Electrically powered grab for a crane

Abstract

The utility model discloses a crane electric grab bucket detachable cutting edge relates to crane electric grab bucket technical field, including two cutting edge subassembly of symmetrical setting on two mutually cooperate electric grab bucket mouth, and each cutting edge subassembly detachable form sets up on corresponding electric grab bucket mouth, and two cutting edge subassembly work mutually cooperate, each cutting edge subassembly includes the bottom plate of setting in corresponding electric grab bucket mouth edge place, detachable cutting edge panel of detachable setting in the bottom plate edge place and the panel reinforcing rib of setting on detachable cutting edge panel, the utility model relates to a rationally, when grab bucket operation, detachable cutting edge panel wear -resisting reinforcing rib directly contacts material, and bears main wear and tear. When the unilateral reinforcing rib of panel wears, through replacing panel direction or overall replacing panel, realizes quick repair, and need not cutting welding.

Description

Technical Field

[0001] This utility model relates to the field of electric grab bucket technology for cranes, and more specifically to the field of detachable cutting edge technology for electric grab buckets for cranes. Background Technology

[0002] Wear and tear at the bucket opening is a long-standing technical problem during the use of electric grab buckets. Historical maintenance data shows that the bucket opening requires a major overhaul involving cutting and welding every two years. This maintenance necessitates transporting the grab bucket to a suitable location for operation, and a single grab bucket overhaul takes 4-6 hours, leading to the following issues:

[0003] 1. Long maintenance cycle: Transportation and welding operations take a long time, affecting production efficiency;

[0004] 2. High maintenance costs: After traditional welding repair, the bucket opening is prone to wear again, requiring repeated repairs;

[0005] 3. High safety risks: Frequent transportation poses safety hazards, and the welding process may damage the grab bucket structure.

[0006] Existing technologies cannot fundamentally solve the problem of blade wear, and there is an urgent need to design a detachable and easy-to-maintain blade structure. Utility Model Content

[0007] The purpose of this utility model is to solve the above-mentioned technical problems by providing a detachable cutting edge for an electric grab bucket for cranes.

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] This utility model provides a detachable cutting edge for an electric grab bucket of a crane, including two cutting edge components symmetrically arranged on two cooperating electric grab bucket openings, and each cutting edge component is detachably arranged on the corresponding electric grab bucket opening, and the two cutting edge components cooperate with each other when working.

[0010] Each cutting edge assembly includes a base plate disposed at the edge of the corresponding electric grab bucket opening, a detachable cutting edge panel disposed at the edge of the base plate, and panel reinforcing ribs disposed on the detachable cutting edge panel;

[0011] Specifically, it can be used in reverse. After the detachable cutting edge panel wears out, the connector can be removed and the detachable cutting edge panel can be rotated 180° and reinstalled. The unworn side of the detachable cutting edge panel can be used to continue working, thus extending its service life.

[0012] During grab operation, the detachable blade panel's wear-resistant reinforcing ribs directly contact the material and bear the main wear. When one side of the panel's reinforcing ribs wears out, it can be quickly repaired by changing the panel's orientation or replacing the entire panel, without the need for cutting or welding.

[0013] Optional features: The detachable cutting edge panel can be designed in a stepped or serrated shape to adapt to different material properties; a buffer pad can be added between the base plate and the detachable cutting edge panel to reduce impact damage.

[0014] Installation steps:

[0015] S1. Weld the base plate to the edge of the grab bucket opening;

[0016] S2. The detachable cutting edge panel is fixed to the base plate using mortise and tenon joints and bolts to ensure a tight fit.

[0017] S3. Regularly check the tightness of the fixing bolts. If they wear out, remove the detachable cutting edge panel and install it in the opposite direction.

[0018] In one embodiment, the base plate is made of wear-resistant 304 stainless steel and is fixed to the edge of the electric grab bucket opening by welding.

[0019] Specifically, the base plate is made of wear-resistant 304 stainless steel and is welded and fixed to the edge of the electric grab bucket mouth as a base to support the detachable blade.

