Motor gear low-temperature starting testing device

Abstract

The utility model discloses a low-temperature starting testing device for a motor gear, belongs to the field of lubricating oil testing, and aims to solve the problems that when the performance of lubricating oil is detected by an existing low-temperature starting testing device for the motor gear, the previous lubricating oil needs to be completely discharged when the next lubricating oil is added, and the flowing speed of the lubricating oil is slowed down under the low-temperature condition; the motor gear low-temperature starting testing device comprises a freezing box, a motor arranged on the inner side of the freezing box, a first transmission shaft arranged at the output end of the motor, and a first gear arranged on the outer side of the first transmission shaft. By means of the structure, negative pressure can be generated in the pushing mechanism by pulling the pushing mechanism, lubricating oil in the gearbox is discharged in an accelerated mode, compared with the prior art, the discharging speed of the previous kind of lubricating oil is increased, and therefore the purpose of improving the testing efficiency is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lubricating oil testing, in particular to a motor gear low-temperature starting test device. BACKGROUND

[0002] The motor gear low-temperature starting test device is mainly used for testing the performance of lubricating oil in a low-temperature environment. The device simulates the actual low-temperature environment, starts the motor and gear at a certain speed, and detects the starting performance and lubricating performance of the lubricating oil in the low-temperature environment.

[0003] The low-temperature wind power gear box lubricating device with publication number CN207796050U adopts a tuning fork principle for the viscosity sensor to detect the viscosity of the lubricating oil in the gear box heating cavity and feed back the viscosity signal to the controller. The controller adopts PID open-loop control and takes the viscosity signal as an input parameter. However, the existing motor gear low-temperature starting test device has the problem that when adding the next kind of lubricating oil, the previous kind of lubricating oil needs to be completely drained, because the flow speed of the lubricating oil will slow down in the low-temperature condition, resulting in slow discharge speed and low test efficiency.

[0004] To solve the above problems, the present application provides a motor gear low-temperature starting test device. SUMMARY

[0005] The present application aims to provide a motor gear low-temperature starting test device, which solves the problem of the existing motor gear low-temperature starting test device that when adding the next kind of lubricating oil, the previous kind of lubricating oil needs to be completely drained, because the flow speed of the lubricating oil will slow down in the low-temperature condition, resulting in slow discharge speed and low test efficiency.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a motor gear low-temperature starting test device, comprising a freezer, a motor arranged on the inner side of the freezer, a first transmission shaft arranged on the output end of the motor, a first gear arranged on the outer side of the first transmission shaft, a gear box arranged on the side of the motor, a second gear arranged on the outer side of the first gear, a second transmission shaft arranged on the inner side of the second gear, a pushing mechanism arranged above the freezer, and a sliding mechanism arranged below the pushing mechanism.

[0007] The sliding mechanism comprises an elastic assembly and a guide assembly, and the elastic assembly is arranged below the guide assembly.

[0008] The pushing mechanism comprises a flow guide pipe communicated below the gear box, a gas cylinder arranged on the output end of the freezer, a gas rod arranged on the output end of the gas cylinder, a first sealing gasket fixedly connected to the end of the gas rod away from the gas cylinder, a discharge port arranged in the flow guide pipe, a first baffle arranged on the inner side of the discharge port, and a first connecting plate fixedly connected to the lower end of the first baffle.

[0009] Preferably, the discharge outlets are equidistantly distributed inside the guide pipe, and the discharge outlets are in interference fit with the first baffle.

[0010] Preferably, the guide assembly comprises a second connecting plate fixedly connected to the outside of the air cylinder, a first guide slot is arranged inside the second connecting plate, a first guide rod is arranged inside the first guide slot, a first hole is arranged inside an upper side of the freezer, a support frame is arranged inside the first hole, a second hole is arranged inside the support frame, a push rod is arranged on the inner side of the second hole, the push rod is in fixed connection with the first guide rod, a bearing cylinder is arranged on the inner side of the upper side of the freezer, a second sealing gasket is arranged on the inner side of the bearing cylinder, a third hole is arranged inside the second sealing gasket, a second baffle is arranged on the inner side of the third hole, and the second baffle is in fixed connection with the bearing cylinder.

