Chain type side shift and pitch mechanism

Abstract

The utility model discloses a chain formula side shift distance adjusting mechanism, especially relates to distance adjusting mechanism technical field, and it is including: frame body, the inside sliding joint of frame body has left shift fork and right shift fork, frame body includes: upper crossbeam and lower crossbeam, the bottom of upper crossbeam and the top of lower crossbeam are established upper guide groove and lower guide groove respectively, the top of left shift fork and right shift fork all with the inner wall sliding joint of upper guide groove, the bottom of left shift fork and right shift fork all with the inner wall sliding joint of lower guide groove, be provided with distance adjusting mechanism between left shift fork, right shift fork and frame body, be provided with side shift mechanism on frame body. The utility model discloses utilize upper guide groove and lower guide groove to left shift fork and right shift fork have very good direction effect, and the space is smaller, and the field of vision has obvious improvement, compared with the existing product field of vision has very big improvement, and the processing difficulty and production cost of upper guide groove and lower guide groove are all lower, can effectively reduce the cost and realize batch production, therefore improve practicality.

Description

Technical Field

[0001] This utility model relates to the field of distance adjustment mechanism technology, and more specifically, to a chain-type lateral displacement distance adjustment mechanism. Background Technology

[0002] In modern forklift technology, to maximize the flexibility and efficiency of forklift operations in confined spaces and achieve precise positioning in high-density warehousing environments, attachments with lateral movement (lateral movement) and fork spacing adjustment functions are often used. For example, a base frame with lateral movement rails and lateral movement cylinders mounted on the forklift mast is combined with a sliding frame or adjusting frame mounted on the base frame. Lateral movement is achieved through the lateral movement rails and lateral movement cylinders, and the fork spacing is adjusted through the adjusting rails and adjusting cylinders on the sliding frame or adjusting frame.

[0003] However, in actual use, the existing product forklift fork carriage uses two optical shafts to fix and support the forks. This structure occupies a lot of space, resulting in poor visibility and inconvenience for maintenance. Therefore, a chain-type side-shift adjustment mechanism is proposed as a further improvement. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a chain-type lateral displacement adjustment mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a chain-type lateral displacement adjustment mechanism, comprising: a frame;

[0006] The frame is internally slidably connected by a left fork and a right fork;

[0007] The frame includes an upper crossbeam and a lower crossbeam; the bottom of the upper crossbeam and the top of the lower crossbeam are respectively provided with a smooth and flat upper guide groove and a lower guide groove; the tops of the left and right shift forks are slidably connected to the inner wall of the upper guide groove, and the bottoms of the left and right shift forks are slidably connected to the inner wall of the lower guide groove.

[0008] An adjustment mechanism is provided between the left and right shift forks and the frame to adjust the distance between the left and right shift forks; a lateral shift mechanism is provided on the frame.

[0009] Furthermore, the adjusting mechanism includes:

[0010] A distance-adjusting drive device fixedly connected to the frame, the output end of which is fixedly connected to the right shift fork, the distance-adjusting drive device driving the right shift fork to move linearly along the extension direction of the upper guide groove or the lower guide groove; and...

[0011] A sprocket base is fixedly installed on the inside of the frame body. The two sprocket bases are located on the two inner sides of the frame body respectively. The sprocket bases are rotatably connected to sprockets. A closed-loop transmission chain is wrapped around the two sprockets. The transmission chain meshes with the sprocket.

[0012] The left and right shift forks are fixedly mounted on transmission chains with opposite directions of movement.

[0013] Furthermore, the extension directions of the upper guide groove, the lower guide groove, and the transmission direction of the transmission chain are all parallel to each other.

[0014] Furthermore, the lateral movement mechanism includes: a mounting plate assembly fixedly installed on the forklift fork carriage;

[0015] A lateral shift drive device is fixedly installed on the top of the frame, which drives the frame to move linearly along the extension direction of the upper guide groove or the lower guide groove on the hanging plate assembly.

[0016] The output end of the lateral movement drive device is fixedly connected to the top of the mounting plate assembly.

[0017] Furthermore, a first wear-resistant slider is fixedly installed on the top of both the left and right shift forks, and a second wear-resistant slider is fixedly installed on the bottom of both the left and right shift forks. The tops of both the left and right shift forks are slidably connected to the inner wall of the upper guide groove through the first wear-resistant slider, and the bottoms of both the left and right shift forks are slidably connected to the inner wall of the lower guide groove through the second wear-resistant slider.