[0020] In one embodiment, each base plate is provided with an outwardly protruding positioning mounting protrusion that extends along the edge of the electric grab bucket opening.

[0021] In one embodiment, each detachable cutting edge panel includes a strip-shaped mounting plate with a positioning groove at the bottom that mates with a positioning mounting protrusion. The strip-shaped mounting plate is detachably mounted on the positioning mounting protrusion by a locking assembly.

[0022] In one embodiment, the cross-section of the positioning mounting protrusion is a trapezoidal structure with a larger top and a smaller bottom, and the cross-section of the positioning groove is a trapezoidal groove. The trapezoidal structure and the trapezoidal groove form a mortise and tenon structure.

[0023] In one embodiment, the strip mounting plate is made of wear-resistant 304 stainless steel.

[0024] In one embodiment, there are four panel reinforcing ribs, with two ribs forming a group. The two panel reinforcing ribs belonging to the same group are welded to both sides of the corresponding strip mounting plate. The two panel reinforcing ribs belonging to the same group are parallel to each other, and their direction is parallel to the edge of the electric grab bucket opening.

[0025] In one embodiment, the locking assembly consists of multiple equally spaced fixing bolts, all of which mount the strip mounting plate onto the positioning mounting protrusion.

[0026] Specifically, the strip mounting plate is installed on the positioning mounting protrusion using a mortise and tenon structure and six 12mm high-strength stainless steel fixing bolts (e.g. Figure 1 (As shown).

[0027] In one embodiment, the strip mounting plate of the detachable cutting edge panel is 15mm thick, 1060mm long, and 80mm wide, and the spacing between two adjacent fixing bolts is ≤200mm.

[0028] 1. In one embodiment, the base plate has a thickness of 10mm, a length of 1060mm, and a width of 60mm. A 12mm bolt internal thread hole is provided on the base plate, and the distance between two adjacent bolt internal thread holes is ≤200mm.

[0029] Specifically, the fixing bolts are made of high-strength stainless steel and are equipped with anti-loosening washers.

[0030] The beneficial effects of this utility model are as follows:

[0031] 1. This utility model is reasonably designed and can be used in reverse. After the detachable cutting edge panel is worn, the connecting parts can be removed and the detachable cutting edge panel can be rotated 180° and reinstalled. The unworn surface of the detachable cutting edge panel can be used to continue working, thus extending its service life.

[0032] 2. During grab bucket operation, the detachable blade panel's wear-resistant reinforcing ribs directly contact the material and bear the main wear. When one side of the panel's reinforcing ribs wears out, it can be quickly repaired by changing the panel's orientation or replacing the entire panel, without the need for cutting or welding.

[0033] 3. Optional solutions: The detachable cutting edge panel can be designed in a stepped or serrated shape to adapt to different material properties; a buffer pad can be added between the base plate and the detachable cutting edge panel to reduce impact damage. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a front view of a detachable cutting edge of an electric grab bucket;

[0036] Figure 2 yes Figure 1 A sectional view;

[0037] Reference numerals: 1. Electric grab bucket opening; 2. Panel reinforcing rib; 3. Detachable cutting edge panel; 4. Base plate; 5. Fixing bolts; 6. Mortise and tenon structure. Detailed Implementation

[0038] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. 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.

[0042] Example 1

[0043] like Figures 1 to 2 As shown, this embodiment provides a detachable cutting edge for a crane electric grab bucket, including two cutting edge components symmetrically arranged on two cooperating electric grab bucket openings 1, and each cutting edge component is detachably arranged on the corresponding electric grab bucket opening 1, and the two cutting edge components cooperate with each other when working.

[0044] Each cutting edge assembly includes a base plate 4 disposed at the edge of the corresponding electric grab bucket opening 1, a detachable cutting edge panel 3 disposed at the edge of the base plate 4, and a panel reinforcing rib 2 disposed on the detachable cutting edge panel 3;

[0045] Specifically, it can be used in reverse. After the detachable cutting edge panel 3 wears out, the connector can be removed and the detachable cutting edge panel 3 can be rotated 180° and reinstalled. The unworn surface of the detachable cutting edge panel 3 can be used to continue working, thus extending its service life.

