CN201062518Y - Single-body hydraulic supporter - Google Patents

Single-body hydraulic supporter Download PDF

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Publication number
CN201062518Y
CN201062518Y CNU2007200387664U CN200720038766U CN201062518Y CN 201062518 Y CN201062518 Y CN 201062518Y CN U2007200387664 U CNU2007200387664 U CN U2007200387664U CN 200720038766 U CN200720038766 U CN 200720038766U CN 201062518 Y CN201062518 Y CN 201062518Y
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CN
China
Prior art keywords
end cover
cylinder body
post
bottom end
alive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2007200387664U
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Chinese (zh)
Inventor
陆倍
靖树君
刘兆军
Original Assignee
李娟�
杨卫东
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 李娟�, 杨卫东 filed Critical 李娟�
Priority to CNU2007200387664U priority Critical patent/CN201062518Y/en
Application granted granted Critical
Publication of CN201062518Y publication Critical patent/CN201062518Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a monomer hydraulic supporting column. The utility model adopts the structure that a telescopic flexible pot body type capsule is installed between the lower end cover of a plunger and the lower end surface of a cylinder body, during the working of the hydraulic supporting column, a triple purpose valve handle body directly inputs high-pressure medium into the inner cavity of the capsule through a fluid transferring pipe and the lower end caver of the cylinder body, to push the plunger and a top cover to be lifted, and therefore to reach a supporting function. The capsule simultaneously realizes the sealing to the medium, cancels the plunger sealing ring and the cylinder body sealing ring, and reduces the manufacturing cost of the cylinder body. The capsule has good sealing effect, and reliable sealing.

