Shell end cover of hydraulic power steering machine

Abstract

The utility model relates to a hydraulic power steering machine shell end cover, which belongs to the technical field of steering machine shell end covers and comprises an end cover body, a reinforcing component used for reinforcing integral rigidity and strength is mounted on the outer side of the end cover body, and four bolt holes are uniformly distributed at the top of the end cover body. Four positioning protrusions which are evenly distributed are fixed to the bottom of the end cover body, and each reinforcing assembly comprises two reinforcing buffer grooves formed in the top and the bottom of the end cover body respectively and a plurality of supporting rib plates fixed to the inner sides of the reinforcing buffer grooves. A transition cavity used for improving the overall strength is formed between the opposite sides of every two adjacent supporting rib plates, and inclined strip blocks are fixedly connected to the inner sides of the transition cavities. According to the hydraulic power steering machine shell end cover, the overall rigidity and strength of the end cover can be further improved, the end cover can be more conveniently installed through structural arrangement, and therefore the overall bearing strength is improved, and meanwhile installation convenience can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering gear housing end covers, and particularly relates to a hydraulic power steering gear housing end cover. Background Technique

[0002] A hydraulic power steering gear mainly consists of a housing, a housing cover, a screw assembly (including a spool valve, a screw rod and a torsion bar), a rack piston and a toothed sector shaft assembly. The screw assembly, the rack piston and the toothed sector shaft assembly are all arranged in the space formed by the housing and the housing cover. The steering gear housing end cover is a rear cover installed behind the housing of a motor or the like, and its structure and function vary according to the application field. In the production field of hydraulic power steering gears, the end cover is mainly composed of an end cover body.

[0003] According to a hydraulic power steering gear housing end cover disclosed in Chinese Patent Publication No. CN204701654U, its structure is mainly composed of an end cover body. A screw assembly assembly hole is opened on the end cover body, a bolt positioning hole is opened on the end cover body, and a buffer groove is arranged on the inner side of the end cover body. Compared with the prior art, this hydraulic power steering gear housing end cover can effectively reduce the impact of hydraulic oil on the housing end cover and the steering gear housing under special working conditions, and improve the service life of the steering gear.

[0004] However, there are still certain deficiencies in the actual application of this patent. Since the bearing strength of the end cover body needs to be improved through the composition structure of the buffer groove during actual work, and no additional auxiliary support structure is added inside the buffer groove, its main support structure is still through radial rib plates. Although it can improve a certain degree of stiffness, there is still room for improvement in the overall structural layout and bearing strength, resulting in the need to improve the practicality of the existing hydraulic power steering gear housing end cover. Content of the Utility Model

[0005] (1) Technical Problem to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a hydraulic power steering gear housing end cover, which has the advantages of being able to further improve the overall stiffness and strength of the end cover, etc., and solves the problem that there is still room for improvement in the bearing strength of the existing hydraulic power steering gear housing end cover without adding too many structures during actual use.

[0007] (2) Technical Solution

[0008] To achieve the above object of further enhancing the overall stiffness and strength of the end cover, the present utility model provides the following technical solutions: A hydraulic power steering machine housing end cover, including an end cover body, wherein a reinforcing component for strengthening the overall stiffness and strength is installed on the outer side of the end cover body. Four bolt holes are evenly distributed on the top of the end cover body, and four positioning protrusions are fixedly arranged on the bottom of the end cover body in a uniform distribution;

[0009] The reinforcing component includes two reinforcing buffer grooves respectively opened on the top and bottom of the end cover body, and a plurality of support rib plates fixed to the inner side of the reinforcing buffer grooves; an over-transition cavity for enhancing the overall strength is formed between the opposite sides of adjacent two support rib plates, and an inclined strip is fixedly connected to the inner side of the over-transition cavity.

[0010] Further, a boss is fixed to the inner side of the reinforcing buffer groove, an installation cylinder is fixed to the top of the top boss, and a communication hole matching the inner diameter of the installation cylinder is opened between the opposite sides of the two bosses and the top of the end cover body.

[0011] Further, both ends of the installation cylinder are open, and the inside of the installation cylinder is communicated with the inside of the communication hole.

[0012] Further, the opposite sides of the two bosses are respectively located in the same horizontal plane as the top and bottom of the end cover body.

