CN108869089B

CN108869089B - Frameless tractor engine support

Info

Publication number: CN108869089B
Application number: CN201810859898.6A
Authority: CN
Inventors: 任勇杰; 陈剑涛; 蔡森远
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2018-08-01
Filing date: 2018-08-01
Publication date: 2020-01-10
Anticipated expiration: 2038-08-01
Also published as: CN108869089A

Abstract

The invention discloses a frameless tractor engine support which is arranged on two sides of a tractor engine in a bilateral symmetry mode. The front bracket connecting counter bore is arranged on the front end face; the cylinder body connecting through holes are uniformly arranged on the inner side surface; and at least two oil pan connecting counter bores are uniformly arranged on the bottom surface. The frameless tractor engine bracket is a cast and integrally formed structure, has the characteristics of light weight, high strength and simple structure, has three connecting surfaces which are mutually vertical, is completely constrained and is stressed in a balanced manner, and has the advantages of reduced amplitude and difficult failure of the bracket connecting function under the same vibration excitation.

Description

Frameless tractor engine support

Technical Field

The invention relates to the field of engine manufacturing, in particular to a frameless tractor engine support.

Background

The large-scale tractors in China mostly adopt a frameless structure, namely, a frameless tractor frame is formed by directly connecting a tractor front bracket, an engine and shells of all parts of a tractor transmission system together to form a frame; at present, the front bracket of the frameless tractor and the front end of an engine are connected with three modes: the first mode is that the front bracket is singly connected with the oil pan, the second mode is that the front bracket is simultaneously connected with the oil pan and the cylinder body, and the third mode is that the front bracket is simultaneously connected with the oil pan and a bracket assembled on the cylinder body; in the third mode, the fastening bolt of the bracket fails due to the fact that the tractor is impacted and twisted when working in uneven fields, the failure can cause the cylinder body to be mechanically connected with the front tractor, and the soft gasket between the cylinder body and the oil pan is easy to compress and deform or crush under the action of external impact, so that sealing failure is caused, and engine oil leakage faults occur.

The prior art has the following defects:

1. the connecting strength of the bracket is insufficient, and the mechanical connecting function of the bracket is easy to lose efficacy;

2. the bracket is respectively connected with the cylinder body and the front bracket, does not form an organic whole, is not related to the oil pan gasket and has no protection effect on the oil pan gasket;

the information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a frameless tractor engine support, which has three connecting surfaces which are vertical to each other, complete constraint, balanced stress, small amplitude under the same vibration excitation, difficult failure of the support connecting function, light weight, high strength and simple structure.

In order to achieve the purpose, the invention provides a frameless tractor engine support which is arranged on two sides of a tractor engine in a bilateral symmetry mode. The front bracket connecting counter bore is arranged on the front end face; the cylinder body connecting through holes are uniformly arranged on the inner side surface; and at least two oil pan connecting counter bores are uniformly arranged on the bottom surface.

In a preferred embodiment, the front bracket attachment counterbore is adapted to rigidly couple with a front bracket of a tractor.

In a preferred embodiment, a plurality of cylinder block connecting through holes are provided for rigid connection with an engine block of a tractor.

In a preferred embodiment, at least two oil pan connecting counterbores are used for rigid connection with a tractor engine oil pan.

In a preferred embodiment, the front bracket attachment counterbore and the at least two oil pan attachment counterbores are threaded holes.

In a preferred embodiment, the frameless tractor engine mount further comprises a weight-reducing chamber disposed on an outer side opposite the inner side.

In a preferred embodiment, the thickness increases from the top of the frameless tractor engine support to its bottom surface.

Compared with the prior art, the engine bracket of the frameless tractor has the following beneficial effects: the support has increased the connection function with the oil pan, has increased the removal restraint under the stress state simultaneously, and this restraint makes the support atress more balanced, under same vibration excitation, the amplitude reduces, the function is difficult for becoming invalid to the leg joint. After support and cylinder block and oil pan rigid connection, form the surrounding state to the oil pan gasket from structural the view, the function of oil pan gasket is recovered the sealing function of gasket this position, no longer bears extra load, the resilience interval that the gasket used receives protection, sealing function is difficult for becoming invalid by original sealed and bearing to solved soft oil pan gasket and leaded to sealed the inefficacy machine oil leakage trouble of appearing by compressive deformation or conquassation. The bracket connects the front bracket, the oil pan and the cylinder body which are separated relatively with each other to form a whole, so that the strength of the girder of the frameless tractor is further improved, the torsion resistance is further improved, and the adaptability of the tractor to the operation terrain is wider.

Drawings

FIG. 1 is a schematic front view of a frameless tractor engine mount according to an embodiment of the present invention.

Fig. 2 is a schematic bottom view of a frameless tractor engine mount according to an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view in the direction a-a of an frameless tractor engine mount according to an embodiment of the present invention.

Fig. 4 is a left side schematic view of a frameless tractor engine mount according to an embodiment of the present invention.

FIG. 5 is a schematic cross-sectional view in the direction B-B of an frameless tractor engine mount according to one embodiment of the present invention.

FIG. 6 is a back schematic view of a frameless tractor engine mount according to one embodiment of the present invention.

Fig. 7 is a schematic view of the connection of a frameless tractor engine support to the cylinder block, oil pan and oil pan gasket according to an embodiment of the present invention.

