CN218235456U

CN218235456U - Directly link hydraulic pump installation device

Info

Publication number: CN218235456U
Application number: CN202221826619.4U
Authority: CN
Inventors: 郭冬雪; 王启峰; 李海江
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2022-07-16
Filing date: 2022-07-16
Publication date: 2023-01-06
Anticipated expiration: 2032-07-16

Abstract

The utility model discloses a directly link hydraulic pump installation device, set up the installation base at the bell housing top including the level, the top of installation base has opening towards logical groove and the sealing connection of hydraulic pump has a mounting structure, mounting structure is including the casing that can hold the gear end of hydraulic pump, the casing is provided with towards leading to the uncovered of groove, uncovered and logical groove intercommunication and its both sides portion sealing connection are on the installation base, the one end sealing connection that the casing is close to the bell housing has a left side apron, the other end and the end cover sealing connection of hydraulic pump. Through the installation base, the shell isotructure that set up frame structure, solved under the unchangeable circumstances of engine overall dimension, the hydraulic pump is because of the limited problem that can't the dismouting in axial space.

Description

Directly link hydraulic pump installation device

Technical Field

The utility model belongs to the technical field of the hydraulic pump installation, concretely relates to directly link hydraulic pump installation device.

Background

At present, a hydraulic system is generally applied to an engine, a hydraulic pump is a hydraulic element for providing pressurized liquid for hydraulic transmission, and is a pump for converting mechanical energy of the engine into pressure energy of the liquid; the hydraulic pump is a power element of a hydraulic system, is driven by an engine or a motor, sucks oil from a hydraulic oil tank, forms pressure oil, discharges the pressure oil and sends the pressure oil to an execution element. When the hydraulic pump is disassembled, the spline shaft needs to be pulled out of the spline groove, but due to space limitation, the hydraulic pump cannot be disassembled.

Due to space limitation, in order to enable the hydraulic pump to be smoothly disassembled and assembled, the whole machine arrangement scheme is changed at the present stage, or gears are additionally arranged to enable the position of the hydraulic pump to deviate from the position which cannot be disassembled and assembled. However, the method usually sacrifices the compactness of the whole machine arrangement, and the height and the width of the whole machine are increased; and the transmission path of the stress on the gear is increased by adding the intermediate transmission parts such as the gear and the like.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned shortcoming that prior art exists, the to-be-solved technical problem of the utility model is to provide a directly link hydraulic pump structure, solved under the unchangeable condition of engine overall dimension, the hydraulic pump is because of the limited problem of the unable dismouting in axial space.

In order to solve the technical problem, the utility model discloses a level setting is at the installation base at bell housing top, and its structural feature is: the top of installation base has the opening and leads to groove and sealing connection towards the hydraulic pump has mounting structure, mounting structure is including the casing that can hold the gear end of hydraulic pump, the casing is provided with the uncovered that leads to the groove towards, uncovered and lead to groove intercommunication and its both sides portion sealing connection on the installation base, the one end sealing connection that the casing is close to the bell housing has left apron, the other end and the end cover sealing connection of hydraulic pump.

After the structure is adopted, the installation base is arranged at the top of the flywheel shell of the engine, and the installation structure is connected to the top surface of the installation base in a sealing manner, so that the hydraulic pump is ensured to be installed on the flywheel shell; through setting up the casing that uncovered department led to the groove towards the installation base, make its uncovered department and installation base's through-hole intercommunication to do benefit to the flywheel and be connected with the transmission of hydraulic pump, can not increase the spare part of middle transmission such as gear, and ensure that the transmission route of gear atress can not increase, and ensure when the dismouting, upwards hoist mounting structure, demolish the back to the casing from upper portion promptly, can dismantle the hydraulic pump smoothly from the side, broken the method of traditional hydraulic pump axial dismouting.

Preferably, the mounting base comprises a mounting base plate, two end portions of one side of the mounting base plate are respectively connected with a first front connecting plate and a second rear connecting plate which are oppositely arranged, the through groove is arranged as a notch surrounded by the mounting base plate, the first front connecting plate and the second rear connecting plate, a plurality of first front connecting holes are formed in the first front connecting plate, and a plurality of second rear connecting holes which are respectively arranged corresponding to the first front connecting holes are formed in the second rear connecting plate.

Preferably, the casing includes respectively with first preceding connecting plate sealing connection's preceding mounting panel and with second rear connecting plate sealing connection's rear mounting panel, be connected with the arc that holds the gear end of hydraulic pump between preceding mounting panel and the rear mounting panel, the one end that the arc is close to the engine covers there is the left side apron, and other end border is connected with the right side mounting panel, right side mounting panel and end cover sealing connection.