[0011] Preferably, the first guide slot is in horizontal straight line shape near one end of the air cylinder, and the first guide slot is in inclined straight line shape away from the one end of the air cylinder.

[0012] Preferably, the second hole is in clearance fit with the push rod, and the push rod is in rectangular parallelepiped shape.

[0013] Preferably, the upper end surface of the second baffle is on the same plane as the upper end surface of the bearing cylinder, the length of the second baffle is less than the length of the bearing cylinder, and the outer side surface of the second baffle is attached to the inner side surface of the third hole.

[0014] Preferably, the inside of the air cylinder is provided with a second groove, the elastic assembly comprises an elastic rubber pad arranged on the inner side of the second groove, a first connecting rod is fixedly connected below the elastic rubber pad, a third baffle is fixedly connected to the lower end of the first connecting rod, a fourth hole is arranged inside the other side of the upper side of the freezer, a second connecting rod is arranged on the inner side of the fourth hole, a fourth baffle is fixedly connected to the upper end outer side of the second connecting rod, the upper side surface of the fourth baffle is attached to the inner side surface of the freezer, a fifth hole is arranged inside the upper end of one side of the gear box, a fifth baffle is arranged on the outer side below the second connecting rod, the upper side surface of the fifth baffle is attached to the inner side surface of the gear box, a sixth baffle is fixedly connected to the lower end of the second connecting rod, a sixth hole is arranged inside the sixth baffle, a first groove is arranged on the inner wall of the middle of the gear box, the sixth baffle is nested on the inner side of the first groove, a second guide slot is arranged inside the other side of the upper end of the gear box, a second guide rod is arranged on the inner side of the second guide slot, the second guide rod is in fixed connection with the sixth baffle, a third connecting plate is slidingly connected to the side away from the motor of the sixth baffle, a spring is fixedly connected to the side away from the motor of the third connecting plate, and the spring is in fixed connection with the gear box.

[0015] Preferably, the fourth hole has a width greater than the width of the second connecting rod, and the fifth hole has a width greater than the width of the second connecting rod.

[0016] Preferably, the lower end of the third baffle plate is inclined on both sides, and the width of the third baffle plate is greater than the width of the second connecting rod.

[0017] Preferably, the inner side vertex of the second guide groove near the motor end is closer to the push rod than the outer side vertex, and the inner side vertex of the second guide groove away from the motor end is farther away from the push rod than the outer side vertex.

[0018] Compared with the prior art, the motor gear low-temperature starting test device has the following beneficial effects:

[0019] The motor gear low-temperature starting test device provided by the application has the following beneficial effects:

[0020] The motor gear low-temperature starting test device provided by the application has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the application;

[0022] Figure 2 It is a schematic diagram of the front view of the freezing box according to the application;

[0023] Figure 3 It is a schematic diagram of the front view of the flow guide pipe according to the application;

[0024] Figure 4 It is a schematic diagram of the appearance structure of the second connecting plate according to the application;

[0025] Figure 5 It is a schematic diagram of the bottom view of the gear box according to the application;

[0026] Figure 6 It is a schematic diagram of the top view of the sixth baffle plate according to the application;

[0027] Figure 7 It is a schematic diagram of the structure of the Figure 3 A in the application;

[0028] Figure 8 It is a schematic diagram of the structure of the Figure 4 B in the application.

