CN217359009U - Quick-mounting trolley for power assembly rack - Google Patents

Abstract

The utility model belongs to the technical field of car bench test, a power assembly rack fast-assembling dolly is disclosed, including two portable dollies and a support, two portable dollies set up respectively in the place ahead of support and rear in order to install engine and gearbox assembly and rear axle assembly respectively, and the intermediate strut of transmission shaft is equipped with two-dimentional horizontal migration platform, lift platform and supplementary supporting platform on the portable dolly on the support. The utility model discloses install engine and gearbox assembly and rear axle assembly respectively on two portable dollies and divide and be listed as at the both ends of transmission shaft and through support fixed stay transmission shaft, realized the quick installation before whole car is experimental, can shorten the power assembly rack and build the time by a wide margin, convenient to use, work effect is good.

Description

Quick-mounting trolley for power assembly rack

Technical Field

The utility model relates to an experimental technical field of car rack especially relates to a power assembly rack fast-assembling dolly.

Background

With the shortening of the research and development period of the whole vehicle, after the calibration test of an engine, a gearbox and a rear axle and before the calibration test of the whole vehicle is carried out, the performance and reliability test of a power assembly rack is more and more important.

The engine rack quick-assembly trolley is usually adopted in the prior art, an engine support adjuster with a Z axis capable of being adjusted up and down is installed in a two-dimensional adjusting mechanism of an engine quick-assembly trolley body, a quick connecting unit used for being connected with a laboratory pipeline, an intercooler installing seat, a temperature collecting box and a pressure collecting box are further installed on the engine quick-assembly trolley body respectively, an intercooler heat exchanger used for realizing air inlet cooling and air inlet temperature control of an engine is installed on the intercooler installing seat, the idleness of equipment caused by replacement of the engine can be shortened, the load factor of test equipment is improved, the engine is installed quickly and conveniently, and the use efficiency of the equipment is greatly improved. However, the fast-assembling trolley only serving as an engine rack cannot be used for building an engine-gearbox assembly rack, so that the problem of long calibration test time of the whole trolley still exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power assembly rack fast-assembling dolly to solve the quick installation problem of whole car calibration test front engine and gearbox assembly, transmission shaft assembly, rear axle assembly triplex, can shorten power assembly rack build time by a wide margin, convenient to use, work effect is good.

To achieve the purpose, the utility model adopts the following technical proposal:

a power assembly rack quick-assembly trolley comprises two movable trolleys and a support, wherein the two movable trolleys are arranged in front of and behind the support respectively, an engine and a gearbox assembly are mounted on the movable trolley in front of the support, a rear axle assembly is mounted on the movable trolley in rear of the support, a transmission shaft is connected between the engine and gearbox assembly and the rear axle assembly, the middle of the transmission shaft is supported on the support, and the support is fixed on the floor of a test room;

the movable trolley comprises a base, wherein fixing mechanisms are arranged around the base to fix the base on the floor of the laboratory, a two-dimensional horizontal moving platform, a lifting platform and an auxiliary supporting platform are arranged on the base, and the lifting platform and the auxiliary supporting platform are arranged on the two-dimensional horizontal moving platform; the engine and gearbox assembly or the rear axle assembly is mounted on the lifting platform, and the auxiliary support platform is configured to support a front hub bearing or a rear hub bearing.

Optionally, the base is provided with two parallel sliding grooves, and the sliding grooves are connected with at least three first guide rails in a sliding manner to form the two-dimensional horizontal moving platform.

Optionally, in the three first guide rails, two of the two first guide rails on two sides are respectively connected with two first telescopic beams in a sliding manner to form the lifting platform, and the middle first guide rail is connected with two second telescopic beams in a sliding manner to form the auxiliary support platform.

Optionally, the securing mechanism comprises:

a plurality of fixing plates are arranged on the base at intervals and can be supported on the floor of the laboratory, and pin holes are formed in the fixing plates;

one end of the connecting plate is provided with a pin, and the pin is matched and connected with the pin hole;

and the bolt penetrates through the connecting plate and is connected with the floor of the laboratory so as to fix the fixing plate.

Optionally, a clamping block is arranged at the front end of the bolt, the bolt is in threaded connection with the clamping block, and the clamping block can be clamped on the floor of the test room.

Optionally, the connecting plate is a right-angled zigzag step plate, and the step height of the connecting plate is equal to the thickness of the fixing plate.

