Holding fork and loading machine

Abstract

The utility model belongs to the technical field of loaders, and discloses a holding fork and a loader. The holding fork comprises a holding fork body, an upper fork body and lower fork teeth, the upper fork body comprises a first connecting part, a second connecting part and an upper fork tooth assembly, the first connecting part is rotationally arranged on the holding fork body, the second connecting part is connected to the first connecting part, the upper fork tooth assembly is rotationally arranged on the second connecting part, and the upper fork tooth assembly comprises upper fork teeth; the lower prongs are arranged on the holding fork body in a position-adjustable mode, and the lower prongs and the upper prongs can abut against each other or be staggered. The angle of the first connecting part of the embracing fork relative to the embracing fork body is adjustable, the angle of the upper fork tooth assembly relative to the first connecting part is adjustable, then the embracing range of the upper fork tooth and the lower fork tooth is enlarged, flexible operation can be achieved, the position of the lower fork tooth on the embracing fork body is adjustable, and the lower fork tooth and the upper fork tooth can abut against each other or be staggered. The use range of the holding fork is further widened, and the universality of the holding fork is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loaders, in particular to a fork and a loader. Background Art

[0002] The clamping fork consists of an upper fork tine and a lower fork body. The upper fork tine is connected to the lower fork body through a pin shaft, and the upper fork tine is driven by a cylinder. The cylinder drives the upper fork tine to rotate relative to the pin shaft, thereby causing the upper fork tine and the lower fork tine of the lower fork body to clamp the material.

[0003] There are two types of forks. One is that the middle surface of the upper fork tine coincides with the middle surface of the lower fork tine on the same side. When the upper fork tine rotates downward, the front end of the upper fork tine will collide with the front end of the lower fork tine, forming a mutually opposing posture. This type of fork is called a top-to-top fork. The other is that the middle surface of the upper fork tine and the middle surface of the lower fork tine on the same side do not coincide. There is a certain distance between the two middle surfaces. When the upper fork tine rotates downward, it will not collide with the front end of the lower fork tine, but will be offset from the lower fork tine and continue to move downward until the material is clamped. This type of fork is called a staggered tooth fork.

[0004] In order to save costs and increase the versatility of the holding fork in the prior art, a dual-purpose holding fork with two working states, namely, aligned teeth and staggered teeth, has emerged. Usually, an offset structure is provided on the upper fork tine to change the position of the upper fork tine so that the upper fork tine and the lower fork tine are in an aligned or staggered state. However, during adjustment, the pin connecting the upper fork tine and the oil cylinder driving the upper fork tine need to be changed as well, which results in low adjustment efficiency and affects the switching efficiency of the holding fork. Moreover, the upper fork tine and the lower fork tine in the prior art usually have limited opening and holding diameter, which cannot realize the free movement of the fork tip of the upper fork tine, and thus cannot realize the flexible operation of the fork tip of the upper fork tine, making it difficult to clamp objects of different sizes and having low versatility.

[0005] Therefore, a forklift and a loader are needed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a fork clamp and a loader, which can be adjusted between two working states: aligned teeth and staggered teeth, and can also adjust the fork tip angle of the upper fork teeth, thereby realizing flexible operation of the upper fork teeth and ensuring the clamping reliability of the object.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] The holding fork comprises:

[0009] The body of the fork;

[0010] The upper fork body, the upper fork body includes a first connecting portion, a second connecting portion and an upper fork tooth assembly, the first connecting portion is rotatably arranged on the fork body, the second connecting portion is connected to the first connecting portion, the upper fork tooth assembly is rotatably arranged on the second connecting portion, and the upper fork tooth assembly includes upper fork teeth;

[0011] The lower fork teeth are adjustably arranged on the fork body, and the lower fork teeth can be opposed to or misaligned with the upper fork teeth.

[0012] As an alternative technical solution, the first connecting portion includes a first support member and two first arm sections, the two first arm sections are arranged at intervals, the first support member is connected between the two first arm sections, and the two first arm sections are both rotatably installed on the fork body.

[0013] As an alternative technical solution, the fork further includes a first driving member, the first driving member is arranged on the fork body and is in transmission connection with the first arm section, and the first driving member is used for driving the two first arm sections to rotate.

