Grab bucket device and engineering equipment

Abstract

The utility model provides a grab bucket device and engineering equipment. A grab bucket device comprises a grab bucket mechanism, a grab bucket mounting plate, a grab bucket lug plate assembly and a sleeve assembly, the grab bucket mounting plate is mounted at one end of the grab bucket mechanism, the grab bucket lug plate assembly is mounted on the grab bucket mounting plate, and the sleeve assembly is detachably connected with the grab bucket lug plate assembly. When the grab bucket device is installed, whether the grab bucket lug plate assembly is matched with the connecting shaft of the mechanical arm or not can be determined, when it is determined that the connecting shaft is not matched with the grab bucket lug plate assembly, the connecting shaft is sleeved with the sleeve assembly matched with the connecting shaft, and the sleeve assembly is detachably connected with the grab bucket lug plate assembly. The sleeve assembly is additionally arranged between the connecting shaft and the grab bucket lug plate assembly, so that the grab bucket device can adapt to connecting shafts of different models, and the grab bucket device is wider in application. Quick response to emergency situations is facilitated, and the operation efficiency of engineering equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a grab bucket device and engineering equipment. Background Art

[0002] Grab excavator is an excavator with a grab as an attachment. The telescopic grab includes multiple retractable claw arms. The extension and retraction of the claw arms can close or open the grab to clean up construction waste, fallen trees, large stones on the road, etc. The grab is usually fixed at the end of the excavator's mechanical arm, and the hydraulic power source of the excavator provides power for the grab.

[0003] Existing grab devices are usually only compatible with specific types of engineering equipment. However, in actual emergency response, it is difficult to find specific types of engineering equipment, which can easily lead to delayed emergency rescue. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a grab bucket device and engineering equipment in view of the deficiencies in the prior art.

[0005] The utility model solves the above-mentioned technical problem with the following technical solution: a grab device, comprising: a grab mechanism, a grab mounting plate, a grab ear plate assembly and a sleeve assembly, wherein the grab mounting plate is mounted on one end of the grab mechanism, the grab ear plate assembly is mounted on the grab mounting plate, and the sleeve assembly is detachably connected to the grab ear plate assembly.

[0006] The beneficial effect of adopting the technical solution of the utility model is that when installing the grab bucket device, it can be determined whether the grab bucket ear plate assembly is compatible with the connecting shaft of the mechanical arm. When it is determined that the connecting shaft and the grab bucket ear plate assembly are not compatible, a sleeve assembly compatible with the connecting shaft is sleeved on the connecting shaft, and the sleeve assembly and the grab bucket ear plate assembly are detachably connected. By adding a sleeve assembly between the connecting shaft and the grab bucket ear plate assembly, the grab bucket device can be adapted to connecting shafts of different models, making the grab bucket device more widely used. It is convenient for rapid response to emergency situations and improves the operating efficiency of engineering equipment.

[0007] Further, the grab lug plate assembly includes: a first grab lug plate and a second grab lug plate, the first grab lug plate and the second grab lug plate are arranged in parallel and spaced apart, and the first grab lug plate and the second grab lug plate are respectively provided with a first mounting hole and a second mounting hole; the sleeve assembly includes: a first sleeve and a second sleeve, the first sleeve is detachably mounted in the first mounting hole, and the second sleeve is detachably mounted in the second mounting hole.

[0008] The beneficial effect of adopting the above further technical solution is: different types of sleeve assemblies, the inner diameters of the sleeve parts of the first sleeve and the second sleeve are different, so as to adapt to connecting shafts of different thicknesses. When the sleeve assembly needs to be installed, the staff sleeves the first sleeve on the first end of the connecting shaft, and the connecting part of the first sleeve is detachably connected to the first grab ear plate, and the second sleeve is sleeved on the second end of the connecting shaft. And the connecting part of the second sleeve is detachably connected to the second grab ear plate. The connecting shaft passes through the first sleeve, the mechanical arm mounting part, and the second sleeve in sequence, and can drive the grab device to move when the end of the mechanical arm moves. The use of two sleeves to detachably connect the two grab ear plates can make the connection structure of the grab device more stable, and the mechanical arm drives the grab device to work more smoothly.

[0009] Further, the first sleeve includes: a sleeve portion and a connecting portion, the sleeve portion is installed in the first mounting hole, the connecting portion is installed at one end of the sleeve portion, the connecting portion is detachably connected to the first grab lug plate, and the first sleeve and the second sleeve have the same structure; the axial length of the first sleeve is greater than the thickness of the first grab lug plate, and the axial length of the second sleeve is greater than the thickness of the second grab lug plate.

[0010] The beneficial effect of adopting the above further technical solution is that the axial length of the first sleeve is greater than the thickness of the first grab lug plate, and the axial length of the second sleeve is greater than the thickness of the second grab lug plate. The first sleeve, the second sleeve, the first grab lug plate, and the second grab lug plate can be matched more closely, so that the connecting shaft has a larger contact surface with the first sleeve and the second sleeve, so that the engineering equipment drives the grab device to move more smoothly.

[0011] Furthermore, the grab bucket mounting plate is detachably mounted on one end of the grab bucket mechanism.

[0012] The beneficial effect of adopting the above further technical solution is that the grab bucket mounting plate is detachably connected to the grab bucket mechanism. When it is necessary to replace the grab bucket mechanism of another type, the grab bucket mechanism and the grab bucket mounting plate can be directly removed, thereby improving the replacement efficiency.

[0013] Furthermore, the grab mechanism comprises: a connecting pipe, a plurality of cylinder ear plate assemblies, a claw arm mounting seat, and a plurality of claw arm ear plate assemblies, wherein the grab mounting plate is mounted at one end of the connecting pipe, a plurality of the cylinder ear plate assemblies are detachably mounted on the connecting pipe, the claw arm mounting seat is mounted at the other end of the connecting pipe, a plurality of the claw arm ear plate assemblies are detachably mounted on the claw arm mounting seat, a plurality of the cylinder ear plate assemblies and a plurality of the claw arm ear plate assemblies are arranged in a one-to-one correspondence with each other in the axial direction of the connecting pipe; a plurality of the cylinder ear plate assemblies are arranged along the The outer wall of the connecting pipe is arranged at intervals in the circumferential direction, and a plurality of claw arm ear plate assemblies are arranged at intervals in the circumferential direction along the outer wall of the claw arm mounting seat, and the number of the cylinder ear plate assemblies is the same as the number of the claw arm ear plate assemblies; a hydraulic driving component is installed on the cylinder ear plate assembly, and a claw arm is installed on the claw arm ear plate assembly, and the hydraulic driving component is connected to the claw arm; the cylinder ear plate assembly includes a pair of cylinder ear plates arranged in parallel and at intervals, and the claw arm ear plate assembly includes a pair of claw arm ear plates arranged in parallel and at intervals; the connecting pipe and the claw arm mounting seat are both cylindrical structures.