Description

Hydraulic prop
Technical field
The utility model relates to a kind of mining equiment, is specifically related to mine back production supporting hydraulic prop, says it is a kind of with loading of capsules and seal the hydraulic prop of working media definitely.
Background technology
Hydraulic prop is the main suspension device of colliery high gear conventional face, is widely used in the mine produces.The present hydraulic prop that uses, the sealing of its high-pressure medium mainly rely on the sealing ring (floated pillar) between the handgrip body that is installed in the cylinder body upper end and the work post, or inner surface of cylinder block and be installed in two kinds of sealing rings (piston type pillar) on the piston.Encapsulating method all requires very high to the precision of the outer surface of column inner surface of cylinder block of living.Because subsurface environment is abominable, pillar uses under rugged environment for a long time, the corrosion of the outer surface of column inner surface of cylinder block of living, and factors such as aging, the wearing and tearing of sealing ring all can cause seal failure, cause the hydraulic prop lifting force to descend when serious, influence the safety of down-hole.
Summary of the invention
The purpose of this utility model provides a kind of hydraulic prop, it is only with flexible flexible capsule at cylinder inner bore suit one, the upper end of capsule is fixed on the post bottom end cover alive, the lower end is fixed on the cylinder body bottom end cover, and the output of triple-use valve handgrip body is by petroleum pipeline and oil transportation hole and the perforation of capsule inner chamber.
The utility model is realized with following technical scheme: a kind of hydraulic prop, comprise top cover, post alive, live post upper end cover, return spring, cylinder body, triple-use valve handgrip body, reinforcing sleeve, extension pipe, base, it is characterized in that: described post upper end cover external cylindrical surface alive is tightly fixed in the stepped hole of post upper end of living by two groups of O RunddichtringOs, and fixes with the top cover three who is installed in post alive upper end with the spring straight pin; Cylindrical post bottom end cover external cylindrical surface alive is by fixedly steel wire and Y sealing ring are tightly fixed in the stepped hole of post lower end of living; The external cylindrical surface of described cylinder body upper end is by the fixing steel wire cylinder body upper end cover that is tightly fixed, and cylinder body upper end cover endoporus is sleeved on the external cylindrical surface of post alive by dust ring, guide ring sliding fit; Described cylinder body bottom end cover is installed in the lower end of cylinder body, and its external cylindrical surface tight fit is sleeved in the hole at reinforcing sleeve middle part; Described triple-use valve handgrip body be fixed on the external cylindrical surface of reinforcing sleeve middle part and with the cylinder body bottom end cover on same horizontal plane; Described extension pipe upper end is fixed with cylinder body bottom end cover lower end, and the lower end is fixed on the base; Described return spring upper end is fixed on the post upper end cover alive, and the lower end is fixed on the cylinder body bottom end cover; The capsule upper end is installed on the post bottom end cover alive, and the lower end is installed on the cylinder body bottom end cover.
Described capsule is a retractable and flexible tubulose tank body, makes non-slip hook and anti-skidding boss up and down on the end face at two ends respectively; Fixedly make external screw thread on the swivel nut on the tubular, the lower end makes flange; The face of cylinder, described last fixedly swivel nut middle part is installed in the hole of post bottom end cover alive by Y sealing ring sliding fit; Described capsule upper end is installed in fixedly and also fixes with two nuts between the swivel nut and work post bottom end cover; Described cylinder body bottom end cover upper end makes external screw thread; Fixedly make stepped hole on the swivel nut under the tubular, the lower end makes internal thread; Described capsule lower end is installed in down fixedly and fixes between the swivel nut and cylinder body bottom end cover and with screw thread.
The described ring-shaped groove that upward fixedly swivel nut flange upper surface makes and non-slip hook is complementary; Fixedly make the ring-shaped groove that is complementary with non-slip hook on the inner face of swivel nut stepped hole under described; Make the ring-shaped groove that is complementary with anti-skidding boss on the lower surface of described post bottom end cover alive; Make the ring-shaped groove that is complementary with anti-skidding boss on the upper surface of described cylinder body bottom end cover.
Make the right angle infusion hole on the described cylinder body bottom end cover; The output of described triple-use valve handgrip body is by woven hose and infusion hole and the perforation of capsule inner chamber.
Good effect of the present utility model is:
1, because capsule is the flexible tank body that can stretch, high-pressure medium process triple-use valve and woven hose, infusion hole enter the inner chamber of capsule, promote the function that post lifting alive reaches supporting.Liquid in-out is unobstructed, and lifting and discharge rate are fast, guarantees the lifting force that hydraulic prop is constant, reduces the unloading folding post time, favourable safety in production.
