Jack full-stroke no-load test equipment

Abstract

The utility model discloses jack full-stroke no-load test equipment, which comprises a working table, a plurality of upright posts and a plurality of cylinders, and further comprises a transmission part consisting of a crankshaft, a plurality of connecting rods and a plurality of sliding rods, a motor drives the crankshaft to rotate, the upper end of each sliding rod is hinged with a handle sleeve, and a handle is assembled in a handle hole of the handle sleeve in a sliding manner. According to the utility model, the motor is adopted to replace manual work to drive the handle to swing back and forth, so that the manual demand is greatly reduced, the human cost is reduced, and the overall efficiency of the test is improved; in combination with transmission efficiency and design optimization, a plurality of handles are simultaneously acted in a crankshaft transmission mode, the performance utilization rate of the motor is greatly improved, the equipment cost is greatly reduced, and meanwhile, the equipment weight is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to jack manufacturing and detection equipment technical field, concretely relates to a jack full stroke no load test equipment. BACKGROUND

[0002] As a commonly used small hoisting equipment, the jack must be tested before leaving the factory to ensure that each component can work normally and the effectiveness of the function. The jack full stroke no load test is a method for evaluating the performance and reliability of the jack under no load condition, aiming to check whether the lifting mechanism of the jack is smooth, stable and safe. The existing manufacturing enterprises generally adopt the manual sampling detection method, which needs to spend a lot of manpower and time, and the efficiency is low, and the detection is not comprehensive enough.

[0003] Patent document CN210571349U discloses a vertical jack no load test machine, which is driven by a motor to drive an eccentric wheel, a connecting rod and a guide shaft in turn, and finally drives a handle to reciprocate, realizes the continuous operation of the manual pump of the jack, completes the no load test of the vertical jack, and has the advantages of high efficiency, low labor intensity, cost saving and the like. Each motor of the equipment can only drive one handle to swing, the performance is wasted seriously, the overall cost of the equipment is high, and further improvement can be made. UTILITY MODEL CONTENT

[0004] In order to reduce the cost of the above-mentioned vertical jack no load test machine, the utility model provides a jack full stroke no load test equipment.

[0005] The technical scheme adopted by the utility model is as follows: a jack full stroke no load test equipment, comprising: a workbench, which is a detection operation platform for the jack; a plurality of columns, which are installed on the workbench; a plurality of cylinders, the cylinder body of which is fixed on the column, and the piston rod is vertically arranged; a transmission component, comprising a crankshaft, a plurality of connecting rods and a plurality of sliding rods connected in transmission, the upper end of the sliding rod penetrating through the workbench and being arranged in one-to-one correspondence with the cylinder; a handle sleeve, which is hinged at the upper end of the sliding rod and is provided with a handle hole; a handle, which is slidingly assembled in the handle hole of the handle sleeve; a motor, which drives the rotation of the crankshaft.

[0006] Preferably, it further comprises: a sliding sleeve, which is installed on the workbench and is inserted and slid with the sliding rod.

[0007] Preferably, it further comprises: a pressing plate, which is installed at the lower end of the piston rod of the cylinder.

[0008] Preferably, a pulley and a flywheel are installed on the crankshaft, and the motor and the crankshaft are driven by a belt.

[0009] Preferably, an encoder is arranged on the pulley.

[0010] Preferably, the pulley is arranged at the center of the crankshaft.

[0011] Preferably, the crankshaft is a combined shaft, comprising a center shaft and a connecting rod shaft arranged in sequence, and the center shaft and the connecting rod shaft are fixed through a crank connection.