[0018] Furthermore, the inner walls of both the upper and lower guide grooves are coated with lubricating oil.

[0019] Furthermore, a lower hook is fixedly installed at the bottom of the frame.

[0020] The technical effects and advantages of this utility model are as follows:

[0021] 1. Compared with existing technologies, by setting upper and lower guide grooves, the two optical axes used to fix and support the forks are changed. The left and right shift forks installed in the upper and lower guide grooves have a good guiding effect, occupy less space, and significantly improve the field of vision. It avoids the space occupied by the optical axes, and greatly improves the field of vision in the vertical direction compared with existing products. That is, it increases the field of vision space and facilitates maintenance. Moreover, the upper and lower guide grooves are easier to process and have lower production costs, that is, the difficulty of the production process is greatly reduced, which can effectively reduce costs and enable mass production, thus improving practicality.

[0022] 2. Compared with existing technologies, the side-shifting mechanism achieves the side-shifting function by combining the mounting plate assembly, frame, and side-shifting drive device; the adjustable fork opening and closing action is achieved by combining the adjustable fork drive device, left fork, right fork, sprocket, sprocket base, and drive chain, thus achieving the adjustable fork function; the combination of sprocket and drive chain achieves high synchronization of the adjustable fork; hook-type forks can be directly installed on the left and right forks, and the forks can be replaced at any time, increasing the adaptability of the forks. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the upper guide groove and the lower guide groove of this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the lower hook of this utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the first wear-resistant slider of this utility model.

[0027] The attached figures are labeled as follows:

[0028] 100. Frame; 110. Upper crossbeam; 111. Upper guide groove; 120. Lower crossbeam; 121. Lower guide groove; 200. Left shift fork; 300. Right shift fork; 400. Adjustment mechanism; 410. Adjustment drive device; 420. Sprocket base; 430. Sprocket; 440. Drive chain; 500. Side shift mechanism; 510. Mounting plate assembly; 520. Side shift drive device; 600. First wear-resistant slider; 700. Second wear-resistant slider; 800. Lower hook. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] As attached Figure 1 and attached Figure 2 A chain-type lateral displacement adjustment mechanism is shown, comprising: a frame 100;

[0031] The frame 100 has a sliding connection between a left fork 200 and a right fork 300; hook-type forks can be directly installed on the left fork 200 and the right fork 300, thus increasing the fork adaptability of the structure by allowing for fork replacement.

[0032] The frame 100 includes an upper crossbeam 110 and a lower crossbeam 120. The bottom of the upper crossbeam 110 and the top of the lower crossbeam 120 are respectively provided with smooth and flat upper guide grooves 111 and lower guide grooves 121. The tops of the left fork 200 and the right fork 300 are slidably connected to the inner wall of the upper guide groove 111, and the bottoms of the left fork 200 and the right fork 300 are slidably connected to the inner wall of the lower guide groove 121. Existing products use two optical shafts to fix and support the forks, which occupies a large space, resulting in poor visibility. Furthermore, because it is a through-shaft installation, it is necessary to ensure that the shafts passing through are coaxial, leading to high processing difficulty and production costs. Therefore, this invention uses upper guide grooves 111 and lower guide grooves 121 for limiting, avoiding the space occupied by the optical shafts and increasing the field of vision for easier maintenance. Moreover, the processing difficulty and production cost of upper guide grooves 111 and lower guide grooves 121 are relatively low, thus improving practicality.

[0033] A distance adjustment mechanism 400 is provided between the left shift fork 200, the right shift fork 300 and the frame 100 to adjust the distance between the left shift fork 200 and the right shift fork 300; a lateral shift mechanism 500 is provided on the frame 100 to adjust the position of the frame 100, that is, the position of the left shift fork 200 and the right shift fork 300.

[0034] In a preferred embodiment, as shown in the appendix Figure 1 and attached Figure 2 As shown, the adjusting mechanism 400 includes:

[0035] An adjustable drive device 410 is fixedly connected to the frame 100. The output end of the adjustable drive device 410 is fixedly connected to the right shift fork 300. The adjustable drive device 410 drives the right shift fork 300 to move linearly along the extension direction of the upper guide groove 111 or the lower guide groove 121. For example, the adjustable drive device 410 is a hydraulic cylinder. The adjustable drive device 410 can push the right shift fork 300 to move laterally, that is, move along the extension direction of the upper guide groove 111 or the lower guide groove 121.

