Thread screwing type bucket tooth adaptation system

Abstract

The invention discloses a thread screwing type bucket tooth adaptation system which comprises a tooth tip, a tooth holder and an adaptation body. The rotary pin comprises a limiting head, a threaded column and a plug column, and a limiting lock groove is formed in one side of the limiting head; the pin lug is provided with a threaded hole and an elastic lock catch located at an orifice of the threaded hole. A bearing part is arranged on the front side of the tooth holder, and holes are formed in two opposite side walls of the bearing part; an adapting part is arranged on the front side of the adapting body, a sleeving part with a sleeving hole is arranged on the rear side of the adapting body, the pin lug is fixed on the transverse inner wall of the sleeving hole, and a longitudinal hole is formed in the top wall of the adapting part; an adaptive hole is formed in the rear side of the tooth tip, and the pin lug is fixed to the inner side of the top wall of the adaptive hole. The bearing part is sleeved in the sleeving hole, the adaptive part is sleeved in the adaptive hole, the rotary pin is screwed in the threaded hole of the pin lug and clamped with the elastic lock catch of the pin lug, and the plunger extends into and abuts against the hole; the self-locking performance of the structure is improved through the thread screwing structure, the stressed threaded hole is formed in the additionally-arranged pin lug, and therefore the hole crack effect is avoided, and the connection stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of excavating equipment, and in particular to a threaded screw-type bucket tooth adapter system. Background Art

[0002] The excavation equipment acts on excavated materials such as stones and soil through bucket teeth, which include tooth tips and adapter components for assembling the tooth tips on the front side of the bucket.

[0003] Patent CN115369947A discloses a locking pin assembly and an excavating tooth connection system that are easy to plug and unplug. In the system, the locking pin assembly includes a locking seat and a locking pin; the locking pin includes a conical section and a locking head, and the locking head is located at the large-diameter end of the conical section; the outer peripheral wall of the locking head is provided with a slide groove extending axially to the inner end face of the locking head; a locking groove is provided on the circumferential side of the slide groove; the locking seat is provided with an axially penetrating pin hole that matches the locking pin; the inner wall of the pin hole is provided with a radially protruding locking convex portion; the conical section has a conical surface; during the insertion of the locking pin, the conical surface plays a guiding role, making the insertion process smoother; during the removal of the locking pin, a gap is gradually formed between the conical surface of the conical section and the inner wall of the connecting through hole or the pin hole, thereby making the locking pin easier to be removed, avoiding the problem of difficulty in plugging and unplugging the locking pin due to soil, mud, etc.

[0004] For large excavating teeth, the impact force and torque on the wear-resistant parts during operation are very large. In the technical solution of the above patent document, the connection is only achieved by the locking protrusion and the locking groove, and the structural stability is poor and it is easy to be damaged, thus affecting the fixing effect and service life of the excavating teeth. Summary of the invention

[0005] In view of the defects in the prior art, the technical problem to be solved by the present invention is to provide a threaded bucket tooth adapter system.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: a threaded screw-type bucket tooth adapter system, including a tooth tip, a tooth seat, an adapter located between the tooth tip and the tooth seat, a first pin ear, a second pin ear, a first rotating pin and a second rotating pin; The first rotating pin and the second rotating pin both comprise a limit head, a threaded column and a plug column, and a limit lock groove is provided on one side of the limit head; the first pin ear and the second pin ear both have a threaded hole and an elastic lock buckle located at the opening of the threaded hole; A bearing portion is provided on the front side of the tooth seat, and first holes are provided on both opposite side walls of the bearing portion; an adapting portion is provided on the front side of the adapter, and a sleeve portion with a sleeve hole is provided on the rear side, a first pin ear is fixed on the transverse inner wall of the sleeve hole, and a longitudinal second hole is provided on the top wall of the adapting portion; an adapting hole matching the adapting portion is provided on the rear side of the tooth tip, and the second pin ear is fixed on the inner side of the top wall of the adapting hole; The bearing portion is sleeved in the sleeve hole, the first rotating pin transversely passes through the first through hole of the sleeve portion and is screwed into the threaded hole of the first pin ear and is clamped by the elastic lock of the first pin ear, and the plug of the first rotating pin extends into and abuts against the first hole; The adapter is sleeved in the adapter hole, the second rotating pin longitudinally passes through the top wall of the tooth tip and is screwed into the threaded hole of the second pin ear and is clamped by the elastic lock of the second pin ear, and the plug of the second rotating pin extends into and abuts the second hole.

[0007] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is: the opposite side walls of the bearing part are provided with side bosses located at the rear side of the hole opening of the first hole; the lateral side hole walls of the sleeve hole are provided with side slots, and the first pin ear is inserted into the side slots from back to front; when the bearing part is sleeved in the sleeve hole, the side boss is located at the rear side of the side slot and abuts against the first pin ear.

[0008] The preferred technical solution adopted by the present invention to solve the above technical problems is: the adapter portion is recessed downward in the sleeve portion to form a stepped structure; the front end of the adapter portion is provided with a recessed groove recessed downward, the recessed groove extends backward to the sleeve portion to form a notch, and a longitudinal second hole is provided on the bottom wall of the recessed groove; A protrusion is provided on the inner side of the top wall of the adapter hole, and the protrusion is provided with a top slot, the second pin ear is inserted into the top slot from the back to the front, and the protrusion extends backward to form a protrusion; When the adapting portion is sleeved in the adapting hole, the protrusion is inserted into the recessed groove, and the lug is inserted into the inner recess and abuts against the rear wall.

