mates the shovel tooth body with the slot. The first engaging component is then inserted into the first and second mounting slots and threaded together. The rotating column is then threaded into the inside of the engaging cylinder, simultaneously pushing the pressing block upwards and causing the engaging plate to move upwards, engaging with the first and second sliding slots. For disassembly, rotating the rotating column causes the spring to drive the telescopic column, simultaneously pulling the engaging plate back into position, thus unlocking the shovel tooth. This ensures the shovel tooth is securely and reliably installed on the excavator, preventing loosening or detachment. This is crucial for the stability and safety of the excavator in heavy-duty working environments. It solves the problem of shovel teeth suffering severe wear and impact during digging and loading operations, leading to wear or damage after long-term use, affecting their function and performance. Severely worn shovel teeth reduce digging efficiency, increase fuel consumption, and may cause damage to other components.

[0017] 2. This easily replaceable excavator blade features a friction pad. The friction pad, along with the second engaging assembly and the first engaging assembly, increases the friction between the engaging disc and the bucket body, making it less prone to loosening. By increasing friction, the friction pad reduces loosening and wobbling between the engaging disc and the bucket body, thus improving operational safety. It reduces the possibility of accidental loosening and lowers the risk of injury to operators and those nearby.

[0018] 3. This easily replaceable excavator blade features a short column and connecting sleeve. The combination of the short column, connecting sleeve, first engaging component, and second engaging component, along with a multi-threaded connection, prevents the control panel from easily loosening during engagement. This multi-threaded connection design simplifies and speeds up installation and disassembly. Operators only need to rotate the threads to connect or disconnect, reducing operational complexity and time consumption, resulting in a better overall solution. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0021] Figure 3 This is an enlarged structural diagram of point A in the present invention.

[0022] Figure 4 This is a schematic diagram of the main structure of the shovel teeth of the present invention.

[0023] Figure 5 This is a schematic diagram of the first engaging component structure of the present invention.

[0024] Figure 6 This is a schematic diagram of a half-section of the first engaging component of the present invention.

[0025] Figure 7 This is a cross-sectional structural diagram of the first engaging component of the present invention.

[0026] Figure 8 This is an enlarged structural diagram of point B in the present invention.

[0027] Figure 9 This is a schematic diagram of the movable sectioning structure at point B of the present invention.

[0028] In the diagram: 110, Bucket body; 111, Groove; 120, Friction pad; 121, Connecting cylinder; 122, Control panel; 123, Short column; 130, First mounting groove; 131, First sliding groove; 140, First engaging assembly; 141, Engaging cylinder; 142, Engaging disc; 143, Third mounting groove; 144, Protrusion; 150, Shovel tooth body; 151, Clamping plate body; 152, First clamping plate; 153, Second clamping plate; 160, Second mounting groove; 161, Second sliding groove; 162, Third sliding groove; 163, Rotating column; 170, Second engaging assembly; 171, Engaging plate; 172, Pressing block; 173, Spring groove; 174, Telescopic column; 175, Spring; 176, Tooth tip body. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1 aims to address the problem of shovel teeth suffering severe wear and impact during digging and loading operations, leading to wear or damage after prolonged use and affecting their function and performance. Severely worn shovel teeth reduce digging efficiency, increase fuel consumption, and may cause damage to other components. Please refer to [link to relevant documentation]. Figure 1-9 An easily replaceable excavator shovel tooth includes a bucket body 110 and a shovel tooth body 150. The shovel tooth body 150 is mounted on the side of the bucket body 110. A first mounting groove 130 is formed on the side of the shovel tooth body 150, and a second mounting groove 160 is formed on the side of the bucket body 110. A first engaging component 140 is provided between the first mounting groove 130 and the second mounting groove 160. A second engaging component 170 is provided inside the first mounting groove 130. The first engaging component 140 and the second engaging component 170 cooperate with each other. The cooperation between the first mounting groove 130 and the second mounting groove 160 and the first engaging component 140, as well as the second engaging component 170 inside the first engaging component 140, provides a strong connection. This design ensures a firm connection between the bucket body 110 and the shovel tooth body 150, and the connection remains stable even under high load and vibration environments, preventing loosening or detachment.

[0031] The shovel tooth body 150 includes a clamping plate 151 and a tooth tip 176. The clamping plate 151 is installed on the side of the tooth tip 176 and includes a first clamping plate 152 and a second clamping plate 153. The first clamping plate 152 is connected to the side of the tooth tip 176, and the second clamping plate 153 is connected to the other side of the tooth tip 176. The first clamping plate 152 and the second clamping plate 153 cooperate with each other. The side of the bucket body 110 has a slot 111, which communicates with a second mounting slot 160. The first clamping plate 152 and the second clamping plate 153 are engaged with the side of the slot 111. The first mounting slot 130 and the second mounting slot 160 are respectively set as threaded slots. The threaded connection provides a more secure connection, making the connection between the shovel tooth body 150 and the bucket body 110 more stable. This helps to reduce loosening caused by vibration or impact during excavator operation and enhances the reliability and durability of the connection.

