Telescopic oil cylinder assembly device

Abstract

The utility model relates to the technical field of hoisting equipment, and discloses a telescopic oil cylinder assembly device. The assembly device comprises a cylinder barrel body, a guide sleeve, a piston rod body and a stroke sensor. A guide sleeve can be arranged at the front end of the cylinder barrel body, the piston rod body can be connected with the cylinder barrel body through the guide sleeve, a stroke measuring block can be arranged at the end, away from the cylinder barrel body, of the piston rod body, and the stroke sensor can be arranged in the guide sleeve and used for measuring the distance between the stroke sensor and the stroke measuring block so as to determine the stroke of the oil cylinder. According to the assembly device, the stroke sensor and the angle sensor are integrally arranged in the outer ring of the guide sleeve of the assembly device, so that the sensors are prevented from being influenced by the external environment, the measurement accuracy is improved, meanwhile, the situation that the sensors are externally arranged on an arm frame is avoided, external object installation and independent support welding are omitted, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a telescopic oil cylinder assembly device. Background Art

[0002] With the diversification, personalization and environmental protection of transportation needs in cargo distribution centers such as ports, railways and highways, the equipment required by ports, railways and highways also needs to have higher performance, efficiency and reliability. As an important handling machinery for ports, railways and highways, the existing technology of the front crane uses a long angle sensor installed between the basic arm and the telescopic arm to sense the stroke and pitch angle of the boom, but the components are prone to wear and tear, and the measurement accuracy error is large through wire drawing measurement, which is easily affected by environmental factors, and the reliability of the measurement accuracy cannot be effectively guaranteed. If the piston rod built-in sensor solution is adopted, the cost is high and maintenance is very inconvenient. Utility Model Content

[0003] In order to overcome the above-mentioned technical problems, the utility model provides a telescopic cylinder assembly device, which integrates the stroke sensor and the angle sensor into the outer ring of the guide sleeve of the assembly device, thereby avoiding the sensor from being affected by the external environment and improving the measurement accuracy. At the same time, it avoids the situation of being placed externally on the arm, eliminating the need for external object installation and separate welding of brackets, thereby reducing costs.

[0004] In order to achieve the above-mentioned object, the utility model provides a telescopic cylinder assembly device, comprising:

[0005] Cylinder body;

[0006] A guide sleeve, the guide sleeve being arranged at the front end of the cylinder body;

[0007] A piston rod body, used to be connected to the cylinder body through the guide sleeve, and a stroke measuring block is provided at one end of the piston rod body away from the cylinder body;

[0008] The stroke sensor is arranged in the guide sleeve and is used to measure the distance with the stroke measuring block to determine the stroke of the oil cylinder.

[0009] Preferably, the assembly device is arranged inside the boom;

[0010] The assembly device also includes an angle sensor for measuring the pitch angle of the boom.

[0011] Preferably, the angle sensor is arranged in the guide sleeve.

[0012] Preferably, the assembly device further includes a controller, which is electrically connected to the stroke sensor and the angle sensor and is used to process the stroke of the cylinder and the pitch angle of the boom.

[0013] Preferably, an oil inlet is provided on the side wall of the cylinder body;

[0014] The assembly device comprises an oil inlet steel pipe assembly, which is arranged on the side wall of the cylinder body and connected to the oil inlet, and is used to provide hydraulic oil to the cylinder through the oil inlet.

[0015] Preferably, the guide sleeve comprises an inner ring and an outer ring, the inner ring is fixedly arranged inside one end of the cylinder body, and the outer ring extends out of the cylinder body.

[0016] Preferably, the outer ring diameter of the guide sleeve is larger than the inner diameter of the cylinder body, and the inner ring diameter of the guide sleeve is smaller than the inner diameter of the cylinder body.

[0017] Preferably, the assembly device further comprises a cylinder control valve group electrically connected to the controller for realizing front and rear buffer control of the cylinder.

[0018] Preferably, the oil cylinder control valve group is arranged on the side wall close to the other end of the cylinder body;

[0019] The oil cylinder control valve group also includes a high-pressure hose, which is arranged on the side wall of the cylinder body and connected to the oil inlet steel pipe assembly.

[0020] Through the above technical scheme, the telescopic cylinder assembly device accurately measures the stroke of the cylinder and the angle of the boom by setting the stroke sensor and the angle sensor in the guide sleeve, thereby improving the work measurement efficiency, avoiding the situation of being placed externally on the boom, eliminating the need for external object installation and separate welding of brackets, and reducing costs; and the oil inlet steel pipe assembly, high-pressure hose, and cylinder control valve group are arranged on the side wall of the cylinder body, and the parts of the assembly device are integrated to improve management efficiency; at the same time, the cylinder control valve group is controlled by the controller to adjust the hydraulic oil flow of the rod chamber and the rodless chamber, so that the control performance of the front and rear buffers of the telescopic cylinder assembly device is greatly improved, ensuring the stability and safety of handling and loading and unloading; the overall structure of the telescopic cylinder assembly device is built into the boom, the boom has a better appearance, the overall structure is not easy to wear and tear, and the management cost is reduced in the long run. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a telescopic cylinder assembly device according to one embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the cylinder body structure of a telescopic oil cylinder assembly device according to one embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of the piston rod structure of a telescopic cylinder assembly according to one embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a guide sleeve of a telescopic oil cylinder assembly device according to an embodiment of the utility model;

[0025] Figure 5 It is a schematic diagram of the position of the sensor of the telescopic cylinder assembly device on the guide sleeve according to one embodiment of the utility model.