[0009] The preferred technical solution adopted by the present invention to solve the above technical problem is: the diameter of the limit head is larger than the diameter of the threaded column, and the diameter of the threaded column is larger than the diameter of the plug column.

[0010] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is: an annular limiting portion is provided between the limit head and the threaded column, the diameter of the annular limiting portion is larger than the threaded column and smaller than the limit head, so that the first screw pin and the second screw pin both present a coaxial annular stepped shape; a plurality of wavy protrusions are provided on one side of the annular limiting portion, and a plurality of depressions of the wavy protrusions form the limit lock groove, and the circumferential protrusion height of the wavy protrusion does not exceed the outer circumferential surface of the limit head.

[0011] The preferred technical solution adopted by the present invention to solve the above technical problem is: the diameter of the plug gradually decreases away from the limit head to have an outer cone surface.

[0012] Another technical solution adopted by the present invention to solve the above technical problem is: a threaded screw-type bucket tooth adapter system, It includes a tooth tip, a tooth seat, an adapter located between the tooth tip and the tooth seat, a first pin ear, a second pin ear, a first rotating pin and a second rotating pin; The first rotating pin and the second rotating pin both comprise a limit head, a threaded column and a plug column, and a limit lock groove is provided on one side of the limit head; the first pin ear and the second pin ear both have a threaded hole and an elastic lock buckle located at the opening of the threaded hole; A bearing portion is provided at the front side of the tooth seat, and the opposite side walls of the bearing portion are provided with a first hole and a side boss located at the rear side of the hole opening of the first hole; the lateral side hole walls of the sleeve hole are provided with side slots, and the first pin ear is inserted into the side slots from the back to the front; when the bearing portion is sleeved in the sleeve hole, the side boss is located at the rear side of the side slot and abuts against the first pin ear; The adapter body is provided with an adapter portion at the front side, and a sleeve portion with a sleeve hole at the rear side, and the first pin ear is fixed on the transverse inner wall of the sleeve hole; The adapter portion is recessed downwards into the sleeve portion to form a stepped structure; a recessed groove is provided at the front end of the adapter portion, the recessed portion extends backwards to the sleeve portion to form a notch, and a second longitudinal hole is provided on the bottom wall of the recessed groove; An adapting hole matching the adapting portion is provided at the rear side of the tooth tip, a convex block is provided on the inner side of the top wall of the adapting hole, the convex block is provided with a top slot, the second pin ear is inserted into the top slot from the back to the front, and the convex block extends backward to form a convex ear; The bearing portion is sleeved in the sleeve hole, the first rotating pin transversely passes through the first through hole of the sleeve portion and is screwed into the threaded hole of the first pin ear and is clamped by the elastic lock of the first pin ear, and the plug of the first rotating pin extends into and abuts against the first hole; The adapter is sleeved in the adapter hole, the protrusion is inserted into the recessed groove, the lug is in the recessed portion and abuts against the rear wall; the second screw pin longitudinally passes through the top wall of the tooth tip and is screwed into the threaded hole of the second pin lug, and is clamped by the elastic lock of the second pin lug, and the plug of the second screw pin extends into and abuts against the second hole.

[0013] The preferred technical solution adopted by the present invention to solve the above technical problem is: the diameter of the limit head is larger than the diameter of the threaded column, and the diameter of the threaded column is larger than the diameter of the plug column; The diameter of the plug gradually decreases away from the stopper to have an outer conical surface, and the first hole and the second hole are both conical holes; An annular limiting portion is provided between the limiting head and the threaded column, and the diameter of the annular limiting portion is larger than the threaded column and smaller than the limiting head, so that the first rotating pin and the second rotating pin both present a coaxial annular stepped shape; the limiting lock groove is provided on one side of the annular limiting portion.

[0014] The preferred technical solution adopted by the present invention to solve the above technical problems is: a plurality of wavy protrusions are provided on one side of the annular limiting portion, a plurality of depressions of the wavy protrusions form the limiting lock groove, and the circumferential protrusion height of the wavy protrusion does not exceed the outer circumferential surface of the limiting head.

[0015] Another technical solution adopted by the present invention to solve the above technical problem is: a threaded screw-type bucket tooth adapter system, including a tooth tip, a tooth seat, a second pin ear and a second screw pin; The second rotating pin comprises a limit head, a threaded column and a plug column, and a limit lock groove is provided on one side of the limit head; the second pin ear is provided with a threaded hole and an elastic lock buckle located at the opening of the threaded hole; An adapter is provided at the front side of the gear seat, and an adapter portion is provided at the front side of the adapter, and the adapter portion is recessed downward to form a stepped structure with the rear section of the adapter; a recessed groove is provided at the front end of the adapter portion, and the recessed groove extends backward to the sleeve portion to form a notch, and a second longitudinal hole is provided on the bottom wall of the recessed groove; An adapting hole matching the adapting portion is provided at the rear side of the tooth tip, a convex block is provided on the inner side of the top wall of the adapting hole, the convex block is provided with a top slot, the second pin ear is inserted into the top slot from the back to the front, and the convex block extends backward to form a convex ear; The adapter is sleeved in the adapter hole, the protrusion is inserted into the recessed groove, the lug is in the recessed portion and abuts against the rear wall; the second screw pin longitudinally passes through the top wall of the tooth tip and is screwed into the threaded hole of the second pin lug, and is clamped by the elastic lock of the second pin lug, and the plug of the second screw pin extends into and abuts against the second hole.