[0014] As an alternative technical solution, the second connecting portion includes a support shaft and two clamping plates, clamping grooves are arranged at both ends of the support shaft, the two clamping plates are respectively installed on the outer end faces of the two first arm sections and are respectively clamped with the two clamping grooves.

[0015] As an alternative technical solution, the upper fork tooth assembly further includes a rotating sleeve, the upper fork teeth are fixedly arranged on the rotating sleeve, and the rotating sleeve is rotatably arranged on the support shaft.

[0016] As an alternative technical solution, the fork further includes a second driving member, the second driving member is arranged on the fork body, a hinge seat is fixedly arranged on the rotating sleeve, and the hinge seat is in transmission connection with the second driving member.

[0017] As an alternative technical solution, there are at least two upper fork teeth, and at least two upper fork teeth are connected by a support rod.

[0018] As an alternative technical solution, the fork body includes a support frame, a slide rail is arranged on the support frame, a sliding groove is arranged on the lower fork teeth, the sliding groove is arranged in cooperation with the slide rail, and the lower fork teeth are limited on the support frame by a fixing member.

[0019] As an alternative technical solution, a plurality of clamping grooves are arranged on the slide rail, the plurality of clamping grooves are arranged at intervals, threaded holes are arranged on the lower fork teeth, the fixing member is in threaded connection with the threaded holes, and the fixing member can be clamped in any one of the clamping grooves.

[0020] The present utility model also adopts the following technical solutions:

[0021] A loader, the loader includes a vehicle body and the fork as described above, and the fork is connected to the vehicle body through a connecting arm.

[0022] Advantages of the present utility model:

[0023] The present utility model discloses a fork and a loader. The fork includes a fork body, an upper fork body and lower fork teeth. The upper fork body includes a first connecting portion, a second connecting portion and an upper fork tooth assembly. The first connecting portion is rotatably arranged on the fork body, the second connecting portion is connected to the first connecting portion, and the upper fork tooth assembly is rotatably arranged on the second connecting portion. The upper fork tooth assembly includes upper fork teeth; the lower fork teeth are arranged on the fork body in a position-adjustable manner, and the lower fork teeth can be opposed to or misaligned with the upper fork teeth. The angle of the first connecting portion of this fork is adjustable relative to the fork body, and the angle of the upper fork tooth assembly is adjustable relative to the first connecting portion. Furthermore, the fork range of the upper fork teeth and the lower fork teeth becomes larger, enabling flexible operation. Moreover, the position of the lower fork teeth on the fork body is adjustable and can be opposed to or misaligned with the upper fork teeth, further increasing the usage range of this fork and enhancing the versatility of the fork.

[0024] The present utility model also discloses a loader. The loader includes a vehicle body and the above-mentioned fork. The fork and the vehicle body are connected through a connecting arm, and the vehicle body controls the telescoping of the fork through the connecting arm. This loader can not only perform opposed forking but also complete misaligned toothing, and the adjustable angle of the upper fork teeth becomes larger under the action of the first connecting portion and the second connecting portion, further increasing the versatility. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the fork in a misaligned state according to an embodiment of the present utility model;

[0026] Figure 2 is a schematic structural diagram of the fork in a misaligned-tooth state from another perspective according to an embodiment of the present utility model;

[0027] Figure 3 is a schematic structural diagram of the first connecting portion according to an embodiment of the present utility model;

[0028] Figure 4 is a schematic structural diagram of the upper fork tooth assembly according to an embodiment of the present utility model;

[0029] Figure 5 is a schematic structural diagram of the support shaft according to an embodiment of the present utility model;

[0030] Figure 6 is Figure 5 a partial enlarged view of A in

[0031] Figure 7It is a schematic structural view of the clamping plate according to an embodiment of the present utility model;

[0032] Figure 8 It is a schematic structural view of the fork body according to an embodiment of the present utility model;

[0033] Figure 9 It is a schematic structural view of the lower fork teeth according to an embodiment of the present utility model;

[0034] Figure 10 It is a schematic structural view of the fork in the opposed state according to an embodiment of the present utility model.

