Knife group of wall breaking machine

Abstract

The utility model relates to a knife tackle of a wall breaking machine. The knife tackle comprises a knife shaft, the blade is arranged on the cutter shaft; the rotary supporting assembly is arranged on the cutter shaft in a sleeving manner; the welding tool apron comprises a tool apron cover and a shaft sleeve which are connected into a whole; the cutter shaft is sleeved with the cutter holder cover, and the cutter holder cover is perpendicular to the cutter shaft. The shaft sleeve is vertical to the cutter holder cover and is sleeved on the cutter shaft; the knife rest is formed and arranged on the shaft sleeve; wherein a gap is formed between the shaft sleeve and the cutter shaft, and the rotary supporting assembly is arranged in the gap. According to the utility model, the shaft sleeve is directly connected with the tool apron cover, so that the assembly error between the shaft sleeve and the tool apron cover is avoided, the installation is simplified, and the position of the rotary supporting assembly is better limited. At the moment, the tool apron cover is not only supported by the tool shaft, but also fixed by the connected shaft sleeve, and the shaft sleeve is fixed by the rotary supporting assembly and the tool rest, so that the stability of the tool apron cover is guaranteed, and the structural stability of the tool set is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of wall breakers, in particular to a cutter set of a wall breaker. Background Art

[0002] A wall breaker is a kitchen appliance used to completely crush food materials, facilitating people to better absorb the nutrients in food and improving the utilization rate of food materials. The wall breaker plays a very important role in modern household kitchens.

[0003] The cutter set of a wall breaker is the key to crushing food materials by the wall breaker, which directly affects the working efficiency and product quality of the wall breaker. A stable cutter set of a wall breaker can ensure that the wall breaker will not shake or vibrate during high-speed operation, reducing the vibration and noise generated during the working process of the wall breaker. Therefore, a cutter set of a wall breaker with good stability is very important for the normal operation of the wall breaker and the guarantee of product quality. The cutter set of a wall breaker includes a cutter shaft and a cutter holder. The cutter shaft is fixed on the wall breaker through the cutter holder. Rotating support members such as bearings and oil seals are arranged between the cutter shaft and the cutter holder of the wall breaker, and by setting an anti-dropping cover at the top of the cutter holder, the positions of the bearings and oil seals are restricted. With such a setting, the limiting of rotating support members such as bearings and oil seals needs to be completed by the cooperation of the anti-dropping cover and the cutter holder, which requires high machining accuracy and assembly accuracy for the anti-dropping cover and the cutter holder. Moreover, the anti-dropping cover is arranged on the cutter shaft and is supported by the cutter shaft, and the contact area between the two is small, so the stability of the anti-dropping cover is difficult to guarantee, thus affecting the structural stability of the cutter set.

[0004] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0005] Aiming at the above-mentioned shortcomings of the prior art, the purpose of the present utility model is to provide a cutter set of a wall breaker to increase the structural stability of the cutter set of the wall breaker.

[0006] The technical solution of the present utility model is as follows:

[0007] A cutter set of a wall breaker, comprising: a cutter shaft; a cutter blade arranged on the cutter shaft; a rotating support assembly sleeved on the cutter shaft; a welded cutter seat including a cutter seat cover and a shaft sleeve connected as a whole; the cutter seat cover is sleeved on the cutter shaft, and the cutter seat cover is perpendicular to the cutter shaft; the shaft sleeve is perpendicular to the cutter seat cover and sleeved on the cutter shaft; a cutter holder formed on the shaft sleeve; wherein, there is a gap between the shaft sleeve and the cutter shaft, and the rotating support assembly is arranged in the gap.

[0008] Further, a skirt is circumferentially extended along the outer edge of the cutter seat cover, and the skirt faces the side of the shaft sleeve.

[0009] A further technical solution thereof is that a clamping groove is arranged on the inner side of the tool rest, an extension part is arranged on the shaft sleeve, and the extension part extends into the clamping groove.

[0010] A further technical solution thereof is that one end of the tool rest away from the tool rest cover is bent outward to form an opening part, and an extension part on the shaft sleeve contacts the opening part.

[0011] A further technical solution thereof is that a shock-absorbing pad is further included, the shock-absorbing pad is sleeved on the tool rest, a limiting part is arranged on the tool rest in an extending manner, and the limiting part contacts one end of the shock-absorbing pad away from the tool rest cover.

