Forklift mast raising full stroke control mounting structure

Abstract

The utility model relates to the technical field of fork-lift truck and discloses a fork-lift truck portal hoisting full stroke control mounting structure, including fork-lift truck portal, the fork-lift truck portal is jointly composed by outer portal, middle portal, inner portal and side shifter, the side wall of outer portal is seted up with the plug -in hole, the side wall of outer portal and the both sides symmetry welding fixed of plug -in hole have the upper installation cylinder, the surface of upper installation cylinder is collectively installed and fixed with upper installation assembly, the inside welding fixed of side shifter has rear frame stand column board, the side wall symmetry welding fixed of rear frame stand column board has lower installation cylinder, the surface of upper installation cylinder is collectively installed and fixed with lower installation assembly, the inside symmetry of upper installation assembly is inserted and is installed with assembly rod, the both ends of assembly rod are inserted and installed with pin rod. The utility model solves the problem of the disorderly arrangement of the portal wire harness and the unattractive appearance without affecting the normal stroke control of the portal.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and in particular to a forklift mast lifting full-stroke control installation structure. Background Technology

[0002] As the forklift market continues to expand and competition intensifies, especially in overseas markets, customers are demanding increasingly higher and more reliable forklift mast configurations, particularly for Class II warehouse models. Due to the higher mast height, most customers equip their basic models with height recognition and vertical buffer functions to achieve one-button lifting to a specific height. Currently, this is achieved using encoders, proximity switches, and sensor plates. However, for Class III masts, the structure can only control the rear cylinder. For example, height recognition requires the front cylinder to reach the desired height before it has fully traveled, which the current structure cannot achieve. Electrical buffering reduces the impact of lifting and lowering, currently implemented using proximity switches and sensor plates. This electrical buffering method is not very reliable, and some customers require long sensor plates welded to the mast, reducing production efficiency and aesthetics. Some customers require Australian standards, which is also currently achieved using sensor plates and proximity switches. If a customer simultaneously requires height certification, vertical buffering, and Australian standard OPS, this results in five mast proximity switches, numerous wiring harnesses, and messy mast wiring arrangements. Therefore, a new mast lifting height full-stroke control installation structure is proposed. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to propose a forklift mast lifting full-stroke control installation structure, which solves the problem of messy and unsightly mast wiring harness layout without affecting the normal stroke control of the mast.

[0004] The forklift mast lifting full-stroke control installation structure proposed in this utility model includes a forklift mast, which is composed of an outer mast, a middle mast, an inner mast, and a side shifter.

[0005] The outer gantry has insertion holes on its side wall. Upper mounting cylinders are symmetrically welded and fixed on the side wall of the outer gantry and on the upper and lower sides of the insertion holes. The upper mounting assembly is fitted and fixed on the surface of the upper mounting cylinders.

[0006] The rear frame column plate is welded and fixed inside the lateral shifter. The lower mounting cylinder is symmetrically welded and fixed to the side wall of the rear frame column plate. The lower mounting assembly is fitted and fixed to the surface of the upper mounting cylinder.

[0007] The upper mounting assembly has symmetrically inserted mounting rods inside, with pins inserted at both ends of the mounting rods. An encoder is movably mounted on the surface of the mounting rods, and a metering wheel is fixedly mounted on the input end of the encoder. A compression spring is mounted on the surface of the mounting rods between the encoder and the inner wall of the gantry mounting assembly.

[0008] The upper mounting assembly, the lower mounting assembly, and the internally assembled components are identical in structure and size.

[0009] Preferably, the lateral shifter has multiple signal amplifiers fixed inside, and each signal amplifier is fixed to the encoder in a one-to-one correspondence and is electrically connected by wires.

[0010] Preferably, a preload nut is threaded onto the connection between the wire and the encoder.

[0011] Preferably, a locking plate is fixed to the top of the outer gantry, and a hanging spring is hooked between the wire connected to the encoder above and the locking plate.

[0012] Preferably, a wire clip is fixed to the side wall of the outer gantry.

[0013] Preferably, the upper mounting assembly has symmetrically arranged fitting holes on its surface, and symmetrically arranged insertion holes on its surface.

