A built-in side shifter

Abstract

The utility model discloses a built -in side shifter, specifically relates to side shifter technical field, including support frame subassembly, side shifter subassembly and right angle damping joint, support frame subassembly includes: lift base frame and side shift oil cylinder, the piston rod of side shift oil cylinder is fixedly connected with the side of side shifter subassembly, right angle damping joint fixed mounting is on the working oil port of side shift oil cylinder, the other end of right angle damping joint is connected with the corresponding interface of reversing valve through oil pipe, the inside of right angle damping joint is provided with first passageway and second passageway, the inside of right angle damping joint is provided with damping race, and the middle part of damping race is provided with the damping hole of through -going, the utility model discloses the oil flow of right angle damping joint and damping race is restricted, adjusts side shifter subassembly moving speed, absorbs impact, provides the buffer for side shift oil cylinder, and damping race and right angle damping joint are a whole, and damping race is not easy to appear deformation under high pressure, thereby avoiding the oil leakage situation that throttle piece appears and is not tightly blocked.

Description

Technical Field

[0001] This utility model relates to the field of lateral shifter technology, and more specifically, to a built-in lateral shifter. Background Technology

[0002] An integrated side shifter is a lateral movement device integrated inside the axle of a trailer or semi-trailer. Driven by a hydraulic cylinder, it enables the vehicle to make minor lateral adjustments in confined spaces or special working conditions, thereby significantly improving vehicle maneuverability and operational efficiency. It is widely used in logistics transportation, port terminals, and special vehicle applications. Existing integrated side shifters typically include a hydraulic cylinder, piston, directional valve, and a damping joint—a key component for controlling cylinder movement speed, buffering shocks, and locking the piston position when not in operation. To meet industry requirements for the minimum piston speed of the side shifter hydraulic cylinder (typically, the maximum lateral movement speed should be less than 100 mm / s), and to achieve effective buffering and stable control of piston movement (especially at low speeds), a throttling plate is often added to a key node in the hydraulic circuit (such as the end of the damping joint). The throttling plate's orifice or gap restricts the oil flow, thereby regulating speed and absorbing shocks.

[0003] However, in actual use, the piston movement in a high-pressure environment can easily cause the throttle plate to deform, thus failing to seal the hydraulic oil. Consequently, the damping joint of the built-in side shifter suffers from an imbalance in the flow control of the oil circuits on both sides due to the throttle plate, affecting product quality. Therefore, a built-in side shifter 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 built-in lateral shifter to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a built-in lateral shifter, comprising a support frame assembly, a lateral shifter assembly, and a right-angle damping joint;

[0006] The support frame assembly includes: a lifting base frame that moves on the forklift mast and a side-shifting cylinder fixedly installed on the top of the lifting base frame; the piston rod of the side-shifting cylinder is fixedly connected to the side of the side-shifting frame assembly; the right-angle damping joint is fixedly installed on the working oil port of the side-shifting cylinder; the other end of the right-angle damping joint is connected to the corresponding interface of the reversing valve through an oil pipe to form an independent and sealed hydraulic circuit;

[0007] The right-angle damping joint has a first channel and a second channel inside; the center line of the first channel is perpendicular to the center line of the second channel; a damping plug for throttling is provided inside the right-angle damping joint and located in the first or second channel, and a through damping hole is provided in the middle of the damping plug, and the first channel is connected to the second channel through the damping hole; the diameter of the first channel and the second channel are both larger than the diameter of the damping plug.

[0008] Furthermore, the diameter of the damping hole is set to 1.5-2.2 mm; the thickness of the damping plug is set to 2-5 mm.

[0009] Furthermore, the damping stop is positioned at: the end of the first channel away from the second channel, the end of the first channel close to the second channel, the end of the second channel close to the first channel, and the end of the second channel away from the first channel.

[0010] Furthermore, the side-shifting cylinder is configured as a double-ended piston rod structure; the side-shifting cylinder includes a cylinder body and two piston rods, and the two piston rods are respectively fixedly connected to both sides of the side-shifting frame assembly; the two right-angle damping joints are fixedly installed on the two working oil ports of the side-shifting cylinder; the other ends of the two right-angle damping joints are respectively connected to the corresponding interfaces of the reversing valve through oil pipes to form two independent and sealed hydraulic circuits.

[0011] Furthermore, the cylinder body has a stepped hole inside that contacts the piston rod. The diameter of the stepped hole is set to 30-35mm, and the diameter of the piston rod is at least 10mm larger than the diameter of the stepped hole.