[0016] The preferred technical solution adopted by the present invention to solve the above technical problem is: the diameter of the limit head is larger than the diameter of the threaded column, and the diameter of the threaded column is larger than the diameter of the plug column; The diameter of the plug gradually decreases away from the stopper to have an outer conical surface, and the first hole and the second hole are both conical holes; An annular limiting portion is provided between the limiting head and the threaded column, the diameter of the annular limiting portion is larger than the threaded column and smaller than the limiting head, so that the first rotating pin and the second rotating pin are both in a coaxial annular stepped shape; A plurality of wave-shaped protrusions are provided on one side of the annular limiting portion, a plurality of depressions of the wave-shaped protrusions form the limiting locking grooves, and a circumferential protrusion height of the wave-shaped protrusions does not exceed the outer circumferential surface of the limiting head.

[0017] Another technical solution adopted by the present invention to solve the above technical problem is: a threaded screw-type bucket tooth adapter system, It includes a tooth tip, a tooth seat, a pin ear and a rotating pin; The rotating pin includes a limit head, a threaded column and a plug column, and a limit lock groove is provided on one side of the limit head; the pin ear is provided with a threaded hole and an elastic lock buckle located at the opening of the threaded hole; The front side of the tooth seat is provided with a bearing part, and the two opposite side walls of the bearing part are provided with holes; the rear side of the tooth tip is provided with a sleeve part with a sleeve hole, and the two opposite side walls of the bearing part are provided with side bosses located at the rear side of the hole opening; the lateral side hole walls of the sleeve hole are provided with side slots, and the pin ears are inserted into the side slots from back to front; The bearing portion is sleeved in the sleeve hole, the side boss is located at the rear side of the side slot and abuts against the pin ear, the rotary pin transversely passes through the through hole of the sleeve portion and is screwed into the threaded hole of the pin ear and is clamped by the elastic lock of the pin ear, and the plug of the rotary pin extends into and abuts against the hole.

[0018] The preferred technical solution adopted by the present invention to solve the above technical problem is: the diameter of the limit head is larger than the diameter of the threaded column, and the diameter of the threaded column is larger than the diameter of the plug column; The diameter of the plug gradually decreases away from the limiting head to have an outer conical surface, and the first hole is a conical hole.

[0019] The preferred technical solution adopted by the present invention to solve the above technical problem is: an annular limiting portion is provided between the limiting head and the threaded column, the diameter of the annular limiting portion is larger than the threaded column and smaller than the limiting head, so that the rotating pin presents a coaxial annular stepped shape; A plurality of wave-shaped protrusions are provided on one side of the annular limiting portion, a plurality of depressions of the wave-shaped protrusions form the limiting locking grooves, and a circumferential protrusion height of the wave-shaped protrusions does not exceed the outer circumferential surface of the limiting head.

[0020] Compared with the prior art, the advantages of the present invention are: the self-locking property of the structure is improved through the threaded screwing structure, and sufficient torque bearing capacity is provided, thereby ensuring the stability and safety of the connection. The threaded hole that bears the force is arranged on the additional pin ear, rather than the tooth seat, tooth tip or adapter, thereby avoiding the crack effect of the hole structure due to the force, thereby improving the firmness and stability of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and Example 1, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining Example 1 and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described object and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0022] Figure 1 A schematic diagram of a bucket tooth of an excavating device according to a first embodiment of the present invention; Figure 2 This is an exploded view of the bucket teeth of the excavating equipment according to the first embodiment of the present invention; Figure 3 is a schematic diagram of a tooth tip according to the first embodiment of the present invention; Figure 4 Schematic diagram of the aptamer of Example 1 of the present invention Figure 1 ; Figure 5 Schematic diagram of the aptamer of Example 1 of the present invention Figure 2 ; Figure 6 A schematic diagram of a first rotating pin or a second locking pin according to a first embodiment of the present invention; Figure 7 A schematic diagram of a bucket tooth of an excavating device according to a second embodiment of the present invention; Figure 8 is a schematic diagram of a gear holder according to a second embodiment of the present invention; Fig. 9 is a schematic diagram of a tooth tip according to a second embodiment of the present invention; Fig.10 It is a schematic diagram of the assembly state of the pin ear and the rotating pin according to the first embodiment of the present invention; Fig.11 Schematic diagram of the rotary pin according to the first embodiment of the present invention.

[0023] Reference numerals: Embodiment 1: tooth tip 1, adapter 2, tooth seat 3, first screw pin 4, first pin ear 5, second pin ear 6, elastic lock buckle 7, second screw pin 8, adapter hole 11, bearing part 31, first hole 32, side boss 33, socket hole 22, socket part 23, side slot 26, first through hole 24, threaded hole e, limit head 43, threaded column 42, plug column 41, limit lock groove f, annular limit part 44, wavy protrusion n, recessed groove g, notch h, protrusion 14, top slot j, lug k, first inclined surface a, second inclined surface b.

[0024] Embodiment 2: tooth tip 1', tooth seat 3', pin ear 2', rotary pin 4', limit head 43', threaded column 42', plug column 41', limit lock groove f', threaded hole e', elastic lock buckle 7', bearing part 31', hole 32', socket hole 22', socket part 23', side boss 33', side slot 26', first strip inclined surface a', strip slot q, second strip inclined surface b', strip plug-in part w, annular limit part 44', wavy protrusion n'. DETAILED DESCRIPTION

[0025] Embodiment 1 of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary, and should not be construed as limiting the scope of protection of the present invention.

