Wheel position change and power change continuation structure

Abstract

The invention provides a wheel position change and power change continuation structure. The wheel position change and power change continuation structure comprises a frame; a front walking wheel assembly and a rear walking wheel assembly are installed on the front side and the rear side of the frame respectively and connected through an upper swing rod, and a lower swing rod is connected to the middle section of the upper swing rod. The lower swing rod is connected to the power shaft and driven by the power shaft to rotate so that the lower swing rod can drive the upper swing rod to move along the rotating axis of the lower swing rod. By means of the power transmission mode with a reliable structure and high efficiency, it can be guaranteed that power transmission is continuous and unchanged after the wheel position changes, the service life of the bearing of the supporting shaft is long, and the long-term operation stability is extremely good.

Description

Technical Field

[0001] The invention relates to a wheel position changing power continuation structure, belonging to the technical field of logistics mechanical equipment. Background Art

[0002] At present, the two-way shuttles and four-way shuttles widely used in the field of logistics and warehousing usually have their wheels running on tracks. The position of the wheels relative to the vehicle body is changed by eccentric lifting, thereby achieving the lifting and lowering of the vehicle body and the storage and retrieval of goods. However, after the wheel position changes, the relative center distance between the power transmission shaft and the travel wheel shaft will change, resulting in the cutting off of power transmission. The current common solution is to install a flexible and retractable universal coupling. In addition to torque, this method subjects the connected shaft to radial and axial forces, which seriously affects the bearing life of the support shaft, and the life and stability of the universal transmission are low. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a wheel position change power continuation structure, which can ensure continuous power transmission after the wheel position changes in a structurally reliable and efficient power transmission manner.

[0004] The present invention is achieved through the following technical solutions.

[0005] The present invention provides a wheel position change power continuation structure, which comprises a frame; a front running wheel assembly and a rear running wheel assembly are respectively installed on the front and rear sides of the frame, the rear running wheel assembly and the front running wheel assembly are connected by an upper swing rod, and a lower swing rod is connected to the middle section of the upper swing rod; the lower swing rod is connected to a power shaft, and is driven to rotate by the power shaft so that the lower swing rod drives the upper swing rod to move along the rotation axis of the lower swing rod.

[0006] The upper swing rod is rotatably connected to the rear running wheel assembly and the front running wheel assembly through a linkage shaft.

[0007] The lower swing rod is installed at the midpoint of the line connecting the rear running wheel assembly and the front running wheel assembly through a bearing seat.

[0008] The front running wheel assembly and the rear running wheel assembly have the same structure.

[0009] The front running wheel assembly is composed of a running wheel, which is mounted on a rotating shaft. A transmission gear is coaxially mounted on the rotating shaft. The transmission gear is meshed and transmitted to a fixed gear. The fixed gear is mounted on a transmission shaft. The transmission shaft and the rotating shaft are both mounted on a hinge rod, and the hinge rod is connected to an upper swing rod.

[0010] The rotating shaft is installed on the hinge rod through the second bearing, the transmission shaft is installed on the hinge rod through the first bearing, the transmission shaft is rotatably installed on the bearing seat, and the bearing seat is fixed to the frame.

[0011] A power transmission bevel gear is fixed at the inner end of the transmission shaft for power transmission input.

[0012] The hinge rod is an L-shaped block, the upper swing rod is connected to the long end, the rotating shaft is installed at the short end, and the transmission shaft is installed at the bending part of the middle section.

[0013] The transmission gear key is connected to the rotating shaft, and the fixed gear key is connected to the transmission shaft.

[0014] The beneficial effects of the present invention are: it can ensure continuous power transmission after the wheel position changes in a structurally reliable and efficient power transmission mode, the bearing of the support shaft has a long life and excellent long-term operating stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the structure of at least one embodiment of the present invention;

[0016] Figure 2 yes Figure 1 A schematic diagram of the structure of the middle front running wheel assembly;

[0017] Figure 3 yes Figure 2 Schematic diagram of the structure without the power transmission bevel gear and bearing seat.

