Large-torque balancing weight flat type electric forklift motor

Abstract

The invention discloses a large-torque balancing weight flat type electric forklift motor which comprises a motor shell composed of a front end cover, a rear end cover and a shell, a cooling fan is arranged on the inner side wall of the rear end cover, an air inlet is formed in the rear end cover, and a plurality of first through holes are formed in the shell at intervals; the inner shell is arranged on the inner side of the outer shell in an attached mode, the inner shell is movably arranged in the horizontal direction, a plurality of second through holes are formed in the inner shell at intervals, the first through holes and the second through holes partially correspond in an overlapped mode in the normal state, and the overlapped part communicates the outside with the interior of the motor shell. Through the arranged adjusting assembly, the internal temperature of the motor shell can be monitored in real time through the temperature sensor, temperature information is transmitted to the controller when the temperature rises, the controller controls the driving part to abut against the inner shell and change the position of the inner shell, and therefore the position of the second through hole is adjusted, and the heat dissipation effect is improved; therefore, the heat dissipation mode is adjusted according to the actual working condition, and high flexibility is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of electric forklift motors, and in particular relates to a large-torque counterweight flat electric forklift motor. Background Art

[0002] The high-torque counterbalanced flat electric forklift motor is a specially designed motor, which is specially designed for the high torque requirements and smooth operation of electric forklifts. It can provide strong rotational torque to meet the needs of forklifts during heavy load lifting and handling. It is also equipped with a balance block of appropriate quality to help improve the stability and safety of forklift operation.

[0003] Existing flat motors with large torque are generally provided with a heat dissipation structure during use. The fixed heat dissipation structure can usually only provide one heat dissipation mode and cannot be adjusted according to actual working conditions and ambient temperature. Summary of the invention

[0004] The present invention aims at solving the problems in the prior art and proposes the following technical solutions:

[0005] The present invention provides a large torque counterweight flat electric forklift motor, comprising:

[0006] A motor housing is composed of a front cover, a rear cover and an outer shell, a heat dissipation fan is arranged on the inner side wall of the rear cover, an air inlet is arranged on the rear cover, and a plurality of through holes are arranged at intervals on the outer shell;

[0007] An inner shell, wherein the inner shell is fitted on the inner side of the outer shell, the inner shell is movably arranged in the horizontal direction, and a plurality of through holes are arranged at intervals on the inner shell, wherein the through holes 1 and 2 partially overlap and correspond to each other under normal conditions, and the overlapping parts communicate with the outside and the inside of the motor housing;

[0008] and an adjustment component, the adjustment component including a temperature sensor, a driving member and a controller arranged inside the motor housing, the driving member being arranged at the inner side wall position of the rear end cover, and the driving member corresponding to the position of the inner shell, the temperature sensor transmitting the temperature information to the controller, and the controller controlling the driving member to resist and push the inner shell, change the position of the inner shell, and adjust the positional relationship between the through hole 2 and the through hole 1.

[0009] As a preferred embodiment of the above technical solution, the driving member includes a fixed block arranged on the inner side wall of the rear end cover, the fixed block includes a coaxially arranged annular hole, a movable block is elastically arranged on the side of the fixed block away from the rear end cover, the movable block is provided with an annular groove, the movable block closes one end of the annular hole, and the annular groove and the annular hole correspond to the positions of the annular hole to form a flow channel with a variable volume, and an extension ring is also arranged on the end of the movable block away from the fixed block, and the extension ring corresponds to the position of the inner shell.

[0010] As a preferred embodiment of the above technical solution, a liquid inlet pipe and a liquid outlet pipe are arranged on the rear end cover at positions corresponding to the flow channel, and regulating valves are arranged on the liquid inlet pipe and the liquid outlet pipe, and the regulating valves are electrically connected to the controller.

[0011] As a preferred embodiment of the above technical solution, a mounting seat is provided on the inner side of the inner shell, a mounting groove 1 is provided on the mounting seat, one end of the inner shell is movably embedded in the mounting groove 1, and a plurality of springs 1 are provided in the mounting groove 1, and the two ends of the springs 1 are respectively connected to the inner wall of the mounting groove 1 and the inner shell.

[0012] As a preferred embodiment of the above technical solution, a second installation groove and a plug-in portion are respectively provided at one end of the fixed block and the movable block that are close to each other, the plug-in portion is movably embedded in the second installation groove, and a plurality of second springs are provided in the second installation groove, and the two ends of the second springs are respectively connected to the inner wall of the second installation groove and the plug-in portion.