[0026] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or the directions or positional relationships in which the invention product is usually placed when in use, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. "First" and "second" are only for the purpose of making the description easier to understand, without any other directional meaning, and cannot be used as a limitation on the present invention. Embodiment 1:

[0028] like Figure 1-2 As shown, this embodiment provides a threaded bucket tooth adapter system, including a tooth tip 1, a tooth seat 3, and an adapter 2 located between the tooth tip 1 and the tooth seat 3.

[0029] like Figure 2-3 As shown, the tooth tip 1, as the part that directly contacts the material, is made of high-strength wear-resistant material, and an adapter hole 11 matching the adapter 2 is provided on its rear side for close cooperation with the adapter 2 to ensure uniform force and effective force transmission.

[0030] like Figure 1-2 As shown, the gear holder 3 is fixed on the bucket of the excavator or loader, and a bearing portion 31 is provided on the front side for supporting and fixing the adapter 2. The opposite side walls of the bearing portion 31 are provided with first holes 32 for receiving the plug 41 of the first rotating pin 4 to achieve lateral locking.

[0031] like Figure 2 ,4 -5, the adapter 2, as a key component connecting the tooth tip 1 and the tooth seat 3, is provided with an adapter portion 21 on the front side, which matches the adapter hole 11 of the tooth tip 1, and a sleeve portion 23 with a sleeve hole 22 on the rear side, and the two side transverse walls of the sleeve hole 22 are provided with first through holes 24 for installing the first rotating pin 4. The top wall of the adapter portion 21 is provided with a longitudinal second hole 25 for receiving the plug 41 of the second rotating pin 8 to achieve longitudinal locking.

[0032] In this embodiment, the connection between the tooth tip 1 and the adapter 2 and the connection between the adapter 2 and the tooth seat 3 are achieved by the cooperation of the pin ear and the lock pin. Specifically, the first pin ear 5 and the second pin ear 6 are respectively fixed to the lateral inner wall of the sleeve hole 22 of the adapter 2 and the inner side of the top wall of the adapter hole 11 of the tooth tip 1, and both are provided with a threaded hole e and an elastic lock buckle 7 located at the opening of the threaded hole e.

[0033] like Figure 2-6 As shown, the first screw pin 4 and the second screw pin 8 both include a limit head 43, a threaded column 42 and a plug column 41. A limit lock groove f is provided on one side of the limit head 43 for cooperating with the elastic lock buckle 7 of the pin ear. The first screw pin 4 is arranged horizontally, passes through the first through hole 24 of the adapter 2 and is screwed into the threaded hole e of the first pin ear 5; the second screw pin 8 is arranged longitudinally, passes through the top wall of the tooth tip and is screwed into the threaded hole e of the second pin ear 6. The threaded column 42 is used to be screwed and connected with the threaded hole e of the corresponding pin ear. The plug column 41 extends into and abuts the first hole 32 of the tooth seat 3 or the second hole 25 of the adapter 2 to achieve fixation. The limit head 43 is restricted to the outside of the pin ear. The elastic lock buckle 7 has the ability to elastically expand and contract along the radial direction of the threaded hole e, and can automatically engage the limit lock groove f of the screw pin to prevent the screw pin from loosening.

[0034] In this embodiment, the self-locking property of the structure is improved by the threaded screwing structure, and sufficient torque bearing capacity is provided, thereby ensuring the stability and safety of the connection. The stressed threaded hole e is arranged on the additional first pin ear 5 and the second pin ear 6, instead of the tooth seat 3 and the adapter 2, thereby avoiding the crack effect of the hole structure due to stress, thereby improving the firmness and stability of the entire system.

[0035] Different from the conventional excavating tooth structure, in this embodiment, an adapter 2 is added between the tooth tip 1 and the tooth seat 3, and the adapter 2 buffers the force of the tooth tip 1 on the tooth seat 3. In addition, because the tip of the tooth tip 1 is usually the most susceptible to wear during operation, compared with using a tooth tip 1 of conventional length, by adding an adapter 2 between the tooth tip 1 and the tooth seat 3, the cost of each replacement of the tooth tip 1 can be reduced.

[0036] It should be noted that the first rotary pin 4 is arranged horizontally and the second rotary pin 8 is arranged longitudinally. This installation method can effectively disperse the force generated by the bucket tooth during operation to multiple directions, avoiding stress concentration in a single direction, thereby significantly improving the stability and durability of the bucket tooth adaptation system.

[0037] like Figure 2 , 4 As shown, the opposite side walls of the bearing part 31 are provided with side bosses 33 located at the rear side of the opening of the first hole 32. The lateral side hole walls of the sleeve hole 22 are provided with side slots 26, and the first pin ear 5 is inserted into the side slots 26 from the back to the front. When the bearing part 31 is sleeved in the sleeve hole 22, the side boss 33 is located at the rear side of the side slot 26 and abuts against the first pin ear 5, limiting its backward separation. This not only enhances the stability of the structure, but also prevents the first pin ear 5 from loosening or falling off when subjected to impact force, thereby further improving the overall stability and safety of the bucket tooth adaptation system.

[0038] In addition, after the side boss 33 enters the socket hole 22, its inner side surface is laterally pressed against the inner wall of the socket hole 22, which not only enhances the structural strength of the adapter 2, but also reduces the assembly gap between the bearing portion 31 and the adapter 2, effectively preventing loosening or vibration caused by excessive gap, thereby further improving the overall stability and safety of the bucket tooth adapter system.

[0039] like Figure 2 , 5 As shown, the adapter portion 21 is recessed downward into the sleeve portion 23 to form a stepped structure. In practical applications, the stepped structure helps to disperse stress and improve structural strength. In addition, this stepped structure provides a deeper embedding space for the tooth tip 1, further increases the contact area, and enhances the connection stability between the two.

