Rod of tool for engaging hammer within housing of hammer
By using multiple replaceable rods in the housing of the hydraulic hammer, the problem of premature replacement of bushing due to uneven wear is solved, and a more efficient material utilization and maintenance process is achieved.
Patent Information
- Application Number
- CN202380067452.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-30
- Filing Date
- 2023-08-21
- Publication Date
- 2025-04-25
AI Technical Summary
The bushing of the hydraulic hammer is replaced prematurely due to uneven wear, and made of large-sized metal parts leads to waste of materials and difficulty in repairing and replacing them.
Replace traditional bushings with multiple rods, which can be arranged circumferentially around the tool in the housing and distribute wear to multiple rods as the tool moves, allowing each rod to be replaced individually.
Extend the service life of the rod, reduce material waste, simplify the repair and replacement process, and reduce operating costs.
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Figure CN119895099A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates generally to a hammer for a machine and, for example, to a rod engaging a tool disposed in a housing of the hammer. Background Art
[0002] The hydraulic hammer may be attached to a work machine, such as an excavator, a wheel loader, and / or a backhoe, among other examples. The hydraulic hammer may be configured to perform various operations, such as breaking concrete and / or breaking rock, among other examples. The hydraulic hammer may perform various operations due to the flow of hydraulic fluid from the work machine.
[0003] Typically, a hydraulic hammer includes a housing that receives a tool and two cylindrical bushings (in the housing) that receive the tool. When the tool is used to perform the various operations described above, movement of the tool and / or vibration of the tool causes the bushings to experience wear. Typically, the bushings experience uneven wear. For example, a small portion of the bushing (e.g., a bottom portion) may experience a large amount of wear, while the remaining portion of the bushing may experience a negligible amount to no amount of wear. In this regard, the bushing may be replaced when the amount of wear on the small portion meets a wear threshold, even though the remaining portion of the bushing experiences a negligible amount to no amount of wear.
[0004] In addition to being subject to uneven wear and premature replacement, the bushing is made of a piece of metal (of large size) that is machined to produce the desired shape and desired size of the bushing. Since the metal piece is machined to produce the desired shape and desired size, a large amount of metal is removed and therefore wasted. In addition to wasting a large amount of metal, the bushing is also of very large size and very heavy. Therefore, such very large size and weight render the maintenance and replacement of the bushing a difficult task.
[0005] Korean Patent Application Publication No. KR20100006437U ('437 Publication) discloses an arc-shaped rod support that prevents the left-right flow of the rod generated when the rod hits. The arc-shaped rod support of the '437 Publication does not solve the problems associated with the bushing as explained above.
[0006] The hammer of the present disclosure solves one or more of the problems set forth above and / or other problems in the art. Summary of the invention
[0007] In some embodiments, a hydraulic hammer includes a housing configured to receive a housing portion of a tool; a first plurality of rods disposed in the housing, wherein the first plurality of rods are configured to engage a first portion of the housing portion of the tool, and wherein the first plurality of rods are parallel to a longitudinal axis of the tool; and a second plurality of rods disposed in the housing, wherein the second plurality of rods are configured to engage a second portion of the housing portion of the tool, and wherein the second plurality of rods are parallel to the longitudinal axis of the tool.
[0008] In some embodiments, a machine includes a machine body; a boom supported by the machine body; a stick mounted to the boom; and a hydraulic hammer mounted to the stick, wherein the hydraulic hammer includes: a housing configured to receive a tool, a first plurality of rods disposed in the housing, wherein the first plurality of rods are configured to engage a first portion of the tool, and a second plurality of rods disposed in the housing, wherein the second plurality of rods are configured to engage a second portion of the tool.
[0009] In some embodiments, a housing of a hammer for a machine includes a first plurality of rods, wherein the first plurality of rods are configured to engage a first portion of a housing portion of a tool; and a second plurality of rods, wherein the second plurality of rods are configured to engage a second portion of the housing portion of the tool, and wherein the second portion is below the first portion. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 is a diagram of an exemplary machine described herein.
[0011] Figure 2 is a diagram of a perspective view of an exemplary hammer described herein.
[0012] Figure 3 is a diagram of a cross-sectional view of an exemplary hammer described herein. DETAILED DESCRIPTION
[0013] Embodiments described herein relate to replacing a bushing typically included in a hammer housing with a plurality of rods. The plurality of rods may engage a tool received by the housing. The plurality of rods may be disposed circumferentially around the tool in the housing. In some cases, the plurality of rods may provide a guide surface for guiding the tool when the tool is received by the housing.
