A test machine group sharing chassis

Abstract

The application relates to the technical field of generator unit testing, and discloses a kind of test unit common chassis;Including fixed disc and auxiliary mechanism, auxiliary mechanism includes support table, linear guide rail, linear slide, moving frame, bidirectional screw rod, servo motor and support device, before unit testing, the locking device on moving frame and support table can be removed, then the action of servo motor is controlled to drive the action of bidirectional screw rod, thereby the spacing of two moving frames is adjusted, the support device of unit fixing can be adjusted in the left and right directions, which is convenient for adapting different models of units, at the same time, the front and rear adjusting structure of the support device itself is matched, thereby a single chassis structure can be adapted to use multiple units, which is beneficial to reduce the use cost.

Description

Technical Field

[0001] This invention relates to the field of generator set testing technology, and in particular to a common chassis for testing generator sets. Background Technology

[0002] Before leaving the factory, generator sets need to undergo matching performance tests on the engine and generator, including load characteristics, vibration, temperature rise, fuel consumption, and other indicators. Due to product serialization, there are often more than two engine models (such as different suppliers or different emission standards) and more than four generator models (different power levels or different manufacturers) in the same displacement range, which need to be cross-combined for testing.

[0003] However, most of the chassis currently used for unit installation are only compatible with the same model of unit. When testing multiple models of units, it is necessary to change to chassis with different structures, which greatly increases the cost of use. Summary of the Invention

[0004] The purpose of this invention is to provide a common chassis for test units, which can adapt a single chassis structure to the use of multiple units, thereby reducing the cost of use.

[0005] To achieve the above objectives, the present invention provides a common chassis for a test unit; including a fixed plate, on which a plurality of fixing holes are evenly spaced in a ring, and also including an auxiliary mechanism; The auxiliary mechanism includes a support platform, linear guide rails, linear sliders, a movable frame, a bidirectional lead screw, a servo motor, and a bracket device. The support platform is mounted on the top of the fixed plate. The linear guide rails are mounted on the internal stepped platform of the support platform and are symmetrically arranged front and back. The front and rear end faces of the linear guide rails are slidably connected to positioning protrusions on the stepped platform, respectively. The height of the positioning protrusions does not interfere with the sliding of the linear slider. The linear slider is slidably mounted on the linear guide rails. The movable frame is mounted on the top of the linear slider and is detachably connected to the support platform via a locking device. The bidirectional lead screw is rotatably connected to the support platform and threadedly connected to the movable frame. The servo motor is mounted on the left side of the support platform, and its output shaft is connected to the bidirectional lead screw via a rigid coupling. The bracket device is located on the top of the movable frame and is used for generator set installation.

[0006] The support platform has perforated plates at the bottom of the front and rear sides, and side plates on the left and right sides. The servo motor is installed on the left side plate.

[0007] The stepped platform inside the support platform is provided with a flow guide slope on the side away from the front and rear side walls.

[0008] The support device includes a fixed frame and a connecting assembly. The fixed frame is installed on the top of the movable frame. The connecting assembly is disposed on the top of the fixed frame and is arranged symmetrically front and back.

[0009] The connecting assembly includes an adjusting block and a mounting plate. The adjusting block is fixed to the top of the fixed frame by a connector. The mounting plate is welded to the top of the adjusting block and connected to the support feet of the generator set.

[0010] The system also includes a protection mechanism, which comprises a T-shaped plate and a mating assembly. The T-shaped plate is detachably connected to the side plate on the left side of the support platform and is symmetrically arranged on the front and rear sides of the servo motor. The mating assembly is arranged on the T-shaped plate.

[0011] The mating components include a top plate and a ventilation plate, with the top plate welded to the top of the T-shaped plate and the ventilation plate installed on the left side of the T-shaped plate.

[0012] This invention provides a common chassis for testing units. Before testing, the locking devices on the movable frame and support platform can be removed, and then the servo motor can be controlled to drive the bidirectional lead screw to adjust the distance between the two movable frames. This allows the spacing of the fixed support device for the unit to be adjusted in the left and right directions, making it easy to adapt to different models of units. At the same time, the support device itself has a front and rear adjustment structure, which enables a single chassis structure to be adapted to multiple units, thus reducing the cost of use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the test unit's shared chassis according to the first embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of the fixing frame according to the first embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the overall structure of the test unit's shared chassis according to the second embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the stabilizing mechanism according to the third embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the card block structure according to the third embodiment of the present invention.