[0040] like Figure 2 , 3 As shown in Figures 5 and 6, the front end of the adapter part 21 is provided with a downwardly concave groove g, which extends backward to the sleeve part 23 to form a notch h, and the longitudinal second hole 25 is provided on the bottom wall of the concave groove g. The inner side of the top wall of the adapter hole 11 is provided with a protrusion 14, and the protrusion 14 is provided with a top slot j. The second pin ear 6 is inserted into the top slot j from the back to the front, and the protrusion 14 extends backward to form a lug k. When the adapter part 21 is sleeved in the adapter hole 11, the protrusion 14 is inserted into the concave groove g, and the lug k is in the inner concave part and abuts against the rear wall. It can be seen that in this embodiment, the concave groove g provides installation space for the second pin ear 6 and the top slot j, and the bottom wall and rear wall of the concave groove g limit the freedom of movement of the second pin ear 6, thereby improving the structural stability. In addition, the multiple concave-convex engagements of the protrusion 14 and the concave groove g, and the lug k and the notch h increase the contact area between the adapter 2 and the tooth tip 1, further restricting the longitudinal movement of the tooth tip 1 and improving the stability of the connection.

[0041] Preferably, if Figure 2 , 3 As shown in FIG. 5 , the two inner side walls of the top slot j are inclined inward toward the adapter hole to form a first inclined surface a, and at the same time, the two side walls of the second pin ear 6 are matching second inclined surfaces b. With the cooperation of the inclined surfaces, the second pin ear 6 can be more stably arranged in the top slot j.

[0042] Preferably, if Figure 3 As shown, the inner side of the lower wall of the adapter 21 is also provided with a central protrusion 15 opposite to the convex block 14, and the central protrusion 15 also extends beyond the rear end of the adapter 21 to form a secondary lug y. The other side of the adapter 21 opposite to the concave groove g is provided with a structure consistent with the concave groove g, thereby realizing the concave-convex fitting connection between the tooth tip and the adapter.

[0043] like Figure 6 As shown, the diameter of the plug 41 gradually decreases away from the stopper 43 to have an outer conical surface. This not only plays a guiding role in the insertion process, but more importantly, when the plug 41 and the first hole 32 or the second hole 25 in the shape of a tapered hole are matched, since both of them have conical features, a centering effect will naturally occur between them. During the assembly process, even if there is a certain initial deviation, it can be automatically centered through the guidance of the cone to ensure the accuracy of the final connection. When they are tightly matched, the contact area will be relatively large, further improving the stability of the connection.

[0044] like Figure 6 As shown, the diameter of the limit head 43 is larger than the diameter of the threaded column 42, and the diameter of the threaded column 42 is larger than the diameter of the plug 41. An annular limit portion 44 is provided between the limit head 43 and the threaded column 42, and the diameter of the annular limit portion 44 is larger than the threaded column 42 and smaller than the limit head 43, so that the first rotation pin 4 and the second rotation pin 8 both present a coaxial annular step shape. A plurality of wavy protrusions n are provided on one side of the annular limit portion 44, and a plurality of depressions of the wavy protrusions n form a limit lock groove f, and the circumferential protrusion height of the wavy protrusion n does not exceed the outer peripheral surface of the limit head 43. The limit lock groove f formed by the wavy protrusion n provides more locking options so that the elastic lock buckle 7 can adaptively fall into the appropriate limit lock groove f, thereby improving the stability and flexibility of the lock buckle.

[0045] The wavy protrusion n is set on the annular limiting portion 44 between the limiting head 43 and the threaded column 42, and the circumferential protrusion height does not exceed the outer circumferential surface of the limiting head 43. This avoids interference during the screwing process and the influence on the final positioning, and can also achieve concealment to prevent external media from adversely affecting its cooperation with the elastic lock buckle 7.

[0046] As the outermost part of the entire device, the limit head 43 provides an additional support area for the connection through its larger diameter, thereby enhancing the stability of the connection. The outer peripheral surface of the limit head 43 can be in a shape that tapers from the outside to the inside, and the orifice of the through hole of the tooth tip 1 or the adapter 2 that matches it is a trumpet-shaped shape that matches it, thereby increasing the contact area and returning the force inward. In addition, the surface of the limit head 43 can also be provided with anti-slip grooves, and the setting of the anti-slip grooves can further increase friction, naturally play a self-locking and anti-loosening role, and thus improve the stability of the connection. Embodiment 2:

[0047] like Figure 7-11 As shown, this embodiment is a simplification of the first embodiment, and provides a threaded screw-on bucket tooth adapter system, including a tooth tip 1', a tooth seat 3', a pin ear 2' and a screw pin 4'. The screw pin 4' includes a limit head 43', a threaded column 42' and a plug column 41', and a limit lock groove f' is provided on one side of the limit head 43'. The pin ear 2' is provided with a threaded hole e' and an elastic lock buckle 7' located at the opening of the threaded hole e'.

[0048] like Figure 8-9 As shown, a bearing portion 31' is provided on the front side of the tooth seat 3', and holes 32' are provided on the opposite side walls of the bearing portion 31'. A sleeve portion 23' having a sleeve hole 22' is provided on the rear side of the tooth tip 1', and side bosses 33' are provided on the opposite side walls of the bearing portion 31' at the rear side of the hole 32'. Side slots 26' are provided on the lateral side walls of the sleeve hole 22', and the pin ears 2' are inserted into the side slots 26' from the back to the front.

