CN211314221U

CN211314221U - Protective knife of shield machine scraper knife holder

Info

Publication number: CN211314221U
Application number: CN201922216299.5U
Authority: CN
Inventors: 陈晓晓
Original assignee: Shandong Tuoda Engineering Equipment Co ltd
Current assignee: Shandong Tuoda Engineering Equipment Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-08-21
Anticipated expiration: 2029-12-12

Abstract

The utility model belongs to the field of shield machines, in particular to a protective knife of a scraper knife holder of a shield machine, which aims at the problem that the rear knife face of the prior scraper is made of non-wear-resistant metal, the abrasion speed of the soil body to the rear knife face of the scraper is very high, when the soil body is abraded to a certain degree, the soil body can abrade the knife holder of the installation scraper at the lower part of the rear knife face of the scraper, the scheme is provided, which comprises a spoke on the shield machine, one side of the spoke is provided with a fixed plate, and one side of the spoke is provided with a clamping groove, a pressure bar is connected in the clamping groove in a sliding way, the utility model can realize the fixed installation of the scraper on the spoke by a clamping way, thereby the operation is more convenient when the scraper needs to be replaced, then under the effect of friction resistance, the intensity of the protective knife can be effectively improved, the further protection of the, the service life of the scraper can be effectively prolonged, and the use cost is greatly reduced.

Description

Protective knife of shield machine scraper knife holder

Technical Field

The utility model relates to a shield constructs quick-witted technical field, especially relates to a shield constructs protection sword of quick-witted scraper blade holder.

Background

The shield machine is a special engineering machine for tunneling. The parts of the front part of the shield machine are mainly as follows: the front part of the cutter head is provided with a front shield notch ring and a soil bin in the front shield notch ring and the like. The cutter head is provided with a plurality of cutters such as a scraper, a hob and a pilot cutter, and the cutter head is provided with a hole to form a slag inlet. When the soil excavation cutting machine works, the cutter head rotates forwards and reversely alternately, and the hob and the pilot cutter which are arranged on the cutter head complete excavation cutting on soil bodies under the driving of the rotation of the cutter head.

Because the rear knife face of the scraper is made of non-wear-resistant metal, the soil body can quickly wear the rear knife face of the scraper, and when the soil body is worn to a certain degree, the soil body can wear a knife holder which is positioned at the lower part of the rear knife face of the scraper and is provided with the scraper. When the mounting screw hole on the cutter seat is worn, the scraper cannot be replaced, the cutter seat must be replaced, and the cutter seat is welded and mounted on the cutter head again. The shield machine works in an underground tunnel, the welding tool apron is inconvenient to replace, the working efficiency is seriously influenced by frequent replacement, and the engineering cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving and having behind the scraper knife face among the prior art to make for the metal that does not wear, the soil body is very fast to the rate of wear of knife face behind the scraper, after its wearing and tearing to a certain degree, the soil body will carry out the shortcoming of wearing and tearing to the blade holder of the installation scraper that lies in behind the scraper knife face lower part, and the protection sword of shield structure machine scraper blade holder that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a protection knife of a shield machine scraper knife holder comprises spokes on a shield machine, wherein one side of each spoke is provided with a fixed plate, one side of each spoke is provided with a clamping groove, a pressing rod is connected in the clamping groove in a sliding mode, the top of one side of the pressing rod extends to the outer side of each spoke and is fixedly provided with a protection knife, the protection knives are clamped with the fixed plates, one side of each fixed plate is fixedly provided with a scraper, a moving opening is formed in the inner wall of one side of each clamping groove, the inner walls of the bottoms of the two sides of the moving opening are both rotatably connected with rotating rods, the bottom of each pressing rod is fixedly provided with a limiting plate, one ends of the two rotating rods extend into the clamping grooves and are both in close contact with the tops of the limiting plates, the tops of the rotating rods are rotatably connected with linkage rods, the top ends of the two linkage rods are rotatably, one end of the screw rod extends into the thread cover and is in threaded connection with the inner wall of the thread cover.