[0035] In the figure:

[0036] 10. Fork body; 11. Support frame; 111. Slide rail; 112. Clamping groove;

[0037] 20. Upper fork body; 21. First connecting part; 211. First support member; 212. First arm; 22. Second connecting part; 221. Support shaft; 2211. Card slot; 222. Clamping plate; 2221. Through hole; 23. Upper fork tooth assembly; 231. Upper fork tooth; 232. Rotating sleeve; 2321. Hinge seat; 233. Support rod;

[0038] 30. Lower fork teeth; 31. Slide groove; 32. Fixing member;

[0039] 40. First driving member;

[0040] 50. Second driving member. Detailed implementation manners

[0041] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only parts related to the present utility model are shown in the drawings, rather than all structures.

[0042] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0043] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0044] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0045] As Figures 1 to 10 shown, a fork is disclosed in this embodiment. The fork includes a fork body 10, an upper fork body 20 and lower fork teeth 30. The upper fork body 20 includes a first connecting portion 21, a second connecting portion 22 and an upper fork tooth assembly 23. The first connecting portion 21 is rotatably arranged on the fork body 10. The second connecting portion 22 is connected to the first connecting portion 21. The upper fork tooth assembly 23 is rotatably arranged on the second connecting portion 22. The upper fork tooth assembly 23 includes upper fork teeth 231. The lower fork teeth 30 are arranged on the fork body 10 with adjustable position, and the lower fork teeth 30 can oppose or be misaligned with the upper fork teeth 231. Specifically, in this embodiment, the first connecting portion 21 of this fork is rotatably arranged on the fork body 10, so that the angle of the first connecting portion 21 relative to the fork body 10 is adjustable. The upper fork tooth assembly 23 is rotatably arranged on the second connecting portion 22, so that the angle of the upper fork tooth assembly 23 relative to the first connecting portion 21 is adjustable. Furthermore, the holding range of the upper fork teeth 231 of the upper fork tooth assembly 23 and the lower fork teeth 30 becomes larger, enabling flexible operation. And the lower fork teeth 30 are adjustable in position on the fork body 10 and can oppose or be misaligned with the upper fork teeth 231, further increasing the usage range of this fork and enhancing the versatility of the fork.

[0046] Furthermore, as Figure 3As shown in the figure, the first connecting portion 21 includes a first support member 211 and two first arm sections 212. The two first arm sections 212 are spaced apart. The first support member 211 is connected between the two first arm sections 212. Both of the two first arm sections 212 are rotatably mounted on the forklift fork body 10. Specifically, in this embodiment, the first support member 211 is connected between the two first arm sections 212, which can enable the two first arm sections 212 to move synchronously, thereby ensuring the stability of clamping. Moreover, the first support member 211 can increase the overall mechanical strength and avoid clamping failure caused by structural deformation and the like.

[0047] Furthermore, the forklift fork further includes a first driving member 40. The first driving member 40 is disposed on the forklift fork body 10 and is in transmission connection with the first arm section 212. The first driving member 40 is used to drive the two first arm sections 212 to rotate. Specifically, in this embodiment, the first driving member 40 is a first oil cylinder. There are two first oil cylinders, and the two first oil cylinders are arranged in one-to-one correspondence with the two first arm sections 212. The cylinder body of the first oil cylinder is disposed on the forklift fork body 10, and the telescopic rod of the first oil cylinder is hinged to the first arm section 212. The first oil cylinder expands and contracts to drive the first arm section 212 to rotate.

[0048] Furthermore, as Figures 5 to 7 shown, the second connecting portion 22 includes a support shaft 221 and two clamping plates 222. The two ends of the support shaft 221 are provided with clamping grooves 2211. The two clamping plates 222 are respectively mounted on the outer end faces of the two first arm sections 212, and the two clamping plates 222 are respectively clamped with the two clamping grooves 2211. Specifically, in this embodiment, threaded holes are formed in the first arm section 212, through holes 2221 are formed in the clamping plate 222, and bolts pass through the through holes 2221 and are threadedly connected with the threaded holes, thereby connecting the clamping plate 222 to the outer end face of the first arm section 212. Clamping grooves 2211 are provided on both sides of the support shaft 221, and the two clamping grooves 2211 are respectively clamped with the two clamping plates 222 mounted on the two first arm sections 212, so that the position of the support shaft 221 relative to the two first arm sections 212 is fixed, ensuring the stability of use.