[0049] like Figure 7-11 As shown, the bearing portion 31' is sleeved in the sleeve hole 22', the side boss 33' is located at the rear side of the side slot 26' and abuts against the pin ear 2', the rotary pin 4' transversely passes through the through hole of the sleeve portion 23' and is screwed into the threaded hole e' of the pin ear 2', and is clamped by the elastic lock buckle 7' of the pin ear 2', and the plug 41' of the rotary pin 4' extends into and abuts the hole 32'.

[0050] In this embodiment, the self-locking property of the structure is improved by the threaded screwing structure, and sufficient torque bearing capacity is provided, thereby ensuring the stability and safety of the connection. The threaded hole e' subjected to force is arranged on the additional pin ear 2', rather than on the tooth seat 3' or the tooth tip 1', thereby avoiding the crack effect of the hole structure due to force, thereby improving the firmness and stability of the entire system.

[0051] like Fig. 9 , 10As shown, specifically, the side slot 26' is recessed in the transverse hole wall of the sleeve hole 22', and the upper and lower groove walls of the side slot 26' are provided with a first strip-shaped inclined surface a', and the first strip-shaped inclined surface a' forms a recessed strip-shaped slot q. The pin ear 2' is provided with a second strip-shaped inclined surface b' corresponding to the first strip-shaped inclined surface a', and the second strip-shaped inclined surface b' forms a strip-shaped plug-in portion w. The pin ear 2' is inserted into the side slot 26' of the tooth tip 1', and the strip-shaped slot q is plugged into the strip-shaped plug-in portion w. The pin ear 2' and the side slot 26' cannot rotate in the circumferential direction, and the through hole of the transverse hole wall of the sleeve hole 22' is relatively connected with the threaded hole e' to form a channel for the rotation pin 4' to extend into. Through this inclined concave-convex plug-in structure, the contact area between the pin ear 2' and the tooth tip 1' is increased, and the movement of the pin ear 2' is further restricted, making the entire connection structure more stable. When the tooth tip 1' is impacted or vibrated, it can more effectively disperse and resist external forces, thereby enhancing the overall impact resistance of the tooth tip 1', which helps to prevent the connection from loosening or damage due to long-term use or harsh working environment.

[0052] The pin ear 2' has an inclined inner end face, and the side slot 26' has an inclined groove bottom that matches the inclined inner end face. This contact method not only increases the contact area, but also makes the contact more uniform, thereby improving the tightness and stability of the connection. During the assembly process, an automatic centering effect will occur between the pin ear 2' and the side slot 26'. Even if there is a certain deviation in the initial position, the inclined surface will guide the pin ear 2' to gradually adjust to the correct position to ensure the accuracy of the final connection. This automatic centering effect helps to reduce assembly errors and improve the tightness of the connection.

[0053] like Figure 8 As shown, the two opposite side walls of the bearing portion 31' are provided with side bosses 33' located at the rear side of the orifice of the hole 32'. When the bearing portion 31' is sleeved in the sleeve hole 22', the side bosses 33' are located at the rear side of the side slot 26' and abut against the pin ear 2', restricting its backward separation. This not only enhances the stability of the structure, but also prevents the pin ear 2' from loosening or falling off when subjected to impact force, thereby further improving the overall stability and safety of the bucket tooth adapter system. In addition, after the side boss 33' enters the sleeve hole 22', its inner side surface laterally abuts against the inner wall of the sleeve hole 22', which not only enhances the structural strength of the adapter 2, but also reduces the assembly gap between the bearing portion 31' and the tooth tip 1', effectively preventing loosening or vibration caused by excessive gap, thereby further improving the overall stability and safety of the bucket tooth adapter system.

[0054] like Fig.11As shown, the diameter of the plug 41' gradually decreases away from the stopper 43' to have an outer conical surface. This not only plays a guiding role in the insertion process, but more importantly, when the plug 41' and the tapered hole 32' are matched, since both have conical features, a centering effect will naturally occur between them. During the assembly process, even if there is a certain initial deviation, it can be automatically centered through the guidance of the cone to ensure the accuracy of the final connection. When they are tightly matched, the contact area will be relatively large, further improving the stability of the connection.

[0055] like Fig.11 As shown, the diameter of the limit head 43' is larger than the diameter of the threaded column 42', and the diameter of the threaded column 42' is larger than the diameter of the plug 41'. An annular limit portion 44' is provided between the limit head 43' and the threaded column 42'. The diameter of the annular limit portion 44' is larger than the threaded column 42' and smaller than the limit head 43', so that the screw pin 4' presents a coaxial annular stepped shape. A plurality of wavy protrusions n' are provided on one side of the annular limit portion 44', and a plurality of depressions of the wavy protrusions n' form a limit lock groove f', and the circumferential protrusion height of the wavy protrusion n' does not exceed the outer peripheral surface of the limit head 43'. The limit lock groove f' formed by the wavy protrusion n' provides more locking options so that the elastic lock buckle 7' can adaptively fall into a suitable locking slot, thereby improving the stability and flexibility of the lock buckle.

[0056] The wavy protrusion n' is set on the annular limiting portion 44' between the limiting head 43' and the threaded column 42', and the circumferential protrusion height does not exceed the outer circumferential surface of the limiting head 43'. This avoids interference during the screwing process and the influence on the final positioning, and can also achieve concealment to prevent external media from adversely affecting its cooperation with the elastic lock buckle 7'.