Optionally, the movable trolley further comprises two first beams, two ends of each first beam are connected to the tops of two first telescopic beams on the same side of the two first guide rails, and the engine and gearbox assembly is fixed to the two first beams.

Optionally, the stent comprises:

the bottom end of the third telescopic beam is detachably connected to the floor of the laboratory, and the telescopic direction is vertical;

the second cross beam is connected to the top of the third telescopic beam and arranged in the horizontal direction;

the bearing frame is fixed below the second cross beam and provided with a bearing hole, and the transmission shaft penetrates through the bearing hole.

Optionally, the movable trolley further comprises a tray, and the tray is arranged on the base and located below the two-dimensional horizontal moving platform.

Optionally, the moveable cart further comprises a suspended support platform slidably disposed on the first rail, the suspended support platform configured to support a side suspension support.

The utility model has the advantages that:

the utility model provides a pair of power assembly rack fast-assembling dolly installs engine and gearbox assembly and rear axle assembly respectively on two portable dollies and divide and be listed as at the both ends of transmission shaft and through support fixed stay transmission shaft, has realized the quick installation before whole car is experimental, can shorten power assembly rack build time by a wide margin, convenient to use, work effect is good.

Drawings

FIG. 1 is a schematic view of the overall structure of a power assembly rack quick-assembly cart of the present invention;

FIG. 2 is a schematic structural view of an embodiment of the present invention in which an engine and transmission assembly is mounted on a movable cart;

fig. 3 is a schematic structural diagram of a bracket according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of the embodiment of the present invention in which the rear axle assembly is mounted on the movable cart;

FIG. 5 is a schematic view of the connection relationship between the connection board and the floor of the test room in the embodiment of the present invention;

fig. 6 is a schematic view of a connection structure of the bolt and the clamping block in the embodiment of the present invention.

In the figure:

100. an engine and transmission assembly; 200. a rear axle assembly; 300. a drive shaft; 400. a laboratory floor; 500. a front hub bearing; 600. a rear hub bearing; 700. a side suspension bracket;

1. the trolley can be moved; 11. a base; 12. a fixing mechanism; 121. a fixing plate; 122. a connecting plate; 1221. a pin; 123. a bolt; 124. a clamping block; 13. a chute; 14. a first guide rail; 15. a first telescoping beam; 16. a second telescoping beam; 161. a bearing support; 17. a first cross member; 18. a tray; 19. a suspended support platform; 191. a second guide rail; 192; a fourth telescoping beam;

2. a support; 21. a third telescopic beam; 22. a second cross member; 23. and a bearing bracket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

The utility model provides a power assembly rack fast-assembling dolly, as shown in FIG. 1, power assembly includes engine and gearbox assembly 100 and rear axle assembly 200, connects through transmission shaft 300 and realizes the transmission in order to test. Shorten test cycle in order to improve whole car test effect, the utility model provides a power assembly rack fast-assembling dolly to realize the fast assembly between engine and the gearbox assembly 100 and the rear axle assembly 200.

As shown in fig. 1, the utility model provides a power assembly rack fast-assembling trolley comprises two movable trolleys 1 and a support 2, the two movable trolleys 1 are respectively arranged in front of and behind the support 2, the engine and gearbox assembly 100 is installed on the movable trolley 1 in front, the rear axle assembly 200 is installed on the movable trolley 1 in rear, a transmission shaft 300 is connected between the engine and gearbox assembly 100 and the rear axle assembly 200, the middle of the transmission shaft 300 is supported on the support 2, and the support 2 is fixed on a test room floor 400; the movable trolley 1 comprises a base 11, wherein fixing mechanisms 12 are arranged around the base 11 to fix the base 11 on a floor 400 of a laboratory, a two-dimensional horizontal moving platform, a lifting platform and an auxiliary supporting platform are arranged on the base 11, and the lifting platform and the auxiliary supporting platform are arranged on the two-dimensional horizontal moving platform; the lift platform has mounted thereon an engine and transmission assembly 100 or a rear axle assembly 200, and the auxiliary support platform is configured to support a front hub bearing 500 or a rear hub bearing 600.

The utility model discloses a power assembly rack fast-assembling dolly, install engine and gearbox assembly 100 and rear axle assembly 200 respectively on two portable dollies 1 and divide the both ends of arranging at transmission shaft 300 and through 2 fixed stay transmission shafts 300 on the support, the engine and gearbox assembly 100 and rear axle assembly 200 after having done calibration test can directly be fixed on laboratory floor 400 through portable dolly 1, transmission shaft 300 passes through 2 connections of support and fixes at laboratory floor 400, and then realized the quick installation before whole car is experimental, can shorten power assembly rack build time by a wide margin, high durability and convenient use, and good working effect.