[0012] A further technical solution thereof is that the rotary support assembly includes a ball bearing, and oil seals are arranged at both ends of the ball bearing along the length direction of the tool shaft.

[0013] A further technical solution thereof is that a snap ring is arranged at one end of the ball bearing away from the tool rest cover, and the snap ring is arranged on the tool shaft.

[0014] A further technical solution thereof is that the tool shaft includes a first shaft section, a second shaft section and a third shaft section, and the second shaft section is arranged between the first shaft section and the third shaft section; a first shaft shoulder is formed between the first shaft section and the second shaft section, the blade is arranged on the first shaft section, and a locking nut is further arranged on the first shaft section.

[0015] A further technical solution thereof is that a connector is arranged on the third shaft section, and a spline is arranged on the outer surface of the connector; the third shaft section and the connector are in threaded connection.

[0016] A further technical solution thereof is that a second shaft shoulder is formed between the second shaft section and the third shaft section, and the connector contacts the second shaft shoulder.

[0017] The beneficial technical effects of the present utility model are as follows:

[0018] (1) In the wall-breaking machine cutter group of the present utility model, a welded tool rest is arranged on the tool shaft, and the welded tool rest includes a shaft sleeve and a tool rest cover connecting the shaft sleeve. The rotary support assembly is arranged between the shaft sleeve and the tool shaft and is limited by the shaft sleeve and the tool rest cover. The shaft sleeve and the tool rest cover are directly connected, eliminating the assembly error between the shaft sleeve and the tool rest cover, simplifying the installation, and better limiting the position of the rotary support assembly. At this time, the tool rest cover is not only supported by the tool shaft, but also the position of the tool rest cover is fixed by the connected shaft sleeve, and the shaft sleeve is fixed by the rotary support assembly and the tool rest, that is, the stability of the tool rest cover is ensured, and further the stability of the structure of the cutter group is ensured.

[0019] (2) Further, a skirt is circumferentially provided on the outer edge of the tool holder cover. After the tool rest is sleeved on the welded tool holder, the skirt contacts the outer side of the tool rest to enhance the connection stability between the tool rest and the welded tool holder.

[0020] (3) Further, a shock-absorbing pad is also provided. The shock-absorbing pad is sleeved on the tool rest, and the shock-absorbing pad absorbs the impact generated during the rotation of the tool shaft, reducing the vibration and noise generated by the wall breaker during operation. Description of the Drawings

[0021] Figure 1 Shows a cross-sectional structural schematic diagram of the wall breaker cutter group in the first embodiment of the present invention.

[0022] Figure 2 Shows an exploded structural schematic diagram of the wall breaker cutter group in the first embodiment of the present invention.

[0023] Figure 3 Shows a cross-sectional structural schematic diagram of the wall breaker cutter group in the second embodiment of the present invention.

[0024] Reference numerals in the drawings:

[0025] 1. Tool shaft; 11. First shaft section; 12. First shaft shoulder; 13. Second shaft section; 14. Second shaft shoulder; 15. Third shaft section; 16. Card slot; 2. Rotating support assembly; 21. Oil seal; 22. Ball bearing; 23. Snap ring; 3. Welded tool holder; 31. Tool holder cover; 32. Skirt; 33. Bush; 34. Extension; 4. Tool rest; 41. Clamping groove; 42. Opening part; 5. Shock-absorbing pad; 6. Blade; 7. Locking nut; 8. Connector; 81. Spline; 9. Wall breaker body. Detailed Embodiments

[0026] In order to make the objectives, features, and advantages of the present invention more obvious and understandable, please refer to the drawings. It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have any technical substance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the objectives that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0027] In the description of the present utility model, the defined terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0028] Embodiment 1