[0013] The beneficial effects of the present invention are:

[0014] (1) The present invention can monitor the internal temperature of the motor housing in real time through the temperature sensor by setting the adjustment component, and transmit the temperature information to the controller when the temperature rises. The controller controls the driving member to contact the inner shell, change the position of the inner shell, thereby adjusting the position of the second through hole to improve the heat dissipation effect, thereby adjusting the heat dissipation mode according to the actual working conditions, and has strong flexibility.

[0015] (2) The present invention can change the volume of the flow channel while forming a water cooling cycle by providing a fixed block, a movable block and an extension ring, thereby driving the inner shell and further increasing the heat dissipation effect inside the motor housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a schematic diagram of the structure of a forklift motor in an embodiment;

[0017] Figure 2 Shown is the actual Figure 1 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 3 Shown is a schematic diagram of a fixed ring and a movable ring in an embodiment;

[0019] Figure 4 What is shown is a schematic diagram of the structure of the side surface of the fixing ring in the embodiment;

[0020] Figure 5 It shows Figure 1 Schematic diagram of the enlarged structure at B in the middle;

[0021] Figure 6 Shown is a schematic diagram of a through hole 1 on the housing;

[0022] Figure numerals: 10, motor body; 11, cooling fan; 12, air inlet; 20, temperature sensor; 21, outer shell; 22, through hole one; 31, inner shell; 32, through hole two; 33, mounting seat; 34, mounting groove one; 35, spring one; 41, fixed block; 411, annular hole; 42, movable block; 43, flow channel; 44, extension ring; 45, liquid inlet pipe; 46, liquid outlet pipe; 451, regulating valve; 401, mounting groove two; 402, spring two; 403, plug-in part. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0024] Example

[0025] like Figure 1 , Figure 6 As shown, Figure 1 What is shown is a schematic diagram of the structure of a forklift motor in an embodiment; Figure 6 Shown is a schematic diagram of a through hole 1 on the housing;

[0026] The device includes:

[0027] The motor housing is composed of a front cover, a rear cover and a housing 21. A cooling fan 11 is arranged on the inner wall of the rear cover, an air inlet 12 is arranged on the rear cover, and a plurality of through holes 22 are arranged at intervals on the housing 21.

[0028] The inner shell 31 is arranged on the inner side of the outer shell 21, and the inner shell 31 is arranged to move in the horizontal direction. The inner shell 31 is provided with a plurality of through holes 32 arranged at intervals. The through holes 22 and the through holes 32 partially overlap and correspond to each other under normal conditions, and the overlapping part communicates with the outside and the inside of the motor housing;

[0029] A filter is provided at the air inlet 12 to prevent dust and impurities from entering. The motor body 10 is provided inside the motor housing, and the inner shell 31 is movably installed on the inner side of the outer shell 21. Figure 1 As shown in the coordinate system, the X-axis represents the horizontal direction, and the Y-axis represents the vertical direction. The inner shell 31 can change its position along the X-axis direction, thereby changing the position correspondence between the through hole 1 22 and the through hole 2 32. Under normal circumstances, the cooling fan 11 is turned on, and the through hole 1 22 and the through hole 2 32 are not completely aligned, that is, partially aligned, which plays a role in conventional heat dissipation and can also protect the inside of the motor housing.

[0030] By adjusting the corresponding positions of the through hole 1 22 and the through hole 2 32 , the heat dissipation strength can be adjusted. The more the through hole 1 22 and the through hole 2 32 overlap, the greater the ventilation volume, the faster the heat dissipation speed, and the better the heat dissipation effect.

[0031] When the inner shell 31 moves to the left, the overlapping portion of the through hole 1 22 and the through hole 2 32 will gradually increase, and when the inner shell 31 moves to a state where the through hole 1 22 and the through hole 2 32 are completely aligned, it cannot continue to move to the left.