[0014] The beneficial effect of adopting the above further technical solution is that when the number of claw arms needs to be changed (such as changing five claws to three claws, or changing three claws to five claws), the staff can remove the claw arm ear plate assembly from the claw arm mounting seat, remove the cylinder ear plate assembly from the connecting pipe, and then remove the claw arm connected to the claw arm ear plate assembly and the hydraulic drive member connected to the cylinder ear plate assembly from the grab mechanism, thereby changing the number of claw arms. The number of claw arms on the grab mechanism can be changed relatively easily, which is also beneficial to prolonging the service life of the claw arm ear plate assembly and the cylinder ear plate assembly, and improving the overall stability and durability of the grab device.

[0015] Further, a first columnar cavity and a plurality of first connecting members are provided inside the connecting pipe, a plurality of first connecting holes are provided on the cavity wall of the first columnar cavity, one ends of the plurality of first connecting members are connected to the cavity wall of the first columnar cavity, and the other ends of the plurality of first connecting members pass through the plurality of first connecting holes one by one and are threadedly connected to the plurality of cylinder ear plate assemblies; a second columnar cavity and a plurality of second connecting members are provided inside the claw arm mounting seat, a plurality of second connecting holes are provided on the cavity wall of the second columnar cavity, one ends of the plurality of second connecting members are connected to the cavity wall of the second columnar cavity, and the other ends of the plurality of second connecting members pass through the plurality of second connecting holes one by one and are threadedly connected to the plurality of claw arm ear plate assemblies; the first columnar cavity is connected to the second columnar cavity.

[0016] The beneficial effect of adopting the above further technical solution is: a first columnar cavity is formed inside the connecting pipe, a plurality of first connecting holes are provided on the cavity wall, and the plurality of first connecting holes are used to install the first connecting member, and the first connecting member is threadedly connected to the cylinder ear plate assembly, so that the cylinder ear plate assembly can be locked to the connecting pipe. When the cylinder ear plate assembly needs to be removed, the staff can use a tool to remove the first connecting member from the first columnar cavity. A cylinder ear plate assembly can include two cylinder ear plates arranged in parallel and spaced apart. The above structure can facilitate the disassembly and installation of the cylinder ear plate assembly and extend the service life of the cylinder ear plate assembly. A second columnar cavity is formed inside the claw arm mounting seat, and a plurality of second connecting holes are provided on the cavity wall. The second connecting member passes through the second connecting hole and is threadedly connected to the claw arm ear plate assembly, so that the claw arm ear plate assembly is locked to the claw arm mounting seat. When the claw arm ear plate assembly needs to be removed, the staff can use a tool to remove the second connecting member from the second columnar cavity. A claw arm ear plate assembly can include two claw arm ear plates arranged in parallel and spaced apart. The above structure can facilitate the disassembly and installation of the claw arm ear plate assembly, and prolong the service life of the claw arm ear plate assembly. The first columnar cavity and the second columnar cavity are connected end to end in sequence, and the staff can remove the first connecting member or the second connecting member from the opening of the first columnar cavity or the second columnar cavity with the help of tools.

[0017] Furthermore, a first hydraulic oil ring and a second hydraulic oil ring are sleeved on the outer side of the connecting pipe, a first accommodating chamber for communicating with a hydraulic oil source of engineering equipment is provided inside the first hydraulic oil ring, a plurality of first switch valves are installed on the first hydraulic oil ring, a first end of the first switch valve is connected to the first accommodating chamber, and a second end of the first switch valve is used to communicate with a first oil inlet of the hydraulic drive component; a second accommodating chamber for communicating with a hydraulic oil source of engineering equipment is provided inside the second hydraulic oil ring, a plurality of second switch valves are installed on the second hydraulic oil ring, a first end of the second switch valve is connected to the second accommodating chamber, and a second end of the second switch valve is used to communicate with a first oil outlet of the hydraulic drive component.

[0018] The beneficial effect of adopting the above further technical solution is that the first hydraulic oil ring can collect the hydraulic oil transmitted by the hydraulic oil source and transmit the hydraulic oil to the hydraulic drive component. Because the hydraulic oil of each hydraulic drive component comes from the first hydraulic oil ring, the hydraulic oil pressure of each hydraulic drive component is equal, so that each claw arm of the grab device receives a uniform driving force, which is convenient for the grab device to perform the grabbing work. The first switch valve can control the on-off of the oil circuit between the first hydraulic oil ring and the hydraulic drive component, so that the control of the claw arm of the grab device is more flexible. Among them, the hydraulic drive component can be a hydraulic cylinder. The second switch valve can control the on-off of the oil circuit between the second hydraulic oil ring and the hydraulic drive component. When it is necessary to reduce the number of claw arms on the grab mechanism, the oil circuit of the hydraulic drive component corresponding to the claw arm to be removed can be disconnected first, that is, the first switch valve and the second switch valve corresponding to the hydraulic drive component can be closed, and then the claw arm and the hydraulic drive component can be removed, and the removal will not affect the normal operation of other claw arms.

[0019] Furthermore, a plurality of first hydraulic connectors are detachably mounted on the first hydraulic oil ring, wherein a first end of the first hydraulic connector is connected to the first accommodating chamber, and a second end of the first hydraulic connector is connected to a first oil inlet of the hydraulic drive component; a plurality of second hydraulic connectors are detachably mounted on the second hydraulic oil ring, wherein a first end of the second hydraulic connector is connected to the second accommodating chamber, and a second end of the second hydraulic connector is connected to a first oil outlet of the hydraulic drive component.

[0020] The beneficial effect of adopting the above further technical solution is that the first hydraulic oil ring can collect the hydraulic oil transmitted by the hydraulic oil source and transmit it to the hydraulic drive component. Because the hydraulic oil of each hydraulic drive component comes from the first hydraulic oil ring, the hydraulic oil pressure in each hydraulic drive component is equal, so that each claw arm of the grab device is subjected to a uniform driving force, which is convenient for the grab device to perform the grabbing work. In addition, the first hydraulic connector is detachably connected to the first hydraulic oil ring. When any one of the first hydraulic connectors is damaged, the first hydraulic connector can be replaced to avoid the damage of the first hydraulic connector causing the failure of the entire grab device. Among them, the hydraulic drive component can be a hydraulic cylinder. The second hydraulic oil ring can collect the hydraulic oil transmitted by each hydraulic drive component to the hydraulic oil source, and the second hydraulic connector is detachably connected to the second hydraulic oil ring. When any one of the second hydraulic connectors is damaged, the second hydraulic connector can be replaced to avoid the damage of the second hydraulic connector causing the damage of the entire grab device.

[0021] Furthermore, a plurality of second oil outlets are provided on the cavity wall of the first accommodating cavity, and the first ends of the plurality of first hydraulic connectors are connected to the plurality of second oil outlets in a one-to-one correspondence; a plurality of second oil inlets are provided on the cavity wall of the second accommodating cavity, and the first ends of the plurality of second hydraulic connectors are connected to the plurality of second oil inlets in a one-to-one correspondence; a first blocking member is detachably provided in the second oil outlet, and a second blocking member is detachably provided in the second oil inlet.