[0029] In the figure: 1, freezer; 2, motor; 3, first transmission shaft; 4, first gear; 5, gear box; 10, second gear; 6, second transmission shaft; 7, pushing mechanism; 8, sliding mechanism; 81, elastic assembly; 82, guide assembly; 701, air duct; 702, air cylinder; 703, air rod; 704, first sealing gasket; 705, discharge port; 706, first baffle; 707, first connecting plate; 8201, second connecting plate; 8202, first guide slot; 8203, first guide rod; 8204, first hole; 8205, support frame; 8206, second hole; 8207, push rod; 8208, bearing cylinder; 8210, second sealing gasket; 8209, third hole; 8211, second baffle; 9, second groove; 8101, elastic rubber pad; 8102, first connecting rod; 8103, third baffle; 8104, fourth hole; 8105, second connecting rod; 8106, fourth baffle; 8107, fifth hole; 8108, fifth baffle; 8109, sixth baffle; 8110, sixth hole; 8111, first groove; 8112, second guide slot; 8113, second guide rod; 8114, third connecting plate; 8115, spring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Please refer to Figures 1-8 The present application provides a technical solution: a motor gear low-temperature starting test device, comprising a freezer 1, a motor 2 arranged on the inner side of the freezer 1, a first transmission shaft 3 arranged at the output end of the motor 2, a first gear 4 arranged on the outer side of the first transmission shaft 3, a gear box 5 arranged on one side of the motor 2, a second gear 10 arranged on the outer side of the first gear 4, a second transmission shaft 6 arranged on the inner side of the second gear 10, a pushing mechanism 7 arranged above the freezer 1, and a sliding mechanism 8 arranged below the pushing mechanism 7.

[0032] The sliding mechanism 8 comprises an elastic assembly 81 and a guide assembly 82, and the elastic assembly 81 is arranged below the guide assembly 82.

[0033] The pushing mechanism 7 comprises a guide pipe 701 connected below the gear box 5, the output end of the freezer 1 is provided with a cylinder 702, the output end of the cylinder 702 is provided with a air rod 703, the end of the air rod 703 away from the cylinder 702 is fixedly connected with a first sealing gasket 704, the inside of the guide pipe 701 is provided with a discharge port 705, the inside of the discharge port 705 is provided with a first baffle 706, the discharge ports 705 are equidistantly distributed in the inside of the guide pipe 701, and the cooperation mode of the discharge port 705 and the first baffle 706 is interference fit, so that the first baffle 706 can block the discharge port 705, and the lower end of the first baffle 706 is fixedly connected with a first connecting plate 707.

[0034] The guide assembly 82 comprises a second connecting plate 8201 fixedly connected to the outside of the air rod 703, a first guide groove 8202 is arranged in the inside of the second connecting plate 8201, a first guide rod 8203 is arranged in the inside of the first guide groove 8202, the appearance structure of the end of the first guide groove 8202 close to the cylinder 702 is horizontal straight line, and the appearance structure of the end of the first guide groove 8202 away from the cylinder 702 is inclined straight line, so that when the first guide rod 8203 moves at the horizontal straight line of the first guide groove 8202, the first guide groove 8202 does not move up and down, and when the first guide rod 8203 moves at the inclined straight line of the first guide groove 8202, the first guide groove 8202 moves up and down, a first hole 8204 is arranged in the inside of the upper side of the freezer 1, a support frame 8205 is arranged in the inside of the first hole 8204, a second hole 8206 is arranged in the inside of the support frame 8205, a push rod 8207 is arranged in the inside of the second hole 8206, the cooperation mode of the second hole 8206 and the push rod 8207 is clearance fit, and the appearance structure of the push rod 8207 is cuboid, so that when the push rod 8207 moves in the inside of the second hole 8206, it does not shake or rotate, but only moves up and down, the connection mode of the push rod 8207 and the first guide rod 8203 is fixed connection, a bearing cylinder 8208 is arranged in the inside of the upper side of the freezer 1, a second sealing gasket 8210 is arranged in the inside of the bearing cylinder 8208, a third hole 8209 is arranged in the inside of the second sealing gasket 8210, a second baffle 8211 is arranged in the inside of the third hole 8209, the connection mode of the second baffle 8211 and the bearing cylinder 8208 is fixed connection, the upper end surface of the second baffle 8211 is on the same plane as the upper end surface of the bearing cylinder 8208, the length of the second baffle 8211 is less than the length of the bearing cylinder 8208, and the outside surface of the second baffle 8211 is attached to the inside surface of the third hole 8209, so that when the second baffle 8211 is out of the range of the second baffle 8211, the lubricant above the second sealing gasket 8210 can flow out from the third hole 8209.

