CN215238290U - Chamfering device for trimming radial orifice of steel pipe - Google Patents

Chamfering device for trimming radial orifice of steel pipe Download PDF

Info

Publication number
CN215238290U
CN215238290U CN202121166227.5U CN202121166227U CN215238290U CN 215238290 U CN215238290 U CN 215238290U CN 202121166227 U CN202121166227 U CN 202121166227U CN 215238290 U CN215238290 U CN 215238290U
Authority
CN
China
Prior art keywords
sleeve
steel pipe
rotating shaft
swing
trimming
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.)
Active
Application number
CN202121166227.5U
Other languages
Chinese (zh)
Inventor
潘红恩
丁伟杰
祁帆
吴官杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing College of Information Technology
Original Assignee
Nanjing College of Information Technology
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 Nanjing College of Information Technology filed Critical Nanjing College of Information Technology
Priority to CN202121166227.5U priority Critical patent/CN215238290U/en
Application granted granted Critical
Publication of CN215238290U publication Critical patent/CN215238290U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Milling Processes (AREA)

Abstract

The utility model discloses a steel pipe radial orifice trimming chamfering device, wherein a rotary control mechanism comprises a rotary mechanism and a driving mechanism for driving the rotary mechanism; the slewing mechanism comprises a first rotating shaft, an adjustable rotating arm I is arranged at the bottom of the first rotating shaft, and a sleeve I is arranged at one end of the adjustable rotating arm; the swing control mechanism is connected with the frame; the swing mechanism comprises a second rotating shaft, the second rotating shaft is connected with a second adjustable swing arm, the top of the second adjustable swing arm is provided with a second sleeve, a sliding rod is arranged in the second sleeve, and the end part of the sliding rod is provided with a third sleeve; the trimming device comprises a driving device, the output end of the driving device is connected with a trimming cutter, the other end of the driving device is upwards connected with a cylinder, and the cylinder penetrates through the sleeve III to be connected with the sleeve III; the utility model discloses trimming device is along the radial drill way on the steel pipe and is regular curvilinear motion under the effect of mechanism, and the motion trail is stable accurate, and the quality of repairing or chamfering obtains guaranteeing.

