Power battery pack conveying roller line

Abstract

The utility model discloses a power battery pack conveying roller line which comprises a battery tray and two roller lines capable of carrying the battery tray to move, namely a forward roller line and a reverse roller line. The two sets of line changing mechanisms are arranged at the head end and the tail end of the reverse roller line respectively, and each set of line changing mechanism is connected with the reverse roller line; the line changing mechanism comprises a plurality of chain assemblies stretching across the two roller lines, and the chain assemblies can be driven by a lifting mechanism to ascend and descend between roller gaps of the two roller lines. The wire changing mechanism further comprises a lifting mechanism for driving all the chain assemblies to ascend and descend synchronously. According to the utility model, the line changing mechanism can transfer the battery tray between the forward roller line and the reverse roller line, and the chain of the line changing mechanism is effectively supported by the steel pipe and can bear the pressure of the power battery pack. When the power battery pack is transversely conveyed, the rolling wheels roll at the upper end of the steel pipe, friction force can be effectively reduced, and transverse moving difficulty is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor lines, in particular to a conveyor roller line for a power battery pack. Background Art

[0002] The power battery pack of new energy vehicles is heavy. A battery pack with 100 kWh of electricity weighs up to 0.5 tons. Therefore, it is difficult to transport the power battery pack. Existing technologies such as CN109911507A disclose the technology of transporting battery packs using roller lines. However, in the process of transferring the power battery packs between different conveyor lines, it is necessary to use hoisting and other methods, which is not only unsafe and inefficient, but also may damage the battery pack. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a power battery pack conveying roller line that can facilitate the movement of power battery packs between different roller lines.

[0004] Technical solution: To achieve the above-mentioned purpose, the power battery pack conveying roller line of the utility model includes a battery tray and two roller lines capable of carrying the battery tray to move, namely a forward roller line and a reverse roller line; it also includes two groups of line changing mechanisms disposed at the head and tail ends of the reverse roller line, each group of the line changing mechanisms is connected to the reverse roller line, and the line changing mechanism can transfer the battery tray between the forward roller line and the reverse roller line, so that the battery tray can make a loop movement; the line changing mechanism includes multiple groups of chain assemblies spanning the two roller lines, and the chain assemblies can be driven by a lifting mechanism to rise and fall between the roller gaps of the two roller lines; the line changing mechanism also includes a lifting mechanism that drives all the chain assemblies to rise and fall synchronously.

[0005] Furthermore, the chain assembly includes a steel pipe, and sprockets are rotatably installed at both ends of the steel pipe; a chain is arranged between the two sprockets, the upper half of the chain is placed on the upper side of the steel pipe, and the lower half of the chain is placed inside the steel pipe; the chain includes chain links and rollers, and also includes a cover plate covering the chain links.

[0006] Furthermore, the lower half of the chain has a pass-through portion that passes through the steel pipe downward, and the pass-through portion is connected to a driving sprocket; the driving sprockets corresponding to all the chain components are connected to the same first driving shaft; the first driving shaft is driven by a first motor. In this way, all chain components are driven by the first motor, which can effectively ensure the synchronization of the movement of the chain components and save costs.

[0007] Furthermore, a tensioning mechanism acting on the outlet portion is installed on the lower side of the middle portion of the steel pipe.

[0008] Furthermore, the chain assembly and the first motor are both installed on a lifting frame, and the line changing mechanism also includes a fixed base and a hydraulic cylinder; the lifting mechanism includes a second driving shaft rotatably installed on the fixed base and an articulated seat fixedly installed on the lifting frame, a lifting block is fixed on the second driving shaft, and the lifting block is rotatably connected to the articulated seat; a driving rod connected to the hydraulic cylinder is also fixed on the second driving shaft.

[0009] Furthermore, the second driving shaft is installed on both sides of the fixed base, and the jacking blocks are fixed at both ends of the same second driving shaft; a synchronous connecting rod is connected between the jacking blocks corresponding to the two second driving shafts, so that four-point support can be formed for the lifting frame to maintain the stability of the jacking.

[0010] Furthermore, trapezoidal positioning grooves are formed on both sides of the battery tray, and positioning cylinders are installed on both sides of the forward roller line, and the positioning cylinders are connected to positioning blocks that can be embedded in the positioning grooves. In this way, the battery tray can be positioned to facilitate the operation of the power battery pack on the conveyor line.

