CN211073280U

CN211073280U - Engine centering device

Info

Publication number: CN211073280U
Application number: CN201921541669.6U
Authority: CN
Inventors: 彭效华
Original assignee: Hubei Daye Hanlong Engine Co ltd
Current assignee: Hubei Daye Hanlong Engine Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-07-24
Anticipated expiration: 2029-09-17

Abstract

The utility model provides an engine centering device, belongs to engine test technical field, this engine centering device, sliding connection's crossbeam on frame base and the frame base, sliding connection has the support unit of adjusting the engine height on the crossbeam, can dismantle the adjustment mechanism I who is connected with regulation engine horizontal position on the support unit, can dismantle the adjustment mechanism II who is connected with regulation engine longitudinal position on the crossbeam, the beneficial effects of the utility model are that, this engine centering device overall structure is simple, and the processing cost is low, and the installation is adjusted conveniently in a flexible way, and the commonality is strong, and the centering is adjusted the precision height, and the centering is adjusted laborsaving and efficient.

Description

Engine centering device

Technical Field

The utility model relates to an engine test technical field especially relates to an engine centering device.

Background

In the engine research and development process, the batch production process and the important part regeneration process, whether the performance of the engine meets the design requirement needs to be tested. When an engine is tested, an engine crankshaft flywheel and a dynamometer main shaft are required to be connected through a coupler, the coaxiality of the crankshaft flywheel and the dynamometer main shaft is required to meet technical requirements, and the numerical range of adjusting the coaxiality is directly related to the accuracy of a test result and influences the service life of the dynamometer. According to the traditional engine adjusting method, slight displacement of an engine is realized by knocking a supporting unit for supporting the engine, and centering adjustment of a crankshaft flywheel of the engine and a rotating shaft of a dynamometer is performed, so that not only is time and labor wasted in adjustment by an operator and low in efficiency, but also knocking force is difficult to control, and the moving position is difficult to control. In order to solve the problem, a plurality of screw rods are arranged under an original supporting leg base to adjust the distance between the supporting legs, but the processing and the installation are troublesome, and the processing cost is increased.

Therefore, how to design a centering device with convenient installation and strong universality can ensure that the position of the engine is more convenient to adjust and the connection precision is higher, which is a place needing improvement in the performance test of the engine at present.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an engine centering device, it is inconvenient to carry out the operation of centering to the engine before mainly having solved current engine performance test, the problem that the regulation precision is low, it is high to have further solved current centering device transformation processing cost, the poor problem of commonality, aim at, through designing an engine centering device, need not to strike and accomplish the position and remove, can be according to the nimble support element who supports the engine of adjustment of the structural style of engine, it is convenient and adjust the precision height to adjust, time saving and labor saving, the adjustment is efficient, and the processing cost is low, therefore, the commonality is strong.

In order to achieve the above object, the present invention provides a technical solution for solving the technical problem: engine centering device, including sliding connection's crossbeam on frame base and the frame base, sliding connection has the support element of adjusting the engine height on the crossbeam, the last adjustment mechanism I that can dismantle and be connected with regulation engine horizontal position of support element, the last adjustment mechanism II that can dismantle and be connected with the regulation engine longitudinal position of crossbeam.

Further, the supporting unit includes sliding base, sleeve, screw rod I and flange, sliding base sliding connection be in on the crossbeam, one side of sliding base with adjustment mechanism I links to each other, sliding base is last to be fixed the sleeve, be provided with in the sleeve with clearance fit's screw rod I, the outer end of screw rod I with flange is fixed to link to each other, flange links to each other with the engine location, still be provided with the regulation on the screw rod I the adjusting nut of flange height, adjusting nut's bottom with telescopic upper end is inconsistent.

Furthermore, the sleeve is provided with a vertical open slot along the length direction of the sleeve, two sides of the vertical open slot are respectively provided with a fixing plate, and the two fixing plates are connected through a bolt fastener in a locking manner.

Further, be provided with locating hole I on the sliding bottom, the crossbeam is provided with bar spout I along its length direction, the cross-section of bar spout I sets up to the type of protruding, sliding connection has connecting bolt in the bar spout I, the connecting bolt tip passes behind the locating hole I through fastening nut fastening and linking to each other.

Further, the crossbeam includes the roof beam body and the fixing base that roof beam body both ends are connected, the fixing base with frame base sliding location links to each other, the one end of fixing base with adjustment mechanism II links to each other.