[0057] As the outermost part of the entire device, the stopper head 43' provides an additional support area for the connection through its larger diameter, thereby enhancing the stability of the connection. The outer peripheral surface of the stopper head 43' can be in a shape that tapers from the outside to the inside, and the opening of the through hole of the tooth tip 1' that matches it is a trumpet-shaped shape that matches it, thereby increasing the contact area and returning the force inward. In addition, the surface of the stopper head 43' can also be provided with anti-skid patterns, which can further increase friction, naturally play a self-locking and anti-loosening role, and thus improve the stability of the connection.

[0058] The above is an introduction to a threaded screw-on bucket tooth adapter system provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, the present invention can also be improved and modified without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A threaded bucket tooth adapter system, characterized in that: It includes a tooth tip, a tooth seat, an adapter located between the tooth tip and the tooth seat, a first pin ear, a second pin ear, a first rotating pin and a second rotating pin; The first rotating pin and the second rotating pin both comprise a limit head, a threaded column and a plug column, and a limit lock groove is provided on one side of the limit head; the first pin ear and the second pin ear both comprise a threaded hole and an elastic lock buckle located at the opening of the threaded hole; The front side of the tooth seat is provided with a bearing part, and the two opposite side walls of the bearing part are provided with a first hole; the front side of the adapter is provided with an adapting part, and the rear side is provided with a sleeve part with a sleeve hole; the first pin ear is fixed on the transverse inner wall of the sleeve hole, and the top wall of the adapting part is provided with a longitudinal second hole; the rear side of the tooth tip is provided with an adapting hole matching the adapting part, and the second pin ear is fixed on the inner side of the top wall of the adapting hole; The bearing portion is sleeved in the sleeve hole, the first rotating pin transversely passes through the first through hole of the sleeve portion and is screwed into the threaded hole of the first pin ear and is clamped by the elastic lock of the first pin ear, and the plug of the first rotating pin extends into and abuts against the first hole; The adapter is sleeved in the adapter hole, the second rotating pin longitudinally passes through the top wall of the tooth tip and is screwed into the threaded hole of the second pin ear and is clamped by the elastic lock of the second pin ear, and the plug of the second rotating pin extends into and abuts the second hole.

2. The threaded bucket tooth adapter system according to claim 1, characterized in that: The opposite side walls of the bearing part are provided with side bosses located at the rear side of the opening of the first hole; the lateral side hole walls of the sleeve hole are provided with side slots, and the first pin ears are inserted into the side slots from back to front; when the bearing part is sleeved in the sleeve hole, the side bosses are located at the rear side of the side slots and abut against the first pin ears.

3. The threaded bucket tooth adapter system according to claim 1, characterized in that: The adapter portion is recessed downwardly into the sleeve portion to form a stepped structure; a recessed groove is provided at the front end of the adapter portion, the recessed groove extends backward to the sleeve portion to form a notch, and a second longitudinal hole is provided on the bottom wall of the recessed groove; A protrusion is provided on the inner side of the top wall of the adapter hole, and the protrusion is provided with a top slot, the second pin ear is inserted into the top slot from the back to the front, and the protrusion extends backward to form a protrusion; When the adapting portion is sleeved in the adapting hole, the protrusion is inserted into the recessed groove, and the lug is inserted into the inner recess and abuts against the rear wall.

4. The threaded bucket tooth adapter system according to claim 1, characterized in that: The diameter of the limit head is larger than the diameter of the threaded column, and the diameter of the threaded column is larger than the diameter of the plug column.

5. The threaded bucket tooth adapter system according to claim 4, characterized in that: An annular limiting portion is provided between the limiting head and the threaded column, and the diameter of the annular limiting portion is larger than the threaded column and smaller than the limiting head, so that the first rotating pin and the second rotating pin both present a coaxial annular stepped shape; a plurality of wavy protrusions are provided on one side of the annular limiting portion, and a plurality of depressions of the wavy protrusions form the limiting lock groove, and the circumferential protrusion height of the wavy protrusion does not exceed the outer circumferential surface of the limiting head.

6. The threaded bucket tooth adapter system according to claim 1, characterized in that: The diameter of the plug gradually decreases away from the stopper to have an outer conical surface.

7. A threaded bucket tooth adapter system, characterized in that: It includes a tooth tip, a tooth seat, an adapter located between the tooth tip and the tooth seat, a first pin ear, a second pin ear, a first rotating pin and a second rotating pin; The first rotating pin and the second rotating pin both comprise a limit head, a threaded column and a plug column, and a limit lock groove is provided on one side of the limit head; the first pin ear and the second pin ear both have a threaded hole and an elastic lock buckle located at the opening of the threaded hole; A bearing portion is provided at the front side of the tooth seat, and the opposite side walls of the bearing portion are provided with a first hole and a side boss located at the rear side of the hole opening of the first hole; the lateral side hole walls of the sleeve hole are provided with side slots, and the first pin ear is inserted into the side slots from the back to the front; when the bearing portion is sleeved in the sleeve hole, the side boss is located at the rear side of the side slot and abuts against the first pin ear; The adapter body is provided with an adapter portion at the front side, and a sleeve portion with a sleeve hole at the rear side, and the first pin ear is fixed on the transverse inner wall of the sleeve hole; The adapter portion is recessed downwards into the sleeve portion to form a stepped structure; a recessed groove is provided at the front end of the adapter portion, the recessed portion extends backwards to the sleeve portion to form a notch, and a second longitudinal hole is provided on the bottom wall of the recessed groove; An adapting hole matching the adapting portion is provided at the rear side of the tooth tip, a convex block is provided on the inner side of the top wall of the adapting hole, the convex block is provided with a top slot, the second pin ear is inserted into the top slot from the back to the front, and the convex block extends backward to form a convex ear; The bearing portion is sleeved in the sleeve hole, the first rotating pin transversely passes through the first through hole of the sleeve portion and is screwed into the threaded hole of the first pin ear and is clamped by the elastic lock of the first pin ear, and the plug of the first rotating pin extends into and abuts against the first hole; The adapter is sleeved in the adapter hole, the protrusion is inserted into the recessed groove, the lug is in the recessed portion and abuts against the rear wall; the second screw pin longitudinally passes through the top wall of the tooth tip and is screwed into the threaded hole of the second pin lug, and is clamped by the elastic lock of the second pin lug, and the plug of the second screw pin extends into and abuts against the second hole.

