阅读说明：本技术 一种动力头减速机及桩机 (Power head speed reducer and pile machine ) 是由 张涛 贾广利 赵慧 于 2019-10-22 设计创作，主要内容包括：本发明公开了一种动力头减速机及桩机,涉及工程机械技术领域。包括减速机本体,以及通过连接法兰与所述减速机本体连接的壳体,所述壳体内空间与所述减速机本体内空间连通,所述壳体内设置有花键套,所述减速机本体包括齿轮组件,所述花键套用于将所述齿轮组件与电机传动连接。能够提升桩机使用时的稳定性,进而提升工作效率。(The invention discloses a power head speed reducer and a pile machine, and relates to the technical field of engineering machinery. The gear reducer comprises a speed reducer body and a shell connected with the speed reducer body through a connecting flange, the inner space of the shell is communicated with the inner space of the speed reducer body, a spline sleeve is arranged in the shell, the speed reducer body comprises a gear assembly, and the spline sleeve is used for connecting the gear assembly with a motor in a transmission manner. Stability when can promote the stake machine use, and then promote work efficiency.)

1. The utility model provides a unit head speed reducer, its characterized in that, including the speed reducer body to and through flange with this body coupling's of speed reducer casing, casing inner space with speed reducer body inner space intercommunication, be provided with the spline housing in the casing, the speed reducer body includes the gear assembly, the spline housing be used for with the gear assembly is connected with motor drive.

2. The power head speed reducer of claim 1, further comprising a rotation speed sensor disposed on the housing, wherein a plurality of grooves are annularly and uniformly distributed on the spline housing outer ring, and the rotation speed sensor faces the grooves.

3. The power head reducer of claim 2, wherein an adapter is disposed on the housing, and the rotational speed sensor is removably coupled to the housing via the adapter.

4. The power head speed reducer of claim 1, wherein a support portion is further disposed within the housing, and the support portion is rotatably connected to the spline housing via a bearing.

5. The power head reducer of claim 4, wherein the support portion is provided with a plurality of vias.

6. The power head speed reducer of claim 1, wherein a filter plug is further disposed at an end of the housing away from the speed reducer body, and the filter plug is communicated with the housing through a vent pipe.

7. The power head reducer of claim 1, wherein the housing comprises a cylindrical barrel and a connecting seat, the cylindrical barrel and the connecting seat being transitionally connected by an arc surface.

8. The power head reducer of claim 7, wherein the connecting seat and the connecting flange are fixedly connected by bolts.

9. The power head reducer of any of claims 1-8, wherein the housing is a cast steel material.

10. A pile machine characterized by comprising the power head reducer of any one of claims 1-9.

Technical Field

The invention relates to the technical field of engineering machinery, in particular to a power head speed reducer and a pile driver.

Background

The power head speed reducer is a driving device of the power head of the pile machine, the speed reducer is lubricated by gear oil, and the oil temperature rises higher after the pile machine works circularly and continuously due to poor working conditions of the pile machine. When the oil continuously runs, the oil expands under the action of high oil temperature, the liquid level rises, and oil leakage from the oil plug is easy to occur.

Disclosure of Invention

The invention aims to provide a power head speed reducer and a pile driver, which can improve the stability of the pile driver in use and further improve the working efficiency.

The embodiment of the invention is realized by the following steps:

in one aspect of the embodiment of the invention, the power head speed reducer comprises a speed reducer body and a shell connected with the speed reducer body through a connecting flange, wherein the space in the shell is communicated with the space in the speed reducer body, a spline sleeve is arranged in the shell, the speed reducer body comprises a gear assembly, and the spline sleeve is used for connecting the gear assembly with a motor in a transmission manner.

Optionally, the power head reducer further comprises a rotation speed sensor arranged on the shell, a plurality of grooves are uniformly distributed in the spline housing outer ring in an annular mode, and the rotation speed sensor faces the grooves.

Optionally, an adapter is arranged on the shell, and the rotating speed sensor is detachably connected with the shell through the adapter.

Optionally, a support portion is further disposed in the housing, and the support portion is rotatably connected with the spline housing through a bearing.

Optionally, a plurality of vias are disposed on the supporting portion.

Optionally, one end of the casing, which is far away from the speed reducer body, is further provided with a filter plug, and the filter plug is communicated with the casing through a vent pipe.

Optionally, the housing includes a cylindrical barrel and a connecting seat, and the cylindrical barrel and the connecting seat are transitionally connected through an arc curved surface.