Description of the main reference numerals:

1-front end face, 11-front bracket connecting counter bore, 2-inner side face, 21-cylinder body connecting through hole, 3-bottom face, 31-oil pan connecting counter bore, 4-outer side face, 41-weight reduction cavity, 10-frameless tractor engine support, 20-cylinder body, 30-oil pan, 31-oil pan gasket.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Fig. 1 is a front view schematically showing an engine bracket of a frameless tractor according to an embodiment of the present invention, as shown in fig. 1 to 6. Fig. 2 is a schematic bottom view of a frameless tractor engine mount according to an embodiment of the present invention. Fig. 3 is a schematic cross-sectional view in the direction a-a of an frameless tractor engine mount according to an embodiment of the present invention. Fig. 4 is a left side schematic view of a frameless tractor engine mount according to an embodiment of the present invention. FIG. 5 is a schematic cross-sectional view in the direction B-B of an frameless tractor engine mount according to one embodiment of the present invention. FIG. 6 is a back schematic view of a frameless tractor engine mount according to one embodiment of the present invention. A frameless tractor engine mount 10 according to a preferred embodiment of the present invention is divided into two left and right parts, which are symmetrically disposed at both sides of a tractor engine.

In some embodiments, the left and right frameless tractor engine mounts 10 include a front face 1, an inner side face 2, and a bottom face 3, and the front face 1, inner side face 2, and bottom face 3 are perpendicular to each other. A front bracket connecting counter bore 11 is arranged on the front end face 1, and the front bracket connecting counter bore 11 is provided with threads and is used for being rigidly connected with a front bracket of a tractor through bolts. A plurality of cylinder block attachment through holes 21 are uniformly provided on the inner side face 2 for rigid attachment to the engine block of the tractor by bolts. And at least two oil pan connecting counterbores 31 are arranged uniformly on the bottom surface 3, the oil pan connecting counterbores 31 likewise being threaded bores which likewise serve for the rigid connection by means of bolts to the tractor engine oil pan.

Fig. 7 is a schematic view showing the connection of the frameless tractor engine support 10 to the cylinder block, the oil pan, and the oil pan gasket according to the embodiment of the present invention, as shown in fig. 7. In some embodiments, the front end surface 1, the inner side surface 2, and the bottom surface 3 of the frameless tractor engine support 10 of the present embodiment are perpendicular to each other, and are rigidly connected to the front bracket of the tractor, the two sides of the engine block 20, and the oil pan 30 of the engine, respectively, so that the frameless tractor engine support 10 is completely constrained in three aspects, is uniformly stressed, and is less prone to lose its support connection function under the same vibration excitation. Simultaneously, the oil pan gasket 301 does not bear weight any more and has a sealing function, so that the oil leakage fault caused by sealing failure due to compression deformation or crushing is avoided.

In some embodiments, the frameless tractor engine mount 10 further includes a weight-reducing chamber 41 disposed on the outer side 4 opposite the inner side 2, the outer side 4 being a non-mounted surface, and the weight-reducing chamber 41 being disposed in a region that is less stressed, to reduce weight and cost. The thickness of the engine bracket 10 of the frameless tractor gradually increases from the top end to the bottom surface 3, so that the design also meets the stress requirement and simultaneously considers the weight and the economy.

In conclusion, compared with the prior art, the engine bracket of the frameless tractor has the following advantages: the support has increased the connection function with the oil pan, has increased the removal restraint under the stress state simultaneously, and this restraint makes the support atress more balanced, under same vibration excitation, the amplitude reduces, the function is difficult for becoming invalid to the leg joint. After support and cylinder block and oil pan rigid connection, form the surrounding state to oil pan 30 gasket from structural view, the function of oil pan gasket is recovered the sealing function of gasket this time by original sealed and bearing, no longer bears extra load, the resilience interval that the gasket used receives protection, sealing function is difficult for becoming invalid to solved soft oil pan gasket and leaded to sealed the inefficacy to appear the machine oil seepage trouble by compression deformation or conquassation. The bracket connects the front bracket, the oil pan and the cylinder body which are separated relatively with each other to form a whole, so that the strength of the girder of the frameless tractor is further improved, the torsion resistance is further improved, and the adaptability of the tractor to the operation terrain is wider.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The utility model provides a no posture tractor engine support, its bilateral symmetry sets up the both sides at the tractor engine, its characterized in that, no posture tractor engine support includes:

the front end face, the inner side face and the bottom face are mutually vertical;

the front bracket is connected with a counter bore which is arranged on the front end surface;

a plurality of cylinder block connecting through holes uniformly provided on the inner side surface; and

at least two oil pan connecting counter bores which are uniformly arranged on the bottom surface;

the front bracket connecting counter bore is used for being rigidly connected with a front bracket of a tractor, the cylinder block connecting through holes are used for being rigidly connected with an engine cylinder block of the tractor, and the at least two oil pan connecting counter bores are used for being rigidly connected with an engine oil pan of the tractor;

the front bracket connecting counter bore and the at least two oil pan connecting counter bores are threaded holes;

wherein the thickness of the frameless tractor engine mount gradually increases from the top end thereof to the bottom surface thereof.

2. The frameless tractor engine mount of claim 1, further comprising a weight-reducing chamber disposed on an exterior side opposite the interior side.