[0032] The first engaging assembly 140 includes an engaging cylinder 141 and an engaging disc 142. The engaging cylinder 141 is slidably engaged between the first mounting groove 130 and the second mounting groove 160. The engaging cylinder 141 is disposed inside the first mounting groove 130 and the second mounting groove 160. The engaging disc 142 is connected to the end of the engaging cylinder 141 and is disposed on the side of the bucket body 110. The engaging cylinder 141 is configured as a threaded cylinder and is threadedly engaged with the first mounting groove 130 and the second mounting groove 160. The engaging disc 142 is fitted against the side of the bucket body 110, and a friction pad 120 is connected between the engaging disc 142 and the bucket body 110.

[0033] The engaging cylinder 141 has a third mounting groove 143 on its side. Several third mounting grooves 143 are provided, and each of these grooves houses a second engaging component 170. Two protrusions 144 are connected inside each third mounting groove 143. The presence of multiple second engaging components 170 within the third mounting grooves 143 increases the number of connection points, making the connection between the engaging cylinder 141 and other components more secure. Simultaneously, the presence of the protrusions 144 further enhances the stability of the connection, preventing loosening or detachment during excavator operation.

[0034] The second engaging assembly 170 includes an engaging plate 171 and a pressing block 172. The engaging plate 171 is disposed between two protrusions 144. Spring grooves 173 are respectively provided on the sides of the two protrusions 144. A telescopic post 174 is connected between the engaging plate 171 and the spring grooves 173. A spring 175 is sleeved on the outside of the telescopic post 174. The pressing block 172 is configured as an inclined block.

[0035] In this embodiment: The first engaging component 140 and the second engaging component 170 are used to mate the shovel tooth body 150 with the slot 111. The first engaging component 140 is then inserted into the first mounting slot 130 and the second mounting slot 160, and they are threaded together. The rotating column 163 is then threaded into the inside of the engaging cylinder 141, simultaneously pushing the pressing block 172 upwards and causing the engaging plate 171 to move upwards, engaging with the first sliding slot 131 and the second sliding slot 161. When disassembling, rotating the rotating column 163 causes the spring 175 to drive the telescopic column 174, simultaneously pulling the engaging plate 171 back into position, thus unlocking the shovel tooth. This ensures that the shovel tooth is securely and reliably installed on the excavator, preventing loosening or detachment. This is crucial for the stability and safety of the excavator in heavy-duty working environments. It solves the problem that shovel teeth suffer severe wear and impact during digging and loading operations, leading to wear or damage after long-term use, affecting their function and performance. Severely worn shovel teeth reduce digging efficiency, increase fuel consumption, and may cause damage to other components.

[0036] Example 2, this example aims to facilitate the resolution of the problem of accidental loosening. This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 1-9 The first mounting groove 130 has a first sliding groove 131 on its side, and the first mounting groove 130 is connected to the second mounting groove 160. The second mounting groove 160 has a second sliding groove 161 on its side, and the second mounting groove 160 is connected to the second sliding groove 161. Several locking plates 171 are provided, and the several locking plates 171 are respectively slidably locked with the first sliding groove 131 and the second sliding groove 161. The first mounting groove 130, the second mounting groove 160 and the locking plates 171 with the sliding locking design can enhance the flexibility and stability of the connection, reduce stress concentration, simplify the installation and disassembly process, thereby improving the overall performance and service life of the excavator.

[0037] In this embodiment, the friction pad 120, in conjunction with the second engaging component 170 and the first engaging component 140, increases the friction between the engaging disc 142 and the bucket body 110. This makes it less likely for the engaging disc 142 and the bucket body 110 to loosen. By increasing friction, the friction pad 120 reduces loosening and shaking between the engaging disc 142 and the bucket body 110, thereby improving safety during operation. It reduces the possibility of accidental loosening and lowers the risk of injury to operators and those nearby.

[0038] Example 3 aims to address the complexity of the operation. This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figure 1-9 The engaging cylinder 141 has a third sliding groove 162 inside, which is a threaded groove. A rotating column 163 is installed inside the third sliding groove 162, and the rotating column 163 has a threaded section. The end of the rotating column 163 is a piston end. The rotating column 163 rotates with the third sliding groove 162, and the rotating column 163 intermittently engages with the pressing block 172. The threaded section increases the stability of the connection, ensuring a firm connection between the rotating column 163 and the third sliding groove 162. During excavator operation, this stable connection effectively transmits force and withstands vibration, maintaining the reliability and stability of the connection.

[0039] A connecting cylinder 121 is connected to the side of the locking disc 142. The interior of the connecting cylinder 121 is configured as a threaded cylinder. An operating disc 122 is connected to the end of the rotating column 163. A short column 123 is connected to the side of the operating disc 122. The short column 123 is configured as a threaded column, and the short column 123 is threaded with the connecting cylinder 121. The threaded connection provides a reliable connection method. The threaded cylinder inside the connecting cylinder 121 and the threaded column 123 can firmly connect the locking disc 142 and the operating disc 122 together. This connection method can withstand various forces and vibrations during excavator operation, maintain connection stability, and avoid failures caused by loose connections.