Optionally, two parallel sliding grooves 13 are formed on the base 11, and at least three first guide rails 14 are slidably connected to the sliding grooves 13 to form a two-dimensional horizontal moving platform.

As shown in fig. 2, two spaced sliding grooves 13 extending along a horizontal first direction are disposed on two sides of the base 11, in this embodiment, the sliding grooves 13 are inverted T-shaped grooves, two ends of three first guide rails 14 are slidably connected in the sliding grooves 13, it can be understood that a sliding block matched with the inverted T-shaped sliding grooves 13 is disposed at the bottom of the first guide rails 14, and a locking mechanism is disposed between the first guide rails 14 and the sliding grooves 13, so that the first guide rails 14 can be locked and fixed when sliding to a specific position. The three first guide rails 14 are arranged parallel to each other and have an extension in a second direction, the first direction being perpendicular to the second direction, forming a two-dimensional horizontal moving platform. The three first guide rails 14 are respectively driven to slide independently, the sliding of the first guide rails 14 can be driven manually, or can be driven by a motor or a screw, and the selection can be specifically performed according to the sliding position precision and the test space, which is not limited in this embodiment.

Optionally, two first telescopic beams 15 are slidably connected to two first guide rails 14 on two sides of the three first guide rails 14 respectively to form a lifting platform, and two second telescopic beams 16 are slidably connected to the middle first guide rail 14 to form an auxiliary supporting platform.

Referring to fig. 2 again, two first telescopic beams 15 are slidably connected to the two first guide rails 14 on two sides, and a total of four first telescopic beams 15 are provided, the first telescopic beams 15 can be extended and retracted in the vertical direction to adjust the height, preferably, the four first telescopic beams 15 are driven by synchronously controlled hydraulic pressure to perform uniform adjustment, so as to maintain the installation angle and the lifting height of the engine and gearbox assembly 100 or the rear axle assembly 200. The two ends of the middle first guide rail 14 are respectively connected with a second telescopic beam 16 in a sliding mode, the top of the second telescopic beam 16 supports the front hub bearing 500 or the rear hub bearing 600, and the second telescopic beam 16 stretches in the vertical direction to achieve lifting of the top end position so as to be supported at the bottom end of the front hub bearing 500 or the rear hub bearing 600. The second telescoping beams 16 are slidably connected to the first rail 14 to facilitate adjustment of the spacing between the two second telescoping beams 16 to accommodate different sizes or models of engine and transmission assemblies 100. Optionally, as shown in fig. 2 and 4, a bearing bracket 161 is disposed at the top of the second telescopic beam 16, the bearing bracket 161 is L-shaped, one side plate of the bearing bracket 161 is fixed at the top of the second telescopic beam 16 and can support the front hub bearing 500 or the rear hub bearing 600, and the other side plate can abut against the inner side end face of the front hub shaft 500 or the rear hub bearing 600, so as to achieve better positioning and limiting.

Optionally, the fixing mechanism 12 includes a plurality of fixing plates 121, a plurality of connecting plates 122 and bolts 123, as shown in fig. 4, the plurality of fixing plates 121 are disposed on the base 11 at intervals and can be supported on the floor 400 of the laboratory, and the fixing plates 121 are provided with pin holes; one end of the connecting plate 122 is provided with a pin 1221, and the pin 1221 is matched and connected with the pin hole; bolts 123 are inserted through the connection plate 122 and connected to the laboratory floor 400 to fix the fixing plate.

Referring to fig. 4 and 5, the fixing plates 121 are generally disposed at four corners of the base 11, and are fixedly connected to or integrally formed with the base 11, and the fixing plates 121 protrude from the sides of the base 11 to be supported and fixed on the floor 400 of the laboratory together with the base 11. When the bolt 123 penetrates through the connecting plate 122 to connect the test room floor 400, the pin 1221 on the connecting plate 122 can rotate for a certain angle relative to the pin hole to fix the installation direction, and after the bolt 123 is tightened, the connecting plate 122 presses the fixing plate 121 tightly on the test room floor 400 to realize fixation. The adoption of the connection mode that the pin 1221 is matched with the pin hole is beneficial to fixing the movable trolley 1 after the proper position and angle are adjusted, so that the transmission shaft 300 can be used for quickly connecting the engine and gearbox assembly 100 and the rear axle assembly 200, and the installation efficiency before the whole trolley test is improved.