[0022] The beneficial effect of adopting the above further technical solution is: the first blocking member is detachably arranged on the first hydraulic oil ring and is used to block the second oil outlet in a redundant state; the second blocking member is detachably arranged on the second hydraulic oil ring and is used to block the second oil inlet in a redundant state. When the claw arm of the grab device is disassembled, the hydraulic drive member needs to be disassembled and the corresponding hydraulic pipeline needs to be blocked. For example, when the claw arm located in a certain position is disassembled, the hydraulic drive member in the above position needs to be disassembled and the hydraulic pipeline connected to the inlet and outlet of the hydraulic drive member needs to be blocked. The second oil inlet in the redundant state is the second oil inlet that is not connected to the hydraulic drive member after the hydraulic drive member is removed; the second oil outlet in the redundant state is the second oil outlet that is not connected to the hydraulic drive member after the hydraulic drive member is removed. The staff can disassemble the second hydraulic connector on the second oil inlet and replace it with the second blocking member to block the second oil inlet. The first hydraulic connector on the second oil outlet can also be disassembled and replaced with the first blocking member to block the second oil outlet.

[0023] In addition, the utility model also provides an engineering equipment, comprising a grab bucket device as described in any one of the above items.

[0024] The beneficial effect of adopting the technical solution of the utility model is that when installing the grab bucket device, it can be determined whether the grab bucket ear plate assembly is compatible with the connecting shaft of the mechanical arm. When it is determined that the connecting shaft and the grab bucket ear plate assembly are not compatible, a sleeve assembly compatible with the connecting shaft is sleeved on the connecting shaft, and the sleeve assembly and the grab bucket ear plate assembly are detachably connected. By adding a sleeve assembly between the connecting shaft and the grab bucket ear plate assembly, the grab bucket device can be adapted to connecting shafts of different models, making the grab bucket device more widely used. It is convenient for rapid response to emergency situations and improves the operating efficiency of engineering equipment.

[0025] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of a grab bucket device provided in an embodiment of the utility model.

[0027] Figure 2 This is one of the structural schematic diagrams of the first sleeve provided in an embodiment of the utility model.

[0028] Figure 3 The second structural schematic diagram of the first sleeve provided in the embodiment of the utility model.

[0029] Explanation of the accompanying drawings: 1. grab mechanism; 101. connecting pipe; 102. cylinder ear plate assembly; 103. claw arm mounting seat; 104. claw arm ear plate assembly; 105. first hydraulic oil ring; 106. first switch valve; 107. second hydraulic oil ring; 108. second switch valve; 2. connecting mechanism; 201. grab mounting plate; 202. grab ear plate assembly; 2021. first grab ear plate; 2022. second grab ear plate; 203. first sleeve; 2031. sleeve part; 2032. connecting part. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The embodiments given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] like Figures 1 to 3 As shown, an embodiment of the utility model provides a grab device, including: a grab mechanism 1, a grab mounting plate 201, a grab ear plate assembly 202 and a sleeve assembly, wherein the grab mounting plate 201 is installed at one end of the grab mechanism 1, the grab ear plate assembly 202 is installed on the grab mounting plate 201, and the sleeve assembly is detachably connected to the grab ear plate assembly 202.

[0032] The beneficial effect of adopting the technical solution of the utility model is that when installing the grab bucket device, it can be determined whether the grab bucket ear plate assembly is compatible with the connecting shaft of the mechanical arm. When it is determined that the connecting shaft and the grab bucket ear plate assembly are not compatible, a sleeve assembly compatible with the connecting shaft is sleeved on the connecting shaft, and the sleeve assembly and the grab bucket ear plate assembly are detachably connected. By adding a sleeve assembly between the connecting shaft and the grab bucket ear plate assembly, the grab bucket device can be adapted to connecting shafts of different models, making the grab bucket device more widely used. It is convenient for rapid response to emergency situations and improves the operating efficiency of engineering equipment.

[0033] like Figures 1 to 3 As shown, further, the grab ear plate assembly 202 includes: a first grab ear plate 2021 and a second grab ear plate 2022, the first grab ear plate 2021 and the second grab ear plate 2022 are arranged in parallel and spaced apart, and the first grab ear plate 2021 and the second grab ear plate 2022 are respectively provided with a first mounting hole and a second mounting hole; the sleeve assembly includes: a first sleeve 203 and a second sleeve, the first sleeve 203 is detachably mounted in the first mounting hole, and the second sleeve is detachably mounted in the second mounting hole.

[0034] The beneficial effect of adopting the above further technical solution is: different types of sleeve assemblies, the inner diameters of the sleeve parts of the first sleeve and the second sleeve are different, so as to adapt to connecting shafts of different thicknesses. When the sleeve assembly needs to be installed, the staff sleeves the first sleeve on the first end of the connecting shaft, and the connecting part of the first sleeve is detachably connected to the first grab ear plate, and the second sleeve is sleeved on the second end of the connecting shaft. And the connecting part of the second sleeve is detachably connected to the second grab ear plate. The connecting shaft passes through the first sleeve, the mechanical arm mounting part, and the second sleeve in sequence, and can drive the grab device to move when the end of the mechanical arm moves. The use of two sleeves to detachably connect the two grab ear plates can make the connection structure of the grab device more stable, and the mechanical arm drives the grab device to work more smoothly.

[0035] When installing the grab bucket device, it can be determined whether the grab bucket ear plate assembly is compatible with the connecting shaft of the mechanical arm. When it is determined that the connecting shaft and the grab bucket ear plate assembly are not compatible, a sleeve assembly compatible with the connecting shaft is sleeved on the connecting shaft, and the sleeve assembly and the grab bucket ear plate assembly are detachably connected. Adding a sleeve assembly between the connecting shaft and the grab bucket ear plate assembly can make the grab bucket device adapt to connecting shafts of different models, making the grab bucket device more widely used.

[0036] like Figures 1 to 3 As shown, further, the first sleeve 203 includes: a sleeve portion 2031 and a connecting portion 2032, the sleeve portion 2031 is installed in the first mounting hole, the connecting portion 2032 is installed at one end of the sleeve portion 2031, the connecting portion 2032 is detachably connected to the first grab ear plate 2021, and the first sleeve 203 has the same structure as the second sleeve; the axial length of the first sleeve 203 is greater than the thickness of the first grab ear plate 2021, and the axial length of the second sleeve is greater than the thickness of the second grab ear plate 2022.

[0037] The beneficial effect of adopting the above further technical solution is that the axial length of the first sleeve is greater than the thickness of the first grab lug plate, and the axial length of the second sleeve is greater than the thickness of the second grab lug plate. The first sleeve, the second sleeve, the first grab lug plate, and the second grab lug plate can be matched more closely, so that the connecting shaft has a larger contact surface with the first sleeve and the second sleeve, so that the engineering equipment drives the grab device to move more smoothly.

[0038] like Figures 1 to 3 As shown, further, the grab bucket mounting plate 201 is detachably mounted on one end of the grab bucket mechanism 1.

[0039] The beneficial effect of adopting the above further technical solution is that the grab bucket mounting plate is detachably connected to the grab bucket mechanism. When it is necessary to replace the grab bucket mechanism of another type, the grab bucket mechanism and the grab bucket mounting plate can be directly removed, thereby improving the replacement efficiency.

