A test bench

Abstract

The utility model discloses a test bench, including a base, an arm seat is fixedly connected to one side of the top of the base, a support arm is fixedly connected to one side of the arm seat, a main seat is fixedly connected to the side of the top of the base away from the arm seat, a fixed column is fixedly connected to the top of the main seat, a sleeve is fixedly connected to the side of the fixed column close to the arm seat, a rod hole is provided on the periphery of the sleeve, an embedding hole is provided on the side of the sleeve away from the fixed column, a lifting sleeve is fixedly connected to the top of the base, a rotating shaft is sleeved on the upper part of the support arm, a hydraulic arm is sleeved on one end of the rotating shaft away from the support arm, and a fixed rod is sleeved on the lower end interface of the hydraulic arm. The utility model designs a baffle, a pressure rod and a sleeve block at the output end of the gearbox, and simulates the state of the gearbox under the "load" state by increasing the friction between the baffle and the sleeve block, and understands the simulated data of the speed change under various load states from the measured data.

Description

Technical Field

[0001] The utility model relates to the technical field of gearbox experiments, in particular to a test bench. Background Art

[0002] Nowadays, a large number of devices are equipped with drive wheels to drive the devices to move or operate. Gearboxes have also come into being in the context of the invention and application of many drive devices. The gearbox's operating speed, output power, stability, efficiency, life, speed change capability and many other performances are all related to the load it carries.

[0003] When testing its performance, the traditional method is to make a dedicated load platform with the same weight as the designed load. Since the test platform and the tested drive device are always in motion during the test, it is difficult to continuously observe and measure, accurately examine its load drive characteristics, or adjust the experimental parameters in real time. If the test time is long, or the drive load is large, or it is necessary to accurately examine the acceleration and deceleration capabilities and driving capabilities of the drive device, traditional methods will show great difficulties. Other test benches of the same type mostly test the no-load running data of the gearbox, and the results obtained do not have accurate and reliable practical significance. In addition, many test benches use traditional fuel engines, which are difficult to install and operate, and it is not easy to control their output power and keep them running at a stable power. Utility Model Content

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a test bench that can simulate the simulation data of a gearbox under various "load" states.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laboratory table, comprising a base, an arm seat is fixedly connected to one side of the top of the base, a support arm is fixedly connected to one side of the arm seat, a main seat is fixedly connected to the top of the base away from the arm seat, a fixed column is fixedly connected to the top of the main seat, a sleeve is fixedly connected to the side of the fixed column close to the arm seat, a support rod hole is provided on the periphery of the sleeve, an embedding hole is provided on the side of the sleeve away from the fixed column, a lifting sleeve is fixedly connected to the top of the base, a rotating shaft is sleeved on the upper part of the support arm, and the lifting sleeve provides power so that the storage platform can move up and down.

[0006] As a preferred solution, a hydraulic arm is sleeved on one end of the rotating shaft away from the supporting arm, a fixing rod is sleeved on the lower end interface of the hydraulic arm, a driving motor is fixedly connected to the bottom of the fixing rod, a transmission gear is sleeved on the output end of the driving motor, an input end gear is meshed on the periphery of the transmission gear, a gearbox is provided on one side of the input end gear, and an output end gear is provided on the side of the gearbox away from the input end gear, and the driving motor replaces the fuel engine to provide power to the gearbox.

[0007] As a preferred embodiment, a fastening sleeve is sleeved on the outer periphery of the sleeve, a rolling groove is provided in the inner cavity of the fastening sleeve, a lower pressure arm is fixedly connected to one side of the outer periphery of the fastening sleeve, an end of the lower pressure arm away from the fastening sleeve is fixedly connected to a handrail, a gripping sleeve is sleeved on the outer periphery of the handrail, and the gripping sleeve can be rotated around the handrail to facilitate the operator to grip.

[0008] As a preferred solution, the inner cavity of the lifting sleeve is sleeved with a lifting column, the bottom of the lifting column is fixedly connected with a clamping ring, the top of the lifting column is fixedly connected with a storage platform, and the clamping ring is used to limit the lifting height of the lifting column.

[0009] As a preferred solution, a pressure rod is sleeved on the inner wall of the support rod hole, a blocking plate is fixedly connected to the pressure rod, and a roller is sleeved on the end of the pressure rod away from the blocking plate. The blocking plate rubs against the sleeve block to increase the resistance to the rotation of the sleeve block.

[0010] As a preferred solution, the inner wall of the barrier is slidably connected with a sleeve block, one side of the sleeve block is provided with a tooth hole, the tooth hole is sleeved with the output end gear, and can be taken out and replaced to adapt to gears of different specifications.