[0035] The inside of the air rod 703 is provided with a second groove 9, and the elastic assembly 81 comprises an elastic rubber pad 8101 arranged inside the second groove 9. The lower side of the elastic rubber pad 8101 is fixedly connected with a first connecting rod 8102. The lower end of the first connecting rod 8102 is fixedly connected with a third baffle 8103. The lower end of the third baffle 8103 is uniformly inclined on both sides. The width of the third baffle 8103 is greater than the width of a second connecting rod 8105, so that the third baffle 8103 can move up and down along the track of the second connecting rod 8105. The other side of the upper side of the freezer 1 is internally provided with a fourth hole 8104. The inside of the fourth hole 8104 is provided with the second connecting rod 8105. The outside of the upper end of the second connecting rod 8105 is fixedly connected with a fourth baffle 8106. The upper side of the fourth baffle 8106 is attached to the inside of the freezer 1. The inside of the upper end of one side of the gear box 5 is provided with a fifth hole 8107. The width of the fourth hole 8104 is greater than the width of the second connecting rod 8105. The width of the fifth hole 8107 is greater than the width of the second connecting rod 8105, so that the second connecting rod 8105 can move forward, backward, left and right inside the fourth hole 8104 and the fifth hole 8107. The outside of the lower side of the second connecting rod 8105 is provided with a fifth baffle 8108. The upper side of the fifth baffle 8108 is attached to the inside of the gear box 5. The lower end of the second connecting rod 8105 is fixedly connected with a sixth baffle 8109. The inside of the sixth baffle 8109 is provided with a sixth hole 8110. The inside wall of the middle of the gear box 5 is provided with a first groove 8111. The sixth baffle 8109 is nested inside the first groove 8111. The inside of the other side of the upper end of the gear box 5 is provided with a second guide groove 8112. The inside of the second guide groove 8112 is provided with a second guide rod 8113. The second guide rod 8113 is fixedly connected with the sixth baffle 8109. The side, away from the motor 2, of the sixth baffle 8109 is slidably connected with a third connecting plate 8114. The side, away from the motor 2, of the third connecting plate 8114 is fixedly connected with a spring 8115. The spring 8115 is fixedly connected with the gear box 5. The inside vertex of the second guide groove 8112, close to the motor 2, is closer to the push rod 8207 than the outside vertex. The inside vertex of the second guide groove 8112, away from the motor 2, is farther from the push rod 8207 than the outside vertex. When the second guide rod 8113 moves back to the side, close to the motor 2, of the second guide groove 8112, the second guide rod 8113 can move to the back side of the second guide groove 8112. When the second guide rod 8113 moves back to the side, away from the motor 2, of the second guide groove 8112, the second guide rod 8113 can move to the front side of the second guide groove 8112.

[0036] When the lubricating oil inside the gear box 5 needs to be replaced, the flow performance of the lubricating oil is poor in the frozen state, and the lubricating oil needs to be accelerated to flow out. The specific operation is as follows:

[0037] The starting cylinder 702 drives the air rod 703 and the first sealing pad 704 to move to the left side, at this time the air rod 703 drives the elastic rubber pad 8101 and the first connecting rod 8102 to move to the left side, drives the third baffle 8103 to move to the left side, the third baffle 8103 is in contact with the second connecting rod 8105, because the elastic rubber pad 8101 has a certain elasticity, so that the elastic rubber pad 8101 will not immediately move to the inside of the second groove 9 due to the contact between the third baffle 8103 and the second connecting rod 8105, drives the sixth baffle 8109 to move to the left side, and then drives the second guide rod 8113 to move to the left side, so that the second guide rod 8113 moves forward along the track of the second guide groove 8112, so that the sixth hole 8110 moves forward and overlaps with the flow guide pipe 701, under the pulling of the air rod 703 driving the first sealing pad 704, negative pressure is generated in the inside of the flow guide pipe 701, so that the lubricating oil in the gear box 5 can flow out faster.