[0040] like Figures 1 to 3 As shown, further, the grab mechanism 1 includes: a connecting pipe 101, a plurality of cylinder ear plate assemblies 102, a claw arm mounting seat 103, and a plurality of claw arm ear plate assemblies 104, the grab mounting plate 201 is mounted on one end of the connecting pipe 101, a plurality of the cylinder ear plate assemblies 102 are detachably mounted on the connecting pipe 101, the claw arm mounting seat 103 is mounted on the other end of the connecting pipe 101, a plurality of the claw arm ear plate assemblies 104 are detachably mounted on the claw arm mounting seat 103, and a plurality of the cylinder ear plate assemblies 102 and a plurality of the claw arm ear plate assemblies 104 are arranged in a one-to-one correspondence in the axial direction of the connecting pipe 101; a plurality of the cylinders The ear plate assemblies 102 are arranged at intervals along the circumferential direction of the outer wall of the connecting pipe 101, and a plurality of claw arm ear plate assemblies 104 are arranged at intervals along the circumferential direction of the outer wall of the claw arm mounting seat 103, and the number of the cylinder ear plate assemblies 102 is the same as the number of the claw arm ear plate assemblies 104; a hydraulic driving component is installed on the cylinder ear plate assembly 102, and a claw arm is installed on the claw arm ear plate assembly 104, and the hydraulic driving component is connected to the claw arm; the cylinder ear plate assembly 102 includes a pair of cylinder ear plates arranged in parallel and at intervals, and the claw arm ear plate assembly 104 includes a pair of claw arm ear plates arranged in parallel and at intervals; the connecting pipe 101 and the claw arm mounting seat 103 are both cylindrical structures.

[0041] The beneficial effect of adopting the above further technical solution is that when the number of claw arms needs to be changed (such as changing five claws to three claws, or changing three claws to five claws), the staff can remove the claw arm ear plate assembly from the claw arm mounting seat, remove the cylinder ear plate assembly from the connecting pipe, and then remove the claw arm connected to the claw arm ear plate assembly and the hydraulic drive member connected to the cylinder ear plate assembly from the grab mechanism, thereby changing the number of claw arms. The number of claw arms on the grab mechanism can be changed relatively easily, which is also beneficial to prolonging the service life of the claw arm ear plate assembly and the cylinder ear plate assembly, and improving the overall stability and durability of the grab device.

[0042] like Figures 1 to 3As shown, further, a first columnar cavity and a plurality of first connecting members are provided inside the connecting pipe 101, a plurality of first connecting holes are provided on the cavity wall of the first columnar cavity, one ends of the plurality of first connecting members are connected to the cavity wall of the first columnar cavity, and the other ends of the plurality of first connecting members pass through the plurality of first connecting holes one by one and are threadedly connected to the plurality of cylinder ear plate assemblies 102; a second columnar cavity and a plurality of second connecting members are provided inside the claw arm mounting seat 103, a plurality of second connecting holes are provided on the cavity wall of the second columnar cavity, one ends of the plurality of second connecting members are connected to the cavity wall of the second columnar cavity, and the other ends of the plurality of second connecting members pass through the plurality of second connecting holes one by one and are threadedly connected to the plurality of claw arm ear plate assemblies 104; the first columnar cavity is connected to the second columnar cavity.

[0043] The beneficial effect of adopting the above further technical solution is: a first columnar cavity is formed inside the connecting pipe, a plurality of first connecting holes are provided on the cavity wall, and the plurality of first connecting holes are used to install the first connecting member, and the first connecting member is threadedly connected to the cylinder ear plate assembly, so that the cylinder ear plate assembly can be locked to the connecting pipe. When the cylinder ear plate assembly needs to be removed, the staff can use a tool to remove the first connecting member from the first columnar cavity. A cylinder ear plate assembly can include two cylinder ear plates arranged in parallel and spaced apart. The above structure can facilitate the disassembly and installation of the cylinder ear plate assembly and extend the service life of the cylinder ear plate assembly. A second columnar cavity is formed inside the claw arm mounting seat, and a plurality of second connecting holes are provided on the cavity wall. The second connecting member passes through the second connecting hole and is threadedly connected to the claw arm ear plate assembly, so that the claw arm ear plate assembly is locked to the claw arm mounting seat. When the claw arm ear plate assembly needs to be removed, the staff can use a tool to remove the second connecting member from the second columnar cavity. A claw arm ear plate assembly can include two claw arm ear plates arranged in parallel and spaced apart. The above structure can facilitate the disassembly and installation of the claw arm ear plate assembly, and prolong the service life of the claw arm ear plate assembly. The first columnar cavity and the second columnar cavity are connected end to end in sequence, and the staff can remove the first connecting member or the second connecting member from the opening of the first columnar cavity or the second columnar cavity with the help of tools.

[0044] like Figures 1 to 3As shown, further, the outer side of the connecting pipe 101 is sleeved with a first hydraulic oil ring 105 and a second hydraulic oil ring 107, the interior of the first hydraulic oil ring 105 is provided with a first accommodating chamber for communicating with the hydraulic oil source of the engineering equipment, and a plurality of first switch valves 106 are installed on the first hydraulic oil ring 105, the first end of the first switch valve 106 is communicated with the first accommodating chamber, and the second end of the first switch valve 106 is used to communicate with the first oil inlet of the hydraulic drive component; the interior of the second hydraulic oil ring 107 is provided with a second accommodating chamber for communicating with the hydraulic oil source of the engineering equipment, and a plurality of second switch valves 108 are installed on the second hydraulic oil ring, the first end of the second switch valve 108 is communicated with the second accommodating chamber, and the second end of the second switch valve 108 is used to communicate with the first oil outlet of the hydraulic drive component.

[0045] The beneficial effect of adopting the above further technical solution is that the first hydraulic oil ring can collect the hydraulic oil transmitted by the hydraulic oil source and transmit the hydraulic oil to the hydraulic drive component. Because the hydraulic oil of each hydraulic drive component comes from the first hydraulic oil ring, the hydraulic oil pressure of each hydraulic drive component is equal, so that each claw arm of the grab device receives a uniform driving force, which is convenient for the grab device to perform the grabbing work. The first switch valve can control the on-off of the oil circuit between the first hydraulic oil ring and the hydraulic drive component, so that the control of the claw arm of the grab device is more flexible. Among them, the hydraulic drive component can be a hydraulic cylinder. The second switch valve can control the on-off of the oil circuit between the second hydraulic oil ring and the hydraulic drive component. When it is necessary to reduce the number of claw arms on the grab mechanism, the oil circuit of the hydraulic drive component corresponding to the claw arm to be removed can be disconnected first, that is, the first switch valve and the second switch valve corresponding to the hydraulic drive component can be closed, and then the claw arm and the hydraulic drive component can be removed, and the removal will not affect the normal operation of other claw arms.

