Novel rock drilling machine positioning structure

Abstract

The utility model relates to the technical field of rock drills of engineering machinery, in particular to a novel rock drilling machine positioning structure which comprises an O-shaped ring I, a check ring and a cylinder body I. When pilot oil is introduced from an oil port of a cylinder body II, the pilot oil pushes a positioning connecting rod, a spring seat II, a multi-way valve core and a compression reset spring through part gaps; and meanwhile, the large steel ball compresses the positioning spring, the small steel ball is separated from the positioning groove of the positioning sleeve, and when the second spring seat drives the positioning connecting rod and the multi-way valve element to move to be next to the first spring seat, the small steel ball moves from one positioning groove to another positioning groove, so that the stable and reliable positioning function is realized, and in the engineering machinery rock drilling machine, the positioning effect is good. The problem that a positioning structure is not reliable when a pilot control mode is used is solved, compared with an original positioning structure, the situation that a push rod and pilot oil directly push a valve element and related parts through part gaps is omitted, the stable and reliable positioning function is achieved, and installation space can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery rock drilling, in particular to a novel positioning structure for a rock drilling rig. Background Art

[0002] At present, the positioning structure of the rock drilling rig adopts a method in which pilot oil pushes the push rod, and the push rod then pushes related parts to realize the positioning function. In the process of the pilot oil pushing the push rod, the push rod can easily get stuck due to processing accuracy and assembly deviation, thus failing to realize the positioning function.

[0003] In summary, the utility model solves the existing problems by proposing a novel positioning structure for a rock drilling rig. Utility Model Content

[0004] The purpose of the utility model is to provide a new positioning structure for a rock drilling rig to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A new type of rock drilling rig positioning structure, comprising an O-ring, a retaining ring and a cylinder body, wherein one end of the cylinder body is fixedly mounted with a cylinder body, and the inner wall of the other end of the cylinder body is fixedly sleeved with a retaining ring, wherein one end of the retaining ring extends to the outside of the cylinder body and is fixedly sleeved in the inner wall of the connecting piece, an O-ring is installed at the connection between the connecting piece and the retaining ring, an O-ring is installed at the connection between the retaining ring and the cylinder body, and an O-ring is installed at the connection between the cylinder body and the cylinder body. A third O-ring is installed at the connection between the cylinder body and the cylinder body, and a positioning sleeve, a positioning connecting rod, a spring seat second, a reset spring, a spring seat and a multi-way valve core are sequentially arranged from left to right in the inner cavity of the cylinder body. The two ends of the positioning spring are respectively sleeved on the outer walls of the spring seat 2 and the spring seat 1, and the multi-way valve core is slidably connected to the inside of the retaining ring and the spring seat 1, wherein one end of the multi-way valve core passes through the spring seat 1 and the spring seat 2 in sequence, and extends to the inside of the spring seat 2 and is connected to the positioning connecting rod, and the inner wall of the positioning sleeve is evenly provided with positioning grooves from left to right, and the inner cavity of the positioning connecting rod is sequentially provided with a large steel ball and a positioning spring from left to right, and the outer wall of the positioning connecting rod is evenly provided with a small steel ball positioning through hole and located on the left side of the large steel ball, and a small steel ball is arranged inside the small steel ball positioning through hole and corresponding to the positioning groove;

[0007] The positioning connecting rod, spring seat 2 and multi-way valve core are pushed to compress the reset spring. At the same time, the large steel ball compresses the positioning spring, and the small steel ball will escape from the positioning groove of the positioning sleeve. When the spring seat 2 drives the positioning connecting rod and the multi-way valve core to move close to the spring seat 1, the small steel ball will move from one positioning groove to another.

[0008] As a preferred solution of the utility model, the inner cavity of the cylinder body 1 is connected to the oil port provided on the cylinder body 2, and the O-ring 1 is interference fit inside the O-ring sealing groove 1 provided at the end of the retaining ring.

[0009] As a preferred solution of the utility model, the second O-ring is interference-fitted inside the annular groove provided on the outer wall of the retaining ring, and the third O-ring is interference-fitted inside the second O-ring sealing groove provided on the second cylinder body.

[0010] As a preferred solution of the utility model, the spring seat 2 is slidably connected in the inner cavity of the cylinder body 1, wherein the return spring is compressed in the inner cavity of the cylinder body 1 after receiving the thrust of the spring seat 2.

[0011] As a preferred solution of the utility model, the large steel ball and the inner cavity of the positioning connecting rod are matched in a clearance fit, and the clearance is 1-2mm. After the positioning spring is pushed by the large steel ball, it is compressed in the inner cavity of the positioning connecting rod.