[0013] Further, five support rib plates are fixed to the inner side of the reinforcing buffer groove, the support rib plates are trapezoidal, and the inner side of the reinforcing buffer groove and the outer side of the same-side boss are both fixedly connected to the outer side of the same-side support rib plate.

[0014] Further, the inclined strip is fixed between the opposite sides of adjacent two support rib plates, and the inclined strips on the same side are arranged in a circular shape with the same-side boss as the center.

[0015] Further, the positioning protrusions are circular rings, the inner diameter of the positioning protrusions is larger than the inner diameter of the bolt holes, and the four positioning protrusions are respectively located outside the four bolt holes.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present utility model provides a hydraulic power steering machine housing end cover, which has the following beneficial effects:

[0018] The end cover of the hydraulic power steering machine can further improve the overall stiffness and strength of the end cover through the combined use of the strengthening component on the outer side of the end cover body and the positioning protrusions. At the same time, the layout of the structure enables the end cover to be installed more conveniently, thereby improving the installation convenience while enhancing the overall bearing strength, and effectively improving the practicability of the end cover of the hydraulic power steering machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is the structure of the present invention Figure 1 bottom view schematic diagram;

[0021] Figure 3 is the structure of the present invention Figure 2 front view schematic diagram.

[0022] In the figure: 1 end cover body, 200 strengthening component, 201 strengthening buffer groove, 202 support rib plate, 203 transition cavity, 204 inclined strip block, 3 boss, 4 mounting cylinder, 501 bolt hole, 502 positioning protrusion, 6 communication hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 3 , the present invention provides a technical solution: an end cover of a hydraulic power steering machine, including an end cover body 1, a strengthening component 200 for strengthening the overall stiffness and strength is installed on the outer side of the end cover body 1, four bolt holes 501 are evenly distributed on the top of the end cover body 1, and four positioning protrusions 502 are evenly fixed on the bottom of the end cover body 1; through the combined use of the strengthening component 200 on the outer side of the end cover body 1 and the positioning protrusions 502, the overall stiffness and strength of the end cover can be further improved. At the same time, the layout of the structure enables the end cover to be installed more conveniently, thereby improving the installation convenience while enhancing the overall bearing strength, and effectively improving the practicability of the end cover of the hydraulic power steering machine.

[0025] In this embodiment, the strengthening component 200 is a structure for strengthening the overall end cover through the layout of the structure.

[0026] As Figure 1 , Figure 2 and Figure 3 shown, the strengthening component 200 includes two strengthening buffer grooves 201 respectively opened at the top and bottom of the end cover body 1, and a plurality of support rib plates 202 fixed to the inner side of the strengthening buffer grooves 201; an over-transition cavity 203 for enhancing the overall strength is formed between the opposite sides of two adjacent support rib plates 202, and an inclined strip 204 is fixedly connected to the inner side of the over-transition cavity 203.

[0027] It should be noted that a boss 3 is fixed to the inner side of the strengthening buffer groove 201, an installation cylinder 4 is fixed to the top of the top boss 3, a communication hole 6 matching the inner diameter of the installation cylinder 4 is opened between the opposite sides of the two bosses 3 and the top of the end cover body 1, both ends of the installation cylinder 4 are open, and the inside of the installation cylinder 4 is communicated with the inside of the communication hole 6, so that the screw for installation can be passed between the inside of the installation cylinder 4 and the communication hole 6, facilitating the assembly work.

[0028] In addition, the opposite sides of the two bosses 3 are respectively in the same horizontal plane as the top and bottom of the end cover body 1, so that the boss 3 does not affect the normal installation of the end cover body 1, and the boss 3 can be used to form the internal space of the strengthening buffer groove 201 and support the installation cylinder 4. Five support rib plates 202 are fixed to the inner side of the strengthening buffer groove 201, the support rib plates 202 are trapezoidal, and the inner side of the strengthening buffer groove 201 and the outer side of the same-side boss 3 are both fixedly connected to the outer side of the same-side support rib plate 202, so that the support rib plate 202 can divide the inner side of the strengthening buffer groove 201 into separate over-transition cavities 203.

