Hydraulic log grapple for excavator

Abstract

The utility model relates to the technical field of mechanical tools, and provides a hydraulic log grapple for an excavator, which comprises a connecting plate and a mounting shaft, the bottom end of the connecting plate is fixedly connected with a log grapple body, the top end of the connecting plate is fixedly connected with two matched fixing plates, the two fixing plates are both provided with mounting holes, and the log grapple body is fixedly connected with the mounting shaft. An inserting groove is formed in the inner side wall of the mounting hole, the mounting shaft is slidably connected with the mounting hole, a movable groove is formed in the mounting shaft, a plurality of springs are fixedly connected to the inner side wall of the movable groove, a movable plate is connected to one end of each spring, a pressing piece and an inserting block are fixedly connected to one end of each movable plate, and the inserting blocks are matched with the inserting grooves; therefore, the log grapple main body is prevented from sliding on the mounting shaft, and the purpose of improving the stability of equipment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical tools, and in particular to a hydraulic wood grabber for an excavator. Background Art

[0002] The main types of wood grabbers currently available on the market are divided into single-cylinder hydraulic wood grabbers, double-cylinder hydraulic wood grabbers, and mechanical wood grabbers based on their principles. Their structural form is mainly hollow claw teeth, and their design purpose is mainly used to grab wood. When in use, different wood grabbers need to be replaced according to different needs. Generally, wood grabbers are fixed by installing shafts, and the fixing pins are installed by opening round holes on both sides of the installation shaft. This method is inconvenient to install and does not have sufficient restrictions on the wood grabber.

[0003] After searching, China disclosed a hydraulic wood grab for excavators with patent publication number CN218148574U on December 27, 2022, which is roughly described as including a wood grab body, a connecting plate, a fixed plate and a mounting groove, a mounting shaft is arranged inside the mounting groove, and two sets of movable grooves are opened on the side mirror images corresponding to the two sets of fixed plates away from each other on the mounting shaft, and movable blocks are movably installed inside the two sets of movable grooves, and constraint rods are symmetrically and equidistantly fixed inside the movable grooves and the constraint rods pass through the movable blocks, and a deformation spring is fixedly connected between the side of the movable block and the wall of the movable groove, and the deformation spring is sleeved on the side position of the constraint rod.

[0004] Although the above-mentioned prior art solution can achieve quick installation and removal, the deformation plate and the extrusion cylinder in the device are elastic structures, which causes the wood grabber body to easily slide on the installation shaft when the device clamps heavier objects, thereby reducing the stability of the device. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a hydraulic wood grabber for an excavator to solve the problem in the background art that the wood grabber body is prone to slide on the mounting shaft, thereby reducing the stability of the equipment.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic wood grabber for an excavator, comprising a connecting plate and a mounting shaft, wherein the bottom end of the connecting plate is fixedly connected to a wood grabber body, and the top end of the connecting plate is fixedly connected to two matching fixing plates, both fixing plates are provided with mounting holes, and the inner side walls of the mounting holes are provided with slots, the mounting shaft is slidably connected to the mounting holes, and the mounting shaft is provided with a movable groove, and the inner side walls of the movable groove are fixedly connected to a plurality of springs, one end of the spring is connected to a movable plate, and one end of the movable plate is fixedly connected to a pressing piece and an insert block, and the insert block matches the slot.

[0009] By adopting the above technical solution, when installing the equipment, one end of the mounting shaft is inserted into the mounting hole, and the mounting hole squeezes the pressing piece, so that the pressing piece pushes the movable plate and the plug block to move, so that the pressing piece and the plug block sink into the movable groove, so that the mounting shaft can pass through the mounting hole, and when the pressing piece passes through the second mounting hole, the plug block coincides with the slot, the spring pushes the movable plate to move, and the movable plate pushes the plug block to be inserted into the slot, so as to achieve the purpose of fixing the mounting shaft, thereby preventing the wood grabber body from sliding on the mounting shaft, thereby achieving the purpose of improving the stability of the equipment.

[0010] Optionally, a telescopic rod is fixedly connected to the inner side wall of the movable groove, and one end of the telescopic rod is connected to the movable plate.