[0046] like Figures 1 to 3 As shown, further, a plurality of first hydraulic connectors are detachably mounted on the first hydraulic oil ring 105, wherein the first end of the first hydraulic connector is communicated with the first accommodating chamber, and the second end of the first hydraulic connector is communicated with the first oil inlet of the hydraulic drive component; a plurality of second hydraulic connectors are detachably mounted on the second hydraulic oil ring, wherein the first end of the second hydraulic connector is communicated with the second accommodating chamber, and the second end of the second hydraulic connector is communicated with the first oil outlet of the hydraulic drive component.

[0047] The beneficial effect of adopting the above further technical solution is that the first hydraulic oil ring can collect the hydraulic oil transmitted by the hydraulic oil source and transmit it to the hydraulic drive component. Because the hydraulic oil of each hydraulic drive component comes from the first hydraulic oil ring, the hydraulic oil pressure in each hydraulic drive component is equal, so that each claw arm of the grab device is subjected to a uniform driving force, which is convenient for the grab device to perform the grabbing work. In addition, the first hydraulic connector is detachably connected to the first hydraulic oil ring. When any one of the first hydraulic connectors is damaged, the first hydraulic connector can be replaced to avoid the damage of the first hydraulic connector causing the failure of the entire grab device. Among them, the hydraulic drive component can be a hydraulic cylinder. The second hydraulic oil ring can collect the hydraulic oil transmitted by each hydraulic drive component to the hydraulic oil source, and the second hydraulic connector is detachably connected to the second hydraulic oil ring. When any one of the second hydraulic connectors is damaged, the second hydraulic connector can be replaced to avoid the damage of the second hydraulic connector causing the damage of the entire grab device.

[0048] Furthermore, a plurality of second oil outlets are provided on the cavity wall of the first accommodating cavity, and the first ends of the plurality of first hydraulic connectors are connected to the plurality of second oil outlets in a one-to-one correspondence; a plurality of second oil inlets are provided on the cavity wall of the second accommodating cavity, and the first ends of the plurality of second hydraulic connectors are connected to the plurality of second oil inlets in a one-to-one correspondence; a first blocking member is detachably provided in the second oil outlet, and a second blocking member is detachably provided in the second oil inlet.

[0049] The beneficial effect of adopting the above further technical solution is: the first blocking member is detachably arranged on the first hydraulic oil ring and is used to block the second oil outlet in a redundant state; the second blocking member is detachably arranged on the second hydraulic oil ring and is used to block the second oil inlet in a redundant state. When the claw arm of the grab device is disassembled, the hydraulic drive member needs to be disassembled and the corresponding hydraulic pipeline needs to be blocked. For example, when the claw arm located in a certain position is disassembled, the hydraulic drive member in the above position needs to be disassembled and the hydraulic pipeline connected to the inlet and outlet of the hydraulic drive member needs to be blocked. The second oil inlet in the redundant state is the second oil inlet that is not connected to the hydraulic drive member after the hydraulic drive member is removed; the second oil outlet in the redundant state is the second oil outlet that is not connected to the hydraulic drive member after the hydraulic drive member is removed. The staff can disassemble the second hydraulic connector on the second oil inlet and replace it with the second blocking member to block the second oil inlet. The first hydraulic connector on the second oil outlet can also be disassembled and replaced with the first blocking member to block the second oil outlet.

[0050] like Figure 1 The figure is a schematic diagram of the structure of a grab device (grab device) for engineering equipment provided according to an embodiment of the utility model. The engineering equipment includes a mechanical arm and a grab device, and the grab device (which can be a hydraulic grab adapted to various excavator models) includes:

[0051] Grab bucket mechanism 1, used for grabbing materials;

[0052] The connecting mechanism 2 includes a grab mounting plate 201, a grab ear plate assembly 202 and a sleeve assembly. The grab mounting plate 201 is arranged at one end of the claw arm away from the grab mechanism 1. The grab ear plate assembly 202 is arranged on the side end surface of the grab mounting plate 201 away from the grab mechanism 1. The connecting shaft of the mechanical arm transversely penetrates the grab ear plate assembly 202 and the mounting part of the mechanical arm. The sleeve assembly is sleeved on the connecting shaft and is detachably connected to the grab ear plate assembly 202.

[0053] In the prior art, the sizes of the connecting shafts of different mechanical arm mounting parts are inconsistent, so the grab device on site can usually only be used in conjunction with a specific model of mechanical arm. In order to solve the above problem, the embodiment of the utility model provides a grab device, which can be a grab device for engineering equipment, including a grab mechanism 1 and a connecting mechanism 2 that matches the mechanical arm mounting part. The grab mechanism 1 is the main part of the grab device, which can be used to grab materials such as stones, waste materials, and trees. The connecting mechanism 2 includes a grab mounting plate 201, a grab ear plate assembly 202, and a sleeve assembly. The grab mounting plate 201 is used to connect with the grab mechanism 1, and the grab ear plate assembly 202 is connected to the side end surface of the grab mounting plate 201, which is used to install the grab mechanism 1 on the mechanical arm mounting part. The connecting shaft can connect the grab ear plate assembly 202 and the mechanical part mounting part. When the grab ear plate assembly 202 is not compatible with the connecting shaft, a sleeve assembly that is compatible with the connecting shaft is selected and sleeved on the connecting shaft, and the sleeve assembly and the grab ear plate assembly 202 are detachably connected. Wherein, the connecting shaft can be a pin shaft.

[0054] In a specific embodiment, the grab bucket device includes a grab bucket ear plate assembly 202 whose pin hole is adapted to the connecting shaft of a large excavator, and the connecting hole on the grab bucket ear plate assembly 202 is relatively large, and the grab bucket device includes a sleeve assembly adapted to multiple types of excavators. When the large excavator is connected to the grab bucket device, the grab bucket ear plate assembly 202 is directly installed on the connecting shaft of the excavator mechanical arm. When the medium-sized excavator is connected to the grab bucket device, the sleeve assembly of the corresponding model is sleeved on the connecting shaft of the medium-sized excavator mechanical arm, and the sleeve assembly is detachably connected to the grab bucket ear plate assembly 202, so that the medium-sized excavator can drive the grab bucket device to work.

[0055] By adopting the grab device mentioned above, the grab device can be adapted to engineering equipment of different types, which is convenient for rapid response to emergency situations and improves the operating efficiency of the engineering equipment.

[0056] In one embodiment, Figure 2 As shown, it is a schematic front view of the first sleeve 203 provided according to an embodiment of the utility model, as shown Figure 3 , which is a schematic side view of the first sleeve 203 provided according to an embodiment of the utility model. Figure 3 The arrow in represents the axial direction of the first sleeve.

[0057] The grab ear plate assembly 202 includes a first grab ear plate 2021 and a second grab ear plate 2022 which are distributed in parallel and at intervals. An installation space for installing the installation part is formed between the first grab ear plate 2021 and the second grab ear plate 2022. The first grab ear plate 2021 and the second grab ear plate 2022 are respectively formed with a first installation hole and a second installation hole. The sleeve assembly includes a first sleeve 203 and a second sleeve (not shown in the figure). The first sleeve 203 is sleeved on the outer peripheral side of the first end of the connecting shaft and is detachably installed in the first installation hole. The second sleeve is sleeved on the outer peripheral side of the second end of the connecting shaft and is detachably installed in the second installation hole.

