Quartering hammer cylinder body structure for excavator

Abstract

The utility model discloses a breaking hammer cylinder body structure for an excavator, belongs to the technical field of breaking hammer cylinder bodies, and aims to solve the problem that bolts are easy to loosen in the operation process of the breaking hammer cylinder body structure. By rotating the hand wheel and under the action of threaded connection, the threaded sleeve and the limiting plate at the top end can be driven to synchronously move inwards, so that the two sides of the threaded sleeve are limited and fixed, the situation that a nut on the surface of a cylinder body of the breaking hammer is loosened when the breaking hammer operates under gravity is prevented, and the service life of the breaking hammer is prolonged. Meanwhile, by means of the clamping connection relation between the positioning blocks and the positioning grooves, the primary positioning effect can be achieved on connection of the upper cylinder body, the middle cylinder body and the lower cylinder body, and the situation that due to the fact that dislocation occurs in the splicing process, follow-up work cannot be conducted smoothly, and the production efficiency is improved is avoided. And the limiting block is inserted into the first spring, so that the elastic force of the first spring can be released in a layered manner, and workers are prevented from being accidentally injured.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator technical field, especially in a kind of broken hammer cylinder body structure for excavator. BACKGROUND

[0002] In the existing building construction, in order to quickly break down the building, generally will adopt broken hammer to break, the existing broken hammer generally will be fixed on excavator and use, broken efficiency is high, use is more efficient;

[0003] Chinese patent authorization announcement No.CN218091041U discloses a kind of broken hammer cylinder body structure for excavator, including upper cylinder body, middle cylinder body and lower cylinder body, upper cylinder body, middle cylinder body and lower cylinder body are connected with through bolt, the lower part of through bolt is connected on lower cylinder body by nut, upper cylinder body, middle cylinder body and lower cylinder body are locked together by nut on the upper part of through bolt, four end angles of upper cylinder body are provided with through insertion hole one, through bolt penetrates through insertion hole one, the lower part of through insertion hole one is provided with clamping groove one, spring one is arranged in clamping groove one, through bolt penetrates inside spring one, four end angles of upper cylinder body are provided with through insertion hole two, through bolt penetrates through insertion hole two, the lower part of through insertion hole one is provided with clamping groove two, spring two is arranged in clamping groove two, through bolt penetrates inside spring two, this structure utilizes spring to cooperate with horizontal bar to separate cylinder body conveniently and quickly, and cylinder body connecting seam does not need to be pried, to avoid cylinder body damage;

[0004] The prior art has the following disadvantages: the technical scheme sets a spring at the connection between the upper and lower cylinder bodies, the reset spring force can automatically separate the cylinder bodies, making it convenient to separate the cylinder bodies and more convenient to disassemble, but the bolt can loosen under strong operation vibration during use of the broken hammer, causing the upper and lower cylinder bodies to loosen, and the spring force can cause the cylinder bodies to automatically pop out during disassembly, which can cause injury to workers, and the sealing performance of the cylinder body connection is general, which can cause oil leakage, so a broken hammer cylinder body structure for excavator is needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a broken hammer cylinder body structure for excavator to solve the problem of bolt loosening during operation of the broken hammer cylinder body structure.

[0006] To achieve the above object, the utility model provides the following technical scheme: A broken hammer cylinder structure for excavator, including mounting seat, both sides of the inside of upper cylinder body, middle cylinder body, lower cylinder body are vertically penetrated with screw body, and the outside of screw body top is connected with nut, the bottom of middle cylinder body is connected with lower cylinder body, and the bottom of lower cylinder body is connected with drill rod, the inside of mounting seat is provided with locking mechanism, the inside of upper cylinder body, middle cylinder body and lower cylinder body all are provided with built -in groove, and the outside of screw body in built -in groove is coiled with first spring.

[0007] As further description of the above technical scheme, the locking mechanism includes positive and negative toothed screw, threaded sleeve, limit plate, hand wheel;

[0008] Positive and negative toothed screw is rotatably connected in the inside of mounting seat, the outside of positive and negative toothed screw is equipped with threaded sleeve, and the top of threaded sleeve is connected with limit plate, and one side of mounting seat is connected with hand wheel.

[0009] As further description of the above technical scheme, the outside of nut is attached with the inside of limit plate, and the shape of nut outside edge is same with the shape of limit plate inside edge.

