Hydraulic cylinder base of grate cooler

By designing a hydraulic cylinder base structure including base A and base B, the wear and noise problems caused by the base surface error of the hydraulic cylinder installation are solved, and the precise positioning and stable operation of the hydraulic cylinder are achieved.

CN223177864UActive Publication Date: 2025-08-01HEFEI ZHONGQIANG MACHINERY MANUFACTURING CO LTD
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Patent Information

Application Number
CN202422341584.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2025-08-01
Estimated Expiration
2034-09-25

AI Technical Summary

Technical Problem

Due to the large error in the installation base surface of the existing grate chiller hydraulic cylinder, the hydraulic cylinder wears and breaks, and the connection is not ideal, which can easily lead to wear and noise.

Method used

A hydraulic cylinder base structure including base A and base B is designed, and the hydraulic cylinder is accurately positioned and adjusted by screw connections and eccentric adjustment sleeves to ensure that the hydraulic cylinder is installed in an ideal position.

Benefits of technology

It reduces wear and noise of hydraulic cylinders, and improves the operating stability and service life of hydraulic cylinders.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223177864U_ABST
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Abstract

The utility model discloses a grate cooler hydraulic cylinder base which comprises a base body A and a base body B. The base body A is installed at the output end of a hydraulic cylinder, the base body B is installed at the tail end of the hydraulic cylinder, the base body A and the base body B are connected through a plurality of screws and clamp the hydraulic cylinder between the base body A and the base body B, and connecting lugs are integrally formed or welded to the surface of the base body A and the surface of the base body B. The connecting lugs are fixedly connected to a support of the grate cooler through bolts. The positioning seat is further rotationally connected between the U-shaped supports through a shaft, and the axis of the shaft is perpendicular to the axis space of the stepped hole. The structure capable of adjusting the position of the installed hydraulic cylinder is arranged, so that the stress of the hydraulic rod can be more concentrated in the running direction of the hydraulic rod, and the effects of reducing noise and delaying abrasion are achieved compared with the prior art.
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Description

Technical Field

[0001] The utility model relates to a base, in particular to a grate cooler hydraulic cylinder base. Background Art

[0002] The grate cooler used in cement production processes has a hydraulic cylinder inside for pushing the material. Specifically, the hydraulic cylinder is fixed to the grate cooler frame, and the hydraulic system controller then performs reciprocating linear motion to achieve the pushing of the material. In current manufacturing processes, the grate cooler frame is all welded. Due to the large size of the equipment, the setting of the hydraulic cylinder's mounting base has a large error from the ideal state.

[0003] The wear and breakage of the hydraulic cylinder base of the grate cooler are largely because the hydraulic cylinder is not installed in the ideal position, which causes the hydraulic rod to swing during its telescopic movement, resulting in an unsatisfactory connection between the hydraulic cylinder and the grate cooler hydraulic cylinder base, which easily leads to mutual wear between the two. Utility Model Content

[0004] The purpose of the utility model is to provide a grate cooler hydraulic cylinder base to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A grate cooler hydraulic cylinder base includes a base A and a base B. Base A is installed at the output end of the hydraulic cylinder, and base B is installed at the tail end of the hydraulic cylinder. Base A and base B are connected by multiple screws and clamp the hydraulic cylinder between the two. The surfaces of the base A and the surfaces of the base B are integrally formed or welded with connecting ears, and the connecting ears are fixedly connected to the bracket of the grate cooler by bolts; the base A includes a shaft, a U-shaped bracket, a positioning seat and a step hole. The middle part of the positioning seat is provided with a step hole, and the step hole passes through two opposite sides of the positioning seat. The step formed between the large hole and the small hole of the step hole is used to contact and connect with the edge of the cylinder body at the output end of the hydraulic cylinder, and the small hole of the step hole is used to extend the output shaft of the output end of the hydraulic cylinder; the positioning seat is also connected between the U-shaped brackets by shaft rotation, and the axis of the shaft is perpendicular to the axis of the step hole.

[0007] As a further solution of the present invention: the through holes on the connecting ears for the bolts to pass through are waist-shaped holes distributed along the radial direction of the hydraulic cylinder to be installed.

[0008] As a further solution of the present utility model: The base B includes a dialing screw, a pressing ring, an eccentric adjusting sleeve and a fixing seat. The fixing seat is used to open an installation hole on the side facing the base A. The eccentric adjusting sleeve is installed in the installation hole. The pressing ring presses the eccentric adjusting sleeve in the fixing seat, and the pressing ring and the fixing seat are fixedly connected by screws. The outer surface of the eccentric adjusting sleeve is composed of a section A and a section B. The outer diameter of section A is smaller than that of section B. Section B is rotatably arranged in the installation hole of the fixing seat. Section A passes through the pressing ring. The outer diameter of section A is less than or equal to the inner diameter of the pressing ring, and the inner diameter of the pressing ring is also smaller than the outer diameter of section B. The inner hole diameters of section A and section B are the same and coaxially arranged. The axis of the inner hole of the eccentric adjusting sleeve is eccentrically arranged with the axis of the outer ring of the eccentric adjusting sleeve.