Preferably, a plurality of front mounting holes are formed in the front mounting plate, front mounting bolts penetrate through the front mounting holes, a plurality of rear mounting holes are formed in the rear mounting plate, rear mounting bolts penetrate through the rear mounting holes, the front mounting bolts penetrate through the front mounting holes and the first front connecting holes to connect the front mounting plate with the first front connecting plate, and the rear mounting bolts penetrate through the rear mounting holes and the second rear connecting holes to connect the rear mounting plate with the second rear connecting plate.

Preferably, the end cover is provided with a plurality of first mounting holes, first mounting bolts penetrate through the first mounting holes, the right mounting plate is further provided with a plurality of second mounting holes which correspond to the corresponding first mounting holes, and the first mounting bolts penetrate through the first mounting holes and the second mounting holes to connect the end cover and the right mounting plate.

Preferably, be provided with the tang on the right side mounting panel, tang department installs sealed the pad, be provided with the boss on the end cover, boss and tang phase-match to ensure the sealing connection of right side mounting panel and end cover.

Preferably, the numerical range of the circumference of the cylinder occupied by the circumference of the arc plate is set to be more than one half and less than three quarters, so that the opening of the arc plate faces the mounting base and is communicated with the through hole in the mounting base, and the flywheel is in transmission connection with the hydraulic pump.

Preferably, the housing is in an integral structure of an omega shape, so that the housing is convenient to mount and the strength of the housing is increased.

To sum up, the utility model arranges the installation base on the top of the flywheel casing of the engine, and the installation structure is hermetically connected on the top surface of the installation base, so that the hydraulic pump is installed on the flywheel casing; the omega-shaped shell with the opening facing the mounting base is arranged, so that the opening is communicated with the through hole of the mounting base, the flywheel is in transmission connection with the hydraulic pump, middle transmission parts such as gears and the like are not increased, the transmission path of the stressed gear is ensured not to be increased, and the two side parts of the shell are in sealing connection with the mounting base, so that the oil leakage phenomenon is avoided; the hydraulic pump is convenient to dismount and mount, the mounting base is lifted upwards, namely, the hydraulic pump can be dismounted smoothly from the side after the shell is dismounted from the upper part, the method for axial dismounting and mounting of the traditional hydraulic pump is broken, the compactness of whole machine arrangement is ensured, the height and width of the whole machine are avoided to be increased, parts transmitted in the middle of gears and the like can not be increased, the transmission path of the stress of the gears can not be increased, the direct-connection hydraulic pump device for lateral dismounting and mounting is realized, the engine adopting the device is compact and coordinated in arrangement, and the hydraulic pump can be dismounted conveniently, and the problem that the hydraulic pump cannot be dismounted can not be caused.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a layout view of the gears of the present invention;

fig. 3 is an assembly schematic view of the present invention;

FIG. 4 is a schematic view of a prior art hydraulic pump assembly;

fig. 5 is a top view of fig. 4.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiment of the present invention will be described in detail with reference to fig. 1 to 5.

At present, a hydraulic system is generally applied to an engine, a hydraulic pump is a power element of the hydraulic system, and is an element which is driven by the engine, sucks oil from a hydraulic oil tank, forms pressure oil to be discharged, and sends the pressure oil to an execution element, and the hydraulic pump is used as a steering power assisting device and a power output device and needs to be arranged on an engine body. However, when the hydraulic pump 2 is detached from the engine 1 block, the spline shaft needs to be pulled out from the spline groove, and the boss structure 301 on the transmission case 3 limits the attaching and detaching space of the hydraulic pump 2, so that the hydraulic pump 2 may not be detached. In order to enable the hydraulic pump 2 to be smoothly disassembled and assembled, the overall arrangement scheme of the engine 1 is changed at the present stage, or a gear is added to enable the position of the hydraulic pump 2 to deviate from the position which cannot be disassembled and assembled; however, the method affects the compactness of the whole machine arrangement and increases the height and the width of the whole machine; and the gear and other intermediate transmission parts are added, and the transmission path of the stress on the gear is increased. In order to avoid the problem, the scheme provides a direct connection hydraulic pump 2 mounting device. For convenience of description, a side where the engine is located in fig. 3 is set as a left side, and a side where the transmission is located is set as a right side.

This directly link hydraulic pump installation device includes that the level sets up the installation base 5 at the 4 tops of bell housing of engine 1, the top of installation base 5 has logical groove and sealing connection has mounting structure 6, mounting structure 6 is including the casing that can hold the gear end of hydraulic pump 2, the casing is provided with the uncovered that leads to the groove towards, uncovered and logical groove intercommunication and its both sides portion sealing connection are on installation base 5, the tip sealing connection that the casing is close to bell housing 4 has left cover plate 604, another tip and hydraulic pump 2's end cover 201 sealing connection.