[0011] Compared with the prior art, the utility model provides a test bench with the following beneficial effects:

[0012] 1. The utility model replaces the traditional experimental power source from the fuel engine with a drive motor. Compared with the fuel motor which is difficult to install and control, the drive motor reduces the use cost and operation difficulty of the test bench while ensuring the reliability of the power source.

[0013] 2. The utility model designs a baffle, a pressure rod and a sleeve block at the output end of the gearbox, and simulates the state of the gearbox under a "load" state by increasing the friction between the baffle and the sleeve block, and understands the simulated data of the speed change under various load states from the measured data. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the sleeve structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the fastening sleeve of the utility model;

[0017] Figure 4 This is a schematic diagram of the fastening sleeve structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the support arm structure of the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the storage table of the utility model;

[0020] Figure 7 This is a schematic diagram of the gearbox structure of the utility model;

[0021] Figure 8 This is a schematic diagram of the barrier structure of the utility model.

[0022] In the figure: 1. base; 2. arm base; 3. support arm; 4. main base; 5. fixed column; 6. sleeve; 7. embedded hole; 8. support rod hole; 9. lifting sleeve; 10. hydraulic arm; 11. fixed rod; 12. drive motor; 13. transmission gear; 14. gearbox; 15. lower pressure arm; 16. gripping sleeve; 17. fastening sleeve; 18. rolling groove; 19. handrail; 20. storage platform; 21. lifting column; 22. retaining ring; 23. input end gear; 24. blocking plate; 25. tooth hole; 26. pressure rod; 27. sleeve block; 28. roller; 29. ​​output end gear; 30. rotating shaft. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0024] See also Figure 1 Figure 2 Figure 7 Figure 8To illustrate the present embodiment 1, a laboratory table includes a base 1, an arm base 2 is fixedly connected to one side of the top of the base 1, a support arm 3 is fixedly connected to one side of the arm base 2, a main base 4 is fixedly connected to the top of the base 1 away from the arm base 2, a fixed column 5 is fixedly connected to the top of the main base 4, a sleeve 6 is fixedly connected to the side of the fixed column 5 close to the arm base 2, a plurality of groups of rod holes 8 are provided on the periphery of the sleeve 6, an embedding hole 7 is provided on the side of the sleeve 6 away from the fixed column 5, the embedding hole 7 is communicated with the rod hole 8, a lifting sleeve 9 is fixedly connected to the top of the base 1, a rotating shaft 30 is sleeved on the upper part of the support arm 3, and the rotating shaft 30 is away from the support arm 3. One end of the support arm 3 is sleeved with a hydraulic arm 10, and the lower end interface of the hydraulic arm 10 is sleeved with a fixed rod 11. The hydraulic arm 10 and the fixed rod 11 can be freely adjusted, and the damping value thereof is large enough. The bottom of the fixed rod 11 is fixedly connected with a driving motor 12, and the driving motor 12 provides a simple driving force for the device. The output end of the driving motor 12 is sleeved with a transmission gear 13, and the periphery of the transmission gear 13 is meshed with an input end gear 23. A gearbox 14 is provided on one side of the input end gear 23, and an output end gear 29 is provided on the side of the gearbox 14 away from the input end gear 23. The output end gear 29 is sleeved with a sleeve block 27;

[0025] In this embodiment, the base 1 and the main seat 4 play a fixing role, giving the test bench sufficient stability. The drive motor 12 replaces the traditional fuel motor, which not only reduces the difficulty of operating the test bench, but also reduces the operating and use costs of the test bench. The drive motor 12 is fixed by a fixing rod 11, so that the position of the drive motor 12 can be easily adjusted to adapt to gearboxes 14 of various models and sizes. Example

[0026] See also Figure 3-Figure 6 To illustrate the present embodiment 2, the outer periphery of the sleeve 6 is sleeved with a fastening sleeve 17, and the inner cavity of the fastening sleeve 17 is provided with a rolling groove 18, and the rolling groove 18 adopts a unique design of different thicknesses, and a lower pressure arm 15 is fixedly connected to one side of the outer periphery of the fastening sleeve 17, and a handrail 19 is fixedly connected to the end of the lower pressure arm 15 away from the fastening sleeve 17, and a gripping sleeve 16 is sleeved on the outer periphery of the handrail 19, and the gripping position during operation is the gripping sleeve 16, and a lifting column 21 is sleeved on the inner cavity of the lifting sleeve 9, and a clamping ring 22 is fixedly connected to the bottom of the lifting column 21, and the clamping ring 22 is used to limit the lifting height of the lifting column 21 to prevent it from lifting excessively and detaching from the top of the lifting column 21.