[0046] During grab operation, the detachable cutting edge panel 3, with its wear-resistant reinforcing ribs, directly contacts the material and bears the main wear. When one side of the panel's reinforcing ribs wears out, it can be quickly repaired by changing the panel's orientation or replacing the entire panel, without the need for cutting or welding.

[0047] Optional features: The detachable cutting edge panel 3 can be designed in a stepped or serrated shape to adapt to different material properties; a buffer pad can be added between the base plate 4 and the detachable cutting edge panel 3 to reduce impact damage.

[0048] Installation steps:

[0049] S1. Weld the base plate 4 to the edge of the grab bucket opening;

[0050] S2. Fix the detachable cutting edge panel 3 to the base plate 4 using the tenon and mortise structure 6 and bolts to ensure a tight fit.

[0051] S3. Regularly check the tightness of the fixing bolts 5. After they wear out, remove the detachable cutting edge panel 3 and install it in the opposite direction.

[0052] Example 2

[0053] like Figures 1 to 2 As shown, this embodiment provides a detachable cutting edge for a crane electric grab bucket, including two cutting edge components symmetrically arranged on two cooperating electric grab bucket openings 1, and each cutting edge component is detachably arranged on the corresponding electric grab bucket opening 1, and the two cutting edge components cooperate with each other when working.

[0054] Each cutting edge assembly includes a base plate 4 disposed at the edge of the corresponding electric grab bucket opening 1, a detachable cutting edge panel 3 disposed at the edge of the base plate 4, and a panel reinforcing rib 2 disposed on the detachable cutting edge panel 3;

[0055] The base plate 4 is made of wear-resistant 304 stainless steel and is fixed to the edge of the electric grab bucket opening 1 by welding.

[0056] Specifically, the base plate 4 is made of wear-resistant 304 stainless steel and is welded and fixed to the edge of the electric grab bucket opening 1 as a base to support the detachable blade.

[0057] Example 3

[0058] like Figures 1 to 2As shown, this embodiment provides a detachable cutting edge for a crane electric grab bucket, including two cutting edge components symmetrically arranged on two cooperating electric grab bucket openings 1, and each cutting edge component is detachably arranged on the corresponding electric grab bucket opening 1, and the two cutting edge components cooperate with each other when working.

[0059] Each cutting edge assembly includes a base plate 4 disposed at the edge of the corresponding electric grab bucket opening 1, a detachable cutting edge panel 3 disposed at the edge of the base plate 4, and a panel reinforcing rib 2 disposed on the detachable cutting edge panel 3;

[0060] The base plate 4 is made of wear-resistant 304 stainless steel and is fixed to the edge of the electric grab bucket opening 1 by welding.

[0061] Each base plate 4 is provided with an outwardly protruding positioning and mounting protrusion that extends along the edge of the electric grab bucket opening 1.

[0062] Each detachable cutting edge panel 3 includes a strip-shaped mounting plate. The bottom of the strip-shaped mounting plate is provided with a positioning groove that mates with the positioning mounting protrusion. The strip-shaped mounting plate is detachably mounted on the positioning mounting protrusion by a locking assembly.

[0063] The cross-section of the positioning and installation protrusion is a trapezoidal structure with a larger top and a smaller bottom. The cross-section of the positioning groove is a trapezoidal groove. The trapezoidal structure and the trapezoidal groove form a mortise and tenon structure.

[0064] Example 4

[0065] This utility model is a further optimization based on Embodiment 3, specifically:

[0066] The strip mounting plate is made of wear-resistant 304 stainless steel.

[0067] There are four panel reinforcing ribs 2, with two ribs forming a group. The two panel reinforcing ribs 2 belonging to the same group are welded to both sides of the corresponding strip mounting plate. The two panel reinforcing ribs 2 belonging to the same group are parallel to each other, and their direction is parallel to the edge of the electric grab bucket opening 1.

[0068] The locking assembly consists of multiple equally spaced fixing bolts 5, all of which mount the strip-shaped mounting plate onto the positioning mounting protrusion.

