Horizontal lifting test bench

Abstract

A horizontal lifting test bench comprises a seat plate, a first mounting seat and a second mounting seat are assembled on the seat plate, the first mounting seat is used for assembling an eccentric gear motor, the eccentric gear motor is provided with an eccentric output shaft, and a loading seat is assembled on the second mounting seat through a linear sliding rail. And the eccentric output shaft is connected with the loading seat through a connecting rod. An electric cylinder is further assembled on the second mounting seat, and the output end of the electric cylinder is located on the sliding path of the loading seat and faces the side, away from the connecting rod, of the loading seat. Compared with the prior art, the utility model has the following beneficial effects: load adjustment is realized by using the pushing cylinder, the adjustment is convenient and fast, and the test efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting test machines for reducer detection, and particularly relates to a horizontal lifting test bench. Background Technique

[0002] In modern industrial production and product R & D, conducting comprehensive performance tests and verifications on various mechanical equipment is the cornerstone to ensure the excellent quality of products and operation safety. Especially in cutting-edge fields such as the automotive industry, aerospace engineering, and heavy equipment manufacturing, as a core component of the power transmission system, the performance of the reducer directly affects the reliability and operating efficiency of the entire mechanical system. In view of this, the vertical lifting test machine, as an advanced detection device, is widely adopted to accurately evaluate the dynamic performance parameters of the reducer, covering core evaluation indicators such as gradual torque response, radial load bearing capacity, and ultimate lifting height.

[0003] However, the lifting test machines currently widely used in the market for detecting reducers or reduction motors still generally rely on traditional weight adjustment mechanisms in load control technology, that is, manually or semi - manually increasing or decreasing the counterweight modules on the loading device to simulate diverse actual working load conditions. Although this configuration is practical, it exposes several key defects in actual applications:

[0004] 1. Precision limitation: Due to excessive reliance on manual operation for counterweight adjustment, it is difficult to achieve micron - level precise control of the loading force. Especially when performing dynamic load tests that require extremely high precision and subtle force changes, the lack of detection precision is particularly obvious, which directly limits the accuracy and reliability of the performance evaluation of the reducer.

[0005] 2. Low efficiency: Whenever it is necessary to change the test conditions, the ongoing experimental process must be aborted, and physical counterweights need to be increased or decreased. This series of actions is not only complicated in procedure and time - consuming, but also seriously disrupts the continuity and efficiency of the test process, and is not conducive to the rapid detection of large - scale samples and the immediate feedback of test conclusions.

[0006] 3. Lack of operation complexity and flexibility: Manually adjusting the loading weight not only increases the workload of the operator and prolongs the experimental preparation period, but also significantly reduces the adjustability and response speed of the experiment. For those complex detection environments that frequently require adjusting test parameters according to different models or specifications of reducers, this shortcoming of the existing technology is particularly prominent, restricting the efficient execution of the test and the accuracy of the results.

[0007] In summary, the limitations of the current vertical lifting test machine in load control, especially the traditional method of relying on manually increasing or decreasing counterweights, have become an important bottleneck restricting the improvement of the performance evaluation and verification efficiency of high - performance reducers, and urgent technological innovation is needed to break through this situation. Utility Model Content

[0008] In order to solve the above technical problems, the utility model solves them through the following technical solutions.

[0009] A horizontal lifting test bench comprises a seat plate, a first mounting seat and a second mounting seat are mounted on the seat plate, the first mounting seat is used to mount an eccentric reduction motor, the eccentric reduction motor has an eccentric output shaft, a loading seat is mounted on the second mounting seat via a linear slide rail, the eccentric output shaft and the loading seat are connected via a connecting rod. An electric cylinder is also mounted on the second mounting seat, the output end of the electric cylinder is located on the sliding path of the loading seat and faces the side of the loading seat away from the connecting rod.

[0010] Preferably, the connecting rod is provided with an assembly groove, and a through assembly hole with a smaller diameter than the assembly groove is provided at the bottom center of the assembly groove, and the eccentric output shaft extends into the assembly groove through the assembly hole. The eccentric output shaft is provided with a bearing through a sleeve, and a stop cover is provided at the end of the eccentric output shaft, and the sleeve and the bearing are restricted and fixed between the stop cover and the bottom of the assembly groove. This design can effectively reduce shock and wear, thereby extending the service life of the equipment and ensuring high accuracy of the test results.

[0011] Preferably, the eccentric output shaft is also equipped with a snap ring, which is located between the stop cover and the bearing. The additional snap ring can effectively prevent the sleeve from moving outward, further strengthen the connection between the bearing and the stop cover, and improve the dynamic stability of the entire transmission system, especially under long-term continuous operation or high-load test conditions, the equipment performs more reliably.

