Tooth holder with high stability for bucket tooth

Abstract

The utility model relates to the technical field of excavator bucket accessories, in particular to a high-stability tooth holder for a bucket tooth, the high-stability tooth holder is connected with the bucket tooth, one end of the bucket tooth is provided with a containing cavity, the upper cavity wall and the lower cavity wall of the containing cavity are each provided with a plurality of clamping grooves, and the high-stability tooth holder for the bucket tooth comprises a tooth holder body, a containing cavity is formed in the tooth holder body, one end of the tooth holder body is provided with a profiling part, the profiling part extends into the containing cavity, a plurality of lifting pieces are arranged in the height direction of the profiling part in a lifting mode, and when the profiling part extends into the containing cavity and the outer surface of the profiling part is attached to the cavity wall of the containing cavity, the lifting pieces can lift up and down. According to the utility model, the lifting pieces are connected with the clamping grooves in a clamping manner, so that when the profiling part is not completely attached to the cavity wall of the accommodating cavity, the stability is better than that in the prior art.

Description

Technical Field

[0001] The present application relates to the technical field of excavator bucket accessories, and more specifically to a tooth seat with high stability for bucket teeth. Background Art

[0002] An excavator is an earth-moving machine that uses a bucket to dig soil, coal, rocks and other materials above or below the bearing surface, and loads them into transport vehicles or unloads them to stockpiles. The bucket tooth structure of the bucket includes bucket teeth and tooth seats. The tooth seats are welded to the body of the bucket, and the bucket teeth are removably wrapped outside the tooth seats. When the bucket teeth are severely worn, only the bucket teeth need to be replaced.

[0003] Our company currently has a gear holder, such as Figure 1 As shown, it includes a profiling part 90, the side wall of the profiling part 90 has a pin hole 901, the external bucket tooth has a receiving cavity, the two side walls of the receiving cavity each have a through hole, the profiling part 90 of the tooth holder extends into the receiving cavity, and the surface of the profiling part 90 fits with the cavity wall of the receiving cavity, and the pin hole 901 is directly opposite to the two through holes, and the external pin shaft passes through the through hole and the pin hole 901 in sequence to achieve the connection between the tooth holder and the bucket tooth. However: when adopting the above connection method, the surface accuracy of the profiling part 90 and the cavity wall of the receiving cavity is required to be relatively high. If the profiling part 90 is not completely fitted with the cavity wall of the receiving cavity, the bucket tooth is prone to make a slight up and down shake relative to the tooth holder, and the stability is reduced.

[0004] Therefore, there is a need to provide a tooth seat with high stability for a bucket tooth with better stability when the contoured portion is not completely in contact with the wall of the accommodating cavity. Utility Model Content

[0005] The main purpose of the present application is to provide a tooth holder with high stability for bucket teeth, which is connected to the bucket teeth, and one end of the bucket teeth has a receiving cavity, wherein the upper and lower cavity walls of the receiving cavity are provided with a plurality of slots. The tooth holder with high stability for bucket teeth comprises a tooth holder body, and one end of the tooth holder body has a profiling portion, and the profiling portion extends into the receiving cavity, and a plurality of lifting members are provided in a height direction of the profiling portion so as to be liftable. When the profiling portion extends into the receiving cavity and the outer surface of the profiling portion is in contact with the cavity wall of the receiving cavity, a lifting member is clamped in each of the slots, and by clamping the lifting member with the slot, when the profiling portion is not completely in contact with the cavity wall of the receiving cavity, the stability is better than that of the prior art.

[0006] Another object of the present application is to provide a tooth seat for a bucket tooth with high stability. Among them, the side wall of the profiling part has a plurality of trigger channels, the top wall of the profiling part has a plurality of lifting channels, the lifting channels penetrate from the top wall of the profiling part to the bottom wall of the profiling part, the trigger channels correspond to the lifting channels one by one, each trigger channel is communicated with the corresponding lifting channel, two lifting parts are arranged in each lifting channel, and a pushing part is arranged in each trigger channel. When the pushing part moves, the two lifting parts move away from or towards each other, and the pushing part is used to drive the two lifting parts to move.

[0007] In order to achieve the above at least one invention object, the present application provides a tooth seat for a bucket tooth with high stability, which is connected to the bucket tooth. One end of the bucket tooth has a receiving cavity, wherein:

[0008] A plurality of clamping grooves are provided on the upper and lower cavity walls of the receiving cavity;

[0009] The tooth seat for the bucket tooth with high stability includes

[0010] A tooth seat body, one end of the tooth seat body has a profiling part, the profiling part extends into the receiving cavity, and a plurality of lifting parts are arranged on the profiling part in a vertically liftable manner. When the profiling part extends into the receiving cavity and the outer surface of the profiling part fits against the cavity wall of the receiving cavity, each clamping groove is clamped with one of the lifting parts.