[0069] Specifically, the strip mounting plate is installed on the positioning mounting protrusion using a tenon and mortise structure 6 and 6 12mm high-strength stainless steel fixing bolts 5 (e.g., Figure 1 (As shown).

[0070] Example 5

[0071] This utility model is a further optimization based on Embodiment 4, specifically:

[0072] The strip mounting plate of the detachable blade panel 3 is 15mm thick, 1060mm long, and 80mm wide, and the spacing between two adjacent fixing bolts 5 is ≤200mm.

[0073] The base plate 4 is 10mm thick, 1060mm long, and 60mm wide. 12mm internal threaded holes for bolts are opened on the base plate 4, and the distance between two adjacent internal threaded holes is ≤200mm.

[0074] Specifically, the fixing bolt 5 is made of high-strength stainless steel and is equipped with anti-loosening washers.

Claims

1. A crane motorized grab detachable blade, characterized by, It includes two cutting edge components symmetrically arranged on two mutually cooperating electric grab bucket openings (1), and each cutting edge component is detachably arranged on the corresponding electric grab bucket opening (1), and the two cutting edge components cooperate with each other when working; Each of the cutting edge components includes a base plate (4) disposed at the edge of the corresponding electric grab bucket opening (1), a detachable cutting edge panel (3) disposed at the edge of the base plate (4), and a panel reinforcing rib (2) disposed on the detachable cutting edge panel (3).

2. A crane motorized grab detachable blade according to claim 1, characterized in that, The base plate (4) is made of wear-resistant 304 stainless steel and is fixed to the edge of the electric grab bucket opening (1) by welding.

3. A crane motorised grab detachable blade according to claim 2, characterised in that, Each of the base plates (4) is provided with an outwardly protruding positioning and mounting protrusion, which extends along the edge of the electric grab bucket opening (1).

4. The detachable cutting edge of an electric grab bucket for cranes according to claim 3, characterized in that, Each of the detachable blade panel (3) includes a strip-shaped mounting plate. The bottom of the strip-shaped mounting plate is provided with a positioning groove that cooperates with the positioning mounting protrusion. The strip-shaped mounting plate is detachably mounted on the positioning mounting protrusion by a locking assembly.

5. The detachable cutting edge of an electric grab bucket for cranes according to claim 4, characterized in that, The cross-section of the positioning and mounting protrusion is a trapezoidal structure with a larger top and a smaller bottom, and the cross-section of the positioning groove is a trapezoidal groove. The trapezoidal structure and the trapezoidal groove form a mortise and tenon structure (6).

6. The detachable cutting edge of an electric grab bucket for cranes according to claim 4, characterized in that, The strip mounting plate is made of wear-resistant 304 stainless steel.

7. The detachable cutting edge of an electric grab bucket for cranes according to claim 4, characterized in that, The number of panel reinforcing ribs (2) is four, with two ribs forming a group. The two panel reinforcing ribs (2) belonging to the same group are welded to the corresponding sides of the strip-shaped mounting plate. The two panel reinforcing ribs (2) belonging to the same group are parallel to each other, and the direction of the two panel reinforcing ribs (2) belonging to the same group is parallel to the edge of the electric grab bucket opening (1).

8. The detachable cutting edge of an electric grab bucket for cranes according to claim 4, characterized in that, The locking assembly consists of multiple equally spaced fixing bolts (5), all of which mount the strip mounting plate onto the positioning mounting protrusion.

9. A detachable cutting edge for an electric grab bucket of a crane according to claim 8, characterized in that, The strip mounting plate of the detachable blade panel (3) has a thickness of 15mm, a length of 1060mm, a width of 80mm, and a spacing of ≤200mm between two adjacent fixing bolts (5).

10. A detachable cutting edge for an electric grab bucket of a crane according to claim 8, characterized in that, The base plate (4) has a thickness of 10mm, a length of 1060mm, and a width of 60mm. A 12mm bolt internal thread hole is opened on the base plate (4), and the distance between two adjacent bolt internal thread holes is ≤200mm.

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