[0014] The plurality of rods can be configured to distribute the wear caused by the movement of the tool to the plurality of rods. When the amount of wear of the rods meets a wear threshold (e.g., when the amount of wear reaches a wear limit), each of the plurality of rods can be replaced individually. In some examples, the plurality of rods can be inserted into the housing via an opening in a portion of the housing (e.g., via an opening in a front head of the housing).
[0015] In some cases, the tool may include a plurality of grooves. In this regard, each of the plurality of rods may engage with a corresponding groove in the plurality of grooves. In some embodiments, the housing may include a first plurality of rods and a second plurality of rods.
[0016] In some examples, the size, shape, and / or weight of two or more of the first plurality of rods may be the same. Thus, the two or more rods may be configured to replace each other. Similarly, the size, shape, and / or weight of two or more of the second plurality of rods may be the same. Thus, the two or more rods (of the second plurality of rods) may be configured to replace each other. In addition, at least one rod (of the first plurality of rods) and at least one rod (of the second plurality of rods) may be configured to replace each other.
[0017] One or more of the first plurality of rods may be rotatably disposed in the housing such that the one or more rods are configured to rotate due to movement of the tool. Based on the one or more rods rotating during movement of the tool, the amount of wear experienced by the rods may be distributed to multiple portions of the rod (as opposed to a single small bottom portion of the rod). Additionally, the cylindrical shape of the rods may enable less material to be removed from the metal piece (during a manufacturing process to produce the rods) than the amount of material removed from the metal piece during a manufacturing process to produce the bushing.
[0018] The term "machine" may refer to a device that performs operations associated with an industry such as mining, construction, agriculture, transportation, or another industry. In addition, one or more implements may be connected to the machine. As an example, the machine may include an engineering vehicle, a work vehicle, or the like associated with the above industries.
[0019] Figure 1 FIG. 1 is a diagram of an exemplary machine 100 described herein. Figure 1 As shown in FIG, machine 100 is embodied as an earth moving machine, such as an excavator. Alternatively, machine 100 may be another type of machine, such as a bulldozer.
[0020] like Figure 1 As shown in FIG. 1 , machine 100 includes ground engaging members 110, a machine body 115, and an operator compartment 120. Ground engaging members 110 may include tracks (such as a crawler) for propelling machine 100. Figure 1), wheels, rollers and / or the like. Ground engaging members 110 are mounted to a rotating frame (not shown) and are driven by one or more engines and drive trains (not shown). A machine body 115 is mounted on a rotating frame (not shown). An operator compartment 120 is supported by the machine body 115 mounted on the rotating frame. The operator compartment 120 includes an integrated display (not shown) and operator controls 125, such as an integrated joystick. The operator controls 125 may include one or more input components. In some examples, the controller may provide a notification indicating that the machine has transitioned from operating in a first lifting mode to operating in a second lifting mode.
[0021] For an autonomous machine, the operator controls 125 may not be designed for use by an operator, but may be designed to be operated independently of an operator. In this case, for example, the operator controls 125 may include one or more input components that provide input signals for use by another component without any operator input. The machine 100 may include a rotating member (not shown) that enables the rotating frame (and the machine body 115) to rotate (or turn). For example, the rotating member may enable the rotating frame (and the machine body 115) to rotate (or turn) relative to the ground engaging member 110.
[0022] like Figure 1 As shown in , the machine 100 includes a boom 130, a stick 135, and a hammer 140. The boom 130 is pivotally mounted to the machine body 115 at its proximal end and is articulated relative to the machine body 115 by one or more fluid-actuated cylinders (e.g., hydraulic cylinders or pneumatic cylinders), electric motors, and / or other electromechanical components. The stick 135 is pivotally mounted at the distal end of the boom 130 and is articulated relative to the boom 130 by one or more fluid-actuated cylinders, electric motors, and / or other electromechanical components. The boom 130 and / or the stick 135 may be referred to as a linkage. The hammer 140 is mounted at the distal end of the stick 135 and may be articulated relative to the stick 135 by one or more fluid-actuated cylinders, electric motors, and / or other electromechanical components.
