A gap compensation device, a work device and a working machine

Abstract

The utility model discloses a gap compensation device, working device and engineering machinery, including gasket one, gasket two, hinged part, locking part and magnetic attraction part, gasket one, gasket two butt joint form the circular ring structure, for the joint in the tool pin, hinged part installs at gasket one and gasket two butt joint one end, gasket one and gasket two can open or close around the hinge point, realize gasket one and gasket two on the pin of tool dismounting, locking part installs at gasket one and gasket two butt joint another end, and locking part is structured to fix and remove the fixing between gasket one and gasket two, magnetic attraction part installs on gasket one and gasket two, for gasket one and gasket two adsorb on the flange plate of tool. The utility model reduces the time required when excavator quick change connection tool, reduces the manual cost required for replacing tool, solves the problem that conventional adjustment gasket cannot assemble between excavator quick change and tool.

Description

Technical Field

[0001] This utility model relates to a gap compensation device, specifically a device used to compensate for the assembly gap between the excavator quick connector (hereinafter referred to as "quick connector") and the attachment, and to prevent the attachment from shifting during operation. It belongs to the field of engineering machinery technology. Background Technology

[0002] Construction machinery is increasingly widely used in various fields, with excavators being a typical example, operating under complex and varied conditions. To adapt to different working conditions and improve excavator efficiency, frequent attachment changes are often necessary. Currently, the market offers a wide variety of attachments with varying ear plate spacing. This results in different assembly clearances between the quick-change's outer end face and the attachment's flange inner face when connecting different attachments. Therefore, adjusting shims of varying thicknesses need to be installed between the attachment and the quick-change to compensate for the assembly clearance, prevent attachment wobbling during operation, and improve excavator stability.

[0003] Currently, conventional adjusting shims are mainly used to adjust the gap between the quick-change and the attachment, such as... Figure 1 and Figure 2 As shown, the boom 400 is connected to the attachment 100 via the quick-change 300. When assembling the conventional adjusting shims, the pin 200 needs to be removed. Select the appropriate size and number of adjusting shims according to the size of the gap between the attachment 100 and the quick-change 300, and place them between the two until the attachment 100 and the quick-change 300 are assembled without axial wobble. Then the pin 200 is assembled.

[0004] With the increasing use of excavators and the growing complexity of construction conditions, frequent attachment changes are sometimes necessary, leading to rising labor costs. Using conventional adjusting shims to adjust the clearance between the attachment and quick-change is overly cumbersome, typically requiring two people. First, the pin on the attachment is removed. Then, the operator uses the handle to adjust the stick and quick-change to the appropriate position. Finally, another person inserts adjusting shims between the attachment and quick-change before reinstalling the pin. This process significantly reduces the efficiency of attachment changes and increases labor and time costs.

[0005] Furthermore, because standard adjusting shims are relatively thin, multiple shims are required when the clearance between the attachment and the quick-change is too large. This accelerates shim wear and causes abnormal noises during excavator operation, affecting the user experience. For attachments with pins directly welded to the ear plates, standard adjusting shims cannot be used to adjust the clearance between the attachment and the quick-change when compensation is needed, as the pins cannot be disassembled. Summary of the Invention

[0006] To address the aforementioned problems, this utility model provides a clearance compensation device. Compared to using conventional adjusting shims to compensate for clearance and prevent attachment wobbling, this clearance compensation device eliminates the need to disassemble the pin on the attachment before connecting the quick-change to the attachment; simply adjusting the locking component allows the clearance compensation device to open and close. Furthermore, a magnet can be used to attach the clearance compensation device to the flange plate of the attachment, allowing the operator to complete the entire operation alone, significantly reducing the time required for excavator attachment changes. Simultaneously, when it is necessary to replace, add, or reduce the number of shims, simply adjusting the clearance compensation device to the open position allows for easy removal or installation from the usage location. Compared to using conventional adjusting shims to compensate for clearance, using this clearance compensation device reduces the time required for shim assembly, improving work efficiency.

[0007] This utility model is achieved according to the following technical solution: In a first aspect, this utility model provides a gap compensation device, comprising: Washer 1 and Washer 2, when joined together, form a ring structure, which is used to snap onto the pin of the attachment; A hinge component is installed at one end of the mating point of the first and second washers. The first and second washers can be opened or closed around the hinge point, so that the first and second washers can be disassembled and assembled on the pin of the attachment. A locking component is installed at the other end of the mating point of the first gasket and the second gasket, and the locking component is configured to fix and release the fixation between the first gasket and the second gasket; A magnetic suction component is installed on the first and second gaskets to attract the first and second gaskets onto the flange plate of the attachment.

[0008] In some embodiments, both gasket one and gasket two are semi-circular ring structures, and each side of the semi-circular ring structure extends outward with an ear plate; the hinge component is mounted on the two ear plates on one side, and the locking component is mounted on the two ear plates on the other side.