Further, the frame base includes two parallel longitudinal rails and two parallel connection diaphragms, the connection diaphragm is connected at the tip of two parallel longitudinal rails, be provided with bar spout II along its length direction in the longitudinal rail, the cross-section of bar spout II sets up to the type of protruding, be provided with locating hole II on the fixing base, II sliding connection in the bar spout have connecting bolt, the connecting bolt tip passes behind the locating hole II through fastening nut fastening and linking to each other.

Further, adjustment mechanism I is including cup jointing locating component, screw rod II, rotating flange and connecting plate, cup joint locating component joint location is in on the crossbeam, cup joint locating component female connection has screw rod II, rotating flange is connected to the one end of screw rod II, the other end of screw rod II with the connecting plate rotates and links to each other, the connecting plate with sliding base can dismantle and link to each other.

Further, cup joint locating component includes that internal thread cover and internal thread cover set up fixed jack catch outward, the internal thread cover with II screw-thread fit of screw rod, fixed jack catch joint in the both sides of crossbeam.

Furthermore, one side of the connecting plate is provided with a sleeve joint piece, and the sleeve joint piece is connected with the end part of the screw rod II through a bearing.

Further, adjustment mechanism II includes cup joint locating component screw rod II rotate flange and locating piece, cup joint locating component joint location is in on the frame base, cup joint locating component female connection has screw rod II, the one end connection of screw rod II rotates the flange, the other end of screw rod II pass through the bearing with the locating piece links to each other, the locating piece set up into with the L shape fixture block of fixing base joint.

The utility model has the advantages that:

1. the engine centering device comprises a frame base and a cross beam which is connected with the frame base in a sliding way, a supporting unit is connected with the cross beam in a sliding way and used for supporting and fixing an engine, the centering device is arranged on the corresponding supporting unit through an adjusting mechanism I and used for adjusting the transverse position of the supporting unit on the cross beam, and is arranged on the cross beam through an adjusting mechanism II and used for adjusting the distance between a plurality of cross beams, so that the longitudinal distance between the supporting units is adjusted, the positioning position of the engine is adjusted, the engine can reach the optimal position, the operation is convenient and flexible, the centering precision of the crankshaft flywheel end of the engine and the rotating shaft of the dynamometer is higher, the adjusting mechanism I and the adjusting mechanism II belong to detachable structures, the structure of the dynamometer is not required to be greatly improved, and the position of the supporting unit can be adjusted by installing the adjusting mechanism I and the adjusting mechanism, the method has strong universality and low processing cost.

2. Specifically, the adjusting mechanism I and the adjusting mechanism II are provided with common components, the adjusting mechanism I and the adjusting mechanism II comprise a sleeved positioning component, a screw rod, a rotating flange and a bearing, the sleeved positioning component is in threaded connection with the screw rod and used for positioning the adjusting mechanism I and the adjusting mechanism II, one end of the screw rod is connected with the rotating flange, the other end of the screw rod is connected with a positioning piece through the bearing, the positioning piece in the adjusting mechanism I is a connecting plate, the connecting plate is connected with the bottom of a supporting unit, the screw rod is rotated to move along the length direction of the sleeved positioning component through rotating the rotating flange, so that the connecting plate pushes the supporting unit to move on a cross beam to adjust the transverse position of the supporting unit, the positioning piece in the adjusting mechanism II is a positioning block, the positioning block is clamped with the end part of the cross beam, the screw rod is rotated to, thereby adjusting the longitudinal spacing between the support units. The adjusting mechanism I and the adjusting mechanism II are simple in overall structure, convenient to store and install, convenient and labor-saving to adjust, high in universality and high in adjusting efficiency.

In conclusion, the engine centering device is simple in overall structure, low in machining cost, convenient and flexible to install and adjust, high in universality, centering and adjusting precision, labor-saving in centering and adjusting and high in efficiency.

Drawings

The contents of the various figures of the specification and the labels in the figures are briefly described as follows:

fig. 1 is a top view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic structural diagram of an adjusting mechanism I;

FIG. 4 is a schematic structural diagram of an adjusting mechanism II;

FIG. 5 is a side view of the female positioning member;

FIG. 6 is a left side view of the locating block of FIG. 4;