[0040] In this embodiment, the arrangement of the short column 123 and the connecting cylinder 121, the cooperation of the short column 123, the connecting cylinder 121, the first engaging component 140, and the second engaging component 170, along with the multi-threaded connection, prevents the operating disc 122 from easily loosening from the bucket body 110 during engagement. The multi-threaded connection design simplifies and speeds up the installation and disassembly process. Operators only need to rotate the threads to connect or disconnect, reducing operational complexity and time consumption, thus improving the overall solution.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An easily replaceable excavator shovel tooth, comprising a bucket body (110) and a shovel tooth body (150), the shovel tooth body (150) being mounted on the side of the bucket body (110), characterized in that: The shovel tooth body (150) has a first mounting groove (130) on its side, and the bucket body (110) has a second mounting groove (160) on its side. A first engaging component (140) is provided between the first mounting groove (130) and the second mounting groove (160). A second engaging component (170) is provided inside the first mounting groove (130). The first engaging component (140) and the second engaging component (170) are used in conjunction. The first engaging assembly (140) includes an engaging cylinder (141) and an engaging disc (142). The engaging cylinder (141) is slidably engaged between the first mounting groove (130) and the second mounting groove (160). The engaging cylinder (141) is disposed inside the first mounting groove (130) and the second mounting groove (160). The second engaging assembly (170) includes an engaging plate (171) and a pressing block (172). The engaging plate (171) is disposed between two protrusions (144). Spring grooves (173) are respectively provided on the sides of the two protrusions (144). A telescopic post (174) is connected between the engaging plate (171) and the spring grooves (173). A spring (175) is sleeved on the outside of the telescopic post (174). The pressing block (172) is configured as an inclined block. The first mounting groove (130) has a first sliding groove (131) on its side, and the first mounting groove (130) and the first sliding groove (131) are connected. The second mounting groove (160) has a second sliding groove (161) on its side, and the second mounting groove (160) and the second sliding groove (161) are connected. A plurality of locking plates (171) are provided, and the plurality of locking plates (171) are respectively slidably locked with the first sliding groove (131) and the second sliding groove (161). The locking cylinder (141) has a third sliding groove (162) inside. The third sliding groove (162) is a threaded groove. A rotating column (163) is provided inside the third sliding groove (162). The rotating column (163) is provided with a threaded section. The end of the rotating column (163) is a piston end. The rotating column (163) is rotatably disposed with the third sliding groove (162). The rotating column (163) is intermittently engaged with the extrusion block (172). The locking disc (142) is connected to a connecting cylinder (121) on its side. The connecting cylinder (121) is configured with a threaded cylinder inside. The rotating column (163) is connected to an operating disc (122) at its end. The operating disc (122) is connected to a short column (123) on its side. The short column (123) is configured with a threaded column and is threaded to the connecting cylinder (121).

2. The easily replaceable excavator shovel teeth according to claim 1, characterized in that: The shovel tooth body (150) includes a clamping plate body (151) and a tooth tip body (176). The clamping plate body (151) is installed on the side of the tooth tip body (176). The clamping plate body (151) includes a first clamping plate (152) and a second clamping plate (153). The first clamping plate (152) is connected to the side of the tooth tip body, and the second clamping plate (153) is connected to the other side of the tooth tip body. The first clamping plate (152) and the second clamping plate (153) are used in conjunction.

3. The easily replaceable excavator shovel teeth according to claim 1, characterized in that: The bucket body (110) has a slot (111) on its side, and the slot (111) is connected to the second mounting slot (160). The first clamping plate (152) and the second clamping plate (153) are engaged together on the side of the slot (111). The first mounting slot (130) and the second mounting slot (160) are respectively set as threaded slots.

4. The easily replaceable excavator shovel teeth according to claim 1, characterized in that: The engaging disc (142) is connected to the end of the engaging cylinder (141), and the engaging disc (142) is disposed on the side of the bucket body (110). The engaging cylinder (141) is configured as a threaded cylinder, and the engaging cylinder (141) is threadedly engaged with the first mounting groove (130) and the second mounting groove (160). The engaging disc (142) is fitted to the side of the bucket body (110), and a friction pad (120) is connected between the engaging disc (142) and the bucket body (110).

5. The easily replaceable excavator shovel teeth according to claim 1, characterized in that: The locking cylinder (141) has a third mounting groove (143) on its side. There are several third mounting grooves (143). A second locking assembly (170) is installed inside each of the several third mounting grooves (143). There are two protrusions (144) inside the third mounting grooves (143).

Citation Information

Patent Citations

  • Connecting structure of bucket tooth and bucket tooth seat

    CN212956724U

  • Excavator bucket with bucket teeth convenient to replace

    CN217460703U