Quick-release connecting device for preventing rotation of hydraulic rod

Abstract

The utility model provides a quick-release connecting device for preventing rotation of a hydraulic rod, relates to the technical field of hydraulic cylinder connection, and solves the problems that the existing connecting device of the hydraulic rod is inconvenient to disassemble and assemble, easy to rotate and short in service life. The hydraulic rod connecting end is used for being connected with a hydraulic rod, the push plate connecting end is used for being connected with a push plate, and a first through hole used for being connected with a push plate shaft pin is formed in the push plate connecting end. A threaded hole used for being in threaded connection with the hydraulic rod is formed in the hydraulic rod connecting end, a first groove is formed in the hydraulic rod, a second groove matched with the first groove is formed in the inner wall of the hydraulic rod connecting end, and an inner ring body matched with the first groove and the second groove is arranged in the hydraulic rod connecting end. The hydraulic rod has the advantages of being simple in structure, convenient to disassemble and assemble and capable of effectively preventing the hydraulic rod from rotating and axially moving, prolonging the service life and improving the reliability of equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder connection, in particular to a connecting device of a hydraulic cylinder of a slag discharger in a waste incineration plant. Background Art

[0002] The slag discharger is used to transport solid waste residue after incineration and is a key piece of waste treatment equipment at incineration plants. Its hydraulic cylinder, a key component, plays a crucial role in controlling the operation of the slag discharger. The hydraulic cylinder generates a tremendous thrust, driving the push plate to push the solid waste residue into the slag pool. In existing technology, the hydraulic cylinder and push plate are often connected using a threaded connection.

[0003] However, this design has the following disadvantages:

[0004] 1. When the load of the hydraulic cylinder is unbalanced or the piston is unbalanced, long-term operation may cause the hydraulic rod to rotate and the hydraulic rod to axially displace relative to the connecting device. The rotation of the hydraulic rod may cause wear and damage to the seal, which may lead to leakage of the hydraulic cylinder.

[0005] 2. The hydraulic cylinder is exposed to the harsh environment of high temperature, humidity and dust in the slag discharger for a long time. The threaded connections may be corroded and rusted, causing the threaded connections to stick together tightly and making it difficult to separate the hydraulic rod and the connection device.

[0006] 3. When the slag discharger is blocked, abnormal pulling or pushing force may be generated, which may cause the threaded connection to be subjected to greater stress, resulting in thread deformation and difficulty in separating the hydraulic rod and the connection device. Utility Model Content

[0007] The utility model aims to solve the problems of the existing hydraulic rod connecting device being inconvenient to assemble and disassemble, prone to self-rotation and having a short service life.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A quick-release connection device for preventing a hydraulic rod from rotating, comprising a group of symmetrically arranged connection device bodies, characterized in that: the connection device body comprises a hydraulic rod connection end for connecting to the hydraulic rod and a push plate connection end for connecting to the push plate, the push plate connection end is provided with a first through hole for connecting to the push plate shaft pin; the hydraulic rod connection end is provided with a threaded hole for threaded connection to the hydraulic rod, the hydraulic rod is provided with a first groove, the inner wall of the hydraulic rod connection end is provided with a second groove that cooperates with the first groove, and the hydraulic rod connection end is provided with an inner ring body that cooperates with the first groove and the second groove.

[0010] A further improvement is that the cross section of the hydraulic rod connection end is square.

[0011] A further improvement is that the cross section of the push plate connecting end is arc-shaped and rotates around the pin shaft.

[0012] A further improvement is that the cross section of the inner ring body is rectangular.

[0013] A further improvement is that the inner ring body comprises two symmetrical semicircular rings, wherein the inner ring body is made of a high-hardness material.

[0014] A further improvement is that the axis of the first through hole at the push plate connecting end is perpendicular to the axis of the hydraulic rod in the horizontal plane.

[0015] A further improvement is that the section of the connecting device body is parallel to the diameter line of the threaded hole of the hydraulic rod connecting end and the circular section of the first through hole of the push plate connecting end.

[0016] A further improvement is that: a plurality of second through holes are provided on the connecting device body.

[0017] A further improvement is that a matching bolt is provided on the second through hole, the bolt is threadedly connected to the nut, and the two connecting device bodies are detachably installed through the cooperation of the bolt and the nut.

[0018] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0019] 1. The mating connection between the inner ring body, the groove of the connecting device, and the groove of the hydraulic rod can fix the relative axial displacement of the hydraulic rod and the connecting device. Due to the threaded connection between the hydraulic rod and the connecting device, the rotation of the hydraulic rod will cause relative axial displacement with the connecting device. After limiting the relative axial displacement of the hydraulic rod and the connecting device, the hydraulic rod cannot rotate along the thread, thereby preventing the hydraulic rod from rotating.

[0020] 2. The two symmetrical connecting devices are connected by several bolts. During disassembly, the nuts on one end of the bolts are removed with a gas cutter to separate the two symmetrical connecting devices. The inner ring is then removed, quickly removing the connecting device and the hydraulic rod. This quick-release design effectively addresses corrosion and rust on the threaded connections caused by long-term exposure of hydraulic cylinders to harsh environments.

[0021] 3. The inner ring bears most of the tension or thrust, which can better protect the threaded connection. When abnormal tension or thrust occurs, the inner ring can disperse and buffer the stress, preventing the threaded connection from being deformed by excessive stress, ensuring a reliable connection between the hydraulic rod and the connecting device and facilitating disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 It is a front view structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the top structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the main body of the present invention;

[0026] Figure 4 is a schematic diagram of the inner ring body of the present invention;

[0027] Figure 5 It is a schematic diagram of a hydraulic rod of the present invention.