[0011] In one or more embodiments of the present application, the side wall of the profiling part has a plurality of trigger channels, the top wall of the profiling part has a plurality of lifting channels, the lifting channels penetrate from the top wall of the profiling part to the bottom wall of the profiling part, the trigger channels correspond to the lifting channels one by one, each trigger channel is communicated with the corresponding lifting channel, two lifting parts are arranged in each lifting channel, and a pushing part is arranged in each trigger channel. When the pushing part moves, the two lifting parts move away from or towards each other.

[0012] In one or more embodiments of the present application, one end of the two lifting parts in each lifting channel that are close to each other has a first inclined surface, and the included angle between the two inclined surfaces is an acute angle. One end of the pushing part close to the lifting part has two symmetrically arranged second inclined surfaces, and the slope of each second inclined surface is equal to that of the corresponding first inclined surface. When the end of the pushing part with the second inclined surface moves from one side of the two lifting parts close to the trigger channel to the other side of the lifting part, each second inclined surface fits against the corresponding first inclined surface, and the two lifting parts move away from each other and extend a predetermined distance from both ends of the lifting channel.

[0013] In one or more embodiments of the present application, a side wall of the accommodating cavity has a plurality of through holes, the through holes are connected to the card slot, the trigger channel includes a rectangular cavity and a threaded hole, the two ends of the rectangular cavity are respectively connected to the lifting channel and the threaded hole, each of the rectangular cavity is provided with a pushing member, the tooth seat with high stability for the bucket tooth also includes a plurality of screwing members, each of the threaded holes is threadedly connected with a screwing member, the screwing member is rotatably and movably connected to the pushing member, and when the screwing member rotates a predetermined angle, the pushing member approaches or moves away from the two lifting members.

[0014] In one or more embodiments of the present application, the pushing member has a semi-spherical cylindrical cavity and two anti-slip parts at one end close to the screwing member, and the screwing member has a ball head end at one end close to the pushing member. When the ball head end extends into the semi-spherical cylindrical cavity, the two anti-slip parts are fixedly connected to the pushing member and make the cavity opening of the semi-spherical cylindrical cavity have a constricted arrangement.

[0015] In one or more embodiments of the present application, the end of the screwing member provided with the ball head end also has a plurality of abutment protrusions, and the abutment protrusions are in contact with the end surface of the pushing member close to the screwing member.

[0016] In one or more embodiments of the present application, the end of the screwing member facing away from the ball head end has a screwing groove.

[0017] In one or more embodiments of the present application, an end of the tooth seat body away from the contoured portion has a clamping groove.

[0018] In an embodiment of the present application, the bucket tooth has a high-stability tooth holder connected to the bucket tooth, one end of the bucket tooth has a receiving cavity, and the upper and lower cavity walls of the receiving cavity have a plurality of slots. The bucket tooth has a high-stability tooth holder including a tooth holder body, one end of the tooth holder body has a profiling portion, the profiling portion extends into the receiving cavity, and a plurality of lifting members are provided in a height direction of the profiling portion so as to be liftable. When the profiling portion extends into the receiving cavity and the outer surface of the profiling portion is in contact with the cavity wall of the receiving cavity, a lifting member is clamped in each of the slots. By clamping the lifting member with the slot, when the profiling portion is not completely in contact with the cavity wall of the receiving cavity, the stability is better than that of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] These and / or other aspects and advantages of the present application will become clearer and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which:

[0020] Figure 1 The figure shows a schematic diagram of the structure of a tooth seat with high stability for an existing bucket tooth;

[0021] Figure 2 The figure shows a schematic structural diagram of a tooth seat with high stability for a bucket tooth at a certain angle;

[0022] Figure 3 The figure shows a schematic structural diagram of a tooth seat with high stability for a bucket tooth at another angle;

[0023] Figure 4 The figure shows Figure 3 a cross-sectional view taken along line A-A of

[0024] Figure 5 The figure shows Figure 4 a cross-sectional view taken along line B-B of

[0025] Figure 6 The figure shows Figure 4 a partially enlarged view at C of Detailed implementation manners

[0026] The terms and words used in the following description of the specification and claims are not limited to the literal meanings, but are used only by the inventor to enable a clear and consistent understanding of the present application. Therefore, it is obvious to those skilled in the art that the following description of various embodiments of the present application is provided only for the purpose of illustration and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0027] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "a" cannot be understood as a limitation on the number.