[0029] At the same time, the inclined strip 204 is fixed between the opposite sides of two adjacent support rib plates 202, and the same-side inclined strips 204 are arranged in a circular shape with the same-side boss 3 as the center. Among them, the number of the same-side inclined strips 204 is also five, so that the inclined strip 204 can divide the over-transition cavity 203 into two triangular spaces again, further enhancing its bearing strength.

[0030] In addition, the positioning protrusion 502 is annular, the inner diameter of the positioning protrusion 502 is larger than the inner diameter of the bolt hole 501, and the four positioning protrusions 502 are respectively located outside the four bolt holes 501. Therefore, by opening four annular grooves on the steering gear housing for the four positioning protrusions 502 to be inserted, the position of the end cover body 1 can be positioned, and then it is convenient to install and fix the end cover body 1.

[0031] The working principle of the above embodiment is:

[0032] During installation, the positioning projection 502 can be used to position the position of the end cover body 1, facilitating the installation and fixation of bolts through the bolt holes 501. During actual use, through the combined use of the support rib plates 202 and the inclined strip blocks 204 inside the strengthening buffer groove 201, the interior of the strengthening buffer groove 201 can be divided into triangular spaces one by one. Furthermore, through the layout of the structure, its bearing capacity can be effectively improved, so that the overall stiffness and strength of the end cover body 1 are both improved to a certain extent, facilitating long-term stable use.

[0033] Compared with the prior art, for this hydraulic power steering machine housing end cover, through the combined use of the strengthening component 200 on the outer side of the end cover body 1 and the positioning projection 502, the overall stiffness and strength of the end cover can be further improved. At the same time, through the layout of the structure, the end cover can be installed more conveniently. Thus, while the overall bearing strength is improved, the installation convenience can also be improved, effectively enhancing the practicality of this hydraulic power steering machine housing end cover, and solving the problem that there is still a certain room for improvement in the bearing strength of the existing hydraulic power steering machine housing end cover without adding too many structures during actual use.

[0034] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A hydraulic power steering housing end cover, comprising an end cover body (1), characterized in that: A reinforcing assembly (200) for enhancing overall rigidity and strength is installed on the outer side of the end cover body (1); four bolt holes (501) are evenly distributed on the top of the end cover body (1); and four positioning protrusions (502) are evenly distributed and fixed on the bottom of the end cover body (1); The reinforcement assembly (200) comprises two reinforcement buffer grooves (201) respectively provided at the top and bottom of the end cover body (1), and a plurality of support ribs (202) fixed to the inner side of the reinforcement buffer grooves (201); a transition cavity (203) for improving the overall strength is formed between the opposite sides of two adjacent support ribs (202), and an inclined bar block (204) is fixedly connected to the inner side of the transition cavity (203).

2. The hydraulic power steering housing end cover according to claim 1, characterized in that: A boss (3) is fixed on the inner side of the reinforced buffer groove (201), a mounting tube (4) is fixed on the top of the boss (3), and a connecting hole (6) matching the inner diameter of the mounting tube (4) is provided between the opposite sides of the two bosses (3) and the top of the end cover body (1).

3. The hydraulic power steering housing end cover according to claim 2, characterized in that: Both ends of the installation tube (4) are open, and the interior of the installation tube (4) is connected to the interior of the communication hole (6).

4. The hydraulic power steering housing end cover according to claim 2, characterized in that: The opposite sides of the two bosses (3) are respectively located in the same horizontal plane as the top and bottom of the end cover body (1).

5. The hydraulic power steering housing end cover according to claim 2, characterized in that: Five supporting ribs (202) are fixed on the inner side of the reinforced buffer groove (201), the supporting ribs (202) are trapezoidal, and the inner side of the reinforced buffer groove (201) and the outer side of the boss (3) on the same side are fixedly connected to the outer side of the supporting ribs (202) on the same side.

6. The hydraulic power steering housing end cover according to claim 2, characterized in that: The inclined strip blocks (204) are fixed between opposite sides of two adjacent supporting ribs (202), and the inclined strip blocks (204) on the same side are arranged in a circle with the boss (3) on the same side as the center.

7. The hydraulic power steering housing end cover according to claim 1, characterized in that: The positioning protrusion (502) is in the shape of a circular ring, the inner diameter of the positioning protrusion (502) is larger than the inner diameter of the bolt hole (501), and the four positioning protrusions (502) are respectively located outside the four bolt holes (501).

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