[0014] The beneficial effects of this utility model are: simple structure, elimination of proximity switches and induction plates, and control of the mast running height by adding an encoder mounting assembly to both the fork carriage and the outer mast, thereby realizing multiple functions such as height authentication, upper and lower power buffer, Australian standard OPS, and electrical height limit. The meter wheel replaces the combination of proximity switches and induction plates used in traditional stroke control equipment, and solves the problem of messy and unsightly mast wiring harness layout without affecting the normal stroke control of the mast. Attached Figure Description

[0015] Figure 1 This is a rear view of the overall assembly of the forklift mast lifting full-stroke control installation structure proposed in this utility model.

[0016] Figure 2 The forklift mast lifting full-stroke control installation structure proposed in this utility model Figure 1 A magnified view of a portion of point A in the middle.

[0017] Figure 3 This is a front view of the overall assembly of the forklift mast lifting full-stroke control installation structure proposed in this utility model.

[0018] Figure 4 The forklift mast lifting full-stroke control installation structure proposed in this utility model Figure 3A magnified view of a section at point B.

[0019] Figure 5 The image shows the right-hand view of the overall assembly of the forklift mast lifting full-stroke control installation structure proposed in this utility model.

[0020] Figure 6 This is a first-height cross-sectional view of the forklift mast lifting full-stroke control installation structure proposed in this utility model.

[0021] Figure 7 This is a second-height cross-sectional view of the forklift mast lifting full-stroke control installation structure proposed in this utility model.

[0022] Figure 8 This is a schematic diagram of the upper mounting assembly of the forklift mast lifting full-stroke control mounting structure proposed in this utility model.

[0023] In the diagram: 1. Forklift mast; 11. Outer mast; 111. Insertion hole; 112. Upper mounting cylinder; 12. Middle mast; 13. Inner mast; 14. Side shifter; 141. Rear frame upright plate; 142. Lower mounting cylinder; 2. Upper mounting assembly; 21. Assembly rod; 22. Pin; 23. Encoder; 24. Meter wheel; 25. Compression spring; 3. Lower mounting assembly; 4. Signal amplifier; 5. Wire; 6. Locking plate; 7. Hanging spring; 8. Cable clip. Detailed Implementation

[0024] Reference Figure 1-8 The forklift mast lifting full-stroke control installation structure includes a forklift mast 1, which is composed of an outer mast 11, a middle mast 12, an inner mast 13 and a side shifter 14. The four structures of the outer mast 11, middle mast 12, inner mast 13 and side shifter 14 are conventional forklift structures and will not be described in detail here.

[0025] An insertion hole 111 is provided on the side wall of the outer gantry 11. The upper encoder 23 enters the insertion hole 111, so that the upper meter wheel 24 can fit against the inner wall of the middle gantry 12. The upper mounting cylinder 112 is symmetrically welded and fixed on the side wall of the outer gantry 11 and on the upper and lower sides of the insertion hole 111. The upper mounting assembly 2 is fitted and fixed on the surface of the upper mounting cylinder 112.

[0026] The rear frame column plate 141 is welded and fixed inside the side shifter 14. The lower mounting column 142 is symmetrically welded and fixed to the side wall of the rear frame column plate 141. The lower mounting assembly 3 is fitted and fixed to the surface of the upper mounting column 112.

[0027] The mounting assembly 2 has symmetrically inserted mounting rods 21 inside. Pins 22 are inserted at both ends of the mounting rods 21. An encoder 23 is movably mounted on the surface of the mounting rods 21. A meter wheel 24 is fixedly mounted at the input end of the encoder 23. A compression spring 25 is mounted on the surface of the mounting rods 21 and between the encoder 23 and the inner wall of the gantry mounting assembly.

[0028] The upper mounting assembly 2 and the lower mounting assembly 3, as well as the internally assembled components, have completely identical structures and sizes. Figure 6 and Figure 7 The difference between the upper mounting assembly 2 and the lower mounting assembly 3 lies in the mounting position of the compression spring 25, one on the left and the other on the right.