[0028] Although ordinal numbers such as "first", "second", etc. will be used to describe various components, those components are not limited herein. The term is only used to distinguish one component from another. For example, the first component can be called the second component, and similarly, the second component can also be called the first component without departing from the teaching of the inventive concept. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0029] The terms used herein are only for the purpose of describing various embodiments and are not intended to be limiting. As used herein, the singular forms are also intended to include the plural forms unless the context clearly indicates otherwise. Additionally, it will be understood that the terms "comprises" and / or "has" when used in this specification specify the presence of the stated features, numbers, steps, operations, components, elements, or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

[0030] A tooth seat with high stability for a schematic bucket tooth,

[0031] Reference Figures 2 to 6 , a tooth seat with high stability for a bucket tooth according to a preferred embodiment of the present utility model, is connected to the bucket tooth. One end of the bucket tooth has a receiving cavity (not marked in the figure), and there are several card slots (not marked in the figure) on the upper and lower cavity walls of the receiving cavity. In the embodiment of the present application, the card slots are all rectangular slots.

[0032] Furthermore, as Figure 2 shown, the tooth seat with high stability for the bucket tooth includes a tooth seat body 10. One end of the tooth seat body 10 has a profiling part 101. The profiling part 101 extends into the receiving cavity. A plurality of lifting members 20 are arranged on the profiling part 101 in a vertically movable manner. When the profiling part 101 extends into the receiving cavity and the outer surface of the profiling part 101 fits against the cavity wall of the receiving cavity, each of the lifting members 20 is clamped in one of the card slots.

[0033] It should be noted that by arranging the vertically movable lifting members 20 on the profiling part 101 and arranging the card slots in the receiving cavity, when the lifting members 20 are clamped with the card slots, the position of the bucket tooth relative to the profiling part 101 is fixed. When the outer surface of the profiling part 101 fits against the cavity wall of the receiving cavity, the purpose of clamping the lifting members 20 with the card slots is mainly to prevent the bucket tooth from moving along the length direction of the profiling part 101 and to separate the receiving cavity from the profiling part 101. When the profiling part 101 only partially fits against the cavity wall of the receiving cavity due to casting errors, since both the lifting members 20 and the card slots are machined, their machining accuracy is high and the machining area is much smaller than that of machining the entire profiling part 101. At this time, the lifting members 20 are clamped with the card slots, which will replace the surface of the profiling part 101 where there is no fit. By restricting the movement of the bucket tooth up and down, forward and backward, or left and right through the lifting members 20, the advantage of better stability can be achieved when the profiling part 101 does not completely fit against the cavity wall of the receiving cavity.

[0034] Furthermore, to install the lifting members 20 on the profiling part 101 and to make the lifting members 20 hidden when the profiling part 101 extends into the receiving cavity, after the profiling part 101 completely extends into the receiving cavity, the lifting members 20 extend out of the outer surface of the profiling part 101 by a predetermined distance and extend into the corresponding card slots and are clamped with the card slots, as Figure 2 and Figure 3As shown, the side wall of the profiling part 101 has a plurality of trigger channels 1011, and the top wall of the profiling part 101 has a plurality of lifting channels 1012. The lifting channels 1012 penetrate from the top wall of the profiling part 101 to the bottom wall of the profiling part 101. The trigger channels 1011 correspond to the lifting channels 1012 one by one, and each trigger channel 1011 communicates with the corresponding lifting channel 1012, as Figure 4 shown, two lifting members 20 are arranged in each lifting channel 1012, and a pushing member 30 is arranged in each trigger channel 1011. When the pushing member 30 moves, the two lifting members 20 move away from or towards each other.

[0035] It should be noted that under normal conditions, the lifting members 20 are placed inside the lifting channels 1012. After the profiling part 101 completely extends into the accommodating cavity, the pushing member 30 is moved towards the lifting members 20, and the corresponding lifting members 20 move away from each other and extend a predetermined distance outside the surface of the profiling part 101; similarly, when replacing the bucket tooth, the pushing member 30 is moved in a direction away from the lifting members 20, and the lifting members 20 move towards each other and sink into the lifting channels 1012. At this time, the bucket tooth can be separated from the tooth seat body 10.