Description

Chamfering device for trimming radial orifice of steel pipe
Technical Field
The utility model relates to a chamfer device is maintained in radial drill way of steel pipe belongs to machining technical field.
Background
The use amount of steel pipe is very big in production fields such as petrochemical, when the steel pipe installation, also need set up radial hole on the steel pipe sometimes, radial drill way can adopt machining to accomplish, more adopt methods such as gas cutting to accomplish, the processingquality in drill way is not too high, for improving drill way quality, generally need to maintain it or handle such as chamfer, and these work are more accomplished by artifical the polishing, and manual operation is not only inefficient, the quality also is difficult to effectively guarantee, therefore it is necessary to design a reasonable practical steel pipe radial drill way and maintain chamfer device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome for improving drill way quality, generally need to maintain it or handle such as chamfer, and these work is more accomplished by artifical polishing, and manual operation is not only inefficiency, and the quality also is difficult to effectively guarantee not enough, provides a chamfer device is maintained in the radial drill way of steel pipe.
A steel pipe radial orifice trimming chamfering device comprises:
the rotary control mechanism comprises a rotary mechanism and a driving mechanism for driving the rotary mechanism;
the rotation control mechanism comprises a rotation mechanism and a driving mechanism which are connected with the rack through a first substrate; the slewing mechanism comprises a first rotating shaft which is in transmission with the driving mechanism, a first adjustable rotating arm is arranged at the bottom of the first rotating shaft, and a first sleeve is arranged at one end of the first adjustable rotating arm;
the swing control mechanism is connected with the rack; the swing control mechanism comprises a swing mechanism, the swing mechanism comprises a second rotating shaft, the second rotating shaft is connected with a second adjustable swing arm, the top of the second adjustable swing arm is provided with a second sleeve, a sliding rod is arranged in the second sleeve, and the end part of the sliding rod is provided with a third sleeve;
and the trimming device comprises a driving device, the output end of the driving device is connected with a trimming cutter, the other end of the driving device is upwards connected with a cylinder, and the cylinder penetrates through the third sleeve and is connected with the third sleeve.
Further, the driving mechanism comprises a first motor, a first belt wheel is arranged at the output end of the first motor, a second belt wheel is arranged on the first rotating shaft, and the first belt wheel is connected with the second belt wheel through a belt.
Furthermore, the first rotating shaft is connected with the first substrate through the first bearing seat.
Further, the rack comprises a base, the base is provided with a V-shaped block for placing a steel pipe, the side part of the base is provided with a spiral guide pillar and a round guide pillar which are parallel to each other, the spiral guide pillar is sequentially provided with a height adjusting nut and a first guide sleeve from bottom to top, and the first guide sleeve is provided with a locking screw; and a second guide sleeve is arranged on the round guide pillar, and a connecting plate for connecting the rotary control mechanism and the swing control mechanism is arranged on the first guide sleeve and the second guide sleeve.
Furthermore, the second rotating shaft is connected with a second bearing seat, the second bearing seat is connected with a second substrate, and the second substrate is connected with the connecting plate through a side plate.
Furthermore, the first base plate is connected with the connecting plate through the vertical plate.
Further, the third sleeve is provided with a compression screw.
Furthermore, the output end of the driving device is connected with the trimming cutter through a chuck, and the driving device is a motor II.
Compared with the prior art, the utility model discloses the beneficial effect who reaches: the trimming cutter of the utility model makes regular circular motion and up-and-down motion along the radial orifice on the steel pipe under the action of the swing mechanism and the swing mechanism, the motion trail is stable and accurate, and the quality of trimming or chamfering is ensured; the instability of manual operation is avoided, the operation safety is ensured, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic view of a chamfering device according to the present invention;
FIG. 2 is a schematic view of the rack of the present invention;
FIG. 3 is a schematic view of the rotation control mechanism of the present invention;
fig. 4 is a schematic view of the swing control mechanism of the present invention;
fig. 5 is a schematic view of the trimming device of the present invention.
In the figure: 100. a frame; 200. a rotation control mechanism; 300. a swing control mechanism; 400. a dressing device; 101. a base; 102. a spiral guide post; 103. a round guide post; 104. a first guide sleeve; 105. A second guide sleeve; 106. a height adjustment nut; 107. locking the screw; 108. a coupling plate; 109. a V-shaped block; 011. a steel pipe; 012. an orifice to be trimmed; 210. a first substrate; 211. A vertical plate; 220. a swing mechanism; 221. a first bearing seat; 222. a first rotating shaft; 223. the first adjustable rotating arm; 224. a first sleeve; 230. a drive mechanism; 231. a first motor; 232. supporting a tube; 233. A first belt wheel; 234. a belt; 235. a second belt wheel;
310. a second substrate; 311. a side plate; 320. a swing mechanism; 321. a second bearing seat; 322. a second rotating shaft; 323. A second adjustable swing arm; 324. a second sleeve; 325. a slide rod; 326. a sleeve III; 327. a compression screw; 411. a cylinder; 412. a support; 421. a second motor; 422. Clamping a head; 423. and (6) trimming the cutter.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1-5, a steel pipe radial orifice trimming and chamfering device is disclosed, comprising:
a swing control mechanism 200 including a swing mechanism 220 and a driving mechanism 230 for driving the swing mechanism 200;
as shown in fig. 2, the rack 100, the rotation control mechanism including a rotation mechanism 220 and a driving mechanism 230 are connected to the rack 100 through a first substrate 210;
specifically, the rack 100 comprises a base 101, the base 101 is provided with a V-shaped block 109 for placing the steel pipe 011, the side part of the base 101 is provided with a spiral guide post 102 and a round guide post 103 which are parallel to each other, and the base is vertically fixed on the right side of the middle part of the rectangular base 101; the spiral guide post 102 is sequentially provided with a height adjusting nut 106 and a first guide sleeve 104 from bottom to top, and the first guide sleeve 104 is provided with a locking screw 107; a second guide sleeve 105 is arranged on the round guide post 103, a connecting plate 108 for connecting the rotary control mechanism 200 and the swing control mechanism 300 is arranged on the first guide sleeve 104 and the second guide sleeve 105, the connecting plate 108 drives the connecting plate 108 to be adjusted up and down through the up-and-down rotation adjustment of a height adjusting nut 106, and the position adjusted to be verified is fixed through a locking screw 107;