[0058] The first sleeve 203 may include a sleeve portion 2031 and a connecting portion 2032. The sleeve portion 2031 is inserted between the connecting shaft and the grab lug plate (the first grab lug plate 2021). The connecting portion 2032 is located at the end of the sleeve portion 2031 in the axial direction. The connecting portion 2032 is detachably connected to the first grab lug plate 2021. For sleeve assemblies of different models, the inner diameters of the sleeve portions 2031 of the first sleeve 203 and the second sleeve are different to adapt to connecting shafts of different thicknesses. When the sleeve assembly needs to be installed, the staff sleeves the first sleeve 203 on the first end of the connecting shaft, and the connecting portion 2032 of the first sleeve 203 is detachably connected to the first grab lug plate 2021, and the second sleeve is sleeved on the second end of the connecting shaft. And the connecting portion 2032 of the second sleeve is detachably connected to the second grab lug plate 2022. The connecting shaft passes through the first sleeve 203, the mechanical arm mounting portion, and the second sleeve in sequence, and can drive the grab device to move when the end of the mechanical arm moves. The two sleeves are used to detachably connect the two grab ear plates, respectively, so that the connection structure of the grab device can be more stable, and the mechanical arm drives the grab device to work more stably.

[0059] In one embodiment, the axial length of the first sleeve 203 is greater than the thickness of the first grab lug plate 2021 , and the axial length of the second sleeve is greater than the thickness of the second grab lug plate 2022 .

[0060] By adopting the above structure, the first sleeve 203, the second sleeve, the first grab bucket ear plate 2021 and the second grab bucket ear plate 2022 can be more closely matched, so that the connecting shaft has a larger contact surface with the first sleeve 203 and the second sleeve, and the engineering equipment can drive the grab bucket device to move more smoothly.

[0061] In one embodiment, the grab bucket mounting plate 201 is detachably connected to the grab bucket mechanism 1 .

[0062] When it is necessary to replace the grab mechanism 1 with another type, the grab mechanism 1 and the grab mounting plate 201 can be directly removed to improve the replacement efficiency.

[0063] In one embodiment, the grab mechanism 1 includes: a connecting pipe 101, which is arranged on the side of the grab mounting plate 201 away from the grab ear plate assembly 202; a plurality of cylinder ear plate assemblies 102, which are all detachably mounted on the connecting pipe 101 and are distributed at intervals along the circumference of the connecting pipe 101; a claw arm mounting seat 103, which is arranged at the second end of the connecting pipe 101; a plurality of claw arm ear plate assemblies 104, which are all detachably mounted on the claw arm mounting seat 103 and are distributed at intervals along the circumference of the claw arm mounting seat 103, the number of claw arm ear plate assemblies 104 is consistent with the number of cylinder ear plate assemblies 102, and in the circumferential direction, the plurality of claw arm ear plate assemblies 104 and the plurality of cylinder ear plate assemblies 102 are distributed one-to-one.

[0064] When removing the claw arm of the prior art grab device, it is necessary to knock out the pin from the claw arm ear plate assembly 104 and knock out the corresponding other pin from the cylinder ear plate assembly 102. In the above process, the cylinder ear plate assembly 102 and / or the claw arm ear plate assembly 104 are easily deformed or damaged by force, and thus they may need to be replaced frequently. The grab mechanism 1 provided by the utility model includes a connecting pipe 101, a plurality of cylinder ear plate assemblies 102, a claw arm mounting seat 103 and a plurality of claw arm ear plate assemblies 104, wherein the cylinder ear plate assembly 102 is detachably mounted on the connecting pipe 101 and distributed at intervals along the circumference of the connecting pipe 101. The hydraulic drive components and claw arms on the grab mechanism 1 are installed one by one. When the hydraulic drive components drive the claw arms to extend and retract, and drive the movement of multiple claw arms at the same time, the grab mechanism 1 will close or open. Therefore, in the present invention, the number of the claw arm ear plate assemblies 104 and the number of the cylinder ear plate assemblies 102 are the same, and the plurality of claw arm ear plate assemblies 104 and the plurality of cylinder ear plate assemblies 102 are distributed in a one-to-one correspondence.

[0065] When the number of claw arms needs to be changed (such as replacing five claws with three claws, or replacing three claws with five claws), the staff can remove the claw arm ear plate assembly 104 from the claw arm mounting seat 103, remove the cylinder ear plate assembly 102 from the connecting pipe 101, and then remove the claw arm connected to the claw arm ear plate assembly 104 and the hydraulic drive component connected to the cylinder ear plate assembly 102 from the grab mechanism 1, thereby changing the number of claw arms.

[0066] By adopting the above-mentioned grab device, the number of claw arms on the grab mechanism 1 can be changed relatively easily, which is also beneficial to prolonging the service life of the claw arm ear plate assembly 104 and the cylinder ear plate assembly 102, thereby improving the overall stability and durability of the grab device.

[0067] In one embodiment, a first cylindrical cavity (not shown in the figure) is formed inside the connecting pipe 101, and a plurality of first connecting holes (not shown in the figure) are provided on the cavity wall of the first cylindrical cavity. The grab mechanism 1 also includes a plurality of first connecting members (not shown in the figure), and one end of each first connecting member is clamped on the cavity wall of the first cylindrical cavity, and the other end of each first connecting member passes through its corresponding first connecting hole and forms a threaded connection with the cylinder ear plate assembly 102.

[0068] The connecting pipe 101 is a cylindrical structure, with a first columnar cavity formed inside, and a plurality of first connecting holes are provided on the cavity wall, and the plurality of first connecting holes are used to install the first connecting member, and the first connecting member is threadedly connected to the cylinder ear plate assembly 102, and the cylinder ear plate assembly 102 can be locked to the connecting pipe 101. When the cylinder ear plate assembly 102 needs to be removed, the staff can use a tool to remove the first connecting member from the first columnar cavity. A cylinder ear plate assembly 102 may include two cylinder ear plates arranged in parallel and spaced apart. The above structure can facilitate the disassembly and installation of the cylinder ear plate assembly 102, and extend the service life of the cylinder ear plate assembly 102.

[0069] In one embodiment, a second cylindrical cavity (not shown in the figure) is formed inside the claw arm mounting base 103, and a plurality of second connecting holes (not shown in the figure) are provided on the cavity wall of the second cylindrical cavity. The grab mechanism 1 also includes a plurality of second connecting members (not shown in the figure), and one end of each second connecting member is clamped on the cavity wall of the second cylindrical cavity, and the other end of each second connecting member passes through its corresponding second connecting hole and forms a threaded connection with the claw arm ear plate assembly 104.