Optionally, the connecting seat and the connecting flange are fixedly connected by bolts.

Optionally, the housing is a cast steel material.

In another aspect of the embodiments of the present invention, a pile driver is provided, which includes the power head reducer as described above.

The embodiment of the invention has the beneficial effects that:

according to the power head speed reducer and the pile driver provided by the embodiment of the invention, the connection relation is formed between the speed reducer body and the shell through the connecting flange, so that the space in the shell is communicated with the space in the speed reducer body. When the power head speed reducer is used, gear oil in the speed reducer body is heated and expanded, the increased volume can enter the shell, an external oil can is not needed to expand, the external oil can is prevented from being affected by the outside, and the stability of the power head speed reducer during use is improved. In order to ensure normal transmission between the speed reducer body and the motor, a spline housing is arranged in the shell, so that a gear assembly in the speed reducer body is in transmission connection with the motor through the spline housing, and the stability and reliability of transmission are ensured. Therefore, the stability of the pile machine in use is greatly improved, the probability of interruption due to interference of external factors is reduced, and the improvement of the working efficiency is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a power head reducer according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a housing according to an embodiment of the present invention.

Icon: 100-power head reducer; 105-a bolt; 110-reducer body; 120-a connecting flange; 130-a housing; 132-a support; 1322-a via hole; 134-cylindrical barrel; 136-a connecting seat; 140-spline housing; 142-a groove; 150-a rotational speed sensor; 160-an adapter; 170-a bearing; 180-filter plug; 190-vent pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present embodiment provides a power head reducer 100, including a reducer body 110 and a housing 130 connected to the reducer body 110 through a connecting flange 120, a space in the housing 130 is communicated with a space in the reducer body 110, a spline housing 140 is disposed in the housing 130, the reducer body 110 includes a gear assembly (not shown in fig. 1), and the spline housing 140 is used for driving and connecting the gear assembly with a motor.

First, the connecting flange 120 connects the reducer body 110 and the housing 130, and in order to ensure the sealing performance of the connection, a sealing ring or a gasket may be provided at the connection where the reducer body contacts, so as to ensure the sealing performance of the connection. After the shell 130 is connected with the speed reducer body 110, the space in the shell 130 is communicated with the space in the speed reducer body 110, so that the oil expansion space can be increased, and the stability during transmission is improved.

Secondly, in order to stably connect the motor and the gear assembly in the speed reducer body 110, a spline housing 140 is provided in the housing 130, one end of the spline housing 140 is connected with the output shaft of the motor, and the other end is connected with the gear assembly in the speed reducer body 110, for transmitting the torque between the output shaft of the motor and the gear assembly.

Thirdly, the liquid level of the gear oil added into the speed reducer body 110 is higher than the surface of the gear assembly, and when the gear oil is heated and expanded in the operation process of the speed reducer body 110, the liquid level of the gear oil can be raised into the shell 130, so that the oil is prevented from being sprayed out.

According to the power head speed reducer 100 provided by the embodiment of the invention, the connection relationship between the speed reducer body 110 and the shell 130 is formed through the connecting flange 120, so that the space in the shell 130 is communicated with the space in the speed reducer body 110. When the power head speed reducer 100 is used, and gear oil in the speed reducer body 110 is heated and expanded, the increased volume can enter the shell 130, an external oil can is not needed for expansion, the external oil can is prevented from being affected by the external factors, and the stability of the power head speed reducer 100 in use is improved. In order to ensure normal transmission between the speed reducer body 110 and the motor, a spline housing 140 is arranged in the shell 130, so that a gear assembly in the speed reducer body 110 is in transmission connection with the motor through the spline housing 140, and the stability and reliability of transmission are ensured. Therefore, the stability of the pile machine in use is greatly improved, the probability of interruption due to interference of external factors is reduced, and the improvement of the working efficiency is facilitated.

As shown in fig. 1, the power head reducer 100 further includes a rotation speed sensor 150 disposed on the housing 130, a plurality of grooves 142 are annularly distributed on an outer ring of the spline housing 140, and the rotation speed sensor 150 faces the grooves 142.

Specifically, the spline housing 140 may be an internal spline, and the spline housing 140 may be connected to bear a relatively uniform force and may bear a relatively large load, and the alignment between the shaft-mounted component and the shaft is good, so as to ensure a stable and reliable connection between the motor and the speed reducer body 110. The radially facing groove 142 of the speed sensor 150 is disposed on the housing 130, and the spline housing 140 is a magnetically conductive material, such as alloy steel. Therefore, the rotating speed sensor 150 can detect the rotating speed of the input end of the speed reducer body 110, and the purpose of monitoring the rotating speed of the power head is achieved.