[0036] Additionally, a sprocket base 420 is fixedly installed inside the frame 100. Two sprocket bases 420 are located on the two inner sides of the frame 100, and sprocket bases 420 are rotatably connected to sprockets 430. A closed-loop transmission chain 440 is wrapped around the two sprockets 430, and the transmission chain 440 meshes with the sprockets 430. This allows the left shift fork 200 and the right shift fork 300 to be linked together by the transmission chain 440 wrapped around the sprockets 430. Thus, when the right shift fork 300 moves, the left shift fork 200 can also move simultaneously. Because the transmission chain 440 changes direction through the sprockets 430, the left shift fork 200 and the right shift fork 300 move in opposite directions, thereby achieving simultaneous closing and opening of the forks. Since the transmission chain 440 is made of metal chain, its non-extendable nature ensures that the displacement of the left shift fork 200 and the right shift fork 300 is exactly the same.

[0037] The specific working principle is as follows: The left shift fork 200 and the right shift fork 300 are fixedly installed on the transmission chain 440 with opposite directions of movement. When the pitch adjustment drive device 410 pushes the right shift fork 300 to move away from the pitch adjustment drive device 410, the right shift fork 300 drives the left shift fork 200 to move in the opposite direction through the transmission chain 440. That is, the left shift fork 200 and the right shift fork 300 move in opposite directions.

[0038] Similarly, when the pitch adjustment drive device 410 pulls the right shift fork 300 to move toward the direction closer to the pitch adjustment drive device 410, the right shift fork 300 drives the left shift fork 200 to move in the opposite direction through the transmission chain 440, that is, the left shift fork 200 and the right shift fork 300 move toward each other.

[0039] Therefore, this structure has the function of adjusting the distance between the left shift fork 200 and the right shift fork 300.

[0040] In a preferred embodiment, as shown in the appendix Figure 1 and attached Figure 2 As shown, the extension directions of the upper guide groove 111, the lower guide groove 121, and the transmission direction of the transmission chain 440 are all parallel to each other, so that when the left shift fork 200 and the right shift fork 300 move along the extension direction of the upper guide groove 111 or the lower guide groove 121, the resistance is small and the structure is reasonable, avoiding jamming during their movement.

[0041] In a preferred embodiment, as shown in the appendix Figure 1 and attached Figure 2 As shown, the lateral movement mechanism 500 includes: a mounting plate assembly 510 fixedly installed on the forklift fork carriage;

[0042] A side-shift drive device 520 is fixedly installed on the top of the frame 100. The side-shift drive device 520 drives the frame 100 to move linearly along the extension direction of the upper guide groove 111 or the lower guide groove 121 on the mounting plate assembly 510. For example, the side-shift drive device 520 is a hydraulic cylinder. The side-shift drive device 520 can push the frame 100 to move laterally on the mounting plate assembly 510. When the mounting plate assembly 510 is installed, the positioning block on the mounting plate assembly 510 restricts the mounting plate assembly 510 to the forklift fork carriage.

[0043] The output end of the lateral drive device 520 is fixedly connected to the top of the mounting plate assembly 510; wherein, a wear-resistant slider is added between the frame 100 and the mounting plate assembly 510 to reduce friction.

[0044] In a preferred embodiment, as shown in the appendix Figure 1 Appendix Figure 2 and attached Figure 4 As shown, a first wear-resistant slider 600 is fixedly installed on the top of both the left shift fork 200 and the right shift fork 300, and a second wear-resistant slider 700 is fixedly installed on the bottom of both the left shift fork 200 and the right shift fork 300. The tops of both the left shift fork 200 and the right shift fork 300 are slidably connected to the inner wall of the upper guide groove 111 through the first wear-resistant slider 600, and the bottoms of both the left shift fork 200 and the right shift fork 300 are slidably connected to the inner wall of the lower guide groove 121 through the second wear-resistant slider 700. This allows the upper guide groove 111 and the lower guide groove 121 to guide the left shift fork 200 and the right shift fork 300 more smoothly by using the first wear-resistant slider 600 and the second wear-resistant slider 700. The left shift fork 200 and the right shift fork 300 are provided with positioning grooves for fixing the first wear-resistant slider 600 and the second wear-resistant slider 700.

