A self-propelled power transmission structure for a shelter

Abstract

The utility model discloses a self-propelled power transmission structure for a container, including a motor, an axle frame and wheels arranged at both ends of the axle frame, wherein the axle frame is provided with a differential connected to the wheels in a transmission manner, and the input shaft of the differential is connected to one end of a spline shaft in a transmission manner through a universal joint. Beneficial effects: The self-propelled power transmission structure for a container of the utility model realizes the transmission connection between the motor and the differential through a universal joint, a spline sleeve and a spline shaft. This connection form has low requirements on the accuracy of the motor installation position, reduces the difficulty of motor processing and installation, and the motor does not need to be raised or lowered with the axle, and will not cause the motor to swing up and down, thereby ensuring the stability and safety of the motor operation process. The power transmission structure composed of the universal joint, the spline sleeve and the spline shaft is safe, stable and effective, ensuring that the motor torque output is not affected by the angle change caused by the lifting of the axle, avoiding the rotational resistance caused by insufficient motor installation accuracy, and reducing power loss.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle power structures, in particular to a self-propelled power transmission structure for a square cabin. Background Art

[0002] Quarantine cabins are often large in size and heavy in weight. Short-distance transportation often requires the assistance of cranes or forklifts to assist in loading and unloading, which increases the cost of transportation. In remote suburban areas, it is usually inconvenient to rent cranes or forklifts, and loading and unloading of the cabins becomes a problem. For this reason, designers have designed a self-propelled device specifically for the transportation of cabins. By installing and fixing the cabin on the self-propelled device, the cabin is driven to move by the self-propelled device, achieving the purpose of low-cost transportation of the cabin.

[0003] With the development of self-propelled equipment technology, the research and development of self-propelled equipment has gradually increased. Self-propelled equipment has effectively solved the problem of self-propelled movement of cabins over short distances, promoted the engineering application of self-propelled equipment, and helped to increase the market share of self-propelled equipment.

[0004] At present, the common design method of self-propelled equipment is that the front axle wheels realize steering, and the rear axle wheels provide driving power. In order to make the shelter stable as a whole during use, the front and rear axle assemblies are also designed to be extended and hidden by lifting. After the front and rear axles are fully hidden, the self-propelled equipment can be placed on the ground as a whole, with the wheels off the ground, ensuring the stability and safety of the shelter. When the shelter needs to be moved later, the axle can be controlled to descend so that the wheels touch the ground and lift the self-propelled equipment.

[0005] However, the rear axle drive power structure of self-propelled equipment on the market in the prior art generally adopts a direct-connected transmission method between the motor and the differential. In this method, the motor will swing up and down synchronously with the lifting and lowering of the rear axle assembly, which is not very safe and easily causes the motor installation position accuracy to decrease. The direct-connected transmission method between the motor and the differential has extremely high requirements for the motor installation accuracy. Once the motor installation position accuracy decreases, it is easy to cause the motor output shaft and the differential input shaft to be eccentric, causing rotation resistance and increasing power loss. Based on this, the present invention is designed. Utility Model Content

[0006] The main purpose of the utility model is to propose a self-propelled power transmission structure for a square cabin, aiming to solve the problems existing in the prior self-propelled equipment using direct transmission of a motor and a differential mentioned in the above background technology.

[0007] In order to solve the above problems, the utility model proposes a self-propelled power transmission structure for a square cabin, including a motor, an axle frame and wheels arranged at both ends of the axle frame, the axle frame is provided with a differential connected to the wheel transmission, the input shaft of the differential is connected to one end of the spline shaft through universal joint 2, the other end of the spline shaft is axially slidably inserted into the spline sleeve, the spline sleeve is connected to the motor transmission through universal joint 1, the motor is fixedly mounted on a frame, the frame is hinged to a hydraulic cylinder and one end of a support rod, the other end of the hydraulic cylinder is hinged to the axle frame, and the other end of the support rod is fixedly connected to the axle frame.

[0008] In one embodiment, the frame is not connected to the axle frame.

[0009] In one embodiment, the differential is located in the middle of the axle frame, a shaft cylinder is provided in the middle of the axle frame, and the input shaft of the differential is located in the shaft cylinder.