[0019] In the diagram: 101-Fixed plate, 102-Fixed hole, 103-Support platform, 104-Linear guide rail, 105-Linear slider, 106-Moving frame, 107-Two-way lead screw, 108-Servo motor, 109-Positioning protrusion, 110-Plate with perforation, 111-Side plate, 112-Guide slope, 113-Locking device, 114-Fixed frame, 115-Adjusting block, 116-Mounting plate, 201-T-shaped plate, 202-Top plate, 203-Ventilation plate, 301-Card block, 302-Positioning block. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] First embodiment: as follows Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of the test unit's shared chassis. Figure 2 This is a structural diagram of the fixed frame. The present invention provides a common chassis for testing units: it includes a fixed chassis 101 and auxiliary mechanisms. The auxiliary mechanisms include a support platform 103, a linear guide rail 104, a linear slider 105, a moving frame 106, a bidirectional lead screw 107, a servo motor 108, and a support device. The support device includes a fixed frame 114 and a connecting assembly. The connecting assembly includes an adjusting block 115 and a mounting plate 116. This solution allows a single chassis structure to be adapted for use with multiple testing units, reducing operating costs. It is understood that this solution enables a single chassis structure to be adapted for use with multiple testing units.

[0022] In this embodiment, a plurality of fixing holes 102 are evenly spaced in a ring on the fixing plate 101. These fixing holes 102 facilitate the fixing of the fixing plate 101 using locating pins and bolts. Furthermore, all standard parts used in this application can be purchased commercially, and can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. When sealing is required for the corresponding components during installation, sealing gaskets or sealant can be used. Finally, the control method in this application is automatic control via a controller. The control circuit of the controller can be easily programmed by those skilled in the art and is common knowledge in the field; therefore, this application will not explain the control method and circuit connections in detail.

[0023] Preferably, the support platform 103 is mounted on the top of the fixed plate 101, the linear guide rail 104 is mounted on the internal stepped platform of the support platform 103 and is symmetrically arranged front and back, and its bottom front and rear end faces are respectively slidably connected to the positioning protrusions 109 on the stepped platform. The height of the positioning protrusions 109 does not interfere with the sliding of the linear slider 105. The linear slider 105 is slidably mounted on the linear guide rail 104. The movable frame 106 is mounted on the top of the linear slider 105 and is detachably connected to the support platform 103 through the locking device 113. The bidirectional lead screw 107 is rotatably connected to the support platform 103 and threadedly connected to the movable frame 106. The servo motor 108 is mounted on the left side of the support platform 103, and its output shaft is connected to the bidirectional lead screw 107 through a rigid coupling. The bracket device is set on the top of the movable frame 106 for generator set installation. The support platform 103 has stepped platforms on its front and rear sides to facilitate the installation of the linear guide rail 104 using countersunk bolts. Multiple positioning protrusions 109 are symmetrically arranged on the front and rear sides of the linear guide rail 104 and are integrally formed with the support platform 103, ensuring the straightness of the linear guide rail 104 after installation. The movable frame 106 is connected to the linear slider 105 via positioning pins and bolts. The two ends of the bidirectional lead screw 107 are respectively mounted on the side plates 111 on the left and right sides of the support platform 103 via rotating bearings. The bottom of the movable frame 106 has a rectangular plate with threaded holes that mate with the bidirectional lead screw 107. The servo motor 108 is equipped with an encoder and a brake mechanism for convenient position control and shaft locking. The locking device 113 uses a T-shaped screw and nut structure. The lubrication of the linear slider 105 and the bidirectional lead screw 107 can be achieved by directly referring to the lubrication structure of the X-axis lead screw and guide rail slider in existing vertical machining centers. Furthermore, a telescopic sleeve can be installed on the outside of the bidirectional lead screw 107 for dust protection.

[0024] Preferably, the support platform 103 has perforated plates 110 at its front and rear bottom sides, and side plates 111 on its left and right sides, with the servo motor 108 mounted on the left side plate 111. The perforated plates 110 facilitate the installation and fixation of the support platform 103.

[0025] Preferably, the stepped platform inside the support platform 103 is provided with a guide slope 112 on the side away from the front and rear side walls. The guide slope 112 facilitates the guidance of the lubricating oil of the linear slider 105 into the collection structure formed by the support platform 103 and the side plates 111 on both sides.

[0026] Preferably, the fixing frame 114 is mounted on top of the movable frame 106; the connecting assembly is disposed on top of the fixing frame 114 and is arranged symmetrically front and back. The fixing frame 114 is U-shaped, with the bottom fixed by positioning pins and bolts, and a through T-shaped groove provided at the top.

[0027] Preferably, the adjusting block 115 is fixed to the top of the fixing frame 114 via a connector; the mounting plate 116 is welded to the top of the adjusting block 115 and connected to the support feet of the generator set. The T-shaped portion of the adjusting block 115 can be directly slidably adapted to the T-slot on the top of the fixing frame 114, and its perforated ear plate facilitates fixing via T-bolts and nuts. The top of the fixing frame 114 is provided with multiple adjusting holes (two in a group) to facilitate the setting of T-bolts, thereby enabling adjustment of the front-to-back distance between the two mounting plates 116.

[0028] When using this invention to adapt a single chassis structure to multiple units and reduce operating costs, before testing the unit, the locking device 113 on the movable frame 106 and the support platform 103 can be removed (removed before adjustment and reinstalled after adjustment). Then, the servo motor 108 is controlled to drive the bidirectional lead screw 107 to adjust the distance between the two movable frames 106. This allows the distance between the support device for fixing the unit to be adjusted in the left and right directions, facilitating adaptation to different models of units. At the same time, the support device itself has a front and rear adjustment structure to adjust the front and rear distance between the two mounting plates 116, thereby enabling a single chassis structure to adapt to multiple units and reducing operating costs.