8. The threaded bucket tooth adapter system according to claim 7, characterized in that: The diameter of the limit head is larger than the diameter of the threaded column, and the diameter of the threaded column is larger than the diameter of the plug column; The diameter of the plug gradually decreases away from the stopper to have an outer conical surface, and the first hole and the second hole are both conical holes; An annular limiting portion is provided between the limiting head and the threaded column, and the diameter of the annular limiting portion is larger than the threaded column and smaller than the limiting head, so that the first rotating pin and the second rotating pin both present a coaxial annular stepped shape; the limiting lock groove is provided on one side of the annular limiting portion.

9. The threaded bucket tooth adapter system according to claim 8, characterized in that: A plurality of wave-shaped protrusions are provided on one side of the annular limiting portion, a plurality of depressions of the wave-shaped protrusions form the limiting locking grooves, and a circumferential protrusion height of the wave-shaped protrusions does not exceed the outer circumferential surface of the limiting head.

10. A threaded bucket tooth adapter system, characterized in that: It includes a tooth tip, a tooth seat, a second pin ear and a second rotating pin; The second rotating pin comprises a limit head, a threaded column and a plug column, and a limit lock groove is provided on one side of the limit head; the second pin ear is provided with a threaded hole and an elastic lock buckle located at the opening of the threaded hole; An adapter is provided at the front side of the gear seat, and an adapter portion is provided at the front side of the adapter, and the adapter portion is recessed downward to form a stepped structure with the rear section of the adapter; a recessed groove is provided at the front end of the adapter portion, and the recessed groove extends backward to the sleeve portion to form a notch, and a second longitudinal hole is provided on the bottom wall of the recessed groove; An adapting hole matching the adapting portion is provided at the rear side of the tooth tip, a convex block is provided on the inner side of the top wall of the adapting hole, the convex block is provided with a top slot, the second pin ear is inserted into the top slot from the back to the front, and the convex block extends backward to form a convex ear; The adapter is sleeved in the adapter hole, the protrusion is inserted into the recessed groove, the lug is in the recessed portion and abuts against the rear wall; the second screw pin longitudinally passes through the top wall of the tooth tip and is screwed into the threaded hole of the second pin lug, and is clamped by the elastic lock of the second pin lug, and the plug of the second screw pin extends into and abuts against the second hole.

11. The threaded bucket tooth adapter system according to claim 10, characterized in that: The diameter of the limit head is larger than the diameter of the threaded column, and the diameter of the threaded column is larger than the diameter of the plug column; The diameter of the plug gradually decreases away from the stopper to have an outer conical surface, and the first hole and the second hole are both conical holes; An annular limiting portion is provided between the limiting head and the threaded column, the diameter of the annular limiting portion is larger than the threaded column and smaller than the limiting head, so that the first rotating pin and the second rotating pin are both in a coaxial annular stepped shape; A plurality of wave-shaped protrusions are provided on one side of the annular limiting portion, a plurality of depressions of the wave-shaped protrusions form the limiting locking grooves, and a circumferential protrusion height of the wave-shaped protrusions does not exceed the outer circumferential surface of the limiting head.

12. A threaded bucket tooth adapter system, characterized in that: It includes a tooth tip, a tooth seat, a pin ear and a rotating pin; The rotating pin includes a limit head, a threaded column and a plug column, and a limit lock groove is provided on one side of the limit head; the pin ear is provided with a threaded hole and an elastic lock buckle located at the opening of the threaded hole; The front side of the tooth seat is provided with a bearing part, and the two opposite side walls of the bearing part are provided with holes; the rear side of the tooth tip is provided with a sleeve part with a sleeve hole, and the two opposite side walls of the bearing part are provided with side bosses located at the rear side of the hole opening; the lateral side hole walls of the sleeve hole are provided with side slots, and the pin ears are inserted into the side slots from back to front; The bearing portion is sleeved in the sleeve hole, the side boss is located at the rear side of the side slot and abuts against the pin ear, the rotary pin transversely passes through the through hole of the sleeve portion and is screwed into the threaded hole of the pin ear and is clamped by the elastic lock of the pin ear, and the plug of the rotary pin extends into and abuts against the hole.

13. The threaded bucket tooth adapter system according to claim 12, characterized in that: The diameter of the limit head is larger than the diameter of the threaded column, and the diameter of the threaded column is larger than the diameter of the plug column; The diameter of the plug gradually decreases away from the limiting head to have an outer conical surface, and the first hole is a conical hole.

14. A threaded bucket tooth adapter system according to claim 13, characterized in that: An annular limiting portion is provided between the limiting head and the threaded column, the diameter of the annular limiting portion is larger than the threaded column and smaller than the limiting head, so that the rotating pin presents a coaxial annular stepped shape; A plurality of wave-shaped protrusions are provided on one side of the annular limiting portion, a plurality of depressions of the wave-shaped protrusions form the limiting locking grooves, and a circumferential protrusion height of the wave-shaped protrusions does not exceed the outer circumferential surface of the limiting head.

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