[0010] In one embodiment, there are multiple hydraulic cylinders and support rods, which are symmetrically distributed on both sides of the shaft tube.

[0011] In one embodiment, the spline shaft and the spline sleeve are connected only by axial sliding.

[0012] In one embodiment, the hydraulic cylinder is actuated to drive the axle frame to rotate around one end of the support rod.

[0013] In one embodiment, the axle frame rotates around one end of the support rod to drive the other end of the spline shaft to move axially in the spline sleeve.

[0014] Beneficial effect: The utility model's self-propelled power transmission structure of the square cabin realizes the transmission connection between the motor and the differential through universal joints, spline sleeves and spline shafts. This connection form has low requirements on the accuracy of the motor installation position, reduces the difficulty of motor processing and installation, and the motor does not need to be raised or lowered with the axle, which will not cause the motor to swing up and down, thereby ensuring the stability and safety of the motor operation process. The power transmission structure composed of universal joints, spline sleeves and spline shafts is safe, stable and effective, ensuring that the motor torque output is not affected by the angle change caused by the lifting of the axle, avoiding the rotational resistance caused by insufficient motor installation accuracy, and reducing power loss. Applying it to self-propelled equipment to replace the existing power transmission structure of the self-propelled equipment can effectively solve the problems existing in the existing self-propelled equipment mentioned in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 The utility model is a structural schematic diagram of a self-propelled power transmission structure of a square cabin.

[0017] The following are the descriptions of the reference numerals:

[0018] 1. Motor; 2. Universal joint 1; 3. Spline sleeve; 4. Spline shaft; 5. Universal joint 2; 6. Shaft cylinder; 7. Support rod; 8. Wheel; 9. Frame; 10. Hydraulic cylinder; 11. Axle frame; 12. Input shaft. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0023] The utility model proposes a self-propelled power transmission structure for a square cabin, which realizes the transmission connection between the motor 1 and the differential through a universal joint, a spline sleeve 3, and a spline shaft 4. This connection form has low requirements on the installation position accuracy of the motor 1, reduces the difficulty of processing and installing the motor 1, and the motor 1 does not need to be raised or lowered with the axle, and will not cause the motor 1 to swing up and down, thereby ensuring the stability and safety of the operation process of the motor 1. The power transmission structure composed of the universal joint, the spline sleeve 3, and the spline shaft 4 is safe, stable, and effective, ensuring that the torque output of the motor 1 is not affected by the angle change caused by the lifting of the axle, avoiding the rotational resistance caused by insufficient installation accuracy of the motor 1, and reducing power loss. Applying it to self-propelled equipment to replace the existing power transmission structure in the self-propelled equipment can effectively solve the problems existing in the existing self-propelled equipment mentioned in the background technology.

[0024] Specifically, in an embodiment of the utility model, as Figure 1 As shown, the self-propelled power transmission structure of the container cabin includes a motor 1, an axle frame 11 and wheels 8 arranged at both ends of the axle frame 11. The axle frame 11 is provided with a differential connected to the wheels 8. The differential drives the wheels 8 to rotate to drive the self-propelled power transmission structure of the container cabin to move forward on the ground.

[0025] In this embodiment, if Figure 1 As shown, the input shaft 12 of the differential is connected to one end of the spline shaft 4 through a universal joint 5, and the other end of the spline shaft 4 is axially slidably inserted into the spline sleeve 3. The spline shaft 4 and the spline sleeve 3 are only axially slidably connected and cannot be rotatably connected. Therefore, the rotation of the spline sleeve 3 can drive the spline shaft 4 to rotate synchronously, and at the same time, the other end of the spline shaft 4 can axially slide in the spline sleeve 3. With this design, the lifting and lowering of the axle frame 11 does not affect the stability of the power transmission of the motor 1.