[0026] Description of Reference Numerals

[0027] 1. Cylinder body 2. Guide sleeve

[0028] 3. Piston rod body 4. Travel sensor

[0029] 5. Angle sensor 6. Controller

[0030] 7. Oil inlet steel pipe assembly 8. Inner ring

[0031] 9. Outer ring 10. Travel measuring block

[0032] 11. Oil cylinder control valve group 12. High pressure hose

[0033] 13. Oil inlet DETAILED DESCRIPTION

[0034] The specific implementation of the embodiment of the utility model is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model.

[0035] like Figure 1 FIG. 1 is a schematic structural diagram of a telescopic oil cylinder assembly device according to an embodiment of the present utility model; Figure 2 FIG. 1 is a schematic diagram of the cylinder body structure of a telescopic oil cylinder assembly device according to an embodiment of the present utility model; Figure 3 FIG. 1 is a schematic diagram of the piston rod structure of a telescopic oil cylinder assembly according to an embodiment of the present utility model; Figure 1 , Figure 2 as well as Figure 3In the figure, the assembly device includes a cylinder body 1, a guide sleeve 2, a piston rod body 3 and a stroke sensor 4; specifically, a guide sleeve 2 can be provided at the front end of the cylinder body 1, the piston rod body 3 can be connected to the cylinder body 1 through the guide sleeve 2, a stroke measuring block 10 can be provided at the end of the piston rod body 3 away from the cylinder body 1, and the stroke sensor 4 can be arranged in the guide sleeve 2 to measure the distance to the stroke measuring block 10 to determine the stroke of the cylinder.

[0036] Through the above technical solution, the telescopic cylinder assembly device can accurately measure the stroke of the cylinder by setting the stroke sensor in the guide sleeve at the front end of the cylinder body, thereby improving the work measurement efficiency, avoiding the situation of being placed externally on the arm, eliminating the need for external object installation and separate welding of brackets, and reducing costs.

[0037] exist Figure 2 In order to accurately measure the pitch angle of the boom and prevent the measuring sensor from being damaged by the environment, in one embodiment of the utility model, the assembly device is arranged in the boom, and the assembly device also includes an angle sensor 5, so as to achieve accurate measurement of the pitch angle of the boom. In order to manage the assembly device in an integrated manner, reduce costs, and improve measurement accuracy, in one embodiment of the utility model, the position of the angle sensor 5 can be a variety known to those skilled in the art, and the angle sensor 5 can be arranged in the guide sleeve 2.

[0038] exist Figure 1 In order to receive and process the stroke of the cylinder and the pitch angle of the boom and adjust the working mode of the telescopic cylinder assembly, in one embodiment of the utility model, the assembly may also include a controller 6, and the controller 6 may be electrically connected to the stroke sensor 4 and the angle sensor 5 to process the received cylinder stroke and the pitch angle of the boom to achieve the working adjustment of the assembly.

[0039] exist Figure 2 In order to supply oil to the cylinder body 1 and ensure the sliding of the piston rod body 3, in one embodiment of the utility model, an oil inlet 13 can be provided on the side wall of the cylinder body 1, and the assembly device can include an oil inlet steel pipe assembly 7. The position of the oil inlet steel pipe assembly 7 can be a variety of positions known to those skilled in the art. The oil inlet steel pipe assembly 7 can be provided on the side wall of the cylinder body 1 and can be connected to the oil inlet 13, so as to provide hydraulic oil to the oil cylinder through the oil inlet 13.

[0040] like Figure 4 FIG. 1 is a schematic diagram of the structure of a guide sleeve of a telescopic oil cylinder assembly according to an embodiment of the present utility model; Figure 5 The figure shows a schematic diagram of the position of the sensor of the telescopic oil cylinder assembly device on the guide sleeve according to an embodiment of the utility model. Figure 4 and Figure 5In the figure, considering that the guide sleeve 2 maintains the connection between the cylinder body 1 and the piston rod body 3, and also serves as a carrier of the stroke sensor 4 and the angle sensor 5, in one embodiment of the utility model, the guide sleeve 2 may include an inner ring 8 and an outer ring 9. The inner ring 8 may be fixedly arranged inside one end of the cylinder body 1, and the inner ring 8 may be fixedly connected to the cylinder body 1 by setting a thread, while the outer ring 9 may extend out of the cylinder body 1, and the sensor on the outer ring 1 may conveniently detect the stroke of the cylinder and the angle of the arm.