[0038] When the previous lubricating oil is being experimented, the next lubricating oil can be cooled, and the specific operation is as follows:

[0039] In the previous lubricating oil experiment, the next lubricating oil is poured into the inside of the bearing cylinder 8208, so that the lubricating oil is blocked by the second sealing pad 8210 and cooled by the freezer 1, and after the gear box 5 flows out, the air rod 703 is started again to the left side. Because the appearance structure of the first guide groove 8202 close to one end of the air cylinder 702 is a horizontal straight line, and the appearance structure of the first guide groove 8202 away from one end of the air cylinder 702 is an inclined straight line, the first guide rod 8203 will not move up and down when the first guide rod 8203 starts to move. When the first guide rod 8203 moves in the inclined position of the first guide groove 8202, the first guide rod 8203 will move downward. When the first guide rod 8203 moves from the horizontal straight line of the first guide groove 8202 to the inclined straight line, the third baffle plate 8103 drives the second connecting rod 8105 and the sixth baffle plate 8109 and the second guide rod 8113 to move to the leftmost end of the second guide groove 8112. The second guide rod 8113 cannot move again, so that the third baffle plate 8103 moves upward along its inclined edge, so that the third baffle plate 8103 loses control of the second connecting rod 8105, so that the spring 8115 drives the third connecting plate 8114 and the sixth baffle plate 8109 to the right side. The second guide rod 8113 moves to the back side of the second guide groove 8112, so that the sixth baffle plate 8109 and the sixth hole 8110 move to the back side, so that the sixth hole 8110 moves to the inside of the first recess 8111, completing the sealing of the gear box 5. When the first guide rod 8203 moves downward, it drives the second sealing pad 8210 to move downward, so that the third hole 8209 is out of the control range of the second baffle plate 8211. The next lubricating oil can flow into the inside of the gear box 5 from the third hole 8209, and the next lubricating oil can be cooled in advance and automatically enter the inside of the gear box 5.

[0040] When the next lubricating oil can flow into the inside of the gear box 5 from the third hole 8209, because the air rod 703 and the first sealing pad 704 move to the left side, the air in the gear box 5 is extracted, thereby generating a certain negative pressure in the inside of the gear box 5. When the third hole 8209 flows into the inside of the gear box 5, the negative pressure can accelerate the cooling of the lubricating oil to enter the inside of the gear box 5, thereby improving the experimental efficiency.

[0041] The relational terms merely used to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between or among these entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0042] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous modifications and changes can be made to the embodiments without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A low-temperature start-up testing device for motor gears, comprising a freezer (1), a motor (2) disposed inside the freezer (1), a first drive shaft (3) disposed at the output end of the motor (2), a first gear (4) disposed outside the first drive shaft (3), a gearbox (5) disposed on one side of the motor (2), a second gear (10) disposed outside the first gear (4), and a second drive shaft (6) disposed inside the second gear (10), characterized in that: The upper portion of the freezer (1) is provided with a pushing mechanism (7), and the lower portion of the pushing mechanism (7) is provided with a sliding mechanism (8). The sliding mechanism (8) comprises an elastic assembly (81) and a guide assembly (82), and the elastic assembly (81) is arranged below the guide assembly (82). The pushing mechanism (7) comprises a flow guide pipe (701) communicated below the gear box (5), the output end of the freezer (1) is provided with a gas cylinder (702), the output end of the gas cylinder (702) is provided with a gas rod (703), the end of the gas rod (703) away from the gas cylinder (702) is fixedly connected with a first sealing gasket (704), the inside of the flow guide pipe (701) is provided with a discharge port (705), the inside of the discharge port (705) is provided with a first baffle (706), and the lower end of the first baffle (706) is fixedly connected with a first connecting plate (707).

2. The motor gear low temperature start test device of claim 1, wherein: The discharge ports (705) are equidistantly distributed in the inside of the flow guide pipe (701), and the cooperation mode of the discharge ports (705) and the first baffles (706) is an interference fit.