[0029] Figure 1 Fig. shows a schematic cross-sectional structure diagram of the knife set of the wall breaker in Embodiment 1 of the present utility model. Figure 2 Fig. shows an exploded structure diagram of the knife set of the wall breaker in Embodiment 1 of the present utility model. Please refer to Figure 1 and Figure 2 A knife set of a wall breaker includes a knife shaft 1, a blade 6, a rotating support assembly 2, and a knife holder 4. The blade 6 is arranged on the knife shaft 1. The rotating support assembly 2 is sleeved on the knife shaft 1. The welded knife seat 3 includes a knife seat cover 31 and a shaft sleeve 33 connected as a whole, and the knife seat cover 31 and the shaft sleeve 33 are welded. The knife seat cover 31 is sleeved on the knife shaft 1, and the knife seat cover 31 is perpendicular to the knife shaft 1. The shaft sleeve 33 is perpendicular to the knife seat cover 31 and sleeved on the knife shaft 1. The welded knife seat 3 is provided with a through hole for the knife shaft 1 to pass through, and the through hole penetrates the knife seat cover 31 and the shaft sleeve 33. The through hole is a high-precision hole, which ensures the assembly accuracy between the knife seat cover 31 and the rotating support assembly 2, and improves the stability and reliability of the product. The knife holder 4 is integrally formed on the shaft sleeve 33. Among them, there is a gap between the shaft sleeve 33 and the knife shaft 1, and the rotating support assembly 2 is arranged in the gap and is limited by the shaft sleeve 33 and the knife seat cover 31. The shaft sleeve 33 and the knife seat cover 31 are connected by welding, eliminating the assembly error between the shaft sleeve 33 and the knife seat cover 31, simplifying the installation, and at the same time better restricting the position of the rotating support assembly 2. At this time, the knife seat cover 31 is not only supported by the knife shaft 1, but also fixed in position by the connected shaft sleeve 33, and the shaft sleeve 33 is fixed by the rotating support assembly 2 and the knife holder 4, that is, the installation strength of the knife seat cover 31 is ensured, and the risk of the knife seat cover 31 falling off is reduced.

[0030] Among them, the knife holder 4 can be injection-molded from high-temperature-resistant plastic. When forming the knife holder 4, the welded knife seat 3 is placed in the mold and the knife holder 4 is injection-molded and coated in one step. The assembly step between the welded knife seat 3 and the knife holder 4 is eliminated.

[0031] The specific structures of the knife seat cover 31, the knife holder 4, and the shock pad 5 are described as follows:

[0032] Please refer to Figure 1, a skirt 32 is circumferentially extended along the outer edge of the tool holder cover 31, and the skirt 32 faces the side of the bushing 33. After the tool rest 4 is formed on the welded tool holder 3, the skirt 32 contacts the outside of the tool rest 4 to enhance the stability of the connection between the tool rest 4 and the welded tool holder 3. A clamping groove 41 is provided on the inner side of the tool rest 4, and an extension 34 is provided on the bushing 33. The extension 34 extends into the clamping groove 41 to further restrict the movement between the tool rest 4 and the bushing 33 and increase the stability of the connection between the tool rest 4 and the bushing 33.

[0033] The blender cutter set further includes a shock pad 5. The shock pad 5 is sleeved on the tool rest 4. A limiting portion is extended outward around the outer surface of the tool rest 4 on the tool rest 4. The limiting portion contacts one end of the shock pad 5 away from the tool holder cover 31, and the upper end of the limiting portion contacts the lower end of the shock pad 5. The limiting portion restricts the shock pad 5 from moving toward the end away from the tool holder cover 31.

[0034] The shock pad 5 is sleeved on the tool rest 4. The shock pad 5 absorbs the impact generated when the cutter shaft 1 rotates and reduces the vibration and noise generated during the operation of the blender.

[0035] Further, a plurality of protrusions are provided on the surface of the shock pad 5, so that the shock pad 5 forms an uneven surface. When the blender cutter set is installed on the blender, the uneven surface formed by the shock pad 5 contacts the blender. Compared with an ordinary flat surface, the uneven surface can provide greater friction to restrict the movement of the shock pad 5 relative to the blender and make the cutter set on the blender more stable.

[0036] The specific structure of the rotary support assembly 2 is described as follows:

[0037] Please refer to Figure 2 , the rotary support assembly 2 includes a ball bearing 22. The ball bearing 22 supports the welded tool holder 3. The ball bearing 22 includes an inner ring and an outer ring. The inner ring is connected to the cutter shaft 1, and the outer ring is connected to the welded tool holder 3. Oil seals 21 are provided at both ends of the ball bearing 22 along the length direction of the cutter shaft 1. The oil seals 21 prevent sediment, dust, water vapor, etc. from invading the ball bearing 22, and at the same time restrict the leakage of lubricating oil in the ball bearing 22.