[0029] Second embodiment: as follows Figure 3 As shown, where Figure 3 This is a schematic diagram of the overall structure of the shared chassis for the test unit. Based on the first embodiment, the present invention provides a shared chassis for the test unit that further includes a protective mechanism. The protective mechanism includes a T-shaped plate 201 and a mating component. The mating component includes a top plate 202 and a ventilation plate 203.

[0030] The T-shaped plate 201 is detachably connected to the side plate 111 on the left side of the support platform 103 and is symmetrically arranged on the front and rear sides of the servo motor 108; the mating assembly is arranged on the T-shaped plate 201. A non-through T-shaped groove is provided from top to bottom on the left side plate 111 to facilitate the installation of the T-shaped plate 201. A through hole is vertically provided at the T-shaped end of the T-shaped plate 201 to facilitate fixing it to the side plate 111 with a T-shaped screw.

[0031] Secondly, the top plate 202 is welded to the top of the T-shaped plate 201; the ventilation plate 203 is installed on the left side of the T-shaped plate 201. The ventilation plate 203 is provided with multiple ventilation holes.

[0032] In this embodiment, the T-shaped plate 201, the top plate 202, and the ventilation plate 203 can provide impact protection for the servo motor 108, thereby improving its operational safety.

[0033] Third embodiment: as follows Figure 4 and Figure 5 As shown, where Figure 4 This is a schematic diagram of the stabilizing mechanism. Figure 5 This is a schematic diagram of the card block structure. Based on the first embodiment, the present invention provides a test unit shared chassis that also includes a stabilizing mechanism, the stabilizing mechanism including a card block 301 and a positioning block 302.

[0034] The locking block 301 is slidably engaged with the end of the linear guide rail 104, and the positioning block 302 is integrally formed with the locking block 301 and detachably connected to the support platform 103. The positioning block 302 is fixed by positioning pins and bolts.

[0035] In this embodiment, after the linear guide rail 104 is fixed, the locking block 301 can be slidably installed, and finally the locking block 301 is limited by fixing the positioning block 302, which will help to improve the linear stability of the linear guide rail 104 after installation.

[0036] It should be noted that the illustrations provided in the above embodiments are for illustrative purposes only and represent schematic diagrams, not actual physical images. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the figures. All technologies, shapes, and structural parts not described in detail in this invention are well-known technologies.

[0037] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A common chassis for a testing unit, comprising a fixed plate, wherein a plurality of fixing holes are evenly spaced in a ring on the fixed plate; Its features are, It also includes auxiliary mechanisms; The auxiliary mechanism includes a support platform, linear guide rails, linear sliders, a movable frame, a bidirectional lead screw, a servo motor, and a bracket device. The support platform is mounted on the top of the fixed plate. The linear guide rails are mounted on the internal stepped platform of the support platform and are symmetrically arranged front and back. The front and rear end faces of the linear guide rails are slidably connected to positioning protrusions on the stepped platform, respectively. The height of the positioning protrusions does not interfere with the sliding of the linear slider. The linear slider is slidably mounted on the linear guide rails. The movable frame is mounted on the top of the linear slider and is detachably connected to the support platform via a locking device. The bidirectional lead screw is rotatably connected to the support platform and threadedly connected to the movable frame. The servo motor is mounted on the left side of the support platform, and its output shaft is connected to the bidirectional lead screw via a rigid coupling. The bracket device is located on the top of the movable frame and is used for generator set installation.

2. The test unit sharing chassis as described in claim 1, characterized in that, The support platform has perforated plates on the bottom of the front and rear sides, and side plates on the left and right sides. The servo motor is installed on the left side plate.

3. The shared chassis of the test unit as described in claim 1, characterized in that, The stepped platform inside the support platform is provided with a flow guide slope on the side away from the front and rear side walls.

4. The test unit sharing chassis as described in claim 1, characterized in that, The support device includes a fixed frame and a connecting assembly. The fixed frame is installed on the top of the movable frame. The connecting assembly is disposed on the top of the fixed frame and is arranged symmetrically front and back.

5. The shared chassis of the test unit as described in claim 4, characterized in that, The connecting assembly includes an adjusting block and a mounting plate. The adjusting block is fixed to the top of the mounting frame by a connector. The mounting plate is welded to the top of the adjusting block and connected to the support feet of the generator set.

6. The shared chassis of the test unit as described in claim 2, characterized in that, It also includes a protection mechanism, which includes a T-shaped plate and a mating assembly. The T-shaped plate is detachably connected to the side plate on the left side of the support platform and is symmetrically arranged on the front and rear sides of the servo motor. The mating assembly is arranged on the T-shaped plate.

7. The shared chassis of the test unit as described in claim 6, characterized in that, The mating components include a top plate and a ventilation plate, the top plate being welded to the top of the T-shaped plate; the ventilation plate being installed on the left side of the T-shaped plate.

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