[0012] As a preferred solution of the utility model, the outer wall of the small steel ball and the inner wall of the small steel ball positioning hole are matched in a clearance fit, the clearance is 0.5-1mm, and the diameter of the small steel ball is 1.5-2 times the wall thickness of the positioning connecting rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, when the pilot oil is introduced into the oil port of the cylinder body two, the pilot oil pushes the positioning connecting rod, the spring seat two, and the multi-way valve core through the parts gap, compresses the reset spring, and at the same time, the large steel ball compresses the positioning spring, and the small steel ball will escape from the positioning groove of the positioning sleeve. When the spring seat two drives the positioning connecting rod and the multi-way valve core to move close to the spring seat one, the small steel ball will move from one positioning groove to another positioning groove, thereby realizing a stable and reliable positioning function, thereby solving the problem of unreliable positioning structure when using the pilot control method in the engineering machinery rock drilling rig, and compared with the original positioning structure, the push rod is cancelled, and the pilot oil directly pushes the valve core and related parts through the parts gap, thereby realizing a stable and reliable positioning function, and also saving installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of the assembly of a positioning structure of a new type of rock drilling rig of the utility model.

[0016] In the figure: 1. O-ring one; 2. retaining ring; 3. O-ring two; 4. multi-way valve core; 5. spring seat one; 6. spring seat two; 7. return spring; 8. positioning connecting rod; 9. positioning spring; 10. positioning sleeve; 11. large steel ball; 12. small steel ball; 13. cylinder body one; 14. O-ring three; 15. cylinder body two. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0019] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also 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", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0021] For examples, see Figure 1 , the utility model provides a technical solution:

[0022] A new type of rock drilling rig positioning structure, including an O-ring 1, a retaining ring 2 and a cylinder body 13, one end of the cylinder body 13 is fixedly installed with a cylinder body 2 15, the inner wall of the other end of the cylinder body 13 is fixedly sleeved with a retaining ring 2, wherein one end of the retaining ring 2 extends to the outside of the cylinder body 2 15 and is fixedly sleeved in the inner wall of the connecting piece, the connection between the connecting piece and the retaining ring 2 is installed with an O-ring 1, the connection between the retaining ring 2 and the cylinder body 13 is installed with an O-ring 3, the connection between the cylinder body 13 and the cylinder body 2 15 is installed with an O-ring 3 14, and the inner cavity of the cylinder body 13 is equipped with a positioning sleeve 10, a positioning connecting rod 8, a spring seat 26, a return spring 7, a spring seat 5 and a multi-way The valve core 4 and the two ends of the return spring 7 are respectively sleeved on the outer walls of the spring seat 2 6 and the spring seat 1 5, and the multi-way valve core 4 is slidably connected to the inside of the retaining ring 2 and the spring seat 1 5, wherein one end of the multi-way valve core 4 passes through the spring seat 1 5 and the spring seat 2 6 in sequence, and extends to the inside of the spring seat 2 6 to be connected to the positioning connecting rod 8, and the inner wall of the positioning sleeve 10 is evenly provided with positioning grooves from left to right, and the inner cavity of the positioning connecting rod 8 is sequentially provided with a large steel ball 11 and a positioning spring 9 from left to right, and a small steel ball positioning through hole is evenly provided on the outer wall of the positioning connecting rod 8 and on the left side of the large steel ball 11, and a small steel ball 12 is arranged inside the small steel ball positioning through hole and corresponding to the positioning groove;

[0023] Among them, the positioning connecting rod 8, the spring seat 2 6, and the multi-way valve core 4 are pushed to compress the reset spring 7. At the same time, the large steel ball 11 compresses the positioning spring 9, and the small steel ball 12 will escape from the positioning groove of the positioning sleeve 10. When the spring seat 2 6 drives the positioning connecting rod 8 and the multi-way valve core 4 to move close to the spring seat 1 5, the small steel ball 12 will move from one positioning groove to another.

[0024] The inner cavity of cylinder body 13 is connected to the oil port provided on cylinder body 2 15 , and O-ring 1 is interference fit in O-ring sealing groove 1 provided at the end of retaining ring 2 .

[0025] The O-ring 2 3 is interference fit inside the annular groove provided on the outer wall of the retaining ring 2 , and the O-ring 3 14 is interference fit inside the O-ring sealing groove 2 provided on the cylinder body 2 15 .

[0026] The spring seat 2 6 is slidably connected in the inner cavity of the cylinder body 13 , wherein the return spring 7 is compressed in the inner cavity of the cylinder body 13 after receiving the thrust of the spring seat 2 6 .

[0027] The large steel ball 11 and the inner cavity of the positioning connecting rod 8 are matched in a clearance fit, and the clearance is 1-2mm. The positioning spring 9 is compressed in the inner cavity of the positioning connecting rod 8 after receiving the thrust of the large steel ball 11.

[0028] The outer wall of the small steel ball 12 and the inner wall of the small steel ball positioning through hole are matched in a clearance fit, and the clearance is 0.5-1mm, wherein the diameter of the small steel ball 12 is 1.5-2 times the wall thickness of the positioning connecting rod 8.