[0009] In some embodiments, each of the two ear plates on one side of the first and second gaskets is provided with a coaxially arranged cylindrical through hole. The hinge component is any one of a rivet, bolt and nut or a pin and cotter pin, which, after engaging with the two coaxial cylindrical through holes, hinges the first and second gaskets together.

[0010] In some embodiments, each of the two ear plates on one side of the first and second pads is provided with a groove arranged opposite to each other, and the first pad is provided with a cylindrical through hole penetrating the ear plate at the groove. The locking component includes: A connecting component one is installed in the cylindrical through hole of the gasket one; The second connecting component has one end connected to one end of the first connecting component, and the other end snapped into the groove of the second gasket; Connecting component three is installed at the other end of connecting component two, and the two work together to achieve a locking function.

[0011] In some embodiments, the first connecting component is a round rod, the second connecting component is a threaded rod, and the third connecting component is a wing nut; one end of the threaded rod is fixed to the round rod, and the threaded rod can swing around the round rod; the wing nut is installed on the part of the threaded rod that extends from the groove of the second washer, and the two form a helical pair, thereby pressing the first washer and the second washer together.

[0012] In some embodiments, the groove of the second washer has a circular step on the end face facing the wing nut. The inner diameter of the circular step is larger than the outer diameter of the wing nut. When the first washer and the second washer are in a closed state, the wing nut falls into the circular step.

[0013] In some embodiments, both the first gasket and the second gasket are provided with at least one mounting hole, and the magnetic attraction component is a magnet, which is fixed in the mounting hole.

[0014] In some embodiments, the mounting hole is a stepped through hole, and the magnet is a stepped magnet inserted into the stepped through hole; the thickness of the stepped magnet is less than the depth of the stepped through hole, so that the stepped magnet is completely embedded in the stepped through hole, and the stepped through hole has an internal thread on the inner ring wall protruding from the stepped magnet, and a nut is screwed into the internal thread to seal the stepped magnet.

[0015] Secondly, this utility model provides a working device, including a stick, a quick connector, and an attachment. The stick is connected to the attachment via the quick connector. It also includes the aforementioned gap compensation device for compensating for the gap between the quick connector and the attachment.

[0016] Thirdly, this utility model provides an engineering machinery, including the aforementioned clearance compensation device; or, including the aforementioned working device.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) Reduce the time required for excavator quick-change attachments; (2) Reduce the labor costs required for replacing attachments; (3) Solve the problem that conventional adjustment shims cannot be assembled between the excavator quick changer and the attachment (the pin is directly welded to the attachment). Attached Figure Description

[0018] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0019] In the attached diagram: Figure 1 This is a schematic diagram of a standard adjustment shim (a is one type of adjustment shim, b is another type of adjustment shim). Figure 2 A connection diagram for the existing stick, quick changer, and attachments; Attachment labels: 100, attachment; 200, pin; 300, quick change; 400, stick.

[0020] Figure 3 This is an exploded view of the open state of a gap compensation device according to this utility model; Figure 4 This is an assembly diagram of a gap compensation device of the present invention in its closed state; Figure 5 This is a schematic diagram of the structure of the gasket of this utility model; Figure 6 This is a schematic diagram of the structure of the second gasket of this utility model; Figure 7 This is a schematic diagram of the locking component of this utility model.

[0021] Attached diagram labels: 1-Washer 1, 2-Washer 2, 3-Rivet, 4-Nut, 5-Wing nut; 6-Threaded rod; 7-Magnet, 8-Cylindrical through hole, 9-Groove, 10-Mounting hole, 11-Internal thread, 12-Circular step.

[0022] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figure 3 , Figure 4 As shown, a gap compensation device includes a first gasket 1, a second gasket 2, a hinge component, a locking component, and a magnetic component. The first gasket 1 and the second gasket 2 form a ring structure after being joined together, used to engage with the pin of the attachment. The hinge component is installed at one end of the joint between the first gasket 1 and the second gasket 2, allowing the first gasket 1 and the second gasket 2 to open or close around the hinge point, enabling the first gasket 1 and the second gasket 2 to be installed and removed from the pin of the attachment. The locking component is installed at the other end of the joint between the first gasket 1 and the second gasket 2, and is configured to fix and release the first gasket 1 and the second gasket 2. The magnetic component is installed on the first gasket 1 and the second gasket 2, used to attract the first gasket 1 and the second gasket 2 to the flange plate of the attachment.

[0027] As described above, the clearance compensation device provided is a magnetically adjustable device. Compared to using conventional adjusting shims to compensate for clearance and prevent attachment wobbling, this clearance compensation device does not require disassembling the pin on the attachment before connecting the quick-change to the attachment; simply adjusting the locking component completes the opening and closing of the clearance compensation device. Furthermore, the clearance compensation device can be magnetically attached to the flange plate of the attachment, allowing the operator to complete the entire operation by one person, significantly reducing the time required for excavator attachment changes. Simultaneously, when it is necessary to replace, add, or reduce the number of shims, simply adjusting the clearance compensation device to the open position allows for easy removal or installation from the usage location. Compared to using conventional adjusting shims to compensate for clearance, using this clearance compensation device reduces the time required for shim assembly, improving work efficiency.