In addition, a temperature sensor may be disposed in the casing 130 for detecting the real-time oil temperature of the gear oil, so that an operator can perform reasonable blending processing according to the oil temperature, thereby preventing the gear oil from being affected by the excessive oil temperature, and being beneficial to prolonging the service life of the reducer body 110.

As shown in fig. 1, an adapter 160 is disposed on the housing 130, and the rotation speed sensor 150 is detachably connected to the housing 130 through the adapter 160.

For example, the adapter 160 and the housing 130 may be in a threaded connection, and the adapter 160 and the rotation speed sensor 150 may also be in a threaded connection, so that the sealing performance between the rotation speed sensor 150 and the housing 130 is enhanced, the rotation speed sensor 150 is also convenient to disassemble, assemble and maintain, and the damage to the rotation speed sensor 150 caused by directly installing the rotation speed sensor 150 on the housing 130 is avoided, and the stability of the rotation speed sensor 150 during use is improved.

As shown in fig. 1, a support portion 132 is further disposed in the housing 130, and the support portion 132 is rotatably connected to the spline housing 140 through a bearing 170.

Specifically, the supporting portion 132 is of an annular structure, and when the supporting portion 132 is installed, the outer ring of the bearing 170 is connected with the supporting portion 132, and the inner ring of the bearing 170 is connected with the spline housing 140, so that straightness of the spline housing 140 under stress is maintained, stress bending deformation is avoided, and transmission is more stable and reliable.

Optionally, as shown in fig. 2, a plurality of through holes 1322 are disposed on the supporting portion 132.

For example, a plurality of through holes 1322 may be uniformly distributed on the supporting portion 132, so that the gear oil in the reducer body 110 can enter the accommodating space of the housing 130 along the through holes 1322 when being heated and expanded. Thus, the oil balance of the gears in the power head reducer 100 is maintained, and the normal transmission of the reducer body 110 is prevented from being affected.

As shown in fig. 1, a filter plug 180 is further disposed at an end of the housing 130 away from the reducer body 110, and the filter plug 180 is communicated with the housing 130 through a vent pipe 190.

Specifically, as the power head reducer 100 continues to operate, the temperature of the gear oil rises, which causes the oil temperature to expand, the liquid level of the gear oil rises, and the pressure of the communication space between the reducer body 110 and the housing 130 becomes large, which is not favorable for stabilizing the inside of the power head reducer 100. The ventilation pipe 190 is used for communicating the housing 130 with the filter plug 180, so that balance between the air pressure inside the reducer body 110 and the atmospheric pressure is maintained, and stability of the oil temperature of the gear is maintained.

In addition, a required filter element can be arranged in the filter plug 180 as required, so that the external atmospheric pressure and the internal atmospheric pressure are kept balanced, but impurities such as external dust cannot enter the shell 130 through the filter plug 180 and the vent pipe 190. Thus, the cleanness of the gear oil is ensured, and the stability of the speed reducer body 110 during operation is improved.

As shown in fig. 2, the housing 130 includes a cylindrical barrel 134 and a connecting seat 136, and the cylindrical barrel 134 and the connecting seat 136 are transitionally connected by a circular arc curved surface.

Thus, be favorable to promoting the joint strength between cylindricality barrel 134 and the connecting seat 136, simultaneously, compare with the form of lug connection, be favorable to increasing the inside accommodation space of casing 130, and then provide bigger oil and rise the space.

As shown in fig. 1 and 2, the coupling holder 136 and the coupling flange 120 are fixedly coupled by the bolts 105.

Thus, the shell 130 and the reducer body 110 can be conveniently disassembled and assembled, the production cost can be reduced, and the connection stability can be improved.

Optionally, the housing 130 is a cast steel material. Therefore, the impact resistance of the shell 130 is improved, the strength of the shell 130 under the vibration of the power head is guaranteed, and the stability in use is improved.

The embodiment of the invention also discloses a pile driver which comprises the power head speed reducer 100. The pile driver comprises the same structure and beneficial effects as the power head speed reducer 100 in the previous embodiment. The structure and beneficial effects of the power head reducer 100 have been described in detail in the foregoing embodiments, and are not described again here.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.