FIG. 7 is a top view of the cross beam;

the labels in the above figures are: 1. the frame comprises a frame base, 11 longitudinal guide rails, 111 bar-shaped sliding grooves II, 12 connecting transverse plates, 2 cross beams, 21 bar-shaped sliding grooves I, 22 beam bodies, 23 fixing seats, 231 positioning holes II, 3 supporting units, 31 sliding bases, 311 positioning holes I, 32 sleeves, 321 vertical open grooves, 322 fixing plates, 323 bolt fasteners, 33 screw rods I, 34 positioning flanges, 35 adjusting nuts, 4 adjusting mechanisms I, 41 sleeving positioning assemblies, 411 internal thread sleeves, 412 fixing clamping jaws, 42 screw rods II, 43 rotating flanges, 44 connecting plates, 45 sleeving parts, 5 adjusting mechanisms II, 51 positioning blocks.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses specific embodiment does: as shown in fig. 1 and 2, an engine centering device comprises a frame base 1 and a cross beam 2 connected with the frame base 1 in a sliding manner, wherein a supporting unit 3 for adjusting the height of an engine is connected with the cross beam 2 in a sliding manner, an adjusting mechanism I4 for adjusting the horizontal position of the engine is detachably connected with the supporting unit 3, and an adjusting mechanism II 5 for adjusting the longitudinal position of the engine is detachably connected with the cross beam 2. Through installing adjustment mechanism I4 on corresponding support element 3 and being used for adjusting the horizontal position of support element 3 on crossbeam 2, install the interval that is used for adjusting between a plurality of crossbeams 2 on crossbeam 2 through adjustment mechanism II 5, thereby adjust the longitudinal distance between the support element 3, thereby the locating position of engine has been adjusted, can make the engine reach the best position, convenient operation is nimble, it is higher to make engine crankshaft flywheel end and dynamometer rotation axis centering precision, and adjustment mechanism I4 and adjustment mechanism II 5 belong to detachable structure, need not to carry out big improvement to the structure of dynamometer, install adjustment mechanism I4 and adjustment mechanism II 5 in corresponding position as required and can carry out position control to support element 3, its commonality is strong, low in processing cost.

Specifically, as shown in fig. 2, the supporting unit 3 includes a sliding base 31, a sleeve 32, a screw i 33 and a positioning flange 34, the sliding base 31 is slidably connected to the beam 2, one side of the sliding base 31 is connected to an adjusting mechanism i 4, the sleeve 32 is fixed on the sliding base 31, the screw i 33 in clearance fit with the sleeve 32 is arranged in the sleeve 32, the outer end of the screw i 33 is fixedly connected to the positioning flange 34, the positioning flange 34 is fixedly connected to the engine, an adjusting nut 35 for adjusting the height of the positioning flange 34 is further arranged on the screw i 33, the bottom end of the adjusting nut 35 abuts against the upper end of the sleeve 32, and the adjusting nut 35 is rotated to extend or shorten the screw i 33 along the length direction of the sleeve 32, so as to adjust the height of the supporting unit 3, and adjust the centering adjustment of the engine in the height. Specifically, sleeve 32 is provided with vertical open slot 321 along its length direction, the both sides of vertical open slot 321 are provided with fixed plate 322 respectively, link to each other through bolt fastener 323 locking between two fixed plates 322, when the extension length of screw rod I33 needs to be adjusted, bolt fastener 323 can be loosened, make I33 of screw rod and sleeve 32 clearance fit, be convenient for operate adjusting nut 35 and make I33 of screw rod flexible freely, when adjusting the extension length of I33 of screw rod, application bolt fastener 323 locks sleeve 32, make the inner wall of sleeve 32 and I33 of screw rod hold tightly, the effect of further locking has been played, it is more firm to make the engine location.

Specifically, as shown in fig. 1, be provided with locating hole I311 on the sliding bottom 31, crossbeam 2 is provided with bar spout I21 along its length direction, the cross-section of bar spout I21 sets up to the type of protruding font, sliding connection has connecting bolt in bar spout I21, the connecting bolt tip passes behind locating hole I311 and links to each other through the fastening nut fastening, it is more convenient to make the location of sliding bottom 31, and connecting bolt slides and is difficult for losing in bar spout I21, and bar spout I21 of type of protruding font cross-section is spacing to connecting bolt's bolt head, make fastening nut connect make supporting element 3's overall structure more stable after on connecting bolt.

