Clamping cylinder special for bucket wheel machine rail clamping device

Abstract

The utility model relates to the technical field of clamping cylinders, in particular to a clamping cylinder special for a bucket wheel machine rail clamping device. Comprising a cylinder sleeve assembly, a piston rod assembly and disc springs. The cylinder sleeve assembly forms an enclosed space, the enclosed space is provided with a first end and a second end which are opposite to each other, and the cylinder sleeve assembly comprises a guide sleeve installed at the first end. The piston rod assembly comprises a piston rod extending into the enclosed space, a piston body fixed to the piston rod and a stop seat fixed to the piston body. The disc spring is arranged on the guide sleeve in a sleeving mode, one end of the disc spring abuts against the stop base, and the other end of the disc spring abuts against the first end of the defined space so as to provide restoring force for the piston body to move in the direction close to the second end; a cavity is formed between the piston body and the second end and communicated with an oil inlet and an oil outlet. The high-integration design is adopted, clamping action is conducted through the disc spring installed in the cylinder barrel, a complex mechanical structure is omitted, and the overall structure is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping cylinders, in particular to a clamping cylinder dedicated to a bucket wheel machine rail clamp. Background Art

[0002] The mechanical structure of the bucket wheel excavator rail clamp is an opening and closing component, and is an indispensable and important component of the bucket wheel excavator rail clamp. The quality of the mechanical structure directly affects the braking effect. There are mainly two types of existing rail clamp mechanical structures. One is that the movable arm is connected to the connecting rod, the counterweight is connected to the counterweight arm, and the hydraulic cylinder is connected to the counterweight arm to achieve clamping and loosening actions. The second is that the movable arm is connected to the cylinder, the movable arm is connected to the connecting rod, and the clamping and loosening actions are achieved by compressing the external spring or releasing the spring force through the action of the hydraulic cylinder. Among them, the hydraulic cylinder used in the bucket wheel excavator rail clamp is an executive component that controls the opening and closing action of the mechanical structure of the rail clamp, and is an indispensable and important component of the bucket wheel excavator rail clamp.

[0003] The actions of the hydraulic cylinder of the rail clamp mainly include: relying on the counterweight block to reset the hydraulic cylinder under the action of its own weight, and the hydraulic cylinder is lifted to achieve extension; the hydraulic cylinder is reset by resetting the external spring, and the hydraulic cylinder is lifted to compress the external spring to achieve extension. The existing bucket wheel excavator rail clamp cylinder structure is relatively complex and the degree of integration is low. Utility Model Content

[0004] In view of the defects of the prior art, the utility model provides a special clamping cylinder for a bucket wheel excavator rail clamp, which adopts a highly integrated design and performs clamping action through a disc spring installed inside the cylinder barrel, eliminating complex mechanical structures and simplifying the overall structure.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is a special clamping cylinder for a bucket wheel excavator rail clamp, which is used for a bucket wheel excavator rail clamp, and includes a cylinder sleeve assembly, a piston rod assembly and a disc spring; the cylinder sleeve assembly forms an enclosed space, and the enclosed space has a first end and a second end facing each other, and the cylinder sleeve assembly includes a guide sleeve installed on the first end; the piston rod assembly includes a piston rod extending into the enclosed space, a piston body fixed to the piston rod, and a stop seat fixed to the piston body; the disc spring is sleeved on the guide sleeve, one end of the disc spring abuts against the stop seat, and the other end of the disc spring abuts against the first end of the enclosed space to provide a restoring force for the piston body to move toward the second end; a cavity is formed between the piston body and the second end, and the cavity is connected to the oil port.

[0006] Furthermore, a first connecting earring is fixed to one end of the piston rod located outside the enclosed space, and the first connecting earring is used to be connected to a clamping arm of a bucket wheel machine rail clamp.

[0007] Furthermore, the cylinder liner assembly includes a first cylinder liner, a pressure cover fixed to one end of the first cylinder liner, a second cylinder liner fixed to the other end of the first cylinder liner, and a tail cover fixed to the second cylinder liner, and the pressure cover, the first cylinder liner, the second cylinder liner and the tail cover form an enclosed space.

[0008] Further, a first sealing assembly is fixed to the piston body, and the first sealing assembly is in sealing contact with the first cylinder sleeve.

[0009] Furthermore, the disc spring is arranged between the guide sleeve and the second cylinder sleeve.