[0012] Furthermore, a sealing guide assembly for dynamic sealing and radial support is provided between the end of the cylinder and the piston rod, and a fixing block is fixedly installed on the outer surface of the end of the cylinder, and the sealing guide assembly is fixedly connected to the fixing block.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] Compared with existing technologies, by setting up a right-angle damping joint and a damping plug, when the side-shifting frame assembly moves on the support frame assembly, the damping plug in the right-angle damping joint restricts the oil flow through the damping hole, adjusts the moving speed of the side-shifting frame assembly, absorbs impact, and provides buffer for the side-shifting cylinder. Since the damping plug and the right-angle damping joint are integrated, the damping plug is less prone to deformation under high pressure. Therefore, this structure is more reliable and stable than the throttling plate structure. It also provides better sealing of hydraulic oil, avoiding oil leakage caused by incomplete sealing of the throttling plate. Furthermore, by setting up the support frame assembly and using fixed blocks, the field of vision at both ends of the side-shifting frame assembly is wide, thus providing a clear view when the side-shifting frame assembly moves. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the external structure of the side-shifting hydraulic cylinder of this utility model.

[0017] Figure 3 This is a schematic diagram of the right-angle damping joint and the side-shifting cylinder of this utility model.

[0018] Figure 4 This is a schematic diagram of the internal structure of the cylinder body of this utility model.

[0019] Figure 5 This is a cross-sectional structural diagram of the right-angle damping joint of this utility model.

[0020] Figure 6 This is a schematic diagram of the lifting base frame and cylinder of this utility model.

[0021] Figure 7 This is a schematic diagram of the side-shifting frame assembly of this utility model.

[0022] The attached figures are labeled as follows:

[0023] 100. Support frame assembly; 110. Lifting base frame; 120. Side shift cylinder; 121. Cylinder body; 122. Piston rod; 123. Step hole; 124. Sealing guide assembly; 125. Fixing block; 200. Side shift frame assembly; 300. Right angle damping joint; 310. First channel; 320. Second channel; 330. Damping plug; 331. Damping hole. Detailed Implementation

[0024] 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.

[0025] As attached Figure 1 , 2 3, 5 and appendix Figure 7The illustrated built-in side shifter includes a support frame assembly 100, a side shift frame assembly 200, and a right-angle damping joint 300. The support frame assembly 100 includes a lifting base frame 110 that moves on a forklift mast and a side shift cylinder 120 fixedly mounted on the top of the lifting base frame 110. The piston rod of the side shift cylinder 120 is fixedly connected to the side of the side shift frame assembly 200. The right-angle damping joint 300 is fixedly mounted on the working port of the side shift cylinder 120. The other end of the right-angle damping joint 300 is connected to the corresponding interface of the reversing valve through an oil pipe to form an independent and sealed hydraulic circuit. When the side shift frame assembly 200 moves on the support frame assembly 100, the right-angle damping joint 300 limits the oil flow, adjusts the moving speed of the side shift frame assembly 200, absorbs the impact, and provides cushioning for the side shift cylinder 120.

[0026] The right-angle damping joint 300 has a first channel 310 and a second channel 320 inside; the center line of the first channel 310 is perpendicular to the center line of the second channel 320; a damping plug 330 for throttling is provided inside the right-angle damping joint 300 and located in the first channel 310 or the second channel 320, and a through damping hole 331 is provided in the middle of the damping plug 330, through which the first channel 310 communicates with the second channel 320; the diameters of both the first channel 310 and the second channel 320 are larger than the resistance. The diameter of the Nise 330; among them, the damping plug 330 and damping hole 331 inside the right-angle damping joint 300 can replace the throttling plate; since the damping plug 330 and the right-angle damping joint 300 are an integral part, the damping plug 330 is not easy to deform under high pressure, and the damping hole 331 is used to limit the oil flow, thereby achieving the purpose of regulating speed and absorbing impact. Compared with the throttling plate structure, this structure is more reliable and stable; the effect of sealing hydraulic oil is better, avoiding oil leakage caused by the throttling plate not sealing properly.

[0027] In a preferred embodiment, as shown in the appendix Figure 5 As shown, the diameter of the damping orifice 331 is set to 1.5-2.2mm; the thickness of the damping plug 330 is set to 2-5mm. The preferred diameter of the damping orifice 331 is 1.8mm; this ensures optimal flow control after it replaces the throttle plate, and also maintains higher consistency in the back pressure of the two side-shifting cylinders 120; thus guaranteeing the oil control effect of replacing the throttle plate.

[0028] In a preferred embodiment, as shown in the appendix Figure 5As shown, the damper 330 is positioned at: the end of the first channel 310 furthest from the second channel 320, the end of the first channel 310 closest to the second channel 320, the end of the second channel 320 closest to the first channel 310, and the end of the second channel 320 furthest from the first channel 310. The damper 330's position at these four locations has almost the same effect, all serving to replace the throttling effect of the throttling plate.