[0026] In this embodiment, if Figure 1As shown, the spline sleeve 3 is connected to the motor 1 through a universal joint 2, and the motor 1 is fixedly mounted on the frame 9. The frame 9 is not connected to the axle frame 11, and the cabin is fixedly mounted on the frame 9. The frame 9 is hinged with the hydraulic cylinder 10 and one end of the support rod 7. The other end of the hydraulic cylinder 10 is hinged with the axle frame 11, and the other end of the support rod 7 is fixedly connected to the axle frame 11. With this design, the hydraulic cylinder 10 drives the axle frame 11 to rotate around one end of the support rod 7. Specifically, the hydraulic cylinder 10 contracts and drives the axle frame 11 to rotate upward around one end of the support rod 7, so that the axle frame 11 rises and the wheels 8 leave the ground. At this time, the self-propelled power transmission structure of the cabin is placed on the ground and cannot move. On the contrary, the hydraulic cylinder 10 extends and drives the axle frame 11 to rotate downward around one end of the support rod 7, so that the axle frame 11 descends, the wheels 8 touch the ground, and the frame 9 is lifted. At this time, the self-propelled power transmission structure of the cabin can walk on the ground with the help of the wheels 8.

[0027] In this embodiment, the axle frame 11 rotates around one end of the support rod 7, which drives the other end of the spline shaft 4 to move axially in the spline sleeve 3. With this design, the lifting and lowering of the axle frame 11 does not affect the stability of the power transmission of the motor 1. The power transmission structure composed of universal joint 1 2, universal joint 2 5, spline sleeve 3, and spline shaft 4 is safe, stable, and effective, ensuring that the torque output of the motor 1 is not affected by the angle change caused by the lifting and lowering of the axle, avoiding the rotational resistance caused by insufficient installation accuracy of the motor 1, and reducing power loss. In addition, the self-propelled power transmission structure of the cabin realizes the transmission connection between the motor 1 and the differential through universal joint 1 2, universal joint 2 5, spline sleeve 3, and spline shaft 4. This connection form has low requirements on the installation position accuracy of the motor 1, reduces the difficulty of processing and installing the motor 1, and the motor 1 is fixedly installed on the frame 9, does not rise and fall with the axle frame 11, and will not cause the motor 1 to swing up and down, thereby ensuring the stability and safety of the operation process of the motor 1.

[0028] Further, such as Figure 1 As shown, the differential is located in the middle of the axle frame 11, and a shaft cylinder 6 is provided in the middle of the axle frame 11. The input shaft 12 of the differential is located in the shaft cylinder 6. This design is conducive to the smooth rotation of the input shaft 12.

[0029] Further, such as Figure 1 As shown, there are multiple hydraulic cylinders 10 and support rods 7, which are symmetrically distributed on both sides of the shaft tube 6. This design is conducive to the smooth lifting of the frame 9 and the cabin.

[0030] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A self-propelled power transmission structure for a shelter, comprising a motor, a bridge frame and wheels arranged at both ends of the bridge frame, wherein a differential connected to the wheels is arranged on the bridge frame, characterized in that: The input shaft of the differential is transmission connected to one end of the spline shaft through universal joint 2, the other end of the spline shaft is axially slidably inserted into the spline sleeve, the spline sleeve is transmission connected to the motor through universal joint 1, the motor is fixedly mounted on the frame, the frame is hinged to the hydraulic cylinder and one end of the support rod, the other end of the hydraulic cylinder is hinged to the axle frame, and the other end of the support rod is fixedly connected to the axle frame.

2. A self-propelled power transmission structure for a shelter as claimed in claim 1, characterized in that: The frame is not connected to the axle frame.

3. The self-propelled power transmission structure of a shelter as claimed in claim 1, characterized in that: The differential is located in the middle of the axle frame, a shaft cylinder is arranged in the middle of the axle frame, and the input shaft of the differential is located in the shaft cylinder.

4. A self-propelled power transmission structure for a shelter as claimed in claim 3, characterized in that: There are multiple hydraulic cylinders and support rods, which are symmetrically distributed on both sides of the shaft tube.

5. The self-propelled power transmission structure of a shelter as claimed in claim 1, characterized in that: The spline shaft and the spline sleeve are connected only by axial sliding.

6. The self-propelled power transmission structure of a shelter as claimed in claim 1, characterized in that: The action of the hydraulic cylinder drives the axle frame to rotate around one end of the support rod.

7. The self-propelled power transmission structure of a shelter as claimed in claim 6, characterized in that: The axle frame rotates around one end of the support rod to drive the other end of the spline shaft to move axially in the spline sleeve.

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