[0009] As a further solution of the present utility model: A threaded hole is opened on the outer surface of the part of section A passing through the pressing ring and is threadedly connected with the dialing screw.

[0010] Compared with the prior art, the beneficial effects of the present utility model are:

[0011] By setting a structure that can adjust the position of the hydraulic cylinder after installation, the present utility model enables the force on the hydraulic rod to be more concentrated in its operating direction, so as to achieve the effects of reducing noise and delaying wear compared with the prior art. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the base of the grate cooler hydraulic cylinder.

[0013] Figure 2 It is a schematic side view structure diagram of the base A in the base of the grate cooler hydraulic cylinder.

[0014] Figure 3 It is a schematic structural diagram of a base B in the base of the grate cooler hydraulic cylinder. Detailed Embodiment

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0016] Embodiment 1

[0017] Please refer to Figures 1 to 3, in the embodiment of the utility model, a base of a grate cooler hydraulic cylinder includes a base A1 and a base B2. The base A1 is installed at the output end of the hydraulic cylinder, and the base B2 is installed at the tail end of the hydraulic cylinder. The base A1 and the base B2 are connected by multiple screws and clamp the hydraulic cylinder therebetween. Connection ears 3 are integrally formed or welded on the surfaces of the base A1 and the base B2. The connection ears 3 are fixedly connected to the bracket of the grate cooler by bolts to fix the hydraulic cylinder relative to the bracket of the grate cooler.

[0018] The through holes for the bolts to pass through on the connection ears 3 can be waist-shaped holes radially distributed along the hydraulic cylinder to be installed. During installation, the bolts pass through the waist-shaped holes and are connected to the threaded holes or welded nuts opened on the base surface.

[0019] The base A1 includes a shaft 11, a U-shaped bracket 12, a positioning seat 13 and a stepped hole 131. A stepped hole 131 is opened in the middle of the positioning seat 13. The stepped hole 131 penetrates through two opposite sides of the positioning seat 13. The step formed between the large hole and the small hole of the stepped hole 131 is used to contact and connect with the edge of the cylinder body at the output end of the hydraulic cylinder. At the same time, the small hole of the stepped hole 131 is used for the output shaft of the output end of the hydraulic cylinder to extend; the positioning seat 13 is also rotatably connected between the U-shaped brackets 12 through the shaft 11, and the axis of the shaft 11 is perpendicular to the axis of the stepped hole 131 in space;

[0020] One end of the shaft 11 is fixedly connected to the side surface of the positioning seat 13 through a pin shaft, and the shaft 11 is rotatably connected to the mounting holes on the U-shaped bracket 12 through bearings, so that the installation angle can be adjusted.

[0021] Screw through holes A15 are opened at positions near the four corners of the positioning seat 13.

[0022] The base B2 can be an ordinary base of a hydraulic cylinder. By adding gaskets between the base B2 and the mounting base surface of the grate cooler bracket and cooperating with the base A1 that can rotate within a certain range, leveling can be achieved.

[0023] Embodiment 2

[0024] Please refer to Figures 1 to 3The base B2 includes a toggle screw 21, a pressure ring 22, an eccentric adjustment sleeve 23 and a fixed seat 24. The fixed seat 24 is used to open a mounting hole on a side facing the base A1, and the eccentric adjustment sleeve 23 is installed in the mounting hole. The pressure ring 22 presses the eccentric adjustment sleeve 23 tightly in the fixed seat 24, and the pressure ring 22 is fixedly connected to the fixed seat 24 by screws; the outer surface of the eccentric adjustment sleeve 23 is composed of section A 231 and section B 232. The outer diameter of section A 231 is smaller than the outer diameter of section B 232. Section B 232 is rotatably arranged in the mounting hole of the fixed seat 24 (grease can be applied on the contact surface during specific installation). Section A 231 is arranged through the pressure ring 22. The outer diameter of section A 231 is less than or equal to the inner diameter of the pressure ring 22, and the inner diameter of the pressure ring 22 is also smaller than the outer diameter of section B 232; the inner hole of section A 231 and the inner hole of section B 232 have the same diameter and are coaxially arranged.

[0025] The fixing seat 24 is provided with screw holes B25 near the four corners; the screw passes through the holes A15 and B25, and both ends of the screw are threadedly connected to corresponding nuts to achieve connection.