Preferably, fixed mounting has two installation pieces on one side inner wall of removal mouth, and rotates on two installation pieces and be connected with same screw rod, threaded connection has the threading board on the screw rod, and the threading board rotates with the screw thread cover to be connected, and fixed mounting has same transmission rack on two installation pieces, and the screw thread covers and goes up fixed cover and be equipped with the gear, the gear meshes with the transmission rack mutually, utilizes transmission rack and gear can conveniently drive the screw thread cover and rotate.

Preferably, the bottom of protection sword and the equal fixed mounting in bottom of fixed plate have the locating piece, and the top of spoke and the top of fixed plate have all seted up the arc type groove, and one side of two locating pieces extends to two arc type inslots respectively and clamps mutually with two arc type grooves respectively, utilizes locating piece and arc type groove can realize heating the scraper.

Preferably, the top sliding connection of screw rod has the connecting cover, and fixed cover is equipped with the removal ring gear on the connecting cover, fixed mounting has the arc type rack on the spoke, remove the ring gear and mesh mutually with the arc type rack, utilize to remove ring gear and arc type rack and can realize fixing a position the screw rod.

Preferably, equal fixed mounting has magnet on the one end of screw rod and the one side inner wall of connecting the cover, and two magnet one sides that are close to each other establish respectively to N utmost point and S utmost point, and two magnet are laminated mutually, utilize the laminating of two magnets, can conveniently realize spacing connecting the cover.

The utility model discloses in, shield constructs protection sword of quick-witted scraper blade holder

The screw rod, the threaded plate, the threaded cover, the gear, the transmission rack and the screw rod are matched, the screw rod is rotated to drive the threaded plate to move downwards, when the threaded plate moves downwards, the threaded cover can be driven to rotate under the matching of the gear and the transmission rack, the screw rod can be driven to move transversely, the rotating rod can be driven to rotate until the rotating rod is rotated to be in a horizontal state, the limiting plate can be pressed tightly, and meanwhile, the scraper can be installed tightly under the action of the positioning block and the arc-shaped groove;

the strength of the protective knife can be enhanced through the wear-resistant layer, the wear-resistant performance is effectively improved, and the service life of the protective knife can be further prolonged;

the connecting cover, the movable gear ring and the arc-shaped rack are matched, after the scraper is clamped, the movable cover can be pushed, so that the arc-shaped rack is meshed with the movable gear ring, the rotating brake effect of the connecting cover is realized, and one side, close to each other, of the two magnets is in heteropolar arrangement, so that when the two magnets are attached to each other, the connecting cover can be limited, and the connecting cover can be prevented from moving randomly;

the utility model discloses a mode that clamps can realize scraper fixed mounting on the spoke to this can be when the scraper needs to be changed, and it is more convenient to operate, later under antifriction's effect, can effectively improve the intensity of protection sword, and further can realize the protection to the scraper, so when using, can effectual extension scraper's life, makes use cost greatly reduced.

Drawings

Fig. 1 is a front view of a protective knife of a scraper knife holder of a shield tunneling machine according to the present invention;

fig. 2 is a front view of an internal structure of a connecting cover of a protection knife of a shield machine scraper knife holder provided by the utility model;

fig. 3 is a front view of a connection structure of a thread plate, a thread cover and a screw rod of a protection knife of a scraper knife holder of a shield tunneling machine according to the present invention;

fig. 4 is a three-dimensional view of a protective knife fixing plate and a scraper connecting structure of a shield tunneling machine scraper knife holder according to the present invention;

fig. 5 is an enlarged view of a structure a in fig. 1 of a protective knife of a scraper knife holder of a shield tunneling machine according to the present invention.

In the figure: 1 spoke, 2 fixed plate, 3 scraper, 4 locating block, 5 protection knife, 6 wear layer, 7 compression bar, 8 clamping groove, 9 rotation rod, 10 linkage rod, 11 moving port, 12 screw, 13 thread plate, 14 thread cover, 15 gear, 16 transmission rack, 17 connecting cover, 18 moving gear ring, 19 magnet, 20 arc rack, 21 screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-5, a protection knife of a shield machine scraper knife holder comprises a spoke 1 on a shield machine, a fixed plate 2 is arranged on one side of the spoke 1, a clamping groove 8 is formed on one side of the spoke 1, a pressure rod 7 is slidably connected in the clamping groove 8, the top of one side of the pressure rod 7 extends to the outer side of the spoke 1 and is fixedly provided with the protection knife 5, the protection knife 5 is clamped with the fixed plate 2, a scraper 3 is fixedly arranged on one side of the fixed plate 2, a moving port 11 is formed on the inner wall of one side of the clamping groove 8, rotating rods 9 are rotatably connected on the inner walls of the bottoms of the two sides of the moving port 11, a limiting plate is fixedly arranged at the bottom end of the pressure rod 7, one ends of the two rotating rods 9 extend into the clamping groove 8 and are tightly contacted with the tops of the limiting plate, a linkage rod 10 is, a screw cap 14 is rotatably connected to the inner wall of one side of the moving port 11, and one end of the screw rod 21 extends into the screw cap 14 and is in threaded connection with the inner wall of the screw cap 14.

The utility model discloses in, fixed mounting has two installation pieces on one side inner wall of removal mouth 11, and rotates on two installation pieces and be connected with same screw rod 12, and threaded connection has screw plate 13 on the screw rod 12, and screw plate 13 rotates with screw thread cover 14 to be connected, and fixed mounting has same drive rack 16 on two installation pieces, and fixed cover is equipped with gear 15 on the screw thread cover 14, and gear 15 meshes with drive rack 16 mutually.

The utility model discloses in, the bottom of protection sword 5 and the equal fixed mounting in bottom of fixed plate 2 have locating piece 4, and spoke 1's top and fixed plate 2's top have all seted up the arc type groove, and one side of two locating pieces 4 extends to two arc type inslots respectively and clamps mutually with two arc type grooves respectively.

The utility model discloses in, the top sliding connection of screw rod 12 has connecting cover 17, and fixed cover is equipped with on the connecting cover 17 and removes the ring gear 18, and fixed mounting has camber rack 20 on spoke 1, removes ring gear 18 and camber rack 20 and meshes mutually.

The utility model discloses in, equal fixed mounting has magnet 19 on the one end of screw rod 12 and the one side inner wall of connecting cover 17, and two magnet 19 one sides that are close to each other establish respectively to the N utmost point and the S utmost point, and two magnet 19 are laminated mutually.

Example two

Referring to fig. 1-5, a protection knife of a shield machine scraper knife holder comprises a spoke 1 on a shield machine, a fixed plate 2 is arranged on one side of the spoke 1, a clamping groove 8 is arranged on one side of the spoke 1, a pressure rod 7 is slidably connected in the clamping groove 8, the top of one side of the pressure rod 7 extends to the outer side of the spoke 1 and is fixedly provided with a protection knife 5, the protection knife 5 is clamped with the fixed plate 2, a scraper 3 is fixedly arranged on one side of the fixed plate 2, a moving port 11 is arranged on the inner wall of one side of the clamping groove 8, rotating rods 9 are rotatably connected on the inner walls of the bottoms of two sides of the moving port 11, a limiting plate is fixedly arranged at the bottom end of the pressure rod 7, one ends of the two rotating rods 9 extend into the clamping groove 8 and are tightly contacted with the tops of the limiting plate, a linkage rod 10 is rotatably connected at the top of the rotating rod 9, the top ends, one end of the screw rod 21 extends into the screw cap 14 and is in threaded connection with the inner wall of the screw cap 14.

Wherein, through the screw 12, the thread plate 13, the thread cover 14, the gear 15, the transmission rack 16 and the screw 21 are matched, the screw 12 is rotated to drive the thread plate 13 to move downwards, when the thread plate 13 moves downwards, the gear 15 and the transmission rack 16 are matched to drive the thread cover 14 to rotate, so as to drive the screw 21 to move transversely, namely, to drive the rotating rod 9 to rotate, until the rotating rod 9 rotates to a horizontal state, the limiting plate can be pressed, meanwhile, under the action of the positioning block 4 and the arc-shaped groove, the scraper 3 can be tightly installed, the strength of the protective knife 5 can be enhanced through the wear-resistant layer 6, the wear-resistant performance is effectively improved, the service life of the protective knife 5 can be further prolonged, through the connection cover 17, the movable gear ring 18 is matched with the arc-shaped rack 21, after the scraper 3 is clamped, can promote to remove cover 17 for arc type rack 21 meshes with removal ring gear 18, realizes the rotation braking effect to connecting cover 17, and one side that two magnet 19 are close to each other is heteropolar setting, can be when two magnet 19 are laminated, can realize spacing to connecting cover 17, can prevent that connecting cover 17 from removing at will, the utility model discloses a mode that clamps can realize 3 fixed mounting on spoke 1 to this can be when scraper 3 is changing in needs, and the operation is more convenient, later under the effect of antifriction 6, can effectively improve the intensity of protection sword 5, further can realize the protection to scraper 3, so when using, can effectual extension scraper 3's life for use cost greatly reduced.

The utility model discloses in, fixed mounting has two installation pieces on one side inner wall of removal mouth 11, and rotate on two installation pieces and be connected with same screw rod 12, threaded connection has screw plate 13 on the screw rod 12, and screw plate 13 rotates with screw thread cover 14 to be connected, fixed mounting has same drive rack 16 on two installation pieces, and fixed cover is equipped with gear 15 on the screw thread cover 14, gear 15 meshes with drive rack 16 mutually, utilizes, drive rack 16 and gear 15 can conveniently drive screw thread cover 14 and rotate.

The utility model discloses in, the bottom of protection sword 5 and the equal fixed mounting in bottom of fixed plate 2 have locating piece 4, and spoke 1's top and fixed plate 2's top have all seted up the arc type groove, and one side of two locating pieces 4 extends to two arc type inslots respectively and clamps mutually with two arc type grooves respectively, utilizes locating piece 4 and arc type groove to realize heating scraper 3.

The utility model discloses in, the top sliding connection of screw rod 12 has connecting cover 17, and fixed cover is equipped with the removal ring gear 18 on the connecting cover 17, and fixed mounting has camber rack 20 on spoke 1, removes ring gear 18 and camber rack 20 and meshes mutually, utilizes to remove ring gear 18 and camber rack 20 and can realize fixing a position screw rod 12.

The utility model discloses in, equal fixed mounting has magnet 19 on the one end of screw rod 12 and one side inner wall of connecting cover 17, and two magnet 19 one sides that are close to each other establish respectively to the N utmost point and the S utmost point, and two magnet 19 are laminated mutually, utilize two magnet 19' S laminating, can conveniently realize spacing connecting cover 17.

In the utility model, firstly, the fixing plate 2 is placed on the spoke 1, and the positioning block 4 is enabled to enter the arc-shaped groove on the spoke 1, then the protection knife 5 is pushed downwards, when the limiting plate is moved to the lowest part of the clamping groove 8, the positioning block 4 on the protection knife 5 can be enabled to enter the arc-shaped groove on the fixing plate 2, at the moment, the rotatable screw 12 drives the thread plate 13 to move downwards, when the thread plate 13 moves downwards, the thread cover 14 is driven to move downwards, at the moment, the thread cover 14 is driven to rotate under the matching of the gear 15 and the transmission rack 16, the screw 21 is driven to move transversely, at the moment, the rotating rod 9 is driven to rotate through the linkage rod 10, until the rotating rod 9 is rotated to the horizontal state, the limiting plate can be pressed, and simultaneously under the action of the positioning block 4 and the arc-shaped groove, can realize the inseparable installation to the scraper 3, can realize the intensity to reinforcing protection sword 5 through wearing layer 6, effectively improve wear resistance, further can realize prolonging protection sword 5 life, after pressing from both sides tight scraper 3, can promote and remove cover 17, make and remove the ring gear 18 and remove, at this moment can make the arc-shaped rack 21 mesh with removing ring gear 18, realize the rotation braking effect to connecting cover 17, and one side that two magnets 19 are close to each other is heteropolar setting, can realize spacing to connecting cover 17 when two magnets 19 are laminated, can prevent connecting cover 17 from removing at will, can realize to scraper 3 fixed mounting on spoke 1, so can when scraper 3 needs to be changed, the operation is more convenient, later under the effect of antifriction 6, can effectively improve protection sword 5's intensity, further, the scraper 3 can be protected, so that the service life of the scraper 3 can be effectively prolonged when the scraper is used, and the use cost is greatly reduced.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The protection knife of the shield machine scraper knife holder comprises spokes (1) on a shield machine and is characterized in that one side of each spoke (1) is provided with a fixed plate (2), one side of each spoke (1) is provided with a clamping groove (8), a pressing rod (7) is connected in the clamping groove (8) in a sliding mode, the top of one side of the pressing rod (7) extends to the outer side of each spoke (1) and is fixedly provided with a protection knife (5), the protection knife (5) is clamped with the fixed plates (2), one side of each fixed plate (2) is fixedly provided with a scraper (3), one inner wall of one side of each clamping groove (8) is provided with a moving port (11), two inner walls at the bottoms of two sides of each moving port (11) are respectively and rotatably connected with a rotating rod (9), the bottom of each pressing rod (7) is fixedly provided with a limiting plate, and one end of each rotating rod (9) extends into the clamping groove (8) and is respectively, the top of dwang (9) is rotated and is connected with gangbar (10), and the top of two gangbars (10) is rotated and is connected with same lead screw (21), it is connected with screw thread cover (14) to rotate on one side inner wall of mouth (11) to move, the one end of lead screw (21) extend to in screw thread cover (14) and with the inner wall threaded connection of screw thread cover (14).

2. The protective knife of the shield tunneling machine scraper knife holder according to claim 1, wherein two mounting blocks are fixedly mounted on an inner wall of one side of the moving port (11), the two mounting blocks are rotatably connected with a same screw (12), a threaded plate (13) is in threaded connection with the screw (12), the threaded plate (13) is rotatably connected with a threaded cover (14), a same transmission rack (16) is fixedly mounted on the two mounting blocks, a gear (15) is fixedly sleeved on the threaded cover (14), and the gear (15) is meshed with the transmission rack (16).

3. The protection knife of the shield tunneling machine scraper knife holder according to claim 2, characterized in that the bottom of the protection knife (5) and the bottom of the fixing plate (2) are both fixedly provided with positioning blocks (4), the top of the spoke (1) and the top of the fixing plate (2) are both provided with arc-shaped grooves, and one side of each of the two positioning blocks (4) extends into and is clamped with the two arc-shaped grooves respectively.

4. The shield tunneling machine scraper seat protection knife according to claim 2, characterized in that the top end of the screw rod (12) is slidably connected with a connecting cover (17), a movable gear ring (18) is fixedly sleeved on the connecting cover (17), an arc-shaped rack (20) is fixedly installed on the spoke (1), and the movable gear ring (18) is meshed with the arc-shaped rack (20).

5. The shield tunneling machine scraper blade holder protecting knife according to claim 2, characterized in that magnets (19) are fixedly mounted on one end of the screw (12) and the inner wall of one side of the connecting cover (17), the sides of the two magnets (19) close to each other are respectively provided with an N pole and an S pole, and the two magnets (19) are attached to each other.