[0070] The claw arm mounting seat 103 is also a cylindrical structure, and a second columnar cavity is formed inside the claw arm mounting seat 103. A plurality of second connecting holes are provided on the cavity wall. The second connecting member passes through the second connecting hole and is threadedly connected to the claw arm ear plate assembly 104, and the claw arm ear plate assembly 104 is locked to the claw arm mounting seat 103. When the claw arm ear plate assembly 103 needs to be removed, the staff can use a tool to remove the second connecting member from the second columnar cavity. A claw arm ear plate assembly 104 may include two claw arm ear plates arranged in parallel and spaced apart. The above structure can facilitate the disassembly and installation of the claw arm ear plate assembly 104, and extend the service life of the claw arm ear plate assembly 104.

[0071] In a specific embodiment, the first columnar cavity and the second columnar cavity are connected end to end in sequence, and a worker can remove the first connecting member or the second connecting member from the opening of the first columnar cavity or the second columnar cavity with the help of a tool.

[0072] In one embodiment, the grab mechanism 1 also includes: a plurality of claw arms (not shown in the figure), which are mounted one-to-one on the plurality of claw arm ear plate assemblies 104; a plurality of hydraulic drive components (not shown in the figure), which are drivingly connected to the plurality of claw arms one-to-one; a first hydraulic oil ring 105, which is sleeved on the outer side of the connecting pipe 101 and has a first accommodating chamber (not shown in the figure) formed inside thereof that can be connected to the hydraulic oil source of the engineering equipment; a plurality of first switch valves 106 (such as solenoid valves), which are all arranged on the first hydraulic oil ring 105, the first end of the first switch valve 106 is connected to the first accommodating chamber, and the second end of the first switch valve 106 is connected to the first oil inlet (not shown in the figure) of the hydraulic drive component.

[0073] The first hydraulic oil ring 105 can collect the hydraulic oil transmitted by the hydraulic oil source and transmit the hydraulic oil to the hydraulic drive component. Since the hydraulic oil of each hydraulic drive component comes from the first hydraulic oil ring 105, the hydraulic oil pressure of each hydraulic drive component is equal, so that each claw arm of the grab device receives a uniform driving force, which is convenient for the grab device to perform the grabbing work. The first switch valve 106 can control the on-off of the oil circuit between the first hydraulic oil ring 105 and the hydraulic drive component, so that the claw arm control of the grab device is more flexible. Among them, the hydraulic drive component can be a hydraulic cylinder.

[0074] In one embodiment, the grab mechanism 1 also includes: a second hydraulic oil ring 107, which is sleeved on the outer side of the connecting pipe 101 and has a second accommodating chamber (not shown in the figure) formed inside that can be connected to the hydraulic oil source; a plurality of second switch valves 108, and the plurality of second switch valves 108 (such as solenoid valves) are all arranged on the second hydraulic oil ring 107, the first end of the second switch valve 108 is connected to the second accommodating chamber, and the second end of the second switch valve 108 is connected to the first oil outlet (not shown in the figure) of the hydraulic drive component.

[0075] The second switch valve 108 can control the opening and closing of the oil circuit between the second hydraulic oil ring 107 and the hydraulic drive component.

[0076] Specifically, when it is necessary to reduce the number of claw arms on the grab mechanism 1, the oil circuit of the hydraulic drive component corresponding to the claw arm to be removed can be disconnected first, that is, the first switch valve 106 and the second switch valve 108 corresponding to the hydraulic drive component can be closed, and then the claw arm and the hydraulic drive component can be removed without affecting the normal operation of other claw arms.

[0077] In another embodiment, the grab device also includes: a plurality of claw arms, which are mounted one-to-one on the plurality of claw arm ear plate assemblies; a plurality of hydraulic drive components, which are drive-connected to the plurality of claw arms one-to-one; a first hydraulic oil ring 105, which is sleeved on the outer side of the connecting pipe and has a first accommodating chamber formed inside that can be connected to the hydraulic oil source of the engineering equipment; a plurality of first hydraulic connectors (not shown in the figure), which are all detachably arranged on the first hydraulic oil ring 105, the first end of the first hydraulic connector is connected to the first accommodating chamber, and the second end of the first hydraulic connector is connected to the first oil inlet (not shown in the figure) of the hydraulic drive component.

[0078] The first hydraulic oil ring 105 can collect and transmit the hydraulic oil transmitted by the hydraulic oil source to the hydraulic drive component. Since the hydraulic oil of each hydraulic drive component comes from the first hydraulic oil ring 105, the hydraulic oil pressure in each hydraulic drive component is equal, so that each claw arm of the grab device is subjected to a uniform driving force, which is convenient for the grab device to perform the grabbing work. In addition, the first hydraulic connector is detachably connected to the first hydraulic oil ring 105. When any of the first hydraulic connectors is damaged, the first hydraulic connector can be replaced to avoid the damage of the first hydraulic connector causing the failure of the entire grab device. Among them, the hydraulic drive component can be a hydraulic cylinder.

[0079] In another embodiment, the grab device further includes: a second hydraulic oil ring 107, which is sleeved on the outer side of the connecting pipe 101 and has a second accommodating chamber formed inside thereof that can be communicated with the hydraulic oil source; a plurality of second hydraulic joints (not shown in the figure), which are all detachably arranged on the second hydraulic oil ring 107, the first end of the second hydraulic joint is communicated with the second accommodating chamber, and the second end of the second hydraulic joint is communicated with the first oil outlet of the hydraulic drive component. The second hydraulic oil ring 107 can collect the hydraulic oil transmitted by each hydraulic drive component to the hydraulic oil source, and the second hydraulic joint is detachably connected to the second hydraulic oil ring 107. When any second hydraulic joint is damaged, the second hydraulic joint can be replaced to avoid damage to the entire grab device caused by damage to the second hydraulic joint.

[0080] In another embodiment, a plurality of second oil outlets (not shown in the figure) are formed on the cavity wall of the first accommodating cavity, the first end of the first hydraulic joint is connected to the second oil outlets, a plurality of second oil inlets (not shown in the figure) are formed on the cavity wall of the second accommodating cavity, the first end of the second hydraulic joint is connected to the second oil inlet, and the grab device further includes: a first plugging member (not shown in the figure), which is detachably arranged on the first hydraulic oil ring 105 and used to plug the second oil outlet in a redundant state; a second plugging member (not shown in the figure), which is detachably arranged on the second hydraulic oil ring 107 and used to plug the second oil inlet in a redundant state. When the claw arm of the grab device is disassembled, the hydraulic drive member needs to be disassembled and the corresponding hydraulic pipeline needs to be blocked. For example, to disassemble the claw arm located in a certain position, the hydraulic drive member in the above position needs to be disassembled, and the hydraulic pipeline connected to the inlet and outlet of the hydraulic drive member needs to be blocked. The redundant second oil inlet is the second oil inlet that is not connected to the hydraulic drive component after the hydraulic drive component is removed; the redundant second oil outlet is the second oil outlet that is not connected to the hydraulic drive component after the hydraulic drive component is removed. The staff can remove the second hydraulic connector on the second oil inlet and replace it with the second blocking member to block the second oil inlet. The staff can also remove the first hydraulic connector on the second oil outlet and replace it with the first blocking member to block the second oil outlet.