[0029] By installing compression springs 25 in the upper mounting assembly 2 and the lower mounting assembly 3 respectively, the encoders 23 installed in the upper mounting assembly 2 and the lower mounting assembly 3 are compressed, thereby causing the metering wheel 24 mounted at the input end of the upper encoder 23 to be compressed and pressed against the inner wall of the middle gantry 12. (Reference) Figure 6 This causes the metering wheel 24 mounted at the lower encoding input end to be pressed against the outer wall of the inner gantry 13, for reference. Figure 7 This ensures the accuracy of the collected displacement data.

[0030] Figure 7 Number 33 is the lower encoder, and number 34 is the lower meter wheel.

[0031] Multiple signal amplifiers 4 are fixed inside the side shifter 14. The signal amplifiers 4 are fixed one-to-one with the encoder 23 and are electrically connected by wires 5. The position signal is transmitted to the terminal by the signal amplifiers 4, and the forklift driver obtains the position information to further operate the forklift mast 1.

[0032] When the forklift mast 1 is working, the outer mast 11, the middle mast 12, and the inner mast 13 move relative to each other. At this time, the upper and lower measuring wheels rotate to record the distance. The rotation of the measuring wheels drives the encoder input to rotate, thereby recording the distance data and sending the data to the driver through the signal amplifier.

[0033] A preload nut is threaded at the connection point between wire 5 and encoder 23.

[0034] A locking plate 6 is fixed on the top of the outer gantry 11, and a hanging spring 7 is hooked between the wire 5 connected to the encoder 23 and the locking plate 6.

[0035] A wire clip 8 is fixed to the side wall of the outer gantry 11. The wire clip 8 is used to position the wires 5 of the encoder 23 above.

[0036] The upper mounting assembly 2 has symmetrically arranged fitting holes on its surface. These fitting holes are used to mate with the mounting cylinder to achieve fitting of the mounting assembly. The upper mounting assembly 2 also has symmetrically arranged insertion holes 111 on its surface. These insertion holes 111 are used to insert the mounting rod 21 to achieve the assembly of the encoder 23.

Claims

1. A forklift mast raising full stroke control mounting structure comprising a forklift mast, characterized by: The forklift mast is composed of an outer mast, a middle mast, an inner mast, and a side shifter. The outer gantry has insertion holes on its side wall. Upper mounting cylinders are symmetrically welded and fixed on the side wall of the outer gantry and on the upper and lower sides of the insertion holes. The upper mounting assembly is fitted and fixed on the surface of the upper mounting cylinders. The rear frame column plate is welded and fixed inside the lateral shifter. The lower mounting cylinder is symmetrically welded and fixed to the side wall of the rear frame column plate. The lower mounting assembly is fitted and fixed to the surface of the upper mounting cylinder. The upper mounting assembly has symmetrically inserted mounting rods inside, with pins inserted at both ends of the mounting rods. An encoder is movably mounted on the surface of the mounting rods, and a metering wheel is fixedly mounted on the input end of the encoder. A compression spring is mounted on the surface of the mounting rods between the encoder and the inner wall of the gantry mounting assembly. The upper mounting assembly, the lower mounting assembly, and the internally assembled components are identical in structure and size.

2. The forklift mast lift full stroke control mounting structure of claim 1, wherein: The lateral shifter has multiple signal amplifiers fixed inside, and each signal amplifier is fixed to the encoder and electrically connected by wires.

3. The full stroke control mounting structure for a forklift mast according to claim 2, characterized by: A preload nut is threaded onto the connection between the wire and the encoder.

4. The full stroke control mounting structure for a forklift mast according to claim 2, characterized by: A locking plate is fixed to the top of the outer gantry, and a hanging spring is connected between the wire to which the encoder is connected and the locking plate.

5. The full stroke control mounting structure for a forklift mast according to claim 1, characterized by: The outer gantry is fixed with wire clips on its side wall.

6. The fork truck mast lift full stroke control mounting structure of claim 1, wherein: The upper mounting assembly has symmetrically arranged fitting holes on its surface at the top and bottom, and symmetrically arranged insertion holes on its surface at the left and right.

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