3. The motor and gear low temperature start-up test apparatus of claim 1, wherein: The guide assembly (82) comprises a second connecting plate (8201) fixedly connected to the outside of the gas rod (703), a first guide groove (8202) arranged in the inside of the second connecting plate (8201), a first guide rod (8203) arranged in the inside of the first guide groove (8202), a first hole (8204) arranged in the inside of the upper portion of the freezer (1), a support frame (8205) arranged in the inside of the first hole (8204), a second hole (8206) arranged in the inside of the support frame (8205), a push rod (8207) arranged on the inside of the second hole (8206), the push rod (8207) being fixedly connected with the first guide rod (8203), a bearing cylinder (8208) arranged on the inside of the upper portion of the freezer (1), a second sealing gasket (8210) arranged on the inside of the bearing cylinder (8208), a third hole (8209) arranged in the inside of the second sealing gasket (8210), a second baffle (8211) arranged on the inside of the third hole (8209), and the second baffle (8211) being fixedly connected with the bearing cylinder (8208).

4. A motor and gear low temperature start test apparatus as set forth in claim 3 wherein: The appearance structure of the first guide groove (8202) near the end of the gas cylinder (702) is a horizontal straight line, and the appearance structure of the first guide groove (8202) away from the end of the gas cylinder (702) is an inclined straight line.

5. A low temperature start testing device for a motor gear as defined in claim 3, wherein: The cooperation mode of the second hole (8206) and the push rod (8207) is a clearance fit, and the appearance structure of the push rod (8207) is a cuboid.

6. A motor gear low temperature start test device according to claim 3, characterized in that: The upper end face of the second baffle (8211) is on the same plane as the upper end face of the bearing cylinder (8208), the length of the second baffle (8211) is less than the length of the bearing cylinder (8208), and the outside face of the second baffle (8211) is attached to the inside face of the third hole (8209).

7. The motor and gear low temperature start-up test apparatus of claim 1, wherein: The inside of the air rod (703) is provided with a second groove (9), the elastic component (81) comprises an elastic rubber pad (8101) provided inside the second groove (9), the lower side of the elastic rubber pad (8101) is fixedly connected with a first connecting rod (8102), the lower end of the first connecting rod (8102) is fixedly connected with a third baffle (8103), the other side of the upper side of the freezer (1) is internally provided with a fourth hole (8104), the inside of the fourth hole (8104) is provided with a second connecting rod (8105), the upper end of the outside of the second connecting rod (8105) is fixedly connected with a fourth baffle (8106), the upper side of the fourth baffle (8106) is attached to the inner side of the freezer (1), the inside of one side of the upper end of the gear box (5) is provided with a fifth hole (8107), the lower side of the outside of the second connecting rod (8105) is provided with a fifth baffle (8108), the upper side of the fifth baffle (8108) is attached to the inner side of the gear box (5), the lower end of the second connecting rod (8105) is fixedly connected with a sixth baffle (8109), the inside of the sixth baffle (8109) is provided with a sixth hole (8110), the first groove (8111) is arranged on the middle inner wall of the gear box (5), the sixth baffle (8109) is nested on the inside of the first groove (8111), the inside of the other side of the upper end of the gear box (5) is provided with a second guide slot (8112), the inside of the second guide slot (8112) is provided with a second guide rod (8113), the second guide rod (8113) and the sixth baffle (8109) are fixedly connected, the side, away from the motor (2), of the sixth baffle (8109) is slidingly connected with a third connecting plate (8114), the side, away from the motor (2), of the third connecting plate (8114) is fixedly connected with a spring (8115), and the spring (8115) and the gear box (5) are fixedly connected.

8. A motor and gear low temperature start test apparatus as set forth in claim 7 wherein: The fourth hole (8104) is wider than the second connecting rod (8105), and the fifth hole (8107) is wider than the second connecting rod (8105).

9. The motor and gear low temperature start-up test apparatus of claim 7, wherein: The lower end of the third baffle (8103) is inclined on both sides, and the width of the third baffle (8103) is greater than that of the second connecting rod (8105).

10. The motor and gear low temperature start-up test apparatus of claim 7, wherein: The inner side vertex of the second guide slot (8112) near the motor (2) is closer to the push rod (8207) than the outer side vertex, and the inner side vertex of the second guide slot (8112) away from the motor (2) is farther away from the push rod (8207) than the outer side vertex.

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