[0032] like Figure 1 As shown, Figure 1 What is shown is a schematic diagram of the structure of a forklift motor in an embodiment;

[0033] It also includes an adjustment component, which includes a temperature sensor 20, a driver and a controller arranged inside the motor housing. The driver is arranged at the inner wall of the rear end cover, and the driver corresponds to the position of the inner shell 31 and can contact the inner shell 31 to move it to the left. The temperature sensor 20, the driver and the controller are all signal-connected. The temperature sensor 20 transmits temperature information to the controller, and the controller controls the driver to contact the inner shell 31, change the position of the inner shell 31, and adjust the position of the second through hole 32.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, Figure 1 What is shown is a schematic diagram of the structure of a forklift motor in an embodiment; Figure 2 Shown is the actual Figure 1 A schematic diagram of the structure enlargement in the middle; Figure 3 Shown is a schematic diagram of a fixed ring and a movable ring in an embodiment; Figure 4 Shown is a schematic structural diagram of the side surface of the fixing ring in the embodiment.

[0035] The driving member includes a fixed block 41 arranged on the inner side wall of the rear end cover, the fixed block 41 includes a coaxially arranged annular hole 411, a movable block 42 is elastically arranged on a side of the fixed block 41 away from the rear end cover, the movable block 42 is provided with an annular groove, the movable block 42 closes one end of the annular hole 411, and the annular groove and the annular hole 411 correspond to each other to form a flow channel 43 with a variable volume, and an extension ring 44 is further arranged on one end of the movable block 42 away from the fixed block 41, and the extension ring 44 corresponds to the position of the inner shell 31;

[0036] By changing the amount of liquid injected into the flow channel 43 and adjusting the position of the movable block 42 , the extension ring 44 is driven to contact the inner shell 31 . The position of the inner shell 31 is changed to change the position of the second through hole 32 , thereby changing the misalignment state of the first through hole 22 and the second through hole 32 .

[0037] The flow channel 43 is used to inject and circulate cooling liquid, which further increases the heat dissipation effect. The fixed block 41 and the movable block 42 are both arranged in a ring shape. When the liquid injected into the flow channel 43 increases, the volume of the flow channel 43 can be increased, that is, the movable block 42 is pushed to move toward the end close to the inner shell 31, and the extension ring 44 moves with the movable block 42. During the movement, the extension ring 44 will contact the inner shell 31 to push the inner shell 31, thereby changing the position of the through hole 2 32.

[0038] like Figure 1 , Figure 2 As shown, Figure 1 What is shown is a schematic diagram of the structure of a forklift motor in an embodiment; Figure 2 Shown is the actual Figure 1 A schematic diagram of the structure enlargement in the middle;

[0039] A liquid inlet pipe 45 and a liquid outlet pipe 46 are provided at positions corresponding to the flow channel 43 on the rear end cover, and a regulating valve 451 is provided on both the liquid inlet pipe 45 and the liquid outlet pipe 46;

[0040] The liquid inlet pipe 45 and the liquid outlet pipe 46 are both connected to an external cooling source, such as a water tank. The regulating valve 451 is electrically connected to the controller. The controller can control the regulating valve 451 to change the flow rate of the liquid entering or discharging the flow channel 43. When the flow rate of the liquid inlet pipe 45 is greater than the flow rate of the liquid outlet pipe 46, the liquid in the flow channel 43 will gradually increase, thereby realizing the pushing of the movable block 42.

[0041] like Figure 1 , Figure 5 As shown, Figure 1 What is shown is a schematic diagram of the structure of a forklift motor in an embodiment; Figure 5 It is shown that Figure 1 Schematic diagram of the enlarged structure at B in the middle;

[0042] A mounting seat 33 is provided on the inner side of the inner shell 31, and a mounting groove 34 is provided on the mounting seat 33. One end of the inner shell 31 is movably embedded in the mounting groove 34, and a plurality of springs 35 are provided in the mounting groove 34. The two ends of the springs 35 are respectively connected to the inner wall of the mounting groove 34 and the inner shell 31.

[0043] The mounting seat 33 and the spring 1 35 are provided to realize the movable mounting of the inner shell 31. When the inner shell 31 is pushed by the driving member on the right side, the spring 1 35 is compressed and moves to the left side.

[0044] like Figure 1 , Figure 2 As shown, Figure 1 What is shown is a schematic diagram of the structure of a forklift motor in an embodiment; Figure 2 Shown is the actual Figure 1 A schematic diagram of the structure enlargement in the middle;

[0045] The fixed block 41 and the movable block 42 are respectively provided with a mounting groove 401 and a plug-in portion 403 at one end close to each other. The plug-in portion 403 is movably embedded in the mounting groove 401, and a plurality of springs 402 are provided in the mounting groove 401. The two ends of the springs 402 are respectively connected to the inner wall of the mounting groove 401 and the plug-in portion 403.