[0023] As an example, a hydraulic pump (not shown) can be configured to provide hydraulic fluid (e.g., pressurized hydraulic fluid) to cause one or more hydraulic cylinders 150 to articulate the boom 130, the stick 135, and / or the hammer 140, as described above. In this regard, the hammer 140 can be referred to as a hydraulic hammer. The hammer 140 can include a tool 145. A hydraulic supply system (associated with the hydraulic pump) can drive the hammer 140 to provide a reciprocating impact motion to the tool 145.
[0024] Based on the reciprocating impact motion, tool 145 can perform various operations, such as breaking concrete, breaking rock, and / or chiseling slag from a foundry pot, among other examples. For example, tool 145 can be actuated to generate a periodic vibratory motion of sufficient intensity to perform the various operations described above. Figure 1 As shown in , as an example, the tool 145 may include a drill bit. Alternatively, the tool 145 may include other components configured to interact with the hammer 140 to perform the various actions discussed above.
[0025] The housing of hammer 140 may include a plurality of rods configured to guide tool 145 when tool 145 is received by the housing and to engage tool 145 in the housing after tool 145 has been received. Figure 2 and Figure 3 The housing and the plurality of rods are described in more detail.
[0026] like Figure 1 As shown in FIG. 1 , the machine 100 includes a controller 155 (e.g., an electronic control module (ECM), a computer vision controller, an autonomous controller, and other examples) and one or more inertial measurement units (IMUs) 160 (referred to herein individually as “IMU 150 ” and collectively as “IMU 160 ”). The controller 155 may control and / or monitor the operation of the machine 100 .
[0027] like Figure 1 As shown in , the IMU 160 is mounted at various locations on components or portions of the machine 100, for example, on the machine body 115, the boom 130, the stick 135, and the hammer 140. The IMU 160 includes one or more devices that are capable of receiving, generating, storing, processing, and / or providing signals indicative of the position and orientation of the component of the machine 100 on which the IMU 160 is mounted. Although the examples discussed herein relate to the IMU 160, the present disclosure is applicable to the use of one or more other types of sensor devices that can be used to determine the position and orientation of the components of the machine 100.
[0028] As mentioned above, providing Figure 1 As an example. Other examples may be combined with Figure 1 Described differently.
[0029] Figure 2 FIG. 200 is a perspective view of an exemplary hammer as described herein. Figure 2 As shown in FIG, an exemplary hammer is hammer 140. Figure 2As shown in , hammer 140 may include tool 145, housing 210, first plurality of rods 220, second plurality of rods 230, tool stop member 260, and retaining member 270. Housing 210 may include metal, polymer, and / or plastic materials, among other examples. Housing 210 may be configured to receive a portion of tool 145. For example, housing 210 may be configured to receive housing portion 240 of tool 145. Exposed portion 250 of tool 145 may be external relative to housing 210.
[0030] The distance between the housing portion 240 and the working end 290 of the tool 145 may exceed the distance between the exposed portion 250 and the working end 290. In some cases, depending on the orientation of the hammer 140, the housing portion 240 may be the top portion of the tool 145 and the exposed portion 250 may be the bottom portion of the tool 145. For example, when the hammer 140 is positioned as Figure 2 When in the vertical position shown in , the housing portion 240 can be a top portion disposed above a bottom portion of the tool 145 (eg, disposed above the exposed portion 250 ).
[0031] Housing 210 may include a power unit (not shown) and a piston (not shown). The power unit may utilize a fluid (e.g., hydraulic and / or pneumatic fluid) to reciprocately impact the piston against the upper end of housing portion 240 to drive tool 145 to perform various operations discussed herein.
[0032] like Figure 2 As shown in , the housing 210 may also include a first plurality of rods 220, a second plurality of rods 230, a tool stop member 260, and a retaining member 270. The first plurality of rods 220 may be configured to engage a first portion of the housing portion 240 of the tool 145. Figure 2 As shown in FIG. 2 , the first plurality of rods 220 can be parallel to the longitudinal axis 280 of the tool 145. When the tool 145 is received by the housing 210, the first plurality of rods 220 can be disposed circumferentially around the tool 145.
[0033] In some examples, two or more of the rods in the first plurality of rods 220 can be the same size, weight, and / or shape. For example, the length of a first rod (in the first plurality of rods 220) can be the same as the length of a second rod (in the first plurality of rods 220), the width of the first rod can be the same as the width of the second rod, the diameter of the first rod can be the same as the diameter of the second rod, the weight of the first rod can be the same as the weight of the second rod, and / or the shape of the first rod can be the same as the shape of the second rod. Thus, the first rod and the second rod can be configured to replace each other.