[0036] Furthermore, in order to make the lifting members 20 move up and down when the pushing member 30 moves, as Figure 4 shown, one end of the two lifting members 20 in each lifting channel 1012 close to each other has a first inclined surface 201, and the included angle between the two inclined surfaces is an acute angle. One end of the pushing member 30 close to the lifting members 20 has two symmetrically arranged second inclined surfaces 301. Each second inclined surface 301 has the same slope as the corresponding first inclined surface 201. When the end of the pushing member 30 with the second inclined surface 301 moves from the side of the two lifting members 20 close to the trigger channel 1011 to the other side of the lifting members 20, each second inclined surface 301 fits with the corresponding first inclined surface 201, and the two lifting members 20 move away from each other and extend a predetermined distance at both ends of the lifting channel 1012.

[0037] More specifically, as Figure 5As shown, one end of two adjacent lifting members 20 in each lifting channel 1012 has an extension portion 202. A blocking member 1013 is provided at each end of the lifting channel 1012 close to the extension portion 202. The blocking member 1013 is spaced from the extension portion 202 by a predetermined distance. A plurality of elastic members 50 are provided between the extension portion 202 on the lifting member 20 below the tooth base body 10 and the corresponding blocking member 1013. Two ends of the elastic member 50 are respectively connected to the lifting member 20 and the corresponding blocking member 1013. By providing the elastic member 50, the lower lifting member 20 is normally placed in the lifting channel 1012, and the upper lifting member 20 under the action of gravity is normally placed in the lifting channel 1012. In addition, by providing the blocking member 1013, the risk of the lifting member 20 disengaging from the lifting channel 1012 is avoided.

[0038] Further, to achieve the movement of the pushing member 30, a side wall of the accommodating cavity has a plurality of through holes, and the through holes communicate with the card slots, as Figure 4 As shown, the trigger channel 1011 includes a rectangular cavity 1011A and a threaded hole 1011B. Two ends of the rectangular cavity 1011A are respectively communicated with the lifting channel 1012 and the threaded hole 1011B. A pushing member 30 is provided in each rectangular cavity 1011A. The tooth base for the bucket tooth with high stability further includes a plurality of screwing members 40. A screwing member 40 is threadedly connected in each threaded hole 1011B. The screwing member 40 is rotatably and movably connected to the pushing member 30. When the screwing member 40 rotates a predetermined angle, the pushing member 30 approaches or moves away from the two lifting members 20.

[0039] It should be noted that after the profiling portion 101 completely extends into the accommodating cavity, the assembler screws the screwing member 40 and moves the screwing member 40 in the direction of the lifting member 20. Then the pushing member 30 follows and moves in the direction of the lifting member 20, and the two second inclined surfaces 301 are respectively attached to the two first inclined surfaces 201. With further screwing of the screwing member 40, the two lifting members 20 move in opposite directions and extend out of the lifting channel 1012 and are engaged with the corresponding card slots. It should be pointed out that at this time, the elastic member 50 is in a compressed state. On the contrary, the assembler can screw the screwing member 40 in the reverse direction to move the pushing member 30 away from the lifting member 20, so as to retract the lifting member 20 into the lifting channel 1012.

[0040] Further, to achieve the rotatable and movable connection between the screwing member 40 and the pushing member 30, as Figure 6As shown, the end of the pushing member 30 close to the screwing member 40 has a hemispherical cylindrical cavity 302 and two anti-slip members 303, and the end of the screwing member 40 close to the pushing member 30 has a ball end 401. When the ball end 401 extends into the hemispherical cylindrical cavity 302, the two anti-slip members 303 are fixedly connected to the pushing member 30 and make the cavity opening of the hemispherical cylindrical cavity 302 have a constricted arrangement, and its fixed connection method includes but is not limited to welding.

[0041] Furthermore, in order to realize that when the screwing member 40 moves toward the lifting member 20, sufficient force is provided to the pushing member 30, such as Figure 6 As shown, one end of the screwing member 40 provided with the ball end 401 also has a plurality of abutting protrusions 402 , and the abutting protrusions 402 are in contact with the end surface of the pushing member 30 close to the screwing member 40 .

[0042] Furthermore, if Figure 4 As shown, the end of the screwing part 40 away from the ball head end 401 has a screwing groove 403, and the screwing groove 403 includes but is not limited to a slot, a cross slot or a hexagonal slot. During assembly, the assembler passes one end of the corresponding tool through the through hole and extends it into the screwing groove 403, and drives the screwing part 40 to rotate circumferentially by rotating the corresponding tool.

[0043] Furthermore, in order to realize the welding of the tooth seat and the external bucket body, as Figure 2 As shown, the end of the tooth holder body 10 away from the contoured portion 101 has a clamping groove 102, and the shovel plate of the external bucket body extends into the clamping groove 102, and then the tooth holder body 10 is welded to the external bucket body by welding.