[0010] As further description of the above technical scheme, both sides of upper cylinder body close to middle cylinder body and middle cylinder body close to lower cylinder body one end are connected with positioning block, both sides of middle cylinder body close to upper cylinder body and lower cylinder body close to middle cylinder body one end are provided with positioning groove, and positioning groove is connected with positioning block.

[0011] As further description of the above technical scheme, one end of upper cylinder body close to middle cylinder body and middle cylinder body close to lower cylinder body is connected with sealing ring, one end of middle cylinder body close to upper cylinder body and lower cylinder body close to middle cylinder body is connected with sealing block, and the inside of sealing block is provided with sealing groove, and sealing groove is attached with sealing ring.

[0012] As further description of the above technical scheme, both sides of sealing ring inside are provided with sealing mechanism, and sealing mechanism includes accommodating groove, movable sleeve, movable rod, second spring, connecting rod, movable plate, sealing filler;

[0013] Accommodating groove is arranged in the inside of sealing ring, both ends of accommodating groove inside are connected with movable rod, and the outside of movable rod is equipped with movable sleeve, the outside of movable rod of movable sleeve one end is coiled with second spring, the inside of sealing ring of accommodating groove one side is filled with sealing filler, and the inside of sealing filler is connected with movable plate, and movable plate is hinged with movable sleeve through connecting rod.

[0014] As a further description of the above technical solutions, the upper cylinder body, the middle cylinder body and the lower cylinder body are provided with threaded grooves on both sides, and threaded rods are rotatably connected in the threaded grooves.

[0015] Compared with the prior art, the technical scheme has the following beneficial effects:

[0016] By rotating the hand wheel and under the action of the threaded connection, the threaded sleeve and the limiting plate at the top end can be driven to move inward synchronously, thereby limiting and fixing the two sides of the threaded sleeve, so as to prevent the nut on the surface of the cylinder body from loosening under the gravity operation, and further prevent the cylinder bodies from falling apart, and the clamping connection between the positioning block and the positioning groove can preliminarily position the connection between the upper cylinder body, the middle cylinder body and the lower cylinder body, so as to prevent misalignment during splicing and affect the subsequent work.

[0017] The mutual clamping between the sealing ring, the sealing block and the sealing groove can effectively improve the sealing performance between the cylinder bodies and prevent oil leakage, and when the sealing ring and the sealing groove are clamped and sealed, the elastic force of the second spring can be used to drive the movable plate to press the sealing filler, so that the sealing performance between the two is more effective. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0019] Figure 1 It is a whole three-dimensional structure schematic diagram of the present application;

[0020] Figure 2 It is a nut and limiting plate combined three-dimensional structure schematic diagram of the present application;

[0021] Figure 3 It is a front view of the mounting seat of the present application;

[0022] Figure 4 It is a front view of the present application;

[0023] Figure 5 It is the combined structure schematic view of the upper cylinder body and the middle cylinder body connecting part of the utility model;

[0024] Figure 6 It is the combined three-dimensional structure schematic view of the sealing ring and the sealing block of the utility model;

[0025] Figure 7 It is the structure schematic view of the utility model; Figure 5 middle A place structure schematic view.

[0026] The figure mark explanation: 1, mounting seat; 2, nut; 3, hand wheel; 4, upper cylinder body; 5, middle cylinder body; 6, buffer support seat; 7, lower cylinder body; 8, drill rod; 9, limiting plate; 10, threaded sleeve; 11, positive and negative toothed screw; 12, built-in groove; 13, threaded groove; 14, threaded rod; 15, first spring; 16, sealing ring; 17, positioning block; 18, positioning groove; 19, swivel ring; 20, limiting block; 21, sealing block; 22, sealing groove; 23, sealing mechanism; 2301, containing groove; 2302, movable sleeve; 2303, movable rod; 2304, second spring; 2305, connecting rod; 2306, movable plate; 2307, sealing filler; 24, screw body. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0028] The utility model will be further described below in conjunction with the embodiments.