[0011] By adopting the above technical solution, the telescopic rod is used to limit the movable plate to prevent the movable plate from shaking or deflecting, thereby achieving the purpose of improving the stability of the equipment.

[0012] Optionally, a positioning slot is provided on the outer wall of the mounting shaft, and a positioning block matching the positioning slot is fixedly connected to the inner wall of the mounting hole.

[0013] By adopting the above technical solution, the positioning groove cooperates with the positioning block to limit the installation shaft and prevent the installation shaft from rotating, so that when the installation shaft is plugged in, the position of the plug block is aligned with the slot, so that the plug block can be smoothly plugged into the inside of the slot.

[0014] Optionally, a mounting groove is provided on the pressing member, and a lubrication roller is rotatably connected inside the mounting groove.

[0015] By adopting the above technical solution, the lubricating roller is used to reduce the friction between the pressing piece and the mounting hole, thereby making it easier for personnel to plug in the mounting shaft, thereby achieving the purpose of saving manpower and improving work efficiency.

[0016] (III) Beneficial effects

[0017] In summary, the utility model includes at least one of the following beneficial technical effects:

[0018] The hydraulic wood grabber for the excavator, when installing the equipment, insert one end of the installation shaft into the installation hole, the installation hole squeezes the pressing piece, so that the pressing piece pushes the movable plate and the plug block to move, so that the pressing piece and the plug block sink into the movable groove, so that the installation shaft can pass through the installation hole, when the pressing piece passes through the second installation hole, the plug block coincides with the slot, the spring pushes the movable plate to move, and the movable plate pushes the plug block to be inserted into the slot, so as to achieve the purpose of fixing the installation shaft, thereby preventing the wood grabber body from sliding on the installation shaft, thereby achieving the purpose of improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a first side structural schematic diagram of the utility model;

[0020] Figure 2 For this utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0021] Figure 3 This is a schematic diagram of the first cross-sectional structure of the utility model;

[0022] Figure 4 For this utility model Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0023] In the figure: 1. connecting plate; 2. mounting shaft; 3. wood grabber body; 4. fixing plate; 5. slot; 6. movable slot; 7. spring; 8. movable plate; 9. pressing piece; 10. insert block; 11. telescopic rod; 12. positioning slide groove; 13. positioning block; 14. lubricating roller. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] Reference Figure 1-Figure 4A hydraulic wood grabber for an excavator comprises a connecting plate 1, a mounting shaft 2, a wood grabber body 3 is fixedly connected to the bottom end of the connecting plate 1, two matching fixing plates 4 are fixedly connected to the top end of the connecting plate 1, mounting holes are provided on the two fixing plates 4, slots 5 are provided on the inner side walls of the mounting holes, the mounting shaft 2 is slidably connected to the mounting holes, a movable slot 6 is provided on the mounting shaft 2, a plurality of springs 7 are fixedly connected to the inner side walls of the movable slots 6, one end of the spring 7 is connected to a movable plate 8, one end of the movable plate 8 is fixedly connected to a pressing piece 9 and an insert block 10, the insert block 10 matches the slot 5, and the movable plate 8 is fixedly connected to the movable plate 8. When installing the equipment, insert one end of the mounting shaft 2 into the mounting hole, and the mounting hole squeezes the pressing piece 9, so that the pressing piece 9 pushes the movable plate 8 and the plug block 10 to move, so that the pressing piece 9 and the plug block 10 sink into the movable groove 6, so that the mounting shaft 2 can pass through the mounting hole. When the pressing piece 9 passes through the second mounting hole, the plug block 10 coincides with the slot 5, and the spring 7 pushes the movable plate 8 to move, and the movable plate 8 pushes the plug block 10 to be inserted into the slot 5, thereby achieving the purpose of fixing the mounting shaft 2, thereby preventing the wood grabber body from sliding on the mounting shaft 2, thereby achieving the purpose of improving the stability of the equipment.

[0027] Reference Figure 3 and Figure 4 A telescopic rod 11 is fixedly connected to the inner wall of the movable groove 6, one end of the telescopic rod 11 is connected to the movable plate 8, and the telescopic rod 11 is used to limit the movable plate 8 to prevent the movable plate 8 from shaking or deflecting, thereby achieving the purpose of improving the stability of the equipment.