[0011] Beneficial effects: The power battery pack conveying roller line of the utility model has the following beneficial effects:

[0012] (1) The line-changing mechanism can transfer the battery tray between the forward roller line and the reverse roller line.

[0013] (2) The chain of the line-changing mechanism is effectively supported by the steel pipe and can withstand the pressure of the power battery pack. When the power battery pack is transported horizontally, the roller rolls on the upper end of the steel pipe, which can effectively reduce friction and reduce the difficulty of lateral movement.

[0014] (3) The structural design of the lifting mechanism can form four-point support for the lifting frame, maintain the stability of the jacking, and be able to withstand heavy loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structural diagram of the roller line for conveying power battery packs;

[0016] Figure 2 It is the structural diagram of the line changing mechanism;

[0017] Figure 3 is a cross-sectional view of the line-changing mechanism;

[0018] Figure 4 for Figure 3 The enlarged structure diagram of part A in the middle;

[0019] Figure 5 It is a structural diagram of the battery tray and positioning mechanism.

[0020] In the figure: 1-forward roller line; 2-reverse roller line; 3-line changing mechanism; 31-chain assembly; 31a-steel pipe; 31b-sprocket; 31c-chain; a-chain link; b-roller; c-cover plate; 31d-driving sprocket; 32-first driving shaft; 33-first motor; 34-tensioning mechanism; 35-lifting mechanism; 35a-second driving shaft; 35b-lifting block; 35c-articulated seat; 35d-synchronous connecting rod; 36-lifting frame; 37-fixed base; 38-hydraulic cylinder; 39-driving rod; 41-positioning cylinder; 42-positioning block; A-battery tray; A1-positioning groove. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] like Figure 1 The power battery pack conveying roller line shown includes a battery tray A and two roller lines capable of carrying the battery tray A, namely a forward roller line 1 and a reverse roller line 2; it also includes two groups of line changing mechanisms 3 disposed at the head and tail ends of the reverse roller line 2, each group of the line changing mechanisms 3 is connected to the reverse roller line 2, and the line changing mechanisms 3 can transfer the battery tray A between the forward roller line 1 and the reverse roller line 2, so that the battery tray A can make a loop movement; the line changing mechanism 3 includes multiple groups of chain assemblies 31 spanning the two roller lines, and the chain assemblies 31 can be driven by a lifting mechanism 35 to rise and fall between the roller gaps of the two roller lines; the line changing mechanism 3 also includes a lifting mechanism that drives all the chain assemblies 31 to rise and fall synchronously.

[0023] Specifically, if Figure 2-3 As shown, the chain assembly 31 includes a steel pipe 31a, and sprockets 31b are rotatably mounted at both ends of the steel pipe 31a; a chain 31c is arranged between the two sprockets 31b, and the upper half of the chain 31c is placed on the upper side of the steel pipe 31a, and the lower half of the chain 31c is placed in the steel pipe 31a; Figure 4 As shown, the chain 31c includes a link a and a roller b, and also includes a cover plate c covering the link a. With the above structure, the chain 31c is effectively supported by the steel pipe 31a and can withstand the pressure of the power battery pack. When the power battery pack is transported horizontally, the roller b rolls on the upper end of the steel pipe 31a, which can effectively reduce friction and reduce the difficulty of lateral movement.

[0024] The lower half of the chain 31c has a protruding portion that passes through the steel pipe 31a downwards, and the protruding portion is connected to the driving sprocket 31d; the driving sprockets 31d corresponding to all the chain assemblies 31 are connected to the same first driving shaft 32; the first driving shaft 32 is driven by the first motor 33. In this way, all the chain assemblies 31 are driven by the first motor 33, which can effectively ensure the synchronization of the movement of the chain assemblies 31 and save costs. In addition, a tensioning mechanism 34 acting on the protruding portion is installed on the lower side of the middle part of the steel pipe 31a.