[0034] The rods in the first plurality of rods 220 may include steel. Additionally or alternatively, the rods may include brass, carbide, and / or non-metallic materials. In some embodiments, the rods may have a diameter of approximately 53 mm, a length of approximately 300 mm, and a weight of approximately 5 kg.
[0035] In some examples, the first plurality of rods 220 can be rotatably disposed in the housing 210. For example, one or more of the first plurality of rods 220 can be configured to rotate during movement of the tool 145 (e.g., during operation of the tool 145). By rotating in this manner, the amount of wear on the rod can be distributed to multiple portions of the rod compared to a single portion of the rod being subject to wear. By distributing the amount of wear to multiple portions, the life of the rod can be extended. Therefore, the rod can be replaced less prematurely.
[0036] like Figure 2 As shown in FIG. 1 , the second plurality of rods 230 can be configured to engage a second portion of a housing portion 240 of the tool 145. The second portion of the housing portion 240 can be opposite the first portion of the housing portion 240. Figure 2 As shown in FIG. 2 , the second plurality of rods 230 can be parallel to the longitudinal axis 280 of the tool 145. When the tool 145 is received by the housing 210, the second plurality of rods 230 can be disposed circumferentially around the tool 145.
[0037] In some examples, two or more of the rods in the second plurality of rods 230 may be the same size, weight, and / or shape. For example, the length of a third rod (in the second plurality of rods 230) may be the same as the length of a fourth rod (in the second plurality of rods 230), the width of the third rod may be the same as the width of the fourth rod, the diameter of the third rod may be the same as the diameter of the fourth rod, the weight of the third rod may be the same as the weight of the fourth rod, and / or the shape of the third rod may be the same as the shape of the fourth rod. Thus, the third rod and the fourth rod may be configured to replace each other.
[0038] Similarly, the size, weight, and / or shape of one or more first rods in the first plurality of rods 220 can be the same as the size, weight, and / or shape of one or more second rods in the second plurality of rods 230. Thus, the one or more first rods and the one or more second rods can be configured to replace each other. For example, the first rod and the third rod can be configured to replace each other.
[0039] In some examples, the second plurality of rods 230 can be rotatably disposed in the housing 210. For example, one or more rods in the second plurality of rods 230 can be configured to rotate during movement of the tool 145 (e.g., during operation of the tool 145). By rotating in this manner, the amount of wear on the rod can be distributed to multiple portions of the rod, as explained above in conjunction with the first plurality of rods 220.
[0040] In some embodiments, the number of the second plurality of rods 230 is equal to the number of the first plurality of rods 220. In some embodiments, the housing 210 can include a single plurality of rods. For example, the housing 210 can include the second plurality of rods 230 without the first plurality of rods 220. Alternatively, the housing 210 can include the first plurality of rods 220 without the second plurality of rods 230.
[0041] like Figure 2 As shown in , the tool stop member 260 can be disposed between the first plurality of rods 220 and the second plurality of rods 230. The tool stop member 260 can include metal, polymer, and / or plastic materials, among other examples. In some cases, the tool stop member 260 can be configured to limit movement of the tool 145 along the longitudinal axis 280 in a direction toward the first plurality of rods 220. For example, when the hammer 140 is disposed as shown in FIG. Figure 2 , the movement may be an upward movement and the direction may be in an upward direction. By preventing movement of the tool 145 in this manner, the tool stop member 260 may prevent damage to components of the hammer 140 and / or the machine 100, such as the boom 130 and / or the stick 135, among other examples.
[0042] The tool stop member 260 may be disposed adjacent to the first end of the second plurality of rods 230. Figure 2 As shown in , the retaining member 270 can be disposed adjacent to a second end of the second plurality of rods 230 opposite the first end. The retaining member 270 can include metal, polymer, and / or plastic materials, among other examples. In some cases, the retaining member 270 can be configured to limit movement of the tool 145 that could cause the tool 145 to be removed from the housing 210 (e.g., limit movement of the tool 145 that could cause the tool 145 to fall / drop from the housing 210). By preventing movement of the tool 145 in this manner, the retaining member 270 can prevent damage to components of the machine 100.
[0043] As mentioned above, providing Figure 2 As an example. Other examples may be combined with Figure 2 Described differently.