[0028] The following provides a further explanation of the specific structure and connection relationship of the gasket one and gasket two mentioned above.

[0029] like Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, both gasket 1 and gasket 2 are semi-circular ring structures, and each side of the semi-circular ring structure extends outward with an ear plate; the hinge component is installed on the two ear plates on one side, and the locking component is installed on the two ear plates on the other side.

[0030] Further options, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, each of the two ear plates on one side of gasket 1 and gasket 2 has a coaxially arranged cylindrical through hole 8. The hinge component is any one of rivet 3, bolt and nut or pin and cotter pin. After cooperating with the two coaxial cylindrical through holes 8, gasket 1 and gasket 2 are hinged together.

[0031] Further options, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, each of the two ear plates on one side of gasket 1 and gasket 2 has a groove 9 arranged opposite to each other, and gasket 1 has a cylindrical through hole penetrating the ear plate at the groove 9; the locking component includes connecting component 1, connecting component 2 and connecting component 3. Connecting component 1 is installed in the cylindrical through hole of gasket 1; one end of connecting component 2 is connected to one end of connecting component 1, and the other end is engaged in the groove 9 of gasket 2; connecting component 3 is installed at the other end of connecting component 2, and the two cooperate to realize the locking function.

[0032] Further options, such as Figure 7 As shown, the first connecting component is a round rod (which can be the rivet 3 shown in the attached figure), the second connecting component is a threaded rod 6, and the third connecting component is a wing nut 5. One end of the threaded rod 6 is fixed to the rivet 3, and the threaded rod 6 can swing around the rivet 3. The wing nut 5 is installed on the part of the threaded rod 6 that extends from the groove 9 of the second washer 2, and the two form a helical pair, which in turn tightens the first washer 1 and the second washer 2 together.

[0033] Further options, such as Figure 6 As shown, the groove 9 of washer 2 has a circular step 12 on the end face facing the wing nut 5. The inner diameter of the circular step 12 is larger than the outer diameter of the wing nut. When washer 1 and washer 2 are in the closed state, the wing nut 5 falls into the circular step 12, which can prevent it from sliding.

[0034] The following provides a further explanation of the specific structure and connection relationship of the aforementioned magnetic components.

[0035] like Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, both gasket 1 and gasket 2 are provided with at least one mounting hole 10, and the magnetic attraction component is a magnet 7, which is fixed in the mounting hole 10.

[0036] Further options, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the mounting hole 10 is a stepped through hole, and the magnet 7 is a stepped magnet. The stepped magnet is inserted into the stepped through hole. The thickness of the stepped magnet is less than the depth of the stepped through hole, so that the stepped magnet is completely embedded in the stepped through hole. The stepped through hole has an internal thread 11 on the inner ring wall protruding from the stepped magnet. A nut 4 is screwed into the internal thread 11 to seal the stepped magnet and prevent it from moving.

[0037] It should be noted that the shapes of gasket 1 and gasket 2 are not limited to those in the above embodiments, the rivet 3 and wing nut 5 are not limited to the structural forms in this embodiment, and the shape and number of magnets 7 are not limited to those in this embodiment, but include all shapes and structural forms that can achieve this function.

[0038] In summary, this invention decomposes the gap compensation device into two semi-circular ring-shaped gaskets, connected by rivets, threaded rods, and wing nuts. This allows the gap compensation device to be opened and closed, eliminating the need to disassemble the pins on the attachments during assembly and reducing the time required for gasket assembly. Furthermore, magnets are installed on each of the two gaskets, allowing the operator to attach them to the flange plate of the attachment before connecting the attachment and quick-change mechanism. This eliminates the need for two people; the entire operation can be completed by a single operator.

[0039] The working device provided by this utility model is described below. The working device described below corresponds to the gap compensation device described above.

[0040] The present invention provides a working device, including a boom, a quick connector, attachments, and a clearance compensation device as described in any of the above embodiments.

[0041] The beneficial effects achieved by the working device provided by this utility model are consistent with the beneficial effects achieved by the gap compensation device provided by this utility model, so they will not be repeated here.

[0042] The engineering machinery provided by this utility model is described below. The engineering machinery described below can be referred to in correspondence with the working device described above.

[0043] The engineering machinery provided by this utility model may include the working device as described in the above embodiments.

[0044] The beneficial effects achieved by the engineering machinery provided by this utility model are consistent with the beneficial effects achieved by the working device provided by this utility model, so they will not be repeated here.

[0045] It should be noted that the aforementioned construction machinery can be excavators.

[0046] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0047] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

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