[0045] In a preferred embodiment, as shown in the appendix Figure 1 Appendix Figure 2 and attached Figure 4 As shown, the inner walls of the upper guide groove 111 and the lower guide groove 121 are coated with lubricating oil to reduce the friction between the left shift fork 200 and the right shift fork 300 in the upper guide groove 111 and the lower guide groove 121.

[0046] In a preferred embodiment, as shown in the appendix Figure 3 As shown, a lower hook 800 is fixedly installed at the bottom of the frame 100. The lower hook 800 is bolted to the bottom of the frame 100 and is snapped onto the forklift fork carriage. A wear-resistant slider is installed on the lower hook 800 to contact the forklift crossbeam in order to reduce friction. The lower hook 800 is equipped with high-precision strip-shaped serrations. The straight toothed rack and the inclined waist hole can make the lower hook 800 adjustable in height. After the bolt is tightened, there will be no slippage. This ensures both the adaptability of the product installation and the safety.

[0047] This utility model also uses a connector hose to extend the oil port of the adjusting drive device 410 of the adjusting mechanism 400 to one side of the frame 100 to facilitate the installation of the forklift oil circuit.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chain-type lateral displacement adjustment mechanism, characterized in that: include: Frame (100); The frame (100) is internally slidably connected with a left fork (200) and a right fork (300). The frame (100) includes an upper crossbeam (110) and a lower crossbeam (120); the bottom of the upper crossbeam (110) and the top of the lower crossbeam (120) are respectively provided with a smooth and flat upper guide groove (111) and a lower guide groove (121); the tops of the left fork (200) and the right fork (300) are slidably connected to the inner wall of the upper guide groove (111), and the bottoms of the left fork (200) and the right fork (300) are slidably connected to the inner wall of the lower guide groove (121); A distance adjustment mechanism (400) for adjusting the distance between the left fork (200) and the right fork (300) is provided between the left fork (200) and the frame (100); a side-shifting mechanism (500) is provided on the frame (100).

2. The chain-type lateral adjustment mechanism according to claim 1, characterized in that: The adjusting mechanism (400) includes: A distance adjustment drive device (410) is fixedly connected to the frame (100), the output end of which is fixedly connected to the right shift fork (300). The distance adjustment drive device (410) drives the right shift fork (300) to move linearly along the extension direction of the upper guide groove (111) or the lower guide groove (121); and, A sprocket base (420) is fixedly installed on the inner side of the frame (100). The two sprocket bases (420) are located on the two inner sides of the frame (100). The sprocket bases (420) are rotatably connected to sprockets (430). A closed-loop transmission chain (440) is wrapped around the two sprockets (430). The transmission chain (440) meshes with the (430). The left shift fork (200) and the right shift fork (300) are respectively fixedly installed on the transmission chain (440) with opposite directions of movement.

3. The chain-type lateral adjustment mechanism according to claim 2, characterized in that: The extension directions of the upper guide groove (111), the lower guide groove (121), and the transmission direction of the transmission chain (440) are all parallel to each other.

4. The chain-type lateral shifting adjustment mechanism according to claim 3, characterized in that: The lateral shifting mechanism (500) includes: a mounting plate assembly (510) fixedly installed on the forklift fork carriage; A side-shifting drive device (520) is fixedly installed on the top of the frame (100), which drives the frame (100) to move linearly along the extension direction of the upper guide groove (111) or the lower guide groove (121) on the hanging plate assembly (510); The output end of the lateral drive device (520) is fixedly connected to the top of the mounting plate assembly (510).

5. The chain-type lateral shifting adjustment mechanism according to claim 1, characterized in that: The tops of the left shift fork (200) and the right shift fork (300) are each fixedly equipped with a first wear-resistant slider (600), and the bottoms of the left shift fork (200) and the right shift fork (300) are each fixedly equipped with a second wear-resistant slider (700). The tops of the left shift fork (200) and the right shift fork (300) are slidably connected to the inner wall of the upper guide groove (111) through the first wear-resistant slider (600), and the bottoms of the left shift fork (200) and the right shift fork (300) are slidably connected to the inner wall of the lower guide groove (121) through the second wear-resistant slider (700).

6. The chain-type lateral adjustment mechanism according to claim 1, characterized in that: The inner walls of the upper guide groove (111) and the lower guide groove (121) are coated with lubricating oil.

7. The chain-type lateral adjustment mechanism according to claim 1, characterized in that: A lower hook (800) is fixedly installed on the bottom of the frame (100).

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