[0044] Figure 3 FIG. 300 is a cross-sectional view of an exemplary hammer as described herein. Figure 3 As shown in FIG. 1 , an exemplary hammer is hammer 140. Some elements of hammer 140 have been described above in conjunction with Figure 2 In some examples, the first plurality of rods 220 can be aligned with the second plurality of rods 230. For example, Figure 3 As shown in , a first rod 220 - 1 of the first plurality of rods 220 may be longitudinally aligned with a second rod 230 - 1 of the second plurality of rods 230 .
[0045] like Figure 3 , a first portion of the housing portion 240 of the tool 145 includes a first plurality of grooves 310. A second portion of the housing portion 240 of the tool 145 includes a second plurality of grooves 320. In some embodiments, the number of the first plurality of grooves 310 can be equal to the number of the first plurality of rods 220. Additionally or alternatively, the number of the second plurality of grooves 320 can be equal to the number of the second plurality of rods 230.
[0046] In some embodiments, one or more of the first plurality of rods 220 can be configured to engage with corresponding one or more grooves in the first plurality of grooves 310. Additionally or alternatively, one or more of the second plurality of rods 230 can be configured to engage with corresponding one or more grooves in the second plurality of grooves 320. In some examples, one or more of the first plurality of rods 220 can have the same shape as corresponding grooves in the first plurality of grooves 310. Additionally or alternatively, one or more of the second plurality of rods 230 can have the same shape as corresponding grooves in the second plurality of grooves 320.
[0047] As mentioned above, providing Figure 3 As an example. Other examples may be combined with Figure 3 Described differently.
[0048] Industrial Applicability
[0049] Embodiments described herein relate to replacing bushings typically included in a hammer housing with multiple rods. Typically, bushings are subject to uneven wear. The uneven wear causes the bushings to be replaced prematurely. In addition to being subject to uneven wear and premature replacement, a large amount of material is wasted during the manufacturing process of the bushings. Additionally, bushings are of very large size and very heavy. Thus, such very large size and weight render the maintenance and replacement of bushings a difficult task.
[0050] According to embodiments described herein, a plurality of rods may be arranged circumferentially around the tool in the housing. In this regard, the plurality of rods may distribute wear to several rods. By distributing wear, the plurality of rods may distribute contact pressure to several rods and thus reduce the wear experienced by a single rod.
[0051] In addition, the weight, size, and / or shape of the plurality of rods can be the same. Therefore, the plurality of rods can be configured to replace each other. In addition, the size and weight of the plurality of rods can facilitate the maintenance and replacement of the plurality of rods.
[0052] Furthermore, each rod can be replaced individually when the amount of wear on the rod meets a wear threshold. By replacing each rod individually, the embodiments described herein can reduce the overall operating costs associated with the hammer. Furthermore, the multiple rods also provide torsional resistance, which is typically controlled in a typical hammer by providing additional pins.
[0053] As explained above, the cylindrical shape of the rod (described herein) can enable a smaller amount of material to be removed from the metal piece than during the manufacturing process used to produce the bushing. Therefore, the manufacturing process used to produce the rod can be more efficient than the manufacturing process used to produce the bushing.
[0054] The foregoing disclosure provides illustrations and descriptions, but is not intended to be exhaustive or to limit the embodiments to the precise forms disclosed. Modifications and changes may be made in light of the foregoing disclosure or may be acquired from practice of the embodiments. In addition, any embodiments described herein may be combined, unless the foregoing disclosure explicitly provides reasons why one or more embodiments cannot be combined. Even though specific combinations of features are listed in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the various embodiments. Although each dependent claim listed below may be directly dependent on only one claim, the disclosure of the various embodiments includes each dependent claim in combination with each other claim in the claim set.
[0055] As used herein, "a, an" and "group" are intended to include one or more items and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more items quoted in conjunction with the article "the", and can be used interchangeably with "the one or more". In addition, the phrase "based on" is intended to mean "based at least in part on", unless otherwise explicitly stated. In addition, as used herein, the term "or" is intended to be inclusive when used in a series form, and can be used interchangeably with "and / or", unless otherwise explicitly stated (for example, if used in combination with "either" or "only one"). In addition, for ease of description, spatial relative terms such as "below", "below", "above", "on", etc. can be used herein to describe the relationship between an element or feature and another one or more elements or features, as shown in the figure. In addition to the orientation shown in the drawings, spatial relative terms are intended to cover different orientations of equipment, devices and / or elements in use or operation. Equipment can be oriented in other ways (rotated 90 degrees or in other orientations), and similarly, the spatial relative descriptors used herein can be interpreted accordingly.