[0046] By providing the second installation groove 401 and the plug-in portion 403, the movable installation of the movable block 42 is realized.

[0047] Working principle: Under normal conditions, the device dissipates heat by turning on the heat dissipation fan 11, and under normal conditions, the through hole 1 22 and the through hole 2 32 are partially aligned, which plays a role of conventional heat dissipation and can also protect the inside of the motor housing; when the effect of conventional heat dissipation does not meet a specific working condition, the internal temperature of the motor housing will rise, and the temperature sensor 20 transmits the temperature information to the controller, and the controller controls the regulating valve 451 of the liquid inlet pipe 45 to increase the inlet flow rate of the liquid inlet pipe 45 so that the inlet flow rate is greater than the outlet flow rate. Then, the liquid in the flow channel 43 will gradually increase, thereby pushing the movable block 42. The extension ring 44 at the end of the movable block 42 will contact the inner shell 31, pushing the inner shell 31 to move to the left, so that the overlapping part of the through hole 1 22 and the through hole 2 32 will gradually increase until the through hole 1 22 and the through hole 2 32 are completely aligned. At this time, as the heat dissipation hole increases, the heat dissipation effect is enhanced. After the temperature gradually decreases, the controller will control the regulating valve 451 of the liquid inlet pipe 45 to gradually reduce the inlet flow until the normal state is restored.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. High torque counterbalance flat electric forklift motor, characterized by: include: A motor housing composed of a front cover, a rear cover and an outer shell (21), wherein a heat dissipation fan (11) is arranged on the inner side wall of the rear cover, an air inlet (12) is arranged on the rear cover, and a plurality of through holes (22) are arranged at intervals on the outer shell (21); An inner shell (31), the inner shell (31) being arranged in close contact with the inner side of the outer shell (21), the inner shell (31) being arranged movably in the horizontal direction, a plurality of second through holes (32) being arranged at intervals on the inner shell (31), the first through hole (22) and the second through hole (32) partially overlapping and corresponding to each other under normal conditions, and the overlapping portion communicating with the outside and the inside of the motor housing; and an adjustment component, the adjustment component comprising a temperature sensor (20) arranged inside the motor housing, a driving member and a controller, the driving member being arranged at the inner side wall of the rear end cover, and the driving member corresponding to the position of the inner housing (31), the temperature sensor (20) transmitting temperature information to the controller, and the controller controlling the driving member to contact and push the inner housing (31), thereby changing the position of the inner housing (31) and adjusting the positional relationship between the second through hole (32) and the first through hole (22).

2. The large torque counterbalanced flat electric forklift motor according to claim 1, characterized in that: The driving member comprises a fixed block (41) arranged on the inner side wall of the rear end cover, the fixed block (41) comprising a coaxially arranged annular hole (411), a movable block (42) being elastically arranged on a side of the fixed block (41) away from the rear end cover, the movable block (42) being provided with an annular groove, the movable block (42) closing one end of the annular hole (411), and the annular groove and the annular hole (411) corresponding in position to form a flow channel (43) with a variable volume, and an extension ring (44) being further arranged on one end of the movable block (42) away from the fixed block (41), the extension ring (44) corresponding in position to the inner shell (31).

3. The large torque counterbalanced flat electric forklift motor according to claim 2, characterized in that: A liquid inlet pipe (45) and a liquid outlet pipe (46) are provided on the rear end cover at positions corresponding to the flow channel (43), and a regulating valve (451) is provided on both the liquid inlet pipe (45) and the liquid outlet pipe (46), and the regulating valve (451) is electrically connected to a controller.

4. The large torque counterbalanced flat electric forklift motor according to claim 1, characterized in that: A mounting seat (33) is provided on the inner side of the inner shell (31), a mounting groove (34) is provided on the mounting seat (33), one end of the inner shell (31) is movably embedded in the mounting groove (34), and a plurality of springs (35) are provided in the mounting groove (34), and two ends of the springs (35) are respectively connected to the inner wall of the mounting groove (34) and the inner shell (31).

5. The large torque counterbalanced flat electric forklift motor according to claim 2, characterized in that: The fixed block (41) and the movable block (42) are respectively provided with a second mounting groove (401) and a plug-in portion (403) at one end close to each other. The plug-in portion (403) is movably embedded in the second mounting groove (401), and a plurality of second springs (402) are provided in the second mounting groove (401). The two ends of the second springs (402) are respectively connected to the inner wall of the second mounting groove (401) and the plug-in portion (403).

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