[0081] By adopting the grab bucket device, one grab bucket device can be adapted to a plurality of different types of engineering equipment, so that the grab bucket device can be more widely used, which is convenient for rapid response in emergency situations and improves the emergency work efficiency of engineering equipment. The number of claw arms of the grab bucket device can be changed by removing the claw arm ear plate assembly 104 and the cylinder ear plate assembly 102. The claw arm ear plate assembly 104 and the cylinder ear plate assembly 102 that are detachably connected have a longer service life and a more stable structure.

[0082] In addition, the utility model also provides an engineering equipment, comprising a grab bucket device as described in any one of the above items.

[0083] The beneficial effect of adopting the technical solution of the utility model is that when installing the grab bucket device, it can be determined whether the grab bucket ear plate assembly is compatible with the connecting shaft of the mechanical arm. When it is determined that the connecting shaft and the grab bucket ear plate assembly are not compatible, a sleeve assembly compatible with the connecting shaft is sleeved on the connecting shaft, and the sleeve assembly and the grab bucket ear plate assembly are detachably connected. By adding a sleeve assembly between the connecting shaft and the grab bucket ear plate assembly, the grab bucket device can be adapted to connecting shafts of different models, making the grab bucket device more widely used. It is convenient for rapid response to emergency situations and improves the operating efficiency of engineering equipment.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A grab bucket device, characterized in that: include: A grab mechanism, a grab mounting plate, a grab lug plate assembly and a sleeve assembly, wherein the grab mounting plate is mounted on one end of the grab mechanism, the grab lug plate assembly is mounted on the grab mounting plate, and the sleeve assembly is detachably connected to the grab lug plate assembly; The grab lug plate assembly includes: a first grab lug plate and a second grab lug plate, the first grab lug plate and the second grab lug plate are arranged in parallel and spaced apart, and the first grab lug plate and the second grab lug plate are respectively provided with a first mounting hole and a second mounting hole; the sleeve assembly includes: a first sleeve and a second sleeve, the first sleeve is detachably mounted in the first mounting hole, and the second sleeve is detachably mounted in the second mounting hole; The first sleeve includes: a sleeve portion and a connecting portion, the sleeve portion is installed in the first mounting hole, the connecting portion is installed at one end of the sleeve portion, the connecting portion is detachably connected to the first grab lug plate, and the first sleeve has the same structure as the second sleeve; the axial length of the first sleeve is greater than the thickness of the first grab lug plate, and the axial length of the second sleeve is greater than the thickness of the second grab lug plate.

2. A grab bucket device according to claim 1, characterized in that: The grab bucket mounting plate is detachably mounted on one end of the grab bucket mechanism.

3. A grab bucket device according to claim 1, characterized in that: The grab mechanism comprises: a connecting pipe, a plurality of cylinder ear plate assemblies, a claw arm mounting seat, and a plurality of claw arm ear plate assemblies. The grab mounting plate is mounted on one end of the connecting pipe, and a plurality of cylinder ear plate assemblies are detachably mounted on the connecting pipe. The claw arm mounting seat is mounted on the other end of the connecting pipe, and a plurality of claw arm ear plate assemblies are detachably mounted on the claw arm mounting seat. The plurality of cylinder ear plate assemblies and the plurality of claw arm ear plate assemblies are arranged in a one-to-one correspondence in the axial direction of the connecting pipe. The plurality of cylinder ear plate assemblies are arranged along the connecting pipe. The outer wall of the tube is arranged at intervals in the circumferential direction, and a plurality of claw arm ear plate assemblies are arranged at intervals in the circumferential direction along the outer wall of the claw arm mounting seat, and the number of the cylinder ear plate assemblies is the same as the number of the claw arm ear plate assemblies; a hydraulic driving component is installed on the cylinder ear plate assembly, and a claw arm is installed on the claw arm ear plate assembly, and the hydraulic driving component is connected to the claw arm; the cylinder ear plate assembly includes a pair of cylinder ear plates arranged in parallel and at intervals, and the claw arm ear plate assembly includes a pair of claw arm ear plates arranged in parallel and at intervals; the connecting pipe and the claw arm mounting seat are both cylindrical structures.

4. A grab bucket device according to claim 3, characterized in that: A first columnar cavity and a plurality of first connecting members are provided inside the connecting pipe, a plurality of first connecting holes are provided on the cavity wall of the first columnar cavity, one ends of the plurality of first connecting members are connected to the cavity wall of the first columnar cavity, and the other ends of the plurality of first connecting members pass through the plurality of first connecting holes one by one and are threadedly connected to the plurality of cylinder ear plate assemblies; a second columnar cavity and a plurality of second connecting members are provided inside the claw arm mounting seat, a plurality of second connecting holes are provided on the cavity wall of the second columnar cavity, one ends of the plurality of second connecting members are connected to the cavity wall of the second columnar cavity, and the other ends of the plurality of second connecting members pass through the plurality of second connecting holes one by one and are threadedly connected to the plurality of claw arm ear plate assemblies; The first columnar cavity is communicated with the second columnar cavity.

5. A grab bucket device according to claim 3, characterized in that: The outer side of the connecting pipe is sleeved with a first hydraulic oil ring and a second hydraulic oil ring, the interior of the first hydraulic oil ring is provided with a first accommodating chamber for communicating with the hydraulic oil source of the engineering equipment, and a plurality of first switch valves are installed on the first hydraulic oil ring, the first end of the first switch valve is communicated with the first accommodating chamber, and the second end of the first switch valve is used to communicate with the first oil inlet of the hydraulic drive component; the interior of the second hydraulic oil ring is provided with a second accommodating chamber for communicating with the hydraulic oil source of the engineering equipment, and a plurality of second switch valves are installed on the second hydraulic oil ring, the first end of the second switch valve is communicated with the second accommodating chamber, and the second end of the second switch valve is used to communicate with the first oil outlet of the hydraulic drive component.

6. A grab bucket device according to claim 5, characterized in that: A plurality of first hydraulic connectors are detachably mounted on the first hydraulic oil ring, wherein a first end of the first hydraulic connector is communicated with the first accommodating chamber, and a second end of the first hydraulic connector is communicated with a first oil inlet of the hydraulic drive component; a plurality of second hydraulic connectors are detachably mounted on the second hydraulic oil ring, wherein a first end of the second hydraulic connector is communicated with the second accommodating chamber, and a second end of the second hydraulic connector is communicated with a first oil outlet of the hydraulic drive component.

7. A grab bucket device according to claim 6, characterized in that: A plurality of second oil outlets are provided on the cavity wall of the first accommodating cavity, and the first ends of the plurality of first hydraulic connectors are connected to the plurality of second oil outlets in a one-to-one correspondence; a plurality of second oil inlets are provided on the cavity wall of the second accommodating cavity, and the first ends of the plurality of second hydraulic connectors are connected to the plurality of second oil inlets in a one-to-one correspondence; a first blocking member is detachably provided in the second oil outlet, and a second blocking member is detachably provided in the second oil inlet.

8. An engineering equipment, characterized in that: A grab bucket device comprising any one of claims 1 to 7.

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