[0029] Based on the above conditions, the working process of the utility model is as follows: when the pilot oil is introduced into the oil port of the cylinder body 15, the pilot oil pushes the positioning connecting rod 8, the spring seat 2 6, and the multi-way valve core 4 through the gap between the parts, compressing the reset spring 7, and at the same time, the large steel ball 11 compresses the positioning spring 9, and the small steel ball 12 will escape from the positioning groove of the positioning sleeve 10, when the spring seat 2 6 drives the positioning connecting rod 8 and the multi-way valve core 4 to move close to the spring seat 1 5, the small steel ball 12 will move from one positioning groove to another positioning groove, thereby realizing a stable and reliable positioning function, thereby solving the problem of unreliable positioning structure when using the pilot control method in the engineering machinery rock drilling rig, and compared with the original positioning structure, the push rod is cancelled, and the pilot oil directly pushes the valve core and related parts through the gap between the parts, thereby realizing a stable and reliable positioning function, and also saving installation space.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of rock drilling rig positioning structure, comprising an O-ring (1), a retaining ring (2) and a cylinder (13), characterized in that: One end of the cylinder body 1 (13) is fixedly mounted with the cylinder body 2 (15), and the inner wall of the other end of the cylinder body 1 (13) is fixedly sleeved with a retaining ring (2), wherein one end of the retaining ring (2) extends to the outside of the cylinder body 2 (15) and is fixedly sleeved in the inner wall of the connecting piece, an O-ring 1 (1) is installed at the connection between the connecting piece and the retaining ring (2), an O-ring 2 (3) is installed at the connection between the retaining ring (2) and the cylinder body 1 (13), and an O-ring 3 (14) is installed at the connection between the cylinder body 1 (13) and the cylinder body 2 (15). The inner cavity of the cylinder body 1 (13) is equipped with a positioning sleeve (10), a positioning connecting rod (8), a spring seat 2 (6), a return spring (7), a spring seat 1 (5) and a multi-way valve core (4) in sequence from left to right, and the return spring (7 ) are respectively sleeved on the outer walls of the spring seat 2 (6) and the spring seat 1 (5), the multi-way valve core (4) is slidably connected to the inside of the retaining ring (2) and the spring seat 1 (5), wherein one end of the multi-way valve core (4) passes through the spring seat 1 (5) and the spring seat 2 (6) in sequence, and extends to the inside of the spring seat 2 (6) to be connected to the positioning connecting rod (8), the inner wall of the positioning sleeve (10) is evenly provided with positioning grooves from left to right, the inner cavity of the positioning connecting rod (8) is sequentially provided with a large steel ball (11) and a positioning spring (9), the outer wall of the positioning connecting rod (8) and located on the left side of the large steel ball (11) are evenly provided with small steel ball positioning through holes, and a small steel ball (12) is arranged inside the small steel ball positioning through hole and corresponding to the positioning groove; The positioning connecting rod (8), the second spring seat (6), and the multi-way valve core (4) are pushed to compress the return spring (7). At the same time, the large steel ball (11) compresses the positioning spring (9), and the small steel ball (12) will be released from the positioning groove of the positioning sleeve (10). When the second spring seat (6) drives the positioning connecting rod (8) and the multi-way valve core (4) to move close to the first spring seat (5), the small steel ball (12) will move from one positioning groove to another positioning groove.

2. A new type of rock drilling rig positioning structure according to claim 1, characterized in that: The inner cavity of the cylinder body 1 (13) is connected to the oil port provided on the cylinder body 2 (15), and the O-ring 1 (1) is interference-fitted in the O-ring sealing groove 1 provided at the end of the retaining ring (2).

3. A new type of rock drilling rig positioning structure according to claim 1, characterized in that: The second O-ring (3) is interference-fitted inside the annular groove provided on the outer wall of the retaining ring (2), and the third O-ring (14) is interference-fitted inside the second O-ring sealing groove provided on the second cylinder body (15).

4. A new type of rock drilling rig positioning structure according to claim 1, characterized in that: The spring seat 2 (6) is slidably connected in the inner cavity of the cylinder body 1 (13), wherein the return spring (7) is compressed in the inner cavity of the cylinder body 1 (13) after receiving the thrust of the spring seat 2 (6).

5. A new type of rock drilling rig positioning structure according to claim 1, characterized in that: The large steel ball (11) and the inner cavity of the positioning connecting rod (8) are matched in a clearance fit, with the clearance being 1-2 mm. The positioning spring (9) is compressed in the inner cavity of the positioning connecting rod (8) after receiving the thrust of the large steel ball (11).

6. A new type of rock drilling rig positioning structure according to claim 1, characterized in that: The outer wall of the small steel ball (12) and the inner wall of the small steel ball positioning through hole are matched in a clearance fit, with the clearance being 0.5-1 mm, wherein the diameter of the small steel ball (12) is 1.5-2 times the wall thickness of the positioning connecting rod (8).

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