[0038] A snap ring 23 is provided at one end of the ball bearing 22 away from the tool holder cover 31, and the snap ring 23 is provided on the cutter shaft 1. Specifically, a clamping groove 16 is opened on the cutter shaft 1, and the clamping groove 16 is opened on the cutter shaft 1 below the oil seal 21. The snap ring 23 is arranged in the clamping groove 16 to restrict the ball bearing 22 and the oil seal 21 from sliding downward along the cutter shaft 1. The snap ring 23 cooperates with the welded tool holder 3. The snap ring 23 contacts the lower surface of the lower oil seal 21 of the rotary support assembly 2, and the welded tool holder 3 contacts the upper surface of the upper oil seal 21 of the rotary support assembly 2 to limit the rotary support assembly 2 at a fixed position on the cutter shaft 1 and ensure the stability of the cutter set.

[0039] Among them, the number of ball bearings 22 is more than one. Preferably, two ball bearings 22 are provided. The two ball bearings 22 are arranged adjacent to each other, which can effectively share the force borne by a single ball bearing 22, reduce the wear of the ball bearing 22 and extend its service life. In addition, setting two ball bearings 22 at the same time can also improve the rotational smoothness and accuracy of the ball bearings 22, and increase the operating stability and reliability of the cutter group of the wall breaker.

[0040] The specific structure of the cutter shaft 1 is described as follows:

[0041] Please refer to Figure 1 , the cutter shaft 1 includes a first shaft section 11, a second shaft section 13 and a third shaft section 15, and the second shaft section 13 is arranged between the first shaft section 11 and the third shaft section 15. The welded cutter seat 3 is arranged on the second shaft section 13. A first shaft shoulder 12 is formed between the first shaft section 11 and the second shaft section 13. The blade 6 is arranged on the first shaft section 11, and a locking nut 7 is also arranged on the first shaft section 11. Specifically, the first shaft shoulder 12 contacts the body 9 of the wall breaker to position the cutter shaft 1 on the wall breaker. The locking nut 7 is screwed into the first shaft section 11. The locking nut 7 restricts the blade 6 from moving towards the end away from the first shaft shoulder 12. The locking nut 7 and the first shaft shoulder 12 cooperate to limit the blade 6 on the first shaft section 11.

[0042] Among them, multiple blades 6 can be provided. The multiple blades 6 work together to improve the chopping efficiency of the ingredients. The blade 6 can also be bent and designed in a three-dimensional manner to expand the cutting range of the blade 6 in the length direction of the cutter shaft 1.

[0043] Please refer to Figure 2 , a connector 8 is arranged on the third shaft section 15, and a spline 81 is arranged on the outer surface of the connector 8. Through the spline 81, the driving device and the cutter shaft 1 can be conveniently connected, and then the cutter shaft 1 can be driven to rotate. The third shaft section 15 and the connector 8 are threadedly connected, and the threaded connection facilitates the disassembly and assembly of the connector 8 and is convenient for replacing or maintaining the connector 8 in the later stage. A second shaft shoulder 14 is formed between the second shaft section 13 and the third shaft section 15, and the connector 8 contacts the second shaft shoulder 14. The second shaft shoulder 14 can quickly position the connector 8 on the cutter shaft 1 and facilitate the installation of the connector 8.

[0044] The specific assembly process of the present utility model is as follows:

[0045] First, the welding tool holder 3 and the tool rest 4 are sleeved on the tool shaft 1, the shock pad 5 is sleeved on the tool rest 4, and then an oil seal 21, two ball bearings 22, an oil seal 21 and a snap ring 23 are sequentially sleeved on the tool shaft 1 within the bushing 33. Then the connector 8 and the third shaft section 15 are threadedly connected, and then the tool shaft 1 is installed on the wall breaker. At this time, the first shaft section 11 extends into the interior of the wall breaker, and the first shaft shoulder 12, the tool rest 4 and the shock pad 5 contact the wall breaker. Finally, the third shaft section 15 and the drive device are connected by a spline 81, the blade 6 is arranged on the first shaft section 11, and the blade 6 is fixed by a lock nut 7. The assembly of the wall breaker tool group is completed.

[0046] Embodiment 2

[0047] Figure 3 Fig. shows a schematic cross-sectional structure diagram of the wall breaker tool group in Embodiment 2 of the present utility model. Please refer to Figure 3 , based on Embodiment 1, Embodiment 2 discloses a wall breaker tool group, the tool rest 4 of which is made of elastic rubber material, the tool rest 4 and the shock pad 5 are integrally arranged, and the separately arranged shock pad 5 is removed. At this time, the tool rest 4 absorbs the impact generated during the rotation of the tool shaft 1, reducing the vibration and noise generated during the operation of the wall breaker. The integral arrangement reduces the number of components, thereby reducing costs, simplifying the design and manufacturing process of the tool group, and reducing the failure rate of the tool group.