[0028] Reference Figure 1 and Figure 2 A positioning groove 12 is provided on the outer wall of the mounting shaft 2, and a positioning block 13 that cooperates with the positioning groove 12 is fixedly connected to the inner wall of the mounting hole. The positioning groove 12 cooperates with the positioning block 13 to limit the mounting shaft 2 to prevent the mounting shaft 2 from rotating, so that when the mounting shaft 2 is plugged in, the position of the plug block 10 is aligned with the slot 5, so that the plug block 10 can be smoothly plugged into the inside of the slot 5.

[0029] Reference Figure 1-Figure 4 A mounting groove is provided on the pressing member 9, and a lubricating roller 14 is rotatably connected inside the mounting groove. The lubricating roller 14 is used to reduce the friction between the pressing member 9 and the mounting hole, so as to facilitate personnel to plug in the mounting shaft 2, thereby saving manpower and improving work efficiency.

[0030] In summary, the working principle and working process of the hydraulic wood grabber for excavators are as follows: when using the equipment, first, when installing the equipment, one end of the mounting shaft 2 is inserted into the mounting hole, and the mounting hole squeezes the pressing piece 9, so that the pressing piece 9 pushes the movable plate 8 and the plug block 10 to move, so that the pressing piece 9 and the plug block 10 sink into the movable groove 6, so that the mounting shaft 2 can pass through the mounting hole. When the pressing piece 9 passes through the second mounting hole, the plug block 10 coincides with the slot 5, the spring 7 pushes the movable plate 8 to move, and the movable plate 8 pushes the plug block 10 to be plugged into the slot 5, so as to achieve the purpose of fixing the mounting shaft 2, thereby preventing the wood grabber body from being on the mounting shaft 2. The movable plate 8 is slided to achieve the purpose of improving the stability of the equipment. The telescopic rod 11 is used to limit the movable plate 8 to prevent the movable plate 8 from shaking or deflecting, so as to achieve the purpose of improving the stability of the equipment. The positioning slide groove 12 cooperates with the positioning block 13 to limit the installation shaft 2 to prevent the installation shaft 2 from rotating, so that when the installation shaft 2 is plugged in, the position of the plug block 10 is aligned with the slot 5, so that the plug block 10 can be smoothly plugged into the inside of the slot 5. The lubrication roller 14 is used to reduce the friction between the pressing piece 9 and the mounting hole, so as to facilitate personnel to plug in the installation shaft 2, so as to save manpower and improve work efficiency.

[0031] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A hydraulic wood grabber for an excavator, comprising a connecting plate (1), characterized in that: The invention comprises a mounting shaft (2), the bottom end of the connecting plate (1) is fixedly connected to a wood grabber body (3), the top end of the connecting plate (1) is fixedly connected to two matching fixing plates (4), both fixing plates (4) are provided with mounting holes, the inner side walls of the mounting holes are provided with slots (5), the mounting shaft (2) is slidably connected to the mounting holes, the mounting shaft (2) is provided with a movable groove (6), the inner side walls of the movable groove (6) are fixedly connected to a plurality of springs (7), one end of the spring (7) is connected to a movable plate (8), one end of the movable plate (8) is fixedly connected to a pressing piece (9) and an insert block (10), and the insert block (10) matches the slot (5).

2. The hydraulic wood grabber for an excavator according to claim 1, characterized in that: A telescopic rod (11) is fixedly connected to the inner side wall of the movable groove (6), and one end of the telescopic rod (11) is connected to the movable plate (8).

3. The hydraulic wood grabber for an excavator according to claim 1, characterized in that: A positioning slot (12) is provided on the outer wall of the installation shaft (2), and a positioning block (13) matching the positioning slot (12) is fixedly connected to the inner wall of the installation hole.

4. The hydraulic wood grabber for an excavator according to claim 1, characterized in that: The pressing member (9) is provided with a mounting groove, and a lubrication roller (14) is rotatably connected inside the mounting groove.

Images