Turnover transfer case test trolley

Abstract

The utility model relates to the technical field of machine manufacturing, and discloses a turnover transfer case test trolley which comprises a support and a working table, grips are fixedly installed on the left side and the right side of the upper portion of the support, cushion blocks are fixedly installed on the left side and the right side of the support, bearings are movably arranged on the cushion blocks respectively, and the bearings are fixedly installed on the working table. A hand-cranking speed reducer is fixedly installed on the left side of the support, a transmission shaft is installed at the output end of the hand-cranking speed reducer, the other end of the transmission shaft is connected with a bearing on the left side, a rotating shaft is movably installed at the other ends of the two bearings, and baffles are fixedly installed at the upper end and the lower end of the working table top. According to the turnover transfer case test trolley, under the action of the turnover structure and the driving structure, the test precision can be improved, test data errors caused by inconvenient operation are reduced, the test precision is improved, operation is convenient, the angle of the transfer case can be flexibly adjusted according to actual needs, and the turnover transfer case test trolley adapts to different test environments and operation requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a transfer case test trolley that can be turned over. Background Art

[0002] In the prior art, the test workbench is usually a fixed structure. When conducting factory tests on some transfer cases, workers often need to use a crane to lift the transfer case in the air for testing, constantly adjust the position of the transfer case, and even use other auxiliary tools to complete the test. This not only reduces work efficiency, but may also cause deviations in test data due to inconvenient operation.

[0003] In the past, transfer cases were typically hoisted directly onto the worksite using a crane and slings, using the lugs installed in the threaded holes of the transfer case housing for suspended testing. This method not only causes impact damage to the assembled transfer case's internal precision components, reducing accuracy, but also causes impacts and bumps on the exterior, seriously affecting product performance and appearance. To address this, we designed and developed a reversible test trolley. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a flippable transfer case test trolley, which has the advantages of not only being able to fix the transfer case for testing, but also being able to rotate and adjust according to the test angle. It solves the problem of using a lifting crane and a sling to lift the transfer case shell threaded holes for hanging testing at the workplace. This method not only causes impact damage and reduces the accuracy of the assembled transfer case's internal precision parts, but also causes impact and bumps on the appearance.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose of convenient testing and rotation adjustment according to the test angle, the utility model provides the following technical solutions: a flippable transfer case test trolley, comprising a bracket and a work surface, handles are fixedly installed on the left and right sides above the bracket, pads are fixedly installed on the left and right sides of the bracket, bearings are movably provided above the pads, a hand-cranked reducer is fixedly installed on the left side of the bracket, a transmission shaft is installed on the output end of the hand-cranked reducer, the other end of the transmission shaft is connected to the bearing on the left, and a rotating shaft is movably installed on the other end of the two bearings, the work surface is fixedly installed on the rotating shaft, and baffles are fixedly installed on the upper and lower ends of the work surface.

[0008] Preferably, the bottom of the bracket is movably connected to a pulley.

[0009] Preferably, a semicircular opening is provided on the work surface, and a fixing hole is provided on the semicircular opening.

[0010] Preferably, the hand-crank reducer adopts a worm gear reducer, and a rocker is installed above the hand-crank reducer.

[0011] (3) Beneficial effects

[0012] Compared with the prior art, the present invention provides a reversible transfer case test trolley with the following beneficial effects:

[0013] 1. The reversible transfer case test trolley, through the settings of the reducer, rotating shaft, and work surface, can flexibly adjust the angle of the transfer case according to actual needs when testing the transfer case, adapting to different test environments and operating requirements. At the same time, the setting of the pulley reduces the test data error caused by inconvenient operation and improves the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a structural diagram of the driving device of the utility model.