The mounting base 5 can be in a circular or square structure, preferably, the mounting base 5 is in a square or rectangular structure, and the through groove is formed in the center of the mounting base 5, so that the hydraulic pump 2 can be connected with the flywheel conveniently; preferably, installation base 5 includes mounting plate, the both ends of one side of mounting plate, be connected with relative first preceding connecting plate and the second back connecting plate that sets up respectively, lead to the groove and establish to mounting plate, the notch that the connecting plate encloses behind first preceding connecting plate and the second, the opening of notch is towards hydraulic pump 2, has seted up a plurality of first preceding connecting holes on the connecting plate before first, has seted up a plurality of second back connecting holes that correspond the setting with first preceding connecting hole respectively on the connecting plate behind the second.

A plurality of first mounting holes are formed in an end cover 201, facing the engine 1, of the hydraulic pump 2, the first mounting holes are threaded holes, and a first mounting bolt penetrates through each first mounting hole; the end cap 201 is hermetically connected with the mounting structure 6; the mounting structure 6 comprises a front mounting plate 601 and a rear mounting plate 603 which are arranged on the same horizontal plane, an arc plate 602 is connected between the front mounting plate 601 and the rear mounting plate 603, the front mounting plate 601, the arc plate 602 and the rear mounting plate 603 are sequentially connected to form the casing in an omega shape, and the casing can be designed into a split type structure and also can be designed into an integrated structure. The front mounting plate 601 is bent upwards from one side surface thereof to form a fox-shaped arc-shaped plate 602, and then is connected with the rear mounting plate 603, preferably, when the arc-shaped plate 602 is in a semi-cylindrical tubular structure, the numerical range of the arc length occupying the circumference of the cylinder is set to be more than one half and less than three quarters, namely, the arc-shaped plate 602 is not a complete cylindrical arc-shaped plate 602, and is in a state of cutting off a part of the cylindrical arc-shaped plate 602 along a plane parallel to the axis thereof; the arc plate 602 can accommodate the components of the gear end of the hydraulic pump 2; a plurality of front mounting holes are formed in the front mounting plate 601, front mounting bolts penetrate through the front mounting holes, a plurality of rear mounting holes are formed in the rear mounting plate 603, rear mounting bolts penetrate through the rear mounting holes, each front mounting hole is respectively matched with the first front connecting hole, and each rear connecting hole is respectively matched with the second rear connecting hole; preferably, the first front connecting hole and the second rear connecting hole are both provided with threaded holes, the number of the threaded holes is two, and the number of the front mounting hole and the number of the rear mounting hole are two. The front mounting bolt penetrates through the front mounting hole and the first front connecting hole to be connected with the front mounting plate 601 and the first front connecting plate and is in sealing connection with the first front connecting plate, and the rear mounting bolt penetrates through the rear mounting hole and the second rear connecting hole to be connected with the rear mounting plate 603 and the second rear connecting plate and is in sealing connection with the second rear connecting plate.

One end of the arc-shaped plate 602 close to the engine 1 is hermetically covered with a left cover plate 604, and the left cover plate 604 is hermetically connected with the mounting base 5; a right mounting plate 605 is connected to the periphery of one end, close to the gearbox 3, of the arc-shaped plate 602, a spigot is arranged on the right mounting plate 605, a sealing gasket is arranged at the spigot, a boss is arranged on the end cover 201, and the boss is matched with the spigot so as to ensure that the mounting plate is connected with the end cover 201 in a sealing manner; a plurality of second mounting holes corresponding to the corresponding first mounting holes are further formed in the right mounting plate 605, and the first mounting bolts penetrate through the first mounting holes and the second mounting holes to connect the hydraulic pump 2 and the mounting structure 6.