[0029] Embodiment one:

[0030] In conjunction with Figure 1 , Figure 2 and Figure 3The utility model provides a kind of hydraulic breaker, including mounting seat 1, the bottom end of mounting seat 1 is connected with upper cylinder body 4, and the bottom end of upper cylinder body 4 is connected with middle cylinder body 5, the bottom end of middle cylinder body 5 is connected with lower cylinder body 7, and the bottom end of lower cylinder body 7 is connected with drill rod 8, locking mechanism is provided in the inside of mounting seat 1, both sides in the inside of upper cylinder body 4, middle cylinder body 5, lower cylinder body 7 are vertically penetrated by screw body 24, and the inside of upper cylinder body 4, middle cylinder body 5 and lower cylinder body 7 is provided with built-in groove 12, and the outside of screw body 24 in the inside of built-in groove 12 is wound with first spring 15, locking mechanism includes positive and negative toothed screw 11, threaded sleeve 10, limit plate 9, hand wheel 3;Positive and negative toothed screw 11 is rotatably connected in the inside of mounting seat 1, the outside of positive and negative toothed screw 11 is sleeved with threaded sleeve 10, and the top of threaded sleeve 10 is fixedly connected with limit plate 9, one side of mounting seat 1 is connected with hand wheel 3, the outside of nut 2 is attached with the inside of limit plate 9, the shape of the outside edge of nut 2 is same with the shape of the inside edge of limit plate 9, both sides of the one end of upper cylinder body 4 close to middle cylinder body 5 and middle cylinder body 5 close to lower cylinder body 7 are connected with positioning block 17, both sides of the one end of middle cylinder body 5 close to upper cylinder body 4 and lower cylinder body 7 close to middle cylinder body 5 are provided with positioning groove 18, and positioning groove 18 is hingedly connected with positioning block 17, both sides in the inside of upper cylinder body 4, middle cylinder body 5, lower cylinder body 7 are provided with screw groove 13, and screw groove 13 is rotatably connected with threaded rod 14 in the inside, the outside of screw groove 13 is connected with swivel ring 19, and the inside of screw groove 13 is connected with limit block 20.

[0031] In the embodiment, the engagement connection between the positioning block 17 and the positioning groove 18 can preliminarily position the splicing between the upper cylinder body 4, the middle cylinder body 5 and the buffer support seat 6 to prevent misalignment during splicing. After splicing is completed, rotating the swivel ring 19 under the action of threaded connection inserts the limit block 20 into the inside of the first spring 15 to suppress the elastic force of the first spring 15. At this time, rotating the hand wheel 3 under the action of threaded connection can drive the threaded sleeve 10 and the limit plate 9 at the top to move inward synchronously to limit and fix the two sides of the threaded sleeve 10 to prevent the nut 2 on the surface of the cylinder body from loosening under the gravity of the breaking hammer, so that the cylinder bodies are not separated.

[0032] Embodiment two:

[0033] In combination with Figure 4 , Figure 5 and Figure 6The upper cylinder body 4 is connected with a sealing ring 16 near the middle cylinder body 5, and the middle cylinder body 5 is connected with a sealing ring 16 near the lower cylinder body 7; the middle cylinder body 5 is connected with a sealing block 21 near the upper cylinder body 4, and the lower cylinder body 7 is connected with a sealing block 21 near the middle cylinder body 5; the inner side of the sealing block 21 is provided with a sealing groove 22, and the sealing groove 22 is in close contact with the sealing ring 16; the sealing mechanism 23 is arranged on the both sides of the sealing ring 16, and the sealing mechanism 23 comprises a containing groove 2301, a movable sleeve 2302, a movable rod 2303, a second spring 2304, a connecting rod 2305, a movable plate 2306 and sealing filler 2307; the containing groove 2301 is arranged in the sealing ring 16, and the both ends of the containing groove 2301 are connected with the movable rod 2303; the outer side of the movable rod 2303 is sleeved with the movable sleeve 2302; the outer side of the movable rod 2303 at one end of the movable sleeve 2302 is wound with the second spring 2304; the inner side of the sealing ring 16 at one side of the containing groove 2301 is filled with the sealing filler 2307, and the inner side of the sealing filler 2307 is connected with the movable plate 2306; and the movable plate 2306 is hinged with the movable sleeve 2302 through the connecting rod 2305.