[0010] Further, the diameter of the first cylinder liner is smaller than the diameter of the second cylinder liner.

[0011] Furthermore, the tail cover is fixed with a second connecting earring, and the second connecting earring is used to be connected to the clamping arm of the bucket wheel machine rail clamp.

[0012] Furthermore, a second sealing component is fixed on the gland, and the second sealing component is in sealing contact with the piston rod.

[0013] The beneficial effects of the utility model are as follows: it adopts a highly integrated design, performs clamping action through the disc spring installed inside the cylinder, eliminates the complex mechanical structure, and simplifies the overall structure. In addition, it adopts a built-in disc spring and is a fully enclosed design, which has the advantages of anti-pollution and anti-harsh environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a special clamping cylinder for a bucket wheel machine rail clamp in one embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the use state of a special clamping cylinder for a bucket wheel machine rail clamp in one embodiment of the utility model;

[0016] In the figure:

[0017] 100, cylinder sleeve assembly, 110, guide sleeve, 120, first cylinder sleeve, 130, gland, 131, second sealing assembly, 140, second cylinder sleeve, 150, tail cover, 151, second connecting earring, 160, adapter cover,

[0018] 200, piston rod assembly, 210, piston rod, 211, first connecting earring, 220, piston body, 221, first sealing assembly, 230, stop seat,

[0019] 300, disc spring,

[0020] 400, oil port,

[0021] a, enclosed space, a1, first end, a2, second end, b, cavity,

[0022] 1. Bucket wheel excavator rail clamp. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0024] See also Figure 1 , shows a special clamping cylinder for a bucket wheel excavator rail clamp in one embodiment of the utility model, which is used for a bucket wheel excavator rail clamp 1, and includes a cylinder sleeve assembly 100, a piston rod assembly 200 and a disc spring 300; the cylinder sleeve assembly 100 forms an enclosed space a, and the enclosed space a has a first end a1 and a second end a2 facing each other, and the cylinder sleeve assembly 100 includes a guide sleeve 110 installed on the first end a1; the piston rod assembly 200 includes a piston rod 210 extending into the enclosed space a, a piston body 220 fixed to the piston rod 210, and a stop seat 230 fixed to the piston body 220; the disc spring 300 is sleeved on the guide sleeve 110, one end of the disc spring 300 abuts against the stop seat 230, and the other end of the disc spring 300 abuts against the first end a1 of the enclosed space a to provide a restoring force for the piston body 220 to move toward the second end a2; a cavity b is formed between the piston body 220 and the second end a2, and the cavity b is connected to an oil port 400.

[0025] The above-mentioned clamping cylinder for the bucket wheel excavator rail clamp adopts a highly integrated design, and performs clamping action through the disc spring 300 installed inside the cylinder barrel, eliminating the complex mechanical structure and simplifying the overall structure. In addition, the built-in disc spring 300 is used, and the fully enclosed design has the advantages of anti-pollution and anti-harsh environment.

[0026] In one embodiment, a first connecting earring 211 is fixed to one end of the piston rod 210 located outside the enclosed space a, and the first connecting earring 211 is used to connect to the clamping arm of the bucket wheel machine rail clamp 1.

[0027] In one embodiment, the cylinder sleeve assembly 100 includes a first cylinder sleeve 120, a gland 130 fixed to one end of the first cylinder sleeve 120, a second cylinder sleeve 140 fixed to the other end of the first cylinder sleeve 120, and a tail cover 150 fixed to the second cylinder sleeve 140. The gland 130, the first cylinder sleeve 120, the second cylinder sleeve 140 and the tail cover 150 form an enclosed space. It should be noted that, when specifically connected, the first cylinder sleeve 120 and the second cylinder sleeve 140 can be fixed by the adapter cover 160, that is, the adapter cover 160 is installed at one end of the first cylinder sleeve 120, and the adapter cover 160 is connected and fixed to the second cylinder sleeve 140.

[0028] In one embodiment, a first sealing assembly 221 is fixed to the piston body 220 , and the first sealing assembly 221 is in sealing contact with the first cylinder sleeve 120 .

[0029] In one embodiment, the disc spring 300 is disposed between the guide sleeve and the second cylinder sleeve 140 .

[0030] In one embodiment, the diameter of the first cylinder liner 120 is smaller than the diameter of the second cylinder liner 140 .