Specifically, as shown in fig. 1 and 7, the beam 2 includes a beam body 22 and a fixing seat 23 connected to two ends of the beam body 22, the fixing seat 23 is connected to the frame base 1 in a sliding and positioning manner, specifically, the frame base 1 includes two parallel longitudinal guide rails 11 and two parallel connecting transverse plates 12, the connecting transverse plates 12 are connected to the ends of the two parallel longitudinal guide rails 11 through bolts, a bar-shaped sliding groove ii 111 is arranged in each longitudinal guide rail 11 along the length direction of the longitudinal guide rail, the cross section of the bar-shaped sliding groove ii 111 is in a convex shape, a positioning hole ii 231 is arranged on the fixing seat 23, a connecting bolt is slidably connected in the bar-shaped sliding groove ii 111, the end of the connecting bolt penetrates through the positioning hole ii 231 and is fastened and connected through a fastening nut, one end of the fixing seat 23 is connected to the adjusting mechanism ii 5, in addition, a support leg is further arranged at the bottom of the frame base 1, a centering block is fixed to the bottom of the support leg, and the centering block.

Specifically, as shown in fig. 3 and 5, the adjusting mechanism i 4 includes a sleeve positioning component 41, a screw rod ii 42, a rotating flange 43 and a connecting plate 44, the sleeve positioning component 41 is clamped and positioned on the beam 2, the sleeve positioning component 41 is internally threaded and connected with the screw rod ii 42, one end of the screw rod ii 42 is connected with the rotating flange 43, the other end of the screw rod ii 42 is rotatably connected with the connecting plate 44, the connecting plate 44 is detachably connected with the sliding base 31, the sleeve positioning component 41 includes an internal thread sleeve 411 and a fixed claw 412 externally arranged on the internal thread sleeve 411, the internal thread sleeve 411 is in threaded fit with the screw rod ii 42, at least two fixed claws 412 are provided, the fixed claws 412 include fixed claws 412 respectively welded and fixed at two ends of the internal thread sleeve 411, the fixed claws 412 are provided with U-shaped plates, and the fixed. In addition, in order to prolong the service life of the adjusting mechanism I4, the internal thread sleeve 411 comprises a positioning sleeve and a connecting sleeve in threaded connection with the positioning sleeve, the outer end of the connecting sleeve is fixed with the positioning sleeve through screws, the service life of the adjusting mechanism I4 can be prolonged by periodically replacing the connecting sleeve, and the maintenance cost of the adjusting mechanism I4 is reduced. Specifically, one side of the connecting plate 44 is provided with a sleeve 45, the sleeve 45 is connected with the end part of the screw II 42 through a bearing, the rotating flange 43 is rotated to enable the screw II 42 to rotate, meanwhile, the connecting plate 44 is not influenced by rotation, the connecting plate 44 can drive the supporting unit 3 to move along the cross beam 2 along with the extension or the shortening of the screw II 42, the engine can be positioned more accurately, the transverse position of the engine can be adjusted, and the transverse direction can be adjusted and centered.

Specifically, as shown in fig. 4, 5 and 6, the adjusting mechanism ii 5 includes the above-mentioned sleeved positioning component 41, a screw rod ii 42, a rotating flange 43 and a positioning block 51, wherein the structures of the sleeved positioning component 41, the screw rod ii 42 and the rotating flange 43 are the same as those in the adjusting mechanism i 4, the sleeved positioning component 41 is clamped and positioned on the frame base 1, the screw rod ii 42 is connected to the sleeved positioning component 41 through an internal thread, one end of the screw rod ii 42 is connected to the rotating flange 43, the other end of the screw rod ii 42 is connected to the positioning block 51 through a bearing, the positioning block 51 is an L-shaped fixture block clamped and connected to the fixing base 23, the positioning block 51 can be free from the influence of rotation while the screw rod ii 42 is rotated by rotating the rotating flange 43, so that the positioning block 51 can drive the cross beam 2 to move along the length direction of the longitudinal guide rail 11 along with the extension or shortening of the screw rod ii 42, thereby adjusting the longitudinal distance between the plurality of supporting units 3, and stably positioning the engine, or adjusting the.

The process of centering and adjusting the flywheel end of the engine crankshaft and the rotating shaft of the dynamometer by using the centering device is as follows: firstly, adjusting the positions of a plurality of supporting units 3 by using an adjusting mechanism I4 and an adjusting mechanism II 5, and fixing the flywheel end of the engine crankshaft on positioning flanges 34 of the plurality of supporting units 3; then, the positions of the engine in the transverse direction and the longitudinal direction are adjusted by respectively using an adjusting mechanism I4 and an adjusting mechanism II 5, the height of the supporting unit 3 is adjusted to adjust the height of the engine in the vertical direction, so that the connecting shaft of the engine and the connecting shaft of the dynamometer bench are adjusted to be within the range of tolerance requirements, and then the position of the centering device is locked; and finally, connecting and fixing the engine connecting shaft and the connecting shaft of the dynamometer bench, and enabling the dynamometer bench to operate.