[0018] In the figure: 1-front running wheel assembly, 2-frame, 3-power shaft, 4-rear running wheel assembly, 5-lower swing rod, 6-bearing seat, 7-linkage shaft, 8-upper swing rod, 101-hinge rod, 102-first bearing, 103-second bearing, 104-rotating shaft, 105-transmission shaft, 106-fixed gear, 107-transmission gear, 108-running wheel, 109-power transmission bevel gear, 110-bearing seat. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0020] A first embodiment of the present invention relates to Figures 1 to 3 The wheel position change power continuation structure shown includes a frame 2; a front running wheel assembly 1 and a rear running wheel assembly 4 are respectively installed on the front and rear sides of the frame 2, the rear running wheel assembly 4 and the front running wheel assembly 1 are connected by an upper swing rod 8, and a lower swing rod 5 is connected to the middle section of the upper swing rod 8; the lower swing rod 5 is connected to the power shaft 3, and is driven to rotate by the power shaft 3 so that the lower swing rod 5 drives the upper swing rod 8 to move along the rotation axis of the lower swing rod 5.

[0021] The second embodiment of the present invention is substantially the same as the first embodiment, mainly in that the upper swing link 8 is rotatably connected to the rear running wheel assembly 4 and the front running wheel assembly 1 via the linkage shaft 7 .

[0022] Furthermore, the lower swing link 5 is installed at the midpoint of the line connecting the rear running wheel assembly 4 and the front running wheel assembly 1 through the bearing seat 6.

[0023] Furthermore, the front running wheel assembly 1 and the rear running wheel assembly 4 have the same structure.

[0024] The third embodiment of the present invention is substantially the same as the first embodiment, mainly in that the front running wheel assembly 1 is composed of a running wheel 108, the running wheel 108 is mounted on a rotating shaft 104, a transmission gear 107 is coaxially mounted on the rotating shaft 104, the transmission gear 107 is meshed and transmitted to a fixed gear 106, the fixed gear 106 is mounted on a transmission shaft 105, the transmission shaft 105 and the rotating shaft 104 are both mounted on a hinge rod 101, and the hinge rod 101 is connected to the upper swing link 8.

[0025] Furthermore, the rotating shaft 104 is installed on the hinge rod 101 through the second bearing 103 , the transmission shaft 105 is installed on the hinge rod 101 through the first bearing 102 , and the transmission shaft 105 is rotatably installed on the bearing seat 110 , and the bearing seat 110 is fixed to the frame 2 .

[0026] Furthermore, a power transmission bevel gear 109 is fixed to the inner end of the transmission shaft 105 for power transmission input.

[0027] Furthermore, the hinge rod 101 is an L-shaped block, the upper swing rod 8 is connected to the long end, the rotating shaft 104 is installed at the short end, and the transmission shaft 105 is installed at the bend in the middle section.

[0028] Furthermore, the transmission gear 107 is key-connected to the rotating shaft 104 , and the fixed gear 106 is key-connected to the transmission shaft 105 .

[0029] The fourth embodiment of the present invention is combined with the above-mentioned embodiments, including a front running wheel assembly 1 and a rear running wheel assembly 4 respectively mounted on both sides of the vehicle frame 2, and the power shaft 3 drives the parallelogram of the connecting rod mechanism to swing, the power shaft 3 is mounted on the bearing seat 6, and the end of the power shaft 3 is equipped with a lower swing rod 5, and the lower swing rod 5 is connected to the center position of the upper swing rod 8 through a shaft and a key. The holes at both ends of the upper swing rod 8 are equipped with oil-free bushings as rotating hinges, and the hinge rods 101 on both sides are connected through the hinge shaft. At this point, the rotation of the power shaft 3 drives the swing of the hinge rods 101 on both sides.