[0027] In this embodiment, the tightening sleeve 17 serves to increase the pressure of the barrier 24 on the sleeve block 27. The greater the pressure, the greater the friction between the barrier 24 and the sleeve block 27, and thus the greater the rotational resistance of the output end gear 29. Example

[0028] See also Figure 8To illustrate the present embodiment 3, a pressure rod 26 is sleeved on the inner wall of the rod hole 8, a blocking sheet 24 is fixedly connected to the pressure rod 26, the inner wall of the blocking sheet 24 is tightly fitted with the outer wall of the sleeve block 27, a roller 28 is sleeved on the end of the pressure rod 26 away from the blocking sheet 24, the inner wall of the blocking sheet 24 is slidably connected to the sleeve block 27, and a tooth hole 25 is opened on one side of the sleeve block 27;

[0029] In this embodiment, the roller 28 rotates along the rolling groove 18 to increase the pressure of the pressure rod 26 on the barrier 24. The pressure increases the sliding friction resistance between the sleeve block 27 and the barrier 24, thereby achieving the effect of simulating a load-bearing working environment.

[0030] The working principle of the utility model is:

[0031] When in use, the gearbox 14 to be tested is placed on the storage table 20, and the gearbox 14 is adjusted to a suitable height by controlling the lifting sleeve 9 under the storage table 20, and then the tooth hole 25 on the sleeve block 27 is sleeved on the output end gear 29 of the gearbox 14, and then the sleeve block 27 is horizontally placed in the embedded hole 7, and then the hydraulic arm 10 is adjusted to mesh the transmission gear 13 of the drive motor 12 with the input end gear 23 of the gearbox 14, and then the drive motor 12 is started;

[0032] After the drive motor 12 is started, the operator holds the gripping sleeve 16 and then presses down the pressing arm 15. At this time, the fastening sleeve 17 rotates around the sleeve 6, and the roller 28 rolls along the rolling groove 18 opened in the fastening sleeve 17. The more the pressing arm 15 is pressed down, the farther the roller 28 rolls along the rolling groove 18, the greater the pressure exerted by the pressure rod 26 on the blocking plate 24, and the greater the friction between the blocking plate 24 and the sleeve block 27. Therefore, the output end gear 29 is subjected to greater rotational resistance, thereby simulating various aspects of data of the gearbox 14 under load.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laboratory bench, comprising a base (1), characterized in that: An arm seat (2) is fixedly connected to one side of the top of the base (1), a support arm (3) is fixedly connected to one side of the arm seat (2), a main seat (4) is fixedly connected to the top of the base (1) away from the arm seat (2), a fixing column (5) is fixedly connected to the top of the main seat (4), a sleeve (6) is fixedly connected to the side of the fixing column (5) close to the arm seat (2), a support rod hole (8) is provided on the periphery of the sleeve (6), an embedding hole (7) is provided on the side of the sleeve (6) away from the fixing column (5), a lifting sleeve (9) is fixedly connected to the top of the base (1), and a rotating shaft (30) is sleeved on the upper part of the support arm (3).

2. A test bench according to claim 1, characterized in that: The end of the rotating shaft (30) away from the support arm (3) is sleeved with a hydraulic arm (10), the lower end interface of the hydraulic arm (10) is sleeved with a fixing rod (11), the bottom of the fixing rod (11) is fixedly connected to a driving motor (12), the output end of the driving motor (12) is sleeved with a transmission gear (13), the periphery of the transmission gear (13) is meshed with an input end gear (23), a gearbox (14) is provided on one side of the input end gear (23), and an output end gear (29) is provided on the side of the gearbox (14) away from the input end gear (23).

3. A test bench according to claim 1, characterized in that: The outer periphery of the sleeve (6) is sleeved with a fastening sleeve (17), the inner cavity of the fastening sleeve (17) is provided with a rolling groove (18), one side of the outer periphery of the fastening sleeve (17) is fixedly connected to a lower pressure arm (15), one end of the lower pressure arm (15) away from the fastening sleeve (17) is fixedly connected to a handrail (19), and the outer periphery of the handrail (19) is sleeved with a gripping sleeve (16).

4. A test bench according to claim 1, characterized in that: The inner cavity of the lifting sleeve (9) is sleeved with a lifting column (21), the bottom of the lifting column (21) is fixedly connected with a clamping ring (22), and the top of the lifting column (21) is fixedly connected with a storage platform (20).

5. A test bench according to claim 1, characterized in that: A pressure rod (26) is sleeved on the inner wall of the support rod hole (8), a blocking plate (24) is fixedly connected to the pressure rod (26), and a roller (28) is sleeved on one end of the pressure rod (26) away from the blocking plate (24).

6. A test bench according to claim 5, characterized in that: The inner wall of the blocking plate (24) is slidably connected to a sleeve block (27), and a tooth hole (25) is formed on one side of the sleeve block (27).

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