Optionally, a fixture block 124 is disposed at a front end of the bolt 123, the bolt 123 is in threaded connection with the fixture block 124, and the fixture block 124 can be clamped on the test room floor 400.

As shown in fig. 5 and 6, in this embodiment, the top of the clamping block 124 has a threaded hole for connecting the bolt 123, the bottom end of the clamping block 124 is a rhombus, the surface of the test room floor 400 is provided with a plurality of T-shaped blocks arranged in a matrix, an inverted T-shaped sliding groove is formed below the surface of the T-shaped block, the clamping block 124 can be inserted from the gap between any two T-shaped blocks and clamped in the inverted T-shaped sliding groove after rotating for a certain angle, and then the bolt 123 rotates relative to the clamping block 124 to lock, so as to realize the fastening connection of the connecting plate 122 and the fixing plate 121. The structure is convenient for the whole movable trolley 1 to be installed and fixed at any position, holes do not need to be formed in the floor 400 of the laboratory, the connection fixing efficiency is improved, and the universality is good.

Alternatively, the connecting plate 122 is a step plate in a zigzag shape at right angles, and the step height of the connecting plate 122 is equal to the thickness of the fixing plate 121.

As shown in fig. 5 and 6, the connecting plate 122 is a plate of an integral bending structure, a pin 1221 is disposed on an end face of one end, an end face of the other end on the same side as the pin 1221 can abut against the floor 400 of the test room, the height of the middle portion is equal to the thickness of the fixing plate 121, when the pin 1221 is inserted into the pin hole and pressed, and meanwhile, the other end opposite to the pin is pressed against the floor 400 of the test room, the fixing plate 121 can be pressed between the connecting plate 122 and the floor 400 of the test room. Preferably, the end surfaces of the connection plate 122 for contacting the laboratory floor 400 and the fixed plate 121 are provided with elastic shock-absorbing pads for reducing friction damage.

Optionally, the movable trolley 1 further includes two first beams 17, two first beams 17 are provided, two ends of each first beam 17 are respectively connected to the tops of two first telescopic beams 15 on the same side on the two first guide rails 14, and the engine and gearbox assembly 100 is fixed on the two first beams 17.

As shown in fig. 2, two first cross members 17 extend in a first direction and are respectively fixed on the top of the two first telescopic beams 15 for fixing the engine and transmission assembly 100. The first cross member 17 is provided to facilitate positional adjustment, including three-dimensional positional adjustment and leveling, of the transmitter and transmission assembly 100. The first beam 17 is a channel steel with an upward opening.

Alternatively, as shown in fig. 3, the support frame 2 comprises a third telescopic beam 21, a second cross beam 22 and a bearing frame 23, wherein the bottom end of the third telescopic beam 21 is detachably connected to the laboratory floor 400, and the telescopic direction is the vertical direction; the second cross beam 22 is connected to the top of the third telescopic beam 21 and arranged in the horizontal direction; the bearing frame 23 is fixed below the second cross beam 22, the bearing frame 23 is provided with a bearing hole, and the transmission shaft 300 is arranged in the bearing hole in a penetrating manner. The number of the third telescopic beams 21 may be one, so that the third telescopic beams and the second cross beam 22 form a cantilever support, or two third telescopic beams and the second cross beam 22 form a gantry, and the specific number is not limited, and preferably two third telescopic beams can form a stable support for the transmission shaft 300. The bearing holes may connect the two-end drive shaft 300 through ball bearings to facilitate adjustment of the length of the drive shaft 300. The third telescopic beam 21 is identical to the first telescopic beam 15 in the telescopic direction, and can be lifted synchronously or independently for adjusting the height of the bearing hole so as to meet the height requirement of the transmission shaft 300.

Optionally, the movable trolley 1 further comprises a tray 18, and the tray 18 is arranged on the base 11 and is positioned below the two-dimensional horizontal moving platform.

As shown in fig. 2, the tray 18 is a liquid containing tray, the height of the sliding grooves 13 on two sides of the base 11 is higher than the surface of the base 11, and further the tray 18 can be placed below the first guide rail 14 and below the engine and transmission assembly 100 for containing liquid oil in the test process.