as shown in fig. 3, the swing mechanism 220 includes a first rotating shaft 222 which is in transmission with the driving mechanism 230, a first adjustable rotating arm 223 is arranged at the bottom of the first rotating shaft 222, and a first sleeve 224 is arranged at one end of the first adjustable rotating arm 223; the driving mechanism 230 comprises a first motor 231, a first belt wheel 233 is arranged at the output end of the first motor 231, a second belt wheel 235 is arranged on the first rotating shaft 222, and the first belt wheel 233 is connected with the second belt wheel 235 through a belt 234. The first rotating shaft 222 is connected with the first substrate 210 through the first bearing seat 221, and the first substrate 210 is connected with the connecting plate 108 through the vertical plate 211. In the present embodiment, the first bearing seat 221 is fixedly installed in the through hole at the left end of the first base plate 210, the first rotating shaft 222 is rotatably installed in the first bearing seat 221 through a bearing, the second pulley 235 is fixedly installed at the upper end of the first rotating shaft 222, the adjustable rotating arm 223 is horizontally installed at the lower end of the first rotating shaft 222, the first sleeve 224 is vertically installed at the tail end of the adjustable rotating arm 223, the axial line of the first sleeve 224 is parallel to the axial line of the first rotating shaft 222, and the distance between the first sleeve 224 and the adjustable rotating arm 223 can be adjusted by moving the adjustable rotating arm 223. It is worth noting that: the distance between the axis of the first sleeve 224 and the axis of the first rotating shaft 222 is approximately equal to the radius of the radial hole of the steel pipe to be trimmed.
The first motor 231 is fixedly installed above the first elongated substrate 210 through a plurality of support tubes 232, and the first motor 231 is driven to rotate through a first belt pulley 233 and a second belt pulley 235 fixedly installed on a motor shaft end, so as to drive the first rotating shaft 222 of the rotating mechanism 220 to drive the adjustable rotating arm 223 and the first sleeve 224 to rotate.
As shown in fig. 4, a swing control mechanism 300, wherein the swing control mechanism 300 is connected with the frame 100; the swing control mechanism 300 comprises a swing mechanism 320, the swing mechanism 320 comprises a second rotating shaft 322, the second rotating shaft 322 is connected with a second adjustable swing arm 323, a second sleeve 324 is arranged at the top of the second adjustable swing arm 323, a sliding rod 325 is arranged in the second sleeve 324, and a third sleeve 326 is arranged at the end part of the sliding rod 325; the second rotating shaft 322 is connected with a second bearing seat 321, the second bearing seat 321 is connected with a second substrate 310, and the second substrate 310 is connected with the coupling plate 108 through a side plate 311.
The second base plate 310 and the side plate 311 are vertically fixed into a whole and are in an L-shaped structure, the swing control mechanism 300 is fixedly arranged on the inner side of the rectangular connecting plate 108 on the rack 100 through the side plate 311 and is positioned below the middle of the plate, the second base plate 310 is arranged perpendicular to the rectangular connecting plate 108 on the rack 100, and the second base plate 310 is perpendicular to the base 101.
The second bearing seat 321 is fixedly arranged at one end of the second base plate 310 far away from the side plate 311, the second rotating shaft 322 is rotatably arranged with the second bearing seat 321 through a bearing, and the axis of the second rotating shaft 322 is horizontally arranged and parallel to the rectangular connecting plate 108.
An adjustable swing arm 323 is vertically installed on the second rotating shaft 322, a second sleeve 324 is fixedly arranged at one end of the adjustable swing arm 323, the axis of the second sleeve 324 is parallel to the axis of the second rotating shaft 322, and the distance between the axis of the second sleeve 324 and the axis of the second rotating shaft 322 can be adjusted by moving the adjustable swing arm 323. It is worth noting that: the distance between the axis of the second sleeve 324 and the axis of the second rotating shaft 322 is equal to the radius of the steel pipe to be trimmed.
A sliding rod 325 is arranged in the hole of the second sleeve 324 in a sliding mode, and relative rotation and axial sliding exist between the outer circle of the sliding rod 325 and the inner hole of the second sleeve 324. One end of the sliding rod 325 is fixedly provided with a sleeve III 326, and the axis of the sleeve III 326 is vertical to the axis of the sliding rod 325.
As shown in fig. 5, the trimming device 400 includes a driving device, the output end of the driving device is connected with a trimming cutter 423, the other end is connected with a cylinder 411 upwards, and the cylinder 411 passes through a sleeve three 326 and is connected with the sleeve three 326. The third sleeve 326 is provided with a compression screw 327. The output end of the driving device is connected with the trimming cutter 423 through a clamping head 422, and the driving device is a second motor 422.
The cylinder 411 of the dressing device 400 is fixedly installed from bottom to top through the inner hole of the sleeve three 326, and the sleeve three 326 is fixedly connected with the cylinder 411 of the dressing device 400 through the compression screw 327. The upper section of the cylinder 411 of the dressing device 400 is inserted into the hole of the first sleeve 224 of the rotary control mechanism 200, and the outer circle of the cylinder 411 is in sliding fit with the inner hole of the first sleeve 224.
The cylinder 411 is fixedly arranged on the central line above the support 412, the small motor 421 is fixedly arranged in the support 412, the rotating shaft of the small motor 421 penetrates below the support 412, and the trimming cutter 423 is fixedly connected with the rotating shaft of the small motor 421 through a chuck 422. The dressing tool 423 may be a milling cutter or a tool such as a small grinding wheel.
The dressing device 400 is vertically arranged, the cylinder 411 of the dressing device 400 is fixedly installed from bottom to top through the inner hole of the sleeve III 326, and the sleeve III 326 is fixedly connected with the cylinder 411 of the dressing device 400 through the compression screw 327. The upper section of the cylinder 411 of the dressing device 400 is inserted into the hole of the first sleeve 224 of the rotary control mechanism 200, and the outer circle of the cylinder 411 is in sliding fit with the inner hole of the first sleeve 224.
The working process is as follows: placing the steel pipe to be trimmed or chamfered with the radial hole on the V-shaped block, enabling the radial hole to face upwards, adjusting the position of the steel pipe to enable the center of the radial hole to coincide with the center of a first rotating shaft 222 of the rotating mechanism 220, and then fixing the steel pipe;
the position of the adjustable swing arm of the swing control mechanism 300 is adjusted, so that the distance between the axis of the second sleeve 324 and the axis of the second rotating shaft 322 is equal to the radius of the steel pipe to be trimmed;
and adjusting the position of the adjustable rotating arm of the rotary control mechanism 200 to ensure that the distance between the axial line of the sleeve I224 and the axial line of the rotating shaft I222 is approximately equal to the radius of the radial hole of the steel pipe to be trimmed.
Starting a second motor of the trimming device, and starting the first motor;
rotating the height adjusting nut, slowly lowering and adjusting the position of the trimming cutter, and locking after meeting the requirements;
the first motor 231 drives the belt 234 and the second belt 235 to rotate through the first belt 233, so as to drive the first rotating shaft 222 to drive the adjustable rotating arm 223 and the first sleeve 224 to rotate circumferentially along the vertical cylindrical surface where the radial hole on the steel pipe is located;
meanwhile, the adjustable swing arm 323, the second sleeve 324 and the sliding rod 325 of the swing control mechanism 300 are driven by the circular motion of the adjustable swing arm 223 and the first sleeve 224 to swing back and forth with the center of the second rotating shaft 322 as an arc center, and then the sliding rod 325 drives the trimming cutter 423 of the trimming device 400 to move up and down along the arc surface of the steel pipe;
the two motions of the circumferential rotation and the up-and-down motion are combined, so that the trimming tool 423 makes a curvilinear motion along a radial orifice on the steel pipe, and the radial orifice is polished and trimmed or chamfered and the like.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims (8)