[0016] In the figure: 1 bracket, 2 handle, 3 pad, 4 bearing, 5 work surface, 6 baffle, 7 pulley, 8 hand-crank reducer, 9 transmission shaft, 10 rocker, 11 fixing hole, 12 rotating shaft. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-2A reversible transfer case test trolley includes a bracket 1 and a work surface 5. The work surface 5 is made of high-strength, wear-resistant metal material and has sufficient load-bearing capacity and flatness to ensure the stable placement of the workpiece. The bracket 1 is composed of a solid metal frame to provide stable support for the work surface. Handles 2 are fixedly installed on the left and right sides of the bracket 1. Pads 3 are fixedly installed on the left and right sides of the bracket 1. Bearings 4 are movably provided above the pads 3. A hand-crank reducer 8 is fixedly installed on the left side of the bracket 1. The output end of the hand-crank reducer 8 is installed. It is equipped with a transmission shaft 9, the other end of which is connected to the bearing 4 on the left. The other ends of the two bearings 4 are movably mounted with a rotating shaft 12. The work table 5 is fixedly mounted on the rotating shaft 12 to ensure that the work table can rotate freely around the rotating shaft. Baffles 6 are fixedly mounted on the upper and lower edges of the work table 5 to prevent the workpiece from slipping during the flipping process. A semicircular opening is provided on the work table 5, and a fixing hole 11 is provided on the semicircular opening. The transfer case is fixed with bolts. The bottom of the bracket 1 is movably connected to a pulley 7, and the pulley 7 has a brake structure.

[0019] During use, the staff moves the test trolley to the specified position through the handle 2 and fixes the test trolley in place through the brake structure on the pulley 7. The transfer case is fixed to the fixing hole 11 on the work table 5 of the test trolley by bolts, and then the transfer case is factory tested. When the transfer case needs to be tested at a specific angle, the worm gear reducer 8 can be manually cranked. When the hand crank inputs force, this force generates torque on the worm. Due to the meshing action of the worm gear, the torque of the worm is transmitted to the worm wheel, causing the worm wheel to output torque. The rotating shaft is connected to the worm wheel, and the worm wheel drives the transmission shaft 9 to rotate through the bearing 4. The rotation of the bearing 4 drives the rotating shaft 12 to rotate, thereby driving the work table 5 installed on the rotating shaft 12 to rotate. The staff can control the flipping of the work table by shaking the handle. During the test, the baffle 6 on the work table 5 can effectively prevent the workpiece from slipping.

[0020] Due to the self-locking mechanism of the worm gear reducer itself, when the lead angle of the worm is less than the equivalent friction angle, the worm gear mechanism has a self-locking characteristic, which means that in the absence of an external force driving the worm to rotate in the opposite direction, the worm wheel cannot drive the worm to rotate. In the hand-cranked worm gear reducer, this self-locking property can prevent the reaction force of the load from causing the worm wheel to reverse, thereby ensuring the position stability of the equipment after the hand-cranking operation is stopped.

[0021] To sum up, the flippable transfer case test trolley can improve work efficiency through the action of the workbench body, flip structure, drive structure, locking structure, fixing hole and baffle. The staff can test the transfer case without frequently moving positions or using auxiliary tools, saving operation time; improving test accuracy, reducing test data errors caused by inconvenient operation, improving test accuracy, and facilitating operation. The angle of the transfer case can be flexibly adjusted according to actual needs to adapt to different test environments and operation requirements.

[0022] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reversible transfer case test trolley, comprising a bracket (1) and a work surface (5), characterized in that: Handles (2) are fixedly installed on the left and right sides of the bracket (1), pads (3) are fixedly installed on the left and right sides of the bracket (1), and bearings (4) are movably installed on the pads (3). A hand-crank reducer (8) is fixedly installed on the left side of the bracket (1), and a transmission shaft (9) is installed on the output end of the hand-crank reducer (8). The other end of the transmission shaft (9) is connected to the bearing (4) on the left side, and a rotating shaft (12) is movably installed on the other ends of the two bearings (4). The work table (5) is fixedly installed on the rotating shaft (12), and baffles (6) are fixedly installed on the upper and lower ends of the work table (5).

2. The reversible transfer case test vehicle according to claim 1, characterized in that: The bottom of the bracket (1) is movably connected to a pulley (7).

3. The reversible transfer case test vehicle according to claim 1, characterized in that: A semicircular opening is provided on the work surface (5), and a fixing hole (11) is provided on the semicircular opening.

4. The reversible transfer case test vehicle according to claim 1, characterized in that: The hand-cranked reducer (8) adopts a worm gear reducer, and a rocker (10) is installed above the hand-cranked reducer (8).

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