[0044] In summary, the tooth holder with high stability for bucket teeth based on the embodiment of the present application is explained, which provides the tooth holder with high stability for bucket teeth with advantages such as better stability when the profiling portion is not completely in contact with the wall of the accommodating cavity.

[0045] It is worth mentioning that in the embodiment of the present application, the tooth holder with high stability for bucket teeth has a simple structure, does not involve complex manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for manufacturers, the tooth holder with high stability for bucket teeth provided by the present application is easy to produce and has low cost, which is more conducive to controlling production costs and further conducive to product promotion and use.

[0046] Those skilled in the art should understand that the embodiments of the present utility model described above and shown in the accompanying drawings are only examples and do not limit the present utility model. The object of the present utility model has been fully and effectively achieved. The functions and structural principles of the present utility model have been demonstrated and explained in the embodiments, and without departing from this principle, any deformation or modification of the implementation manner of the present utility model is possible.

Claims

1. A tooth holder with high stability for bucket teeth, connected to the bucket teeth, one end of the bucket teeth having a receiving cavity, characterized in that: The upper and lower walls of the accommodating cavity are both provided with a plurality of slots; The highly stable tooth adapter for bucket teeth comprises A gear seat body, one end of which has a profiling portion, the profiling portion extends into the accommodating cavity, and a plurality of lifting members are provided on the profiling portion in a height direction so as to be liftable. When the profiling portion extends into the accommodating cavity and the outer surface of the profiling portion is in contact with the cavity wall of the accommodating cavity, a lifting member is clamped in each of the clamping grooves.

2. The tooth adapter with high stability for bucket teeth according to claim 1, characterized in that: The side wall of the profiling part has a plurality of trigger channels, and the top wall of the profiling part has a plurality of lifting channels. The lifting channels extend from the top wall of the profiling part to the bottom wall of the profiling part. The trigger channels correspond to the lifting channels one by one, and each of the trigger channels is connected to the corresponding lifting channel. Two lifting members are arranged in each of the lifting channels, and a pushing member is arranged in each of the trigger channels. When the pushing member is actuated, the two lifting members move away from or towards each other.

3. The tooth adapter with high stability for bucket teeth according to claim 2, characterized in that: Each end of the two lifting members in each lifting channel that are close to each other has a first inclined surface, and the angle between the two inclined surfaces is an acute angle. The end of the pushing member close to the lifting member has two symmetrically arranged second inclined surfaces, and the inclination of each second inclined surface is equal to the inclination of the corresponding first inclined surface. When the end of the pushing member having the second inclined surface moves from one side of the two lifting members close to the trigger channel to the other side of the lifting member, each second inclined surface is in contact with the corresponding first inclined surface, and the two lifting members are caused to move away from each other and extend out a predetermined distance from both ends of the lifting channel.

4. The tooth holder with high stability for bucket teeth according to claim 3, characterized in that: One side wall of the accommodating cavity has a plurality of through holes, and the through holes are connected to the card slot. The trigger channel includes a rectangular cavity and a threaded hole. The two ends of the rectangular cavity are respectively connected to the lifting channel and the threaded hole. A pushing member is provided in each of the rectangular cavities. The tooth seat with high stability for the bucket teeth also includes a plurality of screwing members. A screwing member is threadedly connected in each of the threaded holes. The screwing member is rotatably and movably connected to the pushing member. When the screwing member rotates a predetermined angle, the pushing member approaches or moves away from the two lifting members.

5. The tooth adapter with high stability for bucket teeth according to claim 4, characterized in that: The pushing member has a semi-spherical cylindrical cavity and two anti-slip parts at one end close to the screwing member, and the screwing member has a ball end at one end close to the pushing member. When the ball end is extended into the semi-spherical cylindrical cavity, the two anti-slip parts are fixedly connected to the pushing member and make the cavity opening of the semi-spherical cylindrical cavity have a contracted arrangement.

6. The tooth adapter with high stability for bucket teeth according to claim 5, characterized in that: The end of the screwing member provided with the ball head end also has a plurality of abutting protrusions, and the abutting protrusions are in contact with the end surface of the pushing member close to the screwing member.

7. The tooth adapter with high stability for bucket teeth according to claim 6, characterized in that: The end of the screwing member away from the ball end is provided with a screwing groove.

8. The tooth adapter with high stability for bucket teeth according to any one of claims 1 to 7, characterized in that: The end of the tooth seat body away from the contoured portion has a clamping groove.

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