2, high-pressure medium is sealed in capsule, good sealing effect.Save column sealing circle alive, piston packing reduces live post, cylinder body manufacturing cost, reduces the maintenance cost of live post and cylinder body.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the utility model structural representation;
Fig. 2 is the A place partial enlarged drawing of Fig. 1;
Fig. 3 is the B place partial enlarged drawing of Fig. 1.
Among the figure: 1, top cover, 2, sealing ring, 3, the post upper end cover of living, 4, dust ring, 5, guide ring, 6, the cylinder body upper end cover, 7, fixing steel wire, 8, the post of living, 9, return spring, 10, cylinder body, 11, nut, 12, the Y sealing ring, 13, fixing steel wire, 14, the Y sealing ring, 15, the post bottom end cover of living, 16, fixing swivel nut on, 17, glue tramples the 17-1 non-slip hook, 17-2, anti-skidding boss, 18, following fixing swivel nut, 19, woven hose, 20, cylinder body bottom end cover, 20-1, infusion hole, 21, triple-use valve handgrip body, 22, reinforcing sleeve, 23, extension pipe, 24, base.
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3: a kind of hydraulic prop, comprise top cover 1, post 8 alive, live post upper end cover 3, return spring 9, cylinder body 10, triple-use valve handgrip body 21, reinforcing sleeve 22, extension pipe 23, base 24, it is characterized in that: described post upper end cover 3 external cylindrical surfaces alive are tightly fixed in the stepped hole of post 8 upper ends of living by two groups of O RunddichtringOs, and fix with top cover 1 three who is installed in post alive upper end with the spring straight pin; Cylindrical post bottom end cover 15 external cylindrical surfaces alive are by fixedly steel wire 13 and Y sealing ring 12 are tightly fixed in the stepped hole of post 8 lower ends of living; The external cylindrical surface of described cylinder body 10 upper ends is by the fixing steel wire 7 cylinder body upper end cover 6 that is tightly fixed, and cylinder body upper end cover 6 endoporus are sleeved on the external cylindrical surface of post 8 alive by dust ring 4, guide ring 5 sliding fits; Described cylinder body bottom end cover 20 is installed in the lower end of cylinder body 10, and its external cylindrical surface tight fit is sleeved in the hole at reinforcing sleeve 22 middle parts; Described triple-use valve handgrip body 21 be fixed on the reinforcing sleeve 22 middle part external cylindrical surfaces and with cylinder body bottom end cover 20 on same horizontal plane; Described extension pipe 23 upper ends and cylinder body bottom end cover lower end are fixed, and the lower end is fixed on the base 24; Described return spring 9 upper ends are fixed on the post upper end cover 3 alive, and the lower end is fixed on the cylinder body bottom end cover 20; Capsule 17 upper ends are installed on the post bottom end cover 15 alive, and the lower end is installed on the cylinder body bottom end cover 20.
Described capsule 17 is a retractable and flexible tubulose tank body, makes non-slip hook 17-1 and anti-skidding boss 17-2 up and down on the end face at two ends respectively; On the tubular fixedly swivel nut 16 upper ends make external screw thread, the lower end makes flange; The described last fixedly face of cylinder, swivel nut 16 middle part is installed in the hole of post bottom end cover 15 alive by Y sealing ring 14 sliding fits; Described capsule 17 upper ends are installed in fixedly swivel nut 16 and live and fix between the post bottom end cover 15 and with two nuts 11; Described cylinder body bottom end cover 20 upper ends make external screw thread; Under the tubular fixedly swivel nut 18 upper ends make stepped hole, the lower end makes internal thread; Described capsule 17 lower ends are installed in down fixedly and fix between the swivel nut 18 and cylinder body bottom end cover 20 and with screw thread.
The described ring-shaped groove that upward fixedly swivel nut 16 flange upper surfaces make and non-slip hook 17-1 is complementary; Fixedly make the ring-shaped groove that is complementary with non-slip hook 17-1 on the inner face of swivel nut 18 stepped holes under described; Make the ring-shaped groove that is complementary with anti-skidding boss 17-2 on the lower surface of described post bottom end cover 15 alive; Make the ring-shaped groove that is complementary with anti-skidding boss 17-2 on the upper surface of described cylinder body bottom end cover 24.
Make right angle infusion hole 20-1 on the described cylinder body bottom end cover 20; The output of described triple-use valve handgrip body 21 is by woven hose 19 and infusion hole 20-1 and the perforation of capsule 17 inner chambers.
As Fig. 1, Fig. 2, shown in Figure 3, hydraulic prop in use, triple-use valve handgrip body 21 enters the inner chamber of capsule 17 with high-pressure medium through woven hose 19 and infusion hole 20-1, the post bottom end cover 15 that promotes to live, the post 8 of living reach the function of supporting together with moving on the top cover 1.Because capsule 17 is the flexible tank bodies that can stretch, its upper end also can be along with the post bottom end cover 15 of living moves up and down under the effect of medium.During unloading, the post 8 of living moves down under the effect of return spring 9 fast, and the folding post time is short, helps downhole safety production.
As Fig. 1, Fig. 2, shown in Figure 3, two Y sealing rings 12,14 of installing on the post bottom end cover 15 of living just play the function of auxiliary static seal.Even their seal failures also can not influence the lifting force of pillar.
As Fig. 1, Fig. 2, shown in Figure 3, the effect of non-slip hook 17-1 and anti-skidding boss 17-2 is to make the installation of capsule upper and lower side more firm.