[0012] Preferably, the output end of the electric cylinder is equipped with a connection plate, and the connection plate is equipped with a pressure sensor. This design not only realizes the precise regulation of the loading force, but also provides the user with instant loading force feedback information, enhances the real-time monitoring and analysis capabilities of the test data, and is crucial to improving research efficiency and accuracy.

[0013] Preferably, a plurality of T-slots are provided on the working surface of the seat plate, and the T-slots are used to assemble the first mounting seat and the second mounting seat. The use of T-slots in combination with fasteners not only simplifies the assembly process of the device, but also ensures the precise alignment of all components, thereby improving the stability and adaptability of the overall device.

[0014] Preferably, the T-shaped groove includes a first T-shaped groove and a second T-shaped groove, and the first T-shaped groove and the second T-shaped groove are vertically arranged; the first mounting seat is fixed on the seat plate by assembling with the first T-shaped groove through a fastener, and the second mounting seat is fixed on the seat plate by assembling with the second T-shaped groove through a fastener. This provides a flexible and stable mounting solution for the first mounting seat and the second mounting seat, enabling the device to be applicable to the tests of different models of speed reducers.

[0015] Compared with the prior art, the utility model has the following beneficial effects: The load adjustment is realized by using a pushing cylinder, which is convenient and fast, greatly improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a perspective view of a horizontal lifting test bench.

[0017] Figure 2 FIG. is a top view of a horizontal lifting test bench.

[0018] Figure 3 FIG. is an exploded view of the structure at the connection between the eccentric reduction motor and the connecting rod.

[0019] Figure 4 FIG. is a partial cross-sectional view of the connection between the eccentric reduction motor and the connecting rod.

[0020] The following are the label descriptions in the drawings of the specification:

[0021] 1. Seat plate; 2. First mounting seat; 3. Second mounting seat; 4. Eccentric reduction motor; 5. Loading seat; 6. Connecting rod; 7. Electric cylinder; 8. Linear slide rail; 9. Eccentric output shaft; 10. Bush; 11. Bearing; 12. Retaining cap; 13. Snap ring; 14. Pressure sensor; 15. First T-shaped groove; 16. Second T-shaped groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further described in detail below in conjunction with the drawings and the specific embodiments.

[0023] In the following embodiments, the same or similar reference numerals represent the same or similar components or components with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0024] In the description of the present utility model, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms: first, second, etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, unless otherwise clearly specified and limited, the terms: installation, connection, connection, etc. should be understood in a broad sense, and those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific circumstances.

[0025] Referring to Figures 1 to 4 , a horizontal lifting test bench, comprising a seat plate 1, on which a first mounting seat 2 and a second mounting seat 3 are assembled. The first mounting seat 2 is used for assembling an eccentric reduction motor 4, which has an eccentric output shaft 9. The second mounting seat 3 is equipped with a loading seat 5 through a linear slide rail 8, and the eccentric output shaft 9 and the loading seat 5 are connected by a connecting rod 6. An electric cylinder 7 is also assembled on the second mounting seat 3, and the output end of the electric cylinder 7 is located on the sliding path of the loading seat 5 and faces the side of the loading seat 5 away from the connecting rod 6. The present utility model uses a push cylinder to achieve load adjustment, which is convenient and fast, greatly improving the test efficiency.

[0026] To ensure the stability and reliability of the connection between the connecting rod 6 and the eccentric reduction motor 4, an assembly groove is provided on the connecting rod 6, and a through assembly hole with a diameter smaller than that of the assembly groove is provided at the center of the bottom of the assembly groove. The eccentric output shaft 9 extends into the assembly groove through the assembly hole. A bearing 11 is assembled on the eccentric output shaft 9 through a shaft sleeve 10, and a retaining cover 12 is assembled at the end of the eccentric output shaft 9. The shaft sleeve 10 and the bearing 11 are restricted and fixed between the retaining cover 12 and the bottom of the assembly groove. This design can effectively reduce vibration and wear, thereby extending the service life of the equipment and ensuring the high precision of the test results. A snap ring 13 is also assembled on the eccentric output shaft 9, and the snap ring 13 is located between the retaining cover 12 and the bearing 11. The additional snap ring 13 can effectively prevent the shaft sleeve 10 from moving outwards, further strengthening the connection between the bearing 11 and the retaining cover 12, and improving the dynamic stability of the entire transmission system. Especially under long-term continuous operation or high-load test conditions, the equipment performs more reliably.