[0012] Preferably, the column is a tubular structure, and an inner space of the column is formed as a placement space of the air pipe of the air cylinder.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] 1. Improve the test efficiency: by adopting the motor instead of manual handle reciprocating swing, greatly reduce the demand of manual, reduce the cost of human, improve the overall efficiency of test;

[0015] 2. Structure optimization: combining transmission efficiency and design optimization, through the crankshaft transmission mode acts on multiple handles at the same time, greatly improves the performance utilization rate of motor, greatly reduces the equipment cost, and reduces the weight of equipment;

[0016] 3. Accurate control: through the equipped encoder, the height and speed of the jack lifting in the test process are controllable, so that the test process has higher consistency and accuracy, and the difference caused by manual operation is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the embodiment of the utility model.

[0018] Figure 2 It is a schematic view of the transmission structure in the embodiment of the utility model.

[0019] Figure 3 It is a schematic view of the crankshaft in the embodiment of the utility model.

[0020] Workbench surface 1, column 2, air cylinder 3, crankshaft 4, connecting rod 5, slide rod 6, handle sleeve 7, handle 8, motor 9, sliding sleeve 10, pressing plate 11, pulley 12, flywheel 13, encoder (14), bottom plate 15, center shaft 401, connecting rod shaft 402, crank 403. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the embodiment and the drawings.

[0022] In the embodiment, as Figures 1-3As shown, it is a kind of jack full stroke empty load test equipment, comprising: workbench 1 as the detection operation platform of jack;Several columns 2 are installed on the workbench 1;Several cylinders 3, cylinder body is fixed on the column 2, the piston rod is vertically arranged;Transmission components, including transmission connected crankshaft 4, several connecting rods 5 and several slide rods 6, the upper end of slide rod 6 passes through the workbench 1, and is arranged corresponding to the cylinder 3;Handle sleeve 7 is hinged on the upper end of slide rod 6, and is provided with handle hole;Handle 8 is slidably assembled in the handle hole of handle sleeve 7;Motor 9 drives the rotation of crankshaft 4.In this embodiment, the motor 9 is used instead of manual reciprocating handle 8, which greatly reduces the demand for manual work, reduces the cost of human resources, and improves the overall efficiency of the test.The performance utilization rate of motor 9 is greatly improved by the transmission mode of crankshaft 4 acting on multiple handles 8 at the same time, which greatly reduces the cost of equipment and reduces the weight of equipment.

[0023] In the embodiment, as shown in Figure 1 、 Figure 2 It also includes: slide sleeve 10 is installed on the workbench 1 and is inserted and slid with slide rod 6.The design of slide sleeve makes the movement of slide rod more stable during lifting, reduces the shaking caused by friction or unevenness, and improves the stability and reliability of the test process.Slide sleeve 10 provides lubrication and guiding support to ensure that slide rod 6 moves more accurately in the vertical direction.Slide sleeve 10 is made of softer material than slide rod 6, which can effectively reduce the direct wear of slide rod 6, and can be more conveniently repaired or replaced when slide sleeve 10 is worn, reducing maintenance costs.In the embodiment, as shown in Figure 1 、 Figure 2 It also includes: pressing plate 11 is installed at the lower end of the piston rod of cylinder 3.The introduction of pressing plate 11 can effectively disperse the pressure applied by the piston rod of cylinder, so that the jack is more uniform during the test process, prevents the jack from tilting and even falling due to the pressure at the top, and ensures the stability and safety of the jack test.In the embodiment, as shown in Figure 1 、 Figure 2 Belt pulley 12 and flywheel 13 are installed on crankshaft 4, and motor 9 and crankshaft 4 are driven by belt transmission.This equipment is a low-precision device, and the transmission ratio of the transmission system is not high, and the belt transmission can meet the requirements well, and also has the advantages of quick replacement and maintenance, simplifies the maintenance process of the equipment, reduces the downtime, and improves the production efficiency.Flywheel 13 is an inertial energy storage device, which plays a role in balancing and stabilizing power transmission, can enhance the stability, reliability and efficiency of the equipment, and makes the test process more efficient and safe.