Claims (4)

1. hydraulic prop, comprise top cover (1), post (8) alive, live post upper end cover (3), return spring (9), cylinder body (10), triple-use valve handgrip body (21), reinforcing sleeve (22), extension pipe (23), base (24), it is characterized in that: described post upper end cover alive (3) external cylindrical surface is tightly fixed in the stepped hole of post (8) upper end of living by two groups of O RunddichtringOs, and fixes with top cover (1) three who is installed in post alive upper end with the spring straight pin; Cylindrical post bottom end cover alive (15) external cylindrical surface is by fixedly steel wire (13) and Y sealing ring (12) are tightly fixed in the stepped hole of post (8) lower end of living; The external cylindrical surface of described cylinder body (10) upper end is by fixing steel wire (7) the cylinder body upper end cover (6) that is tightly fixed, and cylinder body upper end cover (6) endoporus is sleeved on the external cylindrical surface of post alive (8) by dust ring (4), guide ring (5) sliding fit; Described cylinder body bottom end cover (20) is installed in the lower end of cylinder body (10), and its external cylindrical surface tight fit is sleeved in the hole at reinforcing sleeve (22) middle part; Described triple-use valve handgrip body (21) be fixed on the external cylindrical surface of reinforcing sleeve (22) middle part and with cylinder body bottom end cover (20) on same horizontal plane; Described extension pipe (23) upper end is fixed with cylinder body bottom end cover lower end, and the lower end is fixed on the base (24); Described return spring (9) upper end is fixed on the post upper end cover alive (3), and the lower end is fixed on the cylinder body bottom end cover (20); Capsule (17) upper end is installed on the post bottom end cover alive (15), and the lower end is installed on the cylinder body bottom end cover (20).
2. hydraulic prop according to claim 1 is characterized in that: described capsule (17) is a retractable and flexible tubulose tank body, makes non-slip hook (17-1) and anti-skidding boss (17-2) up and down on the end face at two ends respectively; Fixedly make external screw thread on the swivel nut (16) on the tubular, the lower end makes flange; The face of cylinder, described last fixedly swivel nut (16) middle part is installed in the hole of post bottom end cover alive (15) by Y sealing ring (14) sliding fit; Described capsule (17) upper end is installed in fixedly and also fixes with two nuts (11) between the swivel nut (16) and work post bottom end cover (15); Described cylinder body bottom end cover (20) upper end makes external screw thread; Fixedly make stepped hole on the swivel nut (18) under the tubular, the lower end makes internal thread; Described capsule (17) lower end is installed in down fixedly and fixes between the swivel nut (18) and cylinder body bottom end cover (20) and with screw thread.
3. hydraulic prop according to claim 2 is characterized in that: the described ring-shaped groove that upward fixedly swivel nut (16) flange upper surface makes and non-slip hook (17-1) is complementary; Fixedly make the ring-shaped groove that is complementary with non-slip hook (17-1) on the inner face of swivel nut (18) stepped hole under described; Make the ring-shaped groove that is complementary with anti-skidding boss (17-2) on the lower surface of described post bottom end cover alive (15); Make the ring-shaped groove that is complementary with anti-skidding boss (17-2) on the upper surface of described cylinder body bottom end cover (20).
4. hydraulic prop according to claim 1 is characterized in that: described cylinder body bottom end cover (20) is gone up and is made right angle infusion hole (20-1); The output of described triple-use valve handgrip body (21) connects with capsule (17) inner chamber by woven hose (19) and infusion hole (20-1).
CNU2007200387664U 2007-06-23 2007-06-23 Single-body hydraulic supporter Expired - Fee Related CN201062518Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200387664U CN201062518Y (en) 2007-06-23 2007-06-23 Single-body hydraulic supporter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200387664U CN201062518Y (en) 2007-06-23 2007-06-23 Single-body hydraulic supporter

Publications (1)

Publication Number Publication Date
CN201062518Y true CN201062518Y (en) 2008-05-21

Family

ID=39450889

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200387664U Expired - Fee Related CN201062518Y (en) 2007-06-23 2007-06-23 Single-body hydraulic supporter

Country Status (1)

Country Link
CN (1) CN201062518Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103114864A (en) * 2013-03-11 2013-05-22 淮北扬帆有色冶金科技有限公司 Split type single hydraulic prop and operation method thereof
CN105569694A (en) * 2016-01-13 2016-05-11 江苏华海钢结构有限公司 Hydraulic prop for mining

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103114864A (en) * 2013-03-11 2013-05-22 淮北扬帆有色冶金科技有限公司 Split type single hydraulic prop and operation method thereof
CN103114864B (en) * 2013-03-11 2015-03-11 淮北扬帆有色冶金科技有限公司 Split type single hydraulic prop and operation method thereof
CN105569694A (en) * 2016-01-13 2016-05-11 江苏华海钢结构有限公司 Hydraulic prop for mining

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Lu Xin

Inventor after: Jing Shu Jun

Inventor after: Liu Zhaojun

Inventor before: Lu Jing

Inventor before: Jing Shu Jun

Inventor before: Liu Zhaojun

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: LU BEI; JINGSHUJUN; LIU ZHAOJUN TO: LU XIN; JINGSHUJUN; LIU ZHAOJUN

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080521