[0041] exist Figure 4 In order to prevent the guide sleeve 2 from entering the cylinder body 1 in the event of a malfunction when the cylinder is working, and to buffer the contact between the cylinder body 1 and the piston rod body 3, in one embodiment of the utility model, the diameter of the outer ring 9 of the guide sleeve 2 should be larger than the inner diameter of the cylinder body 1, and the diameter of the inner ring 8 of the guide sleeve 2 should be smaller than the inner diameter of the cylinder body 1, thereby preventing the guide sleeve 2 from entering the cylinder body 1 and improving the fault tolerance of the guide sleeve 2.

[0042] exist Figure 1 In order to realize the telescopic operation of the telescopic cylinder, the flow rate of hydraulic oil entering the rod chamber and the rodless chamber of the cylinder is adjusted to realize the control of the front and rear buffering of the cylinder. In one embodiment of the utility model, the assembly device may also include a cylinder control valve group 11. The cylinder control valve group 11 can be electrically connected to the controller to adjust the flow rate of hydraulic oil in the rod chamber and the rodless chamber, so that the control performance of the front and rear buffering of the telescopic cylinder assembly device is greatly improved, thereby ensuring the stability and safety of handling and loading and unloading.

[0043] exist Figure 1 In order to integrate the parts of the management assembly device and ensure the delivery of hydraulic oil; in one embodiment of the utility model, the position of the cylinder control valve group 11 can be a variety of positions known to those skilled in the art, and the cylinder control valve group 11 can be arranged on the side wall near the other end of the cylinder body 1. At the same time, the cylinder control valve group 11 can also include a high-pressure hose 12, which can be arranged on the side wall of the cylinder body 1 and connected to the oil inlet steel pipe assembly 7.

[0044] Through the above technical scheme, the telescopic cylinder assembly device accurately measures the stroke of the cylinder and the angle of the boom by setting the stroke sensor and the angle sensor in the guide sleeve, thereby improving the work measurement efficiency, avoiding the situation of being placed externally on the boom, eliminating the need for external object installation and separate welding of brackets, and reducing costs; and the oil inlet steel pipe assembly, high-pressure hose, and cylinder control valve group are arranged on the side wall of the cylinder body, and the parts of the assembly device are integrated to improve management efficiency; at the same time, the cylinder control valve group is controlled by the controller to adjust the hydraulic oil flow of the rod chamber and the rodless chamber, so that the control performance of the front and rear buffers of the telescopic cylinder assembly device is greatly improved, ensuring the stability and safety of handling and loading and unloading; the overall structure of the telescopic cylinder assembly device is built into the boom, the boom has a better appearance, the overall structure is not easy to wear and tear, and the management cost is reduced in the long run.

[0045] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0046] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A telescopic cylinder assembly device, characterized in that: include: Cylinder body; A guide sleeve, the guide sleeve being arranged at the front end of the cylinder body; A piston rod body, used to be connected to the cylinder body through the guide sleeve, and a stroke measuring block is provided at one end of the piston rod body away from the cylinder body; The stroke sensor is arranged in the guide sleeve and is used to measure the distance with the stroke measuring block to determine the stroke of the oil cylinder.

2. The assembly device according to claim 1, characterized in that: The assembly device is arranged inside the boom; The assembly device also includes an angle sensor for measuring the pitch angle of the boom.

3. The assembly device according to claim 2, characterized in that: The angle sensor is arranged in the guide sleeve.

4. The assembly device according to claim 2, characterized in that: The assembly device also includes a controller, which is electrically connected to the stroke sensor and the angle sensor and is used to process the stroke of the cylinder and the pitch angle of the boom.

5. The assembly device according to claim 4, characterized in that: An oil inlet is provided on the side wall of the cylinder body; The assembly device comprises an oil inlet steel pipe assembly, which is arranged on the side wall of the cylinder body and connected to the oil inlet, and is used to provide hydraulic oil to the cylinder through the oil inlet.

6. The assembly device according to claim 1, characterized in that: The guide sleeve comprises an inner ring and an outer ring, wherein the inner ring is fixedly arranged inside one end of the cylinder body, and the outer ring extends out of the cylinder body.

7. The assembly device according to claim 6, characterized in that: The outer ring diameter of the guide sleeve is larger than the inner diameter of the cylinder body, and the inner ring diameter of the guide sleeve is smaller than the inner diameter of the cylinder body.

8. The assembly device according to claim 5, characterized in that: The assembly device also includes a cylinder control valve group, which is electrically connected to the controller and is used to achieve front and rear buffering control of the cylinder.

9. The assembly device according to claim 8, characterized in that: The oil cylinder control valve group is arranged on the side wall close to the other end of the cylinder body; The oil cylinder control valve group also includes a high-pressure hose, which is arranged on the side wall of the cylinder body and connected to the oil inlet steel pipe assembly.

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