When the hydraulic pump is installed, firstly, an end cover 201 facing an engine 1 of the hydraulic pump 2 is connected with a right mounting plate 605 through a first mounting bolt, a first mounting hole and a second mounting hole, and then the hydraulic pump is fixed by nuts; then hoisting the hydraulic pump 2, aligning the front mounting hole of the front mounting plate 601 with the first front connecting hole of the first front connecting plate, and connecting the front mounting plate 601 with the first front connecting plate by passing a front mounting bolt through the front mounting hole and the first front connecting hole; meanwhile, the rear mounting hole of the rear mounting plate 603 is aligned with the second rear connecting hole of the second rear connecting plate, and the rear mounting plate 603 and the second rear connecting plate are connected by a rear mounting bolt penetrating through the rear mounting hole and the second rear connecting hole, so that the mounting is completed. When the hydraulic pump 2 is dismounted, the front mounting bolt and the rear mounting bolt are dismounted, the mounting structure 6 is lifted upwards by the lifting device, the hydraulic pump 2 is dismounted from the side face, and the hydraulic pump 2 is not interfered with the protruding structure 301 on the gearbox 3 and is convenient to take out. The utility model discloses a top at bell housing 4 sets up the installation base 5 towards the top, preceding mounting panel 601 and the back mounting panel 603 of arc 602 respectively with installation base 5 sealing connection, when the dismouting, as long as demolish arc 602, just can demolish hydraulic pump 2 to one side, the method of 2 axial dismouting of traditional hydraulic pump has been broken, the compactness that the complete machine arranged has been ensured simultaneously, the complete machine height has been avoided, the width increases, can not increase the spare part of middle transmission such as gear, the transmission route of gear atress can not increase yet, a direct connection hydraulic pump 2 structure of side direction dismouting has been realized.

The foregoing is illustrative and explanatory only of the structure of the present invention, and it is intended that those skilled in the art who have the structure described herein be able to make various modifications, additions or substitutions in the same manner as the above-described embodiments without departing from the structure of the present invention or exceeding the scope defined by the claims.

Claims

1. The utility model provides a directly link hydraulic pump installation device, includes that the level sets up installation base (5) at bell housing (4) top, its characterized in that: the top of installation base (5) has opening logical groove and sealing connection of hydraulic pump (2) to have mounting structure (6), mounting structure (6) are including the casing that can hold the gear end of hydraulic pump (2), the casing is provided with the uncovered that leads to the groove towards, uncovered and logical groove intercommunication and its both sides portion sealing connection are on installation base (5), the one end sealing connection that the casing is close to flywheel housing (4) has left apron (604), other end and end cover (201) sealing connection of hydraulic pump (2).

2. A direct connection hydraulic pump mounting device as claimed in claim 1, wherein: the mounting base (5) comprises a mounting base plate, two end parts of one side of the mounting base plate are respectively connected with a first front connecting plate and a second rear connecting plate which are oppositely arranged, the through groove is arranged as a notch surrounded by the mounting base plate, the first front connecting plate and the second rear connecting plate, a plurality of first front connecting holes are formed in the first front connecting plate, and a plurality of second rear connecting holes which are correspondingly arranged with the first front connecting holes are formed in the second rear connecting plate.

3. The direct connection hydraulic pump mounting device of claim 2, wherein: the casing including respectively with preceding mounting panel (601) of first preceding connecting plate sealing connection and with rear mounting panel (603) of second rear connection board sealing connection, be connected with between preceding mounting panel (601) and rear mounting panel (603) and hold curved plate (602) of the gear end of hydraulic pump (2), curved plate (602) are close to the one end cover of engine 1 and are stamped left shroud (604), and other end border is connected with right mounting panel (605), right mounting panel (605) and end cover (201) sealing connection.

4. The direct connection hydraulic pump mounting device of claim 3, wherein: the mounting structure is characterized in that a plurality of front mounting holes are formed in the front mounting plate (601) and front mounting bolts penetrate through the front mounting holes, a plurality of rear mounting holes are formed in the rear mounting plate (603) and rear mounting bolts penetrate through the rear mounting holes, the front mounting bolts penetrate through the front mounting holes and the first front connecting holes to be connected with the front mounting plate (601) and the first front connecting plate, and the rear mounting bolts penetrate through the rear mounting holes and the second rear connecting holes to be connected with the rear mounting plate (603) and the second rear connecting plate.

5. The direct connection hydraulic pump mounting device of claim 3, wherein: the end cover (201) is provided with a plurality of first mounting holes, first mounting bolts penetrate through the first mounting holes, the right mounting plate (605) is further provided with a plurality of second mounting holes which correspond to the corresponding first mounting holes, and the first mounting bolts penetrate through the first mounting holes and the second mounting holes to be connected with the end cover (201) and the right mounting plate (605).

6. The direct connection hydraulic pump mounting device of claim 5, wherein: the right mounting plate (605) is provided with a spigot, the spigot is provided with a sealing gasket, the end cover (201) is provided with a boss, and the boss is matched with the spigot.

7. The direct connection hydraulic pump mounting device of claim 3, wherein: the numerical range of the circumference of the arc-shaped plate (602) occupying the circumference of the cylinder is set to be more than one half and less than three quarters.

8. A direct connection hydraulic pump mounting device as claimed in claim 2, wherein: the shell is of an omega-shaped integrally-formed structure.