[0031] In one embodiment, the tail cover 150 is fixed with a second connecting earring 151 , and the second connecting earring 151 is used to connect with the clamping arm of the bucket wheel machine rail clamp 1 .

[0032] Furthermore, a second sealing assembly 131 is fixed on the gland 130, and the second sealing assembly 212 is in sealing contact with the piston rod 210. In this way, the contact seal between the gland 130 and the piston rod 210 can be effectively achieved to prevent the hydraulic medium from leaking out.

[0033] See also Figure 1 and Figure 2 , Principle description: When the clamping cylinder is in a free state, the disc spring 300 in the second cylinder sleeve 140 is in a tensioned state. When the action needs to be changed, the oil cylinder is compressed by the power station to overcome the elastic force of the disc spring 300. The piston body 220 pushes the stop seat 230 to compress the disc spring 300 until the guide sleeve 110 contacts the rear end of the piston rod 210 and reaches the mechanical limit. On the contrary, the oil port 400 discharges oil, and the stop seat 230 pushes the piston body 220, the piston rod 210, and the first connecting earring 211 to extend under the elastic force of the disc spring 300 until the piston body 220 and the pressure cover 130 are completely in contact and stop.

[0034] It should be noted that the installation method of the above-mentioned special clamping cylinder for the bucket wheel machine rail clamp includes: the first connecting earring 211 and the piston rod 210 are threadedly connected together, the piston rod 210 and the floating piston body 220 with the first sealing component 221 installed on the outside are threadedly connected together, and the end of the first cylinder sleeve 120 is fastened to the pressure cover 130 with the second sealing component 131 by screws. The piston body 220 and the stop seat 230 are connected and fixed by screws. The two ends of the second cylinder sleeve 140 are fixed by screws through the adapter cover 160 and the tail cover 150. The tail cover 150 and the second connecting earring 151 are locked by threads. The guide sleeve 110 is fixed to the tail cover 150 by screws, and the disc spring 300 is arranged in order through the guide sleeve 110.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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.

[0038] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

Claims

1. A special clamping cylinder for a bucket wheel machine rail clamp, used for a bucket wheel machine rail clamp, characterized in that: include A cylinder sleeve assembly is formed with an enclosed space, wherein the enclosed space has a first end and a second end facing each other, and the cylinder sleeve assembly includes a guide sleeve installed at the first end; A piston rod assembly, comprising a piston rod extending into the enclosed space, a piston body fixed to the piston rod, and a stop seat fixed to the piston body; a disc spring, sleeved on the guide sleeve, one end of the disc spring abutting against the stop seat, and the other end of the disc spring abutting against the first end of the enclosed space, so as to provide a restoring force for the piston body to move toward the second end; A cavity is formed between the piston body and the second end, and the cavity is connected with an oil port.

2. The special clamping cylinder for the rail clamp of a bucket wheel machine according to claim 1, characterized in that: A first connecting earring is fixed to one end of the piston rod located outside the enclosed space, and the first connecting earring is used to be connected to the clamping arm of the bucket wheel machine rail clamp.

3. A special clamping cylinder for a bucket wheel machine rail clamp according to claim 1 or 2, characterized in that: The cylinder liner assembly includes a first cylinder liner, a pressure cover fixed to one end of the first cylinder liner, a second cylinder liner fixed to the other end of the first cylinder liner, and a tail cover fixed to the second cylinder liner. The pressure cover, the first cylinder liner, the second cylinder liner and the tail cover form an enclosed space.

4. The special clamping cylinder for the rail clamp of a bucket wheel machine according to claim 3, characterized in that: A first sealing component is fixed to the piston body, and the first sealing component is in sealing contact with the first cylinder sleeve.

5. The special clamping cylinder for the rail clamp of a bucket wheel machine according to claim 3, characterized in that: The disc spring is arranged between the guide sleeve and the second cylinder sleeve.

6. The special clamping cylinder for the rail clamp of a bucket wheel machine according to claim 3, characterized in that: The diameter of the first cylinder liner is smaller than the diameter of the second cylinder liner.

7. The special clamping cylinder for the rail clamp of a bucket wheel machine according to claim 3, characterized in that: The tail cover is fixed with a second connecting earring, and the second connecting earring is used to be connected with the clamping arm of the bucket wheel machine rail clamp.

8. The special clamping cylinder for the rail clamp of a bucket wheel machine according to claim 3, characterized in that: A second sealing component is fixed on the gland, and the second sealing component is in sealing contact with the piston rod.

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