[0034] In the embodiment, the sealing ring 16, the sealing block 21 and the sealing groove 22 are clamped with each other, so that the sealing performance of the connection part is improved; when the sealing ring 16 and the sealing groove 22 are clamped with each other, the elastic force of the second spring 2304 drives the movable plate 2306 to press the sealing filler 2307, so that the sealing performance of the sealing assembly is further improved, and the phenomenon of oil leakage of the cylinder during use is prevented.

[0035] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A breaking hammer cylinder structure for a hydraulic excavator comprising a mounting bracket (1), characterized in that: The bottom end of the mounting seat (1) is connected with an upper cylinder body (4), the bottom end of the upper cylinder body (4) is connected with a middle cylinder body (5), the bottom end of the middle cylinder body (5) is connected with a lower cylinder body (7), the bottom end of the lower cylinder body (7) is connected with a drill rod (8), the inside of the mounting seat (1) is provided with a locking mechanism, the inside of the upper cylinder body (4), the middle cylinder body (5) and the lower cylinder body (7) is vertically penetrated by a screw body (24), the inside of the upper cylinder body (4), the middle cylinder body (5) and the lower cylinder body (7) is provided with an embedded groove (12), and the outside of the screw body (24) in the embedded groove (12) is wound with a first spring (15).

2. The breaking hammer cylinder structure for a backhoe according to claim 1, characterized in that: The locking mechanism comprises a reverse thread screw (11), a threaded sleeve (10), a limiting plate (9), a hand wheel (3) and a guide block; The reverse thread screw (11) is rotatably connected in the inside of the mounting seat (1), the outside of the reverse thread screw (11) is sleeved with the threaded sleeve (10), the top end of the threaded sleeve (10) is fixedly connected with the limiting plate (9), and one side of the mounting seat (1) is connected with the hand wheel (3).

3. The breaking hammer cylinder structure for a backhoe according to claim 1, characterized in that: The outside of the screw cap (2) is attached to the inside of the limiting plate (9), and the shape of the outer edge of the screw cap (2) is the same as that of the inner edge of the limiting plate (9).

4. The breaking hammer cylinder structure for a backhoe according to claim 1, characterized by: The two sides of the upper cylinder body (4) close to the middle cylinder body (5) and the middle cylinder body (5) close to the lower cylinder body (7) are connected with positioning blocks (17), the two sides of the middle cylinder body (5) close to the upper cylinder body (4) and the lower cylinder body (7) close to the middle cylinder body (5) are provided with positioning grooves (18), and the positioning grooves (18) are connected with the positioning blocks (17) in a clamped manner.

5. The breaking hammer cylinder structure for a backhoe according to claim 1, characterized by: The one end of the upper cylinder body (4) close to the middle cylinder body (5) and the middle cylinder body (5) close to the lower cylinder body (7) is connected with a sealing ring (16), the one end of the middle cylinder body (5) close to the upper cylinder body (4) and the lower cylinder body (7) close to the middle cylinder body (5) is connected with a sealing block (21), the inside of the sealing block (21) is provided with a sealing groove (22), and the sealing groove (22) is attached to the sealing ring (16).

6. The breaking hammer cylinder structure for a backhoe according to claim 5, characterized by: The two sides of the sealing ring (16) are provided with sealing mechanisms (23), and the sealing mechanism (23) comprises a containing groove (2301), a movable sleeve (2302), a movable rod (2303), a second spring (2304), a connecting rod (2305), a movable plate (2306) and sealing filler (2307). The containing groove (2301) is arranged in the inside of the sealing ring (16), the two ends of the containing groove (2301) are connected with the movable rod (2303), the outside of the movable rod (2303) is sleeved with the movable sleeve (2302), the outside of the movable rod (2303) at one end of the movable sleeve (2302) is wound with the second spring (2304), the inside of the sealing ring (16) on one side of the containing groove (2301) is filled with the sealing filler (2307), the inside of the sealing filler (2307) is connected with the movable plate (2306), and the movable plate (2306) is hinged to the movable sleeve (2302) through the connecting rod (2305).

7. The structure of a breaking hammer cylinder for a excavator according to claim 1, wherein: Both sides of the upper cylinder body (4), the middle cylinder body (5), the lower cylinder body (7) are provided with threaded grooves (13), and the threaded grooves (13) are rotatably connected with threaded rods (14) inside, the outer sides of the threaded grooves (13) are connected with rotating rings (19), and the inner sides of the threaded grooves (13) are connected with limiting blocks (20).

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