[0049] Furthermore, please refer to Figure 4 , the upper fork tooth assembly 23 further includes a rotating sleeve 232. The upper fork tooth 231 is fixedly arranged on the rotating sleeve 232, and the rotating sleeve 232 is rotatably arranged on the support shaft 221. Specifically, in this embodiment, the rotating sleeve 232 of the upper fork tooth 231 is rotatably arranged on the outer periphery of the support shaft 221. The upper fork tooth 231 is fixedly arranged on the rotating sleeve 232. The rotation of the rotating sleeve 232 can drive the upper fork tooth 231 to rotate, so that the angle of the upper fork tooth 231 relative to the support shaft 221 is adjustable. Furthermore, the angle between the upper fork tooth 231 and the first connecting portion 21 is adjustable, thereby ensuring the clamping stability of the object and also increasing the versatility of the upper fork body 20.

[0050] Furthermore, the clamping fork further includes a second driving member 50, which is disposed on the clamping fork body 10. A hinge seat 2321 is fixedly disposed on the rotating sleeve 232, and the hinge seat 2321 is in transmission connection with the second driving member 50. Specifically, in this embodiment, the second driving member 50 is a second oil cylinder, the cylinder body of the second oil cylinder being disposed on the clamping fork body 10, and the telescopic rod of the second oil cylinder being hingedly connected to the hinge seat 2321. When the telescopic rod of the second oil cylinder is extended or retracted, it can drive the rotating sleeve 232 to rotate about the support shaft 221, thereby adjusting the angle of the upper fork tines 231 to ensure the stability of the clamping of the object.

[0051] For further information, please refer to Figure 4 At least two upper fork tines 231 are provided, and at least two upper fork tines 231 are connected by a support rod 233. Specifically, in this embodiment, there are four upper fork tines 231, and the four upper fork tines 231 are arranged at intervals on the rotating sleeve 232. Support holes are opened on the four upper fork tines 231. The support rod 233 is passed through all the support holes and fixedly connected to all the upper fork tines 231, thereby preventing the upper fork tines 231 from moving, thereby ensuring the stability of the fork installation.

[0052] In this embodiment, the upper fork tine 231, the rotating sleeve 232, the hinge seat 2321 and the support rod 233 are connected by welding, which can ensure that the upper fork tine assembly 23 has good integrity and ensures safety and stability during use.

[0053] Furthermore, if Figure 8 and Figure 9 As shown, the fork body 10 includes a support frame 11, the support frame 11 is provided with a slide rail 111, the lower fork tine 30 is provided with a slide groove 31, the slide groove 31 is matched with the slide rail 111, and the lower fork tine 30 is limited to the support frame 11 by a fixing member 32. Specifically, in this embodiment, the upper and lower parts of the support frame 11 are both provided with slide rails 111, and the upper part of the lower fork tine 30 is provided with a flange for engaging with the upper slide rail 111, and the middle part of the lower fork tine 30 is provided with a hook structure, which can be engaged with the lower edge of the slide rail 111 at the lower part of the support frame 11, thereby making the lower fork tine 30 stably connected to the support frame 11, avoiding the lower fork tine 30 from shaking, ensuring the stability when forking materials, and the slide groove 31 of the lower fork tine 30 and the slide rail 111 of the support frame 11 slidingly cooperate, and are limited to the support frame 11 by the fixing member 32, and the position of the lower fork tine 30 on the support frame 11 can be adjusted by adjusting the fixing member 32, thereby making the lower fork tine 30 and the upper fork tine 231 opposite or misaligned, increasing the versatility of the fork.

[0054] Furthermore, the slide rail 111 is provided with a plurality of engaging grooves 112, which are arranged at intervals. The lower fork tine 30 is provided with a threaded hole, and the fixing member 32 is threadedly connected to the threaded hole, and the fixing member 32 can be engaged with any one of the engaging grooves 112. Specifically, in this embodiment, by tightening the fixing member 32 so that the fixing member 32 is engaged with one of the engaging grooves 112, the lower fork tine 30 can be fixed to the support frame 11, and by loosening the fixing member 32 so that the fixing member 32 is disengaged from the engaging groove 112, the lower fork tine 30 is moved so that the lower fork tine 30 slides along the slide rail 111, thereby adjusting the position of the lower fork tine 30.