Claims
1. A machine (100), comprising: Machine body (115); a boom (130) supported by the machine body (115); A boom (135) mounted to the boom (130); and a hydraulic hammer (140) mounted to the boom (135), The hydraulic hammer (140) comprises: a housing (210) configured to receive a tool (145), a first plurality of rods (220) disposed in the housing (210), wherein the first plurality of rods (220) are configured to engage a first portion of the tool (145), and a second plurality of rods (230) disposed in the housing (210), Wherein the second plurality of rods (230) are configured to engage a second portion of the tool (145).
2. The machine (100) according to claim 1, wherein: The first portion of the tool (145) includes a first plurality of grooves (310), wherein the second portion of the tool (145) includes a second plurality of grooves (320), wherein the number of the first plurality of grooves (310) is equal to the number of the first plurality of rods (220), and The number of the second plurality of grooves (320) is equal to the number of the second plurality of rods (230).
3. The machine (100) according to claim 2, wherein: Each rod of the first plurality of rods (220) is configured to engage a corresponding groove of the first plurality of grooves (310), and Wherein each rod of the second plurality of rods (230) is configured to engage with a corresponding groove of the second plurality of grooves (320).
4. The machine (100) according to any one of claims 1 to 3, wherein: The length of a first rod (220-1) in the first plurality of rods (220) is equal to the length of a second rod (230-1) in the first plurality of rods (220), wherein the width of the first rod (220-1) is equal to the width of the second rod (230-1), and The shape of the first rod (220-1) is the same as the shape of the second rod (230-1).
5. The machine (100) according to any one of claims 1 to 4, wherein: The length of a first rod (220-1) in the first plurality of rods (220) is equal to the length of a second rod (230-1) in the second plurality of rods (230), wherein the width of the first rod (220-1) is equal to the width of the second rod (230-1), and The shape of the first rod (220-1) is the same as the shape of the second rod (230-1).
6. The machine (100) according to any one of claims 1 to 5, wherein: The second plurality of rods (230) are rotatably disposed in the housing (210), and One or more of the second plurality of rods (230) are configured to rotate during movement of the tool (145).
7. The machine (100) according to any one of claims 1 to 6, wherein: A first rod (220-1) of the first plurality of rods (220) is longitudinally aligned with a second rod (230-1) of the second plurality of rods (230).
8. A housing (210) of a hammer (140) of a machine (100), the housing (210) comprising: a first plurality of rods (220), wherein the first plurality of rods (220) are configured to engage a first portion of a housing portion (240) of a tool (145); as well as a second plurality of rods (230), wherein the second plurality of rods (230) are configured to engage a second portion of a housing portion (240) of the tool (145), and The second part is below the first part.
9. The housing (210) according to claim 8, wherein: The first plurality of rods (220) are parallel to a longitudinal axis (280) of the tool (145), and Wherein the second plurality of rods (230) are parallel to a longitudinal axis (280) of the tool (145).
10. The housing (210) according to any one of claims 8 and 9, wherein: The first plurality of rods (220) are rotatably disposed in the housing (210), wherein the second plurality of rods (230) are rotatably disposed in the housing (210), and One or more rods of at least one of the first plurality of rods (220) or the second plurality of rods (230) are configured to rotate during movement of the tool (145).
11. The housing (210) according to any one of claims 8 to 10, wherein: A size of a first rod (220-1) of the first plurality of rods (220) is equal to at least one of a size of a second rod (230-1) of the first plurality of rods (220) or a size of a third rod (220) of the first plurality of rods (220).
12. The housing (210) according to any one of claims 8 to 11, wherein: The first portion of the housing portion (240) of the tool (145) includes a first plurality of grooves (310), wherein the second portion of the housing portion (240) of the tool (145) includes a second plurality of grooves (320), wherein each of the first plurality of rods (220) is configured to engage with a corresponding groove of the first plurality of grooves (310), and Wherein each rod of the second plurality of rods (230) is configured to engage with a corresponding groove of the second plurality of grooves (320).
13. The housing (210) according to any one of claims 8 to 12, wherein: A first rod (220-1) of the first plurality of rods (220) is longitudinally aligned with a second rod (230-1) of the second plurality of rods (230).
Citation Information
Patent Citations
An Apparatus for prevent reduced gap of Breaker
KR2020100006437U