The foregoing is merely illustrative of some of the principles of the present invention and the description is not intended to limit the invention to the specific constructions and applications shown, so that all modifications and equivalents that may be utilized are within the scope of the invention.

Claims

1. The utility model provides an engine centering device, its characterized in that, sliding connection's crossbeam (2) on frame base (1) and frame base (1), sliding connection has support unit (3) of adjusting the engine height on crossbeam (2), can dismantle on support unit (3) and be connected with adjustment mechanism I (4) of adjusting engine horizontal position, can dismantle on crossbeam (2) and be connected with adjustment mechanism II (5) of adjusting the longitudinal position of engine.

2. The engine centering device of claim 1, wherein: support element (3) include sliding bottom (31), sleeve (32), screw rod I (33) and flange (34), sliding bottom (31) sliding connection be in on crossbeam (2), one side of sliding bottom (31) with adjustment mechanism I (4) link to each other, sliding bottom (31) are gone up fixedly sleeve (32), be provided with in sleeve (32) with clearance fit's screw rod I (33), the outer end of screw rod I (33) with flange (34) are fixed continuous, flange (34) link to each other with the engine location, still be provided with the regulation on screw rod I (33) adjusting nut (35) of flange (34) height, the bottom of adjusting nut (35) with the upper end of sleeve (32) is inconsistent.

3. The engine centering device of claim 2, wherein: the sleeve (32) is provided with a vertical open slot (321) along the length direction thereof, two sides of the vertical open slot (321) are respectively provided with a fixing plate (322), and the two fixing plates (322) are connected with each other in a locking manner through a bolt fastener (323).

4. The engine centering device of claim 2, wherein: be provided with locating hole I (311) on sliding base (31), crossbeam (2) are provided with bar spout I (21) along its length direction, the cross-section of bar spout I (21) sets up to the type of protruding font, sliding connection has connecting bolt in bar spout I (21), the connecting bolt tip passes link to each other through fastening nut fastening behind locating hole I (311).

5. The engine centering device according to any one of claims 2 to 4, characterized in that: crossbeam (2) include roof beam body (22) and fixing base (23) that roof beam body (22) both ends are connected, fixing base (23) with frame base (1) sliding positioning links to each other, the one end of fixing base (23) with adjustment mechanism II (5) link to each other.

6. The engine centering device of claim 5, wherein: frame base (1) includes longitudinal rail (11) and the connection diaphragm (12) of two parallels, connect diaphragm (12) and connect the tip at longitudinal rail (11) of two parallels, be provided with bar spout II (111) along its length direction in longitudinal rail (11), the cross-section of bar spout II (111) sets up to the type of protruding font, be provided with locating hole II (231) on fixing base (23), sliding connection has connecting bolt in bar spout II (111), the connecting bolt tip passes link to each other through the fastening nut fastening behind locating hole II (231).

7. The engine centering device of claim 5, wherein: adjustment mechanism I (4) are including cup jointing locating component (41), screw rod II (42), rotating flange (43) and connecting plate (44), cup joint locating component (41) joint location on crossbeam (2), cup joint locating component (41) female connection has screw rod II (42), rotating flange (43) is connected to the one end of screw rod II (42), the other end of screw rod II (42) with connecting plate (44) rotate and link to each other, connecting plate (44) with sliding bottom (31) can be dismantled continuously.

8. The engine centering device of claim 7, wherein: cup joint locating component (41) and include internal thread cover (411) and internal thread cover (411) fixed jack catch (412) that set up outward, internal thread cover (411) with screw rod II (42) screw-thread fit, fixed jack catch (412) joint is in the both sides of crossbeam (2).

9. The engine centering device of claim 7, wherein: one side of the connecting plate (44) is provided with a sleeve joint piece (45), and the sleeve joint piece (45) is connected with the end part of the screw rod II (42) through a bearing.

10. The engine centering device according to claim 8, wherein the adjusting mechanism II (5) comprises a sleeve positioning component (41), a screw rod II (42), a rotating flange (43) and a positioning block (51), the sleeve positioning component (41) is clamped and positioned on the frame base (1), the sleeve positioning component (41) is in threaded connection with the screw rod II (42), one end of the screw rod II (42) is connected with the rotating flange (43), the other end of the screw rod II (42) is connected with the positioning block (51) through a bearing, and the positioning block (51) is an L-shaped clamping block clamped with the fixing seat (23).