1. The utility model provides a steel pipe radial hole mouth trimming chamfer device which characterized by includes:
a swing control mechanism (200) including a swing mechanism (220) and a driving mechanism (230) for driving the swing mechanism (220);
the rotating control mechanism comprises a rotating mechanism (220) and a driving mechanism (230), and is connected with the rack (100) through a first substrate (210); the swing mechanism (220) comprises a first rotating shaft (222) which is in transmission with the driving mechanism (230), the bottom of the first rotating shaft (222) is provided with a first adjustable rotating arm (223), and one end of the first adjustable rotating arm (223) is provided with a first sleeve (224);
the swing control mechanism (300), the swing control mechanism (300) is connected with the frame (100); the swing control mechanism (300) comprises a swing mechanism (320), the swing mechanism (320) comprises a second rotating shaft (322), the second rotating shaft (322) is connected with a second adjustable swing arm (323), a second sleeve (324) is arranged at the top of the second adjustable swing arm (323), a sliding rod (325) is arranged in the second sleeve (324), and a third sleeve (326) is arranged at the end part of the sliding rod (325);
the trimming device (400) comprises a driving device, a trimming cutter (423) is connected to the output end of the driving device, a cylinder (411) is connected to the other end of the driving device in the upward direction, and the cylinder (411) penetrates through a sleeve III (326) to be connected with the sleeve III (326).
2. The steel pipe radial orifice trimming and chamfering device according to claim 1, wherein the driving mechanism (230) comprises a first motor (231), a first belt wheel (233) is arranged at the output end of the first motor (231), a second belt wheel (235) is arranged on the first rotating shaft (222), and the first belt wheel (233) is connected with the second belt wheel (235) through a belt (234).
3. The steel pipe radial hole finishing chamfer device according to claim 1, wherein the first rotating shaft (222) is connected with the first base plate (210) through a first bearing seat (221).
4. The trimming and chamfering device for the radial hole opening of the steel pipe according to claim 1, wherein the frame (100) comprises a base (101), the base (101) is provided with a V-shaped block (109) for placing the steel pipe (011), the side part of the base (101) is provided with a spiral guide post (102) and a round guide post (103) which are parallel to each other, the spiral guide post (102) is sequentially provided with a height adjusting nut (106) and a first guide sleeve (104) from bottom to top, and the first guide sleeve (104) is provided with a locking screw (107); and a second guide sleeve (105) is arranged on the round guide post (103), and a connecting plate (108) for connecting the rotary control mechanism (200) and the swing control mechanism (300) is arranged on the first guide sleeve (104) and the second guide sleeve (105).
5. The steel pipe radial hole finishing chamfering device according to claim 4, wherein the second rotating shaft (322) is connected with a second bearing seat (321), the second bearing seat (321) is connected with a second base plate (310), and the second base plate (310) is connected with the connecting plate (108) through a side plate (311).
6. The steel pipe radial orifice trimming and chamfering device according to claim 4, wherein the first base plate (210) is connected with the connecting plate (108) through a vertical plate (211).
7. The steel pipe radial hole finishing chamfer device according to claim 1, wherein the sleeve three (326) is provided with a compression screw (327).
8. The steel pipe radial orifice trimming and chamfering device according to claim 1, wherein the output end of the driving device is connected with the trimming cutter (423) through a clamping head (422), and the driving device is a second motor (421).
CN202121166227.5U 2021-05-28 2021-05-28 Chamfering device for trimming radial orifice of steel pipe Active CN215238290U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121166227.5U CN215238290U (en) 2021-05-28 2021-05-28 Chamfering device for trimming radial orifice of steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121166227.5U CN215238290U (en) 2021-05-28 2021-05-28 Chamfering device for trimming radial orifice of steel pipe