[0025] The chain assembly 31 and the first motor 33 are both installed on a lifting frame 36, and the line changing mechanism 3 also includes a fixed base 37 and a hydraulic cylinder 38; the lifting mechanism 35 includes a second driving shaft 35a rotatably installed on the fixed base 37 and an articulated seat 35c fixedly installed on the lifting frame 36, and a lifting block 35b is fixed on the second driving shaft 35a, and the lifting block 35b is rotatably connected to the articulated seat 35c; a driving rod 39 connected to the hydraulic cylinder 38 is also fixed on the second driving shaft 35a.

[0026] like Figure 2-3 As shown, the second driving shaft 35a is installed on both sides of the fixed base 37, and the lifting blocks 35b are fixed at both ends of the same second driving shaft 35a; a synchronous connecting rod 35d is connected between the lifting blocks 35b corresponding to the two second driving shafts 35a, so that the lifting frame 36 can be supported at four points to maintain the stability of the lifting.

[0027] In addition, if Figure 5 As shown, trapezoidal positioning grooves A1 are formed on both sides of the battery tray A, and positioning cylinders 41 are installed on both sides of the forward roller line 1. The positioning cylinders 41 are connected to positioning blocks 42 that can be embedded in the positioning grooves A1. In this way, the battery tray A can be positioned to facilitate the operation of the power battery pack on the conveyor line.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A power battery pack conveyor roller line, characterized in that: It comprises a battery tray (A) and two roller lines capable of carrying the battery tray (A), namely a forward roller line (1) and a reverse roller line (2); it also comprises two groups of line-changing mechanisms (3) disposed at the head and tail ends of the reverse roller line (2), each group of the line-changing mechanisms (3) being connected to the reverse roller line (2); the line-changing mechanisms (3) comprising a plurality of groups of chain assemblies (31) spanning the two roller lines, the chain assemblies (31) being capable of being driven by a lifting mechanism (35) to be lifted and lowered between the roller gaps of the two roller lines; the line-changing mechanisms (3) also comprise a lifting mechanism for driving all the chain assemblies (31) to be lifted and lowered synchronously.

2. The power battery pack conveyor roller line according to claim 1, characterized in that: The chain assembly (31) comprises a steel pipe (31a), and sprockets (31b) are rotatably mounted at both ends of the steel pipe (31a); a chain (31c) is arranged between the two sprockets (31b), and the upper half of the chain (31c) is placed on the upper side of the steel pipe (31a), and the lower half of the chain (31c) is placed inside the steel pipe (31a); the chain (31c) comprises a chain link (a) and a roller (b), and also comprises a cover plate (c) covering the chain link (a).

3. The power battery pack conveyor roller line according to claim 2, characterized in that: The lower half of the chain (31c) has a protruding portion that protrudes downward from the steel pipe (31a), and the protruding portion is connected to a driving sprocket (31d); the driving sprockets (31d) corresponding to all the chain assemblies (31) are connected to the same first driving shaft (32); the first driving shaft (32) is driven by a first motor (33).

4. The power battery pack conveyor roller line according to claim 3, characterized in that: A tensioning mechanism (34) acting on the outlet portion is installed on the lower side of the middle portion of the steel pipe (31a).

5. The power battery pack conveyor roller line according to claim 3, characterized in that: The chain assembly (31) and the first motor (33) are both mounted on a lifting frame (36); the line-changing mechanism (3) further comprises a fixed base (37) and a hydraulic cylinder (38); the lifting mechanism (35) comprises a second driving shaft (35a) rotatably mounted on the fixed base (37) and an articulated seat (35c) fixedly mounted on the lifting frame (36); a lifting block (35b) is fixed on the second driving shaft (35a), and the lifting block (35b) is rotatably connected to the articulated seat (35c); a driving rod (39) connected to the hydraulic cylinder (38) is also fixed on the second driving shaft (35a).

6. The power battery pack conveyor roller line according to claim 5, characterized in that: The second driving shaft (35a) is installed on both sides of the fixed base (37), and the lifting blocks (35b) are fixed at both ends of the same second driving shaft (35a); a synchronous connecting rod (35d) is connected between the lifting blocks (35b) corresponding to the two second driving shafts (35a).

7. The power battery pack conveyor roller line according to claim 1, characterized in that: Trapezoidal positioning grooves (A1) are formed on both sides of the battery tray (A), and positioning cylinders (41) are installed on both sides of the forward roller line (1), and the positioning cylinders (41) are connected to positioning blocks (42) that can be embedded in the positioning grooves (A1).

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