[0026] The inner hole axis of the eccentric adjustment sleeve 23 is eccentrically arranged with respect to the outer ring axis of the eccentric adjustment sleeve 23 , that is, the inner hole axis and the outer ring axis of the two are not collinear; when the outer ring of the eccentric adjustment sleeve 23 rotates in the mounting hole of the fixing seat 24, the height of the inner hole can be changed relative to the axial position of the outer ring to facilitate leveling.

[0027] The A section 231 passes through a portion of the outer surface of the pressure ring 22 to form a threaded hole and is threadedly connected to the shift screw 21 for easy manual shifting.

[0028] During the actual installation process, the axial adjustment and radial adjustment of the hydraulic cylinder are included:

[0029] First, radial adjustment is required, that is, to ensure that the axis of the hydraulic cylinder after installation is parallel to its movement direction. With the help of measuring tools, during the actual adjustment process, the screws between the pressure ring 22 and the fixing seat 24 are screwed, and the adjustment screws 21 are manually adjusted to adjust the distance between the two ends of the hydraulic cylinder and the installation base. Because the angle of the positioning seat 13 in the base A1 is variable, only the eccentric adjustment sleeve 23 needs to be adjusted. When the hydraulic cylinder is observed to be parallel to the installation base using a measuring ruler, the screws between the pressure ring 22 and the fixing seat 24 are manually tightened.

[0030] Secondly, based on the assembly composed of the hydraulic cylinder and the base (base A1 and base B2) after the radial adjustment, it is fixedly connected to the installation base surface through the connecting ears 3 on the base A1 and the connecting ears 3 on the base B2. Before fixation, ensure the stable output direction of the hydraulic cylinder through measuring instruments (such as measuring the distance between the hydraulic cylinder and the track of the corresponding pusher at multiple points), and complete the fixation of the axial adjustment. Since the waist-shaped holes are opened on the connecting ears 3, the machining tolerances of the waist-shaped holes and the threaded holes or nuts on the installation base surface can be as large as possible to facilitate installation.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A base of a hydraulic cylinder for a grate cooler, comprising a base A (1) and a base B (2). The base A (1) is installed at the output end of the hydraulic cylinder, and the base B (2) is installed at the tail end of the hydraulic cylinder. The base A (1) and the base B (2) are connected by multiple screws and clamp the hydraulic cylinder therebetween. Connecting ears (3) are integrally formed or welded on the surfaces of the base A (1) and the base B (2), and the connecting ears (3) are fixedly connected to the bracket of the grate cooler by bolts. It is characterized in that, The base A (1) includes a shaft (11), a U-shaped bracket (12), a positioning seat (13) and a stepped hole (131). A stepped hole (131) is formed in the middle of the positioning seat (13), and the stepped hole (131) penetrates through two opposite surfaces of the positioning seat (13). The step formed between the large hole and the small hole of the stepped hole (131) is used for contact connection with the edge of the cylinder block at the output end of the hydraulic cylinder. At the same time, the small hole of the stepped hole (131) is used for the output shaft of the output end of the hydraulic cylinder to extend. The positioning seat (13) is also rotatably connected between the U-shaped brackets (12) through the shaft (11), and the axis of the shaft (11) is spatially perpendicular to the axis of the stepped hole (131).

2. The base of the grate cooler hydraulic cylinder according to claim 1, characterized in that, The through holes on the connecting ear (3) for the bolts to pass through are waist-shaped holes distributed radially along the hydraulic cylinder to be installed.

3. The base of the grate cooler hydraulic cylinder according to claim 1 or 2, characterized in that, The base B (2) includes a toggle screw (21), a compression ring (22), an eccentric adjusting sleeve (23) and a fixed seat (24). The fixed seat (24) is used to open an installation hole on the surface facing the base A (1). The eccentric adjusting sleeve (23) is installed in the installation hole. The compression ring (22) presses the eccentric adjusting sleeve (23) in the fixed seat (24), and the compression ring (22) is fixedly connected to the fixed seat (24) by screws. The outer surface of the eccentric adjusting sleeve (23) is composed of a section A (231) and a section B (232). The outer diameter of the section A (231) is smaller than the outer diameter of the section B (232). The section B (232) is rotatably arranged in the installation hole of the fixed seat (24). The section A (231) passes through the compression ring (22). The outer diameter of the section A (231) is less than or equal to the inner diameter of the compression ring (22), and the inner diameter of the compression ring (22) is also smaller than the outer diameter of the section B (232). The inner hole diameters of the section A (231) and the section B (232) are the same and coaxially arranged. The axis of the inner hole of the eccentric adjusting sleeve (23) is eccentrically arranged with the axis of the outer ring of the eccentric adjusting sleeve (23).

4. The base of the grate cooler hydraulic cylinder according to claim 3, characterized in that, Threaded holes are formed on the outer surface of the part of the section A (231) passing through the compression ring (22) and are threadedly connected to the toggle screw (21).