[0024] In the embodiment, as shown in Figure 1 、 Figure 2As shown in the figure, the belt wheel 12 is provided with an encoder 14. Through the encoder 14 equipped on the bottom plate 15, the rotation speed and the number of turns of the belt wheel 12 are recorded, so that the height and the speed of the jack lifting during the test process are controllable, the test process has higher consistency and accuracy, the difference caused by manual operation is reduced, and the foundation for automatic control is provided.

[0025] As shown in the figure, Figure 1 , Figure 2 the belt wheel 12 is arranged at the center position of the crankshaft 4. Arranging the belt wheel 12 at the center position or near the center position of the crankshaft 4 enhances the power transmission stability, operation efficiency and use convenience of the jack full-stroke no-load test equipment, and provides more reliable support for the test process.

[0026] As shown in the figure, Figure 3 , the crankshaft 4 is a combined shaft, including a center shaft 401 and a connecting rod shaft 402 arranged in sequence, and the center shaft 401 and the connecting rod shaft 402 are connected and fixed through a crank 403. The combined crankshaft is more convenient to process, and is convenient to expand in combination, providing greater flexibility, so that the equipment can be adjusted according to different needs to realize test of different functions, and the application range of the equipment is expanded.

[0027] As shown in the figure, Figure 1 , Figure 2 the stand 2 is a tubular structure, and an internal space for placing the air pipe of the air cylinder 3 is formed. Designing the air pipe placing space in the stand 2 can realize neat arrangement of the air pipe, avoid complicated external structure, help to improve the appearance of the equipment and simplify the maintenance process; the air pipe can also be well protected, reducing the risk of equipment failure during use.

[0028] Obviously, the above embodiments of the utility model are only examples for illustrating the utility model, and are not a limitation on the embodiments of the utility model. Other obvious changes or variations derived from the essential spirit of the utility model still belong to the protection scope of the utility model.

Claims

1. A jack full stroke empty load testing apparatus, characterized by, The utility model relates to a jack detection operation platform, which comprises the following parts: a workbench (1) as a jack detection operation platform; a plurality of columns (2) installed on the workbench (1); a plurality of cylinders (3) with cylinder bodies fixed on the columns (2) and piston rods vertically arranged; a transmission part comprising a crankshaft (4), a plurality of connecting rods (5) and a plurality of slide rods (6) connected in transmission, the upper ends of the slide rods (6) penetrating through the workbench (1) and corresponding to the cylinders (3); a handle sleeve (7) hinged to the upper ends of the slide rods (6) and provided with a handle hole; a handle (8) slidingly assembled in the handle hole of the handle sleeve (7); a motor (9) driving the rotation of the crankshaft (4).

2. The full stroke no load testing apparatus for a jack as set forth in claim 1, wherein The utility model further comprises: a sliding sleeve (10) installed on the workbench (1) and insertedly sliding with the slide rods (6).

3. The full stroke no load testing apparatus for a jack as set forth in claim 1, wherein The utility model further comprises: a pressing plate (11) installed at the lower end of the piston rod of the cylinder (3).

4. The jack full stroke no load testing apparatus of claim 1 wherein, The crankshaft (4) is provided with a belt wheel (12) and a flywheel (13), the motor (9) and the crankshaft (4) are connected through a belt transmission.

5. The jack full stroke no load testing apparatus of claim 4, wherein, The belt wheel (12) is provided with an encoder (14).

6. The full stroke no load testing apparatus for a jack as set forth in claim 4, wherein, The belt wheel (12) is arranged at the center of the crankshaft (4).

7. The full stroke no load testing apparatus for a hydraulic jack as set forth in claim 1, wherein The crankshaft (4) is a combined shaft comprising a center shaft (401) and a connecting rod shaft (402) arranged in sequence, and the center shaft (401) and the connecting rod shaft (402) are connected and fixed through a crank (403).

8. The full stroke no load testing apparatus for a hydraulic jack as set forth in claim 1, wherein, The column (2) is a tubular structure, and the inside forms a space for placing the air pipes of the cylinders (3).

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