[0028] Explanation of the reference numerals: connecting device body 1 , inner ring body 2 , bolt 3 , nut 4 , hydraulic rod connecting end 11 , push plate connecting end 12 , threaded hole 13 , second groove 14 , first through hole 15 , second through hole 16 . DETAILED DESCRIPTION

[0029] See Figure 1-Figure 5 As shown, the technical solution adopted in this specific embodiment is: a quick-release connection device for preventing a hydraulic rod from rotating, comprising a group of symmetrically arranged connection device bodies 1, characterized in that: the connection device body 1 comprises a hydraulic rod connection end 11 for connecting to the hydraulic rod and a push plate connection end 12 for connecting to the push plate, the push plate connection end 12 is provided with a first through hole 15 for connecting to the push plate shaft pin; the hydraulic rod connection end 11 is provided with a threaded hole 13 for threaded connection to the hydraulic rod, the hydraulic rod is provided with a first groove, the inner wall of the hydraulic rod connection end 11 is provided with a second groove 14 that cooperates with the first groove, and the hydraulic rod connection end 11 is provided with an inner ring body 2 that cooperates with the first groove and the second groove 14.

[0030] The cross section of the hydraulic rod connecting end 11 is square.

[0031] The cross section of the push plate connecting end 12 is arc-shaped and rotates around the pin shaft.

[0032] The cross section of the inner ring body 2 is rectangular.

[0033] The inner ring body 2 comprises two symmetrical semicircular rings and is made of a high-hardness material.

[0034] The axis of the first through hole 15 of the push plate connecting end 12 is perpendicular to the axis of the hydraulic rod in the horizontal plane.

[0035] The cross section of the connecting device body 1 is parallel to the diameter line of the threaded hole of the hydraulic rod connecting end 11 and the circular cross section of the first through hole 15 of the push plate connecting end 12 .

[0036] Wherein, a plurality of second through holes 16 are provided on the connecting device body 1 .

[0037] The second through hole 16 is provided with a matching bolt 3 , which is threadedly connected to a nut 4 , and the two connecting device bodies 1 can be detachably installed through the cooperation of the bolt 3 and the nut 4 .

[0038] The working principle of the utility model is as follows: when in use, the hydraulic rod is threadedly connected to the hydraulic rod connecting end 11 through the threaded hole 13, and the inner ring body 2 is embedded in the hydraulic rod connecting end 12 and extends into the first groove of the hydraulic rod, which can limit the relative rotation and axial displacement of the hydraulic rod and the connecting device; the push plate is installed in the first through hole 15 through the pin and can rotate relative to it; when disassembly is required, the nut 4 is removed, the bolt 3 is taken out, and the two connecting device bodies 1 can be separated. After taking out the inner ring body 2, the hydraulic rod can be screwed out in reverse. Disassembly is convenient and fast, and it is not easy to damage the thread; the quick-release connecting device has a simple structure and is easy to install and disassemble. It can effectively prevent the hydraulic rod from rotating and axially moving, protect the threaded connection, extend the service life, and improve the reliability of the equipment.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements shall fall within the scope of the present invention as claimed. The scope of protection claimed in the present invention shall be defined by the appended claims and their equivalents. Any details not described in the present invention are well known to those skilled in the art.

Claims

1. A quick-release connection device for preventing a hydraulic rod from rotating, comprising a set of symmetrically arranged connection device bodies, characterized in that: The connecting device body includes a hydraulic rod connecting end for connecting to the hydraulic rod and a push plate connecting end for connecting to the push plate, the push plate connecting end is provided with a first through hole for connecting to the push plate shaft pin; the hydraulic rod connecting end is provided with a threaded hole for threaded connection with the hydraulic rod, the hydraulic rod is provided with a first groove, and the inner wall of the hydraulic rod connecting end is provided with a second groove that cooperates with the first groove, and the hydraulic rod connecting end is provided with an inner ring body that cooperates with the first groove and the second groove.

2. The quick-release connection device for preventing a hydraulic rod from rotating according to claim 1, characterized in that: The cross section of the hydraulic rod connection end is square.

3. The quick-release connection device for preventing a hydraulic rod from rotating according to claim 1, characterized in that: The cross section of the push plate connecting end is arc-shaped and rotates around the pin shaft.

4. The quick-release connection device for preventing a hydraulic rod from rotating according to claim 1, characterized in that: The cross section of the inner ring body is rectangular.

5. The quick-release connection device for preventing a hydraulic rod from rotating according to claim 4, characterized in that: The inner ring body comprises two symmetrical semicircular rings.

6. The quick-release connection device for preventing a hydraulic rod from rotating according to claim 1, characterized in that: The axis of the first through hole at the push plate connecting end is perpendicular to the axis of the hydraulic rod in a horizontal plane.

7. The quick-release connection device for preventing a hydraulic rod from rotating according to claim 1, characterized in that: The section of the connecting device body is parallel to the diameter line of the threaded hole of the hydraulic rod connecting end and the circular section of the first through hole of the push plate connecting end.

8. The quick-release connection device for preventing a hydraulic rod from rotating according to claim 1, characterized in that: The connecting device body is provided with a plurality of second through holes.

9. The quick-release connection device for preventing a hydraulic rod from rotating according to claim 8, characterized in that: The second through hole is provided with a matching bolt, and the bolt is threadedly connected to the nut. The two connecting device bodies can be detachably installed through the cooperation of the bolt and the nut.

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