[0055] In this embodiment, when the lower fork tine 30 is against the upper fork tine 231, the number of the upper fork tine 231 is the same as the number of the lower fork tine 30. When the lower fork tine 30 is misaligned with the upper fork tine 231, preferably, the number of the lower fork tine 30 is one more than the number of the upper fork tine 231, so that the fork holding range of the lower fork tine 30 is larger than the fork holding range of the upper fork tine 231, thereby ensuring stability during the fork holding process.

[0056] This embodiment also discloses a loader, comprising a vehicle body and any of the forks described above, the fork and vehicle body being connected by a connecting arm. Specifically, in this embodiment, the vehicle body is connected to the fork via a connecting arm. During use, the connecting arm controls the extension and retraction of the fork to clamp materials. This loader is capable of both top-to-top and staggered fork clamping, and the upper tines 231 are adjustable to a larger angle under the action of the first connecting portion 21 and the second connecting portion 22, further increasing versatility.

[0057] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Fork, characterized in that, The fork clamp includes: A fork clamp body (10); An upper fork body (20), the upper fork body (20) includes a first connecting portion (21), a second connecting portion (22) and an upper fork tooth assembly (23), the first connecting portion (21) is rotatably arranged on the fork clamp body (10), the second connecting portion (22) is connected to the first connecting portion (21), the upper fork tooth assembly (23) is rotatably arranged on the second connecting portion (22), and the upper fork tooth assembly (23) includes upper fork teeth (231); Lower fork teeth (30), the lower fork teeth (30) are arranged on the fork clamp body (10) with adjustable positions, and the lower fork teeth (30) can abut against or be misaligned with the upper fork teeth (231).

2. The fork according to claim 1, characterized in that, The first connecting portion (21) includes a first support member (211) and two first arm sections (212), the two first arm sections (212) are arranged at intervals, the first support member (211) is connected between the two first arm sections (212), and the two first arm sections (212) are both rotatably installed on the fork clamp body (10).

3. The fork according to claim 2, characterized in that, The fork clamp further includes a first driving member (40), the first driving member (40) is arranged on the fork clamp body (10) and is in transmission connection with the first arm section (212), and the first driving member (40) is used to drive the two first arm sections (212) to rotate.

4. The fork according to claim 2, wherein, The second connecting portion (22) includes a support shaft (221) and two clamping plates (222), clamping grooves (2211) are arranged at both ends of the support shaft (221), the two clamping plates (222) are respectively installed on the outer end faces of the two first arm sections (212) and are respectively clamped with the two clamping grooves (2211).

5. The fork according to claim 4, characterized in that, The upper fork tooth assembly (23) further includes a rotating sleeve (232), the upper fork teeth (231) are fixedly arranged on the rotating sleeve (232), and the rotating sleeve (232) is rotatably arranged on the support shaft (221).

6. The fork according to claim 5, characterized in that, The fork clamp further includes a second driving member (50), the second driving member (50) is arranged on the fork clamp body (10), a hinge seat (2321) is fixedly arranged on the rotating sleeve (232), and the hinge seat (2321) is in transmission connection with the second driving member (50).

7. The fork according to any one of claims 1-6, characterized in that, At least two upper fork teeth (231) are provided, and at least two upper fork teeth (231) are connected by a support rod (233).

8. The fork according to any one of claims 1-6, characterized in that, The fork clamp body (10) includes a support frame (11), a slide rail (111) is arranged on the support frame (11), a chute (31) is arranged on the lower fork teeth (30), the chute (31) is arranged in cooperation with the slide rail (111), and the lower fork teeth (30) are limited to the support frame (11) by a fixing member (32).

9. The fork according to claim 8, characterized in that, A plurality of clamping grooves (112) are arranged on the slide rail (111), the plurality of clamping grooves (112) are arranged at intervals, a threaded hole is arranged on the lower fork teeth (30), the fixing member (32) is in threaded connection with the threaded hole, and the fixing member (32) can be clamped in any one of the clamping grooves (112).

10. Loader, the loader comprising a vehicle body, characterized in that, The wheel loader further includes a fork as described in any one of claims 1-9, and the fork is connected to the vehicle body through a connecting arm.

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