[0030] The first bearing 103 and the second bearing 103 are installed on the two holes at the upper and lower parts of the corresponding rocker arm, and the second bearing 103 is installed with a rotating shaft 104. The rotating shaft 104 is connected with a transmission gear 107 through a key connection, and a running wheel 108 is installed at the end. The corresponding first bearing 103 is equipped with a fixed gear 106 through a transmission shaft 105. One end of the transmission shaft 105 is equipped with a power transmission bevel gear 109 for linkage of running wheels in two directions. Here, the transmission shaft 105 is installed on the bearing seat 110, and the bearing seat 110 is installed on the frame 2. The power is driven by the transmission bevel gear 109 to drive the rotation of the transmission shaft 105, and the fixed gear 106 on the corresponding shaft rotates, and the transmission gear 107 is driven to rotate through the meshing transmission of the gears, and at the same time, the running wheel 108 rotates, that is, walking.

[0031] The swing of the corresponding hinge rod 101 will rotate around the transmission shaft 105 as the center, and at the same time, the fixed gear 106 and the transmission gear 107 still maintain a meshing state, so as to keep the transmission of the walking power. That is, although the position of the walking wheel changes, it always maintains the meshing state through the fixed gear 106 and the transmission gear 107, and rotates around the transmission shaft 105 as the center, so as to always keep the transmittable power.

Claims

1. A wheel position change variable force continuation structure, comprising a frame (2), characterized in that: The front and rear sides of the frame (2) are respectively mounted with a front running wheel assembly (1) and a rear running wheel assembly (4); the rear running wheel assembly (4) and the front running wheel assembly (1) are connected via an upper swing rod (8); a lower swing rod (5) is connected to the middle section of the upper swing rod (8); the lower swing rod (5) is connected to a power shaft (3) and is driven to rotate by the power shaft (3) so that the lower swing rod (5) drives the upper swing rod (8) to move along the rotation axis of the lower swing rod (5).

2. The wheel position change force continuation structure according to claim 1, characterized in that: The upper swing rod (8) is rotatably connected to the rear running wheel assembly (4) and the front running wheel assembly (1) via a linkage shaft (7).

3. The wheel position change force continuation structure according to claim 1, characterized in that: The lower swing rod (5) is installed at the midpoint of the line connecting the rear running wheel assembly (4) and the front running wheel assembly (1) via a bearing seat (6).

4. The wheel position change force continuation structure according to claim 1, characterized in that: The front running wheel assembly (1) and the rear running wheel assembly (4) have the same structure.

5. The wheel position change force continuation structure according to claim 1, characterized in that: The front running wheel assembly (1) is composed of a running wheel (108), which is mounted on a rotating shaft (104). A transmission gear (107) is coaxially mounted on the rotating shaft (104). The transmission gear (107) is meshed with a fixed gear (106) for transmission. The fixed gear (106) is mounted on a transmission shaft (105). The transmission shaft (105) and the rotating shaft (104) are both mounted on a hinge rod (101), and the hinge rod (101) is connected to an upper swing rod (8).

6. The wheel position change force continuation structure according to claim 5, characterized in that: The rotating shaft (104) is mounted on the hinge rod (101) via a second bearing (103), the transmission shaft (105) is mounted on the hinge rod (101) via a first bearing (102), the transmission shaft (105) is rotatably mounted on a bearing seat (110), and the bearing seat (110) is fixed to the vehicle frame (2).

7. The wheel position change force continuation structure according to claim 5, characterized in that: A power transmission bevel gear (109) is fixed to the inner end of the transmission shaft (105) for power transmission input.

8. The wheel position change force continuation structure according to claim 5, characterized in that: The hinge rod (101) is an L-shaped block, the upper swing rod (8) is connected to the long end, the rotating shaft (104) is installed at the short end, and the transmission shaft (105) is installed at the bend in the middle section.

9. The wheel position change force continuation structure according to claim 5, characterized in that: The transmission gear (107) is key-connected to the rotating shaft (104), and the fixed gear (106) is key-connected to the transmission shaft (105).

Images