Optionally, as shown in fig. 2, the movable trolley 1 further comprises a suspension support platform 19, the suspension support platform 19 is slidably disposed on the first guide rail 14, and the suspension support platform 19 is configured to support the side suspension bracket 700. In this embodiment, the suspended support platform 19 comprises a second rail 191 and a fourth telescopic beam 192, the second rail 191 is slidably connected to one first rail 14, the second rail 191 extends in the first direction, and the length of the second rail 191 is ensured not to affect the position movement of the adjacent first rail 14. The fourth telescoping beam 192 is slidably connected to the second rail 192 and the top of the fourth telescoping beam 192 supports a side suspension bracket 700.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The quick-mounting trolley for the power assembly rack is characterized by comprising two movable trolleys (1) and a support (2), wherein the two movable trolleys (1) are respectively arranged in front of and behind the support (2), an engine and gearbox assembly (100) is mounted on the movable trolley (1) in front of the support, a rear axle assembly (200) is mounted on the movable trolley (1) in rear of the support, a transmission shaft (300) is connected between the engine and gearbox assembly (100) and the rear axle assembly (200), the middle of the transmission shaft (300) is supported on the support (2), and the support (2) is fixed on a floor (400) of a test room;

the movable trolley (1) comprises a base (11), wherein fixing mechanisms (12) are arranged around the base (11) to fix the base (11) on the floor (400) of the laboratory, a two-dimensional horizontal moving platform, a lifting platform and an auxiliary supporting platform are arranged on the base (11), and the lifting platform and the auxiliary supporting platform are arranged on the two-dimensional horizontal moving platform; the engine and gearbox assembly (100) or the rear axle assembly (200) is mounted on the lifting platform, and the auxiliary support platform is configured to support a front hub bearing (500) or a rear hub bearing (600).

2. The powertrain rack quick-assembly trolley according to claim 1, characterized in that the base (11) is provided with two parallel sliding grooves (13), and the sliding grooves (13) are slidably connected with at least three first guide rails (14) to form the two-dimensional horizontal moving platform.

3. The powertrain rack quick-assembly trolley according to claim 2, characterized in that two first telescopic beams (15) are respectively connected to two first guide rails (14) on two sides of the three first guide rails (14) in a sliding manner to form the lifting platform, and two second telescopic beams (16) are connected to the first guide rail (14) in the middle in a sliding manner to form the auxiliary supporting platform.

4. The powertrain rack quick-assembly trolley according to claim 1, characterized in that the fixing means (12) comprise:

a plurality of fixing plates (121), wherein the plurality of fixing plates (121) are arranged on the base (11) at intervals and can be supported on the floor (400) of the test room, and pin holes are formed in the fixing plates (121);

one end of the connecting plate (122) is provided with a pin (1221), and the pin (1221) is matched and connected with the pin hole;

and the bolt (123) penetrates through the connecting plate (122) and is connected with the laboratory floor (400) to fix the fixing plate (121).

5. The powertrain rack quick-assembly trolley as claimed in claim 4, wherein a clamping block (124) is arranged at the front end of the bolt (123), the bolt (123) is in threaded connection with the clamping block (124), and the clamping block (124) can be clamped on the test room floor (400).

6. The powertrain rack quick-assembly trolley according to claim 4, characterized in that the connecting plate (122) is a right-angled zigzag step plate, and the step height of the connecting plate (122) is equal to the thickness of the fixing plate (121).

7. The powertrain rack quick-assembly trolley as claimed in claim 3, wherein the movable trolley (1) further comprises two first cross beams (17), two ends of each first cross beam (17) are respectively connected to the tops of two first telescopic beams (15) on the same side of the two first guide rails (14), and the engine and gearbox assembly (100) is fixed on the two first cross beams (17).

8. The powertrain rack quick-mount trolley according to claim 1, characterized in that the support (2) comprises:

the bottom end of the third telescopic beam (21) is detachably connected to the floor (400) of the laboratory, and the telescopic direction is vertical;

the second cross beam (22) is connected to the top of the third telescopic beam (21) and arranged in the horizontal direction;

bearing frame (23), bearing frame (23) are fixed in the below of second crossbeam (22), bearing frame (23) are equipped with the dead eye, transmission shaft (300) wear to establish in the dead eye.

9. The powertrain rack quick-assembly trolley according to claim 1, characterized in that the movable trolley (1) further comprises a tray (18), the tray (18) being provided on the base (11) and located below the two-dimensional horizontal moving platform.

10. The locomotion assembly gantry quick load trolley according to claim 2, characterized in that the movable trolley (1) further comprises a suspension support platform (19), the suspension support platform (19) being slidingly arranged on the first rail (14), the suspension support platform (19) being configured to support a side suspension bracket (700).

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