Publications (1)

Publication Number Publication Date
CN215238290U true CN215238290U (en) 2021-12-21

Family

ID=79474139

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121166227.5U Active CN215238290U (en) 2021-05-28 2021-05-28 Chamfering device for trimming radial orifice of steel pipe

Country Status (1)

Country Link
CN (1) CN215238290U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114473059A (en) * 2022-01-07 2022-05-13 广东天倬智能装备科技有限公司 Simple hand-operated round hole chamfering machine
CN115476004A (en) * 2022-11-04 2022-12-16 潍坊工程职业学院 A deckle edge trimming device for shaping blank finish machining

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114473059A (en) * 2022-01-07 2022-05-13 广东天倬智能装备科技有限公司 Simple hand-operated round hole chamfering machine
CN115476004A (en) * 2022-11-04 2022-12-16 潍坊工程职业学院 A deckle edge trimming device for shaping blank finish machining
CN115476004B (en) * 2022-11-04 2023-01-31 潍坊工程职业学院 A deckle edge trimming device for shaping blank finish machining

Similar Documents

Publication Publication Date Title
CN215238290U (en) Chamfering device for trimming radial orifice of steel pipe
CN111618670A (en) Adjustable twist drill grinding device
CN111360645A (en) Building material grinding device
CN214869235U (en) Vertical shaft end surface grinding machine with numerical control rotary table for automatically adjusting grinding angle
CN114654022A (en) Multi-station full-automatic saw blade grinding machine
CN113290279A (en) Steel pipe radial orifice trimming chamfering device
CN210188713U (en) Steel pipe inside and outside synchronous chamfering equipment
CN217668285U (en) Full-grinding twist drill's upset lathe
CN213916581U (en) Adjustable diamond saw blade brazing coating device
CN215239996U (en) Hand-held type radial drill way trimming chamfering device
CN212371886U (en) Automatic cutting device for large-caliber quartz tube
CN211758924U (en) Slotting device for diamond saw blade
CN108407101B (en) Device for machining conical surface of graphite joint by using sawing machine
CN213469627U (en) Arc surface multi-angle step hole machining device
CN111790949A (en) Grinding machine and production line for circular saw blade production
CN219464934U (en) Saw bench for cutting round steel
CN215092461U (en) Grinding device applied to preparation of high-hardness glass drill bit
CN214392576U (en) Double-end pipe cutting machine capable of adjusting cutting angle
CN221246950U (en) Double-cutter vertical numerical control lathe
CN214237580U (en) Automatic deburring device for handrail pipe of weeding machine
CN216065842U (en) Adjustable steel pipe end facing machine
CN117984112B (en) Device and method for machining exhaust groove of double U-shaped pipe fitting of ground source heat pump
CN220533259U (en) Quick unloading instrument of reinforcement circle
CN214517639U (en) High-precision adjustable annular groove cutter
CN219900517U (en) Transmission worm processingequipment

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant