A right or wrong tooth wood clamping structure for a loader

CN224884822UActive Publication Date: 2026-10-23LONKING FUJIAN MACHINERY
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Patent Information

Application Number
CN202522347255.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-05
Publication Date
2026-10-23
Estimated Expiration
2035-11-05

AI Technical Summary

Technical Problem

[0004]为了弥补以上不足,本实用新型提供了一种用于装载机的对错齿夹木结构,旨在改善现有技术中无法对下齿齿距进行调节,不能适配不同规格的上齿,通用性较低,配件成本较高的问题

Benefits of technology

[0021]1、本实用新型中,当需要调节下齿的齿距时,按压滑块一,然后移动下叉体,下叉体带动滑块二移动,滑动到合适位置后,弹簧柱滑入定位孔中,将下叉体固定住,从而起到了对下齿齿距进行调节的有益效果,适配了不同规格的上齿,提升了通用性,降低了配件成本,提高了实用性。

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Abstract

The utility model relates to the technical field of loader, disclose a right and wrong tooth wood -clamping structure for loader, including fork body frame, the bottom fixedly connected with the bottom plate of fork body frame, the outer wall top of bottom plate is established with the guide slot, the inner wall bottom of bottom plate is established with the sliding slot no.
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Description

Technical Field

[0001] This utility model relates to the field of loader technology, and in particular to a staggered toothed wood clamping structure for loaders. Background Technology

[0002] As a widely used earthmoving and rock-moving construction machine in highway, railway, building, hydropower, port, and mining construction projects, the loader's technical field covers mechanical design, hydraulic transmission, intelligent control, and materials science. In recent years, it has been developing towards electrification, intelligence, large-scale and miniaturization. By integrating advanced sensing technology, intelligent control system and data analysis platform, it can achieve autonomous perception, decision-making and execution to improve operation efficiency, reduce operating costs and enhance construction safety. Against the backdrop of the continuous evolution of loader technology towards intelligence and efficiency, a staggered tooth wood-clamping structure has emerged. Through its unique staggered tooth biting mechanism, it significantly improves the stability and operation efficiency of grabbing long materials, becoming an important technological breakthrough in the multi-functional development of loaders.

[0003] When loaders need to efficiently and stably grab and transport timber of varying lengths and irregular shapes in scenarios such as forestry and timber processing, a staggered tooth clamping structure is required. This structure is an innovative working device specifically designed for loaders. Its core lies in the staggered arrangement and interlocking design of the upper and lower sets of clamping teeth, which creates multi-point staggered contact when grabbing long materials. This effectively increases friction and disperses gripping pressure, thereby significantly improving the stability and reliability of gripping. It is especially suitable for handling materials with irregular shapes, smooth surfaces, and easy slippage. At the same time, this structure also features a large opening and closing range and strong adaptability, which can greatly improve the operating efficiency and safety of loaders in forestry, construction, and other fields. However, most existing structures use a fixed lower tooth pitch, which cannot be adjusted. This makes them unable to adapt to different specifications of upper teeth, resulting in low versatility, high spare parts costs, and reduced practicality. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a staggered toothed wood clamping structure for loaders, aiming to improve the problems of existing technology, such as the inability to adjust the pitch of the lower tooth, the inability to adapt to different specifications of upper teeth, low versatility, and high cost of accessories.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fork frame for a loader, comprising a base plate fixedly connected to the bottom of the fork frame, a guide groove formed on the top of the outer wall of the base plate, a sliding groove 1 formed on the bottom of the inner wall of the base plate, a sliding groove 2 formed on the front side of the inner wall of the sliding groove 1, a plurality of positioning holes formed on the front side of the outer wall of the base plate, a spring column slidably connected to the inner wall of the positioning hole, a slider 1 fixedly connected to the rear end of the spring column, a slider 2 fixedly connected to the top of the slider 1, a lower fork fixedly connected to the top of the slider 2, and a rotating mechanism fixedly connected to the bottom of the inner wall of the fork frame, the rotating mechanism being used to flip the upper fork.

[0006] As a further description of the above technical solution:

[0007] The rotating mechanism includes a fixed plate, the bottom of which is fixedly connected to the bottom of the inner wall of the fork frame. The inner wall of the fixed plate has multiple circular holes, and the inner wall of each circular hole has a positioning groove. A rotating shaft is rotatably connected to the inner wall of the circular holes. A turntable is fixedly connected to the rear end of the rotating shaft. A positioning groove is provided on the inner wall of the rotating shaft. An upper fork is fixedly connected to the front end of the rotating shaft. Multiple toothed blocks are fixedly connected to the top of the upper fork. A pin is slidably connected to the inner wall of the positioning groove.

[0008] As a further description of the above technical solution:

[0009] Side plates are fixedly connected to both the left and right sides of the fork frame, and a warning sticker is fixedly connected to the left side of the fork frame near the edge.

[0010] As a further description of the above technical solution:

[0011] A baffle is fixedly connected to the top of the fork frame, and a support plate is fixedly connected to the bottom rear side of the baffle.

[0012] As a further description of the above technical solution:

[0013] Multiple connecting plates are fixedly connected to the rear side of the fork frame, and multiple threaded holes are opened on the inner wall of the connecting plates.

[0014] As a further description of the above technical solution:

[0015] A pressure gauge is fixedly connected to the right side of the fork frame near the edge, and a reinforcing rib is fixedly connected to the top rear side of the fork frame.

[0016] As a further description of the above technical solution:

[0017] A collection groove is provided on the bottom left side of the inner wall of the fork frame, and a flow guide hole is provided on the bottom right side of the inner wall of the fork frame.

[0018] As a further description of the above technical solution:

[0019] The inner wall of the first slide groove is slidably connected to the outer wall of the first slider, and the outer wall of the second slider is slidably connected to the inner wall of the guide groove.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when it is necessary to adjust the pitch of the lower tooth, press the slider one, and then move the lower fork body. The lower fork body drives the slider two to move. After sliding to the appropriate position, the spring column slides into the positioning hole and fixes the lower fork body, thereby achieving the beneficial effect of adjusting the pitch of the lower tooth. It is compatible with upper teeth of different specifications, improves versatility, reduces the cost of accessories, and improves practicality.

[0022] 2. In this utility model, when encountering rough logs, first pull out the pin, then rotate the turntable 90 degrees, the rotating shaft drives the upper fork body to rotate 90 degrees, and fix the rotating shaft. At this time, the tooth block is facing the rough log, thus achieving the beneficial effect of flipping the upper tooth. One tooth has multiple uses, adapts to multiple operation scenarios, extends the service life of the parts, improves the operation efficiency, and enhances practicality. Attached Figure Description

[0023] Figure 1 This is a perspective view of the front side of the fork frame of a loader with a staggered toothed wooden clamping structure proposed in this utility model.

[0024] Figure 2 This is a partial structural diagram of the base plate of a loader with a staggered toothed wooden clamp structure proposed in this utility model;

[0025] Figure 3 This is a cross-sectional view of a staggered toothed wood clamping structure for a loader proposed in this utility model;

[0026] Figure 4 This is a partial structural diagram of the lower fork of a loader with a staggered toothed wood clamping structure proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of the fixing plate of the staggered toothed wooden clamp structure for a loader proposed in this utility model;

[0028] Figure 6 This is a partial structural diagram of the shaft of a loader with a staggered toothed wood clamping structure proposed in this utility model.

[0029] Figure 7This is a partial structural diagram of the guide hole for a staggered toothed wood clamping structure for a loader, as proposed in this utility model.

[0030] Figure 8 This is a partial structural diagram of the reinforcing ribs of a staggered toothed wooden clamp structure for a loader proposed in this utility model.

[0031] Legend:

[0032] 1. Fork frame; 2. Rotating mechanism; 201. Fixing plate; 202. Circular hole; 203. Positioning groove one; 204. Pin; 205. Rotating shaft; 206. Positioning groove two; 207. Turntable; 208. Upper fork; 209. Tooth block; 3. Base plate; 4. Guide groove; 5. Slide groove one; 6. Slide groove two; 7. Positioning hole; 8. Spring column; 9. Slider one; 10. Slider two; 11. Lower fork; 12. Pressure gauge; 13. Side plate; 14. Baffle; 15. Flow guide hole; 16. Collection groove; 17. Support plate; 18. Reinforcing rib; 19. Connecting plate; 20. Threaded hole; 21. Warning sticker. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The present invention provides an embodiment of a fork frame 1 for a loader, comprising a base plate 3 fixedly connected to the bottom of the fork frame 1, a guide groove 4 on the top of the outer wall of the base plate 3, a sliding groove 5 on the bottom of the inner wall of the base plate 3, a sliding groove 6 on the front side of the inner wall of the sliding groove 5, a plurality of positioning holes 7 on the front side of the outer wall of the base plate 3, a spring column 8 slidably connected to the inner wall of the positioning hole 7, a slider 9 fixedly connected to the rear end of the spring column 8, a slider 10 fixedly connected to the top of the slider 9, a lower fork 11 fixedly connected to the top of the slider 10, and a rotating mechanism 2 fixedly connected to the bottom of the inner wall of the fork frame 1 for flipping the upper teeth.

[0035] Specifically, the entire staggered toothed wooden clamp structure uses the fork frame 1 as the core supporting component. The fork frame 1 provides a stable installation foundation. The bottom of the fork frame 1 is fixedly connected to the base plate 3. The base plate 3 not only serves as a connection and load-bearing component but also provides a track and space for the movement of subsequent components. A guide groove 4 is provided on the top of the outer wall of the base plate 3, providing directional guidance. A sliding groove 5 is provided on the bottom of the inner wall of the base plate 3. A second sliding groove 6 is further provided on the front side of the inner wall of the sliding groove 5. Multiple positioning holes 7 are evenly distributed on the front side of the outer wall of the base plate 3. The positioning holes 7 are used to determine the fixed position of the components and ensure that adjustments are made during installation. Once the appropriate tooth pitch is reached, it can be stably locked. A spring column 8 is slidably connected to the inner wall of the positioning hole 7. The spring column 8 has the characteristic of elastic extension and contraction. It can be compressed when subjected to external force and return to its original shape after the external force is removed. A slider 1 9 is fixedly connected to the rear end of the spring column 8. The slider 1 9 can slide in the slide groove 1 5 and the slide groove 2 6. Its movement is restricted and guided by these two slide grooves. A slider 2 10 is fixedly connected to the top of the slider 1 9. The slider 2 10 is closely connected to the slider 1 9 and moves synchronously. A lower fork 11 is fixedly connected to the top of the slider 2 10. The lower fork 11 is the part that directly contacts the wood and performs the clamping action.

[0036] Please see the appendix Figure 1 Appendix Figure 5 and attached Figure 6 The rotating mechanism 2 includes a fixed plate 201. The bottom of the fixed plate 201 is fixedly connected to the bottom of the inner wall of the fork frame 1. The inner wall of the fixed plate 201 has multiple circular holes 202. The inner wall of the circular holes 202 has a positioning groove 203. The inner wall of the circular holes 202 is rotatably connected to a rotating shaft 205. The rear end of the rotating shaft 205 is fixedly connected to a turntable 207. The inner wall of the rotating shaft 205 has a positioning groove 206. The front end of the rotating shaft 205 is fixedly connected to an upper fork 208. The top of the upper fork 208 is fixedly connected to multiple toothed blocks 209. The inner wall of the positioning groove 206 is slidably connected to a pin 204.

[0037] Specifically, the fixing plate 201 provides stable support for other components. The bottom of the fixing plate 201 is fixedly connected to the bottom of the inner wall of the fork frame 1. The inner wall of the fixing plate 201 has multiple circular holes 202. The circular holes 202 provide specific space for the installation and rotation of the rotating shaft 205, and also limit the range of movement of the rotating shaft 205, ensuring that the rotating shaft 205 can only rotate within the specified track and will not deviate or move excessively. The inner wall of the circular holes 202 also has a positioning groove 203, which is for the subsequent insertion of the pin 204. The fixed position provides a precise location. The rotating shaft 205 is the core of the rotating mechanism 2. The rotating shaft 205 is rotatably connected to the inner wall of the circular hole 202. This rotatable connection allows the rotating shaft 205 to rotate freely within the circular hole 202, while being constrained by the circular hole 202, ensuring the stability and accuracy of the rotation. The rear end of the rotating shaft 205 is fixedly connected to a turntable 207. The turntable 207 provides an easy point for the operator to apply force. When it is necessary to rotate the rotating shaft 205, the operator only needs to hold the turntable 207 and apply a certain force to easily drive the rotating shaft. The shaft 205 rotates, and a second positioning groove 206 is provided on the inner wall of the shaft 205. The second positioning groove 206 and the first positioning groove 203 cooperate with each other to form the insertion channel for the pin 204. When the shaft 205 rotates to the appropriate position, the pin 204 is simultaneously inserted into the second positioning groove 206 and the first positioning groove 203, which can firmly fix the shaft 205 on the fixing plate 201, preventing it from rotating due to external forces during operation and ensuring the stability of the upper gear. The front end of the shaft 205 is fixedly connected to the upper fork body 208, which directly contacts the wood and performs clamping action. The upper fork 208 is fixedly connected to a number of toothed blocks 209. When facing rough logs, the sharp shape of the toothed blocks 209 can penetrate into the surface of the wood, increase friction, and ensure a firm grip. When facing finely processed timber, the other smooth surface of 208 can avoid damaging the surface of the wood while providing sufficient gripping force. The pin 204 plays a positioning and locking role in the entire rotating mechanism 2. When the rotating shaft 205 is rotated to the desired position, the pin 204 is inserted into the positioning groove 206 and the positioning groove 203 to firmly fix it on the fixing plate 201.

[0038] Please see the appendix Figure 1 Appendix Figure 7 and attached Figure 8 Side plates 13 are fixedly connected to both the left and right sides of the fork frame 1. A warning sticker 21 is fixedly connected to the left side of the fork frame 1 near the edge. A baffle 14 is fixedly connected to the top of the fork frame 1. A support plate 17 is fixedly connected to the bottom rear side of the baffle 14. Multiple connecting plates 19 are fixedly connected to the rear side of the fork frame 1. Multiple threaded holes 20 are opened on the inner wall of the connecting plate 19.

[0039] Specifically, the side plate 13 provides lateral support, the warning sticker 21 serves as a warning, the baffle 14 is used to block dust, the support plate 17 provides support, the connecting plate 19 serves as a connection, and the threaded hole 20 serves as a fixation.

[0040] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 8 A pressure gauge 12 is fixedly connected to the right side of the fork frame 1 near the edge. A reinforcing rib 18 is fixedly connected to the top rear side of the fork frame 1. A collection groove 16 is opened on the bottom left side of the inner wall of the fork frame 1. A guide hole 15 is opened on the bottom right side of the inner wall of the fork frame 1. The middle part of the inner wall of the slide groove 1 5 is slidably connected to the outer wall of the slider 1 9. The outer wall of the slider 2 10 is slidably connected to the inner wall of the guide groove 4.

[0041] Specifically, pressure gauge 12 is used to detect clamping force, reinforcing rib 18 serves to strengthen fixation, collection groove 16 is used to collect debris, guide hole 15 is used for drainage in rainy weather, slider 1 9 can slide in slide groove 1 5, and slider 2 10 can slide in guide groove 4.

[0042] Working principle: When it is necessary to adjust the pitch of the lower tooth, press the slider 19 so that it slides out of the positioning hole 7. At this time, the slider 19 is located in the slide groove 26. Then move the lower fork 11. The lower fork 11 drives the slider 20 to move. The slider 20 moves under the restriction of the guide groove 4. The slider 20 drives the slider 19 to move. The slider 19 moves under the restriction of the slide groove 15. At the same time, the slider 19 drives the spring column 8 to slide in the slide groove 26. After sliding to the appropriate position, due to the action of the spring column 8 itself, the spring column 8 slides into the positioning hole 7, fixing the slider 19 in the slide groove 15. Therefore, the lower fork 11 is fixed, thereby achieving the function of adjusting the pitch of the lower tooth. It is compatible with upper teeth of different specifications, improves versatility, reduces the cost of parts, and improves practicality.

[0043] When encountering rough logs, first pull out the pin 204 to release the fixation on the rotating shaft 205. Then rotate the turntable 207 ninety degrees. The turntable 207 drives the rotating shaft 205 to rotate ninety degrees. The circular hole 202 restricts the range of movement of the rotating shaft 205. The rotating shaft 205 drives the upper fork body 208 to rotate ninety degrees. Then, insert the pin 204 into both the second positioning slot 206 and the first positioning slot 203 to fix the rotating shaft 205. The fixing plate 201 provides a fixed position for the first positioning slot 203 and the circular hole 202. At this time, the tooth block 209 is facing the rough log. When encountering finely processed timber, repeat the same operation to align the other side of the upper fork body 208 with the wood, thereby achieving the function of flipping the upper tooth. One tooth has multiple uses, adapting to multiple operation scenarios, extending the service life of the parts, improving operation efficiency, and enhancing practicality.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A staggered toothed timber clamping structure for a loader, comprising a fork frame (1), characterized in that: The bottom of the fork frame (1) is fixedly connected to a base plate (3). The top of the outer wall of the base plate (3) is provided with a guide groove (4). The bottom of the inner wall of the base plate (3) is provided with a sliding groove (5). The front side of the inner wall of the sliding groove (5) is provided with a sliding groove (6). The front side of the outer wall of the base plate (3) is provided with multiple positioning holes (7). The inner wall of the positioning hole (7) is slidably connected with a spring column (8). The rear end of the spring column (8) is fixedly connected with a slider (9). The top of the slider (9) is fixedly connected with a slider (10). The top of the slider (10) is fixedly connected with a lower fork (11). The bottom of the inner wall of the fork frame (1) is fixedly connected with a rotating mechanism (2). The rotating mechanism (2) is used to flip the upper tooth.

2. The staggered toothed timber clamping structure for a loader according to claim 1, characterized in that: The rotating mechanism (2) includes a fixed plate (201), the bottom of which is fixedly connected to the bottom of the inner wall of the fork frame (1). The inner wall of the fixed plate (201) is provided with a plurality of circular holes (202). The inner wall of the circular holes (202) is provided with a positioning groove (203). The inner wall of the circular holes (202) is rotatably connected to a rotating shaft (205). The rear end of the rotating shaft (205) is fixedly connected to a turntable (207). The inner wall of the rotating shaft (205) is provided with a positioning groove (206). The front end of the rotating shaft (205) is fixedly connected to an upper fork (208). The top of the upper fork (208) is fixedly connected to a plurality of toothed blocks (209). The inner wall of the positioning groove (206) is slidably connected to a pin (204).

3. The staggered toothed timber clamping structure for a loader according to claim 1, characterized in that: Side plates (13) are fixedly connected to both the left and right sides of the fork frame (1), and a warning sticker (21) is fixedly connected to the left side of the fork frame (1) near the edge.

4. The staggered toothed timber clamping structure for a loader according to claim 1, characterized in that: A baffle (14) is fixedly connected to the top of the fork frame (1), and a support plate (17) is fixedly connected to the bottom rear side of the baffle (14).

5. A staggered toothed timber clamping structure for a loader according to claim 1, characterized in that: The rear side of the fork frame (1) is fixedly connected to a plurality of connecting plates (19), and the inner wall of the connecting plates (19) is provided with a plurality of threaded holes (20).

6. A staggered toothed timber clamping structure for a loader according to claim 1, characterized in that: A pressure gauge (12) is fixedly connected to the right side of the fork frame (1) near the edge, and a reinforcing rib (18) is fixedly connected to the top rear side of the fork frame (1).

7. A staggered toothed timber clamping structure for a loader according to claim 1, characterized in that: A collection groove (16) is provided on the bottom left side of the inner wall of the fork frame (1), and a guide hole (15) is provided on the bottom right side of the inner wall of the fork frame (1).

8. A staggered toothed timber clamping structure for a loader according to claim 1, characterized in that: The inner wall of the first slide groove (5) is slidably connected to the outer wall of the first slider (9), and the outer wall of the second slider (10) is slidably connected to the inner wall of the guide groove (4).