[0029] In a preferred embodiment, as shown in the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, the side-shifting cylinder 120 is configured with a double-headed piston rod structure; the side-shifting cylinder 120 includes a cylinder body 121 and two piston rods 122, and the two piston rods 122 are respectively fixedly connected to both sides of the side-shifting frame assembly 200; two right-angle damping joints 300 are fixedly installed on the two working oil ports of the side-shifting cylinder 120; the other ends of the two right-angle damping joints 300 are respectively connected to the corresponding interfaces of the reversing valve through oil pipes to form two independent and sealed hydraulic circuits.

[0030] In a preferred embodiment, as shown in the appendix Figure 4 and attached Figure 6 As shown, the cylinder body 121 has a stepped hole 123 inside that contacts the piston rod 122. The diameter of the stepped hole 123 is set to 30-35mm, and the diameter of the piston rod 122 is at least 10mm larger than the diameter of the stepped hole 123. Specifically, if the piston rod 122 is 45mm in diameter, the stepped hole of the side-moving cylinder 120 can be made to be 30-35mm, thus allowing for a 10mm margin. Compared with existing stepped holes, this results in a larger hole diameter, easier processing, and cleaner cleaning, thereby improving the cleanliness level.

[0031] In a preferred embodiment, as shown in the appendix Figure 2 and attached Figure 3 As shown, a sealing guide assembly 124 for dynamic sealing and radial support is provided between the end of the cylinder body 121 and the piston rod 122. A fixing block 125 is fixedly installed on the outer surface of the end of the cylinder body 121, and the sealing guide assembly 124 is fixedly connected to the fixing block 125. Since the existing traditional built-in side shifter support frame adopts an inner and outer frame structure, that is, the fixed cylinder body 121 and the sealing guide assembly 124 are connected to the lifting base frame 110 by support rods, support frames, and this structure will affect the field of vision in actual use, especially when operating at high altitudes. Therefore, the fixing block 125 is used to make the field of vision at both ends of the side shifter assembly 200 wider, so that when the side shifter assembly 200 moves, there are no extra support rods or support frames affecting the field of vision, thus making the field of vision wider.

[0032] 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.

[0033] 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 built-in lateral shifter, characterized in that: Includes a support frame assembly (100), a side shift frame assembly (200), and a right-angle damping joint (300). The support frame assembly (100) includes: a lifting base frame (110) that moves on the forklift mast and a side-shifting cylinder (120) fixedly installed on the top of the lifting base frame (110); the piston rod of the side-shifting cylinder (120) is fixedly connected to the side of the side-shifting frame assembly (200); the right-angle damping joint (300) is fixedly installed on the working oil port of the side-shifting cylinder (120); the other end of the right-angle damping joint (300) is connected to the corresponding interface of the reversing valve through an oil pipe to form an independent and sealed hydraulic circuit; The right-angle damping connector (300) has a first channel (310) and a second channel (320) inside; the center line of the first channel (310) is perpendicular to the center line of the second channel (320); a damping plug (330) for throttling is provided inside the right-angle damping connector (300) and located in the first channel (310) or the second channel (320), and a through damping hole (331) is provided in the middle of the damping plug (330), and the first channel (310) is connected to the second channel (320) through the damping hole (331); the diameters of the first channel (310) and the second channel (320) are both larger than the diameter of the damping plug (330).

2. The built-in lateral shifter according to claim 1, characterized in that: The diameter of the damping hole (331) is set to 1.5-2.2 mm; the thickness of the damping plug (330) is set to 2-5 mm.

3. The built-in lateral shifter according to claim 1, characterized in that: The damping stop (330) is positioned at the end of the first channel (310) away from the second channel (320), at the end of the first channel (310) close to the second channel (320), at the end of the second channel (320) close to the first channel (310), and at the end of the second channel (320) away from the first channel (310).

4. The built-in lateral shifter according to claim 1, characterized in that: The side-shifting cylinder (120) is configured as a double-headed piston rod structure; the side-shifting cylinder (120) includes a cylinder body (121) and two piston rods (122), and the two piston rods (122) are respectively fixedly connected to both sides of the side-shifting frame assembly (200); the two right-angle damping joints (300) are fixedly installed on the two working oil ports of the side-shifting cylinder (120); the other ends of the two right-angle damping joints (300) are respectively connected to the corresponding interfaces of the reversing valve through oil pipes to form two independent and sealed hydraulic circuits.

5. The built-in lateral shifter according to claim 4, characterized in that: The cylinder body (121) has a stepped hole (123) inside that contacts the piston rod (122). The diameter of the stepped hole (123) is set to 30-35mm, and the diameter of the piston rod (122) is at least 10mm larger than the diameter of the stepped hole (123).

6. The built-in lateral shifter according to claim 4, characterized in that: A sealing guide assembly (124) for dynamic sealing and radial support is provided between the end of the cylinder (121) and the piston rod (122). A fixing block (125) is fixedly installed on the outer surface of the end of the cylinder (121), and the sealing guide assembly (124) is fixedly connected to the fixing block (125).

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