[0027] Considering the flexibility under different test requirements, the electric cylinder 7 is selected as a direct-connected servo electric cylinder 7, which can accurately control the thrust, and then change the load of the loading seat 5 to meet diverse test requirements.

[0028] Furthermore, a connection plate is assembled at the output end of the electric cylinder 7, and a pressure sensor 14 is assembled on the connection plate. This design not only achieves precise control of the loading force but also provides users with immediate feedback information on the loading force, enhancing the real-time monitoring and analysis capabilities of test data, which is crucial for improving research efficiency and accuracy. To enhance the safety and operational simplicity of the system, the present utility model can also integrate a position sensor on the loading seat 5, which can monitor the position change of the loading seat 5 in real time to achieve precise control and recording of the displacement of the test piece. This design not only improves the automation level during the test but also can immediately trigger the safety protection mechanism in case of anomalies, avoiding equipment damage or distortion of test data and ensuring the stability and safety of the experimental environment.

[0029] In addition, to facilitate the adjustment of the first mounting seat 2 and the second mounting seat 3, a plurality of T-shaped grooves are provided on the working surface of the seat plate 1, and the T-shaped grooves are used to assemble the first mounting seat 2 and the second mounting seat 3. By using the T-shaped grooves in combination with fasteners, not only the assembly process of the equipment is simplified, but also the precise alignment of all components is ensured, improving the stability and adaptability of the overall device. Specifically, the T-shaped grooves include a first T-shaped groove 15 and a second T-shaped groove 16, and the first T-shaped groove 15 and the second T-shaped groove 16 are vertically arranged; the first mounting seat 2 is fixed on the seat plate 1 through the assembly of fasteners with the first T-shaped groove 15, and the second mounting seat is fixed on the seat plate 1 through the assembly of fasteners with the second T-shaped groove 16. A flexible and stable mounting solution is provided for the first mounting seat 2 and the second mounting seat 3, enabling the device to be applicable to tests of different models of speed reducers.

[0030] The protection scope of the present utility model includes but is not limited to the above embodiments. The protection scope of the present utility model is subject to the claims, and any substitutions, deformations, and improvements that are easily conceivable by those skilled in the art to this technology fall within the protection scope of the present utility model.

Claims

1. A horizontal lifting test bench, characterized in that: The invention comprises a seat plate (1), wherein a first mounting seat (2) and a second mounting seat (3) are mounted on the seat plate (1), wherein the first mounting seat (2) is used to mount an eccentric reduction motor (4), wherein the eccentric reduction motor (4) has an eccentric output shaft (9), and wherein a loading seat (5) is mounted on the second mounting seat (3) via a linear guide rail (8), wherein the eccentric output shaft (9) and the loading seat (5) are connected via a connecting rod (6); The second mounting seat (3) is also equipped with an electric cylinder (7), the output end of the electric cylinder (7) being located on the sliding path of the loading seat (5) and facing the side of the loading seat (5) away from the connecting rod (6).

2. A horizontal lifting test bench according to claim 1, characterized in that: The connecting rod (6) is provided with an assembly groove, the bottom center of the assembly groove is provided with a through assembly hole with a smaller hole diameter than the assembly groove, and the eccentric output shaft (9) extends into the assembly groove through the assembly hole; A bearing (11) is mounted on the eccentric output shaft (9) via a shaft sleeve (10); a stop cover (12) is mounted on the end of the eccentric output shaft (9); and the shaft sleeve (10) and the bearing (11) are restricted and fixed between the stop cover (12) and the bottom of the mounting groove.

3. A horizontal lifting test bench according to claim 2, characterized in that: The eccentric output shaft (9) is also equipped with a snap ring (13), and the snap ring (13) is located between the stop cover (12) and the bearing (11).

4. A horizontal lifting test bench according to claim 1, characterized in that: The output end of the electric cylinder (7) is equipped with a connection disk, and a pressure sensor (14) is installed on the connection disk.

5. The horizontal lifting test bench according to claim 1, characterized in that: A plurality of T-shaped slots are provided on the working surface of the seat plate (1), and the T-shaped slots are used for assembling the first mounting seat (2) and the second mounting seat (3).

6. A horizontal lifting test bench according to claim 5, characterized in that: The T-slot comprises a first T-slot (15) and a second T-slot (16), wherein the first T-slot (15) and the second T-slot (16) are arranged vertically; the first mounting seat (2) is fixed to the seat plate (1) by assembling the first T-slot (15) with a fastener, and the second mounting seat (3) is fixed to the seat plate (1) by assembling the second T-slot (16) with a fastener.

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