[0048] In addition, in this embodiment, the setting of the clamping groove 41 is cancelled. At one end of the tool rest 4 away from the tool seat cover 31, the tool rest 4 is bent outward to form an opening part 42, and the extension part 34 on the bushing 33 contacts the opening part 42. The cooperation between the extension part 34 and the opening part 42 is used to limit the movement of the tool rest 4 towards the end away from the welding tool holder 3. Since the tool rest 4 is made of elastic rubber and has low strength, and the contact area between the clamping groove 41 and the extension part 34 is small, the force received by the clamping groove 41 is large and it is easily cut by the extension part 34, affecting the service life of the tool rest 4. While the contact area between the extension part 34 and the opening part 42 is larger, the force can be dispersed, thereby reducing the damage of the extension part 34 to the tool rest 4 and extending the service life of the tool rest 4.

[0049] It can be seen that for the above-mentioned wall breaker tool group, the bushing 33 and the tool seat cover 31 are directly connected, eliminating the assembly error between the bushing 33 and the tool seat cover 31, simplifying the installation, and better restricting the position of the rotary support assembly 2. At this time, the tool seat cover 31 is not only supported by the tool shaft 1, but also the position of the tool seat cover 31 is fixed by the connected bushing 33, and the bushing 33 is fixed by the rotary support assembly 2 and the tool rest 4, that is, the stability of the tool seat cover 31 is ensured, and further the stability of the structure of the tool group is ensured.

[0050] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0051] The above embodiments only express several implementation manners of the present utility model, and the description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A wall breaking machine knife set, characterized in that: include: Knife shaft; A blade, arranged on the blade shaft; A rotating support assembly, sleeved on the knife shaft; The welded tool seat comprises a tool seat cover and a shaft sleeve connected as one body; the tool seat cover is sleeved on the tool shaft, and the tool seat cover is perpendicular to the tool shaft; the shaft sleeve is perpendicular to the tool seat cover and sleeved on the tool shaft; the tool holder is molded and arranged on the shaft sleeve; There is a gap between the bushing and the knife shaft, and the rotating support assembly is arranged in the gap.

2. The wall breaking machine blade assembly according to claim 1, characterized in that: A skirt is circumferentially extended on the outer edge of the tool seat cover, and the skirt faces one side of the shaft sleeve.

3. The wall breaking machine blade assembly according to claim 1, characterized in that: A clamping groove is arranged on the inner side of the tool holder, and an extension portion is arranged on the shaft sleeve, and the extension portion extends into the clamping groove.

4. The wall breaking machine blade assembly according to claim 1, characterized in that: One end of the tool holder away from the tool seat cover is bent outward to form an open portion, and an extension portion is provided on the shaft sleeve to contact the open portion.

5. The wall breaking machine blade assembly according to claim 1, characterized in that: A shock-absorbing pad is also included. The shock-absorbing pad is sleeved on the tool holder. A limiting portion is extended from the tool holder. The limiting portion contacts an end of the shock-absorbing pad away from the tool holder cover.

6. The wall breaking machine blade assembly according to claim 1, characterized in that: The rotary support assembly comprises a ball bearing, and oil seals are arranged at both ends of the ball bearing along the length direction of the knife shaft.

7. The wall breaking machine blade assembly according to claim 6, characterized in that: A retaining spring is arranged at one end of the ball bearing away from the knife seat cover, and the retaining spring is arranged on the knife shaft.

8. The wall breaking machine blade assembly according to claim 1, characterized in that: The knife shaft includes a first shaft section, a second shaft section and a third shaft section, the second shaft section is arranged between the first shaft section and the third shaft section; a first shaft shoulder is formed between the first shaft section and the second shaft section, the blade is arranged on the first shaft section, and a locking nut is also arranged on the first shaft section.

9. The wall breaking machine blade assembly according to claim 8, characterized in that: The third shaft segment is provided with a connector, and the outer surface of the connector is provided with a spline; the third shaft segment and the connector are threadedly connected.

10. The wall breaking machine blade assembly according to claim 9, characterized in that: A second shaft shoulder is formed between the second shaft segment and the third shaft segment, and the connecting head contacts the second shaft shoulder.

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